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Jia, Sijun. "An effective solution for bluetooth adhoc networking." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/7238.
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Bluetooth operates in the unlicensed ISM frequencies with a spread spectrum and frequency hopping, and it has the features such as robustness, low power consumption and low cost. Therefore, Bluetooth has been supported on the most number of devices of various types. Bluetooth connection is defined as in Piconet which has limits on range and the number of devices, so many researches have been done to connect more devices across longer ranges with Bluetooth, but there has not been an effective solution so far due to the protocol limitation, device versatility and mobility. In this thesis, we designed and implemented such a solution based on Piconet topology, existing Internet and adhoc networking protocols. In our solution, networking is performed on a high and abstract layer, so devices with different hardware or operating systems can join the network by installing a program without low level system change. We adjusted and implemented the standard Adhoc On-demand Distance Vector (AODV) protocol for IEEE 802.11 in our system to support route discovery and maintenance in Bluetooth network. We also used techniques such as pre-warm and redundant routes to improve the performance and robustness of the network. Our system support scalable peer to peer networking without any centralized controls. We tested our solution on real devices and on device emulators in large scale, and the result showed the system can form Bluetooth network efficiently in a scalable way.
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Chung, Edgar N. 1977. "A cost effective ATE calibration/verification solution." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/86290.
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Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.<br>Includes bibliographical references (leaves 64-65).<br>by Edgar N. Chung.<br>S.B.and M.Eng.
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Matsumoto, Naoko. "Effective distribution coefficients of a binary ideal solid solution." 京都大学 (Kyoto University), 2001. http://hdl.handle.net/2433/150843.
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Roussel, Harold. "Solution generating techniques in low energy effective string theory." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ37018.pdf.
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Moyo, Mondli. "Cost-effective solution for electric micro-grid in Rottnest Island." Thesis, Moyo, Mondli (2017) Cost-effective solution for electric micro-grid in Rottnest Island. Honours thesis, Murdoch University, 2017. https://researchrepository.murdoch.edu.au/id/eprint/41291/.
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Microgrids are a relatively recent technology, but the concept has been around for a long time. Since the first power system built in 1881, power systems have experienced substantial changes leading to the current networks where all the electrical energy is produced in large plants that are heavily dependent on fossil fuels, hydro and sometimes nuclear power (Ernst 2014). Micro grids have always been in existence but the technology to implement them on a large scale has limited micro grids from flourishing.
Rottnest Island is a notable example of a place currently implementing the use of a hybrid micro-grid (HMG) on a large scale. Up until recently, the island was solely dependent on diesel generators for electricity, in 2004 a 600kW wind turbine was added to supplement the electricity energy produced by generators and offset some diesel fuel consumption. Due to the high costs of shipping diesel into the island, The Rottnest Island Authority (RIA) decided to upgrade the island’s electrical network by incorporating a 600-kW photovoltaic system into the network and upgrading the existing water treatment plant as the RIA had recorded increasing levels of salt levels in the island’s underground water.
This research evaluates multiple aspects of running the upgraded hybrid solar-wind-diesel micro-grid and how the levelised cost of electrical energy production can be reduced by using Homer software to analyse the island’s electrical load profile and using the data to assess every possible system combination. The current setup of the network is quite inefficient as there is excess power being produced which is then being sent to a dump load. The results have been conclusive in terms of finding better combinations that will not only increase the reliability of the HMG but also reduce the overall LCOE. Storage capabilities in the network would be advantageous not only in reducing the LCOE but also producing a high quality of power while also increasing the overall stability of the network.
Further simulations were conducted to include a theoretical load into the existing system. This was view as a theoretical thermal load that simulates the idea of hot water storage for the island. The thermal load was designed in a way that it would consume any excess energy being generated in the system to heat up water for later usage.
The conclusion has been that while the current HMG setup is functional and environmentally friendly, the LOCE of the overall network is high and impractical. For the current design of the microgrid, a lot of energy is wasted, which is energy that can be utilised by incorporating components such as storage devices or maybe utilising the already existing desalination plant to heat and store hot water. These components could help reduce the number of diesel generators used and utilises most of the electricity generated by the renewable energy sources.
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Hayes, Christopher James. "Solution-focused congregational change an alternative model for effective church leadership /." Fort Worth, Tex. : [Texas Christian University], 2010. http://etd.tcu.edu/etdfiles/available/etd-06242010-091311/unrestricted/Hayes.pdf.
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Thesis (D.Min.)--Brite Divinity School, Texas Christian University, 2010.<br>Title from dissertation title page (viewed Jun. 24, 2010). Includes abstract. "A project report and thesis submitted to the Faculty of Brite Divinity School in partial fulfillment of the requirements for the degree of Doctor of Ministry." Includes bibliographical references.
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Joss, Ann Elizabeth. "The gender pay gap : are equal pay audits an effective solution?" Thesis, City University London, 2005. http://openaccess.city.ac.uk/8437/.
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Equal Pay Audits are the latest tool in the campaign for gender equality at work. I use two pay audits, in a bank and an insurance company, to demonstrate how they can be used and abused, and in the process I explore the reasons for the massive gender pay gap of forty three per cent in the finance sector of the United Kingdom. The conduct of a pay audit allows an employer to claim conformity with government approved procedures, but I ask how reliable those procedures are, and how the process can be improved. The introduction of 'nev/ payment systems such as performance related pay has allowed employers to claim that pay and promotion are fair because they are determined by 'objective' criteria. The validity of such claims is tested, and other elements of the pay process that contribute to unequal pay sought out. The potential for 'new' payment systems to be transparent is found to be offset by provision for management discretion, but the major contributor to the gap is found to be the development of a two tier workforce following recent restructuring of the industry. This effectively reproduces the gendered divisions that existed prior to the implementation of Equal Opportunities legislation. The women who occupy most of the lower tier are mainly employed in call centres and customer service departments, where they have better pay and conditions than they could expect for alternative jobs in the same locality, sufficient flexibility to accommodate domestic commitments, but a flat career structure with little opportunity for promotion. The few men who join this tier do so as a stepping stone to the traditional departments where promotion provides access to some of the highest salaries in the UK.
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Perera, Ashansa. "Window-based Cost-effective Auto-scaling Solution with Optimized Scale-in Strategy." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-194210.
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Auto-scaling is a major way of minimizing the gap between the demand and the availability of the computing resources for the applications with dynamic workloads. Even though a lot of effort has been taken to address the requirement of auto-scaling for the distributed systems, most of the available solutions are application-specific and consider only on fulfilling the application level requirements. Today, with the pay-as-you-go model of cloud computing, many different price plans have been offered by the cloud providers which leads the resource price to become an important decision-making criterion at the time of auto-scaling. One major step is using the spot instances which are more advantageous in the aspect of cost for elasticity. However, using the spot instances for auto-scaling should be handled carefully to avoid its drawbacks since the spot instances can be terminated at any time by the infrastructure providers. Despite the fact that some cloud providers such as Amazon Web Services and Google Compute Engine have their own auto-scaling solutions, they do not follow the goal of cost-effectiveness. In this work, we introduce our auto-scaling solution that is targeted for middle-layers in-between the cloud and the application, such as Karamel. Our work combines the aspect of minimizing the cost of the deployment with maintaining the demand for the resources. Our solution is a rule-based system that is built on top of resource utilization metrics as a more general metric for workloads. Further, the machine terminations and the billing period of the instances are taken into account as the cloud source events. Different strategies such as window based profiling, dynamic event profiling, and optimized scale-in strategy have been used to achieve our main goal of providing a cost-effective auto-scaling solution for cloud-based deployments. With the help of our simulation methodology, we explore our parameter space to find the best values under different workloads. Moreover, our cloud-based experiments show that our solution performs much more economically compare to the available cloud-based auto-scaling solutions.
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Rightley, Shane M. "Perturbation Solution for Two Trapped Particles in an Effective Field Theory Framework." Thesis, The University of Arizona, 2010. http://hdl.handle.net/10150/146936.
