拉胀高分子材料的研究进展
作者：
魏荣;吴红枚;李竞;陈少云;陈解放;...
期刊：
高分子材料科学与工程 ,2013年29(1):183-186 ISSN：1000-7555
通讯作者：
Wu, H.(wuhongmei@gmail.com)
作者机构：
[陈少云; 吴斌; 李竞; 陈解放; 魏荣; 吴红枚] Department of Polymer Science and Engineering, College of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
通讯机构：
[Wu, H.] D;Department of Polymer Science and Engineering, College of Chemistry and Chemical Engineering, University of South China, China
关键词：
拉胀性;负泊松比;拉胀高分子
摘要：
拉胀材料即具有负泊松比的材料。文中在简要介绍负泊松比起源的基础上,重点阐述了拉胀高分子材料目前现有的四大种类:泡沫聚合物、微孔聚合物、拉胀纤维和复合材料,并简述其研究现状。介绍了不同研究者关于拉胀性机理研究的观点、模型,指出拉胀机理的研究有待深入,就拉胀高分子材料领域中的研究方向和热点问题提出了一些独到的观点和看法,介绍了笔者在该方向上的相关工作和思路,并对拉胀高分子这一新材料品种的广阔应用前景予以展望。
语种：
中文
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高聚物材料的形变热效应及表征技术
作者：
王孟;廖云;刘芝芳;陈大俊
期刊：
高分子通报 ,2013年(12):94-98 ISSN：1003-3726
作者机构：
[王孟; 廖云; 刘芝芳] 南华大学化学化工学院;[陈大俊] 东华大学材料科学与工程学院
关键词：
高聚物材料;热效应;表征技术;红外热成像技术
摘要：
高聚物材料在受力形变过程中,环境温度对材料力学性能影响很大,但形变过程自身产生的热效应有时也不能被忽略。当材料样品足够厚或形变速率足够快,即近似绝热的情况下,通过这些热效应特征可获得材料分子聚集结构的信息和材料形变机理。本文介绍了高聚物材料的几种形变热效应特征,包括普弹形变热效应、塑性形变热效应、弹性大形变热效应和疲劳热效应,并简单介绍了形变热效应的表征技术,包括形变量热法、热电偶法和红外热成像法。
语种：
中文
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Relationship between the distribution of plasma HDL subclasses and the polymorphisms of APOA5 in hypertriglyceridemia
作者：
Long, Shiyin;Chen, Zhijun;Han, Ying;Christopher, Devin M.;Zhang, Caiping;...
期刊：
Clinical Biochemistry ,2013年46(9):733-739 ISSN：0009-9120
通讯作者：
Tian, Ying
作者机构：
[Han, Ying; Tian, Ying; Yang, Ying; Chen, Zhijun; Long, Shiyin; Zhang, Caiping] Univ South China, Dept Biochem & Mol Biol, Hengyang 421001, Hunan, Peoples R China.;[Christopher, Devin M.] Univ Penn, Perelman Sch Med, Cardiovasc Inst, Inst Translat Med & Therapeut, Philadelphia, PA 19104 USA.;[Han, Ying] Univ Xiang Nan, Dept Basic Med, Chenzhou 423000, Hunan, Peoples R China.
通讯机构：
[Tian, Ying] U;Univ South China, Dept Biochem & Mol Biol, Hengyang 421001, Hunan, Peoples R China.
