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A New Hapten for Immunoassay of Aldicarb

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Chinese Chemical Letters 2006年第8期17卷 1021-1024页

作者： Yan Feng zhang zhi xian GAO Qing Min zhang Shu Gui DAI College of Environmental Science and Engineering Nankai University Tianjin 300071 Institute of Hygiene and Environmental Medicine Tianjin 300050

A new hapten, aldicarb oxime succinic ester （AOSE）, was synthesized for immunoassay of aldicarb. It was conjugated to proteins by active ester method. Polyclonal antibody was raised against AOSE-BSA （bovine serum albumin） conjugate. Enzyme-linked immunosorbent assays （ELISAs） showed that this antiserum had high affinity to aldicarb and can be used for sensitive and selective immunoassay of aldicarb.

关键词： Aldicarb immunoassay hapten analysis.

Effects of chloride on electrochemical and stress corrosion cracking behavior of 9Cr ferritic-martensitic steel

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Journal of Iron and Steel Research International 2020年第6期27卷 719-731页

作者： Zhen zhang Zheng-fei Hu Liang He Xiao-bo zhang Xin-xian Fang Bao-sen zhang zhi-xin Ba Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing 211167JiangsuChina School of Materials Science and Engineering Nanjing Institute of TechnologyNanjing 211167JiangsuChina School of Materials Science and Engineering Tongji UniversityShanghai 201804China School of Materials Science and Engineering Georgia Institute of TechnologyAtlanta 30332-0620USA

The electrochemical and stress corrosion cracking behavior of 9Cr ferritic-martensitic steel is investigated in the chloride environment by using the traditional electrochemical method, the scanning vibrating electrode technique and the slow strain rate test (SSRT). Results of the static corrosion tests and corrosion morphology show that the prior austenite grain boundaries and martensite lath boundaries are the preferred sites for pit nucleation and growth in chloride environment. Results of SSRT coupled with insitu electrochemical test show that the transition from pitting corrosion to uniform corrosion, as well as the nucleation of stress corrosion crack, is the synergistic effects of the chloride and applied load. Stress corrosion cracking of the steel in the chloride environment can be divided into three different regions as follows: fast and uniform corrosion activ-ity, microcrack nucleation and propagation, and active crack growth regions.

关键词： 9Cr ferritic-martensitic steel Chloride In situ electrochemical test Scanning vibrating electrode technique Stress corrosion cracking

Influence of chemical liquids on the fatigue crack growth of the AZ31 magnesium alloy

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International Journal of Minerals,Metallurgy and Materials 2012年第3期19卷 225-230页

作者： zhang-zhong Wang xian-cong He Yun-qiang Bai zhi-xin Ba Yu-ming Dai Heng-zhi Zhou Department of Materials Science and Engineering Nanjing Institute of TechnologyNanjing 211167China

The fatigue crack growth behavior of an AZ31 magnesium alloy was investigated by comparing the effect of zirconate and phos-phate chemical liquids. The morphology, components, and phase compositions of the chemical depositions at the fatigue crack tip were analyzed by employing scanning electron microscopy （SEM）, energy dispersive spectroscopy （EDS）, and X-ray diffraction （XRD）, respectively. For samples with and without the chemical liquids, their stress-intensity factor values at the fatigue crack tip were compared by using a stress-strain gauge. The results demonstrated that a zirconate film （ZrxOy-ZnxOy） and a phosphate film （Zn3（PO4）2·4H2O and MgZnP2O7） could be formed on the fatigue crack-surface at the fatigue crack tip. The stress distribution was changed because of the chemical depositions and the causticity of the chemical liquids. This could decrease the stress-intensity factor value and thus effectively cause fatigue crack closure, which reduces the fatigue crack growth rate. Moreover, it was found that the fatigue crack closure effect of zirconates was more positive than that of phosphates.

