Why the alternator connected to grid didn't loose synchronizm in following condition?

Lets say the grid is at ideal frequency 50 hz then the large load is shut of due to which frequency increases beyond 50 which tends to rotate all turbines faster than their previous speed but at...

08 September 2019 225 2 View

Why there is no current flows between B1 and B2 in Uni Junction transistor with emitter open as both the bases are on n type region?

The doping of N type is done lightly so the resistances are high between B1 and B2 but with this high resistances why electrons do not flow between B1 and B2 as leakage current flows through B2...

09 October 2017 8,897 0 View

How could i design the negative resistance region of UJT?

UJT between values of Vp and Vv operates in negative resistance region how could i graph this slope with accuracy. Vp is Peak voltage of UJT Vv is valley voltage of UJT

09 October 2017 7,596 0 View

Why ping and tracert commands works for blocked sites but sometimes do not work for open sites?

Hey once i have run ping and tracert command to my university's website but it does not work then i run above two commands for blocked site in Pakistan it works perfectly well for those so what is...

08 September 2016 4,639 0 View

Why sound waves have analog waveform in books while it is longitudinal waves ?

In signal communication books we make sinusoidal waveform for a sound waves but why we did it we know that sound waves are transverse in nature ?

08 September 2016 6,841 0 View

Double integration for area or for volume?

08 September 2016 4,452 0 View

Billing of electric motors?

Motor is inductive load so how does our electricity residential meters calculate the power consume by motor? Motor needs current to produce magnetic field so that current and voltage would be...

06 July 2016 9,718 8 View

Detuned Reactors usage in PFI devices?

What are Detuned Reactors and why they are used in Power Factor Correction devices.I have found in Schneider Electric website that that they are inductors which are use to control harmonics but...

06 July 2016 4,717 2 View

In the zero bias condition of diodes, why does the minority carrier in n type move to p type where holes are in excess?

03 April 2015 6,795 4 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

Which cell line should we use to perform biological dosimetry experiments?

We are preparing some experiments based on irradiating cells under different conditions in order to evaluate the effects in terms of DNA damage, genetic expression, etc. As our project is...

01 March 2021 3,355 3 View

Is it possible for two human neuronal cell lines to have different gene sequence for the same protein?

I am looking at the ATP1A2 (Sodium/Potassium ATPase alpha subunit 2) in two human neuronal cell lines. Expression levels of this protein seems to be almost equal when detected by one antibody....

01 March 2021 3,607 3 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

What is the most suitable server for predicting protein structures in bacteria?

I have used the i-Tasser several times, however it has been unavailable for several days. I tried the swiss-model, but the output was not very pleasant due to the model used. Is there any other...

28 February 2021 4,521 3 View

Do you need the CMV enhancer before the CMV promotor for a proper function of CMV on the gene that follows?

I'm a student and I have to produce a cell line with a knockin for the NRF2 gene with GFP. I have to put a promotor in front of the GFP because the gene will be too far away from the promotor of...

28 February 2021 7,127 2 View