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膜结构常见疵病、损伤及防治 被引量:9
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作者 严慧 艾威 《空间结构》 CSCD 北大核心 2007年第2期26-31,共6页
膜结构是空间结构中充满活力的一种结构体系.近十年来膜结构在我国获得了广泛应用,并呈快速发展势态.然而膜结构工程虽然在形态优美、结构轻盈等方面颇受好评,但工程的局部缺陷、破损乃至整体破坏的事故却时有所闻.本文针对膜结构中存... 膜结构是空间结构中充满活力的一种结构体系.近十年来膜结构在我国获得了广泛应用,并呈快速发展势态.然而膜结构工程虽然在形态优美、结构轻盈等方面颇受好评,但工程的局部缺陷、破损乃至整体破坏的事故却时有所闻.本文针对膜结构中存在的常见疵病、损伤与破坏事故进行具体分析,并对其设计、制作及安装中的问题提出相应的防治措施,结论可供膜结构工程参考借鉴. 展开更多
关键词 膜结构 疵病 损伤 防治
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加热辊压复合土工膜的结构缺陷 被引量:1
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作者 刘让同 张再兴 《岩土工程学报》 EI CAS CSCD 北大核心 2005年第5期549-553,共5页
复合加工过程给复合土工膜中的膜材带来新的结构缺陷,如膜材表面结构粗糙化、膜材自由体积增加、纤维与膜材之间的界面粘结缺陷、膜材的有效抗渗厚度减小、膜—基复合过渡区中膜表面的异相成核结晶等。这些缺陷的产生受许多因素的影响... 复合加工过程给复合土工膜中的膜材带来新的结构缺陷,如膜材表面结构粗糙化、膜材自由体积增加、纤维与膜材之间的界面粘结缺陷、膜材的有效抗渗厚度减小、膜—基复合过渡区中膜表面的异相成核结晶等。这些缺陷的产生受许多因素的影响。膜材中LLDPE的混用比例增加,基材中纤维越细,表面平整,不易给膜材带来新的结构缺陷;提高复合加热功率、降低生产速度、增加复合压力,将使复合土工膜的抗渗能力变差。 展开更多
关键词 复合土工膜 结构缺陷 膜材 基材 工艺条件
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超声无损检测技术在混凝土中的应用实例分析 被引量:3
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作者 孙庆合 高平 《宁夏工程技术》 CAS 2009年第4期392-396,共5页
介绍了超声无损检测的基本原理,具体阐述了混凝土构件缺陷与超声参数之间的关系,并以此建立了两种判据,结合工程实例对两种判据进行对比和分析,得出PSD判据法可用于混凝土构件缺陷定性和定量的分析,并建议使用该法时结合超声成像法作为... 介绍了超声无损检测的基本原理,具体阐述了混凝土构件缺陷与超声参数之间的关系,并以此建立了两种判据,结合工程实例对两种判据进行对比和分析,得出PSD判据法可用于混凝土构件缺陷定性和定量的分析,并建议使用该法时结合超声成像法作为最终判据. 展开更多
关键词 无损检测 超声参数 混凝土缺陷 PSD判据法
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论《去十九号房间》中的心理毁容 被引量:2
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作者 潘家云 《浙江外国语学院学报》 2017年第6期76-83,共8页
《去十九号房间》是英国女作家多丽丝·莱辛创作的一部短篇小说。作品中,苏珊的自我定位是专情专意、理性聪明的中产阶级家庭主妇,但马修的出轨彻底颠覆了她的自我形象和角色定位,摧毁了她的安全感和价值感,对她造成了实实在在的心... 《去十九号房间》是英国女作家多丽丝·莱辛创作的一部短篇小说。作品中,苏珊的自我定位是专情专意、理性聪明的中产阶级家庭主妇,但马修的出轨彻底颠覆了她的自我形象和角色定位,摧毁了她的安全感和价值感,对她造成了实实在在的心理毁容。马修既伤害又爱护的策略让人近中年、经济弱势、性情懦弱的苏珊难以招架,她疯狂地维持着理性,病态地执着于平和,不敢直面现实、化解冲突,无力弥补,也无力反抗,不断逃避,直至愿望被现实击破而崩溃自杀。作家对自他边界和理性感性的度进行了探索,既讽刺和批判了以苏珊为代表的中产阶级的算计、功利、虚伪、拘泥和懦弱,又对这个画地为牢、凿心为狱、挣扎至死的弱女子寄予了无限的同情。 展开更多
关键词 《去十九号房间》 心理毁容 理性 防御机制 抑郁症
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碳纤维复合材料构件加工缺陷与高效加工对策 被引量:29
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作者 鲍永杰 高航 《材料工程》 EI CAS CSCD 北大核心 2009年第S2期254-259,共6页
碳纤维复合材料钻削加工时易产生分层、毛刺、撕裂等缺陷,是典型的难加工材料。本文以碳纤维增强/树脂基复合材料为研究对象,观察钻孔缺陷形成过程,建立单丝切削模型分析缺陷形成原因;讨论了轴向力对缺陷的影响规律。结论如下:纤维方向... 碳纤维复合材料钻削加工时易产生分层、毛刺、撕裂等缺陷,是典型的难加工材料。本文以碳纤维增强/树脂基复合材料为研究对象,观察钻孔缺陷形成过程,建立单丝切削模型分析缺陷形成原因;讨论了轴向力对缺陷的影响规律。结论如下:纤维方向对缺陷形成有重要的影响,轴向力增大分层与撕裂缺陷相应增大;以磨代钻加工工艺、新型PCD刀具和螺旋面钻头对于提高碳纤维复合材料钻孔质量都有很大提高。 展开更多
关键词 碳纤维复合材料 钻孔 轴向力 缺陷
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电镀金刚石钻头钻削碳纤维复合材料研究 被引量:26
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作者 鲍永杰 高航 李凤全 《金刚石与磨料磨具工程》 CAS 北大核心 2009年第3期38-42,共5页
碳纤维复合材料钻孔加工时极易产生分层、毛刺、撕裂等缺陷,是典型的难加工材料。针对碳纤维复合材料特点,以电镀金刚石钻头为研究对象,从钻削轴向力、钻孔出口质量等方面分析电镀金刚石钻头钻孔特点,并与硬质合金麻花钻进行对比,得出结... 碳纤维复合材料钻孔加工时极易产生分层、毛刺、撕裂等缺陷,是典型的难加工材料。针对碳纤维复合材料特点,以电镀金刚石钻头为研究对象,从钻削轴向力、钻孔出口质量等方面分析电镀金刚石钻头钻孔特点,并与硬质合金麻花钻进行对比,得出结论:电镀金刚石钻头钻削碳纤维复合材料时钻削轴向力较小,钻削质量较好,更适合于碳纤维复合材料的加工;钻头转速提高有利于减小钻孔缺陷的产生,钻削轴向力随钻头转速的升高而降低,随钻头直径的增大而增大;最后,通过多元线形回归方法得出电镀金刚石钻头钻削力经验公式。 展开更多
关键词 碳纤维复合材料 电镀金刚石钻头 钻削轴向力 缺陷
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PVC结构的不稳定缺陷及其稳定化改性 被引量:9
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作者 郝子明 余灯华 +1 位作者 易志伟 陈金鹏 《塑料助剂》 2004年第3期36-39,41,共5页
