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        검색결과 8

        1.
        2023.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This research aims to validate the effectiveness of the "Specialized Entrepreneurship University Program," which was conducted as part of government entrepreneurship support initiatives from 2018 to 2022. Based on previous studies, a research model was derived consisting of three laboratory entrepreneurship support factors that influence program satisfaction and entrepreneurial outcomes (infrastructure support, educational mentoring support, and business linkage support). Surveys were collected and analyzed from 126 laboratory entrepreneurship firms participating in the program, and empirical analysis of the research model was conducted using SPSS 23.0 statistical software. The analysis results indicated that the three variables, namely infrastructure support, educational mentoring support, and business linkage support, were significant factors affecting program satisfaction, and program satisfaction was confirmed to influence entrepreneurial outcomes. Furthermore, it was found that the three business operation factors indirectly influenced entrepreneurial outcomes by partially mediating program satisfaction. This study is considered significant as an empirical study for the initial stage of the second-phase program enhancement, verifying the effectiveness of laboratory entrepreneurship support factors. The findings can be applied to similar government entrepreneurship support initiatives and contribute to the effective strategy and planning of stakeholders involved. The limitations of this study include the need for further research on the perception of the extent to which it contributes to entrepreneurial outcomes, emphasizing caution in interpreting the research model, and the necessity for expanding the survey population and improving survey items in future research.
        4,000원
        2.
        2017.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구에서는 TiO2 nanotube 광촉매의 고도산화처리능을 비교하기 위해서 OH 라디칼 생성 력을 평가하고자 하였다. 자외선 조사에 따른 Probe compound인 4-Chlorobenzoic acid (pCBA)의 농 도 감소에 따라 OH radical 생성량을 산정하는 방법으로 광촉매 효율을 평가하였는데, TiO2 nanotube 표면에서의 전자의 흐름을 원활하게 하기 위하여 전기적 에너지를 주었을 시 광촉매 효율의 증가 가능 성 또한 확인하고자 자외선 조사 시 전류밀도를 인가하는 방법으로 실험을 진행하였다. 실험에 사용된 TiO2 nanotube는 전극효과를 부여하기 위해 양극산화법으로 티타늄판을 이용하여 제조하였으며, pCBA 용액에는 전도도를 부여하기 위하여 NaCl을 첨가하여 전해질로 사용하였다. 정전류 정전압 조건하에서 자외선조사 실험을 진행하였으며, 전류가 흐르는 광촉매에 자외선 조사 시 OH 라디칼 생성량은 광촉매 없이 자외선만 조사하였을 때에 비해 약 5.6배, TiO2 광촉매와 함께 자외선을 조사하였을 보다 약 2.2 배 증가하였다. 결과적으로 광촉매반응에 전기적 에너지를 부여하였을 시 시너지효과를 가져올 수 있는 가능성을 확인할 수 있었다.
        4,000원
        3.
        2017.04 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구에서는 고분자 전해질 연료전지(PEFC)의 전해질막의 화학적 안정성의 향상을 위하여 3-mercaptopropyl silica gel (3MPTSG)과 poly(arylene ether sulfone)(SPAES)을 이용하여 복합막을 제조하였다. 일반적으로 방향족 탄화수소계 고분자막은 전극 부분에서 발생한 라디컬에 의한 고분자 산화가 일어나 내구성이 감소하게 되는데 이는 대부분 주쇄에 포함 된 에테르 기 부분의 취약성으로 발생한다. 본 연구에서는 이러한 라디칼에 의한 고분자 주쇄의 산화를 방지하기 위해 친수 성의 무기물 입자를 도입하여 이온전도도 감소율을 최소화하고 산화안정성을 높이고자 하였다. 복합막들의 물성 및 전기화학 적 특성을 평가하기 위해 접촉각, FT-IR, 이온전도도, 이온교환용량(IEC), 함수율, 열안정성 등을 수행하였다. 실리카의 함량 이 0에서 0.5%까지 증가함에 따라 이온전도도 및 함수율은 각각 10% 감소한 0.076 S cm-1 및 16% 감소한 24.6 wt%이었으 나, 산화안정성은 10% 향상되었다.
        4,000원
        4.
        2015.06 구독 인증기관 무료, 개인회원 유료
        Providing dogs with a natural diet consisting of raw, natural food is recommended for optimum health and longevity. We are aimed to provide the available knowledges about the recommended natural food and home made recipes of natural diets through literature review. As the results, we reviewed the efficacy, nutrients composition, daily feeding dose, recommended natural foods, home made recipes of natural diets etc. All-natural diets are also called raw diets or barf diets (BF). The common theme of these diets is that they feed raw human grade ingredients. While the actual contents will vary in some cases, depending on the health needs of a particular dog, the quality of the food products does not change. Everything is raw and human grade ingredient. Conclusionally, natural provides nutritionally sound and species appropriate diets to be fed to dogs at any stages of life varied through the correct corresponding portions from puppies to seniors, during pregnancy and lactation. It is also suitable for any breed from toy to giant. There is strong research based evidence highlighting the benefits of natural diets diet free of contaminants seen in many foods today for companion dogs.
        4,000원
        5.
