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Search Results: 1 - 10 of 69522 matches for " Carlos Frederico;Batista Filho "
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Patogenicidade de Verticillium lecanii ao pulg?o-do-pinus
Loureiro, Elisangela de Souza;Oliveira, Nádia Cristina de;Wilcken, Carlos Frederico;Batista Filho, Antonio;
Revista árvore , 2004, DOI: 10.1590/S0100-67622004000500017
Abstract: the objective of this work was to evaluate the pathogenicity of the entomopathogenic fungus verticillium lecanii isolate ibcb 473 to the aphid cinara atlantica (hemiptera: aphididae), insect pest in pinus spp plantations. the trials were conduced in a completely randomized design, treatments with 5 repetitions, and each repetition consisting of one petri dish (9 cm of diameter) containing 10 nymphs. suspensions adjusted to concentrations of 1,0 ' 106; 0,5 ' 107; 1,0 ' 107; 0,5 ' 108 e 1,0 ' 108 conidia/ml were tested by spraying 1ml over the nymphs. sterilized water was used as control treatment. the petri dishes were maintained at 25±1°c, 70±10% rh and 12-hour photophase. the evaluations were carried out daily, recording the individual mortality of each treatment. the best concentration was 1,0 x 108 conidia/ml with mortality of 86,0% after five days. lt50 for each concentration was 5,82; 5,24; 4,60; 4,34 and 3,83 days, respectively.
Mediastinite no Hospital de Base do Distrito Federal: incidência em seis anos
SCHIMIN, Luiz Carlos;BATISTA, Raelson de Lima;MENDON?A, Frederico Carlos Cordeiro de;
Revista Brasileira de Cirurgia Cardiovascular , 2002, DOI: 10.1590/S0102-76382002000200008
Abstract: we review all hospital recorders of the patients that was submitted to cardiac surgery with sternotomy at the hospital de base do distrito federal in period of six years. fifteen patients (1.09%) developed mediastinitis in this period in a total of 1388 cardiac surgeries between january 1995 and march 2001. sex, age, type of surgery, respirator time, icu permanence, use of antibiotics and type of bacteria isolated were some variables analyzed.
Mediastinite no Hospital de Base do Distrito Federal: incidência em seis anos
SCHIMIN Luiz Carlos,BATISTA Raelson de Lima,MENDON?A Frederico Carlos Cordeiro de
Revista Brasileira de Cirurgia Cardiovascular , 2002,
Abstract: Realizada análise dos prontuários de pacientes adultos submetidos à opera o cardíaca com esternotomia no Hospital de Base do Distrito Federal no período de seis anos. Determinou-se incidência de mediastinite em 15 (1,09%) pacientes, dentre 1388 opera es cardíacas consecutivas com esternotomia, realizadas no período de janeiro de 1995 e mar o de 2001. Diversas variáveis foram consideradas, como sexo, idade, tipo de opera o, tempo de permanência em respirador, tempo de permanência em Unidade de Terapia Intensiva, uso de antibióticos e germes isolados em culturas de ferida operatória.
Determina??o de fatores de empilhamento através de fotografias digitais
Soares, Carlos Pedro Boechat;Ribeiro, José Carlos;Nascimento Filho, Moacir Batista do;Ribeiro, José Carlos Lopes;
Revista árvore , 2003, DOI: 10.1590/S0100-67622003000400007
Abstract: the objective of this work was to analyze the accuracy of piling factor estimates using digital photography and software especially developed for this purpose. six trucks carrying five piles each, owned by acesita energética ltd., were used in this research. the analysis revealed that the average difference between the factors determined by the photographic method and the actual factors was approximately 3.2%, with a tendency for over estimation of the values obtained by the photographic method. the "t" test analysis suggested that the differences observed between these factors were mainly due to the the poor piling up of the wood.
Determina o de fatores de empilhamento através de fotografias digitais
Soares Carlos Pedro Boechat,Ribeiro José Carlos,Nascimento Filho Moacir Batista do,Ribeiro José Carlos Lopes
Revista árvore , 2003,
Abstract: O objetivo deste trabalho foi analisar a exatid o de estimativas de fatores de empilhamento obtidas através de fotografias digitais e de software especialmente desenvolvido para esta finalidade, em pilhas sobre caminh es. Para isto, foram utilizados seis caminh es com cinco pilhas cada um, pertencentes à ACESITA ENERGéTICA Ltda. Após as análises, verificou-se que a diferen a média entre os fatores obtidos pelo método fotográfico e os fatores reais foi da ordem de 3,2%, com tendência de superestima o dos fatores obtidos pelo método fotográfico. Pelo teste "t", verificou-se, também, que os fatores obtidos pelo método fotográfico diferiram dos fatores reais, principalmente devido ao mau empilhamento da madeira.
Doppler ultrasound-guided percutaneous thrombin injection for treating femoral pseudoaneurysms
Frederico Celestino Miranda,Rodrigo Gobbo Garcia,Carlos Leite Macedo Filho,Guilherme Falleiros Mendes
Einstein (S?o Paulo) , 2008,
Abstract: Objective: To evaluate the success rate of percutaneous injectionof thrombin, guided by Doppler ultrasound to treat femoralpseudoaneurysms. Methods: Twenty-three patients withfemoral pseudoaneurysms were treated with ultrasound-guidedthrombin injection, between September 2003 and October 2007.Pseudoaneurysm size, dose of thrombin used, result of therapy andcomplications were prospectively documented. Other aspects analyzedincluded the type of procedure that caused the pseudoaneurysm(diagnostic catheterization, angioplasty, stent placement), size ofendovascular introducer, use of hemostatic device and body massindex (BMI) of patients. Results: A total of 27 injections of thrombinwere performed. The mean transverse diameter was 3.5 cm. Themean dose of thrombin injected was 666.7 IU. The primary successrate ranged from 19 to 23 (83%). Reperfusion occurred in onepseudoaneurysm. The rate of secondary thrombosis was four in four(100%). No thromboembolic, infectious or allergic complicationsoccurred. Conclusions: Ultrasound-guided percutaneous thrombininjection is the best method for treating femoral pseudoaneurysmscaused by endovascular procedures. It presents high rates of success,low recurrence rates and almost no complications.
