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“双碳”目标和能源转型的大背景下，区域综合能源系统内部耦合关系不断丰富，对于碳排放的管理不断严格，考虑互联协同的分布式能源站低碳规划问题亟待解决。为此，首先讨论了互联协同分布式能源站空间性能参数矩阵；然后计及负荷-能源站的管线建设以及环境成本、能源站-能源站的互联管线长度、各个分布式能源站规划容量等关键因素，提出了一种考虑互联协同的分布式能源站低碳多目标选址规划模型；最后，讨论了负荷不确定性对分布式能源站选址规划的影响，并且基于基准负荷确定性场景，在某城市实际算例中验证并讨论了考虑低碳需求前后各个分布式能源站的选址结果对比。

为贯彻落实碳达峰碳中和（简称“双碳”）目标，促进低碳产业发展，国家采取一系列碳减排政策推动能源系统低碳转型。构建了考虑碳减排收益的电-热耦合系统低碳扩展规划模型，同时考虑到系统中具有的大量源-荷不确定性，基于信息间隙决策理论（information gap decision theory，IGDT）构建鲁棒低碳规划模型与机会低碳规划模型。采用IEEE-13节点配网和32节点热网组成的能源系统测试算例对模型进行对比验证，分析了鲁棒模型的风险规避特点以及机会模型的寻求收益特点，验证了IGDT方法在不确定信息并不充足时仍然能够量化不确定性，且能根据规划决策者不同的风险偏好在预期的投资成本范围内求得相应的最优规划结果。同时，对比了碳减排收益对两种低碳规划模型的影响，分析了两种模型的不确定性与碳减排收益的关系。最后，分析了储能配置对低碳规划的影响。算例结果证明了储能配置可有效降低两类规划模型的投资成本，即储能投资对规划决策者的风险偏好选择不敏感。

随着外科技术的不断改进、医学工程学与材料学的发展，复合带瓣血管的根部置换术（Bentall手术）成为了主动脉根部病变的标准术式。作为Bentall手术的替代手段，保留主动脉瓣的根部替换术术后避免了终身抗凝和机械瓣膜的相关并发症，降低了血栓栓塞、出血事件的发生率，其有利的血流动力学和潜在更低的心内膜炎风险，保证了术后持久的主动脉瓣功能，患者的生存质量大大提高。本文综述了保留主动脉瓣的根部替换术的适应症、标准化技术要点及其在不同患者中应用的远期结果。

目的 探讨应用支架样取栓装置对前循环大动脉闭塞所致急性缺血性卒中患者机械取栓治疗的临 床效果。 方法 连续纳入采用支架样取栓装置治疗的前循环急性颅内大动脉近端闭塞患者。分析纳入患 者的临床特征、影像学资料、治疗及术后90 d临床随访结果。以术后90 d改良Rankin量表（modified Rankin Scale，mRS）评分为主要指标评估治疗有效性，以症状性颅内出血率、术后90 d死亡率评估治疗 的安全性。 结果 共纳入30例患者，29例应用Solitaire，1例应用Trevo。平均年龄（65.97±11.67）岁。入院时美国 国立卫生研究院卒中量表(National Institutes of Health Stroke Scale，NIHSS)评分中位数13.50（9.75， 18.00）。包括颈内动脉闭塞9例，大脑中动脉M1段闭塞20例，大脑前动脉A1段闭塞1例。术后90 d随访， 56.7%（17/30）患者预后良好（mRS评分0～2分）。术后发生症状性颅内出血率13.3%（4/30），术后 90 d死亡率20%（6/30）。 结论 支架样取栓装置在前循环大动脉闭塞性急性缺血性卒中取栓治疗中临床效果较好，其有效 性、安全性能够在真实世界中得到体现，是治疗急性颅内大动脉闭塞的有效方法。 Abstract: Objective To investigate the clinical effect of stent-like retrievers for mechanical thrombectomy in ischemic stroke patients due to large vessel occlusion. Methods Patients treated with stent-like retrievers for mechanical thrombectomy caused by proximal arterial occlusion in anterior cerebral circulation were enrolled consecutively. Their clinical features, imaging data, treatments and the results of 90-day follow up were analyzed. The major efficacy measure was assessed with modified Rankin Scale (mRS) at 90 days after onset. The safety measures were assessed with symptomatic intracranial hemorrhage (sICH) and mortality at 90 days. Results Of the 30 enrolled patients, 29 were treated with Solitaire and 1 with Trevo. The mean age was (65.97±11.67) years old, and median baseline National Institutes of Health Stroke Scale (NIHSS) score was 13.50 (9.75, 18.00). Nine of them had internal carotid artery occlusion, 20 had the M1 segment of the middle cerebral artery occlusion and 1 had the A1 segment of the anterior cerebral artery occlusion. The proportion of favorable functional outcome (mRS 0-2 at 90 days) was 56.7% (17/30). sICH rate was 13.3% (4/30), and the mortality at 90 days was 20% (6/30). Conclusion The effect of stent-like retrievers for mechanical thrombectomy in ischemic stroke patients due to anterior cerebral circulation large vessel occlusion is relatively good. Its efficacy and safety can be reflected in the real world, and it is an effective method for the treatment of acute intracranial artery occlusion.

