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        • KCI등재

          몰입형 가상현실콘텐츠를 이용한 인지재활이 경도인지장애 노인의 인지 및 시지각 기능과 지루함에 미치는 영향

          유경진 ( Yoo Kyung-jin ), 김환 ( Kim Whan ) 대구대학교 특수교육재활과학연구소 2020 특수교육재활과학연구 Vol.59 No.4

          본 연구는 몰입형 가상현실콘텐츠를 이용한 인지재활이 경도인지장애 노인의 인지 및 시지각 기능과 지루함에 미치는 영향을 알아보고자 실시하였다. 대구ㆍ경북에 소재한 4곳의 재활병원 및 치매안심센터에 내원하는 대상자 64명을 무작위로 실험군과 대조군 각 32명으로 선별한 후, 실험군에게는 몰입형가상현실을 대조군에게는 전통적인 인지재활을 적용하였다. 중재는 4주간 일주일에 5회 하루 30분간 총 20회가 실시되었다. 중재 전과 후의 인지기능을 비교하기 위해 노인용 작업치료인지기능평가도구(LOTCA-G)를 사용하였고, 시지각 기능을 비교하기 위해 Motor-Free Visual perception Test 3(MVPT 3)를 지루함 정도는 다면적 지루함 상태척도(MSBS)를 사용하였다. 본 연구의 결과 인지기능과 지루함 정도는 실험군에서 통계적으로 의미 있는 향상이 있었고, 시지각은 실험군과 대조군 모두 통계적으로 의미 있는 향상이 있었다. 본 연구의 결과를 통해 경도인지장애 노인에게 몰입형 가상현실 콘텐츠를 이용한 인지재활을 적용하였을 때 경도인지장애 노인의 인지기능과 시지각, 지루함 정도에 긍정적인 영향을 미친다는 것을 알 수 있었다. 몰입형 가상현실콘텐츠를 이용한 인지재활은 작업치료에서 경도인지장애 노인의 인지 및 시지각 기능과 지루함 정도의 향상을 위한 유용한 중재 방법으로 적용될 수 있을 것이다. This study was conducted to find out the effect of cognitive rehabilitation using immersive virtual reality contents on cognitive and visual perception functions and boredom of the elderly with mild cognitive impairment. 64 subjects who visited four rehabilitation hospitals and dementia safety centers in Daegu and North Gyeongsang Province were randomly selected as 32 persons each in the subject group and the control group. Traditional cognitive rehabilitation for the control group, the immersive virtual reality applications for group. Treatment is total of 20 times a day for 30 minutes five times a week for four weeks was taken. To compare cognitive function before and after treatment, the LOTCA-G was used, and Motor-Free Visual Perception Test 3 (MVPT 3) was used to compare visual perception functions and MSBS was used to compare boredom level. As a result of this study, cognitive function and boredom level had statistically significant improvements in the subject group, and visual perception had statistically significant improvements in both the experimental group and the control group. The results of this study showed that the cognitive rehabilitation using immersive virtual reality contents to the elderly with mild cognitive impairment had a positive effect on the cognitive function, visual perception, and boredom.

        • KCI등재후보

          후천적 뇌손상환자에게 적용된 몰입형 가상현실재활에 대한 체계적 고찰: 해외투고논문 중심으로

          유경진(Yoo, Kyung Jin), 김정기(Kim, Jeong Ki) 한국보건기초의학회 2020 보건기초의학회지 Vol.13 No.2

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

          This study was conducted to learn about the research trends of immersive virtual reality rehabilitation training as it applies to acquired brain-damaged patients. This systematic review was based on overseas investment papers, and will hopefully provide basic data and evidence data for future research on arbitration programs. For analysis, the research focused on overseas research published from 2009 to 2019. Foreign databases Pubmed, CINAHL, and OTseeker were used to search for papers. The main search terms employed used a suitable combination of words such as “Imperial virtual reality”, “Rehabilitation”, “Acquired brain injury”, “Stroke”, and “Traumatic brain injury”. A total of nine studies were selected as a result of the research analysis. Seven of those studies targeted stroke patients and utilized an Oculus Rift as it's immersive virtual reality device. The arbitration period was mostly for four weeks, with an average intervention being 24 sessions. In most cases of mediation, the patients showed significant improvement in performance of both motor control and activities of daily living. Based on the research results showing the positive effects of rehabilitation training employing immersive virtual reality technology its application should be considered at rehabilitation sites in Korea. However, since there is still a lack of cases and studies that utilize immersive virtual reality at rehabilitation sites in Korea, future research will be require to be performed to discover it's full usefulness.

