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Автор: Grafiati
Опубліковано: 30 травня 2022
Оновлено: 31 травня 2022

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Статті в журналах з теми "General Purpose Simulation System"

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Acs, Gabor, Sandor Doleschall, and Eva Farkas. "General Purpose Compositional Model." Society of Petroleum Engineers Journal 25, no. 04 (August 1, 1985): 543–53. http://dx.doi.org/10.2118/10515-pa.

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Abstract A direct sequential method has been developed to simulate isothermal compositional systems. The solution technique is the same as that of the implicit pressure, explicit saturation (IMPES) method: one pressure is treated implicitly and (instead of the phase saturation) the component masses/moles are treated explicitly. A "volume balance" equation is used to obtain the pressure equation. A weighted sum of the conservation equations is used to eliminate the nonlinear saturation/concentration terms from the accumulation term of the pressure equation. The partial mass/mole volumes are used as "constants" to partial mass/mole volumes are used as "constants" to weight the mass/mole conservation equations. The method handles uniformly a range of cases from the simplified compositional (i.e., black-oil) models to the most complicated multiphase compositional models of incompressible and compressible fluid systems. The numerical solution is based on the integrated finite-difference method that allows one- (1D), two- (2D), and three-dimensional (3D) grids of regular or irregular volume elements to be handled with the same ease. The mathematical model makes it possible to develop modular versatile computer realizations; thus the model is highly suitable as a basis for general-purpose models. Introduction During the last three decades reservoir simulators have been well developed. The enormous progress in computer techniques has strongly contributed to the development of increasingly effective and sophisticated computer models. The key numerical techniques of modeling conventional displacement methods had been elaborated upon by the beginning of the 1970's, and it was possible to develop a single simulation model capable of addressing most reservoir problems encountered. Since the 1970's, however, because of the sharp rise in oil prices, the need for new enhanced recovery processes has forced reservoir-simulation experts to develop newer computer models that account for completely unknown effects of the new displacement mechanisms. The proliferation of recovery methods since the 1970's has resulted in a departure from the single-model concept because individual models tend to be developed to simulate each of the new recovery schemes. This proliferation of models, however, seems to be a less than ideal situation because of the expense involved in the development, maintenance, and applications training for the multiple new models. In addition, when different models are applied to simulate various enhanced recovery methods, no common basis exists to help survey, compare, and thus understand the different recovery mechanisms. The importance of a single, general simulator capable of modeling all or most recovery processes of interest was emphasized by Coats, who worked out a model as a step in this direction. Economic restrictions have also forced various companies to develop multiple-application reservoir models. The multiple-application reservoir simulator (MARS) program presented by Kendall et al. is one realization of the goal: a single program for multiple application. From a mathematical point of view, reservoir simulators consist of a set of partial differential equations and a set of algebraic equations, both with the appropriate initial and boundary conditions. In isothermal cases the partial differential equations, taking into account Darcy's law, describe the mass/mole/normal-volume conservation for each component of the reservoir fluid system. Phase and/or component transport caused by capillarity, gravity, and/or diffusion also can be taken into account. The algebraic equations describe the thermodynamic properties of the reservoir fluid/rock system. The existence of properties of the reservoir fluid/rock system. The existence of local and instant thermodynamic equilibria is a generally accepted assumption of reservoir simulation. This means that the number of mass/mole/normal-volume conservation equations is equal to the number of components used to describe the reservoir fluid/rock system. During the simulation the reservoir examined is divided into volume elements by a 1D, 2D, or 3D grid. Each of the volume elements is characterized by the appropriate reservoir properties and the displacement process is described by properties and the displacement process is described by a series of thermodynamic equilibria for each volume element. The difference between the simulators of conventional and enhanced recovery methods essentially arises from how many components are chosen as a means of appropriately describing the displacement process, and how the thermodynamic equilibria (thermodynamic properties) of the reservoir fluid/rock system are characterized. In cases of conventional technologies a simplified (black-oil) approach of the hydrocarbon system by a pseudogas and a pseudo-oil component generally is accepted, and the pseudo-oil component generally is accepted, and the thermodynamic properties of the given system depend only on the pressure. This approximation made it possible to develop the direct sequential IMPES solution technique, taking into account the advantage of black-oil models wherein the number of components is equal to the number of phases and thus the number of phases is equal to the number of conservation equations. SPEJ P. 543
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Martinez, Julio C., and Photios G. Ioannou. "General-Purpose Systems for Effective Construction Simulation." Journal of Construction Engineering and Management 125, no. 4 (August 1999): 265–76. http://dx.doi.org/10.1061/(asce)0733-9364(1999)125:4(265).

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Baratella, P., B. Cova, M. Damonte, E. Gaglioti, R. Marconato, and P. Scarpellini. "Fast simulation of power system dynamics in a general-purpose simulator." Control Engineering Practice 5, no. 1 (January 1997): 123–29. http://dx.doi.org/10.1016/s0967-0661(96)00216-x.

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Ohmura, Itta, Gentaro Morimoto, Yousuke Ohno, Aki Hasegawa, and Makoto Taiji. "MDGRAPE-4: a special-purpose computer system for molecular dynamics simulations." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372, no. 2021 (August 6, 2014): 20130387. http://dx.doi.org/10.1098/rsta.2013.0387.

