Consumer Focus: Getting Static about Your Satellite or Cable TV Complaint?, November 2016

The Attorney General’s Consumer Protection Division receives hundreds of calls and consumer complaints every year. Follow these tips to avoid unexpected expense and disappointments. This record is about: New Credit and Debit Card Chips

Determinación de alturas del cable de guarda para minimizar el número de salidas de una línea de alta tensión de 230kV por descargas atmosféricas

Tesis (Ingeniera Eléctrica).--Universidad de La Salle. Facultad de Ingeniería. Programa de Ingeniería Eléctrica

Dendritic cable with active spines: a modeling study in the spike-diffuse-spike framework

The spike-diffuse-spike (SDS) model describes a passive dendritic tree with active dendritic spines. Spine-head dynamics is modelled with a simple integrate-and-fire process, whilst communication between spines is mediated by the cable equation. Here we develop a computational framework that allows the study of multiple spiking events in a network of such spines embedded in a simple one-dimensional cable. This system is shown to support saltatory waves as a result of the discrete distribution of spines. Moreover, we demonstrate one of the ways to incorporate noise into the spine-head whilst retaining computational tractability of the model. The SDS model sustains a variety of propagating patterns.

Spatio-temporal filtering properties of a dendritic cable with active spines: a modeling study in the spike-diffuse-spike framework

The spike-diffuse-spike (SDS) model describes a passive dendritic tree with active dendritic spines. Spine-head dynamics is modeled with a simple integrate-and-fire process, whilst communication between spines is mediated by the cable equation. In this paper we develop a computational framework that allows the study of multiple spiking events in a network of such spines embedded on a simple one-dimensional cable. In the first instance this system is shown to support saltatory waves with the same qualitative features as those observed in a model with Hodgkin-Huxley kinetics in the spine-head. Moreover, there is excellent agreement with the analytically calculated speed for a solitary saltatory pulse. Upon driving the system with time varying external input we find that the distribution of spines can play a crucial role in determining spatio-temporal filtering properties. In particular, the SDS model in response to periodic pulse train shows a positive correlation between spine density and low-pass temporal filtering that is consistent with the experimental results of Rose and Fortune [1999, Mechanisms for generating temporal filters in the electrosensory system. The Journal of Experimental Biology 202, 1281-1289]. Further, we demonstrate the robustness of observed wave properties to natural sources of noise that arise both in the cable and the spine-head, and highlight the possibility of purely noise induced waves and coherent oscillations.

Cable laying and pulling

The common methods of cable laying are: • Direct in the ground in trenches (underground cables). • In cable trenches in outdoors switchyards. • In cable trays or cable ducts • Fixed with clamps (usually at walls and ceilings). • In conduits.

Estudio retrospectivo del uso de bandas de nylon en cirugía de ovariohisterectomia en caninos y felinos en la ciudad de Bogotá

Tesis (Médico Veterinario). -- Universidad de La Salle. Facultad de Ciencias Agropecuarias. Programa de Medicina Veterinaria, 2014

Estudio del amortiguamiento por fricción seca en aislantes antivibratorios de cable

Las vibraciones son un fenómeno que produce efectos negativos a estructuras, maquinaria y personas, y el aislamiento vibratorio es uno de los métodos de control más utilizado para erradicar sus consecuencias.

Valoración financiera de intangibles en las empresas de televisión por cable.

En el plan de Expansión de la empresa Newels, se identificó la necesidad de realizar una investigación enfocada a recopilar información relacionada a las valoraciones técnicas, procesos o herramientas que el personal estratégico y clave de la compañía tiene en consideración para tomar la decisión de invertir en la adquisición de activos intangibles bajo la modalidad de cuotas de mercado como un requerimiento de la gerencia para realizar la ejecución o no de un proyecto de inversión. La investigación se dirigió al proyecto de inversión para la adquisición de una cuota del mercado de televisión por cable en El Salvador, representado por 1,200 clientes suscriptores en el Departamento de La Unión, los cuales pertenecían a la empresa Multichannel. Bajo este contexto, se desarrolló la investigación en forma descriptiva y explicativa, a través de cuestionarios, con lo cual se realizó un análisis del objeto de estudio, que sirvió de base para la elaboración de cálculos matemáticos. Se utilizaron los métodos de valoración financiera (Flujo Neto de Caja Descontado, el Valor Actual Neto, Tasa Interna de Retorno, el Período de Recuperación, entre otros) analizando el valor de la inversión inicial, así como también los costos asociados para mantener y mejorar el servicio de cable prestado a los clientes, y los beneficios económicos esperados, para una proyección de cinco años (2009-2013) considerando una tasa mínima atractiva de retorno dada por la compañía. Con los resultados obtenidos, se logró determinar que el proyecto es rentable por lo cual se recomendó su ejecución.El presente trabajo de investigación, puede ser utilizado como una herramienta técnica para el personal involucrado en la toma de decisiones en cuanto a llevar a cabo proyectos de inversión en este tipo de activos.