关键词：
2-dimensional electrophoresis;Apolipoprotein A5;Gene polymorphism;HDL subclasses;Hypertriglyceridemia;PCR-RFLP
摘要：
Aims: This study aims to examine the possible associations between high density lipoprotein (HDL) subclass distribution and APOA5-1131T>C polymorphism in hypertriglyceridemia. Methods: The distribution of HDL subclasses was quantified by 2-dimensional electrophoresis in conjunction with immunodetection method. The APOA5-1131T>C polymorphism was identified in 95 hypertriglyceridemic (HTG) patients and 102 healthy subjects by polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP). Results: The APOA5-1131C (C) allele frequency was higher in the HTG group than in the control group. Plasma triglycerides (TG) were significantly higher and apoA5 was significantly lower in patients with the C allele when compared to patients with the APOA5-1131T (T) allele, even more dramatically so in the APOA5-1131CC homozygote. In both the HTG group and the control group, the frequency of the C allele was positively correlated with levels of TG, total cholesterol (TC), low density lipoprotein cholesterol (LDL-C) and apolipoprotein B100 (apoB100), and negatively correlated with levels of high density lipoprotein cholesterol (HDL-C), apolipoprotein A1 (apoA1) and apolipoprotein A5 (apoA5) (P < 0.001). In all subjects, the frequency of the C allele was positively correlated with the level of small-sized HDL (pre beta(1)-HDL and HDL3a), and negatively correlated with levels of HDL2a and HDL2b. Conclusion: Changes in HDL subclass distributions in HTG may be related to the APOA5-1131T>C polymorphism. This polymorphism leads to a general shift towards smaller-sized HDL. (c) 2013 The Canadian Society of Clinical Chemists. Published by Elsevier Inc. All rights reserved.
语种：
英文
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Determination of malachite green, crystal violet and their leuco-metabolites in fish by HPLC–VIS detection after immunoaffinity column clean-up
作者：
Xie, Jie;Peng, Tao* ;Chen, Dong-Dong;Zhang, Qing-Jie;Wang, Guo-Min;...
期刊：
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES ,2013年913-914:123-128 ISSN：1570-0232
通讯作者：
Peng, Tao
作者机构：
[Xie, Jie; Zhang, Qing-Jie; Chen, Dan; Deng, Jian] Univ S China, Dept Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.;[Peng, Tao; Chen, Dong-Dong] Chinese Acad Inspect & Quarantine, Beijing 100123, Peoples R China.;[Wang, Guo-Min] Chongqing Entry Exit Inspect & Quarantine Bur, Chongqing 400020, Peoples R China.;[Wang, Xiong; Jiang, Fan; Guo, Qi] Clover Technol Grp Ltd, Beijing 100044, Peoples R China.
通讯机构：
[Peng, Tao] C;Chinese Acad Inspect & Quarantine, Beijing 100123, Peoples R China.
关键词：
Crystal violet;High performance liquid chromatography;Immunoaffinity column;Leuco metabolites;Malachite green
摘要：
A high performance liquid chromatography method with visible detection (HPLC-VIS) for the determination of malachite green (MG), crystal violet (CV), leucomalachite green (LMG), and leucocrystal violet (LCV) in fish has been developed after clean-up through an immunoaffinity column (IAC). Residues were simultaneously extracted from fish muscle with acetonitrile and ammonium acetate buffer. The leuco-forms, LMG and LCV, were oxidized quantitatively to the chromic CV and MG by reaction with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone. Extracts were then purified on an IAC which prepared by immobilizing the anti-MG-CV antibodies by the sol-gel method. Finally, the eluents were analyzed by HPLC-VIS. The limits of detection were 0.15, 0.1, 0.18 and 0.14 ng/g for MG, CV, LMG and LCV, respectively. The average recoveries in samples fortified with MG, CV, LMG and LCV over the range 0.5-10 ng/g were from 71.6% to 96.8% with RSDs of 5.1-12.3% (n = 6). This novel method was confirmed by liquid chromatography-tandem mass spectrometry with electrospray interface in positive mode using multiple reaction monitoring. (c) 2012 Elsevier B.V. All rights reserved.
