글루타민산나트륨(Mono Sodium Glutamate)을 처방한 모발 경화제가 펌에 미치는 효과

최원준ㆍ유세은(Won Joon ChoiㆍSe Eun Yoo) 한국인체미용예술학회 2016 한국인체미용예술학회지 Vol.17 No.1

This study attempted to assess the applicability of the hair-hardener considering hair elasticity and retention through analysis of changes in hair conditions after chemical treatment. For this, the following were analyzed: safety and stability of the hair-hardener, changes in hair thickness, amino acid, changes in surface color, hair surface using the SEM, changes in tensile strength, and wave efficiency by the frequency of shampooing. Then, the results found the following: The stability of the hair-hardener was confirmed because there were no changes in its physical properties and color at room temperature and constant temperature. In a clinical allergy test as well, a negative response was found in all 20 clinical trial participants, which confirms its safety. In terms of changes in hair thickness, hair was thicker in the group that used the hair hardener than in the control group. In comparison of amino acid, total amino acid, L-glutamic acid, and cysteine contents increased in the experimental group that used the hair hardener. In terms of changes in surface color, L* value was high in the experimental group. A* value, which represents the level of reddish color, was also high in the experimental group. In contrast, b* value, which reveals the level of yellow color, was low in the experimental group. In observation of hair surface using the SEM, hair cuticles were tidier in the experimental group than in the control group. In terms of tensile strength, the experimental group was greater than the control group. According to measurement of wave efficiency by the frequency of shampooing after a general perm and setting perm as well, wave formation was more efficient in the experimental group.

데이터 마이닝을 활용한 한국 프로야구 구단의 승패예측과 승률 향상을 위한 전략 도출 연구

김원종 ( Kim Won-jong ),최연식 ( Choi Yeon-sik ),유동희 ( Yoo Dong-hee ) 한국스포츠산업경영학회 2018 한국스포츠산업경영학회지 Vol.23 No.3

본 연구에서는 데이터 마이닝 기법을 활용하여 한국 프로야구의 승패예측모형을 구축하는 실험을 진행하였다. 이를 위해, 2017년에 실시된 한국 프로야구 10개 구단의 전체 경기 중 무승부 경기를 제외한 1,418경기에 대한 자료를 사용하였다. 승패예측모형에는 의사결정나무, 베이즈넷, 인공신경망 알고리즘과 앙상블 기법인 배깅과 부스팅이 사용되었으며, 그 결과 배깅 기법에 인공신경망을 적용한 예측모형에서 가장 높은 예측률인 85.18%를 기록하였다. 다음으로 의사결정나무 기반 예측모형을 활용하여 한국 프로야구 전체 구단에 관한 8개의 승패규칙을 도출하였다. 여기에서 승패규칙은 승패예측에 영향을 미치는 주요 요인들인 팀출루율, 팀타율, 피안타, 안타, 타석, 타수로 표현되며, 도출된 규칙을 바탕으로 구단의 승률 향상에 도움을 주는 전략을 제안하였다. 또한 플레이오프 진출 구단과 미진출 구단에 관한 승리규칙을 각각 4개씩 도출하였고 이를 바탕으로 두 집단에 맞춤화된 승률 향상 전략을 제시하였으며, 실제 구단에서 선수를 영입한 방향과의 비교를 통해 제시된 전략의 활용 가능성을 확인하였다. This study conducted an experiment to develop win-loss prediction models for the Korean professional baseball league using data mining techniques. To this end, we used data on 1,418 games from all games played by the ten Korean professional baseball teams in 2017, except draw games. We developed win-loss prediction models using not only a decision tree, Bayse net, and artificial neural network algorithms, but also ensemble methods, such as bagging and boosting. As a result, first, we found that the artificial neural network-based prediction model using the bagging method reported the best accuracy (85.18%). Second, we derived eight win-loss rules for entire teams from the decision tree-based prediction model. These rules consist of six influential factors: team on base average, team batting average, hit by opponent, hit, plate appearances, and at bat. Using the derived rules, we proposed helpful strategies for improving the winning rate. Third, we derived four winning rules for both playoff teams and non-playoff teams; using the rules we proposed customized strategies for improving the winning rate of the two different groups. Finally, we confirmed the feasibility of the proposed strategies by comparing non-playoff teams’ actual player recruitment strategies.

Rat의 DNA Polymerase β cDNA가 도입된 Transgenic Drosophila의 체세포 돌연변이 유발에 관한 연구

최영현,유미애,이원호 부산대학교 유전공학연구소 1995 분자생물학 연구보 Vol.11 No.-

The effects of DNA polymerase β on the somatic chromosome mutations and mitotic recombinations were investigated using the transgenic Drosophila bearing chimeric gene consisting of a promoter region of Drosophila actin 5C gene and rat DNA polymerase β. For detecting the somatic chromosome mutations and mitotic recombinations, the heterozygous (mwh/+) strains possessing or lacking transgene pel β were used. The spontaneous frequency of small mwh spots, due deletion or nondisjunction etc, in the non-transgenic w strain and the transgenic p[pol β]-130 strain was 0.351 and 0.606, respectively. The spontaneous frequency (0.063) of large mwh spots, arises mostly from somatic recombination between the centromere and the locus mwh, in the transgenic p[pol β]-130 strain was about three times higher than that (0.021) of the non-transgenic w strain. The mutant clone frequencies of small and large mwh spots induced by N-methyl-N'-nitro-N-nitrosoguanidine and ethyl methanesulfonate in the transformant p[pol β]-130 were higher than those in the host strain w. The present results suggest that rat DNA polymerase β participate at least in the somatic chromosome mutations and mitotic recombination processes.

