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Chinese Medical Journal 2015年第21期128卷 2964-2966页

作者： Zheng zhao Xi-wan Liu Jun Jia Lin Cai Jian-Zhong Zhang Department of Dermatology Peking University Peopte's Hospital Beijing 100044 China

INTRODUCTIONLeprosy caused by Mvcobacterium leprae （M. leprae）, is a chronic granulomatous disease affecting the skin and peripheral nervous system, which is transmitted through direct contact with nontreated or inadequate treatment patients. Diagnosis of leprosy depends on the clinical signs and symptoms and slit skin smear positivity. However, it＇s sometimes similar with other granulomatous disease caused by mycobacterial infection. Early stage leprosy is difficult to diagnose by clinical criterion alone because the sensitivity of acid-fast bacilli staining is quite low. The polymerase chain reaction-restriction fragment length polymorphism （PCR-RFLP） shows the great advantage in rapid identification and diagnosis for early cases and has a differentiation between leprosy and nonleprosy cases.

关键词： Heat Shock Protein 65 Gene Mycobacterium Leprae Polymerase Chain Reaction-restriction Fragment LengthPolymorphism

成年人血清维生素D与血清尿酸的交互作用对血压升高的影响

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中华高血压杂志（中英文） 2024年第4期32卷 344-353页

作者：王倩倩苗鑫蕾唐桂敏胡曼玲刘爽牛相钧赵婉冷松大连医科大学附属第二医院健康管理中心辽宁大连116023

目的探讨血清维生素D与血清尿酸的交互作用是否对血压升高产生影响。方法选取2020年1月1日到2022年9月30日大连医科大学附属第二医院健康管理中心的7 951名受检者进行横断面研究。使用限制性立方样条分析血清维生素D、血尿酸与血压升... 详细信息

目的探讨血清维生素D与血清尿酸的交互作用是否对血压升高产生影响。方法选取2020年1月1日到2022年9月30日大连医科大学附属第二医院健康管理中心的7 951名受检者进行横断面研究。使用限制性立方样条分析血清维生素D、血尿酸与血压升高的剂量反应关系。在广义相加模型中,利用多因素分析各变量与血压升高的关系,并结合相乘相加分层交互模型探讨血清维生素D、血尿酸的交互作用对血压升高的影响。结果研究对象平均年龄(42.6±11.2)岁,高血压检出率为12.14%(965/7 951)。随着血清维生素D浓度的增加,血压升高(正常高值+高血压)的风险下降,但血压升高的风险随着血清尿酸含量的增加而上升。与血清维生素D充足且血尿酸正常者比较,血清维生素D不足且血尿酸高时,正常高值血压风险的OR值为1.54(95%CI 1.22~1.94,P600μmol/L时,血压升高的风险达到最高。结论血清维生素D与血尿酸对血压升高存在交互作用。当血清维生素D不足且血尿酸高时,高血压风险达到最大。

关键词：维生素D 尿酸血压交互作用

基于传感器和现场总线技术的轴承压装线自动控制系统

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自动化技术与应用 2024年第5期43卷 35-38,162页

作者：赵万生苗群王蕊颜士伟国能铁路装备有限公司榆林车辆维修分公司陕西榆林719300 齐齐哈尔四达铁路设备有限责任公司黑龙江齐齐哈尔161000

轴承压装线自动控制能够减少压装力,设计基于传感器和现场总线技术的轴承压装线自动控制系统。在系统硬件部分,重点设计控制器及周边电路、传感器与CAN总线控制器。在系统软件部分,计算压装力及过盈量,将PID控制方法应用到轴承压装线控... 详细信息

轴承压装线自动控制能够减少压装力,设计基于传感器和现场总线技术的轴承压装线自动控制系统。在系统硬件部分,重点设计控制器及周边电路、传感器与CAN总线控制器。在系统软件部分,计算压装力及过盈量,将PID控制方法应用到轴承压装线控制中,实现轴承压装线自动控制。实验结果表明,此次研究的传感器和现场总线技术的轴承压装线自动控制系统控制后压装力为400 kN左右,满足规定需求,同时,减少了偏移量与磨损情况,满足方法设计需求。

