A Coast Guard patrol boat high-frequency (HF) near-vertical incident skywave (NVIS) antenna is selected as a test case to compare the electromagnetic modeling programs Numerical Electromagnetics Code, NEC and WIPL-D code. Differences between the models and program outputs will be presents. The radiation pattern predictions will be compared. Agreement between the results is found to be good. Minor adjustments of the two coordinate systems of the programs are necessary. A summary of the comparison is presents.
Context: The study of nanotechnology has shown great advances, which include research and exploration of the TeraHertz (THz) region, where one of the most common approaches is the use of photoconductive antennas (PCA) due to the intrinsic properties of their emission the non-destructive nature of this type of radiation. Method: This paper describes the concept of antenna its radiation principles, the mathematical foundations, the material used for radiation, and the adjustment of the parameters to find a result of the pulse in THz by using the finite element method, accessible in the COMSOL Multiphysics software. Results: The result of a computational modeling is presented, which studies the behavior of a PCA, where the input of the chosen model corresponds to the geometry and material of the antenna, thus showing the concentration of the electric field in the GAP zone of the dipole and the substrate of the semiconductor. Conclusions: Given the theoretical foundations that describe the behavior of PCAs in THz, it was possible to configure parameters such as the geometry of the antenna, the laser to be used, and the construction materials to achieve the generation of a photocurrent peak in the order of 0,1-1,2 THz.
RESUMENLos eventos de seguridad clínica son un problema que afecta a todas las instituciones de salud, en donde la responsabilidad primera es atribuida al personal de enfermería quienes proporcionan el cuidado directo al paciente las 24 horas del día. En investigaciones recientes y casos de estudio analizados, se presenta en un alto porcentaje tres eventos de riesgo para el paciente, caídas, 1 Doctor en Ingeniería, Magister tecnologías para la educación, Universidad Cooperativa de Colombia, Facultad de Ingeniería, Revista Observatório, Palmas, v. 4, n. 3, p. 458-485, maio. 2018flebitis y úlceras por presión (UPP). El presenta artículo muestra el desarrollo y la validación de una herramienta tecnológica que tiene como objetivo capacitar a estudiantes de enfermería en el manejo de eventos de seguridad en el paciente. La investigación realizada arrojó en una primera fase de diagnóstico que un 87.80% de los estudiantes de una institución de educación superior desconocen el manejo de estos eventos, de igual forma la implementación de la herramienta permitió mejorar el proceso de enseñanza y aprendizaje evidenciado en los resultados de un test de evaluación final.PALABRAS CLAVE: desarrollo de habilidades, formación profesional, sistemas de enseñanza, tecnología de las comunicaciones. RESUMOEventos de segurança clínica são um problema que afeta todas as instituições de saúde, em que a primeira responsabilidade é atribuída a enfermeiros que prestam assistência direta ao paciente 24 horas por dia. Nos últimos pesquisas e estudos de caso analisados, apresenta-se em três eventos uma elevada percentagem de risco para o paciente cai, úlceras de pressão e flebite (UPP). O presente artigo mostra o desenvolvimento e validação de uma ferramenta tecnológica que visa treinar estudantes de enfermagem na gestão de eventos de segurança no paciente. O inquérito revelou, numa fase precoce do diagnóstico a 87,80% dos estudantes de uma instituição de ensino superior conhece a gestão desses eventos, assim como a implementação da ferramenta melhorou o processo de ensino e aprendizagem evidenciado nos resultados um teste de avaliação final.PALAVRAS-CHAVE: desenvolvimento de competências, formação profissional, sistemas de educação, tecnologia de comunicações.ABSTRACT Clinical safety events are a problem that affects all health institutions, where the first responsibility is attributed to nurses who provide direct patient care 24 Revista Observatório, Palmas, v. 4, n. 3, p. 458-485, maio. 2018 hours a day. In recent research and case studies analyzed, it is presented in three events a high percentage of risk for the patient falls, pressure ulcers and phlebitis (UPP). The present article shows the development and validation of a technological tool that aims to train nursing students in managing security events in the patient. The investigation showed at an early stage of diagnosis a 87.80% of the students at an institution of higher education know the management of these events, just as the implementation of the tool improved the process of...
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