• Journal of Korea Technology Innovation Society
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• v.14 no.4
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• pp.1000-1023
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• 2011

The government adopts mainly three venture-supporting systems such as Venture Certification, InnoBiz Certification, and MainBiz Certification. This study compares the policy effects of productive aspects and technical inefficiency aspects of Venture Certification and InnoBiz Certification using the data on 'The 2010 Actual Conditions of Venture Enterprise.' With the estimation of production functions, it is found that only 'financing and ease of investment' produces a statistically significant effects on productivity. On the other hands, the other effects of 'the venture certification' do not produce positive effects. However, it is revealed that 'the venture certification policy' primarily reduces technical inefficiencies. The InnoBiz certification policy shows primarily insignificant effects in both sides of the production aspects and technical inefficiency aspects. However, the 'marketing ability effect' produces a positive effect on production and reduces the technical inefficiencies as well.

• Korea Trade Review
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• v.42 no.5
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• pp.137-159
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• 2017

This study divides manufacturing in 18 countries including Korea, China, Japan and OECD countries into 11 areas and estimates and compares the technological efficiency of each industry. The traditional view of productivity is to increase production capacity through technological innovation or process innovation, but it is also influenced by the technological efficiency of production process. A Stochastic Frontier Production Model (SFM) is a representative method for estimating the technical efficiency of such production. First, as a result of estimating the production function by setting the output variable as total output or value-added, in both cases, the output increased significantly in all manufacturing sectors as inputs of labor, capital, and intermediate increased. On the other hand, R&D investment has a large impact on output in chemical, electronics, and machinery industries. Next, as a result of estimating the technological efficiency through the production function, when the total output is set as the output variable, the overall average of each sector is 0.8 or more, showing mostly high efficiency. However, when value-added was set, Japan had the highest level in most manufacturing sectors, while other countries were lower than the efficiency of the total output. Comparing the three countries of Korea, China and Japan, Japan showed the highest efficiency in most manufacturing sectors, and Korea was about half or one third of Japan and China was lower than Korea. However, in the food and electronics sectors, China is higher than Korea, indicating that China's production efficiency has greatly improved. As such, Korea is not able to narrow its gap with Japan relatively faster than China's rapid growth. Therefore, various policy supports are needed to promote technology development. In addition, in order to improve manufacturing productivity, it is necessary to shift to an economic structure that can raise technological efficiency as well as technology development.

• 프린팅코리아
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• v.12 no.7
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• pp.78-79
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• 2013

OECD 회원국 34개국 중 시간당 노동생산성은 20위권에 머물고 있지만, 근로시간은 OECD 국가 중 2위를 차지하고 있다. 일은 오래하지만, 효율이 떨어진다는 의미다. 노동생산성 역시 OECD 평균 대비 79.9%, 미국의 60.6%, 일본의 86.6% 수준에 그치고 있다. 세계 시장에서 경쟁력을 확보하기 위해서는 노동생산성 향상이 꼭 이뤄져야 한다.

• Journal of Navigation and Port Research
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• v.48 no.1
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• pp.17-26
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• 2024

Port distripark can activate more functions. It is adjacent to a port. However, domestic port distripark is still limited to support port because of the shortage of infrastructure facilities, government policy, and investment. Therefore, this study tried to investigate the operation status of domestic port distripark and derive policy implications by conducting DEA analysis and productivity analysis based on internal data of each port distripark. As a result of Data Envelopment analysis, it was found that the west port distripark of Gwangwang and the northern port distripark of Incheon were efficient in the warehouse industry while the northern port distripark of Incheon and the Ulsan 1 port distripark were efficient in the manufacturing industry. In addition, in the case of foreign investment productivity, the west side port distripark of Gwangyang and the stage 1 port distripark of Pyeongtaek Dangjin were found to be higher than the others. In the case of facility investment productivity, the port distripark on the west side of Gwangyang and the north side of Incheon had the highest productivity. Lastly, in the case of labor productivity, the north side of Incheon and Busan ungdong port distripark showed the highest productivity. These results imply that it is important to review handling item when picking up enterprises in the port distripark for enhancing efficiency, foreign investment, and facility investment. The number of employees is not directly affecting the productivity improvement.

• Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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• 2002.05a
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• pp.101-101
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• 2002

현재의 세계 제지업계는 고지의 사용량과 용수의 재홀용률을 높이기 위해 노력하고있다. 특히 한국의 고지 재활용률은 세계 최고수준으로 보고된 바 있으며, 이를 사용하는 재생용지 생산업채는 고지의 높은 재활용률에 기인하는 여러 가지문제점에 당면하고 있다. 국산 고지는 반복적인 재활용으로인하여 섬유장이 짧고 매우각질화된 상태이며, 펄프 내 미세분 함량이 50%이상에 달하고 있다. 또한 섬유의 표면이 인쇄잉크, stickies 및 각종 이물질로 오염됨에 따라, 섬유자체가 보유하고 있는 섬유간 결합 능력이 저하된 상태이다. 이는 초지시, 탈수성을 악화시켜 생산성을 저하시키며, 탈수성 악화에 기인하여 충분한 고해 과정을 거치지 못하여 생산된 종이의 물리적 성질에 악영향을 미치고 있다. KOCC를 주원료로 사용하는 다겹 판지의 제조공정 또한 재활용 원료의 열악함에 기인한 초지계 내의 과다한 미세분 축적과 이로 인한 탈수성의 저하 및 건조효율의 저하를 막기 힘들었다. 이러한 탈수성 및 건조속도의 저하로 종이 생산 효율의 개선 및 각 물성의 상승을 기대하기 어려웠으며, 이를 개선하기 위하여 다양한 Polyelectrolyte를 첨가하였으나 현저한 효과를 보기 힘들었다. 이에 본 연구에서는 새로운 목질계 부원료인 Lignocell을 사용하여 초지시 탈수성 향상과 건조 촉진, 생산된 종이의 bulk 향상으로 인한 stiffness 등 물리적 성질의 향상효과를 평가하고자 하였다.

