Microstrip antenna design tutorial of HFSS 3D layout module ?

I have designed a 24 GHz rectangular antenna on HFSS 3D model and got desired results while desing the same antenna with same dimensions I am getting resonance frequency at 27 GHz I am...

28 February 2021 4,426 2 View

How can I apply Cyclic loading in ANSYS Mechanical APDL as a second Load step after a Static 1st Load step?

I am simulating a masonry wall under in-plane cyclic loading. Before the cyclic load is applied, it must be loaded with gravity direction surcharge load (or pre-compression). However, whenever I...

14 October 2020 3,253 1 View

How can we relate the Debye temperature to the Stiffness/Toughness of the glasses?

Is there any direct link between the stiffness/Toughness of the glasses and the Debye temperature.

19 August 2020 178 2 View

How to define Tensile and Shear Strength of SOLID65 in ANSYS Mechanical APDL?

I am modeling a brick masonry wall in ANSYS. The adjacent bricks (SOLID65 elements) are "joined" by surface to surface contact elements with certain normal and opening stiffness. I defined...

14 April 2020 6,795 1 View

What is the reason of spontaneous peaks dielectric constant measure through NRW algorithm?

I determining the dielectric constant of textile through waveguide method by using NRW algorithm. According to the theory there use to be some spontaneous peaks when the thickness of the...

13 March 2020 5,351 3 View

How do I solve a Solver Pivot Error in an ANSYS model with minor gaps between solid elements?

Hi, I'm currently modeling a brick wall in Ansys. I'm modeling the bricks as discrete elements and replaced the mortar with non-linear spring elements (Combin39). There is a 2mm gap between each...

16 April 2019 7,574 1 View

How do I solve "Invalid failure surface defined by nonlinear material properties" error in Ansys?

While running an analysis of a simple RC beam with perfect bond between steel and concrete, I have encountered an error in ansys: "Invalid failure surface defined by nonlinear material...

31 October 2018 7,309 2 View

Difference between the S-Parameters of Active and Passive RF devices ?

Hi , I have the question regarding difference between scattering parameters of an active RF component and a passive Rf component. Do we need to follow same mathematical relation to calculate...

11 May 2018 2,069 12 View

Dear all, which scales are available for the assessment of Educational Leadership in school settings?

Please attach the related material here. I will be thankful.

12 October 2017 8,731 4 View

Is there any tool, preferably shorter version, that can be used to assess the social desirability response style in adolescents?

Hello all! I am studying risk taking in adolescents in the age range of 15-20 years. I am using many questionnaires in my study and, therefore, I am concerned about the social desirability that...

14 September 2017 5,664 3 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 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

What techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 4 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

Shall I skip the measurement model in SmartPLS?

Hello everyone, I had run a mediation model in SmartPLS using questionnaires that were already validated among my statistical population. A professor who edited my paper -though she is not...

01 March 2021 3,052 3 View

What is involved in morphological changes of SEM images of a substance?

In the sem analysis of CaCO3 nanaoparticles, the morphology images showed spherical shaped particles but the proposed morphology for these type of nanoparticles is trigonal. I prepared the...

01 March 2021 1,960 4 View

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

I have designed reflectarray element and feeding it though Horn Antenna on HFSS. After full wave simulation, I am not getting desired results?

I have designed reflectarray element to generate OAM beams at 5.8GHz and feeding it though Horn Antenna on HFSS. After full wave simulation, i am not getting desired results i.e Radiation pattern...

01 March 2021 9,701 5 View