• 국제초고층학회논문집
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• 제12권1호
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• pp.11-18
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• 2023

The urbanity of high-rise buildings does not simply reference their physical characteristics but also encompasses their impact on the overall urban environment and the daily lives of citizens. This involves the economic benefits, social development, urban culture and public activities that high-rise buildings bring to a city. High-rise buildings are an important aspect of urban development and play a crucial role in providing public services in high-density urban habitats. However, to ensure that their contribution to the city is positive, it is essential to take into account their impact on surrounding buildings and the built environment. This paper analyzes their urban attributes and value system and summarizes their current development status. In short, as the demand for public services continues to evolve, it is necessary for high-rise buildings to keep up with these changes by continuously enhancing their urbanity.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.506-513
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• 2009

The Construction Industry Institute (CII) developed the Project Definition Rating Index (PDRI), as a part of their Front End Planning best practices, which helps project managers assess and measure project scope definition risk elements. U.S. Green Building Council are seeing the benefits of sustainable building and Leadership in Energy and Environmental Design certification by positively impacting life cycle costs, building marketability, and organizational productivity. However, there have been no efforts to integrate these two planning tools in construction industry. By applying a supplemental tool which combines the PDRI with the LEED rating system, construction industry can develop and implement a tailored instrument that leads to total project success in sustainability. The objective of this research is to assemble a new front end planning mechanism for green buildings by incorporating the current PDRI and LEED systems.

• International Journal of Industrial Entomology and Biomaterials
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• 제27권1호
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• pp.131-141
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• 2013

At the interface of reducing agricultural income and increasing unemployment in agrarian economy of rural India, this article summarizes and evaluates the state of mulberry sericulture in northwest India, which includes Himachal Pradesh, Punjab, Rajasthan, Uttarakhand, and Uttar Pradesh. In $11^{th}$ plan period (2007-2012), there was an addition of 6 196 ha (217.09 %) of mulberry acreage at annual linier growth rate of 33.44%. However, total silk production could increase only by 54.64 MT (78.57%) at annual linier growth rate of 15.59 %, due to 43.93% (10.82 kg/ha) reduction in silk productivity at negative growth rate of -13.46%, annually. And now, average raw silk productivity in north-western states of India remains at 13.81 kg/ha, which is lower by 452.93 % (76.36 kg) in comparison to the national average of 100.90 kg/ha. Paper summaries the reasons for increasing cocoon yield gap at farmer's level and discuss the ways and means to increase raw silk productivity to improve the livelihood delivery of mulberry sericulture in northwest India.

• 국제초고층학회논문집
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• 제3권1호
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• pp.49-64
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• 2014

Natural vibration period is an important parameter for high-rise building, Based on 414 high-rise buildings completed or passed over-limit approval in China, the distribution law of natural vibration periods is analyzied. In order to satisfy the design requirements, such as global stability, story drift limit and minimum shear-gravity ratio, the reference ranges of fundamental periods $T_1$ are $0.3{\sqrt{H}}{\sim}0.4{\sqrt{H}}$ when the structural heights $H{\geq}250m$, when 150 m ${\leq}$ H < 250m, $T_1=0.25{\sqrt{H}}{\sim}0.4{\sqrt{H}}$, when 100 m ${\leq}$ H < 150 m, $T_1=0.2{\sqrt{H}}{\sim}0.35{\sqrt{H}}$, when 50 m $ {\leq}$ H < 100m, $T_1=0.15{\sqrt{H}}{\sim}0.3{\sqrt{H}}$. These can provide reference data for controlling mass and rigidity of high-rise buildings.

