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电气防爆 2021年第1期 13-16页

作者：张绪文王海东李宏汉威科技集团股份有限公司河南郑州450001

提出了基于红外原理的火焰探测器的设计方案,并落地实施,采用高性能32位单片机作为主控芯片和热释电传感器,作为采集火焰信号的核心元器件,利用放大电路,构成数据采集,数据处理的系统。与气体探测器产品搭配使用,组成气体、火灾应急管... 详细信息

提出了基于红外原理的火焰探测器的设计方案,并落地实施,采用高性能32位单片机作为主控芯片和热释电传感器,作为采集火焰信号的核心元器件,利用放大电路,构成数据采集,数据处理的系统。与气体探测器产品搭配使用,组成气体、火灾应急管理监控系统,为企业和员工的生命和财产安全保驾护航。

关键词：红外传感器热释电火焰探测器 FD10系列火焰探测器

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The Role of Glutathione S-Transferase in the Regulation of Plant Growth, and Responses to Environmental Stresses

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Phyton-International Journal of Experimental Botany 2025年第3期94卷 583-601页

作者： Chen Lin Zidan zhang Zhao zhang Yuxiang Long xuwen Shen Jinghao zhang Youping Wang Key Laboratory of Plant Functional Genomics of the Ministry of Education Yangzhou UniversityYangzhou225009China Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding Yangzhou UniversityYangzhou225009China

Glutathione S-transferases (GSTs) represent a large and diverse enzyme family ubiquitously distributed across the plant kingdom. These proteins catalyze the conjugation of glutathione (GSH) with electrophilic substrates in response to various stress conditions. Beyond their role in stress adaptation, certain GSTs are integral regulators of plant growth and development, contributing to a range of physiological processes. Most GST proteins exhibit dual enzymatic activities, functioning as both transferases and peroxidases, which enables their involvement in diverse cellular processes, including detoxification and stress responses. Recent advancements, particularly in X-ray crystallography, have enabled detailed structural analysis of GST proteins, significantly enhancing our understanding of their biological functions. This review offers a comprehensive overview of the classification and structural characteristics of GSTs in plants. It also highlights recent findings on their roles in plant growth and development, cell signaling, catalytic transport, and stress tolerance. Furthermore, key scientific challenges related to GSTs are discussed, focusing on their potential applications in agriculture. These insights aim to facilitate the screening of functional GST genes and support molecular breeding efforts across diverse crop species.

关键词： Glutathione S-transferase biotic and abiotic stress plant growth and development signal transduction biological functions

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A novel hybrid battery thermal management system using TPMS structure and delayed cooling scheme

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APPLIED THERMAL ENGINEERING 2025年 259卷

作者： Yang, Haonan Wang, Zhaohui Bao, Rongqing zhang, Bowen Zhu, xuwen Wang, Hongxia Wuhan Univ Sci & Technol Key Lab Met Equipment & Control Technol Minist Educ Wuhan 430081 Hubei Peoples R China Wuhan Univ Sci & Technol Hubei Key Lab Mech Transmiss & Mfg Engn Wuhan 430081 Hubei Peoples R China Wuhan Univ Technol Xiangyang Demonstrat Zone Hubei Longzhong Lab Xiangyang 441000 Hubei Peoples R China Hubei Univ Automot Technol Coll Mech Engn Shiyan 442002 Hubei Peoples R China

Phase change material (PCM) cooling plays an important role in battery thermal management systems (BTMS). However, PCM has been suffering from low thermal conductivity and inefficient latent heat recovery. Based on this, this study designs a hybrid BTMS combining triply periodic minimal surface (TPMS), PCM, and liquid cooling, and proposes a cooling scheme that determines the operating time of the coolant based on the battery temperature. The system aims to improve the utilization of PCM in two different ways: structural design and cooling scheme. Numerical analysis was used to compare the effects of different structures on the melting rate of PCM and to study the thermal performance of the battery module under various cooling schemes. The results show that the effective thermal conductivity of PCM/TPMS composites reaches 21 W/(m & sdot;K), which can effectively enhance the heat absorption rate of PCM. In particular, the I-graph-and-wrapped-package (IWP) structure combined with PCM is the most effective. Under the continuous cooling scheme, when the coolant flow rate is 0.04 m/s, the temperature of the battery at a 3C discharge rate can be controlled at 308.28 K, but the PCM utilization rate is only 0.25. After adopting the delayed cooling scheme, the performance of the BTMS cooling remains excellent, with the battery temperature at only 309.88 K and the liquid phase rate of PCM reaching 0.97. For the first time, the heat absorbed by passive cooling is comparable to that of active cooling in the BTMS heat absorption energy distribution, with a 73 % reduction in pumping energy consumption. Furthermore, under cycling conditions, the delayed cooling scheme still performs well, keeping the battery temperature below 313.15 K. In addition, it should be noted that the flow rate of the coolant should be determined by the charging rate. Additionally, the BTMS is capable of addressing the heat dissipation challenges in different ambient temperatures. This study can guide for

关键词： Phase change material Triply periodic minimal surface Delayed cooling scheme Battery thermal management system

