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Boström, Stellan. "Integrating Push Technology with the Ericsson Mobile Positioning Center." Thesis, Blekinge Tekniska Högskola, Institutionen för programvaruteknik och datavetenskap, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5878.
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Push is an Internet technology, which allow people to subscribe to a content- or service provider that automatically update the subscriber?s computer or Personal Digital Assistant (PDA) with the latest information without having the subscriber to first request for new information. The Ericsson Mobile Positioning Center (MPC) is a gateway that provides geographical positions of mobile stations to various applications. This Master Thesis gives the reader an overview of these technologies and presents an alternative way in integrating a third part Push-solution with the MPC. The integration proposal is also evaluated against the current Push functionality that Ericsson has developed and integrated into the MPC.Push är en Internetteknik som ger Internetanslutna användare möjlighet att abbonnera på automatisk nyhetsuppdatering från olika informationskällor direkt till deras dator utan att användaren behöver efterfråga densamma upprepade gånger. Ericsson Mobile Positioning Center (MPC) är en gateway vilken förser olika nyhetstjänster den geografiska positionen av en mobiltelefon. Denna Magisteruppsats ger en översikt inom båda dessa områden samt presenterar ett förslag på hur dessa tekniker kan integreras. Integrationsförslaget jämförs även med den lösning Ericsson själva har valt att implementera.
Stellan Boström Adress: Vendesgatan 1B Tel: 044-218793 / 0733-228105 E-mail: stellan_bostrom@hotmail.com
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Nilstadius, Gustaf, and Robin Duda. "Evaluation of push/pull based loadbalancing in a distributed loggingenvironment." Thesis, KTH, Data- och elektroteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-188539.
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This report compares the characteristics of push/pull load balancing techniques usedin the context of a logging system. The logging system is expected to handle a largevolume of events. The load balancing techniques are evaluated with focus onthroughput during high load. The testing scenarios includes the use of a traditionalload balancer (push-based) and the use of messaging queues (pull-based and indirectlycontext aware) in its place. The ultimate goal of the report is to determine the feasibilityof using a messaging queue rather than a traditional load balancer in a distributedlogging system. Tests were conducted measuring the throughput of multiple setupswith different load balancers. The conclusion of this report is that both messagingqueues and load balancing are equally feasible in a logging context.Rapporten jämför egenskaper hos lastbalanseringstekniker för användning i ettdistribuerat logghanteringssystem. Systemet förväntas hantera stora volymermeddelanden vid hög belastning. Testscenarion som utförs sker med traditionelllastbalansering där event trycks ut, samt med meddelandeköer som är hämtbaserade.Målet med rapporten är att avgöra om kontextbaserad lastbalansering kan ökastabiliteten i ett system avsett för hantering av loggdata. Testerna som utfördesuppmätte mängden data som gick igenom systemet vid en given tidpunkt, testernakördes med flera typer av lastbalanserare. Slutsatsen som dras är att bådemeddelandeköer och lastbalansering är passande för användning i ett loggsystem.
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Akhmedov, Iliiazbek. "Parallelization of Push-based System for Molecular Simulation Data Analysis with GPU." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6448.
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Modern simulation systems generate big amount of data, which consequently has to be analyzed in a timely fashion. Traditional database management systems follow principle of pulling the needed data, processing it, and then returning the results. This approach is then optimized by means of caching, storing in different structures, or doing some sacrifices on precision of the results to make it faster. When it comes to the point of doing various queries that require analysis of the whole data, this design has the following disadvantages: considerable overhead on traditional disk random I/O framework while reading from the simulation output files and low throughput of the data that consequently results in long latency, and, if there was any indexing to optimize selections, overhead of storing those becomes too big, too. Beside it, indexing will also cause delay during write operations and since most of the queries work with the entire data sets, indexing loses its point. There is a new approach to this problem – Push-based System for Molecular Simulation Data Analysis for processing network of queries proposed in the previous paper and its primary steps are: i) it uses traditional scan-based I/O framework to load the data from files to the main memory and then ii) the data is pushed through a network of queries which consequently filters the data and collect all the needed information which increases efficiency and data throughput. It has a considerable advantage in analysis of molecular simulation data, because it normally involves all the data sets to be processed by the queries. In this paper, we propose improved version of Push-based System for Molecular Simulation Data Analysis. Its major difference with the previous design is usage of GPU for the actual processing part of the data flow. Using the same scan-based I/O framework the data is pushed through the network of queries which are processed by GPU, and due to the nature of science simulation data, this gives a big advantage for processing it faster and easier (it will be explained more in later sections). In the old approach there were some custom data structures such as quad-tree for calculation of histograms to make the processing faster and those involved loss of data and some expectations from the data nature, too. In the new approach due to high performance of GPU processing and its nature, custom data structures were not even needed much, though it didn’t bear any loss in precision and performance.
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Ševčíková, Jitka. "Optimalizace zásob prostřednictvím KANBANu." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2007. http://www.nusl.cz/ntk/nusl-221443.
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This thesis deals with implementation of another supplier to the Kanban system in the company Lexmark International s.r.o. The first part of the thesis is concerned with a theoretical finding from literature concerning inventory, types of supplies, level of inventory, calculation of supplies and, in addition, the Kanban and JIT system. The operative part is dedicated to analyses of the current status of the company using of the Porter´s, SWOT and SLEPTE analyses and, more over, the process of supplies by the method of PUSH and PULL – Kanban system in the company. The following chapter compiles the project on optimalization and decreasing of inventory by implementation of the Kanban system by Asian suppliers whose inventory coveres a substantial part of the company´s value. The objective of this thesis is to find whether the implementation of Kanban reduces level of inventory and whether their costs can be reduced in comparison with the last years and last but not least whether the implementation can be useful.
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Wiklund, Ida. "A Recommendation system for News Push Notifications- Personalizing with a User-based and Content-based Recommendation system." Thesis, Umeå universitet, Institutionen för datavetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-172275.
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The news landscape has changed during recent years because of the digitization. News can nowadays be found in both newspapers and on different sites online. The availability of the digital newspapers leads to competition among the news companies. To make the users stay on one specific platform for news, relevance is required in the content and oneway of creating relevance is through personalization, to tailor the content to each user. The focus of this thesis is therefore personalizing newspush notifications for a digital newspaper and making them more relevant for users. The project was made in cooperation with VK Media, and their digital newspaper. The task in this thesis is to implement personalization of push notifications by building a recommendation system and to test the implemented system with data from VK. In order to perform the task, a dataset representing reading habits of VK’s users was extracted from their data warehouse. Then a user-based and content-based recommendation system was implemented in Python.The idea with the system is to recommend new articles that are sufficiently similar to one or more of the already read articles. Articles that may be liked by one of the most similar users should also be recommended. Finally, the system’s performance was evaluated with the data representing reading habits for VK’s users. The results show that the implemented system has better performance than the current solution without any personalization, when recommending a few articles to each user. The results from the evaluation also show that the more articles the users have read, the better predictions are possible to make. Thus, this thesis offers a first step towards meeting the expectations of more relevant content among VK’s users.
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Fortuin, Alwyn. "Push out strengths of a double tapered post system with 3 different cements." Thesis, University of the Western Cape, 2012. http://hdl.handle.net/11394/4567.
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Magister Chirurgiae Dentium - MChDThe aim of the study was to determine which of the three resin cements would produce the highest debond stress values with a double-tapered fibre post system. In the past, conventional parallel- sided prefabricated or cast metal posts have been used, which has considerable mechanical strength but lacks aesthetic capabilities. Post preparation techniques usually compromise the fracture strength of the treated anterior tooth. Double- tapered post systems ensure that anterior mutilated teeth can be restored and retained without compromising aesthetics or excessively weakening the remaining dental tissues. There are in-vitro results that support the strength of the double- tapered design, as well as the aesthetics of the material but there is little evidence regarding the retentive capabilities of the posts and which cement will ensure the best results (Grandini et al., 2008; Nakamura et al., 2005). Literature suggests that the two main causes for failure of a post system are root fracture and debonding of the post in the root canal (Toman et al., 2009; Radovic et al., 2008). The type of cement and cementation technique will have a significant influence on the treatment success of post and core restorations. This study compared the debond stresses required to remove a double- tapered post system from a prepared post space with 3 different cements to assess which cement will be most resistant to the post debonding.
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Ringaby, Erik. "Geometric Computer Vision for Rolling-shutter and Push-broom Sensors." Licentiate thesis, Linköpings universitet, Datorseende, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-77391.
