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Fermentation characteristics of Megasphaera elsdenii J6 derived from pig feces on different lactate isomers

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Journal of Integrative Agriculture 2016年第7期15卷 1575-1583页

作者： jiang xiao-lin SU Yong ZHU Wei-yun jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health College of Animal Science and Technology Nanjing Agricultural University

D-Lactate-utilizing bacteria play important roles in maintaining the balance of gut lactate; however, studies on gut D-lactate-uti-lizing bacteria have been limited. This study aimed to isolate and identify D-lactate-utilizing bacteria from pig gut using the Hungate rol-tube method, and to investigate their metabolic characteristicsin vitro. Six different anaerobes were isolated from pig feces, which were identiifed as related toBacteroides fragilis, Bacteroides acidifaciens,Veilonela denticariosi, Veilonela caviae,Bacteroides uniformis, andMegasphaera elsdenibased on the 16S rRNA gene sequences. Al strains had a signiifcant ability to utilize D-lactate, which was concluded afterin vitro fermentation with 25 mmol L–1 D-lactate as the primary carbon source. Of al 6 strains,M. elsdeniJ6 showed the highest efifciency of D-lactate utilization and produced a higher ratio of butyrate in total short chain fatty acids （SCFAs）. Thus, thein vitro fermentation characteristics of this strain in D-, L-, and DL-lactate mixtures （D-lactate：L-lactate=1：1 or 1：2） were further studied. The results showed that M. elsdeni J6 preferred utilizing D-lactate, and produced more SCFA when using D-lactate as the primary carbon source. The ifndings suggest that the administration of D-lactate-utilizing bacteria such asM. elsdeni J6 may have a potential advantage in the aleviation of D-lactic acidosis in the animal gut.

关键词： D-lactate-utilizing bacteria Megasphaera elsdeni butyrate pig gut

Comparative Study on the Immunogenicity and Efficacy of Different Post-exposure Intramuscular Rabies Vaccination Regimens in China

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Biomedical and Environmental Sciences 2024年第2期37卷 178-186页

作者： SONG Yun HE Ying LU Xue Xin ZHANG xiao Mei jiang xiao lin SONG Qing HUANG Xue Yong MA Hong Xia YU Peng Cheng ZHU Wu Yang Henan Provincial Center for Disease Control and Prevention Infectious Disease Prevention and Control InstituteHenan Provincial Key Laboratory of Infectious Disease PathogensZhengzhou 450000HenanChina National Institute for Viral Disease Control and Prevention China CDCKey Laboratory of BiosafetyNational Health CommissionBeijing 102206China Shandong Provincial Center for Disease Control and Prevention Jinan 250014ShandongChina Qingdao Chengyang District Center for Disease Control and Prevention Qingdao 266108ShandongChina

Objective This study aimed to compare the current Essen rabies post-exposure immunization schedule(0-3-7-14-28)in China and the simple 4-dose schedule(0-3-7-14)newly recommended by the World Health Organization in terms of their safety,efficacy,and *** Mice were vaccinated according to different immunization schedules,and blood was collected for detection of rabies virus neutralizing antibodies(RVNAs)on days 14,21,28,35,and 120after the first ***,different groups of mice were injected with lethal doses of the CVS-11 virus on day 0,subjected to different rabies immunization schedules,and assessed for morbidity and death *** a clinical trial,185 rabies-exposed individuals were selected for post-exposure vaccination according to the Essen schedule,and blood was collected for RVNAs detection on days 28and 42 after the first *** A statistically significant difference in RVNAs between mice in the Essen and 0-3-7-14 schedule groups was observed on the 35th day(P0.05)in RVNAs levels at any time *** post-exposure immune protective test showed that the survival rate of mice in the control group was 20%,whereas that in the immunization groups was 40%.In the clinical trial,the RVNAs positive conversion rates on days 28(14 days after 4 doses)and 42(14 days after 5 doses)were both 100%,and no significant difference in RVNAs levels was observed(P>0.05).Conclusion The simple 4-dose schedule can produce sufficient RVNAs levels,with no significant effect of a delayed fourth vaccine dose(14–28 d)on the immunization potential.

