• Title/Summary/Keyword: just in time production

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The Effects of Electronic Commerce on the Freight Transport Industry

  • Yang, Jung-Ho
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.40
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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.

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Development of Automation System for Press Line (대형 프레스용 자동화 시스템 개발)

  • 김순철;권용수;한상동;노태정;안병규
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1996.11a
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    • pp.806-809
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    • 1996
  • The present development relates to an apparatus for loading or unloading a workpiece, and more particularly, to an apparatus for loading or unloading a workpiece from a press die or supplier An apparatus for loading or unloading a workpiece has been installed in a press in order to load or unload a workpiece from a press die. There has been known such a loading or unloading apparatus as the apparatus can feed a workpiece in not only the horizontal direction but also in the vortical direction. Press working system in automotive factories are now switching over to a transfer press work ing system. The current problem to be sieved immediately is to automate the existing manual press lines for the manpower saving and speedy production. “Automation system for press line”has just been developed to meet the above trend. The loader and unloader are development under the design concept for high performance, easy control and operational safety to meet the more extensive.

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The State-of-the-Art Review on the Information Technologies for Manufacturing Toward Digital Shipbuilding (디지털 선박생산화를 위한 생산정보기술)

  • 이경호;장윤석
    • Journal of Ocean Engineering and Technology
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    • v.17 no.4
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    • pp.81-85
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    • 2003
  • The industry has undergone a significant change over the last decade: digital business has become a strategy to survive; the extended enterprise is being implemented; parts are made where conditions are most favourable; non-core activities are out-sourced; advanced manufacturing systems and information technologies are introduced to improve manufacturing performance. Suppliers and distributors become part of the supply chain and they all comprise an integrated international co-operative network to provide manufactured goods and support services for a world market just in time, at low prices and with quality surpassing customers' expectations. In this paper, we review various state-of-the-art information technologies for the shipbuilding industry. The successful introduction and implementation of those technologies will be the key enabler for e-transformation in the shipbuilding industry.

Determination of Tropical Forage Preferences Using Two Offering Methods in Rabbits

  • Safwat, A.M.;Sarmiento-Franco, L.;Santos-Ricalde, R.H.;Nieves, D.
    • Asian-Australasian Journal of Animal Sciences
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    • v.27 no.4
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    • pp.524-529
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    • 2014
  • Two methods of feed preference trials were compared to evaluate the acceptability of 5 fresh foliages: Leucaena leucocephala, Moringa oleifera, Portulaca oleracea, Guazuma ulmifolia, and Brosimum alicastrum that was included as control. The evaluation included chemical analyses and forage intake by rabbits. The first method was a cafeteria trial; 12 California growing rabbits aged 8 wk, allocated in individual cages, were offered the five forage plants at the same time inside the cage, while in the second trial 60 California growing rabbits aged 8 wk, allocated individually, were randomly distributed into 5 experimental groups (n = 12/group); for each group just one forage species was offered at a time. The testing period for each method lasted for 7 d, preceded by one week of adaptation. The results showed that B. alicastrum and L. lecocephala were the most preferred forages while on the contrary G. ulmifolia was the least preferred one by rabbits. The results also revealed that the CV% value for the 2nd method (16.32%), which the tested forages were presented separately to rabbits, was lower and methodologically more acceptable than such value for the $1^{st}$ method (34.28%), which all forages were presented together at the same time. It can be concluded that a range of tropical forages were consumed in acceptable quantities by rabbits, suggesting that diets based on such forages with a concentrate supplement could be used successfully for rabbit production. However, growth performance studies are still needed before recommendations could be made on appropriate ration formulations for commercial use.