Flubendazole의 편충에 대한 구충효과

최원영,남호우,유채을,한인수,한경용 최신의학사 1988 最新醫學 Vol.31 No.7

본태성 고혈압 환자의 순응도에 관한 연구

유원성,최석구 인제대학교 1987 仁濟醫學 Vol.8 No.1

본태성 고혈압 환자의 순응도를 제고할 방안을 강구하고자 대학병원 내과 외래에서 새로 진단된 환자 100명을 통상적으로 진료하면서 1년2개월간 관찰하였다. 통원율은 94%로 우수하였으나 6개월에 60%가 탈락하였으며, 그 이유로는 의료측 요인이 47%로 좀 더 적극적인 개입이 필요한 것으로 판단되었다. One hundred patients with essential hypertension, diagnosed consecutively, were followed-up at hypertension clinic of Paik Hospital to evaluate their compliance for 14 months without any intervention. The following results were observed. 1.Rate of attendance was excellent (94%), although being decreased rapidly after 3 months' trestment especially in drop-out group. 2.Rate of keeping reservation was fair (75%) and stable from 2 months' follow-up and thereafter. 3.Additive drop-out rates were 26%, 36% 43% and 60% respetively by the end of 1,2,3, and 6 months' observation. There was no significant difference in age, sex and severity of hypertension. 4.Causes of non compliance were analyzed as 47% from medical, 28% from patient and 25% from socioeconomic factors. These data seem to mean that there is ample room for medical provider to improve patient's compliance by active interventions.

모발의 부위별 분석을 통한 Methamphetamine 남용자의 복용시기 추정에 관하여

유영찬,정희선,최화경,진원택,이한선 內務部 國立科學搜査硏究所 1996 國立 科學 搜査 硏究所 年報 Vol.28 No.-

만성 심부전 환자에서의 Denopamine 투여효과

최석구,김현대,정태기,김대현,김용복,유원상 인제대학교 1994 仁濟醫學 Vol.15 No.2

만성 심부전 환자에게 새로운 경구용 비 digitalis 강심제인 denopamine 1T(5mg)을 1일 3회 3개월간 투여하여 그 유효성 및 안전성을 검토했다. Background : Patients with congestive heart failure have a high mortality rate and are also hospitalized frequently. We studied the effects of a new oral inotrophic agent, denopamine in patients with chronic heart failure. Methods : 16 patients receiving conventional treatments for heart failure were treat ed with denopamine 5mg tad for at shortest 3 months. Their history were taken and the physical examination, general laboratory test and the echocardiographic examination were done before and after treatment. Results: There were 3 deaths and 1 withdrawal because of worsening heart failure. 5 patients (42%) among 12 patients showed the improvement in their subjective symptoms. The fractional shortening and ejection fraction of the left ventricle were increased by 3.2% and 5.6% respectively in their absolute values. Conclusion : The addition of denopamine to conventional therapy considerably improved the subjective symptoms and the left ventricular function in the limited number of patients with chronic heart failure.

반사 시스템 응용에 의한 북측면의 태양 복사에너지 강도

최원기,유경돈,서승직 대한건축학회 2004 대한건축학회논문집 Vol.20 No.11

This paper focuses on applications to a sun reflecting(hereafter referred to as suncatcher) system for the increase of solar radiant energy intensity in the north surface of building. This suncatcher system uses the same principle as reflecting solar collectors and is similar to the 'Le four solaire d'Odello' of French. This paper performs its fundamental study through the simplified numerical model. Preliminary results indicate the suncatcher system could provide profitable conditions for solar thermal collection of the north surface in all climates. As a passive device, application of suncatcher baffle outside the north surface in building could significantly increase the level of thermal collection on a sunny day. Consequently, the suncatcher system is proved to be an effective device for the improvement of environment performance in the north surface. An additional study is required to establish the complete suncatcher system on the basis of this research. This approach could have implications for energy efficiency and conservation, effectively utilizing the free resource of solar radiation.

케일 쥬스에 의한 AFLATOXIN B_1의 유전독성 억제 효과

최영현,박건영,이선미,유미애,이원호 부산대학교 유전공학연구소 1995 분자생물학 연구보 Vol.11 No.-

The inhibitory effect of the fresh juice of kale on the genotoxicity induced by aflatoxin B_1 (AFB_1) in Salmonella and Drosophila was investigated. The kale juice had strong inhibitory activity for His^- to His^+ reverse-mutations induced by AFB_1 acting on S. typhimurium TA100. A similar inhibitory effect was detected in somatic cell mutation assaying system of D. melanogaster. Using the wing hairs spot test, we found that the formation of mutant hairs in adult flies as a result of feeding with AFB_1 in their larval stages was efficiently inhibited by coadministration of the fresh juice of kale, which revealed that it can inhibit gene mutation, deletion and mitotic chromosomal recombination. These results seem to suggest that kale juice may exert its inhibitory effect to mutagenic and/or carcinogenic properties of DNA damaging agents.

클러스터드 주문형 비디오 서버에서 검색의 효율을 높이는 배치 정책

崔榮俊,元裕憲,安柔貞 弘益大學校 科學技術硏究所 1998 科學技術硏究論文集 Vol.9 No.1

One of the most important purposes in VOD (Video On Demands) sever is to suppose high quality of retrieving service to more clients in restricted times. The process that VOD server retrieves and transfers the video data on storage devices which clients request is real-time tasking, but the process that the video data is placed and saved on storage devices in non real-time tasking. So, Through considering characteristics of video data and performance of storage devices that the data is saved, we can maximize to service the real-time requests to more clients that VOD server retrieves and transfers video data. In this paper, we propose a new placement policy of disk system based on large disk system composed a many disks with varying performances, as RAID. First, we partition disks by their performance into quite a few groups. Then, we select the best disks group to save encoded video data, evaluating variable bit rate of the encoded video data.