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Urban water system theory and its model development and application

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Science China Earth Sciences 2024年第3期67卷 704-724页

作者： Jun XIA Yongyong zhang Dunxian SHE Shiyan zhang Jun YANG mingquan LV Xiang zhang Anqi LUO Shengjun WU Yang LIU Key Laboratory of Water Cycle and Related Land Surface Processes Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China State Key Laboratory of Water Resources&Hydropower Engineering Sciences Wuhan UniversityWuhan 430072China Aquatic Eco Health Group Key Laboratory of Urban Environment and HealthInstitute of Urban EnvironmentFujian Key Laboratory of Watershed EcologyChinese Academy of SciencesXiamen 361021China Chongqing Institute of Green and Intelligent Technology Chinese Academy of SciencesChongqing 400714China

The urban water system theory is an extension of the basin water system science on an urban scale, providing a new systematic solution for the unbalanced human-water relationship and severe water challenges, such as waterlogging, black and odorous water, and ecological degradation caused by urbanization. Most existing studies on urban water systems have focused on individual water cycle processes linked with water supply and sewage treatment plants, but mutual feedback between the water cycle and its associated material circulation and water ecology, as well as human processes, still needs further exploration. In this paper, the concept, theory, and technical methodology of the urban water system were developed based on the water cycle and basin water system science. The Urban Water System 5.0(UWS 5.0) model was developed by integrating the Time Variant Gain rainfall-runoff Model with Urban water system(TVGM_Urban) in different underlying surface conditions for analyzing the natural-social water cycle processes and their associated water environmental and ecological processes and the influence of multiscale sponge measures. Herein, five major simulation functions were realized: rainfall-runoff-nonpoint source pollutant load,water and pollutant transportations through the drainage network system, terminal regulation and purification, socioeconomic water cycle, and water system assessment and regulation. The location for the case study used in this paper was Wuhan City. The findings showed that the entire urban water system should consider the built-up area and its associated rivers and lakes as the research object and explore the integrations among the urban natural-social water cycle and river regulations inside and outside of the city as well as the effects of socioeconomic development and sponge measures on the water quantity-quality-ecology processes. The UWS 5.0 model efficiently simulated the urban rainfall-runoff process, total nitrogen(TN) and total phosphoru

关键词： Urban water system Human-water relationship Water issue Green development Theoretical basis Mathematical model

Malignant transformation by oncogenic K-ras requires IDH2-mediated reductive carboxylation to promote glutamine utilization

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Cancer Communications 2023年第2期43卷 285-289页

作者： Rui Liu Panpan Liu Huichang Bi Jianhua Ling Huiqin zhang mingquan zhang Yumin Hu Paul J Chiao Peng Huang Jinyun Liu Sun Yat-sen University Cancer Center State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouGuangdong 510060P.R.China School of Materials Science and Engineering Sun Yat-sen UniversityGuangzhouGuangdong 510275P.R.China School of Pharmaceutical Sciences Southern Medical UniversityGuangzhouGuangdong 510515P.R.China Department of Molecular and Cellular Oncology The University of Texas MD Anderson Cancer CenterHoustonTexas 77030USA Metabolic Research Platform Center for Precision MedicineZhongshan School of MedicineSun Yat-sen UniversityGuangzhouGuangdong 510080P.R.China

Dear Editor,Oncogenic K-ras mutation plays a major role in malignant transformation and induces significant alterations in cancer cell metabolism[1–4].However,the major molecular players mediating metabolic alterations during K-ras-driven cancer development remain *** observations that tumorigenesis often requires multiple hits suggest that K-ras mutation likely needs the coordination of other molecular events that enable adaptive cellular metabolism for a full malignant *** on our previous study on the impact of K-ras onmitochondrial metabolism[1,5]and our recent findings that mitochondrial isocitrate dehydrogenase 2(IDH2)could promote the“reverse”flow of the tricarboxylic acid(TCA)cycle fromα-KG to isocitrate and enhance the survival and proliferation of acute myeloid leukemia cells[6],we investigated the potential role of IDH2 in metabolic adaptation during K-ras-driven tumorigenesis.

