Cavity Filter
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. A computational modeling method for root canal endoscopy using a specific CBCT filter: A new era in the metaverse of endodontics begins
Resumo Uma revolução tecnológica contemporânea deu início a uma nova era no metaverso da Endodontia, um mundo de possibilidades operacionais virtuais que utilizam uma réplica exata das estruturas naturais do complexo dentomaxilofacial. Este estudo descreve um método de modelagem computacional para a endoscopia do canal radicular, usando um moderno sof
Brazilian Dental Journal. Publicado em: 2022
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2. Design and implementation of a Quarter Mode Substrate Integrated Waveguide (QMSIW) cavity filter
AbstractIn this paper, a novel Quarter Mode Substrate Integrated Waveguide (QMSIW) cavity filter is presented. A prototype at 5GHz for the proposed filter has been simulated using CST Microwave Studio, and fabricated using standard Printed Circuit Board (PCB) process. The fabricated filter has been measured using a Vector Network Analyzer (VNA). The measurem
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2015-06
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3. Modelagem de dispositivos ópticos em escala nanométrica / Modeling of optical devices in nano scale
Dispositivos fotônicos têm estado continuamente no foco das pesquisas científicas, particularmente em aplicações para comunicações ópticas e sensoriamento. Por outro lado, as dimensões desses dispositivos são restringidas pelo limite de difração de Abbe. Esse limite tem se mostrado como o grande gargalo no desenvolvimento de novas tecnologias em
Publicado em: 2010
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4. Efeitos da esplenectomia na homeostase de órgãos e sítios linfóides em camundongos BALB/c
The spleen acts as a filter, as it removes the blood cells and micro-organisms and cells covered by antibodies in physiological or pathological conditions. For its location and anatomy, the spleen is the main organ involved in early immune responses to blood-borne antigens. Despite the fact that removal of the spleen is associated with risk of subsequent inf
Publicado em: 2010
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5. Ecologia trÃfica do Octocoral Carijoa riisei (Duchassaing &Michelotti, 1860) (Cnidaria, Alcyonacea) em Porto de Galinhas (Pernambuco, Brasil)
Carijoa riisei is the most abundant species of octocoral for the coast of Pernambuco. To know the importance of local species in the food chain, a search was conducted, divided into two stages: the first aiming to discover the food composition and possible seasonal and bathymetric fluctuations, and the second focusing on the degree of selectivity of the octo
Publicado em: 2008
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6. Action of photosensitizers dyes in homogeneous and liposomal microheterogeneous medium to control Streptococcus mutans growing / Ação de corantes fotossensíveis em meio homogêneo e micro heterogêneo de lipossomos no controle do crescimento de Streptococcus mutans
Unbalance in the development of the mouth macrobiota can originate some pathologies, dental cavity being among them - a chronic disease - contagious, of multifactorial etiology, but extremely related to the Streptococcus mutans bacteria, which, through its fermentative metabolism, destroys tooth mineralized structures. Besides that, the increase in resistanc
Publicado em: 2006
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7. Uma Nova Abordagem para o Projeto e Simulação Numérica do Comportamento de Filtros Helicoidais na Faixa de VHF
This thesis develops a grounded study on the design and determination of an equivalent and adequate passive circuit in concentrated parameters for a numerical simulation of band-pass behavior of helical resonators coupled in cascade. It was done a condensation of the existent bibliography and an adequate design sequence for implementation was structured, fro
Publicado em: 2005
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8. Experimentos didáticos envolvendo radiação microondas
Theoretical and practical aspects of the use of microwave-assisted strategies in chemistry are introduced for students using simple and safe experiments employing a domestic oven. Three procedures are proposed for evaluating the distribution of microwave radiation inside the microwave oven cavity: (1) variation of the volume of marshmallows; (2) drying of fi
Química Nova. Publicado em: 2004-12
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9. Mistura de ondas ressonante em absorvedores saturaveis
A study of resonant interactions of two or more waves coupled through population modulation in a saturable absorber (SA) is presented. In the case ot two strong, non collinear waves at equal frequencies, the population in the SA is spatially-modulated and the incident waves are scattered into the various orders of the population grating. A non perturbative r
Publicado em: 1984
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10. Two size-selective mechanisms specifically trap bacteria-sized food particles in Caenorhabditis elegans
Caenorhabditis elegans is a filter feeder: it draws bacteria suspended in liquid into its pharynx, traps the bacteria, and ejects the liquid. How pharyngeal pumping simultaneously transports and filters food particles has been poorly understood. Here, we use high-speed video microscopy to define the detailed workings of pharyngeal mechanics. The buccal cavit
National Academy of Sciences.
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11. Mortality and type of cigarette smoked.
Twenty-five years ago, cigarette smokers in the United Kingdom smoked plain cigarettes with an average tar yield of probably about 35 mg. Now smokers predominantly smoke filter cigarettes and average tar yields have been reduced by half. Epidemiological evidence comparing mortality in smokers of differing types of cigarettes is reviewed. Compared with smoker
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12. Exploration of the pore structure of a peptide-gated Na+channel
The FMRF-amide-activated sodium channel (FaNaC), a member of the ENaC/Degenerin family, is a homotetramer, each subunit containing two transmembrane segments. We changed independently every residue of the first transmembrane segment (TM1) into a cysteine and tested each position’s accessibility to the cysteine covalent reagents MTSET and MTSES. Eleven muta
Oxford University Press.