• Title/Summary/Keyword: Space Resource

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Application and Utilization of Social Network Resource: Concentrated on Changes of Spatial Meaning (소셜 네트워크 리소스(Social Network Resource)의 적용과 활용 -공간적 의미의 변화를 중심으로-)

  • Lee, Byung-Min
    • Journal of the Economic Geographical Society of Korea
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    • v.16 no.1
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    • pp.50-70
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    • 2013
  • The creation of new economic paradigm shift in creative economy age have influence on the characteristics of social networks and space, it leads to the formation of new relationship in space depending on social network service development. In this paper, it gives a name to 'social network resource' the power affecting these features and to find the meaning of spatial changes in the economic geography perspectives. 'Social network resource' shows the characteristics of openness, sharing, participation and cooperation, with features of encompassing all the features of local and global characteristics in space. This features are related the meaning of 'trans-locality' and can be found in the case of 'WikiSeoul.com (http:/www.wikiseoul.com)', Seoul's social knowledge sharing web platform. In particular, physical resources, human resources, information resources, and the characteristics of the relationship as a resource features was found and these features appear in space is projected to the space of social relations, it reflects the characteristics of qualitative space regarding social network resource.

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Activity Creating Method for Multi-Unit Projects

  • Yi, Kyoo Jin;Lee, Hyun Soo
    • Architectural research
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    • v.4 no.1
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    • pp.53-61
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    • 2002
  • The typical Critical Path Method (CPM) leaves it to the construction managers to overcome two problems in developing networks. First, the construction manager needs to prepare information on the type of activities and their precedence relations in order to develop a network schedule. Second, he or she can include space information into the network schedule such as the locations where the activities take place, only with difficulty. These two problems make it difficult for an inexperienced person to create a network. The purpose of this paper is to provide construction managers with set equations of creating a network schedule for multiunit projects. A space-resource combined network creation are presented in this paper, which includes equations for generating a list of required activities, their precedence relations, and information on their location. Information on the space (location) and the resource is the required data for this method. Based on this information, this method divides a project into a number of activities so that each activity contains the information on the location where the activity takes place and the principal resource required for that activity. Precedence relations are then obtained from the sequence of space and resource. This method has the potential to reduce human efforts in scheduling activities.

Legal Issues in Commercial Use of Space Resources: Legal Problems and Policy Implications of U.S. Commercial Space Launch Competitiveness Act of 2015 (우주 자원의 상업적 이용에 관한 법적 문제 - 미국의 2015년 '우주 자원의 탐사 및 이용에 관한 법률' 의 구조와 쟁점 -)

  • Kim, Young-Ju
    • The Korean Journal of Air & Space Law and Policy
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    • v.32 no.1
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    • pp.419-477
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    • 2017
  • In Space contains valuable natural resources. These provide a compelling reason for entrepreneurs, investors, and governments to pursue space exploration and settlement. The Outer Space Treaty of 1967 explicitly forbids any government from claiming a celestial resource such as the Moon or a planet. Article II of the Outer Space Treaty states that "outer space, including the Moon and other celestial bodies, is not subject to national appropriation by claim of sovereignty, by means of use or occupation, or by any other means." The U.S. Commercial Space Launch Competitiveness Act of 2015 (CSLCA), however, makes significant advances in furthering U.S. commercial space industry, which explicitly allows U.S. citizens to engage in the commercial exploration and exploitation of 'space resources' including water and minerals. Thus, some scholars argue that the United States recognizing ownership of space resources is an act of sovereignty, and that the act violates the Outer Space Treaty. This paper suggests that it is necessary to guarantee the right to resources harvested in outer space. More specifically, a private ownership of extracted space resources needs to promote new space business and industry. As resources on Earth become increasingly difficult and expensive to mine, it is clear that our laws and policies must encourage private appropriation of space resources. CSLCA which addresses all aspects of space resource extraction will be one way to encourage space commercial activity.

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A Study about the Transfer Crane Operation Rules consider with Space Resource and Multi Job (공간자원 및 다작업원칙을 고려한 트랜스퍼 크레인 운영규칙에 관한 연구)

  • Kim, Woo-Sun;Choi, Yong-Suk
    • Journal of Navigation and Port Research
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    • v.28 no.8
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    • pp.721-726
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    • 2004
  • This study was performed to analyze the operation system of transfer crane to improve the reality of yard operation rules in container terminal and present the applicable method of operation rules to apply the operation priority. And we derived the procedure to estimate the maximum number of waiting truck based on the waiting of truck and the occupancy of driving lane in yard, and analyzed the constraint state of space. To solve the space constraint, we provided a multi-job principle to define the space resource and described the solution and sequence diagram for the principle.

