浅谈钢筋砼现浇板裂缝的预防

分析钢筋混凝土现浇板产生裂缝的原因,主要论述温度-收缩应力对钢筋混凝土现浇板产生裂缝的影响。对温度-收缩应力作用产生裂缝提出预防措施。     

温度和收缩应力对现浇混凝土板面裂缝的影响及预防措施

分析钢筋混凝土现浇板产生裂缝的原因，主要论述温度-收缩应力对钢筋混凝土现浇板产生裂缝的影响，提出避免温度-收缩应力作用下过大裂缝的生成及对结构产生破坏的预防措施。     

现浇钢筋混凝土楼板裂缝的形成及控制措施

从建筑、结构的设计角度出发，分析了钢筋混凝土现浇楼板裂缝产生的原因，提出了裂缝控制措施。     

混凝土现浇楼板裂缝分析

针对混凝土现浇楼板的裂缝问题，结合工程施工经验，就裂缝产生的原因进行了分析，并提出了避免产生裂缝应采取的防治措施。     

现浇砼楼板施工裂缝的控制及处理

阐述了现浇砼楼板施工裂缝产生的机理、状况及产生的原因，并提出了应抓好砼施工过程中几个重要环节来进行裂缝控制，以及对待施工裂缝的正确态度。     

住宅工程现浇混凝土楼板裂缝的分析与控制

依据民用住宅工程现浇混凝工楼板裂缝的类型及特征,从设计、施工角度探讨了楼板裂缝的性质及产生裂缝的原因,并且针对楼板裂缝的成因,提出了设计、施工方面的裂缝控制措施.     

天面钢筋混凝土楼板裂缝原因及防治措施

分析天面钢筋混凝土楼板裂缝产生的原因，提出了相应的防治措施。     

住宅建筑现浇楼板裂缝的成因和防治措施

混凝土现浇楼板是一种量大面广的受力构件，稍有不慎，极易产生裂缝。由于裂缝的产生，对建筑的耐久性，观瞻性及使用功能等均造成影响。导致楼板产生裂缝的因素较多，除了主观意识上的不重视之外，技术上的综合防治措施更是关键。     

建筑施工中楼面裂缝的成因及防治

文章针对高层住宅现浇楼板裂缝这一质量通病,结合大量施工实践的经验和教训,阐述了楼板产生裂缝的原因,并探讨了综合防治措施和处理方法,指导实际施工中对楼面裂缝进行有效控制。     

住宅楼现浇混凝土楼板裂缝分析和预防措施

住宅楼现浇混凝土楼板工程施工时,经常会出现不同程度的裂缝,这些不同程度的裂缝在施工时应进行有效的防治,避免造成更大的影响。本文就裂缝产生原因和防治措施进行了探讨。     

VPN技术在企业网络中的应用

随着企业网络技术的普及,员工需要随时随地联入企业网.随着企业本身发展壮大与跨国化,企业分支机构遍布世界.企业与各战略伙伴也需要随时通信.这涉及到远程安全接入企业网络.为了保证数据在网络传输时的安全,通常需要为每个分部建立独立的专用链路,这样就会造成投资大、工程难以实施.为了解决上述问题,采用了虚拟专用网(VPN,vitual private network)技术,即利用公共服务网络(如因特网)实现企业数据的安全通信和加密.     

The relevance of Aristotle’s conception of eudaimonia for the psychological study of happiness.

