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失效分析的多学科特性

失效分析的多学科特性

2007年全国失效分析学术会议

作者： brad a.mcgoran 张飞飞 Bemard Ross 毅博科技咨询(杭州)有限公司

判断机械失效的根本原因通常是一个复杂的任务,所需要的专业技术涵盖多个工程领域,如材料科学、力学、热工学和流体力学等;有些失效案例中也必须牵涉到其它的学科,例如生物学、人因工程学以及统计学等。失效分析常常是由一个由多学科专... 详细信息

判断机械失效的根本原因通常是一个复杂的任务,所需要的专业技术涵盖多个工程领域,如材料科学、力学、热工学和流体力学等;有些失效案例中也必须牵涉到其它的学科,例如生物学、人因工程学以及统计学等。失效分析常常是由一个由多学科专业人员组成的团队所完成的,而判断失效原因的最重要因素之一就是确定其中的关键学科。失效分析团队成员组成也往往随着新的调查发现而改变,因此失效分析团队的负责人必须确保在分析当中运用到恰当的的专业技术,即所有的失效证据和理论必须由合格的专业技术人员所评估,而分析也必须由分散的多学科领域再回到最初的“大图像”。简而言之,失效事故并不直接标注哪些工程人员需要参与分析,或者这些明显的“标注”可能会误导分析人员。本文将基于几个失效分析案例来阐述这一观点。

关键词：失效分析多学科特性

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失效分析的多学科特性

金属热处理 2007年第S1期32卷 11-11页

作者： brad a.mcgoran 张飞飞 Bernard Ross 毅博科技咨询(杭州)有限公司

判断机械失效的根本原因通常是一个复杂的任务,所需要的专业技术涵盖多个工程领域,如材料科学、力学、热工学和流体力学等;有些失效案例中也必须牵涉到其它的学科,例如生物学、人因工程学以及统计学等。失效分析常常是由一个由多学科专业人员组成的团队所完成的,而判断失效原因的最重要因素之一就是确定其中的关键学科。失效分析团队成员组成也往往随着新的调查发现而改变,因此失效分析团队的负责人必须确保在分析当中运用到恰当的的专业技术,即所有的失效证据和理论必须由合格的专业技术人员所评估,而分析也必须由分散的多学科领域再回到最初的"大图像"。简而言之,失效事故并不直接标注哪些工程人员需要参与分析,或者这些明显的"标注"可能会误导分析人员。本文将基于几个失效分析案例来阐述这一观点。

关键词：失效分析多学科特性

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失效分析的多学科特性

金属热处理 2007年第Z1期32卷 11-页

作者： brad a.mcgoran 张飞飞 Bernard Ross 毅博科技咨询(杭州)有限公司浙江杭州310053

判断机械失效的根本原因通常是一个复杂的任务,所需要的专业技术涵盖多个工程领域,如材料科学、力学、热工学和流体力学等;有些失效案例中也必须牵涉到其它的学科,例如生物学、人因工程学以及统计学等。失效分析常常是由一个由多学科专业人员组成的团队所完成的,而判断失效原因的最重要因素之一就是确定其中的关键学科。失效分析团队成员组成也往往随着新的调查发现而改变,因此失效分析团队的负责人必须确保在分析当中运用到恰当的的专业技术,即所有的失效证据和理论必须由合格的专业技术人员所评估,而分析也必须由分散的多学科领域再回到最初的"大图像"。简而言之,失效事故并不直接标注哪些工程人员需要参与分析,或者这些明显的"标注"可能会误导分析人员。本文将基于几个失效分析案例来阐述这一观点。

关键词：失效分析多学科特性

小型船舶上的液化石油气用具—火灾事故调查(英文)

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小型船舶上的液化石油气用具—火灾事故调查(英文)

Update on the management of the gastrointestinal effects of radiation

2007年全国失效分析学术会议

作者： Richard J．Martin brad a.mcgoran William D．Chapman 毅博科技咨询公司洛杉矶办事处 Smith Chapman & Campbell律师事务所

在美国西北太平洋地区的一次野外垂钓活动中,一名游客在向导的渔船中由于爆燃而严重受伤。事故的凋查表明,燃油供应商销售并在渔船中安装了非标准的液化石油气加热系统,该系使用的元件未达到液化石油气的使用标准。如果使用了正确的加... 详细信息

在美国西北太平洋地区的一次野外垂钓活动中,一名游客在向导的渔船中由于爆燃而严重受伤。事故的凋查表明,燃油供应商销售并在渔船中安装了非标准的液化石油气加热系统,该系使用的元件未达到液化石油气的使用标准。如果使用了正确的加热系统,同时向导能够根据安全预防常识及时观察到易燃燃料的状况,那么这起事故是完全可以避免的。本文阐述了对此事故的调查,并希望提醒船只使用者和海洋专业人员能明白使用非标准燃油输运元件的内在危险性。

关键词：液化石油气火灾事故调查

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World Journal of Gastrointestinal Oncology 2021年第5期13卷 400-408页

作者： Hannah McCaughan Stephen Boyle John J mcgoran Department of Gastroenterology Altnagelvin Area HospitalLondonderry BT476SBUnited Kingdom

Radiation therapy is a long-established and essential modality in the treatment of many *** is well known that tissue within a field of radiation can suffer indiscriminate effects,leading to acute and chronic *** gastrointestinal tract may be adversely affected by *** the mouth to the rectum,patients can experience troublesome symptoms that require the concerted input of specialist *** range from nursing care,dietetic optimization,pharmacological management,and mechanical procedures through endoscopy and *** evidence exists mainly for radiation induced effects in four distinct areas of the gastrointestinal tract:oral mucosa,esophagus,small bowel,and *** review explores the experiences of oncology and gastrointestinal teams in managing the most common conditions and some of the different practices for radiation associated morbidity.

