Paper Board
Mostrando 13-24 de 86 artigos, teses e dissertações.
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13. Modeling and FPGA-based implementation of an efficient and simple envelope detector using a Hilbert Transform FIR filter for ultrasound imaging applications
Abstract Introduction Although the envelope detection is a widely used method in medical ultrasound (US) imaging to demodulate the amplitude of the received echo signal before any back-end processing, novel hardware-based approaches have been proposed for reducing its computational cost and complexity. In this paper, we present the modeling and FPGA impleme
Res. Biomed. Eng.. Publicado em: 15/01/2018
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14. Dispositivo para medir tiempo y temperatura usando un microcontrolador
In this paper a device of data acquisition with low cost and easy management was developed for using in experiments of physics where time or temperature measurement is required. The device is composed by three main parts: (i) sensors to measure the physical variables of time and temperature; (ii) a data acquisition card with microcontroller to manage command
Rev. Bras. Ensino Fís.. Publicado em: 27/11/2017
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15. Production and Properties of a New Wood Laminated Veneer/High-Density Polyethylene Composite Board
AbstractThe paper aimed at evaluating the feasibility and the properties of a new product which combines wood veneer and high-density polyethylene (HDPE) from post-consuming plastic bags. Three HDPE amounts were evaluated: 150g/m2, 250 g/m2 e 350 g/m2. The boards were manufactured using a single-opening hot-press under such conditions: 140ºC, for 20 minutes
Mat. Res.. Publicado em: 2015-10
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16. 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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17. FSM-Based Test Case Generation Methods Applied to Test the Communication Software on Board the ITASAT University Satellite: A Case Study
ABSTRACT: The software in satellite applications has become increasingly larger, more complex and more integrated, so its verification and validation require exploration of new approaches. In this paper we present a Model-Based Testing (MBT) approach applied to the Communication Module of the ITASAT-1 university satellite. The models are Finite State Machine
J. Aerosp. Technol. Manag.. Publicado em: 2014-12
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18. Lobbying na Regulação Contábil: Evidências do Setor Petrolífero
Este trabalho tem como objetivo identificar os fatores determinantes à submissão de cartas comentários, como estratégia de lobbying no contexto da regulação contábil, à audiência pública do Discussion Paper Extractive Activities do International Accounting Standards Board IASB).Os resultados mostram o tamanho como fator determinante, em todas as mo
Rev. contab. finanç.. Publicado em: 2014-08
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19. Dynamic response of low frequency Profiled Steel Sheet Dry Board (PSSDB) floor system
Slender structural floors could experience irritating vibration problems due to human walking load and so, vibration acceptability of such floors is an essential subject in addition to the usual strength criterion. This paper focuses on the dynamic response of a lightweight composite structural system known as Profiled Steel Sheet Dry Board (PSSDB) to evalua
Lat. Am. j. solids struct.. Publicado em: 2013-11
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20. Board of directors and top management team : a study on CEO relative power and financial return
Best corporate governance practices published in the primers of Brazilian Securities and Exchange Commission and the Brazilian Corporate Governance Institute promote board independence as much as possible, as a way to increase the effectiveness of governance mechanism (Sanzovo, 2010). Therefore, this paper aims at understanding if what the managerial literat
Publicado em: 02/07/2012
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21. Constructing Coincident and Leading Indices of Economic Activity for the Brazilian Economy
This paper has three original contributions. The fi rst is the reconstruction effort of the series of employment and income to allow the creation of a new coincident index for the Brazilian economic activity. The second is the construction of a coincident index of the economic activity for Brazil, and from it, (re) establish a chronology of recessions in the
Escola de Pós-Graduação em Economia da FGV. Publicado em: 15/03/2012
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22. Dynamic response of low frequency Profiled Steel Sheet Dry Board with Concrete infill (PSSDBC) floor system under human walking load
This paper investigates the dynamic response of a composite structural system known as Profiled Steel Sheet Dry Board with Concrete infill (PSSDBC) to evaluate its vibration serviceability under human walking load. For this point, thirteen (13) PSSDBC panels in the category of Low Frequency Floor (LFF) were developed using Finite Element Method (FEM). The na
Latin American Journal of Solids and Structures. Publicado em: 2012
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23. Reciclagem do lixo de informática: uma oportunidade para a química
Recycling and sustainable development are increasing in importance around the world. In Brazil, the new National Policy on Solid Wastes has prompted discussion on the future of electronic waste (e-waste). Brazil generates the greatest amount of e-waste among Latin American countries. Nevertheless complete recycling, including end processing of e-waste, does
Química Nova. Publicado em: 2012
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24. Constructing coincident and leading indices of economic activity for the brazilian economy
This paper has three original contributions. The first is the reconstruction effort of the series of employment and income to allow the creation of a new coincident index for the Brazilian economic activity. The second is the construction of a coincident index of the economic activity for Brazil, and from it, (re) establish a chronology of recessions in the
Escola de Pós-Graduação em Economia da FGV. Publicado em: 30/03/2011