Does anyone simulate the supercooling phenomenon of the PCM (COMSOL)?

I have a heat transfer model in the thermal bath (temperature changes in the range 23-33degC), in which a vial with PCM material is immersed (melting temperature is 28degC). During the heating...

03 January 2021 3,548 2 View

My Wright-Giemsa Stain on macrophages isn't showing any cytoplasm, just nucleus. Any tips to improve my staining?

I'm pretty sure they are mostly macrophages since after a 2 hour incubation in M199 they are stuck with pseudopodia. My slides just aren't pretty enough for me. I'm using Fisherbrand Wight-Giemsa...

13 December 2020 5,475 3 View

Any suggestions to avoid the break of resin slices (Technovit 7100) on the microtome blade?

Hi everybody, I am beginning with the inclusion of biological samples (fish larvae) in resin (i.e. Technovit 7100). I am experimenting some troubles during the cut at the microtome (I would like...

16 November 2020 2,373 3 View

How to obtain promoter sequences?

Hi dear fellows, I would like to perform ChIP-PCR on the promoter sequences of genes, but I am not quite sure how to design primers for the promoter sequences. Can someone please help me? My...

20 September 2020 7,371 6 View

Recommended packages or references to combine regional climate models and Holdrige life zones with R?

I want to use R to make regional climate models to analyze changes in Holdridge's life zones. I haven't used R in a long time so I'm kind of outdated and would like to read some references that...

01 July 2020 1,728 4 View

What strategies to use to make distance classes more attractive to students?

In times of pandemic, distance learning has gained strength. What can teachers do to make distance classes more attractive to students?

23 May 2020 8,148 22 View

In your opinion, are bibliographic review articles important and should they be published by scientific journals?

Some journals do not accept review papers because they consider that the theoretical framework is the basis of a research, and not the research itself. Other magazines already accept and encourage...

20 May 2020 7,841 50 View

Metabarcoding fungi in lake sediment cores - advantages/disadvantages of ITS and 18S?

In my PhD, I want to analyse fungal communities in lake sediment cores from Siberia. One of the performed experiments will be a metabarcoding of the fungi. Therefore I am evaluating primers at the...

05 May 2020 3,920 1 View

Which species do you recommend for ecotoxicological tests of industrial effluents containing hydrocarbons?

The question aims to know what types of species are most used in ecotoxicological tests of effluents from industries in the oil sector.

26 April 2020 5,382 21 View

How can I include a second order term in the model?

My hypothesis is that the functional diversity of fish (responsible variable) increases until an optimum level of a gradient of habitat structural complexity (predictor variable), but decreases...

01 April 2020 9,569 4 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 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

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 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