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.

산주의 삼림투자 인식에 관한 연구 : 강원도지역을 중심으로

서영완,최종천 강원대학교 삼림과학연구소 2000 Journal of Forest Science Vol.16 No.-

일반산주와 임업후계자 · 독림가의 산림 투자 인식을 비교분석한 결과 다음과 같이 임 · 독림가가 일반산주보다 산림투자에 대하여 상대적으로 높은 관심을 보이고 있었다. 1.일반현황의 비교에서 임 · 독림가가 일반산주보다 교육수준과 월평균소득 면에서 높게 나왔으며, 직업의 경우 임 · 독립가는 다양한 직종에 종사하고 있는 반면 일반산주는 농업에 편중되어 있는 것으로 나타났다. 2.산림의 소유동기에서 임 · 독림가의 경우 일부상속 · 일부매입이 41.2%로 가장 많은 반면, 일반산주의 경우는 선대로부터의 상속이 40.9%로 가장 많았다. 3.산림투자에 대한 산주태도에서 임 · 독림가가 일반산주보다 과거 5년동안 산림투자 경험과 정부지원 신청경험 모두 높게 나타났다. 4.정부지원 제도에 대한 인식에서 일반산주보다 임 · 독림가가 정부지원 제도에 대하여 상대적으로 많이 알고 있는 것으로 나타났으며, 정부지원 제도의 실행상태에 대해서는 임 · 독림가와 일반산주 모두 '그저 그렇다'는 미온적인 반응을 가장 많이 보였다. The study is focused on comparing the perception of forest investment by two types of forest owners, ordinary forest owners (OFOs) and forestry successors and model forest owners(FSMFOs). The results show that FSMFOs' perception of forest investment is relatively high compared with OFOs' perception The details are as follows ; 1.In the general status, the education and income levels of FSMFOs are higher than those of OFOs, and FSMFOs are engaged in various kinds of jobs while OFOs are inclined to lean toward farming. 2.Of the motives to own forests, partial-purchase and -inheritance is the most of FSMFOs(41.2% ) and inheritance the most of OFOs (40.9% ) 3.The number of FSMFOs who had made forest investment and applied government support is more than that of OFOs. 4.FSMFOs know government support better than OFOs do, while both show lukewarmness on weather the support is carried out according to the rules. Key words : forest investment, forestry successor, government support

정보통신시장 유무선 통합서비스 도입과 기업 대응전략

송영화,류완하,김갑식 한국정보시스템학회 2004 情報시스템硏究 Vol.13 No.1

Fixed-mobile convergence services can be defined as the combination of previously separate fixed and mobile services, and networks and commercial practices. Examples of fixed-mobile convergence services include single voice-mail box, single number and unified messaging across fixed and mobile networks. Recently as more voice is transferred to mobile networks, convergence services between fixed and mobile become more important. In Korea convergence services are only starting to become established, and are likely to become an important part of any operator's offering. In this paper, we search the different levels of fixed-mobile convergence services and the trends and regulations for fixed-mobile convergence services in major countries. And at the same time, we also suggest the corresponding Marketing strategies by operators related to fixed-mobile convergence services.

總括生産計劃에서 適定 퍼지수 比較法의 選擇에 관한 硏究

李相玩,朴永和,南賢祐,尹延根 동아대학교 공과대학 부설 한국자원개발연구소 1992 硏究報告 Vol.16 No.1

When using any of the aggregate production planning techniques mentioned in previous studies, it is generally assumed that the inputs of information are deterministic and easy to generate. However, the problem is more complex if the criteria and informations are expressed imprecisions. Therefore, it requires suitable method to deal with imprecisions. For select proper comparison method of fuzzy numbers in aggregate production planning with imprecise informations or criteria, this study use Dubois & Prade fuzzy number comparison method and Li-Lee fuzzy number comparison method among comparison methods fuzzy numbers. And then, proper method between two methods is selected. Also it is presented illustration.

