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

Indoor and outdoor coronavirus concentrations in aerosols?

I have been wondering why there are so few studies that measure the concentration of coronavirus in the air, especially outdoor studies, so I started searching for reliable scientific...

28 September 2020 5,695 5 View

Troubleshooting rAb expression?

Hi All, I'm trying to express a rAb in CHO or HEK293 cells and I am having an issue getting functional antibody. WB shows bands for HC and LC under reducing conditions and non-reduced shows a...

10 July 2019 8,613 4 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

Tips for extracting DNA from clotted, frozen avian red blood cells?

I have clotted, frozen avian red blood cells that I am attempting to extract DNA from (for eventual micro satellite sequencing). I am using the Qiagen DNeasy Blood and Tissue Kit. The protocol was...

18 March 2019 8,656 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

Is there a way to select Google Scholars entries by journal?

Hello, I have a general question concerning the usage of Google Scholar. Does anybody know, whether it is possible (after searching for a certain topic) to select specific journals from the...

09 August 2018 2,924 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

How to study mesenteric adipocytes?

I would be interested in learning what research tools are out there to study mesenteric adipocytes? Either in cell culture, animal models (e.g. mouse) or in human tissue? I would be happy for any...

16 February 2017 6,633 1 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

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View

How much pressure we can reduce at the outlet to avoid Reverse Flow?

I am simulating Heat Exchanger. I have tried and tested all the methods to resolve this issue from the internet like refining mesh, improving skewness and orthogonal quality ,extending outlet to...

01 March 2021 6,985 3 View

Issues with Permeabilization during Flow Cytometry?

Hello Everyone. Currently I am working to characterize macrophages in the myocardium after ischemia-reperfusion injury in rats. Due to the low total cell number isolated from rat hearts I can...

01 March 2021 3,867 3 View

How to show arrows over the streamlines in CFD-post?

I follow this to make streamlines like the photos attached below: (software- CFD post-processing) First I plot the 2D streamline over a surface "streamline 1". them I plot a vector by the...

01 March 2021 8,668 3 View

How to increase mesh quality of a cfd model in ansys fluent?

How can one improve mesh skewness, orthogonality, aspect ratio?

28 February 2021 7,730 3 View

Is there a deep reason for using the squared modulus of the wave function as the probability density of the existence of the particle?

I think we were all surprised at the first time we got to know quantum mechanics that the squared modulus of the wave function is the probability density of the existence of the particle? The role...

28 February 2021 6,282 9 View

No title

I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...

25 February 2021 2,615 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