• Title/Summary/Keyword: Out of distribution

Search Result 8,341, Processing Time 0.04 seconds

LDV Measurement, Flow Visualization and Numerical Analysis of Flow Distribution in a Close-Coupled Catalytic Converter

  • Kim, Duk-Sang;Cho, Yong-Seok
    • Journal of Mechanical Science and Technology
    • /
    • v.18 no.11
    • /
    • pp.2032-2041
    • /
    • 2004
  • Results from an experimental study of flow distribution in a close-coupled catalytic converter(CCC) are presented. The experiments were carried out with a flow measurement system specially designed for this study under steady and transient flow conditions. A pitot tube was a tool for measuring flow distribution at the exit of the first monolith. The flow distribution of the CCC was also measured by LDV system and flow visualization. Results from numerical analysis are also presented. Experimental results showed that the flow uniformity index decreases as flow Reynolds number increases. In steady flow conditions, the flow through each exhaust pipe made some flow concentrations on a specific region of the CCC inlet. The transient test results showed that the flow through each exhaust pipe in the engine firing order, interacted with each other to ensure that the flow distribution was uniform. The results of numerical analysis were qualitatively accepted with experimental results. They supported and helped explain the flow in the entry region of CCC.

Optimal distribution of steel plate slit dampers for seismic retrofit of structures

  • Kim, Jinkoo;Kim, Minjung;Eldin, Mohamed Nour
    • Steel and Composite Structures
    • /
    • v.25 no.4
    • /
    • pp.473-484
    • /
    • 2017
  • In this study a seismic retrofit scheme for a building structure was presented using steel plate slit dampers. The energy dissipation capacity of the slit damper used in the retrofit was verified by cyclic loading test. Genetic algorithm was applied to find out the optimum locations of the slit dampers satisfying the target displacement. The seismic retrofit of the model structure using the slit dampers was compared with the retrofit with enlarging shear walls. A simple damper distribution method was proposed using the capacity spectrum method along with the damper distribution pattern proportional to the inter-story drifts. The validity of the simple story-wise damper distribution procedure was verified by comparing the results of genetic algorithm. It was observed that the capacity-spectrum method combined with the simple damper distribution pattern leaded to satisfactory story-wise distribution of dampers compatible with the optimum solution obtained from genetic algorithm.

A Study on the Operation of Distribution System for the Rationalization of Safety Stock under the Price Discount (가격할인하 안전재고 합리화를 위한 분배시스템 운영에 관한 연구)

  • Kim, Byeong-Chan;Kim, Hong-Ki
    • Journal of Korean Society of Industrial and Systems Engineering
    • /
    • v.32 no.4
    • /
    • pp.45-52
    • /
    • 2009
  • The objective of this was to improve a transportation cost relation between Central Distribution Centers(CDCs) and Regional Distribution Centers(RDCs), to control inventory cost concerning safety stock for each service level, by reviewing distribution steps connecting CDCs and RDCs under the price discount. It was also to examine and compare operating costs for the following two alternative suggestions for setting the service standard as a counter measure for a stock-out of the distribution network system management. First, provision by dispersing the safety stock to the CDCs and RDCs; and second, exclusive provision of the safety stock only to the RDCs. The cost comparison analysis was made for each category of purchase costs, regular transportation costs, express transportation costs, and inventory holding costs.

Investigating Factors Affecting Value Creation and Its Distribution on Company's Performance

  • Ahmad FIRMAN;Muhammad HIDAYAT
    • Journal of Distribution Science
    • /
    • v.21 no.9
    • /
    • pp.23-34
    • /
    • 2023
  • Purpose: This study aims to determine the effect of business processes, quality of human resources and organizational culture and its distribution in creating value to achieve competitive advantage. Research Design, Data, and Methodology: Data collection in this study was carried out by distributing questionnaires to 90 employees of Delivery service companies in Makassar City. Partial Least Square (PLS) analysis was used as data analysis. Result: this study indicates that business processes do not directly affect competitive advantage, but business processes will have an effect if they go through the value creation process as an intervening variable, while the quality of human resources and work environment have a direct effect on competitive advantage and have a direct effect on Value creation. The quality of human resources and organizational culture also have an indirect effect on competitive advantage through the value creation process. This research also indicates that value creation has an effect on competitive advantage. Conclusion: Competitive advantage will be realized if organizational processes run well, company management that able to carry out good organizational processes and able to create a conducive organizational culture, will be able to distribute company resources to create value that leads to achieving competitive advantage for companies in the future.

Reform Measures of Distribution Structure to Promote Domestic Milk Consumption (국산 시유의 소비 증진을 위한 유통 구조 개선 방향)

  • Chung, Woon-Hyun
    • Journal of Dairy Science and Biotechnology
    • /
    • v.17 no.1
    • /
    • pp.32-38
    • /
    • 1999
  • Korean dairy industry is placed on the very critical situation with the progress of free trade marketing system internationally. To keep and improve the dairy food market, better measures are imperative for dairy industry. Especially, the milk distribution system is premodern to some extent, in comparison with both the production and the processing part of dairy industry. Reform measures for the promotion of domestic milk consumption by lowering the distribution cost are as follows. First, out-sourcing of the logistics department can decrease the circulation cost of milk. Secondly, milk should be packed into large-size package(more than 1 liter) to save both package and distribution cost. Thirdly, milk should be distributed from plant to consumers through the hygienic distribution system including perfect cold chain system, Above reform measures can not come true through the efforts taken by one company but through co-worker, concerted research, and joint in-vestment among dairy companies that can reduce the distribution cost and provide consumers with the best service, eventually resulting in the increment of milk consumption.