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Almost all cell-phones and camcorders sold today are equipped with a CMOS (Complementary Metal Oxide Semiconductor) image sensor and there is also a general trend to incorporate CMOS sensors in other types of cameras. The sensor has many advantages over the more conventional CCD (Charge-Coupled Device) sensor such as lower power consumption, cheaper manufacturing and the potential for on-chip processing. Almost all CMOS sensors make use of what is called a rolling shutter. Compared to a global shutter, which images all the pixels at the same time, a rolling-shutter camera exposes the image row-by-row. This leads to geometric distortions in the image when either the camera or the objects in the scene are moving. The recorded videos and images will look wobbly (jello effect), skewed or otherwise strange and this is often not desirable. In addition, many computer vision algorithms assume that the camera used has a global shutter, and will break down if the distortions are too severe. In airborne remote sensing it is common to use push-broom sensors. These sensors exhibit a similar kind of distortion as a rolling-shutter camera, due to the motion of the aircraft. If the acquired images are to be matched with maps or other images, then the distortions need to be suppressed. The main contributions in this thesis are the development of the three dimensional models for rolling-shutter distortion correction. Previous attempts modelled the distortions as taking place in the image plane, and we have shown that our techniques give better results for hand-held camera motions. The basic idea is to estimate the camera motion, not only between frames, but also the motion during frame capture. The motion can be estimated using inter-frame image correspondences and with these a non-linear optimisation problem can be formulated and solved. All rows in the rolling-shutter image are imaged at different times, and when the motion is known, each row can be transformed to the rectified position. In addition to rolling-shutter distortions, hand-held footage often has shaky camera motion. It has been shown how to do efficient video stabilisation, in combination with the rectification, using rotation smoothing. In the thesis it has been explored how to use similar techniques as for the rolling-shutter case in order to correct push-broom images, and also how to rectify 3D point clouds from e.g. the Kinect depth sensor.VGS
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Grupchev, Vladimir. "Improvements on Scientific System Analysis." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/5851.
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Thanks to the advancement of the modern computer simulation systems, many scientific applications generate, and require manipulation of large volumes of data. Scientific exploration substantially relies on effective and accurate data analysis. The shear size of the generated data, however, imposes big challenges in the process of analyzing the system. In this dissertation we propose novel techniques as well as using some known designs in a novel way in order to improve scientific data analysis.
We develop an efficient method to compute an analytical query called spatial distance histogram (SDH). Special heuristics are exploited to process SDH efficiently and accurately. We further develop a mathematical model to analyze the mechanism leading to errors. This gives rise to a new approximate algorithm with improved time/accuracy tradeoff.
Known MS analysis systems follow a pull-based design, where the executed queries mandate the data needed on their part. Such a design introduces redundant and high I/O traffic as well as cpu/data latency. To remedy such issues, we design and implement a push-based system, which uses a sequential scan-based I/O framework that pushes the loaded data to a number of pre-programmed queries.
The efficiency of the proposed system as well as the approximate SDH algorithms is backed by the results of extensive experiments on MS generated data.
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Acharya, Debopam Kumar Vijay. "Data in your space a data staging and push pull based location dependent wireless data dissemination system /." Diss., UMK access, 2006.
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Thesis (Ph. D.)--School of Computing and Engineering. University of Missouri--Kansas City, 2006."A dissertation in computer science and informatics and telecommunications and computer networking." Advisor: Vijay Kumar. Typescript. Vita. Title from "catalog record" of the print edition Description based on contents viewed Jan. 26, 2007. Includes bibliographical references (leaves 115-120). Online version of the print edition.
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Zhao, Zhengjian. "Mediating updates using a web based service." Thesis, KTH, Kommunikationssystem, CoS, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-91994.
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The European Commission had approved the Registration, Evaluation and Authorization of Chemicals (REACH) regulations in the year 2006, and will begin to implement it form 1 June 2007. This regulation greatly increases safety of protection for the users of chemicals, but it also brought a problem for the manufactures as well as downstream users. That is they have to generate and distribute much more Material Safety Data Sheets (MSDS) then before. This work is difficult for most companies since this job usually was done manually. The new regulation requires a much more efficient method to generate and distribute them. This thesis project addresses the problem of automatically distributing MSDS and the corresponding metadata. It presents the underlying technology selected for this project. It gives a brief introduction of this project, the underlying technologies used, along with the methods used to deliver relevant and up to date materials safety information. At last an HTTP web application approach was selected to solve the problem, the resulting application can efficiently notify a downstream user of the newly updated MSDS and transport the corresponding file and metadata. It is truly data driven, therefore the downstream user does not need to check for updates everyday, instead will be notified when there is an available update.Den Europeiska kommissionen antog 2006 en ny bestämmelse för informationsspridning av kemikalier, Registration, Evaluation, and Authorization of Chemicals (REACH), och den kommer att tas i bruk från första juni 2007. Bestämmelsen innebär ett starkt ökat skydd för användare av kemikalier, men den ställer även till problem för både tillverkare och användare. Exempelvis, de måste generera och distribuera betydligt fler materialsäkerhetsföreskrifter, Material Safety Data Sheets (MSDS), än tidigare. Detta arbete är krävande för de flesta företag eftersom arbetet ofta sker manuellt. Den nya bestämmelsen kräver mycket effektivare metoder att generera och distribuera MSDS. Det här examensarbetet fokuserar på problemet att automatiskt distribuera MSDS och den korresponderande metadatat. Rapporten presenterar den underliggande teknologin för examensarbetet. Därutöver ges en kort introduktion till examensarbetet, den underliggande teknologin, tillsammans med de metoderna som används för att skicka relevanta och aktuella materialsäkerhetsföreskrifter. Som avslutning väljs en HTTP Web applikationslösning för att lösa problemet. Den lösningen kan effektivt underrätta en användare att det finns en nyare MSDS och sedan skicka den korresponderande filen och dess metadata. Den är data driven, vilket gör att en användare inte måste kontrollera för uppdateringar varje dag, utan kommer att bli informerad när det finns en ny tillgänglig.
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Pettersson, Erik. "A Comparison of Pull- and Push- based Network Monitoring Solutions : Examining Bandwidth and System Resource Usage." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-299853.
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Monitoring of computer networks is central to ensuring that they function as intended, with solutions based on SNMP being used since the inception of the protocol. SNMP is however increasingly being challenged by solutions that, instead of requiring a request-response message flow, simply send information to a central collector at predefined intervals. These solutions are often based on Protobuf and gRPC, which are supported and promoted by equipment manufacturers such as Cisco, Huawei, and Juniper. Two models exist for monitoring. The pull model used by SNMP where requests are sent out in order to retrieve data, has historically been widely used. The push model, where data is sent at predefined intervals without a preceding request, is used by the implementations using Protobuf and gRPC. There is a perceived need to understand which model more efficiently uses bandwidth and the monitored system’s memory and processing resources. The purpose of the thesis is to compare two monitoring solutions, one being SNMP, and one based on Protobuf and gRPC. This is done to determine if one solution makes more efficient use of bandwidth and the system resources available to the network equipment. This could aid those who operate networks or develop monitoring software in determining how to implement their solutions. The study is conducted as a case study, where two routers manufactured by Cisco and Huawei were used to gather data about the bandwidth, memory, and CPU utilisation of the two solutions. The results of the measurements show that when retrieving information about objects that have 1-byte values SNMP was the better performer. When objects with larger values were retrieved SNMP performed best until 26 objects were retrieved per message. Above this point the combination of Protobuf and gRPC performed better, resulting in fewer bytes being sent for a given number of objects. No impact on the memory and CPU utilisation in the routers was shown.Övervakning av nätverk är av yttersta vikt för att säkerställa att de fungerar som tänkt. Lösningar baserade på SNMP har använts sen protokollet kom till. SNMP utmanas mer och mer av lösningar som, istället för att använda ett meddelandeflöde baserat på fråga-svar, helt enkelt sänder information till en insamlande enhet i fördefinierade intervall. Dessa lösningar baseras ofta på Protobuf och gRPC, vilka stöds och propageras för av bland andra utrustningstillverkarna Cisco, Huawei, och Juniper. Två modeller för övervakning finns. Pull-modellen där frågor skickas ut för att hämta data, används av SNMP och har historiskt sett använts i stor skala. Push- modellen, där data skickas i fördefinierade intervall utan föregående fråga, används av lösningar som använder Protobuf och gRPC. Det finns ett behov av att förstå vilken modell som på ett mer effektivt sätt använder bandbredd och de övervakade systemens minnes- och processorresurser. Syftet med denna rapport är att jämföra två övervakningslösningar. SNMP är den ena lösningen, och den andra lösningen är baserad på Protobuf och gRPC. Detta i syfte att utröna om endera lösning på ett mer effektivt sätt använder bandbredd och systemresurser i nätverksutrustning. Detta kan hjälpa nätverksoperatörer och utvecklare av mjukvara för övervakning att avgöra hur dessa bör implementeras. För att besvara detta används en fallstudie, där två routrar tillverkade av Cisco och Huawei används för att samla in data om de två lösningarnas användning av bandbredd, minne, och processorkraft. Mätningarnas resultat visade att när objekt vars värde var 1 byte hämtades så presterade SNMP bättre. När objekt vars värden var större hämtades presterade SNMP bäst tills 26 objekt hämtades per meddelande. Därefter presterade kombinationen Protobuf och gRPC bättre, och krävde färre bytes för att skicka information om ett givet antal objekt. Ingen påverkan på minnes- eller processoranvändningen i routrarna påvisades av mätresultaten.
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Wang, Xiaoyan. "Pull Production System Improvements : Pull Production System Improvements In GKN Driveline AB." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-16545.