일부 종합병원 간호사에서 근골격계 자각증상과 관련 요인

김영옥,구정완 가톨릭대학산업의학센타 산업의학연구소 2002 韓國의 産業醫學 Vol.41 No.3

This study examined the influences that are made on the nurses' subjective symptoms of musculoskeletal system. The subjects were 626 nurses who worked for over 1 year at 5 general hospitals located in Seoul and KyeongKi Province. A standardized questionnaire asking nurses' subjective symptoms of musculoskeletal system was used. The collected data were statistically analyzed. The results were as follows: 1. As to nurses' complaint rate of subjective musculoskeletal symptoms by body region, the figure was the highest for upper/lower back with 87.2%, followed by shoulder 86.6%, leg/knee/ankle/foot 84.1%, neck 76.2%, and arm/wrist/hand 61.1% respectively. 2. Among the nurses who have under 2 years of experience at present, the complaint rate for upper/lower back was 92.0%. Among the nurses who have over 10 years of career at present, the complaint rate for shoulder was 100.0%, upper/lower back 94.1%, and leg/knee/ankle/foot 94.1%. For the nurses who have 5∼10 years of career at present, the complaint rate for shoulder was 89.7%, leg/knee/ankle/foot 85.6%, and neck 80.2%. 3. With regard to nurses' complaint rate according to their posts, the upper/lower back complaint rate of those who work at the hospice ward was 100.0%, at the emergency room 93.3%, and at the intensive care unit 91.5%. The shoulder complaint rate of those who work at the delivery room was 93.3%, the intensive care unit 91.5%, and the hospice unit 85.7%. The leg/knee/ankle/foot complaint rate of nurses who work at the hospice ward was 100.0% and at the delivery room and the nursery room 88.2%. The arm/wrist/hand complaint rate of nurses who work at the delivery room was 68.8% and at the intensive care unit 65.1%. The neck complaint rate of those who work at the emergency room was 87.8%, at the hospice ward 85.7%, and at the delivery room 82.4%. 4. With regard to nurses' musculoskeletal symptoms, the correlation with the variables including marital status, existence and nonexistence of housework assistants, family dependents, and average housework-time was not significant. A significant difference was found in cases where they are older or younger than norm, they work in special divisions, their breaktime is too short, or the work system is a 3-shift one(p<0.01) . 5. The cure rate for musculoskeletal symptom was 13.0%; the rate of absence from work was 2.4%. As for countermeasures for improvement of symptoms, the rate of relaxation was 82.6%, that of work-place or work post 1.4%, and the other cases occupied 2.0%. The rate of working difficulties was 12.2%; the rate of past complaints 23.2%. In conclusion, musculoskeletal complaints of the subjects were in order of back, shoulder, leg, wrist, and neck. The symptoms were affected by age, working career at the present department, the entire working career, working department, resting time, and the 3-shift system.

교차종속관계하에서의 중소기업 평가를 위한 Fuzzy 다기준의사결정법

박영화,이상완 한국경영과학회 1997 經營 科學 Vol.14 No.1

This paper presents the better efficient evaluation of the Small and Medium Enterprises by use of fuzzy multi-criteria decision making methodology under intersectional dependence relations. The five Small and Medium Enterprises alternatives will be evaluated by Fuzzy Analytic Hierarchy Process(FAHP) based on entropy weight in this study. A case study is presented to illustrate the use of entropy weight measurement with intersectional dependence problems. These problems are evaluated seven criteria : market criteria, technology criteria, management ability criteria, planning criteria, propulsion ability criteria, project propulsion basis criteria, propulsion result criteria.