  • PDF

Load Distribution Factors for Hollow Core Slabs with In-situ Reinforced Concrete Joints

  • Song, Jong-Young;Kim S, Elliott;Lee, Ho;Kwak, Hyo-Gyoung
    • International Journal of Concrete Structures and Materials
    • /
    • v.3 no.1
    • /
    • pp.63-69
    • /
    • 2009
  • This paper provides the engineer with a simple design method dealing with situations arise where in-situ reinforced concrete joints are cast between hollow core units. Using finite element method, hollow core slabs with wide in-situ RC joints under point load and line loads are analysed. In addition, some important behavioural characteristics of the floor slab subjected to line and point loads are investigated. In-situ reinforced concrete joint causes reduction of load distribution for remote units because distance to the remote units from the point of load is increased, while the portion of load distribution carried by loaded unit increases. Also, it was turned out load distribution factors for point load and line loads are almost same. Finally, we suggest a simple analytical method, which can determine load distribution factors using normalized deflections by regression analysis for design purposes.

Development of Market Distribution through Digital Marketing Transformation Trends to Maximize Sales Turnover for Traditional Beverage Products

  • Basrowi;Pertiwi UTAMI
    • Journal of Distribution Science
    • /
    • v.21 no.8
    • /
    • pp.57-68
    • /
    • 2023
  • Purpose: The research aims to investigate the development of market distribution through digital marketing transformation trends with the support of universities. This development strategy is to maximize sales turnover of limited liability companies' typical traditional beverage products. Research design, data, and methodology: The research design uses descriptive qualitative methods. Data were obtained by participatory observation, in-depth interviews, FGDs, and documentation. Results: The result shows that the partner's traditional product market distribution strategy has been carried out by adopting science and technology and expertise possessed by partner universities. Universities that are Partners have benefited from the implementation of the Independent Campus program. Conclusions: The conclusion from the findings is that business actors must collaborate with universities through the Kedaireka Matchmaking Fund Program. The collaboration will create the right strategy development for the business. The government needs to provide more access to finance in the future. The hope is that the traditional beverage industry and higher education can realize the ease of synergy contributing to national development and the vision of the Indonesian Ministry of Education and Culture's independent campus.

Noninformative priors for the scale parameter in the generalized Pareto distribution

  • Kang, Sang Gil
    • Journal of the Korean Data and Information Science Society
    • /
    • v.24 no.6
    • /
    • pp.1521-1529
    • /
    • 2013
  • In this paper, we develop noninformative priors for the generalized Pareto distribution when the scale parameter is of interest. We developed the rst order and the second order matching priors. We revealed that the second order matching prior does not exist. It turns out that the reference prior and Jeffrey's prior do not satisfy a first order matching criterion, and Jeffreys' prior, the reference prior and the matching prior are different. Some simulation study is performed and a real example is given.

Design of Distribution Facility for Cross Docking Systems (크로스도킹 시스템을 위한 물류센터의 설계에 관한 연구)

  • Yu, Woo-Yeon;Park, Yun-Sun;Shin, Jung-Hyun
    • Journal of the Korea Safety Management & Science
    • /
    • v.10 no.2
    • /
    • pp.187-193
    • /
    • 2008
  • Cross docking is a warehouse management concept in which items delivered to a distribution facility by inbound trucks are immediately sorted out and reorganized based on customer demands and are routed and loaded into outbound trucks for delivery to customers without actually being held in inventory in the distribution facility. In this research, the design of distribution facility for cross docking systems was studied. The objective of this research is to find the minimum number of receiving docks and shipping docks, respectively, in order to meet the daily demand of the distribution center. Two solution approaches are employed in modeling and solving the problem The first approach is mathematical modeling and the second approach is a simulation. The logic developed in the simulation model is expected to apply to the real world situation.

A Lightning Surge Analysis of Testing Line for Protection of Underground Distribution Systems (지중배전계통 보호를 위한 모의시험선로 서지특성 해석)

  • Kim Byoung-Sung;Lee Jang-Geun;Lee Jong-Beom;Han Byong-Sook
    • The Transactions of the Korean Institute of Electrical Engineers A
    • /
    • v.55 no.8
    • /
    • pp.313-321
    • /
    • 2006
  • This paper describes the overvoltage obtained by surge behavior analysis in testing underground distribution systems. Model systems consist of overhead distribution line and underground cable. Such model system considered various characteristics of actual distribution systems will be soon constructed at testing yard. Simulation is carried out under various states such as cable kinds, cable length, lightning wave and time, and branch circuits. Model is established by EMTP/ATPDraw. Line Constants are calculated by ATP_LCC. When the direct lightning surge strikes on conductor of overhead line, the overvoltage is calculated using EMTP/ATPDraw in many cases. Simulation results will be compared with real testing results at testing yard in the near future. The compared results will be used to establish protection methods in actual underground distribution systems.