How to determine the population and sample size?

15 February 2021 9,340 4 View

A question about Conquest or WebCSD search in-house databases?

Dear all I want to ask help in searching about all crystal structures that contain : Zn/W/P or Zn/W/Si Can anybody help me in case of having access to conquest or WebCSD and his/her help will be...

25 August 2020 1,883 3 View

What are the light quality,quantity and intensity requirements for growing mango under greenhouse or poly houses ?

What are the light quality,quantity and intensity requirements for growing mango under greenhouse or poly houses ?

17 August 2020 2,823 1 View

Find location (x,y) where expression is satisfied in COMSOL ?

for 1-D axisymmetric model. I need to find the coordinate r where the variable x is equal to x0 for all times? find(r, x==x0) .... What a COMSOL operator should I use for that?

02 July 2020 5,098 8 View

A question about Mendely bibliography ?

Dear all, My question is how to do the attached citation bibliography using Mendeley? i.e. merging many references in one number and letter of each.

28 June 2020 5,084 2 View

Can pilot study done under the same sampling frame of parent research?

12 April 2020 5,110 3 View

Does anyone know appropriate free software or an online soft tool for computational prediction of IC50?

I am currently interested in calculating (computationally) the value of IC50 for some of organic compounds, so if anyone knows any free software or online tool, tell me, please. Also, I have...

09 December 2019 6,184 4 View

What is the suitable software for estimating the synthetic accessibility of organic compounds?

Hello all, I just finished designing new compounds using computer-aided method, and I want to know if they can be synthetically accessible or not, actually, I am currently looking for a suitable...

15 November 2019 8,584 10 View

Can anyone tell me is there any alternative material to quartz wool can be used for packing of the combustion column of CHNS/O analyzer ?

03 July 2019 7,332 1 View

How to make a baseline plot (Insar)?

Hi. I've used SNAP to get the baselines and select the master image for the interferograms. But how do I do a baseline plot (other than a scatter plot) so that the possible combinations with the...

01 May 2019 8,821 3 View

Is there any tutorial for comsol general projections?

Hi, im trying to make a projection in a 3d comsol model. I have a non uniforme chanel and my intention is to get the average tempreture in the y-z cross section and se the average tempreture...

02 March 2021 4,624 4 View

Is it possible to do piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch?

How to do Piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch? Piezoelectric coupling between the rectangular substrate and rectangular...

02 March 2021 9,833 3 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

Issues with Permeabilization during Flow Cytometry?

Hello Everyone. Currently I am working to characterize macrophages in the myocardium after ischemia-reperfusion injury in rats. Due to the low total cell number isolated from rat hearts I can...

01 March 2021 3,867 3 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

How can i resolve the "final solutuin is not converged" error in Comsol for my heat transfer simulation??

I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...

28 February 2021 8,626 3 View

Necessary tube lenght to cool Natural gas in a dry-ice cooling bath?

I have a tank which contains natural gas at 250 Bar and 293 Kelvin. I want to cool the gas in a dry-ice cooling bath to about 195 Kelvin. The gas will flow in a copper-tube through the bath with a...

27 February 2021 8,128 1 View

Exit velocity of natural gas from pressurized tank?

Hi Guys. I'm a mechanical engineer and have a bit trouble, would be very glad if you could help me with my questions. I have a pressurized tank which contains Natural Gas at 200 Bar and 293...

26 February 2021 6,253 3 View

Gas sensor response and recovery time independant of flow rate and chamber volume?

I am trying to obtain the response and recovery times for my gas sensor device. It appears the the response/recovery times are primarily dependant on the flow rate of the gas I inject into the...

26 February 2021 1,511 3 View