• 한국통신학회논문지
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• 제40권9호
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• pp.1808-1818
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• 2015

최근 신재생 에너지 중 각광을 받고 있는 풍력 발전의 경우 경제성 및 효율성을 높이기 위하여 대부분의 풍력 발전단지들이 해상에 조성된다. 그러나 풍력단지 관리자가 해상에 설치된 풍력발전기에 접근하기 위해서는 헬기 또는 보트를 이용해야하며 많은 비용과 시간을 필요로 한다. 이러한 유지 및 관리 비용을 감소시키기 위한 하나의 대안으로써 풍력발전기의 원격 모니터링 및 제어 기술이 요구된다. 본 논문에서는 풍력발전기의 상태 정보 계측 및 원격 제어 기능을 제공하는 무선 센서 네트워크 기반의 풍력발전기 모니터링 및 제어 시스템을 구현한다. 이를 위해 다수의 센서를 풍력발전기에 설치하여 실시간으로 상태를 계측할 수 있도록 하고 제어 장치를 통해 원격 제어가 가능하도록 한다. 풍력발전기의 센서 장치 및 제어 장치는 무선 센서 네트워크를 통해 제어 센터와 계측 데이터 및 제어 데이터를 주고받도록 한다. 제어 센터에서는 GUI 기반의 모니터링과 제어 기능을 제공하는 중앙 집중형 모니터링 프로그램을 통해 풍력발전기를 관리한다. 또한 제어 센터 이외의 지역에서 원격으로 풍력발전기 모니터링이 가능하도록 스마트 단말기 기반의 웹 프로그램을 구현한다.

• 융합정보논문지
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• 제7권4호
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• pp.171-183
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• 2017

본 연구는 간호대학생의 취업 스트레스에 영향을 미치는 융합적인 요인들을 파악하기 위하여 시도하였다. 서술적 조사연구로 자료수집 기간은 2016년 9월 10일부터 10월 30일까지 실시되었다. 연구 대상은 4년제 간호대학에 재학 중인 간호대 학생 246명이였으며 구조화된 질문지를 배부한 후 회수하였다. 측정 도구는 전공만족도, 진로 결정 효능감, 자아존중감, 자아 탄력성, 취업 스트레스에 관한 문항으로 구성되었다. 전공만족도, 진로 결정 효능감, 자아존중감, 자아 탄력성, 취업 스트레스 정도는 기술통계로 분석하였고 제 변수들 간의 상관관계는 Pearson correlation coefficients, 취업 스트레스에 영향을 미치는 요인은 다중 선형 회귀분석(Multiple linear regression)을 적용하였다. 취업 스트레스는 전공만족도, 진로 결정 효능감, 자아존중감, 자아 탄력성과 유의한 부적 상관성이 있는 것으로 나타났다(r=-.237, r=-.218, r=-.491, r=-.229, 학년(${\beta}=.498$), 자아존중감(${\beta}=-.456$), 학업 성취도(${\beta}=.233$), 임상 실습경험(${\beta}=.166$), 경제 수준(${\beta}=.118$) 순으로 유의미한 영향을 주는 것으로 나타나 취업 스트레스의 46.1%를 설명하였다. 본 연구 결과를 토대로 간호대 학생들의 취업 스트레스 관리 프로그램 개발에 활용할 수 있을 것이다.

• 한국조사연구학회지:조사연구
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• 제7권2호
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• pp.1-38
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• 2006

한국인이 생각하는 행복의 구성요소를 파악하고, 이를 바탕으로 행복지수 공식을 개발하기 위해 FGI(6l명)와 설문조사(1,503명)를 실시하였다. 연구결과 16개의 행복요인이 도출되었고, 이들 요인을 Alderfer(1972)의 생존 관계 성장 욕구위계 이론에 따라 3요소로 재분류한 뒤, LISREL을 이용하여 측정 모형에 의한 가중치를 분석하였다. 그 결과, 한국인의 행복지수 공식은 '행복=2.5*생존+2.5*관계+5*성장'으로 나타났고, 공식에 따른 한국인의 행복점수는 평균 57.71로 나타났다. 성별로는 여성보다 남성이 더 행복하다고 지각하고 있었고, 연령대에 따른 차이는 나타나지 않았다. 지역별로 살펴보면 서울과 대전 지역이 다른 지역보다 행복한 것으로 나타났고, 경제수준에 따라서는 250만원을 기준으로 행복감에서의 두드러진 차이를 보였다. 또한 행복점수에 따라 상위 33%(즉, 행복하다고 느끼는 집단)와 하위 33%(즉, 불행하다고 느끼는 집단)을 구분하여 평균차이를 분석한 결과, 생존과 관계요소에서의 차이보다는 개인적이고 심리적인 요인인 성장요소에서 큰 점수 차이를 보였다. 따라서 생존 요소와 관계 요소보다는 성장요소가 한국인의 행복감 지각에 상대적으로 더 큰 영향을 미치고 있는 것으로 해석할 수 있다. 마지막으로 한국인의 행복을 위한 제언을 소개하였다.

