• 제목/요약/키워드: Absorptive

검색결과 382건 처리시간 0.025초

고흡수성(高吸水性) Polymer와 Cellulose의 흡수특성(吸水特性) 비교(比較) (The Comparison of Absorption Characteristics between High Absorbent Polymers and Cellulose)

  • 양인;안원영
    • Journal of the Korean Wood Science and Technology
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    • 제18권2호
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    • pp.36-48
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    • 1990
  • This experiment was carried out to improve the quality of high absorbent polymer which has excellent absorptivity and water retention compared to pulp and absorption sheet, through absorption characteristics-absorptive power, water retention, absorption rate, gel strength, pH, particle size, and moisture content. - of six polymers, namely, anionic polyacrylamide, cationic polyacrylamide, polyacrylic, acid polyvinyle alcohol 500, and 1500, and a-cellulose. and to examine the possibility of substitution of amide groups for carboxyl group and/or hydroxyl group which were commercial high absorbent polymer by comparing the absorption characteristics of the polymers. Polyacrylamide has high absorptive power and water retention, but has low gel strength and poor absorption rate. The rest of polymers were similiar to ${\alpha}$-cellulose in every respect. Thus, polyacrylamides could be replaced with polyacrylic acid and polyvinyl alcohol which are presently a high absorbent polymers. In comparing the absorption characteristics and the absorptive power of the polymers-anionic polyacrylamide, cationic polyacrylamide, polyacrylic acid, polyvinyle alcohol. a-cellulose-the absorptive power was in inverse proportion to the gel strength and absorption rates, affected by the particle size and pH change.

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지식 경영 활동의 혁신 역량으로의 연계 : IT 서비스 산업 중심으로 (Linking Knowledge Management Activities to Innovation Capability : Focused on IT Service Industry)

  • 김병수;허용석;한인구;이희석
    • 지식경영연구
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    • 제11권1호
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    • pp.97-113
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    • 2010
  • Given the large investment and prevalence of knowledge management (KM) in organizations, it has become important to analyze the effects of KM activities on organizational performances. A theoretical framework is proposed to investigate the impact of KM activities on innovation capabilities in the IT service industry. This study considers KM activities as the major determinant that enhances absorptive capacity. KM activities enhance employees'ability to obtain external knowledge, resulting in increasing intellectual capital. Thus, this study proposes that absorptive capacity plays a mediating role between KM activities and innovation capability. Additionally, this study investigates the key antecedents of KM activities that promote employees' knowledge sharing. Based on prior studies on KM, this study posits KM team activities and top manager support as KM activities. The proposed research model was tested by using survey data collected from 556 employees in the IT service industry. PLS (partial least squares) was employed for the analysis of the data. The findings of this study showed that KM activities and absorptive capabilities play a significant role in enhancing service innovation and process innovation in the IT service industry. The results also shed light on the mediating role of absorptive capacity between KM activities and innovation capability. Moreover, both KM team activities and top manager support serve as the salient antecedents of promoting employees' knowledge sharing.

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기업의 흡수역량과 정보기술 활용도가 혁신에 미치는 영향 (The Impact of the Absorptive Capacity and IT Usage on Firms' Innovation)

  • 배준철;이상용
    • Journal of Information Technology Applications and Management
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    • 제20권1호
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    • pp.173-195
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    • 2013
  • This study is to analyze the impact of the absorptive capacity and information technology (IT) on firms' innovation. The absorptive capacity is measured by R&D investment intensity, R&D manpower concentration, and the firm's size. We try to see the interaction effects between the absorptive capacity and IT usage on firms' innovation. We also look into the differences of the impacts between manufacturing industry and service industry as well as IT industry and service industry. We found that IT and R&D intensity have stronger interaction effect on innovation in manufacturing industry than in service industry, which shows that IT plays a more important role in the accumulation of knowledge in R&D activity in manufacturing industry. Contrarily, in service industry, IT and R&D manpower concentration has significant interaction effects on innovation. This means that the role of IT in service industry is sharing knowledge and experiences among employees in service industry. The interaction effect between firm's size and IT has positive impact on innovation in manufacturing industry, while it has negative impact on innovation in service industry. Finally, we found that the interaction effect is statistically significant in non-IT industry, while it is not statistically significant in IT industry.

