• Title/Summary/Keyword: Use of restraint

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Review of Transverse Steel Design in Continuously Reinforced Concrete Pavement through Finite Element Analysis (유한요소해석을 이용한 연속철근콘크리트 포장의 횡방향 철근 설계 검토)

  • Choi, Pangil;Ha, Soojun;Chon, Beom Jun;Kil, Yong Su;Won, Moon-Cheol
    • International Journal of Highway Engineering
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    • v.16 no.2
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    • pp.25-34
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    • 2014
  • PURPOSES : This paper numerically evaluates the contribution of transverse steel to the structural behavior of continuously reinforced concrete pavements to understand the role of transverse steel. METHODS : Two-lane continuously reinforced concrete pavements with and without transverse steel were analyzed through finite element analysis with the aid of commercial finite element analysis program DIANA; the difference in their structural behavior such as deflection, joint opening, and stress distribution was then evaluated. Twenty-node brick elements and three-node beam elements were used to model concrete and steel, respectively. Sub-layers were modeled with horizontal and vertical tensionless spring elements. The interactions between steel and surrounding concrete were considered by connecting their nodes with three orthogonal spring elements. Both wheel loading and environmental loading in addition to self-weight were considered. RESULTS : The use of transverse steel in continuously reinforced concrete pavements does not have significant effects on the structural behavior. The surface deflections change very little with the use of transverse steel. The joint opening decreases when transverse steel is used but the reduction is quite small. The transverse concrete stress, rather, increases when transverse steel is used due to the restraint exerted by the steel but the increase is quite small as well. CONCLUSIONS : The main role of transverse steel in continuously reinforced concrete pavements is supporting longitudinal steel and/or controlling unexpected longitudinal cracks rather than enhancing the structural capacity.

Consideration of Domestic Category Killers for Distribution Environment

  • Kim, Moon-Sook;Kim, Hyeon-Ju
    • The International Journal of Costume Culture
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    • v.2 no.1
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    • pp.31-42
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    • 1999
  • The category killer that has been rapidly growing mainly in advanced countries since early 1990's, is a mew distribution model which aims for obtaining market controlling power by surpassing competing businesses in a specific area of products. The domestic situation of category killers is very different from that of advanced ones abroad since it has just been introduced into the Korean market. At the moment, there are only 10 or so companies operating in the market : Geopyung's , Taeheng's , Midopa's , of Sinsegye Department store, adn of Yerim International. The purpose of this study is to examine problems of domestic companies in the present market by analysing the operation status of category killers in domestic markets as well as foreign ones, and to suggest a counter-strategy of category killers for the distribution environment of the 21st century to improve the competitiveness of Korean distribution industry. The competitiveness of category killers lies above all in products lines. Category killers are equipped with the greatest number of products lines among those of competing businesses due to maximized product selections in an limited range. Another source of competitiveness may be found in balanced strategy positioning. That is to say, category killers are in a position where they can adjust policies towards any of the three purposes while aiming at them altogether : prices of discount stores, products range of specialty stores, and customer service level of department stores. It is also necessary for efficient store operation to use information technology such as electronic data interchange (EDI), electronic pose system(EPOS) and electronic funds transfer (EFTPOS). As for the cost structure, category killers can gain an advantage over other business since operating cost of various sections can be saved. There are, however, certain risks that category killers with strong competitiveness may influence on other businesses a great deal and even facilitate their decline. Yet it seems that the growth of category killers will be more viciously restrained by continuous challenges from other businesses. The distribution industry is supposed to develop through such competition and restraint.

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The Arbitrability of the Subject-matter of a Dispute on the Antitrust Law (독점규제법 관련분쟁의 중재의 대상적격)