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Particles interacting with sufficiently low energies have dynamics independent of the details of the interaction. This problem is generalized and extended within the context of an effective field theory (EFT). We investigate the case of two such particles in an harmonic trap and construct the inter-particle potential using an EFT expansion. In position space the effective interaction consists of a series of delta-functions and their derivatives. We approximate the energy spectrum in perturbation theory, compare to the results of analytical solutions and discuss the ordering of terms from the potential within the perturbation expansion.
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Костель, Микола Васильович, Николай Васильевич Костель, Mykola Vasylovych Kostel, and K. M. Karabets. "Solution of the problems of bank's rating through interaction with financial management for effective operation." Thesis, Sumy State University, 2017. http://essuir.sumdu.edu.ua/handle/123456789/64994.
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A competitive banking system plays a major role in the formation of the
financial stability, wealth, and strong country’s position in the international space,
as well as in facilitating the development of public and private business sectors at
all levels, creation the favorable climate for foreign investment, etc.
The crucial point of ensuring the transparency of banks for different
stakeholders is the available information about existing financial risks valuated by
Rating agencies.
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Dakhwe, Adnan B. A. "A DYNAMIC, COST-EFFECTIVE AND EFFICIENT INFORMATION PORTAL SOLUTION USING THE MAMBO CONTENT MANAGEMENT SYSTEM." Ohio University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1155585248.
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Small, Craig. "Effective solution focused coaching : a Q-methodology study of teachers' views of coaching with educational psychologists." Thesis, University of Nottingham, 2011. http://eprints.nottingham.ac.uk/14385/.
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Stober, Wildflower and Drake (2006) call for coaches to 'begin integrating evidence from both coaching-specific research and related disciplines, their own expertise, and an understanding of the uniqueness of each client ... into a coherent body of knowledge that applies to and guides coaching'. This study does this by looking into the work of the Nottinghamshire Solution Focused Coaching team and how teacher coachee view effective coaching. Q-methodology (Stephenson, 1953) is a Quali-quantalogical technique able to describe in detail the range of views around a topic. This research used Q-methodology to examine teacher views on effective Solution Focused Coaching with EPs. By-person factor analysis of the Q-sorts of 27 teachers suggested 3 different viewpoints on effective Solution Focused Coaching (SFC) and some key ideas held in consensus across the views. The viewpoints were found to differentiate across three themes; whether coaching involved developing action plans; where the goals for coaching emanated from; and the coachee's engagement with the confidentiality offered. The consensus statements showed a preference for a focus on strengths, skills, and what is helping at present; of receiving strength-based feedback; and on identifying elements of goals being in place. Working with client strengths has been highlighted in the therapy outcome literature and the study is theorized with reference to this and the concept of "therapeutic alliance". It is suggested that effective SFC might involve the EP constructing a "coaching alliance" and combining this with a focus on client strengths to provide a foundation for SFC. The descriptions of the viewpoints, and consensus ideas, are offered as resources for exploring the practicalities of such an approach. Whilst being the semantic and subjective products of human thought, the views operant in the study can be said to be "as real, as substantial, and as difficult to get around as any thing the natural world puts in our way" (Watts, 2007). Such a linguistic turn is expanded upon through exploration of educational psychology as social construction. Suggestions are made about how EPs could interpret social constructionism in their practice.
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Hill, Ryan. "Green ozone technology for water and wastewater treatment : an energy-efficient, cost effective and sustainable solution." Thesis, Queen's University Belfast, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.680079.
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KAWABE, Iwao, Kazuya MIYAKAWA, and Tianshi YANG. "Enhanced dissolution of soda-lime glass under stressed conditions with small effective stress (0.05 MPa) at 35℃ to 55℃: Implication for seismogeochemical monitoring." Dept. of Earth and Planetary Sciences, Nagoya University, 2012. http://hdl.handle.net/2237/20537.
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Nguyen, Linda T. (Linda Thi). "Is specialization the most effective solution to overload? : a system dynamics exploration of a product development organization." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/59260.
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Thesis (S.M. in System Design and Management)--Massachusetts Institute of Technology, Engineering Systems Division, 2010.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 86-87).<br>This work investigates the overload problems of one product development department in a consumer products company. Many in the organization attribute the problem to an external source - a burgeoning product portfolio. The most common solution posed is to split the department into two in order to reap the productivity gains of specialization and reduce the overload. It is proposed that some of the overload is internally generated and specialization alone will not be enough. There is a Reinventing the Wheel phenomenon that occurs when projects are handed off from one person to another. Additional work is generated with each hand off. This problem can be exacerbated by high turnover, lack of documentation, switch loss, or delays in project completion. System dynamics models were created to explore the feedback loops, delayed effects of managerial decisions and resulting behavior of the system. Results showed that specialization leads to initially high productivity, but the gains decrease over time as breadth of experience across the organization decays and rework and coordination costs increase. It is also shown that overload could be internally generated through managerial policies. If these policies are not changed, specializing may not be as effective. Recommendations include considering turnover as part of project planning and carefully monitoring workload so that the productivity does not plummet and affect all programs. Specialization is a good solution in some cases, but is not the best solution for work that requires a great deal of interaction between functions, where the level of coordination required to share knowledge outweighs the productivity gains.<br>by Linda Thi Nguyen.<br>S.M.in System Design and Management
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Pei, Hongxia. "Bead Modeling of Transport Properties of Macromolecules in Free Solution and in a Gel." Digital Archive @ GSU, 2010. http://digitalarchive.gsu.edu/chemistry_diss/49.
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On the bead modeling methodology, or BMM, a macromolecule is modeled as a rigid, non-overlapping bead array with arbitrary radii. The BMM approach was pioneered by Kirkwood and coworkers (Kirkwood, J.G., Macromolecules, E.P. Auer (Ed.), Gordon and Breach, New York, 1967; Kirkwood, J.G., Riseman, J., J. Chem. Phys., 1948, 16, 565) and applied to such transport properties as diffusion, sedimentation, and viscosity. With the availability of computers, a number of investigators extended the work to account for the detailed shape of biomolecules in the 1970s. A principle objective of my research has been to apply the BMM approach to more complex transport phenomena such as transport in a gel, electrophoresis (free solution and in a gel), and also transport in more complex media (such as the viscosity of alkanes and benzene). Variables considered by the BMM include the number of beads (N), the radii of the beads, net charge and charge distribution, conformations, salt type, and salt concentration. The BMM has been extended to: (1) account for the existence of a gel; (2) characterize the charge and secondary structure of macromolecules; (3) account more accurately for hydrodynamic interaction (remove the orientationnal preaveraging approximation of hydrodynamic interaction); (4) study the effect of ion relaxation for particles in arbitrary size, shape, and charge; (5) consider the salt dependence of electrokinetic properties; (6) account for the formation of possible complex between guest ions and BGE ions. We also did diffusion constant measurement by NMR for amino acids and short peptides in 10%D2O-90% H2O at room temperature and applied to our modeling study by BMM.
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Ford, Derek William. "The next generation planning board : a visible solution for effective manufacturing planning and control for a process manufacturing environment." Thesis, Cranfield University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393696.
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Musleh, Maath. "Visual Analysis of Industrial Multivariate Time-Series Data : Effective Solution to Maximise Insights from Blow Moulding Machine Sensory Data." Thesis, Linnéuniversitetet, Institutionen för datavetenskap och medieteknik (DM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-105253.
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Developments in the field of data analytics provides a boost for small-sized factories. These factories are eager to take full advantage of the potential insights in the remotely collected data to minimise cost and maximise quality and profit. This project aims to process, cluster and visualise sensory data of a blow moulding machine in a plastic production factory. In collaboration with Lean Automation, we aim to develop a data visualisation solution to enable decision-makers in a plastic factory to improve their production process. We will investigate three different aspects of the solution: methods for processing multivariate time-series data, clustering approaches for the sensory-data cultivated, and visualisation techniques that maximises production process insights. We use a formative evaluation method to develop a solution that meets partners' requirements and best practices within the field. Through building the MTSI dashboard tool, we hope to answer questions on optimal techniques to represent, cluster and visualise multivariate time series data.
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Schenker, Jakob E. "Ecological Remediation Using Bacterial, Fungal, and Plant Microcosms: An Effective Solution for Bunker C Crude Oil Contamination in Waterways." ScholarWorks @ UVM, 2014. http://scholarworks.uvm.edu/graddis/279.