Use of Fiber Reinforced Polymer Composite Cable for Post-tensioning Application

Corrosion of steel tendons is a major problem for post-tensioned concrete, especially because corrosion of the steel strands is often hard to detect inside grouted ducts. Non-metallic tendons can serve as an alternative material to steel for post-tensioning applications. Carbon fiber reinforced polymer (CFRP), given its higher strength and elastic modulus, as well as excellent durability and fatigue strength, is the most practical option for post-tensioning applications. The primary objective of this research project was to assess the feasibility of the use of innovative carbon fiber reinforced polymer (CFRP) tendons and to develop guidelines for CFRP in post-tensioned bridge applications, including segmental bridges and pier caps. An experimental investigation and a numerical simulation were conducted to compare the performance of a scaled segmental bridge model, post-tensioned with two types of carbon fiber strands and steel strands. The model was tested at different prestress levels and at different loading configurations. While the study confirms feasibility of both types of carbon fiber strands for segmental bridge applications, and their similar serviceability behavior, strands with higher elastic modulus could improve structural performance and minimize displacements beyond service loads. As the second component of the project, a side-by-side comparison of two types of carbon fiber strands against steel strands was conducted in a scaled pier cap model. Two different strand arrangements were used for post-tensioning, with eight and six strands, respectively representing an over-design and a slight under-design relative to the factored demand. The model was tested under service and factored loads. The investigation confirmed the feasibility of using carbon fiber strands in unbonded post-tensioning of pier caps. Considering both serviceability and overload conditions, the general performance of the pier cap model was deemed acceptable using either type of carbon fiber strands and quite comparable to that of steel strands. In another component of this research, creep stress tests were conducted with carbon fiber composite cable (CFCC). The anchorages for all the specimens were prepared using a commercially available expansive grout. Specimens withstood 95% of the guaranteed capacity provided by the manufacturer for a period of five months, without any sign of rupture.

An Islanding Detection Method based on Impedance Estimation and Grid Identification for Grid-Tie Distributed Power Generation Systems

Power system policies are broadly on track to escalate the use of renewable energy resources in electric power generation. Integration of dispersed generation to the utility network not only intensifies the benefits of renewable generation but also introduces further advantages such as power quality enhancement and freedom of power generation for the consumers. However, issues arise from the integration of distributed generators to the existing utility grid are as significant as its benefits. The issues are aggravated as the number of grid-connected distributed generators increases. Therefore, power quality demands become stricter to ensure a safe and proper advancement towards the emerging smart grid. In this regard, system protection is the area that is highly affected as the grid-connected distributed generation share in electricity generation increases. Islanding detection, amongst all protection issues, is the most important concern for a power system with high penetration of distributed sources. Islanding occurs when a portion of the distribution network which includes one or more distributed generation units and local loads is disconnected from the remaining portion of the grid. Upon formation of a power island, it remains energized due to the presence of one or more distributed sources. This thesis introduces a new islanding detection technique based on an enhanced multi-layer scheme that shows superior performance over the existing techniques. It provides improved solutions for safety and protection of power systems and distributed sources that are capable of operating in grid-connected mode. The proposed active method offers negligible non-detection zone. It is applicable to micro-grids with a number of distributed generation sources without sacrificing the dynamic response of the system. In addition, the information obtained from the proposed scheme allows for smooth transition to stand-alone operation if required. The proposed technique paves the path towards a comprehensive protection solution for future power networks. The proposed method is converter-resident and all power conversion systems that are operating based on power electronics converters can benefit from this method. The theoretical analysis is presented, and extensive simulation results confirm the validity of the analytical work.

BETWEEN IMAGES AND SCOURGES: THE REGIONAL CABLE VERDEAN MANUEL LOPES

This article aims to analyze the work The flagellates East Wind (1959), Cape Verdean writer Manuel Lopes, highlighting their contribution to the development of Cape Verde literature, from a regionalist perspective. In this work, Manuel Lopes introduces the reader to the hard reality that the panel are subjected the inhabitants of St. Anthony, victims of insular confinement and natural phenomena that afflict the region. Thus, this analysis understand regionalism as a timeless current, as Ligia Chiappini (1995), which does not exclude the universalism of the work and seek to identify the specifics of the landscape, the structure and organization of the Cape Verdean society, customs, cuisine, music, way of speaking as a translation for the construction of national identity. Therefore, we will use as theorists subsidies Manuel Ferreira (1997), Daniel Spínola (1998), Simone Caputo Gomes (2008) (2015), João Paulo Madeira (2014), Maria Aparecida Santilli (1985), Maria Nazareth Soares Fonseca e Terezinha Taborna Moreira (2014), among others.

Intimate Drowning

intimate drowning 50 minute performance + installation work ice | salt | tears | This work is about death. Grief The relationships before The aftermath - of confusion, violence, isolation The never ending questions The devastating loss and paranoia "Since my wife died, I have spent the last six years treading water - trying to stop myself from drowning. Sometimes I catch myself not breathing. I have to remind myself that I can't live underwater no matter how much I want to." Grief. Loss. Tears. Fear. Sadness Water. Milk. Salt. Ice Falling. Waiting Submerged. Suffocated. Broken ties Intention. Lack of focus. Intensity of focus Fighting. Screaming. Wailing Blue. White. Black. Blackness The doors open: we walk through a gauze curtain and discover a dark space with a square of light in the middle of the room. As we walk closer to the light, we see a girl writing in charcoal on the floor around a square box filled with milk. She is writing the same thing over and over. The more she writes the more desperate she becomes: I am listening… We have to keep walking past. She isn’t writing for us. We find our seats Two people: one slowly breaking the hundreds of fragile strings that tie her to the other. The other is pleading with her to stop: Please. Please don’t. Please Avril. …Please don’t One girl facing away from us. She is slowly swimming on the spot without water. Projected next to her are images of her drowning under water. Salt falls in front of her. Behind her. A wall of salt. She is bound to the spot. Underwater and still breathing. Swimming in her own tears. She won’t escape. She wants to stay, but desires nothing Two people standing in a large square box filled with milk. They start in intimacy. The relationship begins to dissolve before us. One fights to be with/on/behind the other. The other fights her off. The milk is splashed. Why aren't they being careful? In the darkness there is scrubbing. Someone is scrubbing the floor. The other girl is on her knees trying to erase the original writing. The traces left behind that we have no control over. We only see her for a second, but hear her in the darkness. Scrubbing. It is pointless. You can't erase the past.