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As the effort of today’s industries to continuously move towards lean production, pull production system has been developed as one possible solution of lean. It is popularly known in the industry world, and is indeed a proven technique to achieve substantial savings on inventory, production cost incurred by manufactures all over the world. However, a careful understanding of pull production systems is required to access its suitability to a particular production setup. It is necessary to develop a proper way to implement pull production systems. This study is based on a real life scenario in a leading driveline manufacturing company. The production system is studied in detail as regard to its production characteristic. A theoretical review is first made as research foundation. A careful analysis study within the company is conducted with all the existing constrains to figure out improvement opportunities. Eventually, from the applicability point of view, proposals of future pull production system implementation have been developed. The objective of the proposals is to minimize the identified weaknesses of the current system, including long lead time, low flexibility and unconnected flow.
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Gilham, Celis Adriana Catherine. "Propuesta de mejora en el sistema de planeamiento y control de la producción en una empresa metalmecánica." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2019. http://hdl.handle.net/10757/625864.
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El presente proyecto propone disminuir el stock de producto terminado y el IR empezando por los cinco productos VIP (electrodos revestidos convencionales); debido a que el stock promedio actual se encuentra en 350 ton mientras que la meta de la empresa es de 200 ton; asimismo, el IR actual es de 1.92 vueltas y se quiere llegar a un IR de 3 vueltas; generando así un impacto económico de $177,237 en promedio al cierre de cada mes en valor de inventarios. Para esto, se analiza los procesos de planeamiento y control de la producción y los estándares y políticas establecidas en la empresa.
El desarrollo de este informe va de acuerdo a los planteamientos teóricos investigados en artículos de investigación publicados en revistas y libros por varios actores con experiencia en inventarios. Cabe mencionar que este proyecto se centra fundamentalmente en aplicar la metodología Lean Manufacturing usando la herramienta Kanban Pull System, puesto que se vio que la causa principal es que actualmente presenta una política de planeamiento en función a la capacidad de planta (Sistema “Push”).
Por último, se validó la viabilidad de la propuesta de mejora mediante una propuesta de simulación, una propuesta teórica, comparación de indicadores y flujo económico. Del análisis anterior, se obtuvo que la Productividad aumentó de 286 a 301 kg/hh, la cantidad de operarios disminuyó de 117 a 90, la capacidad de planta disminuyó de 74 a 59 ton, y el periodo de recuperación de la inversión del proyecto es de 0.33 meses.The present project proposes to reduce the stock of finished product and the IR starting with the five VIP products (conventional coated electrodes); because the current average stock is at 350 tons while the company's goal is 200 tons; likewise, the current IR is 1.92 laps and you want to reach an IR of 3 laps; thus generating an economic impact of $ 177,237 on average at the end of each month in value of inventories. For this, the processes of planning and control of production and the standards and policies established in the company are analyzed. The development of this report is in accordance with the theoretical approaches investigated in research articles published in journals and books by several actors with experience in inventories. It is worth mentioning that this project focuses mainly on applying the Lean Manufacturing methodology using the Kanban Pull System tool, since it was seen that the main cause is that it currently presents a planning policy based on plant capacity (Push System). Finally, the viability of the improvement proposal was validated through a simulation proposal, a theoretical proposal, comparison of indicators and economic flow. From the previous analysis, it was obtained that the Productivity increased from 286 to 301 kg / hh, the number of workers decreased from 117 to 90, plant capacity decreased from 74 to 59 tons, and the recovery period of the project investment is of 0.33 months.
Tesis
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Sprinkle, Matthew. "Design Considerations in a Modern Land Mobile Radio System." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/33847.
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Modern Land Mobile Radio has the potential for large growth in the near future. Current regulations have set the stage for a required transition to more spectrally efficient
technologies. While several organizations are working to ease this transition, there still
remain many details and feature sets which the end user must decide amongst and often
there is no clear dividing line between these choices.
This thesis provides a high-level view of the distinguishing components in modern LMR
systems. Discussions related to trunked channel allocation, coverage, costs, security, and
other capabilities are given. The application to and effect on everyday users is also
considered. Several quantitative examples are provided to assist the end-user in
determining when a solution is viable. The discussion and analysis included reaffirm that
LMR design is complex and wide-ranging. Ultimately, the designer must evaluate needs
and technologies to provide a course of action which is optimum and justifiable.Master of Science
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Cordeiro, Nara Pereira d'Abreu. "Resistencia ao cisalhamento por extrusão - "push out" - de pinos de fibra de vidro a dentina intra-radicular." [s.n.], 2003. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288200.
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Orientadores: Mario Fernando de Goes, Luis Roberto Marcondes MartinsTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
Made available in DSpace on 2018-08-03T15:59:52Z (GMT). No. of bitstreams: 1 Cordeiro_NaraPereirad'Abreu_D.pdf: 3561839 bytes, checksum: 125cbc91719d6a902ce59502debf7873 (MD5) Previous issue date: 2003
Resumo: o objetivo deste estudo foi avaliar a resistência ao cisalhamento por extrusão (push out) entre a dentina intra-radicular e pinos de fibra de vidro nas regiões cervical, média e apical de raízes utilizando dois sistemas de cimentação adesiva. Foram selecionados vinte pré-molares inferiores unirradiculares recém extraídos por motivos ortodônticos, hígidos e livres de trincas. As coroas dos dentes foram removidas na altura da junção cemento esmalte. As polpas dentais foram removidas através de limas endodônticas e os condutos radiculares foram preparados com brocas de largo nO 5, com 8,Omm de penetração. As raízes foram divididas em dois grupos de 10: Grupo 1- pino fixados com o sistema adesivo autocondicionante ED Primer e cimento resinoso Panavia F; Grupo 2- pinos fixados com o sistema adesivo de frasco único Single Bond e cimento resinoso Rely X. Após a fixação dos pinos, as raízes foram mantidas em estufa a 37°C, por 24 h. A porção mais apical das raízes foi seccionada até a altura em que a raiz apresentasse 8,Omm de comprimento. Em seguida, as raízes foram seccionadas transversalmente e 3 discos de 2,7mm de altura foram obtidas e classificadas segundo a região cervical, média e apical do pino. O ensaio de resistência de união por extrusão foi realizado em máquina de ensaio universal Instron 4411 onde uma haste metálica com ponta ativa de 1,Omm de diâmetro produziu a carga para efetuar o deslocamento do pino do conduto radicular. Os valores médios de resistência de união por extrusão não apresentaram diferenças estatísticas significantes no terço cervical da raiz entre os dois materiais de fixação avaliados. Nas regiões média e apical do conduto, os valores de resistência de união apresentados pelo Sing/e Bond + Re/y X foram superiores e estatisticamente diferentes em relação aos valores apresentados pelo sistema ED Primer + Panavia F (p< 0,05). Para os dois materiais em estudo, não houve diferença estatística quando comparadas as regiões média e cervical do pino, porém apresentaram diferença estatística em relação à região apical (p< 0,05). Após o ensaio de cisalhamento por extrusão, os espécimes foram seccionados no sentido longitudinal para análise em microscopia eletrônica de varredura. A zona de interdifusão adesivo/dentina produzida pelo adesivo de frasco único Sing/e Bond apresentou-se mais espessa do que a zona de interdifusão apresentada pelo adesivo autocondicionante ED Primer. Houve áreas desmineralizadas com presença de túbulos dentinários abertos porém parcialmente preenchidos pela resina em ambos os grupos. Também foram observadas bolhas que variaram de tamanho e forma na camada de cimento junto à área da interface de união e mais constantes no terço apical das raízes. Palavras-chave: pino de fibra de vidro; cimento resinoso; sistema adesivo; resistência de união; "push out
Abstract: The purpose of this study was to evaluate the bond strength between fiber posts cemented in root dentin considering different depths of the roots (cervical, median and apical) and two luting materiais, through push out tests and to examine the integration among these components through scanning electron microscopy. Twenty sound bicuspids, tree trom cracks, extracted for orthodontic reasons, were selected. The crowns were removed at the cement enamel junction. The pulps were removed with endodontic reamers and the first 8,Omm of the canais were shaped with number 5 largo burs. The roots were divided into two groups of 10 each. The roots trom group 1 received fiber posts cemented with the self etching primer ED Primer and the composite resin Panavia F., while the roots of Group 2 received fiber posts cemented with the one bottle adhesive Single Bond and the composite resin Rely X. After the posts cementation, the roots were kept in humidity at 3-,0 C for 24 hours. The most apical part of the roots were sectioned until they were 8.0mm long. After that, the roots were sectioned transversally and three 2.7mm thick sections were obtained: cervical, median and apical. The push out test that evaluated bond strength between luting material and root dentin was carried out on an Instron (4411) testing machine. The specimens were positioned on a steel support platform with the post centered over a 2.0mm hole in the platform. A steel probe 1.0mm in diameter was centered over the post and used to apply force to the test specimens. Data from the push out test revealed no statistically significant differences at the cervical portion of the root between the two cementation systems tested. At the median and apical portion of the root, the bond strength values presented by the Sing/e Bond and Re/y X were superior and statistically different from those presented by ED Primer and Panavia F (P
Dentística
Doutor em Clínica Odontológica
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Gilbertson, Rebecka Lynn. "Recommendations for Surface Treatment for Virginia Inverted T-Beam Bridge System." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/83600.
