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전체 선택해제
총 138건 검색
본문검색 결과만 보기
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INVESTIGATION OF EMISSION RATES OF AMMONIA, NITROUS OXIDE AND OTHER EXHAUST COMPOUNDS FROM ALTERNATIVE- FUEL VEHICLES USING A CHASSIS DYNAMOMETER
Huai. T., Durbin. T.D., Rhee. S.H., Norbeck. J.M. 한국자동차공학회 International journal of automotive technology 11 Pages
한국자동차공학회 International journal of automotive technology 2003, Vol.4 No.1 9-19 (11 pages)
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DYNAMIC MODELING AND ANALYSIS OF ALTERNATIVE FUEL CYCLE SCENARIOS IN KOREA
Jeong. Chang-Joon, Choi. Hang-Bok 한국원자력학회 Nuclear engineering and technology : an international journal of the Korean Nuclear Society 10 Pages
한국원자력학회 Nuclear engineering and technology : an international journal of the Korean Nuclear Society 2007, Vol.39 No.1 85-94 (10 pages)
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Estimated CO2 Emissions and Analysis of Solid Recovered Fuel (SRF) as an Alternative Fuel
Kim. Sang-Kyun, Jang. Kee-Won, Hong. Ji-Hyung, Jung. Yong-Won, Kim. Hyung-Chun 한국대기환경학회 Asian journal of atmospheric environment 8 Pages
한국대기환경학회 Asian journal of atmospheric environment 2013, Vol.7 No.1 48-55 (8 pages)
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Optimal Metal Dose of Alternative Cathode Catalyst Considering Organic Substances in Single Chamber Microbial Fuel Cells
Nam. Joo-Youn, Moon. Chungman, Jeong. Emma, Lee. Won-Tae, Shin. Hang-Sik, Kim. Hyun-Woo 대한환경공학회 Environmental engineering research 6 Pages
대한환경공학회 Environmental engineering research 2013, Vol.18 No.3 145-150 (6 pages)
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Activating needle coke to develop anode catalyst for direct methanol fuel cell
Young Hun Park, Ui-Su Im, Byung-Rok Lee, Dong-Hyun Peck, Sang-Kyung Kim, Young Woo Rhee, Doo-Hwan Jung 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2016, Vol.20 7 47-52 (6 pages)
direct methanol fuel cell using needle coke as anode supporter. The results of research on support loaded with platinum-ruthenium suggest that an activated KOH needle coke container has the lowest onset potential and the highest degree of catalyst activity among all commercial catalysts. Through an analysis of the CO stripping voltammetry, we found that KOH activated catalysis showed a 21% higher electrochemical active surface area (ECSA), with a value of 31.37 m2/g, than the ECSA of deactivated... -
Utilization of alternative marine fuels for gas turbine power plant onboard ships
El Gohary. M. Morsy, Seddiek. Ibrahim Sadek 대한조선학회 International journal of naval architecture and ocean engineering 12 Pages
대한조선학회 International journal of naval architecture and ocean engineering 2013, Vol.5 No.1 21-32 (12 pages)
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CNG/LPG Bi-fuel 승용차의 배출가스 특성
조종표, 이영재, 김강출, 권오석, Cho. Chong-Pyo, Lee. Young-Jae, Kim. Gang-Chul, Kwon. Oh-Seuk 한국자동차공학회 한국자동차공학회논문집 6 Pages
한국자동차공학회 한국자동차공학회논문집 2011, Vol.19 No.2 142-147 (6 pages)
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Butyrate regulates leptin expression through different signaling pathways in adipocytes
Mohamed Mohamed Soliman*, Mohamed Mohamed Ahmed, Alaa-eldin Salah-eldin, Abeer Abdel-Alim Abdel-Aal 대한수의학회 Journal of Veterinary Science 5 Pages
대한수의학회 Journal of Veterinary Science 2011, 제 12권 제 4호 3 319-323 (5 pages)
