자료유형
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- 한국소성가공학회(22)
- 한국탄소학회(19)
- 한국주조공학회(17)
- 한국정밀공학회(13)
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- 한국전자파학회(2)
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- 한국열환경공학회(1)
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간행물
- 소성가공(22)
- CARBON LETTERS(19)
- 한국주조공학회지(17)
- 한국정밀공학회지(10)
- JOURNAL OF VETERINARY SCIENCE(7)
- 약제학회지(5)
- ASIA-PACIFIC JOURNAL OF RESEARCH IN EARLY CHILDHOOD EDUCATION(4)
- THE PLANT PATHOLOGY JOURNAL (4)
- 대한기계학회론문집. TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS. A. A(4)
- INTERNATIONAL JOURNAL OF THE KOREAN SOCIETY OF PRECISION ENGINEERING(3)
- 열처리공학회지(3)
- 한국식품과학회지(3)
- 대한기계학회논문집(2)
- 대한생리학회지(2)
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- 한국재료학회지(2)
- 한국전자파학회논문지(2)
- ENVIRONMENTAL ENGINEERING RESEARCH(1)
- INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY(1)
- JOURNAL OF DENTAL IMPLANT RESEARCH(1)
- KOREAN JOURNAL OF VETERINARY RESEARCH(구 대한수의학회지)(1)
- KSBB JOURNAL(1)
- THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY(1)
- 교과교육학연구(1)
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- 한국영양식량학회지(1)
- 한국전자현미경학회지(1)
전체 선택해제
총 128건 검색
본문검색 결과만 보기
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Computer Simulation for Die Filling Behavior of Semi-Solid Slurry of Mg Alloy
Lee. Dock-Young, Moon. Jung-Hwa, Seok. Hyun-Kwang, Kim. Sung-Bin, Kim. Ki-Bae 한국주조공학회 한국주조공학회지 5 Pages
한국주조공학회 한국주조공학회지 2007, Vol.27 No.1 31-35 (5 pages)
본 연구에서는 Mg합금의 반응고성형 공정기술을 개발하기 위하여 여러 가지 전단속도와 냉각속도에 따른 Mg합금의 점도와 딕소트러픽 거동을 분석하였으며, 이를 전산모사연구와 비교 검토하였다. 전산모사연구에서는 미세조직과 공정변수를 고려한 반응고 슬러리의 유변학적 거동을 분석하였다. 반응고 온도영역에서의 Mg합금(AZ91D) 슬러리의 점도는 고상율에 따라 지수함수적으로 증가하였으며, 전단속도가 증가하면 감소하는 경향을 나타났다. Mg합금 슬러리의 유변학적 거동을 정확하게 분석하기 위하여 Carreau 모델을 사용하여... -
Semi-Solid Process 법으로 제조된 Al-Si-Mg 주조재의 피로특성
김석원, 이의종, 한상원, Kim. Sug-Won, Lee. Ui-Jong, Han. Sang-Won 한국주조공학회 한국주조공학회지 6 Pages
한국주조공학회 한국주조공학회지 2003, Vol.23 No.2 94-99 (6 pages)
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Optimal Reheating Condition of Semi-solid Material in Semi-solid Forging by Neural Network
Park. Jae-Chan, Kim. Young-Ho, Park. Joon-Hong 한국정밀공학회 International journal of the Korean society of precision engineering 8 Pages
한국정밀공학회 International journal of the Korean society of precision engineering 2003, Vol.4 No.2 49-56 (8 pages)
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Yield and Compression Behavior of Semi-Solid Material by Upper-Bound Method
Park. Joon-Hong, Kim. Chul, Kim. Byung-Min, Park. Jae-Chan 한국정밀공학회 International journal of the Korean society of precision engineering 7 Pages
한국정밀공학회 International journal of the Korean society of precision engineering 2001, Vol.2 No.4 23-29 (7 pages)
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Comparison of Solid Waste Stabilization and Methane Emission from Anaerobic and Semi-Aerobic Landfills Operated in Tropical Condition
Sutthasil. Noppharit, Chiemchaisri. Chart, Chiemchaisri. Wilai, Wangyao. Komsilp, Towprayoon. Sirintornthep, Endo. Kazuto, Yamada. Mas 대한환경공학회 Environmental engineering research 8 Pages
대한환경공학회 Environmental engineering research 2014, Vol.19 No.3 261-268 (8 pages)
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Applications of carbon-based materials in solid phase micro-extraction: a review
Jian Guo, Soo-Jin Park, Long-Yue Meng, Xinghua Jin 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2017, Vol.24 2 10-17 (8 pages)
With continuous development in the field of sample preparation technology, solid phase micro-extraction (SPME) has been widely used in analytical chemistry for high extraction efficiency and convenient operation. Different materials lead to different extraction results. Among existing materials, carbon-based materials are still attracting attention from scientists due to their excellent physical and chemical properties as well as their modifiable surfaces, which could enhance the adsorption... -
Distribution, quantitative load and characterization of Salmonella associated with swine farms in upper-northern Thailand