关键词： metabolism alterations cancer

Ferroptosis mechanism and Alzheimer's disease

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Neural Regeneration Research 2024年第8期19卷 1741-1750页

作者： Lina Feng Jingyi Sun Ling Xia Qiang Shi Yajun Hou Lili zhang mingquan Li Cundong Fan Baoliang Sun Shandong Key Laboratory of TCM Multi-Target Intervention and Disease Control the Second Affiliated Hospital of Shandong First Medical UniversityTaianShandong ProvinceChina Department of Internal Medicine Taian Traffic HospitalTaianShandong ProvinceChina Department of Neurology the Third Affiliated Clinical Hospital of Changchun University of Chinese MedicineChangchunJilin ProvinceChina

Regulated cell death is a genetically determined form of programmed cell death that commonly occurs during the development of living *** process plays a crucial role in modulating homeostasis and is evolutionarily conserved across a diverse range of living *** is a classic regulatory mode of cell *** studies of regulatory cell death in Alzheimer’s disease have yielded increasing evidence that fe rroptosis is closely related to the occurrence,development,and prognosis of Alzheimer’s *** review summarizes the molecular mechanisms of ferroptosis and recent research advances in the role of ferro ptosis in Alzheimer’s *** findings are expected to serve as a theoretical and experimental foundation for clinical research and targeted therapy for Alzheimer’s disease.

关键词： Alzheimer’s disease apolipoprotein E Fe^(2+) ferroptosis glial cell glutathione peroxidase 4 imbalance in iron homeostasis lipid peroxidation regulated cell death system Xc^(-)

Fabricating bio-inspired high impact resistance carbon nanotube network films for multi-protection under an extreme environment

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Nano Research 2024年第9期17卷 7793-7802页

作者： mingquan Zhu Kailu Xiao Wei zhang Xudong Lei Yunxiang Bai Shijun Wang Peng zhang Feng Gao Congying Wang Wenqiang Xu Huiyong Li Xianqian Wu Chao Wang Hui zhang Luqi Liu Zhong zhang CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Department of Materials Science and Engineering Texas A&M UniversityCollege StationTexas 77840USA Institute of Mechanics Chinese Academy of SciencesBeijing 100190China School of Astronautics Harbin Institute of TechnologyHarbin150001China CAS Key Laboratory of Mechanical Behavior and Design of Materials Department of Modern MechanicsUniversity of Science and Technology of ChinaHefei 230027China

The fabrication of light-weight,highly impact-resistant,and energy-absorbent materials is urgently demanded in many facets of the society from body armor to aerospace engineering,especially under an extreme *** nanotubes(CNTs),one of the strongest and toughest materials ever found,also have good conductivity,chemical stability,and thermal stability,etc,making them a competitive candidate as building blocks to help achieve the above *** this work,a kind of CNT network was prepared by using chlorosulfonic acid(CSA)to release the internal stress of super-aligned carbon nanotube films(SA-CNTF)and dendritic polyamide amine(PAMAM)to further introduce multiple hydrogen bonds and interlocking *** fabricated bioinspired carbon nanotube network films(PAMAM@C-CNTF)have a high toughness of 45.97 MJ/m3,showing an increase of 420%compared to neat *** importantly,the anti-impact performance of the films(e.g.,with a maximum specific energy absorption of 1.40 MJ/kg under 80-100 m/s projectile impact)is superior to that of conventional protective materials from steel and Kevlar fiber,and also exceeds that of any other reported carbon-based *** hierarchical energy dissipation mechanism was further revealed through experiment and *** functions including intelligent heating/anti-icing,ultraviolet protection,as well as electromagnetic interference shielding properties make these network films have great potential in practical multi-protection applications,especially under an extreme environment.

