Spin-Value 헤드용 Ni-Fe/Mn-Ir 다층박막의 적층순서에 따른 자기적 특성

김장현,노재철,윤성용,전동민,박준혁,서수정 대한금속재료학회(대한금속학회) 2000 대한금속·재료학회지 Vol.38 No.8

The purpose of this research is to find out the dominant factor determining exchange biased field and characteristics of Ni-Fe/Mn-Ir/buffer/Si bottom structure. We found out that the H_(ex) and the H_c of Ni-Fe/Mn-Ir multilayers depended on the grain size of Mn-Ir layer and the grain-to-grain epitaxy relationship at the interface between Mn-Ir and Ni-Fe layers. The blocking temperature, at which the exchange biased field disappears, of top structure was about 220℃ and that of bottom structure was about 180℃. The grain size of Mn-Ir layer in bottom structure is smaller than that in top structure. The bottom structure has more magnetic dead layer and less alignment of spin of the Mn-Ir layer than top structure.

3D프린팅과 밀링 기술로 제작한 지르코니아 크라운의 내면 정확도 비교평가

김장현,김진영,조수민,김덕영,박지만 대한치과재료학회 2023 대한치과기재학회 학술대회 Vol.2023 No.4

청소년기(靑少年期)에서 척추체형(脊椎體形)과 자각증(自覺症)과의 임상적(臨床的) 고찰(考察)

김장현,Kim, Jang-Hyun 대한한방소아과학회 2002 대한한방소아과학회지 Vol.16 No.2

Objectives : The purpose of this study was to investigate the spine distortion and self-conscious pain in high school students. Method : Using the phase-shifting moire developed by KAIST(Korea Advanced Institute of Science and Technology) we measured the back surface distortion, and using questionnaire investigation, we investigated the self-conscious pain in 30 high school students(17 boy students and 13 girl students). Results : This study show that low back pain was most cases, and next headache, upper back pain, abdominal pain, neck pain, shoulder pain, leg pain, chest pain and gluteal pain. The ratio of each self-conscious pain was 90.0%, 86.7%, 83.3%, 83.3%, 80.0%, 76.7%, 66.7%, 33.3%, 33.3%, 30.0%. In remainder value of left and right shoulder, above of 3.0 were three students., above 2.0 to bellow 3.0 were 10 students, bellow 2.0 were 17 students. In remainder value of left and right gluteal, above of 2.0 was one students, above 1.0 to bellow 2.0 were 18 students, bellow 1.0 were 10 students. In remainder value of cervical vertical line to left and right axillae, above 4.0 was 1 student, above 3.0 to bellow 2.0 were 2 students, above 2.0 to bellow 3.0 were 3 students, above 1.0 to bellow 2.0 were 16 students, bellow 1.0 were 7 students. In remainder value of gluteal vertical line to left and right axillae, above 6.0 was 1 student, above 5.0 to bellow 6.0 were 7 students, above 4.0 to bellow 5.0 were 3 students, above 3.0 to bellow 4.0 were 2 students, above 2.0 to bellow 3.0 were 5 students, above 1.0 to bellow 2.0 were 7 students, bellow 1.0 were 5 students. In remainder value of cervical vertical line to gluteal vertical line, above 40 was 1 student, above 3.0 to bellow 4.0 were 4 students, above 3.0 to bellow 3.0 were 6 students, above 1.0 to bellow 2.0 were 8 students, bellow 1.0 were 11 students. Conclusion : It is suggested that the significant correlation exist between the spinal distortion and self-conscious pain. And we can find many cases as spinal distortion in high school students also. We have to study further more about juvenile postural distortion and it's prevention.

전산화(電算化) 진단(診斷)의 Database 구축을 위한 소아(小兒) 관형찰색(觀形察色)에 관한 연구(硏究)

김장현,Kim Jang-Hyun 대한한방소아과학회 2001 대한한방소아과학회지 Vol.15 No.1

In oriental medicine, diagnostic method was the four examination(四診) which was composed of inspection(望診), inquiring(問診), listening and smelling(聞診), palpation(切診). Inspection of skin color(望色) indicated the observation of patient's complexion(色診). In oriental medical theory, complexion of face was related to meridians(經絡) and zang-fu(贓腑). The change of complexion was reflected the ups and downs of qi(氣) and blood(血), the relative seriousness of an illness. especially, observation of complexion was essential in children, because of diagnostic difficulty and positive change according to each disease. The purpose of this study was to construct for standard measurement and invent for computerizing diagnostic system which was based on observation of complexion. It was objectively measured complexion using spectrophotometer and chroma meter. Measurement of complexion should make an offer the index of diagnosis.

PubMed를 통한 소아질환에 대한 침술치료 연구의 최신 동향

김장현,박보경,Kim, Jang-Hyun,Park, Bo-Kyoung 대한한방소아과학회 2005 대한한방소아과학회지 Vol.19 No.1

Objectives : We aimed at reviewing the studies related to the treatment of children by acupuncture therapy. Methods : We referred to PubMed by using searching words of acupuncture and the terms of pediatrics, such as child, children, adoiescence, baby, infant, juvenile. 22 journals with 23 paper were searched and reported. Results : 1. We found 23 articles in 22 journais, whose authors were in China, Japan, Germany, Russia, America, Brazil, etc. 2. Clinical trial was the method which these studies had used mostly the pattern of the rest were reviews, case reports of undetermined articles. 3. We analysed articles and found many articles of nocturnal enuresis, postoperative vomiting, etc. 4. The result of clinical studies represented the significant cure rate. 5. The acupuncture instruments on children's diseases were laser acupuncture, acupressure. and herbal skin sticking as well as body acupuncture,. Conclusion : Study of pediatric acupuncture was increasing and effective result was reported.