  • Kang, Su-Mi
    • Journal of Arbitration Studies
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    • v.20 no.1
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    • pp.41-65
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    • 2010
  • It is a matter for debate that which types of dispute may be resolved by arbitration. This problem is concerning the arbitrability of the subject-matter of a dispute. National laws establish the domain of arbitration. Each state decides which matters may or may not be resolved by arbitration in accordance with its own political, social and economic policy. In response to complexity and diversity of a social phenomenon, the dispute also is various, therefore can not be settled efficiently by means of court adjudication to which applies a law strictly. To overcome such problems we are going to seek to make use of arbitration. According to Korean Arbitration Act Art. 3 (1), any dispute in private laws would be the object of arbitral proceedings. For the promotion of fair and free competition, it is increasingly wide-ranging antitrust legislation across the world. It is matter for debate what can an arbitral tribunal do when confronted with an allegation that the contract under which the arbitration is brought is itself an illegal restraint of trade or in some other way a breach of antitrust law. The underlying question is how to accommodate the conflicting congressional policies favoring resolution of private controversies by arbitration and encouraging private suits to protect the public interests served by the antitrust laws. It is necessary to inquire into the arbitrability of antitrust issues on case-by-case basis, because the types of them are quite diverse. If antitrust issues are the dispute in private laws and the contracting parties agreed to submit to arbitration disputes which have arisen or which may arise between them in the antitrust issues, the antitrust disputes are arbitrable. Not only international antitrust disputes but also domestic antitrust disputes are capable of being resolved by arbitration. When the public interests in the enforcement of antitrust legislation are asserted, it is possible to justify the annulment or the refusal of the recognition or the enforcement of an arbitral award that ignores public policy as a matter of it.

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On the use of the Lagrange Multiplier Technique for the unilateral local buckling of point-restrained plates, with application to side-plated concrete beams in structural retrofit

  • Hedayati, P.;Azhari, M.;Shahidi, A.R.;Bradford, M.A.
    • Structural Engineering and Mechanics
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    • v.26 no.6
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    • pp.673-685
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    • 2007
  • Reinforced concrete beams can be strengthened in a structural retrofit process by attaching steel plates to their sides by bolting. Whilst bolting produces a confident degree of shear connection under conditions of either static or seismic overload, the plates are susceptible to local buckling. The aim of this paper is to investigate the local buckling of unilaterally-restrained plates with point supports in a generic fashion, but with particular emphasis on the provision of the restraints by bolts, and on the geometric configuration of these bolts on the buckling loads. A numerical procedure, which is based on the Rayleigh-Ritz method in conjunction with the technique of Lagrange multipliers, is developed to study the unilateral local buckling of rectangular plates bolted to the concrete with various arrangements of the pattern of bolting. A sufficient number of separable polynomials are used to define the flexural buckling displacements, while the restraint condition is modelled as a tensionless foundation using a penalty function approach to this form of mathematical contact problem. The additional constraint provided by the bolts is also modelled using Lagrange multipliers, providing an efficacious method of numerical analysis. Local buckling coefficients are determined for a range of bolting configurations, and these are compared with those developed elsewhere with simplifying assumptions. The interaction of the actions in bolted plates during buckling is also considered.

Effects of Upper Extremity Exercise Training Using Biefeedback and Constraint-induced Movement on the Upper Extremity Function of Hemiplegic Patients (바이오피드백과 건측 억제유도 운동을 이용한 상지운동훈련이 편마비 환자의 상지기능에 미치는 효과)

  • 김금순;강지연
    • Journal of Korean Academy of Nursing
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    • v.33 no.5
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    • pp.591-600
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    • 2003
  • Purpose: The purpose of this study was to investigate the effects of exercise training using biofeedback and constraint-induced movement on the upper extremity function of hemiplegic patients. Method: A non-equivalent pretest-posttest design was used. Study subjects were a conveniently selected group of 40 hemiplegic patients(20 experimental subjects, 20 control subjects) who have been enrolled in two community health centers. After biofeedback training the subjects of experimental group were given constraint-induced movement, involving restraint of unaffected U/E in a sling for about 6 hours in a day over a period of two weeks, while at the same time intensively training the affected U/E. Outcomes were evaluated on the basis of the VIE motor ability(hand function, grip power, pinch power, U/E ROMs), and motor activity(amount, quality). Result: 1. After 2 weeks of treatment, the motor abilities of affected U/E(hand function, grip power, pinch power, ROMs of wrist flexion, elbow flexion and shoulder flexion/extension) were significantly higher in subjects who participated in exercise training than in subjects in the control group with no decrement at 4-week follow-up. However, there was no significant difference in wrist extension between experimental or control group. 2. After 2 weeks of treatment, the amount of use and the quality of motor activity of affected U/E were significantly higher in subjects who participated in exercise training than in subjects in the control group with no decrement at 4-week follow-up. Conclusion: The above results state that exercise training using biofeedback and constraint-induced movement could be an effective intervention for improving U/E function of chronic hemiplegic patients. Long-term studies are needed to determine the lasting effects of constraint-induced movement.