关键词： carbon nanotubes composites mechanical properties multi-function

Carbon nanotube films with ultrahigh thermal-shock and thermalshock-fatigue resistance characterized by ultra-fast ascending shock testing

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Nano Research 2024年第8期17卷 6777-6784页

作者： mingquan Zhu Shijun Wang Yunxiang Bai Feng Gao Zhenxing Zhu Congying Wang Peng zhang Hao Jin Hui zhang Luqi Liu Zhiping Xu Xinghong zhang Fei Wei Zhong zhang CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China Department of Engineering Mechanics Tsinghua UniversityBeijing 100084China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Center for Composite Materials and StructuresHarbin Institute of TechnologyHarbin 150001China CAS Key Laboratory of Mechanical Behavior and Design of Materials Department of Modern MechanicsUniversity of Science and Technology of ChinaHefei 230027China

The exploration of material failure behavior not only involves defining its limits and underlying mechanisms but also entails devising strategies for improvement and protection in extreme ***'ve pioneered an advanced multi-scale,high-speed ascending thermal shock testing platform capable of inducing unprecedented heat shocks at rates surpassing 105℃/*** meticulous examination of the thermal shock responses of carbon nanotube(CNT)films,we've achieved remarkable *** employing an innovative macro-scale synchronous tightening and relaxing approach,we've attained a critical temperature differential in CNT films that exceeds an exceptional 2500℃—surpassing any previously reported metric for highperformance,thermal-shock-resistant ***,these samples have demonstrated exceptional resilience,retaining virtually unchanged strength even after enduring 10,000 thermal shock cycles at temperatures exceeding 1000℃.Furthermore,our research has revealed a novel thermal shock/fatigue failure mechanism that fundamentally diverges from conventional theories centered on thermal stress.

关键词： carbon nanotubes failure behavior thermal shock characterization

基于B/S架构的矿井提升系统检修信息化管理系统研究与应用

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矿山机械 2024年第8期52卷 28-33页

作者：殷鹏张明泉朱发和王晓东何贞志钱志伟王浩然周坪淮北矿业股份有限公司安徽淮北235000 江苏师范大学机电工程学院江苏徐州221116 中国矿业大学机电工程学院江苏徐州221116

针对矿井提升系统检修工作的特点,设计并开发了一种检修信息化管理系统,包括移动端APP和Web端两部分,系统采用B/S架构,实现了检修数据的快速准确采集、存储、管理和分析,提高了检修效率和数据安全性。通过对矿井提升系统的工况分析,设... 详细信息

针对矿井提升系统检修工作的特点,设计并开发了一种检修信息化管理系统,包括移动端APP和Web端两部分,系统采用B/S架构,实现了检修数据的快速准确采集、存储、管理和分析,提高了检修效率和数据安全性。通过对矿井提升系统的工况分析,设计了合理的数据库结构和数据表,开发了友好的用户客户端界面,并在实际煤矿现场进行了应用测试,取得了良好的效果。

关键词：矿井提升系统检修信息化管理 B/S架构移动端开发 Web端开发

Properties and Benefits of Biomass Briquetting of Macrophytes in Nansi Lake

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Properties and Benefits of Biomass Briquetting of Macrophyte...

中国材料大会2012

作者： Ling Gong Zhenyu Wang mingquan zhang Fengmin Li College of Environmental Science and Engineering Ocean University of China

ISBN: (纸本)9783037856062;3037856068

In order to provide a new technique for macrophytes use, this study evaluated the effect of biomass content on properties of biomass briquetting. Take lime as the binder, the best addition of biomass was 45%. In such case the drop strength of giant reed and reed briquetting reached maximum 55% and 74% respectively, and water impermeability reached minimum 15% and 7% respectively. Calorific value of biomass briquetting was between 11.1 MJ/kg and 14.9 MJ/kg and ash content was between 38.6% and 45.5%. Take giant reed briquetting as the example, 25% of money could be saved if briquetting replaced coal and people in Nansi Lake would get $159,333,333 a year. Also biomass briquetting could bring some environmental benefit including purifying water, slowing the greenhouse problems and acid rain. This study could provide a support for wetland restoration of the ecosystem, water quality, and the improvement of the economic benefits.

关键词： Macrophytes Briquetting Economic benefit Environmental benefit.

