자료유형
발행기관
- 한국탄소학회(9)
- 인문사회과학기술융합학회(8)
- 대한생리학회-대한약리학회(5)
- 대한수의학회(5)
- 물리치료재활과학회(4)
- 대한신경계작업치료학회(2)
- 미디어스토리텔링학회(2)
- 한국기초간호학회(2)
- 한국정보과학회(2)
- 대한기계학회(1)
- 대한치과이식임플란트학회(1)
- 제어로봇시스템학회(1)
- 한국교원대학교 뇌기반교육연구소(1)
- 한국습지학회(1)
- 한국열환경공학회(1)
- 한국청각언어재활학회(1)
- 환태평양유아교육연구학회(1)
간행물
- CARBON LETTERS(9)
- 예술인문사회융합멀티미디어논문지(8)
- THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY(5)
- JOURNAL OF VETERINARY SCIENCE(4)
- PHYSICAL THERAPY REHABILITATION SCIENCE(4)
- JOURNAL OF KOREAN BIOLOGICAL NURSING SCIENCE(2)
- 미디어스토리텔링(2)
- 재활치료과학(2)
- 정보과학회논문지. JOURNAL OF KIISE. 시스템 및 이론(2)
- ASIA-PACIFIC JOURNAL OF RESEARCH IN EARLY CHILDHOOD EDUCATION(1)
- AUDIOLOGY AND SPEECH RESEARCH(1)
- BRAIN, DIGITAL, & LEARNING(1)
- JOURNAL OF DENTAL IMPLANT RESEARCH(1)
- KOREAN JOURNAL OF VETERINARY RESEARCH(구 대한수의학회지)(1)
- 대한기계학회논문집(1)
- 열환경공학(1)
- 제어-로봇-시스템학회 논문지(1)
- 한국습지학회지(1)
전체 선택해제
총 47건 검색
본문검색 결과만 보기
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Detecting Collisions in Graph-Driven Motion Synthesis for Crowd Simulation
성만규, Sung. Man-Kyu 한국정보과학회 정보과학회논문지. Journal of KIISE. 시스템 및 이론 9 Pages
한국정보과학회 정보과학회논문지. Journal of KIISE. 시스템 및 이론 2008, Vol.35 No.1 44-52 (9 pages)
본 논문에서는 모션켑쳐데이타를 이용한 두 캐릭터간의 빠른 충돌감지에 대한 연구를 논의한다. 본 연구의 목적이 군중 시뮬레이션이기 때문에, 제안한 알고리즘은 캐릭터를 실린더 형태로 모델링 한 후에 Rough한 충돌감지를 목표로 한다. 이를 위해 계층적인 바운딩 박스 데이타 구조인 MOBB를 제안한다. MOBB는 모션클립에 대한 시공간 바운딩 박스이며, 제안된 알고리즘에 대한 테스트 결과 2배 이상의 속도 향상이 있음을 밝힌다. -
The Role of the Pattern Edge in Goldfish Visual Motion Detection
Sun-HeeKim, Chang-SubJung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.6 10 413-417 (5 pages)
To understand the function of edges in perception of moving objects, we defined four questions to answer. Is the focus point in visual motion detection of a moving object: (1) the body or the edge of the object, (2) the leading edge or trailing edge of the object, (3) different in scotopic, mesopic and photopic luminance levels, or (4) different for colored objects? We measured the Optomotor Response (OMR) and Edge Triggering Response (ETR) of goldfish. We used a square and sine wave patterns... -
Intraocular Injection of Muscimol Induces Illusory Motion Reversal in Goldfish
Sang-YoonLee, Chang-SubJung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.6 10 469-473 (5 pages)
Induced activation of the gamma-aminobutyric acidA (GABAA) receptor in the retina of goldfish caused the fish to rotate in the opposite direction to that of the spinning pattern during an optomotor response (OMR) measurement. Muscimol, a GABAA receptor agonist, modified OMR in a concentration- dependent manner. The GABAB receptor agonist baclofen and GABAC receptor agonist CACA did not affect OMR. The observed modifications in OMR included decreased anterograde rotation... -
Acute effect of self-myofascial release using a foam roller on the plantar fascia on hamstring and lumbar spine superficial back line flexibility
Kwang-sun Do, Jae-eun Kim, Jong-eun Yim 물리치료재활과학회 Physical Therapy Rehabilitation Science 6 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2018, 제 7권 제 1호 7 35-40 (6 pages)
Objective: The purpose of this study was to investigate the immediate effect of applying self-myofascial release (SMR) to the plantar fascia using a foam roller on hamstring and lumbar spine superficial back line (SBL). Design: Randomized controlled trial. Methods: Thirty-one healthy adults agreed to the method and purpose of the study. Selection and exclusion criteria were screened, and baseline measurements for the Toe Touch test and passive straight leg raise (PSLR) test were obtained. The... -
