• Title/Summary/Keyword: general conditions

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Online ADR for the E-Commerce? European Union's ADR Legislation for Cross-Border Online Trade

  • Chung, Ha-Sung
    • Journal of Arbitration Studies
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    • v.25 no.3
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    • pp.135-154
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    • 2015
  • The European Union has adopted the ADR Directive and ODR Regulation in 2013 with the purpose to strengthen the e-commerce within the EU. Not covered by these legislations is the trade in the B2B sector. The author examines the question of whether online ADR under the currently applicable legal framework would be possible in Germany. At the center of his review is the possibility of an arbitration clause which refers exclusively to an online ADR scheme, may be included in the General Terms and Conditions of an online trader.

A Study on Shape Determination of Cable-Net Structures with Restrained Conditions (제한조건을 갖는 케이블-네트 구조물의 형상결정에 관한 연구)

  • 이장복;권택진;하창우
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 1999.10a
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    • pp.325-332
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    • 1999
  • As part of the conceptual disign of cable and membrane structures, the adequate shape is decisive with respect to load bearing behaviour and aesthetic expression of the structure. The force densities which are the force-length ratio are very useful parameters for the description of equilibrium state of any general cable-net structures. Because equilibrium states are obtained by solving linear equations the force desity method has a advantage compared with other solution strategies. But if there are futher restrainted conditions in force density the linear method will be extended to nonlinear one. The numeriacl methods are based upon least square and general inverse method for sieving nonlinear eqations. In this paper, the results from two methods is compared through several examples.

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Ultimate Strength Analysis of Restrained Reinforced Concrete Slender Columns Under Concentric Load (중심축하중을 받는 구속철근콘크리트 장주의 극한강도해석)

  • 박재윤;김진성
    • Computational Structural Engineering
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    • v.4 no.1
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    • pp.121-132
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    • 1991
  • The purpose of this study is to analyze concentrically loaded reinforced concrete columns with the restrained effect having rectangular cross-section and general boundary conditions. Accordingly, this investigation is to construct a typical analytical model of the reinforced concrete columns with general boundary conditions. The mechanical components of the analytical model are to be rationally defined so as to model the actual behavior as closely as possible, and the ultimate strength of the reinforced concrete columns are investigated by end restrained effect.

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Worst case analysis of circulating type ropeway using optimal design technique (최적설계 기법을 이용한 순환식 삭도 선로의 최악조건 해석)

  • 최수진;신재균
    • Transactions of the Korean Society of Mechanical Engineers
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    • v.13 no.3
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    • pp.554-560
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    • 1989
  • An optimal design technique is used as a systematic approach to analyze the worst case of a circulating type ropeway for a given geometry and operating conditions. Worst case is meant here the case when the positions and weights of the cars are so conditioned that the minimum of all the reaction forces between the main rope and the towers is minimum. In the course of this study, a general theory for the deflections and tensions of the main rope were also derived taking into account of the variation of the weights and positions of the individual cars. And through an analysis of example ropeways, some general conditions for the worst case are deduced.

Free Vibration Analysis of Axisymmetrical Circular Plate by Using Differential Transformation Method (미분변환법을 이용한 축대칭 원판의 자유 진동 해석)

  • Shin, Young-Jae;Yun, Jong-Hak;Jy, Young-Chel;Kim, Jun-Nyen;Ferdinand, T.
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2005.11a
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    • pp.604-607
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    • 2005
  • The free vibration of solid circular plates has been studied using the differential transformation method(DTM). The effects such as mass at edge and elastic restraints have been considered. In order to avoid the singularity problem at the solid circular center two regularity conditions were applied with respect to the number of circumferential nodal line. The non-dimensional natural frequencies of the general circular plates were obtained for various boundary conditions. The results obtained by this method were compared with previous works. DTM showed fast convergency, accuracy, efficiency and validity in solving vibration problem of general circular plates.

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A refined functional and mixed formulation to static analyses of fgm beams

  • Madenci, Emrah
    • Structural Engineering and Mechanics
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    • v.69 no.4
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    • pp.427-437
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    • 2019
  • In this study, an alternative solution procedure presented by using variational methods for analysis of shear deformable functionally graded material (FGM) beams with mixed formulation. By using the advantages of $G{\hat{a}}teaux$ differential approaches, a refined complex general functional and boundary conditions which comprises seven independent variables such as displacement, rotation, bending moment and higher-order bending moment, shear force and higher-order shear force, is derived for general thick-thin FGM beams via shear deformation beam theories. The mixed-finite element method (FEM) is employed to obtain a beam element which have a 2-nodes and total fourteen degrees-of-freedoms. A computer program is written to execute the analyses for the present study. The numerical results of analyses obtained for different boundary conditions are presented and compared with results available in the literature.

