• Title/Summary/Keyword: 흡수 능력

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Effect of Number of Washings with Solvents on Quality of Dried Soymilk Residue (용매의 세척회수(洗滌回數)가 건조비지의 품질에 미치는 영향)

  • Kim, Woo-Jung;Sohn, Jung-Woo;Chung, Sung-Soo
    • Korean Journal of Food Science and Technology
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    • v.17 no.2
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    • pp.95-100
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    • 1985
  • Effects of number of washings with solvents on drying rates and physicochemical properties of dried soymilk residues(SMR) were investigated. The dried soymilk residue was prepared by washing the residue with acetone or ethanol, followed by drying at $60^{\circ}C$. Increase of number of washings with a residue/solvent ratio of 1/1.5 resulted in an increase in drying rate and in protein content of the residue while the lipid content decreased. The brightness of the dried residue and the properties of water and oil absorption were also improved by washing with acetone which was advantageous to ethanol for all of the properties measured. Washings more than 3 times with acetone or 2 times with ethanol were found to be less effective in terms of quality improvement. The more addition of dried residue into the mixture of SMR-wheat flour resulted in a linear increase of water and oil absorption characteristics.

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A study of knowledge transfer effects in Korean venture startups : The role of knowledge origins, absorptive capacity, government, and venture capital (한국 벤처부문의 지식이전 효과에 대한 진단 : 지식속성, 흡수능력, 정부 및 시장의 복합적 효과)

  • Sohn, Dong-Won
    • Journal of Technology Innovation
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    • v.18 no.1
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    • pp.21-51
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    • 2010
  • This paper examines the knowledge transfer effect in Korean venture systems. Existing literature has provided rich evidence of the effect of knowledge transfer, but we do not have micro mechanisms inherent in the process of knowledge transfer. This paper argues that knowledge transfer effects vary depending on the knowledge types, sources, and legacy. This paper also tests role of the two important pillars in knowledge transfer of Korean venture startups; venture capital and government. This paper also examines the role of absorptive capacity in the knowledge transfer process. With 1,862 sample of Korean venture firms, this study employed three methods depending on 3 different types of dependent variables: hierarchical regression, logistic regression, and survival analysis. Main findings include that 1) knowledge characteristic itself and its alignment with industry influence the knowledge transfer effects, 2) government support has a negative effect on financial performance of venture firms, but does not have significant interaction effect on knowledge transfer, and 3) the absorptive capacity of each firm moderates the knowledge transfer effects. The theoretical and practical implications are discussed.

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Characteristics of Cd Accumulation and Phytoremediation among Three Half-sib Families of Betula schmidtii (박달나무의 반형매 가계간 Cd Phytoremediation과 축적 특성)

  • Oh Chang Young;Lee Jae Cheon;Han Sim Hee;Kim Pan Gi
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.6 no.3
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    • pp.204-209
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    • 2004
  • The main purpose of this study was to select a B. schmidtii population which has high cadmium tolerance and remediation and to determine the difference of cadmium uptake patterns among populations. One-year-old B. schmidtii seedlings were treated with 0, 0.4, 0.8mM CdSO$_4$. 3/8H$_2$O for two months. Cadmium concentrations in different positions of stem and cadmium concentrations and contents of leaves, stems and roots were analyzed. Also soil cadmium concentrations were analyzed. B. schmidtii was highest in root and lowest in shoot tip, showing a gradual decrease from root to shoot tip. The shoot to root Cd concentration ratios were over 1.26. It is concluded that B. schmidtii has good potential for phytoextraction as a shoot accumulator, which can be used for remediation of cadmium-contaminated areas. But tolerance differs between populations. Therefore B. schmidtii should be used as a means of phytoremediation after selection for Cd tolerance is performed.

