• The Journal of Korean Physical Therapy
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• 제14권4호
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• pp.423-440
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• 2002

The purpose of this study is to investigate the conception and developmental process of stretching in sports physical therapy. This study is to find conception of stretching, feature and effect, principles and fundamental rule, consideration of enforcement and developmental process in order to use the basic material which is very helpful in the every field and the scene of sports needing stretching. Flexibility is the ability to move muscles and joints through their full ranges of motion. Flexibility is developed by stretching. About player who insufficiency of flexibility, patient and disabled person who restrict of range of motion, older adult who reduce of flexibility, promote of flexibility for upgrading stability and efficiency of body on the based of scientific principles is completed by stretching. The method of stretching has been developed with passive stretching, CR, PNF stretching, PIC stretching, MET stretching in the order. The effects that we can get through stretching are as follows : 1. Enhance physical fitness. 2. Optimize learning, practice and performance of many types of skilled movement. 3. Increase mental and physical relaxation. 4. Promote development of body awareness. 5. Reduce risk of joint sprain or muscle strain. 6. Reduce risk of back problem. 7 Reduce muscular soreness. 8. Reduce the severity of painful menstruation for female athletes. 9. Reduce muscular tension. 10. Advance recognition of body.

• 지적과 국토정보
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• 제45권1호
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• pp.59-74
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• 2015

본 연구는 남북한 통일을 대비하여 준비하고 있는 과제 중 북한지역에 있는 토지에 대한 관리 및 운영 실태를 파악하여 북한지역의 사회적 혼란과 경제적 손실을 최소화하고 주민의 기본적인 삶의 보장과 사회보장, 생활의 계속성 유지 등 북한 주민들의 인간다운 생활 안정화를 위하여 토지처리 방안을 제시하고자 한다. 따라서 북한 지역의 토지 처리방안으로 전(前) 소유자에 대한 소유권을 인정하지 않고 재국유화하여 통일 후 일정기간 동안은 토지 소유권을 국가가 보유하고 현재 점유, 이용하고 있는 토지는 북한 주민에게 분배하여 토지이용권을 설정해주고 이후 사(私)토지소유권으로 전환될 수 있는 방향으로 개편하여 사용권을 점진적으로 사유화하는 방안을 제시했다.

• 한국표면공학회:학술대회논문집
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• 한국표면공학회 2016년도 추계학술대회 논문집
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• pp.97-97
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• 2016

Development of advanced Li-ion battery cells with high durability is critical for safe operation, especially in applications to electric vehicles and portable electronic devices. Understanding fundamental mechanism on the formation of a solid-electrolyte interphase (SEI) layer, which plays a substantial role in the electrochemical stability of the Li-ion battery, in a cathode was rarely reported unlike in an anode. Using first-principles density functional theory (DFT) calculations and ab-initio molecular dynamic (AIMD) simulations we demonstrate atomic-level process on the generation of the SEI layer at the interface of a carbonate-based electrolyte and a spinel $LiMn_2O_4$ cathode. To accomplish the object we calculate the energy band alignment between the work function of the cathode and frontier orbitals of the electrolyte. We figure out that a proton abstraction from the carbonate-based electrolyte is a critical step for the initiation of an SEI layer formation. Our results can provide a design concept for stable Li-ion batteries by optimizing electrolytes to form proper SEI layers.

• 한국실내디자인학회논문집
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• 제21권6호
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• pp.147-157
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• 2012

This paper aims to examine the fundamental relationship of what principles cause the aesthetic shapes in Korean sarangbang furniture of the $19^{th}$ century. Focusing on the Greimas' isotopic and semantic structure analysis, this research analyzed the traditional Korean men's furniture in four steps; signifier analysis, isotopic analysis, semantic structure analysis, and comprehensive interpretation. The results show that the expressive qualities of sarangbang furniture included visual symmetric aesthetics, and the hues of natural materials with dark tones. The manufacturing process emphasized the characteristics of natural materials; while diversity was respected in decorations, function as restrained form was also important with a concise image. Through these characteristics, sarangbang furniture revealed a balance, a harmony of contrastive elements, and a restrained aesthetics. Within these qualities, it was seen that aesthetic principles, such as "severance and communication," "artifice and nature," "restraint and manifestation," "toughness and softness," "filling and emptying" and "decoration and utility" were in a mutually supplementary relationship. At the basis of this aesthetic thought appears to be Confucianism, which had been the model for seonbi politics and scholarship.

