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Comparison of two reliability models for performance degradation analysis

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航空动力学报 2015年第7期30卷 1632-1637页

作者： WANG Zhi-hua ZANG Guang-kui zhang yong-bo FU Hui-min Research Center of Small Sample Technology Beijing University of Aeronautics and Astronautics

In order to investigate the general reliability assessment methods based on performance degradation data,two commonly used stochastic process approaches,bilinear process method and random-effect model were *** procedure and effectiveness of these two methodologies were studied and ***,the two approaches were illustrated through practical *** residual plots and the 10th percentile curves of the two methods were presented to demonstrate the comparative *** randomeffect model yielded more volatile residuals and a lower and unsafe 10th percentile *** the bilinear process model can be concluded to derive more reasonable results due to its one-stage estimation property.

关键词： degradation analysis reliability assessment stochastic process bilinear independent increment process random-effect model

Effects of cathode potentials and nitrate concentrations on dissimilatory nitrate reductions by Pseudomonas alcaliphila in bioelectrochemical systems

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Journal of Environmental Sciences 2014年第4期26卷 885-891页

作者： Wenjie zhang Yao zhang Wentao Su yong Jiang min Su Ping Gao Daping Li College of Life Sciences Sichuan University Key Laboratory of Environmental and Applied Microbiology Chengdu Institute of Biology Chinese Academy of Sciences Environmental Microbiology Key Laboratory of Sichuan Province

The effects of cathode potentials and initial nitrate concentrations on nitrate reduction in bio- electrochemical systems （BESs） were reported. These factors could partition nitrate reduction between denitrification and dissimilatory nitrate reduction to ammonium （DNRA）. Pseudomonas alcaliphilastrain MBR utilized an electrode as the sole electron donor and nitrate as the sole electron acceptor. When the cathode potential was set from -0.3 to -I.1 V （vs. Ag/AgC1） at an initial nitrate concentration of 100 mg NO^-N/L, the DNRA electron recovery increased from （10.76 ± 1.6）% to （35.06 ± 0.99）%; the denitrification electron recovery decreased from （63.42 ± 1,32）% to （44.33 ± 1.92）%. When the initial nitrate concentration increased from （29.09 ± 0.24） to （490.97 ± 3.49） mg NO3-N/L at the same potential （-0.9 V）, denitrification electron recovery increased from （5.88 ± 1.08）% to （50.19 ±2.59）%; the DNRA electron recovery declined from （48.79 ±1.32）% to （16.02 ± 1.41）%. The prevalence of DNRA occurred at high ratios of electron donors to acceptors in the BESs and denitrification prevailed against DNRA under a lower ratio of electron donors to acceptors. These results had a potential application value of regulating the transformation of nitrate to N2 or ammonium in BESs for nitrate removal.

关键词： bioelectrochemical systems cathode potential Pseudomonas alcaliphila MBR denitrification dissimilatory nitrate reduction

Study on the reactions of azo compounds with acyl halides mediated by Sm/TiCl_4

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2006年第3期7卷 198-201页

作者： LI Xue zhang yong-min Department of Chemistry Zhefiang University Hangzhou 310028 China State Key Laboratory of Organometallic Chemistry Chinese Academy of Sciences Shanghai 200032 China

Amides can be obtained in good to excellent yield by Sm/TiCl4 mediated reductive cleavage of N=N bond in azo compounds and successive acylation in one pot. It offers an alternative method for the synthesis of amides f... 详细信息

关键词： Azo compounds Reduction Amides Sm/TiCl4

Flow-accelerated corrosion behavior of 13Cr stainless steel in a wet gas environment containing CO_2

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International Journal of minerals,Metallurgy and Materials 2018年第7期25卷 779-787页

作者： yong Li min-dong Chen Jian-kuan Li Long-fei Song Xin zhang Zhi-yong Liu Corrosion and Protection Centre Key Laboratory for Corrosion and Protection（MOE）National Environmental Corrosion Platform（NECP）University of Science and Technology BeijingBeijing 100083China Nuclear and Radiation Safety Center Ministry of Environmental Protection of P.R.ChinaBeijing 100082China

This work investigated the flow-accelerated corrosion （FAC） behavior of 13Cr in a wet CO2-containing environment at different flowing gas velocities mid impinging mlgles, with the natural-gas pipeline environment simulated by a self-assembled impingement jet sys- tem. Surface molphology determination, electrochemical measurements, mid hydromechaziics numerical analysis were cmlied out to study the FAC behavior. The results demonstrate that pitting corrosion was the primary mode of corrosion in 13Cr stainless steel. High-flow-rate gas destroyed the passive film mid decreased the pitting potential, resulting in more serious corrosion. The corrosion degree witk various im- pact mlgles showed the following order： 90~ 〉 60~ 〉 45~. The shear force and the electrolyte from the flowing gas were concluded to be the determinm^t factors of FAC, whereas the shear force was the main factor responsible for destroying the passive film.

