Electrocardiogram (ECG) Images available?

We are looking for a database or a data set with ECG images. We have already found some that contain the ECG data, but we need the images to evaluate them with AI methods.

01 October 2020 3,688 3 View

Method for the extraction of insect melanin?

Dear colleagues, does anyone know a reliable method for the extraction of melanin (from both cuticle and formed by immune activated phenoloxidase in the body cavity) from whole insects? Thank...

24 May 2019 962 3 View

How can one measure the image of a city? Are there studies dealing with a comparison of city image (especailly for German cities)?

I'm dealing with the question whether the image of a city is a relevant factor to explain the economic performance of that city and I'm searching relvant literature.

11 September 2018 8,895 4 View

I search studies analyzing social media (instagram) accounts of different types of criminal offenders??

11 August 2018 1,531 1 View

How can I implement a backpropagation routine?

We are currently developing our own machine learning platform with an emphasis on text mining and we are looking for a reproducible methodology to implement backpropagation. Where can I find a...

21 May 2018 3,250 4 View

Is there any microturbulence in a laminarized flow with Re < 2300?

Dear Colleagues, Is there any microturbulence in a laminarized gas / liquid bubbly flow with Re < 2300 and if yes can it be described by the Taylor length scale? The more practical background...

01 July 2016 2,130 1 View

I am looking for formaldehyde or glutaraldehyde fixed Trichoptera and/or non-Ditrysian Lepidoptera larvae specimen. Has anyone samples for me?

I want to examine the internal anatomy of Trichoptera and non-Ditrysian Lepidoptera larvae. The genus or species does not matter much for the first examinations, but it would be beneficial to know...

24 February 2016 1,595 3 View

How do I segregate radium sulfate from a radium / barium mixed sulfate as it commonly occurs in oil and gas scales?

14 August 2015 5,548 6 View

Person/human detection: what is out there other than image processing, e.g., passive infrared, electromagnetic field?

Most literature uses processing of video/cam images. I would need a simpler solution, also need to avoid ethical issues due to videoing people.

03 February 2013 678 5 View

Hi, did you find some Diptera Psychodidae in your amber?

01 January 1970 291 11 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

How vaccines of covid 19 work?

Millions ask how vaccines of covid 19 be successful and safe, its here to explain generally how vaccine of pfizer work ,mRNA vaccines teach our cells how to make a protein that will trigger an...

28 February 2021 2,723 4 View

Problem with shRNA transfection. Why are only two plates getting contaminated instead of all?

I transfected my LNCaP-WT cells with 3 shRNA plus their NTC two weeks ago and split two puromycin selected cell plates on Friday last week(Feb 26). I checked for GFP in the cells, and they all...

28 February 2021 4,949 3 View

How can I assign a velocity along one direction to CO2 molecules in a molecular dynamics simulation using GROMACS?

Dear all, I am trying to perform a MD simulation about the interaction between CO2 and a polymer. I create my model, solvate it and perform the NVT and NPT equilibration. Now I am not able to...

26 February 2021 10,014 3 View

Why do the air flow results vary totally when adding scalar in CFD ?

Dear All, We are using Autodesk cfd to calculate the air flow in a single sided naturally ventilated room, where air flow depends only on buoyancy due to temperature difference between inside and...

25 February 2021 9,602 4 View

CGA 300 Regulator for CO2 cylinder?

Has anyone ever tried to deliver CO2 with a CGA 300 regulator? I know that a CGA 320 regulator is standard for CO2. The issue is that I currently do not have any free CGA 320 regulators. I also...

25 February 2021 3,292 3 View

What is the suitable range of Sulfur content and Viscosity of Heavy fluid Oil that used in Kiln?

What is the disadvantages of high sulfur content to the ceramic burning process? and what is the effect of outranged viscosity?

24 February 2021 8,219 2 View

Is is possible to pole with corona poling pellets of the sample material instead of thin films?

As it is highly probable that pellets will have a higher degree of air gaps and voids than thin films, is it possible to pole the samples with corona poling nevertheless? Or is there the...

24 February 2021 1,349 1 View

Best plasmid could be used as a standard curve for AAV titration?

I have been trying to have a good AAV titration for my production and I have tried different plasmids to set up as a standard curve but each one behaves differently. i am trying to use ITR for...

23 February 2021 5,167 3 View

Have you ever experiencing air vent trouble in fermentation process?

Dear all, My research group is currently working with a 12-litre fermenter. Somehow, if we do the fermentation for more than 20 hours, the process will be more prone to contamination. Our current...

23 February 2021 1,908 2 View