语种：
英文
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量子化学法研究苯并芘分子的结构和性质
作者：
龙威;颜雪明;贺楚华
期刊：
天津师范大学学报(自然科学版) ,2013年33(4):78-82 ISSN：1671-1114
作者机构：
南华大学化学化工学院,湖南衡阳,421001;[龙威; 颜雪明; 贺楚华] 南华大学
关键词：
苯并芘;量子化学;密度泛函;前线轨道
摘要：
结合HF、B3LYP、B3PW91、MP2等不同经典量子化学方法,在6-311++G（d,p）水平上计算苯并芘的分子结构和电子结构,并对苯并芘分子的几何构型、Wiberg键级、光谱、静电荷布居等进行分析,结合前线轨道理论探讨分子的稳定性和反应活性.结果表明:苯并芘分子呈环状平面型,其中碳原子的活性不同,C（8）的反应活性最高,最容易接受亲电试剂的进攻.前线轨道分析表明:苯并芘分子以接受电子为主,计算得出ΔE L-H=3.048 eV,表明该分子具有适合的能带宽度,可作为有机发光材料的原料.同时计算其在不同温度下的热力学性质.MP2方法在能量计算方面体现出较精确的优势.
语种：
中文
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DNAzyme在金电极上自组装电化学生物传感器的制备
作者：
唐琼;袁亚莉;胡建邦;马丹丹;高阳阳
期刊：
南华大学学报(自然科学版) ,2013年27(2):63-66 ISSN：1673-0062
作者机构：
南华大学化学化工学院湖南衡阳;[唐琼] 湖南环境生物职业技术学院;[高阳阳; 胡建邦; 袁亚莉; 马丹丹] 南华大学
关键词：
自组装;二茂铁(Fc);循环伏安法
摘要：
利用巯基与金表面Au-S键的自组装技术,可以将巯基修饰的DNAzyme固定在金电极表面形成电化学生物传感器,并以含有[Fe（CN）6]3-/4-的磷酸缓冲液（PBS）作为电化学检测底液,利用循环伏安法初步研究该修饰电极的电化学行为和修饰过程的电化学表征.DNAzymes自组装膜的存在明显抑制了二茂铁与[Fe（CN）6]3-/4-之间的电子转移.结果表明,基于巯基修饰的DNAzyme在金电极表面能够发生自组装作用,在金电极表面形成较为稳固的自组装DNAzyme膜.
语种：
中文
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红外热成像技术表征高聚物材料拉伸形变热效应的方法
作者：
王孟;刘芝芳;廖云;陈大俊
期刊：
南华大学学报(自然科学版) ,2013年27(1):75-77 ISSN：1673-0062
作者机构：
南华大学化学化工学院,湖南衡阳421001;东华大学材料学院,上海201620;南华大学化学化工学院,湖南衡阳,421001;东华大学材料学院,上海,201620;[刘芝芳; 王孟; 廖云] 南华大学
关键词：
红外热成像技术;高聚物材料;热效应;温度
摘要：
用红外热成像技术可以表征高聚物材料拉伸形变过程的热效应特征.本文主要从测试装置的建立、红外热成像仪的镜头选择、材料发射率的确定及温度的采集方法等几个角度,介绍如何通过红外热成像仪提高测试高聚物材料形变热效应特征准确性的方法.
语种：
中文
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信息技术改变农村中学生学习方式的内涵与途径
作者：
龙威;陈仲清;刘勇
期刊：
福建信息技术教育 ,2013年(1):57-61
作者机构：
南华大学化学化工学院
关键词：
学习方式;信息技术;农村中学
摘要：
结合多年的教学实践,诠释了信息技术改变农村中学生学习方式的重要内涵:信息技术通过以电脑与网络技术提供了更多快捷的学习新模式,情景视频学习法取代教材灌输模式,激发学生自主探究学习的内在动能。信息技术改变农村中学生学习方式的主要途径有网络资料搜索、论坛发帖讨论、QQ交流及远程情景教学模式等。
语种：
中文
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Adsorption of thorium(IV) from aqueous solution by non-living biomass of mangrove endophytic fungus Fusarium sp #ZZF51
作者：
Yang, S. K.;Tan, N.* ;Yan, X. M.;Chen, F.;Lin, Y. C.
