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Endoscopic resection of a huge Brunner's gland adenoma
ZHANG Binbin, REN Xu, TANG Xiufen, CHI Yuxin, SHI Xuesong
《医学前沿（英文）》 2008年 第2卷 第4期 页码 414-418 doi: 10.1007/s11684-008-0080-4
关键词： superior Histological examination endoscopy gastro-intestinal gastrointestinal haemorrhage
null
《医学前沿（英文）》 2015年 第9卷 第1期 页码 123-128 doi: 10.1007/s11684-014-0366-7
Guidelines for the intraoperative transesophageal echocardiography (TEE) examination have defined a detailed standard for medical professionals, particularly anesthesiologists, on how a TEE exam should proceed. Over the years, TEE has gained substantial popularity and emerged as a preferred monitoring modality to aid in perioperative management and decision making during hemodynamic instability situations or critical care settings. TEE training pathways and practice guidelines have been well established in western countries and many regions of the world. However, TEE training and practice information for anesthesiologists are lacking in China. As innovative technologies develop, other educational models have emerged to aid in obtaining competency in basic TEE exam. Hence, establishing a consensus on the ideal TEE training approach for anesthesiologists in China is urgently needed. Developing an effective curriculum that can be incorporated into an anesthesiology resident’s overall training is also necessary to provide knowledge and skills toward competency in basic TEE exam. With evolving medical system reforms and increasing demands for intraoperative hemodynamic monitoring to accommodate surgical innovations, anesthesiology professionals are increasingly obliged to perform intraoperative TEE exams in their current and future practices. To overcome obstacles and achieve significant progress in using the TEE modality to help in intraoperative management and surgical decision making, publishing basic TEE training guidelines for China’s anesthesiologists is an important endeavor.
关键词： transesophageal echocardiography guidelines training competency
放射检查流程执行中基于禁忌搜索的资源分配 None
Chun-hua HE
《信息与电子工程前沿（英文）》 2018年 第19卷 第3期 页码 446-458 doi: 10.1631/FITEE.1601802
A review of nondestructive examination technology for polyethylene pipe in nuclear power plant
Jinyang ZHENG, Yue ZHANG, Dongsheng HOU, Yinkang QIN, Weican GUO, Chuck ZHANG, Jianfeng SHI
《机械工程前沿（英文）》 2018年 第13卷 第4期 页码 535-545 doi: 10.1007/s11465-018-0515-9
Polyethylene (PE) pipe, particularly high-density polyethylene (HDPE) pipe, has been successfully utilized to transport cooling water for both non-safety- and safety-related applications in nuclear power plant (NPP). Though ASME Code Case N755, which is the first code case related to NPP HDPE pipe, requires a thorough nondestructive examination (NDE) of HDPE joints. However, no executable regulations presently exist because of the lack of a feasible NDE technique for HDPE pipe in NPP. This work presents a review of current developments in NDE technology for both HDPE pipe in NPP with a diameter of less than 400 mm and that of a larger size. For the former category, phased array ultrasonic technique is proven effective for inspecting typical defects in HDPE pipe, and is thus used in Chinese national standards GB/T 29460 and GB/T 29461. A defect-recognition technique is developed based on pattern recognition, and a safety assessment principle is summa-rized from the database of destructive testing. On the other hand, recent research and practical studies reveal that in current ultrasonic-inspection technology, the absence of effective ultrasonic inspection for large size was lack of consideration of the viscoelasticity effect of PE on acoustic wave propagation in current ultrasonic inspection techno-logy. Furthermore, main technical problems were analyzed in the paper to achieve an effective ultrasonic test method in accordance to the safety and efficiency requirements of related regulations and standards. Finally, the development trend and challenges of NDE test technology for HDPE in NPP are discussed.
