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811.

나노입자에 기초한 의학치료와 연구

Chul-Hee Choi, Seong Hee Choi 한국청각언어재활학회 Audiology and Speech Research 8 Pages

한국청각언어재활학회 Audiology and Speech Research 2013, 제 9권 제 1호 2 7-14 (8 pages)

Chul-Hee Choi, Seong Hee Choi 저
- 3,000원
812.

일반 질환과 난청

김규상 한국청각언어재활학회 Audiology and Speech Research 9 Pages

한국청각언어재활학회 Audiology and Speech Research 2011, 제 7권 제 1호 1 1-9 (9 pages)

김규상 저
...
- 3,000원
이질환으로 환자가 호소할 수 있는 주 증상은 청력장애(난청), 이명, 현훈, 이루, 이통, 안면신경마비이며 그외 두통, 이폐쇄감, 이소양증 등이 있을 수 있다. 청력장애는 청기기능의 주요한 장애이며, 청력장애의 병변부위에 따라 임상적으로 현재 사용하고 있는 난청의 유형은 전음성난청(conductive hearing loss), 감각신경성난청(sensorineural hearing loss), 혼합성난청(mixed hearing loss), 중추성난청(Central Auditory Processing Disorder; CAPD), 기능성난청(functional hearing loss)이 있다.
813.

청소년들의 자기주도학습, 관계성, 자아개념 및 학업성취 간의 관계

안도희, 김유리 한국교육학회 교육학연구 25 Pages

한국교육학회 교육학연구 2014, 52권 1호 1 1-25 (25 pages)

안도희, 김유리 저
...
- 5,400원
본 연구는 초 중 고등학생을 대상으로 그들의 자기주도학습과 관계성(교사-학생관계 및 또래관 계), 자아개념, 학업성취가 어떠한 관계를 가지며, 학교급에 따라 이들 변인들이 차이가 있는지를 규명 하고자 하였다. 연구 결과, 자기주도학습은 관계성(교사-학생관계 및 또래관계), 자아개념과 학업성취 변인과 정적 상관을 가지며, 관계성(교사-학생관계 및 또래관계)은 자아개념과 학업성취 변인과 정적 상관을 가지는 것으로 나타났다. 학교급에 따른 변인들 간의 차이를 규명한 결과, 초등학생이 중 고등 학생보다 자기주도학습,...
814.

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...
815.

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)

Mayakrishnan Gopiraman, Somasundaram Saravanamoorthy, Seung-Hyun Kim, Ill-Min Chung 저
...
- 3,000원
and X-ray diffraction analyses. The presence of heteroatoms (O and N) in the carbon materials was confirmed by X-ray photoemission spectroscopy. High resolution transmission electron microscopic images and selected area diffraction patters further revealed the porous structure and amorphous nature of the prepared electrode materials. The resultant porous carbons (PS-600, PS-700, PS-800, and PS-900) were utilized as electrode material for supercapacitors. To our delight, the PS-900 demonstrated a...
816.

Preparation of photoresist-derived carbon micropatterns by proton ion beam lithography and pyrolysis

Hui-Gyun Nam, Jin-Mook Jung, In-Tae Hwang, Junhwa Shin, Chang-Hee Jung, Jae-Hak Choi 한국탄소학회 Carbon Letters 7 Pages

한국탄소학회 Carbon Letters 2017, Vol.24 8 55-61 (7 pages)

Hui-Gyun Nam, Jin-Mook Jung, In-Tae Hwang, Junhwa Shin, Chang-Hee Jung, Jae-Hak Choi 저
...
- 3,000원
Carbon micropatterns (CMs) were fabricated from a negative-type SU-8 photoresist by proton ion beam lithography and pyrolysis. Well-defined negative-type SU-8 micropatterns were formed by proton ion beam lithography at the optimized fluence of 1×1015 ions cm?2 and then pyrolyzed to form CMs. The crosslinked network structures formed by proton irradiation were converted to pseudo-graphitic structures by pyrolysis. The fabricated CMs showed a good electrical conductivity of 1.58×102 S cm?1 and a...
817.

