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Preparation of Uniform Ni-B Amorphous Alloy Catalyst on CNTs and its Performance for Acetylene Selective Hydrogenation

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Chinese Chemical Letters 2006年第1期17卷 109-112页

作者： Chang Yuan hu feng yi LI Rong Bin ZHANG Li huA Department of Chemistry Nanchang University Nanchang 330047

Uniform Ni-B amorphous alloys about 14 nm have been prepared on CNTs-A support,named Ni-B/CNTs-A. In comparison with the Ni-B/CNTs amorphous catalyst, Ni-B/CNTs-A showed higher nickel loading, determined by ICP and be... 详细信息

关键词： CNTs aniline Ni-B amorphous alloy catalyst acetylene selective hydrogenation.

Molecular Mapping of Sterility QTLs qSS-3, qSS-6a and qSS-7 as Single Mendelian Factors via NIL strategy

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Rice science 2011年第2期18卷 110-115页

作者： Li Jing Xu Peng ZHOU Jia-wu hu feng-yi DENG Xian-neng CHEN Zhi-wei TAO Da-yun Food Crops Research Institute Yunnan Academy of Agricultural Sciences Kunming 650205 China Life Science School Yunnan University Kunming 650091 China

Hybrid sterility between Oryza glaberrima and O. sativa seriously hampers the introgression of favorable genes from each other. In order to further understand this issue, identification and isolation of hybrid sterility QTLs as single Mendelian factors are an effective strategy. A genetic map was constructed using a BC1 F1 population derived from a cross between an O. safiva japonica cultivar and an O. glaberrima accession. Four main-effect QTLs for pollen sterility were detected in the BC1F1. Five BC8F1 advanced backcross populations were developed via successive backcrosses based on phenotype and molecular selections. The BC8F1 populations showed bimodal distribution for pollen fertility and could be classified into semi-sterile and fertile types, fitting single Mendilian factor inheritance ratios. Three QTLs detected in the BC1F1 corresponding to qSS-3, qSS-6a and qSS-7 were mapped on chromosomes 6, 3 and 7, respectively, as single Mendilian factors.

关键词： hybrid sterility interspecific hybrid near-isogenic line quantitative trait locus Oryza sativa Oryza glaberrima

Prevention of common bile duct injury during laparoscopic cholecystectomy

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Hepatobiliary & Pancreatic Diseases International 2009年第4期8卷 414-417页

作者： Ou, Zhi-Bing Li, Sheng-Wei Liu, Chang-An Tu, Bing Wu, Chuan-Xin Ding, Xiong Liu, Zuo-Jin Sun, Ke feng, hu-yi Gong, Jian-Ping Chongqing Med Univ Affiliated Hosp 2 Dept Hepatobiliary Surg Chongqing 400010 Peoples R China Chongqing Med Univ Affiliated Hosp 2 Chongqing Key Lab Hepatobiliary Surg Chongqing 400010 Peoples R China

BACKGROUND: Since the widespread adoption of laparoscopic cholecystectomy (LC) in the late 1980s, a rise in common bile duct (CBD) injury has been reported. We analyzed the factors contributing to a record of zero CBD injuries in 10 000 consecutive LCs. METHODS: The retrospective investigation included 10 000 patients who underwent LC from July 1992 to June 2007. LC was performed by 4 teams of surgeons. The chief main surgeon of each team has had over 10 years of experience in hepatobiliary surgery. Calot's triangle was carefully dissected, and the relationship of the cystic duct to the CBD and common hepatic duct was clearly identified. A clip was applied to the cystic duct at the neck of the gallbladder and the duct was incised with scissors proximal to the clip. The cystic artery was dissected by the same method. Then, the gallbladder was dissected from its liver bed. A drain was routinely left at the gallbladder bed for 1-2 days postoperatively. RESULTS: No CBD injuries occurred in 10 000 consecutive LCs, and there were 16 duct leaks (0.16%). Among these there were 10 Luschka duct leaks (0.1%) and 6 cystic duct leaks (0.06%). Four hundred thirty cases were converted to open cholecystectomy (OC), giving a conversion rate of 4.3%. After a mean follow-up of 17.5 months (range 6-24 months), no postoperative death due to LC occurred, and good results were observed in 95% of the patients. CONCLUSIONS: In our 10 000 LCs with zero CBD injuries, the techniques used and practices at our department have been successful. Surgeon's expertise in biliary surgery, preoperative imaging, precise operative procedures, and conversion from LC to OC when needed are important measures to prevent CBD injuries.

