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Unlocking the potential of thin-film composite reverse osmosis membrane performance:Insights from mass transfer modeling

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Chinese Chemical Letters 2024年第5期35卷 66-76页

作者： Kexin Yuan Yulei Liu Haoran Feng Yi Liu Jun Cheng Beiyang luo Qinglian Wu xinyu Zhang Ying Wang Xian Bao Wanqian Guo Jun Ma State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China College of Architecture and Environment Sichuan UniversityChengdu 610065China School of Municipal and Environmental Engineering Shandong Jianzhu UniversityJi’nan 250101China College of Water Conservancy and Hydropower Engineering Sichuan Agricultural UniversityYaan 625014China

Thin-film composite(TFC)reverse osmosis(RO)membranes have attracted considerable attention in water treatment and desalination processes due to their specific separation ***,the trade-off effect between water flux and salt rejection poses huge challenges to further improvement in TFC RO membrane *** research works have been dedicated to optimizing membrane fabrication and modification for addressing this *** the meantime,several reviews summarized these ***,the existing reviews seldom analyzed these methods from a theoretical perspective and thus failed to offer effective optimization directions for the RO process from the root *** this review,we first propose a mass transfer model to facilitate a better understanding of the entire process of how water and solute permeate through RO membranes in detail,namely the migration process outside the membrane,the dissolution process on the membrane surface,and the diffusion process within the ***,the water and salt mass transfer behaviors obtained from model deduction are comprehensively analyzed to provide potential guidelines for alleviating the trade-off effect between water flux and salt rejection in the RO ***,inspired by the theoretical analysis and the accurate identification of existing bottlenecks,several promising strategies for both regulating RO membranes and optimizing operational conditions are proposed to further exploit the potential of RO membrane *** review is expected to guide the development of high-performance RO membranes from a mass transfer theory standpoint.

关键词： Reverse osmosis Mass transfer model Trade-off effect Membrane performance Optimization strategies

乡村振兴背景下乡村监督的实践偏离与有效性构建

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理论导刊 2022年第12期 77-83页

作者：罗心欲中共梅州市委党校市情研究中心广东梅州514071

相对监督的外在形式、形态,监督实效更令人关注和期待。乡村振兴背景下,乡村监督有效性通过“监督权力——治理权运行——乡村治理——乡村振兴”的逻辑线路递进呈现,具有导向复合性、要素多元性、评价相对性特征。现行乡村监督低效(失... 详细信息

相对监督的外在形式、形态,监督实效更令人关注和期待。乡村振兴背景下,乡村监督有效性通过“监督权力——治理权运行——乡村治理——乡村振兴”的逻辑线路递进呈现,具有导向复合性、要素多元性、评价相对性特征。现行乡村监督低效(失效)难题有着深刻的制度结构、运行环境和效力机制原因,表现为乡村监督成本不断攀升、监督绩效对资源投入高度依赖、基层群众身边的不正之风和腐败问题复杂多发。乡村监督有效性建构,应遵循总体监督理念,构建多元共监格局,推动监督能力建设,再造乡村政治生态。

关键词：乡村振兴乡村治理权力治理乡村监督有效性

The formation kinetics and control of biofilms by three dominant fungi species isolated from groundwater

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Journal of Environmental Sciences 2021年第11期33卷 148-160页

作者： xinyu luo Xiangqian Xu Ruihua Cao Qiqi Wan Jingyi Wang Huining Xu Yingzi Lin Gang Wen Tinglin Huang Key Laboratory of Northwest Water Resource Environment and EcologyMOEXi’an University of Architecture and TechnologyXi’an 710055China Shaanxi Key Laboratory of Environmental Engineering Xi’an University of Architecture and TechnologyXi’an 710055China School of Municipal and Environmental Engineering Jilin Jianzhu UniversityChangchun 130118China