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Factory legacy pollutants are an increasing concern for waterways as old infrastructure deteriorates and contaminates nearby environments. The Fisherville Mill in Grafton, Massachusetts, USA exemplifies this problem since it has now fallen into disrepair and is leaking Bunker C crude oil into the adjoining Blackstone River, a third order stream. Our research examines how effectively an ecologically engineered system (EES), consisting of anaerobic bacteria environments, fungal microcosms, and aquatic plant environments, can break down petroleum hydrocarbons, specifically aliphatic and polycyclic aromatic hydrocarbons (PAH), in this river environment.
Our testing protocol involved taking water samples before and after each filtration stage monthly from June through October 2012. Water samples were analyzed at the Brown University Superfund Research Lab using mass spectrometry to determine aliphatic and PAH concentrations.
Post-treatment aliphatic oil concentrations were significantly different from baseline concentrations (p=0.005), with an average reduction of 95.2%. Post-treatment PAH concentrations were also significantly different from baseline concentrations (p=0.001), with an average reduction of 91%. We conclude that this EES provided effective treatment for Bunker C crude oil, even though some filtration stages did not achieve their intended objectives. This type of filtration arrangement might be scaled up for use in larger remediation efforts regarding Bunker C crude oil.
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Diem, Matthew M. "Development of a combined hot isostatic pressing and solution heat-treat process for the cost effective densification of critical aluminum castings." Link to electronic thesis, 2003. http://www.wpi.edu/Pubs/ETD/Available/etd-0107103-162146.
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Tran, Anh-Tuan. "Modélisation et simulation des interfaces non classiques dans l’écoulement de Stokes et dans les composites élastiques fibreux." Thesis, Paris Est, 2014. http://www.theses.fr/2014PEST1071/document.
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Ce travail de thèse, constitué de deux parties apparemment très différentes, a pour objectif commun de modéliser et simuler certaines interfaces non classiques en mécanique des fluides et en mécanique des solides. Dans la première partie qu'est la partie principale du travail, l'écoulement de Stokes d'un fluide dans un canal encadré par deux parois solides parallèles est étudié. La surface d'une paroi étant supposée lisse, la condition d'adhérence parfaite classique est adoptée pour l'interface fluide-solide homogène correspondante. La surface de l'autre paroi étant supposée rugueuse et capable de piéger de petites poches d'air, l'interface liquide-solide correspondante est donc hétérogène. La première partie de ce travail consiste à homogénéiser l'interface liquide-solide hétérogène de façon à remplacer cette dernière par une interface fluide-solide homogène imparfaite caractérisée par une longueur de glissement effective. Le problème essentiel de déterminer la longueur de glissement effective est résolu par le développement : (i) d'une approche semi-analytique dans le cas où la surface rugueuse est périodique; (ii) d'une approche basée sur la méthode de solution fondamentale dans le cas où la surface rugueuse est aléatoire. Les résultats obtenus par les approches développées sont systématiquement comparés avec ceux délivrés par la méthode des éléments finis. La deuxième partie du travail est de déterminer les modules élastiques effectifs d'un composite fibreux dans lequel les interfaces entre la matrice et les fibres sont imparfaites et décrites par le modèle membranaire. Une méthode numérique efficace basée sur la transformée de Fourier est ainsi développée et implantée pour traiter le cas général où la section d'une fibre peut avoir une forme quelconque<br>The present work, consisting of two seemingly very different parties, aims at modeling and simulating some non-classical interfaces in fluid mechanics and solid mechanics. In the first part which is the main part of the work, the Stokes flow of a fluid in a channel bounded by two parallel solid walls is studied. The surface of a solid wall being assumed to be smooth, the classic perfect adherence condition is adopted for the corresponding homogeneous fluid-solid interface. The surface of the other wall being taken to be rough and capable of trapping small pockets of air, the corresponding liquid-solid interface is heterogeneous. The first part of this work is to homogenize the heterogeneous liquid-solid interface so as to replace it by an imperfect homogeneous fluid-solid interface characterized by an effective slip length. The essential underlying problem of determining the effective slip length is achieved by developing: (i) a semi-analytical approach when the rough surface is periodic; (ii) an approach based on the fundamental solution method when the surface is randomly rough. The results obtained by the developed approaches are systematically compared with those issued from the finite element method. The second part of the work is to determine the effective elastic moduli of a fiber composite in which the interfaces between the matrix and fibers are imperfect and described by the membrane model. An efficient numerical method based on the fast Fourier transform is developed and implemented to treat the general case where the section of a fiber can be of any shape
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Jassim, Hamdi Taih. "The efficacy of Iraq law to deal with identity theft and proposals for a more legally effective solution, with comparative references to US and UK laws." Thesis, Bangor University, 2014. https://research.bangor.ac.uk/portal/en/theses/the-efficacy-of-iraq-law-to-deal-wqith-identity-theft-and-proposals-for-a-more-legally-effective-solution-with-comparative-references-to-us-and-uk-laws(a1d2279c-11f6-4081-96de-7c19c9db9c3c).html.
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This thesis deals with a specific type of crime, which is, today called a millennium crime. This crime is identity theft. It is not a new crime, but technological development makes it a difficult crime to combat, as nowadays it can be committed by both traditional, so-called non-sophisticated methods, and by more sophisticated, technological means, since the advent of the internet. Identity theft is a crime committed against a person’s means of identification or their financial information. The criminal, legally or illegally obtains another person’s means of identification for the purpose of either himself (or others) using it to commit other illegal activities. Iraq, currently, has no dedicated law to deal with identity theft. Therefore, the Iraq courts will find it difficult when they seek to apply existing legal texts, to deal with it effectively. Through an examination of Iraqi criminal laws, this thesis will assess whether existing Iraq criminal law is adequate to combat identity theft, and it will assess whether Iraq courts can effectively judge an accused who obtains another person’s means of identification, and then uses to commit other crimes. It seems that, first sight that identity theft shares common elements with theft offence in Iraq law, and thus, the Iraqi courts may use the current theft offence laws to fight identity theft, but this study will show that this has limitations and drawbacks. Comparative analysis with the relevant UK and US laws used to combat identity theft will form part of this analysis, in an effort to assess the effectiveness of this approach, and illustrate its weaknesses. While this thesis preparation was being undertaken, the Iraqi Government proposed a project called the Information Crimes Project 2011. This project inter alia proposed to govern identity theft with new model laws. This thesis demonstrates that this project will not succeed in realising this objective, and the thesis shows, in conclusion, existing laws, as well as proposed laws, are inadequate to govern identity theft in Iraq, and their inadequacy requires either a judicial or legislative solution. The thesis demonstrates the limitations of judicial solution because the application of the principle of legality, and concludes that the most effectively way for Iraq to combat identity theft would be to enact a new, dedicated law to fight identity theft. To assist the Iraqi legislature to enact an appropriate piece of legislation, this thesis analyses relevant UK and US laws, and assesses elements of those laws, and their utility for the Iraqi legislature, should it seek to borrow or adopt provisions from them for a new Iraqi identity theft law. One of the key findings of this thesis is that the actual identity theft must be criminalised, and this is something that is not a feature in laws of other jurisdictions, although there are several elements of other jurisdictions’ laws which, if suitable adapted, could be useful incorporated into an Iraqi identity theft law. This thesis concludes by proposing recommendation that will be guide the Iraqi legislature if it intends to enact a dedicated identity theft law at some point in the near future.
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Brabandt, Niels [Verfasser]. "Finding a Solution to Leadership : The Development of an Effective and Sustainable Leadership Concept Based on the Considerations of the Pioneers of Management and Leadership / Niels Brabandt." Munich : GRIN Publishing, 2016. http://d-nb.info/1121590012/34.
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March, Nathan. "Analytical, numerical and macroscopic modelling approaches for diffusive transport processes in heterogenous media." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/208260/1/Nathan_March_Thesis.pdf.
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This project used mathematical modelling to better understand diffusion in composite materials. It resulted in new analytical, numerical and macroscopic modelling techniques that can be applied to a greater variety of problems, are more efficient than existing methods and yield more accurate and efficient simulations of complex diffusion processes.
