What can be an appropriate sample size to test the electromagnetic shielding of concrete?

I am a research student and my work is related to replacement of fine aggregate in concrete with some waste material. I will be performing tests to check the electromagnetic shielding of the...

09 April 2019 9,968 3 View

Hi all, Can I submit a paper, already published in SSRN electronic journal, to another journal?

Hi all, Can I submit a paper, already published in SSRN electronic journal, to another journal?

18 September 2018 1,371 4 View

How I can determination of the solubility constant by using Uv-Vis spectrophotometer?

I need calculation of solubility constant for materials by using Uv-Vis spectroscopy

06 February 2017 2,011 4 View

Why Precursors of perovskite (such as LaMnO3 after obtaining metal hydroxide) should be calcined in oxygen atmosphere at high temperature?

03 October 2016 1,188 2 View

Hi, When measuring the concentration of DNA using eppendrof DNA Biophoptometer. What is mean the negative result ?

06 March 2016 4,175 6 View

Why is capacitace of solid state supercapacitor getting low even when I generate pores in graphene electrode?

20 February 2016 399 7 View

Basu (1997) model in STATA program

In this discussion, I show how Basu (1997) model can be conducted in STATA program. Please, start with file number 1. Then go to file number 2 ((do file)). In the attachments, I include the data...

01 January 1970 1,276 5 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View