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We are developing the MDGRAPE-4, a special-purpose computer system for molecular dynamics (MD) simulations. MDGRAPE-4 is designed to achieve strong scalability for protein MD simulations through the integration of general-purpose cores, dedicated pipelines, memory banks and network interfaces (NIFs) to create a system on chip (SoC). Each SoC has 64 dedicated pipelines that are used for non-bonded force calculations and run at 0.8 GHz. Additionally, it has 65 Tensilica Xtensa LX cores with single-precision floating-point units that are used for other calculations and run at 0.6 GHz. At peak performance levels, each SoC can evaluate 51.2 G interactions per second. It also has 1.8 MB of embedded shared memory banks and six network units with a peak bandwidth of 7.2 GB s −1 for the three-dimensional torus network. The system consists of 512 (8×8×8) SoCs in total, which are mounted on 64 node modules with eight SoCs. The optical transmitters/receivers are used for internode communication. The expected maximum power consumption is 50 kW. While MDGRAPE-4 software has still been improved, we plan to run MD simulations on MDGRAPE-4 in 2014. The MDGRAPE-4 system will enable long-time molecular dynamics simulations of small systems. It is also useful for multiscale molecular simulations where the particle simulation parts often become bottlenecks.
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Oh, Kwang-Jin. "Development of a general purpose molecular simulation system from microscopic to mesoscopic scales." KIPS Transactions:PartD 12D, no. 6 (December 1, 2005): 921–30. http://dx.doi.org/10.3745/kipstd.2005.12d.6.921.

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Laurén, Mika, Giota Goswami, Anna Tupitsina, Suraj Jaiswal, Tuomo Lindh, and Jussi Sopanen. "General-Purpose and Scalable Internal-Combustion Engine Model for Energy-Efficiency Studies." Machines 10, no. 1 (December 30, 2021): 26. http://dx.doi.org/10.3390/machines10010026.

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Hybrid powertrains that combine electric machines and internal-combustion engines offer substantial opportunities to increase the energy efficiency and minimize the exhaust emissions of vehicles and nonroad working machines. Due to the wide range of applications of such powertrains, simulation tools are used to evaluate and compare the energy efficiency of hybrid powertrains for application-specific working cycles in virtual environments. Therefore, the accurate modeling of the powertrain components of a hybrid system is important. This paper presents an agile calculation tool that can generate realistic fuel consumption data of a scalable diesel engine. This method utilizes a simple efficiency model of the combustion and crank train friction model to generate the fuel consumption map in the operating area of a typical diesel engine. The model parameters are calibrated to produce accurate fuel consumption data in the initial phase of system-level simulations. The proposed method is also validated by using three real engine datasets, and the comparison of results is presented.
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Rubin, Barry, and W. Lloyd Buchanan. "A General Purpose Thermal Model." Society of Petroleum Engineers Journal 25, no. 02 (April 1, 1985): 202–14. http://dx.doi.org/10.2118/11713-pa.

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Abstract This paper describes a fully implicit four-phase (oil, water, gas, solid fuel) numerical reservoir model for simulating hot water injection, steam injection, dry combustion, and wet combustion in one, two, or three dimensions and in either a Cartesian, radial, or curvilinear geometry. The simulator rigorously models fluid flow, heat transfer (convective and conductive), heat loss to formation, fluid vaporization/condensation, and chemical reactions. Any number of oil or gas phase components may be specified, along with any number of solid phase components (fuel and catalysts). The simulator employs either D4 Gaussian elimination or powerful incomplete factorization methods to solve the often poorly conditioned matrix problems. An implicit well model is coupled to the simulator, where reservoir unknowns and well block pressures are primary variables. This paper includescomparisons of the numerical model's results with previously reported laboratory physical models' results for steam and combustion and physical models' results for steam and combustion andanalytical solutions to a hot waterflood problem. In addition, an actual field-scale history match is presented for a single-well steam stimulation problem. Introduction Recent papers by Crookston et al., Youngren Rubin and Vinsome, and Coats have outlined the current trend in thermal process simulation. The trend has been the development of more implicit, more comprehensive finite-difference simulators. Youngren describes a model based on a highly implicit steam model. The components representing air and combustion gases are treated explicitly. Burning reactions are handled not through rates but through the assumption of 100% oxygen utilization at the combustion front. Crookston et al. describe a linearized implicit combustion model that can describe the reaction of a predetermined set of gases and oils. Both of these models are predetermined set of gases and oils. Both of these models are multidimensional and do not handle wellbore-reservoir coupling fully implicitly. Rubin and Vinsome describe a fully implicit one-dimensional (ID) combustion tube simulator. Coats 4 describes a fully implicit four-phase multicomponent multidimensional combustion simulator. This model is general in nature except for the wellbore-reservoir coupling. This work describes a general, fully implicit, four-phase, multicomponent, multidimensional steam and combustion simulator that includes a fully implicit well model and a suite of powerful iterative techniques that can be used for the solution of large-scale thermal problems. The following sections of this paper describe the model's fluid and energy flow equations, property package, powerful iterative techniques capable of reliable package, powerful iterative techniques capable of reliable use with steam and combustion problems, fully implicit well model, and equation substitution formulation. Further, a section considering the applications of the model is presented. Mathematical Model The simulator ISCOM rigorously models fluid flow, vaporization/condensation phenomena, and heat transfer and is efficient enough to allow the simulation of realistically large reservoir problems. The formulation allows for any number of chemical components and reactions. The components can exist in any of four phases: oil, water, gas, or solid. A reaction also can occur in any of the above phases. Furthermore, water and any of the oil components can vaporize. The simulator development is based on the following assumptions.The model can operate in one, two, or three dimensions (1D, 2D, or 3D) with variable grid spacing.Cartesian, radial, non-Cartesian (variable-thickness grids), and specific curvilinear grids corresponding to the commonly used well patterns can be used. patterns can be used.The number of components existing in each phase is variable, and the components can be distributed among four phases.The number and type of chemical reactions can be varied.Each layer, well, or block in the reservoir can exhibit different properties (e.g., viscosities, relative permeabilities, and properties (e.g., viscosities, relative permeabilities, and compressibilities) at different times.Wells can operate under specified fluid rates or flowing pressures and are subject to a hierarchy of user-specified constraints.The simulator must be reasonably efficient to handle field-scale simulation economically, without sacrificing accuracy. Grid Generation The model defines a block-centered grid system in 1-, 2-, or 3D, normally based on Cartesian xyz coordinates. Radial geometries are accommodated by internal modification of the gridblock volumes and interblock transmissibilities. For rectangular grids with variable thickness layers, the interblock transmissibilities and gravity head terms are derived from gridblock dimensions and depth from reference. Curvilinear grids are generated by the method of conformal transformation, which yields analytical formulae for potential and stream functions. Two simple patterns are considered: one-eighth of a five-spot and one-eighth of a nine-spot. SPEJ P. 202
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TADA, YASUYUKI. "Real-Time Digital Simulation for Power System. 3-4. FlexRS. A Challenge to Reduce Power System Real-time Simulation Costs by Using General Purpose System." Journal of the Institute of Electrical Engineers of Japan 122, no. 5 (2002): 301–3. http://dx.doi.org/10.1541/ieejjournal.122.301.

