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磷化后处理工艺的选择

电镀与环保 1991年第2期11卷 15-18页

作者： Ronald Zurilla mark simpson 颜景灌 PPG Chemfil Troy Michigan

由于对抗蚀性能的要求愈来愈高,环保部门的规定又愈来愈严,可供选择的磷化后处理也就变得越来越复杂了。本文阐述了各种可供选用的后处理药剂,总结了含铬和无铬后处理的优缺点,以及它们用于设计新设备或改造现有的设备时的效果,同时还... 详细信息

由于对抗蚀性能的要求愈来愈高,环保部门的规定又愈来愈严,可供选择的磷化后处理也就变得越来越复杂了。本文阐述了各种可供选用的后处理药剂,总结了含铬和无铬后处理的优缺点,以及它们用于设计新设备或改造现有的设备时的效果,同时还讨论了影响后处理选择的其它因素,最后讨论了在金属基体、前处理工艺和涂料都得到改进情况下采用后处理的相对重要性。

关键词：金属磷化工艺后处理表面处理

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Roles for the VCP co-factors Npl4 and Ufd1 in neuronal function in Drosophila melanogaster

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Journal of Genetics and Genomics 2017年第10期44卷 493-501页

作者： Dwayne J.Byrne mark J.Harmon Jeremy C.simpson Craig Blackstone Niamh C. O'Sullivan UCD School of Biomolecular and Biomedical Science UCD Conway Institute University College Dublin Dublin 4 Ireland UCD School of Biology and Environmental Science UCD Conway Institute of Biomolecular and Biomedical Research University College Dublin Dublin 4Ireland Cell Biology Section Neurogenetics Branch National Institute of Neurological Disorders and Stroke National Institutes of Health Bethesda MD 20892 USA

The VCP-Ufd1-Npl4 complex regulates proteasomal processing within cells by delivering ubiquitinated proteins to the proteasome for *** in VCP are associated with two neurodegenerative diseases,amyotrophic lateral sclerosis（ALS） and inclusion body myopathy with Paget＇s disease of the bone and frontotemporal dementia（IBMPFD）,and extensive study has revealed crucial functions of VCP within *** contrast,little is known about the functions of Npl4 or Ufd1 in *** neuronalspecific knockdown of Npl4 or Ufd1 in Drosophila melanogaster,we infer that Npl4 contributes to microtubule organization within developing motor ***,Npl4 RNAi flies present with neurodegenerative phenotypes including progressive locomotor deficits,reduced lifespan and increased accumulation of TAR DNA-binding protein-43 homolog（TBPH）.Knockdown,but not overexpression,of TBPH also exacerbates Npl4 RNAi-associated adult-onset neurodegenerative *** contrast,we find that neuronal knockdown of Ufd1 has little effect on neuromuscular junction（NMJ） organization,TBPH accumulation or adult *** findings suggest the differing neuronal functions of Npl4 and Ufd1 in vivo.

关键词： Proteasome TDP-43 accumulation Neurodegeneration Drosophila

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金属丝网捕集器的优化设计

化学工程 1988年第3期 78-80页

作者： mark Gerrard ,Gabriel Puc ,Edward simpson ,徐蒽衢州化学工业公司

捕集器常常用来脱除气流中的液滴。当二相混合物进入容器(以垂直方向常见),通过由细金属丝或塑料丝制作的水平丝网时,悬浮液滴与丝网相撞,随后凝聚并集留于容器底部。由不同材质制成的丝网捕集器见图1(本刊略)。为了对捕集器进行快速设... 详细信息

捕集器常常用来脱除气流中的液滴。当二相混合物进入容器(以垂直方向常见),通过由细金属丝或塑料丝制作的水平丝网时,悬浮液滴与丝网相撞,随后凝聚并集留于容器底部。由不同材质制成的丝网捕集器见图1(本刊略)。为了对捕集器进行快速设计,容器的直

关键词：金属丝网液滴惯性碰撞颗粒填料层高度污水处理设备捕集器捕集效率填料高度优化设计

Sharing Smart Card Authenticated Sessions Using Proxies

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Computer Technology and Application 2016年第1期7卷 28-45页

作者： Kevin E. Foltz William R. simpson Institute for Defense Analyses 4850 Mark Center Drive Alexandria VA 22311 USA

This paper discusses an approach to share a smart card in one machine with other machines accessible on the local network or the Internet. This allows a user at a browser to use the shared card remotely and access web applications that requiresmart card authentication. This also enables users to access these applications from browsers and machines that do not have the capability to use a smart card. The approach uses proxies and card reader code to provide this capability to the requesting *** work with remote or shared smart card use either requires continuous access to the smart card machine or specific client software. The approach in this paper works for any device and browser that has proxy settings, creates minimal network traffic and computation on the smart card machine, and allows the client to transfer from one network to another while maintaining connectivity to a server. This paper describes the smart card sharing approach, implementation and validation of the approach using real systems, and security implications for an enterprise using smart cards.

