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既有房屋结构安全性评价方法研究

工程建设标准化 2024年第9期 85-89页

作者：齐虎罗诗敏费毕刚国质(北京)建设工程检测鉴定中心中国建筑第五工程局有限公司深圳分公司

本文对既有房屋安全评价的概念作了介绍,并对现行主要标准规范中的房屋安全评价方法进行了论述,同时对现有的几种常用安全评价方法作了介绍并分析了其优缺点。房屋建筑结构安全性评定具有不确定性,模糊综合评价法中分布隶属函数可以解... 详细信息

本文对既有房屋安全评价的概念作了介绍,并对现行主要标准规范中的房屋安全评价方法进行了论述,同时对现有的几种常用安全评价方法作了介绍并分析了其优缺点。房屋建筑结构安全性评定具有不确定性,模糊综合评价法中分布隶属函数可以解决现有标准规范中根据承载力评级时等级划分不连续的问题,本文对其进行详细介绍,并对该方法的运算法则及模糊识别方法提出有关建议。

关键词：既有房屋建筑结构安全评价方法

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1例鸡绦虫与鸡球虫混合感染的诊治

现代畜牧科技 2024年第8期 110-112页

作者：罗世民杨甜刘霜莉田小玲怀化职业技术学院湖南怀化418000 湖南省新晃县畜牧水产事务中心湖南新晃418000

鸡绦虫病是一种常见的寄生虫病,主要由寄生于家禽肠道的豇豆科绦虫、四角绦虫属绦虫、绦虫属绦虫及轮体引起。引起腹泻、体重减轻、生长迟缓、产蛋量减少、肠梗阻等临床症状;鸡球虫病是由几种艾美耳球虫寄生鸡肠上皮细胞引起的常见的严... 详细信息

鸡绦虫病是一种常见的寄生虫病,主要由寄生于家禽肠道的豇豆科绦虫、四角绦虫属绦虫、绦虫属绦虫及轮体引起。引起腹泻、体重减轻、生长迟缓、产蛋量减少、肠梗阻等临床症状;鸡球虫病是由几种艾美耳球虫寄生鸡肠上皮细胞引起的常见的严重原虫病,其主要以肉髯苍白、食欲不振、下痢、拉血便及体重减轻等为临床症状。2种虫均能感染各个日龄的鸡,但主要危害于雏鸡,成年鸡感染一般呈隐性感染不出现明显的临床症状。2种虫均可单独致病,严重影响雏鸡的生长发育,但鸡球虫病的危害大于鸡绦虫病。此外,鸡绦虫病及鸡球虫病均呈世界性分布,给全球家禽业带来经济损失。本次诊治过程中,结合临床症状、病理解剖和实验室检查结果,确认该病为绦虫和球虫混合感染。在此基础上,采用阿苯达唑+氨丙啉对鸡进行驱虫治疗,取得了良好的效果。

关键词：鸡绦虫病鸡球虫病诊断治疗预防

Effects of parenteral nutrition with and without GH on the GH/IGF-1 axis after hepatectomy in hepatocellular carcinoma with liver cirrhosis

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Frontiers of Medicine 2007年第3期1卷 287-293页

作者： CAO Jie luo shimin LIANG Lijian LAI Jiaming CHEN Shanming Department of General Surgery Affiliated Guangzhou First Municipal People’s HospitalGuangzhou Medical CollegeGuangzhou 510180China Department of Hepatobiliary Surgery The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510180China Department of Scientific Research and Education Affiliated Guangzhou First Municipal People’s HospitalGuangzhou Medical CollegeGuangzhou 510180China

