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최건영,고성화,김종옥,박은서,김완규,백경동,박동규 순천향대학교 부설 산업기술연구소 2021 순천향 산업기술연구소논문집 Vol.27 No.2
The Internet of Things, the core of the Fourth Industrial Revolution, is growing by incorporating various technologies into various fields. Among them, smart home systems that apply IoT technology to home environments are being actively studied. The home hub market, a means of communication for smart homes, is also developing at the same time. As the home hub market develops, security threats are also increasing accordingly. In this paper, 'Smart Home Mirror' is implemented by combining mirror and IoT technologies so that users can use them to communicate with smart home applications and other devices. To meet security issues, users in it are recognized by using face recognition technology and AES between all data communications in it is applied. The proposed device’s usefulness is approved by implementing it in smart home environments.
加減茵蔯蒿湯 水鍼液이 膽道結紮로 유도된 肝損傷에 미치는 영향
成樂箕,金元信,田炳薰,李建穆 대한동의병리학회 1993 동의생리병리학회지 Vol.8 No.-
연구배경 : 肝癌 및 肝硬變은 韓國人의 疾病으로 인한 중요한 喪亡原因의 하나이며, 특히 우리나라 B型肝炎의 流行地域으로 急慢性 肝炎이나 肝經辨證, 肝癌의 發病率이 높다. 그리하여 肝硬變症을 寢具治療法중 水鍼을 이용하여 肝의 募穴인 期門穴에 投與하면 治療效果가 있는지에 대하여, 그리고 藥量에 따라 治療效果가 달라지는 지에 대하여 알아보기 위하여 본 연구를 시행하였다. 방법 : 加減茵蔯蒿湯 水鍼液을 膽道를 結紮한 白鼠에 26guage의 1ml 주사기를 이용하여 투여하였다. 經穴은 人體의 期門에 相應하는 左石部位와 腹部內의 任意의 部位를 設定하여 매일 1회 7주간 수침하였다. 결과 : 體重과 Total Bilirubin은 實驗群 A, C에서 有意性 있는 增加와 減少를 보였고, WBC·ALT·AST·ALT 및 Cholesterole은 全實驗群에서 有意性 있는 減少를, Albumin은 全實驗群에서 有意性 있는 增加를 각각 나타내었으며, 組織學的 觀察도 全實驗群에서 有意性을 나타내었다. 또한 Hydroxyproline도 實驗群 A, B에서 有意性있는 減少를 보였다. 결론 : 加減茵蔯蒿湯 水鍼液을 膽道를 結紮한 白鼠의 期門穴에 投與한 缺課 有意한 효과를 보였으나 水鍼量에 따라 有意性의 차이가 있어 敵意한 水鍼量을 투여하는 것이 治療시 重要하다고 思料되며, 또한 水鍼에 대한 安全性 問題에 대하여서도 더욱 硏究할 필요가 있다. In order to study the effects of the water extract of Gagaminjinhotang in the Meridian points Liv 14 on the liver damage indued by bile duct ligation during 7 weeks after the operation of bile duct ligation, blood was taken from the heart and body weight, WBC, RBC, hemoglobin, hematocrit, total bilirubin, ALT, AST, ALP, cholesterol, albumin and hydroxyproline were in each experimental apparatus. The results of this study were as follows; 1. Body weight of EXA, C were significantly increased by the water extract of Gagaminjinhotang. 2. WBC of EXA,B,C were significantly decreased by the water extract of Gagaminjinhotang. 3. RBC, hemoglobin and hematocrit of EXA,B,C were not significantly influenced by the water extract of Gagaminjinhotang. 4. Total bilirubin of EXA,C and direct bilirubin of EXA,B,C were significantly decreased by the water extract of Gagaminjinhotang. 5. ALT, AST,ALP of EXA,B,C were significantly decreased by the water extract of Gagaminjinhotang. 6. Cholesterol of EXA,B,C, were significantly decreased by the water extract of Gagaminjinhotang. 7. Albumin of EXA,B,C, were significantly increased by the water extract Gagaminjinhotang. 8. Hydroxyproline of EXA,B were significantly decreased by the water extract Gagaminjinhtang. 9. On the histological observation, the results of the experimental groups showed significant hepatoprotective effects compared with control group from 3 weeks after the administration of the water extract of Gagaminjinhotang. According to the above result, it is suggested that the water extract Gagaminjinhotang was significantly effective in WBC, bilirubin, ALT, AST, ALP, cholesterol, albumin and hydroxyproline level and then it seems to be applicable to the fibrosis or cirrhosis of liver.