Integration of Fogo Player and SAGE (Scalable Adaptive Graphics Environment) for 8K UHD Video Exhibition  [PDF]
Jane de Almeida, Guido Lemos de Souza Filho, Carlos Eduardo Coelho Freire Batista, Lucenildo Lins de Aquino Junior, Jose Ivan Vilarouca Filho, Manoel Silva Neto, Cicero Inacio da Silva, Leandro Ciuffo, Iara Machado, Clayton Reis da Silva
Journal of Computer and Communications (JCC) , 2014, DOI: 10.4236/jcc.2014.212006
Abstract:

After 4K, 8K UHD resolution can be considered the new challenge for film, visualization and television. Due to the dimension of 8K image, the remote micro and macro images are considered appropriate for visualization with scientific and educational purposes. This article describes the implementation of the 8K video plug-in to play UHD videos into the SAGE, a collaborative environment for the advancement of scientific research and education developed by EVL (Electronic Visualization Laboratory), upgrading its current resolution for video playing. It also presents the challenges of producing 8K content, the development of the code and introduces the features to view 8K ultra high definition videos in multiple tiles through the use of low cost computer clusters. The SAGE 8K video plug-in implementation was made possible because of the previous development of the Fogo Player, a system to run 4K and 8K content. The results were successfully presented at the CineGrid International Workshop 2013 in San Diego.

Caracteriza??o de camadas nitrocementadas por plasma produzidas no a?o inoxidável austenítico AISI 316L
Casteletti, Luiz Carlos;Fernandes, Frederico Augusto Pires;Lombardi-Neto, Amadeu;Picon, Carlos Alberto;Tremiliosi-Filho, Germano;
Rem: Revista Escola de Minas , 2010, DOI: 10.1590/S0370-44672010000100024
Abstract: hardness and consequently wear resistance of austenitic stainless steel can be highly increased, without losing corrosion resistance, by plasma nitrocarburizing surface treatment. in this re-search, an aisi 316l stainless steel was plasma nitrocarburized at 450°c, and the obtained layers were characterized by optical microscopy, microhardness and micro-wear tests. it was verified that the layer is composed of chromium nitrides precipitates and beneath them, a nitrogen rich expanded austenite, with hardness around 850hv. the total average thickness of the layer was about 40μm and presented good uniformity. the wear resistance of the layer was much higher than that of the substrate.
Avalia??o da resistência ao desgaste de a?os inoxidáveis endurecíveis por precipita??o nitretados
Casteletti, Luiz Carlos;Fernandes, Frederico Augusto Pires;Silva, Eder Bernardes Da;Picon, Carlos Alberto;Tremiliosi-Filho, Germano;
Rem: Revista Escola de Minas , 2010, DOI: 10.1590/S0370-44672010000100021
Abstract: plasma nitriding is an effective treatment to increase the surface hardness of stainless steel and may be performed in temperatures below those used in conventional nitriding procedures, thereby avoiding the formation of chromium nitrides that would deteriorate the corrosion resistance of the material. the precipitation hardened stainless steels were developed after the second world war as a result of the needs of the aerospace industry, which needed materials resistant to corrosion at higher temperatures. in this research, a precipitation hardening nb stainless steel and a ph 13-8mo precipitation hardened stainless steels with cu were produced, for purposes of comparison in terms of the production of nitrided layers and abrasive wear resistances. nb proved to be an effective hardening precipitate former, with the hardness peak occurring within minutes of treatment. in both steels, nitrided layers with good uniformity were obtained. the wear resistance of the nitrided nb steel was much higher than that presented by the ph 13-8mo nitrided steel.
Estudo do mecanismo de corros?o por pites em água do mar de a?os inoxidáveis supermartensíticos microligados com Nb e Ti
Picon, Carlos Alberto;Fernandes, Frederico Augusto Pires;Tremiliosi-Filho, Germano;Rodrigues, Cesar Augusto D.;Casteletti, Luiz Carlos;
Rem: Revista Escola de Minas , 2010, DOI: 10.1590/S0370-44672010000100011
Abstract: supermartensitic stainless steel (smss) is increasingly used in harsh environments due to its good weldability and mechanical properties at higher temperatures and high resistance to corrosion under stress. applications in oil exploration demand a superior combination of properties and duplex and superduplex stainless steels have been widely applied in this area, despite their high costs. smss provides a technical and economical alternative for these steels. in this research, additions of nb and ti were made in order to minimize the sensitization effect and to promote grain refinement, studying the microstructural aspects and the pitting corrosion resistance in seawater. pitting formation and evolution were accompanied by corrosion testing, optical and electronic microscopy. the ti alloyed steel showed the best corrosion performance, with the greatest corrosion potential and the lowest pitting potential. the steel with nb addition presented a higher corrosion potential than that of the steel without additions but had a lower pitting potential.
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