• 한국가스학회지
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• 제6권1호
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• pp.24-31
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• 2002

기업의 안전$\cdot$보건, 환경(SHE: Safety, Health and Environment)과 관련된 사고는 큰 인적$\cdot$물적 손실을 가져오기 때문에 사회적 책임에 관한 문제로 확산되고 있는 추세이다. 따라서 기업은 SHE 문제에 대해 수동적$\cdot$소극적인 대응에서 벗어나 자발적인 SHE 관리수행이 필요하게 되었다. 본 연구에서는 국내 기업의 SHE 관리 실태를 조사하여 연구$\cdot$분석하고. 그 결과를 활용하여 기업 스스로 자율적인 SHE 관리를 수행할 수 있는 KW{Kwangwoon}_SHE(Safety, Health and Environment) 관리 모델을 제시하였다. 이 모델은 SHE 관리에 있어서 관리비 투자에 대한 업무 성과를 손쉽게 평가할 수 있도록 하였다.

• 한국포장학회지
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• 제17권2호
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• pp.39-42
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• 2011

신선 편의가공된 절단양파제품의 적정 포장방법을 개발하고자 LDPE $30{\mu}m$, PD900과 PD941 필름을 이용한 수동형 MA 포장의 적용 가능성을 연구하였다. 포장필름을 달리하여 $1^{\circ}C$에서 38일간 저장하면서 포장내의 가스조성, 중량 손실, 부패율, 색도, 경도 등을 측정하였다. 기체 투과도가 낮은 PD900포장이 곰팡이 부패나 육안적인 품질손상 없이 38일 동안 저장되는 데에 무리가 없었고, 색택과 가용성 고형분 함량에서도 비교적 양호하였다.

• 한국진공학회지
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• 제18권4호
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• pp.310-317
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• 2009

BGA 제조용 습식 현상 공정에 있어 기존의 수평 장비를 대체하여 수직 장비를 새로이 개발하였다. 수직 장비의 장점은 기판 표면의 소프트한 드라이필름 회로 패턴의 요철과 장비 구동부와의 직접적인 접촉을 배제함으로써 현상 공정 진행 중 회로 패턴의 손상을 최소화할 수 있다는 것이다. 본 연구에서는 개발된 수직 장비의 공정 특성을 최적화하기 위하여 다구찌 실험을 수행하였다. 수직 장비에 병렬로 동시 투입되는 2장의 기판에 대하여 공정 특성을 동일하게 하기 위해 적절한 잡음인자 및 제어가능인자를 선정하여 망소특성치 실험을 수행하였다. 실험 결과 현상 약품액의 온도 및 현상 스프레이에 노출되는 시간이 주요한 제어가능인자인 것으로 평가되었다. 최종적으로 회로 패턴의 손상 없이 현상 공정을 진행할 수 있는 최소 회로 선폭이 선형패턴의 경우 수평 장비 $13.8{\mu}m$ 대비 수직 장비는 $10.4{\mu}m$로, 닷 패턴의 경우 수평 장비 $22.1{\mu}m$ 대비 수직 장비는 $16.3{\mu}m$로 각각 향상된 결과를 얻을 수 있었다.

• 대한예방한의학회지
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• 제15권1호
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• pp.131-143
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• 2011

Objective : The purpose of this study was survey about the recognition and demand on cooperative system between western and oriental medicine of stroke patients in National Rehabilitation Center. Methods : The participants were 205 stroke patients in the National Rehabilitation Center and investigated the recognition and demand on cooperative system between western and oriental medicine. Results : As to general characteristics of the group, 56.9% were male, 30.7% were in the 60~69 age, 24.3% of patients had an average income per month 1.0~2.0 million. In regard to disease status of patients, 53.8% were cerebral infarction, 35.8% were below 6 month in disease duration, 73.7% were none recurrence, 52.8% were hypertension as related disease, 74.5% were motor paralysis sequela. 83.2% were positive response in using oriental medicine department of National Rehabilitation Center. The most wanted therapy was acupuncture. Most of respondents expected that co-operative treatments were to be improving the cure effect for patients. And they wanted cooperative system combined evenly between western and oriental medicine, so the western doctors and the oriental doctors suggest the plan giving lots of medial benefits for patients. Conclusion : This survey showed the recognition and demand on cooperative system between western and oriental medicine of patients in National Rehabilitation Center. It is possible to realize patient's centered treatment under the stable and efficient cooperation of western and oriental medicine.

