969 resultados para Stream Cipher, Implementation, Intel Pentium 4, Dragon, HC-256


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The Board of Management (the Board) must undertake an annual review of the school’s anti-bullying policy and its implementation. The following checklist must be used for this purpose. The checklist is an aid to conducting this review and is not intended as an exhaustive list. In order to complete the checklist, an examination and review involving both quantitative and qualitative analysis, as appropriate across the various elements of the implementation of the school’s anti-bullying policy will be required.

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Los avances tecnológicos y la entrada a una nueva era digital son una realidad presente en todos los aspectos de la sociedad actual. El mundo organizacional se incluye en esta nueva era digital modernizando sus procesos y soportando sus actividades empresariales en tecnologías de la información y comunicaciones. La inclusión en la era digital por parte de las organizaciones es un paso importante que se debe dar para obtener los crecientes beneficios que la tecnología ofrece. Esta transformación organizacional hacia la implementación de herramientas TIC, como soporte del quehacer misional, debe darse bajo unos lineamientos de planeación estratégica e integración organizacional. Este estudio contiene una revisión conceptual con los lineamientos que una empresa debe tener en cuenta al momento de implementar herramientas TIC a sus áreas y actividades. Los hallazgos teóricos planteados son llevados a la realidad estudiando cómo empresas de Bogotá adoptan recursos tecnológicos. Los resultados principales del estudio muestran que la agrupación empresarial clasificada como gran empresa es el segmento que mejor aplica los lineamientos teóricos para la implementación correcta de herramientas TIC en un ambiente organizacional. El segmento de mediana y pequeña empresa da muestras de uso de herramientas TIC, sin embargo se nota una debilidad en la falta de planeación estratégica e integración de estos recursos tecnológicos al sistema organizacional. Esta investigación concluye mostrando un conjunto de recomendaciones y hallazgos de acuerdo a los datos analizados.

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KIVA is an open Computational Fluid Dynamics (CFD) source code that is capable to compute the transient two and three-dimensional chemically reactive fluid flows with spray. The latest version in the family of KIVA codes is the KIVA-4 which is capable of handling the unstructured mesh. This project focuses on the implementation of the Conjugate Heat Transfer code (CHT) in KIVA-4. The previous version of KIVA code with conjugate heat transfer code has been developed at Michigan Technological University by Egel Urip and is be used in this project. During the first phase of the project, the difference in the code structure between the previous version of KIVA and the KIVA-4 has been studied, which is the most challenging part of the project. The second phase involves the reverse engineering where the CHT code in previous version is extracted and implemented in KIVA-4 according to the new code structure. The validation of the implemented code is performed using a 4-valve Pentroof engine case. A solid cylinder wall has been developed using GRIDGEN which surrounds 3/4th of the engine cylinder and heat transfer to the solid wall during one engine cycle (0-720 Crank Angle Degree) is compared with that of the reference result. The reference results are nothing but the same engine case run in the previous version with the original code developed by Egel. The results of current code are very much comparable to that of the reference results which verifies that successful implementation of the CHT code in KIVA-4.

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KIVA is a FORTRAN code developed by Los Alamos national lab to simulate complete engine cycle. KIVA is a flow solver code which is used to perform calculation of properties in a fluid flow field. It involves using various numerical schemes and methods to solve the Navier-Stokes equation. This project involves improving the accuracy of one such scheme by upgrading it to a higher order scheme. The numerical scheme to be modified is used in the critical final stage calculation called as rezoning phase. The primitive objective of this project is to implement a higher order numerical scheme, to validate and verify that the new scheme is better than the existing scheme. The latest version of the KIVA family (KIVA 4) is used for implementing the higher order scheme to support handling the unstructured mesh. The code is validated using the traditional shock tube problem and the results are verified to be more accurate than the existing schemes in reference with the analytical result. The convection test is performed to compare the computational accuracy on convective transfer; it is found that the new scheme has less numerical diffusion compared to the existing schemes. A four valve pentroof engine, an example case of KIVA package is used as application to ensure the stability of the scheme in practical application. The results are compared for the temperature profile. In spite of all the positive results, the numerical scheme implemented has a downside of consuming more CPU time for the computational analysis. The detailed comparison is provided. However, in an overview, the implementation of the higher order scheme in the latest code KIVA 4 is verified to be successful and it gives better results than the existing scheme which satisfies the objective of this project.