Analysis of Strain Gauge Data Onboard the IBRV ARAON during Icebreaking Voyage in the Antarctic Sea Ice (쇄빙연구선 ARAON호의 남극해 쇄빙운항 중 계측된 스트레인게이지 데이터 분석)

  • Cheon, Eun-Jee;Choi, Kyungsik;Kim, Ho-Yeon;Lee, Tak-Kee
    • Journal of the Society of Naval Architects of Korea
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    • v.51 no.6
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    • pp.489-494
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    • 2014
  • Estimation of correct ice load under various operating conditions is important during the design and the operation stages of an icebreaker. Normal operating conditions are expected from the official field ice trials and also from general ice transit action. In this paper ice load for the Korean icebreaking research vessel, ARAON, under normal operating condition, is discussed. Published ice load data from full-scale sea trials of six icebreakers were analysed to derive an empirical ice load prediction formula. The IBRV ARAON had sea ice trials during 2010 and 2012 summer season. Strain gauge signal were recorded during her icebreaking voyage and the measured strain data were converted to the equivalent hull stress values. The effect of ARAON's speed in ice and the hull stresses are investigated. By comparing the empirical formula and ice load calculation based von measured data, it is recommended to use the empirical ice load estimation formula for the initial design stage.

Robust Control of Linear Systems Under Structured Nonlinear Time-Varying Perturbations II : Synthesis via Convex Optimazation

  • Bambang, Riyanto-T.;Shimemura, Etsujiro
    • 제어로봇시스템학회:학술대회논문집
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    • 1993.10b
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    • pp.100-104
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    • 1993
  • In Part 1, we derived robust stability conditions for an LTI interconnected to time-varying nonlinear perturbations belonging to several classes of nonlinearities. These conditions were presented in terms of positive definite solutions to LMI. In this paper we address a problem of synthesizing feedback controllers for linear time-invariant systems under structured time-varying uncertainties, combined with a worst-case H$_{2}$ performance. This problem is introduced in [7, 8, 15, 35] in case of time-invariant uncertainties, where the necessary conditions involve highly coupled linear and nonlinear matrix equations. Such coupled equations are in general difficult to solve. A convex optimization approach will be employed in this synthesis problem in order to avoid solving highly coupled nonlinear matrix equations that commonly arises in multiobjective synthesis problem. Using LMI formulation, this convex optimization problem can in turn be cast as generalized eigenvalue minimization problem, where an attractive algorithm based on the method of centers has been recently introduced to find its solution [30, 361. In the present paper we will restrict our discussion to state feedback case with Popov multipliers. A more general case of output feedback and other types of multipliers will be addressed in a future paper.

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Survey of Fatigue-Related Health Conditions of General Population in a Metropolis

  • Son, Chang-Gue
    • The Journal of Korean Medicine
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    • v.32 no.6
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    • pp.67-73
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    • 2011
  • Objectives: To examine the overview of fatigue-related health conditions in the Korean general population. Methods: Data were collected from 2,203 adults (1,126 men and 1,077 women) via a self-reporting questionnaire and their sleeping, exercise, stress, physical problems, use of functional food, and fatigue status were analyzed. Results: The average sleeping hours was about $6.6{\pm}2.0$ hrs per day, and 24.3% of subjects didn't exercise (over 30 min) in a week. Around 16.5% of subjects were under severe stress, and 46.1% (36.9% male vs. 55.6% female) had had trouble with at least one form of physical distress including dyspepsia, headache or muscular pain. 45.4% (37.2% male vs. 53.9% female) of subjects used functional supplements. 46.3% (42.8% male vs. 50.0% female) of subjects complained of chronic fatigue, and they were significantly different compared with no-fatigue subjects regarding severe stress status (8.6% vs. 24.0%), frequency of physical distress (33.2% vs. 69.9%), and use of functional supplements (41.6% vs. 49.8%). Conclusion: This result first reports the features of fatigue-related health conditions including prevalence of chronic fatigue in the Korean population. This data could be helpful to develop fatigue-focused traditional Korean medicine in the future.

Possibility of Spreading Infectious Diseases by Droplets Generated from Semiconductor Fabrication Process (반도체 FAB의 비말에 의한 감염병 전파 가능성 연구)

  • Oh, Kun-Hwan;Kim, Ki-Youn
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.32 no.2
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    • pp.111-115
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    • 2022
  • Objectives: The purpose of this study is to verify whether droplet-induced propagation, the main route of infectious diseases such as COVID-19, can occur in semiconductor FAB (Fabrication), based on research results on general droplet propagation. Methods: Through data surveys droplet propagation was modeled through simulation and experimental case analysis according to general (without mask) and mask-wearing conditions, and the risk of droplet propagation was inferred by reflecting semiconductor FAB operation conditions (air current, air conditioning system, humidity, filter conditions). Results: Based on the results investigated to predict the possibility of spreading infectious diseases in semiconductor FAB, the total amount of droplet propagation (concentration), propagation distance, and virus life in FAB were inferred by reflecting the management parameter of semiconductor FAB. Conclusions: The total amount(concentration) of droplet propagation in the semiconductor fab is most affected by the presence or absence of wearing a mask and the line air dilution rate has some influence. when worn it spreads within 0.35~1m, and since the humidity is constant the virus can survive in the air for up to 3 hours. as a result the semiconductor fab is judged to be and effective space to block virus propagation due to the special environmental condition of a clean room.