• Journal of Information Processing Systems
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• 제6권1호
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• pp.1-20
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• 2010

Due to the convergence of voice, data, and video, today's telecom operators are facing the complexity of service and network management to offer differentiated value-added services that meet customer expectations. Without the operations support of well-developed Business Support System/Operations Support System (BSS/OSS), it is difficult to timely and effectively provide competitive services upon customer request. In this paper, a suite of NGOSS-based Telecom OSS (TOSS) is developed for the support of fulfillment and assurance operations of telecom services and IT services. Four OSS groups, TOSS-P (intelligent service provisioning), TOSS-N (integrated large-scale network management), TOSS-T (trouble handling and resolution), and TOSS-Q (end-to-end service quality management), are organized and integrated following the standard telecom operation processes (i.e., eTOM). We use IPTV and IP-VPN operation scenarios to show how these OSS groups co-work to support daily business operations with the benefits of cost reduction and revenue acceleration.

• Journal of Korea Trade
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• 제23권4호
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• pp.30-57
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• 2019

Purpose - This study analyzes the effect of internationalization represented as exporting on firm performance on the subject of SMEs operating in Masan Free Trade Zone which has shown poor performance recently despite its status as the oldest and largest free trade zone in Korea. We also analyze the effect of firm size on firm performance, and the moderating role of firm size in relation to internationalization and firm performance. Design/methodology - This study uses multiple regression models for unbalanced panel data as the empirical tools for the estimation of the effect that internationalization has on firm performance (ROA or ROS). Our sample consists of 91 manufacturing SMEs among all 110 companies located in Masan Free Trade Zone as of 2017. Findings - The degree of internationalization has a negative impact on firm performance. However, firm size turns out to have a positive effect and play a positive moderating role in the relation to internationalization and firm performance. This seems to be because most tenant companies operating in Masan Free Trade Zone are small firms whose costs of internationalization may exceed the benefits. Empirical results also show that longer CEO tenure has a greater negative effect on firm performance. Originality/value - The originality/value of this paper can be found in 3 aspects. First, we conducted an empirical analysis on the relationship between the internationalization and firm performance of SMEs in a specific region, namely, Masan Free Trade Zone. Second, while most previous studies focused on listed medium companies, most of the sample of this study are small and medium non-listed enterprises. Third, it is witnessed that firm size has a positive moderating effect on the relation between internationalization and firm performance.

• 국제지역연구
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• 제22권1호
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• pp.261-284
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• 2018

UN이 지속가능개발목표의 하나로 에너지 보급을 제시하고 이니셔티브를 발족하는 등 신재생에너지로의 전환은 세계적인 추세다. 하지만 국가만으로는 목적을 달성할 수 없다. 본 논문은 에너지 파트너십 즉 나쁜 거버넌스로 분류된 국가에서도 혁신의 요소(기술혁신과 운영혁신)를 도입하고, 또한 혁신을 가능케 할 수 있는 공공-민간 파트너십을 효과적으로 활용하면 새로운 에너지 공급에 좋은 환경을 제공할 수 있음을 보여주고자 했다. 요컨대, 아프리카 케냐의 스티마코, 에왕안과 아시아 방글라데시의 그라민 샥티 사례에서 나타났던 다양한 연대의 파트너십(기술혁신 및 운영혁신의 파트너십) 분석을 통해 개도국의 거버넌스 한계에도 불구하고 비용을 절감하고, 시장성을 높여 농촌 오지마을에서도 에너지 수급에 성공한 사례를 소개하고 새로운 개발모델 모색에 대한 시사점을 제공하고자 했다.

