Search | SciELO

Need help?

Add field +

Search history

No documents were found for your search

Results: 28

au:Fernandes, W

Filters

Collection + Options

All
Brazil

23
Argentina

1
Chile

1
Colombia

1
Mexico

1
Portugal

1

Journal + Options

All
Revista Brasileira de Ciência do Solo

3
Revista Brasileira de Engenharia Agrícola e Ambiental

3
Ciência Rural

2
Journal of Venomous Animals and Toxins including Tropical Diseases

2
Arquivos Brasileiros de Cardiologia

1
Brazilian Journal of Medical and Biological Research

1
Brazilian Oral Research

1
Darwiniana, nueva serie

1
Horticultura Brasileira

1
Idesia (Arica)

1
Journal of Aerospace Technology and Management

1
Journal of the Brazilian Society of Mechanical Sciences and Engineering

1
Materials Research

1
Memórias do Instituto Oswaldo Cruz

1
Motricidade

1

Show all...

Language

All
Portuguese

13

Publication Year + Options

All
2012

4
2008

3
2013

3
2004

2
2009

2
2014

2
2017

2
2018

2
1998

1
2001

1
2005

1
2006

1
2011

1
2016

1
2020

1

Show all...

SciELO Thematic Areas + Options

All
Agricultural Sciences

11
Health Sciences

6
Biological Sciences

4
Engineering

4
Exact and Earth Sciences

3
Multidisciplinary

2
Applied Social Sciences

1

WoS Subject Categories + Options

All
Engineering

7
Sciences

7
Medicine

5
Science

5
Multidisciplinary

4
Agricultural

3
Environmental

3
Soil

3
Tropical

3
Agriculture

2
Agronomy

2
Metallurgical

2
Metallurgy

2
Toxicology

2
Aerospace

1

Show all...

WoS Citation Index + Options

All
Science Citation Index Expanded

17
Social Sciences Citation Index

1

Citables and non citables + Options

All
Citable

27
Non citable

1

Type of Literature + Options

All
Article

26
Book review

1
Case report

1

Order by

Page of 2 Next

Select this page

Print | Send to email | Export |

Facebook
Twitter
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

0 Selected itens

List all
Erase all

Determination of Tensile Shear Strength and Corrosion Behavior of Circular Bead Produced by a Laser Beam for Overlapped AISI 304 Steel Sheets
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Vieira, Deisi

; May, Jose Eduardo

; Savonov, Graziela da Silva

; Siqueira, Rafael Humberto Mota de

; Lima, Milton Sérgio Fernandes de

Soldagem & Inspeção

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2021, Volume 26 elocation e2614

Abstract: En | Text: En | PDF: En

Abstract: A circular bead produced by a laser beam (CLW) is a method of joining superposed sheets by scanning circularly a laser beam. Among the various applications, it could be highlighted the welding of austenitic stainless steel AISI 304 sheets for heat exchangers. This work aims to report the effect of fiber laser CLW in tensile shear strength of superposed sheets as well as the corrosion behavior in relation to the process parameters. It was carried out circular beads using stainless steel AISI 304 sheets varying the laser power and speed. The samples were then submitted to optical and electronic microscopy, tensile-shear tests and electrochemical experiments. Among the experimental conditions, the weld sample with 800 W power and 50 mm/s speed presented an ultimate tensile strength of 159 MPa, 17% higher than the sample with the lowest result. The corrosion rate, corrosion and pitting potentials did not change significantly in the welded joint with different conditions compared to the base metal.

https://doi.org/10.1590/0104-9224/si26.14 31 downloads

Onion yield as a function of soil tillage system and soil water content
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Feitosa, Jardênia R.

; Fernandes, Haroldo C.

; Cecon, Paulo R.

; Leite, Daniel M.

; Nery, Filipe M. T.

; Pereira, Janielle S.

Revista Brasileira de Engenharia Agrícola e Ambiental

Journal Metrics
- Sobre o periódico
- SciELO Analytics

feb 2020, Volume 24 N. 2 Pages 115 - 120

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO O excesso de operações mecanizadas de preparo do solo em condições inadequadas pode elevar o custo da produção agrícola e ocasionar a degradação do solo, sem que sejam obtidas respostas adequadas da cultura. Objetivou-se com este trabalho avaliar a resposta da cultura da cebola em função de teores de água e sistemas de preparo do solo. Foram avaliados três sistemas de preparo: P1 (aração, duas gradagens e duas operações de encanteiramento); P2 (duas gradagens e uma operação de encanteiramento); P3 (uma gradagem e uma operação de encanteiramento); e quatro teores de água do solo, 12, 15, 23 e 26%. O experimento foi conduzido no perímetro irrigado Tourão, Juazeiro, BA (9° 24’ 7.3” S; 40° 26’ 8.7” W e altitude de 368 m), em 2017, sendo instalado em parcelas subdivididas, no delineamento em blocos casualizados, com quatro repetições. Nas parcelas foram dispostos os teores de água e nas subparcelas, os sistemas de preparo. A resposta da cultura aos tratamentos foi avaliada por meio da determinação do índice de velocidade de emergência das plântulas, regularidade da distribuição longitudinal das plântulas, estande final, produtividade total, comercial da cultura e produtividade por classe de diâmetro transversal dos bulbos. A variação do teor de água no solo apresentou efeito quadrático sobre as variáveis velocidade de emergência, estande final e produtividade total de cebola. Os tratamentos não afetaram significativamente a distribuição longitudinal das plântulas e a produtividade comercial. O sistema de preparo composto por uma gradagem e uma operação de encanteiramento se mostrou o mais adequado ao cultivo da cebola por semeadura direta.