• 대한가정학회지
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• 제8권1호
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• pp.198-215
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• 1970

The basic purpose of this study is to explore the household economic effects on home administration. The major goals of home administration is to promote mental and physical welfare of the family members. In order to realize mental and physical welfare, the stability and satisfaction is needed. And to promote stability and satisfaction, the efficiency must be accomplished and the efforts is required. So the four variables to measure home administration situation are as follows. 1) The degree of the stability 2) The degree of the efficiency 3) The degree of the efforts 4) The degree of the satisfaction. The factor of Household economic level is the size of the family's money income. Although size of income is not the bases for either standard of living or Socioeconomic status, it is closely related to both. To solve this problem. Some hypotheses are specified as follows. Hypotheses I The degree of the stability is different among the groups by income level. The group which is high income level will be more stable than low income level. Hypothesis II The degree of the efficiencies different among the groups by income level. The group which is high income level will be more efficient than low income level. Hypothesis III The degree of the efforts is different among the groups by income level. The group which is high income level will more effort than low income level. Hypothesis IV The degree of the satisfaction is different among the groups by income level. The group which is high income level will feel more satisfaction than low income level. In order to test those hypotheses random selection of 190 subjects from the four girls high schools in Seoul was made, and the parents of the students reported their home administration situation. The results of this study show that; 1) the group which is high income level revealed more stability than low income level. The differences of each group are revealed very significant. 2) The differences of the degree of the efficiency among the groups are unsignificant. 3) the group which is high income level revealed more effort than low income level. The differences of each group are revealed significant. 4) The group which is high income level revealed more satisfaction than low income level. The differences of each group are particularly significant. So the conclusion can be drawn from this study. Every group by income level revealed significant differences in home administration. So the household economy greatly effects on home administration.

• 수산경영론집
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• 제39권2호
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• pp.81-108
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• 2008

Since the declaration made by UN Convention on the Law of the Sea on EEZs, The open seas of Northeast Asia, considerd as a convention area, needed new agreements in conformity with the changes brought by the introduction of the Exclusive Economic Zone(EEZ) system. The Contracting Parties of these agreements set up their own EEZs, which extend certain ranges from their baselines, Fishing in the other party's EEZ is done based on mutual agreements, which take into account traditional fishing activity in the zones. Seperate fishries management systems, in accordance with the relevant legal status of the waters, are applied to individual overlapping areas: Middle Zone in the Bast Sea and the waters south of jeju Island, Interim Measure Zone in the Yellow Sea and East China Sea, and the Transitional Zone in the Yellow Sea. They decided to conclude fisheries agreements as the provisional agreement under Article 74(3) of the UN Convention before the delimitations of the EEZs to avoid the territorial disputes. China and Japan concluded the Fishries Agreement in the November 1997, allowing each coastal State 52 mile EEZ. it was followed by Korea and Japan in September 1998, reaching a final compromise. And also Korea and China came to a satisfactary settlement in November 1998. Fisheries agreements have been established between the three North-east Asian States, the agreement are all bilateral. That implies inefficient resource management on the overlapping waters of the three states, especially on the East China Sea. The Korea-Japan Fisheries Agreement and the China-Japan Fishery Agreement worked as governing rules in the North-east Asian seas before the establishment of EEZs (Exclusive Economic Zones). However the conclusion of the bilateral fishery agreements, Korea China and Japan have developed EEZs, and these three countries have competed for the exploitation of fisheries resources. Therefore, the issue of fisheries resource management was no longer a single countries' problem and emerged as a common issue facing these three countries. In recognition of the above-mentioned problem, it is needed for the construction of cooperative System fishery management in the North-east Asian seas. Therefore, cooperative measures should be establishied. The final goal of the construction of fisheries management cooperative system is to establish sustainable fisheries in the North-east Asian seas. However, there is a big difference in fisheries management tools, fishing gear, exploitation rate of species, etc. This implies that a careful approach should be taken in order to achieve the cooperative fisheries management among Korea, China and Japan. conclusionly, the Governments of Korea, China and Japan should complement three bilateral agreemens, and which they prepares to 'Fisheries Resource Restore Program' Between Korea, China and Japan in the adjacent waters south of Jeju Island.