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This thesis investigates the impact of interface surface treatment methods for use in the Virginia Inverted T-Beam bridge system. The specific system consists of precast beams with thin bottom flanges placed next to one another, with a cast-in-place slab on top. Previous research has shown that the strength of this system after cyclic loading is highly dependent upon the shear strength of the interface between the precast and cast-in-place sections, especially for the adhesion-based connection configuration. The approval of this bridge system for use in bridges with high daily traffic volumes hinges on the verification of its strength and durability for a 50-year lifespan.
The shear strength of ten different surface textures was tested using push-off tests to determine which interface roughening methods would prove adequate for use in the bridge system. The strength was found to depend on both the amplitude and the geometry of the undulations on the beam-to-slab interface. Using this information, a texture was selected for a new trial of the adhesion-based connection configuration, and a test specimen was constructed. After completing cyclic loading to simulate the design life of the bridge, it was found that the system achieved a strength similar to previous monotonically loaded specimens. It was concluded that the bridge is safe for use in high daily traffic areas provided that a surface roughening with adequate shear strength is used.Master of Science
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Vieira, Márcia Karolina de Lima. "Modelo de espaço de estados realimentado para controle de Um PUSH-PULL de corrente em sistemas fotovoltaicos." Universidade Federal da Paraíba, 2015. http://tede.biblioteca.ufpb.br:8080/handle/tede/8454.
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Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq
This paper proposes an alternative control strategy for feedback state space of a CC-CC converter, applied for regulation of photovoltaic (PV) systems. The control technique depends on state space equations of the photovoltaic generator connected to the inverter. The controller gains are projected through the construction of a characteristic polynomial, which considers the terms of controllability and uses the formulation of Ackermann. The proposed method is initially tested by computer simulation using Matlab/Simulink environment. We present experimental results using the photovoltaic panel with the push-pull that prove the satisfactory performance of the proposed control.
Este trabalho propõe uma estratégia alternativa de controle por realimentação de espaço de estados de um conversor CC-CC, aplicado para fins de regulação de sistemas fotovoltaicos (PV). A técnica de controle depende de equações de espaço de estados do gerador fotovoltaico ligado ao conversor. Os ganhos do controlador são projetados por meio da construção de um polinômio característico, que considera as condições de controlabilidade e utiliza a formulação de Ackermann. O método proposto é inicialmente testado por simulação computacional, utilizando o ambiente Matlab/Simulink. São apresentados resultados experimentais utilizando o painel fotovoltaico junto com o push-pull que comprovam o desempenho satisfatório do controle proposto.
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Nuñgulu, Agostinho Tchivange Nandjunge. "Monitorização das espécies de brocas do milho em Angola. Gestão das suas populações com recurso a plantas-isco e plantas repelentes." Doctoral thesis, ISA/UL, 2014. http://hdl.handle.net/10400.5/9260.
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Doutoramento em Engenharia Agronómica - Instituto Superior de AgronomiaStem borers (Insecta: Lepidoptera) in Africa emerge as a major biotic constraints to cereal production. The distribution of species depends on the region and the losses tend to be higher in altitude. For the monitoring of species of stem borers in Angola were used sex pheromone traps for Busseola fusca, Chilo partellus and Sesamia calamistis that were installed in Cavaco, Alto Kapaka, Cela, Chianga and Humpata. To study the management of populations of stem borers using the push-pull system were held in Huambo tests, using as attractive plant Pennisetum purpureum and as repellent plant Desmodium uncinatum. It was found that the three species monitored were present at all sites sampled B. fusca was the dominant species in Chianga, Cela and Alto Kapaka and S. calamistis in Cela and Cavaco. In capturing the pheromone B. fusca ‘Pherobank’ was significantly more effective than pheromone ‘Insect Science’. The incidence of attacks of borers in maize ranged between 86.2% in the control and 14.4% in the treatment maize x P. purpureum x D. uncinatum. For the four years of trials the average production increase in treatment that used attractive and repulsive plants was 340.6%, compared to maize alone
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Yuvaraj, Vasanth Raj, and Sifei Zhang. "Reducing WIP Inventory of Production Line in AQ Segerström & Svensson AB." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-19202.
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The major objective of present study is to find out the sources which cause higher Work in Process (WIP) in the production line. In which a detailed analysis is performed in the area of inventory, reorder point, Takt time, and Kanban. All the analyses are based on the data obtained from the company’s ERP system and have been used to run some scenarios during the analysis.Lots of problems are responsible to cause higher WIP. But current report only focuses and concentrates in leveling the work load, implementing pull system, suggesting reorder point and Takt time.The current situation is described through Value-stream Map (VSM) and the impact cost matrix is used to show the impact of each problem in the production line in terms of costs. In the analysis chapter, root cause method has been used in order to show the cause and effect of higher WIP. Detailed analyses together with explanations are listed by orders. Therefore, three major suggestions are proposed and the future VSM is plotted to show the effect and change of the suggestions which helps to improve the current situation by eliminating the waste.
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Martins, Daniela Ferreira. "Motivações e processo de decisão da geração Y para a realização de viagens." Master's thesis, Instituto Superior de Economia e Gestão, 2019. http://hdl.handle.net/10400.5/19722.
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Mestrado em MarketingA geração Y representa actualmente grande parte da população mundial e as suas características únicas estão a revolucionar todos os mercados. Assim, estes indivíduos são um alvo de estudo interessante não só por serem uma "geração viva" e ainda em desenvolvimento, mas também por terem nascido e crescido na era digital reflectindo-se na forma como olham para o mundo. Desta forma, a geração Y tem vindo a desafiar modelos tradicionais, desempenhando um papel activo naquilo que hoje conhecemos como globalização e consequentemente, no turismo - um sector que está a viver grandes alterações de forma a ir de encontro às expectativas da mesma. Por isso, importa compreender quais motivações da geração Y para viajar e qual o seu processo de tomada de decisão de forma a que a oferta turística tenha um impacto de maior valor para este público-alvo. Os resultados deste estudo sugerem que as viagens são vistas como uma experiência enriquecedora a nível pessoal e que a frequência elevada com que estes indivíduos viajam está relacionada com a exploração do "eu" e com a necessidade de sair da rotina e zona de conforto.
Generation Y is now representing a big part of the world's population and its unique characteristics are revolutionising all markets. Thus, these individuals are an interesting subject of study not only because they are a "living generation" and still in development, but also because they were born and raised in the digital era which reflects in the way they look at the world. As a result, generation Y has been challenging traditional models and has been playing an active role in what we now know as globalization and consequently, in tourism - one of the sectors that is undergoing major changes in order to meet millennial's expectations. Therefore, it is important to understand what truly motivates generation Y to travel and what is their decision-making process so that the tourism offer has a greater impact on this target audience. The findings of this study suggest that travel is seen as a personally enriching experience and that the high frequency with which these individuals travel is related to the exploration of self and the need to get out of routine and their comfort zone.
info:eu-repo/semantics/publishedVersion
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Jaegler, Yann. "Optimisation du ConWip dans un environnement multiproduit." Thesis, Paris, ENSAM, 2018. http://www.theses.fr/2018ENAM0038/document.
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Au cours de la dernière décennie, le système de contrôle de production (PCS) Constant Work InProgress (CONWIP) a été étudié par un nombre croissant de publications. Compte tenu des défis industrielsactuels, tels que la nécessité de s’adapter, la personnalisation croissante des produits, la réduction des délaiset l’importance grandissante du service rendu aux clients, le ConWip semble être un PCS efficace et agilepour les industriels. Cette thèse débute par une revue systématique des travaux sur le ConWip remontant à2003 basée sur une méthode de classification originale. Cette méthode permet de catégoriser les papiers quise concentrent sur le dimensionnement, la performance, le contexte d’implémentation et la comparaison avecd'autres PCS. En plus de proposer une clé de lecture pour interpréter les approches de recherche, les critèresconsidérés répondent à des questions sur la façon de mettre en oeuvre, la façon d’optimiser et les raisonspour lesquelles utiliser le ConWip. Une étude sur les pistes de recherche proposées ou applicables au ConWipa ensuite permis de mettre en évidence les plus prometteuses et d’en extraire les principales tendances.L'objectif consiste ici à mettre à jour les lacunes de la recherche existante sur le ConWip. L'une d'entre ellesamène à des questions clés liées à la mise en oeuvre du ConWip dans un environnement caractérisé par unmix produit élevé et/ou par un mix gamme opératoire élevé. Dans ce contexte, quatre algorithmes qui génèrentdifférentes gammes génériques sont ensuite présentés. Ces gammes, appelées « gammes enveloppes » sontimplémentées dans Wipsim, un outil d'ingénierie utilisé dans les projets de conception et d'amélioration deslignes d'assemblage ConWip, qui permet de calculer les paramètres ConWip optimisés pour chacune desgammes. Un échantillon de données, dérivé d'un cas industriel, est utilisé pour tester les quatre algorithmes.Nous les comparons à travers leur sensibilité au mix produit et selon l'impact induit par l'introduction dedifférents produits atypiques dans le mix. Nos expériences montrent que nos algorithmes génèrent desgammes enveloppes pertinentes et aident les praticiens à choisir le plus adapté à leur contexte spécifiqueIn the past decade, a growing body of literature has investigated the CONstant Work InProgress (ConWip) production control system (PCS). In view of the current industrial challengesentailing adaptability, product customisation, decreas- ing leadtimes and customer satisfaction, ConWipseems to be an effective and adaptive PCS for manufacturers. A ConWip systematic review datingback to 2003 and provides a guide for understanding through an original classification method. Thismethod enables the differentiation of papers that concentrate on Con- Wip sizing, performance andcontext as well as a comparison with other PCSs. In addition to providing a key to interpreting theresearch approaches, the criteria considered answers questions on how to implement, how to optimiseand why and when to use ConWip. The survey of research avenues proposed or applicable to CONWIPclassify them, highlight the most promising and extract the main trends. The final aim is to provide somegaps. One of the them deals with key questions related to the implementation of ConWip in a highproduct mix and/or high routing mix environment. Four algorithms that generate different genericroutings are presented. These routings are implemented into Wipsim, an engineering tool used inprojects to design and improve ConWip assembly lines, which allows the optimized ConWip parametersfor each routing to be calculated. A sample of data, derived from an industrial case, is used to test thefour models. We compare them via their sensitivity to the mix product and through the impact of theintroduction of different, atypical products. Our experiments show that our algorithms generatedworthwhile generic routings and help practitioners choose among them, depending on a specificcontext
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Mahindre, Prajakta Prakash. "Micro-push-out bond strength and the modes of failure for a fiber-reinforced resin-post system cemented using four adhesive lutingcements." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B43224052.
