2,091 results on '"Li, Peng"'
Search Results
2. Edge computing‐based optimal dispatching of charging loads considering dynamic hosting capacity.
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Wu, Chang, Yu, Hao, Zhao, Jinli, Li, Peng, Xu, Jing, and Wang, Chengshan
- Abstract
Owing to the rapid increase in electric vehicle integration and the uncoordinated charging behaviour of electric vehicles, the overloading risk of distribution transformers has deteriorated. This impact caused by large‐scale electric vehicle integration can be effectively reduced through the orderly guidance of electric vehicle charging behaviours. Here, a dispatching strategy for charging loads is proposed to address the problems of the uncoordinated charging demand in electric vehicles and overloading risk of distribution transformers in residential areas. First, an edge‐side dynamic index of the electric vehicle hosting capacity is proposed to guide the optimal dispatching of charging loads. Subsequently, an optimal dispatching model of the charging loads is established based on edge computing. The edge‐side dispatching strategy for the charging loads is then further updated considering the participation willingness of electric vehicle users. Finally, the effectiveness of the proposed control strategy is validated using a modified residential distribution network in Tianjin. The results show that the proposed strategy can effectively decrease the overloading risk of distribution transformers while realizing the efficient operation of electric vehicles on the edge side. [ABSTRACT FROM AUTHOR]
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- 2024
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3. Fabrication and performance evaluation of an innovative asymmetric polyethersulfone composite membrane for efficient methyl blue filtration.
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Wu, Jianming, Ma, Qian, Pang, Qingkai, Xu, Qinjie, Geng, Lihong, Peng, Xiangfang, Chen, Zhenming, Li, Peng, and Chen, Yukun
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MEMBRANE separation ,COMPOSITE membranes (Chemistry) ,ARTIFICIAL membranes ,POROUS materials ,POLYETHERSULFONE ,WATER filtration ,MEMBRANE permeability (Technology) - Abstract
Given the toxicity of wastewater pollutants to both humans and the environment, it is critical to develop a new synthetic membrane with superior permeability and rejection. Herein, a novel asymmetric polyethersulfone (PES) composite filtration membrane was successfully prepared using a simple alternating vacuum‐deposition process with positively charged chitosan and negatively charged cellulose nanofibrils as polycations and polyanions, respectively. As expected, the produced PES composite filtration membranes had a compressed and negatively charged surface, which prevented the anionic dye methyl blue (MB) molecules from infiltrating into the membrane matrix. Consequently, the resulting PES composite filtration membranes exhibited an extremely high MB rejection (99.7%) and a satisfactory flux (37.47 L h−1 m−2 MPa−1). In addition, the composite membrane demonstrated extremely selective removal of anionic dyes in the presence of neutral dyes due to the Donnan effect. Furthermore, the developed PES composite filtration membranes displayed exceptional long‐term stability (99.8% rejection and 36.5 L h−1 m−2 MPa−1 flux after 50 h of filtration) and recycling properties (90.1% flux recovery rate after 3 cycles of running). In conclusion, the PES composite filtration membranes prepared in this study presented great potential in wastewater filtering. [ABSTRACT FROM AUTHOR]
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- 2024
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4. Clinical Characteristics of Moxifloxacin‐Related Arrhythmias and Development of a Predictive Nomogram: A Case Control Study.
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Li, Peng, Zhu, Man, Gao, Ao, Guo, Haili, Fu, An, Zhao, Anqi, and Guo, Daihong
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RISK assessment , *PREDICTION models , *RESEARCH funding , *LOGISTIC regression analysis , *ASPARTATE aminotransferase , *RETROSPECTIVE studies , *HOSPITALS , *PEPTIDE hormones , *QUINOLONE antibacterial agents , *ARRHYTHMIA , *ELECTROCARDIOGRAPHY , *ODDS ratio , *BLOOD sugar , *CASE-control method , *CONFIDENCE intervals , *MEROPENEM , *DISEASE risk factors - Abstract
This study aimed to analyze the incidence, clinical characteristics, and risk factors of moxifloxacin‐related arrhythmias and electrocardiographic alterations in hospitalized patients using real‐world data. Concurrently, a nomogram was established and validated to provide a practical tool for prediction. Retrospective automatic monitoring of inpatients using moxifloxacin was performed in a Chinese hospital from January 1, 2017, to December 31, 2021, to obtain the incidence of drug‐induced arrhythmias and electrocardiographic alterations. Propensity score matching was conducted to balance confounders and analyze clinical characteristics. Based on the risk and protective factors identified through logistic regression analysis, a prediction nomogram was developed and internally validated using the Bootstrap method. Arrhythmias and electrocardiographic alterations occurred in 265 of 21,711 cases taking moxifloxacin, with an incidence of 1.2%. Independent risk factors included medication duration (odds ratio [OR] 1.211, 95% confidence interval [CI] 1.156‐1.270), concomitant use of meropenem (OR 4.977, 95% CI 2.568‐9.644), aspartate aminotransferase >40 U/L (OR 3.728, 95% CI 1.800‐7.721), glucose >6.1 mmol/L (OR 2.377, 95% CI 1.531‐3.690), and abnormally elevated level of amino‐terminal brain natriuretic peptide precursor (OR 2.908, 95% CI 1.640‐5.156). Concomitant use of cardioprotective drugs (OR 0.430, 95% CI 0.220‐0.841) was a protective factor. The nomogram showed good differentiation and calibration, with enhanced clinical benefit. The incidence of moxifloxacin‐related arrhythmias and electrocardiographic alterations is in the range of common. The nomogram proves valuable in predicting the risk in the moxifloxacin‐administered population, offering significant clinical applications. [ABSTRACT FROM AUTHOR]
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- 2024
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5. A study of structural effects on the focusing and imaging performance of hard X‐rays with 20–30 nm zone plates.
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Tong, Xujie, Dhamgaye, Vishal, Chen, Qiucheng, Wu, Qingxin, Deng, Biao, Zhang, Ling, Fox, Oliver, Wang, Hongchang, Zhao, Jun, Chen, Yifang, Xu, Zijian, Li, Peng, and Sawhney, Kawal
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FOCUS (Optics) ,STRUCTURAL plates ,NANOSTRUCTURED materials ,IMAGE intensifiers ,SPATIAL resolution - Abstract
Hard X‐ray microscopes with 20–30 nm spatial resolution ranges are an advanced tool for the inspection of materials at the nanoscale. However, the limited efficiency of the focusing optics, for example, a Fresnel zone plate (ZP) lens, can significantly reduce the power of a nanoprobe. Despite several reports on ZP lenses that focus hard X‐rays with 20 nm resolution – mainly constructed by zone‐doubling techniques – a systematic investigation into the limiting factors has not been reported. We report the structural effects on the focusing and imaging efficiency of 20–30 nm‐resolution ZPs, employing a modified beam‐propagation method. The zone width and the duty cycle (zone width/ring pitch) were optimized to achieve maximum efficiency, and a comparative analysis of the zone materials was conducted. The optimized zone structures were used in the fabrication of Pt‐hydrogen silsesquioxane (HSQ) ZPs. The highest focusing efficiency of the Pt‐HSQ‐ZP with a resolution of 30 nm was 10% at 7 keV and >5% in the range 6–10 keV, whereas the highest efficiency of the Pt‐HSQ‐ZP with a resolution of 20 nm was realized at 7 keV with an efficiency of 7.6%. Optical characterization conducted at X‐ray beamlines demonstrated significant enhancement of the focusing and imaging efficiency in a broader range of hard X‐rays from 5 keV to 10 keV, demonstrating the potential application in hard X‐ray focusing and imaging. [ABSTRACT FROM AUTHOR]
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- 2024
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6. A Comparative Review on Carbon Nanomaterials and Their Impact on Plant Growth With the Lens of Green Chemistry Principles.
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Peng, Wei, Li, Peng, Zia, Muhammad, Bhuiyan, Shamsul A., Liu, Yiyi, Chen, Dechao, Tudi, Muyesaier, Gao, Yongsheng, Yan, Xuecheng, Jia, Yi, and Li, Qin
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Carbon nanomaterials (CNMs), comprising carbon dots, graphene‐related materials, and carbon nanotubes, have significant potential for enhancing agricultural productivity. Their compositional compatibility and exceptional properties intrigue a great deal of explorations in agricultural applications, such as fertilizers, pesticides, and regulators of plant growth. However, the evaluation of their agricultural applicability often lacks quantitative sustainability metrics, with insufficient scrutiny on the carbon footprint and scalability of the manufacturing. This review attempts to provide a quantitative ranking system for evaluating the manufacturing processes of the CNMs by applying the twelve principles of Green Chemistry, particularly in the context of agriculture applications. The review also offers a systematically organized account of CNMs' effects on plant systems, encompassing nutrient enhancement, photosynthesis, soil amelioration, disease resistance, and phytotoxicity, which can provide design rationales for the further development of CNMs. [ABSTRACT FROM AUTHOR]
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- 2024
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7. Customized Flexible Osteoid Electrode for Traumatic Brain Injury Induced Posttraumatic Epilepsy Monitoring.