• Journal of the Korea Society of Computer and Information
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• v.3 no.1
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• pp.113-124
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• 1998

This paper has simulated JIT production system. One of the well-known production management system, JIT, was first developed in Toyota in Japan during 1970's. Its contribution to productivity and quality improvement seemingly predicts its wider use. The JIT system has been proved its effectiveness lot production management system by many industries, however the effectiveness of its application in non-repetitive productions is yet uncertain. In this respect, this paper develope the JIT simulation model, and this JIT model are evaluated by using a SIMAN simulation. It has proved that the performances of JIT model are excellent.

• Korean Journal of Construction Engineering and Management
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• v.4 no.4 s.16
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• pp.164-172
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• 2003

생산성은 프로젝트를 관리하는데 있어서 효율성을 측정하는 중요한 지표이다 또한 건설 생산성은 비용 및 일정과 연관성이 있을 뿐만 아니라 프로젝트의 성공 여부와도 관련이 크다. 프로젝트에서 생산성의 중요성에도 불구하고 국내에서의 생산성 관련 연구는 생산성에 대한 기본 개념 및 원칙에 관한 기초적인 연구 없이 정량적인 연구에 집중되어 있으며, 관련 데이터 수도 적은 실정이다. 국내 건설 공사의 생산성을 향상시키기 위해서는 생산성 관리의 정량적친 요인뿐만 아니라, 정성적인 요인까지 관리해야 하며, 저하요인에 따른 체계적이고 세부적인 프로세스 및 기법이 제시되어야 한다 이에 국내 건설 공사의 생산성 관리에 린 건설을 도입하고자 한다. 본 연구에서는 국내 생산성 저하요인과 린 건설에서의 Waste 요인과의 상관관계 분석을 통해 국내 건설 공사 현장에서의 Waste 주요 의미를 살펴보고 두 요인간의 상호 관련성을 파악하여, 린 건설의 프로세스 및 기법을 국내 건설 공사 현장에 적용하기 위한 이론적인 근거를 제공하고자 한다.

• Journal of Korea Port Economic Association
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• v.26 no.3
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• pp.165-174
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• 2010

DEA converts multiple inputs and outputs of a decision unit into a single measure of performance, generally mentioned as relative efficiency. DEA has been applied successfully as a performance evaluation tool in many fields including manufacturing, banks, pharmacies, and hospitals to name a few. This paper applies the input-oriented DEA model, DEA/Window analysis, and Malmquist indices to the 9 regions in Korea to measure the efficiency and productivity. The empirical results show the following findings. First, the super efficiency indicate that efficiency of Group 2 is greater than Group 1. Second, Malmquist indices show that productivity of Group 2 is less than Group 1. Third, DEA/Window of Group2 show that Chungnam is most stable, while Jeonnam is most unstable.

• Proceedings of the Korean Information Science Society Conference
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• 1999.10c
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• pp.167-169
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• 1999

산업응용 시스템에 있어서의 생산성이란 시스템의 성능 및 효율성에 관한 척도가 된다. 따라서, 시스템의 개발 전과정에서 이를 향상시키려는 많은 노력이 이루어진다. 특히 반도체의 제조공정에서는 이를 위한 노력이 민감하게 발전되어 왔다. 이들 중 IC Test Handler의 Socket관리는 제품(Device)의 생산량과 함께 시스템의 효율성에 직접적인 영향을 주는 부분으로 많은 연구 및 개발이 이루어지고 있다. 본 논문에서는 이러한 생산성 및 효율성을 높이기 위한 자동 Socket 관리 시스템을 개발하여 사용자(Operator)에게 보다 향상된 시스템 환경을 제공하고자 한다. 이를 위해 PC 환경의 GUI 시스템을 도입하였으며, 실제적인 제어부분은 Real Time 운영체제를 탑재한 VME 시스템이 담당하였다. 또한, 신뢰성을 위하여 날짜별 데이터를 하드디스크에 저장하여 Socket 데이터를 사용자가 확인할 수 있도록 하였다.

• Journal of Korea Society of Industrial Information Systems
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• v.5 no.1
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• pp.37-46
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• 2000

In this paper, we developed a simulation model of a car parts assembly line to improve the system performance such as worker's utilization balancing, productivity. This simulation model has been developed using QUEST, a true 3D discrete event simulation pakcage that is designed for modeling and analysis of manufacturing systems. We have suggested the results obtained to improve the system performances of an existing production line.