在桁框结构的桁架跨中设置空腹式消能段是一种延性桁框结构。针对该结构体系,首先推导了消能段的极限抗剪承载力,然后提出了桁框结构的简化计算模型,并根据我国抗震设计准则给出了确定消能段长度的计算方法和构造要求。采用此方法确定的消能段可以精确控制延性桁框结构的屈服时刻和破坏模式,并实现水平地震作用下各楼层同步屈服,充分耗能。最后采用有限元方法进行了单向和循环加载分析与验证,结果表明:合理的消能段长度可以显著提高延性桁框结构的延性、耗能能力、承载能力和安全储备,使其抗震性能明显优于普通桁框结构。提供的计算方法具有较高的精度,可以在确保消能段耗能的前提下实现结构的优化设计。

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Copyright of Journal of Soil & Water Conservation (1009-2242) is the property of Institute of Soil & Water Conservation and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Soil & Water Conservation (1009-2242) is the property of Institute of Soil & Water Conservation and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Electric Power is the property of Electric Power Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Objective To analyse the current situation and trends of wasting and overweight obesity among Han Chinese college students from 2000 to 2019, and to provide a basis for the prevention of wasting and overweight obesity among college students. Methods The body mass index data of 72 983 Han Chinese college students were selected from five national surveys on studentsJ physical fitness and health from 2000 to 2019, and the "height - standard weight method" used in the 1985 national survey on physical fitness and health was used to screen for emaciation and overweight - obesity, and the detection rate, increase and annual growth rate of emaciation and overweight - obesity were calculated for college students by gender and age. The detection rate, increase rate and annual growth rate of college students were calculated by gender and age. Statistical analyses were performed using one 一 way ANOVA, sample 一 weighted linear regression, \ test and2 trend test. Results From 2000 to 2019, the BMI of Chinese Han college students all showed a continuous increasing trend, with different growth rates for male and female students in each age group (except for the female group, the P 一 trend value for male students in each age group was < 0. 05). Both male and female students' wasting detection rates showed a decreasing trend from 2014 - 2019. From 2000 to 2019, the overweight and obesity rate of Chinese Han college students continued to increase, and the overweight and obesity rate of male students was higher than that of female students. From 2000 to 2019, the wasting of Chinese Han college students aged 19 to 22 years old The annual growth rate of overweight and obesity of male students has been decreasing, and the annual growth rate of overweight and obesity of male students has been increasing, and the difference in the increase of the annual growth rate of overweight and obesity of male students in each age group is relatively small. 2010 -2019, the annual growth rate of overweight and obesity of female students began to increase gradually, and the increase was the largest in 2014 一 2019, and the increase was the most obvious The largest increase in the annual growth rate of overweight obesity among female students was observed in the age group of 22 years. Conclusion At 2019, the trend of the growth of college students'wasting rate has been alleviated, but the ovenveight and obesity rate is in a continuous growth trend, the relevant government departments should formulate targeted physical health policies to prevent and alleviate the problem of college students' overweight and obesity. [ABSTRACT FROM AUTHOR]

