Does anybody have a table of rolling friction coefficients? I can't find the one I'm looking for. I have a vertical door opening (similar to a garage door) where there are UHMW polymer rollers rolling in a track. I read somewhere that the coeff of rolling frict would be close to teflon on...
Minor in Polymer or not??
Hello guys, been a while since I've been in here.
Well I'm a sophomore student studying chemical engineering on a full scholarship offered by the oil company where I live. After graduation I'll have to work for the oil company, equal to the number of years I study...
1. Suppose a freely orienting chain with 1000 segments each of length 7 AO is subjected to a force on its ends of 10-5 N. What will be the average separation of the chain ends?
2. How large a force is needed to elongate the following piece of polymer to a length of 2.54 cm?
Original length =...
Homework Statement
Please help me calculate the center of mass of the polymer (radius) from atomic coordinates (more than 2000) given in Armstrongs. Can anyone help with the formula? I need to calculate the radius of gyration of the polymer. Thanks.
Homework Equations
The Attempt...
Homework Statement
1D polymer, fixed segment length a
If the angle between segment j and j+1 is 0, the energy is 0
If the angle is pi the energy is +2J.
Compute the correlation function <s_i s_{i+n}>, where s_j = \pm 1 denotes the direction of segment j
Find the persistence length Lp...
Dear Members
Greetings. I joined this forum today. I have done my BE(Electrcial) followed by MS(Telecommunications) and a 9 months Course on Systems Enginering from UK. Presently i am in South Korea on a Scholarship for my PhD in Nanoscience and Tech (Here is the problem).
I have no...
Why is the flow behaviour or viscosity important in the case of polymer?
This question is given when we had lecture about flow behaviour, viscosity, and rheology.
Thanks a lot!
Hi,
Why is it better for a cell to synthesize polymers such as proteins carbohydrates by linking together monomers than to synthesize them from scratch>
I believe it is because it would take too much energy to link them together from scratch. Since they already have these monomers the...