检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

消防服的服用性能研究综述

中国个体防护装备 2015年第3期 12-17页

作者：凌文漪罗翠香王婉萍龚小舟武汉纺织大学纺织科学与工程学院武汉430200

全世界有成千上万个组织、数百万名训练有素的消防员从事消防工作。本文从消防员所面临的危害及工作需求,讨论了对消防员防护服的要求,尤其是服装的耐热性和阻燃性。文章总结了此类服装性能的衡量标准,讨论了消防服的结构与设计、常用... 详细信息

全世界有成千上万个组织、数百万名训练有素的消防员从事消防工作。本文从消防员所面临的危害及工作需求,讨论了对消防员防护服的要求,尤其是服装的耐热性和阻燃性。文章总结了此类服装性能的衡量标准,讨论了消防服的结构与设计、常用材料、热应力问题以及吸湿对热保护的影响等,并介绍了消防服的选择和护理以及如何定义其有效使用寿命的问题,还讨论了未来趋势对消防服发展的影响。

关键词：消防服任务环境材料设计尺码使用保养智能织物

胎盘生长因子水平与胎心监护及子痫前期孕妇胎儿宫内生长受限的关联性研究

在线全文

学校读者我要写书评

暂无评论

河北医学 2024年第9期30卷 1505-1509页

作者：林文毅王晴翁美娟陈凯锐中国人民解放军南部战区总医院广东广州510010

目的:分析胎盘生长因子水平与胎心监护及子痫前期孕妇胎儿宫内生长受限的关联性。方法:以2020年6月至2023年6月于本院确诊的子痫前期孕妇131例为研究对象,依据其是否合并胎儿宫内生长受限分为子痫前期未合并胎儿生长受限组(n=70)及子痫... 详细信息

目的:分析胎盘生长因子水平与胎心监护及子痫前期孕妇胎儿宫内生长受限的关联性。方法:以2020年6月至2023年6月于本院确诊的子痫前期孕妇131例为研究对象,依据其是否合并胎儿宫内生长受限分为子痫前期未合并胎儿生长受限组(n=70)及子痫前期合并胎儿生长受限组(n=61)。所有研究对象均进行胎盘生长因子水平检测,并在孕周28周以上进行胎心监护。并以受试者特征工作(ROC)曲线分析胎盘生长因子对子痫前期孕妇合并胎儿宫内生长受限的评估价值。结果:子痫前期合并胎儿生长受限组的胎盘生长因子水平低于子痫前期未合并胎儿生长受限组(P<0.05);子痫前期合并胎儿生长受限组的胎心监护异常率高于子痫前期未合并胎儿生长受限组(P<0.05);ROC曲线分析结果显示,胎盘生长因子评估子痫前期孕妇胎儿宫内生长受限的曲线下面积(AUC)为0.797,灵敏度为91.80%,特异性为57.14%。结论:胎盘生长因子水平与胎心监护及子痫前期孕妇胎儿宫内生长受限密切相关,通过胎盘生长因子检测及胎心监护可为子痫前期孕妇胎儿宫内生长受限的评估提供参考。

关键词：子痫前期胎儿宫内生长受限胎盘生长因子胎心监护相关性评估价值

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

正念训练对老年认知功能干预的系统综述

中国心理卫生杂志 2024年第6期38卷 500-509页

作者：魏依婷范少霞关青张洁婷林雯仪罗跃嘉张浩波深圳大学心理学院广东深圳518060 深圳市神经科学研究院广东深圳518107 深港脑科学创新研究院广东深圳518055 脑科学与视觉认知研究中心昆明理工大学昆明650031 曲阜师范大学教育学院山东曲阜273100

关于正念训练对老年认知功能的干预效果,以往的研究显示出不一致的结果,目前尚缺乏相关的系统性文献综述。按照训练方法和老年人群的分类标准,本文将纳入的文献中的认知功能干预结果进行梳理、归纳和总结。结果表明正念训练的干预效果... 详细信息

