改性沥青新型磨耗层在高等级路面上的应用

从材料、适用范围、形成机理、经济分析、施工工艺五个方面，介绍了改性沥青新型磨耗层在高等级路面上的应用，并通过试验路的观察表明，改性沥青新型磨耗层具有快速排水、增加摩阻力、愈合原路面微裂缝和较强抗磨耗的功能，是处置高等级路面上常有的龟裂、网裂、脱皮、露骨、抗磨系数不足、渗水等病害较具推广价值的新型施工工艺。     

连铸机油缸成套密封件国产化

本文论述了冶金行业中连铸机油缸密封件国产化的一些技术参数，同时也介绍了洪格尔型组合密封及夹布V型圈组合密封的使用特点。     

用于钻水平井的低密度水包油乳化钻井液

针对任平1井水平钻井的特点,研制了一种低密度、高油水比的水包油乳化钻井液。考察了乳化剂、增粘剂和配制工艺对乳状液性能的影响,评定了钻井液性能,介绍了现场应用情况。该钻井液性能稳定,润滑性好,净化井眼的能力强,能满足水平段钻井的要求。     

柘树青青

柘树是中华大地上最古老的树种之一,柘木是制弓的良材,汁能染赤黄色,叶可以饲蚕,皮、茎、叶、果实均可入药.早在远古时代,柘与人民的生活就有着密切的关系.历史上,柘就被用来命名后宫,柘枝还被用作曲调、歌舞之名.     

Assessing Consequences of Substance Use: Psychometric Properties of the Inventory of Drug Use Consequences.

Negative consequences are an important component of the substance use change process, yet no standardized measure exists to assess consequences of use. This study evaluated the psychometric properties of the Inventory of Drug Use Consequences, a self-report measure assessing drinking and drug use consequences. Participants (N=252) were assessed at entry into outpatient substance abuse treatment. Items loaded strongly on 1 factor, and internal consistency of the total scale was high. Fifteen items with the highest correlations with the total scale were chosen to represent the construct. The shortened measure exhibited good internal consistency, convergent and discriminant validity, and detected change over time and may be the measure of substance use consequences that is lacking in the field. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

国画“留白”在包装设计中的运用

"留白"是中国绘画艺术中的一个非常重要的术语,被广泛的应用在中国传统的书画创作中。"留白"是艺术达成审美交流的中介机制,它深刻的展开了艺术的创作过程与接受过程的视野融合,具有极高的设计与文化价值,是现代包装设计师在设计思维和设计手法上可供学习和借鉴的宝库。本文从国画"留白"艺术的构成方法、风格、布置等角度进行了论述。总结了其设计特点和艺术手段,以通过对国画"留白"艺术设计理念的探讨对现代包装设计给予启发与引导。     

计算机软件在教学中的运用

随着计算机的普及以及计算机技术的迅猛发展,计算机软件的应用已经深入到社会的各个角落。在学校,利用计算机软件进行教学早已不是什么新鲜事情了,老师想要做出一个非常好的教学课件,那就必须要用到计算机软件的帮助了。本文主要介绍了计算机软件在教学中的一些应用。     

SQL Server数据库在实际运用中的技巧探究

任何人在使用SQL Server数据库系统的时候,都希望自己能让SQL数据库发挥出他最佳的性能,但提供它性能的方法就是对其系统进行优化。本文主要通过笔者在日常工作生活中的经历和经验来简单讲述下SQL Server数据库在运用中的一些技巧。     

Investigating the Impact of Familiarity and Product Conditions on The Ease of Use of a Product

Ease of use is one of the main criteria that customers consider when making a purchase decision. To provide a pleasant experience to the customers, offering products or services consisting of advanced features and functions is no longer enough, due to the existing competition in the global market. In reality, the ease of use of any product is influenced by the conditions of the product and the familiarity of the user. This study examines the influence of the familiarity and the product conditions on the ease of use of a product. This only explains how the conditions of the product and the fa-miliarity of the user, influence on the ease of use of a product when the usage hours of a product increases. A case study would be conducted to validate the results. The results of this study indicate that in the case where both the product conditions and the familiarity has been varied, the ease of use of the product has been increased from 0.229 to 0.380 gradually within the 10 weeks period. Through these results valuable guidance could be obtained by the manufacturers to identify how the ease of use level of a product deviates from the standard level when the usage hours of the product would increase.     

Safety-based availability assessment at design stage

The availability of a system or equipment is one of the crucial characteristics that measures the customer satisfaction and strongly influences his final choice decision between concurrent products. The aim of this work is to provide an approach to improve the products availability assessment by taking into account the safety criteria by considering the use situations at design stage. Our work focuses on the routine design of complex products. The availability is often simply estimated considering reliability and maintainability. Basically, the intrinsic availability is the probability that it is operating satisfactorily at any point in time when used under conditions stated by design specifications. The time considered includes operating time and active repair time. Thus, intrinsic availability excludes from consideration all other times in the product lifecycle such as: accident management time, storage time, administrative time or logistic time. But many studies show that the loss of availability performance is also due to accidents that occur in different unforeseeable utilization situations. This engenders stops of the system to ensure the users safety according to standards recommendations. In this purpose, we consider the structural product architecture and the different use cases that correspond to the operational states and downtimes due to stop events that may happen during the utilization like failures, maintenance tasks and accidents. Then, we propose a product behavioral analysis including the use cases to describe interactions between the product and users or maintenance operators. We use Markov chains to model the use cases corresponding to operating time (OT), maintenance time (MT) and preparing time after accidents (RT). Then these three parameters are considered to specify a generic approach to improve the availability assessment. Such an approach provides the traceability of the product behavior along its lifecycle. In this way, the main causes of stop can be identified and this may guide the designer for improving the availability of the product future versions. To validate our approach, an application is presented considering a printing line. The comparison of our simulation considering an industrial case study shows a good agreement about the influence of safety on the availability.