A comparison of vital capacity values and respiratory muscles activities on pelvic tilt position
Seo-Young Jang, Su-Young Lee 물리치료재활과학회 Physical Therapy Rehabilitation Science 7 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2015, 제 4권 제 2호 8 108-114 (7 pages)
Objective: The purpose of this study was to examine the effect on vital capacity (VC) and inspiratory muscle activation according to the anterior and posterior pelvic tilt positions. Design: One group pretest-posttest design. Methods: Twenty-six healthy adult men and women, age 19 to 27 years, volunteered to participate in this study. Forced vital capacity (FVC), and forced expiratory volume in 1 second (FEV1) were measured by desktop spirometer in the pelvic positions during respiration, and... -
The impact of head repositioning accuracy and proprioception on cervical stabilization exercise in healthy adults
Kyung Wook Kang, Dae Won Kang, Gu Ye Kwon, Han Byul Kim, Kyoung Min Noh, Gi Hyun Baek, Jin Kwan Cha, Hyun Hee Kim 물리치료재활과학회 Physical Therapy Rehabilitation Science 6 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2015, 제 4권 제 1호 9 49-54 (6 pages)
of the graph paper was measured three times with the averaged value used as the head repositioning accuracy. Neck proprioception was measured by a cervical range of motion device (CROM). Subjects wore the CROM tester and were to look straight ahead while bending his/her neck. Subjects were instructed to perform extension, lateral flexion and rotation, and the values were then measured and recorded. The measurements were performed pre-intervention, and after cervical stabilization exercise.... -
Non-invasive quantification of hepatic fat content in healthy dogs by using proton magnetic resonance spectroscopy and dual gradient echo magnetic resonance imaging
Francesca Del Chicca, Andrea Schwarz, Dieter Meier, Paula Grest, Annette Liesegang, Patrick R. Kircher 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 4호 14 570-576 (7 pages)
The objective of the present study was to describe two non-invasive methods for fat quantification in normal canine liver by using magnetic resonance imaging (MRI) and spectroscopy. Eleven adult beagle dogs were anesthetized and underwent magnetic resonance examination of the cranial abdomen by performing morphologic, modified Dixon (mDixon) dual gradient echo sequence, and proton magnetic resonance spectroscopy (1H MRS) imaging. In addition, ultrasonographic liver examination was performed,... -
Biceps femoris muscle transposition for treatment of cranial cruciate ligament rupture in small breed dogs
Roberto Tamburro*, Stefania Pinna, Anna Maria Tribuiani, Alessandra Panacea, Fabio Carli, Antonio Venturini 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 1호 13 93-98 (6 pages)
The purpose of this study was to evaluate a new extracapsular surgical technique for the treatment of cranial cruciate ligament rupture in small breed dogs. Nine small breed dogs (seven females and two males) weighing ≤ 15 kg were treated with biceps femoris muscle transposition (BFT). The duration of the BFT procedure was 20 min. Each patient underwent a standard clinical protocol and a questionnaire for the owners. Follow-up (at 1, 3, and 12 months postoperative) confirmed significant... -