• 생약학회지
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• 제50권2호
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• pp.141-147
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• 2019

The aim of this study was to investigate the potential of Acanthopanax sieboldianum (Makino) Koidz (ACS) as a potent antioxidant and antidiabetic agent. The antioxidative and alpha-glucosidase inhibitory activities were examined using the methanol extracts and solvent fractions from ACS-leaf and ACS-stem. Antioxidative activities were measured by in vitro methods such as DPPH and ABTS radical scavenging activity and superoxide dismutase (SOD) activity. When the chloroform and ethyl acetate fractions of ACS-leaf and ethyl acetate fractions of ACS-stem were compared with the control, the SOD-like activity was impaired even at the low treatment concentrations. In addition, the ethyl acetate fractions of ACS-leaf and ACS-stem showed alpha-glucosidase inhibition activities at low treatment concentrations. Analysis of the major components in the fractions of ACS-leaf and ACS-stem was also performed using HPLC. Finally, astragalin, isoqurecetin, chlorogenic acid and caffeic acid contents were measured. Based on this work, we propose that ACS-leaf and ACS-stem have great potential as natural antioxidant and antidiabetic materials related to health benefits.

• Ecology and Resilient Infrastructure
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• 제6권1호
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• pp.69-76
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• 2019

생태계는 우리의 생존과 삶의 질을 유지할 수 있게 하여 인간 복지에 직, 간접적으로 기여하고 있다. 그래서 생태적 기능의 계량화 방법이 필요하다. 본 연구에서는 응용생태공학에 생태계서비스를 도입하고 적용하는 것에 대하여 논의하였다. 하천의 경제적 가치, 도시 블루-그린-화이트 네트워크 구축, 생태복원 및 통합 물관리에 생태계서비스 개념 및 평가체계를 적용할 수 있는 방안을 모색하였다. 생태계서비스 개념 틀과 평가는 이해해당사자의 생태계 혜택 이해에 도움을 주고 응용생태공학 적용을 증가시켜 생태적 보호와 복원 가치의 증진에 이용될 수 있다.

• Asian-Australasian Journal of Animal Sciences
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• 제32권10호
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• pp.1548-1557
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• 2019

Objective: To investigate the effects of dietary supplementation with different levels and molecular weights of fungal ${\beta}$-glucan on productive performances, health, carcass traits and meat quality in broilers. Methods: Two hundred and ten of one-day-old chicks with equal sex were assigned to seven experimental groups in $2{\times}4$ factorial arrangement. These groups were supplemented with (0, 10, 30, and 60 ppm) of molecular weight 1-3, 1-6 ${\beta}$-glucan (low or high). High molecular weight ${\beta}$-glucan (H: 943 kDa) was obtained from Ophiocordyceps dipterigena BCC 2073, whereas H with ${\gamma}$-Irradiation treatment was performed to achieve low molecular weight ${\beta}$-glucan (L: 8 kDa). Results: There was no statistical significance in productive performances, apparent digestibility and interaction between fixed factors along 42 days of experiment (p>0.05). A higher caecal amylase activity was present in the group that received L, while there was a dramatic decrease in H and the control groups, respectively (p<0.05). The increase of supplemental dose increased caecal amylase activity (p<0.05). Immunomodulatory effects from L was revealed by the marked increase of phagocytic activity, relative weight of thymus and bursa of fabricius (p<0.05). Similarly, the additive dose at 30 ppm provided the same results, whereas the only significant difference with supplementation at 60 ppm was an increase in phagocytic activity (p<0.05). Interestingly, villi height of broilers fed L was higher than other groups (p<0.05). The treatments did not influence haematology, blood chemistry, antibody production level against vaccination, carcass traits and meat quality (p>0.05). Conclusion: The supplementation of L at 30 ppm was suggested to achieve benefits of immune modulation without adverse effects on other parameters.