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Šebej, Matej. "IT SOLUTIONS FOR EFFECTIVE HEALTHCARE MANAGEMENT." Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-191866.
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Why do the healthcare facilities incur debt? What troubles the managers most? In what conditions do the healthcare professionals work? Is there space for improvement? Is it possible to deliver higher quality care? Nowadays, the healthcare providers are looking for solutions, which could help them satisfy more patients, reach lower costs and therefore increase own financial results and answer the abovementioned questions. Key element of such a solution is a business intelligence system, which supports decision-making and aligns enterprise objects with its progress and improves the overall performance. The thesis elaborates on the topic of business intelligence software QlikView in selected hospitals, which already implemented or are about to implement the business intelligence software. The intention was to find out ways in which the software is used in the hospitals, what key performance indicators the software usually measures and what could be the possible opportunities for its further use in the selected facilities. Research results indicate that the software significantly increased the work efficiency and that it contributes to more effective hospital management. However, such improvement in efficiency has also its drawbacks, namely it is the higher price per personal licence in comparison to the other business intelligence software on the market. Research also confirmed the fact that only usage of such software alone will not help to improve the overall bad state of Slovak healthcare system -- systematic measures such as DRG system have to be implemented in the first place in order to also effectively use the business intelligence software.
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Chemissany, Wissam Ali. "String effective actions, dualities, and generating solutions." [S.l. : [Groningen : s.n.] ; University Library Groningen] [Host], 2008. http://irs.ub.rug.nl/ppn/.
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Duta, Ionut Cosmin. "Efficient and Effective Solutions for Video Classification." Doctoral thesis, Università degli studi di Trento, 2017. https://hdl.handle.net/11572/369314.
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The aim of this PhD thesis is to make a step forward towards teaching computers to understand videos in a similar way as humans do. In this work we tackle the video classification and/or action recognition tasks. This thesis was completed in a period of transition, the research community moving from traditional approaches (such as hand-crafted descriptor extraction) to deep learning. Therefore, this thesis captures this transition period, however, unlike image classification, where the state-of-the-art results are dominated by deep learning approaches, for video classification the deep learning approaches are not so dominant. As a matter of fact, most of the current state-of-the-art results in video classification are based on a hybrid approach where the hand-crafted descriptors are combined with deep features to obtain the best performance. This is due to several factors, such as the fact that video is a more complex data as compared to an image, therefore, more difficult to model and also that the video datasets are not large enough to train deep models with effective results. The pipeline for video classification can be broken down into three main steps: feature extraction, encoding and classification. While for the classification part, the existing techniques are more mature, for feature extraction and encoding there is still a significant room for improvement. In addition to these main steps, the framework contains some pre/post processing techniques, such as feature dimensionality reduction, feature decorrelation (for instance using Principal Component Analysis - PCA) and normalization, which can influence considerably the performance of the pipeline. One of the bottlenecks of the video classification pipeline is represented by the feature extraction step, where most of the approaches are extremely computationally demanding, what makes them not suitable for real-time applications. In this thesis, we tackle this issue, propose different speed-ups to improve the computational cost and introduce a new descriptor that can capture motion information from a video without the need of computing optical flow (which is very expensive to compute). Another important component for video classification is represented by the feature encoding step, which builds the final video representation that serves as input to a classifier. During the PhD, we proposed several improvements over the standard approaches for feature encoding. We also propose a new feature encoding approach for deep feature encoding. To summarize, the main contributions of this thesis are as follows3: (1) We propose several speed-ups for descriptor extraction, providing a version for the standard video descriptors that can run in real-time. We also investigate the trade-off between accuracy and computational efficiency; 
(2) We provide a new descriptor for extracting information from a video, which is very efficient to compute, being able to extract motion information without the need of extracting the optical flow; (3) We investigate different improvements over the standard encoding approaches for boosting the performance of the video classification pipeline.;(4) We propose a new feature encoding approach specifically designed for encoding local deep features, providing a more robust video representation.
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Duta, Ionut Cosmin. "Efficient and Effective Solutions for Video Classification." Doctoral thesis, University of Trento, 2017. http://eprints-phd.biblio.unitn.it/2669/1/Duta_PhD-Thesis.pdf.
Full textAbstract:
The aim of this PhD thesis is to make a step forward towards teaching computers to understand videos in a similar way as humans do. In this work we tackle the video classification and/or action recognition tasks. This thesis was completed in a period of transition, the research community moving from traditional approaches (such as hand-crafted descriptor extraction) to deep learning. Therefore, this thesis captures this transition period, however, unlike image classification, where the state-of-the-art results are dominated by deep learning approaches, for video classification the deep learning approaches are not so dominant. As a matter of fact, most of the current state-of-the-art results in video classification are based on a hybrid approach where the hand-crafted descriptors are combined with deep features to obtain the best performance. This is due to several factors, such as the fact that video is a more complex data as compared to an image, therefore, more difficult to model and also that the video datasets are not large enough to train deep models with effective results. The pipeline for video classification can be broken down into three main steps: feature extraction, encoding and classification. While for the classification part, the existing techniques are more mature, for feature extraction and encoding there is still a significant room for improvement. In addition to these main steps, the framework contains some pre/post processing techniques, such as feature dimensionality reduction, feature decorrelation (for instance using Principal Component Analysis - PCA) and normalization, which can influence considerably the performance of the pipeline. One of the bottlenecks of the video classification pipeline is represented by the feature extraction step, where most of the approaches are extremely computationally demanding, what makes them not suitable for real-time applications. In this thesis, we tackle this issue, propose different speed-ups to improve the computational cost and introduce a new descriptor that can capture motion information from a video without the need of computing optical flow (which is very expensive to compute). Another important component for video classification is represented by the feature encoding step, which builds the final video representation that serves as input to a classifier. During the PhD, we proposed several improvements over the standard approaches for feature encoding. We also propose a new feature encoding approach for deep feature encoding. To summarize, the main contributions of this thesis are as follows3: (1) We propose several speed-ups for descriptor extraction, providing a version for the standard video descriptors that can run in real-time. We also investigate the trade-off between accuracy and computational efficiency;
(2) We provide a new descriptor for extracting information from a video, which is very efficient to compute, being able to extract motion information without the need of extracting the optical flow; (3) We investigate different improvements over the standard encoding approaches for boosting the performance of the video classification pipeline.;(4) We propose a new feature encoding approach specifically designed for encoding local deep features, providing a more robust video representation.
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Walha, Sonda. "Construction de solutions particulières de types ondes progressives pour le modèle de Frenkel-Kontorova et pour l’équation des ondes régularisée." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMIR29.