关键词： magnesium alloys fatigue cracks crack closure deposition fatigue crack propagation

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重型颅脑损伤为主的多发伤救治策略

创伤外科杂志 2017年第10期19卷 734-736页

作者：林昊高翔蔡鸿儒柯铁许志贤张旭鸣福建医科大学省立临床医学院福州350001

目的探讨重型颅脑损伤为主的多发伤的临床特点及救治策略。方法回顾性分析福建医科大学省立临床医学院2012年6月—2016年6月收治的65例重型颅脑损伤合并多发伤患者的临床资料,男性48例,女性17例;年龄16~65岁,平均38.2岁。其中合并腹部... 详细信息

目的探讨重型颅脑损伤为主的多发伤的临床特点及救治策略。方法回顾性分析福建医科大学省立临床医学院2012年6月—2016年6月收治的65例重型颅脑损伤合并多发伤患者的临床资料,男性48例,女性17例;年龄16~65岁,平均38.2岁。其中合并腹部闭合性损伤18例,合并血气胸、创伤性湿肺、多发肋骨骨折及心脏挫伤12例,合并骨盆骨折11例,合并严重口腔颌面部损伤9例,合并四肢骨折15例;GCS≤8分,ISS≥16分。结果 65例患者中,恢复良好30例(46.2%),轻度残疾12例(18.5%),重度残疾8例(12.3%),植物生存状态及自动出院6例(9.2%),9例死亡(13.8%)。结论颅脑损伤合并多发伤伤情重且复杂,病死率及致残率高,采用多发伤一体化救治模式及损害控制外科原则,优先处理重型颅脑损伤,结合重症综合治疗,对提高重型颅脑损伤合并多发伤患者的救治成功率有积极意义。

关键词：多发伤颅脑损伤损害控制

Effect of Sintering Conditions on Structure of Manganese Zinc Ferrite Powders

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Chinese Journal of Aeronautics 2006年第B12期19卷 179-182页

作者： DONG Li-min HAN zhi-dong WU Ze zhang xian-you College of Materials Science and Engineering Harbin University of Science and Technology Harbin 150040 China

The structures of the Mn-Zn ferrites synthesized under different sintering conditions by the sol-gel method were investigated by the X-ray diffraction （XRD） and the scanning electron microscopy （SEM） with focus on two factors： the pre-sintering treatment and the calcining time. The results show that the sintering conditions have significant effects on the structures and the particle size of the Mn-Zn ferrites. Compared with the products without pre-sintering, those pre-sintered at 500℃ have a single phase and no diffraction peaks of Fe2O3 that could be found. The effects of the pre-sintering temperature on the structures of the ferrites were also studied. As a result, 500℃ proves to be the favorite in the pre-sintering treatment. The XRD patterns of the ferrites calcined at 1 200℃ for 6 h will present diffraction peaks of pure crystallization of spinel phase while those for 2 h or 4 h will show peaks of Fe2O3. The SEM also bears witness to well-grown grains of pure Mn-Zn ferrites if calcined for 6 hours.

关键词： manganese zinc ferrite spinel sol-gel sintering time

Quantitative Trait Loci Mapping of Leaf Morphological Traits and Chlorophyll Content in Cultivated Tetraploid Cotton

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Journal of Integrative Plant Biology 2005年第11期47卷 1382-1390页

作者： xian-Liang SONG Wang-Zhen GUO zhi-Guo HAN Tian-Zhen zhang State Key Laboratory of Crop Genetics and Germplasm Enhancement Cotton Research Institute Nanjing Agricultural University Nanjing 210095 China Shandong Agricultural University College of Agronomy Taian 271018 China

Genetic mapping provides a powerful tool for quantitative trait loci （QTL） analysis at the molecular level. A simple sequence repeat （SSR） genetic map containing 590 markers and a BCI population from two cultivated tetraploid cotton （Gossypium hirsutum L.） cultivars, namely TM-1 and Hai 7124 （G. barbadense L.）, were used to map and analyze QTL using the composite interval mapping （CIM） method. Thirty one QTLs, 10 for lobe length, 13 for lobe width, six for lobe angle, and two for leaf chlorophyll content, were detected on 15 chromosomes or linkage groups at logarithm of odds （LOD）≥2.0, of which 15 were found for leaf morphology at LOD≥3.0. The genetic effects of the QTL were estimated. These results are fundamental for marker-assisted selection （MAS） of these traits in tetraploid cotton breeding.

关键词： chlorophyll cotton leaf morphology quantitative trait locus mapping simple sequencerepeat.

