针对国际民用航空实施非法干扰行为不仅威胁到整个国际民用航空的安全和有序发展,同时也危及世界的和平与安全。在实践中,非法干扰行为、恐怖主义活动和不轨旅客行为是既有联系又有区别的概念。面对非法干扰行为对旅客、地水面第三方以及航空业带来的人身和财产损害,国际社会制定了一系列条约,通过了一系列决议予以规制。鉴于国家在打击针对国际民用航空非法干扰行为中所承担的国际义务和应发挥的作用,国家责任是一个不可回避的话题。

Unlawful interference against the international civil aviation threatens not only the safety and orderly devel-opment of international aviation industry, but also the peace and security of the whole world. In reality, the concepts of unlawful interference, terrorist activity and the unruly passenger distinguish from each other, although sharing something in common. To combat with the unlawful interference against the international civil aviation which results in personal injuries and property damages of the passengers, the third parties on the surface as well as the aviation in-dustry, the international community, under the auspices of various international organizations, particularly of ICAO, convened a number of treaties as well as adopted a series of resolutions for this purpose. By viewing the international obligations committed by contracting states under the international conventions and the custom international law, the state responsibility is an unavoidable issue when

分析非法行医现状、原因、危害及查处情况,为深入开展打击非法行医制定对策提供依据。方法:根据历年打击非法行医资料进行研究。结果:随着打击非法行医工作的深入开展,非法行医逐年减少,但引起非法行医根本成因及现象仍然存在,严重干扰医疗卫生秩序。结论:打击非法行医除完善法律法规,需政府组织卫计生、工商、公安、药监等部门共同参与,采取综合对策,建立长效治理机制,才能从源头上遏制非法行医。

Objective:To analyze status, reasons and hazars of illegal medical practice, serving as basis for fur-ther crackdow of illegal medical practice. Method:research into documents of cracking down illegal medical practice. Result:With the further implementation of cracking down of illegal medical practice, the illegal medical practice is on the decline year by year, but the underlying causes and phenomenon still exist, which interferes with the medicare or-der. Conclusion:in addition to laws and regulations enforcement, joint efforts of relevant authorities including public health, industrial and commercial administraiotn, public security, and drug administration are required to take com-prehensive measures and establish long-term management mechanism. Only in this way can illegal medical practice be rooted out.

一个时期以来,非法广播电视台的涌现,严重干扰了广播电视正常播出秩序。如何加大打击非法广播电视台的管理工作,是目前一项重要的任务。非法广播电视案件存在着发现难、定位难、取证难、查处难问题。打击非法广播电视台应从建立长效工作机制、落实责任、坚持"属地监管"、发挥技术监测监管等方面着手,加快制定我国《广播电视法》、加大打击非法广播电视台违法行为的宣传、加强对打击非法广播电视台工作的组织领导和对非法广播电视台设置规律特点的研究。

The illegal TV stations appear , which interfere normal radio and television broadcasting since a period. It is an impor-tant task how to crack down on management of illegal radio and television stations. There exist some problems that we have some diffi-culty in finding illegal radio and television stations, locating their positions, getting evidence, and investigating the cases. The paper mainly states that we should do the following to guarantee normal TV and radio broadcasting: establishing long-term mechanism, imple-menting the responsibility, adhering to the “territorial supervision”, strengthening monitoring supervision. Meanwhile , it is crucial to ac-celerate the development of China ’s “Radio and Television Law,” to increase publicity against illegal broadcast, strengthen organization-al leadership against illegal radio and television work and study on illegal broadcast characteristics.

目前,针对线程信息流的验证研究主要着重于时间信道.然而,由于线程程序中线程控制原语存在函数副作用,对此类原语的不恰当调用亦可引起非法信息流,有意或无意地破坏程序的非干扰属性.因此,提出以验证线程程序信息流为目的依赖逻辑,其可表达线程程序的数据流、控制流以及线程控制函数的副作用,推理程序变量和线程标识符之间的依赖关系,进而判定是否存在高机密性变量对低机密性变量的干扰.

Existing work on the verification of information flow in threads mainly focuses on timing channels. However, this paper shows that system calls, such as‘fork’ or‘join’ with side effects, can also be used to create covert channels intentionally or accidentally. The study results in a dependency logic for verifying information flow in multi-threaded programs where improper calls over thread controlling primitives with side effects could incur illegal information flow. The logic can express the data flow, control flow and the side effects of thread-controlling system calls, and can reason about the dependency relationship among variables and thread identities, to determine whether secret variables interfere with public ones in multi-threaded programs.

针对WSNs节点间通信易受非法节点窃听的问题，提出了鲁棒波束成形噪声发送策略来提高节点间的可达安全速率。假设协作干扰节点只知道其到窃听节点的部分信道状态信息，在最差信道条件下通过优化协作干扰节点的噪声输入协方差矩阵来最大化系统的可达安全速率。为求解此非凸的最大最小化问题，首先通过数学等价转化将该非凸问题转化为半定规划问题，然后设计了一维搜索算法来计算节点间的最优可达安全速率。最后，通过仿真验证了所提算法的有效性。

Aiming at the problem that wireless communication between nodes is vulnerable to eavesdrop-ping in WSNs ,robust beamforming has been designed to realize noise transmitting strategy in the coopera-tive jamming node ,which can improve the achievable secrecy rate .Under the worst channel case ,the a-chievable secrecy rate is maximized by optimizing the noise input covariance matrix of the cooperative jam-ming node .To tackle this challenging non-convex max-min optimization issue ,we have first transferred this non-convex optimization problem into an equivalent semi-definite programming problem ,and then pro-posed a one-dimensional algorithm to calculate the optimal achievable secrecy rate .Simulation results veri-fy the effectiveness of the proposed approach .