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Mahindre, Prajakta Prakash. "Micro-push-out bond strength and the modes of failure for a fiber-reinforced resin-post system cemented using four adhesive luting cements." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B43224052.
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Liang, Hai-chiung, and 梁海瓊. "Micro-push-out bond strength and the modes of failure for a fibre-reinforced resin-post system cemented using three adhesive lutingcements after cyclic loading." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45591106.
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Žák, Jaromír. "Návrh a optimalizace senzorických systémů využívajících malovýkonových napájecích generátorů." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-234527.
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Dissertation thesis is focused on using alternative energy sources called energy harvesting. This thesis offers a solution to problems with autonomous powering of sensor networks if primary power source recovery is impossible. In these cases, energy of the external power (e.g. temperature, light, motion) should be used. Proposed solution should be especially used in the field of medical applications (e.g. cochlear implants, pacemakers, insulin pumps). Long time monitoring of the personal health status is also possible when employing automated sensor systems. In this work, there is state of art review relating to the low power energy sources for an alternative powering of sensor systems. It was observed that existing systems are almost prepared for the implementation of energy harvesting power sources. The energy harvesting power sources have been developed by numerous researcher teams around the world, but there are only a few variants of power management circuits for effective energy gaining, storing and using. This area has a huge potential for the next research. The issues regarding to the distribution of gained energy are solved on the complex level in the thesis. For these purposes, a new simulation model of the whole system (fully implantable artificial cochlea) including its subcircuits was developed in the SPICE environment. It connects independent subcircuits into a single comprehensive model. Using this model, a few novel principles for energy distribution (e.g. Charge Push Through technique) was developed. In the near future, these techniques are also applicable to the design of versatile sensor systems.
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Basso, Renato Gioielli. "Estratégia de planejamento de produção e os sistemas ERP em ambientes sujeitos ao fenômeno hockey-stick." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/3/3136/tde-19072016-120435/.
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O ambiente competitivo atual tem colocado pressão no processo de tomada de decisão no mundo corporativo. Os trade-offs das prioridades competitivas discutidos na elaboração da estratégia como custo, qualidade, serviço e flexibilidade já não são suficientes. Estes trade-offs, embora importantes no curto prazo, devem ser compatibilizados de modo que as empresas que tenham o melhor balanço entre eles devam ter resultado superior. Um dos trade-offs bastante discutido é o equilíbrio entre serviço e estoque. A percepção é que seja improvável alcançar excelência no serviço sem ter um considerável nível de estoque. Deste cenário nasce então o paradoxo do uso de sistemas MRP (Material Requirement Planning) versus sistemas JIT (Just in Time), ou melhor, sistemas empurrados versus puxados, já que a escolha por um ou outro sistema tem ligação íntima com a gestão de estoque. Se por um lado os sistemas MRP são largamente utilizados, via softwares ERP, por outro sistemas JIT têm trazido importantes melhorias nos resultados. Embora muitas empresas considerem a adoção exclusiva de um ou outro sistema, algumas delas têm adotado um processo híbrido com o objetivo de tirar o melhor de cada sistema e gerar assim desempenho superior. O objetivo deste trabalho é investigar como as empresas inseridas em mercados caracterizados pela concentração de demanda no final do mês (fenômeno conhecido como hockey-stick), e baixo acerto nas previsões de demanda, estão aplicando suas estratégias de planejamento de produção e seus ERP. Se por um lado a baixa acurácia nas previsões causa um problema na aplicação de estratégias empurradas de planejamento, pois requer um alto estoque de segurança associado, por outro a concentração de embarque dificulta a adoção de uma estratégia puramente puxada, já que o sistema não tem a estabilidade necessária. Para cumprir com este objetivo seis estudos de caso foram conduzidos e os resultados encontrados, suportados pela teoria, sugerem o aparecimento de um modelo híbrido eficaz para planejamento no ambiente estudado assim como o aparecimento de um sistema DSS (Decision Support System). Outra contribuição desta pesquisa foi identificar, em um dos casos, uma empresa que conseguiu atacar de maneira eficaz o fenômeno em sua causa raiz neutralizando assim seus efeitos.The highly competitive environment of modern times has put pressure on the decision-making process in the corporate world. The trade-offs of competitive priorities such as cost, quality, service and flexibility are no longer enough. These trade-offs, albeit important in the short term, must be matched so that companies that have the best balance between them should have superior results. One of the tradeoffs widely discussed is the balance between service level and inventory. The perception is that excellence is not likely to be achieved in service without having a significant level of inventory. From this scenario comes the paradox of using MRP systems (Material Requirement Planning) versus JIT systems (Just in Time), or rather \"pushed\" systems versus \"pulled\" systems since the option for one or the other system has a close connection with inventory management. On the one hand, MRP systems are widely used in industry through ERP software; on the other hand, JIT systems have obtained better results. While many companies consider adopting one or another system, some of them adopt a hybrid process with the goal of taking the best of each system and generate superior performance. The purpose of this research is to investigate how companies inserted in markets characterized by sales peak at the end of the month (hockey-stick phenomenon), and low accuracy in demand forecasts, are applying their production planning strategies and their ERP. Low forecast accuracy causes a problem in applying pushed strategies as it requires a high safety stock associated. Conversely, the sales peak hinders the adoption of a purely pull strategy since the system does not have the necessary stability. To meet this goal, six case studies were conducted and the results found and supported by the theory suggest the emergence of an effective hybrid model for planning in the environment studied as well as the appearance of a DSS (Decision Support System). Another contribution of this research was to identify in one of the cases a company that managed to effectively tackle the phenomenon in the root cause, neutralizing its effects.
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Freitas, Miller Nunes de. "Desenvolvimento, caracterização e avaliação de um sistema osmótico do tipo bicamada." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/9/9139/tde-27022009-170513/.
