What are the possible ways to detect merging clusters in cluster analysis?

29 January 2014 1 2K Report

If I run many centroid K-means then I measure the similarity of those clusters with a particular criterion to detect the clusters that are akin to be merged. What kind of formulation or criterion provides a heuristic for such decision?

Mohamed Mahfouz

Build matrix for subcluster distance the distance between two subcluster can be measured based on any linkage strategy single or complete ...

Badges
Science method

More Eren Golge's questions See All

Why might 1 base be different in the forward and reverse reading of the Sanger sequence in the same sample ?

At position 732 my forward and reverse readings are incompatible. what could be the reason for this. there is no problem in the others. there are two different peaks at this position in the...

05 February 2024 3,994 0 View

Is it possible to reuse used cellulose membranes? Is there a proper procedure?

I want to reuse the cellulose membranes I used in the experiments. Can you help me find a procedure on this?

23 April 2023 9,936 0 View

How can I stabilize Electroless Ni Bath solution?

The solution I prepared is not stabilizing. The depositing process is happening instantaneous. After a couple of seconds, free nickels in solution just precipitates. Any idea about preventing this...

25 November 2022 9,007 0 View

How to use a throttling valve?

For example if I use a throttling valve in order to cool a gas by using the joule thomson effect, how can I adjust the valve so that the gas reduces its pressure to a desired value? For example...

11 July 2021 8,140 4 View

Fluid behavior in a condenser ?

Lets say i want to cool a fluid(gas) in a condenser. The fluid(gas) to be cooled enters the condenser with a temperature of 200 K and changes its phase at 150 K(liquid now) and will leave the...

06 July 2021 7,001 1 View

How to plot the cooling curve of a heat exchanger ?

If the entrance and exit teperatures of a fluid which is flowing through a heat exchanger is known, how could i plot the cooling curve of the fluid along the tube? The overall heat coefficient,...

17 March 2021 9,724 9 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 7,069 5 View

Necessary tube lenght to cool Natural gas in a dry-ice cooling bath?

I have a tank which contains natural gas at 250 Bar and 293 Kelvin. I want to cool the gas in a dry-ice cooling bath to about 195 Kelvin. The gas will flow in a copper-tube through the bath with a...

27 February 2021 8,578 1 View

Exit velocity of natural gas from pressurized tank?

Hi Guys. I'm a mechanical engineer and have a bit trouble, would be very glad if you could help me with my questions. I have a pressurized tank which contains Natural Gas at 200 Bar and 293...

26 February 2021 6,758 3 View

How can I model the laser melting effect on metal surfaces with ANSYS CFD?

Within the scope of my Ph.D. thesis, I want to determine the thermal distribution, melt pool, and melting/solidification processes in the relevant region by melting metal surfaces with a laser...

27 September 2020 5,353 3 View

How to learn more about SPSS and its Application?

I would like to learn more about SPSS and Its application especially in regards to data analysis. Please suggest me how I can learn more about it. Thank you so much.

11 August 2024 9,101 4 View

Can I base on reverse DNA sequences to perform alignment, convert to amino acids and GenBank submission?

I have reverse sequences (AB1 format), can I base on reverse DNA sequences to perform nucleotide alignment, convert nucleotides to amino acids and deposit the sequence in GenBank database?

11 August 2024 5,138 1 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 View

Text-Communication from the M1 Hand Area using BCI—and then there is Elon Musk?

Willett, Shenoy et al. (2021) have developed a brain computer interface (BCI) that used neural signal collected from the hand area of the motor cortex (area M1) of a paralyzed patient. The...

10 August 2024 7,180 0 View

Handling Missing Data and Building a Predictive Model with Incomplete Information ?

I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...

10 August 2024 4,005 2 View

Has anyone applied Python in the field of textile engineering for data analysis, automation, or smart textiles?

I'm currently exploring the application of Python in textile engineering, specifically in areas like data analysis, process automation, and the development of smart textiles. I'm interested in...

10 August 2024 7,429 2 View

How can I use the cif data obtained from rietveld refinement extracted via gsas2, for microstructural analysis using ETEX software?

09 August 2024 7,718 0 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

How to prepare the nanoparticle treated fungal sample for Environmental SEM analysis?

A fungal strain was treated with nanoparticles. We want to do an environmental SEM analysis. So could anyone share your views on preparing the sample? Thank you.

07 August 2024 5,307 1 View

How to normalize and take the significance of the MTT OD values with 3 replicates for the same cell-line?

Hi, I have a question about normalizing the MTT OD values for doing the statistical analysis. So, if we have 3 different plates and we call them 3 different replicates, so, first we would...

07 August 2024 8,106 4 View