How I can introduce the gradient of u (grad_u) in the source term f in PDEs mode in Comsol ?

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How do I determine the mg of ascorbic acid equivalent to 1.0 mL of standard indophenol solution?

Hello everyone. Could you help me with the following problem. I am going to determine ascorbic acid in capsules using an AOAC method. The method gives the following equation: mg ascorbic...

24 June 2024 789 1 View

How can I Design a general procedure about the Demand analysis process in Project Management?

For an enterprise is very important in order to organize the Project Management process, make a procedure for the Demand Analysis Process. Can you provide me methodogies for this matter? Thanks...

06 June 2024 5,090 1 View

Metodology for dashboard, please?

Please scientific articles on methodologies to create dashboards in R shiny and PowerBI

27 May 2024 387 1 View

How can I implement the Change Management aproach in an enterprise?

I am interest in know experiences where the organizations implement the Change Management aproach.

20 April 2024 9,175 8 View

What are the UV ranges and temperatures mostly effect on microplastic degradation?

For a study about the effect of UV and temperature on plastic degradation and to compare the changes between different UV and temperature levels by using fresh plastic pellets. What would be the...

22 March 2024 4,067 1 View

Do you have seed trait data for tropical species?

We would like to invite you to build an inclusive, open-access database on seed traits for tropical species. If you have morphological, biophysical, or germination data for tropical species,...

07 March 2024 2,897 4 View

Você trabalha com traços funcionais de plantas de Cerrado?

Nós gostaríamos de te convidar para participar e contribuir com com o Cerrado Plant Traits: uma rede para a construção de um banco de dados de traços funcionais de plantas. Se você tem dados...

27 February 2024 2,142 2 View

How many seeds should be inoculated in 10 mL bacterial inoculum?

Can someone cite some published research regarding this matter? Well, I need to know the ideal ratio of number of seeds with 10mL bacterial inoculum.

01 February 2024 9,313 0 View

DDS and Pharmaceutical industry. Conferences opinions?

Hello everyone! I am considering the possibility of assisting Congress or Conferences on Drug Delivery Systems or Pharmaceutical Formulation. However, I do not have much experience in this...

30 January 2024 7,440 0 View

How could I create a risk management model linked to the IT Management strategy in an enterprise???

I need scientific articles or expert criteria looking forward to hear from you. Best Regards

26 January 2024 4,512 4 View

Problems about acousto-optic coupling in Comsol, how to check whether the moving mesh is correct?

I’m trying to reproduce the acousto-optic coupling simulation in the paper Frequency–angular resolving LiDAR using chip-scale acousto-optic beam steering. LNOI(lithium niobate on insulator) is...

13 August 2024 9,795 0 View

How to get LP fiber modes directly from Comsol?

Hi there, I'm new to modelling with comsol. I would like to ask if it is possible for comsol to output linearly polarized (LP) modes? I tried modelling a simple single mode fiber with an enlarged...

23 July 2024 4,019 3 View

Can anyone help with this comsol error? Pleaaaase I need help !!?

Undefined variable. - Variable: comp1.cNa - Géométrie: geom1 - Domaine: 1 Failed to evaluate expression. - Expression: comp1.cNa - Affichage: Graphique sur ligne 1

19 July 2024 1,938 2 View

Why electrical charge on the moving plate increase?

Hi, everyone This figure depicts a simulation of an electrostatic energy harvesting system in COMSOL Multiphysics software. My question is regarding the relationship between the changes in...

19 July 2024 4,694 4 View

Why does the error "The relative error (0.29) is greater than the relative tolerance" appear in Comsol Multiphysics?

Hello, My name is Radu Jubleanu, I am a PhD student at the Politehnica University of Bucharest. I work in the field of magnetic storage in superconductors. I want to carry out a numerical study of...

15 July 2024 6,025 1 View

How to use stress and displacement results from 1st stationary simulation as initial conditions for 2nd eigenfrequency simulation in COMSOL?

Dear All, I am trying to define the dispersion curves of a periodic unit cell in COMSOL Multiphysics with prescribed displacements. I am using two separate studies: - Study 1: Stationary, with...

13 July 2024 7,855 1 View

I have need a LPBF/SLM model on comsol multiphysics ?

In this model clearly understanding how to active one layer to another layer and how to add powder material properties step by step.

08 July 2024 6,147 0 View

Is it possible to define exothermic processes in finite element software like COMSOL? If yes, how can this be done?

We aim to study an exothermic process and evaluate its temporal changes. Could you recommend suitable software for this purpose and explain how to conduct this analysis? What specific data is...

30 June 2024 8,413 1 View

Has anyone simulated Argon plasma jet in Comsol?

Hello, Has anyone successfully modeled 2D argon plasma jet using the COMSOL? I would greatly appreciate any guidance on this matter.

30 June 2024 5,597 0 View

COMSOL simulation of transient wave optics propagation is not physical?

Hi guys, I am trying to simulate a 1 ps long plane wave propagating in a dispersive material, with the wave optics transient module. According to the drude-lorentz model, when the frequency of...

29 June 2024 486 1 View