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Os comprimidos osmóticos do tipo bicamada ou \"push pull\" são sistemas reservatórios constituídos de um núcleo bicamada, circundado por uma membrana semipermeável e com um orifício de liberação perfurado a laser que permitem a liberação do fármaco através da cinética de ordem zero. Este sistema possui a vantagem de apresentar uma liberação controlada e não influenciada pelos fatores fisiológicos do trato gastrointestinal, permitindo aplicações terapêuticas para novos fármacos e inclusive para fármacos já existentes. O presente projeto contemplou as etapas de desenvolvimento, caracterização e avaliação de um sistema osmótico do tipo bicamada ou \"push pull\", para veiculação do atenolol, um beta bloquador de grande importância na terapia antihipertensiva. Após a padronização e validação da metodologia analítica, estudos de compatibilidade entre o fármaco e os excipientes através da análise calorimétrica e espectroscopia no infravermelho (pré-formulação), a produção, a caracterização da membrana de revestimento e, por fim, a avaliação do desempenho dos núcleos osmóticos foram realizados. Assim, três lotes, com 4kg cada, foram produzidos para determinação do peso médio e do ferramental adequados, além da proporção entre os excipientes da formulação. O processo de compressão deu origem aos núcleos osmóticos do tipo bicamada que foram submetidos à avaliação físico-química como determinação do peso médio, da dureza, da friabilidade e da espessura. Além disso, padronizou-se o processo de revestimento dos núcleos com membrana semipermeável e avaliou-se o perfil de captação de água dos núcleos resultantes (\"Swelling\"). A membrana de revestimento foi submetida à microscopia eletrônica de varredura (MEV), análise por adsorção de nitrogênio e porosimetria de mercúrio para verificação da distribuição e tamanho médio dos poros. Para a obtenção do orifício de liberação padronizou-se a quantidade de radiação a laser suficiente para perfuração da membrana semipermeável que envolve os núcleos. Após a perfuração a laser, os núcleos foram submetidos então ao estudo de liberação in vitro para avaliação da influência do diâmetro de orifícios, do número de orifícios, da espessura da membrana semipermeável, da hidrodinâmica do meio de dissolução e da influência térmica na velocidade de liberação do fármaco. A cinética do tipo ordem zero e o controle da liberação do fármaco ao longo do tempo foram alcançados com sucesso a partir dos núcleos osmóticos produzidos no lote 03.The push pull osmotic release tablets are bilayer core reservoir systems surrounded by semi permeable membrane and with one delivery hole where the drug is released through, following zero order release kinetics. This system has many advantages and two of them are the controlled drug release and independence of physiologically factors allowing many therapeutic applications to new one and known one drugs. This exclusive work proposed the development, characterization and evaluation of atenolol push pull osmotic system that is very important to antihypertensive treatment. After analytical standardization and validation activities, the pre-formulation studies using calorimetric and infra red spectroscopy techniques, manufacturing, semi permeable membrane characterization and finally osmotic tablets performance evaluation were performed. Batches about 4 kg each one were manufactured and tablets average weight, by-layer proportionality and suitable punches were chosen. Thus the osmotic tablets obtained by bi-layer press were physical and chemical evaluated (average weight, hardness, friability, and thickness). After that the tablets were submitted to a coating process with semi permeable membrane and the uptake water profile (Swelling) was observed to characterize the membrane permeability. The semi permeable membrane was submitted also to scanning electron microscopy (SEM), nitrogen adsorption and mercury porosimetry techniques in order to characterize the porous average diameter and distribution. To produce the delivery hole in the drug layer semi permeable membrane the sufficient laser radiation amount was studied and determined. So the perforated osmotic tablets were submitted to in vitro drug release studies to evaluate the influence of hole diameter, hole number, coating thickness, medium hydrodynamic and temperature stress responsible for drug release modifications. Finally the controlled delivery and the zero order drug release kinetics were achieved successfully from osmotic tablets developed and produced in the third bath. This third bath was the result of the factors comprehension and the optimization of the early ones.
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Muhdi, Rani. "Re-Engineering the Operational System to Enhance the Customer Orientation of a Mid-Size Firm: A Field Study." [Johnson City, Tenn. : East Tennessee State University], 2002. http://etd-submit.etsu.edu/etd/theses/available/etd-0319102-195053/restricted/Muhdir041002a.PDF.
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Muntermann, Jan. "Event-driven mobile financial Information-Services : design of an intraday decision support System /." Wiesbaden : Dt. Univ.-Verl, 2007. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=016494719&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
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Santos, Junior Francisco Antonio Ferreira dos. "Modelagem, análise e experimentação de sistema fotovoltaico isolado baseado em plataforma de simulação com diagrama de blocos." Universidade Federal da Paraíba, 2016. http://tede.biblioteca.ufpb.br:8080/handle/tede/8444.
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This paper presents a block diagram modeling of a grid-independent photovoltaic power generation system, including the steps of DC regulation, voltage inversion, and control system based on dynamic simulations in Simulink / Matlab® exclusively using the built-in blocks available in its library. A well-known technique in literature called MPPT (maximum power point tracking) was used for tracking the maximum power of the photovoltaic generation. However, the control that was used to maintain a constant output voltage of the Push-Pull is based on a method that is similar to the MPPT, which configures a novelty of this research. The integration of modeling the entire PV system with these control systems is carried out in Simulink for investigaton and production of simulation results. An experimental platform that includes an emulator of photovoltaic panels, a 1 kW Push-Pull converter, a three-phase inverter with three arms and a hydraulic load constituided by a motor-pump was built in the laboratory. The experimental results corroborate the methodology that was used.
Este trabalho apresenta uma modelagem em diagramação de blocos de um sistema de geração de energia fotovoltaico isolado, incluindo as etapas de regulação CC, inversão de tensão e sistema de controle com base em simulações dinâmicas no ambiente Simulink/Matlab® utilizando, exclusivamente, os blocos built-in disponíveis em sua biblioteca. Uma técnica bem conhecida na literatura foi utilizada para o rastreio da máxima potência da geração fotovoltaica. No entanto, o controle utilizado para manter a tensão de saída constante do Push-Pull é baseado num método similar ao do rastreio da máxima potência, o que configura uma novidade deste trabalho. A integração da modelagem de todo o sistema fotovoltaico com estes sistemas de controle é realizada no ambiente Simulink para averiguação e produção dos resultados de simulação. Uma plataforma experimental que inclui um emulador de painéis fotovoltaicos, um Push-Pull de 1 kW de potência, um inversor trifásico de três braços e uma carga hidráulica constituída por um motobomba foi construída em laboratório. Os resultados experimentais corroboram a metodologia utilizada.
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Andijani, Abdulbasit A. "Analysis of pull and push production systems /." The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487777170408315.
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Jernberg, Johan. "Metoder för att sända meddelanden från QT Systems fastighetssystem till smarta telefoner." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-121896.
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Företag har länge kunnat nå ut med information till kunder via traditionella metoder så som sms och e-post. I och med den stora populariteten hos smarta telefoner och sociala medier har information nu blivit extra viktigt. Med detta har det även kommit nyare sätt för företag att kommunicera med sina kunder så som via push-notifikationer till smarta telefoner och webbläsare eller via sociala medier. Projektet beställdes av QT Systems och hade som syfte att ge företaget en bättre inblick i vad de har för möjligheter när det gäller att nå ut med information till deras kunder. Målet med projektet var att finna den metod som bör passa bäst för att just QT Systems fastighetssystem ska kunna notifiera deras användare om olika händelser och att kunna visa att denna går att implementera i detta system. Under arbetets gång bestämdes det att push-notifikationer till en native app skulle vara den bästa lösningen. Det har även gjorts ett ”proof-of-concept” som visar att den valda metoden kommer gå att implementera i QT Systems fastighetssystem och åtminstone nå ut till smarta telefoner som har Android eller iOS som operativsystem.For a long time companies have been able to reach out to customers by traditionally methods such as SMS or e-mail. The huge rise of popularity in smartphones and social media now makes information more important than ever. With this there are newer ways for companies to communicate with their customers such as push-notifications by native apps and browsers or by social media. This project was ordered by QT Systems with the purpose to give the company a better view of their possibilities when it comes to reaching out with information to their customers. The goal with the project was to find the best method for allowing QT Systems' real estate system to notify their users of certain events and to show that this method can be implemented in this system. During the course of this project it was decided that push-notifications by a native app would be the best solution. A ”proof-of-concept” which shows that this method can be implemented in QT Systems' real estate system and that it can be used for at least Android and iOS smartphones was also done.
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Kergunteuil, Alan. "Des odeurs pour protéger les cultures : utilisation de composés volatils pour modifier le comportement de la mouche du chou, Delia radicum et de ses ennemis naturels." Phd thesis, Université Rennes 1, 2013. http://tel.archives-ouvertes.fr/tel-00983404.
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Les recherches menées au cours des dernières années ont permis de mettre en évidence les nombreuses fonctions écologiques des composés organiques volatils (COVs) émis par les plantes. Cette thèse a eu pour objectif d'utiliser ces connaissances dans un cadre de protection des cultures. Nous avons essayé de poser les bases d'une stratégie de type " Push-Pull " contre la mouche du chou (Delia radicum) en utilisant des sources d'odeurs synthétiques (diffuseurs de COVs) ou des sources d'odeurs naturelles (plantes compagnes). A partir d'observations menées en plein champ nous avons sélectionné plusieurs brassicacées présentant des taux d'infestations contrastés vis-à-vis de la mouche du chou. Des expérimentations de laboratoires combinant des études comportementales et des analyses chromatographiques ont permis (i) d'établir un lien entre l'infestation et l'attractivité de certaines plantes (ii) d'identifier de nouveaux COVs potentiellement impliqués dans les prises de décisions comportementales de D. radicum. En parallèle, des études de terrain ont permis de tester l'efficacité de diffuseurs de COVs synthétiques au sein de parcelles expérimentales, que ce soit (i) pour favoriser le recrutement d'ennemis naturels (ii) attirer (composante " Pull ") ou repousser (composante " Push ") la mouche du chou. Enfin, l'utilisation de plantes pièges concentrant le ravageur semble être intéressante pour modifier la répartition de la mouche du chou à l'échelle de la parcelle en vue de protéger des cultures d'intérêt telles que le brocoli.
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wang, Huai-I., and 王懷毅. "SIP BASED PUSH DATA SERVICE SYSTEM." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/91702055646286566666.