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Wang, Junjie, Yu, Jingwei, Wei, Hongbo, Wang, An, Hou, Zishuo, Kumi, Moses, Wang, Xinge, Wang, Tengjiao, Li, Peng, and Huang, Wei
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POROUS electrodes ,BRAIN injuries ,BRAIN diseases ,COGNITION disorders ,PATIENT monitoring ,OSSEOINTEGRATION - Abstract
Traumatic brain injury (TBI)‐induced post‐traumatic epilepsy (PTE) is a serious brain disease that causes the loss of motor functions, cognitive impairments, and even death. Real‐time and long‐term electrophysiological signal monitoring has significant implication for the treatment of patient with TBI. Brain–computer interfaces (BCIs) utilizing flexible electrodes enable accurate epilepsy identification by electrocorticography (ECoG) signal monitoring. In this study, a customized flexible osteoid electrode is developed, which contributes to demands and personal differentiation among patients with TBI. The end product of osteoid electrode after full osseointegration will be a stable and firmly integrated structure within the bone tissue, providing a secure platform for continuous electrophysiological signal monitoring. The flexibility and conductivity of the osteoid electrode enables high‐quality and long‐term epilepsy monitoring. Biocompatibility of the osteoid electrode is also demonstrated by in vitro cell experiments. Simultaneously, the porous osteoid electrode also exhibits osseointegration ability based on potential long‐term ECoG signal monitoring, which suggests its potential for the comprehensive treatment of TBI patients. This work not only introduces a potential therapeutic scaffold for TBI‐related diseases, but also provides promising techniques for clinical ECoG monitoring in patients with TBI. [ABSTRACT FROM AUTHOR]
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- 2024
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8. Defect‐Expedited Photocarrier Separation in Zn2In2S5 for High‐Efficiency Photocatalytic C─C Coupling Synchronized with H2 Liberation from Benzyl Alcohol.
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Ma, Minmin, Wang, Ran, Shi, Li, Li, Ronghua, Huang, Jie, Li, Zhuo, Li, Peng, Konysheva, Elena Yu., Li, Yanbo, Liu, Gang, and Xu, Xiaoxiang
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BENZYL alcohol ,COUPLING reactions (Chemistry) ,CONDUCTION bands ,SURFACE reactions ,ACTIVATION energy - Abstract
Photocatalytic carbon‐carbon (C─C) coupling of benzyl alcohol is a promising means to coproduce the value‐added chemicals with H2 but is generally subject to low efficiency in terms of photon utilization. Here, efficient benzyl alcohol C─C coupling is achieved over Zn2In2S5 containing a tunable content of Zn vacancies (VZn). The VZn tends to form shallow defect states below the conduction band that can expedite photocarrier separation by collecting the photo‐generated electrons. The VZn‐collected electrons are essential for a high selectivity of the C─C coupling reactions because they enable a fast elimination of the byproduct benzaldehyde by catalyzing its reduction back to the ketyl radicals. Under simulated sunlight, the VZn‐containing Zn2In2S5 accomplishes ≈100% conversion of benzyl alcohol for merely 1 h and attains ≈100% selectivity for the C─C coupling compounds for 2 h, delivering an apparent quantum yield as high as 7.7% at 420 ± 20 nm. The benefits of VZn have also been verified by the theoretical calculations that indicate reduced energy barriers for various surface reactions in the presence of VZn. This work brings fresh mechanistic insights into the role of VZn and can serve as a useful guideline in the design of efficient photocatalysts. [ABSTRACT FROM AUTHOR]
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- 2024
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9. A Giant Optically Anisotropic Phosphate Driven by Mixed Valence Mercury Units.
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Li, Peng‐Fei, Hu, Chun‐Li, Mao, Jiang‐Gao, and Kong, Fang
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TECHNOLOGICAL innovations , *OPTICAL properties , *BIREFRINGENCE , *CRYSTAL structure , *OPTICS - Abstract
Phosphate crystals are known for their low birefringence, a result of the symmetrical tetrahedral structure of PO4 groups. Attempts to increase their birefringence have traditionally involved the incorporation of highly anisotropic ions and groups. Yet, the majority of the modified phospates still exhibit a birefringence value below 0.1, due to the counteracting effects of anisotropic elements within the tetrahedral coordination. The present study has for the first time discovered a novel birefringence‐active HgI2HgIIO9 unit and successfully constructed a highly anisotropic layered structure, which ingeniously prevents the mutual cancellation of anisotropic effects. This synthesis of HgI2HgII(Te2O4)2(HPO4)2 confirms the effectiveness of this strategy, yielding a birefringence of 0.444 at 546 nm, which outperforms 99% of phosphate crystals and surpasses that of commercial counterparts like YVO4 (0.209@1064 nm) and CaCO3 (0.175@533 nm). Structural analysis and PAWED calculations indicate that the significant birefringence is attributed to the synergistic interaction between the HgI2HgIIO9 unit (23.76%), HPO4 tetrahaedron (24.24%) and TeO4 group (51.99%). This breakthrough paves the way for phosphates to meet the demands of modern technological advancements, expanding their potential applications in the field of anisotropic optics. [ABSTRACT FROM AUTHOR]
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- 2024
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10. Oxide Derivatives of Nb2CTx MXene and Their Application as Electron Transport Layers in Perovskite Solar Cells: Unraveling the Oxidation Process and Functionalization.
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Yang, Lin, Liu, Ziyan, Zheng, Tianfang, Li, Peng, Ma, Jiangang, Zhang, Xintong, Zhu, Hancheng, Wang, Xiao‐Feng, and Liu, Yichun
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- 2024
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11. Polymorphic Heterogeneous Polar Structure Enabled Superior Capacitive Energy Storage in Lead‐Free Relaxor Ferroelectrics at Low Electric Field.
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Xi, Jiachen, Liu, Jikang, Bai, Wangfeng, Wu, Shiting, Zheng, Peng, Li, Peng, and Zhai, Jiwei
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- 2024
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12. Advances in Directional Liquid Transport Textiles: Mechanism, Construction, and Applications.
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Kuang, Xiaoju, Zhang, Zhenfang, Ma, Xiaotao, Zhu, Lingfeng, Li, Yitong, Li, Peng, Fu, Yang, Ma, Tianyi, He, Haijun, Ramakrishna, Seeram, and Ma, Pibo
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TEXTILE technology ,ENVIRONMENTAL protection ,CLOTHING & dress ,WETTING ,DISTILLATION - Abstract
The seamless integration of emerging directional liquid transport (DLT) technology with traditional textile materials has ushered in the next‐generation multifunctional textiles, i.e., DLT textiles, which will play a vital role in areas such as wearable smart materials and ecological environmental protection. To further promote the combination of DLT technology and textile technology, a concise overview of the research progress in DLT textiles, including the basic transport mechanisms, various preparation strategies and diversified applications of DLT textiles is provided. In this review, the theoretical mechanisms of directional transport from the perspective of wetting and wicking is discussed. Besides, the preparation strategies of DLT textiles, and categorized them into three categories is summarized: fiber‐based DLT textiles, fabric‐based DLT textiles, and fiber/fabric hybrid‐based textiles. Subsequently, the current and potential applications of DLT textiles are classified and discussed, mainly focusing on functional clothing, oil‐water separation, fog collection, distillation, sensors, biomedicine, and so on. Finally, the challenges and prospects of DLT textile research to enhance the functionality and application performance is outlined. [ABSTRACT FROM AUTHOR]
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- 2024
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13. A Fast‐Charging and Ultra‐Stable Sodium‐Ion Battery Anode Enabled by N‐Doped Bi/BiOCl in a Carbon Framework.
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Wei, Sheng‐Li, Yang, Yan‐Ling, Chen, Jin‐Geng, Shi, Xiao‐Lei, Sun, Yu, Li, Peng, Tian, Xue‐Feng, Chen, Hua‐Jun, Luo, Zhao, and Chen, Zhi‐Gang
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DENSITY functional theory ,STRUCTURAL stability ,CYCLING ,ANODES ,ELECTROLYTES - Abstract
Owing to the abundant reserves and low cost, sodium‐ion batteries (SIBs) have garnered unprecedented attention. However, their widespread adoption is hindered by the scarcity of alternative anodes with fast‐charging capability and high stability. To overcome this challenge, a fast‐charging SIB anode, N‐doped Bi/BiOCl embedded in a carbon framework (Bi/BiOCl@NC) with a fast Na+ transport channel and ultra‐high structural stability, is developed. During cycling in ether electrolyte, Bi/BiOCl@NC undergoes a remarkable transformation into a 3D porous skeleton, which significantly reduces the Na+ transport pathway and accommodates volume changes. By employing density functional theory calculations to simulate the storage behavior of Na+ in the structure, Bi/BiOCl@NC is theoretically characterized to have a low Na+ transport barrier (0.056 eV) and outstanding electronic conductivity. Such unique characteristics induce Bi/BiOCl@NC anode to have an ultra‐high Na+ storage capacity of 410 mAh·g−1 at 20 A·g−1 and exhibit outstanding cycling stability with over 2300 cycles at 10 A·g−1. This study provides a rational scenario for the fast‐charging anode design and will enlighten more advanced research to promote the exploitation of SIBs. [ABSTRACT FROM AUTHOR]
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- 2024
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14. Applications of plant‐derived extracellular vesicles in medicine.