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Zeid, Ashraf A., James L. Overholt, and Ronald R. Beck. "Modeling Of Multibody Systems For Controls Using General Purpose Simulation Languages." SIMULATION 62, no. 1 (January 1994): 7–19. http://dx.doi.org/10.1177/003754979406200102.

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Sivachandran R. Perumal, Faizal Baharum, Mohd Nasrun Mohd Nawi, and Mohd Faizal Omar. "Photovoltaic Potential Analysis - Fuel Cell Hybrid Energy System for General-Purpose Building of Laboratory and Offices Using HOMER Software." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 84, no. 2 (July 17, 2021): 63–81. http://dx.doi.org/10.37934/arfmts.84.2.6381.

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This paper presents a performance analysis of the potential study in complementing grid utility supply with the renewable energy system. A general-purpose building consisting of office and laboratory facility has been chosen as a test case with a hybrid system of fuel cell and solar photovoltaic cells installed in addition to the existing grid power supply. HOMER simulation software was used to run the simulations, and the results showed that only the photovoltaic system is more economical to be integrated into the system. Cost-saving from the feed-in-tariff point of view was observed spanning over several years after the initial capital cost was returned.
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Дисертації з теми "General Purpose Simulation System"

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Bishop, John Leslie. "General purpose visual simulation system." Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/44699.

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The purpose of the research described herein is to prototype a software system that aids a simulationist in developing a general purpose discrete event simulation model. A literature review has shown the need for an integrated visual simulation system that provides for the graphical definition and interactive specification of the model while maintaining application independence. The General Purpose Visual Simulation System (GPVSS) prototyped in this research meets this need by assisting a simulationist to: (1) graphically design the model and its M visualization, (2) interactively specify the modelâ s logic, and (3) automatically generate the executable version of the model, while maintaining domain independence. GPVSS is prototyped on a Sun 3/160C computer workstation using the SunView graphical interface. It consists of over 11,000 lines of documented code. GPVSS has been successfully tested in three different case studies that are described in this work.
Master of Science
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Trimeloni, Thomas. "Accelerating Finite State Projection through General Purpose Graphics Processing." VCU Scholars Compass, 2011. http://scholarscompass.vcu.edu/etd/175.

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The finite state projection algorithm provides modelers a new way of directly solving the chemical master equation. The algorithm utilizes the matrix exponential function, and so the algorithm’s performance suffers when it is applied to large problems. Other work has been done to reduce the size of the exponentiation through mathematical simplifications, but efficiently exponentiating a large matrix has not been explored. This work explores implementing the finite state projection algorithm on several different high-performance computing platforms as a means of efficiently calculating the matrix exponential function for large systems. This work finds that general purpose graphics processing can accelerate the finite state projection algorithm by several orders of magnitude. Specific biological models and modeling techniques are discussed as a demonstration of the algorithm implemented on a general purpose graphics processor. The results of this work show that general purpose graphics processing will be a key factor in modeling more complex biological systems.
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Євсєєв, В. В., Н. П. Демська та Ю. М. Олександров. "Моделювання виробничої лінії SMT-монтажу в кібер-фізичних виробничих системах". Thesis, Кременчуцький національний університет імені Михайла Остроградського, 2022. https://openarchive.nure.ua/handle/document/20422.

