To see the other types of publications on this topic, follow the link: Delivery date.
Dissertations / Theses on the topic 'Delivery date'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'Delivery date.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
1
Chan, Hing-kai. "Impacts of flexibility in delivery quantity and due date on supply chain dynamics." Click to view the E-thesis via HKUTO, 2006. http://sunzi.lib.hku.hk/hkuto/record/B3857651X.
Full text
2
Chan, Hing-kai, and 陳慶佳. "Impacts of flexibility in delivery quantity and due date on supply chain dynamics." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B3857651X.
Full text
3
Vickers, Robert Jennings. "Required Delivery Date (RDD), an alternative to Procurement Adminisistrative [i.e. Administrative] Lead Time (PALT)?" Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1993. http://handle.dtic.mil/100.2/ADA277357.
Full textAbstract:
Thesis (M.S. in Management) Naval Postgraduate School, December 1993.Thesis advisor(s): David V. Lamm ; Rebecca J. Adams. :December 1993." Cover title: Required delivery date, an ... administrative lead time? Bibliography: p. 107-108. Also available online.
4
Kubela, Daniel. "Návrh procesního řízení zakázky v podniku služeb." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2019. http://www.nusl.cz/ntk/nusl-400119.
Full textAbstract:
This diploma thesis focuses on the process management of order in the company Vario Therm. This thesis summarizes the basic theoretical background, on which the analysis of the current state of process with the order is carried out. This analysis is followed by a proposal for a new process management system.
5
Remeš, Filip. "Aplikace fuzzy logiky při výběrů dodavatele." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-232751.
Full textAbstract:
The diploma thesis employs modern analysing and simulating methods. It enables the application of fuzzy logic in supplier selection and evaluation of its potential risks to construction companies. This work is aimed at defining the problem and determining the overall and particular goals, namely theoretical description of the principle of used artificial intelligence theory, problem description and analysis, current situation as-sessment, proposed solution implementation and evaluation of proposed solution con-tribution.
6
Lesaoana, 'Maseka A. "Scheduling with fixed delivery dates." Thesis, University of Southampton, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358925.
Full text
7
Björkstad, Per-Erik. "Reliable Data Delivery over Wireless Sensor Networks." Thesis, KTH, Reglerteknik, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-106245.
Full textAbstract:
In this thesis we present ReDaR, a software and hardware environment for reliable data retrieval from multiple remotely located wireless sensor networks (WSNs). The software is programmed in Java and NesC over TinyOS, and allows for direct interaction with individual sensors using a graphical user interface running on a remote client. The hardware platform includes a WSN deployed with Telos wireless sensors. ReDaR implements a control algorithm over a real WSN, which allows to keep under control the overhead communication bandwidth between the sensors and the remote client. Specifically, we implement a control algorithm based on the extremum seeking control theory, which enables an adaptive forward error correction mechanism to ensure reliable real-time data retrieval. The amount of redundancy is controlled via a switching controller that uses a feedforward and a feedback mechanism. The switching controller ensures an optimal trade-off between maximizing the bandwidth and maximizing the quality of service. Experiments performed in our environment confirm theoretical results about performance of the controller, i.e. the feedback mechanism provides a robust controller that finds the optimum without model reliance, while the feed forward one improves the transient behavior.
8
Lou, Wenjing. "Spread secure protocol for reliable data delivery /." [Gainesville, Fla.] : University of Florida, 2003. http://purl.fcla.edu/fcla/etd/UFE0001283.
Full text
9
Sastry, Nishanth Ramakrishna. "Social network support for data delivery infrastructures." Thesis, University of Cambridge, 2011. https://www.repository.cam.ac.uk/handle/1810/240631.
Full textAbstract:
Network infrastructures often need to stage content so that it is accessible to consumers. The standard solution, deploying the content on a centralised server, can be inadequate in several situations. Our thesis is that information encoded in social networks can be used to tailor content staging decisions to the user base and thereby build better data delivery infrastructures. This claim is supported by two case studies, which apply social information in challenging situations where traditional content staging is infeasible. Our approach works by examining empirical traces to identify relevant social properties, and then exploits them. The first study looks at cost-effectively serving the ``Long Tail'' of rich-media user-generated content, which need to be staged close to viewers to control latency and jitter. Our traces show that a preference for the unpopular tail items often spreads virally and is localised to some part of the social network. Exploiting this, we propose Buzztraq, which decreases replication costs by selectively copying items to locations favoured by viral spread. We also design SpinThrift, which separates popular and unpopular content based on the relative proportion of viral accesses, and opportunistically spins down disks containing unpopular content, thereby saving energy. The second study examines whether human face-to-face contacts can efficiently create paths over time between arbitrary users. Here, content is staged by spreading it through intermediate users until the destination is reached. Flooding every node minimises delivery times but is not scalable. We show that the human contact network is resilient to individual path failures, and for unicast paths, can efficiently approximate flooding in delivery time distribution simply by randomly sampling a handful of paths found by it. Multicast by contained flooding within a community is also efficient. However, connectivity relies on rare contacts and frequent contacts are often not useful for data delivery. Also, periods of similar duration could achieve different levels of connectivity; we devise a test to identify good periods. We finish by discussing how these properties influence routing algorithms.
10
Cai, Hua. "Scalable visual contents delivery over heterogeneous networks /." View abstract or full-text, 2003. http://library.ust.hk/cgi/db/thesis.pl?ELEC%202003%20CAI.
Full text
11
Reinwald, Carl. "Augmenting Serial Streaming Telemetry with iNET Data Delivery." International Foundation for Telemetering, 2009. http://hdl.handle.net/10150/605967.
Full textAbstract:
ITC/USA 2009 Conference Proceedings / The Forty-Fifth Annual International Telemetering Conference and Technical Exhibition / October 26-29, 2009 / Riviera Hotel & Convention Center, Las Vegas, NevadaIncorporating network-based telemetry components into a flight test article creates new types of network-based data flows between a test article and a telemetry ground station. The emerging integrated Network Enhanced Telemetry (iNET) Standard defines new, network-based data delivery protocols which can produce various network data flows. Augmenting existing Serial Streaming Telemetry (SST) data flows with these network-based data flows is crucial to enhancing current flight test capabilities. This paper briefly introduces the network protocols referenced in the iNET Standard and then identifies the various data flows generated by network-based components which comply with the iNET Standard. Several combinations of SST and TmNS data flows are presented and the enhanced telemetry capabilities provided by each combination are identified. Identifying time intervals of unused telemetry network bandwidth explicitly for reallocation to other test articles is also addressed.
12
Mayo-Bruinsma, Liesha. "Family-centered Care Delivery: Comparing Models of Primary Care Service Delivery in Ontario." Thèse, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/19952.
Full textAbstract:
Family-centered care (FCC) focuses on considering the family in planning/implementing care and is associated with increased patient satisfaction. Little is known about factors that influence FCC. Using linear mixed modeling and Generalized Estimating Equations to analyze data from a cross-sectional survey of primary care practices in Ontario, this study sought to determine whether models of primary care service delivery differ in their provision of FCC and to identify characteristics of primary care practices associated with FCC.
