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501.

Developing Young Children\'s Scientific, Technological, and Social Competency through

Sumida ManabuFukada Shozo, Nakamura Hiroaki, Masukagami Masaru 환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 10 Pages

환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 2007, Vol.1 No.1 4 81-98 (10 pages)

Sumida ManabuFukada Shozo, Nakamura Hiroaki, Masukagami Masaru 저
...
- 3,000원
There is growing recognition that young children are familiar with nai\"ve physics, and construct their own theory about the natural world from early childhood. The research reported in this study focuses on intellectual play activities involving pendulums carried out by young children at a kinder - garten in Japan. Over the course of three weeks, five-year-old children partic - ipated in these pendulum play activities. They made pendulums by themselves, tried them out, compared them with...
502.

Influence of Upper Frequency Boundary on Consonant Perception in Normal Hearing and Cochlear Implant Adults

Son-A Chang, Min-Hyun Park, Seung-Ha Oh, Kyung-Min Lee 한국청각언어재활학회 Audiology and Speech Research 8 Pages

한국청각언어재활학회 Audiology and Speech Research 2017, 제 13권 제 3호 5 231-238 (8 pages)

Son-A Chang, Min-Hyun Park, Seung-Ha Oh, Kyung-Min Lee 저
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- 3,000원
Purpose: Although some studies argue that it is worthy for cochlear implant (CI) users to have frequency information above 3,000 Hz for consonant recognition, it is not clear whether CI patients make use of this information, especially in Korean. In this experiment, we tested whether consonant recognition in CI patients depended on the utilization of information from 3,000 to 8,000 Hz. Methods: We conducted consonant recognition tests in Korean [3 syllable structures: vowel-consonant-vowel...
503.

난청을 동반한 이명환자의 보청기 착용에 따른 이명완화효과와 예후인자

이현주, 김정범, 정재윤, 이정구, 서명환 한국청각언어재활학회 Audiology and Speech Research 9 Pages

한국청각언어재활학회 Audiology and Speech Research 2009, 제 5권 제 1호 8 51-59 (9 pages)

이현주, 김정범, 정재윤, 이정구, 서명환 저
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- 3,000원
Jastreboff의 신경생리학적 모델에 의하면, 이명은 말초 청각감수기에 병변이 발생하는 경우 상위 신경인 청신경계가 과도한 보상활동을 하게 되며 그 결과 자발전위 활동 즉, 이명 관련 전위활동(tinnitus related neuronal activity)이 증가하여 발생한다.10) 피질 하 경로에 전달된 이명 관련 전 위활동은 변연계(limbic system)를 활성화시켜 불쾌한 신호로 바뀌게 된다. 이명으로 인한 불편함은 일상생활이나 사회활동을 포함한 전반적인 삶의 질에 영향을 미치게 되므로, 이명을 적절히 치료하는 것은 환자에게 중요한 문제
504.

한국과 미국의 사회복지 윤리강령 비교연구 : 비밀보장, 이중관계, 문화적 다양성, 결함이 있는 동료를 중심으로

Elaine Congress, Wook Kim 한국임상사회사업학회 임상사회사업연구 17 Pages

한국임상사회사업학회 임상사회사업연구 2007, 제 4권 제 2호 7 175-191 (17 pages)

Elaine Congress, Wook Kim 저
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- 4,600원
505.

토픽모델링을 활용한 국내 활동보조서비스 연구동향 분석

김봉선 한국장애인복지학회 한국장애인복지학 28 Pages

한국장애인복지학회 한국장애인복지학 2018, Vol.42 6 163-190 (28 pages)

김봉선 저
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- 5,700원
본 연구는 활동보조서비스 관련 기존 연구의 흐름을 파악하여 향후 활동보조서비스 정책과 실천분야에 기여할 수 있는 연구방향을 제시하기 위하여 수행되었다. 이를 위해 2005년부터 2017년까지 수행된 활동보조서비스 관련 학술논문 83편의 초록을 확보하여 내용분석 및 토픽모델링을 실시하였다. 주요 분석결과는 다음과 같다. 첫째, 활동보조서비스 연구는 사회복지학 뿐 아니라 교육학, 재활학 등 다양한 영역에서 다루어지고 있었으며, 양적연구가 압도적으로 많이 수행되었다. 둘째, 단어출현빈도 분석결과 활동보조서비스...
506.

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)

Navvabeh Salarizadeh, Minoo Sadri, Hassan Hosseini, Reza. H. Sajedi 저
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- 3,000원
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...
507.

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)

Faten Ermala Che Othman, Norhaniza Yusof, Hasrinah Hasbullah, Juhana Jaafar, Ahmad Fauzi Ismail, Noor Shawal Nasri 저
...
- 3,000원
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...
508.

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)

Norulaina Alias, Muhammad Abbas Ahmad Zaini, Mohd Johari Kamaruddin 저
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- 4,000원
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...
509.

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)

Jian Guo, Soo-Jin Park, Long-Yue Meng, Xinghua Jin 저
...
- 3,000원
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...
510.

Adsorption of Nile Blue A from aqueous solution by different nanostructured carbon adsorbents

Shahryar Abbasi, Hadi Noorizadeh 한국탄소학회 Carbon Letters 8 Pages

한국탄소학회 Carbon Letters 2017, Vol.23 5 30-37 (8 pages)

Shahryar Abbasi, Hadi Noorizadeh 저
...
- 3,000원
Dyes are widely used in various industries including textile, cosmetic, paper, plastics, rubber, and coating, and their discharge into waterways causes serious environmental and health problems. Four different carbon nanostructures, graphene oxide, oxidized multi-walled carbon nanotubes, activated carbon and multi-walled carbon nanotubes, were used as adsorbents for the removal of Nile Blue A (NBA) dye from aqueous solution. The four carbon nanostructures were characterized by scanning electron...

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