Influence of Low-Price Guarantees on Purchase Intention in Online Shopping Mall: Moderating Role of Regulatory Focus

김장현 한국유통경영학회 2022 유통경영학회지 Vol.25 No.6

Purpose: With the increase of cross-channel e-commerce or omni-channel, consumers’ purchase behaviors are changing, and the intensity of competition within the retail environment is growing still further. As competition intensifies, price competitiveness of each retailer is regarded as a vital factor of competitive advantage, and low-price guarantees is one of the representative pricing strategies that reflects this high interest in price competitiveness. This study examined whether the use of low-price guarantees by online retailers affects consumers’ shopping intention through the mediation of consumers’ financial risk perception, and whether that mediating role varies with regulatory focus of the consumers. Research design, data, and methodology: This study consists of two experiments. Experiment 1 presents an online shopping mall selling digital cameras and low-price guarantee(100% compensation vs. No compensation) The impact was confirmed. And in the case of Experiment 2, the analysis was conducted after additionally collecting data of 150% compensation. Results: The mediating effect of low-price guardee → financial risk perception → shopping intension has been confirmed, and this mediating effect appears in the case of promotion focus(vs. prevention). In addition, the interaction between low-price guarantee and regular focus appeared in the shopping intension. Implications: The effects of low-price guarantee of promotion focused consumers is influenced by the implementation of low-price guarantees, whereas the shopping intention of prevention focused consumers is not simply motivated by the implementation of low-price guarantees but is positively affected when additional compensation for potential is offered(i.e. price-beating guarantee). Therefore, when considering the use of low-price guarantees, it is necessary for retailers to design the policy considering the characteristics of their target consumers.

유압베인펌프 내부 회전체의 역학적인 거동 ( The Dynamic Behavior of Internal Rotating Slider of Oil Hydraulic Vane Pump )

김장현,정재연 한국트라이볼로지학회 1990 한국윤활학회지(윤활학회지) Vol.6 No.2

특집-모두가 자조금의 주인

김장현,Kim, Jang-Hyeon 한국낙농육우협회 2006 낙농·육우 Vol.26 No.5

주의력결핍 과잉행동장애 치료에 대한 문헌적 고찰 -최근 중의 잡지를 중심으로-

김장현,김희은,Kim, Jang-Hyun,Kim, Hee-Eun 대한한방소아과학회 2006 대한한방소아과학회지 Vol.20 No.2

Objective : The aim of this study was to investigate treatment of Attention Deficit Hyperactivity Disorder(ADHD) in current Traditional Chinese Medical Journals. Methods : From January 2000 to December 2005, we searched Traditional Chinese Medical Journals. Results : 21 articles were selected and classified into two large groups, case report and comparison study. Totally 1137 cases, complete cures are 276, significant improvements and some improvement 1028, complete cure rate 24.27%, total improvement rate 90.41%. Conclusion : Oriental medical treatments for ADHD were investigated to be effective in most trials. But there remains a debate about outcome criteria. Further studies are needed. Treatment methods were herbal medicine, acupuncture, auricular acupuncture, family consult.

소아설사(小兒泄瀉)에 대한 가감전씨백출산(加減錢氏白朮散)의 임상효능(臨床效能)에 관한 연구(硏究)

김장현,Kim, Jang-Hyun 대한한방소아과학회 2004 대한한방소아과학회지 Vol.18 No.2

Objectives: The objective of this study is to assess the clinical effect of Gagamjeonsibaekchulsan on child diarrhea. Methods: This clinical study was carried out with 42 cases(31male, 11female) of children aged 0 to 14 years old who visited the Department of Pediatrics, Dongguk University Bundang Oriental Hospital and were diagnosed as the diarrhea. Assessments were made with reference to sex, age, the duration of symptoms and physical history. To assess the impact of Gagamjeonsibaekchulsan, the complicated signs, the duration of treatment, the correlation between the use of Gagamjeonsibaekchul- san and the duration of symptom were examined before and after the treatment. Results: There were 31 males and 11 females in the incidence by sex. It showed that males were more than females. The most numerous age group was 0-2(19) followed by 3-7 (11) and 9-12 (12). According to the duration of symptom, 12 children have symptom for 0-7 days, 10 for 8-14 days, 11 for 15-20 days, 4 for 22-28 days and 5 over 28 days. With regard to the physical history of the sample, 5 children had atopic dermatitis, 3 children had enteritis, 3 children had rhinitis, 2 children had tonsillitis, 1 child had otitis media, 1 child had asthma and 1 child had pneumonia. The children also had the complicated signs: 22 children had anorexia, 17 children had abdominal pain, 13 children had vomiting and 8 children had nausea in digestive organ. In addition 11 children had dizziness, 7 children had general weakness, 1 child had enuresis and 1 child had sweat in general symptoms. For the duration of the treatment, 14 children were treated for 7 days, 13 for 8-10 days, 8 for 11-14 days, 3 for 15-21 days, 2 for 22-28 days and 2 for 29-40 days. No distinct relationship between the use of Gagamjeonsibaekchul-san and the duration of the symptom was found. Conclusion: Gagamjeonsibaeichul-san is effective in the treatment of intestine mucous membrane and improves the function of digestive system. It is also an effective short-term treatment for child diarrhea.