Patient-reported scores of FCC were high, but did not differ significantly among primary care models. After accounting for patient characteristics, practice characteristics were not significantly associated with patient-reported FCC. Provider-reported scores of FCC were significantly higher in Community Health Centres than in Family Health Networks. Higher numbers of nurse practitioners and clinical services on site were associated with higher FCC scores but scores decreased as the number of family physicians at a site increased.
13
Tang, Xueyan. "Management and delivery of web contents /." View Abstract or Full-Text, 2003. http://library.ust.hk/cgi/db/thesis.pl?COMP%202003%20TANG.
Full textAbstract:
Thesis (Ph. D.)--Hong Kong University of Science and Technology, 2003.Includes bibliographical references (leaves 170-181). Also available in electronic version. Access restricted to campus users.
14
Handel, Peter. "Multimedia delivery in a wireless environment." [Gainesville, Fla.] : University of Florida, 2002. http://purl.fcla.edu/fcla/etd/UFE0000542.
Full text
15
Bright, Laura. "Improving data delivery in wide area and mobile environments." College Park, Md. : University of Maryland, 2003. http://hdl.handle.net/1903/306.
Full textAbstract:
Thesis (Ph. D.) -- University of Maryland, College Park, 2003.Thesis research directed by: Computer Science. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
16
Oh, Junghwan. "Efficient techniques for management and delivery of video data." Doctoral diss., University of Central Florida, 2000. http://digital.library.ucf.edu/cdm/ref/collection/RTD/id/2745.
Full textAbstract:
University of Central Florida College of Engineering ThesisThe rapid advances in electronic imaging, storage, data compression telecommunications, and networking technology have resulted in a vast creation and use of digital videos in many important applications such as digital libraries, distance learning, public information systems, electronic commerce, movie on demand, etc. This brings about the need for management as well as delivery of video data. Organizing and managing video data, however, is much more complex than managing conventional text data due to their semantically rich and unstructured contents. Also, the enormous size of video files requires high communication bandwidth for data delivery. In this dissertation, I present the following techniques for video data management and delivery. Decomposing video into meaningful pieces (i.e., shots) is a very fundamental step to handling the complicated contents of video data. Content-based video parsing techniques are presented and analyzed. In order to reduce the computation cost substantially, a non-sequential approach to shot boundary detection is investigated. Efficient browsing and indexing of video data are essential for video data management. Non-linear browsing and cost-effective indexing schemes for video data based on their contents are described and evaluated. In order to satisfy various user requests, delivering long videos through the limited capacity of bandwidth is challenging work. To reduce the demand on this bandwidth, a hybrid of two effective approaches, periodic broadcast and scheduled multicast, is discussed and simulated. The current techniques related to the above works are discussed thoroughly to explain their advantages and disadvantages, and to make the new improved schemes. The substantial amount of experiments and simulations as well as the concepts are provided to compare the introduced techniques with the other existing ones. The results indicate that they outperform recent techniques by a significant margin. I conclude the dissertation with a discussing of future research directions.
Ph.D.
Doctorate;
School of Electrical Engineering and Computer Science
Engineering and Computer Science
Electrical Engineering and Computer Science
117 p.
xiii, 117 leaves, bound : ill. ; 28 cm.
17
Amiot, David Engel. "Improving parts delivery through data aggregation, analysis, and consumption." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/117931.
Full textAbstract:
Thesis: M.B.A., Massachusetts Institute of Technology, Sloan School of Management, in conjunction with the Leaders for Global Operations Program at MIT, 2018.Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, in conjunction with the Leaders for Global Operations Program at MIT, 2018.
Cataloged from PDF version of thesis.
Includes bibliographical references (page 141).
Data analytics and visualization are topics of significant interest in the business and manufacturing communities. This research investigates the hypothesis that, if production floor managers consume properly analyzed data, then their ability to solve problems and prevent production system disruptions improves. This research tests this hypothesis through simulation and a pilot program on Boeing's closet fabrication line and identifies the types of data managers require to improve their operations. The closet fabrication line struggles to complete orders on time, and this problem serves as the central focus for this research. A root cause analysis indicates that issues delivering parts to the closet fabrication line contribute to this problem. Given this issue, this research applies data analysis and visualization tools to facilitate the process improvements required to solve the parts delivery problem. This analysis supports the validity of the initial hypothesis. The results of the discrete event simulation predict an 11% decrease in the time required to fabricate a closet and a 50% decrease in the number of days late the production line delivers closets. The pilot program yields an 11% reduction in build duration and a 32.5% decrease in the duration of the average late completion, while increasing the percentage of complete kits delivered from 39.4% to 80.0%. While the pilot program encompasses a small data set of ten closets, it provides an initial validation of the hypothesis. These results also indicate that information regarding warehouse inventory status, the production queue, and the priority of orders in the queue are valuable data that managers require to improve manufacturing performance.
by David Engel Amiot.
M.B.A.
S.M.
18
Payberah, Amir. "Distributed Optimization of P2P Media Delivery Overlays." Licentiate thesis, SICS, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-23989.
Full textAbstract:
Media streaming over the Internet is becoming increasingly popular. Currently, most media is delivered using global content-delivery networks, providing a scalable and robust client-server model. However, content delivery infrastructures are expensive. One approach to reduce the cost of media delivery is to use peer-to-peer (P2P) overlay networks, where nodes share responsibility for delivering the media to one another. The main challenges in P2P media streaming using overlay networks include: (i) nodes should receive the stream with respect to certain timing constraints, (ii) the overlay should adapt to the changes in the network, e.g., varying bandwidth capacity and join/failure of nodes, (iii) nodes should be intentivized to contribute and share their resources, and (iv) nodes should be able to establish connectivity to the other nodes behind NATs. In this work, we meet these requirements by presenting P2P solutions for live media streaming, as well as proposing a distributed NAT traversal solution. First of all, we introduce a distributed market model to construct an approximately minimal height multiple-tree streaming overlay for content delivery, in gradienTv. In this system, we assume all the nodes are cooperative and execute the protocol. However, in reality, there may exist some opportunistic nodes, free-riders, that take advantage of the system, without contributing to content distribution. To overcome this problem, we extend our market model in Sepidar to be effective in deterring free-riders. However, gradienTv and Sepidar are tree-based solutions, which are fragile in high churn and failure scenarios. We present a solution to this problem in GLive that provides a more robust overlay by replacing the tree structure with a mesh. We show in simulation, that the mesh-based overlay outperforms the multiple-tree overlay. Moreover, we compare the performance of all our systems with the state-of-the-art NewCoolstreaming, and observe that they provide better playback continuity and lower playback latency than that of NewCoolstreaming under a variety of experimental scenarios. Although our distributed market model can be run against a random sample of nodes, we improve its convergence time by executing it against a sample of nodes taken from the Gradient overlay. The Gradient overlay organizes nodes in a topology using a local utility value at each node, such that nodes are ordered in descending utility values away from a core of the highest utility nodes. The evaluations show that the streaming overlays converge faster when our market model works on top of the Gradient overlay. We use a gossip-based peer sampling service in our streaming systems to provide each node with a small list of live nodes. However, in the Internet, where a high percentage of nodes are behind NATs, existing gossiping protocols break down. To solve this problem, we present Gozar, a NAT-friendly gossip-based peer sampling service that: (i) provides uniform random samples in the presence of NATs, and (ii) enables direct connectivity to sampled nodes using a fully distributed NAT traversal service. We compare Gozar with the state-of-the-art NAT-friendly gossip-based peer sampling service, Nylon, and show that only Gozar supports one-hop NAT traversal, and its overhead is roughly half of Nylon’s.REST
19
Lujková, Lenka. "Aplikace fuzzy logiky při hodnocení dodavatelů firmy." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2009. http://www.nusl.cz/ntk/nusl-222046.