Full textAbstract:
Cette thèse porte sur la construction de solutions particulières de type ondes progressives ou ondes planes pour différentes équations aux dérivées partielles (EDP) et en particulier le modèle de Frenkel-Kontorova et une équation des ondes régularisée. Ce mémoire s’articule comme suit. Le chapitre 1 est destiné à une introduction générale dans laquelle je présente une motivation physique et un résumé de mon travail. Le chapitre 2 est destiné à l’étude d’existence et d’unicité des ondes progressives avec le terme d’accélération. Ce modèle consiste d’un système d’ODE qui décrit le mouvement de particules en interaction. Les applications les plus importantes que nous avons à l’esprit est le mouvement des défauts cristallins appelés dislocations. Pour ce modèle, nous montrons l’existence des ondes progressives sous des hypothèses très faibles. L’unicité de la vitesse a été étudiée ainsi que l’unicité du profil en utilisant les différents types du principe de maximum fort. Comme ce que nous savons, c’est le premier résultat concernant les ondes progressives pour un système accéléré, spatialement discret. Ce chapitre est un article publié à la revue Journal of Dynamic and Differential Equation : Existence and uniqueness of traveling wave for accelerated Frenkel-Kontorova model, Journal of Dynamic and Differential Equation : Volume 26, Issue 24 (2014), page 1133-1169. Le chapitre 3 est réservé à l’homogénéisation numérique du modèle Frenkel-Kontrova dans le cas amortie. Je présente deux méthodes pour calculer l’hamiltonien effectif: la méthode grand temps et la méthode de Newton. Quelques simulations de l’hamiltonien effectif sont fournies. Le chapitre 4 est destiné à l’étude d’équation d’onde dans un domaine périodique. Selon certaines hypothèses, je construis une solution d’onde plane pour le problème approché et je montre que cette solution satisfait certaines propriétés. Je définis un opérateur non local et un terme correcteur afin de contrôler les oscillations de la solution dans l’espace et dans le temps. Je prouve la construction d’une solution d’onde plane pour un problème approché en utilisant la notion de solution de viscosité<br>This thesis deals with the construction of particular solutions of traveling wave or plane wave for different equations partial derivative (EDP) and in particular the Frenkel-Kontorova model and a regularized wave equation. This memory is structured as follows. The chapter 1 is preserved for a general introduction in which i present a physical motivation and a abstract of my work. In chapter 2, I interested to the study the existence and uniqueness of traveling wave solution for the accelerated Frenkel-Kontorova model. This model consist in a system of ODE that describe the motion particles in interaction. The most important applications ihave inmind in the motion of cristal defects called dislocations. For this model, i prove the exxistence of traveling wave solutions under very weak assumptions. The uniqueness of the velocity is also studied as well the uniqueness of the profile which used ddifferent types of strpng maximum principle. As far as we know, this is the first result concerning traveling waves for accelerated, spatially discrete system. This chapter is an article published in the Journal Dynamic and Differential Equation:Existence and uniqueness of traveling wave for accelerated Frenkel-Kontorova model, Journal of dynamic and Differential Equation : Volume 26, Issue 24 (2014), page 1133-1169. In chapter 3, i interested in the numerical homogenization of fully overdomped frenkel-Kontorova model. I present two methods for computing the effective hamiltonian : large time method and Newton-like method. Some simulations of the effective hamiltonian are provided. Le chapter 4 is preserved to the study a wave equation in a periodic medium. Under certain assumption, i construct a plane wave like solution, and show that this solution satisfy some properties. I define a non- local operator and a term corrector in order to control the oscillations of the solution in space and in time. We prove the construction of a plane wave like solution for the approched problem using the notion of viscosity solution
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Ilgöy, Hülya. "Konflikthantering i förskolan : en kvalitativ intervjustudie om olika sätt att arbeta med konflikthantering i förskolan." Thesis, Södertörns högskola, Lärarutbildningen, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-21946.
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The aim of this thesis was to find out how the teachers I have interviewed, felt that they worked with and looked at conflict management. The aim was also to find similarities and differences in teachers' ways of working with conflict. With the help of my questions, I got answers to what I wanted to explore in my essay. I used these questions: What strategies do the teachers I interviewed for managing conflicts in preschool? What tools do the teachers I interviewed see as most effective in the process of conflict management? Are there differences and similarities in the way that the teachers I interviewed work with current conflict? What factors, according to the informants starts a conflict? What is the teachers’ definition of a conflict and how does their definition affect their approach when working with conflicts?In my study, I have used a qualitative approach in the form of structured interview, to get material for my thesis. In my interviews, I used an interview guide and a tape recorder.I analyzed my material using three different theories. The first theory is Vygotsky's theory of learning and development from a sociocultural perspective, the other is Skinner's theory of positive feedback and the third is Freud's psychoanalytic theory. I have also used the previous research to analyze my empirical material. Previous research describing various approaches to working with conflicts. I have also used the book Solution -oriented pedagogy as a tool to analyze my material. The study shows that it seems as the most important thing in one's work with conflict, is the way a teacher look at and relate to a conflict. Many of the teacher see a conflict as something constructive and positive. There is a different approach and strategies in the way the different pre-schoolteachers work and help the kids to take on and resolve a conflict. The similarities in the teachers work with conflict is that they find dialogue as an important tool and that the language is important in resolving a conflict.
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Gimeno, i. Alquézar Joan. "Effective methods for recurrence solutions in delay differential equations." Doctoral thesis, Universitat de Barcelona, 2020. http://hdl.handle.net/10803/668438.
Full textAbstract:
This thesis deals with the jet transport for numerical integrators and
the effective invariant object computation of delay differential
equations.
Firstly we study how automatic differentiation (AD) affects when they
are applied to numerical integrators of ordinary differential
equations (ODEs). We prove that the use of AD is exactly the same as
considering the initial ODE and add new equations to the calculation
of the variational flow up to a certain order.
With this result we propose to detail the effective computation when
these equations are affected by a delay. In particular, the
computation of the stability of equilibrium points, the computation of
periodic orbits as well as their stability and continuation. Similarly
the computation of quasi-orbits periodic and its stability. For such
computations, we avoid the explicit generation of the Jacobian matrix
and we only require the matrix-vector evaluation.
Finally, we cover the existence, uniqueness and numerical computation
of the slowest direction of the stable manifold of a limit cycle of a
state-dependent delay equation differential. The results are
formulated in a posteriori format, which leads to rigorous proofs of
numerical experiments. Specifically our result is applicable when you
have a delayed perturbation and it depends on the state of an ODE in
the plane.
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Łaskawiec, Sebastian. "Effective solutions for high performance communication in the cloud." Rozprawa doktorska, Uniwersytet Technologiczno-Przyrodniczy w Bydgoszczy, 2020. http://dlibra.utp.edu.pl/Content/2268.
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Lampshire, Gregory B. "Review of random media homogenization using effective medium theories." Thesis, Virginia Tech, 1992. http://hdl.handle.net/10919/40659.
Full textAbstract:
<p>Calculation of propagation constants in particulate matter is an important aspect of wave
propagation analysis in engineering disciplines such as satellite comnlunication, geophysical
exploration, radio astronomy and material science. It is important to understand why different
propagation constants produced by different theories are not applicable to a particular problem.
Homogenization of the random media using effective medium theories yields the effective
propagation constants by effacing the particulate, microscopic nature of the medium. The
Maxwell-Gamet and Bruggeman effective medium theories are widely used but their limitations
are not always well understood.</p>
<p>
In this thesis, some of the more complex homogenization theories will only be partially
derived or heuristically constructed in order to avoid unnecessary mathematical complexity
which does not yield additional physical insight. The intent of this thesis is to elucidate the
nature of effective medium theories, discuss the theories' approximations and gain a better
global understanding of wave propagation equations. The focus will be on the Maxwell-Garnet
and Bruggeman theories because they yield simple relationships and therefore serve as anchors
in a sea of myriad approximations.</p><br>Master of Science
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Kunze, Kerstin Elena. "Cosmological solutions of four dimensional low energy effective string theory." Thesis, University of Sussex, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390080.
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Hornsby, Peter M. "Effective component-based solutions to problems : reusing components and designs." Thesis, Loughborough University, 2003. https://dspace.lboro.ac.uk/2134/34880.
Full textAbstract:
Computers are useful problem-solving tools, and they are most effective when they are programmed to address a particular problem. Programming is however an activity that is restricted to a very small group of specialists, usually with years of training. Within this specialism, component reuse is regarded as an important technique, but one that is difficult to achieve in practice. The existing development community has already invested considerable time and money in learning software development skills, and is unlikely to invest further in learning a significantly different skill. It seems reasonable therefore that effective techniques for component reuse will need to be based on existing skills, and must keep the additional workload of component reuse as small as possible. The work described in this thesis is an investigation of techniques which might meet this requirement and which are based on an understanding of the holistic human-computer problem solving system. Here, both the requirements of the computer as an information processing system, and the needs of the human problem solver are accounted for and enabled to work together effectively.
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Zanni, Alessandro <1987>. "Middleware Solutions for Effective Cloud-CPS Integration in Pervasive Environment." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amsdottorato.unibo.it/8527/1/AlessandroZanni_Tesi.pdf.
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The proliferation of a wide range of highly different mobile devices, from tiny sensors to powerful smartphone, with increasing connection abilities, has led to the modification of the way we interact with the surrounded environment. It is growing the manifest need of intermediate middleware solutions that can effectively integrate device localities with the global cloud resources, overcoming the issues related to their direct connection.
