• Title/Summary/Keyword: Space supervision

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Magnetic Field Analysis for Development of Magnetic Torquer

  • Yim, Jo-Ryeong;Lee, Seon-ho;Rhee, Seung-Wu
    • Bulletin of the Korean Space Science Society
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    • 2003.10a
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    • pp.63-63
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    • 2003
  • There are many actuators and sensors used for attitude control system for KOMPSAT such as Reaction Wheel Assembly, Magnetic Torque Assembly, Dual Thruster Module, Solar array Drive, Three Axis Magnetometer, Conical Earth Sensor, Fine Sun Sensor Assembly, Coarse Sun Sensor Assembly, Gyro Reference Assembly and so on. For KOMPSA T satellite it has been considered using the Magnetic Torquer (MTQ) generating the magnetic dipole moment. In general, the magnetic dipole moment for satellite attitude control system is used for dumping out the excessive reaction wheel momentum so that the reaction wheel speed is not saturated. The objective of this study is to analyze the magnetic field characteristics generated by the Magnetic Torquer using the Maxwell 2D Field Simulator software. Currently, the developing model (DM) of the MTQ is being developed and manufactured at a company under the supervision of KARL MTQ is an electromagnet consisting of a ferromagnetic cylindrical core on which an excitation coil is wound. A current is passed through the coil to produce a dipole momentum in the ferromagnetic core. The configuration of the MTQ will be introduced in the presentation. The 2 dimensional model of the MTQ is drawn as axisymmetric models in RZ plane, and each corresponding material is assigned to the each MTQ object, the core, coil, and background. After the boundary conditions, current sources, and solution parameters are set up, the magnetic field intensities, directions, and other values specified by users can be calculated by using the finite element analysis. The theoretical magnetic field quantities obtained by the Maxwell 2D Simulator can be used for the basis of the development of the MTQ.

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A Study on Symbols of Suppression and Liberty in the Movie (영화 <피아니스트>의 억압과 자유의 상징 연구)

  • Choi, Il-Mok
    • The Journal of the Korea Contents Association
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    • v.16 no.12
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    • pp.151-159
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    • 2016
  • The discussion was started from the question about how literary linguistic expressions are reproduced in the movies. This study focuses on the cinematized version of Jelinek's "Die Klavierspielerin", the by Michael Haneke. and looking for cinematization of literary works and these aesthetic values. The original delicately describes the life of Erika who has been living under the supervision and control by her mother. The topic of the is the conflict between the controlling mother and the desires of the heroin Erika who has been living under the suppression. The world of suppression symbolized by her mother is described as closed and dark space while the world of Erika and her desires, represented by Walter is described as open and bright space. The life of Erika living under control symbolized by prison-like double doors, iron-barred window, darkness and shadow is abnormally distorted. Even the piano that must be the center of her life as a pianist is also one of the symbols of dark world of suppression.

Walking training contents based on Augmented Reality for dizziness rehabilitation (어지럼증 재활을 위한 증강현실 기반 보행훈련 콘텐츠)

  • Ma, Jun;Lee, Sung Jin;Sung, Nak-Jun;Min, Sedong;Hong, Min
    • Journal of Internet Computing and Services
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    • v.20 no.4
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    • pp.47-53
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    • 2019
  • In general, dizziness is caused by various situations, but among them, symptoms due to dysfunction of the motor system belonging to the nervous system are the most severe, accompanied by nausea and vomiting. Treatment of these dizziness includes drug therapy, surgical therapy, and rehabilitation. Drug therapy and surgery are generally performed in vest rehabilitation training, which is a rehabilitation therapy because of the risk of aftereffects. The vestibular rehabilitation training includes eye training, posture stabilization training, and walking training. Among them, walking training is performed in a certain space under the supervision of a doctor or a professional therapist, so that the time and space burden is increased. In order to solve this problem, we implemented gait training contents which can be used for rehabilitation training by using the augmented reality technology. It is expected that it can be utilized as dizziness rehabilitative contents which can be used in medical environment through clinical tests for patients with dizziness.

