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본문검색 결과만 보기
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Carbon-allotropes: synthesis methods, applications and future perspectives
P. S. Karthik, A. L. Himaja and Surya Prakash Singh 한국탄소학회 Carbon Letters 19 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.4 1 219-237 (19 pages)
The element carbon has been used as a source of energy for the past few hundred years, and now in this era of technology, carbon has played a significant and very prominent role in almost all fields of science and technology. So as an honour to this marvellous element, we humans should know about its various forms of existence. In this review article, we shed light on all possible carbon-allotropes; similarities in their synthesis techniques and the starting materials; their wide range of... -
Microwave heating of carbon-based solid materials
Teawon Kim, Jaegeun Lee, Kun Hong Lee 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.1 2 15-24 (10 pages)
As a part of the electromagnetic spectrum, microwaves heat materials fast and efficiently via direct energy transfer, while conventional heating methods rely on conduction and convection. To date, the use of microwave heating in the research of carbon-based materials has been mainly limited to liquid solutions. However, more rapid and efficient heating is possible in electron-rich solid materials, because the target materials absorb the energy of microwaves effectively and exclusively.... -
제주도 곶자왈 상록활엽수 종가시나무의 생물량 추정을 위한 상대생장식
정헌모, 김해란, 조규태, 이승혁, 한영섭, 유영한 한국습지학회 한국습지학회지 6 Pages
한국습지학회 한국습지학회지 2014, Vol.16 No.2 9 245-250 (6 pages)
This study developed allometry equation and estimated the aboveground-biomass of Quercus glauca, a warm-temperature, evergreen broad-leaved tree, growing in Kotzawal wetland located on Jeju Island. The allometric equations between DBH(diameter at breast height) and dry weights of stems (Ws), branches (Wb), leaves (Wl) and aboveground biomass (Wab) of Q. glauca were as follows: logWs=2.4042logDBH-1.3045, logWb=2.6436logDBH-1.6232, logWl =1.5428logDBH-1.3692 and logWab=2.3324logDBH-0.9181. The... -
2014-2017학년도 중등생물임용시험의 생명과학 내용영역 분석: 핵심개념, 탐구기능, 문제해결방법과 답안서술구조를 중심으로
여성희, 박민영, 안지혜 이화여자대학교 교과교육연구소 교과교육학연구 15 Pages
이화여자대학교 교과교육연구소 교과교육학연구 2017, 제 21권 4호 8 383-397 (15 pages)
본 연구는 예비교사들이 중등생물임용시험을 효율적으로 준비할 수 있는 기초자료를 제공하기 위하여 2014학년도부 터 2017학년도까지 출제된 생명과학 내용학 문제를 대상으로 주요 영역과 핵심개념, 탐구기능, 문제해결방법, 그리고 요구되 는 답안서술구조를 분석하였다. 본 연구 결과는 다음과 같다. 첫째, 중등생물임용시험은 생명과학 각 영역별로 골고루 출제되 었으나 동물생리학이 14건(18.7%), 분자생물학이 11건(14.7%)으로 두 영역의 출제 빈도가 다소 높게 나타났다. 특히 분자생물 학 실험방법이 8건(10.7%)으로 높게... -
Characteristics of Pre-service English Teachers’ Micro-teaching Feedback and its Relations with their Self-efficacy and Perceptions
Hyunjeong Nam 경인교육대학교 교육연구원 교육논총 23 Pages
경인교육대학교 교육연구원 교육논총 2020, 제 40권 제 3호 8 157-179 (23 pages)
As the importance of micro-teaching and feedback is acknowledged in previous research, the present study aims to explore the features of self and peer-feedback in three dimensions (direct-indirect, corrective-suggestive, and emotional–factual). In addition, the paper investigates whether pre-service teachers’ self-efficacy and perceptions affect the features of their feedback. A total of 45 pre-service English teachers at a university participated in the study. The study utilized two... -
수간곡선 모델을 이용한 소나무의 지방별 수간재적표 개발
강진택, 손영모, 김소원, 이선정, 박현, Kang. Jin-Taek, Son. Yeong-Mo, Kim. So-Won, Lee. Sun-Jeoung, Park. Hyun 한국농림기상학회 한국농림기상학회지 9 Pages
한국농림기상학회 한국농림기상학회지 2014, Vol.16 No.4 327-335 (9 pages)
현재 사용하고 있는 임목 재적표는 전국 공용으로 제작되어 있기 때문에, 특정 지역에 적용할 경우 재적을 과소 또는 과대 추정하는 문제점을 가지고 있다. 따라서, 본 연구는 이러한 문제점을 해결하기 위하여 수간곡선식을 이용하여 지역의 재적생장을 잘 반영할 수 있도록 홍천과 영주지역의 지방별 임목 수간재적표를 개발하고자 수행하였으며, 우리나라에서 가장 많은 분포를 보이고 있는 소나무를 대상으로 개발하였다. 추정에 적합한 수간곡선식의 도출을 위해서 Max & Burkhart, Korzak 그리고 Parresol et al.의 세 가지... -
Multi-voxel magnetic resonance spectroscopy of cerebral metabolites in healthy dogs at 1.5 Tesla
Sooyoung Choi, Yumi Song, Kija Lee, Youngwon Lee, Hojung Choi 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2016, 제 17권 제 2호 11 217-224 (8 pages)
This study was conducted to measure the difference in levels of cerebral metabolites in the right and left hemispheres, gray (GM) and white matter (WM), imaging planes, and anatomical regions of healthy dogs to establish normal variations. Eight male Beagle dogs (1 to 4 years of age; mean age, 2 years) with no evidence of neurologic disease were studied. Using the multi-voxel technique on a 1.5 Tesla magnetic resonance imaging scanner, metabolite values (N-acetyl aspartate [NAA], choline [Cho],... -
Cloning and characterization of a selenium-independent glutathione peroxidase (HC29) from adult Haemonchus contortus
Wei Sun, Xiaokai Song, Ruofeng Yan, Lixin Xu, Xiangrui Li* 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 1호 8 49-58 (10 pages)
The complete coding sequence of Haemonchus (H.) contortus HC29 cDNA was generated by rapid amplification of cDNA ends in combination with PCR using primers targeting the 5´- and 3´-ends of the partial mRNA sequence. The cloned HC29 cDNA was shown to be 1,113 bp in size with an open reading frame of 507 bp, encoding a protein of 168 amino acid with a calculated molecular mass of 18.9 kDa. Amino acid sequence analysis revealed that the cloned HC29 cDNA contained the conserved catalytic triad and... -
Peripheral serotoninergic response to physical exercise in athletic horses
Daniela Alberghina*, Claudia Giannetto, Giuseppe Piccione 대한수의학회 Journal of Veterinary Science 5 Pages
대한수의학회 Journal of Veterinary Science 2010, 제 11권 제 4호 2 285-289 (5 pages)
The purpose of this study was to evaluate the influence of exercise on plasma tryptophan (TRP) and free serotonin (f5-HT), whole blood-5-HT (WB-5-HT) and f5-HT/WB-5-HT ratio in Italian Saddle horses. Six clinically healthy Italian Saddle horses were subjected to a 450 meters obstacles course. Blood samples were collected from each horse by jugular venipuncture using vacutainer tubes with K3-EDTA at rest, immediately after exercise, and after 30 min. TRP, f5-HT and WB-5-HT were analyzed by HPLC....