Global Trends of In-Situ Resource Utilization (우주 현지자원활용 글로벌 동향 )

  • Dong Young Rew
    • Journal of Space Technology and Applications
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    • v.3 no.3
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    • pp.199-212
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    • 2023
  • In contrast to the short-term nature of lunar missions in the past, lunar missions in new space era aim to extend the presence on the lunar surface and to use this capability for the Mars exploration. In order to realize extended human presence on the Moon, production and use of consumables and fuels required for the habitation and transportation using in-situ resources is an important prerequisite. The Global Exploration Roadmap presented by the International Space Exploration Coordination Group (ISECG), which reflects the space exploration plans of participating countries, shows the phases of progress from lunar surface exploration to Mars exploration and relates in-situ resource utilization (ISRU) capabilities to each phase. Based on the ISRU Gap Assessment Report from the ISECG, ISRU technology is categorized into in-situ propellant and consumable production, in-situ construction, in-space manufacturing, and related areas such as storage and utilization of products, power systems required for resource utilization. Among the lunar resources, leading countries have prioritized the utilization of ice water existing in the permanent shadow region near the lunar poles and the extraction of oxygen from the regolith, and are preparing to investigate the distribution of resources and ice water near the lunar south pole through unmanned landing missions. Resource utilization technologies such as producing hydrogen and oxygen from water by hydroelectrolysis and extracting oxygen from the lunar regolith are being developed and tested in relevant lunar surface analogue environments. It is also observed that each government emphasizes the use and development of the private sector capabilities for sustainable lunar surface exploration by purchasing lunar landing services and providing opportunities to participate in resource exploration and material extraction.

Determination of the Suitability Evaluation Indices of a Riverside-Reservoir Space Planning (천변저류지 공간계획의 적합성 평가지표 선정)

  • Jang, Dong-Su;Baek, Mi-Na
    • KIEAE Journal
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    • v.9 no.3
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    • pp.21-27
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    • 2009
  • The goal of this paper is to determine the suitability evaluation indices of a riverside reservoir space planning by classifying major indicators and calculating AHP(Analytical Hierarchy Process) based weights of them. The major indicators were set up based on literature review and questionnaire survey to experts. Four indicator categories were developed: location, environment, resource availability and economical efficiency. And they were divided into 12 sub-categories for calculating AHP-based weights. First, as for the major indicator categories, the calculation shows that the weighted index of environment is the most important at 0.458, followed by location at 0.128, economical efficiency at 0.170 and resource availability at 0.154. This suggests that environment is getting more public attention and the reservoir is regarded as a facility that is connected to a river. Those weight values were considered in calculating final weights for each of 12 sub-categories. Among them water quality and ecological environment take top ranks at 0.190 and 0.186, respectively. The lower ranks include access 0.112, resource availability of site 0.082, tourism resource 0.078, users 0.076, available land 0.052, area of site 0.031, shape of site and deterioration level 0.030 and percentage of private land 0.030 - which represents general considerations in other space planning. The difference of the top rank (water quality, 0.190) and the last one (percentage of private land, 0.027) is 0.163. The above result shows that users regard environmental aspect and resource availability more important than easiness of construction.

Comparison of Offshore Wind Retrieval Software from SAR Satellite Imagery (SAR 위성영상 해상풍 추출 소프트웨어 비교)

  • Kim, Hyun-Goo;Hwang, Hyo-Jung;Kang, Yong-Heack;Yun, Chang-Yeol
    • New & Renewable Energy
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    • v.9 no.3
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    • pp.14-19
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    • 2013
  • Comparative evaluation of offshore wind retreival software, which use the satellite images taken by Synthetic Aperture Radar sensor; SARTools of CLS-SOPRONO, France and SpaceEye of London Research and Development Corporation, Canada is carried out. For a reference satellite image, ENVISAT ASAR imagery of Jeollanam-do Wan-do area when the winter-time northwestern wind prevails is processed by CMOD_IFR2, CMOD4, CMOD5 algorithms. Wind speed difference and its relative ratio are calculated to evaluate uncertainty of software selection.

Heuristic Algorithms for Resource Leveling in Pre-Erection Scheduling and Erection Scheduling of Shipbuilding (조선 선행탑재 및 탑재 일정계획에서의 부하평준화를 위한 발견적 기법)

  • Woo, Sang-Bok;Ryu, Hyung-Gon;Hahn, Hyung-Sang
    • IE interfaces
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    • v.16 no.3
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    • pp.332-343
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    • 2003
  • This paper deals with pre-erection scheduling and erection scheduling in shipbuilding. Among shipbuilding scheduling, the ship erection scheduling in a dock is one of the most important since the dock is the most critical resource in a shipyard. However, it is more reasonable to consider pre-erection scheduling and erection scheduling as unified because they compete with the common constrained resources such as labor, crane, space, and so on. It is very hard to consider two scheduling problems simultaneously, and hence, we approach them sequentially. At first, we propose space resource leveling heuristics in pre-erection scheduling given erection date. And then, considering the manpower resource determined by pre-erection scheduling, we also propose manpower resource leveling heuristics in erection scheduling. Various experimental results with real world data show that the proposed heuristics have good performance in terms of scheduling quality and time.

An Analysis on Husbands and Wives' Time Distribution and Space Occupancy in the Division of Labor (부부의 노동분담에 대한 시간대별 활동 및 공간활용도 분석)

  • Yoon So-Young
    • Journal of Family Resource Management and Policy Review
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    • v.9 no.4
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    • pp.21-40
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    • 2005
  • The purpose of this study was to exam the activities by the distribution of time and space occupancy on their weekday and weekend. to study the space and labor segregation by sex. The sample population included 23 wives and their husbands(30-40 years old). The major findings of the research are as follows: First, it shows that wives' time use by activity was consistent with the space occupancy on weekday. Second, on weekend, wives was used to stay in living room most of time. Thirdly, husbands show the stereotype of time use on weekday, and substitute leisure time for labor time. Finally, on weekend, the wives and husbands have the joint time in the household labor or leisure activities.

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