• 한국IT서비스학회지
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• 제16권2호
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• pp.129-138
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• 2017

This paper is concerned with an Internet of Things (IoT)-based unmanned home-delivery box system, in which the system is developed with a prototype using a weight sensor, shock sensor, the Arduino and Raspberry-Pi of open-source hardware platforms. The developed system provides several functions such as a safe storage means, prevention of delivery-theft, and remote control of the home-delivery box, etc. Specifically, the system recognizes the arrival of goods by detecting the weight of deliveries and sends the arrived message of deliveries to the recipient' smartphone, and also controls (i.e., open and close) the locker of the unmanned home-delivery box system remotely with the smartphone. Furthermore, the developed system provides automatically a warning alarm around the unmanned home-delivery box when an external shock is applied to the home-delivery box, and sends a message on the shock to the recipient' smartphone. The major functions of the developed home-delivery box system have been verified in a realistic environment, and confirmed to work well. With the application of the developed home-delivery box system to the homes and offices where recipients are always not to stay, it is expected to significantly improve the safety of delivered goods as well as to effectively prevent the delivery operatives posing as a crime.

• 대한안전경영과학회지
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• 제2권3호
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• pp.61-79
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• 2000

It is very important to delivery timely and safely items in logistics. So, the home delivery service system is introduced by many enterprises. Also, the beginning in 1990's, the rapid increase of automobile increased logistics cost and led to road stagnation. So, the railway transportation use in logistics can be considered. The railway transportation in home delivery service system can overcome the limit of transportation by land. This study evaluate railway transportation in home delivery service system by economical efficiency and timeliness.

• 한국경영과학회지
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• 제34권1호
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• pp.123-132
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• 2009

Third Party Logistics (TPL) providers offer outsourced logistics services to companies for part or sometimes all of their supply chain management. Although TPL market is increasing rapidly and drawing much attention from various aspects, it is not easy to find the researches dealing with relations between TPL providers and home delivery companies dealing with small-sized cargo. This study focused on service dimensions which TPL providers consider when they choose a home delivery company. In this paper, we found five factors of service dimensions including delivery charge, logistics management shills, partnership, and then investigated which dimensions affect TPL providers' preference. In addition, we showed that the logistics management skills are more important than the delivery charge which has commonly been considered the most important factor. This study offers managerial insights on TPL providers' prefer once which we can hardly find in theoretical and practical perspective.

• 대한안전경영과학회지
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• 제13권3호
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• pp.97-105
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• 2011

In order to determine home delivery service routes, conditions specified for each parcel such as customer-assigned delivery times and parcel contents should be considered, so the conventional route search algorithms have some limits to be applied for home delivery services. In this study, a multi-purpose route searching algorithm is suggested in order to deal with every requirement of deliveries that vary in delivery distances, contents and appointed times. A simulation study to verify the performances of the system with example data of Seoul and Kyungki provinces shows that it significantly improves the customer satisfaction and the productivity of delivery businesses.

• 대한간호학회지
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• 제29권3호
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• pp.507-517
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• 1999

The purpose of this study is to understand home care needs for parturient women and neonates up to the postpartum period. Methodology : The design of this study is a cross-sectional survey study. The subjects of this study are 88 postpartum mothers who delivered a first baby during the period from December 1996 to July 1997. Data collection was done with a structured questionnaire by mailing. Data were collected at the point of six months after delivery. A structured questionnaire composed of items related to home care needs. Data analysis was done with descriptive statistics. The study results are as follows : .The highest need was personal hygiene(93.2%) for the parturient women, and the peak period was the two week period after delivery. .The most frequent maternal needs regarding neonates were cord care (72.4%) during the first week, elimination(67.9%) during the first two weeks, baby crying(88.3%) and sleeping pattern(71.5%) at one month after delivery, and baby temperament(30.4%) at sixth months after delivery. .The mothers requested home care methods such as written material for self health care (35%) and counseling(34%) and direct home visits (5%) for neonate care. - Conclusion : The most important period for home health care needs was one week after delivery, and the health care needs for neonate temperament, behavior and sleeping pattern rose rapidly at the period of 6 months after delivery. Therefore it could be concluded that the postpartum home care should be done by those, written material should be enhanced for parturient women care, and counseling enhanced for neonate care.

