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871.

Knowledge, Attitudes, and Practices in Oral Health among Families with Preschool Children in an Urban Poor Community in Metro Manila

Maritess Oliveros-Villarico, DDM, Aurorita T. Roldan 환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 19 Pages

환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 2008, Vol.2 No.1 3 35-53 (19 pages)

Maritess Oliveros-Villarico, DDM, Aurorita T. Roldan 저
...
- 4,800원
The knowledge, attitudes and practices in oral health of families with preschool Filipino children of selected communities in urban Metro Manila were explored. One hundred thirty-two randomly selected children were examined and interviewed as well as their parents. Results were correlated with parents\' educational attainment. Results revealed that parents had adequate knowledge in oral health, had desirable attitudes but practices were not congruent with them. Moreover, the parents\'...
872.

유산소 운동강도의 차이가 인슐린저항성 지표 및 인슐린 pathway에 미치는 영향

이승범 한국웰니스학회 한국웰니스학회지 11 Pages

한국웰니스학회 한국웰니스학회지 2014, 제 9권 1호 15 173-183 (11 pages)

이승범 저
...
- 4,000원
본 연구의 목적은 20주간의 유산소 운동강도의 차이가 정상집단과 비만과 인슐린저항성 집단의 Glucose, Insulin, HOMA-IR 및 GLUT2., GLUT4 유전자의 발현변화에 미치는 영향을 알아보기 위해 실시하였다. 본 연구의 대상자는 40∼50세의 중년 여성으로 정 상 집단(n=20)과 비만과 인슐린저항성 집단(n=20) 총 40명으로 선정하였다. 실험기간은 총 20주이고, 주 3회, 1회 운동시간은 30∼ 80분이며, 측정항목으로 Glucose, Insulin, HOMA-IR, GLUT2 및 GLUT4 등을 측정하였다. 자료처리방법은 반복측정 이원변량분석 (two-way ANOVA with...
873.

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
...
- 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...
874.

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...
875.

A modified electrode by a facile green preparation of reduced graphene oxide utilizing olive leaves extract

Abeer Baioun, Hassan Kellawi, Ahamed Falah 한국탄소학회 Carbon Letters 8 Pages

한국탄소학회 Carbon Letters 2017, Vol.24 7 47-54 (8 pages)

Abeer Baioun, Hassan Kellawi, Ahamed Falah 저
...
- 3,000원
Different phytochemicals obtained from various natural plant sources are used as reduction agents for preparing gold, copper, silver and platinum nanoparticles. In this work a green method of reducing graphene oxide (rGO) by an inexpensive, effective and scalable method using olive leaf aqueous extract as the reducing agent, was used to produce rGO. Both GO and rGO were prepared and investigated by ultraviolet and visible spectroscopy, Fourier-transform infrared, scanning electron microscopy,...
876.

Flexural, electrical, thermal and electromagnetic interference shielding properties of xGnP and carbon nanotube filled epoxy hybrid nanocomposites

Young Sil Lee, Yeon Ho Park, Kwan Han Yoon 한국탄소학회 Carbon Letters 6 Pages

한국탄소학회 Carbon Letters 2017, Vol.24 6 41-46 (6 pages)

Young Sil Lee, Yeon Ho Park, Kwan Han Yoon 저
...
- 3,000원
was almost zero. The flexural modulus of the CNT-xGnP based epoxy composite continuously increased to 3.32 GPa with combined filler content up to 10 wt% while that of the CNT based epoxy composites slightly decreased to 1.96 GPa at 4 wt% CNT, and dropped to 1.57 GPa at 5 wt% loading, which is lower than that of epoxy. The CNT and CNT-xGnP samples had the same EMI SE at the same surface resistivity, because samples with the same surface conductivity have the same amount of the charge carriers.
877.

Improvement of gas sensing properties of carbon nanofibers based on polyacrylonitrile and pitch by steam activation

Jeongsik Kim, Hyung-Il Kim, Jumi Yun 한국탄소학회 Carbon Letters 5 Pages

한국탄소학회 Carbon Letters 2017, Vol.24 5 36-40 (5 pages)

Jeongsik Kim, Hyung-Il Kim, Jumi Yun 저
...
- 1,500원
nanofibers were activated with steam at various temperatures followed by subsequent carbonization to make carbon nanofibers with a highly conductive graphitic structure. Steam activation was effective in facilitating gas adsorption onto the carbon nanofibers due to the increased surface area. The carbon nanofibers activated at 800°C had a larger surface area and a lower micro pore fraction resulting in a higher variation in electrical resistance for improved CO gas sensing properties.
878.

Study on properties of eco-friendly reduction agents for the reduced graphene oxide method

Young-il Na, Young Il Song, Sun Woo Kim, Su-Jeong Suh 한국탄소학회 Carbon Letters 9 Pages

한국탄소학회 Carbon Letters 2017, Vol.24 1 1-9 (9 pages)

Young-il Na, Young Il Song, Sun Woo Kim, Su-Jeong Suh 저
...
- 3,000원
We studied the basic properties and fabrication of reduced graphene oxide (rGO) prepared using eco-friendly reduction agents in the graphene solution process. Hydrazine is generally used to reduce graphene oxide (GO), which results in polluting emissions as well as fixed nitrogen functional groups on different defects in the graphene sheets. To replace hydrazine, we developed eco-friendly reduction agents with similar or better reducing properties, and selected of them for further analysis. In...
879.

Lyocell-based activated carbon fibers improved the adsorption of harmful gas properties when produced via dual-simultaneous treatments

Byong Chol Bai, Ji Sun Im, Young-Seak Lee 한국탄소학회 Carbon Letters 5 Pages

한국탄소학회 Carbon Letters 2017, Vol.23 10 69-73 (5 pages)

Byong Chol Bai, Ji Sun Im, Young-Seak Lee 저
...
- 1,500원
In gas adsorption processes, activated carbon fibers (ACFs) are used for the adsorption of the harmful gases that are generated by coal or oil combustion, and they have been widely studied [1,2]. ACFs have been used for harmful gas removal because of their specific surface area, micropores, reproducibility, safety, and processing ability, which are beneficial properties for a wide range of applications [3,4].
880.

Dispersions of partially reduced graphene oxide in various organic solvents and polymers

Hye Min Kim, Seo Gyun Kim, Heon Sang Lee 한국탄소학회 Carbon Letters 8 Pages

한국탄소학회 Carbon Letters 2017, Vol.23 8 55-62 (8 pages)

Hye Min Kim, Seo Gyun Kim, Heon Sang Lee 저
...
- 3,000원
We report on the dispersion state of partially reduced graphene oxide (PRGO) in organic solvents, namely methyl ethyl ketone, ethyl acetate, methylene chloride, toluene, and xylene, by controlling the carbon to oxygen (C/O) atomic ratio of the PRGOs. A two-phase solvent exchange method is also proposed to transfer PRGO from water to an aprotic solvent, such as methyl ethyl ketone. We achieve relatively good dispersion in aprotic and non-polar solvents by controlling the C/O atomic ratio of the...

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