• 한국지리정보학회지
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• 제20권4호
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• pp.77-88
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• 2017

본 연구에서는 우리나라 대나무 자원의 평가를 위하여 GIS 기반의 인벤토리를 구축하고 활용 방안을 제안하였다. 대나무 자원의 일반현황, 임황 및 지황 정보, 입지토양 정보 등의 인자를 추출하고 현지표본점 조사를 통해 획득한 자료를 활용하여 면적 및 축적량을 산출하여 통합하였다. 구축된 인벤토리는 방치되어 있는 대나무 자원의 건강성 및 지속성 확보는 물론 대나무의 기능 증진을 위한 장기적인 목표와 방향을 설정할 수 있는 의사결정 도구로 활용할 수 있을 것으로 판단된다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2003년도 추계학술대회 논문집(III)
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• pp.322-326
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• 2003

Dae-gu subway accident raise whole points in connection with safety facilities and operating of national urban transit system like rolling stocks, facilities, management of human. Rolling stock is made every effort for improvement of performance, guarantee of comfortableness, insurance of economical efficiency. But Security like safety of fire is not thoroughgoing enough. Especially, interior material has used although it is not prove its degree of safety. it is a main cause of Dae-gu subway accident. Safety regulation of urban transit vehicle that legislate for security in March 2000 does not applied manufacturing vehicles before in 2000. It has be prescribed in the regulations that incombustibles must be used. But detailed test standard related with incombustibles is not prescribe. Thus that regulation be required reinforcement of detailed test standard. Main cause of Dae-Gu subway accident is a fire in vehicle. However, many defects are found in infrastructure and operating vehicle of urban transit, such as inexperienced disposal of driver and CCC in early stage of the fire accident, unskilled opening and closing doors, insufficient escape facilities and safety facilities of a station house and tunnel, and incomplete communication system between vehicle and CTC, extraordinary step. Thus the aims of this study are prevention of urban transit accident, improvement plan of safety driving, and proposal of quick action plan through analysis of total faculty of vehicle.

• 서비스연구
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• 제5권2호
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• pp.35-49
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• 2015

본 연구는 금리추세에 따른 국내손해보험회사들의 자산운용 실태를 분석하여 문제점을 도출하고, 자산운용전략에 대한 방향을 제안하고자 2009년~2014년까지의 자료를 바탕으로 연구하였다. 손해보험회사들의 자산현황 및 운용자산 내역, 자산배분실태, 유가증권 내역, 총자산수익률을 시계열 분석하였으며, 금리 주가와 총자산수익률의 상관관계 분석을 실시하였다. 연구결과는 안전자산인 국공특수채의 비중은 증가한 반면에 Credit물인 금융회사채 및 위험자산인 주식의 비중은 감소하여 수익성 보다 안정성 위주로 자산운용을 하고 있었다. 금리하락 추세에 따라 총자산수익률도 같이 하락하고 있었으며, 주가지수 추이와 총자산수익률 추이는 일치하지 않았다. 금리와 총자산수익률 간에는 높은 양(+)의 상관계수가 산출되었지만, KOSPI 주가지수와 총자산수익률 간에는 상관계수가 음(-)으로 나타났다.

• 산업융합연구
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• 제18권5호
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• pp.1-13
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• 2020

본 연구는 투자자 입장에서 전환사채(CB)의 투자효과가 어느 정도 인지를 규명하고 효율적인 투자방안을 투자자들에게 제시하는 것이 연구목적이다. 연구방법은 2015년부터 2020년 6월까지 발행한 CB에 대한 표면이자율, 만기이자율, 채권만기일, 전환가격, 전환일 등을 조사한 후, 전환일 이후 일별주가변동과 연결하여 CB에 대한 투자효율성 및 주식전환효과가 어느 정도인지를 파악하였다. 연구 결과, 전환가격초과일수비율이 전환 가능한 날짜의 1/4 정도에 불과하여 CB의 투자효율성은 낮은 것으로 분석되었다. 전환일수익률은 평균 -6.3%, 만기일수익률은 평균 -5.2%여서 평균적으로 마이너스 수익률을 보여 투자자 기대와 다르게 투자효과가 산출되었다. 전환일수익률이 마이너스인 종목수가 플러스인 종목수 보다 2.4배, 만기일수익률이 마이너스인 종목수가 플러스인 종목수 보다 3.7배 많아서 CB의 주식전환 기대 수익률은 낮은 것으로 분석되었다.

