• 제목/요약/키워드: Science and law

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The Historical Development of Consumer Protection

  • Alharthi, Saud Hamoud
    • International Journal of Computer Science & Network Security
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    • 제22권8호
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    • pp.392-398
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    • 2022
  • Consumers are continually in need of protection both locally and globally. The importance of providing consumer protection stems from the fact that the consumer represents the weaker party in the contractual process. This research focuses on examining the extent to which Saudi Law guarantees the protection of consumers using e-commerce from the expected legal problems such as antifraud locally and globally.

History of The Legal Developments of Corporations in Saudi Arabia

  • Alzhrani, Abdulrahman AA
    • International Journal of Computer Science & Network Security
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    • 제22권8호
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    • pp.420-424
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    • 2022
  • The Arab Automotive Company was the first corporation in Saudi Arabia and was founded in 1928. Since then, the number of Saudi corporations had increased. In 1985, Tadawul (The Saudi Stock Exchange ) was instituted under the supervision of the Saudi Arabian Monetary Authority (SAMA) and the base value of the index was 1000. This decision came as a response to accelerated growth in the number of Saudi corporations which had increased during the 1970s as the Saudi's economy developed.

Study on Legal Issues of Facility Management of Children's Swimming Pool

  • KWON, Yeon Taek;SEO, Myung Seok;SEO, Won Jae
    • Journal of Sport and Applied Science
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    • 제3권1호
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    • pp.19-25
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    • 2019
  • Purpose: Children's swimming pools are picking up faster than the other types of swimming pool. Yet, safety law-related studies are still lack. This study is to review legal status of children's swimming pool in Korea and to discuss the related legal issues for safety management of children's swimming pool. Research design, data, and methodology: The study reviewed law and clauses for sport facility management and related legal clauses with chilren's swimming pool management, and sport facility-related articles. Results: Safety management of children's swimming pool should currently follow law for sport and physical education facility management because of no its own legal norm for children's swimming pool. Given this, specific law and clauses for children's pool management need to be legislated to prevent risks for children and to satisfy specific safety factors considering careless behavior of children. Conclusions: Regarding this, the study points out five suggestions. First, law should be established to make notification of safety rules mandatory and this notification should be placed in the pool. This notification would be better effective if it is visualized. Second, according to law, safety 7 rules of children' s swimming pool need to be legistrated and educated for pool managers to obey them. Pool managers could also add their own rules to the 7 rules. Finally, preparation of emergency kits and safety devices need to be mandatory in the pool. Further implications were discussed.

Legal Regulation Of Digital Rights In Ukraine

  • Bilenko, Marianna;Ilchenko, Hanna;Herych, Anatolii;Solodka, Olena;Podolyak, Svitlana
    • International Journal of Computer Science & Network Security
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    • 제22권9호
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    • pp.59-62
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    • 2022
  • In the scientific research, the object of research is a complex of legal relations, which are formed by the use of modern digital technologies. The subject of this work is the novelties of Ukrainian and foreign legislation, norms of international law aimed at regulating social relations in the field of digital rights, as well as doctrinal provisions and materials of law enforcement practice. Within the framework of this work, two types of digital rights are distinguished, those that exist in the law of Ukraine, and the issues of law that apply to legal relations, regarding the turnover of each of them, are considered. Examples of law applied in foreign countries are given for comparison. On the basis of a comprehensive study of the legal framework and positions of scientists, the prospects for the development of legal regulation of digital rights were noted.

Space-Stretch Tradeoff Optimization for Routing in Internet-Like Graphs

  • Tang, Mingdong;Zhang, Guoqiang;Liu, Jianxun
    • Journal of Communications and Networks
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    • 제14권5호
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    • pp.546-553
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    • 2012
  • Compact routing intends to achieve good tradeoff between the routing path length and the memory overhead, and is recently considered as a main alternative to overcome the fundamental scaling problems of the Internet routing system. Plenty of studies have been conducted on compact routing, and quite a few universal compact routing schemes have been designed for arbitrary network topologies. However, it is generally believed that specialized compact routing schemes for peculiar network topologies can have better performance than universal ones. Studies on complex networks have uncovered that most real-world networks exhibit power-law degree distributions, i.e., a few nodes have very high degrees while many other nodes have low degrees. High-degree nodes play the crucial role of hubs in communication and inter-networking. Based on this fact, we propose two highest-degree landmark based compact routing schemes, namely HDLR and $HDLR^+$. Theoretical analysis on random power-law graphs shows that the two schemes can achieve better space-stretch trade-offs than previous compact routing schemes. Simulations conducted on random power-law graphs and real-world AS-level Internet graph validate the effectiveness of our schemes.