关键词：传感器现场总线技术轴承压装线 PID控制控制系统

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五个小麦品种麸皮脂质成分分析

麦类作物学报 2024年第7期44卷 871-877页

作者：王嘉欢陈晓杰张福彦范家霖程仲杰赵婉李好海孔凡彬张建伟河南省科学院同位素研究所有限责任公司/河南省核农重点实验室河南郑州450052 河南省植物保护植物检疫站河南郑州450002 河南科技学院河南新乡453003

小麦麸皮中有一定量对人体健康有益的脂质成分,这些脂质可以作为优质植物原材料应用于食品或工业生产。为了解不同小麦品种麸皮的脂质组成,用乙酸乙酯萃取法提取脂质,并进行硅烷化衍生处理,建立气相色谱-质谱(GC-MS)联用法测定了5个小... 详细信息

小麦麸皮中有一定量对人体健康有益的脂质成分,这些脂质可以作为优质植物原材料应用于食品或工业生产。为了解不同小麦品种麸皮的脂质组成,用乙酸乙酯萃取法提取脂质,并进行硅烷化衍生处理,建立气相色谱-质谱(GC-MS)联用法测定了5个小麦品种的麸皮脂质成分及含量。结果表明,从麸皮脂质中共鉴定出20种化合物,可归纳为游离脂肪酸、烷基间苯二酚(ARs)、甾醇(β-谷甾醇、菜油甾醇、豆甾烷醇)、单酰基甘油酯、甲基烷基间苯二酚和烷烃等六大类。ARs(相对含量31.8%~41.7%)和游离脂肪酸(相对含量24.0%~31.3%)在总脂质中占比较高,甾醇含量次之,其他化合物含量较少。ARs由侧链长度为17~25奇数链烷烃组成,二十一烷基间苯二酚含量(732.7~1158.4μg·g^(-1))显著高于ARs其他同系物(P<0.05)。不同小麦品种麸皮的脂质各组分含量不同,且品种之间存在显著差异,西农979和淮麦21中的ARs含量最高。

关键词：小麦麸皮气相色谱-质谱烷基间苯二酚游离脂肪酸甾醇

Rule acquisition of three-way semi-concept lattices in formal decision context

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CAAI Transactions on Intelligence Technology 2024年第2期9卷 333-347页

作者： Jie zhao Renxia wan Duoqian Miao Boyang Zhang School of Mathematics and Information Science North Minzu UniversityYinchuanNingxiaChina Department of Computer Science and Technology Tongji UniversityShanghaiChina Department of Computer Science Bowling Green State UniversityBowling GreenOhioUSA

Three-way concept analysis is an important tool for information processing,and rule acquisition is one of the research hotspots of three-way concept ***,compared with three-way concept lattices,three-way semi-concept lattices have three-way operators with weaker constraints,which can generate more *** this article,the problem of rule acquisition for three-way semi-concept lattices is discussed in *** authors construct the finer relation of three-way semi-concept lattices,and propose a method of rule acquisition for three-way semi-concept *** authors also discuss the set of decision rules and the relationships of decision rules among object-induced three-way semi-concept lattices,object-induced three-way concept lattices,classical concept lattices and semi-concept ***,examples are provided to illustrate the validity of our conclusions.

关键词： finer relation rule acquisition three-way concept analysis three-way semi-concept lattices

Synthesis,Crystal Structure and Photoluminescence of a Dinulear Copper Complex

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Chinese Journal of Structural Chemistry 2018年第10期37卷 1645-1650页

作者： LI Xiao-Ning WU Xiao-Yuan zhao wan-wan YANG Ming-Xue YU Rong-Min LU Can-Zhong CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of Sciences College of Chemistry and Materials Science Fujian Normal University

A binuclear cuprous complex [Cu（μ-I）（NPPh）]2（1,NPPh = 1-（2-（diphenylphosphanyl）phenyl）-3-phenyl-4,5-dihydro-1 H-pyrazole） was synthesized and characterized by elemental analysis,NMR and X-ray single-crystal structure *** crystallizes in triclinic space group P2_1/n with a = 10.7520（3）,b = 18.1860（5）,c = 11.8487（3）？,β = 91.864（2）,V = 2315.61（11）？~3,Z = 4,Mr = 594.87,Dc = 1.706 g/cm^3,F（000） = 1176.0,μ = 12.582 mm（-1）,GOOF = 1.048,the final R = 0.0289 and wR = 0.0670 for 3787 observed reflections with I 〉 2σ（I）.The Cu atoms in the complex are four-coordinated and adopt distorted tetrahedral coordination *** the solid state,the complex exhibits greenish yellow photoluminescence with a peak maximum of 533 nm,a decay time of 34 μs,and a photoluminescence quantum yield of 63.6% at room temperature,respectively.