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Industry 4.0 визначає бачення і принципи функціонування Smart Manufacturing. Таке підприємство використовує модульну структуру, кібер-фізичні системи контролюють фізичні та інформаційні процеси, створюючи своєрідну віртуальну копію реального світу, де приймають децентралізовані рішення. За допомогою Internet of Things (IoT) кібер-фізичні системи з'єднуються і взаємодіють одна з однією та людьми в реальному часі.
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Lin, Jian. "General-purpose user-defined modelling system (GPMS)." Thesis, Lancaster University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335145.

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Jensen, Justin Alain. "A General-Purpose Animation System for 4D." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6968.

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Computer animation has been limited almost exclusively to 2D and 3D. The tools for 3D computer animation have been largely in place for decades and are well-understood. Existing tools for visualizing 4D geometry include minimal animation features. Few tools have been designed specifically for animation of higher-dimensional objects, phenomena, or spaces. None have been designed to be familiar to 3D animators. A general-purpose 4D animation system can be expected to facilitate more widespread understanding of 4D geometry and space, can become the basis for creating unique 3D visual effects, and may offer new insight into 3D animation concepts. We have developed a software package that facilitates general-purpose animation in four spatial dimensions. Standard features from popular 3D animation software have been included and adapted, where appropriate. Many adaptations are trivial; some have required novel solutions. Several features that are possible only in four or more dimensions have been included. The graphical user interface has been designed to be familiar to experienced 3D animators. Keyframe animation is provided by using a set of curves that defines movement in each dimension or rotation plane. An interactive viewport offers multiple visualization methods including slicing and projection. The viewport allows for both manipulation of 4D objects and navigation through virtual 4D space.
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Graas, Estelle Laure. "Exploration of alternatives to general-purpose computers in neural simulation." Thesis, Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/14815.

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Childs, S. O. "Disk quality of service in a general-purpose operating system." Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.597603.

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Users of general-purpose operating systems run a range of multimedia, productivity, and system housekeeping applications. Many of these applications are disk-bound, or have significant disk usage requirements. CPU scheduling is insufficient to ensure reliable performance for such applications, as it cannot control contention for the disk. User-controllable disk scheduling is necessary; the disk scheduler should respect Quality of Service (QoS) specifications defined by users when scheduling disk requests. Disks have a number of distinctive features that influence scheduler design: context-switches that involve seek operations are expensive, disk operations are non-preemptible, and the cost of data transfer varies according to the amount of seek overhead. Any new scheduler must recognise these factors if it is to provide acceptable performance. We present a new disk scheduler for Linux-SRT, a version of Linux with support for CPU QoS. This disk scheduler provides multiple scheduling classes: periodic allocation, static priority, best-effort, and idle. The scheduler makes disk QoS available as a low-level system service, independent of the particular file system used. Applications need not be modified to benefit from disk QoS. The structure of the Linux disk subsystem causes requests from different clients to be executed in an interleaved fashion. This results in many expensive seek operations. We implement laxity, a technique for batching together multiple requests from a single client. This feature that greatly improves the performance of applications performing synchronous I/O, and provides better isolation between applications. We perform experiments to test the effectiveness of our research system in typical scenarios. The results demonstrate that the system can be used to protect time-critical applications from the effects of contention, to regulate low-importance disk-bound tasks, and to limit the disk utilisation of particular processes (allowing resource partitioning). We use the accounting features of our disk scheduler to measure the disk resource usage of typical desktop applications. Based on these measurements, we classify applications and suggest suitable scheduling policies. We also present techniques for determining appropriate parameters for these policies. Scheduling features are of little use unless users can employ them effectively. We extend Linux-SRT's QoS architecture to accommodate control of disk scheduling; the resulting system provides a coherent interface for managing QoS across multiple devices. The disk scheduler exports status information to user space; we construct tools for monitoring and controlling processes' disk utilisation.
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Shah, Akash G. "The Morpheus Visualization System : a general-purpose RDF results browser." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/53183.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2009.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 69-72).
As the amount of information available on the deep web grows, finding ways to make this information accessible is growing increasingly problematic. As some have estimated that the content in the deep web is several orders of magnitude greater than that in the shallow web, there is a clear need for an effective tool to search the deep web. While many have attempted a solution, none have been successful in effectively addressing the problem of deep web searching. The Morpheus project presents a unique approach to the problem as it integrates the deep web with the shallow web while preserving the semantics of the deep web sites it accesses. At the heart Morpheus is its visualization system which allows users to access the deep web information. The visualization system makes use of clustering algorithms, visual information techniques, as well as the semantics of the deep web sites stored by Morpheus to present deep web results to users in an effective manner. User testing was also conducted to identify problematic areas of the system during development as well as to evaluate the usability of the system's design. Results indicate that users find that the Morpheus visualization system is a highly usable and learnable interface for searching the deep web for results as well as for processing those results.
by Akash G. Shah.
M.Eng.
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Carden, Steven James. "A mathematical framework for a general purpose constraint management system." Thesis, University of Leeds, 1998. http://etheses.whiterose.ac.uk/1272/.