• 펄프종이기술
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• 제35권4호
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• pp.8-16
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• 2003

The objective of this study was to investigate the potential application of the separated refining system in the papermaking process using cotton pulps. The cotton staple and linter fibers were expected to show a great difference in their refining responses due to their morphological and physical differences. Experiments were conducted to examine the differences in flocculation tendency, CED viscosity, fiber length, handsheet properties and the SEM surface images between staple and linter fibers at a given refining degree. These fibers were also subjected to separated refining in a laboratory-scale beater and in a mill-scale refiner as well. The effect of the separated refining on the refining rates and papermaking properties were evaluated. Results obtained are summarized as follows: 1. Fiber flocculation tendency of cotton staple was estimated to be significantly greater than that of linter fibers; 2. The staple fibers showed higher cellulose DP, longer fiber length and higher sheet strength at a given refining degree compared to linter fibers, but remarkably slower refining rate was observed; 3. The separated refining system exhibited a significant increase in sheet strengths, especiauy in folding endurance, with an increase in the fibrillation on the surface of staple fibers, but slightly lower or comparable fiber length after refining to the mixed refining system; 4. Similar results were also obtained from the machine trial in which about 7-8％ energy saving effects were achived in the separated refining system. On the basis of the results observed in this study, it was concluded that a significant increase in paper strength and a substantial reduction in refining energy consumption could be achieved using the separated refining system for the cotton staple and linter fiber stock refining.

• 공업화학
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• 제9권5호
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• pp.754-757
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• 1998

본 연구는 탈묵펄프 공정의 과산화수소 보존표백시 과산화수소 안정제 Versenate PS에 의한 silicate 대체효과를 검토하였다. 대체 가능성을 파악하기 위하여 silicate 및 Versenate PS 처리 표백시 전처리와 가성소다의 최적화 실험을 시행한 후 잔류 과산화수소의 함량과 백색도를 측정하였다. 얻은 결과를 요약하면 다음과 같다. 1. Silicate 처리 표백시 가성소다의 최적농도는 2.5~3.0%였다. 2. Versenate PS처리 표백시 가성소다의 최적농도는 1.0~1.5%였다. 3. Versenate PS 단독 처리만으로는 만족할 만한 표백효과를 나타내지 못했다. 4. Versenate PS 처리 표백시에는 silicate양을 상당량 줄일 수 있다. 5. DTPA로 전처리 하는 것이 좀 더 높은 표백효율을 나타내었다.

• 산업경영시스템학회지
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• 제44권3호
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• pp.165-175
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• 2021

As the advent of the Fourth Industrial Revolution and Information Age, companies are in the state of infinite competition due to the rapidly changing technological environment and fierce competition. In this situation companies are making efforts to gain the competitive advantage by introducing information systems. Supply Chain Management (SCM) is considered a method to gain a competitive edge in rapid change. In fact, companies that already have introduced the SCM system are achieving company renovation with positive effects such as increase of sales stock reduction on-time delivery cost reduction and improved efficiency. This study was started to investigate the resistance that occurs in introducing the SCM system for small and medium-sized manufacturing industries that have not yet introduced the SCM system despite the importance of the SCM system, and to check the effect on the intention of the introduction. As the result of this study, the first is that the company has the higher technological innovation, the more positive the effect on Relative advantage Compatibility Perceived risk, Complexity. Second, The compatibility of the SCM system was rejected in innovation resistance, but it is adopted with the highest impact in the introduction intention. In addition, the mediating effect of innovation resistance was also rejected, confirming that if the SCM system is compatible for the company, it doesn't affect the resistance and is the biggest factor to consider in the introduction of the SCM system. Third, the perceived risk of the SCM system doesn't directly affect the intention to introduce, but has an indirect effect when mediation innovation resistance.