EFFECTS OF DIFFERENT COOLING TECHNIQUES ON DRAUGHT CAPACITY OF BUFFALO

  • Bunyavejchewin, P.;Kaewsomprasong, K.;Chotemethepirom, S.;Tanta-ngai, B.;Tajima, A.;Chikamune, T.
    • Asian-Australasian Journal of Animal Sciences
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    • v.4 no.2
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    • pp.131-136
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    • 1991
  • Four male swamp buffaloes weighing $460.5{\pm}44.6kg$ were used to study the effects of different cooling techniques on draught capacity. Each animal carted an 882 kg load on the same asphalt road for one hour during four different time periods: 9:00-10:00 A.M., 10:30-11:30 A.M., 2:00-3:00 P.M. and 3:30-4:30 P.M. Simultaneously, all animals were subjected to five different treatments on five days of similar environmental conditions. In Treatment 1, animals were put stationary in a field and did no work; in Treatment 2, animals were worked without any cooling method; in Treatment 3, fifteen-minute wallow was allowed to animals prior to working; in Treatment 4, animals were covered with wetted jute bags while working, and in Treatment 5, two buckets of water were poured over the buffaloes' trunks just prior to working. The experiment was conducted from April to July 1989, when the weather was very hot. It was found that cooling methods and working times did not affect the draught efficiency of buffaloes during the one hour, but did affect physiological traits. The work load had a larger partial effect on physiological responses of buffalo other than respiration rate than did climatic variables except on the respiration rate of the buffaloes. One cooling technique that seemed to slow the increase of body temperature while working was covering the buffalo's back with wetted jute bags. Animals working at different times had significant differences in the increase of physiological traits except pulse rate.

The problems and present production state of functional foods utilizing the medicinal herbs -rice, peanut, plums- (약용식물을 이용한 기능성 식품의 생산현황 및 과제 - 쌀, 땅콩, 매실 -)

  • Baek Hum Young
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2002.05a
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    • pp.73-76
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    • 2002
  • The foods such as rice, peanuts and plums etc. are recognized as a direct way to keep health and to cure diseases based on the theory of that the medicine and foods are from the same source, not just to maintain life, therefore due to this reason, the dietary treatment is currently gathering strength with patients who are suffering from chronic diseases. Especially, 1 trust that the practical application of functional foods and taking medicine must be highly effective in curing diseases or relieving symptoms. In order to produce the superior functional foods by medicinal herbs, we should to make a greater effort to research the harvest time of material, drying and keeping method, and additionally try to develop the standard of food material and various drugs manufacturing continually.

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A Study on Factory Review Using Virtual Reality Model based on P3R Information (P3R 정보 기반의 가상현실 모델을 이용한 공장 품평에 관한 연구)

  • Lee, Ju-Yeon;Choi, Sang-Su;Park, Yang-Ho;Noh, Sang-Do
    • Korean Journal of Computational Design and Engineering
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    • v.15 no.5
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    • pp.343-353
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    • 2010
  • Time to market and cost-efficient production are some of the challenge that manufacturing industries face. Modern methods of engineering can't help such organizations attain competitive advantage. To help these situations, MEMPHIS (Middleware for Exchanging Machinery and Product Data in Highly Immersive Systems) was introduced as an approach that enables VE (Virtual Engineering) and links engineering applications with VR (Virtual Reality) solutions. Thus an environment is provided to implement virtual design reviews and enable the application of virtual prototyping methods. However MEMPHIS could just handle Product data for virtual design review and simulation. In this paper, we newly define and develop the extended MEMPHIS that enables virtual manufacturing with Process, Resource and Plant data as well as Product data.

Evolutionary Theory Of Management In Education

  • Moskalenko-Vysotska, Olena;Melnyk, Emiliia;Tovstenko-Zabelin, Serhii;Lehka, Svitlana;Didenko, Maryna;Hrubych, Kostiantyn
    • International Journal of Computer Science & Network Security
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    • v.22 no.1
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    • pp.312-318
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    • 2022
  • The article notes that one of the reasons for the crisis in education was the sharp discrepancy between the emerging new forms and content and the model of macro-management that has developed over the decades. The level of management of the educational system did not emerge as a specific activity characterized by its own mechanisms and processes, just as qualified carriers of this activity - professionals - managers - did not appear. At the same time, there is practically no theoretical and methodological model of the macrolevel of education management, that is, management of the educational system as an integral structure.