ABSTRACT Excessive tillage operations under inadequate conditions can raise the cost of agricultural production and lead to soil degradation without adequate crop response. The objective of this study was to evaluate the onion crop response to soil water contents and tillage systems. Three tillage systems were evaluated: P1 (plowing + two harrowings + two seedbed raising operations), P2 (two harrowings + one seedbed raising operation), P3 (one harrowing + one seedbed raising operation); and four soil water contents: 12, 15, 23 and 26%. The experiment was conducted in the irrigated perimeter of Tourão, Juazeiro, BA, Brazil (9° 24’ 7.3” S; 40° 26’ 8.7” W and altitude of 368 m), in 2017, and was installed in split plots, in a randomized block design, with four repetitions. Water contents were arranged in the plots and tillage systems in the subplots. Crop response to the applied treatments was evaluated through the determination of the emergence speed index of the seedlings, regularity of the longitudinal distribution of seedlings, final stand, total and marketable yields of the crop and yield per bulb transverse diameter class. The variation of soil water content had a quadratic effect on the variables emergence speed index, final stand and total onion yield. The treatments did not significantly affect the longitudinal distribution of plants and marketable yield. The tillage system composed of one harrowing and one seedbed raising operation showed to be the most appropriate for onion cultivation by direct seeding.

https://doi.org/10.1590/1807-1929/agriambi.v24n2p115-120 662 downloads

Production of cut sunflower under water volumes and substrates with coconut fiber
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Oliveira, Marcelo S. de

; Carvalho, Daniel F. de

; Gomes, Daniela P.

; Pereira, Fernandes A. C.

; Medici, Leonardo O.

Revista Brasileira de Engenharia Agrícola e Ambiental

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2018, Volume 22 N. 12 Pages 859 - 865

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Objetivou-se neste trabalho avaliar a produção de girassol de corte em resposta a diferentes volumes de água e substratos, constituídos de solo e fibra de coco. Foram realizados dois experimentos simultâneos em casa de vegetação, localizada no setor de Horticultura da Universidade Federal Rural do Rio de Janeiro (UFRRJ), Seropédica - RJ, Brasil (22º 48’ S, 43º 41’ W e altitude de 33 m), entre abril e junho de 2016. A aplicação de água foi realizada por meio do Acionador Automático para Irrigação (AAI), possibilitando a aplicação de diferentes volumes (33, 67 e 133% da capacidade de retenção do substrato) em relação ao tratamento controle (100%). Os substratos utilizados foram 1/3 de fibra de coco e 2/3 de solo (v/v) (Experimento 1), e 2/3 de fibra de coco e 1/3 do solo (v/v) (Experimento 2). O delineamento experimental utilizado foi o inteiramente casualizado, com 5 repetições. O tratamento referente a 100% do volume aplicado pelo AAI possibilitou o melhor crescimento do girassol, proporcionando o aumento de renda potencial obtida com hastes em melhor padrão de comercialização de acordo com os preços praticados.

ABSTRACT This study aimed to evaluate the production of cut sunflower in response to different water volumes and substrates, composed of soil and coconut fiber. Two simultaneous experiments were conducted in greenhouse, located in the Horticulture Sector of the Federal Rural University of Rio de Janeiro (UFRRJ), Seropédica - RJ, Brazil (22º 48’ S, 43º 41’ W and altitude of 33 m), between April and June 2016. Water was applied by an Simplified Irrigation Controller (SIC), allowing the application of different volumes (33, 67 and 133% of retention capacity of substrate) in comparison to the control treatment (100%). The substrates used were 1/3 of coconut fiber and 2/3 of soil (v/v) (Experiment 1), and 2/3 of coconut fiber and 1/3 of soil (Experiment 2). The experimental design was completely randomized, with 5 replicates. The treatment with 100% of the volume applied by the SIC led to best growth of sunflower, increasing the potential income obtained with stems at better marketing standard according to the prices practiced.

https://doi.org/10.1590/1807-1929/agriambi.v22n12p859-865 877 downloads

A Comparative Study of the Heat Input During Laser Welding of Aeronautical Aluminum Alloy AA6013-T4
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Coelho, Bruno Nazário

; Lima, Milton Sergio Fernandes de

; Carvalho, Sheila Medeiros de

; Costa, Adilson Rodrigues da

Journal of Aerospace Technology and Management

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2018, Volume 10 elocation e2918

Abstract: En | Text: En | PDF: En

ABSTRACT The heat input is the amount of energy supplied per unit length of the welded workpiece. In this study, the effect of two different heat inputs in laser beam welding of a high strength aluminum alloy AA6013-T4 was evaluated from macrostructural and microstructural points of view. The experiments were performed using a continuous wave 2 kW Yb-fiber laser with 100 µm spot size on the upper surface of the workpiece. Keeping the heat input at a given level, 13 or 30 J/mm, the laser power was changed from 650 W to 2 kW and the welding speed from 33 to 150 mm/s. In the condition of higher heat input 30 J/mm it was possible to obtain both cutting and welding processes. For 13 J/mm, welding processes were obtained in conduction and keyhole modes. The equiaxed grain fraction changed with changing speed for the same heat input. The laser processing induced a decrease in the hardness of the weld bead of about 25% due to the solubilization of the precipitates. The estimated absorptivities of the laser beam in the liquid aluminum changed largely with experimental conditions, from 4.6% to 10.5%, being the most significant source of error in measuring the real amount of energy absorbed in the process. For the same heat input the macrostructure of the welded surfaces, i.e., humps and dropouts, changed as well. All these facts indicate that the heat input is not a convenient method to parameterize the laser beam welding parameters aiming the same weld features.