Filamentous fungi can enter drinking water supply systems in various ways,and exist in suspended or sessile states which threatens the health of individuals by posing a high risk of invasive *** this study,the biofilms formation kinetics of the three genera of fungal spores,Aspergillus niger(***),Penicillium polonicum(***)and Trichoderma harzianum(***)isolated fromthe groundwater were reported,as well as the effects of water quality parameters were *** addition,the efficiency of low-concentrations of chlorine-based disinfectants(chlorine,chlorine dioxide and chloramine)on controlling the formation of fungal biofilms was *** results showed that the biofilms formation of the three genera of fungi could be divided into the following four phases:induction,exponential,stationary and sloughing *** optimum conditions for fungal biofilms formation were found to be neutral or weakly acidic at 28°C with rich *** fact,***,***,and *** were not observed to form mature biofilms in actual groundwater within 120 *** was found to have the maximum effect on the fungal biofilms formation in actual groundwater,followed by nitrogen and *** resistance of fungal species to disinfectants during the formation of biofilms decreased in the order:***>***>*** dioxide was observed to control the biofilms formation with maximum efficiency,followed by chlorine and ***,the results of this study will provide a beneficial understanding for the formation and control of fungal biofilms.

关键词： Filamentous fungi Biofilms Formation kinetics Chlorine-based disinfectants Control

Discovery and druggability evaluation of pyrrolamide-type GyrB/ParE inhibitor against drug-resistant bacterial infection

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Acta Pharmaceutica Sinica B 2023年第12期13卷 4945-4962页

作者： Xintong Zhao Jing Feng Jie Zhang Zunsheng Han Yuhua Hu Hui-Hui Shao Tianlei Li Jie Xia Kangfan Lei Weiping Wang Fangfang Lai Yuan Lin Bo Liu Kun Zhang Chi Zhang Qingyun Yang xinyu luo Hanyilan Zhang Chuang Li Wenxuan Zhang Song Wu State Key Laboratory of Bioactive Substance and Function of Natural Medicines Institute of Materia MedicaChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100050China

The bacterial ATP-competitive GyrB/ParE subunits of type II topoisomerase are important anti-bacterial targets to treat super drug-resistant bacterial *** we discovered novel pyrrolamide-type GyrB/ParE inhibitors based on the structural modifications of the candidate AzD5099 that was withdrawn from the clinical trials due to safety liabilities such as mitochondrial *** hydroxyisopropyl pyridazine compound 28 had a significant inhibitory effect on Gyrase(GyrB,IC_(50)=49 nmol/L)and a modest inhibitory effect on TopoⅣ(ParE,IC_(50)=1.513μmol/L)of Staphylococcus *** also had significant antibacterial activities on susceptible and resistant Gram-positive bacteria with a minimum inhibitory concentration(MIC)of less than 0.03μg/mL,which showed a time-dependent bactericidal effect and low frequencies of spontaneous resistance against *** 28 had better protective effects than the positive control drugs such as DS-2969(5)and AZD5099(6)in mouse models of sepsis induced by methicillin-resistant Staphylococcus aureus(MRSA)*** also showed better bactericidal activities than clinically used vancomycin in the mouse thigh MRSA infection ***,compound 28 has much lower mitochondrial toxicity than AZD5099(6)as well as excellent therapeutic indexes and pharmacokinetic *** present,compound 28 has been evaluated as a pre-clinical drug candidate for the treatment of drug-resistant Gram-positive bacterial *** the other hand,compound 28 also has good inhibitory activities against stubborn Gram-negative bacteria such as Escherichia coli(MIC=1μg/mL),which is comparable with the most potent pyrrolamide-type GyrB/ParE inhibitors reported *** addition,the structure-activity relationships of the compounds were also studied.

