공동주택의 범죄발생 실태 및 범죄불안감에 관한 연구 : 부산진구 사례 중심으로 The Case Studies of Busan Jin-Gu

최열,김효숙,임하경 釜山大學校 都市問題硏究所 2003 都市硏究報 Vol.15 No.-

Security of residential environment is a basic desire as well as a necessary condition to make happy home. Specially a security from the crime is an important matter at the large scale and high density dwelling complex in the industrialized city. The concept of defensible space is the living environment for crime prevention and reduction in fear of crime, based on recognition that crime occurrences have influenced on the quality of residential environment. Recently Crime Prevention Through Environment Design (CPTED) is used a variety fields including housing, commerce, education and recreation facilities. So it became important factors to construct a good city. It means that possibility of a CPTED's application is very diverse. This study intended to understand the place where produces crime and affects the uneasiness and to propose the design's guideline of defensible space to residential site. Therefore this paper analyzed the differences of the case among the apartments, the mixed-use residential buildings, the multiplex houses.

雨水管路 滿水時 水理學的擧動에 대한 XP-SWMM와 水理模型實驗의 比較 硏究

최한규,백효선,백두열 강원대학교 산업기술연구소 2005 産業技術硏究 Vol.25 No.B

To use land more efficiently under urbanization trend, Kangwon Province often covers open channels of creeks and uses them as parking lots or roads. A covered open channel section tends to form a rectangular culvert. Therefore, a creek with covered open channels can function as a storm drain. At the time of light rainfall, there are no significant differences except water flowing pattern between a creek with a covered open channel and a creek without it. Recently, however, the frequent occurrence of heavy rainfalls limited at a small, definite area has become problematic. When the heavy rainfall causes the carrying capacity of a creek to be exceeded, the creek with covered open channel has a more serious problem than the creek without it has. Therefore, we made an interpretation of data and conducted hydraulic model experiment to come up with economical solution to this problem.

A Study on Loading Arm Envelope and Alarm Setting according to Ship Movement

Choi, Byoung-Yeol,Jo, Hyo-Jae,Choi, Han-Sik,Choi, Dong-Eon Korean Society of Ocean Engineers 2018 Journal of advanced research in ocean engineering Vol.4 No.3

This study was carried using the new approach method to design appropriately the Loading Arm length and the alarm setting according to ship movements on Loading and Unloading marine Berth. The quasi-static mooring analysis was performed to estimate 110,000DWT ship's movements based on environmental conditions such as wind, current and wave. The mooring motion of the ship is very important to determine the loading arm scope, and in this case, the operation condition is performed on the ship without considering the damaged condition of the mooring line because the ship movement in case of damage is larger than intact, and all operations are stopped, the loading arm being released due to control system. From the result of mooring analysis, motion displacements, velocities and accelerations were simulated. They were used to simulate the maximum drifting speeds and distances. The maximum drifting speeds were checked to be satisfied within drifting speed limits. The total maximum drifting distances were simulated with alarm steps of the new approach method. Finally, the loading arm envelopes using the total maximum drifting distances were completed. Therefore, it was confirmed that the new approach method for loading arm envelopes and alarm settings was appropriate from the above results. In the future, it will be necessary to perform the further advanced dynamic mooring analysis instead of the quasi-static mooring analysis and to use the precise computer program analysis for various environments and ship movement conditions.

은퇴계층의 부동산자산 운용에 관한 결정요인 분석

최효비(Choi, Hyo Bi),이재송(Lee, Jae Song),최열(Choi, Yeol) 한국부동산학회 2016 不動産學報 Vol.65 No.-

많은 은퇴계층들은 자산 축적 방법으로 부동산 투자를 선호하여 자산포트폴리오 중 부동산자산이 차지하는 비중이 상당히 높은 편이다. 이러한 점에서 착안하여 본 연구는 가계금융·복지조사를 이용하여 은퇴계층의 부동산자산 형성에 영향을 미치는 요인을 분석하고자 하였다. 은퇴계층이 보유한 부동산자산을 보다 심층적으로 분석하기 위하여 이항로짓모형을 활용하여 2단계에 걸친 실증분석을 실시하였다. 첫 번째 분석에서는 은퇴계층이 자가 소유에 영향을 미치는 요인을 분석하였고, 두 번째 분석에서는 자가를 이미 보유하고 있는 은퇴계층이 자가 이외의 부동산자산 소유에 영향을 미치는 요인을 분석하였다. 분석 결과, 첫 번째 분석에서는 가구주 은퇴 연령이 낮을수록, 혼인을 유지하고 있지 않을수록, 가구원 수가 많을수록, 수도권에 거주할수록, 기타실물자산 보유액 및 연간지출금액이 작을수록 은퇴계층이 자가를 소유할 확률이 높은 것으로 나타났다. 두 번째 분석에서는 은퇴시시가 앞당겨질수록, 낮은 교육수준의 가구주일수록, 부채총액과 경상소득 및 연간지출금액이 작을수록 자가 이외 부동산자산을 소유할 확률이 높은 것으로 나타났다 1. CONTENTS (1) RESEARCH OBJECTIVES In preparing economically for retirement, the real estate assets have charm to satisfy residential stability and wealth effects at the same time. Actually the proportion of real estate assets in property portfolios of many retirement people is quite high. Therefore, the study is to analyze the factors affecting the formation of their real estate assets with the household finance․welfare statistical survey. It is used variables of gender, age, retirement age, education, marital status as householder characteristics, variables of the number of household member, residential areas, housing type, area for exclusive use as household characteristics, and economic variables of financial assets, real estate and other real assets, total debt. (2) RESEARCH METHOD Empirical analysis: Binary logit model (3) RESEARCH FINDINGS Analysis is carried out in two stages using binary logit model with the survey data of households which householders retired. First stage is analyzing factors affecting the home ownership. Second is analyzing factors affecting the ownership of real estate except their own houses. 2. RESULTS In the first analysis, there is a high probability to own their house of retirement people the more they do not maintain the marriage, the greater the number of household members, living in the metropolitan area. In the second analysis, there is a high probability to own other real estate assets, the faster the retirement age, the lower levels of education of householders, and the smaller total debt, ordinary income and annual expenditure.