关于正念训练对老年认知功能的干预效果,以往的研究显示出不一致的结果,目前尚缺乏相关的系统性文献综述。按照训练方法和老年人群的分类标准,本文将纳入的文献中的认知功能干预结果进行梳理、归纳和总结。结果表明正念训练的干预效果与认知衰退程度和训练方法有关:标准化和非标准化的正念训练均能提高正常老年和主观认知下降老年的认知功能;但随着干预对象的认知衰退程度的加重,训练效果逐渐降低,在轻度认知障碍患者中的效果不一致,在痴呆患者中效果均不显著。

关键词：正念训练老年认知

Physiological responses in vitamin C system during hibernation in juvenile Chinese soft-shelled turtle Pelodiscus sinensis

在线全文

学校读者我要写书评

暂无评论

Journal of Oceanology and Limnology 2019年第2期37卷 767-776,I0001-I0011页

作者： CHEN Bojian NIU Cuijuan YUAN lin ZHANG wenyi College of Animal Science and Technology Northwest Agriculture and Forestry University Yangling 712100 China Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering College of Life Sciences Beijing Normal University Beijing 100875 China

Vitamin C (Vc) is an important antioxidant that helps turtles tolerating stressful environment. This work quantified changes in tissue Vc levels during winter hibernation in the soft-shelled turtle Pelodiscus sinensis , to reveal the stress response pattern of tissue Vc during hibernation and contribute basic data for turtle culture. We sampled juvenile soft-shelled turtles at pre-hibernation (17.0°C mud temperature;MT), during hibernation (5.8°C MT) and after arousal (20.1°C MT) in the field. The transcript levels of the gene encoding L-gulonolactone oxidase (GLO), the key enzyme for Vc synthesis, decreased significantly during hibernation. However, GLO activity did not match the GLO transcription patterns and remained stable during hibernation, and showed temperature-dependent kinetic characteristics. Vitamin C levels in the brain, liver, kidney, and spleen (but not muscle) all decreased significantly during hibernation, but recovered to pre-hibernation levels or even higher levels after arousal. The soft-shelled turtle endured 5 months of hibernation with no significant oxidative damage in most tissues, except in the spleen. Splenic Vc was nearly exhausted during hibernation, accompanied by a significantly elevated malonaldehyde (MDA) level. Although the high level of oxidative damage quickly decreased after arousal, the potential tissue damage in the spleen during hibernation might account for the weakened immune capacity of turtles after hibernation.

关键词： Chinese soft-shelled turtle hibernation reactive oxygen species (ROS) L-gulonolactone oxidase oxidative stress

在线全文

学校读者我要写书评

暂无评论

传染病重症医学规范化管理初步探讨

现代医院 2018年第10期18卷 1411-1413,1416页

作者：吴锋耀董文逸林艳荣刘升南宁市第四人民医院/广西艾滋病治疗中心广西南宁530023

一直以来,传染病医院重症医学在应对重大传染性疾病以及突发、新发传染病的救治工作中发挥着重要作用,作为传染性疾病专科诊治的医院,由于多种原因,重症医学发展面临人才缺乏,竞争力不足等多种问题。传染病重症医学起步晚,发展缓慢,综... 详细信息

一直以来,传染病医院重症医学在应对重大传染性疾病以及突发、新发传染病的救治工作中发挥着重要作用,作为传染性疾病专科诊治的医院,由于多种原因,重症医学发展面临人才缺乏,竞争力不足等多种问题。传染病重症医学起步晚,发展缓慢,综合实力弱,通过对本院的重症医学建设和发展,探讨传染病医院重症医学的发展系统化和规范化建设。