Leptin is an adipocytokine that regulates body weight, and maintains energy homeostasis by promoting reduced food intake and increasing energy expenditure. Leptin expression and secretion is regulated by various factors including hormones and fatty acids. Butyrate is a short-chain fatty acid that acts as source of energy in humans. We determined whether this fatty acid can play a role in leptin expression in fully differentiated human adipocytes. Mature differentiated adipocytes were incubated... -
Efficacy of nano-hydroxyapatite prepared by an aqueous solution combustion technique in healing bone defects of goat
Samit Kumar Nandi, Biswanath Kundu*, Samir Kumar Ghosh, Dipak Kumar De, Debabrata Basu 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 2호 9 183-192 (10 pages)
The present study was undertaken to evaluate porous hydroxyapatite (HAp), the powder of which was prepared by a novel aqueous solution combustion technique, as a bone substitute in healing bone defects in vivo, as assessed by radiologic and histopathologic methods, oxytetracycline labeling, and angiogenic features in Bengal goat. Bone defects were created in the diaphysis of the radius and either not filled (group I) or filled with a HAp strut (group II). The radiologic study in group II showed... -
Bupivacaine에 의해 억제된 심근수축력에 대한 대사기질의 영향
박승준(Seung-Joon Park), 정주호(Joo-Ho Chung), 정지창(Jee-Chang Jung), 고계창(Kye-Chang Ko) 대한약리학회 대한약리학잡지 8 Pages
대한약리학회 대한약리학잡지 1992, 제 28권 제 1호 5 41-48 (8 pages)
국소마취제인 bupivacaine의 심근억제작용에 관한 기전을 규명하기 위하여, bupivacaine에 의해 수축력이 감소된 흰쥐 적출심장에 대한 각종 대사기질의 영향을 관찰한 바 다음과 같은 결과를 얻었다. 1. Krebs-Ringer glucose medium에 현수한 적출심방의 수축력은 0.01% bupivacaine에 의해 약 50% 감소되었다. 2. Pyruvate, acetate 및 fructose는 bupivacaine 억제심방의 수축력을 증가시켰으나, 정상 Krebs-Ringer medium에서의 수축력에는 현저한 영향이 없었다. 3. Glucose는 bupivacaine 억제심방의 수축력에는 별 영향이... -
Proteomic Changes in the Sound Vibration-Treated Arabidopsis thaliana Facilitates Defense Response during Botrytis cinerea Infection
Ritesh Ghosh, Bosung Choi, Young Sang Kwon, Tufail Bashir, Dong-Won Bae, Hanhong Bae 한국식물병리학회 The Plant Pathology Journal 14 Pages
한국식물병리학회 The Plant Pathology Journal 2019, 35권 6호 7 609-622 (14 pages)
Sound vibration (SV) treatment can trigger various molecular and physiological changes in plants. Previously, we showed that pre-exposure of Arabidopsis plants to SV boosts its defense response against Botrytis cinerea fungus. The present study was aimed to investigate the changes in the proteome states in the SV-treated Arabidopsis during disease progression. Proteomics analysis identified several upregulated proteins in the SVinfected plants (i.e., SV-treated plants carrying Botrytis... -
Wheat Blast in Bangladesh: The Current Situation and Future Impacts
M. Tofazzal Islam, Kwang-Hyung Kim, Jaehyuk Choi 한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2019, 35권 1호 1 1-10 (10 pages)
Wheat blast occurred in Bangladesh for the first time in Asia in 2016. It is caused by a fungal pathogen, Magnaporthe oryzae Triticum (MoT) pathotype. In this review, we focused on the current status of the wheat blast in regard to host, pathogen, and environment. Despite the many efforts to control the disease, it expanded to neighboring regions including India, the world s second largest wheat producer. However, the disease occurrence has definitely decreased in quantity, because of many... -
