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基于LabVIEW实现数据采集的设计

机械管理开发 2010年第1期25卷 187-187,189页

作者：张连军何春俐常江陈光军郭士清佳木斯大学机械工程学院黑龙江佳木斯154007 佳木斯大学附属第二医院黑龙江佳木斯154002

介绍了虚拟仪器开发平台——图形化编程语言LabVIEW,阐述了数据采集系统的构成、采集的流程、信号的存储、回放及显示。所述该数据采集系统能够准确采集到波形,并有操作方便、采集精度较高等特点。

关键词： LabVIEW 数据采集设计

Exact Analytic Solutions for a Finite Width Strip with a Single Edge Crack

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Chinese Physics Letters 1999年第1期16卷 32-34页

作者： FAN Tian-you YANG Xiao-chun li he-xin Research Center of Materials Science Beijing Institute of TechnologyBeijing 100081

The present study develops a conformal mapping technique and deals with the exact analytic solutions in closed form to the finite width strip with single edge *** exact solutions including a universal suitable constan... 详细信息

关键词： exact conformal analytic

An Efficient Catalyst for the Direct Synthesis of N-Phenylpyrrolidine

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Chinese Chemical Letters 2006年第12期17卷 1540-1542页

作者： chun Mei li Zhi li MIAO Lei SHI Qi SUN Yu Hong he Institute of Chemistry for Functionalized Materials Faculty of Chemistry and Chemical Engineering Liaoning Normal University Dalian 116029 liaoyuan health School Liaoyuan 136200

N-Phenylpyrrolidine was efficiently synthesized over the mesoporous A1203 catalyst by the reaction of the aniline and 1,4-butylene-glycol at atmospheric pressure. The catalyst exhibited very high activity and selectivity. At the reaction temperature of 300~C, 1,4-butylene glycol conversion attained 100% and the selectivity of N-phenylpyrrolidine could exceed 98%.

关键词： Synthesis of N-phenylpyrrolidine mesoporous A1203 catalyst activity selectivity,aniline 1,4-butylene glycol.

Effects of W and Mo Additions on Wet-dry Acid Corrosion Behavior of Low-Alloy Steels Under Different O_2 Concentrations

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Acta Metallurgica Sinica(English Letters) 2016年第10期29卷 951-962页

作者： Qing-he Zhao Wei liu Shuan-Zhu li Bin-li Zhang Yi-chun Zhu Min-Xu Lu Corrosion and Protection Center Institute for Advanced Materials and Technology University of Science and Technology Beijing

Effects of W and Mo additions on wet-dry acid corrosion behavior of low-alloy steels under different O2 concentrations were investigated. The results showed that W and Mo-containing steels presented excellent wet-dry cor- rosion resistance under O2 concentrations of both 1 and 5%. The roles of W and Mo played in increasing corrosion resistance of the steels were different. W could improve the thermodynamic stability of the steel substrate, while Mo could promote the formation of protective rust. Interaction between W, Mo and O2 concentration greatly influenced wet-dry acid corrosion of low-alloy steels. W addition was more effective for depressing charge transfer process at the rust/substrate interface and presented higher enhanced effect on increasing corrosion resistance than Mo under O2 concentration of 1%. Mo was more effective on increasing rust compactness and showed higher enhanced effect on increasing corrosion resistance than W under O2 concentration of 5%.

关键词： Wet-dry acid corrosion Steel Corrosion resistance Electrochemical impedance spectroscopy(EIS) Rust

Genetic Diversity of Natural Myrica rubra *** Zucc Populations in Guangxi Revealed by ISSR Markers

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Agricultural Sciences in China 2010年第5期9卷 626-632页

作者： he Xin-hua PAN Hong DENG li-bao PAN Jie-chun li Feng li Yang-rui College of Agriculture Guangxi University Nanning 530004 P.R.China Guangxi Crop Genetic Improvement and Biotechnology Lab Guangxi Academy of Agricultural Sciences Nanning 530007 P.R.China

The present study was conducted to assess the molecular characterization and genetic diversity amongst natural populations of Myrica rubra in Guangxi Zhuang Autonomous Region, China, thus to provide scientific evidence for germplasm conservation and exploitation. Using ISSR （inter-simple sequence repeats） markers, the level of genetic variation and the molecular characterization of 10 natural populations of M. rubra, originated from Guangxi Zhuang Autonomous Region in China, were performed. Based on 11 primers, 123 clear and reproducible DNA fragments were generated, of which 95 （77.24%） were polymorphic. The average value of Nei＇s gene diversity （he） was 0.268. The coefficient of genetic differentiation （Gst） was 0.341, revealing that 34.1% of the total molecular variance existed among populations. The Mantel statistical testing showed that the genetic distance was correlated to the geographic distance, but the correlation was not significant. Ten populations were divided into two big clusters according to unweighted pair group method with arithmetic mean （UPGMA） analysis. One consisted of populations of Rongxian （RX）, hepu （HP）, liangqing （LQ）, Marshan （MS）, lingshan （LS） and Shansi （SS）, which originated from the southern Guangxi, while the other was composed of Guanyang （GY） and lingui （LG） populations of northern Guangxi, Huanjiang （HJ） populations of northwestern Guangxi and Shanglin （SL） populations of southern Guangxi. The level of genetic variation in wild M. rubra population distributed in Guangxi is high. Gene drift within the population was responsible for genetic variation in wild M. rubra in Guangxi, and the effect of the genetic flow among inter-populations was not significant. Classification of wild M. rubra populations was correlated to climate and environment. The molecular characterization and diversity assessment of M. rubra is of immense value for planning conservation of its genetic resources and their exploitation for further studies.