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The use of constraints in engineering for designing complex models is very popular. Current constraint solvers are divided into two broad classes: general and domain specific. Those that are general can handle very general constraint problems but are typically slow; while those that are domain specific can handle only a specific type of problem but are typically fast. For example, numerical algorithms are slow but general, whilst local propagation techniques are fast but limited to simple problems. It is generally acknowledged that there is a close coupling between engineering constraints and geometric constraints in the design process and so the solution of constraint problems consisting of engineering and geometric constraints is an important research issue. Some authors attempt to overcome the expressive limitations of domain specific solvers by using hybrid systems which try to find a balance between the speed of domain specific solvers and the generality of general solvers. Previous research at the University of Leeds has led to the development of a number of domain specific solvers that are capable of solving geometric and engineering constraint problems separately. In particular, the Leeds solvers are incremental and can find solutions when a new constraint is added very quickly. This thesis investigates the use of a hybrid of the various Leeds solvers with an aim to interactively solving constraint problems in engineering design, This Hybrid would have the speed advantages of the domain specific solvers and the expressiveness of a more general solver. In order for the hybrid to be constructed, commonalties of existing engineering constraints solvers must be identified. A characterisation of existing constraint solvers leads to the identification of a number of issues that need to be addressed before the hybrid can be built. In order to examine these issues, a framework for the constraint satisfaction process is presented that allows abstractions of constraint definition, constraint representation and constraint satisfaction. Using the constraint satisfaction framework, it is possible to study the quality of solution of constraint solvers. This leads to the identification of important problems in current constraint solvers. The constraint process framework leads to a study of the use of various paradigms of collaboration within the hybrid, such as sequential, parallel and concurrent. The study of the quality of solution allows concrete statements to be made about the hybrid collaborations. A new incremental constraint solver is presented that uses the hybrid collaboration paradigms and provides a first step towards a powerful engineering constraint solver.
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witt, micah. "Proton Computed Tomography: Matrix Data Generation Through General Purpose Graphics Processing Unit Reconstruction." CSUSB ScholarWorks, 2014. https://scholarworks.lib.csusb.edu/etd/2.

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Proton computed tomography (pCT) is an image modality that will improve treatment planning for patients receiving proton radiation therapy compared with the current techniques, which are based on X-ray CT. Images are reconstructed in pCT by solving a large and sparse system of linear equations. The size of the system necessitates matrix-partitioning and parallel reconstruction algorithms to be implemented across some sort of cluster computing architecture. The prototypical algorithm to solve the pCT system is the algebraic reconstruction technique (ART) that has been modified into parallel versions called block-iterative-projection (BIP) methods and string-averaging-projection (SAP) methods. General purpose graphics processing units (GPGPUs) have hundreds of stream processors for massively parallel calculations. A GPGPU cluster is a set of nodes, with each node containing a set of GPGPUs. This thesis describes a proton simulator that was developed to generate realistic pCT data sets. Simulated data sets were used to compare the performance of a BIP implementation against a SAP implementation on a single GPGPU with the data stored in a sparse matrix structure called the compressed sparse row (CSR) format. Both BIP and SAP algorithms allow for parallel computation by creating row partitions of the pCT linear system. The difference between these two general classes of algorithms is that BIP permits parallel computations within the row partitions yet sequential computations between the row partitions, whereas SAP permits parallel computations between the row partitions yet sequential computations within the row partitions. This thesis also introduces a general partitioning scheme to be applied to a GPGPU cluster to achieve a pure parallel ART algorithm while providing a framework for column partitioning to the pCT system, as well as show sparse visualization patterns that can be found via specified ordering of the equations within the matrix.
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Книги з теми "General Purpose Simulation System"

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Kangsun, Lee, Tanaka Satoshi, Park Soo-Hyun, and SpringerLink (Online service), eds. Advanced Methods, Techniques, and Applications in Modeling and Simulation: Asia Simulation Conference 2011, Seoul, Korea, November 2011, Proceedings. Tokyo: Springer Japan, 2012.

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Magnus, Jonsson, Bonnin Jean-Marie, Cherkaoui Soumaya, Aguado Marina, Rico-Garcia Cristina, Ghannoum Hassan, Mehmood Rashid, Vinel Alexey, and SpringerLink (Online service), eds. Communication Technologies for Vehicles: 5th International Workshop, Nets4Cars/Nets4Trains 2013, Villeneuve d’Ascq, France, May 14-15, 2013. Proceedings. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013.

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Cummings, Gerard F. GPSS/PC simulation tutorials: General purpose simulation. Stow,Mass: MINUTEMAN Software, 1986.

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Heiser, Gernot. Design and implementation of a three-dimensional, general purpose semiconductor device simulation. Konstanz: Hartung-Gorre, 1991.

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Fenn, J. C. A general purpose digital filter system for applications in the M.O.D.. Uxbridge: Brunel University, 1989.

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Polites, Michael E. A general-purpose balloon-borne pointing system for solar scientific instruments. [Washington, D.C.]: National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division, 1990.

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Polites, Michael E. A general-purpose balloon-borne pointing system for solar scientific instruments. Huntsville, Ala: George C. Marshall Space Flight Center, 1990.

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Polites, Michael E. A general-purpose balloon-borne pointing system for solar scientific instruments. [Washington, D.C.]: National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division, 1990.

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Alex, Palamides, ed. Control system problems: Formulas, solutions, and simulation tools. Boca Raton, FL: CRC Press, 2011.

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Sokolowski, John A. Handbook of real-world applications in modeling and simulation. Hoboken, N.J: Wiley, 2012.

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Частини книг з теми "General Purpose Simulation System"

1

Leffelaar, P. A., C. Rappoldt, and D. W. G. van Kraalingen. "Simulation using a general purpose computer language." In On Systems Analysis and Simulation of Ecological Processes, 143–68. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4814-6_10.

