• Advances in environmental research
• /
• 제9권2호
• /
• pp.97-107
• /
• 2020

The indiscriminate growth in global population poses a threat to the world in handling and disposal of Municipal solid waste. Rapid urban growth increases the production, consumption and generation of Municipal solid waste which leads to a drastic change in the environment. The methane produced from the Municipal Solid waste accounts for up to 11% global anthropogenic emissions, which is a major cause for global warming. This study reports the methane emission estimation using IPCC default, TNO, LandGEM, EPER and close flux chamber from open dump yards at Perungudi and Kodungaiyur in Chennai, India. The result reveals that the methane emission using close flux chamber was in the range of 8.8 Gg/yr-11.3 Gg/yr and 6.1Gg/yr to 9.1 Gg/yr at Kodungaiyur and Perungudi dump yard respectively. The per capita waste generation was estimated based on waste generation and population. The waste generation potential was projected using linear regression model for the period 2017-2050. The trend of CH₄ emission in the actual field measurement were increased every year, similarly the emission trend also increased in IPCC default method (mass balance approach), EPER Germany (zero order decay model) where as TNO and Land GEM (first order decay model) were decreased. The present study reveals that Kodungaiyur dump yard is more vulnerable to methane emission compared to Perungudi dump yard and has more potential in waste to energy conversion mechanisms than compare to Perungudi dump yard.

• 터널과지하공간
• /
• 제32권3호
• /
• pp.173-193
• /
• 2022

본 연구에서는 GMG (Global Mining Guidelines Group)에서 개발한 광업 분야 가이드라인을 중심으로 스마트 마이닝 기술 국제 표준화 동향을 분석하였다. GMG는 글로벌 광업 커뮤니티를 하나로 묶는 비영리 단체이며, 광업의 안전과 혁신, 지속가능성을 제고시키기 위한 목적으로 설립되었다. 현재 GMG의 실무그룹은 인공지능, 자산관리, 자율 채광, 사이버 보안, 데이터 접근 및 사용/상호 운용성, 전기화, 광물 처리, 지하 채광, 지속가능성 실무그룹으로 구성되어 있다. 스마트 마이닝 기술과 관련한 가이드라인 개발 프로젝트는 인공지능, 자율 채광, 사이버 보안, 데이터 접근 및 사용/상호운용성, 지하 채광 실무그룹에서 진행되고 있다. 2022년 4월 현재 8종의 스마트 마이닝 관련 가이드라인은 사전 착수, 착수, 가이드라인 정의, 콘텐츠 생성, 기술 수정, 레이아웃 및 최종 검토, 투표 과정을 거쳐 출판되었다. GMG에서 출판한 가이드라인은 국내 스마트 마이닝 기술 표준 개발에 있어 중요한 참고 자료가 될 수 있을 것이라 판단된다.

• East Asian Economic Review
• /
• 제23권4호
• /
• pp.353-379
• /
• 2019

This paper aims to determine factors causing the stagnation of Korean firms' fixed investment after the global financial crisis, using panel data for the period of 1999-2016. Fixed investment remained sensitive to cash flow and Tobin's q although their effects decreased after the global financial crisis. A decreasing trend of cash flow and an increase in Tobin's q since the early 2000's imply that the worsening cash flow was a major factor behind the sluggish investment after the crisis. Meanwhile, debt-equity ratio remained significant for non-chaebol affiliated firms, reflecting disparity in access to external financing. Volatility of stock returns also became insignificant after the crisis, casting doubt on the argument that uncertainty was a major factor contributing to the decline of fixed investment. Analysis of financial investment confirmed the significant effect of cash flow, larger than that on financial investment than on fixed investment. In particular, debt repayment and other financial investment, except share repurchase, were sensitive to cash flow. However, the substitution of fixed investment by financial investment is a consequence, rather than a cause of declining fixed investment.