• 대한지역사회작업치료학회지
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• 제9권2호
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• pp.1-12
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• 2019

목적 : 본 연구는 노인의 일상 활동 범주에 따라 보유하고 있는 활동 수준을 확인해보고 일상 활동범주에 따른 차이를 비교해보고자 하였다. 연구방법 : 지역사회에 거주하면서 경제 활동을 하는 노인 30명과 경제 활동을 하지 않는 노인 30명, 시설에 거주하면서 활동을 할 수 있는 노인 30명을 대상으로 한국형 활동분류카드(Korea Activity Card Sort; K-ACS)를 사용하여 활동 보유 수준을 비교하였다. 또한 노인의 활동 수준과 상관이 있는 일반적 특성과 일상 생활 특성을 확인하였다. 결과 : 대상자의 일상 활동 범주에 따른 활동 보유 수준은 통계적으로 유의한 차이가 있었다(p<.001). 수단적 활동에는 각 활동의 범주에 따라 차이를 보이는 반면 여가활동과 사회활동에서는 세 그룹이 비슷한 양상을 나타내었다. 특히 여가 활동에서는 세 그룹 모두 휴식하기와 텔레비전 보기를 가장 많이 하고 있어 우리나라 노인의 여가 활동이 매우 제한적인 것을 확인할 수 있었다. 또한 일반적 특성 중에는 학력, 결혼상태, 종교와 인지 수준이, 일상 활동 특성 중에는 받고 있는 치료와 규칙적인 운동 및 정기 모임 횟수가 노인의 활동 영역과 상관성이 있는 것으로 분석되었다. 결론 : 노인의 일상 활동 범주에 따라 활동 보유 수준은 차이가 있었으며 일반적 특성 및 일상 활동 특성이 노인의 활동 영역과 상관이 있음을 알 수 있었다. 이는 노인 작업치료 시 노인의 일상 활동에 영향을 미치는 특성과 활동보유 수준을 고려하여 클라이언트 중심의 중재 계획을 수립하고 치료적 활동을 계획하기 위한 기초자료가 될 수 있을 것이라 사료된다.

• 현장농수산연구지
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• 제12권1호
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• pp.137-150
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• 2010

1. Lwang은 해발 1,200m 정도의 산악지역으로 일교차가 크고 햇볕의 양이 많은 지역으로 토양산도는 차재배에 이상적인 pH(H₂O)가 평균 5.60이다. 2. pH(KCL) 4.26으로 이상적이다. 그러나 두 pH 차이가 1.34으로 심한 양분 부족 현상을 보이며 토양 EC가 0.05 mS/cm로 심각한 토양 수탈현상을 보이고 있다. 3. 토양의 산화환원전위(ORP)는 393mV로 아주 이상적인 토양을 보이고 있다. 토양산도와 함께 산화환원전위(ORP)는 좋은 유기농 차를 만드는데 큰 역할을 하고 있다. 4. 차는 연중 양분(養分)을 흡수하고 있는데, 측정 결과는 전 항목에서 심한 양분의 부족현상을 보여 향후 유기물의 투입이 요구되고 있다.

• 재활간호학회지
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• 제4권1호
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• pp.46-57
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• 2001

This study was done to investigate of instrumental activities of daily living(IADL) and quality of life and their relationships between the elderly. Data were collected from 150 elderly home residents. The data were collected from December 1st to December 20th, 2000. Structured questionnaires developed by Lawton & Brody and by Ro were adopted to measure IADL and Quality of life. Data were analyzed for percentage, means, t-test, ANOVA and Parson correlation coefficients using the SPSS program. The results were as follows: 1. The average score of the level of IADL was $20.68{\pm}2.98$ ($M{\pm}SD$) with a range of 7-26. 2. The average score of the level of Quality of life was 2. $96{\pm}0.25$ ($M{\pm}SD$). In the average score of each lower area, highest score was 3.22 for neighbor relationship and family relationship and then 3.00 for self-esteem, 2.95 for economic status, 2.86 for emotional status, and 2.85, lowest score, for physical condition and function. 3. Comparing IADL and Quality of life with general characteristics, IADL showed that there were significant difference in age(t=2.927, p=0.036) and separated children contact frequency(t=2.482, p=0.046), while Quality of life showed that there were significant difference in spouse existence(t=2.334, p=0.021), religion(t=4.089, p=0.008), family style(t=3.285, p=0.040), children number living together(t=5.332, p=0.006), communication with separated children frequency(t=4.129, p=0.003), and separated children contact frequency(t=3.908, p=0.005). 4. There was also significant positive correlation between IADL and Quality of life. The above results show that neighbor relationship and family relationship which have greatly an influence on IADL and Quality of life are very important. The elderly should be helped to satisfy their basic desire and show their potential living together with the younger generation interdependently without being isolated from family and society. Therefore, the nursing strategy that enhance IADL and Quality of life are needed and the nursing strategy that can improve IADL and Quality of life of Elderly Home Residents should be developed.

