수치 해법을 이용한 1가 약산과 강염기 적정계산의 시뮬레이션

이수영,권태준,강수림 서울産業大學校 2000 논문집 Vol.51 No.2

The calculation of pH plots for acid base titrations can be an important part of the analytical and general chemistry. New methods for weak acid - strong base titration curves are suggested for studies of mono protic electron reactions. The general acid base titration curve program developed by fortran was used to generate H+ or OH- ionic concentrations. also its usefulness as a tool to generate pH plots either in a cassroom setting or research has been described.

전신마취시 경막외강에 투여한 Fentanyl과 Clonidine의 술후 제통효과비교

국종수,소금영,안태훈 조선대학교 부설 의학연구소 1998 The Medical Journal of Chosun University Vol.23 No.2

Epidurally administered clonidine produces analgesia by an alpha 2-adrenergic mechanism and may provide postoperative analgesia without nausea, pruritus and respiratory depression associated with opioid administration. Many studies have shown the benificial effects of epidural clonidine in postoperative pain management. Pre-administered epidural analgesic agent before the skin incision may Prevent the nociceptive input. We provided the pre-emptive analgesia and compared the postoperative analgesic effects of epidural clonidine that of with epidural fentanyl. Thirty gynecologic Patients, ASA (American society of anesthesiologists) Physical status 1, 2, undergoing elective lower abdominal surgery under general anesthesia, were studied. They were not taking any premedications. Before anesthesia, an epidural catheter was inserted at the L<아래첨자>2-3</아래첨자> interspace. Patients were divided into two groups randomly. Group 1 received 100 ㎍ fentanyl in normal saline IS ml through the epidural catether, and group 2 received 150 ㎍ clonidine in normal saline 15 ml. During the operation, we recorded the vital signs and side effects. Just before suturing peritoneum, we injected the corresponding drugs on individual groups through the epidural catheter In the recovery room, the postoperative analgesia was assessed by VAS (visual analogue scale). Vital signs, sedation score and side effects were also checked. VAS and systolic blood pressure were significantly lower in the group 2 than the group 1 at the recovery room. The diastolic blood pressure, heart rate and sedation score were not significantly different between the two groups at the recovery room. Also the vital signs during the operation were not significantly differnt between the two groups The incidence of hypotension was 3 out of 15 in the group 2 Epidural bolus clonidine 150 ㎍ produces more profound and longer postoperative analgesic effects than fentanyl 100 ㎍ at the lower abdominal surgery. But hypotension may occure more frequently. So, if we select the patient cautiously, clonidine is a good alternative analgesic agent for the epidural analgesia.

상악동거상술을 이용한 인공치아 이식 치험례

우순섭,장윤성,김태균,이영수,심광섭,유광희 한양대학교 의과대학 1999 한양의대 학술지 Vol.19 No.1

Recently many dentists would like to select the implant installation for the restoration of partially or fully edentulous patient. Usually, it is needed at least 8mm of alveolar bone height for implant installation. But, in many cases, the implant installation is impossible due to anatomic limitation such as maxillary sinus, floor of nose, mandibular canal, lack of width, etc. So, dentists must come over these limitations by methods of sinus lift, nerve repositioning, transmandibular implant etc. Especially, a lot of ridges have inadequate bone height at the upper molar edentulous areas, and to insert implant for such sites represents low success rate. So, autogenous or allogenic or alloplastic bone can be grafted before or at the same thme with implant installation. We report a case of 22 year-old woman who was performed implant installation successfully by using sinus lift technique with iliac block bone graft to a patient whose low alveolar bone height made common implantation impossible. Now, she exerts good occlusive function at the time of 15 months after the operation.

UVB로 조사된 Hairless 마우스에서 홍차 열수추출물의 피부주름 개선 효과

전데레사 ( Te Re Sa Jeon ),최소영 ( So Young Choi ),장병수 ( Byung Soo Chang ),김영철 ( Young Chul Kim ) 대한미용학회(구 대한미용과학회) 2011 대한미용학회지 Vol.7 No.3

