• 한국포장학회지
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• 제25권2호
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• pp.23-29
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• 2019

The volume of parcel delivery is steadily increasing with the rapid growth of the global online e-commerce market. However, a large amount of packaging materials used for these parcel delivery is finally causing environmental problems as waste. The rapid increase of these packaging waste has been making many countries to research ways to reduce the generation of distribution packaging waste. In this study, we have measured the empty space ratio for 131 packagings of parcel delivery purchased through the several domestic online stores in order to investigate the present situation in connection with the degree of excessive or overpack in korean parcel delivery packagings, so that 64 packagings were exceeded 50% in the empty space ratio. And we have suggested ways to reduce the generation of distribution packaging waste raised by e-commerce-based parcel delivery through analyzing the previous research and case studies ; one is to optimize and minimize the packaging design by safe transit test(field-to-lab test), another is to develop a reusable & returnable transport packaging and system applicable in the domestic supply chain, the other is to regulate directly with a policy.

• 디지털산업정보학회논문지
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• 제6권3호
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• pp.221-230
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• 2010

Citizens' demand, which has been previously focused on welfare, is now expanding to include elements for higher quality of life such as employment, housing, culture, and sports. Accordingly, the government, with an aim of effectively delivering resident services that satisfy various demands, is committed to transforming the central government-oriented service system into the integrated service system based on public-private partnership. The government is also dedicated to expanding services to 8 areas including not only welfare but also healthcare, employment, housing, education, sports, culture, and tourism, which are directly related to everyday lives of residents. This project is designed to support such reforms in the citizen service delivery system in order to enhance quality of life of local residents. This study is to draw implications from analysis for implementing the citizen service integrated information system in order to reform the citizen service delivery system effectively through examinations and analyses of citizen services provided by the central government. Especially focus on public utility charges depreciation simplification citizen service. Its implications are expected to offer a real contribution for central and local Governments that want to increase the productivity of implementing eGovernment service.

• 한국정보처리학회논문지
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• 제6권11S호
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• pp.3289-3298
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• 1999

E-mail system is the most important service that enterprises and normal users in internet use. However, because a data security is not satisfied yet, and E-mail system with security service is essential. In this paper, We implemented the E-mail system with Certification of Delivery that was not provided in prior mail system with basic security services and can prove that sender's document is properly sent to the intended receipt. And an implementation of the system used Java Cryptography API.

• 한국안전학회지
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• 제37권1호
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• pp.70-77
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• 2022

The total number of Korean restaurants using delivery applications has substantially increased from 7.6% in 2018 to 11.2% in 2019. In 2020, the gross sales in the food delivery service market reached approximately 17 trillion won; this amount is virtually six times that in 2017 (i.e., 2 trillion won). Meanwhile, the annual average death toll of motorcycle riders increased by 3.5%, whereas the number of deaths due to other traffic accidents decreased by 8.2%. Consequently, the foregoing has become a critical social problem. Despite the continuing increase in the number of delivery riders due to the rapid expansion of the delivery industry, no appropriate safety management system has been established. Moreover, the government is experiencing difficulties in assessing the exact situation because of the absence of competent authority. In this study, fundamental data on the characteristics of delivery work and motorcycle accidents were collected through surveys and interviews; then, the influencing factors of traffic accidents were analyzed. Different influencing factors were identified: work experience as a rider; number of deliveries; whether to accept delivery requests in transit; manner of accepting delivery requests; and traffic law violations, such as speeding (for faster delivery) and running a red light. Because the motorcycle delivery industry has a relatively low job-entry barrier (i.e., special qualifications are not required), the riding skills of riders must be improved, and delivery companies must be technically developed to achieve a safe working environment. The results of this study can be utilized as fundamental data for system development or structural improvement of the delivery industry.

