• 토지주택연구
• /
• 제5권4호
• /
• pp.247-257
• /
• 2014

본 연구는 최근 임대 및 소규모 위주의 공공주택정책과 개발 패러다임의 변화를 반영하여 소규모 주택사업지구와 행복주택사업지구를 중심으로 하는 새로운 주택수요평가모델을 제시하였다. 공공주택 사업지구의 수요평가모델은 정량적 평가요소인 잠재소요지표, 수요압력지표와 정성적 평가요소인 지역여건지표로 구성된다. 소규모 주택사업지구의 잠재소요지표는 읍 면 동 단위의 해당 지역에서 도출된 잠재소요량에서 기 공급된 건설임대와 매입 임대 재고물량을 차감하여 산출하였다. 이렇게 산출된 실제소요물량과 신규공급계획물량을 비교하여 공급의 미달, 적정, 초과를 판단하였다. 도심 내 젊은 층을 위한 행복주택사업지구의 경우 잠재소요지표는 시 군 구 단위의 해당 지역에서 행복주택공급대상계층인 대학생, 사회초년생, 신혼부부를 대상으로 임차여부, 소득요건 등을 바탕으로 추정하였다. 중소도시 및 농어촌지역 소규모 주택사업지구의 경우 수요압력지표는 해당 지역의 청약저축가입자수, 기초생활보장수급자수, 국가보훈대상자수와 각각의 무주택가구수 대비 비중으로 산출하였다. 다만 지역여건지표와 산업단지 개발 등 향후 인구유발요인 등을 감안하여 후보지 선정여부를 종합적으로 판단하도록 하였다. 행복주택사업지구의 수요압력지표는 해당지역의 소형주택재고비율, 전세가격상승률, 전세가격수준, 월세거주가구비율로 하였고 이를 전국 및 해당 시 도 평균과 비교하여 수요압력 정도를 판단하였다. 또한 행복주택의 사업여건이나 입지경쟁력과 관련된 대중교통이용여건, 주변시설현황, 중심지와의 거리, 지역개발현황 등의 지역여건지표를 바탕으로 최종적인 평가가 이루어지도록 하였다.

• 근관절건강학회지
• /
• 제30권3호
• /
• pp.197-207
• /
• 2023

Purpose: This study attempted to discern the factors that influence nursing professionalism, learning agility, and the nursing practice environment on the performance of nurses. Methods: Data were collected from 202 clinical nurses who both consented to participate and who have worked for more than one year in one of five small- and medium-sized hospitals located in three regions of Korea. The data were analyzed using the SPSS/WIN 26.0 statistical programs. Results: The nurses' performance showed a statistically significant correlation with nursing professionalism (r=.50, p<.001), learning agility (r=.54, p<.001), and nursing practice environment (r=.37, p<.001). Factors affecting the results of nurses' performance in relation to the subjects are those of learning agility (β=.33, p<.001), nursing professionalism (β=.25, p<.001), clinical career (β=.24, p=.001), education level (β=.16, p=.011), and nursing practice environment (β=.15, p=.016). Conclusion: To improve the performance of nurses in medium-sized hospitals, it is necessary to develop a nursing practice environment, programs, and strategies for enhancing nursing professionalism and learning agility.

• International Journal of Fluid Machinery and Systems
• /
• 제6권1호
• /
• pp.11-17
• /
• 2013

Mini centrifugal pumps having a diameter smaller than 100mm are employed in many fields. But the design method for the mini centrifugal pump is not established because the internal flow condition for these small-sized fluid machines is not clarified and conventional theory is not suitable for small-sized pumps. Therefore, mini centrifugal pumps with simple structure were investigated by this research. Splitter blades were adopted in this research to improve the performance and the internal flow condition of mini centrifugal pump which had large blade outlet angle. The original impeller without the splitter blades and the impeller with the splitter blades were prepared for an experiment. The performance tests are conducted with these rotors in order to investigate the effect of the splitter blades on performance and internal flow condition of mini centrifugal pump. On the other hand, a three dimensional steady numerical flow analysis is conducted with the commercial code (ANSYS-CFX) to investigate the internal flow condition in detail. It is clarified from experimental results that the performance of the mini centrifugal pump is improved by the effect of the splitter blades. Blade-to-blade low velocity regions are suppressed in the case with the splitter blades and total pressure loss regions are decreased. The effects of the splitter blades on the performance and the internal flow condition are discussed in this paper.