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碩士國立高雄應用科技大學
資訊工程系
97
Traditionally, people usually get the information by PULL way, but this way is unable to let us obtain the information that we want in the first time. Therefore, PUSH is the best solution of this kind of demand. Session Initiation Protocol takes the multimedia construction and news transmission ability that exist in the Internet as foundation, providing the conformity pronunciation with other multimedia communication service to achieve the goal of multimedia mmunication protocol. Besides the VoIP application, SIP also suitable in the news conference and immediate news scope. Furthermore, when 3GPP standards organization drew up the standard of UMTSR5, SIP became the main protocol of IP Multimedia Subsystem territory. The progress and popularization of wireless communication technology have the revolutionary influence regarding people's communication manner. The Push Technology is one of the main information dissemination manners, and cell phone also became the present people’s important tool to obtain the news. This research mainly establishes a system of information push broadcast. Under the present system unchangeably situation, setting an intermediary service system SIP PUSH DATA SERVER as the foundation coordinates IPPBX and the mobile device that take Session Initiation Protocol (SIP) as foundation to achieve the prompt news pushes broadcasts (PUSH) and the penetration audio frequency control to achieve the prompt receive and response, the application domain is quite widespread and has high value of development.
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Cho, Yi-hua, and 卓宜樺. "Video On Demand System With Push Management." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/80111337925109033648.
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碩士東海大學
資訊工程學系
98
Along with the trend of media digitalization, Video on Demand has become a popular issue. Besides traditional functions of Video on Demand, this article extendedly discusses application of Push Management, which includes functions of Media Scheduling, Push Function and News Ticker Function. With this new application, this system will be used in the most efficient way. With regard to the functions of Push Management, managers can preset a specific time for video playing. Push Management is able to automatically play video according to the selected time without human operation. Moreover, managers can remotely control this system from a distance only via their web-browser, which the traditional Video on Demand can not compare with.
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Ting, Jung-Hung, and 丁榮鴻. "A Location Aware Active Push Teaching System." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/80844933386077908518.
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碩士國立成功大學
工程科學系碩博士班
93
The rapid advance of technology on the wireless communication network promotes the popularization of mobile devices, such as notebook, PDA and cell phones. These devices possess advantages in three main aspects: portability, mobility, and wireless, which contribute further in the realization of “Location Based Service”. Nowadays, studies related to the information of locations on wireless networks include “services based on the information of locations” and “providing services at some specific locations”. These are generally referred to as “Location Based Service”. In the mobile e-commerce, location-based services are important applications, which allow users to satisfy their specific demands timely, while on the go, according to the users’ location information. However, to provide such a complete location-based service is not an easy task. Several technologies must be integrated and various resources must be coordinated. This thesis provides location-based service for students in class based on the local wireless network. By using the wireless network equipments in every classroom, teachers can actively push their teaching materials to students’ mobile devices. It can enhance the interactions between teachers and students and thus improve the learning quality.
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Lin, Cheng-Wei, and 林政維. "An Intelligent Push System for Mobile Clients." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/91500936835619683148.
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碩士國立嘉義大學
資訊工程研究所
91
With great advances in the mobile technology and wireless communications, users expect to access the Internet anytime anywhere. However, the resources on the mobile devices (limited computation, storage, communicational capability and battery life) and wireless links (limited and variant bandwidth, high error rate, high communication cost and changing quality of services) are obviously inferior to the fixed peers. Traditionally, two typical approaches for information dissemination are Pull and Push. In the Pull approach, users have to explicitly send out requests to the servers when they need the data. By contract, in the Push approach, the users will automatically get updated information after previous subscription with related servers. To save limited resources on the mobile devices and wireless links, actively push updated information from the server to the mobile subscribers would be a good choice. However, due to particularities of mobile communications, kinds of challenges, such as changing location and frequent disconnections of the mobile users, complicated user interfaces for different capabilities of mobile devices, and sophisticated server facilities to filter content and to trigger associated procedures for demanding users, are partially solved to achieve pushing timely information to the mobile users. In this thesis, an Agent-based mobile push system for delivering updated information to the mobile subscriber is developed. Also, an Intelligent Cache Management scheme with dynamically adaptive capability is designed for efficiently managing coherency between Agent and Server. By using the proposed push system, mobile users can obtain updated information with personalized content and customized presentation anytime anywhere using any available devices.
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Lin, Hung-Pin, and 林鴻斌. "Design and Implementation ofAsynchronous Server Push MultipartyConferencing System." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/yjrt2g.
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碩士國立臺北科技大學
電機工程系所
96
We have implemented the asynchronous server push multiparty conferencing system. It divides into a server part and a client part. The server part comprises one Web server for user’s connection state, share conference file and record conference and one push server for push message to user. When push server has new message push it to client. Server push pattern can upgrade server’s loading ability and stability. We design the server using MVC (Model-View-Controller) pattern. MVC pattern can divide Web system’s data and view. That let system easy to develop and expand. We design client using Ajax (Asynchronous JavaScript and XML) pattern. Ajax’s asynchronous request ability can get more real time response from server and change Web page immediately. These advantages let user have friendlier user interface. The conferencing system of this paper comprises user join and leave, message transmit, and file upload and download. Client and server’s interactive use Ajax pattern mostly. This kind of real time interactive let conferencing system have better effect of share file and communicate.
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Yu, Li-hsing, and 游力行. "P2P-like File Push System Using Mobile Agents." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/00883760040115288433.
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碩士國立成功大學
工程科學系碩博士班
95
The purpose of using mobile agent to support push technology is that could migrate between nodes, reduce the network overhead of push server, and client will not waste time to look up the interesting information. The arrival that should be broadband network, it is more extensive to push technology, not confining low-size message transmission , the substitute is the application of the large-size transmission such as Digital Advertising board. Client-Server Push Technology on the premise of stopping improving the server ability to the limit forever, how reach with limited network ability to handle large-size transmission message ? The most rate of utilization in the network flow is by the P2P file Sharing, advantage of this structure is that all clients must contribute self network ability to obtain good speed of downloaded. So the utilization of whole network is better than Client-Server file sharing structure. The purpose of thesis is to probe the mobile agent push technology using P2P file sharing concept, is it better or not to handle large-size transmission message? The implementation of a prototype system is based on MACE (Mobile Agent Carrier Environment). Prove that P2P-like push system using mobile agent will better than Client-Server push system using mobile agent of handling large-size transmission messages.
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JAN, SHUN-YUAN, and 詹順淵. "Flow Characteristics and Disign Guidelines Push-Pull Ventilation System." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/85733630683172970774.
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碩士國立臺灣科技大學
機械工程系
92
This thesis presents the results of the two-year research on the push-pull ventilation system. The aerodynamic characteristics such as the flow patterns, velocity field, streamline evolutions, characteristic flow modes, and characteristic flow regimes of the push-pull ventilation system are cross-examined by using the laser-light sheet smoked-flow visualization method and the laser Doppler velocimety. Four characteristic flow modes, which are denoted as dispersion, transition, encapsulation, and strong suction, are identified in the domain of the push jet and pull flow velocities at various open-surface tank widths and rising gas velocities. It is argued phenomenologically from the aerodynamic point of view that operating the system in the strong suction regime would be a better strategy than operating in other characteristic regimes for the consideration of capture efficiency. Design guidelines are developed and summarized according to the results obtained in this work. The regression formula for calculating the critical values of the push jet and the pull flow velocities are provided for easy access. The sulfur-hexafluoride tracer gas validation technique is performed to measure the capture efficiency. The results of tracer gas validations are consistent with those obtained from the aerodynamic visualization and measurements. The operation points obtained by employing the ACGIH design criteria are compared with the the present results in both the aerodynamics and the capture efficiency. Methods for improving the capture efficiency and energy consumptions are suggested.
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Wang, Yu-Wen, and 王昱文. "Improving QoS in Push-Pull P2P Live Streaming System." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/01605476442388156593.
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碩士國立臺灣大學
資訊工程學研究所
99
During recent years, the emerging push-pull P2P streaming architecture has appeared to be the most promising way to efficiently distribute video content over the Internet which offers a good trade-off between pull-based and push-based architecture. We observed that video quality guarantee is an important issue for the users in these systems, but the current push-pull p2p streaming system contains no video quality guarantee mechanism to prevent users from video quality degradation when encountering network bandwidth or resource inadequacy. However, importance-first (IF) scheduling cannot be applied to P2P streaming directly, because it may suffer from serious content bottleneck especially in large scale. In this work, we proposed an adaptive Strategy-Switch Push-Pull Scheme that peers will adaptively adjust the scheduling strategy between random scheduling and importance-first scheduling scheme according to their buffer status to prevent from serious content bottleneck for low priority chunk. We use the simulation to show that our scheme can not only keep the characteristic of high performance of the push-pull architecture but also achieves the better video quality guarantee.
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Tai, Wei-Shen, and 戴偉勝. "A Personal Information Push Delivery System Based on Knowledgebase." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/74226506808198077571.
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碩士大葉大學
資訊管理研究所
89
Internet provides a powerful disseminative ability for users to acquire information more efficient and fast. Whereas, increasing large scale of data induced some problems while users face the information overload situation become more serious. By using information retrieval technique, information push delivery provides a good solution for users to acquire rich information from Internet. In fact, providing the personal service for users is one of the most important issues in electronic commerce (EC) environment. In order to increase the interaction between enterprises and customers, many enterprises provide personal services to improve management performance and competitiveness. In this study, the fuzzy retrieval and similarity measurement techniques are applied to establish a personal information push delivery system. This system will provide users for the right and interested information effectively. Finally, enterprises can use the personal information push delivery system to satisfy different requirements for different users and improve the customer service level.
