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The Studies of Regional Water Circulation Patterns in the Yerqiang River Basin

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Journal of Ocean University of China 2006年第4期5卷 357-362页

作者： REN Jiaguo wu-qianqian ZHENG Xilai XU Mo Key Laboratory of Marine Environmental Science and Ecology Ministry of Education Ocean University of China Qingdao 266003 P. R. China National Laboratory of Geo-hazard Prevention ＆ Geo-environment Protection Chengdu University of Technology Chengdu 610059 P.R. China

Based on the characteristic of ‘one river one oasis’ in the arid areas, the Yerqiang River Basin, which is the largest irrigated area of Xinjiang, is taken as an example in this paper, and the regional water circulation pattern is investigated through the analysis of 60 groups of isotope data in the basin. From the phreatic evaporation data analysis of different soils, we study the law of phreatic evaporation, complete the research of the main consumption path of the groundwater, and improve the assessment precision of water resources. The transformation mount of regional water resources are predicted by calculation, which provides a scientific basis for water resources assessment and allocation in arid regions, and offers a new method for the study of regional water circulation patterns.

关键词： Yerqiang River Basin water circulation transformation pattern

High-performance liquid metal electromagnetic actuator fabricated by femtosecond laser

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International Journal of Extreme Manufacturing 2024年第2期6卷 511-521页

作者： Yiyu Chen Hao wu Rui Li Shaojun Jiang Shuneng Zhou Zehang Cui Yuan Tao Xinyuan Zheng qianqian Zhang Jiawen Li Guoqiang Li Dong wu Jiaru Chu Yanlei Hu CAS Key Laboratory of Mechanical Behavior and Design of Materials Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education InstitutesDepartment of Precision Machinery and Precision InstrumentationUniversity of Science and Technology of ChinaHefei 230027People’s Republic of China Key Laboratory of Testing Technology for Manufacturing Process of Ministry of Education Southwest University of Science and TechnologyMianyang 621010People’s Republic of China Department of Mechanical Engineering The University of Hong KongHong Kong Special Administrative Region of ChinaPeople’s Republic of China

Small-scale electromagnetic soft actuators are characterized by a fast response and simplecontrol,holding prospects in the field of soft and miniaturized *** use of liquid metal(LM)to replace a rigid conductor inside soft actuators can reduce the rigidity and enhance the actuation performance and *** research efforts,challenges persist in the flexible fabrication of LM soft actuators and in the improvement of actuation *** address these challenges,we developed a fast and robust electromagnetic soft microplate actuator based on a laser-induced selective adhesion transfer *** with unprecedentedly thin LM circuit and customized low Young’s modulus silicone rubber(1.03 kPa),our actuator exhibits an excellent deformation angle(265.25?)and actuation bending angular velocity(284.66 rad·s^(-1)).Furthermore,multiple actuators have been combined to build an artificial gripper with a wide range of *** actuator presents new possibilities for designing small-scaleartificial machines and supports advancements in ultrafast soft and miniaturized robotics.

关键词： soft actuators femtosecond laser liquid metal

SRPK1 has an abnormal expression and affects the sensitivity of chemotherapeutic drugs in U251

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SRPK1 has an abnormal expression and affects the sensitivity...

Preparation and Properties of Electrospun Polyvinylidene Fluoride (PVDF)/Polyurethane (PU) Composite Nanofiber Membranes

中国解剖学会2013年年会

作者： wu qianqian Zhang Luping Huang Fei Institute of Human Anatomy Binzhou Medical University

＜正＞Serine/arginine protein kinase 1（SRPK1） can affect the apoptosis of tumor cells and angiogenesis. At present,its role in glioma remains unclear and will become a new research direction for the treatment of *** human glial cell HA and glioma cell U251 were cultured in this *** the MTT assay to induce apoptosis in the median lethal dose of cisplatin DDP,temozolomide *** RT-PCR,Western blot methods to detect the

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Journal of Donghua University(English Edition) 2019年第5期36卷 445-450页

作者： WEI Fayun CHENG Yue wu qianqian LI Ke YANG Lishuang FU Yijun ZHANG Wei ZHANG Yu College of Xinglin Nantong UniversityNantong 226019China College of Textile and Clothing Nantong UniversityNantong 226019China