Assessment of glomerular filtration rate with dynamic computed tomography in normal Beagle dogs
Jinhwa Chang, Sujin Kim, Joohyun Jung, Heechun Lee, Hojung Choi, Dongwoo Chang, Youngwon Lee, Junghee Yoon, Mincheol Choi* 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2011, 제 12권 제 4호 13 393-399 (7 pages)
The objective of our study was to determine individual and global glomerular filtration rates (GFRs) using dynamic renal computed tomography (CT) in Beagle dogs. Twenty-four healthy Beagle dogs were included in the experiment. Anesthesia was induced in all dogs by using propofol and isoflurane prior to CT examination. A single slice of the kidney was sequentially scanned after a bolus intravenous injection of contrast material (iohexol, 1 mL/kg, 300 mgI/mL). Time attenuation curves were created... -
Three-dimensional CT angiography of the canine hepatic vasculature
Yucheol Jeong, Changyun Lim, Sunkyoung Oh, Joohyun Jung, Jinhwa Chang, Junghee Yoon, Mincheol Choi* 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 4호 11 407-414 (8 pages)
Eight Beagle dogs were anesthetized and were imaged using a single channel helical CT scanner. The contrast medium used in this study was iohexol (300 mg I/ml) and doses were 0.5 ml/kg for a cine scan, 3 ml/kg for an enhanced scan. The flow rate for contrast material administration was 2 ml/sec for all scans. This study was divided into three steps, with unenhanced, cine and enhanced scans. The enhanced scan was subdivided into the arterial phase and the venous phase. All of the enhanced scans... -
‘좌우대칭 자’를 활용한 5학년 학생들의 점대칭도형의 의미 이해
김순영, 이광호 한국교원대학교 뇌기반교육연구소 Brain, Digital, & Learning 18 Pages
한국교원대학교 뇌기반교육연구소 Brain, Digital, & Learning 2019, 제 9권 제 3호 12 253-270 (18 pages)
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Chronic cerebral hypoperfusion and plasticity of the posterior cerebral artery following permanent bilateral common carotid artery occlusion
Kyung-OkCho, Seul-KiKim, SeongYunKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.6 9 643-650 (8 pages)
Vascular dementia (VaD) is a group of heterogeneous diseases with the common feature of cerebral hypoperfusion. To identify key factors contributing to VaD pathophysiology, we performed a detailed comparison of Wistar and Sprague–Dawley (SD) rats subjected to permanent bilateral common carotid artery occlusion (BCCAo). Eight-week old male Wistar and SD rats underwent BCCAo, followed by a reference memory test using a five-radial arm maze with tactile cues. Continuous monitoring of cerebral... -
MPTP-induced vulnerability of dopamine neurons in A53T α-synuclein overexpressed mice with the potential involvement of DJ-1 downregulation
SeongmiLee, SeungTackOh, HaJinJeong, SokCheonPak, Hi-JoonPark, JongpilKim, Hyun-seokCho, SongheeJeon 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.6 7 625-632 (8 pages)
Familial Parkinson’s disease (PD) has been linked to point mutations and duplication of the α-synuclein (α-syn) gene. Mutant α-syn expression increases the vulnerability of neurons to exogenous insults. In this study, we developed a new PD model in the transgenic mice expressing mutant hemizygous (hemi) or homozygous (homo) A53T α-synuclein (α-syn Tg) and their wildtype (WT) littermates by treatment with sub-toxic (10 mg/kg, i.p., daily for 5 days) or toxic (30 mg/kg, i.p., daily for 5... -