https://doi.org/10.5028/jatm.v10.925 2166 downloads

From anthesis to diaspore dispersal: reproductive mechanisms of rare herbaceous moraceae species endemic to Brazil
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics

Márcia de Araújo, Luzia

; Valentin-Silva, Adriano

; Fernandes, Geraldo W

; Vieira, Milene F

Darwiniana, nueva serie

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jul 2017, Volume 5 N. 1 Pages 83 - 92

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

Studies on the reproductive biology of Dorstenia species are scarce. We analyzed the sexuality, floral biology, and diaspore dispersal of Dorstenia arifolia and D. bonijesu, including their breeding systems and pollinators, in natural populations from Minas Gerais state, southeastern Brazil. We report here, for the first time, the occurrence of both unisexual (male) and bisexual coenanthia on the same individuals of Dorstenia arifolia, while only bisexual coenanthia were observed in D. bonijesu. In both species all coenanthia were long-lived and bisexual coenanthia were protogynous. We observed the occurrence of self-compatibility and myophily in Dorstenia arifolia, a species which was pollinated by small Lauxaniidae flies. Those insects not only used pollen as food resource but they also used coenanthia as oviposition sites, which is the first report to the studied species. Dorstenia bonijesu produced seeds, even having no floral visitors, suggesting an apomictic mechanism, which is a new breeding system reported to the genus. Both studied species are autochorous, but D. bonijesu also exhibited a peculiar type of hydrochory. The novelties reported herein indicate the need of additional studies to improve the understanding of the reproductive attributes of Dorstenia species.

Los estudios sobre la biología reproductiva de las especies de Dorstenia son escasos. En este artículo analizamos la sexualidad, la biología floral y dispersión de las diásporas de Dorstenia arifolia y D. bonijesu, incluyendo sus sistemas reproductivos y polinizadores, en poblaciones naturales localizadas en el estado de Minas Gerais, sudeste de Brasil. Registramos, por primera vez, la presencia de cenantos unisexuales (masculinos) y bisexuales en un mismo individuo de Dorstenia arifolia; en cambio, sólo se observaron cenantos bisexuales en D. bonijesu. En ambas especies los cenantos fueron de larga duración, y los cenantos bisexuales exhibieron protoginia. Registramos autocompatibilidad y miofilia en Dorstenia arifolia, que fue polinizada por pequeñas moscas de la familia Lauxaniidae. Estos insectos no solo usan el polen como alimento sino que utilizan el cenanto como sitio de oviposición, siendo este un hecho registrado por primera vez para para las especies estudiadas. Dorstenia bonijesu, aún sin visitantes florales, también produce semillas mediante apomixis, un nuevo sistema reproductivo para el género. Las dos especies estudiadas son autocóricas; sin embargo, Dorstenia bonijesu exhibió un tipo peculiar de hidrocoria. Las novedades aquí registradas indican la necesidad de estudios adicionales para mejorar la comprensión de los atributos reproductivos de las especies de Dorstenia.

176 downloads

Surface Modification of Ti6Al4V Alloy by Pulsed Lasers: Microstructure and Hydrophobic Behavior
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Lima, Milton Sérgio Fernandes de

; Almeida, Ivan

Materials Research

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2017, Volume 20 Pages 8 - 14

Abstract: En | Text: En | PDF: En

In many aerospace applications, it is important to produce hydro-repellent surfaces because water and ice accumulation could lead to malfunctioning of the part or component with a potential critical failure. In this study, it was investigated the texturing of a titanium alloy (Ti6Al4V) by applying a pulsed Nd:YAG laser, aimed at the surface characterization by microscopy, X-ray diffraction, roughness and nano-indentation tests as well as free fall drop test. The experimental procedure aimed to understand the influence of three variables: (N) the number of laser runs 1, 2, 5 and 10; (V) laser speeds of 25, 50 and 100 cm/s and (P) laser power of 5, 10 and 20 W on the microstructure and the hydrophobic behavior. The Vickers hardness and elastic modulus of laser processed surfaces were similar to the untreated surfaces. When the number of the laser runs (N) increased, a TiO phase amount increases as a result of increasing heat input. The measured roughnesses decreased with increasing P as a direct result of remelting. As the number of runs (N) increases the surface became more and more flat, consequently the overlapping runs induced polishing of the titanium surfaces. The mean roughness Ra attained 0.23 µm after 10 runs at V=100m/s and P=10W, compared to Ra=0.41 µm of the virgin surface. The water repellent conditions were N1V50P05, N1V100P05, N2V25P05, N2V50P05, N5V25P05, N5V50P05, N5V100P10 and N10V25P10. These conditions were associated with a homogeneous remelted layer, low power, partial superposition of the laser shots of 50% or 75%, and a surface finish slightly rougher than the original material.

https://doi.org/10.1590/1980-5373-mr-2017-0221 1488 downloads

Método de Ajuste Matemático para Validação de Dados de Sensores de Radiação de Onda Longa
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Dias Neto, Jose

