建筑节能成本探析

从建筑节能的角度阐述了建筑物自身的节能成本的构成、主要影响因素,介绍了建筑成本测算的基本方法和公式,提出了降低节能成本的主要措施,以供节能建筑实施时参考。     

根数错位致斗转星移——薛凤祚《历学会通》的历元换算

薛凤祚在《历学会通》中所给出的中西历元纪年出现了整体错位和局部混乱,由根数错位而致斗转星移。实难想像其天文和历算结果能够被观测所证实或验证,而况薛凤祚从来不作天文和天象观测。他的随意和著文之粗糙、混乱,使他耗费半生精力所作的西学引进、译介的成果黯然失色。这也许正是他被同时代人忽略,继而又被历史遗忘的根本原因之一。     

中国古代对颗粒物质特性的认知与应用

对颗粒物质特性的应用在人民生活中起着不可或缺的作用,在我国古代科技实用中更有着不可忽略的地位。以现代颗粒物质力学进展为基础,着重探究颗粒物质在生活实践中的一系列应用实例,借以考证中国古代科学对颗粒物质特性较深层次的认知,从多个角度分析、理解中国古代科学文化中的颗粒学部分的实用价值以及对今后继续探索颗粒物质领域的启示与推动作用。     

Testing bioequivalence for multiple formulations with power and sample size calculations

Bioequivalence (BE) trials play an important role in drug development for demonstrating the BE between test and reference formulations. The key statistical analysis for BE trials is the use of two one‐sided tests (TOST), which is equivalent to showing that the 90% confidence interval of the relative bioavailability is within a given range. Power and sample size calculations for the comparison between one test formulation and the reference formulation has been intensively investigated, and tables and software are available for practical use. From a statistical and logistical perspective, it might be more efficient to test more than one formulation in a single trial. However, approaches for controlling the overall type I error may be required. We propose a method called multiplicity‐adjusted TOST (MATOST) combining multiple comparison adjustment approaches, such as Hochberg's or Dunnett's method, with TOST. Because power and sample size calculations become more complex and are difficult to solve analytically, efficient simulation‐based procedures for this purpose have been developed and implemented in an R package. Some numerical results for a range of scenarios are presented in the paper. We show that given the same overall type I error and power, a BE crossover trial designed to test multiple formulations simultaneously only requires a small increase in the total sample size compared with a simple 2 × 2 crossover design evaluating only one test formulation. Hence, we conclude that testing multiple formulations in a single study is generally an efficient approach. The R package MATOST is available at https://sites.google.com/site/matostbe/ . Copyright © 2012 John Wiley & Sons, Ltd.     

面向现代航空制造需求的飞行器制造工程专业本科培养方案改革——基于南京航空航天大学实践的思考

现代航空制造技术的发展对本科生的知识结构和培养模式等方面提出了许多新的要求,最主要体现在对专业知识的系统性、课程内容的前沿性、培养模式的实践性等环节的提升。改革的思路沿着现代航空制造技术的发展主线,拓展飞行器制造工程专业的前沿知识框架,建立突出实践环节的模块化专业课程群,提出面向职业规划的套餐式选课,创新综合成绩绩点的评估方法。     

Digital navigation and the driving-machine: supervision,calculation, optimization,and recognition

ABSTRACT

In this paper, I explore the navigational implications of a possible driving world. In the last few years, autonomous vehicles (AVs) have garnered significant attention, with much of this scrutiny centered on the technical possibilities, legal restrictions, and utilitarian ethics of AVs. In this paper, I look at how AVs are radically transforming the nature of navigational decision-making. Research into the automation of industrial processes and aircraft fly-by-wire systems suggests that navigational supervision, by humans, will become a significant duty, recalibrating navigation itself. I draw out the implications of automation through three navigational practices of the ‘driving-machine’ I refer to as route-calculation, terrain-optimization, and object-recognition. Attending to these practices assists in the ongoing interrogation of the machinic rendering of automobile space.     

第六届中国民族研究西南论坛举行 区域·社会与文化

2013年6月17日,由中国社会科学院民族学与人类学研究所《民族研究》编辑部、西南民族大学、贵州民族大学联合举办的第六届中国民族研究西南论坛在贵州民族大学举行。     

竞争条件下企业生存能力的研究

从企业生物性和管理熵的角度分析了企业生存的三大能力 :基本生存能力、竞争力和应变力 ,形成企业能力的因素主要是企业的文化、学习和创新 ,以及企业的战略管理、经营管理     

基于作业成本法的高校生均培养成本管理体系构建

现阶段,随着高校经费来源渠道的多元化,生均培养成本成为政府、投资人、家长、学生及高校本身共同关注的一个焦点。如何正确核算高校教育成本,从而计算出生均培养成本成为目前亟待解决的一个问题。本文从高校应用作业成本法核算成本的必要性人手,构建了一系列的基于作业成本法管理的高校生均培养成本体系,从理论上进一步阐述了这种方法的优越性及可行性。     

关于劳动报酬在一次分配中所占比重问题的思考

分配率是衡量国民收入初次分配公平与否的重要指标。分配率中劳动者报酬总额占GDP比重越高,表明劳动者的工资性收入在国民收入初次分配中所得份额越大,社会分配越公平。但由于目前我国劳动者的报酬总额计算范围窄、我国在一次分配中分配差距大,使劳动报酬总额占GDP比重在计算和评价上有先天缺陷。本文解析我国劳动报酬占GDP比重计算中存在的问题,探讨对劳动报酬在一次分配中占比重的认识与评价标准以及正确的计算方法。