Pay grades as an ordinal or continuous variable?

I have a data set with paygrades from 3 to 16. The difference between each pay grade was probably not exactly the same, but the differences are very unlikely to have been big. From a different...

22 September 2020 1,248 3 View

Does anyone know the amino acid sequence of rat NRF-2?

Hi, I'm trying to find a conjugated anti-rat Nrf2 monoclonal antibody for flow cytometry analysis in rat models. Unfortunately, i'm yet to find a conjugate that has been tested in rat samples. The...

03 March 2020 5,541 6 View

What are the recent advances in energy harvesting solutions for Wireless Sensor Networks (WSN)?

One of the major challenges in WSN are the energy limitations. What are the most recent advances in energy harvesting solutions for Wireless Sensor Networks (WSN)?

06 February 2019 9,101 4 View

Is the weight of evidence (WOE) and the information value (IV), the most recommended method for the determination of predictor variables? Why?

I have a research project on the analysis of dengue cases vis a vis socio-demographic and physical attributes. I feel that there might be other methods that I can consider.

17 November 2018 7,412 1 View

Comparing means of items on a survey, between subjects or within?

If I administered a survey to participants where I had each participant rate 21 skills on their level of importance (using the same 5-point Likert scale) to a participant's job position, how...

28 August 2018 4,780 5 View

Is it necessary to synchronize cells in a cell cycle arrest assay?

I am currently planning to work on cell cycle arrest assays. I saw different literature have slightly different methods on cell synchronization. Some used serum free media, while some used 1%FBS,...

24 June 2018 4,922 2 View

What is the typical nitrogen consumption for a fume hood in an organic synthesis lab?

I'm setting up a new organic chemistry lab in an older building that does not have house nitrogen. Considering a generator instead of gas cylinders to supply the nitrogen gas needs for our...

23 April 2018 3,164 1 View

How do I set up a restriction digestion reaction when my DNA concentration is very low?

I want to carry out a single RE digestion using Thermo scientific's NcoI. The reaction protocol requires a DNA concentration of 1ug/uL in a 20uL reaction. My DNA concentration is 1ug in 21.3ul....

13 November 2016 9,400 5 View

Lymphocyte Separation Medium vs ACK Lysing Buffer for removing red blood cells from pelleted Blood?

25 October 2016 3,693 3 View

Distribution coefficient of benzoic acid in benzene and water?

How to write a report on distribution coefficient of benzoic acid between benzene and water

08 September 2016 8,397 2 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View

The most suitable method to calculate the stress intensity factor in the presence of contact between the crack lips?

I'm trying to study cracked structures under a compressive load taking into account contact between the crack lips. I would like to know if the method of extrapolation by displacement remains...

21 February 2021 8,694 4 View

How to construct different filler shape in MD simulations?

Is there any way to construct different initial filler shapes like triangle, square, rectangle, pillar, and tube in any simulation software.

20 February 2021 1,750 1 View

How to calculate stress at the cross section of spherical particles within a matrix?

Hi all, I am currently working on some background calculations before I start a new project related to metal matrix particulate composites. I am trying to find a way to calculate the stress at...

19 February 2021 8,503 3 View

Drop weight impact testing machine for composites?

Dear all, I hope everyone is safe and healthy I do have a question please. Where can I find a drop-weight impact testing machine to test fiber reinforced polymer composite plates (CFRP and GFRP)...

17 February 2021 3,820 3 View

Can bio-decomposer be a successful alternative to reduce residue burning?

To maintain the proper crop plan most of the times there is not enough time to make the field ready for the next crop. In this particular context , can bio-decompser be a solution? What about...

16 February 2021 7,068 24 View

What is the harmless way of cutting epoxy filled nanocomposite ?

I want to cut epoxy filled nanocomposite for FE-SEM analysis. What is the best way to cut it without resulting in any cracks or change in position or alignment of the particle reinforcement ? Also...

28 January 2021 7,084 5 View

Which software is the best to model a non-linear concrete (ABAQUS, ANSYS,ADINA, ATENA, etc.)?

What is the best finite element modeling software packages for modeling non-linear and fracture analysis of CONCRETE? I've had some with ABAQUS standart/explicit, but I would like to learn if...

27 January 2021 330 6 View

Do we need to keep looking for the fracture angle after the Puck's failure initiation is reached?

Greetings to everyone, Our team is currently working on the development of a VUMAT code in Abaqus for composite modelling using the Puck's failure theory as damage initiation criteria. Currently...

20 January 2021 6,367 1 View