• International Journal of Computer Science & Network Security
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• 제22권8호
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• pp.362-370
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• 2022

The assessment of specific impacts on the environment is a preventive measure for environmental protection which is based on the definition and proposal of measures that can prevent harmful effects, reduce or eliminate them. In the physical sense, vibration is the oscillating motion of an object with the effect of internal or external forces applied to it. People who touch a vibrating surface or object will feel these vibrations. In general, there are two types of vibration exposure. The first are the vibrations of the hands and arms transmitted by the held parts of tools or machinery. The second are whole-body vibrations transmitted from a seat or surface to a motorized car. The risk of injury to workers exposed to vibration varies depending on the size, frequency, type, duration of exposure, and organ affected. The purpose of this paper is to review the measurements of vibrations in the Kosovo Energy Corporation in the mine Sibovc Southwest, where coal with a rotary excavator is exploited and the evaluation of vibrations for working conditions for workers working in that environment and improving working conditions for the measurement of vibrations we have used the device Minimate DS 078, the purpose of such environmental impact assessment is to collect data and predict the harmful impacts on the environment, namely the impact on water, air, soil, life and health of as well as identify and propose measures that could prevent, reduce or eliminate altogether.

• 한국산업정보학회논문지
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• 제14권2호
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• pp.59-71
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• 2009

급변하는 경영환경 속에서 기엽이 지속적인 경쟁우위를 획득하기 위해서는 성공적인 정보기술전략과 효율적인 정보기술 투자를 위한 투자성과의 체계적인 관리가 필요하다. 따라서 본 연구에서는 정보기술전략인 운영지향성과 시장지향성이 정보기술 투자방향 및 프로세스 혁신역량과 기엽의 비재무적 성과와 재무적 성과에 미치는 영향을 분석하고자 한다. 본 연구의 실증연구에서는 SCM을 실행하고 있는 기업을 대상으로 설문조사를 실시하여 온라인과 오프라인을 통해 자료를 수집하였으며, 최종적으로 82개 의 표본을 분석에 사용하였다.

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 1993년도 Proceedings of International Conference for Agricultural Machinery and Process Engineering
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• pp.109-118
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• 1993

Development process of agricultural technology has been studied with a case study of Korean agriculture. Technological is considered as a transformer of inputs into outputs and hence technological appropriateness, an important aspect of agricultural development strategies, is considered as a dynamic concepts. Considering the concept of agricultural system as a delivery system for providing essential materials and services to producers and consumers, it has been divided into two major groups of dimensions vis. external challenge dimensions and internal response dimensions. Market, investment and agro-ecosystem constitute the external challenge dimensions : whereas trade , technology as well as production and resources allocation constitute internal response dimensions. The system manager is responsible for maintaining equilibrium in the mentioned six sub-systems. Two kinds of alternatives paths of technological development viz. land saving technology and labour saving technolog have been studied. Technology is considered as a combination of four basic components viz. facilities, abilities, facts and frameworks. Adoption of innovation in agriculture depends on profitability, awareness, risk aversion, financial capacity, institutional infrastructure, availability of physical inputs and adaptability to the local conditions. For a cast study of Korea, changes in the agricultural system through external challenge dimensions are investigated. The impacts of industrialization on agro-ecosystem reported are shift of labour from the agricultural sector to non-agricultural sectors and continuously increasing demand of farm the agricultural sector to non-agricultural sectors accompanied by increase in land prices. The impacts on the commodity market discussed are shift in demand from rice, barley and other cereals to meat , dairy products and vegetables : and increasing in supply capacity of agricultural inputs. The process of agricultural development from 1962 to 19 1 9 (i.e. from start of the first to the end of the sixth five year plan) are also discussed in details with several policy measures taken. The trend of agricultural income and productivity are also analyzed. The main cause of increase in the agricultural income is considered as increase in labour productivity. The study revealed that during the span of 1965-88, holding size has not changed significantly, but both the land and labour productivity increased and so did the agricultural income. R&D activities in Korea have changed over time in three stages vix. import of improved technology, localization by adaptive research and technological mastery. For the new technology to be made affordable to farmers, policy measures like fertilizer and food grain exchange system, dual price system in rice and barely and loan for machinery were strengthened.

