• 전기의세계
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• v.24 no.5
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• pp.53-56
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• 1975

선박에 본격적으로 자동화시스템이 채용되게 된 것은 1960년대의 일로서 주기관을 Bridge에서 직접 제어하는 방식을 채용하고 기관실에도 Control Room을 만들어 주기 및 보기등의 원격제어와 집중감시를 Control Console에서 가능하도록 하게 함으로써 발전하기 시작하였다. 세계무역량의 증가로 인한 선복량의 증가와 선원의 부족현상은 선박에도 고도의 자동화를 요구하게 되었고 선진조선국들은 선박자동화의 기술개발에 힘써 현재에는 각국의 선급협회들도 모두 기관실무인화에 관한 규격을 제정하여 이에 합격한 선박에 대해서는 부호들을 붙여주고 있다. 이와같이 기관실무인화는 자동화기술을 집대성한 것이라고 말할 수 있지만 최근에는 기술적으로 더욱 1보 전진하여 선박에 Computer를 탑재하고 기관의 자동화뿐만 아니라 항법과 선체 및 의장계통에까지 광범위하게 응용하기에 이르렀으며 실험단계를 거쳐 세계각국에서 실적선들이 출현하게 되었다.

• 연구논문집
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• s.27
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• pp.127-139
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• 1997

Two-for-one twister is a kind of textile machine and makes special fancy yarn which is twisted two times per one revolution in order to increase tensile strength and wear resis-tance of yarn. Spindle mechanism has to be stable and continuous motion in high speed revolution, and then optimal design is necessary to analyze dynamic characteristics of spindle unit. Spindle unit is consist of blade and rotary disc that are cylindrical body of revolution. For analysis of the dynamic characteristics of spindle unit, transfer matrix method is used and a numerical code SPINDLE also. Torsion and natural bending frequency of the spindle unit are examined. Its displacement mode is studied in function of variable revolutions.

• Nuclear industry
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• v.26 no.4 s.278
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• pp.85-103
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• 2006

국제원자력규제자협의회(INRA) 정식 가입/ "원자력 기술 주도국으로 부상"/ "방패장 건설 사업 착실히 추진"/ 방폐장 처분 방식 "객관적이고 투명하게"/ 인도네시아 국회의장 고리 원전 방문/ 세계 원자력 안전 전문가들 한 자리에/ 아시아 태평양 지역 17개국 원자력 협력 토의/ 국제핵융합실험로(ITER) 공동이행협정문서 최종 확정/ 한 · IAEA, 원자력방호기술 향상 방안 협의/ 울진 원전 6호기 리스크 정보 활용 정기 검사 수행/ IAEA, 국내 원전 안전 점검 협의 위해 방한/ 중국 원전 기술단 방한/ 울진 원전 총발전량 4천억kWh 돌파/ 원전 안전 관리 실태 불시 점검 결과 양호/ '핵융합연구센터' 공식 출범/ 핵융합에너지개발진흥법 제정을 위한 공청회 개최/ 제9차 한-미 안전조치 기술협력 회의 개최/ 개량핵연료 'PLUS7' 첫 상용화/ 베트남 원자력 협력 강화 워크숍 개최/ "2015년엔 세계 최우수 발전회사"/ 'APR1400'중국에 적극 홍보/ 한수원, 협력기업에 500억원 지원/ "한국 원자력 도입 경험 배우겠다"/ 방사선원 사고 대비 예방 안전 체계 구축/ "한수원 신용 등급 A+"/ 울진 6호기 '첫번째' 계획 예방 정비착수/ '2006 원자력 체험전' 개최/ 원자로 내부 이물질 감시 시스템 개발/ 월성 3호기 정비 완료, 발전 재개/ IAEA안전조치이행자문단 월성 원전 방문/ 제11회 원자력안전기술정보회의 개최/ 월성 1호기 방사능 방재 전체 훈련 실시/ (주)선바이오텍, 첫 '연구소 기업' 공식 승인/ 방사선원 안전성 향상 워크숍 개최/ 양성자 가속기 사업 본격 궤도에/ 스웨덴 프로스마르크 원전 관계자 방한/ "방폐장 유치한 성숙한 시민 의식 감탄" / "올해는 혁신을 체질화하겠다"/ KAERI, 연구윤리위원회 발족/ 2005년 지식 활동 우수 그룹 포상/

• Journal of the Society of Naval Architects of Korea
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• v.31 no.3
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• pp.19-30
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• 1994

The modeling of a product data is becomming more and more important in engineering environment, especially for the development of CAD/CAM system as a basis of computer integrated manufacturing system. Model is a formalized representation of the real world, and modeling is the task to identify, abstract, and formalize the product information into an unambiguous representation. In this study, the piping system, one of typical product of ship outfitting system, is modeled. The STEP idea is followed to provide a common mechanism to represent the product information throughout the life-cycle, and the object oriented paradigm is used in the analysis and design of the model. The definitions given within this model are independent of the specific application domain so that the same methodology can be used for other purpose.