期刊：
Journal of Radioanalytical and Nuclear Chemistry ,2013年298(2):827-833 ISSN：0236-5731
通讯作者：
Tan, N.
作者机构：
[Tan, N.; Yan, X. M.; Yang, S. K.; Chen, F.] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.;[Lin, Y. C.] Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China.
通讯机构：
[Tan, N.] U;Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
关键词：
Fusarium sp. #ZZF51;Biosorption;Thorium(IV);Kinetics;Equilibrium
摘要：
The adsorption of thorium(IV) from aqueous solution by mangrove endophytic fungus Fusarium sp. #ZZF51 is studied by using a batch experiments. The parameters that affect the thorium(IV) sorption, such as solution pH, initial thorium(IV) concentration, contact time, and biomass dose, are discussed in detail. The maximum biosorption of thorium(IV) and the equilibrium sorption capacity are found to be 91 ± 1 % and 11.35 mg g-1 respectively at pH 3.0, contact time 20 min, initial thorium(IV) concentration 50 mg L-1 and non-living biomass dose 4.0 g L-1. Kinetics data follow the pseudo-second-order model and equilibrium data agree with the Temkin isotherm model very well. FT-IR analysis indicates that hydroxyl and carbonyl groups play an important role in the biosorption process. © 2013 Akadémiai Kiadó, Budapest, Hungary.
语种：
英文
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Thorium(IV) removal from aqueous medium by citric acid treated mangrove endophytic fungus Fusarium sp. #ZZF51
作者：
Yang, S. K.;Tan, N.* ;Yan, X. M.;Chen, F.;Long, W.;...
期刊：
Marine Pollution Bulletin ,2013年74(1):213-219 ISSN：0025-326X
通讯作者：
Tan, N.
作者机构：
[Tan, N.; Yan, X. M.; Long, W.; Yang, S. K.; Chen, F.] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.;[Lin, Y. C.] Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China.
通讯机构：
[Tan, N.] U;Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
关键词：
Biosorption;Citric acid;Fungus Fussarium sp. #ZZF51;Isotherms;Kinetics;Thorium(IV) removal
摘要：
Thorium(IV) biosorption is investigated by citric acid treated mangrove endophytic fungus Fussarium sp. #ZZF51 (CA-ZZF51) from South China Sea. The biosorption process was optimized at pH 4.5, equilibrium time 90min, initial thorium(IV) concentration 50mgL<sup>-1</sup> and adsorbent dose 0.6gL<sup>-1</sup> with 90.87% of removal efficiency and 75.47mgg<sup>-1</sup> of adsorption capacity, which is obviously greater than that (11.35mgg<sup>-1</sup>) of the untreated fungus Fussarium sp. #ZZF51 for thorium(IV) biosorption under the condition of optimization. The experimental data are analyzed by using isotherm and kinetic models. Kinetic data follow the pseudo-second-order model and equilibrium data agree very well with the Langmuir model. In addition, FTIR analysis indicates that hydroxyl, amino, and carbonyl groups act as the important roles in the adsorption process. ©2013 Elsevier Ltd.
语种：
英文
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Simultaneous determination of copper, lead and zinc in alloy by potentiometric titration coupled with multivariate calibration using a flow injection technique
作者：
Deng, Changai* ;Liao, Lifu;Long, Wei
期刊：
Advanced Materials Research ,2013年785-786:1353-1358 ISSN：1022-6680
通讯作者：
Deng, Changai
作者机构：
[Long, Wei; Liao, Lifu; Deng, Changai] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.
通讯机构：
[Deng, Changai] U;Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.
会议名称：
3rd International Conference on Chemical Engineering and Advanced Materials (CEAM 2013)
会议时间：
JUL 06-07, 2013
会议地点：
Guangzhou, PEOPLES R CHINA
会议主办单位：
[Deng, Changai;Liao, Lifu;Long, Wei] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.