Copyright of Machine Tool & Hydraulics is the property of Guangzhou Mechanical Engineering Research Institute (GMERI) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In-situ returning carbonization can directly convert the straw into biochar in the field. It is of great significance to improve the soil structure and soil fertility. The costs of collection, storage, and transportation can be reduced to solve the slow decomposition, low emergence rate, as well as serious pests and diseases in straw directly returning to the field. Previous research focused mainly on carbonization returning equipment. It is still lacking in the reactor section in large-scale production, uneven carbonization, operational stability, and production efficiency in the current equipment of carbonization returning. This article aims to develop multi-chamber equipment for corn straw in-situ returning carbonization, according to the precise oxygen and temperature control carbonization. A precise structure of air distribution was adopted to innovate a vertical multi chamber in the limited area of the carbonization reactor using the early prototype. The spiral disturbance component was designed to enhance the directional flow of materials. ANSYS software was used to simulate the structural optimization. The heat-transfer properties of metal were used to develop a clean combustion system for pyrolysis gas, together with a high-temperature flue gas heat exchange and reuse. In addition, the systems were further integrated, such as picking and crushing, silo conveying, continuous carbonization, flue gas cleaning and reuse, as well as the control. The vertical multi-chamber equipment was innovatively designed for the corn straw in-situ returning carbonization. A 20 kW/h generator was equipped to provide the energy consumption for all motors, in order to meet the needs of field work. The continuous transportation and carbonization of materials were achieved in the carbonization reactor. The high-temperature flue gas reuse was improved to reduce the equipment energy consumption for high carbonization and operational efficiency. In addition, a carbonization experiment was conducted using corn straw as the raw material. The equipment was also operated for one hour to collect the produced biochar and flue gas. The results show that the capacity of straw processing was 500 kg/h, the biochar yield was 125 kg/h, the fixed carbon content was 50.30%, and the system energy utilization rate was 70.66%. Industrial and elemental analysis of the biochar showed that the total carbon content reached 61.32%, whereas, the metal contents of Cu, Zn, and Pb were lower than those in the standard range of DB21/T 3314-2020. The biochar fully met the first-class standard of biochar returning. The concentrations of particulate matter, NOx, and SOx substances in the combustion smoke were 16%, 164.2%, and 32.6%, respectively, which were lower than the concentration standards for various substances in GB 13271-2014. And simulation analysis was conducted on the disturbed components, where the received stress was far less than the yield limit of the material. The maximum deformation was ignored relative to the overall size, where the structure and material of the disturbed components fully met the design requirements. The entire system operated stably, fully meeting the design standards, indicating environmentally friendly and pollution-free carbonization and returning to the field. This finding can provide theoretical, technical, and equipment support to the direct carbonization and return of straw to the field. [ABSTRACT FROM AUTHOR]

Objective To explore the protective mechanism of treadmill exercise on ovariectomized osteoporosis rats through Hedgehog-Gli signaling pathway. Methods 50 female SD rats were randomly divided into sham operation group (S, 15) and model group (Z, 35). The sham group removed only a small amount of fat around the ovaries, while the model group removed both ovaries. The model was verified by hematoxylin-eosin staining 10 weeks after operation. The successful rats were randomly divided into model group (M), positive control group (P) and treadmill exercise group (E), with 10 rats in each group. Group P was given 0.184 mg/(kg d) estradiol valerate suspension, while the other groups were given the same dose of normal saline once a day. Group E was also given moderate-intensity treadmill training for 30min minutes, five days a week. After 12 weeks of intervention, blood samples were collected, and the serum levels of procollagen type I N-terminal peptide (PINP), tartrate-resistant acid phosphatase (TRACP), collagen type I cross-linked C- terminal peptide (CTX) and osteocalcin (OC) were detected. Bone mineral density was detected by Micro-CT, bone mechanical properties were detected by material machine, and the expression of Shh, Ptc, Smo and Gli proteins in femur were detected by Western blot. Results Compared with S group, the indexes of bone formation and metabolism, bone mineral density, bone mechanical properties and the expressions of Shh, Ptc, Smo and Gli in femur in group M decreased (P<0.01). Compared with M group, the indexes of bone formation and metabolism, bone mineral density, bone mechanical properties and the expressions of Shh, Ptc, Smo and Gli in f femur in group M decreased (P<0.01). Compared with P group, the expressions of Shh, Ptc, Smo and Gli in femur in group E were higher (P<0.05). Conclusion12 weeks treadmill exercise may mediate the regulation of bone metabolism in ovariectomized rats by up-regulating the expressions of Shh, Ptc, Smo and Gli, and improve osteoporosis. [ABSTRACT FROM AUTHOR]