강태건,조성구 동국대학교 산업기술환경대학원 1998 산업기술논총 Vol.4 No.-
Lottery game is one of the most frequently used tools to study people's risk attitude. However, even if two different decision problems can be represented by the same lottery, decision maker's risk attitude may not be the same due to the different decision contexts. This paper presents the results of an experiment designed to study the contextual influence of decision problems on the decision maker's risk attitude. In the experiment, some realistic decision problems, which can be represented by similar lottery games but are contextually different, are formulated and presented to the subjects using a questionnaire form. The results show that people's risk attitude is significantly dependent on decision context and that in some situations the revealed attitudes disagree with the results of the previous researches. It is also noted that for the experimental studies concerning risk attitude to produce more meaningful results, it would be better to relax the strict definition of risk neutral attitude, i.e., expected value '=' certainty equivalent'.
유건성(Geon Sung Yoo),변재훈(Jae Hoon Byeon) 한국체육교육학회 2009 한국체육교육학회지 Vol.14 No.1
The purpose of this study was self-identity of individuals with physical disabilities participating in physical activity. Subjects included 198(male: 143 female: 58) with individuals with physical disabilities. The questionnaire that was developed by Park Ah-Chung(1996) was used self-identity scale of Korean. It was revised by Lee Sung-Guk(1999) which consisted of 6 factors, 48 items. Construct validity of the instrument was checked by Factor analysis. Reliability of questions was confirmed by Cronbach`s α value(.783). The data analysis were Independent t-test, one-way ANOVA, and multiple regression analysis. The results were as follows; First, job and incomes had significant effects on self-identity of individuals with physical disabilities. Second, physical instructors, mass media, and friends had significant effects on self-identity of individuals with physical disabilities. Third, physical activity period, group exercise, and athletes with disabilities had significant effects on self-identity of individuals with physical disabilities. Fourth, high understanding of disability traits significant difference than low understanding of disabilities traits on self-identity of individuals with physical disabilities. These results implied that individuals with physical disabilities participation in physical activity had significant effects on their self-identity according to socio-demographic variables, significant other, type of physical activity, participation type of physical activity, and understanding of disability traits.
사공 건,김한근,조현철,박상하 東亞大學校 大學院 1992 大學院論文集 Vol.17 No.-
A topic of this study is focused on the magnetic properties of Ni-Zn ferrite dependent on heat treat-ments(60, 80, 95℃) and frequency. Ni-Zn ferrite powders were synthesized by wet-direct method using FeCl₂·6H₂O, NiCl₂·6H₂O and ZnCl₂ as starting raw materials. As a summary, the initial permeability, loss factor and magnetic reluctance in the frequencies of 10 KHz∼10MHz for the specimens by prepared on the 60(℃) heat treatment and sintering condition at 1100(℃) for 3 hours were 7, 1∼5×10?? and 14.7(AT/wb), respectively. The highest highest figure of merit (??×Q) at the 400(KHz) was 1,050.
삭골(Bone shaving)한 골의 재생에 골막이 미치는 영향
강진성,권건영,송중원,오석희,한기환 大韓成形外科學會 1989 Archives of Plastic Surgery Vol.16 No.5
Many orientals have a more prominent malar eminence and mandibular angle than westerners so their faces often look rough and unattracive. In recent years more people want to have a more attractive and beautiful face due to economic prosperity and westernization. Therefore people receiving bone shavings or osteotomies for cosmetic purposes are increasing. The effects of the periosteum on lay bone grafts were investigated but the effect of the periosteum after bone shaving or osteotomy is little known. The authors investigated the effect of the periosteum on the regeneration of bone in membranous and endochondral bone of rabbits. Bony defects each measuring about 5.0×5.0×1.5mm were made on the left and right sides of the parietal bones of 15 rabbits and femurs of 15 other rabbits respectively. The periosteum was preserved on the left and removed on the right. The following results were obtained: 1) The average thickness of the regenerated bones in groups 2 δ4 were thinner than those in groups 1 δ 3 at 4, 8 and 12 weeks postoperatively but the differences of thickness were statistically significant at onl 4weeks postoperatively(P<0.05). 2) The histological findings in groups 2 δ 4 showed lesser regeneration of the shaved bone than those in groups 1 δ 3 at 4, 8 and 12weeks postoperatively. 3) There was no significant increase in the thickness of the regenerated bone after 8 weeks postoperatively in all groups. 4) At 12 weeks postoperatively, the thickness of the regenerated bone in all groups was over 70% of the thickness of the resected bone. In summary, the authors found that it is important to perform overcorrection and resect the periosteum simultaneously in bone shaving to prevent the unwanted regeneration.
