检索结果-南通市图书馆

Nano Research 2022年第3期15卷 2083-2091页

作者： Sheng Wen xin gu Xiangwei Ding Li Zhang Pengcheng Dai Liangjun Li Dandan Liu Wenchao Zhang Xuebo Zhao Zaiping guo College of New Energy State Key Laboratory of Heavy Oil ProcessingChina University of Petroleum(East China)Qingdao 266580China Institute of Environmental Engineering School of Metallurgy and EnvironmentCentral South UniversityChangsha 410083China Institute for Superconducting and Electronic Materials University of WollongongWollongongNSW 2522Australia School of Chemical Engineering&Advanced Materials The University of AdelaideAdelaideSA 5005Australia

Conversion/alloying anode materials exhibiting high K storage capacities suffer from large volume variations and unstable electrode/electrolyte interfaces upon ***,taking SnS/reduced graphene oxide(SnS/rGO)anodes as an example,the electrochemical performance of SnS/rGO could significantly be improved via employing potassium bis(fluorosulfonyl)imide(KFSI)salt in electrolytes and ultrathin TiO_(2) ***-rich inorganic layer was demonstrated to help form robust SEI layer,which could suppress the side reactions to increase the Coulombic *** formed potassiated K_(x)TiO_(2) coating layer was constructed to boost charge transfer capability and K-ion diffusion *** as-prepared SnS/rGO@TiO_(2)-20 electrode in KFSI electrolyte delivers the high CE of 99.1%and 424 mAh·g^(−1) after 200 cycles with an ultrahigh capacity retention of 98.5%.

关键词： potassium-ion batteries SnS/rGO nanocomposite salt chemistry ultrathin TiO_(2)coating ion diffusion kinetics

Effect of β Radiation on Bcl-2 and Bax Expressions in Benign Prostate Hyperplasia Tissues

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 2008年第4期24卷 501-504页

作者： MA Qing-jie GAO Shi ZHAO Jie gu xin-quan CAI Shan-yu ZHAO guo-qing Department of Nuclear Medicine China-Japan Union Hospital Jilin University Changchun 130033 P. R. China Isotope Division China Institute of Atomic Energy Beijing 102413 P. R. China

The authors chose specimens from nine normal prostate tissues（NP group）, 15 benign prostate hyperplasia（BPH） prostates（BPH group）, and 35 BPH prostates that had been treated＇with ^90Sr/^90Y Prostatic Hyperplasia Applicator（exposure group）. The expressions of bcl-2 and bax in stroma and epithelia of prostate tissues were demonstrated by means of immunohistochemical staining, and the staining positive rate was semiquantatively determined, so as to observe the expression of bcl-2 and bax genes in the prostate tissues of normal individuals and BPH patients, before and after fl radiation, and to evaluate the influence of fl radiation on bcl-2 and bax expressions. The expressions of gene bcl-2 in the prostate epithelia of NP and BPH are significantly higher than those in the prostate stroma（P〈0.01）. However, the expressions of bcl-2 in the prostate epithelia and stroma of the BPH group are obviously higher than those in the NP group（P〈0.01）. The expression of gene bax in the prostate epithelia of the NP group is higher than that in the BPH group（P〈0.05）. However, bcl-2 expressions in the prostate epithelia and stroma of the BPH group are significantly higher than the bax expressions（P〈0.01）. Compared with those of the NP group, the expressions of bcl-2 in the prostate epithelia and stroma of the exposure group decrease remarkably, even as the expressions of the bax notably increase（P〈0.01）. Thus, the administration of β radiation can remarkably affect bcl-2 and bax gene expressions, to regulate cell apoptosis, in the prostate tissues of BPH.

关键词： Benign prostate hyperplasia β Radiation Apoptosis

Prediction of high frequency resistance in polymer electrolyte membrane fuel cells using long short term memory based model

在线全文

学校读者我要写书评

暂无评论

Energy and AI 2021年第1期3卷 115-125页

作者： Tong Lin Leiming Hu Willetta Wisely xin gu Jun Cai Shawn Litster Levent Burak Kara Carnegie Mellon University PittsburghPA 15213USA Shanghai Hydrogen Propulsion Technology Co.Ltd Innovation ParkLane 56Antuo RdJiadingShanghai 201800P.R.China

High-frequency resistance(HFR)is a critical quantity strongly related to a fuel cell system’s *** is beneficial to estimate the fuel cell system’s HFR from the measurable operating conditions without resorting to costly HFR measurement *** this study,we propose a data-driven approach for a real-time prediction of ***,we use a long short-term memory(LSTM)based machine learning model that takes into account both the current and past states of the fuel cell,as characterized through a set of *** sensor signals form the input to the *** data is experimentally collected from a vehicle lab that operates a 100 kW automotive fuel cell stack running on an automotive-scale test *** current results indicate that our prediction model achieves high accuracy HFR predictions and outperforms other frequently used regression *** also study the effect of the extracted features generated by our LSTM *** study finds that only very few dimensions of the extracted feature are influential in HFR *** study highlights the potential to monitor HFR condition accurately and timely on a car.