In this thesis work, the primary objective is to present some promising and feasible real-world solutions, trying to face and cover many different challenges and open-points of the mobile devices applications. The solutions proposed are applied at different levels of the stack, thus dividing them in relation to their internal architectures, in order to underline the intrinsic characteristics associated with the architectural solution, the requirements mainly stressed, and highlighting the most suitable scenarios they can work with. This thesis work aims to push forward the research in the field, mainly based on theoretical architecture and methodological approaches so far, introducing some industrially-relevant implementations, grouped in relation to the specific applications to face, that specifically target the issues of practical feasibility, cost-effectiveness, and efficiency of middleware solutions over easily-deployable environments. The described solutions are specifically designed for the support of mobile services, also in hostile environments, with the main requirements to provide and greatly increase mobile devices requirements. The designs, implementations, and experimental works demonstrate the suitability of the proposed solutions to address several different open points and challenges of mobile devices applications in an efficient and effective way and, also, with applications in large-scale scenarios. Finally, as notable side effect of the present work, the present work present a complete overview of the very recent literature about the intermediate middleware that are emerging.
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Nguyen, Thanh-Nghi. "Modélisation des solutions aqueuses concentrées d’éléments-f par une approche multi-échelle." Thesis, Montpellier, 2015. http://www.theses.fr/2015MONTS249/document.
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Des simulations de dynamique moléculaire classique prenant en compte explicitement la polarisation ont été réalisées afin de déterminer les propriétés structurales et thermodynamiques de solutions binaires aqueuses de chlorure, perchlorate et nitrate d'uranyle (UO2Cl2, UO2(ClO4)2 et UO2(NO3)2). A partir d'une étude faite en fonction de la concentration en sels, les propriétés d'hydratation et les interactions ion-ion des solutions aqueuses concentrées de chlorure, perchlorate et nitrate d'uranyle ont été étudiées. Les simulations de dynamique moléculaire permettent de reproduire les propriétés de solvatation de l'uranyle, du chlorure, du perchlorate et du nitrate en accord avec les données expérimentales. Les résultats ont montré les différents modes de coordination du chlorure et du perchlorate dans la deuxième sphère de coordination de l'uranyle et la présence de l'anion NO3- dans la première sphère de coordination à concentration élevée.De plus, nous avons calculé les potentiels de force moyenne des paires ioniques à dilution infinite en fonction de la distance et de l'angle. Les propriétés thermodynamiques des solutions ont été calculées à partir des potentiels des paires ioniques en utilisant la théorie McMillan-Mayer et moléculaire. La constante d'association des complexes UO2Cl+ (Kcal =2,52 L mol−1), UO2ClO4+ (Kcal =2,34 L mol−1) et UO2NO3+ (Kcal =3,02 L mol−1) a été calculée et sont en accord avec les données expérimentales. A partir des potentiels effectifs de McMillan-Mayer et en utilisant une approche multi-échelle basée sur l'approximation MSA, nous avons également calculé les coefficients osmotiques<br>Classical molecular dynamics simulations with explicit polarization have been successfully used to determine the structural and thermodynamic properties of binary aqueous solutions of uranyl chloride, perchlorate and nitrate (UO2Cl2, UO2(ClO4)2 and UO2(NO3)2). From a study performed as a function of the concentration of salts, the hydration properties of solutes and the ion-ion interactions of concentrated aqueous solutions of uranyl chloride, perchlorate and nitrate have been studied. The molecular dynamics simulations allow for reproducing the solvation properties of the hydrated uranyl, chloride, perchlorate and nitrate in good agreement with the experimental data. The results point out different coordination modes of Cl− and ClO4− in the UO22+ second hydration shell and the presence of NO3− anion in the UO22+ first coordination shell at high concentration. The ion – ion interaction properties over water configurations have been studied at different concentrations.Furthermore, we investigated the potential of mean force of ion pairs at infinite dilution as a function of the distance and the angle. The thermodynamical properties of the solutions have been calculated from these effective ion-ion pair potentials thanks to the McMillan-Mayer theory and molecular theory. The association constant of complex UO2Cl+ (Kcal =2,52 L mol−1), UO2ClO4+ (Kcal =2,34 L mol−1) and UO2NO3+ (Kcal =3,02 L mol−1) has been determined and compared to the experimental ones. From the effective McMillan-Mayer potentials and using a multi-scale approach based on the MSA approximation, we also calculated the osmotic coefficients
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Hendricks, Nicolette Rebecca. "The application of high capacity ion exchange adsorbent material, synthesized from fly ash and acid mine drainage, for the removal of heavy and trace metal from secondary Co-disposal process waters." Thesis, University of the Western Cape, 2005. http://hdl.handle.net/11394/1455.
Full textAbstract:
In South Africa, being the second largest global coal exporter, coal mining plays a pivotal role in the growth of our economy, as well as supplying our nation’s ever increasing electricity needs; while also accounting for more than 10% of the 20 x 109 m3 water used annually in the country. Coal mining may thus be classified as a large-scale water user; known to inevitably generate wastewater [acid mine drainage (AMD)] and other waste material, including fly ash (FA). Current and conventional AMD treatment technologies include precipitation–aggregation (coagulation/flocculation) – settling as hydroxides or insoluble salts. The process stream resulting from these precipitation processes is still highly saline, therefore has to undergo secondary treatment. The best available desalination techniques include reverse osmosis (RO), electro dialysis (ED), ion exchange and evaporation. All available treatment methods associated with raw AMD and its derived process stream fall prey to numerous drawbacks. The result is that treatment is just as costly as the actual coal extraction. In addition, remediation only slows the problem down, while also having a short lifespan. Research conducted into converting fly ash, an otherwise waste material, into a marketable commodity has shown that direct mixing of known ratios of FA with AMD to a pre-determined pH, erves a dual purpose: the two wastes (AMD and FA) could be neutralized and produced a much cleaner water (secondary co-disposal [FA/AMD]-process water), broadly comparable to the process water derived from precipitation-aggregation treated AMD. The collected post process solid residues on the other hand, could be used for production of high capacity ion exchange material (e.g. zeolite A, faujasite, zeolite P, etc.). The produced ion exchange material can subsequently be utilized for the attenuation of metal species in neutralized FA/AMDprocess waters.<br>Magister Scientiae - MSc
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Theillière, Mélanie. "Intégration convexe effective." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1342.
Full textAbstract:
Le but de cette thèse est de proposer une version effective de la théorie de l’intégration convexe. Cette théorie, inventée par M. Gromov dans les années 70, permet de résoudre des relations différentielles, i.e. des équations / inéquations aux dérivées partielles. Dans cette thèse, nous introduisons une formule appelée procédé de corrugation. Cette formule peut se substituer à la formule principale de la théorie de l’intégration convexe. L’expression de cette nouvelle formule est particulièrement intéressante pour des relations que nous caractérisons dans cette thèse : les relations de Kuiper. Nous montrons que ce type de relation se rencontre en géométrie différentielle, par exemple pour les immersions, les immersions isométriques et les applications totalement réelles. En particulier, les résultats obtenus dans cette thèse nous permettent de construire directement une nouvelle immersion de RP^2 . Le procédé de corrugation et les relations de Kuiper fournissent également un cadre propice à l’étude des propriétés d’auto-similarités observées dans les constructions de plongements C^1-isométriques d’un tore plat et d’une sphère réduite effectuées par l’équipe Hévéa. Précisément, nous montrons une propriété d’auto-similarité pour des plongements C^1-isométriques totalement réels<br>The aim of this thesis is to propose an effective version of Convex Integration Theory. This theory, developed by M. Gromov in the 70’s, allows to solve differential relations, i.e. partial differential equalities / inequalities. In this thesis, we introduce a formula called Corrugation Process. The key formula of the Convex Integration Theory can be substituted by this new formula. The expression of the Corrugation Process is interesting for the relations characterized in this thesis: the Kuiper relations. We show that this kind of relation appears in differential geometry, for example for immersions, for isometric immersions and for totally real maps. In particular, the results obtained in this thesis allow to build directly a new immersion of RP^2. The Corrugation Process and the notion of Kuiper relation offer a natural framework to study potential self-similarity properties. Such properties were already observed for the C^1-isometric embedding of a flat torus and of a reduced sphere built by the Hevea team. Precisely, in this thesis, we show a self-similarity property for some C^1-isometric totally real embeddings
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Hammarin, Gabriella. "Effective Internal IT-development at Nordea Portfolio and Advisory Solutions Including Offshoring." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-181364.
