• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2017년도 추계학술대회
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• pp.138-139
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• 2017

In the 21st century, maritime industry is the field, which play an important role in the improvement of human. Due to geographical conditions and the development of technology, the demanding of human can be solved easier by shipping. With the advantage of the location and the help of modern technology, maritime in dustry bring various advantage for HaiPhong. In this field in general or the job such as assistant, marketing and the contribution of women is undeniable. Meanwhile, with the field of shipping, there are some problems, which are preventing women from the work of seafaring. However, in the current, female employees are necessary in all the work, the thinking of the job for only male still exit in the brain of citizen. Therefore, the solutions for this problem need to set not only in maritime industry but also for the others heavy industry.

• 수산해양교육연구
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• 제17권3호
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• pp.404-412
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• 2005

The surface energy budget depends on many factors, such as the type of surface, the soil moisture and the vegetation canopy, the geographical location, daily, monthly and seasonal variations, and weather conditions. In the coastal region, the surface is not homogeneous at various scales for instance water, sand, mud, tall grass, and crops. The energy balance over the vegetation canopy was analyzed with the optical energy balance measuring system. The latent heat flux was more intensive than the sensible heat flux. The sensible heat flux was very small in summer due to the canopy effect and higher in spring and autumn. In summer the development of the atmospheric boundary depended on rather the vertical shear of wind than the sensible heat flux.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.671-672
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• 2015

Due to harsh conditions of disaster areas, understanding of current feature of collapsed buildings, terrain, and other infrastructures is critical issue for disaster managers. However, because of difficulties in acquiring the geographical information of the disaster site such as large disaster site and limited capability of rescue workers, comprehensive site investigation of current location of survivors buried under the remains of the building is not an easy task for disaster managers. To overcome these circumstances of disaster site, this study makes use of an unmanned aerial vehicle, commonly known as a drone to effectively acquire current image data from the large disaster areas. The framework of 3D model reconstruction of disaster site using aerial imagery acquired by drones was also presented. The proposed methodology is expected to assist rescue workers and disaster managers in achieving a rapid and accurate identification of survivors under the collapsed building.

• 대한지리학회지
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• 제37권4호
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• pp.317-336
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• 2002

본 연구는 동래 읍성의 입지, 성곽 형태 및 도로망. 관아 및 가옥분포 토지이용 등을 중심으로 조선시대의 경관 복원을 시도한 후. 일제강점기에 나타난 변화를 파악하여 이를 사회ㆍ문화적인 측면에서 설명하고자 하였다. 가야시대부터 취락이 형성되었던 현재의 장소에 고려말 읍성이 이전 입지한 것은 해안방어 요충지와의 접근성을 최대로 하기 위하였던 것으로 추정된다. 이후 읍성이 위치한 장소는 동래부의 중심 공간으로 등장하였다. 이와 같은 입지 특성은 4대문 위치 및 성안의 도로망 분포 등에 영향을 주었다. 관아시설의 배치는 중앙 권력의 상징. 읍성 군사 방어 기능과 관련되어 배치되었다. 객사 입지는 중심공간에 지형을 이용하여 권력 질서의 위계를 반영하였으며. 좌측에 동헌. 우측에 향청 및 군사 기능이 배치되었다. 읍성내 취락은 남문을 중심으로 분포하였고. 산록부는 농경지로 이용되었다. 일제 강점기 중 1920년대 시행된 시구개정사업으로 성벽이 철거되었고, 성안에 격자상의 도로망이 신설되었다. 평지에 있던 성벽 자리는 도로용지나 주택지로 이용되었다. 객사와 동헌을 중심으로 형성되었던 성안의 공간구조가 변화되었고. 관아건물은 공공기관으로 사용되거나, 민간인에게 불하되어 다른 용도로 이용되었다. 이 과정을 통하여 읍성이 위치하였던 장소의 상징적 의미는 쇠퇴되었다. 그러나 현대사회에서 읍성은 부산시민에게 역사적인 중심공간으로 자리잡고 있으며. 현재 남아 있는 일부 경관을 중심으로 복원작업이 시도되고 있다. 연구 결과는 읍성이 단순히 건축물이 아닌 당시대의 사회문화가 투영된 경관이며, 각지방에 소재한 읍성은 새로운 시각으로서 재조명되어야 할 것임을 보여준다.

• 전기학회논문지
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• 제67권4호
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• pp.498-504
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• 2018

The conventional photovoltaic(PV) systems are designed the installation angle for maximizing power output by considering a geographical characteristics, weather and climate conditions such as the solar radiation and atmosphere temperature. However, the PV generators must be designed to deal with the extreme situations like typhoons, earthquakes because PV systems are exposed to the ambient conditions and external shock due to condition of PV location. Especially, the wind has relatively higher influence on the design of PV systems, in this paper we proposed the method of determining the optimal nominal dimension of the facilities, which can withstand the maximum wind pressure. By using the proposed method, we determined the optimal installation angle for the aspect stability of PV facilities and amount of power output. Moreover, we analyzed the monthly amount of power for each installation angle of PV systems, and proposed the changing strategy of installation angle by determining the optimal angle to produce maximum power for each period.