• Convergence Security Journal
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• v.13 no.5
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• pp.67-75
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• 2013

South Korea suggest that the United States government should delay the date to hand over wartime operational control (OPCON). It is fixed on December 1, 2015. Typically the president's position as head of the executive authority is coming from the Commander-in-Chief of the Armed Forces. Now we should know the commander-in-chief of the nation's forces and the meaning of OPCON. The relationship between sovereignty and the commander-in-chief of the nation's forces is a little different. This is one of the efforts to enlarge the efficiency of Armed Forces. Of course, operational control is little control of the sovereign personnel, logistics, administration, discipline, organizing, training, etc. It does not control all matters. The current ROK Combined Forces Command itself is made with reference to the North Atlantic Treaty Organization(NATO). If we insist our own sovereignty is infringed because of OPCON, that claim is coated in irreparable damage to the national interest.

• Korean Journal of Heritage: History & Science
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• v.54 no.4
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• pp.152-173
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• 2021

The Large Banner was introduced during the Japanese Invasions of Korea with a new military system. It was a flag that controlled the movement of soldiers in military training. In addition, it was used in other ways, such as a symbol when receiving a king in a military camp, a flag raised on the front of a royal procession, at the reception and dispatch of envoys, and at a local official's procession. The Large Banner was recognized as a symbol of military dignity and training rites. The Large Banner was analyzed in the present study in the context of two different types of decorations. Type I includes chungdogi, gakgi and moongi. Type II includes grand, medium, and small obangi, geumgogi and pyomigi. Each type is decorated differently for each purpose. The size of the flag is estimated to be a square of over 4 ja long in length. Flame edges were attached to one side and run up and down The Large Banner used the Five Direction Colors based on the traditional principles of Yin-Yang and Five Elements. The pattern of the Large Banner is largely distinguished by four. The pattern of large obangi consists of divine beasts symbolizing the Five Directions and a Taoism amulet letter. The pattern of medium obangi features spiritual generals that escort the Five Directions. The pattern of small obangi has the Eight Trigrams. The pattern of moongi consists of a tiger with wings that keeps a tight watch on the army's doors. As for historical sources of coloring for Large Banner production, the color-written copy named Gije, from the collection of the Osaka Prefect Library, was confirmed as the style of the Yongho Camp in the mid to late 18th century, and it was also used for this essay and visualization work. We used Cloud-patterned Satin Damask as the background material for Large Banner production, to reveal the dignity of the military. The size of the 4 ja flag was determined to be 170 cm long and 145 cm wide, and the 5 ja flag was 200 cm long and 175 cm wide. The conversion formula used for this work was Youngjochuck (1 ja =30cm). In addition, the order of hierarchy in the Flag of the King was discovered within all flags of the late Joseon Dynasty. In the above historical study, the two types of Large Banner were visualized. The visualization considered the size of the flag, the decoration of the flagpole, and the patterns described in this essay to restore them to their original shape laid out the 18th century relics on the background. By presenting color, size, material patterns, and auxiliary items together, it was possible not only to produce 3D content, but also to produce real products.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.33 no.1
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• pp.31-40
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• 2015