会议论文集名称：
Advanced Materials Research
关键词：
Alloy;Complexometric titration;Flow injection technique;Multivariate calibration
摘要：
A new potentiometric titration method coupled with multivariate calibration using a flow injection technique for the simultaneous determination of multi-components in alloy has been developed. the titrant is a mixture of EDTA and sodium fluoride, both mercury film electrode and fluorinion selective electrode are inserted in the flow cell. In a process of titration, both the potentiometric of mercury ion and the mixed proportion of reactants at each titration point can be obtained simultaneously from the two electrodes, and then the concentration of each component in the mixture can be obtained from the titration curves by multivariate calibration method. The method is free of volumetric and time measurements, and reduces the consumption of reagents and samples. The method is also very quick in analysis rapidity. The method has been applied for the simultaneous determination of copper, lead and zinc in alloy samples with the relative standard deviation of 0.18%~0.45% and the recovery of 99.5%~101.6%.
语种：
英文
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Piromelatine decreases triglyceride accumulation in insulin resistant 3T3-L1 adipocytes: Role of ATGL and HSL
作者：
Wang, Ping-Ping;She, Mei-Hua;He, Ping -Ping;Chen, Wu-Jun;Laudon, Moshe;...
期刊：
Biochimie ,2013年95(8):1650-1654 ISSN：0300-9084
通讯作者：
Yin, Wei-Dong
作者机构：
[Xu, Xuan-Xuan; He, Ping -Ping; Yin, Wei-Dong; Chen, Wu-Jun; Wang, Ping-Ping] Univ South China, Inst Cardiovasc Res, Key Lab Atherosclerol Hunan Prov, Hengyang 421001, Hunan, Peoples R China.;[Yin, Wei-Dong; She, Mei-Hua] Univ South China, Dept Biochem & Mol Biol, Sch Life Sci & Technol, Hengyang 421001, Hunan, Peoples R China.;[Chen, Wu-Jun] Univ South China, Inst Pharm, Hengyang 421001, Hunan, Peoples R China.;[Chen, Wu-Jun] Univ South China, Inst Pharmacol, Hengyang 421001, Hunan, Peoples R China.;[Laudon, Moshe] Neurim Pharmaceut Ltd, Drug Discovery, Tel Aviv, Israel.
通讯机构：
[Yin, Wei-Dong] U;Univ South China, Inst Cardiovasc Res, Hengyang 421001, Hunan, Peoples R China.
关键词：
3T3-L1 adipocyte;ATGL HSL;Ca2+;Insulin resistance;Piromelatine;Triglyceride
摘要：
Piromelatine, a novel investigational multimodal sleep medicine, is developed for the treatment of patients with primary and co-morbid insomnia. Piromelatine has been shown to inhibit weight gain and improve insulin sensitivity in high-fat/high-sucrose-fed (HFHS) rats. Considering that piromelatine has also been implicated in lowering of triglyceride levels in HFHS rats, this work elucidated whether this effect involves in the regulation of adipose triglyceride lipase (ATGL) and hormone-sensitive lipase (HSL) in triglyceride (TG) metabolism. In this study, we investigated the effects of piromelatine and MT2 receptors inhibition on TG content, insulin-stimulated glucose uptake, and the expressions of ATGL and HSL in 3T3-L1 adipocytes preincubated in high glucose and high insulin (HGI) conditions. Our results showed that culturing 3T3-L1 adipocytes under HGI conditions increased triglyceride accumulation with concomitant decrease of ATGL and HSL expression, inducing insulin resistance in 3T3-L1 adipocytes. We also found that triglyceride accumulation was significantly inhibited and the levels of ATGL/HSL increased after melatonin or piromelatine treatment. The effects of melatonin/piromelatine (10 nM) were counteracted by pretreatment with the relatively selective MT2 receptor antagonist luzindole (100 nM). In this study, our data demonstrate that piromelatine reverses high glucose and high insulin-induced triglyceride accumulation in 3T3-L1 adipocytes, possibly through up-regulating of ATGL and HSL expression via a melatonin-dependent manner. © 2013 Elsevier Masson SAS. All rights reserved.