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Fish, Jacob. "Towards a General Purpose Design System for Composites." In Multiscale Simulations and Mechanics of Biological Materials, 99–115. Oxford, UK: John Wiley & Sons Ltd, 2013. http://dx.doi.org/10.1002/9781118402955.ch6.

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Hauser, R., H. Horner, R. Männer, and M. Makhaniok. "Architectural considerations for NERV — a general purpose neural network simulation system." In Parallelism, Learning, Evolution, 183–95. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/3-540-55027-5_11.

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4

Ragheb, Magdi, Dennis Gvillo, and Henry Makowitz. "Heuristic Simulation of Nuclear Systems on a Supercomputer Using the HAL-1987 General-Purpose Production-Rule Analysis System." In Artificial Intelligence and Other Innovative Computer Applications in the Nuclear Industry, 809–15. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-1009-9_99.

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Weik, Martin H. "general-purpose operating system." In Computer Science and Communications Dictionary, 677. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_7913.

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Li, Ge, Xinyu Yao, and Kedi Huang. "General-Purpose Simulation Management for Satellite Navigation Signal Simulation." In Lecture Notes in Electrical Engineering, 291–99. Boston, MA: Springer US, 2008. http://dx.doi.org/10.1007/978-0-387-74905-1_21.

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Maguire, David J. "ArcGIS: General Purpose GIS Software System." In Encyclopedia of GIS, 25–31. Boston, MA: Springer US, 2008. http://dx.doi.org/10.1007/978-0-387-35973-1_68.

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Kelley, Robert B., Jodi Tsai, Jeff Bethel, and John Peiffer. "CIRSSE General Purpose Gripper and Controller System." In Intelligent Robotic Systems for Space Exploration, 241–55. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3634-5_6.

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9

Mota, S., E. Ros, J. Díaz, and F. de Toro. "General Purpose Real-Time Image Segmentation System." In Reconfigurable Computing: Architectures and Applications, 164–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11802839_23.

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10

Wittenburg, J., U. Wolz, and A. Schmidt. "MESA VERDE — A General-purpose Program Package for Symbolical Dynamics Simulations of Multibody Systems." In Multibody Systems Handbook, 341–60. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-50995-7_20.

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Тези доповідей конференцій з теми "General Purpose Simulation System"

1

Kuhlman, Chris J., V. S. Anil Kumar, Madhav V. Marathe, Henning S. Mortveit, Samarth Swarup, Gaurav Tuli, S. S. Ravi, and Daniel J. Rosenkrantz. "A general-purpose graph dynamical system modeling framework." In 2011 Winter Simulation Conference - (WSC 2011). IEEE, 2011. http://dx.doi.org/10.1109/wsc.2011.6147758.

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"General Purpose Simulation System based on Excel Language." In 19th International Congress on Modelling and Simulation. Modelling and Simulation Society of Australia and New Zealand (MSSANZ), Inc., 2011. http://dx.doi.org/10.36334/modsim.2011.a5.namekawa.

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Song, H. J. "Design of general purpose simulation package of SAR system." In Radar Systems (RADAR 97). IEE, 1997. http://dx.doi.org/10.1049/cp:19971765.

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Duric, M., M. Stanic, I. Ratkovic, O. Palomar, O. Unsal, A. Cristal, M. Valero, and A. Smith. "Imposing coarse-grained reconfiguration to general purpose processors." In 2015 International Conference on Embedded Computer Systems: Architectures, Modeling, and Simulation (SAMOS). IEEE, 2015. http://dx.doi.org/10.1109/samos.2015.7363658.

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Albertsson, L., and P. S. Magnusson. "Using complete system simulation for temporal debugging of general purpose operating systems and workloads." In Proceedings of MASCOTS 2000. Eighth International Symposium on Modeling, Analysis and Simulation and Telecommunication Systems. IEEE, 2000. http://dx.doi.org/10.1109/mascot.2000.876444.

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Duric, Milovan, Oscar Palomar, Aaron Smith, Milan Stanic, Osman Unsal, Adrian Cristal, Mateo Valero, Doug Burger, and Alex Veidenbaum. "Dynamic-vector execution on a general purpose EDGE chip multiprocessor." In 2014 International Conference on Embedded Computer Systems: Architectures, Modeling, and Simulation (SAMOS XIV). IEEE, 2014. http://dx.doi.org/10.1109/samos.2014.6893190.

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7

Szygenda, S. A. "TEGAS2 - Anatomy of a general purpose test generation and simulation system for digital logic." In Papers. New York, New York, USA: ACM Press, 1988. http://dx.doi.org/10.1145/62882.62917.

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8

Federico, L., and A. Russo. "Rotorcraft Trim Analysis Using a General-Purpose Multibody Code." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-66008.

