Changing Nature of Copyright Law: Impact on Information Access (ความเปลี่ยนแปลงในกฎหมายลิขสิทธิ์: ผลกระทบต่อการเข้าถึงสารนิเทศ)
ในขณะทกฎหมายลขสทธไดใหสทธเดดขาดแกผทรงสทธเพอปองกนการใชทไมไดรบการอนญาต กฎหมายลขสทธกไดใหขอยกเวนและขอจำกดในลขสทธ ซงเรยกกนโดยทวไปวา “การใชงานโดยธรรม” แกสาธารณชนเพอลดการใชสทธเดดขาดของผทรงสทธ   จากการเปลยนแปลงทรวดเรวของเทคโนโลย  จงทำใหเกดผลกระทบตอความสมดลในผลประโยชนระหวางผทรงสทธและผใชสทธ  ผทรงสทธไดสรางเครองมอปองกนทางเทคนค หรอ Digital Right Management (DRM) ขน   เพอปกปองงานของตนจากการเขาถงโดยไมไดรบอนญาตในสภาวะแวดลอมทเปนดจทล  อยางไรกด  DRM ไดกลายเปนประเดนททาทายตอวตถประสงคหลกของหลกการใชงานโดยธรรม โดยเฉพาะในเรองการเขาถงสารนเทศของสถาบนการศกษา  หองสมด  และสงคมสารนเทศและความร Copyright law grants the right holders the exclusive rights in order to prohibit the unauthorized use on one hand and on the other hand, it provides the public the exceptions to and limitations on copyright, as generally called “fair use”, in order to cut down the right holders’ exclusive rights. Due to the rapid change of technology, the balancing interests between the right holders and users are affected. The right holders create a technical protection device, Digital Right Management (DRM), to control unauthorized access in the digital environment. Nevertheless, DRM becomes a challenging issue for the core purpose of the fair use doctrine, especially information access of educational institutions, libraries, and information and knowledge society.
Digital Rights Management and the Process of Fair Use
Producers of digital media works increasingly employ technological protection measures, commonly referred to as "digital rights management" (or "DRM") technologies, that prevent the works from being accessed or used except upon conditions the producers themselves specify. These technologies have come under criticism for interfering with the rights users enjoy under copyright law, including the right to engage in fair uses of the DRM-protected works. Most DRM mechanisms are not engineered to include exceptions for fair use, and user circumvention of the DRM may violate the Digital Millennium Copyright Act even if the use for which the circumvention occurs is itself noninfringing. The academic literature on fair use in digital media has suggested several possible ways to resolve the tension between fair use on the one hand and DRM on the other. Among the more provocative possibilities is that DRM technologies themselves may evolve to incorporate greater built-in protections for end-user rights. This article examines several such proposals and finds that they are not likely to provide users with the same measure of protections for fair use of copyrighted works that exists in the offline world. The failure of these proposals, however, does not suggest that the broader goal of protecting fair use rights in digital media is unattainable. It is possible to advance much more closely towards that goal by altering the design philosophy of DRM technologies to focus more on the processes by which fair uses occur and less on attempting to replicate the substantive law of fair use in machine-administrable form. The article concludes by outlining one possible system engineered to protect the process of fair use.
Research on Control and Planning of Soft-Wing UAV for Haze Removal
The existence of fog and haze has caused great pollution to the environment. The research of removing haze is a hot topic in recent years. In this paper, a special haze removal algorithm based on Soft- Wing UAVis proposed. In this algorithm, two track control strategies are designed based on the Soft-Wing UAV model transfer function. A SIMULINK platform based mathematical model of Soft-Wing UAV is built to testified effectiveness of the two track control strategies. An autonomous ergodic-planning algorithm with greedy strategy and foldback algorithm for Soft-Wing UAV is designed. Within the algorithm, the haze regional has been modelled, the cost matrix is constructed, and the planning and ergodic strategy is proposed. Finally, the experimental results validates the reliability of the algorithm in the application of haze removal with the proposed evaluation Index.