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Copyright of Metal Working (1674-165X) is the property of Metal Working Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Water Conservancy Science & Techonlogy & Economy is the property of Water Conservancy Science & Technology & Economy Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Aim To explore the correlation of serum angiopoietin-1 (Ang-1) and human cartilage glycoprotein-39 (YKL-40) levels with coagulation function and inflammatory response in patients with Kawasaki􀆳s disease (KD) complicated with coronary artery lesion (CAL). Methods From January 2018 to December 2022, 90 children with KD were selected as the study subjects, and 90 healthy children who were examined in this hospital during the same period were selected as the control group. According to whether CAL was combined, they were divided into non-CAL group (69 cases) and CAL group (21 cases), the levels of serum Ang-1, YKL-40, coagulation function, and inflammatory factors were compared between the two groups. Pearson analysis was used to investigate the relationship between serum Ang-1, YKL-40 levels and coagulation function, inflammatory reaction indicators in children with KD combined with CAL. Multivariate Logistic regression analysis was used to identify the factors affecting CAL in children with KD. Results There were significant differences in serum Ang-1 and YKL-40 levels among the control group, the non-CAL group and the CAL group (all P<0. 05). With the increase of the severity of the disease, the serum Ang-1 level in the control group, the non-CAL group and the CAL group decreased gradually, and the YKL-40 level increased gradually (all P<0. 05). Serum Ang-1 was negatively correlated with fibrinogen (FIB), C-reactive protein (CRP), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and white blood cell count (WBC) (all P<0. 05), YKL-40 was positively correlated with FIB, CRP, TNF-α, IL-6 and WBC (all P<0. 05). Multivariate Logistic regression analysis showed that YKL-40 was a risk factor for CAL in children with KD, and Ang-1 was a protective factor (P<0. 05). Conclusion The level of serum Ang-1 decreased and the level of YKL-40 increased in children with KD complicated with CAL, which was correlated with coagulation function and inflammatory response. [ABSTRACT FROM AUTHOR]

Aiming at the problems of inaccurate semantic segmentation results and rough saliency maps of indoor scene images, this paper proposed a network architecture (feature regulator and dual-path guidance, FG-Net) based on multi-modal feature optimization extraction and dual-path guided decoding. Specifically, the feature regulator sequentially performed noise filtering, re-weighted representation, differential complementation and interactive fusion on the multi-modal features at each stage, and optimized multi-modal feature representation in the feature extraction process by strengthening RGB and depth feature aggregation. Then, the dual-path guidance component introduced rich cross-modal cues after feature interactive fusion in the decoding stage to further take advantage of multi-modal features. The dual-path cooperative guidance structure outputted a more detailed saliency map by integrating multi-scale and multi-level feature information in the decoding stage. This paper conducted experiments on the public datasets NYUD-v2 and SUN RGB-D, and achieved 48.5% in the main evaluation metric mIoU, which is better than other state-of-the-art algorithms. The results show that the algorithm achieves more refined semantic segmentation of indoor scene images, and has good generalization and robustness. [ABSTRACT FROM AUTHOR]

At present, there are almost no reports on vehicle scheduling methods for three-dimensional rail transit system, and the real-time performance of existing vehicle scheduling algorithms is poor. Aiming at the scheduling problem of three-dimensional rail transit vehicles, this paper studied an order allocation algorithm combining high and low frequency station judgment and a Dijkstra path planning algorithm combining time window, namely intelligent scheduling algorithms, to improve the operating efficiency of vehicles. Firstly, it used the order allocation algorithm to select the appropriate execution vehicle for the order to reduce the waiting time of passengers. Secondly, it added the judgment of high and low frequency stations on the basis of the order allocation algorithm, and scheduled vehicles to the high frequency stations in advance to ensure the balance of supply and demand. Then, it combined the ordinary Dijkstra algorithm and time window judgment to realize multi-vehicle conflict-free path planning. Finally, it redeveloped the OpenTCS software and simulated the scheduling algorithm with the software. The results show that the average waiting time of the passenger from calling the vehicles is 8.043 s only using the order allocation algorithm. After the advance scheduling of vehicles combined with high and low frequency stations, the average waiting time is reduced to 5.724 s, and the waiting time of each passenger is reduced by 2.319 s. During the path planning, both the ordinary Dijkstra algorithm and the Dijkstra algorithm combined with time window took less than 1 ms to plan. However, the Dijkstra algorithm combined with time window only increases the time about 0.1 ms, and solves the problems of the vehicle path conflicts. The studied intelligent scheduling algorithm can reduce the waiting time of the passengers and improve the running efficiency of vehicles. The algorithm has good real-time performance and can meet the scheduling requirements of three-dimensional rail transit vehicles. [ABSTRACT FROM AUTHOR]

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