Postoperative hepatic insulin-like growth factor-1(IGF-1)production may be severely disturbed in patients with liver *** alterations in the GH/IGF-1 axis are thought to play an important role in the protein catabolism that complicates major surgical *** aim of this study was to explore the effects of parenteral nutrition(PN)with and without growth hormone(GH)on the GH/IGF-1 axis after hepatectomy for hepatocellular carcinoma(HCC)with cirrhosis and evaluate the potential roles of recombinant human GH(rhGH)***-four patients with HCC with cirrhosis who underwent hepatectomy were randomly divided into two groups:a PN group(n=12)and an rhGH+PN group(n=12).Liver function,serum GH,IGF-1 and IGFBP-3 were measured before the operation and at postoperative days(POD)1 and ***-like growth factor-1 and IGFBP-3 mRNA in the liver tissue was detected by *** liver Ki67 immunohistochemistry staining was *** the same time,12 patients with cholelithiasis or liver hemangioma who underwent operation served as normal control *** POD 6,serum prealbumin,GH,IGF-1,IGFBP-3,hepatic IGF-1 mRNA,IGFBP-3 mRNA and liver Ki67 LI were higher in the rhGH+PN group than in the PN *** was no significant difference in the 6-and 12-month tumor-free survival rate and the median tumor-free survival time between the PN group and the rhGH+PN group(P>0.05).These data indicate that rhGH+PN could ameliorate the changes in the GH/IGF-1 axis after hepatectomy for HCC in the setting of cirrhosis.

关键词： carcinoma,hepatocellular parenteral nutrition growth hormone insulin-like growth factor I insulin-like growth factor binding protein 3

Guangfu,Hometown of Wushu

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China Today 1994年第9期43卷 22-25页

作者： luo shimin

Sports fans across the world usually content themselves with simply watching their favorite athletic *** Guangfu they not only watch taijiquan,they acthually do *** of them---kids to grannies.

关键词： Guangfu,Hometown of Wushu

Fat deposition and partitioning for meat production in cattle and sheep

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Animal Nutrition 2024年第2期17卷 376-386页

作者： shimin Liu Yanyan Yang Hailing luo Wenjie Pang Graeme B.Martin The UWA Institute of Agriculture The University of Western Australia Institute of Animal Husbandry of Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences College of Animal Science and Technology of China Agricultural University Resonance Health Burswood

In markets for beef and sheep meat, an appropriate level of intramuscular fat(IMF) is highly desirable for meat-eating quality, but strategies to improve it usually lead to an undesirable excess in carcase fat,presenting a major challenge to livestock producers. To solve this problem, we need to understand the partitioning of fat among the major fat depots: IMF, subcutaneous fat(SCF) and visceral fat(VF). In most genotypes of cattle and sheep, the rate of accretion is lower for IMF than for SCF and VF, so genetic selection for a high level of IMF, or the use of an increased dietary energy supply to promote IMF deposition, will increase overall fatness and feed costs. On the other hand, feeding postnatal calves with excessive concentrates promotes IMF deposition, so a nutritional strategy is feasible. With genetic strategies, several problems arise: 1) positive genetic correlations between IMF, SCF and VF differ among genotypes in both cattle and sheep; 2) genotypes appear to have specific, characteristic rates of accretion of IMF during periods of growth and fattening; 3) most breeds of cattle and sheep naturally produce meat with relatively low levels of IMF, but IMF does vary substantially among individuals and breeds so progress is possible through accurate measurement of IMF. Therefore, an essential prerequisite for selection will be knowledge of the genetic correlations and fat accretion rates for each genotype. Currently,selection for IMF is based on existing technology that directly measures IMF in the progeny or siblings, or estimates IMF in live animals. New technology is needed to permit the simultaneous measurement of SCF and IMF in the field, thus opening up the possibility of accurate selection, particularly for fat partitioning in live animals. Specifically, there would be great value in detecting individuals with an IMF advantage at an early age so the generation interval could be shortened and genetic gain accelerated. Genetic gain would also be grea

关键词： Fat depot Fat partition Intramuscular fat Feed efficiency Bovine Ovine

Shape Detection for Impeller Blades by Non-contact Coordinate Measuring Machine

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Shape Detection for Impeller Blades by Non-contact Coordinat...

Computer and Computing Technologies in Agriculture IV——4th IFIP TC 12 Conference(CCTA2010) Part IV

作者： shimin luo School of Railway Tracks and Transportation East China Jiaotong University

The impeller blades are very important and precise parts in turbine,but they can be worn and deformed *** this paper,we present a novel approach to detect the shape of the impeller *** proposed approach is to compare the designed 3D model of the impeller blades with the virtual 3D model of the tested part which is reconstructed by non-contact coordinate measuring *** non-contact coordinate measuring machine measures an object with optical triangulation,and then we can reconstruct a virtual 3D model for the *** contrast to previous approaches which detect the parts with complex surface,the proposed shape detection approach is scatheless and *** results also show that our approach gets the shape of the tested part precisely and describes the deformed condition clearly.

