基于CAE的薄壁壳体注塑分析

通过华塑CAE模流分析，在产品设计过程中预测可能出现的缺陷，对薄壁塑料壳体进行注塑分析，优化了薄壁壳体的结构强度，提高了塑件设计的质量和效率。     

西安通远坊天主教会建筑群的历史沿革及其艺术特征初探

通远坊天主教会建筑群位于西安市高陵县,是清代西北地区天主教总堂,现存的四座建筑天主堂、修女堂、圣心小修道院和育婴堂均建于清末民初,地域特征显著,建造做法肖似,作为一个整体清晰地反映出了当地的匠作传统。本文通过梳理其历史沿革,分析其艺术特征,希望将这一珍贵的内陆天主教文化遗产展示于世人面前。     

Lake management organizations in China

The paper analyses the range of lake management organizations (LMOs) established in China and proposes management recommendations for different lake types and contexts. Based on functions, regional coverage and sectoral focus, nine LMO patterns are identified, ranging from existing agency approaches in which there is no specific lake focus or institutional responsibility to comprehensive and powerful lake basin authorities. LMO development in China faces many challenges, including a preoccupation with organizational form rather than function and objectives, duplication with existing agency functions, and insufficient lake basin management and trans-jurisdictional coordination. We therefore propose that LMOs should be tailored to specific situations and problems, drawing distinctions between plateau, urban, plain, inland and wetland lakes as well as other contexts.     

日本中华街的发展演变及其认知模式研究

横滨与长崎的"中华街"及神户的"南京町"是日本颇具盛名的三大唐人街,不仅具有悠久的历史,而且拥有巨大的经营资产,占据着相当重要的商业地位。本文通过实地调查及对游客问卷的分析、研究,了解到日本人对"中华街"的认知在于对建筑表现形态、设施内容特色、民俗经营形式、传统生活氛围的认识和理解,并且随着认知程度及特征要素分布密度的变化,也影响着日本人对"中华街"这一异文化环境范围的认识。     

吉林省社会经济发展代价探析——以十二五期间经济发展为例

随着改革开放的深入,尤其是在振兴东北老工业基地政策提出后,吉林省的经济得到巨大的发展。在进入十二五后,吉林的经济与社会进入了发展的快车道。吉林经济规模不断扩大,人均可支配收入增加,经济结构不断改善。但是在飞速发展的背后,经济和社会也付出了巨大的代价,环境破坏,资源开采,人们收入差距扩大等等问题给吉林的发展增加了巨大的包袱。以十二五期间为例,对吉林的经济社会的发展代价进行研究和分析。     

China’s electric vehicle subsidy scheme: Rationale and impacts

To promote the market penetration of electric vehicles (EV), China launched the Electric Vehicle Subsidy Scheme (EVSS) in Jan 2009, followed by an update in Sep 2013, which we named phase I and phase II EVSS, respectively. In this paper, we presented the rationale of China’s two-phase EVSS and estimated their impacts on EV market penetration, with a focus on the ownership cost analysis of battery electric passenger vehicles (BEPV). Based on the ownership cost comparison of five defining BEPV models and their counterpart conventional passenger vehicle (CPV) models, we concluded that in the short term, especially before 2015, China’s EVSS is very necessary for BEPVs to be cost competitive compared with CPVs. The transition from phase I to phase II EVSS will generally reduce subsidy intensity, thus resulting in temporary rise of BEPV ownership cost. However, with the decrease of BEPV manufacturing cost, the ownership cost of BEPV is projected to decrease despite of the phase-out mechanism under phase II EVSS. In the mid term of around 2015–2020, BEPV could become less or not reliant on subsidy to maintain cost competitiveness. However, given the performance disadvantages of BEPV, especially the limited electric range, China’s current EVSS is not sufficient for the BEPV market to take off. Technology improvement associated with battery cost reduction has to play an essential role in starting up China’s BEPV market.     

China food safety hits the “gutter”

Gutter oil, or illicit cooking oil that has been recycled from waste oil collected from restaurant fryers, drains, grease traps and slaughterhouse waste from “table to table” has emerged as a serious food-safety issue in China and exposed the shortcomings of China's food-safety assurance systems. This paper investigates the industrial chain of production and sale of gutter oil in China. Moreover, we discuss the impediments to and the government countermeasures being implemented in supervising the use of gutter oil in China. The positive lessons in monitoring use of gutter oil in China may help improve food-safety management throughout China and other developing countries.     

北方地区绿色建筑行动纲要

我国北方地区城市建筑约占全国建筑总量的26%,但建筑能耗却占到全国的40%~50%,因此,北方地区推行绿色建筑对节能减排意义重大。本文从选址与节地、供热计量、绿色建筑激励政策等十个方面阐述北方地区绿色建筑行动纲要。     

中国农村居民口粮消费研究

中国粮食安全尤其是口粮安全问题引起人们广泛的关注。为研究农村居民口粮消费与经济因素的关系,探讨家庭收入和价格变化对中国农村居民口粮消费的影响,以及价格变化对口粮间的消费替代研究,本文对全国2003—2009年的省级农村消费数据进行了整理,采用非参数估计方法,确定AIDS消费模型的类型,并得到了口粮消费的自价格弹性、互价格弹性、支出弹性等。结果发现,随着收入的上涨,居民倾向消费更多的是水稻;小麦和水稻之间有较强的替代性。农村居民收入的增长,将推动口粮消费的变化,尤其促进水稻消费增长,因此文章最后提出了,优先重视发展水稻生产的建议。     

What is the future of solar energy? Economic and policy barriers

The most important characteristics and limitations of solar energy were reviewed in this study. The analysis of different aspects indicated that the most important global challenges of solar energy development were climatic challenges, technical constraints, and unwillingness to make investments. After describing current conditions and predicting the future of solar energy, this study analyzed the policies formulated by developed countries to develop this from of energy. Accordingly, China has gotten ahead of other countries in this industry due to the technological production of solar panels and governmental supports. Finally, the economic estimation of solar energy was presented by dealing with the economic barriers to this form of energy in developed countries. According to the significant growth in the reduction of solar energy electricity production cost, this source of energy can be used as a major source in the future. It was then recommended to use a hybrid of solar energy with other sources such as wind to reduce the costs.