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Zhu, Yawen, Zhao, Junqi, Ding, Haoran, Qiu, Mengdi, Xue, Lingling, Ge, Dongxue, Wen, Gaolin, Ren, Haozhen, Li, Peng, and Wang, Jinglin
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INFLAMMATORY bowel diseases ,EXTRACELLULAR vesicles ,PATIENT compliance ,GUT microbiome ,ANTINEOPLASTIC agents - Abstract
Plant‐derived extracellular vesicles (EVs) are promising therapeutic agents owing to their natural abundance, accessibility, and unique biological properties. This review provides a comprehensive exploration of the therapeutic potential of plant‐derived EVs and emphasizes their anti‐inflammatory, antimicrobial, and tumor‐inhibitory effects. Here, we discussed the advancements in isolation and purification techniques, such as ultracentrifugation and size‐exclusion chromatography, which are critical for maintaining the functional integrity of these nanovesicles. Next, we investigated the diverse administration routes of EVs and carefully weighed their respective advantages and challenges related to bioavailability and patient compliance. Moreover, we elucidated the multifaceted mechanisms of action of plant‐derived EVs, including their roles in anti‐inflammation, antioxidation, antitumor activity, and modulation of gut microbiota. We also discussed the impact of EVs on specific diseases such as cancer and inflammatory bowel disease, highlighting the importance of addressing current challenges related to production scalability, regulatory compliance, and immunogenicity. Finally, we proposed future research directions for optimizing EV extraction and developing targeted delivery systems. Through these efforts, we envision the seamless integration of plant‐derived EVs into mainstream medicine, offering safe and potent therapeutic alternatives across various medical disciplines. [ABSTRACT FROM AUTHOR]
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- 2024
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15. Pig manure addition promotes organic carbon sequestration dominantly contributed by mineral protection in upland red soil.
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Jia, Long, Li, Peng, Su, Tong, Kong, Dening, Chen, Qianqian, Xu, Li, Jiao, Jiaguo, and Hu, Feng
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RED soils ,SUSTAINABLE agriculture ,ORGANIC fertilizers ,FOURIER transform infrared spectroscopy ,FERTILIZER application - Abstract
Organic fertilizers are essential for enhancing soil organic carbon (SOC) levels and promoting sustainable agriculture. The mechanisms of carbon sequestration in upland red soils using various organic materials are not well understood. Here, the impact of various organic fertilization strategies on SOC fractions, functional groups, iron oxides, and soil aggregates was investigated to clarify the protective mechanisms underlying SOC preservation. Six fertilization regimes were examined: no fertilization (CK), mineral fertilizer (CF), 60% mineral fertilizer (RF), RF + straw (RFS), RF + pig manure (RFP), and RF + vermicompost (RFV). The results demonstrated that SOC contents significantly increased by 62.5% in RFP and 63.1% in RFV compared to the CF treatment, with particulate organic carbon (POC) being the primary contributor. Scanning electron microscopy and X‐ray photoelectron spectroscopy demonstrated that RFP and RFV treatments induced the formation of denser flock‐like aggregates and increased aromatic C content, respectively. Fourier transform infrared spectroscopy analysis indicated that RFV treatment exhibited the highest abundance of functional groups among all treatments. SOC and POC were highly positively correlated with soil chemical properties, soil aggregates, poorly crystalline iron oxides, and aromatic rings. Structural equation models indicated that pig manure and vermicompost directly promoted POC accumulation, while straw provided physical protection for POC by enhancing aggregate formation. Furthermore, pig manure indirectly facilitated the development of POC and mineral‐associated organic carbon via soil biochemical properties and iron oxides, respectively. Overall, the application of organic fertilizers enhanced the physical protection, mineral immobilization, and recalcitrance (alkyl C, aromatic C) of organic carbon, facilitating C sequestration and stability. This study highlights the importance of organic management in upland red soils for increasing SOC storage and maintaining global C balance. [ABSTRACT FROM AUTHOR]
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- 2024
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16. Perioperative toripalimab plus neoadjuvant chemotherapy might improve outcomes in resectable esophageal cancer: an interim analysis of a phase III randomized clinical trial.
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Zheng, Yan, Liang, Guanghui, Yuan, Dongfeng, Liu, Xianben, Ba, Yufeng, Qin, Zimin, Shen, Sining, Li, Zhenxuan, Sun, Haibo, Liu, Baoxing, Gao, Quanli, Li, Peng, Wang, Zongfei, Liu, Shilei, Zhu, Jianping, Wang, Haoran, Ma, Haibo, Liu, Zhenzhen, Zhao, Fei, and Zhang, Jun
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- 2024
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17. Detailed detection and extraction of estuarine tidal channels with multispectral and full‐polarised SAR remote sensing.
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Li, Peng, Li, Shu, Li, Zhenhong, Liang, Cunren, and Wang, Houjie
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SYNTHETIC aperture radar ,MACHINE learning ,COASTS ,RIVER channels ,MULTISPECTRAL imaging - Abstract
Estuarine tidal channels are active geomorphic units in tidal flats. However, accurate information on the spatiotemporal changes in tidal channel systems remains scarce. The width of the tidal channels may vary from several kilometres to tens of centimetres. Monitoring tidal channel evolution is complicated because of periodic tidal scouring, anthropogenic activities and sea level rise. In this study, we propose a synergetic classification method to detect and extract morphological information of estuarine tidal channels with a spatial resolution of up to 3 m by fusing PlanetScope multispectral data with C‐band GaoFen‐3 fully polarised Synthetic Aperture Radar (SAR) data and machine learning algorithms. Considering the Yellow River Estuary as an example, the spectral features, vegetation and water index, polarisation and texture features derived from the multispectral and SAR images were selected as input data for classifiers according to feature importance ranking. Comparison to the maximum likelihood, and support vector machine classifiers, the synergetic classification with random forest showed the best performance, with an overall accuracy of 99.6%. Based on these results, the total number of tidal channels in the Yellow River Estuary reached 872, with a total length of 348.8 km. The spatiotemporal changes in the central axis over the last 4 years (2019–2022) suggest that the evolution of tidal channels was mainly controlled by ocean dynamics and anthropogenic activities. This method provides a cost‐effective alternative to accurately map tidal channel systems in global estuarine and coastal zones and helps to quantitatively describe their morphological evolution, stability and drivers. [ABSTRACT FROM AUTHOR]
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- 2024
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18. Computational Studies of Novel Aniline Pyrimidine WDR5‐MLL1 Inhibitors: QSAR, Molecular Docking, and Molecular Dynamics Simulation.
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Guo, Li Yuan, Wang, Chun Ying, Tong, Jian Bo, Li, Peng, Gao, Peng, Liu, Yuan, Zhang, Ya Kun, Chang, Ze Lei, and Xing, Xiao Yu
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MOLECULAR dynamics ,MOLECULAR docking ,QUARTERLY reports ,DRUG design ,CONTOURS (Cartography) - Abstract
WD repeat‐containing protein 5 (WDR5) and mixed lineage leukemia (MLL) are critical for maintaining tumorigenesis in human cancers. Disruption of the MLL1–WDR5 interaction has been viewed as a promising therapeutic strategy for the treatment of leukemia. Here, we report a series of protein–protein binding interaction modes targeting MLL1‐WDR5 inhibitors using 3D‐QSAR, and molecular docking. CoMFA with q2 = 0.724, r2 = 0.957, rpred2 = 0.874 and CoMSIA with q2 = 0.826, r2 = 0.995, rpred2 = 0.827. Topomer CoMFA results show q2 = 0.807, r2 = 0.976, rpred2 = 0.789, and HQSAR results show q2 = 0.873, r2 = 0.982, rpred2 = 0.794. The 3D‐QSAR model with high validation and prediction performance is successfully constructed. Contour maps and molecular docking results according to the four models, 26 new compounds are finally designed on the computer after molecular screening. Further molecular dynamics simulations (MD) of compounds G01, G04, G09, G43, and G44 with high predicted activity are carried out to explore their possible binding modes. ILE305, PHE133, CYS261, and ALA176 are found to play crucial roles in stabilizing the inhibitor. ADMET predictions are also performed for these 26 new compounds. These results serve as references for the design of effective WDR5‐MLL1 inhibitors in the future. [ABSTRACT FROM AUTHOR]
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- 2024
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19. Eggshell‐Like Carbon Microspheres with Curvature Scheme: Distorted Energy Band and Atomic Charge Waves‐Driven High Performance for Zinc–Air Battery.
