• Journal of Korean Library and Information Science Society
• /
• v.29
• /
• pp.171-212
• /
• 1998

In this study, the concept, developments and the present situations of an electronic document delivery services, projects and systems are examined. Also the implications of an electronic document delivery services in the library and the future of the services are studied. Some conclusions and a few suggestions derived from the study are as follows : (1) An electronic document delivery services, one of the most innovative methods for delivering the needed materials to a researcher is now being incorporated into an important part of today's information industries. (2) The technological developments have made it possible to deliver nearly all the document formats electronically, and can make the shortest turnaround time to be 30minutes. The technology has also made it possible to develop user-friendly document delivery services by providing the various methods of requesting of, delivering of and charging for the materials. (3) Different types of institutions have made researches, tests, developments and implementation of an electronic document delivery techniques with different features. (4) The issues of copyrights and standards involved in an electronic document delivery still remain as the problems to be solved. (5) The increase and development of patron-initiated document delivery services have and will have some impacts on the library services with the possibility to pass by the librarians intermediation, but to deliver the materials directly to the end-users. (6) The library could take the outside electronic document delivery services as an opportunity. Accordingly, in order to incorporate this services in the interlibrary loan, collection development and other library services, the library should establish appropriate policies, guidelines and management strategies related to the operations. (7) In order to maximize the use of the electronic document delivery services, the library should provide an appropriate education for the librarian and users to have knowledge and skills on the changing techniques of the electronic document delivery and on the various features as well as changing mechanisms by each system and service.

• Journal of Korean Institute of Industrial Engineers
• /
• v.35 no.2
• /
• pp.160-170
• /
• 2009

This paper studies a vehicle routing problem variant which considers customers to require simultaneous delivery and pick-up under time windows(VRPSDP-TW). The objective of this paper is to minimize the total travel distance of routes that satisfy both the delivery and pick-up demand. We propose a heuristic algorithm for solving the VRPSDP-TW, based on the ant colony system(ACS). In route construction, an insertion algorithm based ACS is applied and the interim solution is improved by local search. Through iterative processes, the heuristic algorithm drives the best solution. Experiments are implemented to evaluate a performance of the algorithm on some test instances from literature.

• Electronics and Telecommunications Trends
• /
• v.38 no.3
• /
• pp.11-19
• /
• 2023

Drones, which were early operated by remote control, have evolved to enable autonomous flight by combining various sensors and software tools. In particular, autonomous flight of drones was possible since the application of GNSS-RTK (global navigation satellite system with real-time kinematic positioning), a precision satellite navigation technology. For instance, unmanned drone delivery based on GNSS-RTK data was demonstrated for pizza delivery in Korea for the first time in 2021. However, the vulnerabilities of GNSS-RTK should be overcome for delivery drones to be commercialized. In particular, jamming in the navigation system and low positioning accuracy in urban areas should be addressed. Solving these two problems can lead to stable flight, takeoff, and landing of drones in urban areas, and the corresponding solutions are expected to establish a hybrid positioning technology. We discuss current trends in hybrid positioning technology that can either replace or complement GNSS-RTK for stable drone autonomous flight.

• Journal of the Korean Institute of Plant Engineering
• /
• v.23 no.4
• /
• pp.29-38
• /
• 2018

Through process quality information, the time required for process quality analysis has been drastically shortened, the process defect rate has been reduced, and the manufacturing lead time has been shortened and the on-time delivery rate has been improved. Therefore, The purpose of this study is to develop a quality information analysis system model that effectively shortens the time required for process quality analysis in automobile safety belt parts manufacturing process. As a result of experiments on communication operation between manufacturing execution system (MES) quality server, injection machine control computer, injection machine programmable logic controller (PLC) and terminal, in analyzing quality information, the conventional handwriting input method took an average of 20 minutes, but the new multi-network method took about 2 minutes on average. In addition, the process defect rate was reduced by 13% and the manufacturing lead time was shortened from 28 hours to 20 hours. The delivery compliance rate improved from 96 to 99%.

• Korean Parent-Child Health Journal
• /
• v.4 no.1
• /
• pp.56-67
• /
• 2001

The purpose of this study was to recognize and compare the concrete factors(perception of painless delivery, Strength of labor pain, the time of labor, APGAR score, satisfaction of painless delivery) on primiparae with and without painless delivery. The subjects were 100 primipara with painless delivery and 100 without painless delivery who had delivered at K university's general hospital in Daegu city. The data that were collected from May. 20, 1998 to July. 30 analysed by the SPSS program. The results of the study were summarized as follow; 1) As a result of the perspective of the painless labor, the mean of primiparae with painless labor was higher than primiparae without painless labor. It was statistically significant(t=-2.63, p=0.0093). 2) As a result of the strength of labor pain, the mean of primiparae without painless labor was higher than primiparae with painless labor. And it was statistically significant(t=17.074, p=0.000). 3) As a result of comparison to the time of labor, In the 1st stage, Without painless labor group was higher than the other (t=256, p=0.0114). In the 2nd stage, with painless labor group was higher than the other(t=-2.13, p=0.0346). But in the 3rd stage, there was no significant differences between two groups. 4) As a result of measuring APGAR score, there was no significant differences. 5) As a result of measuring the satisfaction of painless labor in painless labor group, 'satisfied with painless labor' is 77%, but 'unsatisfied with explanation from health care giver' was 33%. On the basis of above findings, the following is suggested ; It is needed a extended study which are designed for multiparae. And also we suggested that independent nursing-intervention program has to be developed for controlling the labor pain that must lead to positive labor experiences.