        • KCI등재

          저온소결 (Pb,Ca,Sr,)(Ti,Mn,Sb)O<sub>3</sub> 세라믹스를 이용한 두께진동모드 적층 압전 변압기의 전기적 특성

          류주현,유경진,김도형,Yoo,,Ju-Hyun,Yoo,,Kyung-Jin,Kim,,Do-Hyung 한국전기전자재료학회 2007 전기전자재료학회논문지 Vol.20 No.11

          In this study, a low temperature sintering multilayer piezoelectric transformer for a DC-DC converter was manufactured using $(Pb,Ca,Sr,)(Ti,Mn,Sb)O_3$ ceramics. Its electrical properties were investigated according to the variation in frequency and load resistance. The voltage step-up ratio of the multilayer piezoelectric transformer showed a maximum value at a resonant frequency of input part and increased with an increase of load resistance. The efficiency of the multilayer piezoelectric transformer showed the highest value at a load resistance of 17 $\Omega$. The output power was increased with increasing input voltage. Temperature increase of the multilayer piezoelectric transformer was increased with the increase of output power. At the load resistance of 17 $\Omega$, the multilayer piezoelectric transformer showed the temperature rises of about $20^{\circ}C$ at the output power of 18 W, and stable driving characteristics.

        • KCI등재

          벤처기업의 효율성과 재무요인이 기업의 생존에 미치는 영향 분석

          송성환(Sung-hwan Song), 권성훈(Seong-hoon Gwon), 홍순기(Soon-ki Hong), 유경진(Kyung-jin Yoo), 배영임(Young-im Bae) 한국경영과학회 2010 經營 科學 Vol.27 No.1

          There are several stage in corporate's life cycle such as foundation, growth, maturity or bankruptcy. A bankruptcy is very important for corporate in the life cycle. Especially, venture business' life cycle is short compare to other type of corporate. A lot of venture businesses have emerged and bankrupted soon in the market. Venture businesses' survival or bankruptcy have been influenced by not only external environment like the rate of exchange, oil price, and foreign exchange crisis but also internal environment such as efficiency, process, human resources, finance and CEO. In this paper, we attempt to examine financial factors and efficiency that influence on the venture businesses' survival and bankruptcy. The more venture businesses have high efficiency score, the more they have high probability of survival.

        • KCI등재

          저온소결 Pb<sub>0.76</sub>Ca<sub>0.24</sub>[(Mn<sub>1/3</sub>Sb<sub>2/3</sub>)<sub>0.04</sub>Ti<sub>0.96</sub>]O<sub>3</sub> 세라믹스의 분극전계에 따른 압전특성

          정광현,유경진,류주현,조봉희,윤현상,백동수,Chung,Kwang-Hyun,Yoo,Kyung-Jin,Yoo,Ju-Hyun,Cho,Bong-Hee,Yoon,Hyun-Sang,Paik,Dong-Soo 한국전기전자재료학회 2006 전기전자재료학회논문지 Vol.19 No.3

          In this paper, in order to develop low temperature sintering $PbTiO_3$-system piezoelectric ceramics for thickness-vibration-mode piezoelectric transformer, $Pb_{0.76}Ca_{0.24}[(Mn_{1/3}Sb_{2/3})_{0.04}Ti_{0.96}]O_3$ ceramics using $0.25\;wt\%\;CaCO_3$ and $0.2\;wt\%\;Li_{2}CO_3$ as sintering aids were manufactured according to the variation of poling field. The specimens could be sintered at $930\;^{\circ}C$. The piezoelectric properties were investigated according to the poling field. The maximum properties showed at the field of 6.5 kV/mm, which had kt of 0.49, Qmt of 1816, and $d_{33}$ of 81.4 pC/N.

