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132 results on '"Huang, Yingwei"'

20. Fabrication and characterization of complex coacervates utilizing gelatin and carboxymethyl starch.

Author

Zhang, Yiling, Xie, Shumin, Huang, Weijuan, Zhan, Lei, Huang, Yingwei, Chen, Pei, and Xie, Fengwei

Subjects
CARBOXYMETHYL compounds, GELATIN, STARCH, CHEMICAL industry, HYDROGEN bonding interactions, BIOPOLYMERS, RHEOLOGY
Abstract

Background: Modified polysaccharides have greatly expanded applications in comparison with native polysaccharides due to their improved compatibility and interactions with proteins and active compounds in food‐related areas. Nonetheless, there is a noticeable dearth of research concerning the utilization of carboxymethyl starch (CMS) as a microcapsule wall material in food processing, despite its common use in pharmaceutical delivery. The development of an economical and safe embedding carrier using CMS and gelatin (GE) holds immense importance within the food‐processing industry. In this work, the potential of innovative coacervates formed by the combination of GE and CMS as a reliable, stable, and biodegradable embedding carrier is evaluated by turbidity measurements, thermogravimetric analysis (TGA), X‐ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, and rheological measurements. Results: The results indicate that GE‐CMS coacervates primarily resulted from electrostatic interactions and hydrogen bonding. The optimal coacervation was observed at pH 4.6 and with a GE/CMS blend ratio of 3:1 (w/w). However, the addition of NaCl reduced coacervation and made it less sensitive to temperature changes (35–55 °C). In comparison with individual GE or CMS, the coacervates exhibited higher thermal stability, as shown by TGA. X‐ray diffraction analysis shows that the GE‐CMS coacervates maintained an amorphous structure. Rheological testing reveals that the GE‐CMS coacervates exhibited shear‐thinning behavior and gel‐like properties. Conclusion: Overall, attaining electroneutrality in the mixture boosts the formation of a denser structure and enhances rheological properties, leading to promising applications in food, biomaterials, cosmetics, and pharmaceutical products. © 2023 Society of Chemical Industry. [ABSTRACT FROM AUTHOR]

Published
2024
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26. GEHS 19 QEHC 6 Huang Appendixes B and D

Author

Huang, Yingwei

Abstract

The Chinese work point system was a series of labor organization rules and regulations used for the calculation of the amount and quality of labor and for determining the form of labor organization. The history of the work point system is thus the history of China’s agricultural collectivization. In this book we analyse how these work points were allotted, how they provided, or impaired, labor incentives, and if they leave open the possibility for income mobility.

Published
2022
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32. Frameshift mutation of Timm8a1 gene in mouse leads to an abnormal mitochondrial structure in the brain, correlating with hearing and memory impairment

Author

Song, Pingping, primary, Guan, Yuqing, additional, Chen, Xia, additional, Wu, Chaochen, additional, Qiao, An, additional, Jiang, Haishan, additional, Li, Qi, additional, Huang, Yingwei, additional, Huang, Wei, additional, Xu, Miaojing, additional, Niemtiah, Ouattara, additional, Yuan, Chao, additional, Li, Wei, additional, Zhou, Liang, additional, Xiao, Zhongju, additional, Pan, Suyue, additional, and Hu, Yafang, additional

Published
2020
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39. The Feasibility of Metagenomic Next-Generation Sequencing to Identify Pathogens Causing Tuberculous Meningitis in Cerebrospinal Fluid

Author

Wang, Shengnan, primary, Chen, Yingli, additional, Wang, Dongmei, additional, Wu, Yongming, additional, Zhao, Deqiang, additional, Zhang, Jianzhao, additional, Xie, Huifang, additional, Gong, Yanping, additional, Sun, Ruixue, additional, Nie, Xifang, additional, Jiang, Haishan, additional, Zhang, Jian, additional, Li, Wei, additional, Liu, Guanghui, additional, Li, Xuan, additional, Huang, Kaibin, additional, Huang, Yingwei, additional, Li, Yongjun, additional, Guan, Hongzhi, additional, Pan, Suyue, additional, and Hu, Yafang, additional