关键词： PEM fuel cell High frequency resistance Dynamic system prediction Machine learning LSTM

Design and fabrication of a new fluorescence enhancement system of silver nanoparticles-decorated aligned silver nanowires

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rare Metals 2019年第12期38卷 1178-1186页

作者： Jian-Chao Wang Hong-Sheng Luo Ming-Hai Zhang Xi-Hong Zu Jie Zhang Yu-xin gu guo-Bin Yi School of Chemical Engineering and Light Industry Guangdong University of TechnologyGuangzhou 510006China guangdong Provincial Key Laboratory of Advanced Coatings Research and Development China National Electric Apparatus Research Institute Co.Ltd.Guangzhou 510300China

A new substrate,aligned Ag nanowires decorated with silver nanoparticle composite structure(AgNWs@AgNPs),was fabricated to investigate metalenhanced fluorescence(MEF) and its *** new composite structure was fabricated via a three-phase interface assembly method followed by SnCl2 sensitization and AgNO3 reduction *** size and distribution of the nanoparticles on silver nanowires increased with the sensitization and reduction *** formation of AgNPs on the surfaces of AgNWs was confirmed by multiple characterization methods including scanning electron microscopy(SEM),transmission electron microscope(TEM),atomic force microscopy(AFM) and X-ray diffraction(XRD).The results show that the fluorescence intensity of the poly(3-hexylthiophene)(P3HT) on the composite structure was greatly enhanced compared with that on bare glass substrate,and the intensity increased with the increase in particle sizes and *** mechanism was basedo n the increase in excitation rate and the radiation decay *** new type of substrate could serve as a good and efficient MEF substrate for high-performance fluorescence-based devices.

关键词： Fluorescence enhancement Aligned Ag nanowires Self-assembly Mechanism

Effects of Micronutrient Niacin on Treatment Efficiency of Textile Wastewater

在线全文

学校读者我要写书评

暂无评论

Wuhan University Journal of Natural Sciences 2006年第3期11卷 737-741页

作者： LIANG Wei HU Hongying gu xin CHE Yuling WANG Hui guO Yufeng SONG Yudong State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 Hubei China Environment Simulation and Pollution Control State Key Joint Laboratory Department of Environmental Science and EngineeringTsinghua University Beijing 100084 China

Textile wastewater is well known as one of the wastewaters to be most difficultly treated. The effects of niacin on textile wastewater treatment efficiency were studied by continuous addition of 1.0 mg·L^-1 niacin, the physical and chemical indexes of the water samples, such as COD, ammonia and dehydrogenase activities, were analyzed every day with standard methods, and obvious improvement in wastewater treatment performance was achieved. The exact results showed that：① Niacin could improve the COD removal efficiency signifcantly with removal rates being 1.31 times as to those of the control system; ② under this experimental condition, addition of niacin had almost no effect on the removal of ammonia;③ Addition of niacin could improve the activity of dehydrogenase by 130 %. It proved that the biological treatment performance of textile wastewater treatment system probably could be optimized through micronutrient niacin supplement.

关键词： textile wastewater biological treatment niacin, COD dehydrogenase activities

Stereoselective Synthesis of α-Aminonitril on Glucose Templates

在线全文

学校读者我要写书评

暂无评论

有机化学 2003年第z1期23卷 90-92页

作者： ZHANG Peng-Fei gu Yi-xin guO Jun-Li CHEN Min Department of Chemistry Hangzhou Teachers College Zhejiang 310036 Department of Chemistry Hangzhou Teachers College Zhejiang 310036 Department of Chemistry Hangzhou Teachers College Zhejiang 310036 Department of Chemistry Hangzhou Teachers College Zhejiang 310036

　　Both proteinogenic and non proteinogenic α-amino acids are of particular interest as constituents of peptide factors, peptidomimetics and antibiotics for the construction of modern selective drugs. [1] Furthemore, α-amino acid derivatives are interesting building units for chiral-pool syntheses of enantiomerically pure natural products. [2] Numerous efforts in modern organic synthesis are centered on the synthesis of enantiomerically pure α-amino acids. [3] During the past three decades efficient methods of asymmetric synthesis of α-amino acids have been developed; most of them are based on electrophilic transformations of organometallic intermediates. [4] Using the concept that the chirality of the carbohydrates can be exploited for diastereoselective reactions, Kunz and his cooperator had developed a Strecker synthesis with glycosyl amines as chiral auxiliaries. [5] ……

关键词： asymmetric synthesis organic synthesis natural products methods of

THE LINEAR HOMOGENEOUS FLOW MODEL FOR TWO-PHASE FLOW INSTABILITY IN BOILING CHANNELS

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Hydrodynamics 2002年第2期14卷 106-111页

