Which surface roughness measurement make is good for R&D ?

How does one derive the standard deviation of a scale?

Dear all, I am working on analyzing data from a survey on student satisfaction. The survey contains items with a 7-point Likert response format that produce 12 scales related to different areas...

05 August 2024 2,141 4 View

Why results of ROS flurescence are negative as there was no bacteria within?

Hello. I am working on ROS production of two systems: system A is cerium oxide and hydrogen peroxide, system B is cerium oxide nanoparticle, hydrogen peroxide and potassium bromide. I did some...

04 August 2024 5,974 3 View

Why specific capacitance is not proportional with the specific surface area?

Dear researchers, Why specific capacitance is not proportional to the specific surface area? I have material A with a surface area higher than material B, but material B is showing little bit...

26 July 2024 9,156 2 View

Can I use CCCP instead of H₂O₂ as a positive control for ROS measurement through flow cytometry?

I am giving starvation stress to the soil amoeba (Dictyostelium discoideum) cells in my study groups and using NAC as a negative control. I am using DHE for ROS measurement.

20 July 2024 6,354 0 View

What is the correlation between IQ and job performance (measured by annual salary)?

I am struggling to attain multiple research articles, so far, I have looked at the Swedish longitudinal study, they have good depth and reliability. I was thinking of looking into twin studies to...

15 July 2024 3,737 1 View

What is the reason for the non-monotonic variation of roughness for sputtered Cu films annealed at 100, 200 and 300 degree Celsius?

I have prepared Copper thin films by magnetron sputtering and the samples have been annealed at 100, 200 and 300 degree celsius. The variation of the rms roughness and all other AFM height related...

11 June 2024 9,774 1 View

Fix CO2 in charcoal and refill coal-mines?

1 ton charcoal fixes 3,7 t CO2. The global charcoal production is 54 mio tons, in which 200 mio t CO2 are fixed. 200 times the currently produced charcoal will fix the entire CO2 emitted globally...

29 May 2024 3,783 2 View

How can i use Keithely B2901A SMU to measure resistance with dynamic loading condition over the flexible Polymer based piezoresistive strip&foam?

I am particularly interested in understanding the real-time response of the material (strip and foam type) to varying pressure loads. I have Keysight B2901A SMU in the lab. Additionally, I would...

27 May 2024 5,556 0 View

Is it normal for BET surface are of the synthesized material have some difference with the reference paper?

Hi, currently i am studying the different structures of MnO2 and i do a BET surface analysis to see the BET surface area. For my synthesized material alpha-mno2 has a BET surface area of 122,...

22 May 2024 3,559 2 View

To what extent can a large sample size increase the likelihood of obtaining significant results in Structural Equation Modelling (SEM) analysis?

Dear Colleagues, I have a question regarding the relationship between sample size and the likelihood of obtaining significant results in SEM. If it is generally true that larger sample sizes can...

15 May 2024 7,373 4 View