Full textAbstract:
This thesis engages in subject matter application of fuzzy logic for rating of suppliers of the firm. This thesis analyses and evaluates competing firms offering to windows exchange and roofing exchange. This thesis can help municipal office in Vážany by decision making, which firm choose.
20
Humber, Gregory. "Quality of Information Aware Data Delivery in Wireless Sensor Networks." Thesis, Uppsala University, Department of Information Technology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-108032.
Full textAbstract:
Efficient energy use is paramount if sensor networks are to function for long periods.Already, researchers have delivered many efficiency schemes with various levels ofsuccesses; however, there is still need for improvements. This thesis is an attempt tomake further improvements on energy efficiency within wireless sensor networks.
Radio, sensing and light emitting diodes have dominated the power consumption oncurrent sensor network architectures. The radio consumes nearly as much energywhile it is listening as it does while transmitting. Naturally, if we reduce listening timesor if we reduce the number of messages transmitted then we would have reduced theenergy consumption. Some early successes in this area include power saving mediaaccess control protocols such as X-MAC that reduces the radio listening times bycycling through sleep and wake states and adaptive sampling techniques that havehelped to reduce the sensing and transmission numbers. This work is similar to theadaptive sampling techniques in that it focuses on saving energy by reducing thetransmission numbers.
This thesis tackles the problem of energy efficiency from a Quality of Information(QoI) perspective. Data is delivered with the quality of information at the forefront ofdelivery decisions, thus, samples are taken at a rate so that important events are notmissed, then a decision is taken whether to transmit the packet or not. Further tothis, we implement a routing protocol that is information aware, allowing it to providea better quality of service to important packets. Our goal is to lower the number ofmessages without degrading the quality of information.
This work is an improvement over static sampling methods because important eventscan be missed if the sampling rate is too low. We investigate our approach byimplementing a QoI aware routing algorithm based on the SPEED protocol and doevaluations using simulations and on a sensor network testbed with data from realdeployments.
Our results show that it is possible to reduce the number of messages transmittedand to reconstruct the missing data at the Sink with high fidelity. We were able toachieve in some instances up to 75% message reduction in our temperaturemeasuring application with 94% of all errors falling below 0.5 degrees Celsius.
21
Wu, Wenbin. "Delay-tolerant data delivery in a distributed sensor network testbed." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-174071.
Full textAbstract:
Sensei-UU testbed is an inexpensive, expandable, relocatable testbed, which is designed by CoRe group in Uppsala University. It provides wireless sensor network (WSN) experiments with repeatable mobility. However, end nodes are always deployed in extreme environments where connectivity is not able to be guaranteed and Sensei-UU testbed lacks the ability to deal with this case. Reliable data delivery, therefore, is an important feature of delay tolerant network and it will extend the usage of Sensei-UU testbed. This thesis work investigates Sensei-UU testbed and improves it to support delay-tolerant data delivery. The thesis report starts with an introduction of related background concepts regarding wireless sensor network, Sensei-UU testbed and delay tolerant network. Then a detailed technical solution of delivering delay-tolerant data in Sensei-UU testbed is presented in terms of system analysis, design and implementation.
22
Almasaeid, Hisham M. "Data delivery in fragmented wireless sensor networks using mobile agents." [Ames, Iowa : Iowa State University], 2007.
Find full text
23
Hull, Bret Warren 1980. "Opportunistic sensing and mobile data delivery in the CarTel System." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/58277.
Full textAbstract:
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 94-102).
Wide-area sensor systems enable a broad class of applications, including the fine-grained monitoring of traffic congestion, road surface conditions, and pollution. This dissertation shows that it is possible to build a low-cost, wide-area sensor system. Our approach relies on two techniques: using existing motion from such sources of mobility as cars and people to provide coverage (opportunistic mobility), and using the abundance of short duration network connections to provide low-cost data delivery (opportunistic networking). We use these two techniques to build a mobile sensor computing system called CarTel, to collect, process, deliver, and visualize spatially diverse data. CarTel consists of three key components: hardware placed in users' cars to provide remote sensing, a communication stack called CafNet to take advantage of opportunistic networking, and a web-based portal for data visualization. This dissertation describes the design and implementation of these three components. In addition, we analyze the properties of opportunistic networking and mobility. To show the viability of opportunistic networking, we studied Internet access from moving vehicles and found that the median duration of link layer connectivity at vehicular speeds was 13 seconds, that the median connection upload bandwidth was 30 KBytes/s, and that the mean duration between successful associations to APs was 75 seconds. To show the viability of opportunistic mobility, we used a simulation and found that after as little as 100 drive hours, a CarTel deployment could achieve over 80 percent coverage of useful roads for a traffic congestion monitoring application.
by Bret W. Hull.
Ph.D.
24
Srivastava, Rajiv K. "Optimal part delivery dates in small lot stochastic assembly systems." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54433.
Full textAbstract:
An important issue in the design and operation of assembly systems is the coordination of part deliveries and processing operations. These decisions can have a significant impact on inventory cost and customer service. The problem is especially complex when actual delivery and processing times are stochastic in nature, as is the case in small lot manufacturing.
In this research a new methodology is developed for determining optimal part delivery dates in stochastic small lot assembly systems. This methodology is based on the descriptive model that comprises of taking the maximum of several random variables. The part arrival and processing times are assumed to follow various known probability distributions. The model includes consideration of limited buffers between stations. The overall objective is to minimize the expected total of part and subassembly inventory cost, makespan cost and tardiness cost.
An approach based on the optimization of individual stations in isolation is used to obtain the part delivery dates at each station. Comparison of the approach with the nonlinear programming based approach to the problem indicates that it generates almost as good solutions in a fraction of the computation time. This approach is then used to study system behavior under various operating conditions. Results indicate that the Iognormal and gamma distributions result in higher total costs than the normal distribution. However, the normal distribution can be used to determine part delivery dates even if the actual distribution is Iognormal or gamma, with relatively small errors compared to the solutions obtained using the correct distribution. Variability is the most important factor in the design of the system, and affects the determination of due dates, buffer capacity requirements, choice of distribution, and estimates of system performance. The role of buffer capacities, however, is not very critical in the design of small lot unbalanced lines.Ph. D.
25
Bea, Anders, and Aydin Heydari. "Simple message delivery system : The development process of a simple message delivery add-on to be used in a work environment." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-188173.