介绍了PVC结构的不稳定缺陷及其稳定化改性机理 ,提出了键合理论 ,深化了稀土类热稳定剂稳定机理。综述了各种PVC热稳定剂的特点及其研究现状 ,指出无毒、高效、多功能化是PVC热稳定剂发展的主要方向 ,并简要探讨了实现该方向的研发创... 介绍了PVC结构的不稳定缺陷及其稳定化改性机理 ,提出了键合理论 ,深化了稀土类热稳定剂稳定机理。综述了各种PVC热稳定剂的特点及其研究现状 ,指出无毒、高效、多功能化是PVC热稳定剂发展的主要方向 ,并简要探讨了实现该方向的研发创新方略。 展开更多
关键词 PVC 聚氯乙烯 稀土类热稳定剂 通用树脂 加工成型工艺 金属离子
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C/E复合材料“以磨代钻”制孔工艺 被引量:9
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作者 鲍永杰 高航 +1 位作者 董波 李兰柱 《宇航材料工艺》 CAS CSCD 北大核心 2010年第4期47-49,共3页
为了提高C/E复合材料构件制孔加工质量,以C/E复合材料为研究对象,提出"以磨代钻"制孔新工艺,并研制了电镀金刚石刀具。与传统硬质合金刀具钻孔工艺进行对比试验,结果表明:金刚石刀具钻削轴向力降低30%-50%、刀具耐用度提高3-... 为了提高C/E复合材料构件制孔加工质量,以C/E复合材料为研究对象,提出"以磨代钻"制孔新工艺,并研制了电镀金刚石刀具。与传统硬质合金刀具钻孔工艺进行对比试验,结果表明:金刚石刀具钻削轴向力降低30%-50%、刀具耐用度提高3-5倍、缺陷显著减少,更适合C/E复合材料钻孔加工。 展开更多
关键词 C/E复合材料 “以磨代钻”刀具 钻孔 缺陷 轴向力
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Analysis of Process Control Model of Plate MAS Rolling 被引量:4
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作者 ZHU Fu-wen HU Xian-lei ZHAO Zhong LIU Xiang-hua 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2010年第4期31-33,共3页
Using the identification quantity to identify the long ear disfigurement was brought up, and by calculation, it can be found that identification quantity should be set as the quantity of long ear disfigurement of the ... Using the identification quantity to identify the long ear disfigurement was brought up, and by calculation, it can be found that identification quantity should be set as the quantity of long ear disfigurement of the position which is about 0. 2 times of plate width to the plate border. Conception of plate head tiny cell was brought up, and the long ear disfigurement was uncoupled into the product of elongation percentage and length of tiny cell. On the basis of prediction of long ear disfigurement, process control model of MAS rolling was built up, and application indicates that it can fit the on-line production and eliminate the long ear disfigurement commendably. 展开更多
关键词 PLATE plane shape plan view pattern MAS rolling long ear disfigurement head disfigurement
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A Study of the Treatment of Disfiguring Diseases in the “Qian Jin Fang”
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作者 Yuhan Li Yang Zhao 《Journal of Clinical and Nursing Research》 2024年第3期200-206,共7页
Traditional Chinese medicine(TCM)has been passed down for more than 2,000 years.TCM beauty products driven by the principles of identification and treatment with various dosage forms and exhibit mild and safe efficacy... Traditional Chinese medicine(TCM)has been passed down for more than 2,000 years.TCM beauty products driven by the principles of identification and treatment with various dosage forms and exhibit mild and safe efficacy are bound to become a main component of the beauty industry in the future.Xu once commented that“Qian Jin Fang”is different from the traditional prescription system,which emphasizes the use of medicines.In this paper,we mainly selected the prescriptions for the treatment of disfigurement diseases such as acne,scarring,black dryness,face hyperpigmentation,black mole,and rosacea from the article titled,“Upper Seven Orifices Disease-Facial Medicine IX”in the Bei Ji Qian Jin Yao Fang[1].By studying and analyzing the original composition of the