“约定”法在中职班主任德育教育工作中的运用

近几年来,随着教育体制的持续改革与创新,中职班主任在开展德育教育工作时,必须要重视教育模式与手段的多样化改革与创新。中职班主任要结合当前德育教育的现状与特点,以学生为中心与重点,不断优化德育教育方式与形式。其中约定法是一种有效的德育教育方法。本文主要对中职班主任德育教育工作中约定法应用的策略与方法进行研究,不断培养中职生优秀的综合素养,养成良好地生活习惯、学习习惯与优秀的言行举止,促进学生身心将康更好发展。     

Modeling the effects of vehicle emission taxes on residential location choices of different-income households

Taxing vehicle emissions has been advocated as an effective measure to solve the smog and haze problems in China. This paper investigates the effects of vehicle emission taxes on residential segregation in a model of a monocentric city with two income classes. The proposed model explicitly considers the interactions among three types of stakeholders, namely the authority, property developers and heterogeneous households in terms of income level. The properties of the proposed model are analytically explored and the optimal vehicle emission taxes that maximize the social welfare of the urban system are determined. The conditions under which either the rich or the poor lives in the urban central area while the other class in the suburb are identified. The findings show that (i) a high emission tax can drive the low-income households to migrate from suburbs to urban central areas, and the high-income households to migrate from urban central areas to suburbs; (ii) the implementation of the vehicle emission taxes can effectively reduce the air pollution cost and increase the total social welfare of the urban system; and (iii) the emission tax policy may incur inequity issue in terms of change in utility levels of different income classes before and after introducing the vehicle emission taxes.     

直接式胎压监测系统设计简述

本文针对满足国标GB 26149—2017的直接式胎压监测系统,对工作原理、主要功能、技术实现方案、标定测试等进行了全方位的介绍。     

高等级公路平纵线形设计

介绍高等级公路平面线形设计、纵断面线形设计，以及平、纵面线形的组合设计。     

方形自升式平台稳性计算

以上海中远船务工程有限公司研发的一型正方形自升式生产平台为依托,依照美国船级社MODU规范的要求,分析了平台的完整稳性、破损稳性和剩余稳性,总结了该类平台稳性分析的方法及过程.对方形自升式平台稳性计算具有一定的参考意义.     

职业学校电子专业人才培养模式的探讨与研究

随着电子技术的飞速发展，传统的职业学校电子专业办学模式单一、专业课程严重滞后，毕业生的专业技能达不到企业的需求，培养的电子专业毕业生不能满足市场需求。在现代制造业形势下，传统的职业学校电子专业教育模式已明显不能适应社会的发展，这就给职业教育的办学模式提出更高的要求和带来严峻的挑战。因此“岗位定向、专班培养”的校企合作现代职业教育模式是职业教育改革的趋势，是适合现代企业发展的职业教育办学模式，对促进学生培养和职业教育的可持续发展具有十分重要的意义。     

Specification issues in a generalised random parameters attribute nonattendance model

An extensive literature has recognised that when travel choices are made, only a subset of the attributes of the choice alternatives may be considered or attended to by each decision maker. Numerous econometric approaches have been employed to identify attribute nonattendance (ANA), with the most prevalent in the literature being an adaptation of the latent class model. However, the two latent class structures so far employed either incur a potentially very high parametric cost, or rely on an assumption that nonattendance is independent across all attributes. We present a generalised model that allows for an arbitrary degree of correlation of nonattendance across attributes. In the presented stated choice study investigating short haul flights, this generalised model outperforms the existing approaches. Like two recent papers, the model handles both ANA and preference heterogeneity by combining continuously distributed random parameters with latent classes. However, we present recommendations regarding a number of identification issues stemming from the combination of these two forms of random parameters not covered in those papers. Further, covariates can be introduced into our generalised model to allow insights to be gained into ANA behaviour. We investigate stated ANA as a covariate, and find inferred ANA rates to be more aligned with stated ANA responses than alternative methods.     

���ڻ����ͱ�ȼ������ÿͻ��г�DOC����ģ��

为了定量反映民机"座级"、"设计航程"与直接运行成本之间的内在关联性,利用NASA 97方法为各种样本机型在不同的长短结合的"飞行航距"下生成直接运行成本样本点,确定"型别等级"民机市场直接运行成本与"飞行航距"的函数形式并计算回归系数的估计量,以此分析"座级"、"设计航程"与各个回归系数估计量之间的函数关系,给出"型别等级"民机市场DOC的计算模型函数,通过OLS方法估算模型的回归系数.通过与NASA 97方法对4种样本机型产生的10个样本点的比较,发现模型计算的最大相对误差为0.086,因此模型可行.     

基于等级评定的客车座椅布置智能设计方法

针对客车等级评定的行业标准，提出应用UG／OPEN GRIP二次开发平台进行客车车厢内座椅智能布置设计的思路，并进行具体应用。     

社会主义和谐社会构建中的矛盾及其政治调控

社会主义和谐社会理论,是党着眼于中国现实、历史条件、时代要求创新而形成的社会建设理论,致力于各种社会矛盾的政治整合,避免社会矛盾的解决以社会阶级对抗的方式进行,发展了马克思主义矛盾论,从理论上看是对阶级斗争理论的双重政治终结,从现实上看,完成了党从夺取政权的革命党到社会建设的执政党的真正的政治转变,调整政治关系,构建和谐社会成为政治控制的主要选择。