Full textAbstract:
A major problem in resource-constrained areas is the high mortality rate among children. Child birth registrations in these areas are non-existent or done using an outdated system, this makes it hard for doctors and nurses working in such areas to get an overview of the health status of children. The lack of information about the health status of children in resource-constrained areas leads to many children not receiving the vaccinations and vitamins needed in order to survive. Using technology designed to assist the doctors and the nurses gives them the tools to be able to receive the information needed in order to take the necessary steps to prevent high child mortality rate. To improve the health care in a resource–constrained area like Uganda, the non-profit organization Shifo has developed software called "MyChild", were the nurses in Uganda can register the health status of the children in a database. The software helps the doctors and the nurses keep track of the treatment status of the children and thereby enable them to administer the correct vaccines and vitamins, thereby increasing the children’s survival rate. This report describes how an add-on was created for the MyChild system. The add-on was developed as a stand–alone application and was primarily designed to be used as a simple message delivery system. Enabling the functionality to deliver work related information from the administration or software related updates from the developers to the nurses, through the MyChild system. The add-on was developed by using selective parts of the project development method, Scrum, which was adapted for the use of a smaller group consisting of two developers. With Sprint, tasks and continuous updates through meetings, the project allowed for active change in the goal outline. Using a semi structured interview method, feedback about the add-on was received and the answers from the interviews could then be analyzed, thereby inspiring further advance of the add-on. The result from the presented work is a first version prototype that can send messages from a database to be shown in a rectangular window along with a corresponding picture. The prototype is a stand–alone application that can be modified to show the messages with different corresponding pictures and during different time durations. The main functionality of the first version prototype fulfills the requirements set by the customer, Shifo, but its implementation into the Shifo system is not presented in this thesis. The study through interviews presented in this thesis show that the message delivery add-on could be a useful addition, not only in health care, but also in other professions. Its functionality gives the possibility for users to receive work related information without it being a distraction or a hindrance in their daily work.Ett stort problem i resursbegränsade områden är de höga dödsiffrorna bland barn. Registreringar av nyfödda i dessa områden är obefintliga eller gjorda med uråldrade och omoderna metoder. Det gör det svårt för läkare och sjuksköterskor att få en korrekt helhetsbild av hälsotillståndet bland barn i området som i sin tur leder många barn inte får de vaccin eller vitaminer som de behöver för att kunna överleva. För att hjälpa läkare och sjuksköterskor förhindra dödsantalet bland barn i resursbegränsade områden skapas verktyg med hjälp av teknologin. Den ideella organisationen Shifo har därför utvecklat en mjukvara som ska förbättra hälsovården i resursbegränsade länder som Uganda. Mjukvaran heter MyChild och genom den ska sjuksköterskor i Uganda i en databas kunna registrera nyfödda barn samt ta del av barnens hälsoinformation. Genom mjukvaran kommer sjukköterskorna ha möjligheten att se hälsotillståndet för varje barn och på så sätt kunna ge dem de vaccinationer och vitaminer som de behöver för att kunna överleva. Denna rapport beskriver tillvägagångssätt för att utveckla ett tillägg för Shifos programvara MyChild. Tillägget har blivit utvecklat som en självständig programvara och kommer i första hand att användas som ett enkelt meddelande system. Applikationstilläggets främsta funktion är att via MyChild mjukvaran kunna skicka arbetsrelaterad information från administratörer till sjuksköterskorna. Applikationstilläget utvecklades genom att använda selektiva delar av arbetsmetoden för mjukvaruprojekt, Scrum, som blivit anpassade för användningen i en mindre grupp på två medlemmar. Med hjälp av "sprints", "tasks" och kontinuerliga informations uppdateringar genom möten lät sig projektets mål aktivt formas utefter arbetets gång. För att bilda sig en uppfattning om användarnas åsikter om applikationstillägget och hur den kunde förbättras, gjordes analyser från svaren av semi strukturerade intervjuer. Resultaten i denna uppsats presenterar en första version av en prototyp som via en databas skickar meddelanden som visas i ett rektangulärt fönster tillsammans med en tillhörande bild. Prototypen är en självständig mjukvara som kan ändras till att visa olika bilder beroende på vilket meddelande som visas samt under olika tidsperioder. Huvudfunktionaliteten för prototypen når upp till de krav som Shifo har ställt men implementation i MyChild mjukvaran har inte presenterats i uppsatsen. Arbetet som presenteras i den här uppsatsen visar att meddelandetillägget kan vara ett användbart tillägg i även andra branscher än endast inom hälsovård. Funktionaliteten för applikationstillägget ger användarna möjligheten att ta emot arbetsrelaterad information utan att störas eller bli hindrade i det dagliga arbetet.
26
Mgudlwa, Sibulela. "A big data analytics framework to improve healthcare service delivery in South Africa." Thesis, Cape Peninsula University of Technology, 2018. http://hdl.handle.net/20.500.11838/2877.
Full textAbstract:
Thesis (MTech (Information Technology))--Cape Peninsula University of Technology, 2018.Healthcare facilities in South Africa accumulate big data, daily. However, this data is not being utilised to its full potential. The healthcare sector still uses traditional methods to store, process, and analyse data. Currently, there are no big data analytics tools being used in the South African healthcare environment. This study was conducted to establish what factors hinder the effective use of big data in the South African healthcare environment. To fulfil the objectives of this research, qualitative methods were followed. Using the case study method, two healthcare organisations were selected as cases. This enabled the researcher to find similarities between the cases which drove them towards generalisation. The data collected in this study was analysed using the Actor-Network Theory (ANT). Through the application of ANT, the researcher was able to uncover the influencing factors behind big data analytics in the healthcare environment. ANT was essential to the study as it brought out the different interactions that take place between human and non-human actors, resulting in big data. From the analysis, findings were drawn and interpreted. The interpretation of findings led to the developed framework in Figure 5.5. This framework was developed to guide the healthcare sector of South Africa towards the selection of appropriate big data analytics tools. The contribution of this study is in twofold; namely, theoretically and practically. Theoretically, the developed framework will act as a useful guide towards the selection of big data analytics tools. Practically, this guide can be used by South African healthcare practitioners to gain better understanding of big data analytics and how they can be used to improve healthcare service delivery.
27
Park, Seung-Jong. "Energy-Aware Topology Control and Data Delivery in Wireless Sensor Networks." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5065.
Full textAbstract:
The objective of this thesis is to address the problem of energy conservation in wireless sensor networks by tackling two fundamental problems: topology control and data delivery.
We first address energy-aware topology control taking into account throughput per unit energy as the primary metric of interest. Through both experimental observations and analysis, we show that the optimal topology is a function of traffic load in the network. We then propose a new topology control scheme, Adaptive Topology Control (ATC), which increases throughput per unit energy. Based on different coordinations among nodes, we proposed three ATC schemes: ATC-CP, ATC-IP, and ATC-MS. Through simulations, we show that three ATC schemes outperform static topology control schemes, and particularly the ATC-MS has the best performance under all environments.
Secondly, we explore an energy-aware data delivery problem consisting of two sub-problems: downstream (from a sink to sensors) and upstream (from sensors to a sink) data delivery. Although we address the problems as two independent ones, we eventually solve those problems with two approaches: GARUDA-DN and GARUDA-UP which share a common structure, the minimum dominating set.
For the downstream data delivery, we consider reliability as well as energy conservation since unreliable data delivery can increase energy consumption under high data loss rates. To reduce energy consumption and achieve robustness, we propose GARUDA-DN which is scalable to the network size, message characteristics, loss rate and the reliable delivery semantics. From ns2-based simulations, we show that GARUDA-DN performs significantly better than the basic schemes proposed thus far in terms of latency and energy consumption.
