Port Design
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Single Port Multimode Reconfigurable UWB-NB Antenna for Cognitive Radio Applications
Abstract In this paper, a compact, single port, multimode reconfigurable UWB-NB antenna with a novel feeding network is presented. The proposed antenna consists of a pentagonal-shaped monopole radiator, a beveled-shaped partial defected ground plane with a rectangular slot, and a reconfigurable bypass feeding network. The antenna realizes a wideband frequenc
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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2. What do Cochrane systematic reviews say about congenital vascular anomalies and hemangiomas? A narrative review
ABSTRACT BACKGROUND: Congenital vascular anomalies and hemangiomas (CVAH) such as infantile hemangiomas, port-wine stains and brain arteriovenous malformations (AVMs) impair patients’ lives and may require treatment if complications occur. However, a great variety of treatments for those conditions exist and the best interventions remain under discussion.
Sao Paulo Medical Journal. Publicado em: 2022
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3. Internationalization of China’s medical device industry: a case study in Brazil
Abstract Purpose The singularity of being the first Chinese manufacturer of drug-eluting stents to arrive in Brazil and the country being selected as the company's first experience outside its home country motivated the interest in the study of this case, vis-à-vis with the characteristic of internationalization medical device companies according to the Up
RAUSP Management Journal. Publicado em: 2022
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4. YIG Matrix Based Multiband Magneto-Dielectric Cylindrical Resonator Antenna
Abstract A multiband magneto-dielectric resonator antenna with cylindrical geometry is proposed in this paper. The resonator is composed of yttrium iron garnet (YIG) with chemical composition Y3Fe2(FeO4)3. The final structure is built on a low-cost FR4 dielectric substrate. With only one resonator, the antenna is able to resonate in three distinct controlled
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2021-06
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5. Nonlinear static analysis of a pile-supported wharf
Resumo O objetivo deste artigo é desenvolver uma análise estática não-linear através de um estudo de caso de um cais sobre estacas situado em uma nova área portuária para petroleiras. A atividade sísmica da área é muito intensa com uma aceleração máxima do solo de 0.55 g. Por esta razão, é muito importante analisar o comportamento estrutural n
Rev. IBRACON Estrut. Mater.. Publicado em: 11/11/2019
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6. Simulación matemática para la optimización del patrón de flujo entregado por una buza para el molde de colada continua de planchón delgado
ABSTRACT Understanding the behavior of the oscillations of the jets into the mold of thin slab funnel is essential to ensure a constant supply of liquid steel, improve control of the flow patterns and consequently increase plant productivity and the final product quality. To achieve this, we conducted a study of the effect of the internal design of the nozzl
Matéria (Rio J.). Publicado em: 19/07/2018
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7. Dual-Port Dual-Wideband Annular Slot Antenna with Stable Unidirectional Pattern
Abstract This article describes the design of a dual-wideband annular slot antenna. The proposed structure has been optimized to operate in the typical bands of mobile communication systems (0.824-0.960 GHz and 1.710-2.165 GHz). The antenna is designed considering two independent ports with high isolation, one for each operation band, yielding an antenna tha
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2018-03
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8. Broadband Equal Power Divider
Abstract This paper presents the design of broadband two way equal power divider in microstrip medium with defected ground structure suitable for broadband communication systems. Quarter wave broadside coupled lines are used in the place of conventional transformers widely used in the popular Wilkinson power dividers. The proposed power divider structure tak
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2017-04
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9. Effect of Varying Design Options on the Transient Behavior of a Hybrid Rocket Motor
ABSTRACT: Hybrid rockets provide compelling features for use in atmospheric and space rocket propulsion. One of the prominent applications of hybrid rockets which foster on its characteristics is the propulsion of micro air launch vehicles. In this paper, a set of design options of a hybrid rocket motor is evaluated for propulsion of micro air launch vehicle
J. Aerosp. Technol. Manag.. Publicado em: 2014-03
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10. An Asynchronous Interface with Robust Control for Globally-Asynchronous Locally-Synchronous Systems
ABSTRACT: Contemporary digital systems must necessarily be based on the "System-on-Chip" (SoC) concept. Especially in relation to the aerospace industry, these systems must overcome some additional engineering challenges concerning reliability, safety and low power. An interesting style for aerospace SoC design is the GALS (Globally Asynchronous, Locally Syn
J. Aerosp. Technol. Manag.. Publicado em: 2013-03
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11. Enfermagem clínica e doenças relacionadas ao trabalho: um estudo a respeito dos trabalhadores portuários no sul do Brasil / Clinical nursing and work-related diseases: a study of port workers in Southern Brazil
The labor-health-disease forms a major nucleus for the action of Clinical Nursing and considers itself to obtaining health information resources to facilitate technical and scientific instrumentalize action for professional nursing care to workers from different sectors productive entered into this process. Shows the temporary dock worker whose productive ac
Publicado em: 2011
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12. Avaliação do desempenho de Suínos Alimentados com Mananoligossacarídeos (MOS) / Effects of mannan oligosaccharides on gilts and litters performance
The present study evaluated the effects of mananoligossacarides (MOS) as a feed additive on the performance of primiparous sows in late gestation and lactation, as well as on performance and health status of their progeny up to 65 days of age. The experiment was conducted in the Laboratory of Swine Research (FMVZ/USP) Pirassununga SP. For this purpose a comp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/08/2009