무인전투기 물리적 전투력 분석 (Analysis of Physical Combat Power for Unmanned Combat Aerial Vehicle)

  • 민승식;오경원
    • 항공우주시스템공학회지
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    • 제11권6호
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    • pp.50-55
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    • 2017
  • 본 논문은 란체스터 방정식을 이용하여 우리의 무인전투기(블루군)과 적 무인전투기(레드군) 간의 교전 결과를 예측하였다. 란체스터 법칙은 군단의 전력이 전투원 수에 비례한다는 제1법칙(linear law)과 전투원 수의 제곱에 비례한다는 제2법칙(square law)가 있다. 제1법칙은 게릴라전에 적합한 법칙이고 제2법칙은 전면전에 적합한 법칙으로 알려져 있으며 일반적으로 제2법칙이 많이 쓰인다. 란체스터의 제2법칙을 이용하여 교전 결과를 예측하였다. 교전에서 승리하기 위한 전투손실률 값은 물론 필요 전력수를 추산하였고, 우리 군의 피해를 1대 미만으로 만들기 위한 전력수도 예측하였다. 적 무인전투기와 아군 무인전투기의 전투 대수가 같을 경우 승리를 보장받으려면 전투손실률이 1:1.5 이상이 되어야 한다.

공장건물에 연결된 가설건축물 화재예방에 관한 연구 (A Study on the Fire Prevention of Temporary Constructions Connected with Factory Buildings)

  • 이정용;이창섭
    • 한국화재소방학회논문지
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    • 제17권1호
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    • pp.68-75
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    • 2003
  • 가설건축물은 일시적으로 사용될 목적으로 축조되는 건축물이다. 그러나 가설건축물이 건물과 연결되어 장기적으로 사용되는 경우 화재예방상의 위험성이 증가하나 이를 위한 제도적 장치는 마련되어 있지 않다. 본 연구에서는 공장건물과 연결되어 사용되는 가설건축물의 화재를 예방하는 방안을 모색하기 위하여 현행 관련법규 검토하고, 표본지역에 대한 실태조사를 실시하고, 소송사례를 수집하였으며, 가설건축물의 유형별 위험성을 고찰함으로써 다음과 같은 결론을 얻었다. 가설건축물을 본 건물과 이격하여 설치하도록 하는 규정을 건축법 시행령에 신설해야 한다. 그리고 건축법의 규정에 의해 증축이 불가능하여 가설 건축물이 설치되는 경우, 건축물과 연결된 가설건축물을 소방법상의 특수장소에 포함시킬 수 있도록 소방법 시행령을 개정해야 하며, 건축물과 연결하여 가설건축물을 설치하는 것을 허가사항으로 하여 허가시 소방관서장의 동의를 구할 수 있도록 건축법을 개정해야 한다.

Crack growth prediction and cohesive zone modeling of single crystal aluminum-a molecular dynamics study

  • Sutrakar, Vijay Kumar;Subramanya, N.;Mahapatra, D. Roy
    • Advances in nano research
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    • 제3권3호
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    • pp.143-168
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    • 2015
  • Initiation of crack and its growth simulation requires accurate model of traction - separation law. Accurate modeling of traction-separation law remains always a great challenge. Atomistic simulations based prediction has great potential in arriving at accurate traction-separation law. The present paper is aimed at establishing a method to address the above problem. A method for traction-separation law prediction via utilizing atomistic simulations data has been proposed. In this direction, firstly, a simpler approach of common neighbor analysis (CNA) for the prediction of crack growth has been proposed and results have been compared with previously used approach of threshold potential energy. Next, a scheme for prediction of crack speed has been demonstrated based on the stable crack growth criteria. Also, an algorithm has been proposed that utilizes a variable relaxation time period for the computation of crack growth, accurate stress behavior, and traction-separation atomistic law. An understanding has been established for the generation of smoother traction-separation law (including the effect of free surface) from a huge amount of raw atomistic data. A new curve fit has also been proposed for predicting traction-separation data generated from the molecular dynamics simulations. The proposed traction-separation law has also been compared with the polynomial and exponential model used earlier for the prediction of traction-separation law for the bulk materials.

Design of a Digital Adaptive Flight Control Law for the ALFLEX

  • Ito, Hideya;Shimada, Yuzo;Uchiyama, Kenji
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2003년도 ICCAS
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    • pp.519-524
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    • 2003
  • In this report, a longitudinal adaptive flight control law is presented for the automatic landing system of a Japanese automatic landing flight experiment vehicle (ALFLEX). The longitudinal adaptive flight control law is designed to track an output of the vehicle to a guidance signal from the guidance portion of the automatic landing system. The proposed adaptive control law in the attitude control portion adjusts the controller gains continuously online as flight conditions change, in spite of the existence of unmodeled dynamics. The number of the controller gains to be adjusted is decreased to 1/2 from the previous studies. Computer simulation involving six-degree-of-freedom (DOF) nonlinear flight dynamics is performed to examine the effectiveness of the proposed adaptive control law. In order to verify the influence of the dispersion of the initial conditions, the Monte Carlo simulation is also applied. The initial conditions are more widely dispersed than the previous studies. As a result, except under the unsuitable initial conditions, the ALFLEX successfully landed on the runway.

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