• Title/Summary/Keyword: science and law

Search Result 2,874, Processing Time 0.035 seconds

The Historical Development of Consumer Protection

  • Alharthi, Saud Hamoud
    • International Journal of Computer Science & Network Security
    • /
    • v.22 no.8
    • /
    • pp.392-398
    • /
    • 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
    • /
    • v.22 no.8
    • /
    • pp.420-424
    • /
    • 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
    • /
    • v.3 no.1
    • /
    • pp.19-25
    • /
    • 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
    • /
    • v.22 no.9
    • /
    • pp.59-62
    • /
    • 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
    • /
    • v.14 no.5
    • /
    • pp.546-553
    • /
    • 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.

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

  • Min, Seungsik;Oh, Kyungwon
    • Journal of Aerospace System Engineering
    • /
    • v.11 no.6
    • /
    • pp.50-55
    • /
    • 2017
  • The objective of this study was to use the Lanchester equation to predict the outcome of our engagement between our unmanned aerial vehicle (UAV) (Blue Group) and enemy UAV (Red Group). Lanchester's law states that the power of corps is proportional to the number of combatants. A second law states that the power of corps is proportional to the square of the number of combatants. The first law is a suitable law for guerrilla warfare while the second law is known as the law suitable for all-out war. Therefore, the second law is commonly used. The second law of Lanchester's was used in this study to predict engagement results. We estimated the battle loss rate value to win the battle as well as the required power number. We also predicted power number to make the damage of our group less than one. The battle loss rate to reliably receive victory when the enemy's UAV and the ally's UAV are equal in number of combat units must be 1: 1.5 or more.

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

  • 이정용;이창섭
    • Fire Science and Engineering
    • /
    • v.17 no.1
    • /
    • pp.68-75
    • /
    • 2003
  • Temporary constructions are defined as constructions for temporary use, but frequently they are used long like permanent constructions and connected with main constructions. In this case, fire hazardousness increase. But there is no way to control this hazard in our system. This study include investigation of present related law survey about sample complex, collection of related lawsuit result and estimation of hazardousness of each contemporary construction type. The conclusion is that the article that specify distance between main construction and temporary one should be created in the architectural law. Or to apply fire service law to area of temporary construction, fire service law should be changed properly.

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
    • /
    • v.3 no.3
    • /
    • pp.143-168
    • /
    • 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
    • /
    • 2003.10a
    • /
    • pp.519-524
    • /
    • 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.

  • PDF