http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Cho, Y.,Cho, H.,Park, M.,Ma, K. Korean Association of Organic Agriculture 2011 韓國有機農業學會誌 Vol.19 No.S
Organic production practices varied among producers. Generally, organic producers were relying on imported input materials such as organic compost and liquid fertilizer even more than conventional producers. Very few organic farmers had composting facilities or sites for the own supply of compost in need. The productivity of organic kiwifruit orchard (92%) was not as low as that of conventional while the net income (243%) was more than double that of conventional. This was mainly attributed to high farm gate price of organic fruits, low paid labour use and electricity. As a consequence, organic kiwifruit production seems to become a feasible option in Korea. However, high dependence on imported farming material, fuel and labour for too frequent liquid fertilizer spray should be addressed to achieve long term sustainability of organic kiwifruit production.
Cho, Y.,Nicholas, P. Korean Association of Organic Agriculture 2011 韓國有機農業學會誌 Vol.19 No.S
This study compares and contrasts the Wales and England Organic Action Plans (WOAP and EOAP) and a Korean regional Life-Food Development Plan (KLFDP) in order to facilitate the development of the organic sector in Korea. Early action plans, for example, the first WOAP (1999) focused support on developing the supply of organic products whereas later action plans focused on marketing and consumer. OAPs may not only provide specific issue-solving roles by proposing new policy measures but also perform a regulatory role as a controller for organic sector development as a whole. The current KLFDP seems to stick to the former role but hardly has the latter role such as setting priorities, harmonizing various conflicting policy measures and factors and performing evaluation process for further progress. To secure better harmonized and sustainable development of Korean organic farming sector, constructing comprehensive national-level organic action plan, which has policy developing, implementing, regulating, evaluating and evolving functions, might be the most efficient choice.
The distribution, characteristics and utilization of Korean native Actinidia Genus
Cho, Y.,Cho, H.,Park, M. Korean Association of Organic Agriculture 2011 韓國有機農業學會誌 Vol.19 No.S
A. arguta is found nationwide whether the altitude is low or high if good drainage is achieved with plenty of water. The distribution of A. polygama seems to be more limited to higher altitude than A. arguta so it can be found in deep valley of highland even in Mt. Halla. A. kolomikta seems rather limited to colder area than A. arguta to Mt. Jiri to the south. Meanwhile, A. rufa is very confined to southern islands including Jeollanamdo and Jeju islands. Some institutes still continue to utilize Korean native Actinidia plants commercially since early 1980's. More collaborative efforts are needed for further development of these plants nationwide.
Policy measures and necessities for small scale organic farming in the EU
Cho, Y.,Nicholas, P. Korean Association of Organic Agriculture 2011 韓國有機農業學會誌 Vol.19 No.S
Most of European countries have certain support measures of small holder organic producers in their policy system but they need to be more positive with this issue. Recent EU regulations and any other governmental organic farming measures are hardly emphasising on small holders' issues except a few measures. In order to secure small producer organic farming, the extensive efforts are needed. Developing new logos and differential support system for small producer organic at every aspects from production, marketing and public procurement level will become more positive actions to take, for example.
Activating Injury-Responsive Genes with Hypoxia Enhances Axon Regeneration through Neuronal HIF-1α
Cho, Y.,Shin, J.,Ewan, E.,Oh, Y.,Pita-Thomas, W.,Cavalli, V. Cell Press 2015 Neuron Vol.88 No.4
Injured peripheral neurons successfully activate a proregenerative transcriptional program to enable axon regeneration and functional recovery. How transcriptional regulators coordinate the expression of such program remains unclear. Here we show that hypoxia-inducible factor 1α (HIF-1α) controls multiple injury-induced genes in sensory neurons and contribute to the preconditioning lesion effect. Knockdown of HIF-1α in vitro or conditional knock out in vivo impairs sensory axon regeneration. The HIF-1α target gene Vascular Endothelial Growth Factor A (VEGFA) is expressed in injured neurons and contributes to stimulate axon regeneration. Induction of HIF-1α using hypoxia enhances axon regeneration in vitro and in vivo in sensory neurons. Hypoxia also stimulates motor neuron regeneration and accelerates neuromuscular junction re-innervation. This study demonstrates that HIF-1α represents a critical transcriptional regulator in regenerating neurons and suggests hypoxia as a tool to stimulate axon regeneration.
Cho, Y.,Lee, J.,Nguyen, T.T.H.,Bae, J.W.,Yu, T.,Lim, B. Korean Society of Industrial and Engineering Chemi 2016 Journal of industrial and engineering chemistry Vol.37 No.-
<P>We describe a facile synthetic route to alpha-Co(OH)(2) nanostructures by heating a solution containing CoCl2, ethylene glycol, and oleylamine. Electron microscopy and X-ray diffraction analyses revealed that flower-like nanostructures of a-Co(OH)2 were formed by assembly of thin alpha-Co(OH)(2) nanosheets. These nanostructures exhibited high activity for electrochemical water splitting with a current density comparable to that obtained on the commercial Pt wire electrode. In addition, these flower-like alpha-Co(OH)(2) nanostructures showed specific capacitance as high as 440 F/g at a current density of 1 A/g and excellent stability without any noticeable loss in capacitance after 5000 cycles of the galvanostatic charge-discharge test. (C) 2016 Published by Elsevier B.V. on behalf of The Korean Society of Industrial and Engineering Chemistry.</P>
A Study of Predicting Method of Residual Stress Using Artificial Neural Network in $CO_2$Arc welding
Cho, Y.,Rhee, S.,Kim, J.H. The Korean Welding and Joining Society 2001 International journal of Korean welding society Vol.1 No.2
A prediction method for determining the welding residual stress by artificial neural network is proposed. A three-dimensional transient thermo-mechanical analysis has been performed for the $CO_2$ arc welding using the finite element method. The first part of numerical analysis performs a three-dimensional transient heat transfer analysis, and the second part then uses the results of the first part and performs a three-dimensional transient thermo-elastic-plastic analysis to compute transient and residual stresses in the weld. Data from the finite element method are used to train a back propagation neural network to predict the residual stress. Architecturally, the fully interconnected network consists of an input layer for the voltage and current, a hidden layer to accommodate the failure mechanism mapping, and an output layer for the residual stress. The trained network is then applied to the prediction of residual stress in the four specimens. It is concluded that the accuracy of the neural network predicting method is fully comparable with the accuracy achieved by the traditional predicting method.
Pore size effect on the formation of polymer nanotubular structures within nanoporous templates
Cho, Y.,Lee, C.,Hong, J. Elsevier 2014 Colloids and surfaces. A, Physicochemical and engi Vol.443 No.-
Nanotubular structures have recently received much attention due to their potential applications in biosensors, drug delivery systems, electronic devices, and many others. The layer-by-layer (LbL) deposition technique on 3-dimensional templates has been one of the most popular methods for the formation of nanotubular structures. Any size, shape, and composition template can be utilized and the desired amount of various materials can be readily incorporated within the thin film geometry with nanoscale control. Therefore, the morphological features of those materials can easily be tuned by varying the structural properties of templates. However, LbL deposition within a confined geometry actually shows somewhat different results due to the geometrical restriction, which is still not fully understood so far. In the present study, in order to investigate such a template effect on the LbL process, we utilized a cylindrical nanoporous anodic aluminum oxide (AAO) structure as a template for the LbL process, yielding polymer nanotube structures. By varying the pore size of the porous templates, we determined the LbL process within porous structures was strongly governed by the geometrical characteristics of the utilized templates.