Dissertations / Theses on the topic 'Supply-push'

This thesis presents the analysis of dynamic behaviour arising from different production planning systems in manufacturing supply chains. Models of push, pull and hybrid production planning systems are developed using the system dynamics methodology, so allowing valid comparisons across the models. Although these production planning methods are well discussed in the literature in the light of their performance in different manufacturing systems, this research has a different approach. The models allow experimentation using a variety of hypothetical demand patterns as input, so as to reflect the current increasing uncertainty in customer demand. Results from the simulation runs are analysed on a comparative basis. Aspects such as the stock levels, back-order levels and cumulative costs are considered as performance metrics. In supply chains today, demand amplification (commonly called the bullwhip effect) remains one of the most difficult issues to resolve. The volatility of this wave can be observed from downstream customers placing orders, through retailers, distributors and finally the end member of the supply chain: manufacturers. This is the point where the research can offer some help. Findings from the analysis will provide insight as to how this wave transmits through manufacturers' operations under distinct production planning methods, together with the costs incurred by such instability. In addition, dynamic optimization of parameter values in the models (to minimise cumulative costs) is shown to be a useful methodological tool for managers in making decisions concerning stock and backlog policies.

Thesis(Ph.D.)--Case Western Reserve University, 2009
Title from PDF (viewed on 2009-11-23) Department of Management Includes abstract Includes bibliographical references and appendices Available online via the OhioLINK ETD Center

Laboratory push – pull switching power supply with symetrical output 2x0-30 V/5 A, primarily through adjustable controls (buttons, rotary encoder position) and then displayed on the alphanumeric LCD display. Management and communication device between the user and the power supply of the microcontroller ATmega32 - 16PU.

The thesis is focused on design the switching power supply according to Push-pull topology rules. The work describes basic theoretic principles of Push-pull topology with design of circuit and circuit elements.

In vehicle industry, it has been trends towards focusing on pull-basedsystems and elimination of waste (Lean), which decrease the tied-up capitallevel in the focal factory. Research by Holweg & Miemczyk (2002)showed that the relevant supply chain has low inventory level in the focalfactory, but at upstream and especially downstream; the tied-up capitallevel is dramatically higher in comparison to the focal factory.By conducting research and extensive literature reviews, this volatilityof tied-up capital level has been studied and analysed with regard topush and pull systems. As the three main causes of this unevenness; bullwhipeffect, CODP position in supply chain and intensity level of supplierrelationship have been identified and explained.As a practical solution for decreasing the tied-up capital level of finishedvehicles, implementation of centralised warehouse structure hasbeen suggested and discussed.Moreover, as an application of game theory in logistics, iterated prisoners’dilemma has been discussed as the base for a progressive relationshipwith suppliers (upgrading to win-win game) which is requisite for the successof pull-based supply chains.
Program: BSc in Industrial Engineering - International Business Engineering

