Do you think that Covid 19 and 20 have contributed to silencing most of the world's problems?

Covid 19 and 20

25 December 2020 1,479 2 View

Hi, How do i separate powder it contains sodium bicarbonate,tartaric acid and citric acid by HPLC or only organic acid ?

Method and solvent

03 February 2020 7,717 2 View

What is the relation between Relative risk and P-value?

Is it logical in analysis of some factor and outcome event, the results reveal significant RR less than 1 and non significant P-value?? If yes how can we interpret these results??

16 January 2020 5,314 2 View

How to analyse multiple categories with multiple questions in each variable ?

Hi fellow researchers . I do have problems on how to start on my analysis. My questionnaire consist of three section. The structure is as below. 1st Section - Demographic profile ( Gender, Age,...

06 July 2019 5,687 3 View

Do you like Chomsky as a Linguist or as a politician?

Do you like Chomsky as a Linguist or a politician?

10 April 2019 9,742 20 View

Some universities and colleges insist that students wear special uniforms, what do you think?

Many students in our universities and colleges complain about wearing uniforms of particular colours chosen by the Ministry. Are you with or against wearing fixed uniforms??

31 January 2019 7,967 15 View

Can we complain to the RG team about the allocation of scores or accept them in silence?

Sometimes , I feel that the score allocation by RG is not accurate as the scores terribly get down despite the big number of reads and recommendations. We would like to know if there is a way for...

18 January 2019 1,947 11 View

In Sociolinguistics, what does the term "Social register" refer to?

What does the term social register refer to in socio linguistics?

05 January 2019 5,493 8 View

What are the specialized functions of the right and left hemispheres of the human brain?

What are the specialized functions of the right and left hemispheres of the human brain?

05 January 2019 3,357 4 View

corrosion probe troubleshooting in cooling towers ?

We are using online corrosion electrode of type electrical resistance to monitore corrsoion rate in cooling system of cappacity 27000m3 , we use NALCO company treating program since 2 months ,( we...

19 November 2018 8,881 5 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 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

Help request in CST microwave?

im working now on TPV solar cells and metamaterials and i realy need our help in CST microwave i have a tpv cell simulation and i want to extract particullarly the absorbtion of only the active...

02 March 2021 2,246 2 View

Anyone found any research papers on solar furnace design calculations (for solar concentration)?

I am thinking about working on solar furnace with heliostats that concentrate sunlight and heat molten salt, but currently no luck with research. Not a lot of papers based on the subject. (check...

01 March 2021 5,023 5 View

How to size battery banks?

I am designing a small grid connected solar PV power-plant. As the battery's capacity is specified in Ah and demand in kWh. What is the best way to size the battery bank? I have battery price in...

28 February 2021 1,638 3 View

How to design a boost converter for a mppt controller?

I have a doubt on how to select the inductor and capacitor value when I want to implement MPPT controller. This is because we always take a maximum output voltage and current but in this case, we...

28 February 2021 3,637 2 View

How to sample data to increase presence of solar panels in the images?

I am working on creating deep neural network on geospatial dataset and wanted to know how to do the sampling so that I can increase the presence of solar panels in the images. I cannot use entire...

25 February 2021 3,936 6 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 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

Gallium Antimonide (GaSb). Can anyone help me to find vendor (provider) to sell GaSb solar cell ?

I am searching of provider (GaSb), I only found this one (https://jxcrystals.com/wp/about/). Can anyone help me?

21 February 2021 1,945 2 View