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이현기,천영훈,백영석,이혜진,이상열,Lee, Hyun-Ki,Cheon, Young-Hoon,Paik, Young-Suk,Lee, Hye-Jin,Lee, Sang-Yeol 대한불안의학회 2014 대한불안의학회지 Vol.10 No.1
Objective : This study was aimed to discover the correlation between those getting tattoos and their psychopathology relating to their delinquent behavior and emotional problems. Methods : Data for this study was collected from 19-year-old men who were receiving a physical examination for conscription at the Military Manpower Administration. 400 data sheets were collected among them. All of the subjects were evaluated on the following measures : sociodemographic variants, Juvenile delinquency scale, State-trait anger expression inventory, Beck depression inventory, State-trait anxiety inventory, and Positive affect and negative affect schedule. Results : In comparison with those without tattoos, those with a tattoo scored higher in the scales that were related to delinquency, anger, depression, and negative emotion. Furthermore, there were positive correlations between the number of tattoos and the scores for the Juvenile delinquent tendency and behavior scale as well as on the, State-trait anxiety scale. Conclusion : Those with tattoos had experienced anger, anxiety and depression more strongly in comparison with those without tattoos. These results recommend that tattooed males should be evaluated more on their regarding psychopathology compared to those without tattoos.
0.13μm Cu/Low-k 공정 Setup과 수율 향상에 관한 연구
이현기,장의구,Lee, Hyun-Ki,Chang, Eui-Goo 한국전기전자재료학회 2007 전기전자재료학회논문지 Vol.20 No.4
In this study, the inter-metal dielectric material of FSG was changed by low-k material in $0.13{\mu}m$ foundry-compatible technology (FCT) device process based on fluorinated silicate glass (FSG). Black diamond (BD) was used as a low-k material with a dielectric constant of 2.95 for optimization and yield-improvement of the low-k based device process. For yield-improvement in low-k based device process, some problems such as photoresist (PR) poisoning, damage of low-k in etch/ash/cleaning process, and chemical mechanical planarization (CMP) delamination must be solved. The PR poisoning was not observed in BD based device. The pressure in CMP process decreased to 2.8 psi to remove the CMP delamination for Cu-CMP and USG-CMP. $H_2O$ ashing process was selected instead of $O_2$ ashing process due to the lowest condition of low-k damage. NE14 cleaning after ashing process lot the removal of organic residues in vias and trenches was employed for wet process instead of dilute HF (DHF) process. The similar-state of SRAM yield was obtained in Cu/low-k process compared with the conventional $0.13{\mu}m$ FCT device by the optimization of these process conditions.
비모수 검정기반 공공부문 실적단가 선정모델 개발 -공동주택 철근콘크리트 공종을 중심으로-
이현기,전재용,박성철,홍태훈,구교진,현창택,Lee, Hyun-Ki,Jeon, Jae-Yong,Park, Sung-Chul,Hong, Tae-Hoon,Koo, Kyo-Jin,Hyun, Chang-Taek 한국건설관리학회 2008 건설관리 : 한국건설관리학회 학회지 Vol.9 No.1
정부는 2004년 상반기부터 실적단가집을 발행하여 실적공사비에 의한 예정가격 작성방안을 적극 활용하고자 하였다. 그러나, 건설업계에서는 현행 실적공사비제도가 내포하고 있는 문제점으로 인해 사업성 악화를 우려하며 실적공사비제도의 개선을 요구하고 있다. 본 논문은 철근콘크리트 공사의 실적단가와 시장단가의 흐름을 관찰하여 실적공사비제도의 문제점을 확인하고 현행 실적단가 선정 모델을 개선한 새로운 모델을 제시하고자 한다. 개선된 실적단가 선정 모델은 합리 적인 공사비 예측을 통해 관련업체를 효율적으로 지원하여 건설업체의 수익성을 확보하고 실적단가의 신뢰성을 제고할 수 있을 것으로 기대된다. The government wants to apply the construction cost estimating method based on historical data published in the first six months of 2004. Construction companies, however, require the proposed cost estimation model, to be improved which makes it difficult to predict a reasonable construction costs. This paper presents an improved historical data selection model after analyzing the problem of previous method throughout comparing contracted unit prices of reinforced concrete works selected by the previous model to market prices. The model which can select more feasible data would assist participates such as general contractors and sub-contractors to earn a proper profits.
