http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Start와 Finish의 姿勢變化에 따른 競技記錄에 관한 硏究
任敬淳,吳賢煥 단국대학교 1978 論文集 Vol.12 No.-
In our country scientific development in skiing and ski racing technique is still at an insignificant level. But we can attain remarkable development through participating in international games and training in foreign countries. At present, materials necessary for improving the quality of racers depends largely upon foreign sources, and as indicated in the introduction of this research paper, we have many areas in which to improve, which must be done gradually through a program of comparing results of tests made on competent racers. In this research I have reached the the following conclusions: Ⅰ. In comparing starting forms for skiers, it is profitable to start with a kicking action rather than in the crouching form. Ⅱ. In the case of skilled racers, records are more shortened the more the racer kicks However, in the case of female racers it is more profitable to start in the crouching position because of their general lack of power and technique. Ⅲ. In the finishing forms we can estimate the racers ability through various tests, and through the results of these tests each racer can be able to select a most desirable form, for the racer who is inexperienced often perform svarious unnecessary actions and as a result falls into unstable condition. Along with the improvement of technique, first of all each racer has to also const ntantly work towards increasing physical strength if the described techniques are to be effective.
일정축력 및 반복 횡하중을 받는 철골철근콘크리트 기둥의 내력과 변형성능
정수영,연길환,임경택,윤석천,한병찬 忠南大學校 産業技術硏究所 1995 산업기술연구논문집 Vol.10 No.2
An experimental investigation was conducted to investigate the strength and deformation capacity of Wide Flange Steel Encased Reinforced Concrete(SRC) Columns subjected to constant axial compression and cyclic lateral loading conditions. Six one-third scale specimens were tested, each consisting of a structural steel size encased in reinforced concrete. The parameters studied in the test program included the effects of B/t ratios of encased steel(=13, 18, 23), ratios of axial force(=1/3, 1/6). As a result, capacity prediction based on superimposing the moment-axial-load interaction surfaces of the steel shape and reinforced concrete produced good results; the average of the experimental-to-predicted capacity ratio being equal to 0.99∼1.20. The observed hysteretic behavior of the test specimens indicated that adequated ductility can be achieved and the concrete core must be inhibited to buckling of wide flange.
금속-도재 수복물에서 비귀금속 합금의 재사용에 따른 결합강도에 관한 연구
임시덕,이은경,장기환 한국위생과학회 2001 한국위생과학회지 Vol.7 No.2
치과용 비귀금속 합금 중 Verabond와 RecilliumⅢ,Ⅴ를 사용하여, 새 금속만 사용한 group(Ver-1, Rex3-1, Rex5-1)과 재사용한 group(Ver-2, Rex3-2, Rex5-2)의 경도측정을 한 결과 새금속만을 사용한 group에서는 Ver-1이 경도측정치가 가장 높았으며, 재사용한 group에서는 Rex5-2가 가장 높은 경도 측정치를 나타내었고 Rex3에서는 Rex3-1과 Rex3-2간의 경도 차이는 없었다. Verabond와 RexolloumⅢ,Ⅴ를 사용한 것과, 새 금속만을 사용하여 Vita Omega Porcelain을 올려서 소성하고, 금속과 도재간의 결합강도를 측정 한 것과, 한번 주조된 비귀금속 합금에 50%의 새로운 합금을 사용하여 Vita Omega Porcelain을 올려서 소성하고, 금속과 도재간의 결합강도를 측정한 결과 재 사용한 금속 중 Rex5-1이 금속과 도재간의 결합강도가 가장 좋은 것으로 나타났고, 주조된 합금에 새 금속 50%를 섞은 group에서는 Rex5-2가 결함강도가 가장 낮은 것으로 나타났다. 그러나 Ver-1과 Ver-2는 금속과 도재간의 결합강도는 큰 차이점이 없는 것으로 보인다. The hardness of non-precious dental alloy was measured using Verabond and Rexillium Ⅲ,Ⅴ, The dental alloy was group into a new alloy group (Ver-1, Rex5-1) and used alloy (Ver-2, Rex5-2). As a result, Ver-1 showed the highest hardness value in a new alloy group. and Rex5-2 showed the highest hardness value in a used alloy group. However, Rex3-1 and Rex3-2 did not show any difference in hardness. The bonding strength between alloys used Verabond and Rexillium Ⅲ,Ⅴ was tested; The bonding strength between porcelain and a new alloy, which was firing after build up weth Vita Omega porcelain; was tested; Also, the bonding strength between porcelain and metal, which was casted and firing after build up with vita Omega pocelain was tested. I this case, the casted alloy was mixed with a new alloy by hay in weight. As a result, Rex5-1 yielded the highest strength among the used alloy group. Rex5-2 was the lowest in bonding strength among the alloy mixed with casted alloy and a new alloy by hay in weight. On the other hand, Ver-1 and Ver-2 did not show apparent difference in bounding strength.
임창규,오경환,정철희,박상철,박재옥,이상주 순천향대학교 1992 논문집 Vol.15 No.2
Congenital sensory neuropathy with anhidrosis(CSNA) is a well-defined entity among a group of sensory deficiency syndromes. The primary clinical features of CSNA are congenital analgesia, which leads to self-mutilation and painless fracture; inability to sweat, which leads to defective thermoregulation; and, finally, mental retardation. Here, we report a case of typical CSNA in 8-month-old male who had unexplained high fever without sweating, self-mutilating his tongue and of his fingers, and mental retardation and was diagnosed by skin biopsy, histamine challange test, and iodine-starch test.
Fracture patterns in the maxillofacial region: a four-year retrospective study
Kyung-Pil Park,Seong-Un Lim,Jeong-Hwan Kim,Won-Bae Chun,Dong-Whan Shin,Jun-Young Kim,Ho Lee 대한구강악안면외과학회 2015 대한구강악안면외과학회지 Vol.41 No.6
Objectives: The facial bones are the most noticeable area in the human body, and facial injuries can cause significant functional, aesthetic, and psy- chological complications. Continuous study of the patterns of facial bone fractures and changes in trends is helpful in the prevention and treatment of maxillofacial fractures. The purpose of the current clinico-statistical study is to investigate the pattern of facial fractures over a 4-year period. Materials and Methods: A retrospective analysis of 1,824 fracture sites was carried out in 1,284 patients admitted to SMG-SNU Boramae Medical Center for facial bone fracture from January 2010 to December 2013. We evaluated the distributions of age/gender/season, fracture site, cause of injury, duration from injury to treatment, hospitalization period, and postoperative complications. Results: The ratio of men to women was 3.2:1. Most fractures occurred in individuals aged between teens to 40s and were most prevalent at the middle and end of the month. Fractures occurred in the nasal bone (65.0%), orbital wall (29.2%), maxillary wall (15.3%), zygomatic arch (13.2%), zygomaticomaxillary complex (9.8%), mandibular symphysis (6.5%), mandibular angle (5.9%), mandibular condyle (4.9%), and mandibular body (1.9%). The most common etiologies were fall (32.5%) and assault (26.0%). The average duration of injury to treatment was 6 days, and the average hospitalization period was 5 days. Eighteen postoperative complications were observed in 17 patients, mainly infection and malocclusion in the mandible. Conclusion: This study reflects the tendency for trauma in the Seoul metropolitan region because it analyzes all facial fracture patients who visited our hospital regardless of the specific department. Distinctively, in this study, midfacial fractures had a much higher incidence than mandible fractures.