Insights into Tan Spot and Stem Rust Resistance and Susceptibility by Studying the Pre-Green Revolution Global Collection of Wheat
한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2017, 33권 2호 4 125-132 (8 pages)
Tan spot (TS), caused by the fungus Pyrenophora tritici-repentis (Died) Drechs, is an important foliar disease of wheat and has become a threat to world wheat production since the 1970s. In this study a globally diverse pre-1940s collection of 247 wheat genotypes was evaluated against Ptr ToxA, P. tritici-repentis race 1, and stem rust to determine if; (i) acquisition of Ptr ToxA by the P. tritici-repentis from Stagonospora nodorum led to increased pathogen virulence or (ii) incorporation of TS... -
소리소화기가 질식소화에 미치는 영향에 대한 연구
김봉영, 이은영, 배명진 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 8 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2018, 제 8권 제 6호 71 765-772 (8 pages)
불은 인류에게 있어 매우 소중한 것이다. 그러나 통제하지 못하는 불은 화재라는 재앙으로써 매우 큰 피해를 준다. 화재 발생시 화재를 얼마나 빨리 진압하느냐에 따라 그 피해가 최소화될 수 있다. 화재의 피해를 최소화하기 위해 사용되는 소화기나 소화설비는 주로 질식소화방식이 적용된다. 화재를 빨리 진압하기 위해서는 소화기 및 소화설비의 소화효율을 높이는 노력이 필요하다. 소리소화기는 독자적인 사용 또는 다른 소화기와의 병행운용으로 소화효율을 높이는 대안이 될 수 있다. 소리소화기는 기존의 소화기와는 다른 원리가... -
다단계 전처리를 통한 음식물류 폐기물의 중온 2상 혐기소화 기술
이보원 한국열환경공학회 한국열환경공학회 학술대회지 18 Pages
한국열환경공학회 한국열환경공학회 학술대회지 2014년 춘계 9 81-98 (18 pages)
2012년말 기준 국내 음식물류 폐기물 발생량의 경우 1일 13,036.9톤 발생하고 있으 며, 1일 1인당 발생량은 0.2524kg로서 이는 전체 생활폐기물 48,989.8톤/일의 26,6%로 생활폐기물의 상당 부분을 차지하고 있다. -
PKS 및 EFB 반탄화물의 연소특성
Jeeban Poudel, 최병수, 김진우, 오세천 한국열환경공학회 한국열환경공학회 학술대회지 2 Pages
한국열환경공학회 한국열환경공학회 학술대회지 2015년 추계 59 415-416 (2 pages)
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2.1 MW 급 선박용 발전기의 수평형 워터 스크러버 적용에 관한 연구
최슬기, 최정황, 정진도 한국열환경공학회 열환경공학 8 Pages
한국열환경공학회 열환경공학 2020, 제 15권 2호 6 51-58 (8 pages)
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단일 버너 석탄 연소로에서 합성가스 재연소에 관한 연구
한국열환경공학회 열환경공학 2020, 제 15권 1호 5 47-55 (9 pages)
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전산유동해석을 이용한 가압 순산소 연소용 100 kWth급 석탄 버너의 설계 개념 개발
박종근, 양원, 채태영, 류창국 한국열환경공학회 열환경공학 9 Pages
한국열환경공학회 열환경공학 2019, 제 14권 2호 3 17-25 (9 pages)
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열중량분석법을 이용한 하수슬러지 탄화물의 연소 특성 평가
박소미, 임혁, 김철규 한국열환경공학회 열환경공학 9 Pages
한국열환경공학회 열환경공학 2015, 제 12권 2호 9 74-82 (9 pages)
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MBT를 이용한 생활폐기물의 감량화·연료화에 관한 연구
권혁영, 여인철, 김대중 한국열환경공학회 열환경공학 7 Pages
한국열환경공학회 열환경공학 2008, 제 5권 1호 4 31-37 (7 pages)
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A Kinetic Analysis of the Thermal Degradation of Pyrolytic Heavy Oils obtained from Kiln Pyrolysis Process
Kyong Hwan Lee, Woo-Teck Kwo, Sea Cheon Oh 한국열환경공학회 열환경공학 8 Pages
한국열환경공학회 열환경공학 2011, 제 8권 2호 1 1-8 (8 pages)
The kinetic analysis of the thermal degradation of pyrolytic heavy oils obtained from mixed waste plastics by kiln pyrolysis process has been studied by conventional thermogravimetric technique with various heating rates in nitrogen atmosphere. Results of kinetic analysis show that the activation energies are 24.4~26.5 kJ/mol and the reaction orders are 1.0~1.25, respectively. To verify the effectiveness of the kinetic analysis method used in this work, the experimental values were compared with... -
자동차 폐차잔재의 시멘트 제조 열원활용을 위한 하소로의 전산모사
한국열환경공학회 열환경공학 2012, 제 9권 2호 1 1-8 (8 pages)
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바이오매스 반탄화물의 연소특성