카바메이트 중독에 의한 급성췌장염 1례 : 증례보고 A case report

이영실,강승완 동국대학교 경주대학 1998 東國論集 Vol.17 No.2

카바메이트계 살충제는 임상적 작용은 유기인계와 비슷하지만 독성은 상대적으로 약하다. 카바메이트 중독에 의한 급성췌장염은 증상이 대개 경하나 드물게 심한 합병증을 초래할 수 있다. 이러한 합병증은 아트로핀의 조기 사용에 의해 피할 수 있다. 따라서 카바메이트 약물 중독환자에서 췌장 효소 측정 및 주기적 방사선학적 검사가 필요하며, 이를 통해 급성 췌장염을 빨리 인지함으로써 치료 및 예후를 향상시킬 수 있다. 저자들은 카바메이트 약물 중독으로 인한 급성췌장염을 경험하고 조기에 아트로핀을 투여하여 치료한 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Carbamate insecticides produce a clinical picture of cholinergic excess similar to that of organophosphate toxicity. Pancreatitis secondary to carbamate insecticide toxicity is extremely rare but pancreatitis to organophosphate is relatively common and a few cases are previously reported. Poisoning by anticholinesterase insecticide was suspected by the observation of pinpoint pupils, the increased salivation, muscle fasciculations and mental confusion. We encountered a case of acute pancreatitis related to carbamate toxicity. A 34-year-old man was admitted to the Dongguk University Pohang Hospital for attempted suicide by ingestion of a carbamate insecticide (Huradan^ⓡ). There were no gallstone, alcohol intake history, drug ingestion influenced in pancreas except carbamate ingestion. Lipase was increased to 735 U/L, amylase to 939 U/L, ACCR 4%. Pancreatic CT findings were grade A of acute pancreatitis. Carbamate pesticides share the same risk of pancreatitis as organophosphorus pesticides and should be monitored similarly. We suggest that carbamate intoxication patients are monitored carefully by determination of pancreatic enzyme serum levels and serial ultrasonographic studies. Early recognition of acute pancreatitis in these patients may improve management and outcome.

수근중수관절 탈구 : 1예 보고 A Case Report

황완영 최신의학사 1979 最新醫學 Vol.22 No.8

都市近郊農家의 農業經營形態에 관한 硏究

金再洪,申東完,愼鏞仁,權容大 韓國農業政策學會 1992 농업경영정책연구 Vol.19 No.1

치아회분과 석고혼합제재의 물성에 관한 연구

계기성,강동완,김광수,고영무,김윤주 대한치과기재학회 1998 대한치과재료학회지 Vol.25 No.1

The purpose of this study is to evaluate the use value of tooth ash-plaster mixture as an alternative material of the synthetic hydroxyapatite. For this purpose the author performed the experimental study to investigate the physical properties of sintered tooth ash-plaster mixture. The tooth ash was made by increasing procedure at 850℃, 900℃ and 950℃ for 20min, 40min and 60min respectively. The composition of tooth ash was analyzed using ICPSE and X-ray diffraction was done. The experimental specimens were molded to the cylindrical from 10mm high, 5mm diameter under the pressure of 1,000kg/㎠ for test of compressive strength values and 3mm high, 6mm diameter for test of diametral tensile strength values and surface microhardness values. Mixtures of tooth ash-plaster mixture was vacuum fired at 1,000℃ for 60min. The physical properties of the sintered specimen were examined and their microstructures were observed under the scanning electron microscope. The results were as follows: 1. x-ray diffraction showed the crystallization of tooth ash was developed as the incinerating temperature and time were increased, but the phase transformation following the incinerating temperature and time was not occurred. 2. The values of compressive strength of the sintered tooth ash-plaster mixture were the highest in case of incinerating temperature 950℃, the incinerating time 60min, and the tooth ash-plaster mixing weight ratio of 4:1. The higher tge incineration temperature and the longer the incineration time was, the more increased the compressive strengths were(p<0.01). 3. The values of diametral tensile strength of the sintered tooth ash-plaster mixture were the highest in case of the incinerating temperature 950℃, the incinerating time 60min, and the tooth ash-plaster mixing weight ratio of 4:1. The higher incineration temperature and the longer the incineration time was, the more increased the diametral tensile strengths were (p<0.01). The more decreased tooth ash-plaster mixing ratio was, the more increased the diametral tensile strength was, but there was not a significant difference statistically (p<0.01). 4. The values of surface microhardness of the sintered tooth ash-plaster mixture were also the highest in case of the incinerating temperature 950℃, the incinerating time 60min, and the tooth ash-plaster mixing weight ratio of 4:1. The higher the incineration temperature was, the more increased the surface microhardness values were, but there was not a significant difference statistically(p<0.01). The longer the incineration time was and the more decreased the tooth ash-plaster mixing ratio was, the more increased the surface microhardness values were. 5. The porosity and absorption of the sintered tooth ash-plaster mixture were the highest in case of the incinerating temperature 850℃, the incinerating time 20min, and the tooth ash-plaster mixing weight ratio of 3:1. The lower the incineration temperature was and the shorter the incineration time was, the more increased the porosity was. 6. There was a good wettability in the sintered tooth ash-plaster mixture under the scanning electron microscope.