• The KIPS Transactions:PartC
• /
• v.11C no.1
• /
• pp.99-108
• /
• 2004

In this paper, the performance of switched ethernet networks with different topologies as an industrial control networks is analyzed. The switched ethernet eliminated data collisions on the network and can be used to transmit real-time data. While the amount of data on the network is small compared to the computer networks, the industrial control networks require the real-time data delivery. In this paper, we analyze and compare the network performance of switched ethernet networks with linear and tree topologies whether they satisfy the real-time data delivery requirement needed to be used as the industrial control networks.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
• /
• v.20
• /
• pp.63-82
• /
• 2003

The time of examination of buyer in international sales contract is very significant, because the time is related with the period of claim in buyer's aspect. From the legal point of view, the time of delivery, the time of examination and the time of quality decision should be in accord. But the buyer, whose main place of business is located in importing country, wants to examine the goods in his own country. Therefore in CIF or FOB Contract, the place of delivery and the place of examination are divided. Thus the CISG, the Common Law System and the Civil Law System including Korean Law stipulate the buyer's examination at the destination if the sales contract involves carriage of the goods. This author, from the buyer's perspective, would like to make the following suggestions in regard to the time of examination when the sales contract is made. First, the time of examination and the time of quality decision should be in accord, even though the time of delivery is different. Second, the buyer should clearly indicate the time, the place, the inspector, the particulars and the burden of proof in regard to examination when contracting. Third, the buyer should also clearly indicate the period of notice for the lack of conformity in Claim Clause of sales contract, which should be counted from the time of examination. Fourth, the buyer should remember that he many lose the right to rely on the lack of conformity of the goods if he does not give the seller notice thereof within the stipulated time or reasonable time. Finally, if the buyer wants, to examine the goods at the place of shipment, it is desirable for the buyer to designate internationally recognized inspection organization like SGS.

• IE interfaces
• /
• v.13 no.3
• /
• pp.396-404
• /
• 2000

For most order-based production, it is important to meet urgent orders from important customers while maintaining high on-time delivery rate for successful supply chain management. In this paper, we propose an approach and a structure of planning system to implement Capable-To-Promise which promises the delivery time to the received order. We suggest and compare a few alternative order receiving policies for CTP.

• Health Policy and Management
• /
• v.27 no.3
• /
• pp.229-240
• /
• 2017

Background: This study purposed to analyze the spatial accessibility of women in childbearing age to the healthcare organizations (HCOs) providing delivery services in Gangwon-do. Methods: Network analysis was applied to assess the spatial accessibility based on the travel time and road travel distance. Travel time and travel distance were measured between the location of HCOs and the centroid of the smallest administrative areas, eup, myeon, and dong in Gangwon-do. Korean Transport Database Center provided road network GIS (Geographic Information System) Database in 2015 and it was used to build the network dataset. Two types of network analysis, service area analysis and origin-destination (OD)-cost matrix analysis, applied to the created network dataset. Service area analysis defined all-accessible areas that are within a specified time, and OD-cost matrix analysis measured the least-cost paths from the HCOs to the centroids. The visualization of the number of the HCOs and the number of women in childbearing age on the Ganwon-do map and network analysis were performed with ArcGIS ver. 10.0 (ESRI, Redlands, CA, USA). Results: Twenty HCOs were providing delivery services in Gangwon-do in 2016. Over 50% of the women in childbearing age were aged more than 35 years. Service area analysis found that 89.56% of Gangwon-do area took less than 60 minutes to reach any types of HCOs. For tertiary hospitals, about 74.37% of Gangwon-do area took more than 60 minutes. Except Wonju-si and Hoengseong-gun, other regions took more than 60 minutes to reach the tertiary hospital. Especially, Goseong-gun, Donghae-si, Samcheok-si, Sokcho-si, Yanggu-gun, Cheorwon-gun, and Taebaek-si took more than 100 minutes to the tertiary hospital. Conclusion: This study provided that the accessibility toward the tertiary hospital was limited and it may cause problems in high-risk delivery patients such as over 35 years. Health policy makers will need to handle the obstetric accessibility issues in Gangwon-do.

• Journal of the military operations research society of Korea
• /
• v.29 no.1
• /
• pp.112-119
• /
• 2003

The procedure and implementation of an simulation based production planning and scheduling system. Production planning and scheduling is important problem in manufacturing field. It is so important for delivery quality as well as productivity, too. In this paper, heuristic production planning and scheduling module for improving delivery quality and productivity will be discussed. Beginning with total demand and initial work in process, the algorithms for production scheduling and planning can efficiently generate a feasible production resources and capacity schedule results in high resource utilization, minimum number of the late orders and reduced labor variability. The algorithm is executed to achieve the best on time delivery performance. The developed heuristic algorithms in the module will be expected to provide the better delivery performance and productivity.