Syfte – Syftet med denna studie är att undersöka vilka problem den offentliga organisationen har vad gäller informationsflödet inom organisationen samt föreslå en lösning på detta. För att uppnå syftet kommer följande frågeställningar att besvaras: Vilka problem har en offentlig organisation med informationsflödet? Hur kan en kravspecifikation bidra till en effektivisering av informationsflödet inom en offentlig organisation? Metod – För att uppnå studiens syfte och besvara frågeställningarna har en kvalitativ studie utförts på en offentlig organisation. Först utförs semistrukturerade intervjuer, efter det har det teoretiska ramverket skapats ur litteraturstudier för att ge en kunskapsgrund inom området. Ur detta framkommer riktlinjer för skapandet av en kravspecifikation, som ligger till grund för ett mer effektivt informationsflöde inom en offentlig organisation. Den empiri som insamlats på beskrivet sätt har sedan analyserats och jämförts med den insamlade teorin. Detta för att jämföra verkliga det arbetslivet med teorin. Även litteraturstudier har genomförts eftersom det är viktigt att få en stabil bakgrund gällande metoder, teorier och verktyg. Med sin grund i kravspecifikationen skapandes ett lösningsförslag efter att ett val har gjort vilken typ av lösning som är lämplig för ändamålet. Detta gjordes i samrådande med den berörda organisationen. Kravspecifikationen har analyserats mot empirin och teorierna samt skett i samrådande med den berörda organisationen. En demonstration av den slutliga lösningen och uppföljningsintervju utfördes även för att få feedback lösningsförslaget effektiviserade den berörda organisationen informationsflöde. Resultat – Studiens resultat bygger på den insamlade empirin och den utförda litteraturstudien. Resultatet visar att utvecklandet av en artefakt i form riktlinjer för en kravspecifikation som ligger till grund för en vidareutveckling för att effektivisera informationsflödet, har resulterat i en förbättring av informationsflödet inom en offentlig organisation. Kraven som framkom genom semistrukturerade intervjuer har använts vid skapandet av kravspecifikationen. Detta för att få ett bra resultat som löser den berörda organisationen krav och behov, vad det gäller att effektivisera informationsflödet inom en offentlig organisation. Implikationer – Ambitionen i denna studie är att skapa riktlinjer för en kravspecifikation som ligger till grund för en effektivisering av informationsflödet inom en offentlig organisation. Genom studiens resultat fås riktlinjer fram som borde användas av andra utvecklare eller studenter vid liknade projekt. Blomkvist och Hallin (2015) menar att vissa exjobb ger ett metodologiskt bidrag till forskningen detta genom att på ett nytt sätt lösa en organisations praktiska problem. Detta är denna studies kunskapsbidrag. Kunskapsbidraget vad det gäller forskningen inom ämnet informatik, bidrar den till en förbättring av förmedling av information. Detta genom att ta fram och använda riktlinjer för en kravspecifikation som ligger till grund detta. Studien ges stöd genom att ta fram ett riktlinjer för en kravspecifikation i form av en artefakt som ligger till grund vid utvecklingsarbetet. Ytterligare studier kan ses som önskvärt då denna studie endast har inriktat sig på en organisation och för att forskningen ska bli optimal och behöver ytterligare studier inom området utföras. Begränsningar – En studie utfördes på en offentlig organisation och därför blir studien relevant för denna organisation samt för liknade organisationer. Studiens ämnesområden är av varierande djup, eftersom det inte tidsmässigt varit möjligt att gå lika djupt inom alla ämnen.
Purpose – The purpose of this study is to investigate what kind of problems a public organization has with their information flow and suggest a solution to the identified problems.To achieve the purpose, will the report answer the following questions: What problems do a public organization have with the information flow? How can a specification contribute to efficiency the flow of information within a public organization? Method – In order to achieve the objectives of the study and answer the research questions, a qualitative study is conducted in a public organization. First, semi-structured interviews have been conducted, and then a literature search is performed to provide a knowledge base in this field. From this emerges a specification that forms the basis for a more efficient flow of information within a public organization. The empirical data, which is collected in the manner described, is then analysed and compared with the collected theory. This is to compare the real working life with the theory. Even literature studies have been carried out because it is important to have a stable background current methods, theories and tools. With its basis in the specification, the proposed solutions was developed after an election has made the kind of solution that is fit for purpose. This was done in consultation with the organization concerned. The requirement specification has been analysed by the empirical data and theories, and occurred in consulting with the organization concerned. A demonstration of the final solution and follow-up interviews were also conducted, to get feedback about the solution improvement of the information flow within the public organization. Findings – The study results are based on the collected empirical data and the conducted literature review. The result shows that development of an artefact in the form of guidelines for a set of requirements that form the basis, for further development solution improvement of the information flow has resulted in an improvement of the information flow within a public organization. The requirements that have been identified; with semi-structured interview have been used to create the specification demands. This is done to get a good result that solves the organizations requirements and needs, in terms of information flow in a public organization. Implications – Blomkvist and Hallin (2015) argues that some thesis provides a methodological contribution to research this, a new way to solve an organization's practical problems. This is this study knowledge contribution. Knowledge contribution in terms of research in informatics, it contributes to an improvement in the distribution of information. This is through the development and use guidelines for a set of requirements that underpin it. The study provides support by producing a guidance on a specification in the form of an artefact that is the basis for development. Further studies may be seen as desirable as this study has only focused on the organization and for research to be optimal and needs further studies in the field carried out. Limitations – The study was conducted in a public organization and therefore the results of the study are specifically relevant for this kind of organizations.

