Please how to derive the expression for theta between the angular velocity vector and the angular momentum vector for a spinning frisbee ?

11 December 2016 5,815 0 View

Could anyone please tell me how I can find the thickness of CdTe by RBS and SIMNRA?

I try to measure the thickness of CdTe from RBS, I found the solid angle, the no. Of particles, but I don't know how I can find differential cross section and what I have to do.

04 May 2015 6,985 2 View

SnO2/Au.

If I have an Au thin films which 300 A thick and evaporated by thermally deposited, since 5 years and now a strange spots appear on them, and i want to make them as a contact for SnO2 which will...

02 March 2013 6,293 9 View

Nanoparticle grainsize determination

Why could the the grain size calculated by XRD be larger than the grain size calculate by UV-Vis method for the same sample?

05 June 2012 9,807 25 View

FTIR test for semiconductor thin films

What is the benefit of FTIR (spectroscopy) test for semiconductor thin films and can we find out what kind of semiconductor we can test with it?

02 March 2012 7,313 15 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

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View

Should we reduce the standard unit of length to 0.31951540592 meter ?

The reasoning behind this question is to align the ratios of the proton potential in energy per charge to the speed of light in distance per time. As these two dimensions appear to be related,...

27 February 2021 947 7 View

Is is possible to pole with corona poling pellets of the sample material instead of thin films?

As it is highly probable that pellets will have a higher degree of air gaps and voids than thin films, is it possible to pole the samples with corona poling nevertheless? Or is there the...

24 February 2021 1,349 1 View

Helix antenna coupling problem?

Dealing with a helix antenna, made with flexible material and not rigid like using a PCB board or wire. At the beginning of the helix is too close to the ground plane, causing coupling. How can I...

21 February 2021 4,453 3 View

What are your alternative data collection methods during the pandemic? What are the pros and cons?

Dear colleagues We are exploring possible data collection methods for environment and behavior research in the context of architectural environments. Have you conducted any Post Occupancy...

16 February 2021 2,575 4 View

Any way to separate out fluorescent channels from a composite image?

Hi there, I've been using the EVOS Auto II microscope for some time now and usually I will save the transmitted light/bright field image and the images from fluorescent channels as separate...

15 February 2021 546 3 View

Centrality indices for weighted bipartite networks?

My colleague and I are looking to use SNA to look at the risk of contact between an intermediate and definitive host of a parasite. We have built a bipartite network where one set of nodes...

08 February 2021 6,637 3 View

Can explain this diagram to me, is this the average consumption curve for one day or the total consumption of days in a month summed up in specific?

The hourly load curves of the selected household in each season are shown in Fig. 28. Figure 28 shows the demand for electricity in four months on an hourly basis. Can you explain this diagram to...

08 February 2021 657 16 View

Is there a test network to analyze the hydrothermal dispatch of electrical energy?

Hello, I am developing my degree work on the coordination of hydraulic and thermal units in an energy network and I was wondering if there is any test network with which I can evaluate or compare...

03 February 2021 1,587 3 View