Polyvinylidene fluoride(PVDF)/polyurethane(PU)composite nanofiber membranes were prepared by mixing PVDF and PU at different mass *** microstructure and the crystal structure of the composite nanofiber membranes were analyzed by scanning electron microscopy(SEM),Fourier transform infrared(FTIR)spectroscopy and X-ray diffraction(XRD).The hydrophilicity,mechanical properties and piezoelectric properties were also *** showed that when the mass ratio of PVDF to PU was 9∶1,the fiber membrane had the best microstructure,and the crystal form of PVDF changed fromαcrystal toβcrystal in the *** addition of PU improved the hydrophilicity,mechanical properties,and piezoelectric signal of the fiber *** the mass ratio of PVDF to PU was 9∶1,the tensile strength reached the peak value of(10.39±0.41)N,and the output voltage reached the maximum value of(1.98±0.12)V.

关键词： polyvinylidene fluoride(PVDF) polyurethane(PU) crystal form contact angle tensile strength piezoelectric properties

Natural variation in the cytochrome c oxidase subunit 5B OsCOX5B regulates seed vigor by altering energy production in rice

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Journal of Integrative Agriculture 2024年第9期23卷 2898-2910页

作者： Chengwei Huang Zhijuan Ji qianqian Huang Liling Peng Wenwen Li Dandan Wang Zepeng wu Jia Zhao Yongqi He Zhoufei Wang Laboratory of Seed Science and Technology/Guangdong Key Laboratory of Plant Molecular Breeding/State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources/South China Agricultural University Guangzhou 510642China National Nanfan Research Institute(Sanya) Chinese Academy of Agricultural SciencesSanya 572025 China National Rice Research Institute Hangzhou 310006China

Seed vigor is a crucial trait for the direct seeding of *** we examined the genetic regulation of seed vigor traits in rice,including germination index(GI)and germination potential(GP),using a genome-wide association study *** major quantitative trait locus,qGI6/qGP6,was identified simultaneously for both GI and *** candidate gene encoding the cytochrome c oxidase subunit 5B(OsCOX5B)was validated for qGI6/*** disruption of OsCOX5B caused the vigor traits to be significantly lower in Oscox5b mutants than in the japonica Nipponbare wild type(WT).Gene co-expression analysis revealed that OsCOX5B influences seed vigor mainly by modulating the tricarboxylic acid cycle *** glucose levels were significantly higher while the pyruvic acid and adenosine triphosphate levels were significantly lower in Oscox5b mutants than in WT during seed *** elite haplotype of OsCOX5B facilitates seed vigor by increasing its expression during seed ***,we propose that OsCOX5B is a potential target for the breeding of rice varieties with enhanced seed vigor for direct seeding.

关键词： cytochrome c oxidase natural variation rice seed vigor

ECMpy 2.0:A Python package for automated construction and analysis of enzyme-constrained models

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Synthetic and Systems Biotechnology 2024年第3期9卷 494-502页

作者： Zhitao Mao Jinhui Niu Jianxiao Zhao Yuanyuan Huang Ke wu Liyuan Yun Jirun Guan qianqian Yuan Xiaoping Liao Zhiwen Wang Hongwu Ma Biodesign Center Key Laboratory of Engineering Biology for Low-carbon ManufacturingTianjin Institute of Industrial BiotechnologyChinese Academy of SciencesTianjin300308China National Center of Technology Innovation for Synthetic Biology Tianjin300308China Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering(Ministry of Education) Tianjin UniversityTianjin300072China College of Biotechnology Tianjin University of Science and TechnologyTianjin300457China Institute of Biopharmaceutical and Health Engineering Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhenChina Tianjin Agricultural College Tianjin300384China Haihe Laboratory of Synthetic Biology Tianjin300308China

Genome-scale metabolic models(GEMs)have been widely employed to predict microorganism ***,GEMs only consider stoichiometric constraints,leading to a linear increase in simulated growth and product yields as substrate uptake rates *** divergence from experimental measurements prompted the creation of enzyme-constrained models(ecModels)for various species,successfully enhancing chemical *** upon studies that allocate macromolecule resources,we developed a Python-based workflow(ECMpy)that constructs an enzyme-constrained *** involves directly imposing an enzyme amount constraint in GEM and accounting for protein subunit composition in ***,this procedure de-mands manual collection of enzyme kinetic parameter information and subunit composition details,making it rather *** this work,we’ve enhanced the ECMpy toolbox to version 2.0,broadening its scope to automatically generate ecGEMs for a wider array of *** 2.0 automates the retrieval of enzyme kinetic parameters and employs machine learning for predicting these parameters,which significantly enhances parameter ***,ECMpy 2.0 introduces common analytical and visualization features for ecModels,rendering computational results more user ***,ECMpy 2.0 seamlessly integrates three published algorithms that exploit ecModels to uncover potential targets for metabolic *** 2.0 is available at https://***/tibbdc/ECMpy or as a pip package(https://***/project/ECMpy/).