关键词： cuprous complex crystal structure emissive property

Failure criteria of unreinforced masonry walls of rural buildings under the impact of flash floods in mountainous regions

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Journal of Mountain Science 2022年第12期19卷 3388-3406页

作者： SI Guang-wu CHEN Xiao-qing CHEN Jian-gang zhao wan-yu LI Shuai LI Xiang-ning Key Laboratory of Mountain Hazards and Earth Surface Process Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu610041China China-Pakistan Joint Research Center on Earth Sciences CAS-HECIslamabad45320Pakistan University of Chinese Academy Sciences Beijing100049China

Damage to rural buildings in mountainous regions caused by flash floods accounts for a significant proportion of economic losses from *** unreinforced masonry(URM)wall is the most vulnerable structural element of rural buildings exposed to flash *** failure of a URM wall indicates damage to rural buildings in flash *** on the yield line theory of out-of-plane damage of URM walls and the virtual work method,brittle failure criteria for URM walls under the impact of flash floods were *** to the field investigation data of the 26 June 2020 flash flood event in Damawu Gully and the corresponding simulation results of FLO-2D,the disaster-causing process was analysed,and the failure criteria were *** building parameters were identified to influence the flood-resistance of URM walls,including the mortar grade,the span-to-height ratio of the wall,and the number of floors of the rural *** results showed that the cause of the 26June disaster was the diversion of a 50-year flash flood into the residential community on the alluvial *** affected buildings were constructed with hollow blocks and lacked flood-resistance *** critical failure depth of a URM wall restrained at the top by ring beams(RBs)under hydrostatic load conditions is 1.17 to 1.20 times greater than that of a URM wall without RBs,and the difference is even more pronounced when lowerstrength mortar is *** flood-resistance of a URM wall constructed with Mb 7.5 mortar and restrained by RBs is almost as strong as that of a URM wall constructed with Mb 20 mortar and without *** span-to-height ratio of a URM wall should not be greater than 1.875 in this ***,the flood-resistance of a URM wall with RB restraint is almost independent of the span-to-height *** brittle fracture energy of masonry mortar is more crucial to the flood-resistance of 4-edge restrained URM walls if L/Z>*** flood-resistance of the URM wa

关键词： Flash flood Rural buildings Unreinforced masonry wall Failure criteria Flood-resistance

Impact failure models and application condition of trees in debris-flow hazard mitigation

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Journal of Mountain Science 2021年第7期18卷 1874-1885页

作者： JIN Ke CHEN Jian-gang CHEN Xiao-qing zhao wan-yu SI Guang-wu GONG Xing-long Key Laboratory of Mountain Hazards and Earth Surface Process Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu 610041China China-Pakistan Joint Research Center on Earth Sciences CAS-HECIslamabad 45320Pakistan University of Chinese Academy Sciences Beijing 100049China

Forestry has played an important role in hazard mitigation associated with debris *** forest mitigation measures refer to the experience of soil and water conservation,which disregard the destructive effect of debris flows,causing potentially serious *** of the effect of a forest on reducing debris-flow velocity and even stopping debris flows requires distinguishing between when the debris flow will destroy the forest and when the trees will withstand the debris-flow impact *** this paper,we summarized two impact failure models of a single tree: stem breakage and *** influences of different tree sizes characteristics(stem base diameter,tree weight,and root failure radius) and debris-flow characteristics(density,velocity,flow depth,and boulder diameter) on tree failure were *** observations obtained from the model adopted in this study show that trees are more prone to stem breakage than *** an increase in tree size,the ability to resist stem breakage and overturning ***-flow density influences the critical failure conditions of trees substantially less than the debrisflow velocity,depth,and boulder *** application conditions of forests in debris-flow hazard mitigation were proposed based on the analysis of the model *** proposed models were applied in the Xiajijiehaizi Gully as a case study,and the results explain the destruction of trees in the forest dispersing *** work provides references for implementing forest measures for debris-flow hazard mitigation.