Effect of the surface modification using MWCNTs with different L/D by two different methods of deposition on the IFSS of single carbon fiber-epoxy resin composite

Minerva L. Herrera-Sosa, Alex Valadez-Gonz?lez, Humberto V?zquez-Torres, Pierre G. Mani-Gonz?lez, Pedro J. Herrera-Franco 한국탄소학회 Carbon Letters 10 Pages

한국탄소학회 Carbon Letters 2017, Vol.24 3 18-27 (10 pages)

Minerva L. Herrera-Sosa, Alex Valadez-Gonz?lez, Humberto V?zquez-Torres, Pierre G. Mani-Gonz?lez, Pedro J. Herrera-Franco 저
...
- 3,000원
amine surface groups. The MWCNT were deposited on the CF using two methods, by electrostatic attraction and by chemical reactions. The changes in the CF surface morphology after the MWCNT deposition were analyzed using SEM, which revealed a higher density and uniform coverage for the PAMAM-treated CF and the short MWCNTs. The interfacial adhesion of the composite materials was evaluated using the single fiber fragmentation technique. The results indicated an improvement in the interfacial shear...
818.

Fabrication of nitrogen doped ordered mesoporous carbon derived from glucosamine with hybrid capacitive behaviors

Deyi Zhang, Mei Han, Yubing Li, Bing Wang, Yi Wang, Kunjie Wang, Huixia Feng 한국탄소학회 Carbon Letters 8 Pages

한국탄소학회 Carbon Letters 2017, Vol.23 2 9-16 (8 pages)

Deyi Zhang, Mei Han, Yubing Li, Bing Wang, Yi Wang, Kunjie Wang, Huixia Feng 저
...
- 3,000원
This paper introduces a nitrogen-doped ordered mesoporous carbon (NOMC) derived from glucosamine with hybrid capacitive behaviors, achieved by successfully combining electrical double-layer capacitance with pseudo-capacitance behaviors. The nitrogen doping content of the fabricated NOMC reached 7.4 at% while its specific surface area (SBET) and total pore volume reached 778 m2 g?1 and 1.17 cm3 g?1, respectively. A dual mesoporous structure with small mesopores centered at 3.6 nm and large...
819.

Li-ion battery anodes from ginkgo leaf-derived nanoporous carbons rich in redox-active heteroatoms

Na Rae Kim, Hong Joo An, Young Soo Yun, Hyoung-Joon Jin 한국탄소학회 Carbon Letters 5 Pages

한국탄소학회 Carbon Letters 2017, Vol.22 13 110-114 (5 pages)

Na Rae Kim, Hong Joo An, Young Soo Yun, Hyoung-Joon Jin 저
...
- 1,500원
formula LiC6, via the intercalation of lithium ions at 0.1 V vs. Li+/Li, corresponding to a capacity of ~372 mAh g?1 [8,9]. The favorable energy density and reversible charge/discharge cycles of graphite have contributed to the commercial success of conventional LIBs. Nevertheless, the new demands of state-of-the art applications require better energy and power characteristics, requiring the development of alternative anode materials that can surpass the electrochemical performance of graphite.
820.

Synthesis and characterization of carbon doped TiO₂ photocatalysts supported on stainless steel mesh by sol-gel method

JO. Tijani, OO. Fatoba, TC. Totito, WD. Roos, LF. Petrik 한국탄소학회 Carbon Letters 12 Pages

한국탄소학회 Carbon Letters 2017, Vol.22 6 48-59 (12 pages)

JO. Tijani, OO. Fatoba, TC. Totito, WD. Roos, LF. Petrik 저
...
- 4,100원
The influence of the pyrolysis temperature and holding time on the morphological characteristics, particle sizes and surface area of the prepared catalyst was investigated. The prepared catalysts were characterized by several analytical methods: high resolution scanning electron microscopy (HRSEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), and X-ray photoelectron spectroscopy (XPS). The XRD patterns showed that the supported TiO₂ nanocrystals...

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