Peter the Great vs. Charles XII of Sweden in the Great Northern War

Charles XII, King of Sweden (1682-1718), had the unique ability of imposing his will on any given situation and the equally unique fortune of almost always coming out ahead in the game. He was an absolute monarch with that rare combination of courage and daring, a skilled tactician who excelled on the battlefield. All of Europe marveled at his victories, particularly Narva and his Polish exploits. Each of these remarkable successes was a kind of military education for the young king, but the relative ease with which he triumphed was deceptive in that this string of battles played into a false narrative that he was unbeatable. From the start of the Great Northern War (1700-21), Charles XII’s principle adversary, Peter I of Russia believed this, yet Peter was circumspect. Even after successive defeats, he said, “The Swedes will go on beating us for a long time, but eventually they will teach us how to beat them.” Fortunately for Peter, as it turned out, Charles also thought himself unbeatable and the battle of Poltava (1709) would determine, once and for all, whose version of reality would triumph. By overestimating his own force and underestimating Peter the Great’s oppositional force, Charles XII failed to realistically assess the potential risks and real dangers of his Russian invasion, and this proved to be the main cause of both Charles’s momentous collapse and Peter’s stunning, watershed victory

High Performance Electronics for Alignment Regulation on the CLIC 30GHz modules

The general outline of the High Performance Electronics for the Alignment System of the linear collider CLIC is presented. What is also shown are its most important characteristics. The main objective is to have a global view of the problems and the solutions found. The details of each of the subsystems and boards that compose the electronics will be published later

Truth, Knowledge & Storytelling: Postcolonial Aspects of Epistemological Problems in the Works of Gabriel García Márquez

The purpose of this thesis is to explore epistemological problems in various works of Gabriel García Márquez. Understanding and questioning who tells the story and who has the right to tell the story is an important question that guides this project. Through understanding important historical events of Colombia like the Banana Massacre and key events within One Hundred Years of Solitude different epistemological issues become apparent. The question of representation and who tells the story matters because it greatly affects the story that is told. Countries and people who have been stripped or denied a voice often face challenges in gaining one or never do. This means that they are then not represented in any way. García Márquez reclaims the history of Colombia by presenting a story that had previously not been shared and therefore helps to give representation back to his own country

Analysis of drawbacks and constraints of classification algorithms for three-phase voltage dips

Voltage events are one of the most common and harmful disturbances of power electric systems. Voltage dips, swells and interruptions are included under this heading. Given the economic cost that these disturbances represent for electrical power transmission and distribution companies and the industry, it becomes imperative to detect and classify them properly. Several classification criteria and algorithms have been proposed in the literature as analysis tools to differentiate voltage events by their characteristics and, if possible, to determine their causes and consequences. Even though some of these approaches make a correct classification of the voltage events, there are certain operation conditions that are common in real electrical grids, in which the classification criteria, and their corresponding algorithms, make a wrong classification. These particular conditions, together with the lack of a fair comparison in a common scenario, have not been addressed in the specific field literature. This work explores in detail all these aspects by evaluating the symmetrical components criterion and ABC classification criterion, and rigorously analyzes three specific algorithms: the Symmetrical Components Algorithm, the Six Phases Algorithm and the Space Vector Algorithm. Drawbacks arise from both classification criteria and algorithms. The causes of the classification errors are described and discussed in detail in order to better understand the problem, and evidence the constraints of these classification methods.Fil: Strack, Jorge Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Científicas y Tecnológicas en Electrónica. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones Científicas y Tecnológicas en Electrónica; ArgentinaFil: Carugati, Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Científicas y Tecnológicas en Electrónica. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones Científicas y Tecnológicas en Electrónica; ArgentinaFil: Orallo, Carlos Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Científicas y Tecnológicas en Electrónica. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones Científicas y Tecnológicas en Electrónica; ArgentinaFil: Donato, Patricio Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Científicas y Tecnológicas en Electrónica. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones Científicas y Tecnológicas en Electrónica; ArgentinaFil: Maestri, Sebastian Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Científicas y Tecnológicas en Electrónica. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones Científicas y Tecnológicas en Electrónica; ArgentinaFil: Carrica, Daniel Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Científicas y Tecnológicas en Electrónica. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones Científicas y Tecnológicas en Electrónica; Argentin

Coupled computational fluid mechanics/multibody dynamics approach for naval applications

The multibody dynamics (MBD) solver MagnusDyn and the computational fluid dynamics (CFD) code REX, both developed at the University of Iowa, are implicitly coupled. MagnusDyn can solve bodies connected through a variety of joints and cables, while REX is a dynamic overset naval hydrodynamics code with extensive capabilities for motions of surface and underwater vehicles including waves, autopilots and wind. The implementation adds capability to simulate at-sea operations, like takeoff and landing of manned and unmanned aircraft, deployment and recovery of service watercraft, etc. In these maneuvers, interaction between vessels occurs through connecting cables or direct contact. The paper describes the strategy to couple the solvers and presents validation and demonstration cases, including the relaxation of a buoy, and deployment and recovery of an unmanned underwater vehicle.Publicado en: Mecánica Computacional vol. XXXV, no. 15Facultad de Ingenierí

Coupled computational fluid mechanics/multibody dynamics approach for naval applications

The multibody dynamics (MBD) solver MagnusDyn and the computational fluid dynamics (CFD) code REX, both developed at the University of Iowa, are implicitly coupled. MagnusDyn can solve bodies connected through a variety of joints and cables, while REX is a dynamic overset naval hydrodynamics code with extensive capabilities for motions of surface and underwater vehicles including waves, autopilots and wind. The implementation adds capability to simulate at-sea operations, like takeoff and landing of manned and unmanned aircraft, deployment and recovery of service watercraft, etc. In these maneuvers, interaction between vessels occurs through connecting cables or direct contact. The paper describes the strategy to couple the solvers and presents validation and demonstration cases, including the relaxation of a buoy, and deployment and recovery of an unmanned underwater vehicle.Publicado en: Mecánica Computacional vol. XXXV, no. 15Facultad de Ingenierí

Contribución al estudio de lesiones cancerizables de la mucosa bucal en pacientes de zonas de hidroarsenicismo cronico regional endemico (H.A.C.R.E.)

Estudios previos han mostrado una elevada prevalencia de lesiones cancerizables como así también de cáncer cutáneo en áreas arsenicales. El propósito de este trabajo es comparar la prevalencia de leucoplasia, liquen plano y queratosis en pacientes que han bebido agua con elevado contenido de arsénico (más de 13 p.p.m.) por más de 10 años. Con esta finalidd nosotros estudiamos 304 pacientes con lesiones orales que residían en zonas rurales con similares características climáticas y socioeconómicas. Los pacientes fueron divididos en dos grupos iguales: grupo de área arsenical (AS) y grupo del área referente a edad, sexo, raza y consumición de tabaco y alcohol. Los examinadores usaron el mismo criterio para estudiar todos los pacientes. Es necesario enfatizar que se observaron cantidades similares de lesiones estomatológicas en ambos grupos, 255 en AS y 249 en NAS.Fil: Carrica, Victoriano. Universidad Nacional de Córdoba. Facultad de Odontología; Argentina

Active Alignment Electronic System for CLIC 30 GHz Modules in CTF2

The active alignment system is capable of positioning accelerator components of CLIC (Compact Linear Collider) with a precision of a few microns. An electronic processing and command system connects the micro-movers and sensors of this system to the CERN-PS complex control system