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紫外线下纳米TiO_(2)改性涂层混凝土抗碳化性能研究

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人民黄河 2024年第6期46卷 126-130,135页

作者：王建有石鹏超袁群王大辉王姗姗曹宏亮郑州大学水利与交通学院河南郑州450001 河南省水利科技应用中心河南郑州450003 河南水利勘测设计研究有限公司河南郑州450016

为提升涂层混凝土在紫外线照射下的抗碳化性能,通过引入不同掺量金红石型纳米TiO_(2)对水泥基结晶涂层和聚氨酯涂层进行改性。结果表明:紫外线照射一定程度上会削弱涂层混凝土的抗碳化性能;使用纳米TiO_(2)改性后,两种涂层混凝土在紫外... 详细信息

为提升涂层混凝土在紫外线照射下的抗碳化性能,通过引入不同掺量金红石型纳米TiO_(2)对水泥基结晶涂层和聚氨酯涂层进行改性。结果表明:紫外线照射一定程度上会削弱涂层混凝土的抗碳化性能;使用纳米TiO_(2)改性后,两种涂层混凝土在紫外线照射下的抗碳化性能均得到了不同程度的提升,随着纳米TiO_(2)掺量的增加,两种涂层混凝土抗碳化性能均呈现先提升后降低的趋势,其中水泥基结晶涂层中纳米TiO_(2)最优掺量为2%,聚氨酯涂层中纳米TiO_(2)最优掺量为1%~2%,紫外线照射下纳米TiO_(2)对聚氨酯涂层混凝土抗碳化性能的提升最为明显。

关键词：混凝土碳化紫外线涂层纳米TiO_(2)

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城市水库溃坝耦合极端降雨前后模拟对比分析

人民黄河 2024年第5期46卷 68-73页

作者：王建有张曼曼孙奔博李振坤郑州大学水利与交通学院河南郑州450001 开封市水利工程质量安全中心河南开封475000

以探究城市上游水库溃坝耦合极端降雨及仅溃坝两种工况下洪水灾害程度的变化为目标,确定郑州市二七区、中原区、金水区及惠济区为研究区域,结合芝加哥雨型公式及长历时暴雨强度公式推求设计暴雨,依托“7·20郑州特大暴雨”实测数据推求... 详细信息

以探究城市上游水库溃坝耦合极端降雨及仅溃坝两种工况下洪水灾害程度的变化为目标,确定郑州市二七区、中原区、金水区及惠济区为研究区域,结合芝加哥雨型公式及长历时暴雨强度公式推求设计暴雨,依托“7·20郑州特大暴雨”实测数据推求研究区域产汇流特征,建立极端降雨与洪水过程的响应关系。在此基础上,以郑州市二七区尖岗水库为研究对象,构建两种工况下二维溃坝洪水演进模型,对水情信息进行对比分析。结果表明:相比于仅溃坝,降雨耦合溃坝工况下淹没范围更大,其中增加的淹没范围内各点的最大水深、流速、洪水严重性程度均处于较低等级。在河道两侧,两种工况下各等级水深、流速及洪水严重性淹没范围大致相同;地势较低的区域降雨耦合溃坝工况下淹没水深和流速增大较多,易涝点水深增加约0.6 m,选取断面水面线升高约1 m。

关键词：城市水库溃坝耦合降雨极端降雨淹没水深尖岗水库郑州市

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“双碳”目标下煤炭绿色低碳发展新思路

煤炭学报 2024年第1期49卷 152-171页

作者：王双明刘浪朱梦博申艳军师庆民孙强方治余阮仕山何伟杨潘王建友西安科技大学煤炭绿色开采地质研究院陕西西安710054 西安科技大学能源学院陕西西安710054 长安大学地质工程与测绘学院陕西西安710054 西安科技大学地质与环境学院陕西西安710054 西安弗尔绿创矿业科技有限责任公司陕西西安710024

在“双碳”目标背景与当前技术条件下,“煤”“废”“碳”构成了煤炭的“不可能三角”,严重制约着煤炭行业的绿色低碳可持续发展。秉持“以废治废”“从哪里来到哪里去”的原则,着眼“煤”的减损化开采、“废”的功能化利用、“碳”的... 详细信息

