Reason for mismatch/frequency shift between measured and simulated results at high frequencies?

What is the reason for mismatch/frequency shift between measured and simulated results at high frequencies apart from insertion losses of the connectors, fabrication tolerances, reflections...

06 July 2019 997 1 View

Difference between Magnetic Field Intensity and Surface Current Density?

Both of their units are A/m, yet both seem to be different! What is the difference?

05 June 2019 2,519 7 View

FeCl3.H2O in mL required to dissolve 1g of copper in 1 hour?

Hi, How many mL of FeCl3.H2O solution is required to just dissolve 1 g of copper in 1 hour? Please provide the chemical and mathematical equations too! With Regards, Suhas D.

09 October 2018 1,012 7 View

What is the PRACTICAL value of axial ratio for ELLIPTICAL POLARIZATION?

The practical magnitude of axial ratio for circular polarization can go upto 6 dB (0 dB

06 July 2018 2,311 11 View

Sources for heat loss in waveguide junctions like tees, couplers etc.?

The finite conductivity of the conductor is one source. Other is, if the junctions are mismatched. What could be the other sources? Hmmm...?

03 April 2018 7,934 3 View

Antenna parameters for 4G LTE Advanced Technology?

What are the antenna parameters required for 4G LTE advanced technology? Please explain in detail! 1. No. of Antennas (I believe it is 8*8 or 8*4). But why? 2. Radiation Pattern? 3. Beamwidth? 4....

11 December 2017 1,427 3 View

What is the relationship between antenna bandwidth and bit rate?

How much antenna bandwidth do I need to transmit 100 Mbps (4G) or let's say 1 Gbps (4G LTE) of data? What is the relationship between Hertz (cycles/second) and bits per second? Or, how many...

11 December 2017 1,754 6 View

What is the significance of HPBW and FNBW in an antenna?

What is the physical significance of Half Power Beam Width and First Null Beam Width of an antenna?

10 November 2017 5,100 5 View

What is a TENSOR?

I understand that vectors are a subset of Tensors. Can someone please define tensors in a simple manner? I read about tensors from quora and saw some videos too, but still couldn't grasp its inner...

04 May 2017 263 4 View

Was Hertz's findings NOT significantly influenced by the Maxwellian's?

03 April 2017 371 8 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

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View

What test should I use to compare two or three means, if data is not normally distributed but sample size is > 30 in each group?

I personally feel this as a most confusing question. As per my understanding, if sample size is > 30, and sample is skewed, we can still use paramteric approach, as it will follow Z...

01 March 2021 1,587 6 View

Does any one can help me choose a reasonable basis set for intermediate metal ions interactions with guanine (i.e Fe2+, Mn2+, Cu2+ and exc.)?

Hello every body Does any one has any idea to help me choose a reasonable basis set for intermediate metal ions (i.e Fe2+, Mn2+, Cu2+ and exc.) interactions with guanine or other DNA organic...

01 March 2021 6,187 2 View

How to choose ANN number of hidden layers and nodes?

Hello, Could you please share any interesting research explaining how to choose the number of hidden layers and nodes per layer in case of regression problems using ANN? Thank you, any help would...

01 March 2021 6,200 3 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View