The flame retardancy of alginate/flame retardant viscose fibers investigated by vertical burning test and cone calorimeter

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Chinese Chemical Letters 2018年第3期29卷 489-492页

作者： xian-Sheng zhang Yan-zhi Xia Mei-Wu Shi Xiong Yan Key Laboratory of Textile Science & Technology Ministry of Education College of Textiles Donghua University Shanghai 201620 China Laboratory of Fiber Materials and Modern Textile The Growing Base for State Key Laboratory Qingdao University Qingdao 266071 China The Quartermaster Equipment Research Institute of Logistical Support Department Beijing 100082 China

In this research, the flame retardancy of neat alginate fiber, flame retardant viscose fiber （FRV） and alginate/FRV （50/50） blending fibers were investigated by vertical burning and cone calorimeter tests. The vertical burning test showed that the afterflame time of alginate fiber was 0 s, but alginate presented serious smoldering behavior with the afterglow time of 605 s and damaged length of 85 mm, while the afterglow time of FRV was 0 s. When the FRV was incorporated into alginate with the weight ratio of 50/ 50, the afterglow time and damaged length were significantly reduced to 85 s and 35 mm, indicating the smoldering of alginate can be effectively decreased. The morphology and chemical structure of the alginate residual demonstrated that it was seriously destroyed during smoldering process, which was ascribed to its relative low initial thermal degradation temperature. Based on the thermal properties analysis, alginate and FRV fibers shared the concurrence of rapid degradation in the same temperature region of 250-300 ℃, through which, the compact and stable char formed by FRV can prevent the heat transmission and suppress the smoldering of alginate. Further, the cone calorimeter results demonstrated that the time to ignition （TTI） significantly increased and peak heat release rate （PHRR） decreased for alginate/FRV （50/50） compared with FRV. With this research, a new method to overcome the smoldering of alginate was proposed by blending with FRV

关键词： Alginate fibers Flame retardant viscose fibers Blending Flame retardancy Vertical burning test Cone calorimeter

A topology approach to overcome the pore size/volume trade-offs for autonomous indoor humidity control

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Science China Chemistry 2024年第9期67卷 2968-2974页

作者： zhi-Shuo Wang Xue-Wen zhang Kai Zheng Xiao-xian Chen Dong-Dong Zhou Jie-Peng zhang MOE Key Laboratory of Bioinorganic and Synthetic Chemistry GBRCE for Functional Molecular EngineeringSchool of ChemistryIGCMESun Yat-Sen UniversityGuangzhou 510275China Chemistry and Chemical Engineering Guangdong Laboratory Shantou 515021China

Autonomous indoor humidity control is gaining more and more attention but is limited by the trade-offs among pore volume,pore size and water stability of water *** solve this problem by using a unique coordination network topology combined with hydrolytically stable M(Ⅲ)carboxylate *** extending the ligand length from 9.0 to 11.2 and 13.7?,the pore volume significantly increases from 0.99 to 1.40 and 1.78 cm^(3)g^(-1),which proportionally increases the saturated water adsorption ***,the pore size slightly increases from 10.4 to 11.0 and 13.5A,which restricts the isotherm inflection pressure and hysteresis width to meet the requirement of indoor humidity *** single-crystals suitable for Xray diffraction studies were obtained by using Fe(Ⅲ)salts,while isostructural frameworks with sufficiently high water stabilities were synthesized by using Cr(Ⅲ)salts,which offer record working capacity of 0.90 and 1.10 g g^(-1)for indoor humidity control.

关键词： metal-organic frameworks water adsorption indoor humidity control water stability pore engineering

Syntheses and Structures of Two Macrocyclic Nickel(Ⅱ) Complexes Bridging Benzene Polycarboxylic Acid

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Chinese Journal of Structural Chemistry 2015年第5期34卷 749-756页

作者： OU Guang-Chuan LI Wen-Yi YUAN xian-You LI zhi-zhang Department of Biology and Chemistry Hunan University of Science and Engineering

Two complexes with formulas [Ni L][（Ni L）（IPA）2]·8H2O（1） and [（Ni L）（H2O）2] [（Ni L）（PMA）]·4H2O（2）（L = 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane,IPA2– = isophthalic anion,PMA4– = 1,2,4,5-benzenetetracarboxylic anion） were synthesized and characterized by elemental analyses and IR *** crystal structures were determined by X-ray *** complex 1,the [Ni L]^2＋ bridged IPA^2– to give [（Ni L）（IPA）2]^2– monomer,and the [Ni L]^2＋ bridged PMA4– to form a one-dimensional chain [（Ni L）（PMA）]n^2n– in complex *** [Ni L]^2＋ and [（Ni L）（IPA）2]^2–/[（Ni L）（PMA）]^2– are connected through intermolecular hydrogen bonding to generate three-dimensional supramolecular structures.

关键词： macrocyclic nickel(Ⅱ) complexes isophthalic 1 2 4 5-benzenetetracarboxylic