语种：
英文
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挥发曲线法测定鹅不食草挥发油的研究
作者：
刘运美;何军;陈文;郭玉;宋秀道
期刊：
广州化工 ,2013年41(14):91-92 ISSN：1001-9677
作者机构：
南华大学药学与生物科学学院药学系,湖南衡阳,421001;南华大学化学化工学院,湖南衡阳,421001
关键词：
鹅不食草;挥发油;挥发曲线法;含量测定
摘要：
建立了鹅不食草挥发油含量测定新方法,并对水蒸汽蒸馏法一些提取条件（如粉末粗细,萃取溶剂,浸泡等）进行优化,以确定最佳提取方案。具体方法是：利用水蒸汽蒸馏法提取鹅不食草中挥发油,采用挥发曲线法测定挥发油含量。结果表明：水蒸汽蒸馏法的提取率最佳工艺是粉末先浸泡1～2 h,再进行水蒸气蒸馏法,用乙醚萃取为佳。挥发曲线法RSD为0.959%。挥发曲线法测定挥发油含量是一种成本低廉,操作简便,准确的测定方法。
语种：
中文
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Label-free liquid crystal biosensor based on specific oligonucleotide probes for heavy metal ions
作者：
Yang, Shengyuan;Wu, Chao;Tan, Hui;Wu, Yan;Liao, Shuzhen;...
期刊：
Analytical Chemistry ,2013年85(1):14-18 ISSN：0003-2700
通讯作者：
Wu, Zhaoyang
作者机构：
[Yang, Shengyuan; Wu, Zhaoyang; Wu, Chao; Wu, Yan; Shen, Guoli; Tan, Hui; Yu, Ruqin; Liao, Shuzhen] Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China.;[Yang, Shengyuan] Univ S China, Coll Publ Hlth, Hengyang 421001, Peoples R China.
通讯机构：
[Wu, Zhaoyang] H;Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China.
摘要：
In this study, to enhance the capability of metal ions disturbing the orientation of liquid crystals (LCs), we designed a new label-free LC biosensor for the highly selective and sensitive detection of heavy metal ions. This strategy makes use of the target-induced DNA conformational change to enhance the disruption of target molecules for the orientation of LC leading to an amplified optical signal. The Hg2+ ion, which possesses a unique property to bind specifically to two DNA thymine (T) bases, is used as a model heavy metal ion. In the presence of Hg2+, the specific oligonucleotide probes form a conformational reorganization of the oligonucleotide probes from hairpin structure to duplex-like complexes. The duplex-like complexes are then bound on the triethoxysilylbutyraldehyde/N,N- dimethyl-N-octadecyl (3-aminopropyl) trimethoxysilyl chloride (TEA/DMOAP)-coated substrate modified with capture probes, which can greatly distort the orientational profile of LC, making the optical image of LC cell birefringent as a result. The optical signal of LC sensor has a visible change at the Hg 2+ concentration of low to 0.1 nM, showing good detection sensitivity. The cost-effective LC sensing method can translate the concentration signal of heavy metal ions in solution into the presence of DNA duplexes and is expected to be a sensitive detection platform for heavy metal ions and other small molecule monitors. © 2012 American Chemical Society.
语种：
英文
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无线磁弹性传感测量γ射线辐射剂量
作者：
廖力夫;杜楠;肖拥军;肖锡林;林英武;...