在“双碳”目标背景与当前技术条件下,“煤”“废”“碳”构成了煤炭的“不可能三角”,严重制约着煤炭行业的绿色低碳可持续发展。秉持“以废治废”“从哪里来到哪里去”的原则,着眼“煤”的减损化开采、“废”的功能化利用、“碳”的低碳化处置三维视角,探索“煤”“废”“碳”协同发展路径,为破解煤炭“不可能三角”和推动煤炭绿色低碳发展提供全方位解决方案。具体包括:①阐明了“煤”的减损化开采科学内涵,明确了生态脆弱区含(隔)水层空间组合特征、采煤减损技术应用下的覆岩移动规律和覆岩采动损伤下的地表变形规律等减损化开采科学问题,提出了面间煤柱“掘-充-留”一体化、窄条带式充填开采和综采架后充填开采等减损化开采技术;②阐明了“废”的功能化利用科学内涵,明确了固废功能化利用的科学问题,包括镁-煤基固废原材料改性方法与机理、多元固废协同作用机制、全固废充填材料性能调控理论3个方面,形成了以固废原材料改性、固废基胶凝材料研发、全固废充填材料制备为核心的固废功能化利用关键技术体系;③阐明了“碳”的低碳化处置科学内涵,提出了“碳”的低碳化处置科学实践框架和实施路径,厘清了在“碳”的低碳化处置过程中关于矿化材料制备、封存空间构筑、CO_(2)封存机理与调控、CO_(2)封存长期环境效应和储库稳定性等方面的科学问题,明确了碎胀空间CO_(2)封存、煤矿CO_(2)固碳充填等关键技术,形成了利用煤矿采空区实现CO_(2)低碳封存的新模式。立足煤炭绿色低碳可持续发展,协同推进“煤”的减损化开采、“废”的功能化利用与“碳”的低碳化处置,对推动煤炭行业“双碳”目标实现具有重要意义。

关键词：绿色低碳减损化开采功能化利用低碳化处置

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Performance comparison of lithium fractionation from magnesium via continuous selective nanofiltration/electrodialysis

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中国化学工程学报:英文版 2023年第7期59卷 42-50页

作者： Yong Xu Qingbai Chen Yang Gao jianyou wang Huiqing Fan Fei Zhao Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution College of Environmental Science and EngineeringNankai UniversityTianjin 300350China College of Chemical Engineering and Material Quanzhou Normal UniversityQuanzhou 362000China Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China

Although selective nanofiltration(SNF)and selective electrodialysis(SED)have been widely adopted in the field of Mg^(2+)/Li^(+)separation,their differences have not been illustrated *** this study,for the first time,SNF and SED processes in continuous mode were studied for Li+fractionation from the same brine with high Mg/Li ratios and their differences were discussed in *** a fair analysis of the two processes,typical factors were ***,the optimal operating pressure and feed flow rate for SNF were 2.4 MPa and 140 L·h^(-1),respectively,while the optimal cell-pair voltage and replenishment flow rate for SED were 1.0 V and 14 L·h^(-1),*** the Li^(+)fractionation capacity of the two processes were similar,the selectivity coefficient of SNF was 24.7% higher than that of SED and,thus,the Mg/Li ratio in purified stream of the former was 19.0% lower than that of the *** to higher ion driving force,SED had clear advantages in recovery ratio and concentration ***,the specific energy consumption of SED was 20.1% lower than that of *** study provided a better understanding and guidance for the application and improvement of the two technologies.

