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전체 선택해제
총 54건 검색
본문검색 결과만 보기
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Exploring Teachers Views of Teaching through the Response Characteristics of Kinetic School Drawing(KSD) : Focusing on the Cases of Teachers in Mongolia
Kweon Hoe-yeon, Park Joong-hui, Lee Mi-ae 한국특수교육교과교육학회 특수교육교과교육연구 20 Pages
한국특수교육교과교육학회 특수교육교과교육연구 2020, 제 13권 제 2호 3 51-70 (20 pages)
This study was conducted to explore the perceptions of the teaching professions felt by teachers in the school field by analyzing the response characteristics of teachers in the Kinetic School Drawing(KSD) using a non-verbal medium called art. The subjects were 35 general teachers and special teachers who participated in the “Training of Special Education Teachers for Strengthening in Mongolia”. As an analysis standard for KSD, the criterion suggested by Song & Jeong(2011) - activity-creation,... -
청각장애 아동과 건청 아동의 이야기이해력 비교 연구
이경열 한국장애인복지학회 한국장애인복지학 16 Pages
한국장애인복지학회 한국장애인복지학 2013, Vol.22 7 129-144 (16 pages)
본 연구는 문자해독 능력에 상관없이 아동의 이야기 이해력을 측정할 수 있는 역동적인 평가도 구를 사용하여 건청 아동과 청각장애 아동의 이야기이해력을 비교하므로써 청각장애 아동을 위한 언어 중재 프로그램의 기초자료를 제공하는데 그 목적이 있다. 연구 대상은 청각장애아와 건청아 각 10명씩으로 만 9세 아동 총 20명이며, 본 연구에서 사용한 도구는 글자 없는 그림책을 이용한 아동용 ?이야기 이해력 검사?와 문장이해력 검사이다. 본 연구의 결과는 첫째, 건청 아동과 청각장애 아동간에 이야기 이해력 검사 점수가 유의한... -
Relationships among Leisure Involvement, Leisure Habit, Tourist Motivation and Tourist Behavior
Chang Seo hee 한국여가문화학회 여가학연구 28 Pages
한국여가문화학회 여가학연구 2015, Vol.13 No.3 1 1-28 (28 pages)
Increasing interest in physically active leisure lifestyles parallels the growth in physically active tourist pursuits. The purpose of this study was to examine the psychological and behavioral relationship between active leisure and tourism. Leisure and tourist activities, leisure involvement, leisure habit, tourist motivation, and tourist behavior were used to investigate this relationship. A probability sample of 316 university alumni association members who participate in active leisure and... -
Interconnected meso/microporous carbon derived from pumpkin seeds as an efficient electrode material for supercapacitors
Mayakrishnan Gopiraman, Somasundaram Saravanamoorthy, Seung-Hyun Kim, Ill-Min Chung 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2017, Vol.24 10 73-81 (9 pages)
a simple chemical activation method. The porous carbon materials were prepared at different temperatures (PS-600, PS-700, PS-800, and PS-900) and demonstrated huge surface areas (645?2029 m2 g?1) with excellent pore volumes (0.27?1.30 cm3 g?1). The wellcondensed graphitic structure of the prepared activated carbon materials was confirmed by Raman and X-ray diffraction analyses. The presence of heteroatoms (O and N) in the carbon materials was confirmed by X-ray photoemission spectroscopy. High... -
A facile green reduction of graphene oxide using Annona squamosa leaf extract
Basavaiah Chandu, Venkata Sai Sriram Mosali, Bhanu Mullamuri, Hari Babu Bollikolla 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2017, Vol.21 9 74-80 (7 pages)
A highly facile and eco-friendly green synthesis of Annona squamosa (custard apple) leaf extract reduced graphene oxide (CRG) nanosheets was achieved by the reduction of graphene oxide (GO). The as-prepared CRG was characterized with X-ray diffraction (XRD), transmission electron microscope (TEM), Fourier-transform infrared spectroscopy (FT-IR), ultraviolet-visible (UV-Vis), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopic techniques. Removal of oxygen containing moieties from the... -
Carbon rich fly ash and their nanostructures
Numan Salah, Sami S. Habib, Zishan H. Khan, Ahmed Alshahrie, Adnan Memic, Attieh A. Al-ghamdi 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 3 23-31 (9 pages)
Carbon rich fly ash was recently reported to have compositions that are ideal for use as a precursor and catalyst for carbon nanotube growth. This fly ash powder is mostly composed of pure carbon, predominantly present as sp2. In this work, the effect of sonication time on the morphology and structural properties of carbon rich fly ash particles is reported. The obtained results show that ultrasound treatment is an effective tool for producing ultrafine particles/fragments with higher porosity,... -
Adsorption of lisinopril and chlorpheniramine from aqueous solution on dehydrated and activated carbons
El-Said I. El-Shafey, Haider A. J. Al-Lawati, Wafa S. H. Al-Saidi 한국탄소학회 Carbon Letters 11 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 2 12-22 (11 pages)
Date palm leaflets were used as a precursor to prepare dehydrated carbon (DC) via phosphoric acid treatment at 150°C. DC, acidified with H3PO4, was converted to activated carbon (AC) at 500°C under a nitrogen atmosphere. DC shows very low surface area (6.1 m2/g) while AC possesses very high surface area (829 m2/g). The removal of lisinopril (LIS) and chlorpheniramine (CP) from an aqueous solution was tested at different pH, contact time, concentration, and temperature on both carbons. The... -
Manufacturing and characteristics of PAN-based composite carbon fibers containing cellulose particles
Jee-Woo Yang, Da Young Jin, Ji Eun Lee, Seung Goo Lee, Won Ho Park 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.3 7 203-210 (8 pages)
This study fabricated low thermal conductive polyacrylonitrile (PAN)-based carbon fibers containing cellulose particles while maintaining their mechanical properties. The high thermal conductivity of carbon fibers limits their application as a high temperature insulator in various systems such as an insulator for propulsion parts in aerospace or missile systems. By controlling process parameters such as the heat treatment temperature of the cellulose particles and the amount of cellulose added,... -
Stabilization of pitch-based carbon fibers accompanying electron beam irradiation and their mechanical properties
Mi-Seon Park, Yoonyoung Ko, Min-Jung Jung, Young-Seak Lee 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.2 8 121-126 (6 pages)
Carbon fibers are prepared by stabilizing pitch fibers accompanying electron beam (E-beam) irradiation. The carbon fibers pretreated by E-beam irradiation achieve a higher stabilization index than the carbon fibers that are only heat-stabilized. In addition, the carbon fibers subjected to E-beam irradiation in the stabilization step exhibit a comparable tensile strength to that of general purpose carbon fibers. The carbon fibers pretreated with an absorbed dose of 3000 kGy have a tensile... -
An overview of new oxidation methods for polyacrylonitrile?based carbon fibers
Hye Kyoung Shin, Mira Park, Hak-Yong Kim and Soo-Jin Park 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.1 2 11-18 (8 pages)
The process of oxidizing polyacrylonitrile (PAN)-based carbon fibers converts them into an infusible and non-flammable state prior to carbonization. This represents one of the most important stages in determining the mechanical properties of the final carbon fibers, but the most commonly used methods, such as thermal treatment (200°C to 300°C), tend to waste a great deal of process time, money, and energy. There is therefore a need to develop more advanced oxidation methods for PAN precursor...