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Wang, Qiheng, Li, Ruixue, Feng, Wen, Liu, Mengying, Li, Peng, and Liu, Jingjun
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- 2024
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20. An Electrostatic‐Induction‐Enabled Anti‐Touching Hydrogel Dressing for Chronic Wound Care.
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Yan, Ren, Sun, Zhaoqing, Du, Wanyu, Liu, Nian, Sun, Qizeng, Li, Peng, Liang, Fei, Zhu, Yangzhi, Huang, Wei, and Yu, Hai‐Dong
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CHRONIC wounds & injuries ,PROXIMITY detectors ,HYDROCOLLOID surgical dressings ,WOUND care ,TISSUE wounds ,WOUND healing - Abstract
Chronic wounds are inherently vulnerable to external mechanical contact owing to their impaired physiological states. Accidental touching may lead to secondary damage to delicate wound tissues, including deterioration of tissue and inflammation, thereby prolonging the healing process. In addition, patients encounter nociceptive sensations, indicative of physical discomfort and potential distress. However, the traditional dressings for chronic wounds fail to convey adequate perceptual information to prevent mechanical trauma. An electrostatic‐induction‐enabled anti‐touching hydrogel dressing (EAHD) is proposed, which promotes wound healing and reduces touching‐induced injuries. The EAHD combines a proximity sensor and a pro‐healing hydrogel. The proximity sensor can detect approaching objects, enabling remote perception. More importantly, EAHD and a wireless alarm system are integrated to warn against the detected potential hazards such as unintentional touching. Meanwhile, the EAHD significantly accelerates wound healing in preclinical diabetic mice, ≈38% faster than that of the control group. This study proposes a novel strategy for multifunctional wound dressing that promotes wound healing and prevents accidental touching‐induced secondary damage to the wound. [ABSTRACT FROM AUTHOR]
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- 2024
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21. Multidimensional Multiplexing Liquid Crystal Holograms.
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Li, Peng, Xue, Jiamin, Fan, Xinhao, Wu, Xuanguang, Zhou, Liang, Chen, Weiqi, Liu, Sheng, Wei, Bingyan, Gan, Xuetao, and Zhao, Jianlin
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OPTICAL polarization , *LIQUID crystal states , *SIMULATED annealing , *DEGREES of freedom , *LIQUID crystals - Abstract
As a powerful platform for next‐generation display, planar liquid crystal (LC) optics exhibit attractive properties such as electro‐optical response, high efficiency, and broadband tunability. With planar LC optics applications taking off, multidimensional modulation and multiplexing capability of light wave is becoming crucial. Here, a Pancharatnam‐Berry phase LC hologram is demonstrated that enables the multidimensional modulation of amplitude, phase, and polarization of light, which increases the degree of freedom of multiplexing display to 4 at a single wavelength, realizing the simultaneous decoupling modulation in dual polarization channels in near and far fields. According to the quaternary degeneracy characteristics of the orientation angle of LC molecules implied in Malus' law, the LC holograms are designed using the optimized Gerchberg‐Saxton and annealing algorithms, and it is demonstrated that the spatial and polarization multiplexing of LC holograms have remarkable wavelength‐dependent electrical tunability. This LC hologram paves a promising pathway toward multifunctional LC optics for advanced display and imaging. [ABSTRACT FROM AUTHOR]
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- 2024
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22. Galerkin boundary element method for simulating lightning response of grounding grid in horizontal multilayered soil model considering soil ionization effect.
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Li, Zhong‐Xin, Li, Peng, and Zhao, Xia
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BOUNDARY element methods , *GREEN'S functions , *MUTUAL inductance , *EARTH currents , *IMPULSE response - Abstract
This work proposes a novel mathematical model based on the Galerkin time‐domain boundary element method for accurately calculating the lightning current distribution and lightning impulse response of the buried substation grounding grid, in a multi‐layer horizontal layered soil model, by taking into account the soil ionization effect. To improve computational efficiency, the quasi‐static complex image method and its closed form time‐domain Green's function have been introduced into the model that has the ability to analytically calculate the mutual inductance coefficient between the branch currents of any two conductor segments and the mutual resistance coefficient between the leakage currents. The Galerkin time‐domain boundary element method proposed in this work can simulate the transient lightning impulse response of a substation grounding grid buried in the multi‐layer horizontal layered soil. [ABSTRACT FROM AUTHOR]
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- 2024
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23. Chemical constituents and bioactivities of the essential oils of Magnolia biondii flower buds from three provinces in China.
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Li, Tian‐Xiao, Li, Li‐Peng, Zhang, Da‐Yuan, Zhao, Guo‐Liang, Liang, Yong‐Wei, Jia, Xue‐Wei, Guo, Lei, Xu, Chun‐Ping, and Gao, Xin
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ESSENTIAL oils , *HERBAL medicine , *ANTIBACTERIAL agents , *MAGNOLIAS , *MEDICINAL plants - Abstract
Magnolia biondii flower buds are a well‐known medicinal plant in China, and it is important to determine the differences in aroma, flavour components, and biological activity of the essential oils of M. biondii flower buds (EOM) from different origins. In this study, the essential oils of M. biondii flower buds from Sichuan (EOM‐SC), Anhui (EOM‐AH) and Henan (EOM‐HN) provinces were extracted by hydrodistillation. The condition of the extraction process was optimized. The differences in the flavour compounds were further confirmed by GC–MS and relative odour activity value (ROAV) analyses. In addition, the antibacterial and antioxidant activity was also evaluated. The results showed that the optimized condition for steam distillation was water: flower powder ratio = 10:1 with extraction time for more than 3.0 h. Interestingly, special floral, fruity and freshness flavours were found for EOM‐SC, and the medicinal herb and sweetness odours of EOM‐HN were more prominent. The numbers and contents of flavour compounds in EOM‐SC and EOM‐HN were higher than those of EOM‐AH. Eucalyptol, β‐pinene, linalool, α‐terpineol and sabinene could be proposed as the key mutual flavour compounds for three essential oils. In addition, the strong floral, fruity and freshness aroma of EOM‐SC could be associated with the high ROAVs of α‐terpineol, linalool and sabinene. Moreover, EOM‐SC exhibited better antibacterial and antioxidant activity than those of the other two essential oils. [ABSTRACT FROM AUTHOR]
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- 2024
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24. Exploring the Potentials of Chitin and Chitosan‐Based Bioinks for 3D‐Printing of Flexible Electronics: The Future of Sustainable Bioelectronics.
- Author
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Kumi, Moses, Wang, Tengjiao, Ejeromedoghene, Onome, Wang, Junjie, Li, Peng, and Huang, Wei
- Subjects
FLEXIBLE electronics ,MEDICAL electronics ,THREE-dimensional printing ,ELECTRONIC equipment ,BIOELECTRONICS ,CHITIN - Abstract
Chitin and chitosan‐based bioink for 3D‐printed flexible electronics have tremendous potential for innovation in healthcare, agriculture, the environment, and industry. This biomaterial is suitable for 3D printing because it is highly stretchable, super‐flexible, affordable, ultrathin, and lightweight. Owing to its ease of use, on‐demand manufacturing, accurate and regulated deposition, and versatility with flexible and soft functional materials, 3D printing has revolutionized free‐form construction and end‐user customization. This study examined the potential of employing chitin and chitosan‐based bioinks to build 3D‐printed flexible electronic devices and optimize bioink formulation, printing parameters, and postprocessing processes to improve mechanical and electrical properties. The exploration of 3D‐printed chitin and chitosan‐based flexible bioelectronics will open new avenues for new flexible materials for numerous industrial applications. [ABSTRACT FROM AUTHOR]
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- 2024
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25. Rare variations within the serine/arginine‐rich splicing factor PtoRSZ21 modulate stomatal size to determine drought tolerance in Populus.
