Unusually Busy Raman Background?

Hello, I am observing a nearly periodic background spectrum for a wide variety of SERS substrates. I see this response (attached below) for bare Au films, Cu films, and Au nanoparticles on...

15 February 2021 9,922 5 View

What crossover operators can be used for a GA that finds suboptimal positions for a set of buildings?

I'm currently working on my undergraduate thesis where I develop a genetic algorithm that finds suboptimal 2D positions for a set of buildings. The solution representation is a vector of real...

11 January 2021 9,835 4 View

How did Rutherford and Thomson derive the equation for average deflection of a particle hitting an atom?

08 November 2020 9,046 2 View

Converting csv files with data for mapping rainfall on QGIS?

Hi, I am hoping to produce rainfall and temperature maps for a current project in QGIS. I have csv data downloaded which have been imported into QGIS. My aim is to be able to produce rainfall...

10 October 2020 4,930 5 View

How to control variables in a water hammer experiment?

I'm doing a high school experiment on how the impulse of water hammer is affected by pipe diameter, and I'm unsure of how to set up my experiment. My primary concern is safety and validity: - Is...

06 September 2020 1,252 3 View

Incorrect simulated conductance value compared to analytical solution using ANSYS Maxwell 2D?

31 May 2020 7,991 3 View

Reaction of hexamethyldisiloxane (HDMSO)+O2=SiO2+?

I'm giving a presentation on semiconductors and specifically the SiO2 insulating layer. The presentation is on kinetics so I kind of need to know the reaction. Problem is the papers I'm reading...

30 March 2020 8,643 3 View

Efficient preps for chunky human adipose tissue?

Hi all, I aim to isolate SVF from the tissue. However, we sometimes receive big chunks of tissue that is not through liposuction. I've been wondering is there a ingenious way to efficiently prep...

24 February 2020 6,104 1 View

Predicting the Age of home buyers - model based method?

All, I have a data-set which contains information on both the type of property an individual(s) purchased, along with some information on the individuals themselves. However, I am missing age...

19 February 2020 5,728 3 View

Are full-scale performance-based drama projects for adult EFL learners worthwhile?

Hello, I wonder if anyone would be kind enough to help with research for my dissertation concerning attitudes and approaches to full-scale stage or screen performance-based drama projects for...

27 January 2020 3,167 2 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

Can NFL theorem be valid in infinite search space in ML?

NFL theorem is valid for algorithms training in fixed training set. However, the general characteristic of algorithms in expanded or open dataset has not been proved yet. Could you show your...

01 March 2021 1,189 3 View

Does anyone know how to plot my station to a section plot on Ocean Data View (ODV)?

I made a vertical section plot with WOA .nc file on ODV, and now I want to plot my stations (csv. file) in it. Does anyone know how to import my points to the section? They are two different...

01 March 2021 3,610 1 View

How to address this issue in the analysis of Real-Time PCR results?

To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...

01 March 2021 8,683 4 View

How to arrange coordinates and extract climate dataset out of MPI-ESM-MR netcdf files?

Have a nice day everyone, I'm stuck in extracting datasets out of MPI-ESM-MR netcdf files because the latitude ranges from -3*10^6 to 3*10^6 and longitude ranges -5,9*10^6 to 5,9*10^6. Plus, the...

28 February 2021 912 3 View

Is there any Machine Learning/AI algorithm that lets you predict with incomplete features without missing value imputation process?

For instance, the model is trained with A,B,C,D,E features to predict F target. Then, I want to make prediction on a new data, but with only A,C,D,E is known without doing missing value imputation...

28 February 2021 1,556 6 View