Pakpoom Tadee, Kittipong Kumpapong, Danai Sinthuya, Panuwat Yamsakul, Nipa Chokesajjawatee, Supachai Nuanualsuwan, Suchawan Porn 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 2호 20 327-334 (8 pages)
This study was conducted to analyze the prevalence and quantitative loads of Salmonella spp. on pig farms in Chiang Mai, Lamphun, Thailand to assess loading levels before slaughtering. The serotype diversity, antimicrobial-resistance pattern and pulse-field type of Salmonella spp. were also characterized to assess the dynamic propagation of the pathogen. The Salmonella-positive prevalence was 246/805 (30.56%), and the quantitative loads varied from 1.48∼4.04 Log10MPN/g, with a mean ± standard... -
Evaluation of PCR inhibitory effect of enrichment broths and comparison of DNA extraction methods for detection of Salmonella Enteritidis using real-time PCR assay
Ji-Yeon Hyeon, In-Gyun Hwang, Hyo-Sun Kwak, Chankyu Park, In-Soo Choi, Kun-Ho Seo 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2010, 제 11권 제 2호 8 143-149 (7 pages)
The best enrichment broth and DNA extraction scheme was determined for rapid and sensitive detection of Salmonella Enteritidis in steamed pork using real-time PCR. The inhibitory effect of commonly used Salmonella enrichment broths, Rappaport-Vassiliadis (RV) and Muller-Kauffmann tetrathionate with novobiocin (MKTTn), on real-time PCR was confirmed. The inhibition of PCR was statistically significant (p ＜ 0.05) in RV and MKTTn, as compared with buffered peptone water (BPW) or phosphate-buffered... -
The study of osteoinductive effect as the variant rhBMP-2 application in the dorsal subcutaneous tissue of white rat
Yoon- Seon Keum, Hyo-Jeong Son, Seung- Cheol Woo, Jang-Yeol Lee, Hyoun-Chull Kim, Sang-Chull Lee, Jingo Kusukawa 대한치과이식임플란트학회 Journal of Dental Implant Research 7 Pages
대한치과이식임플란트학회 Journal of Dental Implant Research 2010, 제 29권 1호 7 47-53 (7 pages)
The study of the osteoinductive effect during the implantation in the bone defect area has been carried out, also the bone morphogenetic protein(BMP) has been taken notice of osteoinduction material. Urist (1965) was the first to report the presence of bone morphogenetic protein (BMP) that was detected by transplantation of decalcified bone matrix into an intramuscular site, where it induced ectopic ossification. The term “bone morphogenetic protein”(BMP) was introduced to describe the... -
수렴성빔 전자회절법을 이용한 리오캐스팅시킨 과공정 Al-Si합금에서 실리콘초정의 격자상수 측정
이정일, 김긍호, 이호인, Lee. Jung-Ill, Kim. Gyeung-Ho, Lee. Ho-In 한국현미경학회 한국전자현미경학회지 9 Pages
한국현미경학회 한국전자현미경학회지 1995, Vol.25 No.3 99-107 (9 pages)
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냉각판으로 제조된 Al-Zn-Mg-Cu계 반응고 알루미늄 합금의 RRA 처리
김대환, 심성용, 김영화, 임수근, Kim. Dae-Hwan, Shim. Sung-Yong, Kim. Young-Hwa, Lim. Su-Gun 한국주조공학회 한국주조공학회지 5 Pages
한국주조공학회 한국주조공학회지 2009, Vol.29 No.6 265-269 (5 pages)
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경사냉각판을 이용한 Al-Zn-Mg-(Sc) 반응고 합금 제조의 최적화 및 재가열 특성
김태훈, 심성용, 박형원, 임수근, Kim. Tae-Hun, Shim. Sung-Yong, Park. Hyung-Won, Lim. Su-Gun 한국주조공학회 한국주조공학회지 7 Pages
한국주조공학회 한국주조공학회지 2009, Vol.29 No.5 213-219 (7 pages)
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용탕압출법에 의한 Al-Cu 합금 선재의 제조에 관한 연구
주대헌, 이병수, 김명호, Joo. Dae-Heon, Lee. Byoung-Soo, Kim. Myung-Ho 한국주조공학회 한국주조공학회지 9 Pages
한국주조공학회 한국주조공학회지 2004, Vol.24 No.6 331-339 (9 pages)
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저온 주조법을 응용한 Al-Zn-Mg-Cu 합금의 반응고 성형
김정민, 김기태, 정운재, Kim. Jeong-Min, Kim. Ki-Tae, Jung. Woon-Jae 한국주조공학회 한국주조공학회지 7 Pages
한국주조공학회 한국주조공학회지 2002, Vol.22 No.2 82-88 (7 pages)
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Mg-5%Al합금의 등온가열에 따른 미세조직변화 및 반응고 성형성
김정민, 황보현석, 김기태, 정운재, Kim. Jeong-Min, HwangBo. Hyun-Seok, Kim. Ki-Tae, Jung. Woon-Jae 한국주조공학회 한국주조공학회지 7 Pages
한국주조공학회 한국주조공학회지 2001, Vol.21 No.4 246-252 (7 pages)
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Al-Zn-Mg 반용융 압출재의 용체화처리
김대환, 김희경, 엄정필, 임수근, Kim. Dae-Hwan, Kim. Hee-Kyung, Eom. Jeong-Pil, Lim. Su-Gun 한국열처리공학회 열처리공학회지 8 Pages
한국열처리공학회 열처리공학회지 2013, Vol.26 No.4 165-172 (8 pages)
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Positive effects of porcine IL-2 and IL-4 on virus-specific immune responses induced by the porcine reproductive and respiratory syndrome virus (PRRSV) ORF5 DNA vaccine in swine