• 비파괴검사학회지
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• 제12권3호
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• pp.7-11
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• 1992

Accurate measurement of green density of compacted part in the powder metallurgy industry is rather fundamental but extremely important process that decide the quality of the sintered part. In case of green sheet P/M product, the green density as well as the distribution of the density must be examined for the same reasons. Currently in most cases, density measuring process is being performed applying conventional Archimedes principles. However this method is not only time-consuming but also often inaccurate because of the inherent nature of the process, such as part sectioning, closing of surface porosity with wax and weighing in air and in water. Therefore, it is necessary to develop a faster and more accurate method to measure the density of green sheet P/M product. In this work, a nondestructive density measurement device using gamma-ray absorption principles was constructed and the optimum condition for measuring green density of P/M sheet and its distribution was sought. The results showed that this method was very effective in terms of measuring time and accuracy.

• Journal of Chest Surgery
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• 제54권4호
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• pp.239-245
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• 2021

Video-assisted thoracoscopic surgery (VATS) has been established as the surgical approach of choice for lobectomy in patients with early-stage non-small cell lung cancer (NSCLC). Patients with clinical stage I NSCLC with no lymph node metastasis are considered candidates for VATS lobectomy. To rule out the presence of metastasis to lymph nodes or distant organs, patients should undergo meticulous clinical staging. Assessing patients' functional status is required to ensure that there are no medical contraindications, such as impaired pulmonary function or cardiac comorbidities. Although various combinations of the number, size, and location of ports are available, finding the best method of port placement for each surgeon is fundamental to maximize the efficiency of the surgical procedure. When conducting VATS lobectomy, it is always necessary to comply with the following oncological principles: (1) the vessels and bronchus of the target lobe should be individually divided, (2) systematic lymph node dissection is mandatory, and (3) touching the lymph node itself and rupturing the capsule of the lymph node should be minimized. Most surgeons conduct the procedure in the following sequence: (1) dissection along the hilar structure, (2) fissure division, (3) perivascular and peribronchial dissection, (4) individual division of the vessels and bronchus, (5) specimen retrieval, and (6) mediastinal lymph node dissection. Surgeons should obtain experience in enhancing the exposure of the dissection target and facilitating dissection. This review article provides the basic principles of the surgical techniques and practical maneuvers for performing VATS lobectomy easily, safely, and efficiently.

• 기록학연구
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• 제1호
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• pp.7-22
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• 2000

It is almost impossible to fulfill the users' information needs efficiently without any finding aids. The idiosyncrasy of archival materials had led the archivists to develop their own descriptive rules until the mid of 1980s. It was the arrival of computers and information networks that stimulated the archival community to standardize its variant descriptive practices. The primary purpose of the national and international archival description standards is to facilitate the cooperative archival data exchange. The Ad Hoc Commission on Descriptive Standards of the International Council on Archives adopted ISAD(G) and ISAAR(CPF) in 1993 and in 1995 respectively. ISAD(G) guides the formulation of information in each of 26 elements that may be combined to constitute the description of an archival entity. ISAAR(CPF) is to give general rules for the establishment of archival authority records in descriptions of archival documents. Histories, structures and fundamental principles of those two international archival standards have been studies in this article. Most of the present archival description standards are based on the principle of provenance and the authority model. The instability of modern organizations and the digitalization of record keeping systems have been making the archivists to review these basic archival principles. It is suggested that Korean archival community should attempt to draft a national archival descriptive standard suitable to the Korean archival practice and Korean language in the framework of the international standards.