• Journal of Pharmaceutical Investigation
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• 제37권5호
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• pp.291-295
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• 2007

Prostaglandin $E_1\;(PGE_1)$ was formulated as two self-microemulsifying drug delivery systems (SMEDDS) composed of Cremophor $EL^{(R)}$ or Cremophor $ELP^{(R)}$ as a surfactant, ethanol as a cosurfactant and Labrafac $CC^{(R)}$ as an oil to develop liquid preparation for the treatment of erectile dysfunction. In pseudo-ternary phase diagram, viscous gel area and microemulsion area were defined. In the measurement of viscosity, the viscosity of two formulations increased gradually upon the addition of water and it decreased from the water contents over 40%. With excessive water, the present systems formed a microemulsion spontaneously. From these results, rte could expect that the present liquid $PGE_1$ SMEDDS formulations might stay within the urethra in the viscous state when contacting the moisture of the urethra and can be easily eliminated by urination. In long-term stability study, we could select one formulation more stable at the shelf storage condition of $4^{\circ}C$.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1440-1445
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• 2009

Clients demands have been changed by construction circumstances such as high-technology, megaprojects, and the complexity of construction. Advanced foreign nations have already introduced and applied new project delivery systems (i.e, CM, DB, etc.) to deal with the change of such that. Korea has also promoted variation of the delivery systems for the progressive measure to the rapid changeable situation. Even though government has made his efforts as stated above, some clients have uniformly used those to public construction projects. That is because there are not selection criteria of project delivery system for clients. Therefore, this study presented the selection criteria of project delivery system based on project types in the public large construction projects. In addition, the study has verified the viability of the presented models through consultation with professionals and experts.

• 무역상무연구
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• 제40권
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• pp.147-167
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• 2008

This paper investigates changing business transaction under the e-commerce environment and their implications on freight transport industry with some case studies. It shows that an efficient and reliable delivery system is essential for e-commerce as business industries are faced with the stricter and more diversified demands of customer. In addition, many aspects of business practices such as small batch, customized production and just-in-time distribution in the e-commerce environment, in turn, bring about a number of changes in the volume and service patterns of freight transport. E-commerce requires longer transport distances and often higher delivery frequencies. It also entails to a certain extent a modal shift towards truck and air freight transport modes. On the one hand, the logistical requirements of e-commerce goods may stimulate greater complexity in existing supply chain management, causing higher costs. However it is true that the increased visibility of goods through more efficient information flow allows more efficient and effective transport management in the logistics system.

• 한국응용과학기술학회지
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• 제39권5호
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• pp.692-700
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• 2022

본 연구에서는 O2O 화장품 배달 서비스 앱의 e-서비스품질이 만족과 충성도에 미치는 영향을 알아보고자 하였다. 이를 위해 설문지 총 210부를 수집하여 통계패키지 SPSS 25.0으로 빈도분석, 탐색적 요인분석, 신뢰도 분석, 상관관계분석, 회귀분석을 실시하였으며 주요 결과는 다음과 같다. O2O 화장품 배달 서비스 앱 e-서비스품질의 구성요소인 효율성, 주문이행성, 시스템이용가능성, 프라이버시 모두 만족과 충성도에 유의한 영향을 미치는 것으로 나타났다. 또한, 만족 역시 충성도에 유의한 영향을 미치는 것으로 나타났다. O2O 화장품 배달 서비스 앱을 이용하는 소비자를 증가시키기 위해서는 만족과 충성도에 가장 큰 영향을 미치는 시스템이용가능성과 효율성을 높여야 한다. 이를 위해 소비자가 O2O 화장품 배달 서비스 앱을 이용하는 동안 빠른 접속과 끊김이 없는 쾌적한 환경을 제공해야 하고 효율적으로 사용할 수 있도록 시스템을 구축해야 한다.

• 대한약학회:학술대회논문집
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• 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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• pp.236.1-236.1
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• 2002

Mucosal administration of drug or therapeutic gene is emerging as a new route of delivery for systemic and local therapeutics. Previously. in situ gelling system has been applied to chemical drug such as acetaminophen. insulin. prostaglandin E1. and clotrimazole. Plasmid DNA has not been delivered in form of in situ gelling vehicles. To improve the intranasal absorption of plasmid DNA. we designed delivery systems composed of provide of in 냐셔 gelling and mucoadhesive polymers. (omitted)

• Carbon letters
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• 제9권4호
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• pp.283-288
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• 2008

The composites of temperature-sensitive hydrogel and activated carbons were prepared in order to improve both the mechanical strength of hydrogel matrix and the loading capacity of drug in a hydrogel drug delivery system. The swelling of composite hydrogel was varied depending on the temperature. Both the swelling and the release behavior of the composite hydrogel were varied depending on the kind of activated carbon. The release behavior showed the high efficiency which is important for practical applications.