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Анотація:
Rotorcraft dynamics represents a major analytical challenge to aeronautical industry and research centres. Complexities arising from large rigid motions, body elasticity, aerodynamic loads and control systems have to be taken into account in order to ensure the accuracy of a comprehensive analysis. Architected for the nonlinearities associated with large motion in three-dimensional space, the ADAMS general-purpose multibody code allows to automatically formulate and integrate the equations of motion for a wide range of mechanisms, including rotary wing systems (once provided with an aerodynamic force field description). However, the ADAMS simulation system lacks the capability to calculate periodic motions, as required in the helicopter trim analysis and stability evaluation. The prediction of the trimmed periodic motions of the rotor system implies the numerical solution of differential-algebraic boundary value problem. In this work we present a new approach to perform this task inside the ADAMS numerical environment. Thia approach is based on the perturbation of the minimal set of Ordinary Differential Equations (ODEs), being equivalent to the original system of Differential Algebraic Equations (DAEs) which defines the rotorcraft equation of motion. The transformation of DAEs to ODEs is based on the linearization of the local constraint manifold defined by the algebraic constraint equations, as suggested by Maggi in his work [1–3]. The proposed method is quite general and can be used to drive the ADAMS integration scheme within the periodic motion analysis of mechanical systems. The algotithm is adopted to simulate the wind tunnel trim test of a ECD BO105 machscaled model (EU HeliNOVI project [4]). Comparisons between numerical and experimental results are provided.
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Omiciuolo, Manolo, Markus Thiel, Klaus-Peter Forster, Kristin Paetzold, and Roger Forstner. "General purpose modeling and domain specific simulation: A framework for space mechanisms design." In 2015 9th Annual IEEE International Systems Conference (SysCon). IEEE, 2015. http://dx.doi.org/10.1109/syscon.2015.7116849.

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Keramidas, Georgios, Nikolaos Strikos, and Stefanos Kaxiras. "Multicore Cache Simulations Using Heterogeneous Computing on General Purpose and Graphics Processors." In 2011 14th Euromicro Conference on Digital System Design (DSD). IEEE, 2011. http://dx.doi.org/10.1109/dsd.2011.38.

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Звіти організацій з теми "General Purpose Simulation System"

1

Gascoyne, Peter R. A General Purpose Analysis System Based on a Programmable Fluid Processor. Fort Belvoir, VA: Defense Technical Information Center, September 2004. http://dx.doi.org/10.21236/ada429806.

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2

Anderson, David, and Robert Wahbe. A Framework for Multimedia Communication in a General-Purpose Distributed System. Fort Belvoir, VA: Defense Technical Information Center, March 1989. http://dx.doi.org/10.21236/ada631677.

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3

Dr. Robert Westervelt, Dr. William Klein, Dr. Michael Kroupa, Eric Olsson, and Rick Rothrock. A Framework for a General Purpose Intelligent Control System for Particle Accelerators. Phase II Final Report. Office of Scientific and Technical Information (OSTI), June 1999. http://dx.doi.org/10.2172/755942.

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4

Heinz, Brian J., David Richie, Song J. Park, and Dale R. Shires. Real-Time Radio Wave Propagation for Mobile Ad-Hoc Network Emulation and Simulation Using General Purpose Graphics Processing Units (GPGPUs). Fort Belvoir, VA: Defense Technical Information Center, May 2014. http://dx.doi.org/10.21236/ada601670.

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McConaghy, C. F., and P. R. Gascoyne. Development of a General-Purpose Analysis System Based on a Programmable Fluid Processor Final Report CRADA No. TC-2027-01. Office of Scientific and Technical Information (OSTI), September 2017. http://dx.doi.org/10.2172/1399729.

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Erwin, Terry L. Mosquito Information Management Project (MIMP): Application of a Computerized General Purpose Information Management System (SELGEM) to Medically Important Arthropods (Diptera: Culicidae). Fort Belvoir, VA: Defense Technical Information Center, April 1989. http://dx.doi.org/10.21236/ada209220.

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Tsidylo, Ivan M., Serhiy O. Semerikov, Tetiana I. Gargula, Hanna V. Solonetska, Yaroslav P. Zamora, and Andrey V. Pikilnyak. Simulation of intellectual system for evaluation of multilevel test tasks on the basis of fuzzy logic. CEUR Workshop Proceedings, June 2021. http://dx.doi.org/10.31812/123456789/4370.

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The article describes the stages of modeling an intelligent system for evaluating multilevel test tasks based on fuzzy logic in the MATLAB application package, namely the Fuzzy Logic Toolbox. The analysis of existing approaches to fuzzy assessment of test methods, their advantages and disadvantages is given. The considered methods for assessing students are presented in the general case by two methods: using fuzzy sets and corresponding membership functions; fuzzy estimation method and generalized fuzzy estimation method. In the present work, the Sugeno production model is used as the closest to the natural language. This closeness allows for closer interaction with a subject area expert and build well-understood, easily interpreted inference systems. The structure of a fuzzy system, functions and mechanisms of model building are described. The system is presented in the form of a block diagram of fuzzy logical nodes and consists of four input variables, corresponding to the levels of knowledge assimilation and one initial one. The surface of the response of a fuzzy system reflects the dependence of the final grade on the level of difficulty of the task and the degree of correctness of the task. The structure and functions of the fuzzy system are indicated. The modeled in this way intelligent system for assessing multilevel test tasks based on fuzzy logic makes it possible to take into account the fuzzy characteristics of the test: the level of difficulty of the task, which can be assessed as “easy”, “average", “above average”, “difficult”; the degree of correctness of the task, which can be assessed as “correct”, “partially correct”, “rather correct”, “incorrect”; time allotted for the execution of a test task or test, which can be assessed as “short”, “medium”, “long”, “very long”; the percentage of correctly completed tasks, which can be assessed as “small”, “medium”, “large”, “very large”; the final mark for the test, which can be assessed as “poor”, “satisfactory”, “good”, “excellent”, which are included in the assessment. This approach ensures the maximum consideration of answers to questions of all levels of complexity by formulating a base of inference rules and selection of weighting coefficients when deriving the final estimate. The robustness of the system is achieved by using Gaussian membership functions. The testing of the controller on the test sample brings the functional suitability of the developed model.
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Bäumler, Maximilian, Madlen Ringhand, Christian Siebke, Marcus Mai, Felix Elrod, and Günther Prokop. Report on validation of the stochastic traffic simulation (Part B). Technische Universität Dresden, 2021. http://dx.doi.org/10.26128/2021.243.

