逐步Ⅱ型寿命下逆Rayleigh分布参数的估计

在逐步Ⅱ型截尾样本下讨论了逆Rayleigh分布参数的估计问题,给出了参数的最大似然估计,并在三种不同的损失函数下给出了参数的Bayes估计和区间估计.最后给出了数值模拟的例子。     

高职通识教育的缺失与重构

高职院校要培养具备自我发展素质的"职业人",单纯依靠技术教育是无法完成的,必须将通识教育纳入其中。由于功利主义思想的影响、对人才培养目标认识的错位、理论研究的不足和师资等方面的原因,高职通识教育出现诸多缺失,严重影响了人才培养的质量。以"育人"为基点,以培养学生既"会做人"又"会做事"的能力为目标,重构通识教育体系,是高职院校必须认真面对和努力解决好的课题。     

高铝质多孔陶瓷的研制及多孔衬底的制备

本课题是研究高铝质多孔陶瓷的制备工艺 ,并在此基础上研制多孔衬底的制备工艺。一方面 ,以铝矾土为骨料 ,以粘土为结合剂 ,采用泥浆浇注法研制陶瓷管 ;另一方面 ,以α-Al2 O3粉料挤压成型研制出多孔陶瓷片。     

多媒体数据压缩技术探析

随着互联网的普及,人们对信息的需求尤其是多媒体信息的需求日益增长。为保障大容量的多媒体数据在互联网上的有效传输,必须对多媒体数据进行压缩处理。利用有损压缩和无损压缩方法,对图像、音频、视频等多媒体数据进行压缩,形成联合图像专家组JPEG和运动图像专家组MPEG等常用压缩标准。     

Persuasive impact of loss and gain frames on intentions to exercise: A test of six moderators

The current study situated loss/gain-framing research in the extended parallel process model and tested whether two message features (dose, efficacy appeals) and four individual difference variables (walking self-efficacy, grit, consideration of future consequences, health information overload (HIO)) moderated the impact of message framing on intentions to engage in physical activity. Adults (N?=?341, M_age?=?38.09, SD?=?10.94) were randomly assigned to one of eight message conditions advocating exercise behavior. All four individual difference variables significantly moderated framing effects such that gain-framed messages were more effective for individuals with lower walking self-efficacy, grit, and consideration of future consequences and loss-framed messages were significantly more effective for individuals with higher walking self-efficacy, grit, consideration of future consequences, and for those with lower HIO.     

北京市商业体育俱乐部消费行为研究

本研究运用文献研究法、调查研究法和数理研究法,对北京市商业体育俱乐部的经营问题从微观经济学的角度出发,从经营者和消费者两个层面进行了系统分析,得出了比较客观的结论。     

The Effects of Personal and Social Uses of Mobile Health Applications on Healthy Behaviors

In the face of America’s obesity epidemic, mobile health applications (MHAs) offer solutions for motivating users to be healthier. MHAs include both personal features for the individual user (e.g., calorie tracking) and social features, which connect the user to others (e.g., for support or competition). The present study explores the connection between both personal and social uses of MHAs and healthy behaviors. Findings indicate that the use of MHAs is positively associated with healthier overall behaviors: Personal aspects were related to healthier eating and workout behaviors, and social aspects were positively associated with only healthier workout behaviors. Perceptions of social support from others predicted healthier overall behaviors and were related to increased body satisfaction. Implications for the role of social support in MHAs are discussed.     

转动单星星风与角动量损失及演化的研究

在转动单星旋转椭球体模型下提出非均匀的星风与角动量损失理论,数值模拟两种损失在转动单星表面的分布以及两种损失影响下转动单星的演化。