; Thomaz Júnior, José Celso

; Urbano Neto, Domingos Fernandes

Revista Brasileira de Meteorologia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

mar 2016, Volume 31 N. 1 Pages 37 - 44

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Uma metodologia para corrigir observações de Radiação de Onda Longa Descendente (OLD) geradas por estações de superfície é apresentada. Consiste na aplicação do método de mínimos quadrados para encontrar coeficientes (ks) específicos de sensores PIR Eppley (EP) e CGR4 Kipp & Zonen (KZ) e reprocessamento das séries temporais. A avaliação da metodologia utilizou dados obtidos de um experimento realizado no Laboratório de Instrumentação Meteorológica - CPTEC/INPE. A aplicação de testes estatísticos na série de dados, com e sem correção, mostra uma redução significativa da Raiz do Erro Quadrático Médio, que passou de 9,02 a 0,43 W/m2 para o sensor EP e de 4,11 a 1,21 W/m2 para o KZ; o viés reduziu de −7,99 para 0,50 W/m2 (EP) e de 3,53 para 0,27 W/m2 (KZ). Um sensor CG4 (KZ) de referência calibrado no Physikalisch-Meteorologiches Observatorium Davos (PMOD), com rastreabilidade foi utilizado.

Abstract Hereby is presented a methodology to correct observations of Downwelling Longwave Radiation (DLR) generated by surface stations. It consists in the application of the least squares method to find coefficients (ks) of PIR Eppley (EP) and CGR4 Kipp & Zonen (KZ) sensors, and reprocessing of time series. The evaluation of the methodology used data obtained in an experiment conducted in the Meteorological Instrumentation Laboratory - CPTEC / INPE. The application of statistical tests in the data series, with and without correction shows a significant reduction of the Root Mean Square Error, which went from 9,02 to 0,43 W/m2 for the EP sensor and 4,11 to 1,21 W / m2 for KZ; bias decreased from 0,50 to −7,99 W/m2 (EP) and 3,53 to 0,27 W/m2 (KZ). A CG4 sensor (KZ) of the calibrated reference Physikalisch-Meteorologiches Observatorium Davos (PMOD) with traceability was used.

https://doi.org/10.1590/0102-778620140022 1332 downloads

Megastigmus transvaalensis (Hymenoptera: Torymidae) on Schinus polygamus (Anacardiaceae): a new native host for this invasive seed-feeding species
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics

Fernandes, Daniell R.R

; Salas, Claudio

; Rothmann, Sergio

; Lara, Rogéria I.R

; Perioto, Nelson W

Idesia (Arica)

Journal Metrics
- Sobre o periódico
- SciELO Analytics

nov 2014, Volume 32 N. 4 Pages 119 - 122

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

This is the first report of the interaction between the seed-feeding M. transvaalensis and S. polygamous, a native fruit from South America.

Este es el primer registro de la interacción entre Megastigmus transvaalensis y semillas de Schinus polygamus, un fruto nativo de América del Sur.

1625 downloads

Stress analysis of different configurations of 3 implants to support a fixed prosthesis in an edentulous jaw
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Silva-Neto, João Paulo da

; Pimentel, Marcele Jardim

; Neves, Flávio Domingues das

; Consani, Rafael Leonardo Xediek

; Santos, Mateus Bertolini Fernandes dos

Brazilian Oral Research

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2014, Volume 28 N. 1 Pages 67 - 73

Abstract: En | Text: En | PDF: En

This study's aims was to evaluate the stress distribution in a mandibular implant-supported prosthesis and peri-implant bone considering implant quantity, diameter and position using linear 3-D finite element analysis. Models of an anterior jaw comprised 4 groups according to implant quantity, diameter, and position: control group C, 5 regular implants; R, 3 regular implants; W, 3 wide implants; and DTR, 3 regular implants with the distal ones tilted 30º distally. The cantilever was loaded with an axial load of 50 N. Data was evaluated using von Mises stress on implants and maximum principal stress and microstrain on the bone. The W group showed the lowest value of maximum principal stress in peri-implant bone of the loaded side (4.64 MPa) when compared to C (5.27 MPa), DTR (5.94 MPa), and R (11.12 MPa). Lower stress values in the loaded implants were observed in the experimental groups when compared to the C group. However, the unloaded implants presented opposite results. All the screws of the W group presented lower stress values when compared to the C group. However, the R and DTR groups presented an increase in stress values with the exception of the loaded screw. A reduction in the number of implants associated with wider implants reduced the stress in the bone and prosthetic components.

https://doi.org/10.1590/S1806-83242013005000028 3147 downloads

10.

I Diretriz de Ressuscitação Cardiopulmonar e Cuidados Cardiovasculares de Emergência da Sociedade Brasileira de Cardiologia
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Gonzalez, MM

