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I have made a preliminary crowned spur gear model but i have great difficulty in controlling the geometrical dimensions. require expert's suggestion on this modelling using script...

Three-dimensional inverse design method, where the 3D blade profile is designed for a specified blade loading distribution, has been applied for designing a propeller fan rotor with high efficiency and low noise.

Register: Wednesday, May 24th, 2017 - 9:00 am PDT (West Coast) / 12:00 pm EDT (East Coast) / 5:00 pm BST (UK) / 6:00 pm CEST (Europe)

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hello,

i want to introduce a pressure  in a mass diffusion step.

 i have a flow with some velocity absorbed by a composite material

any help is appreciated

thanks

Dear engineers and scientists,

Measuring and artificially producing hydroxyl radicals is relatively new research with great challenges due to short half life. I have asked this question on many forums to gather as much information as I can and my question is:

How can we measure hydroxyl radical concentration? I am only interested in airborne concentration, hydroxyls in water and cells are not relevant to my research.

Position Description: 

A postdoctoral associate/research scientist position in the area of advanced synthesis and characterization of materials and nanocomposites is available at Rice University. The successful candidates will work in a highly inter-disciplinary and stimulating environment.

Job Duties and Responsibilities: 

There are 2 openings for Ph.D. students in the School for Engineering of Matter, Transport & Energy at the Arizona State University. ASU has been ranked (#1) as the most innovative school by U.S. News for making rapid improvements in terms of curriculum, faculty, students, campus life, technology, and facilities. The Materials Science and Engineering program at ASU is one of the most respected programs in the United States (https://semte.engineering.asu.edu/materials-science-engineering/).

Good mourning everybody, i need to use cohesive element in an FE analysis using the FE code Abaqus, i'll attach a figure in which i'll show the cohesive low (that is a trapezoidal chape cohesive low) i want to use since a similar form i use in another study using an analytical method based on the integral equation approach, the cohesive from is inspired from the well known Dugdale Model this simple model can be easily used and incorporated in an analytical method, my quation is shall i implement this cohesive trapezoidal from via a user element subroutine or use an existing cohesive model i