지하 저수조 미활용 에너지를 이용한 소형 수열원 히트펌프의 경제성 분석

양철호(Chul-Ho Yang),김영일(Youngil Kim),정광섭(Kwang-Seop Chung) 대한설비공학회 2012 대한설비공학회 학술발표대회논문집 Vol.2012 No.6

Due to reinforcement of international environment regulation and high oil prices, interest in renewable energy is growing. Countries participating in UNFCCC are continuously putting efforts in reducing greenhouse gas after enforcing Kyoto Protocol into effect on Feb., 2005. Energy used in buildings, which relies heavily on fossil fuel accounts for about 24% of total energy consumption. In this study, air, geothermal and water source heat pump systems for an office building is simulated using TRNSYS version 17 for comparing energy consumption. The results show that energy consumptions of air, geothermal and water source heat pumps are 14,485, 10,249, and 10,405 kWh, respectively. Annual equal payments which consider both initial and running costs become 76,383,037, 80,864,689 and 75,246,579 Won. Thus, water source heat pump is the best economical choice.

해외재난 위기시 구호지원활동의 성공요인에 관한 연구

양철호(Chul Ho Yang)(楊澈鎬),박효선(Hyo Sun Park)(朴孝善) 위기관리 이론과 실천 2013 Crisisonomy Vol.9 No.9

최근에 아이티, 일본, 터키, 중국의 대지진은 많은 사상자와 더불어 엄청난 재산 피해를 발생시켜, 국제사회에서는 이들 국가에 구조팀을 파병하고 의료품, 식량 같은 구호물자를 지원 하는 등 피해복구 및 재건을 위한 공동의 노력을 전개하였다. 대한민국에서도 아이티 대지진시 UN 안보리 결의안에 따라 재건지원단(단비부대)을 파병하여 도로ㆍ건물 피해복구, 의료지원, 급수지원 등 공공시설 복구 및 주민 재건을 적극 지원하였다. 이 연구는 아이티 대지진시 재건지원단을 파병하여 피해복구 및 재건지원을 한 사례를 분석 성공요인을 도출하여 향후 대규모국제적 재해ㆍ재난으로 인한 해외파병 정책업무에 기여하는데 목적이 있다. 이를 위해 2010년 2월 6일부터 12월 31일까지 파병된 아이티 재건지원단 1,2진의 활동사례를 재건지원단 해외파병 성공요인 분석 틀(METT+TC)을 활용하여 분석하였다. 분석결과 아이티 재건지원단은 대한민국 최초 외국의 대규모 재해ㆍ재난지역에 대한 국제적 파병이었으며, 그 임무를 성공적으로 완수하였다. 성공요인은 첫째, 파병에 대한 정부ㆍ국회의 신속한 의사결정과 파병부대의 현지 상황과 특성에 맞는 통합적 지원이었다. 둘째는 현지 여건과 주민들의 성향을 고려한 효과적인 민사작전의 전개였다. 셋째는 현지에 파병되어온 외국군과의 다양한 교류활동과 협력이었다. 그러나 파병 후 조기 임무수행을 위한 사전 충분한 준비, 현지의 특성에 맞는 인력과 장비의 편성 등의 보완이 요구되었다. 따라서 아이티 재건지원단의 사례를 토대로 추가 발전시킨다면, 외국의 대규모 재해ㆍ재난 위기 발생시 성공적인 임무수행이 가능할 것이라 판단된다. Recent earthquake in Haiti, Japan, Turkey, and China, caused a huge property damage and the number of casualties. International community developed the joint efforts to support for disaster recovery and reconstruction including dispatching rescue teams, and sending relief supplies such as medical supplies, and food. According to the UN Security Council Resolution, the Republic of Korea dispatched the reconstruction support group, Danbi, to support both public recovery and civil reconstruction including road and building restoration, medical and water supply support. This study is aimed to contribute to the support services of overseas dispatch by analyzing the case and deriving the success factors of Danbi. For this, activities of the first and second Danbi from Feb 6 to Dec 31 in 2010, were analyzed by using frameworks for success factors of overseas dispatch(METT+TC). As a result of the analysis, Haiti reconstruction support group(Danbi) was Republic of Korea's first international dispatch for large-scale disaster and the mission was successfully accomplished. The first success factor was a rapid decision of the government and Congress, and the integrated supports according to the characteristics of the local situation. Second was the development of effective civil operations which considered the conditions of the local residents and the tendency. Third was a wide range of exchanges and cooperations with dispatched foreign troops. However, sufficient preparation for early missions and formation of personnel and equipment based on the local characteristics were required. Thus, if additional improvements are made based on the case of Haiti reconstruction support group, Danbi, it is considered that the successful mission could afford when foreign large-scale disaster occurs.