formula,understanding the etiology and pathogenesis of the disease,and exploring the characteristics of the formula concerning the efficacy of TCM,their properties,flavors,and meridians,we summarized the characteristics of the Qian Jin Fang.It is based on the external treatment of disfigurement diseases,with a wide variety of drugs,flexibility,and accuracy.This method draws upon analogies while utilizing excipients and harmonizers to focus on the combined healing approach of treatment and nourishment. 展开更多
关键词 Qian jin fang External treatment disfiguring diseases ACNE
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旋压加工缺陷的成因及预防措施研究 被引量:4
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作者 傅晓炜 《新技术新工艺》 2005年第8期42-43,共2页
本文分析了数控旋压成形加工中薄板的变形特点及所产生的旋压缺陷,并提出了相应 的预防措施。
关键词 旋压 缺陷 成因 预防
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浅谈红外测温在发现运行电力设备缺陷方面的应用 被引量:5
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作者 王晓辉 《河南电力》 2007年第1期18-20,共3页
红外检测技术水平日臻成熟,在电力系统中作为有效、便捷的缺陷检测手段越来越受到各级管理部门的重视,本文通过工作中红外测温发现的一个缺陷实例,阐述了用红外测温发现缺陷时应注意的几个问题。
关键词 红外检测 电力设备 缺陷
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刍议硕士研究生招生条件中的空洞 被引量:2
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作者 钟尚科 《现代大学教育》 2003年第2期72-74,共3页
本文从社会上出现的新型“催生考研”应试教育现象 ,透视硕士研究生招生条件中的空洞。通过分析这种畸形教育现象产生的制度原因 。
关键词 研究生 招生条件 应试 畸形教育 空洞
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尿素合成塔重大缺陷调查分析与措施 被引量:4
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作者 吴岩石 张中大 《压力容器》 北大核心 2005年第6期40-45,共6页
吉化公司尿素合成塔运行18年来,塔内衬里及筒体焊缝先后发现点腐蚀、局部较均匀腐蚀、晶间腐蚀、应力腐蚀开裂、鼓包、冲刷腐蚀和焊接缺陷等严重安全隐患,对此进行调查分析,提出解决办法。
关键词 调查 缺陷 分析 措施
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钛合金蓝色阳极氧化及缺陷检测研究 被引量:3
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作者 孙慧艳 周英杰 杨景伟 《涂装与电镀》 2009年第6期3-5,共3页
本项研究主要目的是检查钛合金材料在冶炼、锻造及机械加工过程中产生的缺陷。其主要作用原理是在钛合金表面形成蓝色阳极氧化膜,然后在酸溶液中部分去除,使得钛合金表面缺陷暴露更明显,从而通过缺陷状态来判断钛合金材料表面存在的缺... 本项研究主要目的是检查钛合金材料在冶炼、锻造及机械加工过程中产生的缺陷。其主要作用原理是在钛合金表面形成蓝色阳极氧化膜,然后在酸溶液中部分去除,使得钛合金表面缺陷暴露更明显,从而通过缺陷状态来判断钛合金材料表面存在的缺陷种类。 展开更多
关键词 钛合金 蓝色阳极化 缺陷
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阳光控制镀膜玻璃表面缺陷的观察与分析 被引量:2
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作者 赵洪力 刘起英 +2 位作者 杨静凯 刘艳丽 张福成 《硅酸盐学报》 EI CAS CSCD 北大核心 2009年第11期1899-1902,共4页
采用常压化学气相沉积法在浮法玻璃上制备了阳光控制镀膜玻璃。用扫描电镜和能谱仪对镀膜玻璃表面的缺陷进行了观察,分析了产生缺陷的原因。结果表明:镀膜玻璃样品表面存在典型的孔洞、翘曲和皱褶等缺陷,缺陷的尺寸不超过100μm,孔洞缺... 采用常压化学气相沉积法在浮法玻璃上制备了阳光控制镀膜玻璃。用扫描电镜和能谱仪对镀膜玻璃表面的缺陷进行了观察,分析了产生缺陷的原因。结果表明:镀膜玻璃样品表面存在典型的孔洞、翘曲和皱褶等缺陷,缺陷的尺寸不超过100μm,孔洞缺陷发生在薄膜与基体之间。缺陷的形成与制备工艺条件,如:反应气体的配比、流量、玻璃板的厚度与玻璃基体的化学成分等因素有关。 展开更多
关键词 浮法玻璃 阳光控制镀膜玻璃 缺陷 扫描电镜
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Mapping out the social experience of cancer patients with facial disfigurement
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作者 Alessandro Bonanno Jin Young Choi 《Health》 2010年第5期418-428,共11页
This article contributes to the limited literature on the social consequences of cancer generated facial disfigurement by reporting the result of an exploratory analysis of interaction between facially disfigured canc... This article contributes to the limited literature on the social consequences of cancer generated facial disfigurement by reporting the result of an exploratory analysis of interaction between facially disfigured cancer patients and strangers and acquaintances (secondary groups). Secondary groups are