关键词： Myrica rubra population genetic diversity ISSR

Effects of ausforming strain on bainite transformation in nanostructured bainite steel

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International Journal of Minerals,Metallurgy and Materials 2017年第3期24卷 264-270页

作者： Hong-liang Fan Ai-min Zhao Qing-chun li Hui Guo Jian-guo he Engineering Research Institute University of Science and Technology Beijing Beijing Institute of Technology Press Beijing Institute of Technology School of Materials Science and Engineering Liaoning University of Technology School of Materials Science and Engineering Tsinghua University

The effects of ausforming strain on bainite transformation in high-carbon low-alloy nanobainite steel were investigated using a Gleeble 3500 thermomechanical simulator machine. The bainite transformation speed at 300°C was found to be accelerated by ausforming at 300, 600, and 700°C under applied strains ranging from 10% to 50% followed by isothermal transformation at 300°C. The ausformed bainite volume fraction varied with the ausforming strain because of the mechanical stabilization of the deformed austenite. Ausforming at low temperatures not only enhanced the bainite ferrite volume fraction but also refined the microstructure substantially. Although the amount of bainite ferrite might have been reduced with increasing strain, the microstructures were refined by ausforming. © 2017, University of Science and Technology Beijing and Springer-Verlag Berlin heidelberg.

关键词： Alloy steel Bainite Carbon Enzyme kinetics Ferrite Microstructure Nanostructured materials Phase transitions Strain Volume fraction

Effect of Small Content of Chromium on Wet–Dry Acid Corrosion Behavior of Low Alloy Steel

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Acta Metallurgica Sinica(English Letters) 2017年第2期30卷 164-175页

作者： Qing-he Zhao Wei liu Yi-chun Zhu Bin-li Zhang Shuan-Zhu li Min-Xu Lu Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China

Effect of small content of chromium（Cr） on wet–dry acid corrosion behavior of low alloy steels has been *** results show that the corrosion resistance of the steels increased with increasing Cr content from 0.10 to0.50 wt%.Higher content of Cr promotes initial corrosion and accelerates the formation of dense and protective rust in long-term *** enhanced protectiveness of the rust is closely related to its *** content of Cr increases the content of amorphous phases and decreases the content of c-Fe OOH in the rust,resulting in the high compactness of the rust and low electrochemical activity in acid *** dopes in rust and depresses the transformation from amorphous phases to a-Fe OOH,as well as the growth process of Fe OOH particles,which is responsible for the enhanced compactness of rust in long-term corrosion.

关键词： Low alloy steel Chromium Corrosion EIS TEM

Synthesis and Crystal Structure of Zn(II) Complex with Tridentate ligand N-(2-Hydroxy-1-naphthylidene)-L-serine

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Chinese Journal of Structural Chemistry 2006年第8期25卷 915-918页

作者： YU Qing li chun-Ying BIAN he-Dong HUANG Fu-Ping liANG Hong College of Chemistry and Chemical Engineering Guangxi Normal University Guilin 541004 China

A new Zn（Ⅱ） complex, [Zn（L）2（H2O）2], where H2L = N-（2-hydroxy-1-naphthyli- dene）-L-sedne, has been synthesized and characterized by single-crystal X-ray diffraction. The crystal belongs to monoclinic system, space group C2/c with a = 13.669（2）, b = 6.4657（9）, c = 31.463（5） A, β = 98.010（2）°, V = 2753.6（7） A^3, Z = 8, Mr = 358.64, Dc = 1.730 g/cm^3, F（000） = 1472,μ（MoKa） = 1.814 mm^-1, the final R = 0.0355 and wR = 0.0706. The Zn（Ⅱ） atom adopts a square-pyramidal geometry coordinated by the tridentate ligand and two water molecules. Intermolecular hydrogen bonds link the complex molecules into a two-dimensional layer.

关键词： Schiff base Zn(Ⅱ) complex crystal structure

污泥堆肥土地利用对土壤环境及高羊茅特性的影响

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北京水务 2014年第6期 1-5页

作者：李文忠吴敬东何春利叶芝菡薛万来北京市水科学技术研究院 100048

结合北京市污泥堆肥土地利用现状．研究了污泥堆肥对土壤环境及高羊茅（Festuca arundinace。）的影响。旨在为北京市污泥堆肥用于高羊茅园林生产提供理论依据，促进资源再利用。研究结果表明．施用污泥堆肥增加了高羊茅栽植小区土壤养... 详细信息

结合北京市污泥堆肥土地利用现状．研究了污泥堆肥对土壤环境及高羊茅（Festuca arundinace。）的影响。旨在为北京市污泥堆肥用于高羊茅园林生产提供理论依据，促进资源再利用。研究结果表明．施用污泥堆肥增加了高羊茅栽植小区土壤养分含量，特别是土壤中有机质含量增加明显，与空白对照相比增加了43．9％～73．2％，对土壤养分状况具有一定的改良效果；施用污泥堆肥后，高羊茅栽植小区土壤中重金属含量虽有不同程度的增加。但均远低于相关标准限值．且土壤重金属污染综合指数小于土壤安全限值0．7．表明种植小区土壤未受到重金属污染：施用污泥堆肥对高羊茅生长具有一定的促进作用．与空白对照相比．高羊茅总生物量增长率为16．7％～50．0％。综合分析试验结果，确定污泥堆肥用于高羊茅的适宜施用量为2kg／m^2。

关键词：污泥堆肥土壤环境重金属污染综合指数