• 한국주거학회논문집
• /
• 제25권3호
• /
• pp.155-164
• /
• 2014

The purpose of the study was to explore expectations of workforce entry preparers from non-capital regions on post-college housing and financial support from their parents. From July 26 to August 8, 2013, an on-line questionnaire survey was conducted to juniors and seniors in colleges nationwide and 692 useable responses were collected from college students who were from non-capital regions. Findings from this study are summarized as follows: (1) About 44% of the respondents expected to live apart from their parents and other relatives within two years from their college graduation and 48% of them expected to live in Seoul Metropolitan Area; (2) among those who expected to live apart from their parents and other relatives, 61% expected to be monthly renters; 75% expected to live in small-sized units such as studios; 85% expected parental support to afford post-college housing costs; (3) female respondents, younger respondents and/or respondents with a greater parent income showed more stronger expectation on parental support to afford housing costs; and (4) most respondents perceived influence of housing cost burden strong enough to affect their job choices.

• 농촌계획
• /
• 제26권4호
• /
• pp.107-116
• /
• 2020

The purpose of this study is to analyze the characteristics of the 11 southeastern states in the United States by using regional characteristics variables and to classify the regions. First, 19 variables from four categories of population, society, industry-economy and urban service were selected and factor analysis were conducted, and the result showed five major factors of population, economic condition, job and commuting. Based on the following factor scores, a cluster analysis was conducted, and eight types of big city, medium-sized city, bed town, small town, urban hinterland, retirement town, and rural village were derived. These types of spatial distribution characteristics showed big cities were by different types of regions and they formed metropolitan areas. Each types of classified regions were located along the road network with hierarchy. The study focused on cases in the southeastern regions of the United States and can be used as a comparison with Korean cases. If the same research method is applied to Korea in the future, or if the time series of changes is tracked by analyzing different time points, it will greatly help identify the characteristics of urban and rural mixed areas.

• 경영과정보연구
• /
• 제29권1호
• /
• pp.25-47
• /
• 2010

본 연구의 주된 목적은 우리나라 중소기업의 지역별, 업종별 특성을 분석하고, 특성화된 중소기업 발전 방향을 제시하는 데 있다. 구체적으로 본 연구에서는 최근의 중소기업 실태, 산업별 중소기업 실태 자료 등을 기초로 업종, 규모 등 다양하게 분포된 중소기업을 업종, 규모, 지역 등을 감안하여 기업특성을 분석하고, 중소기업 존립기반을 제시하는데 그 목적이 있다. 규모별 분석 결과에 따르면, 우리나라 중소기업과 대기업 사이의 경쟁력 격차가 점점 커질 수밖에 없는 상황이 지속되고 있다. 음식숙박업에 종사하는 중소기업의 고용창출 효과가 가장 높게 나타나고 있다. 이에 비해, 대기업의 경우에는 제조업과 기타서비스업, 광업 및 숙박음식업 등에서 고용창출 효과가 높게 나타나고 있다. 지역별로 살펴본 분석 결과에 따르면, 서울지역에는 다른 지역에 비해 상대적으로 많은 대기업체가 존재하기 때문에 서울지역에의 노동력 편중현상을 시사하는 부분이다. 서울 지역 이외의 다른 지역에서는 대기업 종사자보다는 중소기업 종사자들이 많은 비중을 차지하는 것으로 조사되고 있다. 중소기업 내에서 지역별 종사자 구성을 살펴보면, 전국 중소기업 종사자의 50% 이상이 서울 경기지역에서 근무하고 있는 것으로 제시되고 있다. 이와 같은 집중 현상은 지방경제발전을 통한 우리나라 전국균형발전을 도모하기 위해서는 서울 경기지역에 집중되어 있는 기업체의 지방 분산이 가능할 수 있는 실천적인 활동 수행이 지속적으로 요구된다.