Published
2019
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40. Numerically efficient modelling and simulation of integrated ac-dc power systems using dynamic phasor type solutions

Author

Huang, Yingwei

Abstract

Modern power systems, from continent-spanning networks down to isolated microgrids, are experiencing unprecedented technological changes with broader use of direct current (dc) in addition to traditional alternating current (ac). Such integrated ac-dc power systems present notable challenges in all aspects of design, analysis, control, and operation, where extensive computer simulations play the essential and enabling role. Due to the use of diverse types of signal representation and component formulation, state-of-the-art power system simulation tools are limited to their distinct time scales of transient phenomena. This thesis considers the dynamic phasor (DP) type modelling approaches, where two types of DP theories, namely the shifted-frequency analysis (SFA) and the generalized averaging method (GAM), are considered. In DP-type simulations, power systems are modelled using analogous low-pass time-phasor signals, thereby offering flexible selection of time-step sizes and superior combination of numerical accuracy and efficiency. The ultimate goal of this research is to increase the numerical efficiency of DP-type simulations for the integrated ac-dc power systems. This is achieved by proposing several new DP component models with desirable features and improved numerical properties. First, the constant-parameter SFA model of synchronous machines is proposed to avoid numerically-costly recalculations of the time-varying stator-network matrices. This model is then extended to induction machines for modelling in state-variable based (SV-based) simulation tools. Next, we propose a new, highly efficient model of line-commutated rectifiers using a parametric DP formulation, which is demonstrated as valid for various system operating conditions. Moreover, the effect of ac side harmonics is incorporated to improve modelling fidelity. Finally, the interface between SFA- and GAM-type DPs is achieved to interconnect the proposed DP models. Rigorous case studies demonstrate the superior numerical efficiency of the proposed models, and their advantageous accuracy in capturing the desired phenomena of ac-dc power systems. It is envisioned that the proposed models will become highly useful to many researchers and engineers worldwide, and facilitate the development of next-generation power system simulation tools.

Published
2018
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50. Frameshift mutation of Timm8a1gene in mouse leads to an abnormal mitochondrial structure in the brain, correlating with hearing and memory impairment

Author

Song, Pingping, Guan, Yuqing, Chen, Xia, Wu, Chaochen, Qiao, An, Jiang, Haishan, Li, Qi, Huang, Yingwei, Huang, Wei, Xu, Miaojing, Niemtiah, Ouattara, Yuan, Chao, Li, Wei, Zhou, Liang, Xiao, Zhongju, Pan, Suyue, and Hu, Yafang

Abstract

BackgroundDeafness-dystonia-optic neuronopathy (DDON) syndrome is a progressive X-linked recessive disorder characterised by deafness, dystonia, ataxia and reduced visual acuity. The causative gene deafness/dystonia protein 1 (DDP1)/translocase of the inner membrane 8A (TIMM8A) encodes a mitochondrial intermembrane space chaperon. The molecular mechanism of DDON remains unclear, and detailed information on animal models has not been reported yet.Methods and resultsWe characterized a family with DDON syndrome, in which the affected members carried a novel hemizygous variation in the DDP1gene (NM_004085.3, c.82C>T, p.Q28X). We then generated a mouse line with the hemizygous mutation (p.I23fs49X) in the Timm8a1gene using the clustered regularly interspaced short palindromic repeats /Cas9 technology. The deficient DDP1 protein was confirmed by western blot assay. Electron microscopic analysis of brain samples from the mutant mice indicated abnormal mitochondrial structure in several brain areas. However, Timm8a1I23fs49X/ymutation did not affect the import of mitochondria inner member protein Tim23 and outer member protein Tom40 as well as the biogenesis of the proteins in the mitochondrial oxidative phosphorylation system and the manganese superoxide dismutase (MnSOD / SOD-2). The male mice with Timm8a1I23fs49X/ymutant exhibited less weight gain, hearing impairment and cognitive deficit.ConclusionOur study suggests that frameshift mutation of the Timm8a1gene in mice leads to an abnormal mitochondrial structure in the brain, correlating with hearing and memory impairment. Taken together, we have successfully generated a mouse model bearing loss-of-function mutation in Timm8a1.

Published
2021
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