关键词： GyrB/ParE inhibitor Anti-bacterial infection Structural modifications Druggability evaluation

中国经济高质量发展的空间关联网络及其作用机制

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地理学报 2022年第8期77卷 1920-1936页

作者：王小华杨玉琪罗新雨温涛西南大学普惠金融与农业农村发展研究中心重庆400715 西南大学经济管理学院重庆400715 西南财经大学金融学院成都611130

高质量发展是中国“十四五”乃至更长时期经济社会发展的主题,也是适应社会主要矛盾变化的基本要求,更是建设社会主义现代化国家的关键路径和遵循经济实践规律的根本所在。本文从创新、协调、绿色、开放、共享5个维度构建经济高质量发... 详细信息

高质量发展是中国“十四五”乃至更长时期经济社会发展的主题,也是适应社会主要矛盾变化的基本要求,更是建设社会主义现代化国家的关键路径和遵循经济实践规律的根本所在。本文从创新、协调、绿色、开放、共享5个维度构建经济高质量发展的评价指标体系,测度了2011—2018年中国31个省(自治区、直辖市)的经济高质量发展水平,在此基础上运用社会网络分析(SNA)和二次指派程序(QAP)分别对经济高质量发展的关联网络结构特征和经济高质量发展差异的作用机制进行分析。研究发现:(1)空间关联网络的关联度一直为1,且网络密度稳定在0.2~0.26之间,省际经济高质量发展的空间关联网络通达性较强且存在多重叠加现象和一定的等级性,但关联紧密程度有待提高,各网络指标保持相对稳定。(2)省际经济高质量发展的空间关联网络可以分为4个板块,其中以西部省份为主的“净溢出”板块获益最小;以中部省份为主的“经纪人”板块起着“中介”和“桥梁”的作用;以环渤海省份为主的“双向溢出”板块和以长三角、东南沿海省份为主的“净受益”板块在空间关联网络中的掌控和支配作用更大,且在全国经济高质量发展过程中所起的极化作用大于涓滴作用。(3)人力资本、城市化水平、金融科技和环境质量的地区差异都会直接造成地区间经济高质量发展水平的差异,人力资本差异对其贡献超过了90%。

关键词：经济高质量发展空间关联网络社会网络分析二次指派程序中国

RCEP数据跨境流动规则例外条款的适用及中国应对

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四川师范大学学报（社会科学版） 2023年第5期50卷 75-83页

作者：杜玉琼罗新雨四川大学法学院四川大学“自贸区暨一带一路法律研究中心”

全球电子商务的发展离不开数据跨境流动,数据跨境流动规则已成为国际经贸协定电子商务章节中的关键条款,其中的数据例外条款构成了数据跨境流动规则的核心所在。《区域全面经济伙伴关系协定》(RCEP)作为主要由发展中国家驱动的大型区域... 详细信息

全球电子商务的发展离不开数据跨境流动,数据跨境流动规则已成为国际经贸协定电子商务章节中的关键条款,其中的数据例外条款构成了数据跨境流动规则的核心所在。《区域全面经济伙伴关系协定》(RCEP)作为主要由发展中国家驱动的大型区域贸易协定,其数据跨境流动规则中的例外条款彰显了“发展与安全兼收并蓄,更侧重国家监管”的价值追求。但是,由于RCEP数据跨境流动规则例外条款的设置存在适用条件较为宽松、关键概念表述模糊等问题,成员方在适用中必然存在不确定性和滥用的隐忧,且既有争端解决方式难以实现对例外条款的解释。对此问题的解决,WTO相关案例可提供适用原则和解释方法上的指引。中国作为RCEP的主要参与者、推动者和多边主义的维护者,应评估RCEP数据例外条款的可诉性,并以WTO案例为指引,恪守善意原则,遵循界定限制措施合理性和必要性的解释进路,以期明确RCEP数据跨境流动规则例外条款的适用,促进区域电子商务的发展。

关键词： RCEP WTO 数据跨境流动例外条款电子商务

Steric hindrance modulation of hexaazatribenzanthraquinone isomers for high-capacity and wide-temperature-range aqueous proton battery

