Is the sinovac vaccine safe and effective for people over the age of 60 ?

Dear respective researchers, I was asked by my institution to be vaccinated this week using the sinovac vaccine. However, from some of the information I got, this vaccine is not recommended for...

01 March 2021 7,781 6 View

Does the corpse of the Covid-19 virus victim still have the potential to transmit this virus?

If there is still potential, how long can this virus still be infected? Please give your comment. Thank you very much. Best regards.

23 December 2020 1,363 8 View

Which turbulence model is most suitable for numerical calculations of flow and heat transfer in annular finned tubes geometry?

Which turbulence model is most suitable for numerical calculations of flow and heat transfer in annular finned tubes geometry?

16 December 2019 3,117 13 View

What is the effect of free stream turbulence on the transition from laminar to turbulent?

Is there a universal theory that explains the effect of free turbulence on the flow transition from laminar to turbulent? Please give your opinion here. Thank you very much.

16 December 2019 5,979 8 View

Are there other ways to take solar energy other than through photo-cells and thermal?

The amount of solar energy emitted to the earth is very large. Are there other ways to take solar energy other than through photo-cells and thermal?

08 December 2019 6,336 12 View

What is the maximum efficiency that can be achieved by a solar cell?

Technological developments in the field of solar-cell show efficiency improvements that are not very impressive. How much is he maximum efficiency that can be achieved by this device? Could it be...

08 December 2019 8,243 6 View

What is the error of the flow analysis in the pipe, between the one using the Bernoulli equation and the actual situation?

Bernoulli equation is very well-known equation and is very often used to analyze and design piping systems. But we know that in this equation there are at least 4 assumptions applied, namely: 1)...

18 July 2019 7,151 12 View

What are the strategies so that our papers are always accepted?

Publishing papers in reputed international journals is not easy. The right strategy is needed to write and submit it. Please help to contribute suggestions so that our papers can always be...

08 May 2019 7,061 7 View

Does each research have an applicative value?

To carry out a study, it takes a lot of cost, time and energy. Does research always have an applicative value? Does every research have to be commercialized? Your suggestions and opinions are...

08 May 2019 7,897 17 View

How to share discussion on RG effectively and politely?

Dear kind and distinguished lecturer and scholars, Currently we are discussing an exciting and essential topic for all of us, namely about the plan to create an international organization for...

01 January 1970 7,854 3 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View

Stress/strain tensors decomposition ???

25 February 2021 6,760 1 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

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

Does anyone know if the Quantstudio 3 qPCR machine requires a passive reference when Using SYBR? I ran a qPCR and got the plot in the attached file.?

I know that my target is in my sample as I extracted it from cell culture myself. These plots show some amplification. The first one seems O.K for the first 36 cycles but then collapses at the...

14 February 2021 2,809 2 View

Are there any exception like work hardening in metals elastic limit due to dynamic loading?

The samples made out of spring steel are taken from same lot. The specimens were shaped following heating to forging temperature - Forming- Hardening -Tempering methods. After storage of almost 6...

11 February 2021 952 6 View

Having trouble with qPCR amplification plots. My curve's never seem to reach a plateau. Any ideas?

The parameters of the curve all seem acceptable, typically reactions results are above 0.9852, -3.1 to -3.6 slope, and 90-110% reaction efficiency. The results seem to be what I would expect from...

04 February 2021 1,138 3 View

Queries regarding the rain flow counting algorithm?

02 February 2021 9,790 2 View

PCR primers bind to specific DNA at specific temperatures but not other temperatures?

I ran PCR in order to analyze a P-element excision on a mutant drosophila line. My results were not conclusive, however that is beside the point. I ran a temperature gradient in order to optimize...

25 January 2021 9,164 11 View

HPLC: how to calculate violaxanthin area if it overalps with neoxanthin?

Does anybody know of, or have a method suitable for HPLC analysis that allows to separate violaxanthin from neoxanthin? I want to quantify the xanthophyll cycle (violaxanthin, antheraxanthin and...

21 January 2021 5,775 5 View