Deyuan Tang*, Jian Liu, Chunyan Li, Hua Zhang, Ping Ma, Xianfeng Luo, Zhiyong Zeng, Nining Hong, Xia Liu, Bin Wang, Feng Wang, Z 대한수의학회 Journal of Veterinary Science 11 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 1호 11 99-109 (11 pages)
The purpose of this study was to investigate the effects of porcine interleukin (IL)-2 and IL-4 genes on enhancing the immunogenicity of a porcine reproductive and respiratory syndrome virus ORF5 DNA vaccine in piglets. Eukaryotic expression plasmids pcDNA-ORF5, pcDNA-IL-2, and pcDNA-IL-4 were constructed and then expressed in Marc-145 cells. The effects of these genes were detected using an indirect immunofluorescent assay and reverse transcription polymerase chain reaction (RT-PCR).... -
Original Article : NAD(P)H-quinone oxidoreductase-1 silencing modulates cytoprotection related protein expression in cisplatin cytotoxicity
Se Ra Park , Ju Young Jung , Young-jung Kim , Da Young Jung , Mee Young Lee , Si Yun Ryu 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 7 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2016, 제 56권 제 1호 3 15-21 (7 pages)
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The effect of progesterone and 17-β estradiol on membrane-bound HLA-G in adipose derived stem cells
AkramMoslehi, BatoolHashemi-beni, AzamMoslehi, MaryamAliAkbari, MinooAdib 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.4 3 341-346 (6 pages)
Membrane-bound HLA-G (mHLA-G) discovery on adipose derived stem cells (ADSCs) as a tolerogenic and immunosuppressive molecule was very important. Many documents have shown that HLA-G expression can be controlled via some hormones such as progesterone (P4) and estradiol (E2). Therefore, this study was designed to evaluate progesterone and estradiol effects on mHLA-G in ADSCs at restricted and combination concentrations. Three independent cell lines were cultured in complete free phenol red DMEM... -
Seed-born Burkholderia glumae Infects Rice Seedling and Maintains Bacterial Population during Vegetative and Reproductive Growth Stage
Luz Adriana Pedraza, Jessica Bautista, Daniel Uribe-Vé, lez 한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2018, 34권 5호 5 393-402 (10 pages)
Rice world production is affected due to the growing impact of diseases such as bacterial panicle blight, produced by Burkholderia glumae. The pathogen-induced symptoms include seedling rot, grain rot and leafsheath browning in rice plants. It is currently recognized the entrance of this pathogen to the plant, from infected seeds and from environmental sources of the microorganism. However, it is still not fully elucidated the dynamics and permanence of the pathogen in the plant, from its entry... -
What Does an Engaged Preschool Classroom Look Like? Teachers’ Conceptions of Student Engagement- Voices from Malaysia
Armeetaa Kaur Mallanhanse, Amrita Kaur, Rosna Awang Hashim, Mohammad Noman 환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 24 Pages
환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 2023, Vol.17 No.1 4 67-90 (24 pages)
School engagement is at the heart of academic success both for teachers and students at all levels of education. Conceptualizing and examining preschool students' engagement is a complex task, as the engagement of preschool students may vary based on the school and cultural context. Using an exploratory qualitative research design, the current study investigates the conception of preschool students’ engagement in the Malaysian context. Seven preschool teachers with significant teaching... -
Thematic-Integrative Learning with the Beyond Centers and Circle Time Approach at Tunas Harapan Preschool, Salatiga, Central Java
Zulkipli Lessy, Amin Sabi’ati 환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 21 Pages
환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 2018, Vol.12 No.1 3 39-59 (21 pages)
This study is aimed at uncovering the development of children’s attitudes at Tunas Harapan preschool in Salatiga, Central Java, through thematic-integrative learning with the Beyond Centers and Circle Time (BCCT) approach which was shown to be effective learning model for improving children’s physical, emotional, and academic performances. Involving teachers and parents, the model stimulates the rise of creativity and accommodates individual differences so that all children can experience... -