In this thesis is presented detail design of power part of DC/DC converter and output inverter. This device will serve for creating an artificial network in a family house where it will be used for supplying selected household appliances which are designed for use in AC network. The converter will be supplied with DC voltage. This tension will be obtained from a system of photovoltaic panels. The output voltage will have alternate character and it will be close to the network voltage 230 V/50 Hz. In the introductory part of thesis are discussed possible topologies of converters and output inverters. Subsequently are designed individual parts of supply inverter. In the final part there are shown waveforms of important values and is given a thesis evaluation.

碩士
義守大學
工業工程與管理學系碩士班
97
According to the increasing challenge of economic environment worldwide, supply chain management becomes more and more important for business corporations. In contrast to traditional management only focusing on improving the internal performance of corporation, supply chain management tends to integrate the related core business processes within and across different corporations. By adopting supply chain management into logistics system, the integration is concentrated on collaborating from original suppliers, distributors, retailers through end customers.To meet the future competition demand under multiple pressures such as insufficient budget and manpower reduction, the most important issues for logistics at present are to precisely deal with component needs and to control stock as well as to reduce the cost of investment, and to avoid from the accumulation of fund and avoid from the waste of storage space. Therefore, the revolution work for logistics should focus on the planning, reformation, and transformation of the operation procedure and on the set-up of the information system framework.There will be problems if every member of every level in the push mode of the current supply chain system only cares about one’s own stock satisfaction. Given that, the number of stock will be growing in order to meet various demands. As a result, too much stock will lessen the competition advantage as consequences. Excepting the concern of the stock problem, the lack of communication among all the members can also be harmful to both the whole system and the members. In the real network of the supply chain, it is not only one hero to take all the credit. In other words, push mode may be sufficient under some circumstances while pull mode can perform a better job under other circumstances.This research adopts the ideas of risk pooling, process modelling to build up a set of conceptual module of supply chain in order to prove the fact that under different circumstances, by changing the portion of the use of push and pull modes, the result can be surprising. In conclusion, we are able to better facilitate the supply chain system by combining or adjusting various modes and we are able to make the system more practical.

碩士
國立臺北科技大學
生產系統工程與管理研究所
91
A supply chain includes the transition and transportation of material from raw form through several stages of manufacturing, assembly and distribution to a finished product delivered to the end customer. In numerous publications on manufacturing and logistics the widespread terms "Push" and "Pull" are commonly used to characterize particular concepts of system configuration and coordination. However, the mechanics of material and information flow as commend by named Push- or Pull-mode, and the way of handling of the future through demand described as anticipating or reacting should be distinguished as proposed by Klaas. The approach system dynamics is employed to model and analyze the pull, push as well as their combinational mode in anticipating and reacting demand environment separately. The result shows that more detailed modeling of this research is beneficial to support the shaping of adequate supply chains to improve the efficiency in supply chain management.

碩士
朝陽科技大學
工業工程與管理系碩士班
96
To the industry of TFT-LCD, the main factors of the cost include the transportation of raw materials and products, and manufacturing. On these stages, time plays a crucial role; therefore, the main object of this research debates on supply chain of TFT-LCD industry and focuses on the time aspect. This research tried to construct a push/pull boundary and push/pull model by calculating the time of push model by push tactics including lead time, manufacture time, set up time, and transportation time; as well as calculating the time of pull model by pull tactics including lead time, assemble and manufacture time, order tardiness time, order work in process time, transportation time, and finally find out the shortest total time. The result of this study shows that the shortest time of push model is when the raw materials were transported from Taipei and finally assembled and manufactured in the Southeast Asian factory. The shortest time of pull model is when the products were assembled and manufactured in Southeast Asia and finally transported to European agent. In those situations, both push and pull time are the shortest.