이현기,Lee, Hyun-Ki 대한화학회 1965 대한화학회지 Vol.9 No.4
Leuconostoc mesenteroides P-60, Lactobacillus arabinosus 17-5, Streptococcus faecalis R have been successfully used for the quantitative determination of sixteen amino acids in Undaria pinnatifida (Harvey) Suringar hydrolysate by alkaline and hydrolysis for succesive two hours from two to twelve hours, by means of microbiological assay. And thiamine and riboflavin were fluorometrically determinated by thiochrome and lumiflavin in powder (80mesh) of Undaria pinnatifida (Harvey) Suringar. The results were as follows: 1) Arginine contents was the highest in hydrolysate for two hours, but longer the hydrolysis, the more content Undaria pinnatifida was decreased. 2) The adequate contents of other amino acids were obtained by hydrolysis for six hours. 3) Growth check and improve of Lactobacillus were not identified in determination by microbiological assay for Undaria pinnatifida. 4) The following values were obtained in Undaria pinnatifida hydrolysate six hours: asparatic acid 466, arginine 230, lysine 317, histidine 74, isoleucine 242, methionine 202, phenylalanine 256, proline 231, threonine 231, tyrosine 161, valine 415, glycine 302, leucine 414, glutamic acid 625, cystine (5 hrs.) 53 and tryptophan (8 hrs.) 90mg per nitrogen one gram. 5) Protein score was 81 (limiting factor was isoleucine) and essential amino acids pattern was of satisfactory results. And methionine contained was higher than FAO value or milk value. 6) Sulphur contained amino acids (methionine plus cystine) contained in Undaria pinnatifida were 225mg/N-g. That was satisfactory results. 7) Absorption spectrum of wave length were not different 1% HAc from buffer-sol. (pH 6.8) in dilution for determination of riboflavin. Both methods might be suitable. 8) Thiamine and riboflavin contained in Undaria pinnatifida were ($B_1,\;82.51{\pm}1.1){\gamma}/N-g\;and\;(B_2,\;115.29{\pm}1.5){\gamma}/N-g.$.
이현기,박래준,Lee Hyun-kee,Park Rae-joon 대한물리치료학회 2003 대한물리치료학회지 Vol.15 No.1
The nonunion means a state that the healing of fracture has stopped, and the part of fracture remains to not heal up in several months. The medical treatment of nonunion was tried several way to add stability to fracture. The treatment of The electrical stimulation and medicine which is make from calcium, phosphorus, and Vitamin A, D have used, but recently try to use Ultrasound and Laser in the physical therapy. In the text, we look into definition of nonunion, a cause, fracture of treatment process and approach of nonunion treatment. So, using Ultrasound and Laser in the physical therapy can be great help to the fracture and nonunion
저강도 레이저와 초음파의 동시 적용이 골절 치유 촉진에 미치는 효과
이현기,Lee, Hyun-Kee 대한물리치료학회 2003 대한물리치료학회지 Vol.15 No.4
The purpose of study was to evaluate effects of low-intensity ultrasound and laser on healing of bone fracture. Twenty fracture patient were selected for this study(fourteen males, six females. mean aged 44.8) fracture area was humerus, tibia, forearm bones. The obtain result are as follows. 1. The result of this study were following that pain score was significantly reduced pre intervention compared with post intervention in male(P<.001). 2. The result of this study were following that pain score was significantly reduced pre intervention compared with post intervention in female(P<.001). 1. The result of this study were following that pain score was not appeared reduced pre intervention compared with post intervention in male and female(P<.001). 4. The result of this study were following that pain score was not appeared pre intervention compared with post intervention in male between age(P<.001). 5. The result of this study were following that pain score was not appeared pre intervention compared with post intervention in female between age (P<.001). 6. The result of this study were following that radiologic score was significantly reduced pre intervention compared with post intervention in male(P<.001). 7. The result of this study were following that radiologic score was significantly reduced pre intervention compared with post intervention in female(P<.001). 8. The result of this study were following that radiologic score was not appeared reduced pre intervention compared with post intervention in male and female(P<.001). 9. The result of this study were following that radiologic score was not appeared pre intervention compared with post intervention in male between ages(P<.001). 10. The result of this study were following that radiologic score was not appeared pre intervention compared with post intervention in female between ages(P<.001). 11. The result of this study were following that healing on fracture area was observed that reduced pre intervention compared with post intervention