According to the ethical system of eudaimonism, a philosophy that predates Aristotle, individuals have a responsibility to recognize and live in accordance with their daimon or "true self." The daimon refers to the potentialities of each person, the realization of which represents the greatest fulfillment in living of which each is capable. The daimon is an ideal in the sense of being an excellence, a perfection toward which one strives and, hence, it can give meaning and direction to one's life. Eudaimonia, then, is activity in accordance with one's daimon. This is what is considered worth having in life. Since Aristotle in the Nicomachean Ethics is concerned with the proper ends of human functioning, he rejects the view of eudaimonia as a subjective state equivalent to, or similar to, hedonic enjoyment. But if psychologists are to be able to make productive use of the Aristotle's conception of eudaimonia, it must be rendered in a form more congenial to the field. In pursuing this goal, I have found it necessary to take several significant departures from the Aristotelian perspective, while I have endeavored to remain true to Aristotle's ethical objectives. The most important of these departures is to consider eudaimonia to have a subjective component embodying the experiences that flow from efforts to live in truth to one's daimon by striving to develop one's aptitudes and talents for purposes deemed worth having in life. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

难处理金矿石提炼技术研究进展

黄金是稀贵金属,具有货币和商品双重属性的特殊资源性产品,黄金具有很大的需求市场。目前,国内外对含氰毒浸金法主要的预处理方法有焙烧氧化法、热压氧化法、生物氧化法、化学氧化法、堆浸法、微波氧化法等。而对于难处理金矿的无氰毒浸金法有硫脲法,卤化法,多硫化物法,硫代硫酸盐法,浮选法等。因此正在不断寻求新的环保型的新方法。     

Rapid Bridge Replacement under Emergency Situation: Case Study

The terrorist attack on September 11, 2001, and subsequent potential threats to the United States transportation systems have presented an urgent need to elevate the security of the transportation infrastructure and to develop emergency response plans to quickly react to the possible consequences of an extreme event. Highway bridges, as critical components of the nation’s transportation network, have been brought to closer attention by government agencies. A research project was conducted to identify strategies and technologies to restore the use of a damaged bridge quickly. One of the tasks associated with the research was to perform several case studies of previous bridge replacements following extreme events. These events include explosion and fire caused by vehicle impact, vessel collision with a bridge, and damage caused by flood and earthquake. By studying the cases, the research team seeks to identify and expand on lessons learned and address which actions did and did not work well given the circumstances of the incident. These lessons have great value to the people who need to develop and implement an emergency response plan.     

Report of the Treasurer: 1980: Onward, financially and morally.

APA is in very good shape financially as a result of procedures and attitudes within the Council of Representatives and elsewhere in the Association's governance. We are able to maintain a balanced budget and to enjoy surpluses--though we can be certain that this will not continue forever--and at the same time to be reasonably solicitous of personal and social needs of the disadvantaged in our midst. At a time when the federal government finds it necessary to abandon or drastically cut programs to help the voiceless and other victims of our society, it is heartening to note that in our small way we psychologists are able to walk both sides of the street, that is, to help those who need our help, but to do so without imperiling our financial solvency. Despite spiraling inflation, the Association continues to produce a surplus from operations, as mandated by the Council of Representatives, while being responsive to the needs of the membership in a swiftly changing environment. In addition to the goal of building our reserves, we are dedicated to the continuation of all existing APA programs in our constant attempts to advance psychology as a science and profession and as a means of promoting human welfare. Financial statements for 1979-1981 are provided. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Acculturation, distress disclosure, and emotional self-disclosure within Asian populations.

Research into youth mentoring suggests that programs focused on specific practices (e.g., emotional disclosure and collaborative relationships) increase the likelihood of a successful mentoring relationship, factors similar to the psychotherapy literature. However, research into psychotherapy with Asians has indicated that these factors, based on Western values, are less effective, especially with those who are less acculturated. To test the relevance of these factors within mentor-type relationships, this study examined the relationship between acculturation and distress disclosure, and the relationship between acculturation and the retrospective willingness to emotionally self-disclose to friends and unrelated, trusted adults in 98 participants representing several ethnic Asian backgrounds. Both values-based and behaviorally based acculturation measures were used. Values-based, but not behaviorally based acculturation, predicted distress disclosure (i.e., less acculturated individuals were less likely to disclose distress). Using an imagery protocol, participants were then asked to think back to adolescence and indicate their willingness to self-disclose emotions to friends and unrelated, trusted adults. Participants were more willing to self-disclose emotions to friends compared to unrelated, trusted adults, regardless of values acculturation level. However, a significant interaction occurred in an unanticipated direction using behaviorally based acculturation. Less behaviorally acculturated individuals were more willing to disclose emotions to unrelated, trusted adults compared to more behaviorally acculturated individuals. Discussion regarding the results revolved around the utility of a behavioral measure of acculturation, values and behaviors in acculturation, the role of older persons in Asian culture, and the possible role of community in the acculturation process. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Verbal deception from late childhood to middle adolescence and its relation to executive functioning skills.