• East Asian Economic Review
• /
• 제21권4호
• /
• pp.317-342
• /
• 2017

The US dollar has kept as a position of key currency in the global economy in the changing international monetary system where the euro was introduced to some states of the EU in 1999. It is an evidence of inertia of the US dollar as a key currency. Our previous study (Ogawa and Muto, 2017b) conducted empirical analysis to investigate effects of several events on inertia of the US dollar. One of our findings was that the introduction of the euro increased utility of euro while utility of US dollar was kept unchanged. This paper examines the effects of the global financial crisis and the euro zone crisis as well as the introduction of the euro on the utility of the Japanese yen. The introduction of the euro significantly decreased the utility of the Japanese yen. It indicates that the introduction of the euro increased the utility of the euro while reducing the utility of the Japanese yen rather than the utility of the US dollar. The utility of the Japanese yen has significantly decreased while the global financial crisis and the euro zone crisis occurred. The Japanese yen has a declining trend in terms of its utility over time in the changing international monetary system.

• Ocean and Polar Research
• /
• 제24권4호
• /
• pp.369-389
• /
• 2002

CTD data taken in the Ulleung Basin between 1996 and 2001 are analyzed to understand the hydrography around Dokdo. Major features occurring in the Ulleung Basin such as the path variability of the East Korean Warm Current (EKWC), the location and size of the Ulleung Warm Eddy (UWE) and the position of the Offshore Branch along the Japanese coast all influence the hydrography around Dokdo. The Dokdo area frequently lies in the eastern part of the meandering EKWC and the UWE that results in a filting of isolines sloping upwards to Dokdo in the Ulleung Interplain Gap (UIG) between Ulleungdo and Dokdo. Subsurface water near Dokdo then becomes colder and less saline than water near Ulleungdo. Two cases that are opposite to this general trend are also identified when the Dokdo area is directly affected by the EKWC and by a small scale eddy ffd by the Offshore Branch. High salinity cores and warm waters are then found near Dokdo with isolines sloping upwards to Ulleungdo. Freshening of the East Sea Intermediate Water was observed in the UIG when neither the EKWC nor the UWE was developed in the Ulleung Basin during June-November 2000.

• 수산경영론집
• /
• 제46권1호
• /
• pp.15-28
• /
• 2015

This research examined a task to foster into the export industry, through analyzing the competitiveness of the ornamental fish industry and identifying the position of Korea's ornamental industry in the world. Ornamental fish in Korea holds the world's leading aquaculture technology, but products are limited to a few species, lacking competitive products. In the case of aquarium supplies, the Korean technology level is receiving relatively positive marks in the global market, but ornamental fish products are lagging behind the global trend. In other words, Korea's ornamental fish industry has the overall technical foundation, but lacks differentiation in the global market. Meanwhile, Korea's market share of world trade market in fishery products is minimal. Growth was also analyzed not high compared to other countries. Various trade competitiveness index results rated very low in competitiveness, but it is hard to compare Korea with other countries which have already built a strong foundation in the ornamental fish industry. Therefore, for the mid to long term Korea should adapt a "Choice and concentration" strategy and focus on the production of ornamental fish and aquarium supplies, which will enable Korea to become differentiated in the global market and capture the world exports.

• 한국건설관리학회:학술대회논문집
• /
• 한국건설관리학회 2007년도 정기학술발표대회 논문집
• /
• pp.3-8
• /
• 2007

"The world is flat" as the popular author Thomas L. Friedman declares in his best belling book about the progress of business globalization in the $21^{st}$ century [3]. Construction projects and related businesses have been global since the 1800's, but it has never seen such rapid transformation in both scope and depth as in the past decade. Construction projects today often bring together international design talents, construction management firms, local and international labor forces, and global suppliers. On a visit to Dubai in the United Arab Emirates on the Persian Gulf, a person will experience the complexity of globalization of modern construction projects- with Arab owners, European engineering and design companies, American construction management teams, Korean general contractors, Jordanian subcontractors, and labor forces from Thailand, Indonesia, Turkey, and Sri Lanka. A count of material suppliers reveals over 60 countries involved, covering all continents. Indeed construction projects are getting more and more complex and competitive, as is the project execution. The trend toward globalization poses both challenges and opportunities to construction and engineering companies competing on a global scale. While global competition may be a threat to many companies, there are, however, many opportunities for synergistic collaborations that can create win-win scenarios for construction business, research, and education. This paper presents some of the opportunities between the U.S. and Asia in business integration, research collaboration on technologies, and educational development, which may mutually benefit countries on either side of the Pacific.