A study of the relationship of Entrepreneurship, Absorptive capacity and Creative product (기업가정신, 흡수역량과 창의성과 간의 관계에 관한 연구)

  • Han, Byung-Cheol;Cho, Yong-Hwa;Song, Chan-sub;Kim, Eun-Kyeong;Lee, Sun-Kyu
    • Journal of Digital Convergence
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    • v.16 no.10
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    • pp.187-197
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    • 2018
  • To improve Organization's creative product by using external knowledge and information. This study suggests the procedure among Entrepreneurship, absorptive capacity(Potential absorptive capacity, Realized absorptive capacity), Creative product. To the empirical analysis of the theoretical relationship, The research model was set up through literature research. method Empirical analysis was conducted using total 487 questionnaires from worker of electronic industry in Kyung-buk region. the results of this study are as followings; First, Entrepreneurship related positively to Creative product. Second, Creative product was affected through process in order of Entrepreneurship, Potential absorptive capacity, Realized absorptive capacity. This results contribute to the improvement of organization's Creativity and the utilization of external knowledge.

Effects of Absorptive Capacity on Technology Innovation and Commercialization Capacities and Management Performance (흡수역량이 기술혁신역량 및 기술사업화 역량과 경영성과에 미치는 영향)

  • Kim, Young-Ki;Park, Seong-Taek
    • Journal of the Korea Convergence Society
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    • v.9 no.12
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    • pp.217-225
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    • 2018
  • This study analyzes the effects of the absorptive capacity on the technology innovation and commercialization capacities and the management performance. Based on previous studies, the absorptive capacity is sub-classified into the exploratory absorptive capacity and the exploitative absorptive capacity, which are set as independent variables, to analyze their effects on the technology innovation and commercialization capacities. In short, the absorptive capacity has positive effects on the technology innovation and commercialization capacities. In addition, the technology innovation capacity and the technology commercialization capacity have positive effects on the management performance. The findings confirm that the absorptive capacity is an important factor impacting on the corporate innovation, and suggest that businesses should recognize the importance of the absorptive capacity as a guideline for developing their strategies for technological innovation.

Vibration control characteristics of epoxy laminate beam utilizing shape memory polyurethane (형상기억 폴리우레탄을 이용한 epoxy laminate beam의 진동제어 특성에 관한 연구)

  • 양재흥;신규철;정용찬;조재환;전병철
    • Proceedings of the Korean Fiber Society Conference
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    • 2001.10a
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    • pp.326-326
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    • 2001
  • Epoxy/glass fiber 복합재는 높은 strength와 stiffness를 갖는 장점이 있지만 impact strained energy를 효율적으로 발산시킬 수 있는 mechanism을 가지고 있지 않기 때문에 damping 능력이 떨어진다 Impact strength와 damping 성능을 증가시키기 위해 사용되어지고 있는 방법은 형상기억 고분자를 이용한 것으로 상대적으로 높은 strength와 impact에 대한 흡수 및 발산을 가지고 있다 형상기억 고분자는 glass transition temperature(G$_{g}$) 근처에서 높은 damping 능력을 가지고 있다. (중략)

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Material Tests for Module Type Crash Cushion (모듈타입 충격흡수장치를 위한 재료실험)

  • Ko, Man-Gi;Kim, Kee-Dong;Sung, Jung-Gon;Kim, Jin-Man
    • International Journal of Highway Engineering
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    • v.10 no.1
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    • pp.87-95
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    • 2008
  • One way to shield an atypical structure to secure the occupant safety of an impact vehicle is to stack energy absorbing material modules around the structure. To be applicable to a cushion module, material must have enough energy absorbing capabilities while satisfying the safety requirements of the vehicle occupant. Static compression test of the potential materials gives a good indication which material is good for a slacking module. This paper presents the mechanical properties that a cushion material must have to satisfy the safety requirements. Static tests are performed for Quard-Guard system module, sand bag, recycled tires, Geo-Container, Geo-Cell and Expanded Polystyren (EPS) Blocks. Static test results are discussed and EPS block of $30kg/m^{3}$ density showed good potential for a cushion module. To check the dynamic effect of EPS block, drop tests have been made up to 35.6km/h impact speed. Drop test results are compared with static test results and no appreciable difference was found. To improve the EPS module property, making holes to the block is suggested and drop test are performed for the modified blocks. From the drop test results, design values are suggested.