; Timerman, S

; Gianotto-Oliveira, R

; Polastri, TF

; Canesin, MF

; Schimidt, A

; Siqueira, AW

; Pispico, A

; Longo, A

; Pieri, A

; Reis, A

; Tanaka, ACS

; Santos, AM

; Quilici, AP

; Ribeiro, ACL

; Barreto, ACP

; Pazin-Filho, A

; Timerman, A

; Machado, CA

; Franchin Neto, C

; Miranda, CH

; Medeiros, CR

; Malaque, CMS

; Bernoche, C

; Gonçalves, DM

; Sant'Ana, DG

; Osawa, EA

; Peixoto, E

; Arfelli, E

; Evaristo, EF

; Azeka, E

; Gomes, EP

; Wen, FH

; Ferreira, FG

; Lima, FG

; Mattos, FR

; Galas, FG

; Marques, FRB

; Tarasoutchi, F

; Mancuso, FJN

; Freitas, GR

; Feitosa-Filho, GS

; Barbosa, GC

; Giovanini, GR

; Miotto, HC

; Guimarães, HP

; Andrade, JP

; Oliveira-Filho, J

; Fernandes, JG

; Moraes Junior, JBMX

; Carvalho, JJF

; Ramires, JAF

; Cavalini, JF

; Teles, JMM

; Lopes, JL

; Lopes, LNGD

; Piegas, LS

; Hajjar, LA

; Brunório, L

; Dallan, LAP

; Cardoso, LF

; Rabelo, MMN

; Almeida, MFB

; Souza, MFS

; Favarato, MH

; Pavão, MLRC

; Shimoda, MS

; Oliveira Junior, MT

; Miura, N

; Filgueiras Filho, NM

; Pontes-Neto, OM

; Pinheiro, PAPC

; Farsky, OS

; Lopes, RD

; Silva, RCG

; Kalil Filho, R

; Gonçalves, RM

; Gagliardi, RJ

; Guinsburg, R

; Lisak, S

; Araújo, S

; Martins, SCO

; Lage, SG

; Franchi, SM

; Shimoda, T

; Accorsi, TD

; Barral, TCN

; Machado, TAO

; Scudeler, TL

; Lima, VC

; Guimarães, VA

; Sallai, VS

; Xavier, WS

; Nazima, W

; Sako, YK

Arquivos Brasileiros de Cardiologia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

aug 2013, Volume 101 N. 2 Pages 1 - 221

Abstract: Pt | Text: Pt | PDF: Pt

https://doi.org/10.5935/abc.2013S006 554620 downloads

11.

Dermatoglífia, somatotípia e qualidades físicas dos policiais do batalhão de operações especiais-BOPE
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics

Rodrigues dos Santos, Marcello

; Fernandes Filho, José

Revista Científica General José María Córdova

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jul 2013, Volume 11 N. 12 Pages 307 - 308

Este estudio tiene como objetivo identificar los perfiles dermatoglifo, somatotipo y las cualidades físicas básicas de los miembros del Batallón de Operaciones Especiales (BOPE) en Brasil. Para ello, la investigación tomó una muestra de 70 personas, constituida por agentes de la policía, soldados, cabos, sargentos y oficiales del equipo BOPE (Batallón de Operaciones Especiales, de Río de Janeiro, Brasil), en el año 2005. La metodología utilizada para la investigación es de tipo descriptivo y arrojó como resultados una tipología de cada perfil. En el perfil dermatoglifo, se identifican las características de las huellas dactilares de los miembros del equipo BOPE, que consisten en los índices más importantes: D10 = 10,3 ± 3,26; LQTS = 111,39 ± 31,05, A = 17,4 %; L = 62,1 %, W = 20,4 %. Se obtuvieron valores para el somatotipo de endomorfia = 3,24 ± 1,26; de mesomorfismo = 5,91 ± 1,08 y de ectomorfismo = 1,72 ± 1,09. La característica identificada para el grupo fue Mesoendomorfo. En cuanto a las cualidades físicas básicas se encontraron los siguientes valores: VO2max55,13 ± 3,84 ml/kg.min; agilidad 11,33 ± 0,70 segundos, resistencia muscular localizada 60,31 ± 8,51 repeticiones; Coordinación 4,78 ± 1,06 repeticiones, la velocidad de reacción fue de 0,36 ±0,16 segundos. Evaluando los resultados, se demuestra buena forma y condición física, las cuales son necesarias para una tropa de operaciones especiales, en el caso del Batallón de Operaciones Especiales de la Policía (PMERJ).

Cette étude vise à identifier les profils dermatoglyphique, somatotype et les qualité sphysiques de base des membres du Bataillon des opérations spéciales (BOPE). Cette recherche examine comment l'échantillon, 70 policiers et soldats, des câbles, des sergents et officiers de la BOPE en l'an 2005. La méthodologie est un descriptif, et emploient un profil de typologie. Endermatoglyphique profil des caractéristiques des empreintes digitales des membres du BOPE, qui consistent en des indices les plus importants identifiés: D10 = 10,3 ± 3,26; LQTS = 111.39 ± 31.05, A= 17,4%; L = 62,1%, W = 20,4%. En identifiant le profil somatotypical, les valeurs ont été obtenuespour le somatotype de endomorphie = 3,24 ± 1,26; mésomorphie = 5,91 ± 1,08 et 1,72 ± 1,09 =Ectomorphia , la fonctionnalité trouvé dans le groupe était Meso -endomorphic . En ce qui concerneles qualités physiques de base, nous avons trouvé les valeurs suivantes: VO2max 55,13 ± 3,84 ml /kg.min; Agilité 11,33 ± 0,70 secondes, répétitions endurance musculaire 60,31 ± 8,51; Coordination4,78 ± 1,06 répétitions, la vitesse de réaction de 0,36 ± 0,16 secondes. Dans l'évaluation de tous les résultats , démontrer la bonne forme et la condition physique , qui sont nécessaires pour une trouped' opérations spéciales dans le cas du Bataillon des opérations spéciales de police (PMERJ).

This research analyzed profile of dermatoglyphic, somatotypical and the basic physical qualities of BOPE'S team. The sample consisted of 70 policimen, like soldiers, sergeants and official from Specials Operations Batallion (PMERJ), in year 2005. It was a descriptive kind of research, with profile study. Regarding the dermatolyphic profile, it was identified in finger prints of BOPE'S team, which included the most important contents D10 = 10,3 ± 3,26; SQTL= 111,39 ± 31,05; A= 17,4%; L= 62,1%; W= 20,4. Take into consideration the somatotypical profile the indexes were: Endomorphy = 3,24 ± 1,26; Mesomorphy = 5,91 ± 1,08 and Ectomorphy = 1,72 ± 1,09, and the characteristic found at BOPE'S tem was meso-endomorphy. Considering the basic physical qualities the results were: Vomáx de 55,13 ± 3,84 ml/kg.min; Agility 11,33 ± 0,70 seconds; Abdominals: 60,31 ±8,51 repetitions; Coordination: 4,78 ± 1,06 repetitions and reaction speed: 0,36 ± 0,16 seconds. Summing 8,51up, we concluded that good physical ability and physical performance of BOPE'S team is adjusted from their professional activities.