For the upstream data delivery, we address an energy efficient aggregation scheme to gather correlated data with theoretical solutions: the shortest path tree (SPT), the minimum spanning tree (MST) and the Steiner minimum tree (SMT). To approximate the optimal solution in case of perfect correlation among data, we propose GARUDA-UP which combines the minimum dominating set (MDS) with SPT in order to aggregate correlated data. From discrete event simulations, we show that GARUDA-UP outperforms the SPT and closely approximates the centralized optimal solution, SMT, with less amount of overhead and in a decentralized fashion.
28
Graham, David James. "Investigation of methods for data communication and power delivery through metals." Thesis, University of Newcastle Upon Tyne, 2012. http://hdl.handle.net/10443/1414.
Full textAbstract:
The retrieval of data from a sensor, enclosed by a metallic structure, such as a naval vessel, pipeline or nuclear flask is often very challenging. To maintain structural integrity it is not desirable to penetrate the wall of the structure, preventing any hard-wired solution. Furthermore, the conductive nature of the structure prevents the use of radio communications. Applications involving sealed containers also have a requirement for power delivery, as the periodic changing of batteries is not possible. Ultrasound has previously been identified as an attractive approach but there are two key challenges: efficient/reliable ultrasonic transduction and a method of overcoming the inherent multipath distortion resulting from boundary reflections. Previous studies have utilised piezoelectric contact transducers, however, they are impractical due to their reliance on coupling, i.e. the bond between the transducer and the metal surface, which leads to concerns over long term reliability. A non-contact transducer overcomes this key drawback, thus highlighting the electromagnetic acoustic transducer (EMAT) as a favourable alternative. This thesis presents the design and testing of an EMAT with appropriate characteristics for through-metal data communications. A low cost, low power data transmission scheme is presented for overcoming acoustic multipath based on pulse position modulation (PPM). Due to the necessary guard time, the data rate is limited to 50kbps. A second solution is presented employing continuous wave, Quadrature phase shift keying (QPSK) modulation, allowing data rates in excess of 1Mbps to be achieved. Equalisation is required to avoid intersymbol interference (ISI) and a decision feedback equaliser (DFE) is shown to be adept at mitigating this effect. The relatively low efficiency of an EMAT makes it unsuitable for power delivery, consequently, an alternative non-contact approach, utilising inductive coupling, is explored. Power transfer efficiency of ≈ 4% is shown to be achievable through 20mm thick stainless steel.
29
Datz, Stefan [Verfasser], and Thomas [Akademischer Betreuer] Bein. "Multifunctional mesoporous nanoparticles for drug delivery / Stefan Datz ; Betreuer: Thomas Bein." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2017. http://d-nb.info/1189067102/34.
Full text
30
Pantoleon, Periklis K. "Reliable content delivery using persistent data sessions in a highly mobile environment." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Mar%5FPantoleon.pdf.
Full text
31
Stout, Blaine David PhD. "Big and Small Data for Value Creation and Delivery: Case for Manufacturing Firms." University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1544545573351722.
Full text
32
Gossage, Steven A. "Delivery of Very High Bandwidth with ATM Switches and SONET." International Foundation for Telemetering, 1993. http://hdl.handle.net/10150/608861.
Full textAbstract:
International Telemetering Conference Proceedings / October 25-28, 1993 / Riviera Hotel and Convention Center, Las Vegas, NevadaTo deliver high bandwidth, a ubiquitous inter-/intra-building cable plant consisting of single mode and multimode fiber as well as twisted pair copper is required. The selection of the "glue" to transport and interconnect distributed LANs with central facility resources over a pervasive cable plant is the focus of this paper. A description of the traditional problems that must be overcome to provide very high bandwidth beyond the narrow confines of a computer center is given. The applicability of Asynchronous Transfer Mode (ATM) switching (interconnection) and Synchronous Optical NETwork (SONET) (transport) for high bandwidth delivery is described using the environment and requirements of Sandia National Laboratories. Other methods for distributing high data rates are compared and contrasted. Sandia is implementing a standards based foundation utilizing a pervasive single mode fiber cable plant, SONET transport, and ATM switching to meet the goals of gigabit networking.
33
S, Kumar Niroop. "Service delivery costan alysis of IoT platforms." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259742.
Full textAbstract:
Internet of things (IoT) which was once a vision is now reality in many sectors. Platform in the IoT ecosystem plays an important role in service provisioning journey by creating business value for the actors and enabling data management for the user. Service provisioning on IoT platform are application centric and is more focused on vertical development. Amalgamation of services, applications in IoT platform is the key in bringing data and society together. Interoperability and scalability is posing as hindrance for this hypothesis. On high level, identifying the cost drivers in these IoT platforms can be key for an actor to bring this hypothesis to reality. This work is one such attempt in providing cost breakdown and identifying cost drivers in IoT platform. A generic framework is proposed which dimensions the platform hardware and software to apprehend the design, development and operation cost of services considered. The framework is designed to proffer three deployment cloud strategies, On-premises, Infrastructure as a Service (IaaS) and Platform as a Service (PaaS). Three business use cases are tested on this framework to arrive at the cost structure, which in turn states the cost drivers. The results suggest storage, hardware replacement and software development are major chunk of cost in the structure driven by devices/sensors in the platform and message transmission rate from those devices. Additionally, a suggestion of deployment strategies are made on each use cases to avail cost efficient services.Internet of Things (IoT) som en gång var en vision är nu verklighet i många sektorer. Plattformen i IoT-ekosystemet spelar en viktig roll i researrangemanget genom att skapa affärsvärde för aktörerna och möjliggöra datahantering för användaren. Tjänsteleverantörer på IoT-plattformen är applikationscentriska och är mer fokuserade på vertikal utveckling. Sammanslagning av tjänster, applikationer i IoT-plattformen är nyckeln till att föra data och samhället samman. Interoperabilitet och skalbarhet utgör hinder för denna hypotes. På hög nivå kan identifiering av kostnadsdrivarna i dessa IoT-plattformar vara nyckeln för en aktör för att få denna hypotes till verklighet. Detta arbete är ett sådant försök att tillhandahålla kostnadsfördelning och identifiera kostnadsdrivare i IoT-plattformen. Ett generiskt ramverk föreslås som dimensionerar plattformshårdvaran och programvaran för att fånga konstruktions-, utvecklingsoch driftkostnaderna för betraktade tjänster. Ramverket är utformat för att erbjuda tre implementeringsmolnstrategier, lokala, infrastruktur som en tjänst (IaaS) och plattform som en tjänst (PaaS). Tre fall för affärsanvändning testas enligt denna ram för att komma fram till kostnadsstrukturen, vilket i sin tur anger kostnadsdrivarna. Resultaten tyder på att lagring, hårdvarutbyte och mjukvaruutveckling är en stor del av kostnaden i strukturen som drivs av enheter / sensorer i plattformen och överföringshastighet för meddelanden från dessa enheter. Dessutom görs ett förslag om distributionsstrategier för varje användningsfall för att utnyttja kostnadseffektiva tjänster.
34
Swenson, Kim Christian. "Exploiting network processors for low latency, high throughput, rate-based sensor update delivery." Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Thesis/Fall2009/k_swenson_121109.pdf.