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National Science Review 2024年第4期11卷 271-282页

作者： Mingsheng Yang Yuxin Hao Bei Wang Yan Wang Liping Zheng Rui Li Huige Ma xinyu Wang Xiaoming Jing Hongwei Li Mengxiao Li Zhihui Wang Yujie Dai Guangcun Shan Mingjun Hu Jun luo Jun Yang School of Materials Science and Engineering Beihang University Beijing Institute of Nanoenergy &Nanosystems Chinese Academy of Sciences Center on Nanoenergy Research School of Physical Science & TechnologyGuangxi University School of Chemistry and Chemical Engineering Center on Nanoenergy Research Guangxi University School of Instrumentation Science and Opto-electronics Engineering Beihang University ShenSi Lab Shenzhen Institute for Advanced StudyUniversity of Electronic Science and Technology of China

Organic materials with rich active sites are good candidates of high-capacity anodes in aqueous batteries,but commonly low utilization of active sites limits their ***,two isomers,symmetric and asymmetric hexaazatribenzanthraquinone（s-HATBAQ and a-HATBAQ）,with rich active sites have been synthesized in a controllable *** has been revealed for the first time that a sulfuric acid catalyst can facilitate the stereoselective formation of *** to the reduced steric hindrance in favor of proton insertion as well as the amorphous structure conducive to electrochemical dynamics,s-HATBAQ exhibits 1.5 times larger specific capacity than ***,the electrode of s-HATBAQ with50% reduced graphene oxide（s-HATBAQ-50%rGO） delivers a record high specific capacity of405 mAh g-1in ***,the assembled MnO2//s-HATBAQ-50%rGO aqueous proton full batteries show an exceptional cycling stability at 25℃ and can maintain ～92% capacity after1000 cycles at 0.5 A g-1at-80℃.This work demonstrates the controllable synthesis of isomers,showcases a wide-temperature-range prototype proton battery and highlights the significance of precise mole cular structure modulation in organic energy storage.

关键词： stereoisomers steric effect aqueous battery super cycling stability ultra-low temperature proton battery

Changing Trend and Influencing Factors of Rice Production Cost in China

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Asian Agricultural Research 2021年第8期13卷 17-19,24页

作者： xinyu luo School of Economics and Management Yangtze UniversityJingzhou 434023China

Rice is one of the three major food crops in *** change of its production cost is related to food security and farmers'income in *** paper analyzes the changing trend of rice production cost in China from 2009 to 2019,analyzes the factors leading to the change from the aspects of land scale,labor force structure,agricultural science and technology level,*** this basis,this paper puts forward measures and suggestions to reduce rice production cost and improve farmers'income.

关键词： Rice Production cost Scale operation Mechanization

政府研发补贴模式下企业绿色技术创新的供应链决策及合同选择

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北京化工大学学报:自然科学版 2023年第5期50卷 109-117页

作者：蔡中华罗新宇北京化工大学经济管理学院北京100029

在政府依据研发投资对企业进行补贴的情形下,建立二级动态供应链模型,考虑了消费者绿色偏好对需求及产品成本的影响,对不同供应链模式下制造商、零售商的利润以及产品绿色度等变量进行理论分析,并通过数值仿真模拟探讨了政府补贴、消费... 详细信息

在政府依据研发投资对企业进行补贴的情形下,建立二级动态供应链模型,考虑了消费者绿色偏好对需求及产品成本的影响,对不同供应链模式下制造商、零售商的利润以及产品绿色度等变量进行理论分析,并通过数值仿真模拟探讨了政府补贴、消费者绿色偏好与最优绿色度及供应链利润的关系。结果表明,政府根据研发投资进行补贴能够显著促进供应链绿色创新并提高供应链利润,供应链选择利润共享合同以及消费者提高绿色消费意识均会强化政府补贴对绿色创新的促进作用。

关键词：绿色创新绿色供应链政府补贴供应链协调

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