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Modern organizations within IT-developing needs to be prepared to face challengesthat are not necessarily connected to the mere technological aspects of softwares.These challenges might lie within e. g. communication between stakeholders, userinvolvement, organizational regulations, the need for standards and maintainability ofthe products. This study is investigating the software development at one of thevarious IT-departments at Swedish bank Nordea, in order to point out the mostinteresting areas of improvement. Many different tools, standards, organizationalprocesses and methodologies are available to the developers, whereof some of themmight be inhibitory rather than enhancing the effectiveness. Nordea is also having anoffshoring-oriented strategy, having development resources located in India. Thediscussion is concerned with modern methodologies such as Scrum and other agiledevelopment concepts, and their use in a geographically dispersed context and withina non-agile organization.
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Javed, Yousra. "Towards Effective Third-Party Application Dialogs| Solutions for Improved Attention and Comprehension." Thesis, The University of North Carolina at Charlotte, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10618024.
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<p> Computer security dialogs communicate important information to users. One avenue where such dialogs are presented are third-party applications, which play an important role in enhancing a user's experience and are popular in online social networks and smartphones. The first category presented by these applications are the permission authorization dialogs that request access to user information. The second category are the terms and conditions dialogs that describe the applications' policies regarding user information. </p><p> Research has demonstrated that users have a strong tendency to ignore security dialogs, resulting in uninformed decisions. Unlike physical warnings, whose design and use is regulated by law and based on years of research, computer security dialogs are often designed in an arbitrary manner. This research examines two human factors that cause users to ignore these dialogs. Habituation—a key factor behind users' inattention towards dialogs—is a form of learning in which an organism decreases or ceases to respond to a stimulus after repeated presentations. User mental models, the second factor, are an integral part of what drives their behavior. Based on their limited understanding, users form incorrect perceptions about how their information is accessed and used. </p><p> This dissertation proposes solutions that address human factors in third-party application dialogs and conducts user experiments to evaluate them. It makes three contributions to improve third-party application dialogs regarding two information processing stages of the human in the loop framework: (1) attention switch and maintenance, and (2) comprehension. </p><p> The first contribution proposes two new dialog designs to improve attention and resist habituation towards permission authorization dialogs presented by third-party applications on a popular online social network, Facebook. The first design investigates the use of animation. It uses a real-life analogy and leverages the end-user's personal information examples to communicate the potential information disclosure in the event of permission authorization. The second design uses eye-gaze data from the eye-tracker as a mechanism of ensuring that the user reads the requested permissions before authorizing access to sensitive information. </p><p> The second contribution investigates advertisements as a potential environmental stimulus that can impede user attention towards the authorization dialog. A user experiment is conducted on the mockup of a popular gaming website to measure user attention in the presence and absence of advertisements comprising of four types of content, namely, food, shopping, politics, and sports. </p><p> The third contribution focuses on improving comprehension of the terms and conditions dialog, specifically the dialog displayed by Touch ID-enabled iOS applications. First, the potential misconceptions regarding Touch ID-based authentication with third-party applications are investigated. Second, four dialog designs are proposed to improve comprehension of the Touch ID terms and conditions dialog, specifically the information related to discovered misconceptions of fingerprint data access, application account access by others, and the role of fingerprint in Touch ID-based sign-in.</p><p>
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Zhu, Hongwei. "Effective information integration and reutilization : solutions to technological deficiency and legal uncertainty." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/34485.
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Thesis (Ph. D.)--Massachusetts Institute of Technology, Engineering Systems Division, Technology, Management, and Policy Program, February 2006.<br>"September 2005."<br>Includes bibliographical references (p. 141-148).<br>The amount of electronically accessible information has been growing exponentially. How to effectively use this information has become a significant challenge. A post 9/11 study indicated that the deficiency of semantic interoperability technology hindered the ability to integrate information from disparate sources in a meaningful and timely fashion to allow for preventive precautions. Meanwhile, organizations that provided useful services by combining and reusing information from publicly accessible sources have been legally challenged. The Database Directive has been introduced in the European Union and six legislative proposals have been made in the U.S. to provide legal protection for non-copyrightable database contents, but the Directive and the proposals have differing and sometimes conflicting scope and strength, which creates legal uncertainty for valued-added data reuse practices. The need for clearer data reuse policy will become more acute as information integration technology improves to make integration much easier. This Thesis takes an interdisciplinary approach to addressing both the technology and the policy challenges, identified above, in the effective use and reuse of information from disparate sources.<br>(cont.) The technology component builds upon the existing Context Interchange (COIN) framework for large-scale semantic interoperability. We focus on the problem of temporal semantic heterogeneity where data sources and receivers make time-varying assumptions about data semantics. A collection of time-varying assumptions are called a temporal context. We extend the existing COIN representation formalism to explicitly represent temporal contexts, and the COIN reasoning mechanism to reconcile temporal semantic heterogeneity in the presence of semantic heterogeneity of time. We also perform a systematic and analytic evaluation of the flexibility and scalability of the COIN approach. Compared with several traditional approaches, the COIN approach has much greater flexibility and scalability. For the policy component, we develop an economic model that formalizes the policy instruments in one of the latest legislative proposals in the U.S. The model allows us to identify the circumstances under which legal protection for non-copyrightable content is needed, the different conditions, and the corresponding policy choices.<br>(cont.) Our analysis indicates that depending on the cost level of database creation, the degree of differentiation of the reuser database, and the efficiency of policy administration, the optimal policy choice can be protecting a legal monopoly, encouraging competition via compulsory licensing, discouraging voluntary licensing, or even allowing free riding. The results provide useful insights for the formulation of a socially beneficial database protection policy.<br>by Hongwei Zhu.<br>Ph.D.
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Snellings, Christopher. "Effective Network Partitioning to Find MIP Solutions to the Train Dispatching Problem." VCU Scholars Compass, 2013. http://scholarscompass.vcu.edu/etd/3285.
Full textAbstract:
Each year the Railway Applications Section (RAS) of the Institution for Operations Research and the Management Sciences (INFORMS) posits a research problem to the world in the form of a competition. For 2012, the contest involved solving the Train Dispatching Problem (TDP) on a realistic 85 edge network for three different sets of input data. This work is an independent attempt to match or improve upon the results of the top three finishers in the contest using mixed integer programming (MIP) techniques while minimizing the use of heuristics. The primary focus is to partition the network in a manner that reduces the number of binary variables in the formulation as much as possible without compromising the ability to satisfy any of the contest requirements. This resulted in the ability to optimally solve this model for RAS Data Set 1 in 29 seconds without any problem-specific heuristics, variable restrictions, or variable fixing. Applying some assumptions about train movements allowed the same Data Set 1 solution to be found in 5.4 seconds. After breaking the larger Data Sets 2 and 3 into smaller sub-problems, solutions for Data Sets 2 and 3 were 28% and 1% better, respectively, than those of the competition winner. The time to obtain solutions for Data Sets 2 and 3 was 90 and 318 seconds, respectively.
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COLELLA, FELICIANO. "Fault-tolerant networks: fast and effective solutions in centralized and distributed settings." Doctoral thesis, Gran Sasso Science Institute, 2018. http://hdl.handle.net/20.500.12571/9685.
Full textAbstract:
Nowadays there is an increasing demand for an efficient and resilient information exchange in communication networks. This means to design, on the one
hand, a logical structure onto a given communication infrastructure, which optimizes some sought routing protocol in the absence of failures. On the other
hand, to make such a structure resistant against possible link/node malfunctioning, by either adding to it a set of redundant links, which will enter into
operation as soon as a failure takes place, or by modifying the existing protocols in order to be able to deal with any malfunctions. Therefore, in the recent
past, a lot of work has been done towards the designing of network structures
and protocols as reliable as possible. Many different approaches and solutions
has been devised, in a broad assortment of settings. The aim of this thesis is
to tackle a couple of this settings and solve some new problems and improve
some existing results. More in detail we focus on a particular class of problems
arising in the centralized setting, namely, the all-best-swap-edge problems. In
this case, we want to be able to find a substitute for any link in a tree-based
network, that will enter into operation after any malfunction of the original
link. Furthermore, we show a result on a problem that belong to the converse
setting, the distributed one. In particular, we propose an approximate faulttolerant path-reporting labeling scheme, based on the so-called 2-Hop Cover
strategy. In this case, we want to be able to efficiently find a path within a
network, even in the presence of a certain set of malfunctions, without using a
centralized computation.
