태권도 수련복의 변천과정에 관한 고찰

윤상화,권관배 龍仁大學校 1998 용인대학교 논문집 Vol.16 No.-

The purpose of this inquiry is to understand the changing process of Tae-Kwon Do uniform by After thorough examination, they could be summarized as below. Tae-Kwon Do training uniforms are divided into two different types. One is a spread extended type which originally came form Japan and the other is an Korean traditional martial arts uniform. As the development of Tae-Kwon Do occurred, the uniform changed into a basic clothing form from the three countries period which included a black collar and a half black and red collar for grade holders. The differences in the length of sleeves and pants come from which material it is made of and a statement regulated by the Korea Tae-Kwon Do Federation. The uniform currently using is not the Korean traditional type which has to be worn over the head. This has a major disadvantage when putting it on and taking it off, it ruins the hair especially after sweating a lot through training. As a result, the uniform we are currently wearing has a slight problem in practicality and the historical background but the uniform itself is rogarded more as a sport uniform rather than a training uniform.

다공성 세라믹에 의한 중금속 이온의 흡착거동에 관한연구

윤동준,권이열,홍성자 漢陽大學校 環境科學硏究所 1989 環境科學論文集 Vol.10 No.-

본 연구는 다공성 세라믹을 이용하여 수용액중의 중금속 이온(Cu(Ⅱ),Pb(Ⅱ)의 흡착특성을 회분석(Batch Test) 실험으로 고찰하였다. 다공성 세라믹(porous ceramics)의 흡착능을 비교하기 위하여 Sand와 활성탄(Activated Carbon)을 비교흡착제로 사용하였으며, 실온에서 중금속 이온농도가 20mg/ι인 용액 50ml에 대하여 pH(2.0±0.5, 3.0±0.5, 6.0±0.5), 접촉시간(0.5hr, 1hr, 2hr,3hr) 및 흡착제양을 변화시키면서 각 인자에 대한 특성을 관찰하였다. 흡착제양이 4.0g이고 접촉시간이 3hr, pH6.0±0.5일 때 Sand는 Cu(Ⅱ), Pb(Ⅱ) 및 Zn(Ⅱ)의 제거율이 7.8%, 18.6% 및 7.1%로 나타났다. 활성탄 (0.3g)은 Cu(Ⅱ), Pb(Ⅱ) 및 Zn(Ⅱ)의 제거율이 99.5% , 99.5% 및 73.8%로 나타났다. 이에 대하여 다공성 세라믹은 Cu(Ⅱ)가 97.8%, Pb(Ⅱ)가 99.0% over 및 Zn(Ⅱ)가 38.3%로서 Cu(Ⅱ)와 Pb(Ⅱ)에 대하여 좋은 제거율을 보였다. This investigation was carried out to study on the sorption characteristics of heavy metallic ions (Cu(Ⅱ), Pb(Ⅱ), Zn(Ⅱ)) by porous ceramics in batch type experiment. To compare the sorption ability of porous ceramics, sand and activated carbon were used as comparative adsorbents. At room temperature the sorption characteristics were observed by factors-pH(2.0±0.5, 3.0±0.5, 6.0±0.5), contact time(0.5hr, 1hr, 2hr, 3hr), amounts of adsorbents for 50ml solution of 20mg/ιof each heavy metallic ions.

당류 첨가가 김치 성분 및 관능검사에 미치는 영향

권동진,장영상,조길석,강윤한 한국식품영양학회 1999 韓國食品營養學會誌 Vol.12 No.6

김치의 단맛을 내기 위하여 일반 제조에 이용되고있는 sucros 대신 xtevioside나 sorbitol과 같이 당의 종류를 달리하여 제조한 김치의 이화학적 성분, 미생물의 변화 및 관능적 특성에 미치는 영향을 조사하였다. pH와 적정산도는 stevioside와 sorbitol이 첨가된 처리구가 sucrose가 첨가된 처리구보다 산의 생성 억제 효과가 있는 것으로 나타났다. 총균수의 경우 전반적으로 당의 종류와 저장온도와는 관계없이 미생물의 생육 억제효과가 없는 것으로 나타났으나 젖산균의 경우 10℃에서는 균의 생육 억제 효과는 없는 반면 5℃에 저장한 김치의 경우 stevioside와 sorbitol이첨가된 김치는 젖산균의 생육에 억제효과가 있는 것으로 나타났다. 관능검사를 실시한 결과 stevioside 첨가된 김치 sucrose 첨가구에 비하여 기호도에서는전적으로 우수한 것으로 나타났다. Effects of sugars addition in Kimchi preparation on physiochemical characteristics, sensory evaluation of Kimchi were investigated. Sugar sources added were sucrose, stevioside and sorbitol. Changes of pH and titratable acidity in Kimchi with addition of stevioside or sorbitol were similar to ones of control Kimchi with addition of sucrose during storage at 10℃, while ones of Kimchi with addition of stevioside or sorbitol were different from control during storage at 5℃, Comparison with control Kinich, addition of stevioside or sorbitol was inhibited acid production in Kimchi during storage at 5℃. Total number of viable cells were not significantly different among those of Kimchi samples during storage at 5 and l0℃ The number of lactic acid bacteria were not significantly different among those of Kimchi samples during storage at 10℃, but ones of Kimchi with addition of stevioside or sorbitol were less than those of Kimchi with addition of sucrose during storage at 5℃. Among sweetness, taste, flavor, color, texture and overall acceptability, the results of sensory evaluation except sweetness were showed that Kimchi added with stevioside or sorbitol was superior to ones added with sucrose.