Cytotoxicity and Structure-activity Relationships of Naphthyridine Derivatives in Human Cervical Cancer, Leukemia, and Prostate Cancer
YuJinHwang, MiLyangChung, UyDongSohn, ChaeukIm 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.6 7 517-524 (8 pages)
Naphthyridine compounds are important, because they exhibit various biological activities including anticancer, antimicrobial, and anti-inflammatory activity. Some naphthyridines have antimitotic effects or demonstrate anticancer activity by inhibiting topoisomerase II. These compounds have been investigated as potential anticancer agents, and several compounds are now part of clinical trials. A series of naphthyridine derivatives were evaluated for their in vitro cytotoxic activities against... -
임플란트의 초기안정성에 관한 고찰: 성견에서의 실험적 연구
김영각, 김성탁, 현기, 황석현, 김재만, 주총, 전상호, 최연조, 류재준, 권종진 대한치과이식임플란트학회 Journal of Dental Implant Research 7 Pages
대한치과이식임플란트학회 Journal of Dental Implant Research 2013, 제 32권 2호 2 33-39 (7 pages)
최근 임플란트가 대중적으로 많이 적용됨으로써 환자들의 요구 및 시술자의 필요성에 의해 전통적인 치료시기를 줄이고자 하는 많은 노력 이 요구되며, 그에 따라 임플란트의 치유기간에 대해 연구가 많이 진행 되어 왔다. 2002년 스페인 World Congress에서는, 즉시 및 조기 하 중부여가 많은 임상케이스에서 성공적으로 적용될 수 있음을 보고하였 다1). 1990년 Schnitman 등에 의하면 즉시 로딩 임플란트의 성공률은 85.7%로 보고되었으며2), 최근 Kan과 Rungcharassaeng에 의하면 단일 치아 임플란트에서는 100%까지도 보고되고... -
OpenCT 기반의 물체추적시스템
이상영 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 9 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2016, 제 6권 제 5호 4 29-37 (9 pages)
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엿보기 공격에 견고한 결합 암호 인증 기법
최동민, 정일용 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 9 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2015, 제 5권 제 5호 42 419-427 (9 pages)
본 연구에서 우리는 엿보기 공격에 견고한 결합 암호 인증 기법을 제안한다. 제안하는 방법은 기 존에 사용되었던 텍스트 기반 비밀번호 인증 방식의 문제점인 엿보기 공격에 취약한 부분을 개선하 였다. 이 방법은 기존의 텍스트 기반 인증 요소에 사용자 행위 정보 인증 요소를 결합한 것으로써, 현재 인터넷 뱅킹에 사용되는 2채널 인증 기법에서 요구하는 부차적인 인증수단이 필요하지 않으므 로 사용자 편의성을 고려하였다. 또한 이 방법은 인증에 사용되는 요소가 2가지로 2채널 인증에서 검 증하는 사용자 확인과 동등한 수준의... -
Implementation Of 802.15.4 Wireless Sensor Network in Real-time Monitoring and Control System for GreenHouse
Jaypal Baviskar, Afshan Mulla, , Amol Baviskar, Jeet Desai 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 19 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2015, 제 5권 제 5호 10 87-105 (19 pages)
In order to meet the increasing need for quality conscience crops and to utilize the resources efficiently, the concept of Greenhouse was introduced. It assists in accurate monitoring and controlling of various parameters, in order to nurture healthy crops. In this paper efforts are made to acknowledge the problems associated with maintaining precise environmental conditions, and to implement a sophisticated system to supervise the real-time monitoring and controlling operation inside the... -
A Study on Development of Improvement Guidelines of Smart Accessibility for the Disabled
Woochun Jun 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 12 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2015, 제 5권 제 5호 6 47-58 (12 pages)
on the existing mobile accessibility guidelines and modifying them for better adaptability for the disabled. Our principles are as follows: avoidance of large image, contrast between background and input window color, avoidance of colored chart and graph, avoidance of tabular format, avoidance of blue or violet light use, provision of scanning contents, provision of alternatives for sound information, provision of speech recognition service, provision of sensory perception service, and provision... -