The Effects of Picture-Book Shared Reading Training for Immigrant Mothers of Young An Exploratory Study
Seonju Ko, Song-Eun Lee 환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 18 Pages
환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 2013, Vol.7 No.2 3 29-46 (18 pages)
This study examined the effects of picture book shared reading training for marriage-immigrant Korean mothers of young children with poor to moderate levels of Korean language skill. The training course offered opportunities for mothers to learn to read Korean picture storybooks and to share these with their children. The course instructor conducted interviews with the mothers, both before the course started and at its end. Observations were made in the Philippine Center in Seongbuk-Gu, Seoul,... -
Biocomposite membranes based on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and multiwall carbon nanotubes for gas separation
Mongyoung Huh, Hye Min Lee, Young Soo Park, Seok Il Yun 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2017, Vol.21 17 116-121 (6 pages)
The development of gas separation membranes is currently an active research area because of the rapidly increasing interest in carbon dioxide capture and hydrogen recovery, which are two of the most important solutions for problems related to energy and the environment [1-4]. Polymer membranes show selectivity in the separation of gases due to differences in the permeability of individual gases through the polymer film [3,4]. Even though advantageous in terms of low cost, the segmental... -
Advances in liquid crystalline nano-carbon materials: preparation of nano-carbon based lyotropic liquid crystal and their fabrication of nano-carbon fibers with liquid crystalline spinning
Yong-Mun Choi, in Jung Jun Yeon, Hwang Seung Min, Kim Hyeonsu Jeong, Bon-Cheol Ku, Munju Goh 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.4 1 223-232 (10 pages)
This review presents current progress in the preparation methods of liquid crystalline nanocarbon materials and the liquid crystalline spinning method for producing nano-carbon fibers. In particular, we focus on the fabrication of liquid crystalline carbon nanotubes by spinning from superacids, and the continuous production of macroscopic fiber from liquid crystalline graphene oxide. -
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... -
Double-walled carbon nanotubes: synthesis, structural characterization, and application
Yoong Ahm Kim, Kap-Seung Yang, Hiroyuki Muramatsu, Takuya Hayashi, Morinobu Endo, Mauricio Terrones, Mildred S. Dresselhaus 한국탄소학회 Carbon Letters 12 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.2 4 77-88 (12 pages)
Double walled carbon nanotubes (DWCNTs) are considered an ideal model for studying the coupling interactions between different concentric shells in multi-walled CNTs. Due to their intrinsic coaxial structures they are mechanically, thermally, and structurally more stable than single walled CNTs. Geometrically, owing to the buffer-like function of the outer tubes in DWCNTs, the inner tubes exhibit exciting transport and optical properties that lend them promise in the fabrication of field-effect... -
Effect of Two-step Surface Modification of ACtivated CARbon on the Adsorption Characteristics of Metak Ions in Wastewater I.Equilibrium and Batch Adsorptions
Geun Il Park, Jae Kwang Lee, Seung Kon Ryu, Joon Hyung Kim 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2002, Vol.3 No.4 6 219-225 (7 pages)
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Effects of the ASR-embedded Dictionary App Use on College Students in EFL Pronunciation Class
Hyun Il-sun 이화여자대학교 교과교육연구소 교과교육학연구 14 Pages
이화여자대학교 교과교육연구소 교과교육학연구 2018, 제 22권 6호 4 400-413 (14 pages)