To evaluate the alleviating effect of black tea water extract (BTWE) on skin wrinkle, the aging animal model was produced by 12 weeks-irradiation of UVB to the backs of 6~7 weeks old female SKH-1 hairless mice three times a week as each time intensity of 60 mJ/cm2 (1MED) at week 1; 2MED at week 2; 3MED at week 3; and 4MED at week 4~12. And then, BTWE was applied to the backs of the aging animals twice a day, 5 days a week for 4 weeks, 200 μL each time (BTWE 1%: 0.13 g/kg BW/day, 2%: 0.26 g/kg BW/day). Total wrinkle area for the control (C: UVB irradiation+saline treatment) group was 107.2% significantly (p/0.05) wider than the normal (N: no UVB irradiation) group. And those of the positive control (PC: UVB irradiation+0.01% retinoic acid application) and experimental (E1: UVB irradiation+1% BTWE application, E2: UVB irradiation+2% BTWE application) groups were significantly (p/0.05) narrower than the C group, as 48.2%, 41.5% and 46.4%, respectively. Collagen fibers were arranged irregularly and sparse in density and some elastic fibers were degenerated in the C group, while they were remarkably improved in the PC, E1 and E2 groups. MMP-3 mRNA expression in the C group was 645.4% significantly (p/0.05) higher than the N group, and those of PC, E1 and E2 groups were significantly (p/0.05) lower than the C group, as 76.8%, 65.9% and 78.0%, respectively. BTWE could have a considerable alleviating effect on skin wrinkle in hairless mice irradiated with UVB.

보문 : 홍차 열수추출물의 피부노화 개선 효과

전데레사 ( Te Re Sa Jeon ),최소영 ( So Young Choi ),김영철 ( Young Chul Kim ),장병수 ( Byung Soo Chang ) 대한미용학회(구 대한미용과학회) 2011 대한미용학회지 Vol.7 No.4

To evaluate the alleviating effect of black tea water extract (BTWE) on skin-barrier damage and inflammation, the aging animal model was produced by 12 weeks-irradiation of UVB to the backs of 6~7 weeks old female SKH-1 hairless mice three times a week, increasing the intensity each week @ 60 mJ/cm2 (1MED): 1MED at week 1; 2MED at week 2; 3MED at week 3; and 4MED at week 4~12. Then, BTWE was applied to the backs of the aging animals twice a day, 5 days a week for 4 weeks, 200 μL each time (BTWE 1%: 0.13 g/kg BW/day, 2%: 0.26 g/kg BW/day). The skin erythema indices and transepidermal water loss (TEWL) of the two groups: the positive control(UVB+0.01% retinoic acid) and experimental (UVB+BTWE) groups, were significantly (p<0.05) lower than the control (UVB+saline) group. Moisture capacities of these two groups were significantly (p<0.05) higher than the control group. The epidermis and dermis of the control group were remarkably thickened in comparison with the normal (no treatment) group. Many inflammatory cells were infiltrated in the dermis of the control group. Whereas, a few inflammatory cells were found in the dermis of the positive control and experimental groups. A large number of mast cells were found in dermis and hypodermis of the control group, and the degree of degranulation was remarkable. Whereas, a considerably less number of mast cells were found in the positive control and experimental groups relative to the control group, and the degree of degranulation was slight, which were similar to the normal group. BTWE could have a considerable improving effects on skin aging in hairless mice induced by UVB irradiation via alleviating of skin-barrier damage and inflammation.

헤어샵 소셜커머스 적용에 대한 소비자의 인식 및 이용실태

장영하 ( Young-ha Jang ),기효은 ( Hyo-eun Ki ),오태식 ( Te-sik Oh ),장선영 ( Sun-young Jang ),윤병현 ( Byung-hyun Yoon ) 한국미용예술경영학회 2015 미용예술경영연구 Vol.9 No.1

Along with the rapid growth of social commerce, social commerce has been applied to the beauty industry, and social commerce specifically targeting this industry has started appearing. However, there must be some sort of change because the rate of returning customers is low. so this research paper will attempt to study the consumers’ recognition and current level of usage of hair shop social commerce. For this study, a survey was given to 201 people, and the responses were analyzed with the SPSS 20.0 using frequency analysis and technical statistical analysis. The results showed that 103 people had experience in purchasing hair shop social commerce products and 98 people did not, and women in their 20’s were shown to have the highest rate of experience in buying hair shop social commerce. As for the reason for purchasing hair shop social commerce coupons, 68.9% said that it was because they wanted to receive hair maintenance at a discounted price, and the intent to repurchase hair shop commerce coupons was high with 68% of hair shop coupon users stating that they would buy them again. Amongst the people with no experience in buying hair shop social commerce coupons, 43.9% said it was because they had no interest in them and 23.5% said it was because they didn’t trust them. Using these results, this study aims to provide academic information regarding hair shop social commerce and suggest some ways that hair shop social commerce could be improved.