碩士
南台科技大學
企業管理系
95
ABSTRACT With the liberalization of world trade, globalization, and emergence of new markets, many organizations have customers and competitors throughout the world, either directly or indirectly. Business communities are aware that international competitiveness is the key to the success of a business. Competitiveness is the ability to produce, distribute and provide products and services for the open market in competition with others. Effective procurement can reduce costs and add value to an organization by enhancing overall competitiveness. Procurement activities can be leveraged into a holistic approach to the supply chain management. More and more organizations must increasingly depend on effective supply chains, or networks, to successfully compete in the global markets and networked economy. By including the environmental factor surrounding the organization and the increase of the divers and uncertain demand on the wide market, a strategic fit of the supply chain should be designed and selected to apply in the real practice of the organization. As for push-pull integrated strategy which is one of the supply chain strategies, it is also selected by some firms to practice in their businesses in order to achieve the best results instead of choosing other strategies. In this research, as well as the push-pull integrated supply chain strategy is picked out to do research but in the terms of information system perspective with high customer satisfaction while information flow is the lifeblood of the company (Bill, 2001). Information flow can make the company to obtain the most out of its people and to learn from its customers. For example, information flow about what the customers think about the products of the company, what the problems the customers want the company to fix, what new features the customers want the company to add, what problems the partners have in coordinating with the company, where and why the competitors are winning business from the company, and what new markets are appearing that the company should enter. Therefore, all of those information flows above will be gained by the company along through the information extent and intensity in the supply chain of the company. In addition, this research, based on the information flow, has the objectives to identify the impact of the push-pull integrated strategy, to determine the structure of information flow of the company, and to find out whether only push-pull integrated strategy in the supply chain is enough or not in the real business practice of a company. The method of doing this research borrowed the method of “degree of supply chain coupling” of previous researchers by adding one more factor which is the competitor in the previous formulas. The study used 2 companies, Intel and Shawl and Local Handicraft which implement the push-pull integrated strategy. Firstly, the research found that the main impact of push-pull integrated strategy in the information flow from customers to suppliers, which is the vertical dimension, is the demand information flow. The second finding of the research is that a company does not use only one strategy in the competitive environmental business. There is more than one strategy in a company. The company can use other strategies along with push-pull integrated strategy in the chain, especially partnership strategy with competitors and/or supplier-managed inventories. However, the result from research discovered that there has no demand information that is flowed between the firm and its competitors. Keywords: Supply chain management, push-pull integrated strategy, and information sharing

碩士
開南大學
物流與航運管理學系
101
The apparel fashion industry in six to eight months before introducing new styles each season is necessary to start designing, proofing, and convening meetings to forecast next season’s orders (First Batch). When the new collections on the market, they must respond quickly to consumer demand. However, because the market demand is difficult to predict, and the apparel fashion industry’s product life cycle is short, making two major problems: stockouts and high end-of-season stocks. For this reason, this study designs a simulation platform to simulate the current status, analyze the simulation data by Multivariate Analysis of Variance ( MANOVA) using SPSS, and propose a new way to manage a fashion industry supply chain, which are: cut the batch size for the blind zone of every season, quick response time improvement, change from push to pull. The simulation results of this study show that the propose scheme is capable to realize in order to reduce surplus and shortage.

碩士
國立交通大學
工業工程與管理系所
97
In the supply chain of suppliers, manufacturers, distributors or retailers having low inventory with higher availability is a primary objective. In order to achieve the primary objective, they usually choose two strategies: (1).In accordance with forecasting the future customer demand for production or replenishment (push system); (2).In accordance with the actual customer demand for production or replenishment (pull system). The majority of companies are using the former. Although the pull system’s feasibility obtains the verified in many research or the enterprise, but the manager still suspected the high variability of demand can be handled with pull system. In this study, a simulation environment with the practice of supply chain systems, inviting thirty teams (90 participants) from local companies participated in the experiment. The experimental results verify that the principal factor for poor performance caused by method of managing supply chain (push system or pull system). Given a proper target inventory level and replenish the inventory based on actual demand can achieve the primary objective of lower inventory with higher availability.

碩士
國立交通大學
工業工程與管理系所
102
Natural or man-made disasters can occur at any moment results in supply chain disruption. Although companies known the potential risks their business are exposed, many of them are not prepared to respond to demand during a disruption in their supply chain, neither intend to invest in create or redesign their supply chain to be resilient against those events. The purpose of this research is by using the simulation software developed by Avraham Y. Goldratt Institute will compare the performance of a pull and push supply chain system design, also confirm the assumption that with a pull system a company can better handle a short time disruption of the supply chain.

