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식물병원성 해충과 선충 방제의 새지평 I: 미생물
이혜란, 정지혜, 류명주, 류충민 한국식물병리학회 식물병연구 36 Pages
한국식물병리학회 식물병연구 2017, 23권 2호 3 114-149 (36 pages)
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저항성 턱 열기 운동과 저항성 턱 당기기 운동 수행 시 목뿔위근과 목뿔아래근의 근 활성도 차이 비교
윤영식(Yeong-Sik Yun), 장기연(Ki-Yeon Chang), 심선화(Sun-Hwa Shim), 우희순(Hee-Soon Woo) 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 11 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2018, 제 8권 제 11호 27 277-287 (11 pages)
본 연구는 저항성 턱 열기 운동과 저항성 턱 당기기 운동 수행에 따른 목뿔위근과 목뿔아래근의 근 활성도를 확인하고 그 차이를 비교하기위해 시행되었다. D광역시에 거주 중인 건강한 성인 48명을 대상으로 두 운동을 적용하였으며 운동 수행에 따른 목뿔위근과 목뿔아래근의 근 활성도는 표면 근전도를 사용하여 측정하였다. 운동 수행 간 측정된 목뿔위근과 목뿔아래근의 근 활성도는 대응표본 T 검정을 통해 차이를 비교하였다. 연구결과 두 운동 간 목뿔위근의 근 활성도에 있어서 통계학적 차이를 보였으며(p<.01), 목뿔아래근의... -
자발적 혀 저항 운동이 뇌졸중 환자의 삼킴기능에 미치는 효과: 사례연구
남경완 대한신경계작업치료학회 재활치료과학 13 Pages
대한신경계작업치료학회 재활치료과학 2018, 제 7권 4호 4 43-55 (13 pages)
목적: 본 연구는 뇌졸중 환자를 대상으로 자발적 혀 저항 운동을 적용하여 삼킴기능에 미치는 효과를 알아보았다. 연구방법: 본 연구는 2012년 9월 3주간, 2014년 2월 3주간 각각 2명의 환자를 대상으로 하는 사례연구였다. VFSS검사 이후 환자의 동의를 받고 매일 1회기씩 주 5회로, 3주 동안 진행하였다. 자발적 혀 저항운동은 혀 내밀기, 혀 옆으로 밀기, 혀로 입천장 밀기로 구성하였다. 중재는 한 회기 당 각각 운동별로 10회를 1세트로 총 3세트를 진행하였다. 결과: 자발적 혀 저항 운동 프로그램은 삼킴 장애 정도에서 VFS점수가... -
The electrical and heating properties of copper-incorporated graphite fibers fabricated using different ultrasonication techniques
Kyeong Min Lee, Min-Ji Kim, Hanjoo Jo, Sang Young Yeo, Young-Seak Lee 한국탄소학회 Carbon Letters 4 Pages
한국탄소학회 Carbon Letters 2017, Vol.24 15 111-114 (4 pages)
Electrical energy can be converted into heat energy through ohmic joule heating. Metallic materials are typically used in electrical heating elements because of their great electrical conductivity. However, metallic materials have several weaknesses, such as corrosion susceptibility, heavy weight, high manufacturing costs, and electromagnetic wave emissions [1,2]. To resolve these problems, carbon materials with good electrical conductivity, such as carbon fibers, graphite fibers, carbon... -
Preparation of carbon discs using petroleum-based binder pitch reformed with carbon black
Sangmin Lee, Kyung Hoon Kim, Young-Seak Lee 한국탄소학회 Carbon Letters 4 Pages
한국탄소학회 Carbon Letters 2017, Vol.23 13 84-87 (4 pages)
coal tar-based pitches and petroleum-based pitches. The raw materials of the petroleum-based pitch are obtained through petroleum refining processes, such as fluidized catalytic cracking decant oil, vacuum residue and pyrolyzed fuel oil (PFO). These residue oils are reformed to petroleum-based pitches that are solid at room temperature and for which the molecular weight is controlled through cyclization, aromatization and polymerization conducted using high-temperature heat treatment [9-13]. -
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)
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... -
Nitrogen-doped carbon nanosheets from polyurethane foams and removal of Cr(VI)
Jiaqi Duan, Baohua Zhang, Huailin Fan, Wenzhong Shen, Shijie Qu 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2017, Vol.22 7 60-69 (10 pages)
Nitrogen-doped carbon nanosheets with a developed porous structure were prepared from polyurethane foams by hydrothermal carbonization following ZnCl2 chemical activation. Scanning electron microscopy, thermogravimetric analysis, Fourier transform infrared spectroscopy, solid state 13C nuclear magnetic resonance (NMR) spectra and X-ray photoelectron spectroscopy were used to characterize the nitrogen-doped carbon nanosheet structure and composition. The removal of Cr(VI) by the N-doped carbon... -
Morphologies and surface properties of cellulose-based activated carbon nanoplates
Seulbee Lee, Min Eui Lee, Min Yeong Song, Se Youn Cho, Young Soo Yun, Hyoung-Joon Jin 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2016, Vol.20 5 32-38 (7 pages)
In this study, cellulose nanoplates (CNPs) were fabricated using cellulose nanocrystals obtained from commercial microcrystalline cellulose (MCC). Their pyrolysis behavior and the characteristics of the product carbonaceous materials were investigated. CNPs showed a relatively high char yield when compared with MCC due to sulfate functional groups introduced during the manufacturing process. In addition, pyrolyzed CNPs (CCNPs) showed more effective chemical activation behavior compared with... -
Adsorptive removal of atmospheric pollutants over Pyropia tenera chars
Heejin Lee, Rae-su Park, Hyung Won Lee, Yeojin Hong, Yejin Lee, Sung Hoon Park, Sang-Chul Jung, Kyung-Seun Yoo, Jong-Ki Jeon, Young-Kwon 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 10 79-88 (10 pages)
As a replacement for activated carbon, biochar was synthesized and used for the adsorptive removal of formaldehyde and nitrogen oxide. Biochar was produced from the fast pyrolysis of the red marine macro alga, Pyropia tenera. The P. tenera char was then activated with steam, ammonia and KOH to alter its characteristics. The adsorption of formaldehyde, which is one of the main indoor air pollutants, onto the seaweed char was performed using 1-ppm formaldehyde and the char was activated using a... -
Cu²? ion reduction in wastewater over RDF-derived char
Hyung Won Lee, Rae-su Park, Sung Hoon Park, Sang-Chul Jung, Jong-Ki Jeon, Sang Chai Kim, Jin Do Chung, Won Geun Choi, Young-Kwon Park 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2016, Vol.18 8 49-55 (7 pages)
Refuse-derived fuel (RDF) produced using municipal solid waste was pyrolyzed to produce RDF char. For the first time, the RDF char was used to remove aqueous copper, a representative heavy metal water pollutant. Activation of the RDF char using steam and KOH treatments was performed to change the specific surface area, pore volume, and the metal cation quantity of the char. N2 sorption, Inductively Coupled Plasma-Atomic Emission Spectrometer (ICP-AES), and Fourier transform infrared spectroscopy...
