搜索引擎作为信息中介的侵权责任研究

从目前国内司法实践和研究文献看,人们对搜索引擎侵权责任的认识仍然存在较大分歧。造成这种分歧的主要原因是对搜索引擎商是否应负有注意义务,以及该注意义务应到何种程度这一问题的不同理解。因此提出分析搜索引擎的侵权责任,应以搜索引擎的技术特点和业务原理为基础,考虑其作为“信息中介”的角色属性;同时认为搜索引擎商负有注意义务,但该注意义务应当限定在较低的程度内。     

基于Hadoop的网络爬虫技术研究

网络爬虫一般从一个起始网页开始,读取网页的内容和网页中的链接,依次循环下去,直到找到此网页所有的链接网页为止;当要爬取的数据量比较大时,传统的技术存在一定弊端,而Hadoop开源云计算框架在数据采集方面会有一定的优势。在介绍Hadoop云计算框架的基础上,本文阐述网络爬虫的原理,并实现基于Hadoop的网络爬虫。     

对置活塞式四冲程自由活塞发电机仿真研究

针对现有结构的四冲程自由活塞发电机在工作过程中存在的严重机械振动问题,提出了一种新型的对置活塞式结构四冲程自由活塞发电机.在分析系统结构组成和工作原理的基础上,分别从热力学和动力学建立对置活塞式四冲程自由活塞发电机的仿真模型,并进行系统动态特性的仿真分析.研究结果表明:该四冲程自由活塞发电机具有机械振动小及功率密度高的特点,比单活塞式结构的四冲程自由活塞发电机更适合作为未来混合动力电动汽车的发电装置.     

Data Available for Evaluating the Risks and Benefits of MTBE and Ethanol as Alternative Fuel Oxygenates

The wide-scale use of methyl tertiary butyl ether (MTBE) in gasoline has resulted in substantial public controversy and action to ban or control its use due to perceived impacts on water quality. Because oxygenates are still required under federal law, considerable research has focused on ethanol as a substitute for MTBE. In this article, we summarize the currently available literature on the air and water quality risks and benefits of MTBE versus ethanol as alternative fuel oxygenates. We find that MTBE-fuel blends are likely to have substantial air quality benefits; ethanol-fuel blends appear to offer similar benefits, but these may be at least partially negated because of ethanol's propensity to increase emissions and ambient concentrations of some air contaminants. Releases of gasoline containing either MTBE or ethanol could have an impact on some drinking water sources, although the impacts associated with MTBE tend to relate to aesthetics (i.e., taste and odor), whereas the impacts associated with ethanol generally relate to health risk (i.e., greater exposure to gasoline constituents such as benzene). It is likely that these water quality impacts will be outweighed by the air quality benefits associated with MTBE and perhaps ethanol use, which affect a much larger population. A lack of data on environmental exposures and associated health impacts hinders the completion of a comprehensive quantitative risk-benefit analysis, and the available air and water quality data should be evaluated in a broader risk-management context, which considers the potential life-cycle impacts, costs, and feasibility associated with alternative fuel oxygenates.     

基于VECM的汽柴油价格不对称性分析

原油作为成品油的主要原材料,原油价格的变化会引起成品油价格的相应变化,从成品油价格关于原油价格变化的反应可以了解成品油定价的合理性.本文利用一个不对称的向量误差修正模型(Vector Error CorrectionModel,VECM),检验了我国汽柴油关于原油成本变化不对称性问题,检验结果表明,我国汽柴油对原油成本上涨的反应快,但持续的时间短;对原油成本下降的反应慢,但持续的时间长.研究结果对我国石油定价机制的改革和企业实施油价风险管理有参考价值.     

搜索引擎引发的网络隐私权保护研究

搜索引擎作为大数据发展下的时代产物,满足了人们对数据信息的渴望,但同时引发了人们对自身网络隐私泄露的担忧。通过分析我国搜索引擎对用户隐私权保护的现状,发现我国搜索引擎对用户隐私权的保护仍然面临着诸多困境,因此在深刻分析美国行业自律模式、欧盟立法规制模式以及荷兰自由港模式的基础上,以期从国家层面、社会层面、公民层面三个方面来探索我国网络隐私权保护的有效路径。     

Spatial Price Competition: A Semiparametric Approach

We investigate the nature of price competition among firms that produce differentiated products and compete in markets that are limited in extent. We propose an instrumental variables series estimator for the matrix of cross price response coefficients, demonstrate that our estimator is consistent, and derive its asymptotic distribution. Our semiparametric approach allows us to discriminate among models of global competition, in which all products compete with all others, and local competition, in which products compete only with their neighbors. We apply our semiparametric estimator to data from U.S. wholesale gasoline markets and find that, in this market, competition is highly localized.     

车用柴油机冷起动过程的特征研究

本文通过日产４Ｄ１０５－５柴油机各气缸压力的瞬态采集,较详细研究了车用柴油机冷起动过程,分析了柴油机燃烧不稳定定对冷起动过程的影响。结果表明,柴油机在低浊较大证尤其在边界状态下各气缸着火 状态有较大差异,部分气缸出现失火 ,造冷却过过程不确定,从而引柴油机冷却起困难。     

“打抱不平”的人肉搜索——相关网络暴力问题探析

“人肉搜索”所引发的网络暴力问题日渐成为社会公众广泛关注的社会问题,运用结构功能主义“失范理论”对该问题进行了简要分析,探讨了诱发网络暴力的社会结构性因素及对策建议。     

网络不雅内容治理中搜索引擎法律责任探讨

互联网内容生态治理的目标之一是对不雅内容的法律监管,而搜索引擎服务客观上为不雅内容扩散提供了便捷条件,构成淫秽色情网站营利链条中的重要环节。司法实践表明搜索引擎所承担的私法范畴的侵权责任畸轻,客观上强化了“搜索引擎对第三方内容不承担责任”的豁免意识。淫秽色情内容的扩散与治理属公法责任,由于搜索引擎“链接”具有“传播”或“出版”的属性或功能,互联网行业自律规范明确禁止为不雅内容提供服务,刑事司法解释以及有关行政规章均明确设立了行政责任或刑事责任。鉴于搜索引擎所承担的过程性、专属性一般安全保障义务,链接儿童色情内容的应施加以刑事责任为主的严格责任,未尽“明知”注意义务的须加重承担刑事责任、行政责任,“未必的故意”帮助行为具有可罚性。