作者机构：
南华大学化学化工学院，湖南衡阳 421001;南华大学核科学技术学院，湖南衡阳 421001
会议名称：
中国核学会2011年年会
会议时间：
20111011
会议地点：
贵阳
会议论文集名称：
中国核学会2011年年会论文集
关键词：
Gamma ray;radiation dose;wireless sensing;magnetoelastic
摘要：
目的：建立应用磁弹性传感器无线传感法测定γ射线辐射剂量的方法。方法：基于γ射线可引发丙烯酰胺(AM) 发生聚合反应，从而导致溶液粘度发生变化，而溶液粘度的变化可由磁弹性传感器进行检测的事实而建立相应的方 法。磁弹性传感技术具有能无线检测磁弹性片的共振频率变化的独特性质，这种共振频率变化对应于磁弹性片所浸 入溶液粘度的变化。通过共振频率的变化可对γ射线的辐射剂量进行定量测定。结果：在适宜的条件下共振频率的 频移与辐射剂量呈线性关系，测定范围为0-50Gy，检出限为0．25Gy。应用本方法测定了实际环境中γ射线的辐射 剂量，结果令人满意。结论：本方法可实时、连续、原位监测γ射线的辐射剂量。
语种：
中文
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化工实验仿真趋势及在我院的应用
作者：
范明舫;贺楚华;王延飞;阳鹏飞;杜可杰;...
期刊：
广东化工 ,2013年40(23):183,185 ISSN：1007-1865
作者机构：
南华大学化学化工学院,湖南衡阳,421001;[贺楚华] 贺楚华;[杜可杰] 杜可杰;[邓健] 邓健;[阳鹏飞] 阳鹏飞
关键词：
仿真;虚拟实验;教学质量;化工原理实验
摘要：
文章剖析了制约常规化工实验实物教学效果的几个因素,论述了仿真教学在化工原理实验教学中的几个优势所在,介绍了本校化工原理课程建设需要面对的实况及施行化工原理仿真实验教学所获得的效果.
语种：
中文
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阿昔洛韦的药理活性量化方法探究
作者：
龙威
期刊：
闽西职业技术学院学报 ,2013年15(3):117-120 ISSN：1673-4823
作者机构：
南华大学化学化工学院,湖南衡阳,421001
关键词：
量化计算;阿昔洛韦;药理活性;密度泛函;自由基
摘要：
选择B3LYP/6-311+G(d,p)方法对阿昔洛韦进行了量子化学计算,对其分子构型、偶极矩、疏水参数、红外光谱、自旋密度分布和前线轨道结构进行了详细探究.结果表明,阿昔洛韦能发挥较好的抗氧化作用,模拟计算获得N(3)-H的活性最强.它在体内极性较大的环境下能发挥很好的吸收效果,研究结果可为阿昔洛韦的药理活性提供理论指导.
语种：
中文
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红壤胶体对U(Ⅵ)的吸附性能及机理
作者：
夏良树;黄欣;曹存存;吕俊文;陈伟
期刊：
原子能科学技术 ,2013年47(10):1692-1699 ISSN：1000-6931
通讯作者：
Xia, L.-S.