This study aims to comprehend that Seokpajeong garden for aspect of space change. Spatial characteristics according to the transfer of ownership are classified as period. And investigate the aspect of space change in Seokpajeong garden based on literature and painting, newspaper, photo. The results were as follows. First, Investigate the construction and change of Seokpajeong garden. Accordingly, spatial characteristics of Seokpajeong garden are classified into three period. 1st period is Kim-Heung Keun owned Samgyedong-jungsa garden. 2nd period is Daewongun hold Seokpajeong garden. 3rd period is damaged original form of Seokpajeong garden from Korean War to current time inclusive. Secondly, Kim-Heung Keun owned Samgyedong-jungsa garden has characteristics of water system centric space and many buildings. In addition accept foreign culture like chinese pavilion and Byeoldang Villa. and plant unique flower and leaf in garden. Thirdly, According to Seokpajeong garden folding screen, Daewongun owned Seokpajeong garden accept organization of space in Samgyedong garden. But different locations of Sarangchae in folding screen means possibility of move building to current position. So, additional historical research is required with representation of chinese pavilion location. Fourthly, Seokpajeong garden was damaged from original form to frequent changes of ownership. Transform of geographical features and water system as well as Anchae and Sarangchae, back side of a outbuilding are only the remained among many buildings. Also, Seokpajeong garden is more fell to the subsidiary facility of Seoul Museum than Wonrim. Therefore restoration and recovery of original form are urgent.

• Journal of Conservation Science
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• v.30 no.3
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• pp.317-327
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• 2014

Iron objects excavated from the sites of Mahan and Baekje are dominated by swords, spearheads and arrowheads. Spearheads usually have a function of weapon and swords with ring pommel are considered fancy articles because of ornament in ring pommel. In Gongju Suchon-ri site, the central type and the local type of the Baekje tombs co-exist together. The sword with ring pommel, the long sword and spearheads were excavated. They are investigated metallurgically and we focused of their functions and manufacturing techniques. Solid carburizing technology and quenching of heat treatment applied the sword with ring pommel was presumed as fancy article in the late 4th century while these techniques didn't apply spearhead from same tomb. This informed that the central government of Baekje had high technology on iron manufacture in 4th century. In case of local gentry, they didn't apply this high technology to mass-produced spearheads, even though they had it. Thus, it is able to say the sword with ring pommel was applied techniques of the central government and spearheads, the weapons were applied techniques of local societies.

• Fashion & Textile Research Journal
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• v.13 no.1
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• pp.32-43
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• 2011

This study investigate the transition about Japanese national costume kimono. The prototype of the present kimono is a kosode. The origin of kosode dates back to the mid-Heian period, when this type of kimono served as the everyday wear of commoners and an undergarment for court nobles, both men and women. In the Muromachi period, particularly after the Onin war, the kosode began to be by people of all classes. In the Muromachi period, kosode consisted mainly of woven textiles. In the Momoyama period, kosode became very elaborate, employing such various techniques as tie-dyeing, embroidery, metallic leaf(surihaku) and free-hand painting. These were further combined resulting in such techniques as tsujigahana dyeing and nuihaku, which are now considered to epitomize Momoyama-period textile design. A category of kosode of the early Edo period, known as Keicho kosode, is fashioned mainly from black, white, or red figured satin(rinzu), or from figured satin segmented in these three colors. Books of kosode designs began to be published in the Kambun era, when the merchant class was becoming economically powerful, kosode began to reflect its taste. During its final stage of development in the late 17th and early 18th centuries, yuzen dyeing achieved wide acceptance. From the late 18th century toward the early 19th century, kosode worn by the merchant class underwent drastic changes, while those worn by the samurai class changed little. In the after the late 18th century, clear differences in design and decorative methods appeared between the kosode worn by rich merchants and those worn by middle and lower class merchants.

• Journal of Korean Orthopaedic Sports Medicine
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• v.2 no.1
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• pp.62-70
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• 2003

Purpose: We examined the kinematics and kinetics of the shoulder in youth baseball pitchers in light of the mechanisms of development of little league shoulder and humeral retrotorsion. Materials and Methods: The joint kinematics and the net force and torque acting on the humerus were calculated in fourteen youth pitchers throwing in a simulated game. Results: The major force component acting on the humerus was a tensile force of 378$\pm$81 N that peaked just after ball release. The predominant torque on the humerus was an external rotation torque about the long axis of the humerus. This torque reached a peak value of 35.3$\pm$6.7 Nm about 73$\%$through the pitching motion. This torque is approximately 66$\%$ of the torque required to fracture of the adult humerus. Conclusions: The direction of the humeral torque was consistent with the development of increased humeral retrotorsion in the throwing arm. Shear stress arising from the high torque during the late cocking phase likely leads to deformation the relatively weak proximal humeral epiphysis. The external rotation torque applied to the humerus during the pitch also agrees with the proposed mechanism for development little league shoulder, which has been hypothesized to be due to rotational stresses acting on the epiphysis during the throwing motion.