关键词： Radiation Stricture Endoscopy

Comparison of the Birds Point-New Madrid Floodway, Mississippi River and the Yolo Bypass, Sacramento River

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Journal of Earth Science 2016年第1期27卷 47-54页

作者： brad Walker Missouri Coalition for the Environment St. Louis MO 63118 USA

The Birds Point-New Madrid Floodway（BP-NMF） and the Yolo Bypass, located on the Mississippi and Sacramento rivers, respectively, are agriculture areas that were once each part of vast wetlands but are now intermittently used for flood control. Here the similarity stops, the BP-NMF has been used to convey floodwaters only twice in nearly 80 years, while the Yolo Bypass is used for this purpose on average every other year. The consequences are greatly different. In 2011, the BP-NMF was activated through the explosive detonation of the ＇fuse plug＂ portion of its levees, resulting in elevated property and economic damages, crop losses, and litigation. High-energy flows following the opening of the BP-NMF scour coarse sediment in the vicinity of the opening of the BP-NMF and deposit this material within the floodway, including on agricultural fields. In general the environment of much of the BP-NMF provides poor wildlife habitat. In contrast, the routine operation of Yolo Bypass is expected, avoids damage and litigation, supplies organic-rich sediment to fields, and provides good wildlife habitat. The difference between the two systems is attributed to a better approximation of natural conditions on the Yolo Bypass.

关键词： New Madrid Floodway Yolo Bypass flood control

SHOULD YOU PUT YOUR ENERGY INTO GREEN ROOFS TO REDUCE ENERGY CONSUMPTION IN YOUR BUILDING

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Journal of Green Building 2008年第2期3卷 26-40页

作者： brad Bass North American Green Roof Research Committee Network Adaptation&Impacts Research Division Environment Canada at the University of Toronto

INTRODUCTION Green roofs are touted as an environmental technology for urban areas due to their many benefi ts(Lundholm et al.2008).Although the design and the benefi ts have been reported in many reports and articles,they are reviewed here for those who are unfamiliar with this *** roofs,or more formally,green roof infrastructure,is a technology that allows for the growth of vegetation on a roof while protecting the building envelope from leakage and root penetration.A green roof is more than a layer of soil piled on the roof,planted in the way that you might plant a *** technology consists of multiple layers that include the plants and growing medium or substrate,but also a drainage layer for storing water that was not used by the plants and a waterproof,root-repellent membrane(Figure 1).

关键词： Figure planted formally

From filaments to function: The role of the plant actin cytoskeleton in pathogen perception,signaling and immunity

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Journal of Integrative Plant Biology 2016年第4期58卷 299-311页

作者： Katie Porter brad Day Graduate Program in Cell and Molecular Biology Michigan State University Department of Plant Soil and Microbial Sciences Michigan State University Graduate Program in Genetics Michigan State University

The eukaryotic actin cytoskeleton is required for numerous cellular processes, including cell shape, development and movement, gene expression and signal transduction, and response to biotic and abiotic stress. In recent years,research in both plants and animal systems have described a function for actin as the ideal surveillance platform, linking the function and activity of primary physiological processes to the immune system. In this review, we will highlight recent advances that have defined the regulation and breadth of function of the actin cytoskeleton as a network required for defense signaling following pathogen infection. Coupled with an overview of recent work demonstrating specific targeting of the plant actin cytoskeleton by a diversity of pathogens,including bacteria, fungi and viruses, we will highlight the importance of actin as a key signaling hub in plants, one that mediates surveillance of cellular homeostasis and the activation of specific signaling responses following pathogen perception. B4 ased on the studies highlighted herein, we propose a working model that posits changes in actin filament organization is in and of itself a highly specific signal, which induces, regulates and physically directs stimulus-specific signaling processes, most importantly, those associated with response to pathogens.

关键词： Actin cytoskeleton immunity pathogen plant Pseudomonas syringae surveillance

The BK channel:a vital link between cellular calcium and electrical signaling

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Protein & Cell 2012年第12期3卷 883-892页

作者： brad S.Rothberg Department of Biochemistry Temple University School of MedicinePhiladelphiaPA 19140USA

Large-conductance Ca^(2+)-activated K+channels(BK channels)constitute an key physiological link between cellular Ca^(2+) signaling and electrical signaling at the plasma *** these channels are critical to the control of action potential firing and neurotrans-mitter release in several types of neurons,as well as the dynamic control of smooth muscle tone in resis-tance arteries,airway,and *** advances in our understanding of K^(+) channel structure and function have led to new insight toward the molecular mecha-nisms of opening and closing(gating)of these *** we will focus on mechanisms of BK channel gating by Ca^(2+),transmembrane voltage,and auxiliary subunit proteins.

关键词： RCK domain voltage sensor blood pressure leucine-rich repeat-containing(LRRC)protein