• 한국산업정보학회논문지
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• 제13권2호
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• pp.8-17
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• 2008

모바일 단말기 관리를 수행하는 방법이나 프로토콜 등이 제조회사나 ISP 마다 달라서 효율적으로 관리하기가 매우 어려웠기 때문에, OMA(Open Mobile Alliance)에서 OMA DM(Device Management)이라는 단말기 관리 표준안을 제안하였다. 본 논문에서는 OMA DM개념을 실제 응용 분야에 적용하기 위한 연구의 일환으로써, OMA DM에이전트를 이용한 택배 서비스 관리 프로그램을 설계 구현하였다. 본 논문에서 개발한 택배 서비스 관리 프로그램은 SK-WIPI Clet 환경에서 개발하였으며, SyncML Tool Kit 4.3, SK WIPI SDK 및 Embedded Visual-C++언어를 사용하였다. 대부분의 모바일 단말기마다 설치될 것으로 예상되고 있는 OMA DM 시스템을 이용함으로써, 본 논문에서 제안한 택배 서비스 관리 프로그램은 별도의 하위 계층 소프트웨어를 개발하지 않아도 되는 장점이 있다. SK 위피 에뮬레이터 1.1을 사용하여 이 연구의 정당성을 검증하였는데, 이 에뮬레이터는 모바일 단말기와 동일한 실행 환경을 제공한다. 실험을 통하여, 본 논문에서 개발한 택배 서비스 관리 프로그램이 제대로 동작함을 알 수 있었다.

• 대한영양사협회학술지
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• 제19권3호
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• pp.236-252
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• 2013

The purpose of this study was to assess the microbiological quality of home-delivered meals during production and delivery for children from low-income families. Production flows from a facility in Seoul that provides home-delivered meals were analyzed and the time-temperature of the food was measured. Microbiological assessment was performed for the production environment, personal hygiene, and food samples at each production and delivery step based on the process approach. It took 2 hours or longer from completion of production to meal delivery. An aerobic colony count (ACC) and coliform were not detected at knives, cutting boards, and dish towels. However, ACC (at pre-preparation, preparation, and packing areas) and coliform (at the preparation area) were detected on the hands and gloves of employees. Air-borne bacterial counts varied according to day and preparation area (ND~6 CFU/plate/15 min). Food temperatures, on the completion of production and meal delivery, fell into temperature danger zones. ACC and coliform counts of raw ingredients did not decrease after pre-preparation (washing and sanitizing) for menus involving food preparation with no cook step. ACC decreased after cooking step for menus of food preparation with cook step, but the ACC of the stir-fried and seasoned dried filefish fillet on the completion of cooking was too numerous to count due to improper heating. The ACC of seasoned young Chinese cabbages (a menu with complex food preparation) increased during delivery (from 2.5 log CFU/ml to 5.0 log CFU/ml). This qualitative assessment of foodborne pathogens revealed that B. cereus was detected in vegetable and meat product menus. These results suggest time-temperature control is necessary during production and delivery and management guidelines during production of home-delivered meals are provided for safe production.

• 한국산업정보학회논문지
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• 제12권4호
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• pp.89-96
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• 2007

온라인 시장의 증가로 택배의 물량이 나날이 늘어나고 있다. 이러한 환경은 수많은 택배회사들의 출현을 가져와서 치열한 고객유치 경쟁을 유발하고 있다. 그러므로 본 연구에서는 개미 알고리즘을 이용하여 보다 체계적으로 최단 택배배송경로를 찾아 주는 시스템의 개발에 그 목표를 두고 있다. 개발된 시스템은 숙련된 택배기사는 물론 마을 위치에 익숙지 않은 초보 택배기사에게도 배송경로탐색 및 배송시간에 큰 도움을 줄 것이며, 고객은 택배경로를 사전에 알 수 있어서 택배에 대한 신뢰성과 만족도를 높일 수 있을 것이다.

• 한국멀티미디어학회논문지
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• 제10권12호
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• pp.1612-1621
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• 2007

In this paper, we introduced our designed TDMA (Time Division Multiple Access) based MAC (Medium Access Control) protocol for Home Networks called HomeTDMA. We have implemented and tested it in a test bed using crossbow motes and TinyOS. We also have compared HomeTDMA and CSMA (Carrier Sense Multiple Access) in terms of space and time complexity, channel access time, delivery success ratio, and throughput. Based on our results, HomeTDMA has an advantage over CSMA on channel access time, throughput and delivery success ratioIn the case of complexity, HomeTDMA is more complex compared to CSMA. Thus, CSMA is more appropriate in wireless sensor networks (WSNs) where memory, energy, and throughput are important parameters to be considered. However, HomeTDMA has a natural advantage of collision free medium access and is very promising for home networks where a reliable transmission or data transfer and congestion control is highly preferred.

• 대한가정학회지
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• 제49권9호
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• pp.73-81
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• 2011

The purpose of this study was to find out how price perception and the site's delivery system affected consumer satisfaction in surrogate internet shopping for apparel products. A survey questionnaire was used to collect information from 233 respondents who had experience in purchasing apparel products from online venues within the preceding 6 months. Collected data underwent descriptive analysis, factor analysis, and regression analysis. Results showed that the price perception and the delivery system was influenced by three factors. Both price perception and the delivery system factors showed a significant difference depending on the gender of consumers. Also, according to the regression results, both price perception and the delivery system had a positive effect on consumer satisfaction in surrogate Internet shopping mall for apparel products.