사용자 인식 스마트 홈 미러

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.

Pseudomonas sp. EL-041 LY와 Alcaligenes sp. EL-041 LW에 의한 Polyvinyl Alcohol의 분해에 관한 연구

이상준,이종근,이건 부산대학교 환경문제 연구소 1988 環境硏究報 Vol.6 No.-

Twenty microorganisms capable of biodegradation of polyvinyl alcohol(PVA) were isolated from the waste water by the enrichment culture technique. The strain which had the highest biodegradability was designated as EL-041 L in PVA minimal medium. The strain were found out to be symbiont composed of two kinds of bacteria from the results of pure isolation in nutrient plate and effect of surface area of plate of PAV medium. These isolated strains which had two different kinds of bacteria were designated as EL-041 LY and EL-041 LW. The results experimented on the identification of these isolated strains EL-041 LY and EL-041LW, on the growth characteristics and degradation rate of PVAs, on the oxidation test on PVA compounds and metabolic products formed from PVA by these isolated strains, were as follows. 1.These isolated strains EL-041 LY and EL-041 LW were identified as Pseudomonas and Alcaligenes from the results of bacteriological identification tests. These isolated strains were named temproarily Pseudomonas sp. EL-041 LY and Alcaligenes sp. EL-041 LW for convenience, respectively. 2.The optimal condition of medium for growth and degradation was observed as follows:the initial pH of medium was pH 7.5 ammonium nitrate 0.2% was selected for the source of nitrogen, PVA 0.2% was selected for the carbon source. The degradation rate of PVA 22000 was about 52.1%. Growth on the effect of PVA polymerization grade was showed that degradation rate of lowest PVA polymerization grade, PVA15000(300), was about 68%. The comparision of mixed and pure culture was showed that the one was optical density 0.72 growth rate at 660nm, the other was 0.17 growth rete. 3.Oxidation test was showed the most oxygen uptake to the PVA 100000 substrate of low growth rate. When oxygen uptake was compared with between resting cells of the grown on PVA medium and that of on PVA medium using 0.5% polypeptone as nitrogen and carbon source, only PVA-grown cell could oxidize PVA. This fact coincides with the result of effect of substrate of culture on PVA degradation and suggests that PVA is oxidatively degraded by PVA-grown cells. 4.On the thin layer chromatograph, the metabolic products formed from PVA 22000 by symbiont strains, EL-041L, used as sole carbon and energy soure, were suspected one acidic compounds containing carboxyl group the other alkalic compounds containing ketone group, but both not containing amine group.

실크 생지직물의 정련발염날염에 관한 연구

박건용,박창혁,서기성,김재현,김동철 호서대학교 반도체제조장비국산화연구센터 2001 반도체장비학술심포지움 Vol.2001 No.-

실크 생지직물에 대해 정련날염호로 무늬를 인날하고 증열 처리함으로써 무늬 부분만 정련이 되도록 하는 정련날염 기술을 개발하여 모시 섬유와 같이 뻣뻣하면서 시원한 질감이 나는 정련되지 않은 생직물 부분과 정련에 의해 유연하고 매끄러우면서 광택이 나는 비단 부분이 동시에 한 직물에 공존하면서 입체적인 무늬 표현이 가능한 독특하고 새로운 실크 직물을 개발하였다. 또한 산성염로 등의 합성염료로 염색된 실크 생지직물과 천연염fy로 염색된 실크 생지직물에 대해서 정련날염과 동시에 무늬 부분의 바탕색을 빼내고 착색을 고착시키는 발염의 특수날염 기술을 개발하여 다양한 색상에 의한 무늬 표현이 가능하게 함으로써 고부가가치 실크직물을 생산할 수 있도록 되었다.

빌트인 모터를 이용한 2축 제어 미세 가공기 개발

김건희,김효식,양순철,이상용,국명호,이선규,김윤중,홍권희 한국공작기계학회 2007 한국공작기계학회 추계학술대회논문집 Vol.2007 No.-

This paper describes development of low cost precision machine that has combined the Build-in Motor with a vacuum chuck. This study mainly aims to find out a cutting condition for maintaining optimum surface condition and to examine cutting characteristics of the precision machine that is equipped by diamond bites. The cutting materials is Al alloy. Several experiments were carried out to find out the main factors that affect the surface roughness such as principal axis RPM(rotation per minute), feeding speed, and cutting depth. As a result, we obtain The optimum cutting condition of the developed precision machine.

신체활동이 지체장애인의 자아정체감에 미치는 영향

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.

의사결정 상황에 따른 위험태도 분석

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'.

Ferroxplana Y-type(Ni₂Y) 磁性 분체의 합성 및 자기적 특성

박상하,사공건 東亞大學校 1993 東亞論叢 Vol.30 No.1

In has been prepared by a coprecipitation method for Ferroxplana Ni₂Y(Ba₂Ni₂Fe O ) magnetic particles, which is one of the hexagonal ferrite. The coprecipitates were synthesized by adding aqueous solution of BaCl₂·2H₂O, Nicl₂·6H₂O and FeCl₃·6H₂O(of which the mole ratio is Ba²+:Ni²+:Fe³+=1:1:6) to a mixture of NaOH and Na₂CO₃ solution. The shape of Ferroxplana Ni₂Y magnetic particles obatined at the calcined temperature 1,100(℃) was hexagonal plate-like, average particle size was 2(m), and aspect ratio was more than 7.

ABC 도입기업의 경영성과 비교분석에 관한 연구

兪日根,崔誠鎬 弘益大學校 科學技術硏究所 2005 科學技術硏究論文集 Vol.16 No.-

The purpose of this research is to develop the estimation index that measures the effect of ABC's introduction through comparison and analysis of management outcomes between companies that have introduced ABC or not. This research can be of help to basicially understand the activity-based-costing using literatures of the inside and outside of the country. Also several financial ratios, such as an amount of money on economically a value added, distribution ratio of product cost are used to develop estimation index. As well, through the result of this research, we can know that the introduction of ABC would bring postive effects of enterprise's outcomes Moreover, the estimation index developed in this research can be used when the the enterprises that have already introducted or will introduce the ABC evalute the effect of ABC's introduction.

合成온도에 따른 Ni-Zn 페라이트의 磁氣的 特性

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.