Some Issues on China General Aviation Legislation (中國通用航空立法若干問題研究)

  • Shuang, Luan
    • The Korean Journal of Air & Space Law and Policy
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    • v.31 no.2
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    • pp.99-143
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    • 2016
  • General aviation and air transport are two wings of the civil aviation industry. Chinese air transport is developing rapidly, and has become the world second air transport system only second to US since 2005. However, Chinese civil aviation is far behind the world average level, and cannot meet requirements of economic construction and social development. The transition and structural adjustment of Chinese economy provide the general aviation with a unprecedented broad market. The prospect of general aviation is promising and anticipated. The development of general aviation industry needs the legislative supports, and the current legislative conditions of Chinese general aviation are undoubtedly far behind the realistic requirements. Accelerating the legislation in Chinese general aviation industry requires scientific legislation concept. First, Legislation must promote development of general aviation industry. The general aviation will serves as a Chinese emerging industry that boosts domestic demand, promotes employment and expedite domestic economic development. We should, based on both the concept of promoting the industrial development of general aviation and national industrial planning, enact and rectify relative laws and regulations. And we should also straighten out the relationship between aviation security and industrial development and promote the revolution of low-altitude airspace management in an all-round way, in order to improve the utilization rate of airspace resources, classify and establish airspace, simplify examination and approval procedure and intensify operation management. In addition, what we should do is to expedite the infrastructure layout construction, guide the differentiated but coordinated development of general aviation industries in various areas, establish a united supervision mechanism of general aviation, redistrict the responsibilities of Chinese Air Control Agency and set up legislation, law enforcement and judicial systems with clarified institutions, clear positioning and classified responsibilities, so as to usher in a new era of the legislative management of Chinese general aviation industry. Second, shift the focus from regulations to both regulations and services. Considering the particularity of the general aviation, we should use American practices for reference and take into account both regulation and service functions when enacting general aviation laws. For example, we should reduce administrative licensing and market supervision, and adopt "criteria" and "approval" management systems for non-commercial and commercial aviation. Furthermore, pay attention to social benefits. Complete social rescuing mechanism through legislation. It should be clarified in legislation that general aviation operators should take the responsibilities of, and ensure to realize social benefits of environmental protection and ecological balance .Finally, rise in line with international standards. Modify Chinese regulations which is inconsistent with international ones to remove barriers to international cooperation. Specify basic legislative principles. One is the principle of coordination. Realize coordination between the civil aviation and general aviation, between military aviation and civil aviation, and among departments. Two is the principle of pertinence. The general aviation has its own rules and specialties, needing to be standardized using specialized laws and regulations. Three is the principle of efficiency. To realize time and space values of general aviation, we should complete rules in aerospace openness, general aviation airport construction, general aviation operations, and regulation enforcement. Four is the principle of security. Balance the maximum use of resources of Chinese airspace and the according potential threats to Chinese national interests and social security, and establish a complete insurance system which functions as security defense and indemnificatory measure. Establish a unified legal system. Currently, the system of Chinese general aviation laws consists of national legislation, administrative laws and regulations and civil aviation regulations (CAR). Some problems exist in three components of the system, including too general content, unclear guarantee measures, incomplete implementation details, and lacking corresponding pertinence and flexibility required by general aviation regulations, stringency of operation management and standards, and uniformity of standards. A law and regulation system, centered on laws and consisting of administrative laws regulations, industrial regulations, implementation details, industrial policies and local laws and regulations, should be established. It is suggested to modify the Civil Aviation Law to make general aviation laws complete, enact the Regulations of General Aviation Development, and accelerate the establishment, modification and abolition of Chinese general aviation laws to intensify the coordination and uniformity of regulations.

Evaluation of Dynamic Rock Stiffness Using In-hole Seismic Technique (인홀 탄성파 시험을 이용한 암반의 동적 강성 평가)

  • Sun Chang-Guk;Kang Byung-Soo;Kim Young-Su;Mok Young-Jin
    • The Journal of Engineering Geology
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    • v.15 no.3
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    • pp.309-323
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    • 2005
  • Dynamic stiffness of subsurface materials is one of the most important geotechnical parameters in predicting deformational behavior of structures as well as practicing seismic design and performance evaluation. In an effort to measure the parameter efficiently and accurately, various borehole seismic testing techniques have been, thus, developed and used during past several decades. Moreover, recent rush of underground-space projects and increasing size of structures put more stress on reliable site investigation techniques in estimating stiffness of rock mass. In this paper, a new technique called 'in-hole seismic test' has been implemented to measure the dynamic stiffness of rock masses at subsurface foundations and tunnel-faces. The reliance of in-hole seismic test was evaluated by comparing the testing results at several rock sites with those of other borehole techniques and the technique tunnls out to be an efficient and accurate in-situ testing technique.