关键词： laparoscopic cholecystectomy open cholecystectomy common bile duct prevention

Seed Length Controlled by Same Locus in Four Different AA Genome Species of Genus Oryza

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Rice science 2014年第1期21卷 20-28页

作者： ZHANG Yu LI Jing ZHOU Jia-wu XU Peng DENG Xian-neng YANG Fei DENG Wei hu feng-yi TAO Da-yun Institute of Food and Crops Research Yunnan Academy of Agricultural Sciences Life-Sciences School Yunnan University

To broaden the genetic basis and overcome the yield plateau in Asian cultivated rice, the exploitation and utilization of favorable alleles from rice species with the AA genome has become important and urgent in modern breeding programs. Four different interspecific populations were used to detect quantitative trait locus （QTL） for seed length, including a BC4F2 population derived from Oryza glumaepatula crossed with Dianjingyou 1 （a japonica cultivar）, a BC4F2 population derived from O. nivara crossed with Dianjingyou 1, a BCzF1 population derived from a cross between O. Iongistaminata and RD23 （an indica cultivar）, and a BCsF1 population derived from a cross between O. glaberrima and Dianjingyou 1. The QTLs for seed length in four different populations were termed as SL-3a, SL-3b, SL-3c and SL-3d, respectively. They had good collinearity and accounted for 49% to 60% of the phenotypic variations. Sequencing data indicated that four QTLs were different alleles of GS3 which were responsible for the seed length variation between O. sativa and its four AA genome relatives. These results will be valuable for confirming the evolution of GS3 and also be helpful for rice breeding.

关键词： seed length O. glumaepatula O. nivara O. Iongistaminata O. glaberrima quantitative trait locus

双参数非线性非局部奇摄动抛物型初始-边值问题的广义解

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应用数学和力学 2017年第12期38卷 1405-1411页

作者：冯依虎莫嘉琪亳州学院电子与信息工程系安徽亳州236800 安徽师范大学数学计算机科学学院安徽芜湖241003

研究了一类广义抛物型方程奇摄动问题.首先在一定的条件下,提出了一类具有两参数的非线性非局部广义抛物型方程初始-边值问题.其次证明了相应问题解的存在性.然后,通过Fredholm积分方程得到了初始-边值问题的外部解.再利用泛函分析理论... 详细信息

研究了一类广义抛物型方程奇摄动问题.首先在一定的条件下,提出了一类具有两参数的非线性非局部广义抛物型方程初始-边值问题.其次证明了相应问题解的存在性.然后,通过Fredholm积分方程得到了初始-边值问题的外部解.再利用泛函分析理论和伸长变量及多重尺度法,分别构造了初始-边值问题广义解的边界层、初始层项,从而得到了问题的形式渐近展开式.最后利用不动点理论证明了对应的非线性非局部广义抛物型方程的奇异摄动初始-边值问题的广义解的渐近展开式的一致有效性.