• 한국사회복지학
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• 제64권3호
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• pp.203-229
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• 2012

본 연구는 복지와 노동의 통합을 지향해온 근로연계복지의 문제점들을 사회복지와 노동시장의 충돌이라는 관점에서 종합적으로 재조명한다. 특히 본 연구는 자활사업의 사례를 중심으로, 근로연계복지에 내재한 사회복지와 노동시장 사이의 딜레마를 (1) 사업의 목표(복지사업과 영리사업 사이의 딜레마); (2) 급여의 성격(복지혜택과 노동임금 사이의 딜레마); (3) 정책의 대상(집단과 개인 사이의 딜레마); (4) 실무자의 역할(사회복지종사자와 사업경영자 사이의 딜레마)라는 네 차원에서 살펴본다. 이를 통해 지금까지 행정적 제도적 차원에서 논의되어왔던 자활사업의 문제들이 사실 서로 상충하는 체계인 사회복지와 노동시장의 작동원리를 사회공학적으로 결합시키려 하면서 발생한 필연적 부작용이라는 점을 지적하고자 한다. 따라서 자활사업의 여러 문제점들을 해결하기 위해서는 제도적 개편방안만이 아니라, 근로연계복지의 작동원리에 대한 보다 본질적인 성찰이 요구된다는 점을 강조하고자 한다.

• 무역상무연구
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• 제51권
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• pp.159-185
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• 2011

This paper is intended to discuss the controversial issue of the principles of change circumstances under the legal system of international commercial transactions. The principles of change circumstances, so called clausula rebus sic stantibus is the legal doctrine allowing for treaties to become inapplicable because of a fundamental change of circumstances. It is essentially an "escape clause" that makes an exception to the general rule of pacta sunt servanda (promises must be kept). The practical needs of international transactions differ from the established concepts of national contracts law. The purpose of this paper is to analyze the legal system and theories under the regimes of international commercial transactions such as the CISG, the PICC, and the PECL. Clausula rebus sic stantibus does not apply if the parties to a treaty had contemplated for the occurrence of the changed circumstance. It only relates to the changed circumstances that were never contemplated by the parties. This paper has shown that the hardship provisions in the CISG, PICC, PECL has similarities to each a validity defense and an excuse defense. it was provisions that CISG governs this issue in Article 79, PICC Article 6.2.1, 6.2.2, 6.2.3(in addition to Article 7.1.7), PECL Article 6.111(in addition to 8.108). It is time when we should reconsider its legal system with great interest in order to harmonize with the international standpoint. It will be the turning point of our viepoint under the international commercial transactions.

• 동의생리병리학회지
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• 제24권6호
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• pp.911-920
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• 2010

The basic principles in the "Spleen-stomach theory(脾胃論)" sets up the phases and roles of spleen-stomach (脾胃) by establishing Earth(地 坤 土) and exposing the reality of spleen-stomach(脾胃) of human body which has its own shape and form with Heaven's reality exhibited. The meaning of Earth is based on the constant meaning of Earth in 'Earth Original-Earth as extended and stable ground(坤元一正之土)' giving form and shape, and Earth's movement with circulation, then exposes itself as 'Earth as plowing land(耕種之土)' concerning both the application of Five Phases and the physical characteristics of Earth. The Yin-Yang recognition on Earth is revealed as Yin Earth(陰土)-Yang Earth(陽土). Spleen(脾) was established as Yin Earth(陰土) and Stomach(胃) as Yang Earth(陽土). The seasonal assignment of Earth is Indian Summer(長夏), which is divided from Summer, and becomes Heat(熱), and the Yin-Yang recognition of Earth comes to be the meaning of the center and border. According to the Five Phasic recognition, it becomes Earth(土) and gets to be Dampness(濕) in accordance with Six Qi(六氣). 'Extreme Yin(至陰)' indicates Qi's status exposing the fundamental meaning regarding the role of creating, changing, and propelling Spleen-Stomach(脾胃) as a characteristic Yin Earth. Earth comprehends 'Four Courses(四維)' meaning, recognizes them as four parts of the 12 Earth's Branches(辰戌丑未) and the terminals of four seasons(四季之末), and has the meaning of the president of the change in four seasons. The theory of principle in the "Spleen-stomach theory(脾胃論)" stands on the basis of the 'Form Qi theory(形氣論)' and that of 'Upbearing, Downbearing, Floating, and Sinking theory(升降浮沈論)'. It manifests the theory of movement in the interaction between Form(形) and Qi(氣), and 'Qi Interior Form Exterior(氣裏形表)' indicates that Qi(氣) moves interiorly and Form(形) exteriorly.