The Security in the Vehicular Ad Hoc Network (VANET) Using Expedite Message Authentication Protocol (EMAP)
Farkhod Alisherov 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 8 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2011, 제 1권 제 2호 6 99-106 (8 pages)
A vehicular ad hoc network (VANET) uses cars as mobile nodes in a MANET to create a mobile network. In the vehicular ad hoc networks the security is an important concern. For security, Vehicular ad hoc networks (VANETs) adopt the Public Key Infrastructure (PKI) and Certificate Revocation Lists (CRLs). In the Public Key Infrastructure system, the authentication of a received message is performed by checking if the certificate of the sender is included in the current Certificate Revocation Lists... -
Gaussian Profile based Vehicular Mobility Modeling
Brijesh Kumar Chaurasia, Shekhar Verma, G. S. Tomar 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 18 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2011, 제 1권 제 2호 2 59-76 (18 pages)
based model has been proposed to define the mobility behavior of the vehicles. Different types of influence on the mobility have been lumped and the profile of the motion of vehicles has been modeled as a Gaussian profile. In this model, a driver, first, selects the source, destination and his path and then, selects the parameters of the profile according to his/her presumption. Simulation and results show that profile based model is able to generate realistic and smooth mobility patterns. -
영화, 애니메이션 그리고 게임은 화려한 영상미로 관객과 이용자를 매료시키는 가장 보편적이면서도 쉽게 접할 수 있는 문화 콘텐츠다. 해당 콘텐츠 속의 주인공은 목적을 가지고 가상의 공간에서 동작을 수행하는 캐릭터들이며 이 캐릭터들의 동작을 창조하는 가장 보편적인 기술은 키프레이밍과 모션 캡처다. 캐릭터 애니메이션 연구자들이 활발한 연구를 진행하는 분야 중 하나는 캐릭터 동작을 생성해내는 기법에 관한 것이다. 키프레이밍과 모션 캡처만을 이용해 원하는 모든 동작을 생성하기에는 매우 지루한 수작업의 반복과 그에...
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완곡 추적 안구운동을 동반한 시운동자극이 만성 편측무시에 미치는 영향 : 예비연구
신재용, 유은영 대한신경계작업치료학회 재활치료과학 12 Pages
대한신경계작업치료학회 재활치료과학 2016, 제 5권 2호 7 81-92 (12 pages)
목적: 본 연구의 목적은 30분 동안의 완곡 추적 안구운동을 동반한 시운동 자극이 만성 편측무시에 미치 는 효과를 알아보는 것이다. 연구방법: 만성적으로 편측무시를 보이는 두 명의 환자를 대상으로 완곡 추적 안구운동을 동반한 시운동 자극을 실시하였다. 실험기간은 총 4주로 1주간의 기초선 측정과 2주간의 시운동자극 중재, 1주간의 기초선 측정으로 이루어졌으며, 중재는 2주 동안 1일 1회, 주 5회, 회기당 30분씩 적용하였다. 편측무 시의 측정은 주3회 격일로 측정하였다. 시운동자극은 바른 자세로 앉아 눈높이에 있는... -
Children’s Music Education Support System using Sensor Data, Video Images, and Sound Data
Kimio Shintani, Takehito Yasutaniya, Hirohide Haga, Shigeo Ka 환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 16 Pages
환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 2007, Vol.1 No.2 6 113-128 (16 pages)
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청각장애 아동의 청각기억 향상을 위한 모바일 어플리케이션 개발
이영미 한국청각언어재활학회 Audiology and Speech Research 12 Pages
한국청각언어재활학회 Audiology and Speech Research 2017, 제 13권 제 1호 6 50-61 (12 pages)
스마트 기기의 등장은 우리 사회를 스마트 미디어 사회로 변 화시켰으며, 스마트 기기 중에서 스마트폰의 성능과 기능은 이 동 및 정보 통신사업의 발전과 함께 짧은 시간 안에 비약적으 로 발전하였다(Jang & Kim, 2010). 스마트폰이 등장한 초기에 는 비싼 기기 가격과 통신 비용으로 보급이 저조하였으나, 점차 스마트폰의 보급률이 높아져서 2015년에는 휴대폰 가입자 5,720만명 중에서 약 70%가 스마트폰 사용자로 보고되었다 (Yoo, 2015). 모바일 시장조사업체인 와이즈앱이 10대에서 50대 까지의 국내 한국인 중에서 안드로이드... -
Effects of synthesis pressure conditions on the preparation of graphene-like carbonaceous materials from organic liquid precursors by a solvothermal method
