Portable high‐resolution automated 3D imaging for footwear and tire impression capture

The forensic science community raised the need for improved evidence recognition, collection, and visualization analytical instrumentation for field and laboratory use. While the 3D optical techniques for imaging static objects have been extensively studied, there is still a major gap between current knowledge and collecting high‐quality footwear and tire impression evidence. Among optical means for 3D imaging, digital fringe projection (DFP) techniques reconstruct 3D shape from phase information, achieving camera‐pixel spatial resolution. This paper presents a high‐resolution 3D imaging technology using DFP techniques dedicated to footwear and tire impression capture. We developed fully automated software algorithms and a graphical user interface (GUI) that allow anyone without training to operate for high‐quality 3D data capture. We performed accuracy evaluations and comparisons comparing with the commercial high‐end 3D scanner and carried out qualitative tests for various impressions comparing with the current practices. Overall, our technology achieves similar levels of accuracy and resolution with a high‐end commercially available 3D scanner, while having the merits of being (1) more affordable; (2) much easier to operate; and (3) more robust. Compared with the current practice of casting, our technology demonstrates its superiority because it (1) is non‐destructive; (2) collects more evidence detail than casts, especially when an impression is fragile; (3) requires less time and money to collect each piece of evidence; and (4) results in a digital file that can easily be shared with other examiners.     

备战打仗中的国际人道法规则运用

国际人道法的基本原则之一是区分对待战斗员和平民,以便在武装冲突中有效地对战争受难者进行保护,平衡"军事必要"与"人道需求"这一矛盾。从实践经验上看,我军在战争中往往守法做的比较好,而在对付敌人违法作战方面准备不足。在未来军事斗争中应利用国际人道法的相关知识,做到既严格遵守又灵活运用。具体做法包括:将遵守国际人道规则列入部队训练和演习内容;运用国际人道法合理进行目标选择与打击;做到正确、灵活地对待和使用保护性标志;灵活处置国际人道法的守势反用等。     

浅谈旅游学的几个基础问题

按照旅游学的理论以及构成来讲,旅游学是一门交叉性较强的科学;按照其作用来讲,旅游学以软科学的形式存在。旅游学以旅游系统为研究对象,表现出综合性、交叉性等特点。探讨旅游学的有关基础理论问题,有助于学科的进步和发展。     

Hidden Income and Occupational Background: evidence from Guangzhou

Using a unique dataset based on a survey conducted by the Guangzhou Land Resources and Housing Administrative Bureau from November 2009 to January 2010, this article examines the sources and distribution of the hidden income of residents from different occupational backgrounds, taking into consideration their explicit income and other socio-economic characteristics. The results show that government officials not only had the highest but also the most stable hidden income, followed by employees in state-owned enterprises and employees in colleges or research institutions. Among government officials, those holding higher-level positions possessed more hidden income than those in lower-level positions. These findings have implications for China's labour market, taxation and resource allocation, and need to be taken into consideration in future economic and political policy designs and implementations.     

连接未来:大学的应有之义

大学如何连接一个美好的未来给他们的国家以及他们的学子,这是大学的应有之义.但是目前我国的大学过于关注当下,没有放眼未来.这种状况不仅影响培养质量,而且也是对大学社会责任的弱化.本文指出连接未来应是大学存在的价值所在,要连接未来首先需要植根于人的存在的意义.文中还指出知识的逻辑在改变,教育方式也应该相应地改变.为帮助学生建立复杂问题的视野和善于关联(创新能力的关键),本文提出了几种关联的方式.     

大枣现代研究开发进展与展望

大枣在《神农本草经》属上品,味甘平。可安中,养脾,助十二经,平胃气,通九窍,和百药。近年来,对大枣的研究范围广泛,成果卓著。本文就近10年大枣的品种资源、化学成分、药理作用的主要研究进展进行综述,并收集总结了近年来以大枣为主要原料的药品、保健品、食品的研究开发情况等,为相关研究提供近一步参考。     

浅析企业裁员管理

当前的经济形势可能增加劳动关系的不稳定因素,企业裁员的风险加大。实践中企业裁员有经济性裁员、优化性裁员、结构性裁员、协商性裁员等方式。但对企业而言,裁员绝不仅仅就是降低用工成本,也可能带来人力资源的损失、市场份额的减少、甚至是资本市场的波动。因此企业在作出裁员决策时应当从必要性、合法性、人性化三方面综合考虑。     

清末民初浙江监狱改良与日本

本文为中国近代转型时期以日本为媒介移植西方法律制度的个案事例研究。着重关注的是清末官绅对日考察,不同于已有较多成果的清末留日研究。据《申报》记载,包括浙江在内的十省于1906年联合派遣正佐官员五十名赴日考察监狱。该史料已为相关研究者所关注,但这些"调查日本监狱员"在日考察的实际状况和回国后的活动至今不为人知。在梳理浙江省派员名单,挖掘其在日活动史料基础上,进一步追踪其中三人回国后在浙江省监狱改良中作出的贡献。     

协商民主理论视野下和谐民族关系的构建

独具中国特色的协商民主制度为我国构建和谐民族关系奠定了基础。协商民主能够在实现各民族有序参与自治权利、利益平衡、增强政治认同方面,在促进各民族文化共存、包容差异、处理民族宗教事务方面发挥重要作用。构建和谐的民族关系,应注重发挥政协和基层的协商民主作用,注重发挥网络协商平台的作用。     

中国和东盟互联互通的意义、成就及前景——纪念中国-东盟建立对话关系20周年

基础设施的互联互通，是深化中国与东盟关系、推进双方合作的重要基础和前提。今年是中国和东盟建立对话关系20周年，中国和东南亚基础设施的互联互通为双方未来关系的进一步发展搭建起更加便捷的桥梁。从这一角度出发，本文主要阐述中国与东南亚基础设施互联互通的意义，介绍中国与东南亚基础设施互联互通建设取得的成就，探讨今后的发展前景。