关键词： Trees Impact failure model Forest application condition Debris flow mitigation

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新疆奇台地区某猪场猪链球菌耐药性分析

动物医学进展 2024年第2期45卷 29-34页

作者：吴海潮陈万昭吴慧敏夏盼盼刘泽鹏夏利宁新疆农业大学动物医学学院新疆乌鲁木齐830052 新疆草食动物新药研究与创制重点实验室新疆乌鲁木齐830052

新疆奇台地区某猪场因感染猪链球菌引起病死率升高,为提高抗菌药物对猪链球菌病的疗效,从该猪场健康猪(25头)、患病猪(60头)的鼻拭子样品及病死猪(27头)的脏器和组织液样品中分离猪链球菌,对其进行药敏试验及相关耐药基因检测。对采集的... 详细信息

新疆奇台地区某猪场因感染猪链球菌引起病死率升高,为提高抗菌药物对猪链球菌病的疗效,从该猪场健康猪(25头)、患病猪(60头)的鼻拭子样品及病死猪(27头)的脏器和组织液样品中分离猪链球菌,对其进行药敏试验及相关耐药基因检测。对采集的135份样品(85份鼻拭子样、27份组织液样和23份脏器样)进行猪链球菌的分离鉴定,采用琼脂稀释法进行药敏试验,通过PCR方法检测相关耐药基因和毒力基因。结果表明,共分离到猪链球菌19株,分离率为14.1%,从来自健康猪的样品中未分离到猪链球菌。该场猪链球菌对恩诺沙星、红霉素、四环素、阿米卡星和替米考星5种抗菌药物的耐药率高达100%,对氨苄西林和庆大霉素耐药率高达94.7%,对氟苯尼考和青霉素耐药率较低,分别为26.3%和21.1%;均为多药耐药菌株,7耐的菌株数量最多(57.9%,11/19)。tetM、ermB基因检出率均高于90.0%,tetO、lsa(E)和tetL基因检出率分别为21.2%、21.1%和10.5%,检出3株携带噁唑烷酮类多药耐药基因optrA的菌株,未检出ermA、mefA和cfr基因;6种毒力基因均有检出,其中orf2基因检出率最高,为52.6%,fbps基因检出率最低,为5.2%。除了对青霉素和氟苯尼考较为敏感之外,其余均为6耐以上,耐药基因携带率高,建议该猪场结合猪链球菌的分离率和耐药性检测结果,对猪进行合理的用药安排。

关键词：猪链球菌耐药性耐药基因毒力基因

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不同电激励方式对桥带电点火器的性能影响

火工品 2024年第1期 1-6页

作者：郭凯韩克华赵婉君杨康吴琴钟丁茂元王红刚程涛陕西应用物理化学研究所陕西西安710061 北京理工大学爆炸科学与技术国家重点实验室北京100081

为解决恒流发火在多点点火时的电源功耗和线缆能量损耗等问题,提出了采用电容放电激励方式起爆桥带电点火器,开展电容放电激励下桥带换能元的伏安特性、能量转换特性研究,并对比电容放电及恒流两种激励方式下桥带换能元的作用特性及桥... 详细信息

为解决恒流发火在多点点火时的电源功耗和线缆能量损耗等问题,提出了采用电容放电激励方式起爆桥带电点火器,开展电容放电激励下桥带换能元的伏安特性、能量转换特性研究,并对比电容放电及恒流两种激励方式下桥带换能元的作用特性及桥带电点火器的输出特性。研究表明:采用电容放电激励起爆桥带换能元时,电容容值和充电电压的增加对桥带换能元的放电电压和电流峰值、断桥时间、能量利用率影响较大,达到桥带起爆的有效能量均为0.17J;采用电容放电激励方式时,桥带出现电爆炸现象,而采用恒流激励时桥带出现电热现象,两种不同电激励下双桥之间能量加载互不干扰;相比电容放电激励方式,采用恒流激励起爆电点火器时的建压时间、峰值压力及峰值时间均较大。

关键词：桥带电点火器电激励桥带换能元能量利用率