Mechanical Engineer
Mostrando 1-7 de 7 artigos, teses e dissertações.
-
1. Evaluation of shrinkage and creep of self-compacting concrete for application in precast elements / Avaliação de retração e fluencias do concreto auto-adensavel para aplicação em elementos pre-moldados
This project analyzed, theoretically and experimentally, the mechanical and rheological behavior of the selfcompacting concrete (C.A.A.), specially its features according to slow deformation, shrinkage and creep, and its applicability in precast elements. Two compositions of concrete of different classes of resistance were developed, 35 MPa and 55 MPa. In th
Publicado em: 2009
-
2. Estudo de obtenÃÃo de Ãgua do processo de desidrataÃÃo da gipsita na produÃÃo de gesso
No PÃlo Gesseiro do Araripe, Semi-Ãrido Pernambucano, popularmente chamado de sertÃo, estÃo instalados cerca de 100 fÃbricas de produÃÃo de gesso que produzem em torno de 600 mil toneladas de gesso/ano, que representa 85% da produÃÃo nacional. AlÃm disto, estÃo em processo de exploraÃÃo 47 minas de Gipsita, matÃria-prima para produÃÃo de gess
Publicado em: 2008
-
3. Desenvolvimento de um equipamento para ensaios em embalagens plÃsticas flexÃveis
Este trabalho teve como objetivo o desenvolvimento de um equipamento para ensaios de verificaÃÃo de desempenho mecÃnico de embalagens plÃsticas flexÃveis, na forma de sacos plÃsticos, segundo os requisitos da norma NBR 9191. O uso do equipamento pode contribuir para a adequaÃÃo metrolÃgica dessas embalagens, que tÃm apresentado desempenho mecÃnico
Publicado em: 2005
-
4. Development of a manager system for calculation of machine elements for mechanical projects. / Desenvolvimento de um sistema computacional de auxílio ao cálculo e desenho de elementos de máquinas.
With a market more and more demanding in terms of efficiency and costs, one has the need to integrated all the possible information of a company, helping in this way to guarantee the quality of products and services. Moreover, nowadays there are plenty of resources to systematize the repetitive and tedious tasks, such as calculating a shaft or a pair of gear
Publicado em: 1999
-
5. Operative treatment of aneurysms and Coanda effect: a working hypothesis 1
The Coanda effect has been known to mechanical engineers for many decades. Consideration of this effect both by a neurosurgeon and a mechanical engineer revealed that it might be of importance during the operative treatment of intracranial aneurysms. If a jet effect were produced in the stream of blood after clipping an aneurysm, most of the flow of blood mi
-
6. Macroporous polymer foams by hydrocarbon templating
Porous polymeric media (polymer foams) are utilized in a wide range of applications, such as thermal and mechanical insulators, solid supports for catalysis, and medical devices. A process for the production of polymer foams has been developed. This process, which is applicable to a wide range of polymers, uses a hydrocarbon particulate phase as a template f
The National Academy of Sciences.
-
7. Engineering asymmetric vesicles
Vesicles are bilayers of lipid molecules enclosing a fixed volume of aqueous solution. Ubiquitous in cells, they can be produced in vitro to study the physical properties of biological membranes and for use in drug delivery and cosmetics. Biological membranes are, in fact, a fluid mosaic of lipids and other molecules; the richness of their chemical and mecha
National Academy of Sciences.