This study explored the effects of the use of ASR-embedded dictionary app in providing corrective feedback on EFL college students pronunciation. During the six-week instruction, students of the ARS-based feedback group (n = 20) practiced their English pronunciation via the ARS-embedded dictionary app and those of the Peer-feedback group (n = 20) worked in pairs. Comparisons were made between pre- and post-test scores and the students responses to a follow-up questionnaire were analyzed by... -
Use of hydrophilic extra-viral domain of canine distemper virus H protein for enzyme-linked immunosorbent assay development
Ki-hyun Cho, Jeongmi Kim, Hyun-ah Yoo, Dae-hee Kim, Seung-yong Park, Chang-seon Song, In-soo Choi, Joong-bok Lee, 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 4호 6 503-509 (7 pages)
Simple methods for measuring the levels of serum antibody against canine distemper virus (CDV) would assist in the effective vaccination of dogs. To develop an enzyme-linked immunosorbent assay (ELISA) specific for CDV, we expressed hydrophilic extra-viral domain (HEVD) protein of the A75/17-CDV H gene in a pET 28a plasmid-based Escherichia (E.) coli vector system. Expression was confirmed by dot and Western blotting. We proposed that detection of E. coli-expressed H protein might be... -
An overview of calf diarrhea - infectious etiology, diagnosis, and intervention
Yong-il Cho, Kyoung-Jin Yoon* 대한수의학회 Journal of Veterinary Science 17 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 1호 1 1-17 (17 pages)
Calf diarrhea is a commonly reported disease in young animals, and still a major cause of productivity and economic loss to cattle producers worldwide. In the report of the 2007 National Animal Health Monitoring System for U.S. dairy, half of the deaths among unweaned calves was attributed to diarrhea. Multiple pathogens are known or postulated to cause or contribute to calf diarrhea development. Other factors including both the environment and management practices influence disease severity or... -
Molecular characterization of the feline T-cell receptor γ alternate reading frame protein (TARP) ortholog
Alexander Th. A. Weiss*, Marie-Charlotte von Deetzen, Werner Hecht, Manfred Reinacher, Achim D. Gruber 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 4호 3 345-353 (9 pages)
T-cell receptor γ alternate reading frame protein (TARP) is expressed by human prostate epithelial, prostate cancer, and mammary cancer cells, but is not found in normal mammary tissue. To date, this protein has only been described in humans. Additionally, no animal model has been established to investigate the potential merits of TARP as tumor marker or a target for adoptive tumor immunotherapy. In this study conducted to characterize feline T-cell receptor γ sequences, constructs very... -
Bioavailability of the amino acid-attached prodrug as a new anti-HIV agent in rats
Kyung-Ae Chae, Hee-Jung Cho, Ji-Min Sung, Hee Lee, Dong-Cheol Seo, Jin-Suk Kim, Ho-Chul Shin 대한수의학회 Journal of Veterinary Science 5 Pages
대한수의학회 Journal of Veterinary Science 2007, 제 8권 제 3호 10 263-267 (5 pages)
The primary objective of this study was to compare the pharmacokinetics of a new anti-human immunodeficiency virus agent 1-(2-amino-pyridin-4-ylmethyl)-6-(3,5-dimethylbenzoyl)- 5-isopropyl-1H-pyrimidine-2,4-dione (VP-0502) with its amino acid prodrug alanine amide of VP-0502 (VP-0502AL), following intravenous and oral administrations to rats. The plasma concentrations of both analytes were analyzed via high-performance liquid chromatography coupled with photodiode-array detection (HPLC-DAD).... -
Potential of Using Ginger Essential Oils-Based Nanotechnology to Control Tropical Plant Diseases
Adamu Abdullahi, Khairulmazmi Ahmad, Intan Safinar Ismail, Norhayu Asib, Osumanu Haruna Ahmed, Abubakar Ismaila Abubakar, Yasmeen Siddiqui, Mohd Razi Ismail 한국식물병리학회 The Plant Pathology Journal 21 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 6호 1 515-535 (21 pages)
Essential oils (EOs) have gained a renewed interest in many disciplines such as plant disease control and medicine. This review discusses the components of ginger EOs, their mode of action, and their potential nanotechnology applications in controlling tropical plant diseases. Gas chromatography-mass spectroscopy (GC-MS), high-performance liquid chromatography, and headspace procedures are commonly used to detect and profile their chemical compositions EOs in ginger. The ginger EOs are composed... -