Full textAbstract:
Thesis (M.S. in computer science)--Washington State University, December 2009.Title from PDF title page (viewed on Feb. 9, 2010). "School of Electrical Engineering and Computer Science." Includes bibliographical references (p. 92-94).
35
Chan, Fanny. "Designing dashboards – visualizing software metrics for Continuous Delivery." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254334.
Full textAbstract:
Feedback is an essential part of the software delivery process. Software metrics, as feedback, can give knowledge about the essential parameters that affect the software development process. An improved understanding of the software development process can facilitate more effective software management. With new software development methodologies emerging, such as Continuous Delivery, new information needs arise. The new methodology requires a new way of thinking when designing and developing dashboards for software development. A dashboard is a communication tool that can provide up-to-date information through at a glance interaction. The purpose of this thesis was to investigate how different software metrics related to Continuous Delivery can be visualized in a dashboard system at the company Saab. This thesis used a user-centered approach to find the appropriate visualization and user context to provide the user with feedback that supports the software development. The thesis work included user observations in the form of interviews and contextual inquiry. Thereafter, prototyping and usability testing were conducted in two iterations to design the dashboard and gather feedback. The result of this thesis work was a final prototype that was implemented in the program Kibana using real-time data from a software project. This thesis presents a set of elements that should be included when designing a dashboard for software development based on the findings of this study.Feedback är en av de essentiella byggstenarna i en mjukvaruleveransprocess. Med mätvärden för mjukvaruutveckling kan organisationen få en större kunskap om de väsentliga faktorerna som påverkar mjukvaruutvecklingen. En ökad förståelse kan leda till en mer effektiv hantering av mjukvaruutveckling. Med nya metoder inom mjukvaruutveckling, t.ex. Continuous Delivery, som betyder kontinuerlig leverans, förändras behovet av feedback och nya utmaningar uppstår. Den nya metoden kräver nya uppläggningar vid utformning och utveckling av informationsradiatorer, en typ av kontrollpanel för mjukvaruutveckling. En kontrollpanel är ett kommunikationsverktyg som kan bidra med aktuell information om situationen genom att ge en överblicksbild. Målet med denna uppsats var att utreda hur mätvärden för mjukvaruutveckling kopplade till Continuous Delivery kan visualiseras på en kontrollpanel på företaget Saab. Detta examensarbete använde en användarcentrerad metod för att undersöka de vilka visualiseringar var lämpliga att använda och i vilken kontextanvändarna ville ha feedback. Examensarbetet utförde användarobservationer i form av intervjuer och kontextuell utredning. Sedan gjordes prototyper och användbarhetstestning. Detta gjordes i två iterationer för att samla in feedback och designa den slutgiltiga prototypen. Den prototypen utvecklades i programmet Kibana och använde realtidsdata från ett projekt. Resultatet i denna uppsats är ett förslag på vilka element som borde tas i hänsyn när en ska designa en kontrollpanel för systemutveckling.
36
Liu, Olivia. "Prediction of job completion times and optimal overtime allocation for satisfying production due dates /." Online version of thesis, 2006. https://ritdml.rit.edu/dspace/handle/1850/2822.
Full text
37
Xiong, Huijun. "Secure Data Service Outsourcing with Untrusted Cloud." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/23191.
Full textAbstract:
Outsourcing data services to the cloud is a nature fit for cloud usage. However, increasing security and privacy concerns from both enterprises and individuals on their outsourced data inhibit this trend. In this dissertation, we introduce service-centric solutions to address two types of security threats existing in the current cloud environments: semi-honest cloud providers and malicious cloud customers. Our solution aims not only to provide confidentiality and access controllability of outsourced data with strong cryptographic guarantee, but, more importantly, to fulfill specific security requirements from different cloud services with effective systematic ways.To provide strong cryptographic guarantee to outsourced data, we study the generic security
problem caused by semi-honest cloud providers and introduce a novel proxy-based secure data outsourcing scheme. Specifically, our scheme improves the efficiency of traditional proxy re-encryption algorithm by integrating symmetric encryption and proxy re-encryption algorithms. With less computation cost on applying re-encryption operation directly on the encrypted data, our scheme allows flexible and efficient user revocation without revealing underlying data and heavy computation in the untrusted cloud.
To address specific requirement from different cloud services, we investigate two specific cloud services: cloud-based content delivery service and cloud-based data processing service. For the former one, we focus on preserving cache property in the content delivery network and propose CloudSeal, a scheme for securely and flexibly sharing and distributing content via the public cloud. With the ability of caching the major part of a stored cipher content object in the delivery network for content distribution and keeping the minor part with the data owner for content authorization, CloudSeal achieves security and efficiency both theoretically and experimentally. For the later service, we design and realize CloudSafe, a framework that supports secure and efficient data processing with minimum key leakage in the vulnerable cloud virtualization environment. Through the adoption of one-time cryptographic key strategy and a centralized key management framework, CloudSafe efficiently avoids cross-VM side channel attack from malicious cloud customers in the cloud. Our experimental results confirm the practicality and scalability of CloudSafe.
Ph. D.
38
Khamrakulov, Maxim. "Secure Delivery System : Traditional Approach and Comparison to the Blockchain Model." Thesis, Luleå tekniska universitet, Datavetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-70860.
Full textAbstract:
Blockchain technologies have gradually gained popularity since the beginning of 2010. As of 2018, many companies and financial institutions are redesigning and building new sys-tems with blockchain technologies as major foundation. On paper, the blockchain has nu-merous advantages over the traditional centralized approach, however, this study showed, that there are some large drawbacks, which are associated with usage of blockchain. Themost significant downsides are blockchain’s low performance, enormous cost and highenvironmental impact, compared to traditional client-server based systems. Therefore, the overall goal of this study was to highlight the importance of consider-ing these drawbacks and discuss, how performing of a detailed feature analysis during the design phase, might guide application developers to the correct path, during theimplementation phase of a system, when blockchain is considered being an alternativeto the traditional client-server approach. As the result of this study, it turned out, thatboth client-server and blockchain based approaches do have their respective use casesand disadvantages. A conclusion was drawn, that the best approach would be eitherto use a mix of both technologies, or to use the blockchain as a verification mechanismbehind a client-server backend, in order to improve its data integrity and persistencequality attributes.
39
Bailey, Jason W. "Using data envelopment analysis to identify internal benchmarks in a large parcel delivery service." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 0.39 Mb., 97 p, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:1430769.
Full text
40
O'Connor, D. P. "Modelling of Nano-optic Light Delivery Mechanisms for use in High Density Data Storage." Thesis, Queen's University Belfast, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.527881.
Full text
41
Flores, Delgadillo Will Johnny. "IT Service Delivery in Nicaraguan Internet Service Providers : analysis and Assessment." Licentiate thesis, KTH, Data- och systemvetenskap, DSV, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-29560.