전문지도 연구회 활동성과의 발전방향

최효율(Hyo Yeol Choi),박경철(Kyung Chul Park) 한국농촌지도학회 2000 농촌지도와 개발 Vol.7 No.2

The purposes of this study were to analyze achievement of the Korea Agricultural Extension Specialist Association and suggest new directions for further development. The Korea Agricultural Extension Specialist Association was organized to develop competencies in specialized field for extension educators in 1996. About 47% of extension educators joined academy during the 5 year period, even though there were many difficulty in organizing extension educators, the Korea Agricultural Extension Specialist Association has achieved to increase independent learning activity, to share new information and improve agent`s competency. New directions for the future development of the Korea Agricultural Extension Specialist Association activities should include the following measures; 1) Academy manages to help member`s competency, 2) Every member of the Association tries to make a concrete goal of activity, 3) The Association members should find ways to enable farmers to remain informed on agricultural extension services to people.

도축 한우의 복강내 지방괴사증 발생과 병리조직학적 연구

최길성 ( Gil Seong Choi ),임채웅 ( Chae Woong Lim ),채효석 ( Hyo Seok Chai ),최인열 ( In Yeol Choi ),이성효 ( Sung Hyo Lee ),김추철 ( Chu Cheul Kim ),서문정 ( Moon Jeong Suh ) 한국가축위생학회 1999 韓國家畜衛生學會誌 Vol.21 No.1

The bovine fat necrosis is often seen as an incidental lesion in the adipose tissues of the abdominal cavity. Most of affected animals, however, have been detected at the slaughter house or routine necropsy. The purpose of this study was to examine the occurrence and distribution of abdominal fat necrosis in Korean native cattle, and its pathologic features. Postmortem inspection at an Chonju abattoir during a three-month period in 1997 detected at necrosis lesions in 67(6.6%) of the 1,012 animals received for slaughter. The occurrence was mainly in alimentary tracts and perirenal. Both sexes were affected, but the lesions were predominantly occurred in female. Gross lesions were white or yellowish in color and formed hard lumps irregular in shape ranging from small nodules to large solid masses. On the cut surface, lesions were occasionally seen chalky calcified granules and some of the lesions contained oil-like fluid. The surface of irregular shaped masses constricted kidneys and intestinal loops. Microscopically, the masses were encapsulated by thickened fibrous tissue, which infiltrated deeply and divided them into many irregular lobules. Initial lesions presented mild inflammatory cell and fibrous proliferation. It became fibroplasia in progressive lesions and resembled chronic lesion, eventhough no grossly apparent inflammatory reaction. The hard consistency of masses, due to fibroplasia, can compress the intestines, urinary organs, and reproductive organs.

Development of Wind Induced Wave Predict Using Revisited Methods

Choi, Byoung-Yeol,Jo, Hyo-Jae,Lee, Kang-Ho,Byoun, Dong-Ha Korean Society of Ocean Engineers 2018 Journal of advanced research in ocean engineering Vol.4 No.3

In this study, when the stability of the structure against the ocean wave is considered for designing the offshore structures in the Pacific, Indian ocean and Atlantic regions where the cyclone is largely generated, the ocean wave caused by the cyclone as well as the storm surge which called wind induced wave shall be predicted accurately for the purpose of judgment. The predicted wind induced wave was evaluated by comparing the outcome results the model test of Nobuhiro Matsunaga (1996) and Conventional Experiment forms such as Jonswap spectral forms(Carter, 1982), Simplified Donelan / Jonswap forms(Wilson 1965), Donelan spectral forms(Donelan 1980), Revised SPM forms(Schafer Lake 2005, 2007, 2008), SPM forms(CERC 1977), the CEM forms(Kazeminezhad et al., 2005), SMB forms(Sverdrup Munk and Bretschneider 1947,1954, 1970), and Revised Wilson forms(Wilson 1965, Goda 2003). Most of these conventional experiment forms confirmed a good match when the fetch length is less than 10 km. However, normal cyclone fetch length is more than 100km, With this fetch length, the comparison result is 10.4% of deviation when used Jonswap spectral forms(Carter, 1982) but the deviation of the other forms is around 74% due to boundary limit of fetch and wind duration. Therefore, in this study, we proposed the revised forms after comparing these results with the model results. We confirmed that the deviation range is around 10% based on revisited experiment forms. Since the model test was carried out in the small water tank, the scale up factor was applied to the mode test results in order to obtain similar results to the actual environment from revisited forms.