those in which membership occurs due to performance of formal and/or non-intimate roles. Interaction is studied as it takes place in different social settings. Indivi- duals who are affected by cancer of the head and neck region can now expect to survive for many years after the cancer is detected and later surgically removed. Because of surgery, these survivors live the rest of their lives with facial disfigurement and are stigmatized and socially excluded. It follows that a new and socially relevant situation has emerged: as medicine develops and allows more patients to survive, it forces them to spend significant portions of their lives dealing with the stigma associated with facial disfigurement. Research on social issues pertaining to facially disfigured cancer patients remains sparse. Limited knowledge has been produced on the “social context” within which interaction between the disfigured and relevant social groups takes place. To date most research has focused on the individual and his/her ability to adapt to the condition of facially disfigured. To address this scientific gap and document the manner through which the interaction process is socially created and evolves, interviews with fourteen facially disfigured cancer patients were carried out. These interviews were designed to reconstruct the interaction experiences of these individuals in different social contexts. Data were analyzed through the qualitative approach of grounded theory. Results indicate that patients can be divided into two groups: Occasionally Comfortable Patients and Always Comfortable Patients. Occasionally comfortable patients are individuals who experience different levels of comfort in interaction. In some situations they do no 展开更多
关键词 FACIAL disfigurEMENT CANCER STIGMA SOCIAL Interaction
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The Pectoralis Major Myocutaneous Pedicled Flap Revisited
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作者 Shinichi Asamura Hirohiko Kakizaki +3 位作者 Kazunori Mori Kazuhide Matsunaga Wada Mitsuhiro Noritaka Isogai 《Surgical Science》 2013年第9期380-384,共5页
The pectoralis major myocutaneous pedicle flap (PMMF) is still being used by many surgeons and plays an important role in head and neck reconstruction. The purpose of this series was to review our 10 years’ experienc... The pectoralis major myocutaneous pedicle flap (PMMF) is still being used by many surgeons and plays an important role in head and neck reconstruction. The purpose of this series was to review our 10 years’ experience with the PMMF in head and neck reconstruction. One hundred and two patients who underwent the PMMF technique were reviewed on the clinical records. Postoperative complications were classified into flap loss, hemorrhage, infection, fistula formation, wound dehiscence and donor site complication. Eighty two patients (80.4%) demonstrated no complication. Six patients among 102 patients (5.9%) demonstrated total or partial skin necroses. Three female patients were completely dissatisfied with the cosmetic appearance after the PMMF. One of them required a reconstructive surgery with the latissimusdorsi flap. Without surgical expertise in plastic surgical field, an ear-nose-throat or an oral surgeon can performed the PMMF technique provided the operator is well aware of serious and frequent complications of this “workhorse” procedure. 展开更多