Poudel Jeeban, Rubee Koju Shrestha, 오세천 한국열환경공학회 열환경공학 9 Pages
한국열환경공학회 열환경공학 2014, 제 11권 1호 8 56-64 (9 pages)
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배려적 교육풍토와 교사 효능감
이전이, 김용한 한국교원교육학회 한국교원교육연구 20 Pages
한국교원교육학회 한국교원교육연구 2015, 제 32권 제 1호 15 395-414 (20 pages)
본 연구는 교사의 효능감이 배려적 교육풍토 정도에 따라 어떻게 다른지에 대한 탐색적 연 구로 수행되었다. 분석을 위해 2008년 OECD에서 실시한 Teaching and Learning International Survey(TALIS 2008) 자료 가운데 우리나라 127개 중학교에 소속된 2,049명의 교사의 응답을 활용하였다. 주 독립변인인 배려적 교육풍토만을 투입한 분석모형 1의 분석결과, 배려적 교육 풍토 정도와 교사 효능감이 유의하게 정적인 상관을 보이는 것으로 나타났다. 본 연구의 최종 모형인 분석모형 2에서는 학생의 수업 방해 행동을 비롯한 교사 수준... -
A Critical Analysis of Standards-Based U.S. Middle School Textbook in Terms of Energy Concept
박도영 에너지기후변화교육학회 에너지기후변화교육 19 Pages
에너지기후변화교육학회 에너지기후변화교육 2012, 제 2권 제 2호 9 199-217 (19 pages)
The U.S. science education went through reforms in 1990s and resulted in producing the National Science Education Standards (NSES). A middle school science curriculum, Investigating Earth Systems was newly developed based on the standards. The purpose of this study was to examine how congruent the standards-based science textbook is with the visions of the standards and what characteristics it has. Two instruments were used in analysis: Textbook Questioning Style Assessment Instrument (TQSAI)... -
Renewable Energy Education: An Example of Implementation
Park DoYong, Jo Jin 에너지기후변화교육학회 에너지기후변화교육 17 Pages
에너지기후변화교육학회 에너지기후변화교육 2011, 제 1권 제 1호 10 89-105 (17 pages)
First, given the limited energy resources worldwide, the world is concerned about the depletion of fossil fuels and makes an orchestrated effort to discover alternative energy resources across countries. Thus, with the relevant review of literature, the paper stressed the importance of energy education in K-12. Second, with a lack of appropriate energy education curriculums and activities for renewable energy education, this paper introduced an instruction of wind energy, as an example, based on... -
A Choice of Nightmares: The Fisher King and the Horror in Heart of Darkness and Apocalypse Now
Youngkul Kim 이화여자대학교 교과교육연구소 Eastwest Education 46 Pages
이화여자대학교 교과교육연구소 Eastwest Education 2006, Vol.23 2 13-58 (46 pages)
This study investigates Joseph Conrad's Heart of Darkness and its film adaptation, Francis Ford Coppola’s Apocalypse Now, by examining the character of the Fisher King, a common figure at the beginning of human society who was later incorporated into romance literature, especially in the quest for the Holy Grail in the Arthurian legend. A superior warrior of godlike proportions, he leads his people to health and prosperity; as Fisher King, however, he becomes sick, and that sickness is... -
How Ideas Shape Innovation and Reshape Education
Lynn Ilon 한국교육학회 한국교육학회 학술대회논문집 16 Pages
한국교육학회 한국교육학회 학술대회논문집 KERA Inter 31 295-310 (16 pages)
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로버트 올리버 : 문화 간 커뮤니케이션의 선각자
한국광고PR실학회 광고PR실학연구 2011, 제 4권 1호 2 36-48 (13 pages)
로버트 올리버(Robert T. Oliver)는 수사학과 커뮤니케이션 분야의 선각자이자, 문화 간 커뮤니케이션에서 아시아 중 심적 접근법을 사용한 선구자였으며, 1940∼1950년대 초창기 대한민국의 발전에 영향을 미친 중요한 인물이다. 이 논문에서는 올리버 교수가 문화 간 커뮤니케이션 연구에 기여한 네 가지 영향을 중점적으로 살펴보았다. 즉, 수사학 및 커뮤니케이션 연구에서 유럽 중심적 편향에 대한 비판, 수사학 및 커뮤니케이션 연구에서 아시아 중심적 대안의 제시, 수사학 및 커뮤니케이션 연구에 있어서 문화 간 전망의 활성화,... -
국제이해교육 관점에서 본 외국어 교육 문제
천세영 한국국제이해교육학회 국제이해교육연구 19 Pages
한국국제이해교육학회 국제이해교육연구 2008, 제 3권 2호 3 79-97 (19 pages)