关键词： Impeller blade Non-contact coordinate measuring machine Shape detection Optical triangulation Complex surface 3D reconstruction.

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梦呓与窥视:欲望表达的文本与影像

当代电影 2014年第6期 184-186页

作者：罗诗旻浙江大学人文学院比较文学与世界文学研究所浙江工业大学之江学院讲师310028

《洛丽塔》的小说与电影以不同的方式对欲望进行了呈现,展开了两种身体与叙述的关系。通过从两种呈现的对象、方式和受众对其小说和电影进行分析,可以从两种呈现的并置与互动中揭示出从文本作品转变为影像作品的过程为作品本身及其接受... 详细信息

《洛丽塔》的小说与电影以不同的方式对欲望进行了呈现,展开了两种身体与叙述的关系。通过从两种呈现的对象、方式和受众对其小说和电影进行分析,可以从两种呈现的并置与互动中揭示出从文本作品转变为影像作品的过程为作品本身及其接受者所带来的重要改变。

关键词：文本影像欲望叙事

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某载货车储气筒支架振动分析及其优化设计

机械设计与研究 2021年第2期37卷 154-158页

作者：罗世民华东交通大学南昌330013

针对某载货车储气筒支架的开裂问题,首先基于储气筒总成有限元模型对其进行模态分析,分析结果表明其前两阶固有频率与发动机激励频率重合,会产生共振,不满足动态特性要求。再采集车架端的激励信号,对其进行频率响应分析,分析结果表明其... 详细信息

针对某载货车储气筒支架的开裂问题,首先基于储气筒总成有限元模型对其进行模态分析,分析结果表明其前两阶固有频率与发动机激励频率重合,会产生共振,不满足动态特性要求。再采集车架端的激励信号,对其进行频率响应分析,分析结果表明其应力水平超过材料屈服,并且危险点与开裂区域相符,不满足强度性能要求。再采用邻域培植多目标遗传算法对储气筒支架的结构参数进行优化设计,优化之后其低阶频率大于外界激励频率,其应力值减小了40.3%,满足振动性能要求。最后对其进行整车道路试验与测试,测试结果表明其应力测试值与仿真值的精确度为98.4%,优化后储气筒的振幅减小了36.8%,优化效果显著,并且解决了某载货车储气筒支架的开裂问题。

关键词：开裂模态频率响应强度振动优化

Studies on Growth-promoting Function and Mechanism of Extract from Grape Seed and Sweet Wormwood on Monopterus albus

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Agricultural Biotechnology 2019年第4期8卷 86-89,91页

作者： Guangzhong HUANG Zhongbo LI shimin luo Xu YANG Keyu XIAO Hui HU Peirong XIE College of animal science and technology HuaiHua Vocational and Technical CollegeHuaihua 418000China Hunan Agricultural University Changsha 410128China

[Objectives]The effect and mechanism of grape seed and sweet wormwood extract on growth of Monopterus albus were studied.[Methods]1 500 healthy *** with average mass of 23.8 g/tail were randomly divided into 5 *** control group was fed with basal diet and the experimental groups were fed with 10,20,30 and 40 g/kg of grape seed and sweet wormwood extract,*** growth performance of the fish was measured after 60 d of feeding at 23-28℃.[Results]The addition of grape seed and sweet wormwood extract in basal diet could increase the body weight gain rate,specific growth rate and protein efficiency,and decrease the feed *** activity of digestive enzymes,glutamic-oxaloacetic transaminase,glutamic-pyruvic transaminase,blood alkaline phosphatase and serum total protein was increased,and the contents of blood glucose and triglyceride were *** with the control group,the above indexes showed significant difference(P0.05)when the dosage was 10 and 40 g/kg(P>0.05).[Conclusions]As a feed additive,the plant extract from grape seed and sweet wormwood could increase digestive enzyme activity and regulate blood biochemical parameters of fish *** had the function of promoting the digestion and absorption,enhancing the metabolic activity of 3 main nutrients,and hastening the growth of fish.

关键词： Monopterus albus Growth promotion Plant extracts Grape seed Sweet wormwood