关键词： Enzyme-constrained model Python package Automated construction Multiple analysis functions

Rational Design of a High-Performance KMnO_(4)-Fe(Ⅱ)-Si Coagulant for Dye Removal

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Journal of Donghua University(English Edition) 2021年第2期38卷 148-157页

作者： wu qianqian TANG Lipeng XIAO Feng WEI Qunshan LIU Yanbiao HUANG Manhong CHOW Christopher W K College of Environmental Science and Engineering Donghua UniversityShanghai 201620China Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection Donghua UniversityShanghai 201620China School of Water Resources and Hydropower Engineering North China Electric Power UniversityBeijing 102206China Scarce Resources and Circular Economy(ScaRCE)UniSA STEM University of South AustraliaMawson LakesSA 5095Australia

A new ternary coagulant polysilicate ferromanganese(PSFM),composed of Fe,Mn and Si,was *** coagulation performance for dye removal was investigated systematically together with the impact of several key operational *** experimental results indicate that an excellent coagulation efficiency with higher than 95%color removal and higher than 94%total organic carbon(TOC)removal can be obtained at an optimized molar ratio of Si∶Fe∶Mn(5∶5∶1).The coagulation performance of PSFM coagulant was studied comparatively with other conventional coagulants,*** aluminium chloride(PAC),Al_(2)(SO_(4))_(3)and FeCl_(3).Additionally,various characterization techniques were applied to get detailed morphological and compositional information of PSFM ***,the underlying mechanism for improved coagulant performance was proposed based on these *** results have exemplified quantitatively that PSFM coagulant exhibits a great potential as a promising material for application in various environmental fields.

关键词： ternary coagulant coagulation mechanism polysilicate ferromanganese high-performance

碱性脂肪酶固定化条件及其催化生物柴油的研究

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农业工程学报 2009年第9期25卷 254-258页

作者：吴茜茜吴克穆文侠陈侠合肥学院生物与环境工程系合肥230022

该文以改性的硅胶为载体,通过戊二醛交联固定化碱性脂肪酶,得到较佳固定化条件:当戊二醛浓度为0.8g/L,给酶量为30U/g时,酶活回收率效率达到90%以上。通过改变溶剂的种类、给酶量、含水率、底物摩尔比、甲醇的流加方式等参数,考察了脂肪... 详细信息

该文以改性的硅胶为载体,通过戊二醛交联固定化碱性脂肪酶,得到较佳固定化条件:当戊二醛浓度为0.8g/L,给酶量为30U/g时,酶活回收率效率达到90%以上。通过改变溶剂的种类、给酶量、含水率、底物摩尔比、甲醇的流加方式等参数,考察了脂肪酸和甲醇在固定化碱性脂肪酶催化下合成生物柴油的工艺条件,试验结果表明在20mL正己烷,给酶量7.5g(12U/g),脂肪酸10g,酸醇摩尔比为1︰1.2,含水率4%条件下,分3次加入甲醇,40℃反应8h,反应体系酯化率达到了82%。

关键词：脂肪酶催化生物柴油硅胶固定化

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人头盖骨微观组织结构及能量吸收机制研究

力学与实践 2019年第6期41卷 653-657页

作者：熊健吴倩倩哈尔滨工业大学复合材料与结构研究所

头盖骨对于维持生命安全至关重要。作为一种多孔夹芯结构,头盖骨由密质骨面板和松质骨芯子构成。本文通过头盖骨截面与冲击物相互作用,并基于能量守恒定律分析了人头盖骨能量吸收随着冲击速度的变化规律,给出了头盖骨在不同冲击速度下... 详细信息

头盖骨对于维持生命安全至关重要。作为一种多孔夹芯结构,头盖骨由密质骨面板和松质骨芯子构成。本文通过头盖骨截面与冲击物相互作用,并基于能量守恒定律分析了人头盖骨能量吸收随着冲击速度的变化规律,给出了头盖骨在不同冲击速度下的破坏形貌图。通过头盖骨截面的失效面积,反映出结构的吸能特性。

关键词：多孔结构密质骨松质骨冲击速度能量吸收