O presente Estudo tem por objetivo identificar os perfis dermatoglíficos, somatotípico e das qualidades físicas básicas dos integrantes do Batalhão de operações especiais (BOPE). Esta pesquisa considera, como amostra, 70 policiais, sendo soldados, cabos, sargentos e oficiais do BOPE, no ano de 2005. A metodologia empregada trata-se de uma pesquisa descritiva, e empregará umatipologia de perfil. No perfil dermatoglífico foram identificadas as características das impressões digitais dos integrantes do BOPE, que consistem dos índices mais importantes: D10 = 10,3 ± 3,26; SQTL= 111,39 ± 31,05; A= 17,4%; L= 62,1%; W= 20,4%. Na identificação do perfil somatotípico, foram obtidos valores para o somatotipo de Endomorfia= 3,24 ± 1,26; Mesomorfia= 5,91 ± 1,08 e Ectomorfia= 1,72 ± 1,09, a característica encontrada no grupo foi Meso-endomorfico. Em relação às Qualidades físicas básicas foram encontrados os seguintes valores: Vomáx de 55,13 ± 3,84ml/kg.min; Agilidade 11,33 ± 0,70 segundos; resistência muscular localizada 60,31 ± 8,51 repetições; Coordenação 4,78 ± 1,06 repetições; Velocidade de reação 0,36 ± 0,16 segundos. Na avaliação de todos resultados, demonstram boa forma física e condicionamento físico, que são necessários para uma tropa de operações especiais, no caso dos Policiais do Batalhão de Operações Especiais (PMERJ).

1622 downloads

12.

Controle químico da mancha-bacteriana do tomate para processamento industrial em campo
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics

Nascimento, Abadia dos R

; Fernandes, Paulo M

; Borges, Lino Carlos

; Moita, Antonio W

; Quezado-Duval, Alice Maria

Horticultura Brasileira

Journal Metrics
- Sobre o periódico
- SciELO Analytics

mar 2013, Volume 31 N. 1 Pages 15 - 24

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Com o objetivo de avaliar produtos químicos no controle da mancha-bacteriana em tomate para processamento industrial, foram conduzidos dois ensaios na área experimental da Unilever Bestfoods, em Goiânia-GO. No primeiro, o híbrido Heinz 9992 foi inoculado com Xanthomonas perforans em blocos casualizados, com 15 tratamentos e três repetições. O segundo ensaio foi em blocos ao acaso com parcelas subdivididas com três repetições. A parcela principal foi "tratamento químico" (10 tratamentos) e a subparcela "híbrido" (Hypeel 108 e U2006). Inoculou-se X. perforans e X. gardneri. Em ambos os ensaios os produtos testados, em diferentes números de aplicações e regimes, foram: acibenzolar-S-metil (ASM); famoxadona + mancozebe; metiram + piraclostrobina; fosfito PK; cloretos de benzalcônio; óxido cuproso e hidróxido de cobre (SC, WP e WG). Em ambos os ensaios, foram avaliados severidade da doença nas folhas, número de frutos com sintomas e produtividade. No segundo ensaio avaliou-se também o número de frutos com escaldadura. No primeiro ensaio foram detectadas diferenças significativas (p>0,05) entre os tratamentos somente nas duas primeiras avaliações de severidade, mas nenhum dos tratamentos diferiu da testemunha. No segundo ensaio, para severidade foliar, foi detectada diferença significativa apenas para os híbridos na primeira avaliação. Para número de frutos com sintomas e escaldadura a interação entre os fatores "tratamento químico" e "híbrido" foi também significativa. Nas folhas, 'U2006' foi mais resistente do que 'Hypeel 108', que apresentou maior incidência de escaldadura, mas nos frutos ocorreu o inverso. Para produtividade, os dois fatores foram significativos. 'U2006' foi mais produtivo do que 'Hypeel 108'. Entre os 10 tratamentos químicos, apesar de nenhum ter diferido da testemunha, famoxadona + mancozebe, que resultou em maior produtividade, diferiu de hidróxido de cobre (WG), ASM - famoxadona + mancozebe e cloretos de benzalcônio. ASM e famoxadona + mancozebe foram os que promoveram uma relação benefício/custo superior a 1.

