Calculating sample size for descreptive survey among nursing students on EBP in nursing. I am not getting prevelence rate for sample size estimations?

I am trying to calculate sample size for my descreptive survey study aiming mesurement of nursing students knowledge and attitude of evedence based practice in nursing. Plz suggest me prevelence...

03 April 2019 7,107 4 View

Why should we use the universal gas constant R when dealing with liquids?

The universal/molar/ideal gas constant R is given by R=PV/nT; this however, on an average, is considered true for gases (H2, O2, N2 are excluded). Involving R in chemical expressions dealing with...

21 January 2019 154 11 View

I am looking for a simultaneous heat and mass transfer model with finite differences?

I am trying to come up with a code for simultaneous heat and mass transfer for water evaporation owing to solar flux. The incoming heat flux contributes to volumetric heat generation within a...

24 October 2018 8,964 1 View

What is the oxidation potential of As(III)?

Can anyone tell what is the oxidation potential of arsenic (III)? I need a different approach to get the value...not the Eh-pH diagram.

06 April 2017 920 3 View

How to count parameters (K) to calculate AIC (Akaike's Information Criterion) value by using formula, AIC = 2k + n Log(RSS/n) ?

09 October 2016 1,922 3 View

Why does the AAS show more value of Arsenic than its original value?

14 April 2016 4,256 16 View

Can we use unpurified PCR product for sequencing, if there is a good band with little primer diamer?

23 February 2016 9,834 5 View

Why does a charge above a infinite conducting plane is attracted towards the surface of the conducting plane & why is the term 'infinite' significant?

I would like an answer from the physics point of view, not from the Image Theory. Thank You.

15 January 2016 6,650 3 View

In frequency domain alpha band(8-16hz), beta band(16-32hz), gamma band(32-64hz), sub-band(64-128hz) are same as LL,LH,HL,HH in wavelet decomposition?

I am working on single trial motor imagery data i.e. EEG data. I am following a paper which has a dataset from BCI challenge IV (dataset 2b). After removing noise and extracting all the data from...

23 February 2021 5,503 1 View

Suppose we have a banana seller cart consisting of 4 wheels, weighing about 300 kg. How much torque motors are needed to pull of push it electrically?

I am thinking of electrifying the street food carts while harvesting energy using solar panels on top.

22 February 2021 4,323 3 View

Can I arbitrarily take a cycle number of 40 for the gene that was not expressed at all in qPCR results calculation?

I ran RT-qPCR for a control and a treated group and it appears that my gene of interest was not expressed at all in any of the subjects in the control group. So I was wondering if I could...

20 February 2021 6,243 10 View

Trouble shooting with his tagged protein expression in E.Coli?

i have issues in expressing a chicken protein in BL21 cells with his tag. I do not see induction even at 18 degrees. Any suggestions

15 February 2021 8,939 3 View

Can you please suggest me how to convert EDF file into Mat file for EEG datasets?

Hi sir, 1.can you please suggest to me how to convert the EDF (European Data format) file into a Mat(Matlab) file for EEG datasets?. 2. Also suggest some publicly available EEG Motor Imagery...

15 February 2021 7,620 1 View

Is Genetic Algorithm usage for Motor Conception FEA optimization a good choice?

Hi RG community, Like the title shows ,i was wondering if choosing the GA for this kind of Optimizaiton is a good choice? For example we have a population of 100 (for 7-8 Optimization Variables),...

14 February 2021 1,160 7 View

How to interface ANSYS Maxwell and Matlab?

Dear All, I am working on electric motor design in Ansys Maxwell. I have written optimization code in MATLAB. I want to run this code in ANSYS MAXWELL and generate FEA results. Does anyone know...

10 February 2021 1,279 1 View

How can I prevent my switching power supply from sudden voltage increases ?

Hi Everybody, I'm currently using a 3kW AC/DC converter which gave 48VDC output(Switch mode power supply). The device is capable to deliver up to 62.5A current to the load. My application is a...

08 February 2021 7,642 4 View

Grid connected inverter using virtual synchronous machine?

Hi everybody, currently, I am working on the grid-connected inverter. I want to make my grid-connected PV system a PLL-less system. I have studied some reachers are implementing a virtual...

07 February 2021 6,078 2 View

What is the reference value of THD in BLDC MOTOR speed control ?

i used to control EHO+ANFIS to MRPID to Landsman converter for bldc drive i got 7% but some of them are telling IEEE standards are < 5% is it correct for Drives ?

07 February 2021 5,892 1 View