关键词： High Mg/Li brine Purification Membrane Nanofiltration Electrodialysis Lithium recovery

Cost-Based Research on Energy Management Strategy of Electric Vehicles Using Hybird Energy Storage System

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Tsinghua Science and Technology 2024年第3期29卷 684-697页

作者： Juanying Zhou jianyou Zhao Lufeng wang School of Automobile Chang’an UniversityXi’an 710064Chinaand also with College of Automotive Engineering and General AviationShaanxi Vocational and Technical CollegeXi’an 710038China School of Automobile Chang’an UniversityXi’an 710064China College of Automobile Shaanxi College of Communication TechnologyXi’an 710018China

This paper uses the minimization and weighted sum of battery capacity loss and energy consumption under driving cycles as objective functions to improve the economy of Electric Vehicles(EVs)with an hybrid energy storage system composed of power batteries and ***,Dynamic Programming(DP)is employed to determine the objective function values under different weight coefficients,the comprehensive cost consisting of battery aging and power consumption costs,and the relationship between the hybrid power *** also evaluate the real-time fuzzy Energy Management Strategy(EMS),fuzzy control strategies,and a strategy based on DP using the World Light vehicle Test Procedure(WLTP)driving cycle and a synthesis driving cycle derived from New European Driving Cycle(NEDC),WLTP,and Urban Dynamometer Driving Schedule(UDDS)as ***,the proposed strategy is compared with the fuzzy control strategy and the strategy based on *** with fuzzy energy management strategy(namely FZY-EMS),the proposed EMS reduces the battery capacity loss and system energy *** results demonstrate the effectiveness of the proposed EMS in improving EV economy.

关键词： automobile engineering hybrid energy storage Energy Management Strategy(EMS) fuzzy control strategy

煤焦-Ni复合物催化甲烷干重整及其反应后形成碳材料的电化学性能研究

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低碳化学与化工 2024年第6期49卷 54-62页

作者：周娅兰王建友杨文成张磊张建波马晓迅西北大学化工学院陕西西安710127 榆林市榆神工业区能源科技发展有限公司陕西榆林719302 陕西煤业化工技术研究院有限责任公司陕西西安710100

甲烷干重整(DRM)反应能够将CH_(4)和CO_(2)两种温室气体转化为合成气,具有突出的环境和经济效益。但DRM反应过程的高温条件和产出的积炭易造成Ni等金属催化剂的失活,限制了其在工业上的应用。中低温煤热解半焦(简称“煤焦”)具有作为高... 详细信息

甲烷干重整(DRM)反应能够将CH_(4)和CO_(2)两种温室气体转化为合成气,具有突出的环境和经济效益。但DRM反应过程的高温条件和产出的积炭易造成Ni等金属催化剂的失活,限制了其在工业上的应用。中低温煤热解半焦(简称“煤焦”)具有作为高效Ni基催化剂载体的良好潜力。为了提升DRM反应性能并促进煤焦利用,设计并制备了一种煤焦-Ni复合物,以K_(2)CO_(3)为助剂,考察了DRM反应性能、煤焦-Ni复合物在反应后形成碳材料的表面结构特征及其用作超级电容器电极材料的性能。研究发现,当m(煤焦):m(K_(2)CO_(3)):m(Ni)=1.00:1.00:0.05、DRM反应温度为850℃时,CH_(4)和CO_(2)初始转化率分别达71%和72%。优化反应条件(催化剂的Ni负载量、反应温度和反应时间)后,以煤焦-Ni复合物在反应后形成的碳材料为超级电容器电极材料可表现出优良的电化学性能,其中,CC-2在扫描速率为5 mV/s时,比电容为136 F/g;在电流密度为1 A/g时,比电容为143 F/g。本研究为DRM和煤焦的协同转化利用、反应后碳材料(反应中作为催化剂或催化剂载体)的回收利用提供了潜在路径。

关键词：甲烷干重整煤焦 Ni 电极材料比电容

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Chemical proteomic profiling with photoaffinity labeling strategy identifies antimalarial targets of artemisinin

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Chinese Chemical Letters 2023年第12期34卷 486-491页

作者： Peng Gao Jiayun Chen Peng Sun jianyou wang Huan Tang Fei Xia Liwei Gu Huimin Zhang Chen wang Yin Kwan Wong Yinhua Zhu Chengchao Xu Jigang wang Artemisinin Research Center and Institute of Chinese Materia MedicaChina Academy of Chinese Medical Sciences Pharmaceutical College Henan University Shandong Academy of Chinese Medicine Department of Nephrology Shenzhen Key Laboratory of Kidney DiseasesShenzhen Clinical Research Centre for GeriatricsShenzhen People's HospitalThe First Affiliated HospitalSouthern University of Science and Technology