A STUDY ON THE PROJECTION METHOD OF THE 「HON-CHON-JEON-DO」 (「혼천전도」의 투영법 고찰)

  • KIM, K.T.;CHO, YONGHAN
    • Publications of The Korean Astronomical Society
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    • v.34 no.1
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    • pp.1-16
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    • 2019
  • "Hon-Chon-Jeon-Do" is a woodcut star map with the size of $79.4cm{\times}127.5cm$, and was widely disseminated as it was made into a set with Kim, Jung Ho's "Yeoji-Jeon-Do". This study confirmed that Yixiang kaocheng xubian ("의상고성속편") star catalogue was used as a source to produce the star map, and the stereographic projection was applied with the projection center being the mid-point (Q) between the celestial and ecliptic north poles. The 'mid-circle' around the Q is arisen between the equator and the ecliptic, and on this circle, the hour angle and the ecliptic longitude of a star can be marked using the same scale. This means that the hour of the day and the season of the year can be read on the same dial of the mid-circle, and the application of this character in the practical use was the key point of the star map production. By observing either transits or positions of the 28 xiu (宿), it is easy to find the corresponding season and time by simply reading the dial on the mid-circle. This is just the function of a portable almanac and thus by disseminating it widely, the convenience of the people would have been promoted. For this reason, it can be stated that "Hon-Chon-Jeon-Do" was a practical astronomical tool which was produced by the western astronomical projection method and was used to find time and season. Choi, Han Ki and Kim, Jung Ho are strong candidates for the makers of this star map. The time of production is estimated to be 1848 ~ 1857, and "Hon-Chon-Jeon-Do" could be regarded as a good contributor to popularization of astronomy in the late Joseon Dynasty.

A Qualitative Study of Korean Clothing Companies' Perception of Production Environments and Labor Standards in Foreign Contract Manufacturers (해외 생산업체에 대한 국내 의류업체의 생산환경 및 근로기준 인식에 대한 질적 연구)

  • Hong, Kyung-Hee;Yang, Ji-Nok;Lee, Ji-Soo;Kim, Young-Mi;Lee, Yoon-Jung
    • Fashion & Textile Research Journal
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    • v.12 no.3
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    • pp.291-301
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    • 2010
  • Today Korean clothing companies are experiencing difficulties in the global market due to unfavorable business conditions including poor production environments, labor shortage, rising costs, the further opening of the domestic distribution market, and increased competition among them. As a result, this has caused many of Korean clothing companies to transfer their production bases abroad in search of relatively inexpensive labor force, instead of using domestic plants. This study attempted to examine how Korean clothing companies perceive production environments and labor standards with regard to their offshore outsourcing. In such an attempt, in-depth interviews were conducted with 24 brand-name clothing firms. Those interviewed firms were the brands for the domestic or foreign market that were found to produce more than 200,000 pieces of clothing per year, and also the group of interviewees included some promotion service providers. The key findings from this study are as follows: First, a large number of the interviewed clothing companies were found to manage their foreign contract manufacturers by "visiting their factories regularly on a seasonal basis" or "stationing their personnel in factory for management purposes." Second, in relation to quality control in their foreign manufacturers, the most frequent response was to "have personnel stationed in those manufacturers." A smaller number of the clothing companies answered that they had "engaged their production management teams in quality control from time to time," or "used their inspectors to inspect products." Third, when asked about labor standards in foreign contract manufacturers, the largest number of the clothing companies responded, "we apply our own standards." The results of this study suggest that most of domestic clothing companies still use offshore sourcing just as a means of reducing their initial labor costs. However, in the continuously changing environment of the global clothing industry, clothing businesses are required to escape from the early phases of their manufacturing environments and set up more globalized standards.