• Title/Summary/Keyword: Logistic Support

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A Bike Mode Share Estimation Model and Analysis of the Bike Demand Factor Effects (자전거 수단분담률 추정모형 구축 및 자전거 수요요인분석)

  • Lee, Gyu-Jin;Choe, Gi-Ju
    • Journal of Korean Society of Transportation
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    • v.28 no.3
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    • pp.145-155
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    • 2010
  • As the green transportation mode, revitalization of bike usage attracts remarkable public attention. For the acquirement of effective outcome, however, the concrete and close analysis about bike utilization characteristics should be arranged first. One result by MLTM(2009) is support this opinion; the bike mode share has been decreased whereas 9,170km of the bicycle path was improved(1995~2007). This study analyzed the bike mode share classified by trip types by using the 303,308 data of Household Travel Survey of Seoul Metropolitan Area, 2006. The highest mode share rate was induced by the institute attendee and Officetel resident as 3.75% and 3.13%, respectively. Also this study established the bike mode share estimation model of Seoul by logistic regression, and analyzed related factors and level of effectiveness related bike demand by calculation of odds ratio in terms of logistic regression coefficients. In conclusion, short trips, institutes district, parks, and Officetel residential area oriented policy should be effective on the revitalization of bike usage.

Estimation Model of Electric Energy Consumption on Logistics Center Based on Thermodynamics Theory (열역학 이론 기반의 물류센터 전기에너지 소비량 산출 모형)

  • Cui, Lian;Kim, Young-Joo;Kim, Cheolsun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.10
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    • pp.6799-6806
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    • 2015
  • Electric energy consumption is always followed by the introduction of diversity scale-up and state-of-the-art equipments in logistic centers. In order to analyze the status and the characteristic of the electric energy consumption quantitatively, and also to evaluate the efficiency of the electric energy, this research aims to develop an estimation model of standard electric energy consumption for logistic centers. The proposed model applies the thermodynamics theory so as to effectively reflect the peculiarity that the temperature in the logistic center influences the electric energy consumption. And the model consists of the energy consumed by the refrigerator, which can be subdivided into the heat conducted through the wall, the heat convected by the open doors and the heat lost into the goods, and the electric consumption of the machinery equipments. The model also includes a variety of explanatory variables to support an operator of logistics centers in evaluating the efficiency of energy consumption and establishing improvement strategies for energy efficiency. Application of the model developed in this study is discussed with observed data on energy consumption of a logistics center.

Development of Forest Fire Occurrence Probability Model Using Logistic Regression (로지스틱 회귀모형을 이용한 산불발생확률모형 개발)

  • Lee, Byungdoo;Ryu, Gyesun;Kim, Seonyoung;Kim, Kyongha
    • Journal of Korean Society of Forest Science
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    • v.101 no.1
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    • pp.1-6
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    • 2012
  • To achieve the forest fire management goals such as early detection and quick suppression, fire resources should be allocated at high probability area where forest fires occur. The objective of this study was to develop and validate models to estimate spatially distributed probabilities of occurrence of forest fire. The models were builded by exploring relationships between fire ignition location and forest, terrain and anthropogenic factors using logistic regression. Distance to forest, cemetery, fire history, forest type, elevation, slope were chosen as the significant factors to the model. The model constructed had a good fit and classification accuracy of the model was 63%. This model and map can support the allocation optimization of forest fire resources and increase effectiveness in fire prevention and planning.

Risk Factors Associated with Medication Adherence in HIV/AIDS Patients (한국인 HIV/AIDS 환자의 복약순응도에 미치는 위험 인자 연구)