关键词：奇异摄动渐近展开一致有效性

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奇摄动方程的广义激波层解（英文）

工程数学学报 2018年第1期35卷 101-109页

作者：冯依虎莫嘉琪亳州学院电子与信息工程系亳州236800 安徽师范大学数学系芜湖241003

研究了一类广义奇摄动反应扩散方程初始边值问题.首先得到了原问题的外部解,然后利用广义函数理论构造了原问题的初始层和内部激波层项的广义渐近解.最后利用泛函分析不动点定理证明了具有广义激波层的渐近解的一致有效性.本文所用方法... 详细信息

研究了一类广义奇摄动反应扩散方程初始边值问题.首先得到了原问题的外部解,然后利用广义函数理论构造了原问题的初始层和内部激波层项的广义渐近解.最后利用泛函分析不动点定理证明了具有广义激波层的渐近解的一致有效性.本文所用方法求得的激波渐近解具有简捷、有效和精度高的特点.

关键词：奇异摄动问题反应扩散方程广义渐近解

一类非线性非局部扰动LGH方程的孤子行波解

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应用数学和力学 2016年第4期37卷 426-433页

作者：冯依虎莫嘉琪亳州学院电子与信息工程系安徽亳州236800 安徽师范大学数学计算机科学学院安徽芜湖241000

利用经过改进的泛函分析变分迭代方法讨论了一类非线性非局部Landau-Ginzburg-Higgs(LGH)微分方程.首先,做行波变换,引入泛函,并求出其变分,令其为0,得到了Lagrange(拉格朗日)算子应满足的条件,并求出它.然后,引入一个经过改进的变分迭... 详细信息

利用经过改进的泛函分析变分迭代方法讨论了一类非线性非局部Landau-Ginzburg-Higgs(LGH)微分方程.首先,做行波变换,引入泛函,并求出其变分,令其为0,得到了Lagrange(拉格朗日)算子应满足的条件,并求出它.然后,引入一个经过改进的变分迭代式,选取初始迭代函数为对应的无扰动LGH方程的孤子解.最后,利用迭代式依次得到非线性非局部LGH扰动方程求出各次孤子行波的渐近解和LGH扰动方程的精确解.通过一个例子说明了用经过改进的泛函分析变分迭代方法得到求解是有效的方法.

关键词：行波非线性非局部

非线性奇摄动积分-微分发展方程Robin问题广义解

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工程数学学报 2021年第4期38卷 564-572页

作者：冯依虎莫嘉琪亳州学院电子与信息工程系亳州236800 上海大学数学系上海200436 安徽师范大学数学与统计学院芜湖241003

讨论了一类广义非线性奇异摄动积分-微分发展方程Robin问题.首先,利用广义Fredholm积分方程求解方法,得到了模型的外部解.其次,引入多重尺度变量,构造了Robin问题解的边界层校正项.然后利用伸长变量,得到了解的初始层校正项,并构造了奇... 详细信息

讨论了一类广义非线性奇异摄动积分-微分发展方程Robin问题.首先,利用广义Fredholm积分方程求解方法,得到了模型的外部解.其次,引入多重尺度变量,构造了Robin问题解的边界层校正项.然后利用伸长变量,得到了解的初始层校正项,并构造了奇异摄动问题的形式解的合成展开式.最后,用泛函分析不动点理论证明了广义解的渐近展开式的一致有效性.

关键词：奇摄动发展方程渐近解

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一类奇摄动双曲型非线性积分-微分系统

华东师范大学学报（自然科学版） 2017年第3期 39-47页

作者：冯依虎莫嘉琪亳州学院电子与信息工程系安徽师范大学数学系

本文研究了一类两参数双曲型非线性积分-微分奇摄动系统.首先利用Fredholm型积分方程,得到了系统的外部解;然后用多重尺度变量方法得到了系统的边界层校正项,再利用伸长变量方法得到了系统的初始层校正项;最后由不动点理论证明了奇摄动... 详细信息

本文研究了一类两参数双曲型非线性积分-微分奇摄动系统.首先利用Fredholm型积分方程,得到了系统的外部解;然后用多重尺度变量方法得到了系统的边界层校正项,再利用伸长变量方法得到了系统的初始层校正项;最后由不动点理论证明了奇摄动解的合成渐近展开式的一致有效性.

关键词：积分-微分方程奇摄动双曲型方程