Full textAbstract:
The thesis addresses the research question: How to describe, understand, and explain IT service delivery? Based on the research question, the following research questions were derived: How to analyse IT service delivery based on ITIL in order to determine its current situation? How to formalize elements of IT service delivery in maturity level that can be used to assess its current status? These research questions are answered by two IT artefacts: an analysis method and a maturity model for IT service delivery. Both of them are constructed by design-science research guidelines. The analysis method is focused on understanding the IT service delivery in organizations; it is founded on the IT service delivery processes of Information Technology Infrastructure Library (ITIL) version 2. The method proposed has been applied through three case studies of Nicaraguan Internet Service Providers (ISPs). The maturity model is oriented to formalize and assess the maturity level of IT service delivery; it is supported by IT service delivery elements that are considered significant for managing IT service delivery by the Nicaraguan ISP sector, by IT service concepts, and by maturity model properties, and complemented by the IT Service Capability Maturity Model. The maturity model provides a mechanism for evaluating the maturity level of IT service delivery through a set of maturity statements and includes a graphical representation; it is also applied to the traceable information of the current status of IT service delivery of one of the Nicaraguan ISPs.QC 20110209
42
Cao, Lizhong (Lizhong Lilly). "Predictive modeling of fulfillment supply chain for delivery performance improvement." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/112039.
Full textAbstract:
Thesis: M.B.A., Massachusetts Institute of Technology, Sloan School of Management, in conjunction with the Leaders for Global Operations Program at MIT, 2017.S.M. in Engineering Systems Massachusetts Institute of Technology, School of Engineering, Institute for Data, Systems, and Society, in conjunction with the Leaders for Global Operations Program at MIT 2017
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 51-52).
NIKE, Inc. Direct-To-Consumer (DTC) represents sales from NIKE-owned retail stores and internet websites. DTC is experiencing tremendous growth and is projected to account for 32% of NIKE's revenue by 2020. DTC Digital (Nike.com) alone is estimated to grow at more than 46% year over year. To support such rapid growth, exceptional delivery performance is critical. As consumers become more demanding about delivery precision and as competitors offer increasingly faster options, NIKE is also focusing on initiatives around delivery service to achieve its targets and remain the industry leader. The internship aims to generate business recommendations to improve the consumer-focused delivery experience. The trade-offs between supply chain (cost) and delivery service (speed, reliability) are explored. Additionally, an analytical framework in the form of a simulation model of the digital delivery supply chain is developed to evaluate the quantitative impact of each recommendation. The following approach is used: 1. Understand current delivery issues and business requirements by learning about the delivery process, system capabilities, available data, and relevant stakeholders 2. Conduct research on consumer experience and how it compares to the industry benchmark 3. Connect with geo representatives and global stakeholders to provide learnings on short-term metric alignment (ensure common "language" in delivery service measurement) 4. Formulate recommendation hypotheses for root cause issues with the largest impact 5. Build a proof-of-concept simulation model that predicts impact on internal operational performance (distribution center processing capacity utilization) as well as the consumer-facing metric (Estimated Delivery Date, or EDD) 6. Scale the simulation model to include dynamic perspective and reflect seasonality, weekdays, time of the day, and unexpected high demand The simulation model, which emulates the North America digital business, shows significant improvement (4-10%) in delivery reliability (EDD) for each of the following recommendations: " Shape demand to level daily order volume " Proactively add two days to period with high daily demand " Prioritize orders of critical consumer segments in the distribution center The internship provides a findings summary and fact-based point-of-view to support leadership on short-term improvement decisions, and additionally produces an analytical framework using predictive modeling methodology to investigate further future long-term strategy around delivery.
by Lizhong (Lilly) Cao.
M.B.A.
S.M. in Engineering Systems
43
Guo, Minzhe. "Algorithmic Mechanism Design for Data Replication Problems." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1470757536.
Full text
44
Das, Sanchoy K. "Selection of an optimal set of assembly part delivery dates in a stochastic assembly system." Thesis, Virginia Tech, 1985. http://hdl.handle.net/10919/45640.
Full textAbstract:
The scheduling of material requirements at a factory to maximize profits.or productivity is a difficult mathematical problem. The stochastic nature of most production setups introduces additional complications as a result of the uncertainty involved in vendor reliability and processing times. But in developing the descriptive model for a system, a true representation can only be attained if the variability of these elements is considered.
Here we present the development of a normative model based on a new type of descriptive model which considers the element of stochasticity. The arrival time of an assembly part from a vendor is considered to be a normally distributed random variable. We attempt to optimize the system with regard to work-in-process inventory using a dynamic programming algorithm in combination with a heuristic procedure. The decision variable is the prescribed assembly part delivery date. The model is particularly suitable for application in low volume assembly lines, where products are manufactured in discrete batches.
Master of Science
45
Ponelis, S. R. (Shana Rachel). "Data marts as management information delivery mechanisms: utilisation in manufacturing organisations with third party distribution." Thesis, University of Pretoria, 2002. http://hdl.handle.net/2263/27061.
Full textAbstract:
Customer knowledge plays a vital part in organisations today, particularly in sales and marketing processes, where customers can either be channel partners or final consumers. Managing customer data and/or information across business units, departments, and functions is vital. Frequently, channel partners gather and capture data about downstream customers and consumers that organisations further upstream in the channel require to be incorporated into their information systems in order to allow for management information delivery to their users. In this study, the focus is placed on manufacturing organisations using third party distribution since the flow of information between channel partner organisations in a supply chain (in contrast to the flow of products) provides an important link between organisations and increasingly represents a source of competitive advantage in the marketplace. The purpose of this study is to determine whether there is a significant difference in the use of sales and marketing data marts as management information delivery mechanisms in manufacturing organisations in different industries, particularly the pharmaceuticals and branded consumer products. The case studies presented in this dissertation indicates that there are significant differences between the use of sales and marketing data marts in different manufacturing industries, which can be ascribed to the industry, both directly and indirectly.Thesis (MIS(Information Science))--University of Pretoria, 2002.
Information Science
MIS
unrestricted
46
Pramudita, Krisnaldi Eka. "Designing a Demand Forecasting Service in a Food-delivery Platform." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-294145.
Full textAbstract:
This thesis presents a preliminary design of a demand forecasting service using a service design approach. The service aims to provide a better user experience when forecasting demands for the Operational Managers (OM) in an online food-delivery platform. Based on the internal user interviews, demand forecasting is essential to plan the right yet efficient balance between order demand and delivery supply. However, some limitations were discovered in the existing process that creates unnecessary manual work, and therefore less time productivity. This thesis explores whether to create a better digital and centralized forecasting service and can be introduced to reduce the manual tasks as much as possible using Machine Learning models. The research methodologies used in this thesis are the user-centric design methods, for example, semi-structured interviews, Affinity diagrams, Stakeholder Mapping, Persona, User Journey Mapping, and Service Blueprint. Moreover, the research highlights the current gaps in the forecasting process and presents comprehensive suggestions in designing the forecasting service. The results also combined the stakeholder aspirations to ensure operational efficiency and user-centric design methods to solve those gaps.Denna uppsats presenterar en preliminär design för en tjänst för efterfrågeprognostisering med hjälp av en tjänstedesignmetod. Tjänsten syftar till att ge en bättre användarupplevelse vid prognostisering av efterfrågan för de operativa cheferna på en online-matleveranstjänst. Intervjuer med interna användare visade att prognostisering av efterfrågan är viktig för att kunna planera en korrekt men effektiv balans mellan efterfrågan och antalet kurirer. I den nuvarande processen upptäcktes dock några begränsningar som skapar onödigt manuellt arbete och mindre tidsproduktivitet. Förslaget var att skapa en bättre digital och centraliserad prognostiseringstjänst och minska de manuella uppgifterna så mycket som möjligt med hjälp av maskininlärningsmodeller. I forskningen tillämpades användarcentrerade designmetoder, till exempel halvstrukturerade intervjuer, affinitetsdiagram, intressentkartläggning, persona, kartläggning av kundresor och service blueprint. Dessutom belyste forskningen de befintliga luckorna i hela processen och presenterade omfattande förbättringsförslag för utformningen av prognostiseringstjänsten. Resultaten kombinerade också intressenternas ambitioner för att säkerställa operativ effektivitet med användarcentrerade designmetoder för att lösa rätt problem. Prognostiseringstjänsten utvecklades av företaget utgående från forskningsresultatet.