Kwan-Woo Kim, Byoung Suhk Kim, Sang Won Lee, Dong Chul Chung, Byung-Joo Kim 한국탄소학회 Carbon Letters 5 Pages
한국탄소학회 Carbon Letters 2017, Vol.23 11 74-78 (5 pages)
Carbon materials with at least one dimension of 1?100 nm are called carbon nanomaterials. A significant body of previous research in physics, chemistry and biology has demonstrated that the properties of nano-composites are significantly different than those of the bulk materials [1]. Some unique phenomena, such as the quantum tunneling effect, and surface effects, have also been observed, and attributed to the large surface area and small size of the carbon nanomaterials. It has been reported... -
Comparative numerical evaluation for the low velocity impact behavior of T300 and T800 composite system
Jae-Seok Choi, Heung Soap Choi, Soo-Jin Park, Myung Kyun Park 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2017, Vol.22 9 89-95 (7 pages)
Carbon fiber reinforced polymer (CFRP) composites have been used for many decades for extreme light weight design purposes in various areas, such as the aerospace industry, automobiles, sports goods and etc. because they provide the advantages of high specific strength and high rigidity [1]. In particular, the fuselage and wings of various aircraft, as well as the load bearing structures and components of mechanical and civil engineering systems are currently being manufactured with CFRP.... -
Tribological properties of carbon fiber-reinforced aluminum composites processed by spark plasma sintering
Ki Hoon Jung, Seungjin Nam, Sung-Soo Kang, Bon-Cheol Ku, Yun Hyuk Bang, Jun Yeon Hwang 한국탄소학회 Carbon Letters 4 Pages
한국탄소학회 Carbon Letters 2017, Vol.21 14 103-106 (4 pages)
The development of light-weight and high-strength materials have gained attention to meet the evergrowing demands for safer and fuel-efficient automobiles. Thus, the importance and applications of composite materials are gradually increasing [1]. In the field of metal-matrix composite manufacturing, reinforcing agents are added to the metal matrix in the form of powders, whiskers, and fibers to improve the mechanical properties of metals [2]. Fibers have been used since the 1950s as structural... -
Effect of fiber-matrix adhesion on the fracture behavior of a carbon fiber reinforced thermoplastic-modified epoxy matrix
H.J. Carrillo-Escalante, A. ?lvarez-Castillo, A. Valadez-Gonz?lez, P. J. Herrera-Franco 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 6 47-56 (10 pages)
In this study, the fracture behavior of a thermoplastic-modified epoxy resin reinforced with continuous carbon fibers for two levels of fiber-matrix adhesion was performed. A carbon fiber with commercial sizing was used and also treated with a known silane, (3-glycidoxy propyl trimethoxysilane) coupling agent. Toughness was determined using the double cantilever test, together with surface analysis after failure using scanning electron microscope. The presence of polysulfone particles improved... -
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... -
One-step synthesis of dual-transition metal substitution on ionic liquid based N-doped mesoporous carbon for oxygen reduction reaction
Ulziidelger Byambasuren, Yukwon Jeon, Dorjgotov Altansukh, Yunseong Ji, Yong-Gun Shul 한국탄소학회 Carbon Letters 12 Pages
한국탄소학회 Carbon Letters 2016, Vol.17 No.1 8 53-64 (12 pages)
