The contribution of Western fast food to fast-growing body mass in China

The westernization of Asian countries has led to the rapid expansion of Western-style fast-food restaurants, which are believed to be fueling an unprecedented rise in body mass in these countries. This study tests this belief using longitudinal data from China. Exploiting the opening of a Western-style fast-food restaurant in a particular community, we conduct a transition analysis to make a more convincing causal interpretation than the standard cross-sectional or fixed-effects approach. Considering several measures of fatness, we find no robust evidence of Western fast food having a substantial effect overall, but there is some indication of effect heterogeneity.     

Does obligational contracting lead to better performance? A comparison of global carmakers’ supply chain management approaches in Australia

Supply chain management (SCM) has been recognised as key to automobile manufacturers’ (‘buyers’) competitive advantage. However, the performance implication of two different approaches towards SCM, obligational contracting (OCR) vs. arm’s length contracting (ACR), remains inconclusive in the current literature. By focusing on examining how multiple global automobile manufacturers’ SCM practices result in different performance outcomes in the one-country setting of Australia, we are able to ascertain the direct impact of SCM approaches on buyers’ performance. We also provide detailed analysis on the specific influence of each distinguishing feature of the OCR/ACR approaches on different aspects of performance. Through a more nuanced investigation of the links between SCM approaches and automobile manufacturers’ performance at the firm level, this research contributes to a better understanding of the topic with managerially applicable insights.     

New Insights on US Aggregate and State Level Trade with the China Region

Aggregate trade data with breakdown into related and non‐related party components show that US multinational enterprises use different trading strategies in the China region relative to other countries. US trade with the China region in 2002–2007 is characterized by arm's‐length transactions. State‐level trade data show great variability in state engagement with the region through trade: exports to the region range from 1 to 28 percent of state exports. In addition, compared to exports to other countries, exports to the region are highly concentrated. At the extreme, for some states, 96–98 percent of exports to the region are computer and electronic products. Finally, gravity regressions show that state exports to Hong Kong are positively associated with the relative size of the Hong Kong‐born population in the states. There is no evidence that stricter labor regimes lead to lower state exports.     

一种半履带式单臂无线数据采集机器人的设计与实现

给出了一种带有机械手臂并能采集环境温度、湿度等信息的半履带式机器人的控制设计方案。其关键是硬件电路特别是多个多种电机的控制与构成,无线通信控制、软件设计等。文章详细给出了关键部分的设计与实现过程。     

新疆出口农产品显性比较优势分析

运用显示比较优势指数对新疆出口农产品的国际竞争力进行研究,分析结果显示新疆出口农产品竞争力正在逐渐减弱,在此基础上提出新疆出口农产品需要按照比较优势原理调整农业的产业结构、吸引国际投资加强国际间的交流与合作等对策建议。     

跨国公司无形资产转移定价税制研究

转移定价是跨国公司常用的一种避税手段,由此产生的国际税收问题引起各国的普遍关注。随着全球化大生产和知识经济的发展,跨国公司无形资产内部交易日渐频繁,相关税制的不完善使国家的税收权益存在巨大隐患。本文结合国内外无形资产转移定价税制特别是各种定价方法的介绍,评析了我国相关税制存在的问题并提出了自己的建议,希望对推进我国相关领域的税制改革有所助益。     

全液压装煤机双立爪机械臂的设计

为提高中小型煤矿巷道内的装载效率,设计了一种对称联动的双立爪机械臂作为全液压装煤机的上料装置。详细分析了整机工作方式、双立爪机械臂的工作原理及机械结构以及液压先导控制系统。样机试验表明,双立爪的耙取方式具有更大的工作范围和更高的装载效率,上料过程工作平稳,操作简便。     

机械臂竖向位移分析

平面关节型机械手是应用最广泛的机械手类型之一,它广泛应用于工业自动化生产领域,但其工作过程中精确定位和运行平稳性还存在着某些缺陷。文章针对其运动的特点,分析了在竖向荷载作用下,不同水平位置具有不同竖向位移量的性质,从而提出了在设计与控制机械手时应注意精确定位和运动引起振动的问题。     

DJK140型架桥机机臂制作工艺

文章详细介绍了DJK140型架桥机机臂的制作工艺方法。     

制动间隙自动调整臂的技术现状及其发展趋势

文章通过对汽车制动系统可靠性的一个关键零部件——制动间隙调整臂的介绍,分析了两种制动间隙自动调整臂的不同结构及相应的性能特点,强调了制动间隙自动调整臂的间隙设定应根据具体情况进行调整,提出了自动调整臂取代手动调整臂是必然趋势,而罗克威尔式自动调整臂也将取代瀚德式自动调整臂。