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Huang, Rui, Jin, Zhuoying, Zhang, Donghai, Li, Lianzheng, Zhou, Jiaxuan, Xiao, Liang, Li, Peng, Zhang, Mengjiao, Tian, Chongde, Zhang, Wenke, Zhong, Leishi, Quan, Mingyang, Zhao, Rui, Du, Liang, Liu, Li‐Jun, Li, Zhonghai, Zhang, Deqiang, and Du, Qingzhang
- Subjects
ALTERNATIVE RNA splicing ,LOCUS (Genetics) ,GENE expression ,GENETIC transformation ,HAPLOTYPES - Abstract
Summary: Rare variants contribute significantly to the 'missing heritability' of quantitative traits. The genome‐wide characteristics of rare variants and their roles in environmental adaptation of woody plants remain unexplored.Utilizing genome‐wide rare variant association study (RVAS), expression quantitative trait loci (eQTL) mapping, genetic transformation, and molecular experiments, we explored the impact of rare variants on stomatal morphology and drought adaptation in Populus.Through comparative analysis of five world‐wide Populus species, we observed the influence of mutational bias and adaptive selection on the distribution of rare variants. RVAS identified 75 candidate genes correlated with stomatal size (SS)/stomatal density (SD), and a rare haplotype in the promoter of serine/arginine‐rich splicing factor PtoRSZ21 emerged as the foremost association signal governing SS. As a positive regulator of drought tolerance, PtoRSZ21 can recruit the core splicing factor PtoU1‐70K to regulate alternative splicing (AS) of PtoATG2b (autophagy‐related 2). The rare haplotype PtoRSZ21hap2 weakens binding affinity to PtoMYB61, consequently affecting PtoRSZ21 expression and SS, ultimately resulting in differential distribution of Populus accessions in arid and humid climates.This study enhances the understanding of regulatory mechanisms that underlie AS induced by rare variants and might provide targets for drought‐tolerant varieties breeding in Populus. [ABSTRACT FROM AUTHOR]
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- 2024
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26. Null‐type SH2B3 mutations are potential drivers in a subset of Ph‐negative myeloproliferative neoplasms.
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Zhang, Xi, Ding, Yi, Li, Peng, Bourgeois, Kirk, Rangan, Aruna, Herrick, Jennifer L., Pardanani, Animesh, Chen, Dong, Viswanatha, David, He, Rong, and Zheng, Gang
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- 2024
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27. Effects of check dam construction on sediment production and topographic changes in a gully in the Loess Plateau: A rainfall simulation experiment.
- Author
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Xue, Shaobo, Li, Peng, Cui, Zhiwei, Li, Zhanbin, and Shen, Zhenzhou
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SEDIMENTATION & deposition ,RANDOM forest algorithms ,DAM design & construction ,OPTICAL scanners ,SEDIMENT transport - Abstract
To maintain a reasonable sediment regulation system in the Loess Plateau, it is critical to determine the effects of check dam construction on sediment production and topographic changes. An indoor simulation experiment was conducted to investigate sediment production at the outlet section of the gully and micro‐topographic changes within the channel before and after dam construction. The results showed that check dam significantly affected the run‐off and sediment transport processes in the watershed. Specifically, the cross‐sectional morphology index (η) and the width‐depth ratio increased by 10.23% and 40.44%, respectively, while sediment content and particle size decreased by 39.29% and 18.58%, respectively. Additionally, the relative importance of section parameters and micro‐topographic parameters that affect sediment production rate and particle size was ranked using the random forest algorithm. The roughness after check dam construction was identified as a relatively important topographic factor affecting sediment production and particle selection by erosion. These findings provide valuable information for future check dam construction and development in the Loess Plateau region. [ABSTRACT FROM AUTHOR]
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- 2024
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28. MRE11 is essential for the long‐term viability of undifferentiated spermatogonia.
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Tang, Zhenghui, Liang, Zhongyang, Zhang, Bin, Xu, Xiaohui, Li, Peng, Li, Lejun, Lu, Lin‐Yu, and Liu, Yidan
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HOMOLOGOUS recombination ,NIBRIN ,DNA ,APOPTOSIS ,DOUBLE-strand DNA breaks - Abstract
In the meiotic prophase, programmed SPO11‐linked DNA double‐strand breaks (DSBs) are repaired by homologous recombination (HR). The MRE11‐RAD50‐NBS1 (MRN) complex is essential for initiating DNA end resection, the first step of HR. However, residual DNA end resection still occurs in Nbs1 knockout (KO) spermatocytes for unknown reasons. Here, we show that DNA end resection is completely abolished in Mre11 KO spermatocytes. In addition, Mre11 KO, but not Nbs1 KO, undifferentiated spermatogonia are rapidly exhausted due to DSB accumulation, proliferation defects, and elevated apoptosis. Cellular studies reveal that a small amount of MRE11 retained in the nucleus of Nbs1 KO cells likely underlies the differences between Mre11 and Nbs1 KO cells. Taken together, our study not only demonstrates an irreplaceable role of the MRE11 in DNA end resection at SPO11‐linked DSBs but also unveils a unique function of MRE11 in maintaining the long‐term viability of undifferentiated spermatogonia. [ABSTRACT FROM AUTHOR]
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- 2024
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29. Improving Second Language Vowel Production With Hand Gestures Encoding Visible Articulation: Evidence From Picture‐Naming and Paragraph‐Reading Tasks.
- Author
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Xi, Xiaotong, Li, Peng, and Prieto, Pilar
- Abstract
This study investigates whether audiovisual phonetic training with hand gestures encoding visible or nonvisible articulation features has a differential impact on learning second language sounds. Ninety‐nine Catalan–Spanish bilingual students were trained to differentiate English /æ/ and /ʌ/, which differ in the visible lip aperture and nonvisible tongue position, with training involving no gestures, gestures representing the lip aperture, or gestures representing the tongue position. Before, immediately after, and 1 week after the training, participants' perception of the targets was assessed through a word‐identification task, and their production was tested through paragraph‐reading, picture‐naming, and word‐imitation tasks. Although all participants improved in perception and production, the lip hand gesture was more effective in adjusting lip aperture than the other two conditions in the paragraph‐reading and picture‐naming tasks. These results suggest that hand gestures encoding visible rather than nonvisible articulation features are more effective for improving second language pronunciation. A one‐page Accessible Summary of this article in nontechnical language is freely available in the Supporting Information online and at https://oasis‐database.org. [ABSTRACT FROM AUTHOR]
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- 2024
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30. Novel Simplified Practical Method for One‐Dimensional Large‐Strain Consolidation.
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Song, Ding‐Bao, Li, Peng‐Lin, Yin, Zhen‐Yu, and Yin, Jian‐Hua
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WATERLOGGING (Soils) , *ANALYTICAL solutions , *LEGAL settlement - Abstract
A new simplified practical method for one‐dimensional nonlinear large‐strain consolidation of saturated homogenous soils is proposed. The derivation processes of the proposed method are introduced first, with a modification of Terzaghi's theory from a novel perspective to solve large‐strain consolidation problems. Verification checks of the proposed method with other solutions are then conducted. The proposed method is different from Lekha's solution because Lekha's analytical solution is based on the small strain theory. For linear consolidation, the proposed method shows excellent agreement with the Consolidation Settlement 2 (CS2) model. For nonlinear large‐strain consolidation, the new method is in good agreement with the CS2 model when Cc/Ck ≤ 1. After that, optimization of the proposed nonlinear solution is carried out for Cc/Ck > 1 with a more precise average constant coefficient of consolidation used in the simplified practical method, and good agreement is obtained between the solutions from the proposed method and the CS2 model. Overall, the proposed simplified method provides practical, reliable, and efficient solutions for analyzing linear and nonlinear large‐strain consolidation. [ABSTRACT FROM AUTHOR]
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- 2024
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31. Biodegradable Ferroelectric Molecular Plastic Crystal HOCH2(CF2)7CH2OH Structurally Inspired by Polyvinylidene Fluoride.
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Ai, Yong, Gu, Zhu‐Xiao, Wang, Peng, Tang, Yuan‐Yuan, Chen, Xiao‐Gang, Lv, Hui‐Peng, Li, Peng‐Fei, Jiang, Qing, Xiong, Ren‐Gen, Zhang, Jun‐Jie, and Zhang, Han‐Yue
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- 2024
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32. SH2B1 Defends Against Energy Imbalance, Obesity, and Metabolic Disease via a Paraventricular Hypothalamus→Dorsal Raphe Nucleus Neurocircuit.