Nitrogen (N)-doped ordered mesoporous carbons (OMCs) with a dual transition metal system were synthesized as non-Pt catalysts for the ORR. The highly nitrogen doped OMCs were prepared by the precursor of ionic liquid (3-methyl-1-butylpyridine dicyanamide) for N/C species and a mesoporous silica template for the physical structure. Mostly, N-doped carbons are promoted by a single transition metal to improve catalytic activity for ORR in PEMFCs. In this study, our N-doped mesoporous carbons were... -
Effect of nitrogen doping and hydrogen confinement on the electronic properties of a single walled carbon nanotube
Bashir Mohi Ud Din Bhat, Jehangir Rashid Dar, Pratima Sen 한국탄소학회 Carbon Letters 4 Pages
한국탄소학회 Carbon Letters 2016, Vol.17 No.1 4 29-32 (4 pages)
This paper addresses the effect of dopants on the electronic properties of zigzag (8, 0) semiconducting single walled carbon nanotubes (SWCNTs), using extended H?ckel theory combined with nonequilibrium Green’s function formalism. Through appropriate dopant concentrations, the electronic properties of SWCNTs can be modified. Within this context, we present our ongoing investigation on (8, 0) SWCNTs doped with nitrogen. Quantum confinement effects on the electronic properties of the SWCNTs have... -
Carbon nanospheres synthesized via solution combustion method: their application as an anode material and catalyst for hydrogen production
Vivek Dhand, M Venkateswer Rao, J. S. Prasad, Garima Mittal, Kyong Yop Rhee, Hyeon Ju Kim, Dong Ho Jung 한국탄소학회 Carbon Letters 5 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.3 7 198-202 (5 pages)
Amorphous agglomerates of carbon nanospheres (CNS) with a diameter range of 10-50 nm were synthesized using the solution combustion method. High-resolution transmission electron microscopy (HRTEM) revealed a densely packed high surface area of SP2-hybridized carbon; however, there were no crystalline structural components, as can be seen from the scanning electron microscopy, HRTEM, X-ray diffraction, Raman spectroscopy, and thermal gravimetric analyses. Electrochemical and thermo catalytic... -
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.... -
Study on Antecedent Moisture Condition for Seolma Stream Basin
Ly Sidoeun, Shin Hyun Seok, Kim Duck Hwan, Kim Beom Jun, Kim, Hung Soo 한국습지학회 한국습지학회지 10 Pages
한국습지학회 한국습지학회지 2013, Vol.15 No.4 20 609-618 (10 pages)
Curve number (CN), originally developed, compiled by ‘The Natural Resources Conservation Service (NRCS)’, and has been widely used throughout the world. However, there is the uncertainty of CN derived from the use of antecedent moisture condition (AMC)/Antecedent Runoff Condition (ARC). As in Korea where nearly 70% covered by mountainous area, it is still not sufficient handbook precedent to guide or support the estimation of AMC/ARC. The failure to develop formal criteria of applying AMC/ ARC... -
광학식 동작 포착에서 동적 모델을 이용한 신뢰성있는 3-D 좌표 추정 및 추적
이동훈, 추창우, 김성진, 정순기, Lee. Dong-Hun, Chu. Chang-U, Kim. Seong-Jin, Jeong. Sun-Gi 한국정보과학회 정보과학회논문지. Journal of KIISE. 시스템 및 이론 10 Pages
한국정보과학회 정보과학회논문지. Journal of KIISE. 시스템 및 이론 2000, Vol.27 No.10 825-834 (10 pages)
광학식 동작 포착(optical motion capture)시스템에서 신뢰할만한 3차원 좌표의 획득과 마커의 궤적 추적은 매우 중요한 문제이다. 3차원 좌표를 획득하기 이해서는 다중의 카메라로부터 2차원의 데이터 간의 대응관계를 구해야 한다. 본 논문에서는 각 카메라에서의 3차원 마커들 간의 대응관계를 k-partite graph로 모델링하고, 릴렉세이션 알고리즘을 사용하여 고스트가 제거된 신뢰성있는 클릭을 추출한다. 이를 통해 정확하고 안정적인 3차원의 좌표를 생성할 수 있다. 또한 추출된 3차원 마커의 궤적의 추적을 위해 칼만 필터를...