Yun-Ji(尹指)'s Medical Thought in "Dunongyeonsocheonjimundap(鈍翁演小天地問答)" (조선조 성리학자 윤지(尹指)의 "둔옹연소천지문답(鈍翁演小天地問答)"에 나타난 의학사상 연구)

  • Chough, Won-Joon;Park, Wan-Sik
    • Journal of Korean Medical classics
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    • v.20 no.4
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    • pp.187-210
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    • 2007
  • Dunong(鈍翁), Yun-Ji had born by a concubine, and his dream didn't come true for the restraint of his social position, so he tried to train younger men. His writings still remain 4 volumes of "Dunongyeonsocheonjimundap" and "Dunongdongmongmundap(鈍翁童蒙問答)", which may be called its primer. "Dunongyeonsocheonjimundap" is written in question-and-answer form between Chal-Hye-Ja(察慧子) who has a meager knowledge and Sim-Gyeong-Ong(心耕翁) who search for the truth. It is progressed from the law of nature to human's cultivation of the mind so as to reconfirm the recognition of the unity between the heaven and human beings and lead the interpretation and practice of the metaphysical proposition. It is characterized by making use of metrical compositions to induce plain tone of argument. "Dunongdongmongmundap", whereas, uses archaic writings to describe natural science including astronomy to the beginners. Dunong's scholarship is characterized by these: He explained the metaphysical propositions by approaching usual things including oriental medicine practically; He comprised the Confucian concepts intensively to examine the Oriental studies closely; He groped for the outlooks on the world of taking serious view of human being or human body. And his medical thought is characterized by these: He attached importance to the theory of viscera and bowels based on yin-yang and five phase theory; He suggested the concrete yin-yang theory with a viewpoint of qi-blood theory; He considered the concept of 'six' only as mutual rooting of yin and yang and five visceras and six vowels, and denied the traditional six qi concepts; He explained the ghost theories of the metaphysics based on the yin-yang theory to analogize points of sameness between the oriental medicine and the metaphysics; He emphasized restore yang theory. Therefore, we can say that he regarded the human body as small heaven-earth and grafted the abstract propositions into the actuals so as to put the metaphysical propositions in practice.

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A study on the private autonomies of the disputants in the process of conciliation (민사조정의 활성화와 사적자치)

  • Joo, In
    • Journal of Arbitration Studies
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    • v.13 no.2
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    • pp.613-630
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    • 2004
  • Conciliation is one of the most effective ADR(alternative dispute resolution) which takes the place of civil procedure. It is achieved with disputants' independent will. The disputants negotiate each other, and make peaceful settlement. If a compromise is effected between the two, it regards the compromise as a judgement of the Supreme Court. This effect on the conciliation is afford a basis for the private autonomies. But nowadays, the practical use of the private autonomies is not thoroughgoing enough in our country. It is a matter of no uncommon occurrence for the member of a conciliation commission to form a conclusion about the dispute and to persuade the disputants to accept the conclusion. Even the judges have a tendency to conduct a conciliation like civil procedure. Under these circumstances, it's harsh to the disputants that a compromise in the conciliation has an effect like the judgement of the Supreme Court. So you should reconsider carefully the role or service of a conciliation commission. The role of a conciliation commission must be to guarantee an atmosphere of freedom, and for disputants to negotiate without restraint. So the members of a conciliation commission should make an offer the disputants the information on the members and proceedings of the conciliation. It will make the disputants have a firm belief that the members are fair and conciliation will be progressed in a fair. Moreover they have to notify the disputants of the estimated norms which is concerned in the dispute, too. It will facilitate the negotiation and compromise, and will justify claim preclusion(res judicata) which is based on Korean Civil Conciliation Law(Article 29) says that conciliation has the full force and effect of a civil judgement of the Supreme Court.

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Upper extremity exercise training effects on motor activity, ADL and health related QOL of hemiplegic patients (상지운동훈련이 편마비 환자의 상지활동, 일상생활활동 및 건강관련 삶의 질에 미치는 효과)