배기계 방사소음에 대한 소음기 셸/격벽간 접합구조의 영향

양철호(Yang, Chul-Ho) 한국소음진동공학회 2006 한국소음진동공학회 논문집 Vol.16 No.3

The effect of the joint condition of automotive muffler shell and baffle on radiated noise from muffler shell Is studied. Shell vibration characteristics, especially shift In natural frequency and change in of response amplitude, was identified from finite element analysis and modal tests for various joint conditions between shell and baffle. When there is heat expansion and inner pressure from the exhaust 9as in the muffler with elliptical cross section, the shell expands out, and construct gap with baffles. This gap causes more degrees of freedom of shell vibration and natural frequency shift. By welding the muffler shell to the baffles or using a dual shell muffler, the radiated noise problem could be mitigated supplying more a rigid joint and damping, respectively.

동특성 시뮬레이션을 이용한 공기, 지열 및 지하 저수조 열원 소형 열펌프의 경제성 분석

양철호(Chul-Ho Yang),김영일(Youngil Kim),정광섭(Kwang-Seop Chung) 한국지열·수열에너지학회 2012 한국지열에너지학회논문집 Vol.8 No.4

Due to reinforcement of international environment regulation and high oil prices, interest in renewable energy is growing. Countries participating in UNFCCC are continuously putting efforts in reducing greenhouse gas after enforcing Kyoto Protocol into effect on Feb, 2005. Energy used in buildings, which relies heavily on fossil fuel accounts for about 24% of total energy consumption. In this study, air, geothermal and water source heat pump systems for an 322 ㎡ auditorium in an office building is simulated using TRNSYS version 17 for comparing energy consumptions. The results show that energy consumptions of air, geothermal and water source heat pumps are 14, 485, 10,249, and 10,405 kWh, respectively. Annual equal payments which consider both initial and running costs become 5, 734, 521, 6, 403,257 and 5,596,058 Won. Thus, water source heat pump is the best economical choice.

족저부에 발생한 건활막 연골종증(1예 보고)

황정수,정필현,강석,김종필,김영성,양철호,이종임,Hwang, Chung-Soo,Chung, Phil-Hyun,Kang, Suk,Kim, Jong-Pil,Kim, Young-Sung,Yang, Chul-Ho,Lee, Jong-Im 대한족부족관절학회 2009 대한족부족관절학회지 Vol.13 No.2

Tenosynovial chondromatosis is a multinodular cartilaginous proliferation that arises from the tenosynovial membranes. It is rare, benign neoplasm, most commonly affects the tendon of the wrist and hand. It is clinically important because of its high rate of recurrence with a unique histopathological pattern which not infrequently displays considerable focal cellular atypia and hypercellurality nevertheless it is benign, but it has not been well recognized because of its rarity. We report here a rare case of tenosynovial chondromatosis of the tendon sheath of flexor hallucis longus and flexor digitorum longus in plantar area.

스텐트를 이용한 상완골 간부 골절과 동반한 상완 동맥 손상의 치료

강석(Suk Kang),정필현(Phil-Hyun Chung),황정수(Chung-Soo Whwang),김종필(Jong-Pil Kim),김영성(Young-Sung Kim),양철호(Chul-Ho Yang),나득영(Duk-Young Na) 대한정형외과학회 2010 대한정형외과학회지 Vol.45 No.6

상완골 간부 골절과 동반한 상완 동맥의 손상은 흔치 않게 발생하지만 즉각적인 혈류 회복을 위한 수술적 처치가 필요하다. 저자들은 53세 남자에서 상완골 간부 골절과 동반한 상완 동맥의 폐색을 혈관 내 스텐트 삽입으로 치료한 예를 문헌 고찰과 함께 보고하고자 한다. An injury to the brachial artery from humeral shaft fracture is uncommon but requires immediate surgery to restore the blood flow. We report a case of endovascular stenting to repair a brachial artery occlusion caused by humeral shaft fracture in a 53 year old male with a review of the relevant literature.

도시재가노인과 부양자를 위한 사회적 지원 방안 : 노인주간보호소를 중심으로 Day Care Center for Elderly

양철호 東新大學校 1998 論文集 Vol.10 No.-

This article examines the possibility of inter-disciplinary research in order to develope a social support program for frail elderly and family caregivers in urban area. The perspectives of seven different fields of study were examined to develope a model day care center for frail elderly. The day care center for frail elderly was suggested as a way of lighten the burden of family caregivers. In addition, possibility of fee-for-service and privatization of day care center for frail elderly was discussed.

