• 대기
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• 제32권1호
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• pp.17-25
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• 2022

As climate change due to global warming continues to be accelerated, various extreme events become more intense, more likely to occur and longer-lasting on a much larger scale. Recent studies show that global warming acts as the primary driver of extreme events and that heat-related extreme events should be attributed to anthropogenic global warming. Among them, both terrestrial and marine heat waves are great concerns for human beings as well as ecosystems. Taking place around the world, one of those events appeared over East Sea in July 2021 with record-breaking high temperature. Meanwhile, climate condition around East Sea was favorable for anomalous warming with less total cloud cover, more incoming solar radiation, and shorter period of Changma rainfall. According to the results of wave activity flux analysis, highly activated meridional mode of teleconnection that links western North Pacific to East Asia caused localized warming over East Sea to become stronger.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2007년도 정기학술발표대회 논문집
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• pp.567-570
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• 2007

최근의 이상기후현상은 지구온난화에 의한 것으로 전 세계적으로 많은 영향을 미치고 있으며, 모든 산업분야에서 이슈가 되고 있다. 우리나라도 지구온난화로 인해 기후변화를 겪고 있으며, 건설 산업 또한 이러한 영향으로부터 자유로울 수 없다. 그러나 아직까지 건설 분야에서 이와 관련한 연구는 미미한 실정이다. 따라서 이에 대한 필요성을 인식 하고 현재 수준을 파악하기 위해, 본 연구에서는 지구온난화가 건설업에 미치는 영향 중 건설공기부분에 초점을 맞추어 분석하였다. 그 결과 지구온난화로 인한 기후변화에 따라 철근콘크리트 공사의 작업불능일의 변화추이를 살펴볼 수 있었고, 이를 토대로 지구온난화가 건설 공기에 미치는 영향의 일부를 파악할 수 있었다. 본 연구는 향후 기후와 함께 변화하는 국내 건설 산업의 미래를 예측하고, 이에 대응하기 위한 기초자료로 활용될 수 있으리라 기대된다.

• 한국응용곤충학회지
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• 제47권3호
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• pp.209-216
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• 2008

지구온난화로 인한 나비 생활주기 변화를 파악하기 위해 광릉 숲에서 1958년과 2004년에 주별로 조사한 나비모니터링 자료를 분석하였다. 본 연구에서는 1958년에 비해 2004년에 나비류의 최초 출현시기와 평균 출현시기가 빨라졌는지, 출현기간이 길어졌는지를 검토하였다. 최초발생시기와 발생기간에서는 차이가 나타나지 않았고, 평균 출현시기에서는 느려진 종들이 오히려 많았다. 따라서 본 연구에서는 지구온난화로 예상되는 나비류 생활주기의 변화를 확인할 수 없었다. 기온 증가에도 불구하고, 예견되는 생활주기 변화가 나타나지 않은 원인을 검토하였다. 아울러 국내의 나비를 지구온난화 지표로 적절하게 활용하기 위해, 현재 나비상 연구에 있어서 문제점과 해결책을 검토하였다.

• 태양에너지
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• 제11권1호
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• pp.92-97
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• 1991

화석에너지로 부터 방출되는 온실효과 가스와 지구 온난화 현상에 대하여 조사하였다. 세계의 사회경제활동과정에서 가속화가 예상되는 에너지 수요증가에 대응하기 위하여, 온실가스 배출을 감소시킬 화석에너지 이용시스템과 핵에너지와 청정자원인 재생에너지를 포함한 종합적인 에너지공급시스템개념에 대하여 고찰하였다.

• 대기
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• 제20권3호
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• pp.379-386
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• 2010

현재 지구온난화로 인하여 산악 및 육상 빙하가 녹고 있으며, 이는 해수의 순환변화를 초래한다. 온난화는 또한 몬순의 변화를 일으켜 집중호우, 홍수, 가뭄등의 빈도수와 지속기간을 증가 시킨다. 특히 온난화로 인한 집중호우의 증가는 해양으로 유기탄소의 유입을 증가시켜 해양은 더욱 더 이산화탄소 농도가 높아지며 해수는 부식성이 강하며 산성화 되어 생물체를 죽이며 궁극적으로 생물 다양성이 감소된다. 현재처럼 이산화탄소를 계속 배출할 경우 미래의 해양은 산성화되어 탄산칼슘으로 구성된 생물체의 각을 녹여 생물체가 죽으며, 이는 먹이사슬의 변화를 초래해 생태계에 부정적인 영향을 미친다. 만약 현재처럼 이산화탄소를 배출할 경우 IPCC 의 예측처럼 2100년까지 $6^{\circ}C$ 상승하며, 이는 열 염분순환을 중지시켜 생물체의 대량 멸종을 초래 할 수 있다(Stokstad, 2002).