关键词： polyethylene pipe nuclear power plant ultrasonic inspection nondestructive testing safety assessment
赵修莉, 冯仲科, 周扬扬, 林奕成
《工程（英文）》 2020年 第6卷 第5期 页码 491-494 doi: 10.1016/j.eng.2019.07.022
The defect-length effect in corrosion detection with magnetic method for bridge cables
Qiwei ZHANG, Rongya XIN
《结构与土木工程前沿（英文）》 2018年 第12卷 第4期 页码 662-671 doi: 10.1007/s11709-018-0512-4
Quantitative evaluation of the steel corrosion in cables is significant for the safe operation of cable-supported bridges. The magnetic flux (MF) examination shows great potential to detect the corrosion defect, or loss of metallic cross-sectional area (LMA). An LMA defect in steel cables can be measured accurately when it is longer than a certain length. However, for defects in early stage, where the length of corrosion area is short, the MF examination may produce unacceptable error. In this study, the effect of defect length on the MF examination for corrosion detection of bridge cables is investigated through theoretical analysis and model experiments. An original analytical model to quantify the influence of defect length is proposed based on the equivalent magnetic circuit method. Then, MF examination experiments are performed on a series of cable models with different defect lengths and locations to verify the analytical model. Further, parameter study is conducted based on the proposed analytical model to clarify the mechanism of the defect-length effect. The results show that the area loss caused by short corrosion damage will be underestimated if the defect-length effect is neglected, and this effect can be quantified efficiently with the proposed analytical model.
关键词： bridge cable corrosion detection defect length MF examination quantitative evaluation
车焱,周公望,王彩琴,张焕玲,张建娥,闫立新,陆珍,陆梅,沈洁,朱昊平
《中国工程科学》 2014年 第16卷 第5期 页码 56-59
分析并报告上海市静安区免费孕前优生健康检查后待孕夫妇不良妊娠结局潜在影响因素接触情况以及妊娠率和妊娠结局，为免费孕前健康检查政府实施项目效果的评估提供基础数据。对2011 年8 月—2012 年11 月在静安区参加免费孕前优生健康检查的所有对象在其检查结束后的3 个月、6 个月、12 个月进行随访，重点关注不良妊娠结局潜在危险因素接触情况以及妊娠时间和妊娠结局。统计方法为χ2检验、寿命表、Logistic 回归分析。在目标时段内共有1 480 对夫妇参加了免费孕前优生健康检查，其中1 249 对服务对象接受了随访，随访率为84.4 %。截至2013 年4 月，48.7 %的随访对象已经受孕，孕前检查后3 个月调查累积妊娠率为23.9 %，6 个月调查累积妊娠率为45.0 %。365 人完成妊娠结局的随访，结果显示，早产率为3.0 %，低出生体重率为4.3 %，巨大儿发生率为3.3 %。自然流产率为6.3 %。另外，发现出生缺陷1 人，占妊娠妇女数的0.16 %，占有妊娠结局妇女数的0.27 %。烟酒等不良生活习惯丈夫的比例（18 %～20 %）高于妻子（1 %～3 %），77 %的丈夫和妻子接受潜在电磁辐射的时间超过8 h。9 %的夫妇自述生活和工作中接触重金属以及农药、化肥等潜在致畸物。超过10 %的妻子在怀孕以后接触了潜在致畸物。初步分析未发现上述因素与不良妊娠结局的关系。静安区孕前健康检查后半年内妇女妊娠率不到50 %，有必要在上海乃至全国开展免费孕前健康检查的成本效益评估。