이상한,권대근,백상흠 경북대학교 병원 2002 경북대학교병원의학연구소논문집 Vol.6 No.1
This study was preformed to investigate the average anthropometric value of normal Korean men and women and to compare the preceding literatures.Additionally,average Korean profilogram was made to serve as a template for diagnosis of facial form. Eighty five Korean subjects(41 men 44 women)aged between 21 to 26 were selected by members of the author's department on the basis of intact dentition and ClassⅠocclusion without facial asymmetry.Frontal and lateral photographs were taken under standardized conition with digital camera.The image was magnified and according to the FH plane of cephalometric radiograps and digitized using personal compture. To compare the Western beauty,25 estherically pleasing famale was selected to measure various angle distance of the face. 1. It was possible to calculate the mean coordinate value of Korean normal samples which enables the direct visualization and comparsion with the use of template. The method in this study was easy to applicate under the Microsoft Windows bases. 2. Maxillary vertical hypoplasia, upper and lower lip protrusion was characteristics of Korean norms and relatively narrow alar base distance,less conspicuous nasal projection was observed.As the vermilion exposure and upper lip length was more than western norm,chin looks shorter than western. To compare the Korean and Weastern estherically pleasing profile,facial convexity and nose was less conpicuous in Korean womem.
강태건,조성구 한국경영과학회 1996 韓國經營科學會誌 Vol.21 No.2
The personality types developed by Gustav jung are frequently used to identify people's decision-making style, especially to determine which functions are dominant ones in the perception and the processing of information. In this paper, the Jungian typology is utilized to investigate if there are any systematic relations between an individual's personality type and her/his attitude toward risk. For this purpose, an experiment was conducted where 99 subjects, mostly students, participated in a computer-simulated horse racing game. Each subject's risk-seeking propensity was measured by the winning chance of the selected horse and the amount of stakes. The results of the experiment show that a decision-maker who is extrovert(E) in attitude and intuitive(N) in perception of information is more likely to be risk prone than the introvert(I) and sensing(S) type. Feeling(F) function in information processing seems to induce more risk seeking attitude than thinking(T) function, but the statistical significance could not be found from the data, for this statement.
경량, 고압의 CNG 복합재료 압력용기의 설계에 관한 연구
이동건,하성규 한양대학교 공학기술연구소 1993 공학기술논문집 Vol.2 No.1
A design study of a multilayered CNG(compressed natural gas) pressure vessel subjected to high internal pressure and temperature loadings is presented Layers of the vessel are composed of aluminum liner and tar-ups of composite laminate having the lightweight, high strength and stiffness. Geometrically nonlinear finite element analysis allowing large deformations and thermal effects, is based on nonlinear shell theory and the laminate theory, is utilized for the stress analysis. Tsai-Wu failure criterion for the strength analysis is also used. The results of the stress and strength analysis are examined and discussed. Futher, design study of a multilayered pressure vessel for operating at 20MPa of internal pressure and -60℃ ∼60℃ temprature environments is presented.
최근 8년간 본교실에서 시행한 악교정수술의 임상적 검토
권대근,이상한 大韓顎顔面成形再建外科學會 1995 Maxillofacial Plastic Reconstructive Surgery Vol.17 No.1
We observed 117 orthognathic surgery cases with dentofacial deformity for 8 years from Jan. 1986 to Dec. 1993. The ratio of male female was 1 : 1.4 and the mean age was 23.0 years ranged from 16 to 35 years. The most dominant group was related to mandibular prognathism (75.0%). Surgery method were divided into 88 cases of mandible surgery, 6 cases of maxilla surgery and 23 cases of two jaw surgery. Sagittal split osteotomy were performed on 84 cases (71.8%). Rigid fixation was increased after 1989 and total percent of rigid fixation was 66%. We used autotransfusion method from 1992 to all orthognathic surgery patient. Lower lip numbness caused by Inferior alveolar nerve injury is the most common problem after operation, and it was 63 cases (53.8%) of total operation cases. In our clinic, we performed 5 cases of re-operation because of segment malaligment, condylar sag, and fixation instability.