• 한국건설관리학회논문집
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• 제9권4호
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• pp.173-181
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• 2008

최근 해외건설은 외부환경에 의해 급속도로 수주량이 증가하고 있는 실정이다. 하지만, 국내 건설기업들의 높은 수주량이 해외시장의 확대 등 외부요건에 의해 발생된 것이고 내부역량이 높아진 것이 아니라는 우려의 목소리가 나오고 있어 지속적인 수익률을 위해서는 외부 환경에 최소한의 영향을 받는 전략 수립과 함께 효율성 있는 업무 체계를 갖추는 등 기업 내부의 경쟁력 강화에 각별한 노력을 기울일 시기이다. 이에 본 연구를 통해 국내 건설기업의 경쟁력을 플랜트사업 중심으로 살펴본 결과 해외건설에 외부 요인인 환율 변동과 국제 원자재 가격 변동은 타 산업에 비해 타격이 크지는 않지만 점차 악화되고 있는 등 국내 주요 건설기 업들의 수익률이 낮아질 가능성이 존재하는 것으로 나타나 지속적인 수익률을 위한 기업의 각별한 노력이 필요한 시기임을 확인할 수 있었다. 또한 건설기업 내의 주요 기능별 업무를 국내사와 선진사와의 상대비교 분석을 통해 국내 건설기업들이 향후 가져가야 할 중점 강화 역량으로는 설계업무 그리고 전략적 강화역량으로는 사업기획, 사업개발 및 영업, 외주관리, 원가관리 업무인 것으로 나타났다. 이러한 결론들은 향후 해외시장에 진출하는 건설기업의 입장에서 전략적 방향을 설정하는데 기초 자료로 활용될 수 있을 것으로 판단된다.

• 정보화연구
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• 제10권1호
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• pp.13-22
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• 2013

The Internet has motivated firms to participate in electronic commerce. With the development of electronic commerce, SMEs (small- and medium-sized enterprises) may be forced to use e-intermediaries in export marketing. This study aims at assessing e-intermediaries in various aspects. Empirical and theoretical studies are conducted to investigate determinants and effects of eintermediary use in export marketing. Based on resource-based view (RBV), the study develops a conceptual model that can address the question of which international competence and export performance are closely related to e-intermediary use by SMEs. Based on literature review and theoretical foundations, this study made four hypotheses. With AMOS, structural equation modeling (SEM) was used for testing four hypotheses. The empirical findings support all hypotheses. Last, this study suggests examining comprehensive internal and external factors in terms of e-intermediary use as an interesting topic for future research.

• 산경연구논집
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• 제4권1호
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• pp.11-14
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• 2013

Purpose - The objective of this paper is to explain how the Chinese distribution market will continue to bring tremendous business opportunities to commercial enterprises given the relatively strong economic fundamentals and substantial government-led measures for boosting domestic demand. Research design, data, and methodology - The study conducted a survey on China's 2011 retail market data. After empirically analyzing the data on retail sales, online retail markets, and franchises, we believe that online retailing in China will maintain its growth momentum. Results - This study shows that 2012 is expected to be a challenging year for the retail sector, as both external and internal pressures are likely to persist. Some of the major challenges facing retailers in China are mentioned below. Conclusions - Retailers in China face several major challenges. First, the uncertain economic outlook is having a considerable impact on China's retail market. Second, China's retailers face an unfair competition environment. Third, they are suffering the impacts of product safety problems.

