Why are some mounting holes connected to the ground?

Why are plated mounting holes connected to the ground ? I read that if you are connecting your board to chassis ground, then it should be connected at only one point and connecting, say 4 mounting...

10 November 2014 1,930 7 View

What result does selecting the wrong load capacitance for a crystal have?

10 November 2014 568 6 View

Why does digital equipment have more latency than analogue?

Is the explanation that the digital equipment takes longer to propagate? For instance, a software synthesis is very slow compared to a hardware synthesis.

10 November 2014 7,108 17 View

What is the best software for simulation of Power electronic projects?

10 November 2014 3,459 84 View

Why do manufacturers crimp capacitor leads?

10 November 2014 2,957 9 View

What happens if a 240V appliance is connected in a 120V AC power supply?

10 November 2014 5,705 18 View

Why in a standard house, instead of using many low power AC-DC rectifiers, isn't a big AC-DC rectifier used?

Why in a standard house, instead of using many low power AC-DC rectifier, isn't there a big (like 12V 20~50A) AC-DC rectifier which supplies some wall socket with a DC voltage? In the long run...

10 November 2014 4,278 10 View

Ground noise while using multiple switching regulators

10 November 2014 4,100 5 View

What are the advantages and disadvantages of power line carrier communication?

What are the advantages and disadvantages of power line carrier communication?

09 October 2014 4,022 8 View

What is the best dc-dc converter topology for PV systems with MPPT?

What is the best dc-dc converter topology for PV systems with MPPT?

09 October 2014 5,439 26 View

Why does blocking with my immunogenic peptide cause nuclear fluorescence in ICC?

Hi all, I am validating a polyclonal antibody raised against human ANT4, through WB and ICC. In most of my controls, the antibody shows very little off-target binding, but when I pre-incubate the...

03 March 2021 5,999 3 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

Does Napabucasin soluble in dichloromethane and in ethanol?

I need to prepare a solution of Napabucasin (inhibitor of cancer cell stemness) in dichloromethane. The drug is expensive, so maybe somebody already tried to do it. If it is soluble, what is the...

02 March 2021 9,945 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

Dapi fluorescence protocol for colon cell lines ?

28 February 2021 2,534 2 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 compare 2 samples recruited with different sampling methods?

If I want to compare characteristics of 2 groups of patients, one group is recruited from a random sample of the general public while another group is from a sample with a fixed gender (male to...

26 February 2021 3,526 3 View