• 국제초고층학회논문집
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• 제2권2호
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• pp.85-91
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• 2013

Tall building has some controversial aspects with low carbon city, but it is still a sensible choice for the metropolitan city. This paper aims to develop holistic urban design strategies to minimize impacts on the environment, increase energy efficiency and improve the quality of living in tall building communities by utilizing tall building characteristics. It puts forward the concept of integrated tall building-low carbon community design from the perspective of urban design, and summarizes five core strategies: Temporal state based on energy use, Complementary energy use state based on functions, Spatial state based on regional environment features, Transportation state based on low-carbon lifestyle and Waste utilization state based on tall building characteristics. It also applies the strategies to a practical project. The results show that the proposed urban design strategies are available approaches to mitigate the side effects of tall building on low carbon city.

• 국제초고층학회논문집
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• 제12권1호
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• pp.35-47
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• 2023

The transport system and its infrastructure are not only the fundamental means of sustaining the operation of contemporary cities, but also important drivers for the evolution of urban form. Rail transit, critical to improving the operational efficiency and optimizing the spatial layout in cities, is one of the critical conditions for high-density areas with limited land and concentrated resources to be compact to take on complex challenges. As a node element of infrastructure, rail transit entrances are the most important points connecting the rail transit system with urban space. Although influenced by urban form, their quantity and location also influence and shape the evolution of urban space form. Based on the development gap of high-density areas in various contexts, focusing on various rail transit stations in Asia, this research analyzes the correlation between rail transit entrances and peripheral high-density urban form in a delicate, dynamic and granular way. The research considers both horizontal and vertical perspectives, in combination with the urban evolution process in time series, to explore the development trend of high-density urban form in Asia from the aspect of correlation, and building a new foundation for research on urban form, suitable for different types of cities.

• 한국항공우주학회지
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• 제46권12호
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• pp.1056-1069
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• 2018

미 트럼프 행정부는 2018년 5월 24일 상업적 우주활동을 촉진하기 위한 규제개혁방향을 담은 우주정책명령 SPD-2(Space Policy Directive-2)를 발표하고, 뒤이어 6월 18일 우주상황 관리 정책에 관한 행정명령 SPD-3를 발표했다. 이 행정명령은 주요 우주 분야에 대한 개혁조치를 담고 있는데, 이 정책은 2017년 6월 재구성된 국가우주위원회(National Space Council: NSC)가 성안한 개혁 권고안을 대통령이 승인한 것으로 연방정부의 강력한 개혁추진을 위한 가이던스를 제공한다. 상업우주활동개혁정책은 앞서 2017년 12월 18일 발표된 국가안보전략(National Security Strategy)의 큰 틀에서 경제적 번영과 국가안보를 동시에 달성하기 위한 노력으로 이해할 수 있다. 상업적 우주활동을 촉진함으로써 미국의 국익을 달성하고자 하는 미국의 정책과 입법은 우주활동을 규율하는 우주조약을 위반한다는 우려와 논란을 불러일으킬 수 있다. 이에 국제사회는 미국의 상업우주개혁정책에서 노정되는 법적 쟁점에 대한 국제적 논의를 통해 우주기술의 발전과 상업화 진전에 맞는 보편적 국제 규범을 형성하기 위한 노력을 가속화해야 한다.

• Journal of Korea Trade
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• 제26권1호
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• pp.81-98
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• 2022