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Optimising maize threshing by integrating DEM simulation and interpretive enhanced predictive modelling

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BIOSYSTEMS ENGINEERING 2024年 244卷 93-106页

作者： Fang, xuwen zhang, Jinsong Zhao, Xuelin zhang, Li Zhou, Deyi Yu, Chunsheng Hu, Wei zhang, Qiang Jilin Univ Coll Biol & Agr Engn Changchun 130022 Peoples R China

Maize threshing is a complex and dynamic process, and optimisation of operating parameters is essential to improve threshing quality and efficiency. In this study, machine learning was combined with interpretability analysis to investigate the dynamic effects of operating parameters on maize threshing quality and to optimise the threshing process. The maize cob model used to simulate threshing was validated by stacking angle and tensile test. Real-time drum operating parameters and threshing quality data obtained through Discrete Element Method (DEM) threshing simulation were used to train a threshing quality prediction network. The prediction accuracy was improved by incorporating an attention mechanism into the Long Short-Term Memory (LSTM) model with an optimised Root Mean Square Error (RMSE) of 0.0041. The global feature importance and dynamic Shapley Additive Explanations (SHAP) value analyses demonstrated that rotational speed is a key determinant of unthreshed and damaged rates and that its effect varies significantly at different stages of the threshing process. Guided by these analyses, a staged speed adjustment experiment was conducted. Specifically, an increase in rotational speed during the initial threshing phase markedly lowered the initial unthreshed rate for medium and high-speed groups to 6.63% and 2.73%, respectively, a significant improvement over the 67.70% observed in the low-speed group. The final damage rate in the high-speed group decreased by 9.79% relative to the low-speed group. This dynamic analysis approach provides a novel paradigm for optimising complex agricultural processes under varying conditions, offering interpretable insights for precise process control and improvement.

关键词： Simulation Neural network forecast Game theory Agricultural optimisation Interpretable models Data-driven agriculture

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某铁路线崩塌落石危险性评估与防护措施研究

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路基工程 2022年第2期 189-194页

作者：张旭文韩剑侠范刚张文超陈蜀闽周家文四川大学水利水电学院成都610065 西藏自治区地质矿产勘查开发局第二地质大队拉萨850000 中国铁路成都局集团有限公司成都610082

采用三维激光扫描技术建立高精度地形模型,运用Rocpro3D软件对某铁路线某点位;3危岩区滚石影响范围及防治措施进行模拟研究。结果表明:现有防护措施下,落石滚落过程中存在明显的归槽现象,公路处滚石灾害等级为高和非常高,下部铁路处灾... 详细信息

采用三维激光扫描技术建立高精度地形模型,运用Rocpro3D软件对某铁路线某点位;3危岩区滚石影响范围及防治措施进行模拟研究。结果表明:现有防护措施下,落石滚落过程中存在明显的归槽现象,公路处滚石灾害等级为高和非常高,下部铁路处灾害等级为中等和高,受滚石威胁较大;在坡脚处补充三道被动防护网后,显著降低了落石滚落至铁路路基的概率。

关键词：崩塌落石三维仿真模拟运动特征运动速度弹跳高度运动动能危险性评估被动防护网

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Corn Stover-derived nanocellulose and lignin-modified particles: Pickering emulsion stabilizers and potential quercetin sustained-release carriers

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FOOD CHEMISTRY 2025年第Pt 2期465卷 142021页

作者： Wu, Xinling zhang, Qiang Zhou, Deyi zhang, Li Zhou, Haigen Gao, Xiaodi Fang, xuwen Huo, Chao zhang, Jinsong Jilin Univ Coll Biol & Agr Engn Changchun 130022 Peoples R China

Pickering emulsions (PEs) have wide applications in delivering nutraceuticals. However, the impact of extracting nanocellulose from corn stover on stabilizing PEs and delivering nutraceuticals remains unclear. In this study, four types of nanocellulose, cellulose nanocrystals (CNC), cellulose nanofibers (CNF), lignin-containing cellulose nanocrystals (LCNC), and lignin-containing cellulose nanofibers (LCNF) were successfully prepared from corn stover, an agricultural waste. Among them, LCNC and LCNF exhibited stable reticulated microstructures, lower crystallinity, and excellent thermal stability. Besides, lignin enhanced the nanoparticles' hydrophobicity, promoting the formation of more ideally amphiphilic particles, resulting in denser emulsions at the oil-water interface. Furthermore, emulsions stabilized by LCNC and LCNF demonstrated remarkable resistance to quercetin degradation under UV light exposure (with residual level exceeding 90 %) and improved quercetin's bioaccessibility during the in vitro digestion tests, achieving the highest bioaccessibility of 48.3 %. This study provided an innovative perspective on utilizing stover-derived materials for stabilizing PEs and delivering lipophilic nutrients.