  • Kyung Sun Oh;Jin-soo Lee;Euna Han
    • Korean Journal of Clinical Pharmacy
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    • v.33 no.4
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    • pp.254-260
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    • 2023
  • Background: Adherence to antiretroviral treatment (ART) is crucial for maintaining the HIV-RNA suppression in patients living with HIV/AIDS. This study aims to analyze the risk factors contributing to low medication adherence among individuals with HIV/AIDS by analyzing data from the Korean HIV/AIDS cohort study. Methods: The dependent variable is ART medication adherence. The depressive symptom and anxiety scores were collected as main independence variables. Covariates included gender, age, transmission route, alcohol and smoking information, and antiviral treatment regimen details. To predict the relationship between ordinal dependent variables and independent variables, an ordered logistic regression analysis was conducted, and odds ratios (OR) were calculated. Results: The results of the ordered logistic regression analysis showed that female was associated with a higher risk of low medication adherence (OR=2.91, 95% CI=1.08, 7.83). Among the subjects who were non-smokers and non-drinkers, the risk of low medication adherence was lower (OR=0.36, 95% CI=0.18, 0.70). Depending on the ART treatment group, individuals taking integrase inhibitor had a lower risk of medication adherence (OR=0.31, 95% CI=0.13, 0.76), and those experiencing depressive symptoms were related with a higher risk of low medication adherence (OR=1.97, 95% CI=1.12, 3.46). Conclusions: The encouragement and emotional support of healthcare professionals are essential for patients living with HIV/AIDS who experience depressive symptoms to maintain ART adherence. Additionally, further research is needed to ensure that HIV/AIDS infected female with concurrent depressive symptoms can achieve appropriate ART therapeutic effect.

A study on the promotion for rail transport in Ui-Wang ICD (의왕 ICD 철도수송 활성화 방안에 대한 연구)

  • Yun, Dong-Hee;Lee, Yong-Sang
    • Proceedings of the KSR Conference
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    • 2010.06a
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    • pp.1603-1614
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    • 2010
  • As the Kyoto protocol and Bali road-map, our country is expected to be included to the emission reduction controlled country of greenhouse gas, so we are now urgent situation to take an action in the level of government. In this research, environment friendly rail logistics and combined transport were treated to meet with the green growth policy of our government. Major problems of Ui-wang ICD suggested in this research are short of yards, unutilized public CY, inconvenience use by non-share holders. It is necessary to improve rail logistic infrastructure, that is, additional expansion of yard, direct operation by KORAIL and regular unloading system are needed. such improvement can not be solved just by the endeavor of business body. Rail logistic infra & Integrated freight terminal has a tendency of SOC, which require tremendous amount of investment, so there are some limit in doing by private sector itself, now it's time to do by the government level. The improvement of rail logistic infrastructure in the level of government is possible by the policy of environment friendly green logistic support which is related with Logistic Policy Basic Law, so government should prepare detailed directives to activate Integrated freight terminal.

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An Empirical Study on Bankruptcy Factors of Small and Medium-sized Venture Companies using Non-financial Information: Focusing on KCGF's Guarantee-linked Investment Companies (비재무정보를 이용한 중소벤처기업의 부실요인에 관한 실증연구: 신용보증기금의 보증연계투자기업을 중심으로)

  • Jae-Joon Jang;Cheol-Gyu Lee
    • Journal of Industrial Convergence
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    • v.21 no.6
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    • pp.1-11
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    • 2023
  • The purpose of this study is to verify the factors affecting corporate bankruptcy by using non-financial information of companies invested by credit guarantee institutions. In this study, 594 companies (525 normal companies, 69 insolvent companies) invested in by the Korea Credit Guarantee Fund from March 2014 to the end of December 2022 were selected as samples. Non-financial information of companies was divided into founder characteristics information, company characteristics information, and corporate investment information, and cross-analysis and logistic regression analysis were conducted. As a result of the cross-analysis, personal credit rating, industry, and joint investment were selected as significant variables, and logistic regression analysis was conducted for those variables, and two variables, personal credit rating and joint investment, were selected as important factors for bankruptcy. In business management, the founder's personal credit and the importance of joint investment in investment support were found out. It will help to minimize bankruptcy if institutions that support investment in SMEs reflect these results in their screening and systematically build cooperative relationships with private investment institutions. It is hoped that this study will provide an opportunity to pay more attention to the factors that affect the bankruptcy of companies that receive direct investment from public institutions.