47
Rossi, Fausto. "Sviluppo di un'applicazione Android per la creazione di un Content Delivery Network." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/14878/.
Full textAbstract:
Il lavoro presenta la realizzazione di un'applicazione per lo streaming on demand realizzato in connessione diretta tra dispositivi mobili.
Vengono descritte le principali tecnologie disponibili ed i criteri che hanno portato a selezionare DASH per l'implementazione dell'applicazione di interesse che permette un live streaming multimediale con supporto di caching in una rete di dispositivi collegata tramite WiFi Direct.
L'implementazione, come dimostrato nei test, presenta dei vantaggi oggettivi in termini di qualità di riproduzione e riduzione del traffico dati mobile.
48
Conroy, Sara A. "A Novel Approach for Modeling Time to Event Data in Maternal Child Health." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1574348181518311.
Full text
49
Sankara, Krishnan Shivaranjani. "Delay sensitive delivery of rich images over WLAN in telemedicine applications." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/29673.
Full textAbstract:
Thesis (M. S.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009.Committee Chair: Jayant, Nikil; Committee Member: Altunbasak, Yucel; Committee Member: Sivakumar, Raghupathy. Part of the SMARTech Electronic Thesis and Dissertation Collection.
50
Carneiro, Viana Aline. "Putting data delivery into context: Design and evaluation of adaptive networking support for successful communication in wireless self-organizing networks." Habilitation à diriger des recherches, Université Pierre et Marie Curie - Paris VI, 2011. http://tel.archives-ouvertes.fr/tel-00653813.
Full textAbstract:
Ce document est dédié à mes travaux de recherche développés au cours des six dernières années sur la conception et l'évaluation de systèmes de réseaux sans fil et est le résultat d'un certain nombre de collaborations. En particulier, mon objectif principal a été le soutien à la livraison fiable de données dans les réseaux sans fil auto-organisés. La question centrale, qui a guidée mes activités de recherche, est la suivante: "quels sont les services réseaux sous-jacents à la bonne conception de stratégies de communication sans fil dans les systèmes de réseaux auto-organisés (fixe ou mobile)?". Les réseaux auto-organisés (WSONs) ont des caractéristiques intrinsèques et, par conséquent, nécessitent des solutions particulières qui les distinguent des réseaux traditionnels basés sur des graphes. Les différents types de WSONs nécessitent des services adaptatifs ciblés pour faire face à leur nature (i.e., la mobilité, la limitation des ressources, le manque de fiabilité des communications sans fil,. . .) et pour trouver une adéquation entre leur fonctionnement et l'environnement. Influencée par de telles observations, mes activités de recherche ont été guidées par l'objectif principal de fournir au niveau du réseau un soutien à la livraison fiable de données dans les réseaux sans fil auto-organisés. Les axes de recherche, que j'ai développés avec mes collègues dans ce contexte, sont classés comme étant des services adaptifs "au niveau noeud" et "au niveau réseau" et se distinguent par le niveau auquel l'adaptation est considérée. Mes contributions, liées à la première catégorie de service, reposent sur les services de localisation et de découverte de voisinage. En raison de la limitation de page, ce manuscrit est, cependant, consacré à la recherche que j'ai menée autour des services adaptatifs au niveau du réseau. Par conséquent, il est structuré en trois chapitres principaux correspondants à trois classes de services réseaux : des services de gestion de la topologie, des services de gestion des données et des services de routage et d'acheminement. Ma première contribution concerne des services de gestion de la topologie, qui sont réalisés grâce à l'adaptation des noeuds - en imposant une hiérarchie dans le réseau via la clusterisation ou en supprimant des noeuds du graphe du réseau en les éteignant - et par la mobilité contrôlée - qui affecte à la fois la présence de noeuds et de liens, ainsi que la qualité des liens dans le graphe du réseau. Se basant sur l'adaptation de noeuds, le protocole SAND, les systèmes VINCOS et NetGeoS qui portent respectivement sur la conservation d'énergie et sur l'auto-structuration des réseaux de capteurs sans fil (WSN) ont été proposés. Ensuite, se basant sur la mobilité contrôlée, des propositions, liées à la conception de trajectoire de Hilbert et du protocole Cover, ont été présentées. Elles se concentrent sur le déploiement de solutions pour la couverture de zone avec des noeuds mobiles et ont été conçues pour surveiller périodiquement une zone géographique ou pour couvrir des noeuds de capteurs mobiles (cibles). Considérant les services de gestion de données, mes contributions se rapportent à la collecte des données - qui implique des solutions de distribution de données avec des objectifs liés a l'organisation - et la diffusion des données - où les flux de données sont dirigés vers le réseau. Pour cela, les protocoles DEEP et Supple ont été conçus pour les réseaux de capteurs sans fil, tandis que FairMix et VIP delegation se concentrent sur la diffusion d'information dans les réseaux sans fil sociaux. En particulier, afin d'améliorer la diffusion des données, FairMix et VIP delegation, exploitent les similarités des intérêts sociaux des personnes ou des groupes dans les réseaux fixes ou l'aspect social de leurs interactions sans fil dans les réseaux mobiles. Finalement, mes travaux sur les services adaptatifs d'acheminement attaquent la problèmatique de la connectivité opportuniste dans les réseaux sans fil tolérants aux délais. Dans ce contexte, les protocoles Seeker et GrAnt ont été conçus et utilisent respectivement l'histoire du contact entre les noeuds (les schémas de contact et de communication) et les propriétés des réseaux sociaux de noeuds afin de prédire les futures rencontres et de mieux ajuster les décisions de transfert. Au regard des nouvelles possibilités de communication et du changement dynamique observé au cours des dernières années dans les réseaux sans fil, mes activités de recherche se sont progressivement orientés des réseaux auto-organisés connectés vers les réseaux connectés par intermittence et opportunistes. De cette façon, mes perspectives de recherche future sont: (1) tirer profit des schémas de mobilité incontrôlée des dispositifs mobiles pervasifs pour améliorer les efforts de perception collaborative; (2) regarder plus en profondeur les techniques de génération de graphes sociaux à partir des traces décrivant les contacts entre les noeuds; (3) étudier quels sont les facteurs ayant un impact (positif ou négatif) sur le succès de la diffusion de l'information dans les réseaux sociaux mobiles, et (4) étudier la possibilité d'adapter le codage réseau à la diffusion d'information dans les réseaux sociaux mobiles.