A Study on the Cosmology of Lee Jae-Ma and the Propriety of the Visceral Assignment by Sa-sang Constitution. (이제마(李濟馬)의 우주론(宇宙論)과 사상적(四象的) 장부배속(臟腑配屬) 타당성(妥當性) 고찰(考察) (태극-심(太極-心), 사상(四象)-폐비간신(肺脾肝腎)의 사상적(四象的) 이해))

  • Kim, Jin Sung
    • Journal of Sasang Constitutional Medicine
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    • v.9 no.1
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    • pp.245-253
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    • 1997
  • The methodology of the Oriental philosophy is deductive and that of the of Occidental philosophy is inductive. Therefore study on the Oriental philosophy must start from right comprehension of fundamental premise before detailed analysis. The writer studied the meaning of the cosmology which forms the basis of Sa-sang constitutional philosophy and the propriety of visceral assignment by Sa-sang constitution which forms the theoletiacal basis of Sa-sang constitutional medicine. The results are following ; 1. The cosmology of Lee jae-ma has the existent principle but don't have the side of the formative principie. 2. The cosmology of Lee jae-ma is not that searchs for the objective rule of nature but that centers around a human being by subjective understanding system. 3. The cosmology consists of four elements, that is mind(心), body(身), events(事), and nature(物). Among them mind and body means a human being, nature means the natural environment containing time and space, events means not that of nature but that of human being. 4. The mind and body as Yin-yang(陰陽) means the state which objects and self become one. 5. The mind as the Great-Absolute(太極) has the possibility of two interpretation, Firstly it means the state of the source of life which nature and human being become one, and secondly it means that the mind of a human being becomes the cosmos or the center of the cosmos. 6. In the visceral assignment by Sa-sang constitution the position of heart, the Great-Absolute in center is immanent within four viscera and the function of it is that the undifferentiated unitary organic body, after it is diffrentiated still serves as the unitary organic whole by mutual connection, adjustment, unification and supervision. 7. The Great-Absolute in center is divided into the Great-Absolute of mind and that of body. And the Great-Absolute of body consists of the heart and the system of blood vessel, that of mind means the self-consciousness(自我).

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Introduction to CM Experience from Incheon International Airport (IIA) Construction Project (인천국제공항건설 사업관리 경험)

  • Park, Dae-Won
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2004.11a
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    • pp.20-25
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    • 2004
  • On July $18^{th}$, 2003, Incheon International Airport Corporation(lIAC) signed the Construction Management Service Contract with KIDS consortium (composed of Kun-Won Eng., ITM Corp, Do-Hwa Eng, Space Croup) for the $2^{nd}$ phase construction protect consists of landfill, $\#3$ runway, remote Concourse, IAT, BHS, cargo terminal, etc scheduled to be finished by the end of 2008. KIDS dispatched qualified engineers to the Construction Management Division of IIAC for providing technical assistance to IIAC members to pursue project goals in tulle. within budget with appropriate quality level to build one of leading hul] airports for the Northeast Asia legion in the $21^{st}$ century. The work scope covers upgrading various project procedures and related computer programs, cost and schedule control, design supervision for building design including support systerns such as HVAC, fire protection, elevators and escalators, boarding bridges, electrical and communication systems, and technical support for IAT/BHS, QA/QC, field test and inspection, start-up and commissioning, etc. The purpose of this paper is to introduce the major activities of the Construction Management Services performing at the IIA project for your reference.

