How to regenerate PES Membrane of centrifugal filtration tubes having 5 and 50kDa MWCO?

Dear Collegues, I am using a relevant number of centrifugal filtration tubes made of polyethersulfone (PES) with 2 different MWCO, 5 and 50kDa for separation of protein in milk. They are quite...

15 December 2020 7,951 3 View

How to sterilise maize seeds in the lab?

What is the most effective protocol to sterilise maize seeds in the lab? We have tried few common procedures but with no luck (still get fungus contamination on agar plates): 1)10% sodium...

19 November 2020 602 15 View

How I can simulate solid state sintering?

I want to simulate solid state sintering of metal powder, conducted under vacuum. I am interested in the initial stage of sintering, does not matter to reach full density. Do you know any model or...

24 September 2020 7,383 5 View

Is there a good library to perform Petri net simulation in python?

Hello, I have designed several petri nets for my research. I am wondering how can I simulate them and gather system performance measure (eg sojourn times, throughput) using python? Is there a...

11 May 2020 2,120 2 View

What are the relevant economic, technical and environmental aspects of the recycling of batteries for automotive applicantions?

A paper review. Could you please provide some researches about the topic?

28 April 2020 946 5 View

Difference between photovoltaic plant short-circuit current and synchronus generator short-circuit current in AC transmission system?

Hello, I understand that photovoltaic plants are able to disconnect very quickly if there is a fault in the grid (cause power electronics), while synchronus generators cant disconnect due to his...

30 October 2019 8,457 5 View

Psychic salience has been studied in his correlation with psychosis.What about psychotropic drugs effect?

Some drugs seems to raise the feeling of psychic salience while others dont.

20 September 2018 3,556 1 View

In psychotic patients, psychotic features of the speech can vary their gravity during an interview. What do you think can be the influential factors?

In my view, these factors can be: the emotional meaning of the theme for the patient, anxious sympyoms caused by the situation or the interviewer, a relatedness feeling with the interviewer, a...

03 September 2018 303 3 View

Which assay to detect human serum levels of anti-troponin-I, anti-troponin-T and anti-tropomyosin antibodies?

We are currently using indirect ELISA to measure human serum levels of anti-troponin-I, anti-troponin-T and anti-tropomyosin antibodies? This indirect ELISA is not sensitive enough for our...

23 May 2018 6,546 2 View

Ksp in aprotic polar solvent , any idea?

11 May 2018 2,772 2 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

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

Why does two different bioinformatics tools for the same proteins show different subcellular localizations?

During a computational analysis, I found that for a protein of a plant, two different subcellular localizations are seen using CELLO and WoLF PSORT. For example, in CELLO, it identified the...

01 March 2021 6,729 2 View

What is the most suitable server for predicting protein structures in bacteria?

I have used the i-Tasser several times, however it has been unavailable for several days. I tried the swiss-model, but the output was not very pleasant due to the model used. Is there any other...

28 February 2021 4,521 3 View

What is the difference between genotype and haplotype data in the ped format?

Hi everybody In the ped format for genotype, alleles of any SNP are represented by two columns (one for each allele, separated by a space). Is a column sufficient for the haplotype to...

27 February 2021 1,965 1 View