关键词： flow-accelerated corrosion jet loop flowing velocity impact magle C02

基于密度泛函理论研究Ag-Co团簇的结构、电子和光学性能

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原子与分子物理学报 2025年第2期42卷 63-69页

作者：李维银尚瑞咏王春勇张永莉北方民族大学电气信息工程学院物理与光电信息功能材料重点实验室微电子与固体电子器件研究中心银川750021

基于密度泛函理论研究了7个原子Ag-Co团簇结构的稳定性、电子和光学性能.研究结果表明,7个原子Ag-Co团簇的最稳定结构都是十面体结构,Co原子数量较少时,Co原子主要占据十面体的轴向位,Ag原子主要占据赤道位,随着Co原子数的增加,Co原子... 详细信息

基于密度泛函理论研究了7个原子Ag-Co团簇结构的稳定性、电子和光学性能.研究结果表明,7个原子Ag-Co团簇的最稳定结构都是十面体结构,Co原子数量较少时,Co原子主要占据十面体的轴向位,Ag原子主要占据赤道位,随着Co原子数的增加,Co原子逐渐替换了赤道位上的Ag原子.当Co原子数增加时,Ag-Co团簇的垂直电离势、垂直电子亲能和最高占据轨道与最低未占据轨道之间的能隙整体上都呈现出下降趋势,表明电子稳定性降低;Ag-Co团簇的吸收光谱整体出现了红移,吸收峰的强度逐渐减弱,吸收谱的宽度变窄.

关键词：银钴团簇几何结构电子性能光学性能

多维视野中的钱冠连后语言哲学思想——第五届语言哲学高层论坛暨钱冠连先生学术思想研讨会综述

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外语学刊 2025年第1期 119-119页

作者：霍永寿张敏广东外语外贸大学英文学院广州510420

2024年8月27日,中国英汉语比较研究会中西语言哲学专业委员会创会及首任会长钱冠连先生在广州离世。12月7日,第五届语言哲学高层论坛暨钱冠连先生学术思想研讨会在广东外语外贸大学成功举办。会议由中国英汉语比较研究会中西语言哲学专... 详细信息

2024年8月27日,中国英汉语比较研究会中西语言哲学专业委员会创会及首任会长钱冠连先生在广州离世。12月7日,第五届语言哲学高层论坛暨钱冠连先生学术思想研讨会在广东外语外贸大学成功举办。会议由中国英汉语比较研究会中西语言哲学专业委员会主办,教育部人文社科重点研究基地——广东外语外贸大学外国语言学及应用语言学研究中心承办。会议分3个专场和2个分会场,包含10场主旨报告和26场分组报告。会议从语言哲学经典阅读、中国后语言哲学、语言哲学与语用学等维度追思钱冠连先生的后语言哲学创新之路。关于语哲经典阅读,吉林大学聂大海教授以克里普克《命名与必然性》为例指出,阅读语哲经典文献时,既要读出经典中提出的问题,也要读出经典中论证逻辑的转变,同时要读出经典中解释范式的转变。广东外语外贸大学冯光武教授从概念分析、“奥卡姆剃刀”等入手追溯语用学的分析哲学传统,并指出,语用学的新发展始终未远离其基本关怀,即语言符号和使用者之间的关系,语用学始终以概念分析为基本方法,同时借助更加科学的研究方法与工具。关于中国后语言哲学,四川外国语大学王寅教授指出,钱冠连先生提出的中国后语言哲学完全符合当前新文科的要求。他鼓励学者在钱先生学术思想指引下,真正践行新文科理念。

关键词：学术思想研讨会经典阅读奥卡姆剃刀外国语大学钱冠连广东外语外贸大学语言哲学分组报告

BioLeT: A new design strategy for functional bioluminogenic probes

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Chinese Chemical Letters 2015年第8期26卷 919-921页

作者： Tian-Chao zhang Lu-Pei Du min-yong Li Department of Medicinal Chemistry Key Laboratory of Chemical Biology (MOE) School of Pharmacy Shandong University

By integrating photoinduced electron transfer（PET） into the design of functional bioluminogenic probes,Urano and his coworkers recently developed a new rational design strategy, BioLeT. It is expected that this BioLeT strategy will enable us to design and develop new bioluminescence probes for detecting various biomolecules with no catalytic or reactive activity.

关键词： probes detecting enable integrating rational utilized challenging instead absolute moiety

Insights of Chinese Medicine on Ventricular Remodeling:Multiple-Targets,Individualized-Treatment

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Chinese Journal of Integrative Medicine 2017年第9期23卷 643-647页

作者： FAN Dan-cai QI Jian-yong zhang min-zhou AMI Key Laboratory of Chinese Medicine in Guangzhou Intensive Care Research Team of Traditional Chinese MedicineGuangdong Province Hospital of Chinese Medicine2ndAffiliated Hospital of Guangzhou University of Chinese MedicineGuangdong Provincial Academy of Chinese Medical ScienceGuangzhou510006China

Ventricular remodeling （VR） can be induced by myocardial injury, leading to progressive cardiac dysfunction and heart failure, and is associated with high morbidity and mortality. Despite being studied for more than 3 decades, current therapeutic strategies still remain unsatisfactory in efficacy, expensive, and with side effects and drug resistances. Chinese medicine （CM） has been used to treat heart diseases for thousands of years. This article reviews the published studies on the mechanisms and therapeutic applications of CM in VR. The major aspects include： mechanistic studies of VR, molecular biology and myocardial functional studies of CM therapies on VR, and mechanism of CM therapies on VR.

关键词： ventricular remodeling Chinese medicine heart failure

A new approach to the synthesis of N-monosubstituted aniline and its derivatives viaβ-cyclodextrin host-guest complexes

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Chinese Chemical Letters 2008年第10期19卷 1139-1142页

作者： min zhang yong Gao Rong Zu Hu Zhen Shi College of Chemistry and Materials Science Fujian Normal University Fuzhou 350007 China Department of Chemistry Northwest University Xi＇an 710069 China Xi＇an Modern Chemistry Research Institute Xi＇an 710065 China

A novel method for the synthesis of N-monosubstituted aniline and its derivatives via β-cyclodextrin （CD） host-guest complexes has been presented. The mild reaction gives the title compounds with high selectivity i... 详细信息

关键词： β-Cyclodextrin Catalyst Inclusion compounds