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황경성(Hwang, Gyeong-Seong),최재성,김상엽(Kim, Sang-Yeop),장영수(Jang, Yeong-Su) 대한교통학회 2008 대한교통학회 학술대회지 Vol.59 No.-
우리나라는 현재 수도권 및 지방도시를 중심으로 택지개발사업이 활발히 이루어지고 있다. 이러한 택지개발사업은 수천억 원 상당의 비용이 투입되며, 이에 따라 사업 투자비용 대비 최대 효과 산출 방안을 찾는 것은 매우 중요한 일이다. 특히, 택지개발사업은 사업시행에 따른 파급효과가 크게 발생하는 특징을 갖고 있어 비용-효율간의 관계가 더욱 중요시되고 있다. 따라서 택지개발 분야의 연구 또한 비용-효율간의 최적화방안을 연구하는 것이 중요하다. 한편, 좋은 주거단지가 가져야할 조건으로 과거에는 주택 내부환경에 많은 비중을 두었지만, 최근 환경 친화적 도시개발을 위해 주택 외부환경도 매우 중요하다는 것을 인식하게 되었다. 이러한 외부환경을 대표하는 것으로 교통부문에서 볼 때 보도시설을 들 수 있다. 이에 따라 택지공급 주체인 공공기관과 민간회사들은 보도시설 공급을 급속히 늘여왔으나, 보행자도로에 대한 합리적 계획기준이 미흡하여 과다 또는 과소 공급으로 인해 주민의 불편을 초래하고 보행안전 문제까지 야기하고 있다.
황경성(Kyung Sung Hwang) 관광경영학회 2001 관광경영연구 Vol.11 No.-
In tourism, according to development of information and communication technology and the increasing use of the Internet, the interest in the search for tourism information is increasing. In this study, I examined the previous research about tourism information and search for the information. I operated and analyzed the survey of actual condition about search for the tourism information on the Internet to university students. Lately, university students are the important consumers on the tourist products market. The exact market analysis for the students might show the important curt events about information service related with corporations which are supported nowadays with the Internet and PC communication. I also researched and investigated the information and the sites which university students use frequently and the problems about tourist information. In addition, I examined the interrelation in these three elements; frequency in the use of int~net information about tourism, accuracy of information, utility of information. I also ted the result of different examination among the frequency in use, gender, and the residential area.
최재성,김상엽,이점호,황경성,Choi, Jai-Sung,Kim, Sang-Youp,Lee, Jeom-Ho,Hwang, Kyung-Sung 한국도로학회 2008 한국도로학회논문집 Vol.10 No.2
At present engineers use the highway design speed concept to develop the horizontal alignment. This concept has a strength of attaining consistent horizontal alignments because of its use of a single speed value. Yet it shows a critical weakness that when opened the operating speed for the vehicles on the road can be a lot different than the design speed. To resolve this, many countries already develop the horizontal alignment by adopting procedures that weigh vehicle operating speeds, and this research joins them by developing an operating speed based horizontal alignment design. We have collected vehicle speed samples over the nation, selected some speed influential design elements by doing a statistical analysis, provided a set of models for two-lane roads and four lane roads, and showed a stepwise feedback procedure by doing a case study. It is underscored that in the case study the proposed procedure has scaled down the speed inconsistency problem, and we are of opinion that our procedure would coin both investment efficiency and speed consistency in future highway projects. 현재 우리나라에서 도로 평면선형 설계를 위해 도로설계속도 개념을 사용하고 있다. 도로설계속도 개념은 단 한 개 도로 설계속도를 사용하기 때문에 도로 기하구조 수준이 일정해진다는 강점을 갖고 있으나, 도로 건설 후 그 도로를 주행하는 실제 차량 속도가 설계속도와 달리 나타날 수 있다는 약점을 갖고 있기도 하다. 본 연구에서는 이 약점을 보완하기 위해, 이미 여러 나라에서 사용 중인 주행속도 예측모형에 근거한 평면 선형설계기법을 제안한다. 본 연구에서는 이를 위해 우리나라 전역에서 표본을 선택하여 차량 속도조사를 수행했고, 속도에 영향을 미치는 도로설계요소를 통계분석을 통해 선정하여 양방향 2차로와 4차로 일반국도에 대한 차량 주행속도 모형을 제시했으며, 그 모형을 도로 평면선형설계에 적용하는 과정을 제시했다. 한편 새로운 기법에 대한 유효성을 밝히기 위한 실제 사례분석에서 새로운 기법은 기존 기법이 갖고 있는 약점을 해소하는 것으로 밝혀졌다. 향후 우리나라 도로 건설 사업에서 본 연구에서 제안한 평면선형 설계기법을 적용하면 도로 투자 효율성이 높아지고, 더 높은 설계일관성을 확보할 수 있을 것으로 판단한다.
심재석(Jae-Suk Shim),천경성(Kyeong-Seong Cheon),오주열(Ju-Youl Oh),황해준(Hae-Jun Hwang),윤혜숙(Hye-Suk Yoon),손길만(Gil-Man Shon),김주현(Zhoo-Hyeon Kim) 한국원예학회 2007 원예과학기술지 Vol.25 No.4
Forty one germplasm accessions were tested for their soluble solid contents (SSC). Of them, eight accessions which are the leading cultivars, showing significant difference among them, were selected and crossed each other for making 8-parents half-diallel set. The expression of SSC of the F1s varied depending upon the parents. Average SSC of all F₁ seedlings was lower than the mean of all parents, but similar to or a little higher than the mean of all S₁ seedlings obtained from selfed parents. The mean of all S₁ seedlings were lower than those of all parents. The mean of superior 10% of F₁ seedlings of each cross was almost higher than superior parents and the mean of superior 10% S₁ seedlings. Also, almost superior 10% S₁ exceeded over their parents. In (Vr, Wr) regression analysis, when using parents and means of all F₁ seedlings of each cross, the direction of dominance was toward to lower SSC, but when using parents and means of superior 10% F₁ seedlings of each cross, higher SSC was expressed in over-dominance mode, which could expect much more superior F₁ seedlings in the combinations with higher SSC parents. The results in analysis of combining ability, which both GCA and SCA were highly significant, were similar with those in regression analysis, and variance of GCA was larger than that of SCA. The higher in the mean SSC of all F₁ seedlings did not always guarantee the higher mean SSC of superior 10% F₁ seedlings. While the higher mean SSC of superior 10% F₁ seedlings was, the larger SCA of superior 10% F₁ seedlings was observed. The better parents, expected for producing more superior F₁ seedlings, were ‘Maehyang’, ‘Tochiotome’, ‘Akihime’, and ‘Yeobong’. Of them, ‘Maehyang’ and ‘Tochiodome’ were the best parents in the respect on improving SSC. The best combinations for increasing SSC were ‘Maehyang’ x ‘Johong’, ‘Maehyang’ x ‘Tochiotome’, ‘Maehyang’ x ‘Toyonoka’, followed by ‘Maehyang’ x ‘Yeobong’, ‘Maehyang’ x ‘Akihime’, ‘Johong’ x ‘Tochiotome’, ‘Tochiotome’ x ‘Yeobong’, and ‘Tochiotome’ x ‘Red pearl’, in order.