• Architectural research
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• 제17권2호
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• pp.65-74
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• 2015

The habitual rooms and other structures related to everyday life are almost always grouped around the courtyard and together make up a house. There are many kinds of variety in types of courtyard houses depending on location, composition, allocation and relationship with inner space of the house. Every type of courtyard house accumulates many factors, which are social and economic circumstances, weather and geographical conditions. They are still well harmonized with life style and weather conditions in each area and basic unit of city organization. A courtyard can be shown as a place for everyday conversation like a community. Everyday space is the connective tissue that binds daily lives together, amorphous and so persuasive that it is difficult even to perceive. In spite of its ubiquity, everyday space is nearly invisible in the professional discourses of the city, like everyday life. Therefore Courtyards are special places that are outside yet almost inside, open to the sky, - a microcosm which gives relief to the inner rooms, gives the inhabitants a sense of ease and calm, and the feeling that they have their own piece of sky to use and protect them. This research will explore a variety of space use and dwelling types through courtyards based on field research and design projects.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.616-623
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• 2022

Some regions and states, such as Wyoming, have harsh weather conditions, forcing most transportation projects to be completed under tight schedules. However, construction projects are not only delayed by weather conditions, but also delayed by other factors such as contractor's competency, resource availability, coordination issues, and safety. Also, the construction method, geographical location of the projects, and inability to follow baseline schedules accurately due to the contractor's resource allocation are also reasons for the delay. This paper discusses the main reasons for the delay in the public transportation projects based on Daily Work Reports (DWRs) from five different transportation projects of the last three years in Wyoming. This paper focuses on the inconsistencies of the contractor's schedules to complete the project according to the baseline schedule. First, the authors collected DWRs and baseline schedules from the Wyoming Department of Transportation (WYDOT). Second, the DWR data are compared against the baseline schedules to determine the reasons for delaying their significance. Finally, the paper presents the recommendations to mitigate the effects of delays on public transportation projects as well as to improve the documentation process of DWR data.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.869-875
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• 2009

Safety is a big issue in the construction sites. For safe and secure management, tracking locations of construction resources such as labors, materials, machineries, vehicles and so on is important. The materials, machineries and vehicles could be controlled by computer, whereas the movement of labors does not have fixed pattern. So, the location and movement of labors need to be monitored continuously for safety. In general, Global Positioning System(GPS) is an opt solution to obtain the location information in outside environments. But it cannot be used for indoor locations as it requires a clear Line-Of-Sight(LOS) to satellites Therefore, indoor location monitoring system could be a convenient alternative for environments such as tunnel and indoor building construction sites. This paper presents a case study to investigate feasibility of Wi-Fi based indoor location monitoring system in construction site. The system is developed by using fingerprint map of gathering Received Signal Strength Indication(RSSI) from each Access Point(AP). The signal information is gathered by Radio Frequency Identification (RFID) tags, which are attached on a helmet of labors to track their locations, and is sent to server computer. Experiments were conducted in a shield tunnel construction site at Guangzhou, China. This study consists of three phases as follows: First, we have a tracking test in entrance area of tunnel construction site. This experiment was performed to find the effective geometry of APs installation. The geometry of APs installation was changed for finding effective locations, and the experiment was performed using one and more tags. Second, APs were separated into two groups, and they were connected with LAN cable in tunnel construction site. The purpose of this experiment was to check the validity of group separating strategy. One group was installed around the entrance and the other one was installed inside the tunnel. Finally, we installed the system inner area of tunnel, boring machine area, and checked the performance with varying conditions (the presence of obstacles such as train, worker, and so on). Accuracy of this study was calculated from the data, which was collected at some known points. Experimental results showed that WiFi-based indoor location system has a level of accuracy of a few meters in tunnel construction site. From the results, it is inferred that the location tracking system can track the approximate location of labors in the construction site. It is able to alert the labors when they are closer to dangerous zones like poisonous region or cave-in..

• 한국산업정보학회논문지
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• 제28권6호
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• pp.91-98
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• 2023

태양광 발전소의 발전량은 기상 조건, 지리적 조건, 태양광 패널 설치 조건과 높은 상관관계를 갖는다. 과거 연구들에서는 발전량에 영향을 미치는 요소를 찾아내었고, 그 중 일부는 태양광 패널이 최대 전력량을 생산할 수 있는 최적의 조건을 찾았었다. 하지만, 태양광발전소 설치 시 현실적 제약을 고려하면 최대 발전량 조건을 만족시키기는 매우 어렵다. 발전소 소유자가 태양광발전소 설치를 검토할 때 태양광 발전량을 예측하기 위해서는 발전량에 영향을 미치는 요인들의 민감도를 알아야 한다. 본 논문에서는 태양광발전소의 발전량과 날씨, 위치, 설치 조건 등 관련 요인들과의 관계를 분석하기 위한 다항회귀분석 방법을 제안한다. 분석자료는 대구, 경북에 설치·운영되는 태양광발전소 11개소로부터 수집하였다. 분석 결과 발전량은 패널 종류, 일사량, 음영 유무에 영향을 받으며 패널 설치 각도와 방향이 복합적인 영향을 주는 것으로 나타났다.

• 한국경제지리학회지
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• 제23권3호
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• pp.334-348
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• 2020

최근 도시내 기업입지수요가 증가하나 도시에서 넓은 부지확보는 어려우므로 소규모 '미니산업단지' 형태가 미래형 산단 유형으로 적절할 것이다. 수도권지역을 대상으로 저활용되는 부지를 잠재적 개발후보지로 가정하고 입지적합성 평가지표를 적용하여 시범 평가해 보았다. 전문가와 기업체설문을 통해 지표간 중요도를 분석한 후 이를 가중치로 하여 1~4등급 후보지를 구분하였다. 1등급 후보지에 영향을 미친 지표로는 기업체 가중치를 적용한 경우 교통접근성과 도시서비스 여건인 반면 전문가 가중치 적용경우 첨단·지식산업 및 대학·연구소로 나타났다. GIS 분석 결과 서울-경기남부축과 서울-경기남서부축이 가장 우수한 미니산단 입지지역으로 도출되어 기형성된 지식산업집적지가 향후에도 경쟁력있는 산업지역으로 인식되는 것으로 조사된다.