工業敎育大學의 實驗實習施設 共同活用 및 運營에 關한 硏究

尹錫天,牟相榮,權五憲,千炳善,周赫鍾,李永臣,金健中,羅聲雄,洪錫雨,吳德成,盧泰天 충남대학교 공업교육연구소 1983 論文集 Vol.6 No.2(A)

The College of Engineering was specialized to have a sole function for supplying technical high school teachers in 1977 and referred to as the College of Industrial Education according to the Government's policy. The economic impact mainly due to the oil-crises caused a severe problem to this college, namely discrepancy of supply to demand scale. Accordingly the number of student enrollment was to be fluctuated from 479 in 1979 through 800 in 1979 and 900 in 1980 to 430 in 1981. And the engineering departments have been attached to this Engineering Education College since 1981. These circumstanses met singnificant inefficiency in facility operation. This program aims at providing an overall relocation of the college facilities and preparing the practical system to make the joint-operation possible taking into account circulation, academic stream, budget, maintenance, etc. However this study could not get optimal spacing but some trade-off, considering the current situation.

탈석회화골분진과 폴리에틸렌을 이용한 대용골에 관한 실험적연구

권성택,이윤호,김진환 大韓成形外科學會 1993 Archives of Plastic Surgery Vol.20 No.6

Advances in craniofacial surgery have stimulated the interest in physiology of osseous transplantation. Numerous works have been made to understand physiology of bone graft. In the bone graft, many researches have been focused to solve the following problems; First, the shortage of donor site. Second, variable degree of resorption. Third, limitation of shaping of bone graft. This study was undertaken to evaluate the morphogenic properties of bone substitute and its fate after 6 months of implantation to the back of experimental animal. Bone substitutes were prepared by filling of demineralized bone power to the inner space of porous polyethylene block. Size of the porous polyethylene block was 10 ×10 ×7mm and that of inner space was 7 × 7 × 4mm. Experimental group consisted of implantation of bone substitute into the musculatoure of back of adult New Zealand White rabbits. Control groups were divided into 2 groups : namely group 2 which has inner space of porous polyethylene block without demineralized bone powder and group 3 which has neither innerspace nor demineralized bone powder but only porous polyethylene block. Rib bone between each implant was considered as an another group (group 4) for a reference of isotope uptake. ????Tc-MDP uptake and histomarphometric evaluation with light microscope showed induced osteogenesis of demineralized bone powder within the inside of porous polyethylene. At 1 month after implantation, composites didn't make significant difference from control groups. From 2 months to 6 months, radioisotope uptake increased with sharp curve(1.69 at 2 months, 3.35 at 4 monts and 4.53 at 6 months) and number of osteocytes, osteoblasts, chondrocytes and chondroblast also increased with steep line(3.3 at Zmonths, 27.6 at 4months, 95.4 at 6 months), while control groups could not show any evidences of induced osteogenesis and better incorporartion. The results of this study suggested that creation of osteogenic composites of porous materials and osteoinductive bone powder can be one of the rational approach to solve the problems of bone graft.

Paste법에 의한 0.1V강의 침붕처리에 관한 연구

권동일,김강형,김진관,이성훈,윤재홍 國立 昌原大學校 産業技術硏究所 1994 産技硏論文集 Vol.8 No.-

0.1V강의 표면경도를 향상시키기 위해서 Boronizing처리를 실시하여 Hv=1500∼2000의 높은 경도값을 나타내는 붕화물층을 얻었다. 붕화물층의 두께와 처리시간과의 사이에는 방물선관계를 나타내었으며 붕화물층 생성 겉보기 활성화에너지는 94kJ/mol이다. 또한 900˚C, 3시간 침붕처리했을 때가 가장 높은 경도분포값을 나타내었으며 그 이상 장시간 처리하면 오히려 경도가 감소하는 경향을 나타낸다. 그리고 침붕층은 20% HCl, 20% H₂SO₄용액에서는 뛰어난 내식성을 가지나, 20% HNO₃용액에 대해서는 상대적으로 내식성이 떨어졌다. 그리고 내고온산화성은 대기중 800˚C까지는 침붕처리한 시편이 우수했으나 900˚C부터는 오히려 감소했다. To improve the surface hardness of the 0.1V steel, by Boronizing Treatment, We got boride layer showing high hardness, Hv=1500∼2000. A parabola relationship was appeared between boride layer thickness and treatment time, and apparent activation energy to form the boride layer 94kJ/mol. Moreover, We obtained the most high hardness distribution value when had the boronizing treatment for 3 hours at 900˚C. On the contrary, If we did boronizing treatment above 3 hours, the hardness appeared decreasing tendency. The boride layer had a good corrosion resistance at a solution of 20% HCl and 20% H₂SO₄, but correlatively the corrosion resistance of the boride layer was declined at a solution of 20% HNO₃. And the boronized specimen had a good high temperature oxidation resistance until 800˚C in the atmosphere but the high temperature oxidation resistance go down above 900˚C.