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Анотація:
This document is intended to give an overview of the validation of the human subject study, conducted in the driving simulator of the Chair of Traffic and Transportation Psychology (Verkehrspsychologie – VPSY) of the Technische Universität Dresden (TUD), as well of the validation of the stochastic traffic simulation developed in the AutoDrive project by the Chair of Automotive Engineering (Lehrstuhl Kraftfahrzeugtechnik – LKT) of TUD. Furthermore, the evaluation process of a C-AEB (Cooperative-Automatic Emergency Brake) system is demonstrated. The main purpose was to compare the driving behaviour of the study participants and the driving behaviour of the agents in the traffic simulation with real world data. Based on relevant literature, a validation concept was designed and real world data was collected using drones and stationary cameras. By means of qualitative and quantitative analysis it could be shown, that the driving simulator study shows realistic driving behaviour in terms of mean speed. Moreover, the stochastic traffic simulation already reflects reality in terms of mean and maximum speed of the agents. Finally, the performed evaluation proofed the suitability of the developed stochastic simulation for the assessment process. Furthermore, it could be shown, that a C-AEB system improves the traffic safety for the chosen test-scenarios.
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Morkun, Volodymyr S., Сергій Олексійович Семеріков, and Svitlana M. Hryshchenko. Use of the system Moodle in the formation of ecological competence of future engineers with the use of geoinformation technologies. Видавництво “CSITA”, 2016. http://dx.doi.org/10.31812/0564/718.

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At present the information and communication technologies in education can be a catalyst in solving important social problems connected with increasing the educational resources and services availability and quality, real and equal opportunities in getting education for citizens despite their residence, social status and income. One of the most important education tasks is to develop students’ active cognitive attitude to knowledge. Cognitive activity in universities is a necessary stage in preparing for further professional life. The solution of task of formation of ecological competence of mining profile engineer requires the reasonable selection of the means of information and communication technologies conducing formation of ecological competence. Pressing task is constructive and research approach to preparation of future engineers to performance of professional duties in order to make them capable to develop engineering projects independently and exercise control competently. The relevance of the material covered in the article, due to the need to ensure the effectiveness of the educational process in the preparation of the future Mining Engineers. We analyze the source with problems of formation of ecological competence. The article focuses mainly general-purpose computer system support learning Moodle, which allows you to organize individual and collective work of students to master the specialized course teaching material used in teaching special course "Environmental Geoinformatics" in the implementation of educational research.
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Apiyo, Eric, Zita Ekeocha, Stephen Robert Byrn, and Kari L. Clase. Improving Pharmacovigilliance Quality Management System in the Pharmacy and Poisions Board of Kenya. Purdue University, December 2021. http://dx.doi.org/10.5703/1288284317444.

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Анотація:
The purpose of this study was to explore ways of improving the pharmacovigilance quality system employed by the Pharmacy and Poisons Board of Kenya. The Pharmacy and Poisons Board of Kenya employs a hybrid system of pharmacovigilance that utilizes an online system of reporting pharmacovigilance incidences and a physical system, where a yellow book is physically filled by the healthcare worker and sent to the Pharmacy and Poisons Board for onward processing. This system, even though it has been relatively effective compared to other systems employed in Africa, has one major flaw. It is a slow and delayed system that captures the data much later after the fact and the agency will always be behind the curve in controlling the adverse incidents and events. This means that the incidences might continue to arise or go out of control. This project attempts to develop a system that would be more proactive in the collection of pharmacovigilance data and more predictive of pharmacovigilance incidences. The pharmacovigilance system should have the capacity to detect and analyze subtle changes in reporting frequencies and in patterns of clinical symptoms and signs that are reported as suspected adverse drug reactions. The method involved carrying out a thorough literature review of the latest trends in pharmacovigilance employed by different regulatory agencies across the world, especially the more stringent regulatory authorities. A review of the system employed by the Pharmacy and Poisons Board of Kenya was also done. Pharmacovigilance data, both primary and secondary, were collected and reviewed. Media reports on adverse drug reactions and poor-quality medicines over the period were also collected and reviewed. An appropriate predictive pharmacovigilance tool was also researched and identified. It was found that the Pharmacy and Poisons Board had a robust system of collecting historical pharmacovigilance data both from the healthcare workers and the general public. However, a more responsive data collection and evaluation system is proposed that will help the agency achieve its pharmacovigilance objectives. On analysis of the data it was found that just above half of all the product complaints, about 55%, involved poor quality medicines; 15% poor performance, 13% presentation, 8% adverse drug reactions, 7% market authorization, 2% expired drugs and 1% adulteration complaints. A regulatory pharmacovigilance prioritization tool was identified, employing a risk impact analysis was proposed for regulatory action.
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