Purpose - This study aims to compare the requirements under the United Nations Convention on Contract for the International Sales of Goods (CISG) and the Korean Civil Act (KCA) regarding the buyer's right to require the delivery of substitute goods. The buyer's right to demand substitute delivery not only protect them from the seller's breach of contract but also preserves the contractual bond between the parties by providing an opportunity for sellers to protect their goodwill and circumvent the extreme remedy of avoidance. However, as substitute delivery entails additional efforts and costs for return and re-shipment, this right should not be allowed in every case of defect. Additionally, unlike the CISG, the KCA contains no specific provision related to the requirements for claiming substitute delivery. Therefore, it would be meaningful to examine and compare what requirements should be fulfilled before the buyer exercises the right in relation to non-conforming goods under the CISG and the KCA. Design/methodology - We conducted a comparative study of the requirements under the CISG and the KCA regarding the buyer's right to require delivery of substitute goods given a seller's delivery of non-conforming goods. Additionally, we referred to the opinions from the CISG Advisory Council, the draft of the KCA amendment, and related precedents, mainly focusing on the existence and severity of defects, reasonableness, and timely notice and requests as the major requirements for substitute delivery. Findings - The results of this study can be summarized as follows: First, the CISG provides more detailed requirements about the right to require delivery of substitute goods; by contrast, the KCA does not stipulate any such requirement. Thus, specific requirements for substitute delivery should be included when amending the KCA. Second, the CISG attempts to minimize overlapping and conflict with other remedies by specifying detailed requirements for the delivery of substitutes. Third, both the CISG and KCA require reasonableness for substitute delivery. Originality/value - Although there are no explicit legal requirements for substitute delivery under the KCA, there has been relatively little discussion of this issue to date. Therefore, the findings of our study can guide future revisions of the KCA to fill this loophole. Moreover, the recently released CISG Advisory Council opinion that clarifies the continuing confusion and debate, can help distinguish which remedy is suitable for a particular case. It may provide practical advice for businesspeople in international trade as well as legal implications for the future development of the KCA.

• 대한교통학회지
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• 제25권1호
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• pp.81-91
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• 2007

오늘날 기업 경영에 있어서 경쟁력 있는 글로벌한 공급사슬의 형성을 중요하게 간주되고 있다. 특히, 물류 및 운송부문에 있어서 서비스를 매우 중요한 가치 영역으로 보고 있다. 더욱이 동북아 허브 공항이 되기 위한 치열한 경쟁 속에서 인천국제공항 여객터미널의 서비스품질은 매우 중요한 영역이다. 본 연구는 인천국제공항의 여객터미널 서비스품질 측정 요인 및 항목을 선정하고 이용자 및 서비스 제공자간의 인식의 차이를 측정하며 서비스품질에 영향을 미치는 요인들을 확인한 후, 선호투표에 의한 자료포락분석을 통해 서비스품질을 향상시킬 수 있는 선호 요인과 항목을 찾아내었다. 연구 분석 결과 첫째, 인천국제공항 여객터미널의 서비스품질에 대한 요인은 신뢰성, 반응성 보증성, 공감성, 교통운영 편의시설, 출입국 심사, 환경적 요인 등 8가지 요인. 33개의 항목이 선정되었다. 여객터미널 이용자 및 서비스 제공자간의 서비스품질 측정 결과, 총 33개 항목 중에서 공항이용객과 IIAC 직원들 간에는 29개의 항목, 공항이용객과 항공사 직원들 간에는 7개의 항목, 항공사 직원들과 IIAC 직원들 간에는 31개의 항목에서 서비스 이용자 및 서비스 제공자간에 인식의 차이가 있는 것으로 나타났다. 둘째, 여객터미널 서비스품질 상업시설 서비스, 여객터미널 접근의 편리성, 항공사의 서비스품질, IIAC의 지역사회 공헌 등은 인천국제공항 서비스품질 전체 만족도에 영향을 미치는 통계적으로 유의한 결과를 밝혀냈다.

• 국제초고층학회논문집
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• 제3권3호
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• pp.231-241
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• 2014

Ductile fracture is one of the most common failure modes of steel beam-to-column connections in moment resisting frames. Most proposed evaluation methods of the plastic deformation capacity of a beam until ductile fracture are based on steel beam tests, where the material's yield strength/ratio, the beam's moment gradient, and loading history are the most important parameters. It is impossible and unpractical to cover all these parameters in real tests. Therefore, a new attempt to evaluate a beam's plastic deformation capacity through analysis is introduced in this paper. Another important issue is about the loading histories. Recent years, the effect on the structural component under long-duration ground motion has drawn great attentions. Steel beams tends to experience a large number of loading cycles with small amplitudes during long-duration earthquakes. However, current research often focuses on the beam's behavior under standard incremental loading protocols recommended by respective countries. In this paper, the plastic deformation capacity of steel beams subjected to long duration ground motions was evaluated through analytical methodology.