• 대한가정학회지
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• 제20권1호
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• pp.65-77
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• 1982

The intent of this study was to focus attention on the relationship between curtain fabrics and consumer perceptions towards curtains and draperies. This study consisted of the laboratory test for thermal transmittance of selected fabrics and the exploratory survey for consumer perceptions towards curtains and draperies. The objectives of the laboratory test were to measure fabric's thermal transmittance, thickness, and count which affect to the effect in heat controlling. Selected 23 fabrics were tested at Korean Yarn and Fabrics Testing Inspection Institute. The objectives of the exploratory survey were to determine sociodemographic factors; the stage of family life cycle, the economics status, and homemaker's level of education, and physical factors; the type of houses, the direction of windows, and the type of windows, affect consumer perceptions toward curtains and draperies. Questionaires were administered to 489 homemakers selected by a stratified propotional sampling plan, in Seoul in October, 1981. Data from responses were analyzed by T-test(Analysis of Varience) and Partial Correlation. The major findings are as follows; 1. The results of the laboratory test 1) The fabrics used for draperies had higher effect in heat controlling than the fabrics used for glass curtains. 2) It did not show much differences among the fibers in heat controlling. The thicker fibers, however, had the higher effect in heat controlling among same fibers. 3) The fabrics which had high level of effect I heat controlling were corduroy, flax, rayon, nylon, acetate, thick polyester, and thick polyacrylic. The fabrics which had midium level of affect in heat controlling were velveteen, velvet, and thin polyester. The fabrics which had low level of effect in heat controlling were cotton, silk, and thin polyarcylic. 4) The draperies with lining showed 2∼5 times more effective in heat controlling than the draperies without lining. 2. The results of the exploratory survey Consumer perceptions towards curtains and draperies consisted of functional, financial, and aesthetic perception. 1) Factor affecting functional perception towards curtains and draperies was the stage of family life cycle. Families in the contracting stage considered function of curtains and draperies significantly better than those in others stages. 2) Factors affecting financial perception towards curtains and draperies were the economic status, homemaker's level of education, the direction of windows, and the type of windows. However the correlation between the factors and financial perception was too low to explain the significance of tendency. 3) There was not any factors affecting aesthetic perception towards curtains and draperies.

• 대한간호학회지
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• 제29권3호
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• pp.605-613
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• 1999

The main purposes of this study were to determine the time interval between the onset of symptoms of myocardial infarction and treatment-seeking time and to identify the factors related to the interval time. This study used a retrospective design. The sample consisted of 45 patients aged over 30 who were diagnosed with an acute myocardial infarction at two large university affiliated medical center from September 1, 1997 to June 30, 1998. Data was collected by using questionnaries, which included demographic data, permonitory clinical signs and symtoms of myocardial infarction, and a measure of the severity of the signs and symptoms. Also semi-structured interviews and chart reviews were used to obtain information related to treatment-seeking time. The results of this study are summarized as follows ; 1. The most frequent premonitory clinical symptom was chest pain(92.9%), the second, was perspiration(81.0%), and the next were nausea(40.5%) and dyspnea(38.1%). Thirty two patients reported having more than four premonitory signs and symtoms. Patients described the characteristics of chest pain as “somethings very heavy pressing down”(26.2%), “felt like my chest would burst”(24.4%), or “sharp pain”(16.7%), Over 95% of the sample reported having chest pain. 2. Twenty two (52.4%) patients reported to have “very severe” premonitory pain. 3. The mean time interval between the onset of signs and symptoms and the arrival at the medical center was 6.39$\pm$10.80 hours in 42 samples, the mean time from the onset to arrival at a local hospital was 3.27$\pm$5.39 hours and for transfer from a local hospital to the medical center was 4.75$\pm$9.87 hours in patients who had arrived at medical center via local hospital. 4. The severity of premonitory signs and symptoms did not differ significantly according to existence of premonitory signs and symptoms. 5. There was no significant relationship between treatment-seeking time and age, gender, marital status, economic status, occupation, or residence. But education had significant relationship(r＝－0.51, p＝0.01). Analysis of difference of the time interval according to the premonitory signs and symptoms showed that the time was shorter in patients who experienced nausea or dyspnea(U＝115.50, p＝0.01, U＝132.00, p＝0.04), however the severity of premonitory signs and symptoms did not have statistical significance.