Jamel Alexander

10 Questions 18 Answers 0 Followers

Questions related from Jamel Alexander

Statistics: Is it worth using a t-test on pre and post survey data with 12 or less responses?

Is it worth using a paired t-test on pre and post survey data with 12 or less responses? Or should one rely more on the mean and standard deviation of the two data sets to evaluate the survey...

28 April 2024 8,781 8 View

Hi All, I am looking for a great root cause analysis guidebook on common failures in industrial plant materials. Does anyone know of any?

It would be nice to have a root cause failure analysis guidebook to validate some of the common failures I am witnessing in pipes and other materials on an industrial plant near me. I remember an...

11 January 2018 8,123 3 View

How do we get more minorities involved in STEM classroom lectures within college?

I have taught physics and engineering courses using several methods, and I see that many minority students don't like to get engaged in classroom lectures/discussions. I have done demonstrations,...

06 July 2017 2,850 8 View

What are the strain ranges of several types of Piezoresistive Materials?

Hi, I am trying to find the strain ranges (in % strain or microstrain) of the piezoresistive strain gauges listed below. I was wondering if someone could point me in the right direction, a Table,...

14 November 2016 8,082 1 View

Does anyone know if there are any XRD data on FC0205 Copper Steel Powder?

Hi, I was wondering if anyone knew of any XRD data on nanocrystalline copper steel FC0205 powder? I tried indexing the peaks and I'm getting FCC in one case and simple cubic using a different...

20 October 2016 5,265 4 View

Where can I find a database with information on the ACT standardized test from current and past years?

I am curious to look at a trend in ACT data over the past 5 years or so. Is there a database that exist out there somewhere?

29 April 2016 6,362 2 View

What makes thermoplastics and thermosetts tension and compression modulus values different in comparison to metals which do not change?

I've recently been reading some literature and found that in thermoplastics and thermosets that the addition of nanofiller often increases the modulus in both tension and compression.What causes...

09 March 2016 7,583 4 View

Is it possible to perform a sensitivity analysis of CNT/Epoxy films using ANSYS?

Hi All, I am curious to know if I can perform a sensitivity analysis of CNT/Epoxy films using ANSYS? I know it's possible to figure out the properties of the epoxy, but I am not sure on how to...

16 February 2016 2,863 3 View

Is there a releasing agent for releasing epoxy samples from glass substrates prior to curing?

Hi All, I am working with CNT/epoxy samples. Post curing the samples on glass substrates on hot plates, I am finding it extremely difficult to remove the sample. Is any familiar with removing...

18 January 2016 185 5 View

How can I filter carbon nanotubes post sonication?

I want to sonicate carbon nanotubes in acetone and are looking for a method to filter the carbon nanotubes so that I can extract a certain weight percentage to place them into some resin. Also, is...

11 December 2015 3,226 2 View