Long Term Change in Level-Volume Relation of an Accountability Tank for Plutonium Nitrate Solution

A slight change in the level-volume relation for an accountability tank for a large amount of plutonium nitrate solution (PuN) was observed at the Plutonium Conversion Development Facility (PCDF) in the Power Reactor and Nuclear Fuel Development Corp. (PNC), Tokai Works. From the results of annual tank re-calibrations for the plutonium receiving tank from 1985 to 1992 using the incremental feed of nitric acid as the density standard, it became clear that the relation between the level and the volume changed slightly, and the rate of the change was a linear function of operating time. Also it became clear that the change was linear in relation to the level. In the PCDF, the cumulative change in the volume at the nominal level was evaluated to be 0.1% during 8 years' operation. It was also evaluated that the repeatability of the re-calibration is much better than 0.1%. A reasonable frequency of tank re-calibration is once every 5 years.     

A grounded theory examination of project managers' accountability

26 interviews were conducted with a snowball sample of project managers to explore how project managers were influenced by accountability arrangements and how they responded to accountability demands. Using a grounded theory approach to code the interview data, this study revealed that project managers develop new skills to respond to accountability demands. These effects are facilitated by the interaction of resource-based mechanisms and reflexivity that interact with the contextual factors of the project. The study broadens the understanding of accountability in project management and suggests a model for further empirical examination.     

Accurate Volume Measurement System for Plutonium Nitrate Solution

Abstract

An accurate volume measurement system for a large amount of plutonium nitrate solution stored in a reprocessing or a conversion plant has been developed at the Plutonium Conversion Development Facility (PCDF) in the Power Reactor and Nuclear Fuel Development Corp. (PNC) Tokai Works. A pair of differential digital quartz pressure transducers is utilized in the volume measurement system. To obtain high accuracy, it is important that the non-linearity of the transducer is minimized within the measurement range, the zero point is stabilized, and the damping property of the pneumatic line is designed to minimize pressure oscillation. The accuracy of the pressure measurement can always be within 2 Pa with re-calibration once a year. In the PCDF, the overall uncertainty of the volume measurement has been evaluated to be within 0.2%. This system has been successfully applied to the Japanese government's and IAEA's routine inspection since 1984.     

关于一起火灾延伸调查责任追究的思考

文章结合一起火灾事故案例,对火灾延伸调查现状展开定性分析,就具体追责情形、如何落实责任追究及后续整改问题进行初步探讨,对进一步落实火灾延伸调查,优化调查中的各项流程,切实深入推进火灾“一案三查”,将调查结果转化为提高社会火灾防控能力具有一定的现实意义。     

基于善治视角的我国高校问责制发展趋向

当前,我国高校中的腐败现象、泛行政化倾向给高校的发展带来了许多消极影响,推行高校问责制是我国高校改革与发展的必然选择。善治为我国高校问责制的实施奠定了理论基础,善治视野下我国高校问责制的发展趋向主要有：由＂事后问责＂走向＂预防问责＂;由重＂问＂走向＂问＂与＂答＂的结合;由重＂惩＂走向＂奖＂与＂惩＂的结合;由注重＂他律＂走向＂自律＂与＂他律＂的结合;由注重＂上问下责＂走向＂下问上责＂与＂上问下责＂的结合。     

A non‐repudiable negotiation protocol for security service level agreements

Security service level agreements (SSLAs) provide a systematic way for end users at home or in the office to guarantee sufficient security level when doing business or exchanging sensitive personal or organizational data with an online service. In this paper, we propose an SSLA negotiation protocol that implements non‐repudiation with cryptographic identities and digital signatures and includes features that make it resistant to denial of service attacks. The basic version of the protocol does not rely on the use of a trusted third party, and it can be used for all kinds of simple negotiations. For the negotiation about SSLAs, the protocol provides an option to use an external knowledge base that may help the user in the selection of suitable security measures. We have implemented a prototype of the system, which uses JSON Web Signature for the message exchange and made some performance tests with it. The results show that the computational effort required by the cryptographic operations of the negotiation protocol remains at a reasonable level. Copyright © 2014 John Wiley & Sons, Ltd.     

The effect of computer-assisted cooperative learning methods and group size on the EFL learners’ achievement in communication skills

This study explored the effect of cooperative learning small group size and two different instructional modes (positive interdependence vs. individual accountability) on English as a Foreign Language (EFL) undergraduate learners’ communication skills (speaking and writing) achievement in computer-based environments. The study also examined the effects of disclosing/blinding the participants’ identities while interacting around computers on their post-test. The findings of the study revealed that the computer-based environment enabled the participants to blind their identities and reduce their anxiety from face-to-face debate, and so was very helpful in developing their communication skills. The use of the individual accountability mode was quite useful compared with the positive interdependence mode as it enabled all group members to perform their roles significantly. The 5-student group also significantly outperformed other groups of 2-7 members on the post-test communication skills. In conclusion, the findings of this study bring us a step closer to understanding the technique of cooperative language learning and group size.     

完善高校学术问责制的思路

在国外,尤其是英美等发达国家,教育管理领域内的问责制无论从制度建设到立法还是从研究到实践,都已比较成熟与完善。而正在开展的我国高校问责制的研究则还只是停留在表层的探讨上。特别是高校学术问责,尚未针对实际问题进行系统研究,实践更有待完善。在学术不端行为不断滋生、蔓延,且有愈演愈烈之势的当前。建立以学者为主体的高校学术道德委员会,实行问责主体学者化、责任认定客观化,以及改革高校“官学一体”的学术管理体制与摒弃量化式的科研业绩考核,乃是完善高校学术问责制的重中之重。同时,倡导“学术为本”,坚持“学术自律”及强化人文关怀理念的学术问责文化建设也不可或缺。     

云存储完整性问责方案设计与实现

云存储是存储技术的发展趋势.针对在云端存储的文件数据的完整性遭到破坏时无法确认责任的问题,提出云存储完整性问责方案,在完成每次操作后由用户、云存储提供商和可信第三方交互,生成用于问责审计的不可抵赖的凭单.设计了凭单生成协议和问责审计协议,并对问责方案的有效性和安全性进行了分析.该方案不仅能够在用户数据完整性遭到破坏时确认谁应为此负责,还能对用户和凭单链表的完整性提供保护.     

Herding Cats: Lessons Learned From Managing and Coordinating Organization Development Consultants.

Organizations need to prevent or ameliorate the unanticipated counterproductive consequences of recruiting, selecting, contracting with, deploying, and holding their consultants accountable. This article documents the creation of what was, in 1991-1992, a new organizational role: A designated "coordinator of consultants" for the client system. Also documented are a number of lessons learned during the first 14 months of experience with this new role. These observations, or "Lessons Learned," also seem to be pertinent to the emerging and increasingly recognized field of consulting psychology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)