关键词： Smart card IT security authentication key management proxy SSL TLS session stealing

An Agent-Based Web-Services Monitoring System

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Computer Technology and Application 2011年第9期2卷 675-685页

作者： Coimbatore S. Chandersekaranl William R. simpson Institute for Defense Analyses 4850 Mark Center Dr. Alexandria Virginia 22311 USA

An enterprise based on web services can benefit from computer-based monitoring for its normal course of business. No services, delayed services, inadequate services and poor or delayed information flow all hinder or prevent the normal course of business. The health of the service-oriented approach, the communication flow and the services themselves directly equate to the health and vitality of the enterprise. By health we mean, availability, performance, integrity, and reliability of web services. This paper proposes and details an agent based approach for web service monitoring in an enterprise environment. The objective of this approach is to provide enhanced security, improved help desk information and attribution across a diverse web services landscape that is logically a system but physically distributed. The definition of the agents, their logical locations, their functionality and relationships has not been described previously. This architecture provides many advantages over previous methodologies for event monitoring including assignment of overlapping responsibilities, reduction in help desk effort and placement of measurements throughout the upper layers of the web services system. This is also the first enumeration of significant events and information requirements at the service level. It also assigns responsibility to the components （agents, handlers or the service itself） for logging and alerting such events. This architecture is currently being implemented by a major defense entity.

关键词： Help desk agent monitoring enterprise support services information sharing

Personal Delegation by Persona Creation

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Computer Technology and Application 2011年第6期2卷 413-423页

作者： Coimbatore S. Chandersekaran William R. simpson Institute for Defense Analyses 4850 Mark Center Dr. Virginia 22311 USA

There are many business needs for implementing delegation in IT （Information Technology） systems. However, existing approaches to delegation in IT systems are limited in their usability, flexibility, and capability to implement least privilege. The result is that delegation is either not implemented or is implemented informally （e.g., by sharing credentials [passwords or hardware tokens] between users）, resulting in serious security concerns and a lack of accountability. This paper describes a methodology for delegation based on the persona concept. A persona is a special category of user that embodies only delegated privileges, and which is explicitly assumed only after the ＂real＂ human user taking on that persona explicitly chooses it, This paper describes the persona delegation framework in the context of a large enclave-based architecture currently being implemented by a major enterprise. The creation of a persona solves a lot of downstream problems by allowing the persona to be treated like any other entity in the system. That is, identity, authentication, authorization, and other security processes already know how to handle an entity of this type. Benefits of the framework include increased flexibility to handle a number of different delegation business scenarios, decreased complexity of the solution, and greater accountability with only a modest amount of additional infrastructure required.

关键词： Delegation enterprise information security least privilege attribution information sharing

Crop Diversity Measurement at Dufuya Gardens and Insukamini Irrigation Scheme in Lower Gweru Communal Lands

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Journal of Environmental Science and Engineering(B) 2012年第5期1卷 673-681页

作者： Matsa mark Department of Geography and Environmental Studies Midlands State University Gweru 263 Zimbabwe

Dufuya wetland gardens and Insukamini irrigation scheme in Lower Gweru communal areas of Gweru district are two examples of how rural communities can be self-reliant if they are capacitated. This study sought to compare crop diversity between these two vegetable producing schemes. The location of the two areas and the selected plots were determined using the GPS （global positioning system） hand receiver. Maps of the quadrants were produced in a GIS （geographic information system） on a computer. simpson＇s index D = sum （pi2） was used to measure crop diversity while the Shannon-Weiner index （/4） was used to measure crop evenness. Results show that although both schemes are viable, Dufuya Gardens have higher crop diversity than Insukamini irrigation scheme. The study recommends that AGRITEX officers at Insukamini must advise farmers to diversify their crops in order for their produce to be more competitive on the market and also to cushion farmers against the effects of natural hazards. Given the success of the two schemes, the government must seriously consider sustainable utilization of the many small-scale dams and wetlands lying idle across the country for crop production in order to empower poor rural communities as well as alleviate poverty.

关键词： Crop diversity evenness Sirnpson's index Shannon-Weiner index.

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湄公河上的马克·吐温（英文）

大学英语 2019年第4期 20-24页

作者： Steven simpson 不详

Whenever I leave home for more than a week at a time, I bring with me a classic novel that 1 have never read. For a recent trip to southern Laos, I took mark Twain's A Connecticut Yankee in King Arthur's Court. It is a book that has been on my book shelf at home for over twenty years, and while 1 was packing my suitcase back in the United States, I grabbed it almost as an afterthought2. Il is not one of Twain ' s best books, but was one of only a few by him that 1 hadn't already read. I would not have guessed that the events in the book would have coincided with my travels in Laos quite so well.

关键词： leave home classic novel already read

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National preparedness training and exercises for Ebola cases in the United Kingdom

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World Journal of Clinical Infectious Diseases 2016年第1期6卷 1-5页

作者： Andrew D Black Hilary J Moulsdale mark R Evans John L simpson Emergency Response Department Public Health England

In response to the outbreak of Ebola Virus Disease in West Africa, the Emergency Response Department of Public Health England produced a series of training and exercising materials to help prepare health and partner organisations in England and other jurisdictions in the United Kingdom deal with a possible case of Ebola in the United Kingdom. They were produced with input from health(NHS England, Health Protection Scotland, Public Health Wales) and other partner organisations. The exercising materials have been used by colleagues working in national and local level organisations in the United Kingdom and other countries in the European Union. Presented here is a description of these training and exercising materials and how they were delivered to the end user.

关键词： Public health England Exercises Training Ebola Preparedness