关键词：传染病重症医学规范管理

对宫颈细胞学ASC-H患者进行反馈性HPV检测的临床意义

在线全文

学校读者我要写书评

暂无评论

泸州医学院学报 2015年第4期38卷 413-416页

作者：林文毅陈颖王世凤胡志敏赖娜王敏成都市妇女儿童中心医院病理科四川成都610031

目的：探讨宫颈非典型鳞状上皮-不除外高度病变（atypical squamous cell cannot exclude high-grade squamous intraepithelial lesion，ASC-H）的妇女进行反馈性HPV（human papilloma virus. HPV）检查的临床意义。方法：回顾性分析2012年6月至2014年6月的197例ASC-H患者的反馈性HPV和病理组织学检查结果。结果：收取我院2012年6月至2014年6月我院所有宫颈细胞学检查诊断为ASC-H患者共197例，并有反馈性HPV检测和宫颈组织学检查结果共有124例；均为女性，年龄25-63岁，平均年龄约46岁；临床以宫颈糜烂、同房后出血、体检等方式就诊。其中HPV阳性患者共92例，组织病理学检查结果为炎症及正常的22例，约占23.91%，低级别子宫颈上皮内瘤变15例，约占16.3%，高级别子宫颈上皮内瘤变45例，癌10例，约占59.78%；HPV阴性患者共32例，其中组织病理学检查结果为炎症及正常的23例，约占71.88%，低级别子宫颈上皮内瘤变（CINI）8例，约占25%，高级别子宫颈上皮内瘤变（CINII）1例，约占3.12%，CINIII及鳞癌均未检出。由此可见HPV检测对宫颈高级别上皮内病变及癌有较高的预测值，HPV阳性的ASC-H患者发生高级别宫颈上皮内病变和宫颈癌的风险高于HPV阴性组（P〈0.05），差异有统计学意义。结论：对所有宫颈细胞学ASC-H患者进行反馈性HPV检测是非常有益的，有助于为患者提供合理的、个性化的治疗方案，避免过度检查及过度治疗，降低患者的焦虑感。

关键词：子宫颈上皮内瘤变宫颈癌

A novel multistage anoxic/aerobic process with sludge regeneration zone (R-MAO) for advanced nitrogen removal from domestic sewage

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2023年第2期124卷 758-768页

作者： lin Cao Rong Sun wenyi Dong Hongjie Wang Zhongyi Dai Xue Wang Jin Xie Hua Li School of Chemical Engineering Huaqiao UniversityXiamen 361021China State Key Laboratory of Urban Water Resource and Environment School of Environment Harbin Institute of TechnologyHarbin 150090China School of Civil and Environmental Engineering Harbin Institute of Technology ShenzhenShenzhen 518055China Central and Southern China Municipal Engineering Design&Research Institute Co. Ltd.Wuhan 430010China Shenzhen Water Group Co. Ltd.Shenzhen 518000China

To achieve advanced nitrogen removal from actual municipal sewage,a novel multistage anoxic/aerobic process with sludge regeneration zone(R-MAO)was *** reactor was used to treat actual domestic sewage and the nitrogen removal capacity of the sludge regeneration zone(R zone)was investigated during the long-term *** best performance was obtained at the R zone’s Oxidation-Reduction Potential(ORP)of-50±30 mV and hydraulic residence times(HRT)of 1.2 *** average effluent COD,TN,NH_(4)^(+)-N and NO_(3)^(−)-N of the R-MAO process were 18.0±2.3,7.5±0.6,1.0±0.5 and 4.6±0.4 mg/L,respectively,with the corresponding removal efficiency of COD,TN and NH_(4)^(+)-N were 92.9%±1.0%,84.1%±1.5% and 97.5%±1.1%.Compared to the sole MAO system,the TN removal efficiency of the R-MAO increased by 10.1%.Besides,under the optimal conditions,the contribution of the R zone in the R-MAO that removal COD,TN,NH_(4)^(+)-N and NO_(3)^(−)-N were 0.36,0.15,0.032 and 0.82 g/***-throughput sequencing results showed that uncultured_bacterium_f_Burkholderiaceae(5.20%),OLB8(1.04%)and Ottowia(1.03%)played an important role in denitrification in the R *** study provided effective guidance for the design and operation of the R-MAO process in domestic sewage treatment.

