Linearly tapered slot antenna

Design procedure for Linearly Tapered Slot Antennas (LTSA) has been developed and implemented using High Frequency Structure Simulator (HFSS) code based on a finite-element analysis. A CAD study of two variations of a LISA based on either a stripline or a microstrip feed has been carried out. Circular and radial stubs have been considered in these designs for an antenna operating at 10 Ghz. LTSA on a Duroid substrate fed by a stripline has been designed to operate with better than 12 dB return loss. Fabricated antenna was characterized and had even a wider response than the CAD design. Radiation patterns also were measured for this antenna. Furthermore, microstripline-fed LTSA designs were made. Further work on a low temperature co-fired ceramic substrate LTSA antennas and their arrays has been suggested

Kambin's triangle: definition and new classification schema

Kambin's triangle is an anatomical corridor used to access critical structures in a variety of spinal procedures. It is considered a safe space because it is devoid of vascular and neural structures of importance. Nonetheless, there is currently significant variation in the literature regarding the exact dimensions and anatomical borders of Kambin's triangle. This confusion was originally caused by leaving the superior articular process (SAP) unassigned in the description of the working triangle, despite Kambin identifying that structure in his original report. The SAP is the most relevant structure to consider when accessing the transforaminal corridor. Leaving the SAP unassigned has led to an open-handed application of the term "Kambin's triangle." That single eponym currently has two potential meanings, one meaning for endoscopic surgeons working through a corridor in the intact spine and a second meaning for surgeons accessing the disc space after a complete or partial facetectomy. Nevertheless, an anatomical corridor should have one consistent definition to clearly communicate techniques and use of instrumentation performed through that space. As such, the authors propose a new surgically relevant classification of this corridor. Assigning the SAP a border requires adding another dimension to the triangle, thereby transforming it into a prism. The term "Kambin's prism" indicates the assignment of a border to all relevant anatomical structures, allowing for a uniform definition of the 3D space. From there, the classification scheme considers the expansion of the corridor and the extent of bone removal, with a particular focus on the SAP

Development of application for relative sag source location through the use of S Transform

This paper presents an application developed in Matlab for relative sag source location in medium voltage distribution systems. The main objective is the identification of potential users or industrial customers causing sags in a circuit. Application uses topological information of the circuit and works with S-Transform to produce distortion power patterns used to identify direction of sags

Geología-CI62-201301

El estudiante en este curso reconocerá los diferentes tipos de rocas y sus transformaciones por la dinámica externa e interna que sufren ellas en el tiempo geológico. Sobre los diferentes tipos de rocas se construyen todas las obras de Ingeniería Civil. Se dará mucho énfasis sobre la aplicación de la geología a las construcciones de Ingeniería Civil

Geología-CI62-201201

El estudiante en este curso reconocerá los diferentes tipos de rocas y sus transformaciones por la dinámica externa e interna que sufren ellas en el tiempo geológico. Sobre los diferentes tipos de rocas se construyen todas las obras de Ingeniería Civil. Se dará mucho énfasis sobre la aplicación de la geología a las construcciones de Ingeniería Civil

Geología-CI62-201202

El estudiante en este curso reconocerá los diferentes tipos de rocas y sus transformaciones por la dinámica externa e interna que sufren ellas en el tiempo geológico. Sobre los diferentes tipos de rocas se construyen todas las obras de Ingeniería Civil. Se dará mucho énfasis sobre la aplicación de la geología a las construcciones de Ingeniería Civil

Geología-CI62-201302

El estudiante en este curso reconocerá los diferentes tipos de rocas y sus transformaciones por la dinámica externa e interna que sufren ellas en el tiempo geológico. Sobre los diferentes tipos de rocas se construyen todas las obras de Ingeniería Civil. Se dará mucho énfasis sobre la aplicación de la geología a las construcciones de Ingeniería Civil

Geología-CI62-201401

El estudiante en este curso reconocerá los diferentes tipos de rocas y suelos y sus transformaciones por la dinámica externa e interna que sufren ellas en el tiempo geológico

Geología-CI62-201402

El estudiante en este curso conocerá los conceptos básicos de la geología los cuales serán útiles para Ingeniería Civil e Ingeniería de Gestión Minera