A Study on Government Support for Logistics Security (물류보안 인증을 위한 정부지원 방안 연구)

  • Lee, DonHee
    • Journal of Korea Society of Industrial Information Systems
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    • v.21 no.6
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    • pp.109-123
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    • 2016
  • This study investigates the importance of government's support for logistics security assurance through certification programs. First, the study analyzed priorities among the requirements of logistics firms through Analytic Hierarchy Process(AHP) and Quality Function Deployment(QFD) approaches. For this process we invited 21 logistics experts to assess the relationships between logistic firms' requirements and government policies regarding logistics security using the house of quality, a set of matrices of QFD. The results of this phase of the study revealed the priorities of logistics firms' goals regarding the diffusion of the government security certification program as follows: integrated logistics security systems(40.3%), strengthening government support systems(32.4%), and operational effectiveness of logistics security certification(27.2%). Second, a relative weights applied QFD method based on AHP was applied to determined the expected outcome of the logistics security certification program. The results indicated as follows: productivity improvement(28.4%), improved level of service(26.7%), logistics cost reduction(21.6%), advanced information systems(19.7%), and improved environmental protection(3.6%). The results of this study provide new insights concerning logistics firms' requirements for supply chain security and the importance of government's support policies through logistics security certification programs.

Socioeconomic Inequalities in Depressive Symptoms among Korean Older Men and Women: Contribution of Social Support Resources (남녀 노인의 사회경제적 우울 불평등: 사회적 지지 자원의 기여)

  • Lee, Jeong;Choi, Kyungwon;Jeon, Gyeong-Suk
    • Research in Community and Public Health Nursing
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    • v.31 no.1
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    • pp.13-23
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    • 2020
  • Purpose: This study explored the contribution of social support resources to the explanation of socioeconomic inequalities in depressive symptoms of older Korean men and women. Methods: Data were derived from Living Profiles of Older People Survey (LPOPS), which comprises a nationally representative sample of non-institutionalized Korean older adults living in the community. The data were analyzed by using multiple logistic regression. The sample consisted of 4,046 men and 6,036 women aged ≥65 years. The Korean version of the Geriatric Depression Scale-Short form (SGDS-K) was employed as an outcome variable. Results: Compared to the older men and women who were in higher socioeconomic status, those in lower socioeconomic status had significantly higher risk of depressive symptoms after adjusting for other covariates. When social support resources were individually included in the base model, each factor contributed to inequalities in depressive symptoms. Social networks explained about 20% of the differential impact of education and 10% to 15% of the differential impact of household income for depressive symptoms in men. Among women, it mitigated 23.6% to 39.0% of education and household income inequalities for depressive symptoms. Social participation contributed to buffer depressive symptom inequalities of 24.0% to 46.3% among men and those of 11.7% to 45.3% among women. Conclusion: Our findings suggest community care nurses acknowledge the value of social support resources to alleviate socioeconomic inequality in depressive symptoms among older men and women.

A Study on the Impact of Researcher's Commercialization Support on the Success of Commercialization after Technology Transfer: A Case of ETRI (기술이전 이후 연구자의 사업화 지원이 사업화 성공에 미치는 영향: ETRI의 사례)

  • Lee, Sangmin;Cho, Keuntae
    • Journal of Technology Innovation
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    • v.25 no.2
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    • pp.35-55
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    • 2017
  • The objective of the study is to examine the impact of researcher's commercialization support on the success of commercialization after technology transfer of public research institutes. Logistic regression analysis was used to analyze the effect of researcher's commercialization support on commercialization success with 204 license agreements from ETRI. As a result, it has been empirically verified that there is a significant impact to the success of the commercialization of transferred technology when the researcher is participating in the commercialization process and transfers the latent knowledge gained in the invention process to the licensed company. The result is suggestive of the effective directions of government's and public research institutes' policy for SME support.

Factors Associated with Drinking Experience, Smoking Experience, and Internet Addiction among Elementary School Students (초등학생의 음주 및 흡연 경험, 인터넷 중독 영향 요인)

  • Kim, Bongjeong
    • The Journal of the Korea Contents Association
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    • v.15 no.6
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    • pp.358-369
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    • 2015
  • This study examined the status of and factors associated with drinking experience, smoking experience, and internet addiction among elementary school students. Cross-sectional data were collected by questionnaire from 1,061 children among the fifth and sixth grades in public elementary schools in Gyeonggi province. The prevalence of drinking and smoking experience, internet addiction of participants was 22.7%, 2.9%, and 4.2% respectively. Multiple logistic regressions showed that the likelihood of drinking and smoking experience, and internet addiction was commonly higher with those who was a male and had higher aggression level. The likelihood of drinking experience was lower with those who had higher family support, while was higher with those who had higher friend support. That of internet addiction was lower with having higher friend and teacher support. Prevention strategies to prevent drinking, smoking, and internet addiction among elementary school students should consider student's gender, control aggression, and enhance social support in family and school environments.