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Li, Yuan, Kim, Min‐Hyun, Jiang, Lin, Baron, Lorelei, Faulkner, Latrice D., Olson, David P., Li, Xingyu, Gannot, Noam, Li, Peng, and Rui, Liangyou
- Subjects
RAPHE nuclei ,METABOLIC disorders ,BRAIN-derived neurotrophic factor ,OBESITY ,TYPE 2 diabetes ,GLUCOSE intolerance - Abstract
SH2B1 mutations are associated with obesity, type 2 diabetes, and metabolic dysfunction‐associated steatotic liver disease (MASLD) in humans. Global deletion of Sh2b1 results in severe obesity, type 2 diabetes, and MASLD in mice. Neuron‐specific restoration of SH2B1 rescues the obesity phenotype of Sh2b1‐null mice, indicating that the brain is a main SH2B1 target. However, SH2B1 neurocircuits remain elusive. SH2B1‐expressing neurons in the paraventricular hypothalamus (PVHSH2B1) and a PVHSH2B1→dorsal raphe nucleus (DRN) neurocircuit are identified here. PVHSH2B1 axons monosynaptically innervate DRN neurons. Optogenetic stimulation of PVHSH2B1 axonal fibers in the DRN suppresses food intake. Chronic inhibition of PVHSH2B1 neurons causes obesity. In male and female mice, either embryonic‐onset or adult‐onset deletion of Sh2b1 in PVH neurons causes energy imbalance, obesity, insulin resistance, glucose intolerance, and MASLD. Ablation of Sh2b1 in the DRN‐projecting PVHSH2B1 subpopulation also causes energy imbalance, obesity, and metabolic disorders. Conversely, SH2B1 overexpression in either total or DRN‐projecting PVHSH2B1 neurons protects against diet‐induced obesity. SH2B1 binds to TrkB and enhances brain‐derived neurotrophic factor (BDNF) signaling. Ablation of Sh2b1 in PVHSH2B1 neurons induces BDNF resistance in the PVH, contributing to obesity. In conclusion, these results unveil a previously unrecognized PVHSH2B1→DRN neurocircuit through which SH2B1 defends against obesity by enhancing BDNF/TrkB signaling. [ABSTRACT FROM AUTHOR]
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- 2024
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33. Research Advances in Magnetic Field‐Assisted Photocatalysis.
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Li, Ru, Qiu, Li‐Peng, Cao, Shi‐Ze, Li, Zhi, Gao, Shi‐Long, Zhang, Jun, Ramakrishna, Seeram, and Long, Yun‐Ze
- Subjects
- *
LORENTZ force , *MAGNETIC field effects , *SPIN polarization , *HYPERFINE interactions , *MAGNETIC fields , *CARBON dioxide reduction - Abstract
Solar‐to‐chemical energy conversion thorugh photocatalytic technology has garnered significant attention due to its potential for clean hydrogen pro duction, pollutant degradation, and carbon dioxide reduction. However, its relatively low solar‐to‐chemical conversion efficiency hinders its industrial development. External fields have currently emerged as a supplementary energy source to augment the overall catalytic efficiency. Recently, the photocatalytic performance has been considerably enhanced through magnetic field modulation, which promotes the separation and transfer of photoexcited charge carriers. This article systematically reviews the recent research progress of magnetic field–assisted photocatalysis, discussing phenomena such as the negative magnetoresistance effect, Lorentz force, and spin polarization. It comprehensively analyzes the effect of magnetic fields on critical processes in photocatalysis: light absorption, charge‐carrier separation, and surface reactions. In particular, this review focuses on the spin‐relaxation mechanism, explains how the electron lifetime is extended through spin polarization, and proposes design strategies for spin‐polarized materials. Finally, this review discusses the challenges and potential opportunities for enhancing photocatalytic efficiency. The ultimate objective of this review is to offer notable theoretical and experimental insights that can guide the design and development of high‐performance photocatalysts and photocatalytic systems. [ABSTRACT FROM AUTHOR]
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- 2024
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34. Primate‐Specific DAZ Regulates Translation of Cell Proliferation‐Related mRNAs and is Essential for Maintenance of Spermatogonia.
- Author
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Ou, Ningjing, Wang, Yuci, Xu, Shuai, Luo, Jiaqiang, Zhang, Chenwang, Zhang, Yangyi, Shi, Xiaoyan, Xiong, Minggang, Zhao, Liangyu, Ji, Zhiyong, Zhang, Yuxiang, Zhao, Jingpeng, Bai, Haowei, Tian, Ruhui, Li, Peng, Zhi, Erlei, Huang, Yuhua, Chen, Wei, Wang, Ruiqi, and Jin, Yuxuan
- Subjects
RNA-binding proteins ,GENETIC translation ,Y chromosome ,PHASE transitions ,AZOOSPERMIA - Abstract
Primate‐specific DAZ (deleted in azoospermia) has evolved in the azoospermia factor c (AZFc) locus on the Y chromosome. Loss of DAZ is associated with azoospermia in patients with deletion of the AZFc region (AZFc_del). However, the molecular mechanisms of DAZ in spermatogenesis remain uncertain. In this study, the molecular mechanism of DAZ is identified, which is unknown since it is identified 40 years ago because of the lack of a suitable model. Using clinical samples and cell models, it is shown that DAZ plays an important role in spermatogenesis and that loss of DAZ is associated with defective proliferation of c‐KIT‐positive spermatogonia in patients with AZFc_del. Mechanistically, it is shown that knockdown of DAZ significantly downregulated global translation and subsequently decreased cell proliferation. Furthermore, DAZ interacted with PABPC1 via the DAZ repeat domain to regulate global translation. DAZ targeted mRNAs that are involved in cell proliferation and cell cycle phase transition. These findings indicate that DAZ is a master translational regulator and essential for the maintenance of spermatogonia. Loss of DAZ may result in defective proliferation of c‐KIT‐positive spermatogonia and spermatogenic failure. [ABSTRACT FROM AUTHOR]
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- 2024
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35. Correction to: Imaging Light‐Induced Migration of Dislocations in Halide Perovskites with 3D Nanoscale Strain Mapping.
- Author
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Orr, Kieran W. P., Diao, Jiecheng, Lintangpradipto, Muhammad Naufal, Batey, Darren J., Iqbal, Affan N., Kahmann, Simon, Frohna, Kyle, Dubajic, Milos, Zelewski, Szymon J., Dearle, Alice E., Selby, Thomas A., Li, Peng, Doherty, Tiarnan A. S., Hofmann, Stephan, Bakr, Osman M., Robinson, Ian K., and Stranks, Samuel D.
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- 2024
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36. N‐acyl homoserine lactone cell–cell diffusible signalling in the Ralstonia solanacearum species complex.
- Author
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Li, Peng, Bez, Cristina, Zhang, Yong, Deng, Yinyue, and Venturi, Vittorio
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- *
SOILBORNE plant pathogens , *BACTERIAL wilt diseases , *QUORUM sensing , *SIGNALS & signaling , *RALSTONIA solanacearum , *SPECIES - Abstract
Ralstonia solanacearum species complex (RSSC) includes soilborne bacterial plant pathogens with worldwide distribution and wide host ranges. Virulence factors are regulated via four hierarchically organized cell–cell contact independent quorum‐sensing (QS) signalling systems: the Phc, which uses as signals (R)‐methyl 3‐hydroxypalmitate [(R)‐3‐OH PAME] or (R)‐methyl 3‐hydroxymyristate [(R)‐3‐OH MAME], the N‐acyl homoserine lactone (AHL)‐dependent RasI/R and SolI/R systems, and the recently identified anthranilic acid‐dependent system. The unique Phc QS system has been extensively studied; however, the role of the two AHL QS systems has only recently been addressed. In this microreview, we present and discuss current data of the SolI/R and RasI/R QS systems in the RSSC. We also present the distribution and frequency of these AHL QS systems in the RSSC, discuss possible ecological roles and evolutive implications. The complex QS hierarchical networks emphasizes the crucial role of cell–cell signalling in the virulence of the RSSC. [ABSTRACT FROM AUTHOR]
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- 2024
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37. Modulating the Electrolyte Microenvironment in Electrical Double Layer for Boosting Electrocatalytic Nitrate Reduction to Ammonia.
- Author
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Wen, Weidong, Fang, Shidong, Zhou, Yitong, Zhao, Ying, Li, Peng, and Yu, Xin‐Yao
- Subjects
SUSTAINABILITY ,CHEMICAL kinetics ,DENITRIFICATION ,ELECTROLYTIC reduction ,COPPER catalysts ,NICKEL phosphide - Abstract
Electrochemical nitrate reduction reaction (NO3RR) is a promising approach to achieve remediation of nitrate‐polluted wastewater and sustainable production of ammonia. However, it is still restricted by the low activity, selectivity and Faraday efficiency for ammonia synthesis. Herein, we propose an effective strategy to modulate the electrolyte microenvironment in electrical double layer (EDL) by mediating alkali metal cations in the electrolyte to enhance the NO3RR performance. Taking bulk Cu as a model catalyst, the experimental study reveals that the NO3−‐to‐NH3 performance in different electrolytes follows the trend Li+
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- 2024
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38. Suppressed Dissolution of Fluorine‐Rich SEI Enables Highly Reversible Zinc Metal Anode for Stable Aqueous Zinc‐Ion Batteries.