关键词 Pectoralis MAJOR Myocutaneous Pedicled FLAP Head and NECK Reconstruction FLAP LOSS BREAST disfigurEMENT
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The Abuse of Dermal Fillers: A Clinico-Epidemiological Study of 35 Cases
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作者 Nabeel K. Al Hamzawi Salih M. Al Baaj 《Journal of Cosmetics, Dermatological Sciences and Applications》 2019年第2期94-106,共13页
Background: Nowadays, the use of dermal fillers for correcting signs of aging, such as wrinkles, depressions, and folds, has become increasingly popular. However, the abuse of these products can lead to disfigurements... Background: Nowadays, the use of dermal fillers for correcting signs of aging, such as wrinkles, depressions, and folds, has become increasingly popular. However, the abuse of these products can lead to disfigurements and unpredictable consequences among users. Objective: To evaluate the clinical abnormalities related to dermal fillers abuse in Iraqi people, and identify the various factors contributing to them. Methods: A total of 35 patients with different facial abnormalities due to the abuse of dermal fillers, attending our clinic in Diwaniyah, Iraq, from September 2016 to December 2017, were enrolled. A questionnaire-based analysis was used to collect clinical and sociodemographic data from patients to determine the etiological profile behind this problem. Several disfigurements and facial defects were diagnosed on clinical base. We have treated most of the situations that require intervention and treatment. Results: A total of 35 patients aged between 25 and 54 years with a sex ratio of 0.093 were enrolled in this study. Their mean age was 42 years, and the age group between 35 and 45 years was forming 85.7% of the cases. The clinical abnormalities recorded in this study include: buffy face 8 (22.8%), facial asymmetry 3 (8.5%), Mdoka fish lips like 6 (17%), periorbital redness 1 (2.8%), filler fatigue 6 (17%), bags under eyes 4 (11.4%), sizeable bulbous nose 4 (11.4%), topographical changes 2 (5.7%), and stone-like cheeks 1 (2.8%). The leading causes for the abuse of fillers were as follows: 12 (34.28%) candidates were not compatible with the procedure, 9 (25.7%) were non-compliance with the indications of the Food and Drug Organization (FDA), 9 (25.7%) fillers were injected in the wrong place, 18 (51.4%) injections were of a larger quantity than required, and 5 (14.2%) had frequent and long-term injection. Conclusion: The use of dermal fillers for a wrong purpose can result in disfigurements rather than beautification. The commonest disfigurements are the puffy face, enlarged lips, and bags under eyes. The 展开更多
关键词 DERMAL FILLER ABUSE CLINICAL ABNORMALITIES disfigurements
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大学英语学习中的母语“文化失语”缺陷之考察 被引量:2
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作者 贾燕 《教育文化论坛》 2014年第6期58-61,共4页
文章通过问卷调查,具体分析了大学生使用英语表达中国文化的实际能力及其影响因素,并采用访谈、追踪调查等方法,进而探寻造成母语"文化失语"缺陷的原因,得出在今后的教学中需注重用英语准确表述母语文化知识能力的培养,帮助... 文章通过问卷调查,具体分析了大学生使用英语表达中国文化的实际能力及其影响因素,并采用访谈、追踪调查等方法,进而探寻造成母语"文化失语"缺陷的原因,得出在今后的教学中需注重用英语准确表述母语文化知识能力的培养,帮助学生克服母语"文化失语",弘扬中华文化。 展开更多
关键词 母语文化失语 缺陷 考察
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