Aplicação e viabilidade de micro-organisos potencialmente probióticos em embutido cárneo fermentado

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Propriedades físico-químicas e mecânicas, potencial bioativo e caracterização da interface dentina-cimento de cimentos endodônticos experimentais à base de cimento Portland associados à radiopacificadores micro e nanoparticulados

Pós-graduação em Odontologia - FOAR

Efeitos dos parâmetros de usinagem no acabamento superficial de materiais cerâmicos a verde

Pós-graduação em Engenharia Mecânica - FEB

Aumento de produtividade em uma célula produtiva com processo de usinagem utilizando conceitos Lean

In the current competitive and global scenario, companies in search for solutions that become the production every time more efficient is increasing and at the same time cost reductions and cost eliminations are becoming increasingly evident and needed. In an attempt to improve production, this work aims to compare benefits obtained using principles of philosophy Lean Manufacturing in an productivity growth of a cell from an auto parts sector industry. For that purpose it will be studied the history, the concepts and the tools of philosophy Lean Manufacturing, thus using the as a business-strategic tool to accomplish goals that the company expects to get greater competitiveness and quality. The efficiency of philosophy Lean Manufacturing was already confirmed through applying the concepts in the process which has been improved inside an auto parts sector industry. At last, comparative analyzes showed benefits obtained with the use of Lean Manufacture tool called VSM, Value Stream Map, which translates the Value Stream Map of a particular family of parts as the identification, minimization and elimination of waste identified

Análise do processo de fresamento de MDF em centro de usinagem CNC

Pós-graduação em Engenharia Mecânica - FEG

Freezing Distortions and Photoluminescence Property in PbMoO4 Micro Octahedrons: An Experimental and Theoretical Study

In this paper, we report a detailed structural and electronic characterization of PbMoO4 crystals by using a conventional hydrothermal (CH) method. The samples were characterized by X-ray diffraction (XRD), Fourier transform Raman (FT-Raman), field-emission gun scanning electron microscopy (FEG-SEM) and photoluminescence (PL) measurements. In addition, first-principles quantum mechanical calculations based on the density functional theory were employed in order to understand the band structure and density of states for the PbMoO4. Analysis of both theoretical and experimental results allows to rationalize the role of order-disorder effects in the observed green PL emissions in these ordered powders.

Citrus greening disease investigation using micro synchrotron radiation X-ray fluorescence in association with soft independent modelling of class analogy (SIMCA)

This study describes the use of micro synchrotron radiation X-ray fluorescence (µSR-XRF) to investigate citrus greening disease in sweet orange (Citrus sinensis) plants. An experiment using healthy plants as control and plants of the same variety infected with Candidatus Liberibacter asiaticus (CLas) was performed to verify variations of the mineral composition of citrus leaves. A µSR-XRF system using the D09B X-ray fluorescence beam line at the Brazilian Synchrotron Light Source (LNLS, Campinas, São Paulo State) was employed for this purpose. The data were analyzed using a chemometric tool called soft independent modelling of class analogy (SIMCA). The promising results from SIMCA models reinforce the evidence that plants infected by citrus greening (both asymptomatic and symptomatic) undergo alterations in their micro- and macronutrient compositions.

Aplicação de melhorias na organização e nos processos de usinagem pesada

Currently productivity is a concern in large firms and in heavy machining industries could not be otherwise . The issue of time in the process becomes a relevant and worthy of analysis point , especially that the setup time becomes a critical issue to be addressed . Due to the size of the equipment studied ( heavy machining ) and especially with regard to the characteristics of the machine tool and the parts to be machined , generally robust and large parts , the preparation of such parts shall be made accurately to the machining has a good result as planned . With the setup acting as a limiter of productivity growth in this sector , actions constantly in search of reducing downtimes and optimization are taken . This study aimed to conduct a study that confirms increased productivity by reducing the machining time , especially setup time and also with the implementation of organizational tools. Actions taken in heavy machining industry Arm L- 580 Liebherr company in Brazil specifically in CNC Boring PAMA Speedram 3000 were analyzed . Through a qualitative study using the method of case study , it was examined before and after the sector and reducing setup times . Evidencing the shares through figures and collection times . The end result of this analysis was to verify that through simple actions productivity and organization in the area were directly affected in a positive way , and supporting organizational change throughout training were taught to be incorporated into the company culture

Produção otimizada de biocelulose utilização de biologia molecular de micro-organismos

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Construção de um equipamento de ensaio de desgaste micro abrasivo por esfera rotativa fixa para análise do desgaste em revestimento duro aplicado por soldagem

Pós-graduação em Engenharia Mecânica - FEIS

Micro-extração em fase sólida (SPME) in situ e comparação de compostos voláteis em variedades de manga (Mangifera indica L.) resistentes e suscetíveis à mosca-das-frutas Anastrepha obliqua (Macquart) (Diptera: Tephritidae)

Pós-graduação em Química - IQ

Micro-arc oxidation as a tool to develop multifunctional calcium-rich surfaces for dental implant applications

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Influence of standard load micro and nanopatterned in surface roughness of bleached teeth and submitted to different surface treatments?

The aim of this study was evaluate the dental enamel after whitening treatment with Opalescence Boost PF® 38%, correlating the structural alterations in the surface of the enamel with its respective pH and verify if whitened teeth submitted to different finishing and polishing techniques show similar surface texture to healthy teeth (control group). Sixty premolars were divided in 6 groups (n = 10), which had been immersed in artificial saliva during all the experiment. Protocol whitening was performed according to the manufacturer recommendations, and then the specimens were submitted to different polishing technique with Sof-Lex Pop On® disks, Flex Diamond® felt disks using two different micrometric polishing pastes (Enamelize® and Diamond Polish®) and two nanometric polishing pastes (Lummina-E Diamond and Lummina-E Alumina), according to the groups. Representative specimens were analyzed in scanning electronic microscopy (SEM). Whitening gel used in this experiment had modified the morphologic aspect of the enamel surface. It was found that two nanometric polishing pastes (G5 and G6) promoted a less rough surface compared to control group even after the whitening process.

Calcium silicate-based cements associated with micro-and nanoparticle radiopacifiers: physicochemical properties and bioactivity

The aim of this study was to evaluate the physicochemical properties and bioactivity of two formulations of calcium silicate-based cements containing additives (CSCM) or resin (CSCR), associated with radiopacifying agents zirconium oxide (ZrO2) and niobium oxide (Nb2O5) as micro- and nanoparticles; calcium tungstate (CaWO4); and bismuth oxide (Bi2O3). MTA Angelus was used as control. Methods. Surface features and bioactivity were evaluated by scanning electron microscopy and the chemical composition by energy dispersive X-ray spectrometry (EDS-X). Results. CSCM and CSCR presented larger particle sizes than MTA. Hydroxyapatite deposits were found on the surface of some materials, especially when associated with the radiopacifier with ZrO2 nanoparticles. All the cements presented calcium, silicon, and aluminum in their composition. Conclusion. Both calcium silicate-based cements presented composition and bioactivity similar to MTA when associated with the radiopacifiers evaluated.

Radiopacity and cytotoxicity of Portland cement associated with niobium oxide micro and nanoparticles

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)