- Author
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Zhang, Yanan, Shen, Shenyu, Xi, Kai, Li, Peng, Kang, Zihan, Zhao, Jianyun, Yin, Dandan, Su, Yaqiong, Zhao, Hongyang, He, Guanjie, and Ding, Shujiang
- Subjects
SOLID electrolytes ,HYDROGEN evolution reactions ,ENERGY storage ,ANODES ,ELECTROLYTES - Abstract
The instability of the solid electrolyte interface (SEI) is a critical challenge for the zinc metal anodes, leading to an erratic electrode/electrolyte interface and hydrogen evolution reaction (HER), ultimately resulting in anode failure. This study uncovers that the fluorine species dissolution is the root cause of SEI instability. To effectively suppress the F− dissolution, an introduction of a low‐polarity molecule, 1,4‐thioxane (TX), is proposed, which reinforces the stability of the fluorine‐rich SEI. Moreover, the TX molecule has a strong affinity for coordinating with Zn2+ and adsorbing at the electrode/electrolyte interface, thereby diminishing the activity of local water and consequently impeding SEI dissolution. The robust fluorine‐rich SEI layer promotes the high durability of the zinc anode in repeated plating/stripping cycles, while concurrently suppressing HER and enhancing Coulombic efficiency. Notably, the symmetric cell with TX demonstrates exceptional electrochemical performance, sustaining over 500 hours at 20 mA cm−2 with 10 mAh cm−2. Furthermore, the Zn||KVOH full cell exhibits excellent capacity retention, averaging 6.8 mAh cm−2 with 98 % retention after 400 cycles, even at high loading with a lean electrolyte. This work offers a novel perspective on SEI dissolution as a key factor in anode failure, providing valuable insights for the electrolyte design in energy storage devices. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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39. Azimuthal Scanning Excitation Surface Plasmon Resonance Holographic Microscopy.
- Author
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Zhang, Jiwei, Wang, Shuqi, Li, Wenrui, Luo, Xiangyuan, Wang, Lingke, Mi, Jingyu, Dou, Jiazhen, Dai, Siqing, Lu, Fanfan, Li, Peng, and Zhao, Jianlin
- Subjects
SURFACE plasmon resonance ,HIGH resolution imaging ,MATERIALS science ,NANOPARTICLES ,SURFACE chemistry - Abstract
Surface plasmon resonance (SPR) holographic microscopy exploits surface plasmon wave as illumination and acquires both SPR intensity and phase images. It detects extremely tiny variations of weakly interacting objects owing to high sensitivity and has been applied in cell biology, material science, surface chemistry, etc. However, it is very challenging to solve the problem of poor spatial resolution due to the transverse propagation of surface plasmon wave. In this paper, an azimuthal scanning excitation method is proposed in SPR holographic microscopy to improve the spatial resolution by engineering the Fourier spectra of SPR images from dual‐arc to circular shape. The study modulates the light field with spatial position, wavevector, and polarization to realize azimuthal scanning excitation of SPR. Systematic experiments of dielectric spheres, nanowires, two‐dimension materials, and complex nanostructure are conducted to show the resolution improvement with one order of magnitude, the higher detection sensitivity of SPR phase than that of SPR intensity, and the necessities of both of high‐resolution SPR intensity and phase images to retrieve sample information in certain scenarios. Benefiting from the high detection sensitivity and spatial resolution, the proposed microscopy will find wide applications in nanoparticle analysis, low‐dimensional material characterization, and imaging extremely thin or transparent samples. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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40. LTBP2 Knockdown Ameliorates Cardiac Fibrosis and Apoptosis via Attenuating NF‐κB Signaling Pathway and Oxidative Stress in Mice with Cardiac Hypertrophy.
- Author
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Wang, Yifeng, Hua, Dongxu, Zhao, Kun, Xie, Qiyang, Wu, Xiaoguang, Gao, Min, Huang, Wanling, Huang, Wen, Li, Peng, and Sheng, Yanhui
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- 2024
- Full Text
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41. Coronary heart disease increases the risk of perioperative ischemic stroke after noncardiac surgery: A retrospective cohort study.
- Author
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Wang, Rui, Wang, Han, Liu, Siyuan, Yang, Lujia, Ma, Libin, Liu, Fengjin, Li, Yingfu, Li, Peng, Shi, Yizheng, Sun, Miao, Song, Yuxiang, Hou, Wugang, Mi, Weidong, and Ma, Yulong
- Subjects
ISCHEMIC stroke ,PROPENSITY score matching ,LOGISTIC regression analysis ,CORONARY disease ,ODDS ratio - Abstract
Objective: To investigate the association between coronary heart disease (CHD) and the risk of perioperative ischemic stroke in patients undergoing noncardiac surgery. Methods: This retrospective study evaluated the incidence of ischemic stroke within 30 days after a noncardiac surgery. A cohort of 221,541 patients who underwent noncardiac surgery between January 2008 and August 2019 was segregated according to whether they were diagnosed with CHD. Primary, sensitivity, and subgroup logistic regression analyses were conducted to confirm that CHD is an independent risk factor for perioperative ischemic stroke. Propensity score matching analysis was used to account for the potential residual confounding effect of covariates. Results: Among the 221,541 included patients undergoing noncardiac surgery, 484 patients (0.22%) experienced perioperative ischemic stroke. The risk of perioperative ischemic stroke was higher in patients with CHD (0.7%) compared to patients without CHD (0.2%), and multivariate logistic regression analysis showed that CHD was associated with a significantly increased risk of perioperative ischemic stroke (odds ratio (OR), 3.7943; 95% confidence interval (CI) 2.865–4.934; p < 0.001). In a subset of patients selected by propensity score matching (PSM) in which all covariates between the two groups were well balanced, the association between CHD and increased risk of perioperative ischemic stroke remained significantly significant (OR 1.8150; 95% CI, 1.254–2.619; p = 0.001). In the subgroup analysis stratified by age, preoperative β‐blockers, and fibrinogen‐to‐albumin ratio (FAR), the association between CHD and perioperative ischemic stroke was stable (p for interaction >0.05). Subgroup analyses also showed that CHD was significantly increased the risk of perioperative ischemic stroke in the preoperative mean arterial pressure (MAP) ≥94.2 mmHg subgroups (p for interaction <0.001). Conclusion: CHD is significantly associated with an increased risk of perioperative ischemic stroke and is an independent risk factor for perioperative ischemic stroke after noncardiac surgery. Strict control of preoperative blood pressure may reduce the risk of perioperative ischemic stroke for patients with CHD undergoing noncardiac surgery. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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42. Dipole Moment Influences the Reversibility and Corrosion of Lithium Metal Anodes.
- Author
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Li, Peng‐Cheng, Zhang, Zhi‐Qing, Zhao, Zi‐Wei, Li, Jing‐Qiao, Xu, Zhi‐Xiao, Zhang, Hao, and Li, Ge
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- 2024
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43. Self‐Assembly of Silicon Nanotubes Driven by a Biphasic Transition from the Natural Mineral Montmorillonite in Molten Salt Electrolysis.
- Author
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Wang, Fan, Liu, Wei, Li, Peng, Guan, Ziheng, Li, Wei, and Wang, Dihua
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- 2024
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44. Bioinspired Superhydrophobic Cellular Origami Exhibiting Improved and Multifunctional Floatability.
- Author
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Bai, Haoyu, Li, Peng, Wang, Xinsheng, Li, Zhe, Zhao, Tianhong, Tian, Yaru, Cheng, Mingren, Hong, Yiqian, Zhu, Xuanbo, and Cao, Moyuan
- Subjects
- *
ORIGAMI , *SUPERHYDROPHOBIC surfaces , *SOLAR system , *BUOYANCY , *CATALYSIS - Abstract
Interfacial floater possessing an open surface diversifies the functions of current systems in the field of solar evaporation, micro‐detector, multiphase catalysis, etc. However, most of the current floaters still face challenges such as the anti‐submersion, orientation adjusting, and multifunctional capabilities. Drawing inspiration from water striders and diving bell spiders, here a superhydrophobic cellular origami (SCO) is proposed with reliable stability, submerge resistance, switchable floatability, and multifunctional integration. The remarkable floating ability is achieved through the air storage ability of superhydrophobic air cells. SCO floats stably on the water surface and has a maximum load capacity that is 48% higher than the superhydrophobic sheet. Besides, SCO can resurface rapidly after complete submersion, even using titanium metal as substrate. To further enhance the universality of SCO, the Janus SCO with unbalanced structure can float with a specific orientation facing up and the origami structure is optimized to be switchable with hinge structure for adjustable buoyancy. To prove the concept in 3D structure, a cylindrical SCO is presented for cable locating on the water surface. This study presents an achievable strategy to extend superhydrophobic surfaces into anti‐sinking floaters, offering valuable insights into the development of multifunctional interface carriers. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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- View/download PDF
45. Dynamic mechanism of check dams on evolution of river corridors based on UAV telemetry combined with numerical simulations.
