1. Optimization of shells modeled using NURBS subjected to a dynamic loading condition

Abstract This study presents an optimization method for the thickness of shell elements subjected to dynamic loads. Structural analyses were carried out using the finite element method. The analyzed domains were modeled using NURBS, and meshes were generated using a transformation of the parametric domain into the geometric domain via a geometric function. T

REM, Int. Eng. J.. Publicado em: 20/12/2019

2. Checklist of the fishes from Jamari River basin, in areas under influence of dams, Rondônia, Brazil

Resumo: O rio Madeira é o mais extenso afluente do rio Amazonas e possui a maior biodiversidade de peixes do mundo. Em sua margem direita, o rio Madeira recebe o rio Jamari, no qual foi construída a primeira usina hidrelétrica (UHE) do estado de Rondônia, a UHE Samuel. Além desta, outros barramentos foram construídos no rio Jamari e em seus afluentes,

Biota Neotrop.. Publicado em: 13/12/2019

3. Polypropylene meshes coated with chitosan/polyethylene glycol for the reconstruction of the abdominal wall: an experimental study in rats

RESUMO O objetivo deste estudo foi caracterizar as reações tissulares desencadeadas pela tela de polipropileno revestida com o filme de quitosana e polietilenoglicol e verificar se ela é capaz de prevenir a formação de aderências peritoneais. Um defeito na parede abdominal dos ratos foi realizado, e as telas de polipropileno revestidas com quitosana/po

Arq. Bras. Med. Vet. Zootec.. Publicado em: 10/10/2019

4. Comparative study of four different types of intraperitoneal mesh prostheses in rats

Abstract Purpose: To compare four types of mesh regarding visceral adhesions, inflammatory response and incorporation. Methods: Sixty Wistar rats were divided into four groups, with different meshes implanted intraperitoneally: polytetrafluoroethylene (ePTFE group); polypropylene with polydioxanone and oxidized cellulose (PCD); polypropylene (PM) and polyp

Acta Cir. Bras.. Publicado em: 12/09/2019

5. Phosphorus acquisition by wheat from organic and inorganic sources labelled with 32P and 33P radioisotopes

ABSTRACT: Investment in soil phosphorus (P) capital in the tropics is often constrained by poor availability of mineral fertiliser to small-scale farmers. Consequently, new sustainable agricultural cropping strategies are required to maintain fertility and maximise crop yields. The co-application of Tithonia diversifolia (Tithonia) green manure and mineral f

Sci. agric. (Piracicaba, Braz.). Publicado em: 05/09/2019

6. Comparative study of peritoneal adhesions after intraperitoneal implantation in rats of meshes of polypropylene versus polypropylene/polyglecaprone versus polyester/porcine collagen

Abstract Purpose To Compare the extent and intensity of adhesions formed between the intra-abdominal organs and the intraperitoneal implants of polypropylene mesh versus polypropylene/polyglecaprone versus polyester/porcine collagen used for correction of abdominal wall defect in rats. Methods After the defect in the abdominal wall, thirty Wistar rats we

Acta Cir. Bras.. Publicado em: 19/08/2019

7. Treatment of Blowout fracture with video-assisted surgery

RESUMO As fraturas posteriores do assoalho orbital são desafiadoras, visto que a incompleta visualização do defeito por meio dos acessos cirúrgicos convencionais poderá comprometer o resultado cirúrgico. O uso do endoscópio como método auxiliar durante as reconstruções orbitais pode ser considerado uma ferramenta de grande importância principalmen

Rev. bras.oftalmol.. Publicado em: 01/07/2019

8. In vitro analysis of a local polymeric device as an alternative for systemic antibiotics in Dentistry

Abstract The development of a biodegradable material with antimicrobial properties for local applications is required in the prevention and treatment of infectious diseases. The objective of this study was to produce blends of poly-L-lactide acid (PLLA) synthetic polymer associated with several antimicrobials, as an alternative in the prevention and treatmen

Braz. oral res.. Publicado em: 07/12/2017

9. Sonic anemometry and sediment traps to evaluate the effectiveness of windbreaks in preventing wind erosion

ABSTRACT The present work analyzes the effectiveness of windbreaks against wind erosion through the study of streamline patterns and turbulent flow by means of sonic anemometry and sediment traps. To this end, windbreaks composed of plastic meshes (7.5 m long and 0.7 m tall) were used. Windbreaks are a good means to reduce wind erosion, as they produce a pos

Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-12

10. Effect of platelet-rich plasma on polypropylene meshes implanted in the rabbit vagina: histological analysis

ABSTRACT Purpose The polypropylene mesh (PPM) is used in many surgical interventions because of its good incorporation and accessibility. However, potential mesh-related complications are common. Platelet-rich plasma (PRP) improves the healing of wounds and is inexpensive. Thus, the purpose of this study was to analyze the effect of the PRP-gel coating of

Int. braz j urol.. Publicado em: 2017-08

11. Axial Crushing of Concentric Expanded Metal Tubes Under Impact Loading

Abstract This paper investigates the axial crushing response of concentric expanded metal tubes under impact loading. The study is conducted by means of nonlinear finite element simulations, considering the speed of deformation and the size of the expanded metal cells. In the analysis, two tubes are placed concentrically and then axially crushed with an impa

Lat. Am. j. solids struct.. Publicado em: 2017-06

12. Finite Element Modeling and Experimental Verification of Nitriding Process in S30C Steel

A mathematical model has been developed to simulate the nitriding process of plain carbon steel, considering the simultaneous diffusion of nitrogen in different iron-nitrogen (Fe-N) phases and the precipitation dynamics of γ' and ε iron-nitride. The model can predict the distribution of nitrogen concentration, volume fraction of Fe-N phases and hardness. F

Mat. Res.. Publicado em: 16/02/2017