关键词： Corn Stover nanocellulose Lignin Pickering emulsion Quercetin delivery In vitro digestion

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A High-Performance n-Type Thermoelectric Polymer from C−H/C−H Oxidative Direct Arylation Polycondensation

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Angewandte Chemie 2023年第20期135卷

作者： Yibo Shi xuwen zhang Tian Du Prof. Yang Han Prof. Yunfeng Deng Prof. Yanhou Geng School of Materials Science and Engineering and Tianjin Key Laboratory of Molecular Optoelectronic Science Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) 300072 Tianjin P. R. China Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University 350207 Binhai New City Fuzhou China

n-Type conjugated polymers (CPs) are crucial in the applications of organic electronics. Direct coupling of electron-deficient C−H monomer via selective C−H activation, namely C−H/C−H oxidative direct arylation polycondensation (Oxi-DArP), is an ideal approach toward such CPs. Herein, Oxi-DArP is firstly adopted to synthesize a high-performance n-type CP using a newly developed monomer, i.e., 3,6-di(thiazol-5-yl)-diketopyrrolopyrrole (Tz-5-DPP). Tz-5-DPP based homopolymer PTz - 5 - DPP with a molecular weight of 22 kDa has been synthesized via Oxi-DArP. After n-doping, PTz - 5 - DPP films exhibited electric conductivity values up to 8 S cm −1 and power factors ( PFs ) up to 106 μW m −1 K −2 . Notably, this PF value is the highest for n-type polymer thermoelectric materials to date. The Oxi-DArP synthesis and the excellent n-type performance of the polymer make this work an important step toward the straightforward and sustainable preparation of high-performance n-type polymer semiconductors.

关键词： Conjugated Polymer Diketopyrrolopyrrole Direct Arylation Polycondensation Electron Transport Organic Thermoelectrics

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Silver Nanocluster-Tagged Electrochemiluminescence Immunoassay with a Sole and Narrow Triggering Potential Window

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ANALYTICAL CHEMISTRY 2024年第4期96卷 1700-1706页

作者： Gao, xuwen Tian, Zhijian Ren, Xiaoxuan Ai, Yaojia zhang, Bin Zou, Guizheng Shandong Univ Sch Chem & Chem Engn Jinan 250100 Peoples R China

The commercialized electrochemiluminescence (ECL) immunoassay is carried out by holding luminophore Ru-(bpy)(3)(2+) at a given potential. Designing an electrochemiluminophore with a narrow triggering potential window is strongly anticipated to decrease the electrochemical cross-talk and improve the flux of the commercialized ECL immunoassay in a potential-resolved way. Herein, L-penicillamine-capped silver nanoclusters (LPA-AgNCs) are facilely synthesized and utilized as tags to perform the ECL immunoassay with a sole and narrow triggering potential window of 0.24 V by employing hydrazine (N2H4) as a coreactant. The maximum ECL emission of the LPA-AgNCs/N2H4 system is located ca. +1.27 V. Upon immobilizing LPA-AgNCs onto the electrode surface via forming a sandwich immunocomplex, the ECL of LPA-AgNCs/N2H4 can be utilized to sensitively and selectively determine human carcinoembryonic antigen from 0.5 to 1000 pg/mL with a low limit of detection of 0.1 pg/mL (S/N = 3). This work might open a way to screen electrochemiluminophores for the multiple ECL immunoassay in a potential-resolved way.

关键词： Biopolymers Immunoassays Immunology Peptides and proteins Sensors

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P60. The effect of weaning age and feed type on disaccharidase activity in early post weaned piglets

Animal - Science proceedings

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Animal - Science proceedings 2022年第2期13卷 175-175页

作者： Johannes Gulmann Madsen xuwen zhang Niels Jørgen Kjeldsen Mette Skou Hedemann Charlotte Amdi University Of Copenhagen Frederiksberg C Denmark SEGES Copenhagen Denmark Aarhus University Foulum Denmark

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Low-Triggering-Potential and Narrow-Potential-Window Electrochemiluminescence of Silver Nanoclusters for Gene Assay

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ANALYTICAL CHEMISTRY 2024年第17期96卷 6652-6658页

作者： Ai, Yaojia Gao, xuwen Ren, Xiaoxuan Li, Mengwei zhang, Bin Zou, Guizheng Shandong Univ Sch Chem & Chem Engn Jinan 250100 Peoples R China

A low-triggering potential and a narrow-potential window are anticipated to decrease the electrochemical interference and cross talk of electrochemiluminescence (ECL). Herein, by exploiting the low oxidative potential (0.82 V vs Ag/AgCl) of dihydrolipoic acid-capped sliver nanoclusters (DHLA-AgNCs), a coreactant ECL system of DHLA-AgNCs/hydrazine (N2H4) is proposed to achieve efficient and oxidative-reduction ECL with a low-triggering potential of 0.82 V (vs Ag/AgCl) and a narrow-potential window of 0.22 V. The low-triggering-potential and narrow-potential-window nature of ECL can be primarily preserved upon labeling DHLA-AgNCs to probe DNA and immobilizing DHLA-AgNCs onto the Au surface via sandwiched hybridization, which eventually enables a selective ECL strategy for the gene assay at +0.82 V. This gene assay strategy can sensitively determine the gene of human papillomavirus from 10 to 1000 pM with a low limit of detection of 5 pM (S/N = 3) and would open a way to improve the applied ECL bioassay.

关键词： Assays Electrodes Gold Particulate matter Precursors

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