        2013.12 KCI 등재 서비스 종료(열람 제한)
        This paper investigates Multiple Sluicing in English. Nishigauchi (1998) and Lasnik (2013) analyze Multiple Sluicing as a construction in which the first wh-phrase escapes from the deletion site by leftward wh-movement, whereas the second remnant undergoes rightward movement, and then TP deletion follows. Lasnik specifically argues that the rightward movement of the second remnant is extraposition. However, these analyses cannot explain why the second remnant is typically [+wh]. To solve this problem, this paper shows that the second remnant undergoes a two-step rightward movement; it first moves to a vP adjunction position via extraposition, and then it undergoes focus movement to Foc(us)P. To explain the upward boundedness of the second remnant in Multiple Sluicing, we propose that the rightward movement can be iterative insofar as it satisfies the Order Preservation (Fox and Pesetsky 2003, 2005; Sabbagh 2007). We suggest that when the second remnant in Multiple Sluicing undergoes focus movement, it does not make an order contradiction; therefore, the two-step movement of the second remnant in Multiple Sluicing constructions is allowed.
        6.
        2013.07 서비스 종료(열람 제한)
        Sub-cellular proteomics provide insight into the molecular mechanisms of plant cell modulation of protein accumulation in intracellular compartments regarding various perturbations, and thus provides rectified knowledge about signal transduction in organelles. Mitochondria are important organelles for cellular respiration within the eukaryotic cell and serve many important functions including vitamin synthesis, amino acid metabolism and photorespiration for the cell as well. To define the mitochondrial proteome of the roots of wheat seedling, a systematical and targeting analysis were carried out on the mitochondrial proteome from 15 days-old wheat seedling roots material. Mitochondria were isolated by Percoll gradient centrifugation; and extracted proteins were separated and analyzed using Tricine SDS-PAGE along with LTQ-FTICR mass spectrometry. From the isolated mitochondrial proteins, a total of 140 proteins were identified. The identified proteins were functionally classified into 12 classes using ProtFun 2.2 server based on cellular roles, Proteins were shown to be involved in including amino acid biosynthesis (17.1%), biosynthesis of cofactors (6.4%), cell envelope (11.4%), central intermediary metabolism (10%), energy metabolism (20%), fatty acid metabolism (0.7%), purines and pyrimidines (5.7%), regulatory functions (0.7%), replication and transcription (1.4%), translation (22.1%), transport and binding (1.4%), and unknown (2.8%). These results indicated that many of the protein components present and functions of identified proteins are common to other profiles of mitochondrial proteomes performed to date. The data presented here will begin to reveal a better understanding the characteristics of proteins and metabolic activity in mitochondria in wheat roots.
        7.
        2010.04 KCI 등재 서비스 종료(열람 제한)
        Wheat-rye translocation lines were developed to produce a main crop resistant to biological and physical stress. 'Chaupon' rye contains 2RL chromatin to harbor resistance genes for powdery mildew and leaf rust. In order to identify chromosome 2RL-derived rye proteins and 2RL-perturbed proteins in wheat-rye translocation lines, the gel-based proteomics was employed with 'Coker797' (non-2RL), 'Hamlet' (2RL) and 'near-isogenic line' (stabilized 2RL). The leaf proteome was resolved on 2D-gel, resulting in 216 spots in a final selection. A total of 90 proteins were identified with the identification success rate of 42%. The identified proteins were classified by functional annotation: metabolism (64%), cellular process (5%), translation (2%), regulatory function (1%) and hypothetical (28%). The proteins belonged to metabolism were subdivided into carbohydrate metabolism (36%), energy metabolism (35%), metabolism of lipid, amino acid, other amino acid and biosynthesis of secondary metabolites (each 6%) and others (5%). A total of 53 proteins were differentially expressed, in which β-glucosidase, in particular, originated from the chromosome 2RL of rye, was exclusively appeared in NIL. In addition, small Ras-related GTP binding-protein assigned to wheat was predominantly found in 2RL rye chromatin-possessing NIL. These results suggest that the acquired genetic traits obtained from rye 2RL enhance the resistance to biotic and abiotic stress in wheat-rye translocation lines by altered the proteome expression. In leaf metabolome analysis, 11 predominant metabolites containing trans-aconitate, glutamate, and betaine were identified by 1H-NMR-based metabolite fingerprinting. The overall metabolites pattern of NIH appears to be closer to Coker797 rather than Hamlet. Thus, the metabolic phenotype of NIL was not so much lineated from Hamlet contrast to proteomic phenotyping.
        8.
        2010.04 KCI 등재 서비스 종료(열람 제한)
        To better understanding the function of the luminal sub-organelles within the thylakoid network, we have carried out a systematical analysis and identification of the lumenal proteins in the thylakoid of wheat by using Tricine / 1D-PAGE, and LTQ-ESI-FTICR mass spectrometry followed by SWISS-PROT database searching. We isolation and fractionation these membrane from fully developed wheat leaves using a combination of differential and gradient centrifugation couple to high speed ultra-centrifuge. After collecting all proteins to eliminate possible same proteins, we estimated that there are 407 different proteins including chloroplast, chloroplast stroma, lumenal, and thylakoid membrane proteins excluding 20 proteins, which were identified in nucleus, cytoplasm and mitochondria. A combination of these three programs (PSORT, TargetP, and TMHMM) was found to provide a useful tool for evaluating chloroplast localization, transit peptide, transmembranes, and also could reveal possible alternative processing sites and dual targeting. Finally, we report also sub-cellular location specific protein interaction network using Cytoscape software, which provides further insight into the biochemical pathways of photosynthesis. The present work helps understanding photosynthesis process in wheat at the molecular level and provides a new overview of the biochemical machinery of the thylakoid in wheat.