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面向液力变矩器负载的泵轮动态转矩估计模型

同济大学学报（自然科学版） 2015年第8期43卷 1219-1225页

作者：王安麟章明犬郭威同济大学机械与能源工程学院上海201804

为解决传统液力变矩器泵轮转矩静态模型与其实际载荷特征的非关联性问题,实现液力变矩器在初始配置设计中与发动机的动态性能匹配,提出面向液力变矩器负载特征的泵轮动态转矩估计模型.在对现有液力变矩器模型分析的基础上,得出一元束流... 详细信息

为解决传统液力变矩器泵轮转矩静态模型与其实际载荷特征的非关联性问题,实现液力变矩器在初始配置设计中与发动机的动态性能匹配,提出面向液力变矩器负载特征的泵轮动态转矩估计模型.在对现有液力变矩器模型分析的基础上,得出一元束流理论模型比质量弹簧阻尼系统模型更全面,其泵轮动态转矩考虑了液力变矩器的载荷特征,以此提出液力变矩器泵轮转矩模型的载荷波动项概念;通过基于控制变量法的载荷波动项解析,与全面流体动力学仿真试验结果的比较,证明了面向液力变矩器负载特征的泵轮动态转矩估计模型的有效性.该模型对液力变矩器在关联整机载荷特征的动态初始配置设计中具有较好的指导作用.

关键词：液力变矩器一元束流理论泵轮动态转矩流体动力学仿真

Modulation doping of p-type Cu_(12)Sb_(4)S_(13)toward improving thermoelectric performance

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Journal of Materials Science & Technology 2024年第4期171卷 71-79页

作者： Khak Ho Lim mingquan Li Yu zhang Yue Wu Qimin Zhou Qingyue Wang Xuan Yang Pingwei Liu Wen-Jun Wang Ka Wai Wong Ka Ming Ng Yu Liu Andreu Cabot Institute of Zhejiang University-Quzhou Quzhou 324000China College of Chemical and Biological Engineering Zhejiang UniversityHangzhou 310007China School of Chemistry and Chemical Engineering Hefei University of TechnologyHefei 230009China Materials Research Institute The Pennsylvania State UniversityUniversity ParkPA 16802USA Ostia Technologies Limited United Kingdom Department of Chemical and Biological Engineering The Hong Kong University of Science and TechnologyClear Water BayHong KongChina ICREA Pg.Lluis Companys 23Barcelona 08010Spain Catalonia Energy Research Institute-IREC Sant Adria del BesosBarcelona 08930Spain

The commercial viability of thermoelectric(TE)devices relies heavily on two factors:cost reduction and efficiency *** this study,we first produce p-type Cu_(12)Sb_(4)S_(16-x)(x=0,3,4)using a low-temperature bottom-up approach and demonstrate Cu_(12)Sb_(4)S_(13)to show the best TE performance among the three tested ***,the TE energy conversion efficiency of Cu_(12)Sb_(4)S_(13)is further enhanced by optimizing its electronic band structure through the incorporation of small amounts of *** an optimal Te content of 5 mol%,more than a twofold increase in the TE figure of merit(zT)is *** gain insight into the mechanism of improvement on the transport properties of the mate-rial,we compare the interphase transport mechanism by incorporating nanodomains of different metals(Ag and Cu)into the Cu_(12)Sb_(4)S_(13)*** improved electrical conductivity obtained with Cu_(12)Sb_(4)S_(13)-Te nanocomposites is attributed to a charge flooding of the Cu_(12)Sb_(4)S_(13)*** contrast,excessive down-ward band-bending at the interphases of Ag/Cu metal-semiconductor drastically reduces the electrical ***,a weighted mobility(μw)analysis shows a dominant thermal activation of carri-ers in Cu_(12)Sb_(4)S_(13)-Te *** this material,a strong decrease in lattice thermal conductivity is also found,which is associated with a phonon-carrier scattering *** work shows the impor-tance of proper band-engineering in TE nanocomposites to decouple electrical and thermal transport to enhance TE performance,and the efficacy ofμw for electrical and thermal transport analysis.

关键词： Modulation doping Thermoelectric Interphase transport Charge flooding Phonon-carrier scattering