• BMB Reports
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• 제51권5호
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• pp.211-218
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• 2018

Chromatin is an intelligent building block that can express either external or internal needs through structural changes. To date, three methods to change chromatin structure and regulate gene expression have been well-documented: histone modification, histone exchange, and ATP-dependent chromatin remodeling. Recently, a growing body of literature has suggested that histone tail cleavage is related to various cellular processes including stem cell differentiation, osteoclast differentiation, granulocyte differentiation, mammary gland differentiation, viral infection, aging, and yeast sporulation. Although the underlying mechanisms suggesting how histone cleavage affects gene expression in view of chromatin structure are only beginning to be understood, it is clear that this process is a novel transcriptional epigenetic mechanism involving chromatin dynamics. In this review, we describe the functional properties of the known histone tail cleavage with its proteolytic enzymes, discuss how histone cleavage impacts gene expression, and present future directions for this area of study.

• 지식경영연구
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• 제17권4호
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• pp.77-104
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• 2016

The effective management of R&D employees is critical for a small or medium sized firm's sustainable growth. R&D employees have professional skills and choose expertise-oriented or management-oriented careers in the process of organizational socialization. This study synthetically verifies the direct and indirect effects of R&D employees' social network and self-esteem on their career orientation by organizational commitment based on social network theory and social recognition theory. The research model has been analyzed through structural equation modeling using survey responses from 220 R&D employees at small- and medium-sized firms in Korea. The analysis results show that internal network activities have direct and indirect impacts on organizational commitment and career orientation, but external network activities do not have significant effects on self-esteem, organizational commitment, or career orientation. There is no consensus in prior studies on whether expert orientation and management orientation are distinct concepts. In this study, these two types of orientation are verified as distinct concepts. It is also found that R&D employees' internal network activities are significant factors for a company's growth. A company should implement an educational system of roles and duties using which individuals can pursue career progression. In addition, it is necessary to provide career development programs such as job rotation, mentoring, and career counseling.

• 대기
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• 제33권5호
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• pp.561-570
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• 2023

In order to improve the predictability of marine high-impacts weather such as typhoon and high waves, the marine observation network is an essential because it could be rapidly changed by strong air-sea interaction. In this regard, the National Institute of Meteorological Sciences, Korea Meteorological Administration (NIMS/KMA) has promoted the Argo float observation program since 2001 to participate in the International Argo program. In this study, current status and future direction of the NIMS/KMA Argo program are presented through the internal meeting and external expert forum. To date, a total of 264 Argo floats have been deployed into the offshore around the Korean Peninsula and the Northwestern Pacific Ocean. The real-time and delayed modes quality control (QC) system of Argo data was developed, and an official regional data assembling center (call-sign 'KM') was run. In 2002, the Argo homepage was established for the systematic management and dissemination of Argo data for domestic and international users. The future goal of the NIMS/KMA Argo program is to improve response to the marine high-impacts weather through a marine environment monitoring and observing system. The promotion strategy for this is divided into four areas: strengthening policy communication, developing observation strategies, promoting utilization research, and activating international cooperation.

• 품질경영학회지
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• 제45권1호
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• pp.65-92
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• 2017

Purpose: The performance of global major airports is evaluated and several research questions are examined relative to the measures characterizing airport performance. Methods: The two-stage internal structure of airport performance is considered by decomposing it into physical operations and revenue generation. In the physical operations stage, operating costs, number of runways, terminal area and number of employees are used as inputs, while passenger throughput, cargo throughput and aircraft movements are taken as outputs. Subsequently, in the revenue generation stage, the outputs from the preceding stage are taken as inputs, while revenue is used as output. Results: Based upon this two-stage modeling of airport performance, a multiplicative two-stage network data envelopment analysis model is employed to calculate the overall and stage efficiencies of 59 airports using the recent data in the 2014 Airport Benchmarking Report published by the Air Transport Research Society. Several internal and external factors are also considered such as airport size, airport geographical location, proportion of international passengers, ownership (listed or not) and management style, and statistical analysis is performed to examine their impacts on airport performance. Conclusion: It is shown that the airports exhibit statistically significant difference across regions, and also some statistically significant factors affecting airport performance are identified.