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The effect of international entrepreneurial orientation of Chinese manufacturing export Company on export performance: the mediating effect of absorption capacity (중국 제조업 수출기업의 국제 기업가 지향성이 수출 성과에 미치는 영향: 흡수 능력의 매개효과를 중심으로)

  • Chen, Yuyi;Yu, Seunghun
    • Korean small business review
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    • v.43 no.3
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    • pp.91-117
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    • 2021
  • The purpose of this study is to study the effect of internatioanl entrepreneurial orientation of small and medium-sized Chinese manufacturing companies on export performance. A total of 183 corporate data were used for empirical analysis for Chinese manufacturing export companies. In summary, first, international entrepreneurial orientation was shown to have a significant positive effect on export performance, second, international etrprenurial orientation was shown to have a significant positive effect on absorption capacity, and third, the stronger environmental dynamics and network capacity, the stronger international business orientation and export ability. The implications of this study are summarized as follows. It suggests that the more innovative, enterprising and risk-taking Chinese SMEs are, the better their export performance and the better their ability to absorb foreign knowledge. It also suggests that small business managers must continue to strengthen their network capabilities to improve export performance through international entrepreneurial orientation, and this relationship is further strengthened in a dynamic environment. It also suggests that the impact of firm's absorption capacity on export performance will weaken over time.

Design and Fabrication of Semi-cylindrical Radar Absorbing Structure using Fiber-reinforced Composites (섬유강화 복합재료를 이용한 반원통형 전자파 흡수구조의 설계 및 제작)

  • Jang, Hong-Kyu;Shin, Jae-Hwan;Kim, Chun-Gon;Shin, Sang-Hun;Kim, Jin-Bong
    • Composites Research
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    • v.23 no.2
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    • pp.17-23
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    • 2010
  • The stealth technology can increase the survivability of aircrafts or warships and enhance the capability of mission completion in hostile territory. The purpose of this paper is to present the low observable structure with curved surfaces made by fiber-reinforced composites and to show the possibility of developing omnidirectional stealth platforms for military applications. In this study, we developed a radar absorbing structures(RAS) based on a circuit analog absorber to reduce the radar cross section(RCS) of an object with curved surfaces. Firstly, the RAS with a periodic square patterned conducting polymer layer was designed and simulated using a commercial 3-D electromagnetic field analysis program. Secondly, the designed semi-cylindrical structure with low RCS was fabricated using fiber-reinforced composites and conducting polymer. To make the periodic pattern layer, acts as resistive sheet, the intrinsic conducting polymer paste containing PEDOT with a polyurethane binder was used. Finally, the radar cross section was measured to evaluate the radar absorbing performances of the fabricated RAS by the compact range facility in POSTECH.

Enhancement of $SO_2$ Sorption of $CuO/{\gamma}-{A1_2}$O$_3$ Sorbent by Additives (첨가제에 의한 $CuO/{\gamma}-A1$$_2$O$_3$ 흡수제의 $SO_2$ 제거능력의 향상)

  • 정상문;유경선;김상돈
    • Proceedings of the Korea Society for Energy Engineering kosee Conference
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    • 1995.11a
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    • pp.38-41
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    • 1995
  • 화석연료의 연소에 의하여 방출되는 SO$_2$ 와 NO 에 의한 대기오염의 심각성은 이미 잘 알려져 있으며 그에 따른 배출규제 또한 강화되고 있다. 최근에는 탈황과 탈질을 동시에 처리하는 동시 탈황탈질 공정의 연구가 진행되고 있다. 동시제거 공정은 주로 흡수제/촉매를 토대로 개발되고 있으며 산화구리가 담지된 알루미나 (CuO/${\gamma}$-A1$_2$O$_3$) 흡수제/촉매는 SOx, NOx 동시제거에 효과적인 물질로 알려져 있다. 담지된 CuO 와 담체 A1$_2$O$_3$는 SO$_2$$O_2$ 존재하에 반응하여 CuSO$_4$$Al_2$(SO$_4$)$_3$ 가되며 [1] CuSO$_4$ 와 미반응된 CuO 는 NO 제거를 위한 촉매로서의 역할을 하게 된다 [2].

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