作者： Zhou Yun-long, Sun Bin, gu xin, Liang Qiang Northeast China Institute of Electric Power Engineering, Jilin 132012, China Northeast China Institute of Electric Power Engineering Jilin 132012 China

This paper presents liner homogeneous model describing two-phase flow instability. Dimensionless parameter η was derived by using the linear homogeneous model. Using parameter η the stability of a system could b... 详细信息

关键词： evaporated tubes steam-liquid two-phase flow homogeneous model

OmicsSuite: a customized and pipelined suite for analysis and visualization of multi-omics big data

在线全文

学校读者我要写书评

暂无评论

Horticulture Research 2023年第11期10卷 13-26页

作者： Ben-Ben Miao Wei Dong Yi-xin gu Zhao-Fang Han Xuan Luo Cai-Huan Ke Wei-Wei You State Key Laboratory of Marine Environmental Science College of Ocean and Earth SciencesXiamen UniversityXiamen 361102FujianChina Hospital of Stomatology Guanghua School of StomatologyGuangdong Provincial Key Laboratory of StomatologySun Yat-Sen UniversityGuangzhou 510055GuangdongChina College of Fisheries Guangdong Ocean UniversityZhanjiang 524088GuangdongChina Fujian Institute for Sustainable Oceans Xiamen UniversityXiamen 361102FujianChina

With the advancements in high-throughput sequencing technologies such as Illumina,PacBio,and 10X Genomics platforms,and gas/liquid chromatography-mass spectrometry,large volumes of biological data in multiple formats can now be obtained through multi-omics *** is constantly evolving and seeking breakthroughs to solve multi-omics problems;however,it is challenging for most experimental biologists to analyse data using command-line interfaces,coding,and *** on experience with multi-omics,we have developed OmicsSuite,a desktop suite that comprehensively integrates statistics and multi-omics analysis and *** suite has 175 sub-applications in 12 categories,including Sequence,Statistics,Algorithm,Genomics,Transcriptomics,Enrichment,Proteomics,Metabolomics,Clinical,Microorganism,Single Cell,and Table *** created the user interface with Sequence View,Table View,and intelligent components based on JavaFX and the popular Shiny *** multi-omics analysis functions were developed based on BioJava and 300+packages provided by the R CRAN and Bioconductor communities,and it encompasses over 3000 adjustable parameter *** can directly read multi-omics raw data in FastA,FastQ,Mutation Annotation Format,mzML,Matrix,and HDF5 formats,and the programs emphasize data transfer directions and pipeline analysis *** can produce pre-publication images and tables,allowing users to focus on biological *** offersmulti-omics step-by-step workflows that can be easily applied to horticultural plant breeding and molecular mechanism studies in *** enables researchers to freely explore the molecular information contained in multi-omics big data(Source:https://***/OmicsSuite/,Website:https://***,v1.3.9).

关键词： breakthrough tables seeking

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

合作创新的领导权博弈与利益协调研究

系统工程理论与实践 2018年第12期38卷 3109-3123页

作者：张华顾新四川大学商学院成都610064 成都市软创智业研究会成都610023 肇庆学院经济与管理学院肇庆526061

研究了合作创新的权力结构对知识创造及创新绩效的作用机理.考虑上下游企业合作创新的知识共享、创造及利益分配过程,界定权力均衡(LS)、上游企业领导(UL)、下游企业领导(DL)等领导权博弈模型并进行创新效率分析.研究发现:权力结构影响... 详细信息

研究了合作创新的权力结构对知识创造及创新绩效的作用机理.考虑上下游企业合作创新的知识共享、创造及利益分配过程,界定权力均衡(LS)、上游企业领导(UL)、下游企业领导(DL)等领导权博弈模型并进行创新效率分析.研究发现:权力结构影响合作创新效率,LS模式下企业的知识产出与供应链利润优于UL、DL模式;企业的知识溢出既可提高合作伙伴的知识产出与创新利润,也存在知识外溢损失风险,UL、DL模式下领导者(跟随者)知识溢出与其创新利润正(负)相关,LS模式下企业的知识溢出与其创新利润呈"倒U型"关系;创新贡献率是引起合作利益冲突的主要原因,使用Nash协商模型检验了通过协商机制解决利益协调问题的有效性,比较发现LS模式的利益协调效果优于UL、DL模式.最后,讨论了研究的管理启示.

关键词：合作创新权力结构知识溢出 Nash协商模型

From Her Hands!Young Vlogger Uses Picturesque Videos to Tell Stories of China

在线全文

学校读者我要写书评

暂无评论

Women of China 2020年第2期 48-50页

作者： gu xin ***

Picture it:A young woman,dressed m traditional Chinese attire,made from hemp,picking flowers in a field so she can make a natural blush for her ***,imagine that young woman assembling a sofa from bamboo,making soy sauce from scratch or cooking various delicious Chinese *** might seem surreal,but that young woman does *** name?Li Ziqi.

关键词：视频记录田园生活李子酱油美食沙发黄豆烹制