碩士
國立交通大學
管理學院高階主管管理碩士學程
106
The Global Server OBM(DELL、HP、IBM、LENOVO) designed pull Supply Chain management.OBM selected the final assembly factory which near end customer.OBM requested ODM/OEM to provide semi-finish goods inventory that nears the final assembly factory or inside the factory. The cassis volume for server product is huge.OBM designed the main board or cards inside the chassis and arranged ocean shipment. ODM/OEM must offer the minimum inventory in VMI and MIT inventory on ocean shipment.It is more than 2 months inventory for ODM/OEM.If OBM forecast accuracy performance is not good then ODM/OEM has to undertake VMI inventory burden on cash flow. This research utilizes the process-oriented Supply Chain Operations Reference (SCOR) model as our analysis tool for investigating the distribution of the supply chain.Through the penetrate interview, we understand the problems after W-company implement the postponement methodology on production and shipment.The research analysis what is the optimal push and pull supply chain parallel management in order to lower the shortage risk on OBM and inventory risk on ODM/OEM. It also provides the suggestion on inventory KPI design on defferent department and product design for pull supply chain management.

碩士
大葉大學
事業經營研究所碩士在職專班
93
To meet the future competition demand under multiple pressures such as insufficient budget and manpower reduction, the most important issues for logistics at present are to precisely deal with component needs and to control stock as well as to reduce the cost of investment, and to avoid from the accumulation of fund and avoid from the waste of storage space. Therefore, the revolution work for logistics should focus on the planning, reformation, and transformation of the operation procedure and on the set-up of the information system framework. There will be problems if every member of every level in the push mode of the current supply chain system only cares about one’s own stock satisfaction. Given that, the number of stock will be growing in order to meet various demands. As a result, too much stock will lessen the competition advantage as consequences. Excepting the concern of the stock problem, the lack of communication among all the members can also be harmful to both the whole system and the members. In the real network of the supply chain, it is not only one hero to take all the credit. In other words, push mode may be sufficient under some circumstances while pull mode can perform a better job under other circumstances. This research adopts the ideas of risk pooling, business process modelling to build up a set of conceptual module of supply chain in order to prove the fact that under different circumstances, by changing the portion of the use of push and pull modes, the result can be surprising. In conclusion, we are able to better facilitate the supply chain system by combining or adjusting various modes and we are able to make the system more practical.

In a globalization environment and where uncertainty is more present, it is necessary to adapt supply chains, in order to allow companies to be able to ensure their competitive advantage. In this way, Portuguese COMPANY X feels the need to understand the advantages associated with a change in its production strategy. Considering the lean strategies that help in this adaptation and that can be applied throughout the supply chain, this study focuses specifically on the implementation of one of these strategies in the production area. Among all the existing businesses in the company, it was challenged that this analysis should focus on the coffee business, since it is a growing business. Therefore, this study focuses on the analysis of a possible implementation of a production pull strategy, in order to assess whether the impacts on production costs and on holding stock costs are advantageous compared to those existing in the current production strategy - push production strategy. At the same time, it is intended to compare the effects caused by different demand variation scenarios between the current production strategy and the strategy under analysis. To analyze if there would be advantages in implementing a pull strategy in the production area, a simulation tool was used - Anylogic. In this tool, was made a model which represent the production process and another one that represents the stock process.
Num ambiente de globalização e onde a incerteza está mais presente, torna-se necessário adaptar as cadeias de abastecimento, de forma a permitir que as empresas consigam assegurar a sua vantagem competitiva. Deste modo, a COMPANY X Portuguesa sente a necessidade de perceber quais as vantagens associadas a uma mudança na sua estratégia de produção. Levantadas as estratégias lean que ajudam nesta adaptação e que podem ser aplicadas ao longo de toda a cadeia, o presente estudo foca-se especificamente na implementação de uma destas estratégias na área de produção. De entre todos os negócios existentes na empresa, foi desafiado que esta análise incidisse no negócio de cafés, uma vez que é um negócio em crescimento. Posto isto, este estudo foca-se na análise de uma possível implementação de uma estratégia pull de produção, de modo a avaliar se os impactos sobre os custos de produção e sobre custos de posse de stock são vantajosos face aos existentes na estratégia de produção atual - estratégia de produção push. Ao mesmo tempo, pretende-se comparar os efeitos causados perante diversos cenários de variação da procura entre a estratégia de produção atual e a estratégia em análise. Para analisar se existiriam vantagens na implementação de uma estratégia pull na área de produção, foi utilizada uma ferramenta de simulação – Anylogic. Nesta ferramenta foi realizado um modelo que diz respeito à produção e outro modelo que diz respeito ao processo de stocks.