蓝鲸集群文件系统中资源交互一致性协议

在蓝鲸集群文件系统中,分布式资源交互在系统异常的情况下会出现资源状态不一致的情况,为解决这一问题,该文提出分布式资源交互一致性协议S2PC-RT。S2PC-RT引入资源交互序号保证一致性,通过增加资源申请空间减少消息等待。证明协议的正确性,并在蓝鲸集群文件系统中实现了协议。测试结果表明,S2PC-RT能够保证资源的一致性,有效提高分布式资源的交互性能。     

Improvement of electrochemical properties of PEO–LiTFSI electrolyte by incorporation of boroxine polymers with different backbone lengths

A series of boroxine polymers (BP) with different backbone lengths were synthesized. Polymer electrolytes prepared by blending poly(ethylene oxide) (PEO) and BP with Li(N(SO ₂CF₃)₂) (LiTFSI) were evaluated. Better performance was observed by addition of BP in the PEO based polymer electrolyte. The effect of the backbone length of BP on electrochemical properties of PEO–BP–LiTFSI electrolyte systems was investigated. Compared with the PEO–LiTFSI system, about five times higher ionic conductivity at low temperature and five times higher lithium ion transference number at 70°C were achieved by incorporation of long chain BP in the electrolyte. Short chain BP exhibited outstanding performance in decreasing interfacial resistances on both anode and cathode surfaces. Good battery performance was also observed for these BP containing hybrid polymer electrolytes.     

Vanadium doped ceramic matrix Li6.7La3Zr1.7V0.3O12 enabled PEO-based solid composite electrolyte with high lithium ion transference number and cycling stability

Solid polymer electrolytes (SPEs) have attracted much attention because of their potential in improving energy density and safety. Vanadium doped ceramic matrix Li_6.7La₃Zr_1.7V_0.3O₁₂ (LLZVO) was synthesized by high-temperature annealing, and formed a composite electrolyte with polyethylene oxide (PEO). Compared with pure PEO electrolyte membrane, the composite electrolyte membrane exhibited better ionic conductivity (30 °C: 3.2 × 10^?5 S cm^?1; 80 °C: 3.6 × 10^?3 S cm^?1). The combination of LLZVO was beneficial to improve the lithium ion transference number (t_Li⁺) of SPE, which was as high as 0.81. The Li/SPE/LiFePO₄ battery shows good cycling ability, with a specific capacity of 142 mAh g^?1 after a stable cycle of 150 cycles. Meanwhile, the symmetrical lithium battery with composite electrolyte can work continuously for 1200 h without short circuit at the current density of 0.1 mA cm^?2 at 50 °C, and the capacity is 0.176 mAh. Vanadium doped ceramic matrix LLZVO as an active ionic conductor, improved the overall performance of solid electrolyte.     

Understanding trust in ms-commerce: The roles of reported experience,linguistic style,profile photo,emotional, and cognitive trust

This paper examines what influences trust in mobile social commerce environment. Drawing on trust-based acceptance model (i.e. cognitive and emotional trust) and online review features (i.e. profile photo, linguistic style, and reported experience), we examine how these factors affect trust in mobile social commerce. Hypotheses were tested using survey data. The results of our model showed that there are significant influences of profile photo, reported experience, cognitive, and emotional trust towards trust in ms-commerce. This work contributes to existing literature by examining the roles of previous trust in mobile payments and online reviews on trust in mobile social commerce.     

The concept of God in the psychological formation of females.

We use theory and research to argue that a cultural concept of God profoundly influences female psychological development. God, as the most mythologically and historically significant transitional object, influences the developmental path of an object representation of God, the related self-representation, and the child's future relationship to a larger cultural arena of human living. We use a clinical case example to illustrate how a positive transference and an alternative concept of God mutually influence the elaboration of a God representation derived from a maternal imago, which in turn frees the patient to explore her early object representations. We close by stressing that a culture's myths and symbols, particularly the culture's God concept, have theoretical and clinical relevance in the psychological development of the individual. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

信息——决策分析法的改进

Bayes决策的不足之处在于它忽略了信息的准确度。本文分析了其产生的原因,得到了几个重要定理,并对其修正方法—信息—决策分析法做了改进,使决策结果更加合理。     

The subjugation of the body in eating disorders: A particularly female solution.

Object relations theorists have explained the ruthless control of the body seen in eating disorders as an attempt to dominate the bad maternal object. It is more useful clinically to view it as an attempt to subjugate one's needy self experience. The patient's vehement denial of need makes it much more difficult to develop a self-object transference. The split between needing and not needing in the patient's subjectivity is reciprocally related to a specific split in the therapist's subjectivity between worry and neglect. Many more women than men develop eating disorders because women are more likely to use their bodies to contain their disavowed, intolerable need states, whereas men are more likely to experience the Other in this way. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

氢分子在Li(100)面的吸附旋转势能面研究

利用推广的LEPS势分析H_2在Li(100)面的吸附、迁移、旋转等行为.给出的这种作用是短程相互作用,它因吸附位、吸附方式不同而不同,使H_2分别呈稳定分子吸附态、亚稳分子吸附态.这些吸附态通过H_2沿表面迁移而相互转换;通过H_2绕质心的转动而进行立式与卧式吸附方式之间的转变.并指出亚稳分子吸附态具有变型小、属弱化学吸附,迁移性强,不易解离成原子等特性.     

Effect of calixpyrrole in PEO-LiBF4 polymer electrolytes

It is shown that the addition of calix[6]pyrrole to polyether based electrolytes doped with LiBF₄ results in an considerable increase in the cation transport number tLi+ as confirmed by dc-ac current techniques as well as by PFG NMR studies. The value of tLi+ in composite electrolytes beyond a certain minimum value weakly depends on the concentration of added calix[6]pyrrole. The increase in lithium transference number is associated with a decrease in ionic conductivity of composite polymeric electrolytes compared to the pure PEO-LiBF₄ systems.     

有机玻璃中溶剂迁移现象的钠光测试方法

提出一种基于钠光和斐索干涉原理、采用数字图像处理技术测量高聚物体系中溶剂迁移现象的方法。重点介绍了图像处理的步骤和方法、用K-L变换对细化条纹进行条纹间距的计算。结果表明,用该方法所开发的测试系统有良好的人机对话界面,能方便、准确地测出干涉条纹的间距值。通过测试丙酮和乙醇在有机玻璃配制的聚合物膜中的迁移过程,得出了相应的干涉条纹变化规律,从而得到两种溶剂迁移过程中高聚物折射率的变化规律。结果表明,在迁移的过程中,随着时间的推移,条纹间距变小,而且变化程度逐渐减小;在同样的条件下,不同物质的迁移速度有很大的差异。