Wind-drag estimation in a traffic accident involving a motor scooter and a tractor-trailer

This case report describes a noncontact traffic accident involving a motor scooter and a tractor-trailer with a focus on the wind-drag effect. We used load cells to measure the drag force acting on a substantially similar motor scooter when a substantially similar tractor-trailer passes by it, taking into consideration various speeds of the tractor-trailer and distances between the two vehicles. A three-dimensional steady-state flow analysis was also performed by using the CFX program for computational fluid dynamics to examine the streamlines and the pressure distribution around the tractor-trailer at various speeds. From the experiment, for a separation distance of 1.0 m (3.28 ft) and a speed of 90 km/h (55.9 mph), the maximum resultant drag force is 124.5 N (28 lb); this constitutes a degree of force that could abruptly disrupt the stability in maneuvering by an operator who is unaware of the approaching tractor-trailer. In addition, a single equation that relates the tractor-trailer speed to the drag force that acts on the motor scooter was derived on the basis of the Reynolds number (Re) and the wind-drag coefficient (C(d)): C(d) = 1.298 × 10(-7) Re.     

A walk in to the cloud and cloudy it remains: The challenges and prospects of ‘processing’ and ‘transferring’ personal data

Cloud computing is an information technology technique that promises greater efficiency and reduced-cost to consumers, businesses and public institutions. However, to the extent it has brought better efficiency and minimal cost, the emergence of cloud computing has posed a significant regulatory challenge on the application of data protection rules particularly on the regime regulating cross-border data flow. The Data Protection Directive (DPD), which dates back to 1995, is at odds with some of the basic technological and business-related features of the cloud. As a result, it is claimed that the Directive hardly offers any help in using the legal bases to ‘process’ and ‘transfer’ data as well as to determine when a transfer to a third country occurs in cloud computing. Despite such assertions, the paper argues that the ECJ's Bodil Lindqvist decision can to a certain extent help to delineate circumstances where transfer should and should not occur in the cloud. Concomitantly, the paper demonstrates that controllers can still make the most of the available possibilities in justifying their ‘processing’ as well as ‘transferring’ of data to a third country in cloud arrangements. In doing so, the paper also portrays the challenges that arise down the road. All legal perspectives are largely drawn from EU level though examples are given from member states and other jurisdictions when relevant.     

基于GC-MS的血液气味识别模型

目的阐明人体血液与动物血液气味的差异性,并建立对两者进行分辨的仪器分析方法。方法采用气相色谱-质谱技术联合固相微萃取前处理方法测定了血液气味的化学组成;以血液气味色谱数据为基础,利用逐步判别分析法,以Matlab为计算工具,编写了血液气味识别模型的代码。结果分析鉴定了9种在人体血液与动物血液之间有显著差异性的化学成分,基于这些化合物建立了血液气味识别模型。结论人体血液与动物血液气味有显著差别;建立的血液气味识别模型能够正确区分人体血液与动物血液。     

单细胞分离荧光原位杂交法用于男女混合血DNA分型

目的采用单细胞分离荧光原位杂交法精确分离混合血样中男性和女性细胞并进行分型检验。方法收集男、女性血,按照男∶女为1∶5、1∶10、1∶20制备混合血样,加入0.075mol/L KCl 600μL,轻混、放置30min后加入150μL固定液离心留沉淀涂片,利用Vysis 30-161050试剂盒进行荧光原位杂交,并用PALM激光显微捕获系统分离出男、女性细胞,使用Identifiler试剂盒复合扩增并进行检测。结果捕获8个血细胞即可得到完整的DNA分型,且随着细胞数目的增多,检出率逐渐提高而等位基因丢失率逐渐降低。10个血细胞的检出率最高,为93.75%。5μL男性血液与本实验各比例女性血混合用本文方法检验均可获得男性分型。案例混合血斑经检验获得单一男性和女性分型。结论单细胞分离荧光原位杂交法可用于男女混合血样本中DNA分型检验。     

荧光免疫标记抗体法测定血痕ABO血型

目的探讨采用荧光免疫标记抗体法测定血痕血型的可行性和优点。方法根据抗原抗体特异性结合的原理,首先对抗A、抗B单克隆抗体进行荧光标记,然后使荧光标记抗体与相应抗原(血痕)在最佳条件下结合,最后荧光显微镜镜检,判定血痕的血型。结果采用该方法测定血痕的血型结果准确、灵敏度高、操作简单、检验时间短。结论该方法可以作为一种测定血痕血型的检验方法使用。     

人才分布及其流动的公共部门化现象探析——以云南省为个案的实证研究

本文是以云南省为个案,对人才分布及其流动的公共部门化现象的实证研究。人才作为第一资源,在市场经济条件下的配置,首要和主要的,应是面向经济、走向市场,进入经济实体。但目前我国情况并非如此,尤其是在欠发达地区,人才分布和流动的公共部门化是一种普遍的现象。这种现象如果不能有效改变,将对我国的经济发展与市场经济体制的巩固产生重大的消极影响。     

礼物流动模式的反向——评《礼物的流动》

《礼物的流动》的作者通过生动的社会生活交往,分析了黑龙江下岬村礼物交换原则、模式及其所反映出来的社会关系网络运行方式,发现单向送礼会导致受礼者权力和声望增加,这与以往绝大多数人类学家研究结果正好相反,可谓是礼物流动模式的反向。这对中国人类学研究具有非常重要的意义,填补了中国的礼物与乡村人际关系研究的空白。     

论输血及血液制品感染的侵权责任——基于日本法上的经验

在医学界,血液被称为"生命的源泉"。然而,近年来,随着临床用血和血液制品使用的大量增加,患者感染梅毒、肝炎、甚至艾滋病的案例已屡见不鲜。而上世纪末,我们的邻国日本也曾遭遇过同样的"血液之殇",日本司法实践在处理诸如"东大梅毒事件"、"药害肝炎事件"、"药害艾滋事件"上的成功经验会带给我国怎样的启示,以下将对日本法上血液的法律属性、医疗过失的判断标准、因果关系的证明以及医药产品责任主体的责任分配等进行分析,并结合我国《侵权责任法》相关规定,从法解释学的角度出发,针对我国司法现状,探讨日本法对我国在法律解释适用方面的借鉴意义。     

Assessing China's Cybersecurity Law

In November 2016, China passed its first Cybersecurity Law, aiming to strengthen cyberspace governance through a number of initiatives, including Internet operator security protection, personal information protection, special protection of critical information infrastructure, local storage of data, and security evaluation for data export. This Article discusses the major concepts and principles of the Cybersecurity Law. It also discusses the tensions and controversies inherent in the law. All in all, the Cybersecurity Law exhibits distinctive Chinese characteristics. It is premised on the concept of cyberspace sovereignty and emphasizes security over free flow of data and freedom of speech. It provides a basic legal framework for cyberspace governance in China, to be supplemented by implementing regulations in years to come.