동영상을 활용한 심리자극이 검도 선수들의 자율신경과 기분상태 및 무산소성 파워에 미치는 영향

박영진 ( Young Jin Park ),한승훈 ( Sung Whoon Han ),김동제 ( Dong Jae Kim ),최동제 ( Dong Jae Choi ),가경환 ( Kung Hwan Ka ),김병태 ( Byung Te Kim ),김영훈 ( Young Hun Kim ) 대한무도학회 2014 대한무도학회지 Vol.16 No.3

본 연구는 검도선수를 대상으로 동영상 심리자극 유·무에 따른 자율신경 반응과 기분상태검사 그리고 최대무산소를 파워 검증을 통해 동영상 자극의 심리자극의 효과를 검증하고자 하였다. 대학 검도 선수 15명을 대상으로 유튜브(You Tube) 보디빌딩 동영상 자극 후 HRV(Heart rate variability)를 측정을 통한 자율신검사와 정서 상태 프로파일(POMS)을 이용하여 기분 상태를 설문 조사하였으며, LODE사(Denmark)의 자전거 에르고미터인 Corival을 사용 무산소성 최대 운동 검사를 실시하였다. 그 결과 동영상 자극 후 부교감신경의 비율이 유의하게 낮아졌으며, 교감신경과 부교감신경의 균형비율도 교감신경의 비율을 유의하게 높였다. 기분상태 변화는 분노, 피로, 혼란은 유의하게 낮추었으며, 활력은 유의하게 높였다. 무산소성최대운동의 평균파워를 유의하게 높였다. 이와 같은 결론을 종합하면 동영상 자극은 부교감신경의 비율을 줄임으로서 활력 높은 기분 상태를 만들고 운동능력에 도움을 주는 것으로 나타나 경기 전 심신조절법으로 사용할 가치가 높다고 할 수 있다. The objective of this study is to investigate the autonomic nerve response and condition according to presences of psychological stimulations using videos for Kendo players and to verify the effect of such stimulations through monitoring the maximum anaerobic power. A questionnaire on conditions is performed using autonomous nerve tests and profile of mood states(POMS) for 15 university student Kendo players through measuring HRV(Heart Rate Variability) after applying stimulations using bodybuilding videos presented in You Tube. Then, anaerobic maximum exercise tests for the players are implemented using Corrival which is a cycle ergometer by LODE(Denmark). In the results, the rate of parasympathetic nerves is significantly decreased after the video stimulations and the rate of sympathetic nerves is significantly increased regarding the balance between sympathetic and parasympathetic nerves. In changes of conditions, it decreases angers, fatigues, and disorders significantly and increases vitalities significantly. Also, it increases average power of the anaerobic maximum exercise. In conclusion, the video stimulations bring high vital conditions by decreasing the rate of parasympathetic nerves and help to exercise capabilities. Thus, it is valuable to apply it for controlling mentality before playing a game.

비즈니스 프로세스 타당성 검증 기법

설주영(Joo Young Sul),박정업(Park Jung Up),김학수(Kim Hak Soo),신영재(Youngjae Shin),장진근(Joo Young Sul),박찬희(Park Chan Hee),김태인(Kim Te In),손진현(Jin Hyun Son) 한국정보과학회 2006 한국정보과학회 학술발표논문집 Vol.33 No.2C

과거에 비해 최근에 비즈니스 프로세스가 다양해지고 복잡해짐에 따라 비즈니스 프로세스를 디자인할 때 발생할 수 있는 문제점이 점차 증가하고 있다. 그로인해 비즈니스 프로세스 검증의 중요성이 높아지고 있지만 많은 검증 방법이 제안되고 있지 않은 실정이다. 한편, 최근 BPMI에서 주도하는 BPMN(Business Process Modeling Notation)은 비즈니스 프로세스를 위한 표준화된 그래픽 표기법으로써 BPMN을 지원하는 디자인 툴을 이용하면 다양하고 복잡한 프로세스 환경을 일반화된 형태로 디자인하고 분석할 수 있다. 이 논문에서는 이러한 BPMN으로 디자인할 때 발생할 수 있는 문제점들을 효율적으로 검증할 수 있는 몇 가지 검증기법을 제시한다. 이로 인해 비즈니스 프로세스 실행 시 발생할 수 있 문제점들을 효율적으로 검증할 수 있는 몇 가지 검증기법을 제시한다. 이로 인해 비즈니스 프로세스 실행 시 발생할 수 있는 에러들을 사전에 검증하여 예기치 못한 큰 비용을 줄일 수 있다.

유전 및 육종 : 한우의 주요 경제형질에 대한 보증씨수소와 후보씨수소의 능력비교

박병호 ( Byoung Ho Park ),조광현 ( Kwang Hyun Cho ),김시동 ( Si Dong Kim ),김효선 ( Hyo Sun Kim ),이승수 ( Seung Soo Lee ),정호영 ( Ho Young Chung ),이성수 ( Seoung Soo Lee ),황정미 ( Jeong Mi Hwang ),최태정 ( Te Jeong Choi ),최 한국동물자원과학회 ( 구 한국축산학회 ) 2010 한국축산학회지 Vol.52 No.4

선천성 경골 가관절형성증 시험 1례

윤태현(Te Hyun Youn),신영환(Young Hwan Shin),김옥석(Ok Suck Kim) 대한정형외과학회 1979 대한정형외과학회지 Vol.14 No.4