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Monchalin, Lisa A. "Reducing Crime Affecting Urban Aboriginal People: The Potential for Effective Solutions in Winnipeg." Thesis, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/20579.
Full textAbstract:
This study examined the knowledge relevant to reducing crime affecting urban Aboriginal people through a risk-focused approach to prevention and a growing body of knowledge about how it gets implemented. It then examined this knowledge in a case study of its application in Winnipeg.
Interviews were undertaken using a structured questionnaire with program stakeholders and policy planners involved in crime prevention initiatives, programming and policy in Winnipeg. Approximately half of the stakeholders were involved primarily with Aboriginal people and the other half were involved with programs that included both Aboriginal people and non-Aboriginal people. The interviews took place from September to November 2009.
The interviews show that many stakeholders agree with the risk-focused prevention literature on risk factors and that there are prevention programs operating in Winnipeg serving at-risk Aboriginal people. Therefore, there exists the possibility of reducing crime given that they are tackling risk factors in a way which is consistent with crime prevention research.
However, when the interviews turned to issues of implementation, it showed:
• There is no responsibility centre to mobilize different sectors to tackle crime
• Many programs are not implemented comprehensively
• There is a lack of localized coordinated action (including support from the police chief and public engagement)
• There is a lack of political leadership
• There is no city-wide strategic plan, and
• Programs are in constant competition for funding in order to continue operations.
If we are to reduce the disproportionate rates of victimization and offending affecting urban Aboriginal peoples, we need to find more effective ways to implement the strategies that are proven to tackle risk factors. There must be support from the mayor and police chief, training and capacity development, and public engagement which fosters strong use of proven strategies. A responsibility centre with Aboriginal representation must be created. Funding must be expanded to support the community based organizations that are tackling established risk factors. Finally, sustained and adequate funding must be provided to these programs and the responsibility centre.
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Sviercoski, Rosangela. "Multiscale Analytical Solutions and Homogenization of n-Dimensional Generalized Elliptic Equations." Diss., The University of Arizona, 2005. http://hdl.handle.net/10150/194912.
Full textAbstract:
In this dissertation, we present multiscale analytical solutions, in the weak sense, to the generalized Laplace's equation in Ω ⊂ Rⁿ, subject to periodic and nonperiodic boundary conditions. They are called multiscale solutions since they depend on a coefficient which takes a wide possible range of scales. We define forms of nonseparable coefficient functions in Lᵖ(Ω) such that the solutions are valid for the periodic and nonperiodic cases. In the periodic case, one such solution corresponds to the auxiliary cell problem in homogenization theory. Based on the proposed analytical solution, we were able to write explicitly the analytical form for the upscaled equation with an effective coefficient, for linear and nonlinear cases including the one with body forces. This was done by performing the two-scale asymptotic expansion for linear and nonlinear equations in divergence form with periodic coefficient. We proved that the proposed homogenized coefficient satisfies the Voigt-Reiss inequality. By performing numerical experiments and error analyses, we were able to compare the heterogeneous equation and its homogenized approximation in order to define criteria in terms of allowable heterogeneity in the domain to obtain a good approximation. The results presented, in this dissertation, have laid mathematical groundwork to better understand and apply multiscale processes under a deterministic point of view.
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Kim, Jong Samuel. "A new method of determining the effective surface potential and the mode of double layer interaction in electrolyte solutions." Case Western Reserve University School of Graduate Studies / OhioLINK, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=case1054823567.
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Mian, Muhammad Masoud. "Green Packaging Development. : A way to efficient, effective and more environmental friendly packaging solutions." Thesis, KTH, Hållfasthetslära (Inst.), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-103749.
Full textAbstract:
Growing pressure on the packaging design to enhance the environmental and logistics performance of a packaging system stresses the packaging designers to search new design strategies that not only fulfill logistics requirements in the supply chain, but also reduce the CO 2emissions during the packaging life cycle. This thesis focuses on the packaging design process and suggests some improvements by considering its logistics performance and CO 2emissions. A Green packaging development model was proposed for corrugated box design to explore the inter-dependencies that exist among compressive strength, waste and CO2emissions. The verification of the proposed model unveils the significance of a holistic view of the packaging system in the packaging design process and reveals the importance of packaging design decisions on the logistics performance and CO 2 emissions. The thesis finally concluded that the packaging logistics performance should be considered in a packaging design process to explore the Green packaging design solution.
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Kolanka, Varun Kiran. "Cost Effective Synthesis of Ionic Liquids and Their Thermal Properties." TopSCHOLAR®, 2014. http://digitalcommons.wku.edu/theses/1398.
Full textAbstract:
Ionic liquids (ILs) are liquid organic salts at room temperature which are composed of only ions (cations and anions). Ionic liquids are regarded as “novel solvents” and have been gaining attention as alternatives to volatile molecular organic solvents. Ionic liquids have outstanding properties, such as negligible vapor pressure (no or limited evaporation or volatilization), low melting point, thermal stability, and ionic conductivity. They can be used in efficient and clean energy production and storage. The synthesis of the low-cost and performance-effective ionic liquids using inexpensive raw materials is presented and characterized. Characterization was done using Thermogravimetric Analysis (TGA), Fourier Transform Infrared Spectroscopy (FTIR), and Scanning Differential Thermometry (DSC-TGA). Cost effective ionic liquids were synthesized and characterized and then compared to commercially available ionic liquids. Results for newly synthesized ionic liquids suggest that these cost effective ionic liquids were electroconductive and thermally stable when compared to the raw materials used for synthesis of ionic liquids. The thermal stability of these ionic liquids was less, however, when compared to the regular higher cost ionic liquids. FTIR characterization also provided secondary evidence on expected functional groups of newly synthesized ionic liquids. Viscosity of the syntehsized ionic liquids was higher when comapred to the commercially avaialable ionic liquids.
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Al-Turki, R. A. "Effective collaborative working between nurses in a multicultural setting in Saudi Arabia : barriers and solutions." Thesis, University of Salford, 2019. http://usir.salford.ac.uk/49579/.
Full textAbstract:
<em>Research Aim</em> The chief aim of this Saudi-based study is to provide an in-depth understanding of how nurses and nurse managers perceive culture and effective and ineffective collaborative working in a highly multicultural healthcare setting. <em>Methods</em> A qualitative case study approach was used. Eighteen semi-structured interviews were conducted to better understand how nurses and nurse managers perceive culture and how this impacts effective and ineffective collaborative working in a large hospital in Riyadh in the Kingdom of Saudi Arabia (KSA). A literature review guided the development of an interview schedule, underpinned by the Purnell Competence Model (Purnell, 2002). The results of all interview data were collected, transcribed, and analysed inductively and deductively. <em>Principal Findings</em> Fourteen items in total from the in-depth semi-structured interview can help to identify the barriers and facilitators of multicultural nurses working together. The Purnell Model proved its efficiency to be used for multicultural nurses' collaboration in a Saudi hospital, but a further three themes emerged beyond the Purnell Model of Cultural Competence to better describe the current case study. <em>Conclusions </em> In order for optimal healthcare to be provided by multicultural nurses, it is essential that they collaborate effectively. This can be accomplished through appropriate practices, training, education, and research, as well as professional and self-awareness through cultural competence; publicising ethical guidelines and enacting regulation by the Ministry of Health in KSA. <em>Importance and Relevance</em> This study is the first study to describe the barriers and facilitators of multicultural nurses working together in any context and specifically in a KSA context. There have been no studies into the barriers and facilitators in a Saudi context. Therefore, the academic contribution of this thesis will help to fill the gap in knowledge. A few studies have previously been conducted in Saudi Arabia, but these focus on barriers to nurse-patient relationships, rather than multicultural nurses working together. The results of this thesis will inform the future multicultural nursing workforce collaboration strategies of the KSA Ministry of Health and ultimately impact on patient care through better working relationships.