언어교육 문제는 국제이해교육의 관점에서 접근할 필요가 있다. 세계화가 현상적 실제로 진행되고 있는 상황에서 서로 다른 언어로 의사소통해야하는 것은 당위적 현실이기도 하다. 한국의 새 정부가 제기한 영어교육 문제는 세계어의 습득, 국제이해교육, 그리고 교육의 관점에서 재해석될 필요가 있다. 한국에서 영어교육과 관련해서 가장 심각한 장애는 영어를 통해 전달된다고 믿는 외세에 대한 두려움증이다. 그러나 교육의 본질에 자유가 내재되어 있다는 본 논문의 가정을 전제로 할 때, 교육은 인종, 종교, 문화 등 그 어떤... -
Synthesis and physicochemical characterization of NixZnx- FeO₂O₄/MWCNT nanostructures as enzyme mimetics with peroxidase-like catalytic activity
Navvabeh Salarizadeh, Minoo Sadri, Hassan Hosseini, Reza. H. Sajedi 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2017, Vol.24 14 103-110 (8 pages)
Carbon-based magnetic nanostructures in several instances have resulted in improved physicochemical and catalytic properties when compared to multi-wall carbon nanotubes (MWCNTs) and magnetic nanoparticles. In this study, magnetic MWCNTs with a structure of NixZnxFe2O4/MWCNT as peroxidase mimics were fabricated by the one-pot hydrothermal method. The structure, composition and morphology of the nanocomposites were characterized with X-ray diffraction (XRD), Fourier transform infrared... -
Physicochemical properties and methane adsorption performance of activated carbon nanofibers with different types of metal oxides
Faten Ermala Che Othman, Norhaniza Yusof, Hasrinah Hasbullah, Juhana Jaafar, Ahmad Fauzi Ismail, Noor Shawal Nasri 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2017, Vol.24 11 82-89 (8 pages)
In this study, composite PAN-based ACNFs embedded with MgO and MnO2 were prepared by the electrospinning method. The resultant pristine ACNFs, ACNF/MgO and ACNF/MnO2 were characterized in terms of their morphological changes, SSA, crystallinity and functional group with FESEM-EDX, the BET method, XRD and FTIR analysis, respectively. Results from this study showed that the SSA of the ACNF/MgO composite (1893 m2 g?1) is significantly higher than that of the pristine ACNFs and ACNF/MnO2 which is... -
Relationships between dielectric properties and characteristics of impregnated and activated samples of potassium carbonate- and sodium hydroxide-modified palm kernel shell for microwave-assisted activation
Norulaina Alias, Muhammad Abbas Ahmad Zaini, Mohd Johari Kamaruddin 한국탄소학회 Carbon Letters 11 Pages
한국탄소학회 Carbon Letters 2017, Vol.24 9 62-72 (11 pages)
The aim of this work was to evaluate the dielectric properties of impregnated and activated palm kernel shells (PKSs) samples using two activating agents, potassium carbonate (K2CO3) and sodium hydroxide (NaOH), at three impregnation ratios. The materials were characterized by moisture content, carbon content, ash content, thermal profile and functional groups. The dielectric properties were examined using an open-ended coaxial probe method at various microwave frequencies (1?6 GHz) and... -
Synthesize multi-walled carbon nanotubes via catalytic chemical vapour deposition method on Fe-Ni bimetallic catalyst supported on kaolin
Aliyu A, Abdulkareem AS, Kovo AS, Abubakre OK, Tijani JO, Kariim I 한국탄소학회 Carbon Letters 18 Pages
한국탄소학회 Carbon Letters 2017, Vol.21 5 33-50 (18 pages)
In this study, Fe-Ni bimetallic catalyst supported on kaolin is prepared by a wet impregnation method. The effects of mass of kaolin support, pre-calcination time, pre-calcination temperature and stirring speed on catalyst yields are examined. Then, the optimal supported Fe-Ni catalyst is utilised to produce multi-walled carbon nanotubes (MWCNTs) using catalytic chemical vapour deposition (CCVD) method. The catalysts and MWCNTs prepared using the optimal conditions are characterized using high... -