关键词： Rabies Post-exposure immunization Essen regimen RVNAs

Using Pro/E and ANSYS to Build Finite Element Models

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Computer Aided Drafting,Design and Manufacturing 2006年第1期16卷 75-80页

作者： QIAN Jun-mei jiang xiao-hong WANG lin-tao ZHU Hua China University of Mining and Technology Xuzhou 221008 China

Possible alternatives are studied. By comparing the rail-wheel model constructed by these two packages, the benefits of mixed-use of Pro/E and ANSYS for complex assembly modeling are verified.

关键词： finite element modeling Pro/E ANSYS wheel rail

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用不等式确定混凝土泵车支腿最大反力的值域

建筑机械 2006年第3S期26卷 94-96,99页

作者：姜校林湖南省三一重工研究院建机所湖南长沙410100

1概述混凝土泵车支腿反力的大小对支腿、车架等结构设计有直接影响,能否得出简便、通用且具有一定精度的支腿反力解析表达式对泵车的设计十分重要.实际上很难得出解析式,原因有3点:(1)混凝土泵车4个支腿反力的求解属于超静定问题,要根... 详细信息

1概述混凝土泵车支腿反力的大小对支腿、车架等结构设计有直接影响,能否得出简便、通用且具有一定精度的支腿反力解析表达式对泵车的设计十分重要.实际上很难得出解析式,原因有3点:(1)混凝土泵车4个支腿反力的求解属于超静定问题,要根据车架和支腿的变形协调条件列一个辅助方程才能求解.而泵车的车架--支腿体系的构造非常复杂,即使经过若干简化也很难列出辅助方程.(2)辅助方程不仅与泵车自身结构有关,还与地面的刚性有关,而泵车作业地面的刚度因工作场地不同而变化.(3)泵车车架--支腿体系的结构形式多种多样,即便对某一车型求出了支腿反力解析式,对其它泵车也不具有通用性.所以通过变形协调条件列出辅助方程,得到确切的支腿反力解析式的方法,显得力不从心.

关键词：混凝土泵车支腿反力不等式变形协调条件辅助方程值域结构设计解析表达式超静定问题解析式

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机械变矩器构造与应用

建筑机械 2006年第02S期26卷 86-87,95页

作者：姜校林湖南省三一重工研究院建机所湖南长沙410100

液力变矩器能根据外界负荷的变化自动调整输出轴的转速,因而在工程机械领域被广泛采用.液力变矩器的缺点是结构复杂、价格高,且必须有液压源,不适合在小型通用机械上使用.本文提出的机械式自动变矩器(以下简称机械变矩器),具有结构简单... 详细信息

液力变矩器能根据外界负荷的变化自动调整输出轴的转速,因而在工程机械领域被广泛采用.液力变矩器的缺点是结构复杂、价格高,且必须有液压源,不适合在小型通用机械上使用.本文提出的机械式自动变矩器(以下简称机械变矩器),具有结构简单、造价低和使用灵活等特点,按其结构形式的不同,介绍两种机械变矩器--同轴线式和行星齿轮式机械变矩器.

关键词：液力变矩器工程机械应用构造自动调整通用机械轮式机械输出轴液压源机械式

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泵车支腿最佳展角的研究及其图解方法

建筑机械 2006年第10S期26卷 64-65页

作者：姜校林三一重工研究院建机所湖南长沙410100

混凝土泵车支腿的基本形式为摆动型,即支腿的展开是绕固定轴旋转摆动就位的.本文从求解的形成过程着手,分析了支腿在最佳展角布置时所具有的性质,从中获得优化设计方法所无法得出的结论,并由此得出了一种求解支腿最佳展角的简便实用方... 详细信息

混凝土泵车支腿的基本形式为摆动型,即支腿的展开是绕固定轴旋转摆动就位的.本文从求解的形成过程着手,分析了支腿在最佳展角布置时所具有的性质,从中获得优化设计方法所无法得出的结论,并由此得出了一种求解支腿最佳展角的简便实用方法--作图法.