축소모형법을 이용한 흡음재와 확산체 배치조건별 교실의 음향성능 측정 및 평가 (The Measurements and Evaluations on the Configurations of Absorptive and Diffusing Treatments in Classrooms using a Scale Model)

  • 최영지
    • 교육시설 논문지
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    • 제20권1호
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    • pp.37-44
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    • 2013
  • The present study examines the effects of periodic type diffusers for producing the preferred acoustics for speech and determines the more successful configurations of sound-absorbing and diffusing treatments for achieving good acoustics in classrooms. The measurements were carried out in a 1/10 scale model classroom systematically adding diffusers to one or more of four surfaces of the room. A total of 13 combination of diffusers with absorptive treatments were investigated. Adding diffusers on the ceiling were more effective to increasing the early-arriving reflection energy($G_{50}$) than adding absorptive materials on the entire ceiling. The late arriving reflection energy($G_{late}$) was decreased with increasing amounts of diffusing treatments of upper front or rear wall and this resulted in achieving higher early-to-late ratios($G_{50}$). Adding diffusers on the upper front wall($AC_{100}DUFW_{26}$) achieved more uniform acoustical conditions over the receiver positions than adding diffusers on the upper rear wall($AC_{100}DUFW_{26}$). Adding diffusers on the ceiling and absorptive materials on the lower front wall($AC_{75}DC_{25}ALFW_{26}$) achieved better acoustical conditions than adding the absorptive materials on the entire ceiling and lower front wall($AC_{100}ALFW_{26}$).

The Role of Training and Absorptive Capacity in Mediating Human Capital Dimensions and Organizational Performance: Evidence from Pakistan

  • BHUTTO, Sana Arz;JAMAL, Yasir;RAFIQ, Asim;MEHMOOD, Kashif;HUSSAIN, Munir;ALI, Amjad
    • The Journal of Asian Finance, Economics and Business
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    • 제8권12호
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    • pp.473-484
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    • 2021
  • This study aims to examine the role of training and absorptive capacity as a mediator to examine the impact of human capital dimensions on the performance of an organization. This study employs the quantitative approach for analysis. A sample of 208 respondents was collected from the textile factories based in Karachi and Faisalabad. Data was analyzed using the PLS-SEM technique. PLS-SEM algorithm was used to check the validity and reliability of the data. PLS-SEM bootstrapping was used for studying the impact. The results show that the skills have an insignificant impact on organizational performance. Education and skills have an insignificant indirect impact on the performance of an organization. The research findings show that the human capital dimensions are full and partially mediated via absorptive capacity and training. The findings revealed that if we implement one by one dimension of human capital then it will not cause any increase in the organization's performance but if we implement all dimensions then it results in optimal performance. Thus, this study suggests adopting effective training techniques and creating absorptive capacity in an organization to increase the performance of an organization. The findings of this study significantly contribute to the existing body of knowledge.

Increasing Furniture Manufacturing SMEs' Business Performance Through Absorptive Capacity and Product Quality

  • ONGKOWIJOYO, Gracia;KOESMONO, Teman;WULANI, Fenika
    • 유통과학연구
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    • 제20권12호
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    • pp.43-57
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    • 2022
  • Purpose: This study discusses the phenomenon of the uncertain sustainability of SMEs in developing countries. SMEs face various challenges in the dynamics of a competitive environment, which threaten their growth and sustainability. This study aims to address a research gap between company's internal resources, in the form of absorptive capacity, and its business performance. By using product quality as a mediator, which has never been studied before, this research presents a novelty to answer the existing research gap using the Resource Based Theory (RBT) perspective. Research design, data and methodology: Using quantitative method, data are collected from 164 respondents, who are owners or managers of furniture manufacturing SMEs in Gerbangkertosusila Area, East Java, Indonesia. The data are analyzed using Partial Least Square (PLS) - Structural Equation Modeling (SEM). Results: The findings show that absorptive capacity has a direct and significant effect on business performance and indirectly through product quality. Conclusion: Furniture manufacturing SMEs are advised to focus on developing absorptive capacity reflected in good product quality, in order to improve their business performance. This is especially important to survive the crisis caused by the Covid-19 pandemic. Thus, the results of this study contribute to the development of RBT, and there are several suggestions for further research.