야간교대근무적응에 있어서 광노출의 효과

윤인영,권기범,강상범 용인정신의학연구소 1999 용인정신의학보 Vol.6 No.1

흰쥐 경동맥 풍선손상 모델에서 리포좀 전달체를 이용한 에스트로겐의 국소전달 효과

윤영섭,장양수,정광회,박요석,김형관,강웅철,권진욱,정보영,조상호,김성순 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.8

흉막삼출의 유무에 따른 쯔쯔가무시증 환자간의 비교

권세훈,김형호,강지인,하재하,한경택,이재록,김동민,권용은,윤성호,이승일 朝鮮大學校 附設 醫學硏究所 2007 The Medical Journal of Chosun University Vol.32 No.1

Scrub typhus is a potentially fatal infectious disease caused by the organism Orientia tsutsugamushi. Clinical manifestations are fever, skin rash, eschar and varying degree of respiratory distress. The pleural effusion in scrub typhus is rare and secondary to the destruction of vascular endothelium. Because the respiratory symptoms are generally mild and the pleural effusion in scmb typhus is rare than in interstitial pneumonia, there are few comments about the characteristics of scmb typhus with pleural effusion. So we made the comparative study of scmb typhus patients between with pleural effusion and without pleural effusion. 연구배경 치명적일 수 있는 감염질환 중 하나인 쯔쯔가무시중(Scrub typhus)에서 드문 흉막삼출을 동반한 환자에 대한 고찰은 다른 문헌에서도 자주 언급되지 않았다. 따라서 본 저자들은 흉막삼출이 있는 경우와 없는 경우에 따른 쯔쯔가무시중 환자들을 비교하고자 하였다. 방법 2003년에서 2006년까지 조선대학교 병원 내과에 입원중인 환자 중 쯔쯔가무시중 진단을 받은 총 109명의 환자를 대상으로 하여 흉부 X선 검사 및 혈청학적 검사(CPK, LDH, ESR, CRP, AST, ALT, ADA), 혈액학적 검사(WBC, PLT) 및 백분율 검사등을 실시하였다. 결과 흉막삼출이 있는 환자들의 경우 흉막 삼출이 없는 환자들에 비해 ESR 수치가 통계학적으로 의의있게 높았다(p-vaule < 0.05). 결론 흉막삼출 유무에 따른 쯔쯔가무시중 환자간의 비교에 있어 ESR 수치가 통계학적인 의의를 가졌다.

후방복사된 초음파를 이용한 12Cr강 부식 피로특성 평가

권성덕,윤석수,송성진,배동호 한국비파괴검사학회 2000 한국비파괴검사학회지 Vol.20 No.5

화력발전 플랜트의 터빈 블레이드(blade) 재료인 12Cr 합금강의 고속 열화 시편에 대한 레일리(Rayleigh) 표면탄성파의 산란과 속도의 주파수 의존특성을 액체/고체 경계 면에서 표면파의 발생기구에 의해 나타나는 후방복사 초음파 세기의 입사각 의존성으로 간접 평가하고 부식피로 특성과 비교 분석하였다. 후방복사 현상이 발생하는 입사각 폭은 부식온도와 반비례하였으며 이는 효과적 부식층의 두께 증가로 설명되었다. 이 프로파일의 폭은 피로시험에서 균열성장 관계식인 파리스(Paris) 법칙의 지수 m과 선형적으로 반비례하여 열화시편의 부식 피로 특성의 비파괴적 평가에 있어 후방복사된 초음파를 이용한 기술이 매우 유용함을 보여주었다. The corrosion-fatigue characteristics of the 12Cr steel, which is widely used in fossil power plants as a turbine blade material, are evaluated nondestructively by use of the Rayleigh surface wave. In this study, the frequency dependency of the Rayleigh surface wave is investigated indirectly by measuring the angular dependency of the backward radiation of the incident ultrasonic wave in the aged specimens, and then compared to the corrosion-fatigue characteristics. The width of the backward radiation profile decreases as the increase of the aging temperature, which seems to result from the increase of the effective degrading layer thickness. This parameter also shows an inversely proportionality to the exponent, m, in the Paris law which predicts the crack size increasement due to fatigue. The result observed in this study demonstrates high potential of the backward radiated ultrasound as a tool for the nondestructive evaluation of the corrosion-fatigue characteristics of the aged materials.