High Frequency Isolation
Mostrando 1-12 de 200 artigos, teses e dissertações.
-
1. A Compact Dual-Band Self-Diplexing MIMO Patch Antenna for ISM and X-Band Communications
Abstract A compact, dual-band, and self-diplexing MIMO patch antenna with a shared aperture is presented for Industrial scientific medical (ISM) band and X-band communications. The structure consists of two orthogonal feed lines and a rectangular slot in a square patch. The size of the FR4 substrate is 50 × 50 × 1.6 mm3. The designed structure operates at
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
-
2. Modified Ring Power Divider Using Stepped-Impedance Resonator
Abstract In this paper, the design of a modified ring power divider dedicated for wideband communication or measurement systems is presented. The proposed power divider is built by using a conventional ring power divider and an additional Stepped-Impedance Resonator (SIR). The even-odd mode analysis is used to derive the design equations. In order to observe
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2020-03
-
3. Bacteremia in pediatric patients with hematopoietic stem cell transplantation
Abstract Background This study aimed to describe the incidence, microbiological profile, and risk factors associated with bacteremia in pediatric patients with hematopoietic stem cell transplantation (HSCT). Methods A retrospective cohort study was performed on patients under 18 years old who underwent HSCT due to any indication, between January 2012 and J
Hematol., Transfus. Cell Ther.. Publicado em: 2020-03
-
4. Coinheritance of beta-thalassemia minor and hereditary pyropoikilocytosis: case report
Abstract Background This study aimed to describe the incidence, microbiological profile, and risk factors associated with bacteremia in pediatric patients with hematopoietic stem cell transplantation (HSCT). Methods A retrospective cohort study was performed on patients under 18 years old who underwent HSCT due to any indication, between January 2012 and J
Hematol., Transfus. Cell Ther.. Publicado em: 2020-03
-
5. CAREGIVER ROLE STRAIN IN INFORMAL CAREGIVERS FOR THE ELDERLY
RESUMO Objetivo: analisar a frequência do diagnóstico de enfermagem “tensão do papel de cuidador” em cuidadores informais de idosos, as características definidoras e os fatores relacionados. Método: estudo transversal, descritivo, realizado com 99 cuidadores informais de idosos residentes nas áreas de abrangência de cinco unidades de Estratégi
Texto contexto - enferm.. Publicado em: 07/10/2019
-
6. 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
-
7. Emergence of methicillin-resistant Staphylococcus aureus from clonal complex 398 with no livestock association in Brazil
CC398 is a livestock-associated Staphylococcus aureus. However, it has also been isolated from humans with no previous contact with livestock. A surveillance of methicillin-resistant S. aureus colonisation among children attending public day care centres and hospitals in Niterói and Rio de Janeiro, Brazil, between 2011 and 2013, resulted in the isolation of
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-09
-
8. A plate method for rapid screening of Ketogulonicigenium vulgare mutants for enhanced 2-keto-l-gulonic acid production
Abstract A new plate method was developed for rapid screening of Ketogulonicigenium vulgare mutants overproducing 2-keto-l-gulonic acid (2-KLG). The screening methodology took the advantage of the acidity caused by 2-KLG, which changes the color of bromothymol blue (pH indicator) from blue to yellow. Using the proposed method, a mutant, K. vulgare 65, was se
Braz. J. Microbiol.. Publicado em: 2017-07
-
9. Experimental Evaluation of Low-Pass Shock Isolation Performance of Elastomers Using Frequency-Based Kolsky Bar Analyses
Abstract Elastomeric materials are used as shock isolation materials in a variety of environments to dampen vibrations and/or absorb energy from external impact for minimizing energy transfer between two objects or bodies. Some applications require the shock isolation materials to behave as a low-pass mechanical filter to mitigate the shock/impact at high fr
Lat. Am. j. solids struct.. Publicado em: 2017-03
-
10. A Study of the Thermal Runaway Phase Generated During Cyclic Loading of Viscoelastic Materials Accounting for the Prestress
Abstract The good damping performance and inherent stability of viscoelastic materials in relatively broad frequency bands, besides cost effectiveness, offers many possibilities for practical engineering applications. However, for viscoelastic dampers subjected to dynamic loadings superimposed on static preloads, especially when good isolation characteristic
Lat. Am. j. solids struct.. Publicado em: 2016-12
-
11. Secondary bacterial isolates from previously untreated Buruli ulcer lesions and their antibiotic susceptibility patterns in Southern Nigeria
Abstract INTRODUCTION: Mycolactones, secreted by Mycobacterium ulcerans, were previously believed to prevent super infection in Buruli ulcer lesions. However, little is known about secondary bacterial infections in these lesions. This study evaluated contaminating bacterial flora and their antibiotic susceptibility patterns in cases of previously untreated
Rev. Soc. Bras. Med. Trop.. Publicado em: 2016-12
-
12. Influence of the type of fastening of multi-layered closing panels on the estimate of the sound transmission loss
Abstract Industrialized closing systems appear as rational solutions in steel-structured construction. These closing systems, consisting of multi-layered panels, have been applied in projects where it is intended to obtain a high sound transmission loss without raising the cost and without using a lot of mass. However, acoustic isolation depends on several f
REM, Int. Eng. J.. Publicado em: 2016-12