• Journal of Acupuncture Research
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• 제26권4호
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• pp.11-18
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• 2009

Objectives : The objective of this review was to evaluate clinical trials of warming acupuncture for musculoskeletal pain diseases, to assess the methodologic quality of the trials and determine whether low-quality trials are associated with positive outcomes, to document adverse effects and to identify the effectiveness of the warming acupuncture. Methods : Seven databases and the Journal ZHONGGUO ZHENJIU(中國鍼灸) published between 2004－2008 were searched. Korean and Chinese randomized trials were evaluated for methodologic quality using the modified Jadad scale. Outcome measurements were pain, function and global improvement. The best-evidence synthesis was performed to determine the strength of evidence by control group. Results : Six clinical trials representing 564 patients with musculoskeletal pain diseases were identified. For pain and function, there was moderate evidence that warming acupuncture is more effective than manual acupuncture. For patient global assesment, there was limited evidence that warming acupuncture is more effective than manual acupuncture. However, for function, there was inconclusive evidence that warming acupuncture is more effective than acupuncture with TDP or western medicine or acupoint-injection treatment. Conclusions : The evidence suggests that warming acupuncture is more effective for musculoskeletal pain diseases than manual acupuncture, acupuncture with TDP, western medicine and acupoint-injection treatment. But the evidence is moderate to inclusive due to the low methodologic quality of the trials. Further clinical trials with high methodologic quality is required to investigate the effectiveness of warming acupuncture.

• International Journal of Railway
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• 제2권1호
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• pp.22-29
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• 2009

A simple pendulum shows how efficient gravity is in recovering energy. Any transportation is a linearly oscillating system; every load gains kinetic energy, but loses the same to come to a stop. The Gravity Power Towers comprise of a set of vertically moving heavy masses coupled, through microprocessor controlled continuously variable gear and cable system, to a horizontally rolling unit on wheels either on rail or road. The heavy masses move vertically up against gravity gaining potential energy while stopping a moving mass; move down under gravity force, giving out energy. The Tower thus accelerates or sustains the speed a rolling unit, and while decelerating, recover the kinetic energy. Speeds of 360 kmph can be attained. Recovery of energy varies from 98.5-70%; the longer the distance between stops, the lesser is recovery. The economical, omnipresent & eternal Gravity Power grants energy independence to many a nation. Global warming reduces.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.219-222
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• 2009

Green ocean is one of the main issues internationally. Most governments are leading the role in boosting the economy through creating new green market and establishing system of coping with increasing international environmental regulation. Green ocean, which is a solution for the environmental issue of global warming, is applied throughout the industry. Domestic transportation industry including railway is also developing technology for creating green ocean. Transportation must decrease energy consumption at running stages because it shows high environmental loads expecially on using stages during its life cycle. Therefore, There are some tries for developing technologies; new engine through alternative energies, hybrid and lightweight. Railway transportation can not be exception. it is intended for this paper to suggest the direction of manufacturing environmentally friendly railway vehicle through the global warming effect evaluation of several materials being applied to vehicle and comparison of the results.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2000년도 춘계 학술대회논문집
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• pp.14-19
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• 2000

A coupled general circulation model (GCM) of the global atmosphere, oceans and lands is used for finding the future climate at times of doubled carbon dioxide concentration (DCDC) of the atmosphere. Two runs of the model were made in order to find the future change. Global changes at times of DCDC may be characterized by a global warmig of $1.4^{\circ}C$, a $3\%$ global precipitation increase, and an increase in the surface available water (SAW) over the global land among others. The estimated increase in SAW over the land implies that river discharge is likely to increase with increased chance of severe weather as a result of the future global warming.

• 한국환경과학회지
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• 제20권6호
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• pp.755-765
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• 2011

Nitrous oxide ($N_2O$) is one of six greenhouse gases listed up in the Kyoto Protocol, and it effects a strong global warming because of its much greater global warming potential (GWP), by 310 times over a 100-year time horizon, than $CO_2$. Although such $N_2O$ emissions from both natural and anthropogenic sources occur, the latter can be controlled using suitable abatement technologies, depending on them, to reduce $N_2O$ below acceptable or feasible levels. This paper has extensively reviewed the anthropogenic $N_2O$ emission sources and their related compositions, and the state-of-the-art non-catalytic and catalytic technologies of the emissions controls available currently to representative, large $N_2O$ emission sources, such as adipic acid production plants. Challengeable approaches to this source are discussed to promote establishment of advanced $N_2O$ emission control technologies.