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Graphene field-effect transistor for radio-frequency applications : review
Jeong-Sun Moon 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2012, Vol.13 No.1 2 17-22 (6 pages)
voltage gain (transconductance /output conduc- tance). Also, the ratio of on-state current over off-state current, I on/Ioff, was ~4 with feld-effect mobility below 200 cm 2/Vs. While graphene feld-effect mobility as high as 5400 cm 2/Vs for electron has been demonstrated [22], it was achieved using six to seven layers of epitaxial graphene on C-face SiC substrates, Table 1. A brief summary o... -
Real-Time, Simultaneous and Proportional Myoelectric Control for Robotic Rehabilitation Therapy of Stroke Survivors
YoungJin Jung, Hae Yean Park, Kinsuk Maitra, Nagarajan Prabakar, Jong-Hoon Kim 대한신경계작업치료학회 재활치료과학 10 Pages
대한신경계작업치료학회 재활치료과학 2018, 제 7권 1호 6 79-88 (10 pages)
& Parra, L. C. (2014). Linear and nonlinear regression techniques for simul- taneous and proportional myoelectric control. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 22 (2), 269-279. Jiang, N., Dosen, S., Muller, K. R., & Farina, D. (2012). Myoelectric control of artificial limbsis there a need to change focus? IEEE Signal Processing Magazine, 29(5), 152-150. Rosen,... Objective : Conventional therapy approaches for stroke survivors have required considerable demands on therapist’s effort and patient’s expense. Thus, new robotics rehabilitation therapy technologies have been proposed but they have suffered from less than optimal control algorithms. This article presents a novel technical healthcare solution for the real-time, simultaneous and propositional myoelectric control for stroke survivors’ upper limb robotic rehabilitation therapy. Methods : To... -
Development of a Model to Predict the Primary Infection Date of Bacterial Spot (Xanthomonas campestris pv. vesicatoria) on Hot Pepper
한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2014, 30권 2호 3 125-135 (11 pages)
of the doubling times (g) at 1034 oC. In total, 32 doubling times were calculated from the experiment population study of liquid culture. The second-order regression was the best fit. y is the doubling time and x is temperature. ..PAGE:6 Kim et al. 130 Spot symptoms depending on various temperatures and initial populations. The bacterial spot symptoms on the host leaf were observed from 5 to... A population model of bacterial spot caused by Xanthomonas campestris pv. vesicatoria on hot pepper was developed to predict the primary disease infection date. The model estimated the pathogen population on the surface and within the leaf of the host based on the wetness period and temperature. For successful infection, at least 5,000 cells/ml of the bacterial population were required. Also, wind and rain were necessary according to regression analyses of the monitored data. Bacterial spot on... -
Effects of cross-linking methods for polyethylene-based carbon fibers: review
Kwan-Woo Kim, Hye-Min Lee, Jeong-Hun An, Byoung-Suhk Kim, Byung-Gak Min, Shin-Jae Kang, Kay-Hyeok An, Byung-Joo Kim 한국탄소학회 Carbon Letters 24 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.3 2 147-170 (24 pages)
Using density functional theory and transition state theory, the author determined the rate constants for the internal elim- ination and radical chain reaction mechanism for the pyroly- sis of H4S. Nonlinear Arrhenius plots were found for all bimolec- ular reactions. To report and interpret rate constants, we used the Kooij equation. For reactions with low activa- tion barriers, nonlinearity was... In recent decades, there has been an increasing interest in the use of carbon fiber reinforced plastic (CFRP) in aerospace, renewable energy and other industries, due to its low weight and relatively good mechanical properties compared with traditional metals. However, due to the high cost of petroleum-based precursors and their associated processing costs, CF remains a specialty product and as such has been limited to use in high-end aerospace, sporting goods, automotive, and specialist... -
Preparation and Pore-Characteristics Control of Nano-Poros Materials using Organometallic Building Blocks
Gyn Hwan Oh, Chong Rae Park 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2003, Vol.4 No.1 1 1-9 (9 pages)
7 symmetry second order nonlinear optical(NLO) luminescence porous MOF . isonicotinate lanthanide porous MOF 0.925× 0.925 nm fluorescent emission (Fig. 9(a)) [55], 4-pyridylacrylate nickel(Ni) MOF 1.11 nm (Fig. 9(b))[56]. Table 3 . 2.2.4. Co-ligand system polymer cavity channel carboxy- late bipyridine porous MOF [64, 65]. 1,4-Benzene dicarboxylate 4,4'-bipyridine polymer , bipyridine channel... 다공성 소재는 문자 그대로 많은 양의 기공을 함유하는 소재로서, 세재의 제조시 다량으로 사용되어 온 제올라이트 및 오염물질 제거용으로 사용되어 온 다공성 탄소와 같은 예에서 보는 바와 같이 오랜 세월동안 우리 생활의 일부로 존재해 왔다. 그러나, 이들 소재에 존재하는 기공들은 그 크기나 모양에 있어 규칙성 및 균일성을 찾아보기 힘들기 때문에 기공크기는 서브나노에서 서브미크론 혹은 미크론 크기까지 통계적 분포를 보이며 기공의 모양은 프랙탈적 특징을 나타내었다. -
Comparative proteomic analysis of outer membrane protein 43 (omp43)-deficient Bartonella henselae
Jun-Gu Kang, Hee-Woo Lee, Sungjin Ko, Joon-Seok Chae 대한수의학회 Journal of Veterinary Science 12 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 1호 9 59-70 (12 pages)
pH 3 to 10 nonlinear gradient strips (Amersham Biosciences, UK). Isoelectric focusing of the protein-containing samples was performed in a protein IEF cell (BioRad). Afterward, second- dimension analysis was performed on 9% to 16% linear gradient polyacrylamide gels, and protein fixation was performed. They were scanned in a Biorad GS710 densitometer (BioRad) and the results converted into... Outer membrane proteins (OMPs) of Gram-negative bacteria constitute the first line of defense protecting cells against environmental stresses including chemical, biophysical, and biological attacks. Although the 43-kDa OMP (OMP43) is major porin protein among Bartonella henselae-derived OMPs, its function remains unreported. In this study, OMP43-deficient mutant B. henselae (Δomp43) was generated to investigate OMP43 function. Interestingly, Δomp43 exhibited weaker proliferative ability than... -
A review: synthesis and applications of graphene/chitosan nanocomposites
Hui Yuan, Long-Yue Meng, Soo-Jin Park 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2016, Vol.17 No.1 2 11-17 (7 pages)
and adsorption of the graphene oxide/chitosan composite. Mater Rev, 28, 60 (2014). [17] Lu JJ, Feng M, Zhan HB. Preparation of graghene oxide/chitosan composite flms and investigations on their nonlinear optical limiting effect. Acta Phys Sin, 62, 014204 (2013). http://dx.doi. org/10.7498/aps.62.014204. [18] Akbari A, Derikvandi Z, Rostami SMM. Infuence of chitosan coating on the separation... promising material with excellent electrical, thermal, mechanical, and optical properties, which play important roles in most fields. Researchers have achieved considerable progress with graphene. Chitosan (CS) is a natural polymer that has been studied intensively owing to its specific formation, high chemical resistance, and excellent physical properties. These outstanding properties have led to its universal use in applications such as textile fabrics, tissue engineering, medicine and health,...