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.     

文化安全视域下高校宗教文化热的反思

从文化安全视域下，高校宗教文化热对高校马克思主义意识形态的稳固、高校科学精神的培养以及大学生对民族文化的认同存有负面影响。本文认为，高校党政领导和各职能部门应准确理解和把握党和政府的宗教理论和政策，从文化战略高度，加大科学无神论的研究和宣讲力度，弘扬优秀传统文化，以维护高校文化安全。     

谨防诉讼调解过度化

鉴于诉讼调解在彻底解决纠纷、实现案结事了方面确实具有判决难以比拟的优势,诉讼调解在司法政策上得到支持,在司法实践中受到欢迎,具有足够的正当性与合理性。但是,我国原有制度已经为法官优先选择调解提供了充分的激励,在此基础上再大力强调调解,采取多种措施激励法官调解,有可能会造成诉讼调解过度化乃至强制化的局面。这种局面不但会损害当事人的合法权益,影响司法权威,阻碍我国的法制建设,也不利于审判效率的提高。因此,必须谨防诉讼调解过度化现象的产生。     

耕地集约化租赁的纠纷审视与司法应对

耕地集约化租赁虽对实现农业的转型升级具有积极作用,但也出现了一些损害农村土地权益的负面现象,并逐渐演化为诉讼纠纷。其所凸显出的发展与有序的问题不容忽视,需要司法实践积极回应,并进行利益平衡上的思考。     

观念认同与地区秩序建构——兼谈中国新安全观在建构东亚秩序中的作用

观念认同对地区秩序建构有着重要意义。观念认同建构行为体的身份和利益,进而改变或影响行为体的行为,在地区秩序建构中起到了"路线图"和"粘合剂"的作用。地区行为体之间的观念认同决定了它们互动的形式和态度,界定了地区秩序的自我属性,框定了战后地区秩序的建构原则,因而成为建构地区秩序的重要因素之一。中国首倡的新安全观与东盟主张的地区规范产生了积极互动,推动东亚观念结构由洛克文化向康德文化演进。     

美国外交关系委员会对美国外交的影响

美国外交关系委员会作为美国历史最悠久、最重要的外交思想库,其政策设想一贯秉持服务于美国政府、美国国家利益的目的,并与政府建立了长期合作关系。本文拟简要梳理美国外交关系委员会的历史流变,考察外交关系委员会影响美国外交的方式,探讨外交关系委员会对美国外交的影响。     

Digital Wiretap Warrant: Improving the security of ETSI Lawful Interception

Lawful Interception (LI) of data communications is an essential tool for Law Enforcement Agencies (LEA) in order to investigate criminal activities carried out or coordinated by means of Internet. However, the ability to secretly monitor the activities of citizens also has a great impact on civil rights. Therefore, democratic societies must prevent abuse and ensure that LI is only employed in specific cases with justifiable grounds or a probable cause. Nowadays, in many countries each interception must be authorized by a wiretap warrant, usually issued by a judge. However, this wiretap warrant is merely an administrative document that should be checked by the network or service operator before enabling the monitoring of its customers, whose communications are later handed over to a LEA in plaintext. This paper proposes the idea of employing a Digital Wiretap Warrant (DWW), which further protects the civil liberties, security and privacy of LI by ensuring that monitoring devices can only be enabled with a valid DWW, and by encrypting the captured data so only the authorized LEA is able to decrypt those communications. Moreover, in the proposed DWW framework all digital evidence is securely time-stamped and signed, thus guaranteeing that it has not been tampered with, and that a proper chain of custody has been met. In particular this paper proposes how to apply the DWW concept to the lawful interception framework defined by the ETSI LI Technical Committee, and evaluates how the additional security mechanisms could impact the performance and storage costs of a LI platform.     

世界大变局与中美日三国战略选择

在世界大变局中,战后国际格局重大变化的主要标志是“世界老二”易位。苏联、日本皆不例外;21世纪以来欧盟也由盛转衰。未来国际格局可能有三种前景:1.中美两极对抗体制;2.中美竞争合作的“两极多元体制”;3.世界各大力量多元并存,构建多元一体的人类命运共同体。这要看世界潮流是走向和平多边主义还是暴力多边主义。中国实现伟大复兴后的战略选择是“济弱扶倾”,为世界可持续发展与可持续安全做贡献。日本面临的战略选择是:继续在《日本国宪法》下走和平发展道路,还是修改宪法,成为“能战国家”的一员,加入暴力强权的多边主义?坚持开放的地区主义与国际协调,还是搞排他经济集团,远交近攻,以中国为竞争对手?利用中美对立从中渔利,还是促进中美协调而避免在中美之间“选边站”?妥善处理中日两国围绕钓鱼岛归属认知争议和台湾问题,还是重走历史老路?囿于冷战思维和传统权力政治的现实主义决策逻辑,同中国搞战略对抗,还是树立共同、综合、合作、可持续安全的新安全观,与中国加强合作?这些战略选择将关乎未来30年的中日关系。     

The Politics of Security and Technology in Switzerland

Technologies play crucial roles in security politics. In a recent push to understand the dynamic interplay between technologies and politics, IR scholars increasingly draw on reflexive research traditions. The aim is to understand the social and political practices that influence the shape, design and use of security technologies instead of assuming that technologies have linear, independent effects on politics. This SPSR debate draws on this new perspective and applies it to topics salient in Swiss public debate. Its contributions analyze how cybersecurity, predictive policing, drones, artificial intelligence, targeted sanctions, urban design and spyware are deliberated, negotiated, programmed and critiqued in Switzerland. They chart different analytical avenues with which to address the recursive and non‐linear relationship between security politics and technologies, and, by familiarizing readers with the tenets and diversity of reflexive political science research, seek to give that longstanding scholarly research tradition better visibility in the Swiss political science community.     

拜登政府的美日印澳四方安全合作构想述评

2017年美日印澳四方安全对话重启以来,马拉巴尔2020军演是美日印澳四国首次举行的联合军演。马拉巴尔2020军演折射出美日印澳四国针对中国的意愿及合作新进展。美日印澳四方安全合作是美国印太战略的基础和牵制中国崛起的重要机制,在近几年持续获得进展。美日印澳四国在安全领域加强合作,对四国与中国双边关系产生深远影响。马拉巴尔2020军演后,原本紧张的中印及中澳关系继续恶化。美国进一步推动与中国的竞争。美日印澳四国不但在安全领域针对中国,还营造不利于中国的国际舆论。拜登上台后,美日印澳四方安全合作继续强化。拜登比特朗普更重视与盟友合作,借由与日印澳三国磋商推动美日印澳四方安全合作机制化和常态化并走向准军事联盟。美日印澳四国明确表示不会在政治与安全领域停止针对中国,但是在经贸领域基于自身利益考量将改善对华关系。美日印澳四方安全合作升级对中国安全环境及国家利益构成严重威胁。拜登政府正在强化针对中国的印太地区多边安全架构。美国试图在外交层面让中国陷入孤立态势,在安全层面对中国形成战略包围。拜登政府的美日印澳四方安全合作构想将让中国面临更加复杂的外交局面,更加险恶的安全态势。