高柔性车型零部件储存机构的设计思路

随着我国汽车市场竞争的日益激烈,顾客需求的车型种类越来越丰富,汽车更新换代的速度也越来越快。高柔性车型智能生产线的打造,带来工装增多、车型工装切换耗时长,主线、前车体、侧围无法同比例时间切换等问题,导致区域间等待浪费,产能损失大。为解决切换车型产能损失问题,本文设计了一种高柔性车型零部件储存机构,打破原有的切换模式,减少因缺侧围总成导致的切换等待时间浪费,以保证产能的提升。

基层医疗机构药品储存不合理现状分析

目的分析部队医疗机构药品储存现状,并提出对策。方法结合实际讨论分析西南地区军队医疗机构药品储存中的不合理现象。结果西南地区军队基层医疗机构药品储存尚未纳入药品安全监管机制,管理模式有待提高。结论药品质量是用药安全的关键,医疗机构的药品储存对药品质量有重要的影响,必须重视并改善医疗机构药品储存中的不合理现状。

New Generation Processor Architecture Research

With the rapid development of microelectronics and hardware,the use of ever faster micro processors and new architecture must be continued to meet tomorrow′s computing needs. New processor microarchitectures are needed to push performance further and to use higher transistor counts effectively.At the same time,aiming at different usages,the processor has been optimized in different aspects,such as high performace,low power consumption,small chip area and high security. SOC (System on chip)and SCMP (Single Chip Multi Processor) constitute the main processor system architecture.

Authorized Identity-Based Public Cloud Storage Auditing Scheme with Hierarchical Structure for Large-Scale User Groups

Identity-based public cloud storage auditing schemes can check the integrity of cloud data, and reduce the complicated certificate management. In such a scheme, one Private Key Generator(PKG) is employed to authenticate the identity and generate private keys for all users, and one Third Party Auditor(TPA) is employed to by users to check the integrity of cloud data. This approach is undesirable for large-scale users since the PKG and the TPA might not be able to afford the heavy workload. To solve the problem, we give a hierarchical Private Key Generator structure for large-scale user groups, in which a root PKG delegates lower-level PKGs to generate private keys and authenticate identities. Based on the proposed structure, we propose an authorized identity-based public cloud storage auditing scheme, in which the lowest-level PKGs play the role of TPA, and only the authorized lowest-level PKGs can represent users in their domains to check cloud data's integrity. Furthermore, we give the formal security analysis and experimental results, which show that our proposed scheme is secure and efficient.

Nuclear Power in the Fuel and Energy Complex of Ukraine

Nuclear power is a powerful and effective energy branch in Ukraine. There are currently 4 active nuclear power stations （NPS） and 13 operational VVER energy units, producing a total power of 11880 MW, in the country. According to the data collected from the International Agency of Nuclear-Power Energy, Ukraine is in seventh place for the largest supply of uranium on the planet. The use of nuclear power in Ukraine includes： extraction and processing uranium ore, production of UF6, production of zirconia rental and purveyances from a zirconia alloy, production of heat-radiating collections, storage of exhaust nuclear fuel and nuclear wastes. The realisation of uranium isotopic enrichment is the main problem in the structure of organisation in nuclear fuel production in Ukraine. This country has a unique station, non-operative Chemobyl NPS, where different types of wastes are located. Two factories are currently being built there in order to process the liquid and solid radio-active wastes. In perspective, Ukrainian nuclear-power energy will be enriched with new nuclear-power units and security systems to ensure safe manufacturing.

South Africa＇s Nuclear Forensics Response Plan Step 1 - in Support of Nuclear Security Investigations

In South Africa, the nuclear forensics approach and its functions hosted and managed by Necsa, in support of any nuclear security investigations, start from the incident scene when the nuclear or radioactive material （that is out of regulatory control） is being handled and handed over to Necsa Emergency Control Centre by the South African law enforcement agencies in the presence of NOMS Department official. The main objective of this approach is to increase the credibility status of the chain of custody on the handling of the material during incident （crime） scene management process （for both nuclear forensics and traditional forensic evidence collection） and its transportation from the scene to the suitable storage facility at Necsa. Aspects to be looked into during the response process include interactions between law enforcement agencies, Necsa relevant departments and the National Nuclear Regulator of South Africa. This paper focuses on the entire whole response process and associated prior arrangements, in order to show and provide a set of requirements attached to the material, the scope of critical relevant technical and law enforcement information that to be acquired by all parties involving and participating in the nuclear/radiological incident or event response process before the material is authorized for storage at a suitably qualified Necsa＇s nuclear forensics, which is dedicated storage facility on Pelindaba site.

Recent progresses of micro-nanostructured transition metal compound-based electrocatalysts for energy conversion technologies

The rapid consumption of fossil fuels has caused increasingly climatic issues and energy crisis,which leads to the urgent demand for developing sustainable and clean energies.Electrocatalysts play a key role in the development of electrochemical energy conversion and storage devices.Especially,developing efficient and cost-effective catalysts is important for the large-scale application of these devices.Among various electrocatalyst candidates,earth abundant transition metal compound(TMC)-based electrocatalysts are being widely and rapidly studied owing to their high electrocatalytic performances.This paper reviews the recent and representative advances in efficient TMC-based electrocatalysts(i.e.,oxides,sulfides,selenides,phosphides,carbides and nitrides)for energy electrocatalytic reactions,including hydrogen evolution reaction(HER),oxygen evolution reaction(OER)and oxygen reduction reaction(ORR).Different compounds with different applications are summarized and the relative mechanisms are also discussed.The strategies for developing earth-abundant and low-cost TMC-based electrocatalysts are introduced.In the end,the current challenges and future perspectives in the development of TMC research are briefly discussed.This review also provides the latest advance and outlines the frontiers in TMC-based electrocatalysts,which should provide inspirations for the further development of low-cost and high-efficiency catalysts for sustainable clean energy technologies.