Biologically activated graphite fiber electrode for autotrophic acetate production from CO2 in a bioelectrochemical system
Chae Ho Im, Young Eun Song, Byong-Hun Jeon, Jung Rae Kim 한국탄소학회 Carbon Letters 5 Pages
한국탄소학회 Carbon Letters 2016, Vol.20 12 76-80 (5 pages)
Recently, microbial electrosynthesis (MESs) has been highlighted for the purpose of biological CO2 reduction with simultaneous production of intermediates and value-added chemicals. The bioelectrochemical system (BES), which employs microorganisms and a bacterial community as a biocatalyst, has been developed to convert CO2, a greenhouse gas, into liquid biofuels, such as ethanol and butanol, as well as platform chemicals [1]. Several bacterial species, called cathodophilic microorganisms (e.g.,... -
Nanoporous carbon synthesized from grass for removal and recovery of hexavalent chromium
Shahin A. Pathan, Nancy S. Pandita 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2016, Vol.20 2 10-18 (9 pages)
Nanoporous carbon structures were synthesized by pyrolysis of grass as carbon precursor. The synthesized carbon has high surface area and pore volume. The carbon products were acid functionalized and characterized by Fourier transform infrared spectroscopy, X-ray diffraction, Brunauer?Emmett?Teller, transmission electron microscopy, and Energy Dispersive X-ray microanalysis. Acid functionalized nanoporous carbon was explored for use in removal of toxic Cr(VI) ions from aqueous media. An... -
Thermoelectric properties of carbonaceous solids
Francesco Miccio 한국탄소학회 Carbon Letters 5 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 14 107-111 (5 pages)
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Adsorptive removal of atmospheric pollutants over Pyropia tenera chars
Heejin Lee, Rae-su Park, Hyung Won Lee, Yeojin Hong, Yejin Lee, Sung Hoon Park, Sang-Chul Jung, Kyung-Seun Yoo, Jong-Ki Jeon, Young-Kwon 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 10 79-88 (10 pages)
As a replacement for activated carbon, biochar was synthesized and used for the adsorptive removal of formaldehyde and nitrogen oxide. Biochar was produced from the fast pyrolysis of the red marine macro alga, Pyropia tenera. The P. tenera char was then activated with steam, ammonia and KOH to alter its characteristics. The adsorption of formaldehyde, which is one of the main indoor air pollutants, onto the seaweed char was performed using 1-ppm formaldehyde and the char was activated using a... -
Study on urea precursor effect on the electroactivities of nitrogen-doped graphene nanosheets electrodes for lithium cells
Ki-Yong Kim, Yongju Jung, Seok Kim 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 5 40-46 (7 pages)
Nitrogen-atom doped graphene oxide was considered to prevent the dissolution of polysulfide and to guarantee the enhanced redox reaction of sulfur for good cycle performance of lithium sulfur cells. In this study, we used urea as a nitrogen source due to its low cost and easy preparation. To find the optimum urea content, we tested three different ratios of urea to graphene oxide. The morphology of the composites was examined by field emission scanning electron microscope. Functional groups and...