  • Kim, Keum-Soon;Kang, Ji-Yeon
    • The Korean Journal of Rehabilitation Nursing
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    • v.5 no.2
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    • pp.134-144
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    • 2002
  • Purpose: The purpose of this study was to investigate the effects of upper extremity exercise training on the motor activity, the ADL and the health related quality of life. Method: A non-equivalent pretest-posttest design was used. Study subjects were conveniently selected 40 hemiplegic patients(20 experimental subjects, 20 control subjects) who had been enrolled in two community health centers. After biofeedback training the subjects of experimental group were given constraint-induced movement, involving restraint of unaffected U/E in a sling for about 6 hours over a period of two weeks, while at the same time intensively training the affected U/E. Outcomes were evaluated on the basis of motor activity(amount, quality) of plegic side, ADL(ADL, IADL) and health related QOL(SF-36). Results: 1. After 2 weeks of treatment, the amount of use and the quality of motor activity of affected U/E were significantly higher in subjects who participated in exercise training than in subjects in the control group. 2. There were no significant differences in ADL and IADL between experimental and control groups. 3. After 2 weeks of treatment, the health related QOL was significantly higher in subjects who participated in exercise training than in subjects in the control group. Conclusion: The above results state that the U/E exercise training could be an effective intervention for improving the motor activity and the health related QOL of chronic hemiplegic patients. Long-term studies are needed to determine the lasting effects of constraint-induced movement.

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CLINICAL STUDY ON THE SIDE EFFECTS OF THE CONSCIOUS SEDATION (약물을 이용한 의식진정시 발생한 부작용에 대한 치험례)

  • Kim, Hyun-Sik;Han, Gook-Jae;Lee, Chang-Seop;Lee, Sang-Ho
    • Journal of the korean academy of Pediatric Dentistry
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    • v.24 no.4
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    • pp.823-829
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    • 1997
  • The patients visiting pediatric dental office have been being younger than the previous, and they were often combined with systemic disease. But, we aren't able to perform the verbal communication, because of their impediment and youthfullness. And, we can't carry out the behavior control via physical restraint, as the developed social structure and the attitude of children and their parents. So, the importance and concerning of conscious sedation using sedative medicine are increased by time and time. Among the various conscious sedation, Chloral Hydrate and Nitrous Oxide inhalation are most popularly used, and barbiturates, benzodiazepine, opioids and hydroxyzine are used often. But, these medications have some side-effects and adverse reactions, may be failed to sedate the children. And limited use of medically compromised patients, especially for ASA class III, IV or more dangerous patients. We, the Department of Pediatric Dentistry, Chosun University have met some dangerous situation due to unfavorable pharmacogenic reactions, but we can control the situation and get well healed results. The below results are common situations and their solutions during conscious sedation. 1. By the intravenous administration, thrombophlebitis is the most common side-effects, but it may be healed with time without any special treatment. 2. Under the definitive guidelines about conscious-sedation, we can perform a safe conscious sedation for ASA class III patients. 3. When adversed reaction of Benzodiazepine is occured, it could be cared effectively with benzodiazepine antagonist, named Flumazenil.

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The Effect of Exhalation Breathing Exercise on Respiratory Synergist Muscle Activity and Pulmonary Functions in Patients with Forward Head Posture

  • Kang, Jeong-Il;Jeong, Dae-Keun
    • The Journal of Korean Physical Therapy
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    • v.28 no.2
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    • pp.149-154
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    • 2016
  • Purpose: The aim of this study is to suggest an intervention method for clinical use in the future by analyzing the effect of breathing exercise on activity of sternocleidomastoid muscle and scalenus anterior muscle, which are respiratory synergist muscles, and pulmonary functions in patients with forward head posture. Methods: Prior to the experiment, 12 patients (experimental group) performed feedback exhalation exercise along with conventional deep neck exercise, and 11 subjects (control group) performed feedback deep neck exercise along with conventional deep neck exercise. The intervention programs were performed for 40 minutes once a day (three times a week for four weeks). Results: Before intervention, %RMS was measured for surface electromyography (sEMG), and FVC, FEV1, and FEV1/FVC were measured using a spirometer. After four weeks, these items were re-measured under the same condition and analyzed. In within-group comparison of the experimental group, activity of sternocleidomastoid muscle and scalenus anterior muscle showed a significant decrease (p<0.05)(p<0.001), and forced vital capacity (FVC) showed a significant increase (p<0.05). In within-group comparison of the control group, activity of sternocleidomastoid muscle and scalenus anterior muscle showed a significant decrease (p<0.05), and in between-group comparison, there were significant differences in activity of sternocleidomastoid muscle and FVC (p<0.05). Conclusion: Long-term forward head posture restrains exercise performance of the neck and leads to exercise avoidance of the neck during daily activities, thus restraint factors might be created even while breathing. To cut off this link, a constant effort is required and diversified research on the correlation between neck functions and breathing should be conducted.