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361.

Extraction and characterization of lignin from black liquor and preparation of biomass-based activated carbon therefrom

Daeyeon Kim, Jinsil Cheon, Jeonghoon Kim, Daekyun Hwang, Ikpyo Hong, Oh Hyeong Kwon, Won Ho Park, Donghwan Cho 한국탄소학회 Carbon Letters 8 Pages

한국탄소학회 Carbon Letters 2017, Vol.22 14 81-88 (8 pages)

Daeyeon Kim, Jinsil Cheon, Jeonghoon Kim, Daekyun Hwang, Ikpyo Hong, Oh Hyeong Kwon, Won Ho Park, Donghwan Cho 저
...
- 3,000원
In the present study, biomass-based lignin was extracted from industrial waste black liquor and the extracted lignin was characterized by means of attenuated total reflectance- Fourier transform infrared spectroscopy and 1H-nuclear magnetic resonance spectroscopy. The extracted lignin was carbonized at different temperatures and then activated with steam at 850oC. The extracted lignin in powder state was transformed into a bulky carbonized lignin due to possible fusion between the lignin...
362.

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
This study synthesized pure anatase carbon doped TiO₂ photocatalysts supported on a stainless steel mesh using a sol-gel solution of 8% polyacrylonitrile (PAN)/dimethylformamide (DMF)/TiCl₄. 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...
363.

Photocatalytic performance of graphene/Ag/TiO₂ hybrid nanocomposites

Jong-Ho Lee, In-Ki Kim, Donghwan Cho, Jeong-Il Youn, Young-Jig Kim, Han-Jun Oh 한국탄소학회 Carbon Letters 8 Pages

한국탄소학회 Carbon Letters 2015, Vol.16 No.4 4 247-254 (8 pages)

Jong-Ho Lee, In-Ki Kim, Donghwan Cho, Jeong-Il Youn, Young-Jig Kim, Han-Jun Oh 저
...
- 3,000원
To improve photocatalytic efficiency, graphene/Ag/TiO₂ nanotube catalyst was synthesized, and its surface characteristics and photocatalytic activity investigated. For deposition of Ag nanoparticles on the TiO₂ nanotubes, a polymer compound containing CH₃COOAg/poly(Llactide) was utilized, and the silver particles were precipitated by reducing the silver ions during the annealing process. Graphene deposition on the Ag/TiO₂ nanotubes was achieved using an electrophoretic deposition process....
364.

Method and mechanism of dispersing agent free dispersion of short carbon fibers in silicon carbide powder

Thakur Sudesh Kumar Raunija, Mariamma Mathew, Sharad Chandra Sharma 한국탄소학회 Carbon Letters 7 Pages

한국탄소학회 Carbon Letters 2014, Vol.15 No.3 4 180-186 (7 pages)

Thakur Sudesh Kumar Raunija, Mariamma Mathew, Sharad Chandra Sharma 저
...
- 3,000원
This study highlights a novel method and mechanism for the rapid and effective milling of carbon fibers (CFs) in silicon carbide (SiC) powder, and also the dispersion of CFs in SiC powder. The composite powders were prepared by chopping and exfoliation of CFs, and ball milling of CFs and SiC powder in isopropyl alcohol. A wide range of CFs loading, from 10 to 50 vol%, was studied. The milling of CFs and SiC powder was checked by measuring the average particle size of the composite powders. The...
365.

Double-walled carbon nanotubes: synthesis, structural characterization, and application

Yoong Ahm Kim, Kap-Seung Yang, Hiroyuki Muramatsu, Takuya Hayashi, Morinobu Endo, Mauricio Terrones, Mildred S. Dresselhaus 한국탄소학회 Carbon Letters 12 Pages

한국탄소학회 Carbon Letters 2014, Vol.15 No.2 4 77-88 (12 pages)

Yoong Ahm Kim, Kap-Seung Yang, Hiroyuki Muramatsu, Takuya Hayashi, Morinobu Endo, Mauricio Terrones, Mildred S. Dresselhaus 저
...
- 4,100원
Double walled carbon nanotubes (DWCNTs) are considered an ideal model for studying the coupling interactions between different concentric shells in multi-walled CNTs. Due to their intrinsic coaxial structures they are mechanically, thermally, and structurally more stable than single walled CNTs. Geometrically, owing to the buffer-like function of the outer tubes in DWCNTs, the inner tubes exhibit exciting transport and optical properties that lend them promise in the fabrication of field-effect...
366.

