• 한국콘텐츠학회논문지
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• 제22권2호
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• pp.617-629
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• 2022

본 연구는 선박 부품제조 기업의 기술혁신이 경영성과에 미치는 영향관계에서 기술흡수역량의 매개효과를 실증적으로 분석하였다. 이를 통해, 향후 기술개발과 관련된 경영전략 수립의 개선방안에 시사점을 제공할 수 있을 것이다. 본 연구목적을 달성하기 위하여, 부산, 경남 지역의 조선, 선박 부품업체의 연구개발, 마케팅, 생산·제조, 자금/회계 부서에 근무하는 총 362명을 연구대상자로 선정하였다. 본 연구결과, 선박 부품제조 기업의 기술혁신, 기술흡수역량이 경영성과에 정(+)적인 영향을 미치는 것으로 파악되었다. 이러한 연구결과를 근간으로 한 결론은 기술흡수역량을 구성하는 잠재흡수역량과 실현흡수역량이 지속적인 기술 역량 축적 등 기술혁신과 경영성과 상호 간에 주요한 핵심 요인이 될 것으로 판단된다. 실무적인 관점에서는 선박 부품제조 산업은 스마트 부품공정 기술흡수 역량에 집중할 필요성이 제기된다.

• 한국컴퓨터정보학회논문지
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• 제23권12호
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• pp.211-218
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• 2018

In this paper, we propose that investigating the relationship between the dynamic capacity and the technological innovation performance of firms. Based on the previous research, we divide the dynamic capacity into the adaptive capacity, absorption capacity, and productive capacity. Among the 3,400 companies responding to the technical statistics of SMEs in 2011, we performed multiple regression analysis with 2,807 except service industries. As a result, the absorptive capacity and productive capacity have a positive effect on the technological innovation performance at the 99% level, whereas the adaptive capacity has a negative effect on the technological innovation performance at the 95% level. The implications of this study are as follows. First, in order to improve the performance of technological innovation, it is important to strengthen the absorption capacity and productive capacity of companies. Absorption capacity shows that it is important to secure sufficient R & D manpower and R & D cost to utilize internal knowledge as well as to bring outside knowledge into the capacity to assimilate and utilize external knowledge. Second, the ability to commercialize a product is a capability to commercialize a technology that has succeeded in development, showing that the technology development organization must have the capability of post-development commercialization as well as technology development. Finally it shows the negative effect on adaptation capacity and innovation performance. Companies actively utilize external sources of information in order to respond to and adapt to the rapidly changing business environment. However, the results of this study show that a strategic approach is needed to use external sources of information and technology development resources. Especially as the use of external information resources and technology development resources increases.

• 한국수소및신에너지학회논문집
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• 제15권3호
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• pp.250-256
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• 2004

Magnesium and its alloys have the high potential as hydrogen storage materials because of their highest hydrogen storage capacity, low density and abundant resources. But poor kinetic properties of hydriding and dehydriding and high working temperature have limited their practical applications. In this study, the Mg-Ni binary alloys with different amount of Ni were produced by gravity casting and characterized in order to investigate the relationship between the microstructures and hydriding properties. The maximum hydrogen absorption capacity decreased, but the absorption kinetics increased with Ni content. The difference in the absorption kinetics was resulted from the differences in the sort and shape of primary solid phases and eutectic microstructure.

• 한국수소및신에너지학회논문집
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• 제24권4호
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• pp.334-339
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• 2013

In this study, as a candidate of the carbon dioxide ($CO_2$) absorbents, the mixture solution of polyethylene glycol dimethyl ether (PEGDME) and tetrahydrofuran (THF) were investigated. $CO_2$ absorption rate was measured by using high pressure $CO_2$ screening equipment in the range of 1 - 10wt% THF. Absorption capacity of the mixture solution was also estimated. Based on the results, we found that mixture solution containing THF had higher absorption rate and $CO_2$ loading capacity compared to PEGDME at $25^{\circ}C$.

• 한국산학기술학회논문지
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• 제21권9호
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• pp.73-81
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• 2020

본 연구는 통합역량 IT 지원이 조직성과에 미치는 영향에 대해서 조직의 절제와 흡수역량이 매개했을 때의 영향에 대해서 실증 분석하였다. 본 연구에 대한 실증 분석을 위해 사기업과 공기업 종사자를 대상으로 총 126명의 설문을 바탕으로 Smart PLS 3.0으로 연구 모형을 검증하였다. 통계 분석결과 첫째, 통합역량 IT 지원은 조직절제의 하위 요인인 조정과 적응력에 모두 정(+)의 영향을 미쳤으며, 흡수역량에도 정(+)의 영향을 주었다. 둘째, 조직의 절제는 흡수역량에 정(+)의 영향을 미치는 것을 확인하였다. 셋째, 통합역량 IT 지원과 흡수역량의 관계에서 조직의 절제를 매개로 했을 때 정(+)의 영향을 미쳤다. 넷째, 흡수역량은 재무성과와 비재무성과에 정(+)의 영향을 미쳤다. 본 연구의 시사점은 IT 기술과 조직성과 관계에서 조직 윤리 차원의 요인으로 확장하여 상관관계를 검증함으로써 기존 연구들과 차별성을 두고 있다. 또한 흡수역량의 선행 요인으로써 조직의 윤리적 요인도 선행 요인으로서 작용함을 규명함에 따라 연구의 의의가 있다. 통합역량 IT 지원은 경영자에게 균형 있고 안정감 있는 의사결정에 도움을 주며, 이는 구성원들에게 조직에 대한 긍정적인 인식을 주어 흡수역량 향상에 기여할 수 있으며, 궁극적으로 조직성과에 긍정적인 영향 미친다. 흡수역량이 필수적인 조직의 성과 향상을 위해서는 적절한 IT 인프라 구축과 조직의 미덕 함양의 중요함을 시사한다.