워터펌프 베어링 돌출 유한 요소 해석

양철호 국립7개대학공동논문집간행위원회 2004 공업기술연구 Vol.4 No.-

A systematic method has been proposed to obtain a robust and reliable design of water pump system. A steady-state dynamic model has been developed to study the response of water pump system to the dynamic load due to the run-out and unbalance. Finite element analyses were performed to find a way of increasing natural frequency of the system and modify the design of water pump system. More reliable and robust solution was obtained by using a computational reliability and robustness method in the design of water pump system. This method considered influence of noise factors for the performance of design. By including noise factors to the system model in a systematic way, more robust and reliable design is expected.

조사연구에서 표본설계에 대한 고찰

양철호,양선화,신봉관,조지현 동신대학교 2005 論文集 Vol.15 No.-

Most of the survey research are conducted with samples. Thus, representativeness of the samples is crucial for the sound research. Reports of the various survey research were analized. The results of the analysis showed that different ways of sampling methods were utilized in various studies in order to ensure the selection of unbiased samples under the circumstances of purpose and population of the survey.

이중중합 수복재의 시간경과에 따른 중합도 변화

정태성,김신,양철호 大韓小兒齒科學會 1999 大韓小兒齒科學會誌 Vol.26 No.3

심미적 수복 재료인 복합 레진과 글래스 아이오노머 시멘트는 중합방식에 따라 화학중합형, 광중합형, 그리고 이 두 가지 중합방식을 겸비한 이중중합형으로 분류할 수 있다. 화학중합형과 광중합형에 대해서는 지금까지 다수의 보고가 있었으나, 충전용 복합 레진의 경우 이들과 이중중합형을 비교한 예는 아직 찾기 힘든 실정이었으므로,이러한 관점에서의 연구가 필요할 것으로 사료되었다. 이 연구에서는 이중중합 수복재가 단일중합방식에 비해 어떠한 특성을 보이는지를 탐구하고자 하였다. 사용된 재료는 광중합형 복합 레진인 Veridonfil-Photo와 이중중합형인 Bis-core,이중중합형인 글래스 아이오노머 시멘트인 Fuji Ⅱ LC와 화합중합형인 Ketac-fil을 사용하였다. 가로 30mm,세로 30mm 높이 1mm와 3mm인 두 종류의 아크릴릭 몰드 중앙에 직경 7mm의 hole을 형성하여, 여기에 4종의 수복재를 충전하였다. 충전 직후부터 시작하여 24시간 경과시까지 일정 시간 간격으로 표면, 1mm,3mm깊이에서의 경도를 미세경도계(Shimadzu Micro Hardness Tester HMV-2000,Shimadzu Co.Japan)로 측정하였다. 측정치를 통계처리하여 얻은 결과는 다음과 같다. 1.4종의 수복재 모두에서,중합직후에 비해 24시간 경과후의 미세경도가 증가되었다. 2.중합 직후부터 24시간 경과후의 미세경도를 측정한 결과, Ketac-fil을 제외한 나머지 수복재에서는 각 깊이간 경도의 차이가 있었다. 3.각 수복재의 최종중합에 도달하는 시간을 조사한 결과, 이중중합형이 3mm의 깊이에서 광중합형이나 화중합형에 비해 중합이 더 오래 지속된 것으로 나타났다. 이상의 결과에서 조사광이 충분히 도달하지 못하여 중합이 현저히 떨어지는 수복재의 심부에도 이중중합방식을 사용할 경우에는 지속적인 중합반응이 일어나 중합도가 증가하는 것으로 나타났다. For the purpose of elucidating the polymerization modes of dual-cure restorative materials and comparing them with single-cure restorative materials,a study was performed on the light-cured composite resin,dual-cure composite resin,dual-cure glass innomer cement. By measuring the microhardness of each material at 0mm,1mm and 3mm depth during initial 24 hours with predetermined interval,the state of polymerization and degree of conversion was indirectly evaluated for each material,and obtained results are as follow: 1.All of four materials tested showed significant increase in microhardness after 24hrs compared with just after curing starts. 2.In all materials except Ketac-fil,there showed a significant difference in microhardness between each depth at each time interval. 3.In the test of lap time till final curing for each material,the polymerization process was revealed to last longer in the dual-cure type materials than in single-cure type materials at 3mm depth. Based on the results avobe,it was demonstrated with materials of dual-cure mode that the degree of conversion increase by successive curing reactions even in the deeper layers where sufficient curing light is impermeable.