The Emerging Professional Teacher Identity of Early Childhood and Foundation Phase Pre-service Teachers: Implications for Teacher Education Programmes
Rita Chikoko, Thabo Msibi 환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 24 Pages
환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 2020, Vol.14 No.2 3 53-76 (24 pages)
Professional teacher identity is an important element in teaching. A teacher who rightfully identifies with teaching can be capable of helping learners achieve. Professional teacher identity needs to be addressed starting from pre-service level for preparation of effective teachers. This paper explores how Early Childhood Development and Foundation Phase (ECD and FP) pre-service teachers in South Africa construct professional teacher identity. A qualitative study in which six pre-service... -
Phenylethynyl-terminated polyimide, exfoliated graphite nanoplatelets, and the composites: an overview
Donghwan Cho, Lawrence T. Drzal 한국탄소학회 Carbon Letters 11 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 1 1-11 (11 pages)
In efforts to characterize and understand the properties and processing of phenylethynyl-terminated imide (LaRC PETI-5, simply referred to as PETI-5) oligomers and polymers as a high-temperature sizing material for carbon fiber-reinforced polymer matrix composites, PETI-5 imidization and thermal curing behaviors have been extensively investigated based on the phenylethynyl end-group reaction. These studies are reviewed here. In addition, the use of PETI-5 to enhance interfacial adhesion between... -
Cu²? ion reduction in wastewater over RDF-derived char
Hyung Won Lee, Rae-su Park, Sung Hoon Park, Sang-Chul Jung, Jong-Ki Jeon, Sang Chai Kim, Jin Do Chung, Won Geun Choi, Young-Kwon Park 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2016, Vol.18 8 49-55 (7 pages)
Refuse-derived fuel (RDF) produced using municipal solid waste was pyrolyzed to produce RDF char. For the first time, the RDF char was used to remove aqueous copper, a representative heavy metal water pollutant. Activation of the RDF char using steam and KOH treatments was performed to change the specific surface area, pore volume, and the metal cation quantity of the char. N2 sorption, Inductively Coupled Plasma-Atomic Emission Spectrometer (ICP-AES), and Fourier transform infrared spectroscopy... -
Preparation and characterization of carbon fiber-reinforced thermosetting composites: a review
Fan-Long Jin, Soo-Jin Park 한국탄소학회 Carbon Letters 11 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.2 1 67-77 (11 pages)
Carbon fibers (CFs) have a unique combination of properties which allow them to be widely used as reinforcing materials in advanced polymer composites. The mechanical properties of CF-reinforced polymer composites are governed mainly by the quality of interfacial adhesion between the CFs and the polymer matrix. Surface treatments of CFs are generally carried out to introduce chemical functional groups on the fiber surfaces, which provide the ability to control the surface characteristics of CFs.... -
Conducting and interface characterization of carbonate-type organic electrolytes containing EMImBF4 as an additive against activated carbon electrode
Mingyeong Kim, Kyungmin Kim and Seok Kim 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.1 8 51-56 (6 pages)
Carbonate-type organic electrolytes were prepared using propylene carbonate (PC) and dimethyl carbonate (DMC) as a solvent, quaternary ammonium salts, and by adding different contents of 1-ethyl-3-methyl imidazolium tetrafluoroborate (EMImBF4). Cyclic voltammetry and linear sweep voltammetry were performed to analyze conducting behaviors. The surface characterizations were analyzed by scanning electron microscopy method and X-ray photoelectron spectroscopy. From the experimental results,... -
Preparation of needle coke from petroleum by-products
Humala Paulus Halim, Ji Sun Im, Chul Wee Lee 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2013, Vol.14 No.3 3 152-161 (10 pages)