关键词：混凝土泵车支腿图解方法优化设计方法固定轴作图法摆动求解

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上海凌桥水厂不停产提标改造的运行安全控制

中国给水排水 2024年第10期40卷 91-95页

作者：姜晓琳上海浦东威立雅自来水有限公司上海200137

为提升出水水质,保障区域供水安全,上海凌桥水厂实施了深度处理提标改造工程,且施工期间不间断供水。凌桥水厂作为运营方,识别出高压配电改造、新老管道接驳、工程开挖以及调试并网四类工程风险点。通过采取有效措施和进行流程控制,既... 详细信息

为提升出水水质,保障区域供水安全,上海凌桥水厂实施了深度处理提标改造工程,且施工期间不间断供水。凌桥水厂作为运营方,识别出高压配电改造、新老管道接驳、工程开挖以及调试并网四类工程风险点。通过采取有效措施和进行流程控制,既保障了水厂水质水量运行安全,又确保了项目工程按进度计划竣工验收。根据29个月施工配合的实际运营工作情况,总结了提标改造中的技术安全运营管理经验,可为同类老旧水厂提标改造工程决策提供参考。

关键词：凌桥水厂提标改造流程控制

Treatment of postcatheterization femoral arteriovenous fistulas with simple prolonged bandaging

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Chinese Medical Journal 2007年第11期120卷 952-955页

作者： ZHOU Tao LIU Zhen-jiang ZHOU Sheng-hua SHEN Xiang-qian LIU Qi-ming FANG Zhen-fei HU Xin-qun LI jiang LU xiao-lin Department or Cardiology Second Xiangya Hospital Central South University Changsha 410011 China

Background The methods for the treatment of postcatheterization femoral arteriovenous fistulas （AVF-s） - simple observation, ultrasound guided compression, covered stents implantation and coil embolization have poor outcome. Surgery is the standard method for treatment of femoral AVFs, but it is a traumatic operation. In this study, we report the results of the treatment of postcatheterization femoral AVFs by simple prolonged compressing bandage. Methods To treat iatrogenic femoral AVFs caused by transfemoral catheterization, prolonged binding with elastic or common bandage was applied in 16 cases. Catheterization was performed in 7 cases for radiofrequency current catheter ablation, in 4 for occlusion of congenital heart disease, in 3 for percutaneous coronary intervention, in 1 for coronary angiography and in 1 for right heart catheterization. Results All iatrogenic femoral AVFs were healed after simple binding with elastic or common bandage for 4-46 days （mean （15±10） days）. During the period of binding, local skins ulceration occurred at puncture site in two cases and femoral vein thrombus was found in one patient. During 6-24 months （mean （11.8±3.6） months） followup with colour Doppler ultrasonography, no recurrent artedovenous shunting or other complications were observed. Conclusion The results suggest that simple prolonged bandaging for postcatheterization femoral AVFs is an effective and economical procedure.

关键词： arteriovenous fistula catheterization complication

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细菌纤维素复合材料应用进展

现代化工 2017年第11期37卷 57-61页

作者：姜晓琳王诗瀚贵州理工学院食品药品制造工程学院贵州贵阳550003 瓮福(集团)有限责任公司贵州贵阳550002

讨论了细菌纤维素作为催化剂载体、细胞和酶固定化载体、电极、电磁屏蔽材料、纸张增强剂、环保吸附剂、抗菌材料、缓释载体、组织工程材料等方面的应用前景。

关键词：细菌纤维素复合材料载体电极组织工程