Present research on the antimalarial mechanisms of artemisinin(ART) is mainly focused on covalent drug binding targets alkylated by free radicals, while non-covalent binding targets have rarely been ***, we developed a novel photoaffinity probe of ART to globally capture and identify the antimalarial target proteins of ART through chemical proteomics. The results demonstrated that ART can bind to parasite proteins by both covalent and non-covalent modification, and these may jointly contribute to the antimalarial effects. Our work enriches the research on the antimalarial targets of ART, and provides a new perspective for further exploring the antimalarial mechanism of ART.

关键词： Artemisinin Antimalarial Chemical proteomic Target identification Photoaffinity probe

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白细胞介素-6与精神分裂症的关联性研究

临床医学研究与实践 2024年第8期9卷 31-34页

作者：卢丹玉刘国艳杨通飞王健尤谭艳梅梁巧妍南宁市第五人民医院广西南宁530031

目的探究白细胞介素-6(IL-6)与精神分裂症的关联性。方法选取2019年8月至2020年7月在南宁市第五人民医院住院的113例精神分裂症患者(病例组)和同期在本院进行健康体检的110例本院职工(对照组)作为研究对象。检测研究对象的IL-6水平及IL-... 详细信息

目的探究白细胞介素-6(IL-6)与精神分裂症的关联性。方法选取2019年8月至2020年7月在南宁市第五人民医院住院的113例精神分裂症患者(病例组)和同期在本院进行健康体检的110例本院职工(对照组)作为研究对象。检测研究对象的IL-6水平及IL-6基因多态性;分析IL-6与精神分裂症的关联。结果病例组的IL-6水平高于对照组,差异具有统计学意义(P0.05)。精神分裂症患者rs1800795位点检测到1例CG基因型,其他均为GG基因型;rs1800796位点检测到CC、CG、GG基因型。两组的IL-6基因rs1800796位点GG基因型分布频率比较,差异具有统计学意义(P0.05)。精神分裂症患者CC、CG、GG基因型及C、G等位基因的IL-6水平比较,差异具有统计学意义(P<0.05)。结论血清IL-6水平可能与精神分裂症存在关联,IL-6基因rs1800796位点G等位基因可能与精神分裂症的发生相关。

关键词：精神分裂症白细胞介素-6 基因多态性

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通过鉴定关键靶标蛋白探究青蒿素抗疟机制

Engineering 2023年第12期31卷 86-97页

作者： Peng Gao jianyou wang Jiayun Chen Liwei Gu Chen wang Liting Xu Yin Kwan Wong Huimin Zhang Chengchao Xu Lingyun Dai Jigang wang State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs Artemisinin Research Centerand Institute of Chinese Materia MedicaChina Academy of Chinese Medical SciencesBeijing 100700China Pharmaceutical College Henan UniversityKaifeng 475004China Shandong Academy of Chinese Medicine Jinan 250014China Department of Infectious Disease Shenzhen Clinical Research Centre for GeriatricsShenzhen People’s Hospital&the First Affiliated Hospital of Southern University of Science and TechnologyShenzhen 518020China

The widespread use of artemisinin(ART)and its derivatives has significantly reduced the global burden of malaria;however,malaria still poses a serious threat to global *** significant progress has been achieved in elucidating the antimalarial mechanisms of ART,the most crucial target proteins and pathways of ART remain *** on the exact antimalarial mechanisms of ART is urgently needed,as signs of emerging ART resistance have been observed in some regions of the ***,we used a combined strategy involving mass spectrometry-coupled cellular thermal shift assay(MS-CETSA)and transcriptomics profiling to identify a group of putative antimalarial targets of *** then conducted a series of validation experiments on five prospective protein targets,demonstrating that ART may function against malaria parasites by interfering with redox homeostasis,lipid metabolism,and protein synthesis *** together,this study provides fresh perspectives on the antimalarial mechanisms of ART and identifies several crucial proteins involved in parasite survival that can be targeted to combat malaria.

关键词： Artemisinin Antimalaria Target identification MS-CETSA Transcriptomics