傅贵,张江石,许素睿
《中国工程科学》 2004年 第6卷 第8期 页码 12-16
安全科学技术学科作为《学科分类与代码》的一个一级学科，有明确的研究对象——事故，其研究目的是事故预防和控制事故损失。该学科以事故的发生发展规律为基础科学，它与不同的研究手段和工具交叉形成了该学科的应用科学体系。根据研究范围的不同，安全学科在不同的领域又形成了一个分支学科体系，但研究方法和工具仍然是相同的。就作者的鉴别能力和学科发展现状来说，安全科学技术学科的结构由至少6个基础概念、3条公理组成，学科的科学结构基本完整。
余志衡
《中国工程科学》 2014年 第16卷 第5期 页码 63-66
采用酶联免疫吸附试验(ELISA) 对2013 年1 月—2013 年12 月进行孕前筛查和孕早期普查的2 046 例妇女进行TORCH 特异性IgM 和IgG 抗体检测，主要检测RV-IgG、TOXO-IgG、TOXO-IgM、CMVIgG、CMV-IgM 五项。在调查的2 046 例妇女中，TORCH-IgM 总阳性率为0. 88 %，其中以巨细胞病毒(CMV)感染率居高，为0.68%，弓形虫（TOXO）为0. 20%。TORCH－IgG 阳性率以CMV最高，达97.65 %，其次为RV-IgG、TOXO-IgG，分别为85.58 %和4.89 %。广州市孕前和孕早期妇女TORCH感染率较高，应该积极进行监测和宣传，早发现，早干预，提高出生人口素质，减少出生缺陷与残疾发生。
梁应辰
《中国工程科学》 2000年 第2卷 第5期 页码 34-43
三峡工程是当代全球最大的水利工程，其中的每一项重大工程技术设计与施工建造，均可列为世界水利工程的难题和典型案例，是人类水利工程建设中的一笔宝贵财富。
文章根据1994年开始的三峡通航建筑物技术设计的全面审查，就通航建筑物总体布置，船闸输水系统和船闸水力学，永久船闸高边坡设计，永久船闸水工结构，升船机，技术设计阶段的科研工作成果等6个部分做了阐述和讨论。
卓越,孙国庆
《中国工程科学》 2009年 第11卷 第12期 页码 82-86
隧道岩溶、断裂带等高压涌水是隧道修建中比较难以解决的问题，隧道突涌水地质灾害频繁发生，成为影响隧道施工和安全的主要障碍。宜万铁路齐岳山隧道所穿越暗河、溶洞、断层破碎带等不良地质高压突涌水地段，给施工带来很大的困难。目前正在施工的齐岳山隧道F11断层破碎带，水压高、水量大、地质条件复杂，成为唯一制约全线的主要技术难题。以平导F11断层的注浆施工治水防坍为实例，介绍F11高水压断裂带治水防坍新方案、新工艺及效果检查新方法等，为以后类似工程积累经验。
赵玉凤,谢炜,裴丹,王其军,张立华,段玉秋,李 琴,刘艳丽,王 英
《中国工程科学》 2015年 第17卷 第6期 页码 36-40
目的：分析连云港市病残儿童资料，通过孕前优生健康检查干预其近五年病残儿父母再生育，预防病残儿的发生风险。方法：对连云港市2008―2012年经过医学鉴定的病残儿的资料进行分析，比较其五年间数量、地区、性别分布、疾病顺位变化等，发放调查问卷了解其在生育病残儿之前的基本情况；再次怀孕后有无优生指导、超生排畸、唐筛、妊娠结局、分娩方式等调查，分析干预效果。结果：近五年通过医学鉴定符合病残儿童标准的1 046例五年间无明显变化；城区较农村多；男性较女性多；疾病顺位排序先天性心脏病位于第一位。通过干预，收回问卷中先天性心脏病父母再生育72例均为正常儿，其次脑瘫患儿父母再生育35例均为正常儿。结论：病残儿鉴定父母通过孕前优生健康检查，完成整个孕前保健、风险评估到个性化咨询指导一系列干预后再生育均为正常儿，干预效果明显，减少了不良妊娠结局的发生，对预防和降低再次生育病残儿的发生非常重要。
标题 作者 时间 类型 操作
Endoscopic resection of a huge Brunner's gland adenoma
ZHANG Binbin, REN Xu, TANG Xiufen, CHI Yuxin, SHI Xuesong
期刊论文
training steps to achieving competency in the basic intraoperative transesophageal echocardiography examination
null
期刊论文
A review of nondestructive examination technology for polyethylene pipe in nuclear power plant
Jinyang ZHENG, Yue ZHANG, Dongsheng HOU, Yinkang QIN, Weican GUO, Chuck ZHANG, Jianfeng SHI
期刊论文
The defect-length effect in corrosion detection with magnetic method for bridge cables
Qiwei ZHANG, Rongya XIN
期刊论文
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