关键词： Advanced nitrogen removal Multistage anoxic/aerobic process Sludge regeneration zone(R zone) Microbial community

The triggering of catalysis via structural engineering at atomic level: Direct propane dehydrogenation on Fe-N_(3)P-C

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2023年第3期34卷 442-446页

作者： wenyi Bian Xueli Shen Huang Tan Xing Fan Yunxia Liu Haiping lin Youyong Li Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhou 215123China School of Physics and Information Technology Shaanxi Normal UniversityXi’an 710062China Macao Institute of Materials Science and Engineering Macao University of Science and TechnologyMacaoChina

The on-purpose direct propane dehydrogenation(PDH) has received extensive attention to meet the everincreasing demand of *** this work,by means of density functional theory(DFT) calculations,we systematically studied the intrinsic coordinating effect of Fe single-atom catalysts in ***,the N and P dual-coordinated single Fe(Fe-N_(3)P-C) significantly outperform the Fe-N_(4-)C site in catalysis and exhibit desired activity and selectivity at industrial PDH *** mechanistic origin of different performance on Fe-N_(3)P-C and Fe-N_(4-)C has been ascribed to the geometric *** be specific,the in-plane configuration of Fe-N_(4) site exhibits low H affinity,which results in poor activity in C-H bond *** contrast,the out-of-plane structure of Fe-N_(3)P-C site exhibits moderate H affinity,which not only promote the C-H bond scission but also offer a platform for obtaining appropriate H diffusion rate which ensures the high selectivity of propylene and the regeneration of *** work demonstrates promising applications of dual-coordinated single-atom catalysts for highly selective propane dehydrogenation.

关键词： Non-oxidative propane dehydrogenation Propylene selectivity Single-atom catalysis Heteroatom-doped graphene Fe catalyst

Highly crystalline core dominated the catalytic performance of carbon dot for cyclohexane to adipic acid reaction

在线全文

学校读者我要写书评

暂无评论

Nano Research 2022年第8期15卷 7662-7669页

作者： Xiao Wang wenyi Bian Tianyang Zhang Yajie Zhao Mingwang Shao Haiping lin Yang Liu Hui Huang Zhenhui Kang Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhou 215123China Macao Institute of Materials Science and Engineering(MIMSE) MUST-SUDA Joint Research Center for Advanced Functional MaterialsMacao University of Science and TechnologyTaipa 999078MacaoChina School of Physics and Information Technology Shaanxi Normal UniversityXi’an 710062China

Carbon dots(CDs)have uniquely structural,physicochemical and photochemical properties,suggesting a promising platform for catalysis *** in-depth understanding of the structure-activity relationship in the CDs-based catalyst system needs to know the effect of the crystalline core on their catalytic *** efficient catalytic oxidation of cyclohexane is an urgent challenge in current chemical industry,in which,adipic acid(AA)plays an important role in industry for synthesis of nylon6 and ***,we fabricated the pristine CDs by electrochemical etching graphite rod method and derived CDs with high crystalline core(CD-600,CD-800,and CD-1100)through a thermal treatment method in tube ***,these CDs performed an outstanding catalytic performance for one-step synthesis of AA from *** the help of machine learning(ML),the deep correlations between features(structures of CDs,catalytic conditions)and catalytic performances were investigated by XGBoost(XGB)*** under the optimization and prediction of XGB,it was found that high crystalline core preceded the other features and CD-1100 could get the best conversion of 30.696%and selectivity to AA of 92.52%at reaction conditions of 130℃,1.5 MPa,and 10 *** work pioneered the application of ML in industrial issues and demonstrated a comprehensive understanding on CDs as catalyst to realize one-step synthesis of AA.

关键词： adipic acid carbon dots machine learning catalytic performances crystalline core