Estimation of the extended Weibull parameters and acceleration factors in the step-stress accelerated life tests under an adaptive progressively hybrid censoring data

ABSTRACT

Based on the tampered failure rate model under the adaptive Type-II progressively hybrid censoring data, we discuss the maximum likelihood estimators of the unknown parameters and acceleration factors in the general step-stress accelerated life tests in this paper. We also construct the exact and unique confidence interval for the extended Weibull shape parameter. In the numerical analysis, we describe the simulation procedures to obtain the adaptive Type-II progressively hybrid censoring data in the step-stress accelerated life tests and present an experimental data to illustrate the performance of the estimators.     

Assessment of supplier performance based on product-development strategy by applying multi-granularity linguistic term sets

Measuring supplier performance possesses the properties of multi-dimension and multi-scale, it increases the complexity of the aggregation and assessment process. A focal company must develop an effective procedure for overcoming the complexity of performance measurement. Furthermore, the assessment of supplier performance must conform to the product-developed strategy of the focal company. This study is a further research deeper into the concept already introduced in Chang et al. [1] [Applying fuzzy linguistic quantifier to select supply chain partners at different phases of product life cycle. International Journal of Production Economics 2006; 100(2):348–59]; using multi-granularity linguistic variable and numerical ration scale to represent the overall supply performance. By unifying the derived information, the measurement complexity could be resolved. The fuzzy preference was constructed to adjust the consistent direction and transform information into fuzzy relationship. Finally, fuzzy linguistic quantifier guided ordered weighted aggregation (FLQG-OWA) operator with maximal entropy was computed and aggregated with all indicators to meet the current policy of the focal company.     

The Granular Origins of Aggregate Fluctuations

This paper proposes that idiosyncratic firm‐level shocks can explain an important part of aggregate movements and provide a microfoundation for aggregate shocks. Existing research has focused on using aggregate shocks to explain business cycles, arguing that individual firm shocks average out in the aggregate. I show that this argument breaks down if the distribution of firm sizes is fat‐tailed, as documented empirically. The idiosyncratic movements of the largest 100 firms in the United States appear to explain about one‐third of variations in output growth. This “granular” hypothesis suggests new directions for macroeconomic research, in particular that macroeconomic questions can be clarified by looking at the behavior of large firms. This paper's ideas and analytical results may also be useful for thinking about the fluctuations of other economic aggregates, such as exports or the trade balance.     

人民的美好生活需要在体面劳动中实现 ——马克思体面劳动观的当代解读

实现人民的美好生活需要,根本的就是实现劳动人民的美好生活需要。劳动人民通过劳动创造实现人民美好生活需要的物质基础,理应因此体面地活着。劳动本身是美好生活的重要内容,应保障劳动者体面地有劳动,即体面地就业。劳动者体面地而非痛苦地劳动是充分实现人的本质,实现美好生活的关键环节。在日常生活用语中,体面生活实际是美好生活的另一表达。马克思体面劳动观的基本内容与实现人民的美好生活需要的根本维度恰相对应,启示我们人民的美好生活需要在体面劳动中实现。     

郭象与魏晋玄学的生存转向

生命的意义与价值是哲学的永恒主题。魏晋时期,玄学思想家将思考的重点转向人的生存,并从本体的高度诠释了生存可能性。王弼、嵇康在会通儒道的原则上出现了分歧,但都将生存问题纳入各自视野,彰显出人的超越意识。郭象创造性地诠释了《庄子》文本中"自由"与"逍遥"的现实含义,将"道通为一"的精神境界含涉在世界之中,为人的生存可能性找到了新的形上依据。     

论朱自清性格及政治心态的转向

朱自清一向被研究者称为"狷者",然而纵观其一生,这个概括显然是不全面的。除了"狷者"这一性格特征,在不同时期朱自清也有"狂者"、"中庸者"的表现,这从朱自清一生的创作和革命实践中可观察出来。尤其值得关注的是,朱自清后期政治心态发生了很大程度的转变,这可以作为中国现代知识分子在变革年代中人生道路选择的典型代表。这一转变的背后,既蕴藏着个人性格方面的因素,也流露出时代、社会等外部环境所施加的影响。     

Propagation of Bergson＇ s Thought before and after the New Culture Movement and China＇s Modern Ideological Trend

新文化运动前后,柏格森被译介入中国现代哲学、思想领域,由此所掀起的“生命意识”和“生命直觉”思潮给中国现代思想的形成提供了跨文化语境的西方学术资源,在我国思想界、哲学界及文艺理论界都产生了重要影响。回顾梳理柏格森思想传播与中国现代思潮流变之间的互动关系,有助于对中国现代思想发展历程作出深入理解。     

生命困顿与生命教育

生命教育起于20世纪60年代的美国,至80-90年代已成为世界许多国家推广的一种教育教学的门类。中国大陆从20世纪90年代开始正式推展生命教育,全国有许多高校开设了生命教育的课程。基于目前许多大学生已经出现的生命困顿的情况,在大学中开设生命教育课程、以及在各门课程中渗透生命教育的意识已刻不容缓。     

新文化运动前后柏格森思想传播与中国现代思想思潮的流变

新文化运动前后,柏格森被译介入中国现代哲学、思想领域,由此所掀起的"生命意识"和"生命直觉"思潮给中国现代思想的形成提供了跨文化语境的西方学术资源,在我国思想界、哲学界及文艺理论界都产生了重要影响。回顾梳理柏格森思想传播与中国现代思潮流变之间的互动关系,有助于对中国现代思想发展历程作出深入理解。     

论《淮南子》之“游”

＂游＂是《淮南子》生命哲学的核心概念之一,虽承袭于《庄子》,但其思想旨趣已有所变化,凸显出贵族化的政治追求与生命理想。＂真人＂等是《淮南子》之＂游＂的理想的生命主体,表现出将生命与政治一体化的思想倾向,这是《淮南子》生命哲学对《庄子》思想的扬弃。《淮南子》之＂游＂具有浓厚的神仙化意味,比《庄子》更能彰显出道家的生命信仰。