        • KCI등재

          남성정장 상,하의 그레이딩에 관한 연구

          유경진,이정란,백경자 한국의류학회 2002 한국의류학회지 Vol.26 No.6

          The purpose of this study was to propose a computer-based grading method for men's formal wear according to the sizing systems based on the size and dimension whereby manufactured men's formal wear can be classified The following procedures were as follows: 1) We surveyed the sizing systems and the computer-grading methods that have been used and presently practiced by the domestic garment industry of the ready-made men's wear. 2) Using the survey data of the domestic men's ready-made clothing industry and that of the National Anthropometric Survey of Korea in 1997, we proposed the new sizing and grading systems of men's formal wear within the framework of the Korean Garment Industry's directions and the data of the domestic men's ready-made clothing industry. 3) The suitability of the new grading systems to the domestic garment industry were put to a wearing test. The findings were as follows 4) Survey of the domestic ready-made garment industry showed that each company classified its own manufactured goods according to its own sizing and grading systems. 2) The superiority of the grading systems was been demonstrated by a high approval rate of the subjects who participated in the testing.

        • KCI등재

          남성 정장 상의원형 설계에 관한 연구

          유경진,이정란 한국의류학회 2002 한국의류학회지 Vol.26 No.1

          The purpose of this study was to develop men's formal jacket pattern for the Korean males of age 25 to 34 age with an average physique. Through the survey on seven industries of the ready-made men's wear, we investigated size systems and jacket patterns presently practiced. From the fitting test of four patterns (three for ready-made jacket patterns, one for educational pattern) the most favorable and comfortable pattern was selected. New experimented jacket pattern was based on it. The findings were as followed : 1) Survey of the domestic ready-made garment industries showed that each company classified its own manufactured goods according to its own size systems. 2) Anthropometric measurments of forty males for the subjects of fitting test were agreed to the survey of National Anthropometric of Korean(1997). These were also compatible to the standard size (100-88-175) of investigated industries. 3) Experimental jacket pattern was completed through the three times rectification and it gained higher ratings.

        • KCI등재

          Anticentromere 항체가 검출된 CR(E) ST Syndrome 1 예

          이경식,정진민,서정민,김호연,문한림,백상홍,김동집,유경진 대한내과학회 1987 대한내과학회지 Vol.33 No.4

          The CR(E)ST syndrome is a varient of limited cutaneous scleroderma and is characterized by calcinosis, Raynaud`s phenomenon, (esophageal dysmotility), sclerodactyly, telangiectagia. Sera from patients with scleroderma contain several autoantibodies to nuclear antigens which are distinguished by different pattern of nuclear immunofluorescence staining. One of these autoantibodies reacted with centromeric region of chromosomes. The anti-centromere antibody appeared to be highly selective for the CR(E)ST varient of progressive systemic sclerosis. Therefore, the diagnostic significance of centromere immunofluorescent pattern is now generally accepted. This case, as far as we know, is the first reported case of anti-centromere antibody in CR(E)ST syndrome in Korean literatures.

        • Cefotetan 의 임상경험

          홍대식,유경진,이현재,이용관,송춘익,정희영,강문원,신완식 대한감염학회 1985 감염 Vol.17 No.2

          The new cephamycin-type antibiotic, cefotetan is very stable to β-lactamase, it possesses a good antibacterial activity on aerobic and anaerobic gram-negative cocci and bacilli. Clinical values of cefotetan were evaluated in 26 patients with a clinical diagnosis of bacterial infection of the urinary, respiratory and gastrointestinal tract. The drug was administered intravenously in dose of 1∼4g per day for 1 to 16 days. The clinical response was satisfactory in 11(100%) patients with urinary tract infections, 8(61.5%) of 13 patients with respiratory tract infections, 2(100%) patients with gastrointestinal tract infections. Overall, cefotetan was effective in 21(80.8%) of all patients treated. During the treatment 5 patients showed adverse effects including nausea, diarrhea, skin rash, drug fever. And elevation of hepatic enzyme levels occured in 1 of all patients treated. But the majority of adverse effects disappeared within 2∼3 days.

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