Carbon nanofiber-reinforced polymeric nanocomposites

Changwoon Jang, John Hutchins, Jaesang Yu 한국탄소학회 Carbon Letters 9 Pages

한국탄소학회 Carbon Letters 2013, Vol.14 No.4 1 197-205 (9 pages)

Changwoon Jang, John Hutchins, Jaesang Yu 저
...
- 3,000원
367.

Parametric Study of Methanol Chemical Vapor Deposition Growth for Graphene

Hyunjin Cho, Changhyup Lee, In Seoup Oh, Sungchan Park, Hwan Chul Kim, Myung Jong Kim 한국탄소학회 Carbon Letters 7 Pages

한국탄소학회 Carbon Letters 2012, Vol.13 No.4 2 205-211 (7 pages)

Hyunjin Cho, Changhyup Lee, In Seoup Oh, Sungchan Park, Hwan Chul Kim, Myung Jong Kim 저
...
- 3,000원
368.

Effect of few-walled carbon nanotube crystallinity on electron field emission property

HaeDeukJeong, JongHyeokLee, ByungGapLee, HeeJinJeong, Geon-WoongLee, DaeSukBang, DonghwanCho, Young-BinPark 한국탄소학회 Carbon Letters 11 Pages

한국탄소학회 Carbon Letters 2011, Vol.12 No.4 3 207-217 (11 pages)

HaeDeukJeong, JongHyeokLee, ByungGapLee, HeeJinJeong, Geon-WoongLee, DaeSukBang, DonghwanCho, Young-BinPark 저
...
- 4,000원
369.

강화도 남단에 도래하는 도요새들의 해안 내륙 휴식지 이용과 이들의 이용에 영향을 미치는 환경요인들

Kwan Mok Kim, Young Min Moon, Jeong Chil Yoo 한국습지학회 한국습지학회지 14 Pages

한국습지학회 한국습지학회지 2013, Vol.15 No.2 10 251-264 (14 pages)

Kwan Mok Kim, Young Min Moon, Jeong Chil Yoo 저
- 4,300원
도요·물떼새들은 만조시에 해안 내륙 휴식지에서 휴식을 취하는데, 휴식지를 선택할 때 여러 가지 요소들을 고려한다. 우리는 도요·물떼새 8종(알락꼬리마도요 Numenius madagascariensis, 청다리도요 Tringa nebularia, 큰뒷부리도요 Limosa lapponica, 개꿩 Pluvialis squatarola, 민물도요 Calidris alpine, 중부리도요 Numenius phaeopus, 마도요 Numenius arquata, 뒷부리도요 Xenus cinereus)을 대상으로 휴식지의 시공간적 이용과 그 이용에 영향을 미치는 요인들을 분석하였다. 휴 식지 내 고인 물의 면적과 길이, 기온, 풍속,...
370.

노인의 약물 오 ‧ 남용행위 예측 모형

김정선, 강현철 한국노인간호학회 노인간호학회지 11 Pages

한국노인간호학회 노인간호학회지 2013, 제 15권 제 1호 4 32-42 (11 pages)

김정선, 강현철 저
- 4,000원
21세기 과학의 발전은 의료기술의 발전과 함께 경제수준 향상의 원동력이 되어 인간의 평균수명을 연장시키고, 유례 없이 빠른 속도로 나타난 고령화는 사회 전반에 다양한 문제 를 야기하고 있다. 2012년 현재 우리나라 노인인구는 전체인 구의 11.8%로 이미 고령화 사회로 2018년에는 고령사회로 진입할 예정이다(Statistics Korea [SK], 2011). 2008년 노인실태조사에 의하면 65세 이상 노인의 84.9% 가 1가지 이상, 33.7%가 3가지 이상의 의사진단 만성질환을 보유하고 있었고, 93.7%가 1가지 이상, 27.5%가 3가지 이상 의 처방약물을...

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