The present investigation examined 8- to 16-year-olds' tendency to lie, the sophistication of their lies, and related cognitive factors. Participants were left alone and asked not to look at the answers to a test, but the majority peeked. The researcher then asked a series of questions to examine whether the participants would lie about their cheating and, if they did lie, evaluate the sophistication of their lies. Additionally, participants completed measures of working memory, inhibitory control, and planning skills. Results revealed that the sophistication of 8- to 16-year-olds' lies, but not their decision to lie, was significantly related to executive functioning skills. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

硅铝铁合金中硅、铝、铁的快速测定

试样以硝酸、氢氟酸溶解后，用硼酸配位络合过量的氢氟酸，定容后，移取部分用钼蓝光度法测定硅含量。另取部分加高氯酸加热冒烟驱除去硅和氟，消除干扰，加过量的EDTA标准溶液与铝络合，用锌标准溶液滴定过量的EDTA标准溶液，加入氟化铵释放出与铝络合的EDTA，再用锌标准溶液滴定，求得铝含量。以三氯化钛一重铬酸钾滴定法测定含铁量。     

Emergency Contracting Strategies for Federal Projects

During the past decade, government agencies have struggled to adequately respond to emergency events that require labor, materials, equipment, and services provided by construction contractors. In fact, the criticism directed at government agencies during their response to, and recovery after, recent events is a testament to the insufficient contracting strategies that were implemented. Countless media headlines highlighted the fragmented approach used to hire contractors expeditiously, and several agencies were criticized for their inconsistent contracting methods. As a result, a study was initiated to investigate the differences between normal federal contracting procedures, as outlined in the Federal Acquisition Regulation (FAR), and emergency acquisition procedures that are permitted by the FAR. The study found six examples of waivers to the usual regulations or expedited contracting techniques permitted by the FAR. Furthermore, the study highlighted five emergency contract strategies that are available to the Navy (as one example of a government agency with contracting authority) and may be available to other governmental contracting authorities as well. Consequently, the purpose of this paper is to identify emergency contract strategies that can be used by government agencies and to outline the criteria that must be met to use each strategy.     

The infernal now: Linking temporal inefficacy to cognitive ability and social adjustment.

In three studies with younger and older adults, we examined the correlates of temporal inefficacy (TI), that is, discontent with the uncontrollability of the passage of time experienced as linear. Among young adults, high versus low TI was related to greater subjective salience of the present, but guided focus on either conception or death eliminated this relationship. Among older adults, higher TI was inversely related both to the capacity to engage in mental time travel—as assessed by an autobiographical recall task, suggesting that the salience of the present associated with TI reflects chronic difficulty in accessing past and future—and to working memory capacity, illustrating the pivotal role of cognitive resources in effective coping among older adults. Reflecting the perceived lack of control inherent to TI, higher TI was linked to compensatory efforts to reassert personal control in other domains—specifically, a heightened tendency to personalize and overattribute meaning to random events, a greater expressed willingness to subordinate a spouse's well-being to one's own, and a callous, manipulative attitude toward other people in general. Finally, TI was inversely related to age, suggesting that maturation may include reconciling oneself to the existential limits imposed by linear time. (PsycINFO Database Record (c) 2010 APA, all rights reserved)