- Author
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Zhou, Shixuan, Li, Peng, Feng, Yangfan, and Guo, Jiajia
- Subjects
DAMS ,SEDIMENTATION & deposition ,SOIL conservation ,TELEMETRY ,WATER conservation - Abstract
Check dams are a critical soil and water conservation engineering measure in gullies that significantly influence erosion, transportation, and sediment accumulation. Check dams help reduce erosion in the upstream area, ignoring the off‐site erosion reduction capacity due to erosion dynamics, and it also alters the morphology of gullies. The morphology of the gully cross‐section from the head to the inlet of the gully is mainly "V" shaped, "V, U," transitional shaped, "U" shaped and trapezoidal shaped. The construction of check dams can force the geomorphologic evolution of the sub‐watershed to accelerate the transition to "old age" and reduce the allocation of sediment initiation during field sub‐flooding, thus promoting sediment deposition processes. The percentage of downstream scour hours in watersheds where check dams were constructed was 0.65% and 0.80%, respectively, compared to 19.78% and 19.06% in watersheds where there are no check dams. The results reveal the role check dam constructions play in gully morphology evolution from a hydrodynamic perspective and fill the gaps in off‐site erosion reduction, providing theoretical support for assessing the role of check dams in soil and water conservation work. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
46. Infection Microenvironment‐Responsive Coating on Titanium Surfaces for On‐Demand Release of Therapeutic Gas and Antibiotic.
- Author
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Wang, Kun, Rong, Fan, Peng, Haowei, Yuan, Zhang, Huo, Jingjing, Liu, Pengxiang, Ding, Rui, Yan, Cuiping, Liu, Guming, Wang, Tengjiao, and Li, Peng
- Published
- 2024
- Full Text
- View/download PDF
47. Enhancement of Perpendicular Magnetic Anisotropy in Tm3Fe5O12(111) Epitaxial Films via Synergistic Stoichiometry and Strain Engineering.
- Author
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Liang, Zhengguo, Lu, Jingdi, Yang, Shuo, Fang, Zheng, Yan, Yifei, Wang, Qing, Li, Peng, Fan, Minghui, and Wang, Lingfei
- Subjects
PERPENDICULAR magnetic anisotropy ,STOICHIOMETRY ,PULSED laser deposition ,MAGNETIC properties ,MAGNETIC control ,MAGNETOSTRICTION - Abstract
Establishing a reliable control of perpendicular magnetic anisotropy (PMA) is challenging but essential for the full utilization of rare‐earth iron garnets in spintronic devices. In this study, a feasible approach to enhance the PMA of ferrimagnetic thulium iron garnet (TmIG) films is presented. This approach involves precise adjustments in cation stoichiometry and epitaxial strain state. By fine‐tuning the pre‐ablation process and oxygen partial pressure during pulsed laser deposition, a series of high‐quality TmIG films can grow with variable cation stoichiometry, i.e., the Tm/Fe molar ratio. The finding reveals that cation stoichiometry plays a crucial role in determining the magnetic properties of the TmIG films. Particularly, the stoichiometric TmIG film has the strongest PMA due to the maximized magnetostriction coefficient. Combining this stoichiometry optimization and strain engineering, an unprecedented PMA strength of ≈30 kJ m−3 for TmIG is achieved. This achievement demonstrates a simple and effective method for harnessing the magnetic properties of rare‐earth iron garnet films, paving the way for their advanced applications in next‐generation spintronic devices. [ABSTRACT FROM AUTHOR]
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- 2024
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48. In‐Situ Derived Defective Ru Particles Anchored on Ru–Ni Layered Double Hydroxides for Enhanced Alkaline Hydrogen Evolution.
- Author
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Shi, Ningning, Ma, Ruijie, Lin, Linghui, Xie, Wangjing, Liu, Panpan, Li, Peng, Fan, Hua, Tang, Yu, Wang, Yuanqing, Lin, Sen, and Huang, Xing
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- 2024
- Full Text
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49. Evolution of the Leader Discharge in Bi‐Directional Propagation System in Altitude‐Triggered Lightning.
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Li, Xiao, Li, Peng, Cao, Baofeng, Li, Xiaoqiang, Lu, Gaopeng, Chang, Yunfen, Zhang, Xiong, Wei, Yongli, Li, Zongxiang, Zhang, Yang, and Lyu, Weitao
- Subjects
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MAGNETIC field measurements , *MAGNETIC declination , *MAGNETIC measurements , *OPTICAL images , *MAGNETIC fields - Abstract
On 18 June 2023, comprehensive observations were conducted to an altitude‐triggered lightning flash. Upward positive leader (UPL) and downward negative leader (DNL) in a bi‐directional development system were detected simultaneously by a high‐speed camera, together with the coordinated measurements of magnetic field and very‐high‐frequency (VHF) emissions. High‐speed images reveal, for the first time, the enhancement of the UPL's propagation speed by DNL in the bi‐directional leader system. Concretely, the upward positive leader initially originates from a suspended wire tip and propagates at a two dimensional (2D) speed of 5.32 × 104 m/s, and after about 6.3 ms, its propagation speed was enhanced to 1.12 × 105 m/s when the stepped DNL started advancing at an average speed of 1.44 × 105 m/s. Additionally, based on the evolution of channel luminosity and the variations of magnetic radiation, it is found that there is a consistency in luminosity variation between the ascending channel and the descending channel in the bi‐directional leader system, and the amplitude of the magnetic field increases when the negative discharges start at the bottom wire end with intensive VHF emissions. Those facts indicate that the DNL has an effect, may be a positive one, on the UPL's development in the early stage of altitude‐triggered lightning. Plain Language Summary: The proposal and verification of the bi‐directional leader development shed light on the understanding of lightning initiation and extension. However, the study on the initiation and propagation of bi‐directional leader is limited as a result of the destitution of close and detailed observations due to its random occurrence time and position. Therefore, the comprehensive observation on the discharges in the initial stage of the altitude‐triggered lightning through simultaneous optical images, and magnetic field and very‐high‐frequency emissions measurements at close range is of great value for distinctly clarifying the evolution of the bi‐directional leader's propagation manner and the associated electromagnetic radiation. In this paper, we analyzed the initiation process and propagation manner of the bi‐directional leader in an altitude‐triggered lightning flash using high‐speed imaging and concurrent measurements of the associated magnetic radiation. It aims to understand the initiation and propagation process of the bi‐directional leader and revealing the evolution of discharges in the early stage of the altitude‐triggered lightning. Key Points: Bi‐directional leader's initiation and propagation in altitude‐triggered lightning was documented by coordinated observationsPropagation speed of upward positive leader (UPL) is enhanced as fast as the DNL's propagation in the bi‐directional leader systemDownward negative leader has a possible positive effect on the UPL's development in the early stage of altitude‐triggered lightning [ABSTRACT FROM AUTHOR]
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- 2024
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50. High body mass index is associated with elevated risk of perioperative ischemic stroke in patients who underwent noncardiac surgery: A retrospective cohort study.
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Li, Peng, Wang, Rui, Liu, Fengjin, Ma, Libin, Yang, Huikai, Qu, Mengyao, Liu, Siyuan, Sun, Miao, Liu, Min, Ma, Yulong, and Mi, Weidong
- Abstract
Background: Body mass index (BMI) serves as a global metric for assessing obesity and overall health status. However, the impact of BMI, treated as a continuous variable, on the risk of perioperative stroke remains poorly understood. This retrospective cohort study aimed to elucidate the association between BMI and the risk of perioperative ischemic stroke in patients undergoing non‐cardiovascular surgery. Methods: A cohort of 223,415 patients undergoing noncardiac surgery at the First Medical Center of Chinese PLA General Hospital between January 1, 2008 and August 31, 2019 was screened. Preoperative high BMI, defined as BMI >22.64 kg/m2, was the primary exposure, and the outcome of interest was the new diagnosis of perioperative ischemic stroke within 30 days post‐surgery. Robust controls for patient and intraoperative factors were implemented to minimize residual confounding. Logistic regression and propensity score matching were employed, and patients were stratified into subgroups for further investigation. Results: The overall incidence of perioperative ischemic stroke was 0.23% (n = 525) in the cohort. After adjusting for patient‐related variables (OR 1.283; 95% CI, 1.04–1.594; p < 0.05), surgery‐related variables (OR 1.484; 95% CI, 1.2–1.849; p < 0.001), and all confounding variables (OR 1.279; 95% CI, 1.025–1.607; p < 0.05), patients with BMI >22.64 kg/m2 exhibited a significantly increased risk of perioperative ischemic stroke. This association persisted in the propensity score matched cohort (OR 1.577; 95% CI, 1.203–2.073; p < 0.01). Subgroup analyses indicated that preoperative BMI >22.64 kg/m2 correlated with an elevated risk of perioperative ischemic stroke in female patients, those with coronary heart disease, peripheral vascular diseases, and individuals undergoing neurosurgery. Conclusion: We first identified BMI >22.64 kg/m2 as a substantial and independent risk factor for perioperative ischemic stroke in Chinese noncardiac surgery patients. Normal BMI may not suffice as a universal preventive standard. Instead, a more stringent perioperative weight management approach is recommended, particularly for specific subgroups such as female patients, those with coronary heart disease and peripheral vascular disease, and individuals scheduled for neurosurgery. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
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