패널문턱회귀를 활용한 외국인 직접투자와 현지국 흡수능력의 관계 연구 (A Study on the Relationship between Foreign Direct Investment and the Absorptive Capacity of a Host Country Using Panel Threshold Regression)

  • 가오투장;황지영;황윤섭;유천
    • 무역학회지
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    • 제47권4호
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    • pp.89-102
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    • 2022
  • This study is designed to investigate the effect of inflow FDI on the host country's economic growth and the role of absorptive capacity in this relationship. Eight developing countries in East Asia, including Mongolia, Indonesia, Malaysia, Myanmar, the Philippines, Thailand, Vietnam, and Cambodia, are analyzed. Year data from 2000 to 2018 are used. Based on the study of Hansen (1999), the panel threshold effect model is used, and human capital, R&D, and infrastructure are set as absorptive capacity by referring to Wang and Hwang (2013). The analysis results are as follows. It is confirmed that FDI has a positive effect on the economic growth of the host country, and absorption capacity strengthens the relationship between FDI and economic growth in a positive direction. At this time, it appears that a threshold exists for the moderating effect of the absorptive capacity. It presents useful implications for economic growth in developing countries.

슬래브궤도의 소음저감을 위한 흡음재의 성능에 관한 연구 (The study of absorbing material performance for the noise mitigation of slab track)

  • 김진호;이광도;안광열;전우상
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2007년도 춘계학술대회 논문집
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    • pp.1044-1049
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    • 2007
  • The construction of concrete slab track system is increased because the system has advantages which are maintenance free and so on, the other side, the system has weak points such as increase of the cost of the early stage construction and noise levels. The increment of noise is due to the reflection of generated noise on the slab tracks. Therefore the acoustic-absorptive materials are considered to reduce noise level. It has been made clear that acoustic-absorptive materials are effective for reducing the wheel/rail noise on slab tracks. The important performance of the acoustic-absorptive material is absorption rates and absorption rates are verified for the considered absorber elements using acoustic duct method. In addition, the required provisons for installing acoustic-absorptive block on slab tracks are considered.

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흡음재 구성방법에 따른 방음벽의 흡음특성에 관한 연구 (Study on the Sound Absorption Properties of Noise Barrier according to the Compositions of Absorptive Material)

  • 김경우;양관섭;강재식;이승언
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2002년도 춘계학술대회논문집
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    • pp.1222-1227
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    • 2002
  • Noise barrier is used to reduce traffic noise. The effect of a noise barrier depends not only on the materials, but also on the physical properties such as density, height and degree of absorption, etc. Typical absorptive noise barrier is used sound absorbing material, such as glass wool and mineral wool. The goal of this study is to develope excellent absorptive noise barrier using a polyester. Laboratory measurements were peformed with various thicknesses, density and layer of absorber in a reverberation room.

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The Determinants of Technology Commercialization Performance of Technology-based SMEs

  • Jo, Dong Hyuk;Park, Jong Woo
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제11권8호
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    • pp.4146-4161
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    • 2017
  • This study is intended to examine the roles of the social capital and absorptive capacity in technology-intensive firms and verify these roles in an empirical way for the purpose of improving the technology commercialization performance in technology-intensive firms. To achieve the purpose, this study examined the concept and dimensions of social capital through a literature review, empirically verified the effect relationship between the social capital, and absorptive capacity, and technology commercialization performance in technology-intensive firms. This study is meaningful in that it has determined the importance in the formation of social capital and the enhancement of absorptive capacity and suggested strategic directions to improve technology commercialization performance.