New Design for Jacket-type Offshore Wind Turbine Support Structure for Southwest Coast of South Korea

Choi, Byeong-Ryoel,Jo, Hyo-Jae,Choi, Han-Sik,Ha, Sung-Yeol,Park, Young-Ho Korean Society of Ocean Engineers 2017 Journal of advanced research in ocean engineering Vol.3 No.4

The Korea Offshore Wind Power (KWOP) cooperation is planning to construct offshore wind energy farms with an overall rated power of 2.5 GW along the southwestern coast by 2019. Hitherto, various structural types of support structures for offshore wind turbines have been being proposed, but these structures have lacked economic analysis studies. Therefore, their economical superiority to existing types has been difficult to guarantee. An offshore structure with economic efficiency will have a minimum amount of mobilizing equipment and short offshore construction period because of the application of rapid installation methods. Thus, the development of a new support structure with economic efficiency is generally considered to be necessary. Accordingly, this paper proposes a newly developed and more economical jacket type for the offshore support structure. This study confirmed its structural safety and performance by conducting a structural analysis and eigenvalue analysis. The manufacturing and installation costs were then estimated. As a result, the new jacket type of offshore support structure proposed in this study significantly reduced the manufacturing and installation costs. Therefore, it is expected that the proposed jacket will contribute to reducing construction expenses for new wind power farms and invigorating wind power farm businesses.

Intraoperative blood loss and surgical time according to the direction of maxillary movement

Hyo Seong Kim,Ji Hwan Son,Jee Hyeok Chung,Kyung Sik Kim,Joon Choi,Jeong Yeol Yang 대한성형외과학회 2020 Archives of Plastic Surgery Vol.47 No.5

Background Excessive bleeding is one of the most severe complications of orthognathic surgery (OGS). This study investigated the associations of intraoperative blood loss and surgical time with the direction of maxillary movement. Methods This retrospective study involved patients who underwent OGS from October 2017 to February 2020. They were classified based on whether maxillary setback was performed into groups A1 and B1, respectively. Relative blood loss (RBL, %) was used as an indicator to compare intraoperative blood loss between the two groups. The surgical time of the two groups was also measured. Subsequently, the patients were reclassified based on whether posterior impaction of the maxilla was performed into groups A2 and B2, respectively. RBL and surgical time were measured in the two groups. Simple linear and multiple regression analyses were performed. P-values <0.05 were considered to indicate statistical significance. Results Eighteen patients were included. The RBL and surgical time for the groups were: A1, 13.15%±5.99% and 194.37±42.04 minutes; B1, 12.41%±1.89% and 196.50±46.07 minutes; A2, 13.94%±3.82% and 201.00±39.70 minutes; and B2, 9.61%±3.27% and 188.84± 38.63 minutes, respectively. Only RBL showed a statistically significant difference between the two groups (A2 and B2, P=0.04). Conclusions Unlike maxillary setback, posterior impaction of the maxilla showed a significant association with RBL during surgery. When performing posterior impaction of the maxilla, clinicians need to pay particular attention to surgery and postoperative care.

Lithium 치료도중에 발생한 갑상선 중동증 1예

최영식,김현주,이철희,박요한,편준철,박달수,정효균,안수열,전진숙,오용창,김형주 대한내분비학회 1998 Endocrinology and metabolism Vol.13 No.4

Lithium has been established as a drug useful for the treatment of manic depressive disorder. It is now well recognized that long-term administration of this drug is associated with various antithyroid effects such as goiter, and subclinical and overt hypothyroidism. However, it has been associated less commonly with thyrotoxicosis. Recently we experienced a case of thyroitoxicosis during lithium therapy. A 24-year-old man treated with lithium carbonate 900 mg-1,200 mg/day for manic-depressive illness for four weeks. He then complained of nervousness, palpitation, tremor, heat intolerance, and sweating. Neck pain was not noted. At that time the results of thyroid function test were consistent with hyperthyroidism: T3 568.8 ng/dL, TSH 0.01 mU/mL, FT4 6.0 ng/dL, but 24 hr radioiodine uptake was 0.3%. We suspected this case as lithium induced thyrotoxicosis and discontinued lithium administration. After discontinuation of lithium thyrotoxic symptoms were subsided. One month later, thyroid hormon levels became normalized: T 100.2 ng/dL, TSH 0.06 mU/mL, FT4 0.97 ng/dL and 24hr radioiodine uptake was 16%. We report this case with review of literatures (J Kor Soc Endocrinol 13:629-633, 1998).