作者机构：
[夏良树; 黄欣] School of Nuclear Science and Technology, University of South China, Hengyang 421001, China;[吕俊文] School of Environment Protection and Safety Engineering, University of South China, Hengyang 421001, China;[曹存存; 陈伟] School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
通讯机构：
School of Nuclear Science and Technology, University of South China, China
关键词：
红壤胶体;吸附;机理
摘要：
采用静态法研究了某铀矿山附近土壤中的红壤胶体在不同pH值、离子强度、吸附平衡时间、铀溶液初始浓度、胶体用量、胶体粒径和有机质条件下对U (Ⅵ)的吸附影响,从热力学和动力学方面对吸附过程进行了分析,并通过元素分析、红外光谱(FT-IR)和扫描电镜(SEM)对吸附机理进行了初步探讨。实验结果表明:离子强度越小,胶体粒径越小,胶体对U(Ⅵ)的吸附量越大;单位质量红壤胶体对铀的吸附量随铀初始质量浓度的增大而增大,随红壤胶体用量的增大而减少;在25℃、pH值为3.5、离子强度为0.001 mol/L时,粒径小于1μm的红壤胶体的饱和吸附量q_(max)为76.76μg/mg。红壤胶体吸附铀酰离子前后的红外光谱表明,与吸附相关的主要基团为羟基、羰基、Si-O、Si-O-Fe等。红壤胶体对铀的吸附遵循Langmuir吸附等温线,符合准二级吸附动力学方程。
语种：
中文
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[1]-萘并[1,2-b]、[2,1-b]氧杂卓并[3,4-b]喹啉-15（8H）-酮的合成及量化计算
作者：
钟亮;陈灿丽;龙威;叶余原;熊双喜
期刊：
化学工程师 ,2013年27(8):68-71 ISSN：1002-1124
作者机构：
台州学院生命科学学院,浙江临海,317000;台州学院医药化工学院,浙江临海,317000;南华大学化学化工学院,湖南衡阳,421001;[龙威] 南华大学;[钟亮; 叶余原; 陈灿丽; 熊双喜] 台州学院
关键词：
Friedlander缩合;自由基溴化;威廉姆逊反应;闭环反应
摘要：
以邻硝基苯甲醛为起始原料,经还原、Friedlander缩合、溴化反应得到中间体2-溴甲基-3-喹啉酸乙酯,再将其分别与α-萘酚和β-萘酚一锅法高产率地合成2-（α-萘氧甲基）-3-喹啉酸和2-（β-萘氧甲基）-3-喹啉酸,然后分别通过Eaton’s Reagent环化,发生分子内Friedel-Crafts反应又得到2种新型闭环产物:[1]-萘并[1,2-b]氧杂卓并[3,4-b]喹啉-15（8H）-酮和[1]-萘并[2,1-b]氧杂卓并[3,4-b]喹啉-15（8H）-酮。合成产物经1H-NMR、MS和IR确认,并测定了在三氯甲烷中的紫外光谱和固体荧光光谱,并对其荧光光谱进行量子化学计算模拟。
语种：
中文
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Synthesis, Characterization, Polymerization of Optically Active Terminal Epoxides and Episulfides Bearing Bulky Groups
作者：
Sun Yun-kai;Zhang Jin;Liu Hui-jun;He Li;Gong Hang;...
期刊：
高等学校化学研究：英文版 ,2013年29(2):239-244 ISSN：1005-9040
通讯作者：
Yang Nian-fa
作者机构：
[Gong Hang; Yang Nian-fa; He Li; Sun Yun-kai; Zhang Jin] Xiangtan Univ, Coll Chem, Minist Educ, Key Lab Environm Friendly Chem & Applicat, Xiangtan 411105, Peoples R China.;[Liu Hui-jun; Sun Yun-kai] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.
通讯机构：
[Yang Nian-fa] X;Xiangtan Univ, Coll Chem, Minist Educ, Key Lab Environm Friendly Chem & Applicat, Xiangtan 411105, Peoples R China.
关键词：
Optical activity;Epoxide;Episulfide;One-handed helicity
摘要：
A simple and efficient protocol was developed for the syntheses of optically active epoxides(2a-2d) via the reactions of epichlorohydrin with organometallic reagents with steric hindrance at low temperature. On this basis, episulfides(3a-3d) were obtained with high e.e. values by the reaction of the corresponding epoxides with NH4SCN. The configuration of thiiranes was opposite to that of the corresponding epoxides. Then, epoxides 2a-2d were anionically polymerized and the poly-R-2a(or poly-S-2a) was proved to keep a stable one-handed helical conformation in solution. The oligomers[degree of polymerization(DP)=2-5] were obtained when the thiiranes(3a, 3b and 3c) were used to polymerize. © 2013 Jilin University, The Editorial Department of Chemical Research in Chinese Universities and Springer-Verlag GmbH.
语种：
英文
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