Articles — Project / Lab Report

A dual energy radiography method using basis decomposition was developed, the process to do it is shown and it is compared against an alternate more direct method of analyzing the data using the logarithm of the original data, concluding that this second method does work but it is not better than basis decomposition.

Transferencia de calor en intercambiadores depasos múltiples

Physics being an experimental science, we sought to learn how to prepare a lab and perform as a team accounting for errors and uncertainties and to reduce them. We gathered values for volume using Micrometer, gathered information on acceleration, velocity, and created a histogram using a PASCO motion sensor. A jumping experiment was also performed with a human and the motion sensor. Our main goal was to test the effects of human error and eliminating mechanical error.

tratamientos de aguas tanto negras como residuales y su importancia

Computer algorithms that are written with the intent to keep data private are used in every day cryptography. These algorithms may exhibit execution time behaviour which is dependant on secret information that is not known to an outsider. When carefully analysed, this dependency may leak information that can be used to gain unintended access to private data, effectively nullifying the use of such algorithms. This threat poses a vital risk to the field of computer cryptography, and analysis should be done in attempt to eradicate this potential threat from any algorithms in modern day use. In this paper, attacks are orchestrated against several algorithms that have previously been used in cryptography, resulting in the successful retrieval of secret data within a manageable time-scale.

The complete business report acts as proposal ending with a decision on whether the idea is viable or not. A positive conclusion will lead to a suggestion of further investigation within this field. Present day wind turbine faces plenty of maintenances, issues and blade failures, all these problems together are difficult to handle and thereby very costly. That is why this report aims to come up with an idea solution to detect manufacturing errors and faults before installing the wind turbine blades. This business report aims to investigate whether a Manufacturing Scanner has the ability to detect errors and faults in new wind turbine blades. In addition the business report examines if the idea based on a Net Present Value calculation along with a budget is economically beneficial. The business report includes a technical description of an x-ray scanner, materials in wind turbine blades and software detection of anomalies. A business plan is conducted to determine whether the Manufacturing Scanner is a viable business opportunity. The business plan consists of a market analysis, which includes a supply chain, positioning, pricing and customer segments, and furthermore a budget, including a Net Present Value and business case. Based on the investigated areas and the final conclusion, the idea seems viable. The scanner is possible to produce at a reasonable price, the project is economically beneficial and there is a present market potential.

Objetivos: Estudo do movimento oscilatório, oscilações livres não amortecidas e amortecidas, e oscilações forçadas e amortecidas.

Università degli studi di Napoli Federico II Scuola Politecnica e delle Scienze di Base Corso di Laurea Magistrale in Ingegneria Informatica Tesi di Laurea Magistrale in Big Data Analytics and Business Intelligence Artificial Bee Colony Influence Maximization

Con el auge de los sistemas de bases de datos NoSQL los cuales implementan modelos de datos diferentes al relacional como son las bases de datos documentales o de grafos, ha surgido el concepto de Persistencia Políglota. Ésta sostiene que debido a la gran variedad y cantidad de representación de los datos, y los diversos servicios que pueden dar las aplicaciones hoy en día; es necesario el uso de más de un tipo de sistema de almacenamiento para ser capaz de cubrir de forma eficiente todas las necesidades de la aplicación que use dicho sistema. En este trabajo se busca dar una idea general de las Aplicaciones de Persistencia Políglota describiendo las posibles arquitecturas que hacen uso de las bases de datos NoSQL y su funcionamiento, se estudian algunos casos de éxito y se lleva a cabo un caso de estudio usando MongoDB y Neo4j.