• The Journal of Asian Finance, Economics and Business
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• 제8권1호
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• pp.457-470
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• 2021

The banking system provides a number of important functions for the economy and is also the lifeblood and financier of the economy in each country. Large amounts of idle money have not been exploited by banks; however, banks still depend on loans, including loans from foreign banks, to meet the growing demand, as such, for banks, the cost of capital is high, the stability and business efficiency are low and banks have not promoted their internal resources to grow steadily. To achieve the goal, this research analyzes the factors affecting the choice of bank for the deposit decisions of customers in Vietnam. The study used a sample data of 250 individuals and SPSS software was used to analyze the data. The results showed that customer policy has a positive effect on customers' deposit decisions in a bank, and this is new evidence regarding behavioral theory in the case of Vietnam. Results further demonstrated that other factors such as employee image, brand, interest rate, relative influencing, and transaction time positively impact the choice of bank for the deposit decisions of customers. However, the bank's promotion strategies had no impact on the choice of bank for the deposit decisions of customers. Besides, employee image is the most influential factor in the deposit decisions, followed by the bank's brand and interest rate.

• 한국융합학회논문지
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• 제13권4호
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• pp.613-623
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• 2022

환의를 포함한 병원 직물은 입원하는 환자가 반드시 접하게 되는 재고 물품으로 매일 일정량 이상의 공급과 소모가 지속적으로 이루어진다. 하지만 직물을 공급 및 이용하는 과정이 비효율적으로 운영되어 그 개선에 대한 요구도는 높으나 상대적 관심도는 낮은 실정이다. 병원 내 직물 소비, 제공 과정에 대한 프로세스 청사진 기법을 적용하여 분석한 결과 간호사의 직물에 대한 업무 부담, 환자의 만족도 저하, 감염의 위험성 등의 문제가 발생할 수 있는 취약점이 확인되었다. 임상실무자 설문, 델파이 기법을 통한 자료 분석을 기반으로 서비스 청사진 기법을 통하여 자동화된 프로세스 개선안을 개발하였다. 직물 소비 제공 프로세스의 개선안을 도입하였을 때 기대효과는 자동화 서비스를 이용한 환자들의 평균적 대기시간의 감소, 간호사의 직물 관련 행정적 업무 부담 감소, 체계적인 직물 수량관리를 통한 프로세스 효율성 상승, 직물 보관소 내 접촉 주체 제한에 따른 감염 관리 효율성 상승을 기대할 수 있다.

• Earthquakes and Structures
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• 제22권1호
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• pp.25-38
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• 2022

The RC private constructions represent a large part of the housing stock in the north part of Algeria. For various reasons, they are mostly built without any seismic considerations and their seismic vulnerability remains unknown for different levels of seismic intensity possible in the region. To support future seismic risk mitigation efforts in northern Algeria, this document assesses the seismic vulnerability of typical private RC constructions built after the Boumerdes earthquake (May 21, 2003) without considering existing seismic regulation, through the development of analytical fragility curves. The fragility curves are developed for four representative RC frames in terms of slight, moderate, extensive, and complete damage states suggested in HAZUS-MH 2.1, using nonlinear time history analyses. The numerical simulation of the nonlinear seismic response of the structures is performed using the SeismoStruct software. An original intensity measure (IM) is proposed and used in this study. It is the zone acceleration coefficient "A", through which the seismic hazard level is represented in the Algerian Seismic Regulations. The efficiency, practicality, and proficiency of the choice of IM are demonstrated. Incremental dynamic analyses are conducted under fifteen ground motion accelerograms compatible with the elastic target spectrum of the Algerian Seismic Regulations. In order to cover all the seismic zones of northern Algeria, the accelerograms are scaled from 0.1 to 2.5 in increments of 0.1. The results mainly indicate that private constructions built after the Boumerdes earthquake in the moderate and high seismic zones with four (04) or more storeys are highly vulnerable.