• 한국공작기계학회논문집
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• 제17권1호
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• pp.86-91
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• 2008

The structural members must be designed to control characteristics of energy absorption for protecting passengers in a car accident. Study on collapse characteristics of structural member is currently conducted in parallel with other studies on effective energy absorption capacity of structural members with diverse cross-sectional shapes and various materials. This study concerns the crashworthiness of the widely used vehicle structural members, square thin-walled tubes, which are excellent in the point of the energy absorption capacity. The absorbed energy, mean collapse load and deformation mode were analyzed for side member which absorbs most of the collision energy. To predict and control the energy absorption, controller is designed in consideration of its influence on height, thickness and width ration in this study. The absorbed energy and mean collapse load of square tubes were increased by $15{\sim}20%$ in using the controller, and energy absorbing capability of the specimen was slightly changed by change of the high controller's height.

• 대한기계학회논문집B
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• 제26권5호
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• pp.733-741
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• 2002

If a part of the poor solution from the absorber outlet is recirculated to the absorber inlet, the solution temperature at the solution spray pump can be reduced, and the solution flow rate in the absorber is increased. We have performed the experiments on the influences of the absorption chiller performance according to the ratio of the recirculation, defined as the ratio of the recirculation flow rate to the total solution flow rate at the absorber outlet. As increasing the ratio of the recirculation, the absorption capacity of the solution can be deteriorated. On the other hand, due to the increasing flow rate, the heat transfer rate can be enhanced. As a result, the performance of the absorber and the cooling capacity of the absorption chiller have nothing to do with the recirculation ratio, and the lifetime of the spray pump will be maintained.

• Journal of Advanced Marine Engineering and Technology
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• 제28권2호
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• pp.243-251
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• 2004

Absorption chiller/heater can utilize the unused energy of the daily life waste heat, the industry waste heat. the solar energy and the earth energy. These can contribute to energy savings. But the absorption chiller/heater has a demerit that the size of absorption chiller/heater is larger than that of the vapor compression type based on same capacity. In this study. the experimental apparatus of an absorber is manufactured as a plate. which is newly applied in an absorber. The experimental apparatus is composed of a plate type absorber. which can increase the heat exchange area per unit volume and thus facilitating to deeply investigate more detail features instead of that done by the existing type. i.e.. horizontal tube bundle type. The characteristics of heat transfer and refrigeration capacity are studied experimentally. The absorption enhancement by using surfactant is closely examined through the experiment and comparative figures are presented in quantitative and qualitative analysis.

• 산업기술연구
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• 제41권1호
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• pp.7-13
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• 2021

Fiber-reinforced polymer reinforcement or polyurea reinforcement techniques are applied to strengthen unreinforced masonry walls (UMWs). The out-of-plane reinforcing effect of sprayed glass fiber-reinforced polyurea (GFRPU), which is a composite elastomer made of polyurea and milled glass fibers on UMW, is experimentally verified. The out-of-plane strengths and ductile behaviors based on various coating shapes are compared in this study. An empirical formula to describe the degree of reinforcement on the out-of-plane strength of the UMW is derived based on the experimental results. It is reported that the peak load-carrying capacity, ductility, and energy absorption capacity gradually improve with an increase in the strengthening degree or area. Compared with the existing masonry wall reinforcement method, the GFRPU technique is a construction method that can help improve the safety performance along with ease of construction and economic efficiency.

• Computers and Concrete
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• 제24권2호
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• pp.159-172
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• 2019

This paper presents an investigation into the flexural behavior of reinforced concrete (RC) beams retrofitted by ultra-high performance fiber-reinforced concrete (UHPFRC) layers. The experimental study has been conducted in two parts. In the first part, four methods of retrofitting with UHPFRC layers in both the up and down sides of the beams have been proposed and their efficiency in the bonding of the normal concrete and ultra-high performance fiber-reinforced concrete has been discussed. The results showed that using the grooving method and the pre-casted UHPFRC layers in comparison with the sandblasting method and the cast-in-place UHPFRC layers leads to increase the load carrying capacity and the energy absorption capacity and causes high bond strength between two concretes. In the second part of the experimental study, the tests have been conducted on the beams with single UHPFRC layer in the down side and in the up side, using the effective retrofitting method chosen from the first part. The results are compared with those of non-retrofitted beam and the results of the first part of experimental study. The results showed that the retrofitted beam with two UHPFRC layers in the up and down sides has the highest energy absorption and load carrying capacity. A finite element analysis was applied to prediction the flexural behavior of the composite beams. A good agreement was achieved between the finite element and experimental results. Finally, a parametric study was carried out on full-scale retrofitted beams. The results indicated that in all retrofitted beams with UHPFRC in single and two sides, increasing of the UHPFRC layer thickness causes the load carrying capacity to be increased. Also, increases of the normal concrete compressive strength improved the cracking load of the beams.