• 천문학회보
• /
• 제45권1호
• /
• pp.59.2-59.2
• /
• 2020

Disks around protostars are the birthplace of planets. The first step toward planet formation is grain growth from ㎛-sized grains to mm/cm-sized grains in a disk, particularly in dense regions. In order to study whether grains grow and segregate at the protostellar stage, we investigate the ALMA Band 3 (3.1 mm) and 7 (0.87 mm) dust continuum observations of the protostellar disk WL 17 in ρ Ophiuchus L1688 cloud. As reported in a previous study, the Band 3 image shows substructures: a narrow ring and a large central hole. On the other hand, the Band 7 image shows different substructures: a non-axisymmetric ring and an off-center hole. The two-band observations provide a mean spectral index of 2.3, which suggests the presence of mm/cm-sized large grains. Its non-axisymmetric distribution may imply dust segregation between small and large grains. We perform radiative transfer modeling to examine the size and spatial distributions of dust grains in the WL 17 disk. The best-fit model suggests that large grains (>1 cm) exist in the disk, settling down toward the midplane, whereas small grains (~10 ㎛) well mixed with gas are distributed off-center and non-axisymmetrically in a thick layer. The low spectral index and the modeling results suggest that grains rapidly grow at the protostellar stage and that grains differently distribute depending on sizes, resulting in substructures varying with observed wavelengths. To understand the differential grain distributions and substructures, we discuss the effects of the protoplanet(s) expected inside the large hole and the possibility of gravitational instability.

• 조명전기설비학회논문지
• /
• 제23권6호
• /
• pp.78-84
• /
• 2009

본 논문은 토양의 방전 영역에서 소규모 접지전극의 과도접지임피던스의 측정결과를 제시한다. 접지전극 주변에서 이온화 특성을 사실적으르 분석하기 위해서 세 가지 형상의 접지전극을 실외에 설치하고, 고전압 임펄스 발생기를 사용하여 시험전류를 인가하였다. 정지전극에서 대지로 흐르는 전류와 응답 전압을 분석한 결과, 접지전극 주변의 이온화는 높은 대지저항률률의 토양에서 접지임피던스 감소에 기여하며 대지전위상승을 효과적으로 제한하는 것이 확인된다. 하지만 낮은 대지저항률의 토양에서는 이온화 임계전계강도가 작아서 전극 형상이 과도접지임피던스에 거의 영향을 주지 못한다. 그리고 전극형상에 따른 실험결과, 판전극보다 침부봉전극이 이온화 영역 전압범위 내에서 과도접지임피던스 저감에 보다 효과적이다.

• Toxicological Research
• /
• 제21권2호
• /
• pp.87-98
• /
• 2005

Human exposure to nano-sized particles (NSP) has increased over the last century with anthropogenic sources, and the rapid development of nanotechnology becomes an another source of such exposure. Information regarding the safety of nanotechnology and its product, nanoparticles, is urgently needed when assuming exposure through inhalation, oral intake, and penetration across skin is ever increasing as growing nanotechnology rapidly. The recent advancement of biokinetic studies with NSP and newer epidemiologic and toxicologic studies with ultrafine particles can be the basis for the nanotoxicology. Some concepts of nanotoxicology can be known from the results of these results. Specific small size of NSP, when inhaled, facilitates deposition by difusional mechanism in all regions of the respiratory tract and uptake into cells, ranscytosis across epithelial and endothelial cells into the blood and lymph circulation to reach target sites. Translocation along axons and dendrites of neuron makes an access to CNS and ganglia. These biokinetics are dependent on NSP surface chemistry. Risk assessments of NSP include appropriate and relevant doses/concentration selections, the increase effects in the organism and the benefits of possible desirable effects. An interdisciplinary team approach is desirable for nanotoxicology research and an appropriate risk assessment.

• 한국지반공학회:학술대회논문집
• /
• 한국지반공학회 2010년도 춘계 학술발표회
• /
• pp.891-894
• /
• 2010

Steep slope disasters accompany economic loss along with casualties, so the evaluation and the systematic management on the regions with slope collapse danger are required. A lot of manpower, time, and economic cost are needed to accumulate disaster history of steep slope areas by the national and small-sized region. As the method for this, it construed location data about each area with disaster occurrence by maknd elocation data of collapsed steep areas through high-resolution satellite image and collectnd edata on the regions with disasters through media and literature data such as a disaster annual report and a disaster comprehensive report. The study selected three shortest routes includnd ethe area with disaster in Jeolla province on literature and the collapsed area found by the image data, and constructed the results of the field survey as database.