Circuits
Mostrando 1-12 de 906 artigos, teses e dissertações.
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1. Not only pharmacodynamic: the role of brain circuits in improving the treatment of suicidal thoughts and behaviors
Brazilian Journal of Psychiatry. Publicado em: 2022
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2. Bandpass Filter Using SIW Technology in Inductive Window Topology with Low-Cost Substrate FR-4
Abstract This paper features a step-by-step procedure for designing, simulate, and manufacture a bandpass filter using an inductive window topology within the substrate integrated waveguide (SIW) technology. We have chosen an operating frequency in the microwave range compatible with IoT circuits, employing a dielectric material, the FR-4, which is low cost
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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3. Comparison Between Three- and Four-coil Wireless Power Transfer Systems with Resonant Coils
Abstract In this paper, it is demonstrated that the efficiency and ability to transfer power to the load in three-coil wireless power transfer (WPT) systems are always higher than in equivalent four-coil ones. On the other hand, it is shown that there are features attainable in four-coil WPT system that are not in three-coil ones. For instance, in a four-coi
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2021-03
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4. Comparison of Relative Loudness Judgment in Children using Listening Devices with Typically Developing Children
Abstract Introduction Loudness perception is considered important for the perception of emotions, relative distance and stress patterns. However, certain digital hearing devices worn by those with hearing impairment may affect their loudness perception. This could happen in devices that have compression circuits to make loud sounds soft and soft sounds loud
Int. Arch. Otorhinolaryngol.. Publicado em: 2021-01
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5. Heparin-coated vs. Non-coated Cardiopulmonary Bypass Circuits: Comparing Immediate Results with Different Target Activated Clotting Time
Abstract Objective: To compare immediate postoperative results in patients receiving heparin-albumin-coated and non-coated circuits. Methods: A total of 241 patients undergoing on-pump cardiac surgery were divided into two groups: those receiving heparin-coated circuits (Bioline®, Maquet Cardiopulmonary AG., Hirrlingen, Germany) and those receiving non-co
Braz. J. Cardiovasc. Surg.. Publicado em: 2020-12
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6. Editorial: A peste bufônica
Abstract Between the 14th and the 15th centuries, Portugal and Spain came up with the technological and pre-capitalistic conditions, which will allow them to initiate the Atlantic opening and the establishment of transatlantic trade. In the wake of this new economic order, trans-Saharan trade is going to adapt, through different accommodation methods, which
Varia hist.. Publicado em: 2020-08
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7. Le commerce transsaharien et ses logiques d’accommodation par rapport au commerce transatlantique entre le XVe et le XIXe siècle
Abstract Between the 14th and the 15th centuries, Portugal and Spain came up with the technological and pre-capitalistic conditions, which will allow them to initiate the Atlantic opening and the establishment of transatlantic trade. In the wake of this new economic order, trans-Saharan trade is going to adapt, through different accommodation methods, which
Varia hist.. Publicado em: 2020-08
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8. ELECTRICAL NOISES REDUCTION IN NANOPORES EXPERIMENTS BASED ON CONSENSUS FILTER
Nanopore has developed into an indispensable tool for single molecules experiments, where useful information about the characteristics of DNA/RNA can be obtained from the flowing of ionic current elicited by individual molecules as they traverse a single nanometer-scale aperture. However, due to the relatively high background current noise and low measuremen
Quím. Nova. Publicado em: 20/07/2020
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9. Impact of Vacuum-Assisted Venous Drainage on Forward Flow in Simulated Pediatric Cardiopulmonary Bypass Circuits Utilizing a Centrifugal Arterial Pump Head
Abstract Objective: To analyze the impact of vacuum-assisted venous drainage (VAVD) on arterial pump flow in a simulated pediatric cardiopulmonary bypass circuit utilizing a centrifugal pump (CP) with an external arterial filter. Methods: The simulation circuit consisted of a Quadrox-I Pediatric oxygenator, a Rotaflow CP (Maquet Cardiopulmonary AG, Rastatt
Braz. J. Cardiovasc. Surg.. Publicado em: 2020-04
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10. Mobility
Resumo Os conceitos de migração e mobilidade com certeza se cruzam, mas não são sinônimos. Enquanto a migração, por definição, implica mobilidade, estudos de migração têm privilegiado estudar outros aspectos do processo migratório. Este artigo analisa (i)mobilidades migratórias e metodologias para estudá-las e reflete criticamente sobre a util
REMHU, Rev. Interdiscip. Mobil. Hum.. Publicado em: 02/12/2019
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11. NOVO NEOLIBERALISMO ACADÊMICO E O ENSINO SUPERIOR NO BRASIL1
RESUMO A implementação de programas e políticas nas universidades públicas brasileiras, nos últimos 15 anos criaram novos mecanismos de integrá-las aos circuitos de reprodução do capital, sem modificar sua natureza jurídica. Em um contexto de aceleração tecnológica e aprofundamento da crise do capital, criaram-se novas formas de apropriação cap
REAd. Rev. eletrôn. adm. (Porto Alegre). Publicado em: 25/11/2019
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12. Co-Design of a GPS Antenna Low-Noise Amplifier Front-End Circuit
Abstract This paper presents a clear and fast design procedure for directly matched low noise active integrated microstrip antenna front end circuits. Initially, a theoretical analysis is given for the overall gain equivalence between traditional and directly matched antennas. Then, a detailed procedure is presented for the design and construction of a fully
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 11/11/2019