• 한국경제지리학회지
• /
• 제22권2호
• /
• pp.111-122
• /
• 2019

국제지형에서 인터넷의 효과와 핵심쟁점을 이해하는 작업은 각국의 발전전략을 비교, 분석함으로써 연구모델을 보다 심화시킬 수 있으며, 세계화의 영향력이 날로 커지는 사이버 공간의 발전에 대한 실증적인 연구의 기초자료로서 의의를 가진다. 이에 본 연구는 국제사회의 새로운 흐름을 결정하는 요인을 진단하기 위해 기존의 핵심요소인 경제성장을 중심으로 하는 객관적인 접근에서 확장하여 정보화와 함께 사회문화적인 가치체계를 반영하는 통합적인 분석틀을 제시하고자 한다. 사이버 공간을 통한 소통방식과 각국의 문화적 토대는 글로벌 공동체의 분권화를 향한 새로운 균형점의 가능성을 내포한다. 다원화된 네트워크 구조에서 온라인 공간에 참여하는 과정은 상호의존성을 반영할 뿐만 아니라 자발적인 협력관계에 의해 기존 질서로부터 벗어나 역동적인 권력이동의 함수관계를 포함하며 글로벌 공감사회를 향한 중요한 과제를 안겨주는 것이다.

• 복식
• /
• 제62권8호
• /
• pp.28-44
• /
• 2012

The aim of this research is to examine the tendency of national tastes reflected in global SPA brands based on the theories of Gans' taste culture and Bourdieu's cultural capital. In this study, the leading global SPA brands such as H&M, ZARA, GAP and UNIQLO can be considered as a representative taste culture as well as an icon of popular culture in the $21^{st}$ century global fashion and also the aesthetic taste of each brand differentiated from their national aesthetic values based on socio-cultural backgrounds. H&M represents fashionableness, practicality and environmental friendliness based on naturalism, democratic humanism, and functional practicality of Sweden. ZARA emerges as the most trend oriented brand as well as customer centered on the basis of cultural diversity, passion and glamorous artistic sensibility of Spain. GAP shows American iconic style, which is the functional sports casual wear, originated from American leisure culture and mass production. Lastly, UNIQLO represents high-tech functionalism and practical simplicity based on Japanese delicate workmanship and simple, concise lifestyle while relatively does not much follow the fashion forward trends. Consequently, the national taste has been proved as a solid foundation to identify each global brand. This should be the key component also applied to Korean global brands for developing their concepts and strategies more successfully based on our own national aesthetic taste.

• 한국환경과학회지
• /
• 제27권12호
• /
• pp.1169-1178
• /
• 2018

Two man-made carbon emissions, fossil fuel emissions and land use emissions, have been perturbing naturally occurring global carbon cycle. These emitted carbons will eventually be deposited into the atmosphere, the terrestrial biosphere, the soil, and the ocean. In this study, Simple Global Carbon Model (SGCM) was used to simulate global carbon cycle and to estimate global carbon budget. For the model input, fossil fuel emissions and land use emissions were taken from the literature. Unlike fossil fuel use, land use emissions were highly uncertain. Therefore land use emission inputs were adjusted within an uncertainty range suggested in the literature. Simulated atmospheric $CO_2$ concentrations were well fitted to observations with a standard error of 0.06 ppm. Moreover, simulated carbon budgets in the ocean and terrestrial biosphere were shown to be reasonable compared to the literature values, which have considerable uncertainties. Simulation results show that with increasing fossil fuel emissions, the ratios of carbon partitioning to the atmosphere and the terrestrial biosphere have increased from 42% and 24% in the year 1958 to 50% and 30% in the year 2016 respectively, while that to the ocean has decreased from 34% in the year 1958 to 20% in the year 2016. This finding indicates that if the current emission trend continues, the atmospheric carbon partitioning ratio might be continuously increasing and thereby the atmospheric $CO_2$ concentrations might be increasing much faster. Among the total emissions of 399 gigatons of carbon (GtC) from fossil fuel use and land use during the simulation period (between 1960 and 2016), 189 GtC were reallocated to the atmosphere (47%), 107 GtC to the terrestrial biosphere (27%), and 103GtC to the ocean (26%). The net terrestrial biospheric carbon accumulation (terrestrial biospheric allocations minus land use emissions) showed positive 46 GtC. In other words, the terrestrial biosphere has been accumulating carbon, although land use emission has been depleting carbon in the terrestrial biosphere.