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Lin, Min-Feng, and 林敏峯. "Development of Factory Automation Monitoring Using Push Message System." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/z6u8md.
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碩士國立臺灣海洋大學
資訊工程學系
105
Connect the factory equipments to the internet, let the host collect the production data of each machine can surely enhance the overall productivity and make real time adjust on costs and production according to customerized requirements. Combine the technique of cloud analysis with production data is also the one becoming a trend. Newer automation equipment with better hardware specification has the ability to communicate the host, the protocol may differ according to different developers. If an automation equipment doesn’t have an appropriate hardware or it’s too out-moded, it may not have the ability to access the Internet. Then, we would need human to collect data, which lacks instantaneity and accuracy. Thus, how to make these automation equipments with no appropriate hardware connected to the Internet, and then combine the production data with cloud data analysis technology will be the key factor to move on to Industrial 4.0. In this paper, we use MQTT (Message Queue Telemetry Transport) network protocol to make real-time monitoring of the automation equipment come true. With the assist of smartphone, out-dated automation equipment can access the Internet achieving the implementation of the graphics and user-friendly interface (User Interface). We also use Ethernet, Wifi or Bluetooth as the trunk of the connection, and the Database for data collection and storage in order to facilitate the post review and analysis of information and design good control strategies.
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Chiao, Tseng Lin, and 曾琳喬. "Learning Pull and Push Replenishment System through Game Design." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/87197047474504930723.
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碩士明新科技大學
工業工程與管理系碩士班
103
The result of globalization has brought uncertainty and risk to the consumer’s market and strict challenges to the supply chain system, therefore, only through continuous improvement and innovation, the following requirements can be satisfied, for example, gradual diversified demands from customer, effective reduction of the inventory level of the enterprise, effective reduction of product delivery lead time and transportation cost, and the enhancement of the accuracy of prediction and enhancement of service level for customer. In traditional supply chain inventory management, Push Replenishment System that can predict the consumer’s demand is used as basis of replenishment, however, the uncertainty in the demand has led to large amount of inventory and loss in the company. Meanwhile, the Pull Replenishment System developed based on the Theory of Constraints (TOC) uses real consumption demand as the replenishment basis, therefore, it can greatly reduce the inventory and satisfy customer’s demand, however, in the supply chain teaching, it is very difficult for the students to understand the differences among different inventory management methods, and even the managers in an enterprise are lack of a clear understanding on these management methods, not to say to apply them in practical cases. This study uses the related theories of Game-Based Learning to perform the design of the game of physical simulation of inventory management, meanwhile, it is fulfilled in the teaching and learning, and the learning outcome is tested using questionnaire survey before and after the game. The questionnaire survey result shows that the game designed in this study can enhance student’s learning interest and learning motive, meanwhile, the students can participate aggressively in the game to achieve the outcome of cooperative learning, in addition, the teaching outcome is also enhanced.
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Wang, Jun-Wei, and 王駿維. "Intelligent health helper system with push notification by GCM." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/r38792.
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碩士國立虎尾科技大學
光電工程系光電與材料科技碩士班
105
In recent years, living and working in a health and safety environment has become an important issue. This thesis develops a mobile health care system with a GCM’s (Google Cloud Messaging) push notification function, which can detect the nearby environment information including ambient temperature and humidity, UV, and air quality. Besides, we also design a mobile APP for users easily to view the environment information. We use a microprocessor to handle the data that sending from a variety of sensors including temperature and humidity sensors, UV sensors, gas sensors and dust sensors, and then uploaded to the cloud space storage. Due to the two potential hazards of combustible gas and dust particles cannot be observed with the naked eye, so when the two values exceed the normal threshold, the system will warn people by starting the alarm. In addition to providing current environmental information, the APP on the smart-phone will use GCM to push the notification of danger to the user if current environment information exceeds safety standards. Moreover, we have added the ability to set the start-up conditions of pushing notification, which can be changed according to the needs of the user.
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Huang, Chao-Wen, and 黃照文. "Biped Robot Omni Planar Direction Push and Recovery System." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/28137786275027876653.
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碩士國立臺灣大學
電機工程學研究所
104
The biped and humanoid robots represent the state of the art technology in complex robot systems. Biped walking robots have high flexibilities to serve as service robots in comparison with the wheeled structure robots in human environments. However, one of the most important bottlenecks in the research field of the biped robots is the static balancing and dynamic balancing issues. Further applications cannot be successfully fulfilled without considering the balancing issues. In the hopes that the biped robots assist humans in everyday environments in the near future, it is inevitable for the biped robots to confront unexpected perturbations even though the environments are well structured. As a result, the push-recovery issue is a necessary research that must be investigated to interact safely with humans as well. The research objective of this thesis is to implement the push-recovery system to the walking pattern generation module for the biped walking robots to fulfill dynamic balancing walking. Furthermore, the push-recovery system is constructed based on the idea that the researches on biped and humanoid robots are mainly to implement the behaviors as far as we know about the human beings. In this research, we successfully implement the push-recovery system that mimics human motions to the walking pattern generator for balancing unexpected perturbations during walking process. The research consists of the theoretical derivations of biped robot system. Furthermore, practical possibilities and feasibilities of the push-recovery system are verified by push-recovery experiments on the biped robot developed in our NTU-iCeiRA laboratory. Hope that this research would contribute to the academic and practical applications in the field of biped robot push-recovery researches.
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pan, zhi-hong, and 潘誌宏. "Using action learning cloud service construction push notification system." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/37992775690997896284.
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碩士樹德科技大學
資訊工程系碩士班
102
With the Internet and the use and population growth in developed, making learning approach has no time and geographical constraints. In modern people to prepare for, that there have been significant changes in the way, and began development of a network teaching platform with interactive features. Cloud services environment advances in technology to make the network teaching environment is more advanced, also creates e-learning becomes a new kind of learning mode. This article is provided by Google company C2DM the clouds push (Push/Pull) service, developed a common push notification e-learning platform. hen go to more traditional teaching on the teaching platform differences. And after the previous experience of conclusion, learning the effectiveness and rapidity of the information if there are updated in real time, for users to significantly improve effectiveness, and to enhance the user''s reading and willingness to learn. So take this as the starting point of this thesis, developed a push notification e-learning platform, hoping to let the learner able to work the first time, to absorb new information.
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Wang, Kuo-Ren, and 王國任. "Comparison of Push System and Pull System in a Fashion Industry Supply Chain." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/18249502845309626620.
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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.
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MA, Chen Hsuan, and 馬震烜. "Numerical Simulations of Turbulent Diffusion in Push-pull Ventilation System." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/69759077270669722296.
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碩士國立臺灣科技大學
機械工程系
93
This study presents the numerical simulation on the push-pull ventilation system. The push-pull system is a device which is commonly used in capturing pollutants from large area tanks of industrial chemical processes. An air jet is blown (or pushed) from one side of a tank and collected (or pulled) by an exhaust hood on the opposite side. The function of the push flow is to cover the pollutants and bring them to the pull channel. In this study, the standard k-e turbulence model is employed to describe the flow structures and characteristics. Moreover, the turbulence mass transfer equation is adopted to show the concentration distribution above the open surface tank. We simulate the flow in tank of area by 1.0 m*1.0 m and 1.5 m*1.0 m, with the pollutant evaporation velocities varies at 0.03, 0.05, and 0.07 m/s. All the flow fields can be concluded in four dominant modes: dispersion, transition, encapsulation, and strong suction. The push and pull flow velocities should be adjusted into encapsulation and strong suction modes to ensure all the vapor can be captured by the exhaust hood. However, if the energy usage and costs are considered, the encapsulation mode is the suitable region to operate. According to the observations, the pollutants may still disperse to the surroundings under the strong suction mode. The other geometric parameters such as the flange size, push and pull channel size, offset distance, and etc., would also have effects upon the flow characteristics. In conclusion, for a variety of lengths of tanks and pollutant evaporation velocities, the push and pull flow velocity must be matched so that the optimal operation would be generated. Furthermore, the flange size and other parameters are determined to enhance the capture efficiency of the push-pull system. The recommendations for design guidelines are introduced in this study.
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Chen, Ya-wen, and 陳雅雯. "The Performance Analysis for Push and Pull System of CPFR." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/48014094221640143628.
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碩士國立成功大學
資訊管理研究所
97
Because of the rapid development of Information Technology, the scale of enterprise has been enlarging, and the business war has turned from the competition between companies to the competition of whole supply chain. Therefore, traditional supply chain model cannot fit the demand of modern business, which results in the integrated supply chain, whose main concept is CPFR. CPFR offers a way of collaborative operation, which allows the members of supply chains to share the information on customers needs and sales, and do market forecasting through the Internet. By planning, forecasting, and replenishment together, the members of supply chains can build the system of collaboration and solve possible problems. We focus on the effect of three-echelon supply chain on whole supply chain performance after applying the concepts of CPFR to the system by the angle of push and pull system instead of the analysis of the application of CPFR to the push system. As a result, we will use the simulation analysis to analyze the effect on supply chain on different collaborative strategies in different contexts , with performance measurement indicators. It can be considered to be a database for different industries when they apply the concepts of CPFR to their management.