In order to evaluate chemical control of bacterial spot on tomato for industrial processing, two field trials were carried out at the Unilever Bestfoods experimental station, in Goiânia, Goias state, Brazil. The first trial was in a randomized complete block design, with 15 treatments and three replications, using the hybrid Heinz 9992 inoculated with Xanthomonas perforans. The second trial was in a split-plot randomized complete block design with chemical foliar applications (10 treatments) and hybrids (Hypeel 108 and U2006) as factors. Plants were inoculated with X. perforans and X. gardneri. In both trials the chemicals, in different number of applications and combinations, were: acibenzolar-S-methyl (ASM); famoxadone + mancozeb; metiram + pyraclostrobin; phosphite PK; benzalkonium chlorides; cuprous oxide, and copper hydroxide (SC, WP and WG). For both trials, disease severity on leaves, number of fruits with symptoms and yield were evaluated. In the second one, sunscald was also evaluated. For the first trial, significant severity differences (p>0.05) among treatments were observed only in the first two evaluations, but none of them differed from the water check control. In the second trial, significant differences were detected only in foliar severity in first evaluation for hybrids. For number of fruits with symptoms and sunscald, besides hybrids, interaction among factors was also significant. 'U2006' was more resistant than 'Hypeel 108', which also had highest sunscald values, but concerning fruits with symptoms, the opposite was observed. The two factors were significant for yield data, 'U2006' yielded better than 'Hypeel 108'. Despite none of the treatments have differed in yield from the water control, famoxadone + mancozeb, which resulted in the highest yield, differed from copper hydroxide, ASM - famoxadone + mancozeb, and benzalkonium chlorides. ASM and famoxadone + mancozeb were those that promoted benefit/cost relation higher than 1.

16289 downloads

13.

Sequências de culturas em sistema de semeadura direta: I - produção de matéria seca e acúmulo de nutrientes
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics

Marcelo, Adolfo Valente

; Corá, José Eduardo

; Fernandes, Carolina

Revista Brasileira de Ciência do Solo

Journal Metrics
- Sobre o periódico
- SciELO Analytics

nov 2012, Volume 36 N. 5 Pages 1553 - 1567

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Em sistema de semeadura direta, os resíduos das culturas de entressafra são utilizados com as finalidades de proteger a superfície do solo dos agentes erosivos e de promover a ciclagem de nutrientes. O objetivo deste trabalho foi avaliar a produção de matéria seca e o acúmulo de nutrientes nos resíduos vegetais provenientes de diferentes sequências de culturas em semeadura direta. O experimento foi conduzido em Jaboticabal-SP (48° 18' W e 21° 15' S), em um Latossolo Vermelho eutrófico. O delineamento experimental foi em faixas, com três repetições. Os tratamentos foram constituídos pela combinação de três sequências de culturas de verão (rotação soja-milho e monoculturas de milho e de soja) com sete culturas de entressafra (milho, sorgo, girassol, crotalária, guandu, nabo forrageiro e milheto). O experimento iniciou-se em 2002, e o presente estudo refere-se aos anos agrícolas 2007/2008 e 2008/2009. Avaliaram-se as quantidades de matéria seca e o acúmulo de nutrientes pelas culturas. As culturas com colheita de grãos na entressafra (milho, sorgo e girassol) produziram resíduos com menor quantidade de nutrientes acumulados e em menor quantidade de matéria seca, quando comparadas às culturas com trituração no florescimento (crotalária, guandu, nabo forrageiro e milheto). Milheto e crotalária apresentaram as maiores produções de matéria seca e os maiores acúmulos de nutrientes. O milheto mostrou os maiores acúmulos de K e Mg, e a crotalária, maiores acúmulos de N e P. As gramíneas cultivadas na entressafra apresentaram maior desenvolvimento quando em sucessão ao cultivo de soja no verão anterior, com maior produção de matéria seca de milheto e, também, maior produtividade de grãos de milho e sorgo.

In no-tillage systems, plant residues are used as soil cover to control soil erosion and promote nutrient cycling. The objective of this study was to evaluate the dry matter production and nutrient accumulation after different crop sequences in no-tillage. A field experiment was carried out on a Rhodic Eutrudox in Jaboticabal, SP, Brazil (48°18'W and 21°15'S). A randomized split-block design with three replications was used. The treatments were combinations of three summer crop sequences (soybean-corn rotation, corn monoculture and soybean monoculture ) with seven crops in the second growing season (maize, grain sorghum, sunflower, sunn hemp, pigeon pea, oilseed radish, and pearl millet). The experiment started in 2002 and in this study, the dry matter production and nutrient accumulation by crops were evaluated in the growing seasons 2007/2008 and 2008/2009. The grain crops in the second growing season (maize, sorghum and sunflower) produced residues with lower nutrient amounts and less dry matter than the off- season crops that were cut at full flowering (sunn hemp, pigeon pea, oilseed radish, and pearl millet). Pearl millet and sunn hemp produced most dry matter and highest nutrient accumulation. Pearl millet showed highest K and Mg accumulation and sunn hemp highest N and P accumulation. A better development of the grasses was observed in the second growing season when planted after summer soybean, resulting in higher dry matter production of pearl millet and higher grain yield of maize and grain sorghum.

3174 downloads Cited 6 times in SciELO

14.

Sequências de culturas em sistema de semeadura direta: II - decomposição e liberação de nutrientes na entressafra
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics

Marcelo, Adolfo Valente

; Corá, José Eduardo

; Fernandes, Carolina

Revista Brasileira de Ciência do Solo

Journal Metrics
- Sobre o periódico
- SciELO Analytics

nov 2012, Volume 36 N. 5 Pages 1568 - 1582

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Os nutrientes acumulados nos resíduos das culturas, ao serem liberados no processo de decomposição, retornam ao solo e podem ficar disponíveis às culturas em sucessão. O objetivo deste trabalho foi avaliar a decomposição e liberação de nutrientes de resíduos vegetais de espécies utilizadas na entressafra em diferentes sequências de culturas em sistema de semeadura direta. O experimento foi conduzido em Jaboticabal-SP (48° 18' W e 21° 15' S), em um Latossolo Vermelho eutrófico. O delineamento experimental foi em faixas, com três repetições. Os tratamentos constituíram da combinação de três sequências de culturas de verão (rotação soja-milho e monoculturas de milho e de soja) com sete culturas de entressafra (milho, sorgo, girassol, crotalária, guandu, nabo forrageiro e milheto). O experimento foi iniciado em 2002, e o presente estudo refere-se aos anos agrícolas 2007/2008 e 2008/2009. Avaliaram-se a decomposição e a liberação de nutrientes utilizando sacolas de decomposição, com coletas aos 15, 30, 60, 120 e 180 dias após a trituração das culturas. A cobertura do solo foi avaliada após a trituração das culturas e ao final do ano agrícola. Os resíduos de crotalária, milho, sorgo, girassol apresentaram menores taxas de decomposição. Crotalária, guandu, nabo forrageiro e milheto proporcionaram resíduos que liberaram maior quantidade de nutrientes quando comparados ao milho, sorgo e girassol. Crotalária e milheto destacaram-se como as culturas mais adequadas para cultivo na entressafra, em especial a crotalária, devido à baixa taxa de decomposição e à elevada quantidade de nutrientes liberados na decomposição, e o milheto, em razão da elevada quantidade de nutrientes remanescentes nos resíduos no final do ano agrícola. Sequências de culturas que envolveram cultivo de girassol na entressafra proporcionaram menor cobertura do solo pelos resíduos vegetais.

Nutrients accumulated in dry crop residues and released in the decomposition process return to the soil and may become available to subsequent crops. The objective of this study was to evaluate the decomposition and nutrient release of plant residues of different no-tillage crop sequences in the second growing season. A field experiment was carried out on a Rhodic Eutrudox in Jaboticabal, SP, Brazil (48°18'W and 21°15'S), arranged in a randomized split-block design with three replications. The treatments consisted of combinations of three summer crops sequences (soybean-corn rotation, corn monoculture and soybean monoculture) with seven crops in the second growing season (maize, grain sorghum, sunflower, sunn hemp, pigeon pea, oilseed radish, and pearl millet). The experiment was initiated in 2002 and this study assessed the 2007/2008 and 2008/2009 growing seasons. The decomposition of plant residues was evaluated 15, 30, 60, 120, and 180 days after management, using litter bags. The soil cover was evaluated immediately after chopping the residues and at the end of the growing season. The release rates from sunn hemp, maize, grain sorghum, and sunflower residues were lowest. Sunn hemp, pigeon pea, oilseed radish, and pearl millet released the highest amounts of nutrients during the decomposition period. Sunn hemp and pearl millet were most suitable as second season crops. The soil cover was poorest in the crop sequences with sunflower in the second growing season.

2226 downloads Cited 6 times in SciELO

15.

Laser beam welding tempered 300M ultrahigh mechanical strength steel
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics

Carvalho, Sheila Medeiros de

; Lima, Milton Sérgio Fernandes de

Journal of the Brazilian Society of Mechanical Sciences and Engineering

Journal Metrics
- Sobre o periódico
- SciELO Analytics

mar 2012, Volume 34 N. 1 Pages 18 - 23

Abstract: En | Text: En | PDF: En

AISI 300M ultrahigh strength steel has been used in a number of high demanding applications, such as the VLS Brazilian rocket project. This work intends to propose laser beam welding, with subsequent tempering, as a possible route for the fabrication of engineering pieces of this steel. A 2 kW fiber laser was used to produce welded coupons for metallographic, hardness and tensile strength tests. It has been shown that convenient laser parameters for a 3 mm thick plate are 50 mm/s welding speed and 1200 W laser power. However, both welded materials and heat-affected zones presented high hardness and negligible plastic deformation. In order to produce useful engineering parts, it was suggested a tempering treatment for 2 hours at temperatures of 200 or 400ºC. Tensile mechanical testing has shown that welded and tempered coupons presented both yield and maximum strengths comparable to the unwelded material. On the other hand, a maximum elongation of about 4% was obtained, in comparison with 12% from the bulk sample.

8230 downloads

Showing

itens per page

Page of 2 Next

Select one or more results

All Alphabetic

Results

Comparative chart Download CSV

Statistics of

Send result

To*

Use ; (semicolon) to insert more emails.

Send to email

This page

Selected records

All references (max. 300)

Your email

Subject

Comments

Export format:

RIS (for EndNote, ProCite, Reference Manager, RefWorks, Citavi, etc.)

BibTeX

Citation

CSV (for Excel, etc)

Export:

This page

Selected itens

All references (max. 2000)

Sem resultados

No documents were found for your search

Glossary and search help

You can enrich your search in a very simple way. Use the search indexes combined with the connectors (AND or OR) and specify more your search.

For example, if you want to search for articles about
cases of dengue in Brasil in 2015, use:
ti:dengue and publication_year:2015 and aff_country:Brasil

See below the complete list of search indexes that can be used:

Index code	Element
ti	article title
au	author
kw	article keywords
subject	subject (title words, abstract and keywords)
ab	abstract
ta	journal short title (e.g. Cad. Saúde Pública)
journal_title	journal full title (e.g. Cadernos de Saúde Pública)
la	publication language code (e.g. pt - Portuguese, es - Spanish)
type	document type
pid	publication identifier
publication_year	publication year of publication
sponsor	sponsor
aff_country	country code of the author's affiliation
aff_institution	author affiliation institution
volume	article volume
issue	article issue
elocation	elocation
doi	DOI number
issn	journal ISSN
in	SciELO colection code (e.g. scl - Brasil, col - Colômbia)
use_license	article usage license code

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
Email: scielo@scielo.org

All the contents of this site www.scielo.br, except where otherwise noted, is licensed under a Creative Commons Attribution License.
more »