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A Study on the Actual Condition and Suggestions for Improvement in the Operation of the Field Practicum for Healthy Family (건강가정현장실습 운영실태와 개선방안에 관한 연구)

  • Son, Yeo-Kyoung;Lee, Song-Yi
    • Journal of Family Resource Management and Policy Review
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    • v.13 no.3
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    • pp.247-280
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    • 2009
  • The purpose of this study was to investigate the actual conditions of management of the healthy family field practicum and to present suggestions for its improvement. For this purpose, a preliminary investigation, survey, data analysis, interview as secondary source, and final data analysis were processed as research methods. The subjects of this study were the 42 supervisors in the centers which oversee the field practicum experience and the 12 supervisors in the centers which do not oversee the field practicum experience. 3 supervisors were interviewed to inquire about the reformation of field instruction in Healthy Family Support Centers. Analysis was made of the general characteristics of the above-mentioned 54 supervisors, including sex, age, academic background, certificate of qualification, class of position, and length of career related to the healthy family program. The environment of the field practice, such as the numbers of students supervised, time of field practice, practice hours, and so on, was examined in the centers which oversee the field practicum experience. The actual condition of operation investigated was divided into the preparatory stage, the early stage, the midterm stage, and the end stage. Research was conducted on the improvement of the field practicum, including the proper number of students supervised, adequate practice hours, interaction with universities or colleges, obstacles to the field practicum, and of practicum. The possibility and preparation of a further field practicum was conducted for 12 Healthy Family Support Centers, by inquiring about (a) the reasons for not overseeing the field practicum experience and (b) the needs of universities or colleges for a field practicum. The 54 supervisors surveyed suggested a particular need for improvement in human resources, the space of field instruction, system of field practicum, length of practice hours, orientation for students etc. This study investigated the actual conditions and suggested improvements of the field practicum in Healthy Family Support Centers. Therefore, its results should be meaningfully used to develop the Field Practicum for the Healthy Family and to conduct further studies.

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Internet Web-Based Remote Control System For Permanent Magnet Synchronous Motor Drives (인터넷 웹 기반의 PMSM원격제어시스템)

  • 김대현;최양광;김영석
    • Journal of the Institute of Electronics Engineers of Korea SC
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    • v.41 no.2
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    • pp.9-16
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    • 2004
  • As the industry is developed, uses of various electric motor are increasing from general home to various fields of industry, and the kind becomes various daily. For these reasons, it is required to study the remote control and a package management about change of a speed drive system the supervision of administration appliance by real time, and the collection and process data together using internet prevailed on industry whole. Also, we can expect big effect in time and space, side of cost-cutting by control directly and manage appliance through internet. This paper deals with the development of a Web-Based remote control system for permanent magnet synchronous motor drives. The client/server system using TCP/IP protocols and DSP controller for remote control through internet and the Web interface that users can confirm data and state of PMSM is developed. This system is available for driving, braking, variable speed control and monitoring for PMSM in real time through administration program of Web-Based.

The Analytical Research on Community Centers Used as Hub Spaces of Communities and Their Utilization Status - Focus on the Community Center in Daegu - (마을 공동체 거점공간으로 활용되는 커뮤니티 센터 및 이용현황 분석 연구 - 대구광역시 커뮤니티 센터를 중심으로 -)

  • Lee, Hyun-Jin;Kim, Young-Hwa;Lee, Sang-Hong
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.34 no.9
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    • pp.31-42
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    • 2018
  • With the rapid progress of urbanization today, communities among members of society have collapsed. For dealing with the collapse of communities, special laws regarding urban regeneration revitalization and support were enforced and each local government founded community centers to revitalize urban village communities. These community centers were built to play a pivotal role in communities, but they have difficulties managing and supervising. Therefore, this study aims to provide basic data for community center planning and revitalization by examining and analyzing the present state of community center spaces for creation of communities among residents and the present state of use so the existing purpose of establishment as a base space of village community revitalization can be achieved in the future. For this study, first, in the literature review, the concepts of village community and community center were established, based on a theoretical consideration, and the need of research was identified through consideration of preceding studies. Second, in relation to the present state of use, the present state of community center spaces, programs, management and supervision, locations and populations was investigated and analyzed, and community center users' basic characteristics, satisfaction and consciousness of community centers were examined and analyzed. Based on this method and analysis, this study is focused on providing basic data for community center revitalization and planning.