XRF analysis of 45s5 analysis?

I've sent my synthesized 45s5 powder and a commercial 45s5 powder to XRF analysis but in both of them the amount of Na2O is about 15 percent and LOI is around 40 percent and it makes the aount of...

29 January 2021 239 4 View

Sol-gel synthesis of 45S5?

I've synthesized 45S5 bioglass by sol-gel method and my XRD and FTIR results are similar to 45S5 bioglass but my EDX result has differences and instead of Si and Na the amount of Ca is higher....

29 December 2020 4,847 2 View

Sol-gel Synthesis of hydroxyapatite?

I use Ca(NO3)2.4H2O and P2O5 as precursors and Sol-gel method to synthesis my powder but the CA/P ratio is more than stochiometric (167) and my powder is dark. Does anyone know why this happens?

27 December 2020 1,574 5 View

Could anyone help me with this error Exception has occurred: ValueError?

I have downloaded monthly mean wind speed of terraclimate data for 20 years (2000-2019) which have NetCDF format, but unfortunately, each year has a single NetCDF file, and I want to merge them...

25 November 2020 8,477 2 View

Has anyone used Breaks For Additive Season and Trend for decomposing the time series into trend,and season in R package?

12 September 2020 1,513 3 View

How show NDVI MODIS index (MOD13A1) in Arc GIS?This collection of MODIS has calculated NDVI index and i want to show this index in my study area?

This collection of MODIS has 2 options for calculating NDVI index. First, we can calculate it from NDVI formula or we can use NDVI index that MODIS has calculated. I use both of them but they are...

25 August 2020 2,419 3 View

Has anyone used Maximum likelihood or Support vector machine (SVM) for image classification?

Hello I'm working on a project that I want to detect forest and deforestation areas. I need some information about Maximum-likelihood or Support vector machine (SVM) for image classification.

22 August 2020 1,896 3 View

How we can use the Transmisivity of light colors (rtn, gtn, and btn) in simulating a coated glass with red dyes in Radiance?

We want to simulate a red coated glass in Radiance. The UV-VIS spectroscopy analysis was conducted and optical characteristics of the red glass including transmittance and absorbance were...

16 March 2020 3,492 5 View

Model game as a discrete-time Markov chain?

Model game as a discrete-time Markov chain

30 December 2019 5,346 3 View

How to do the mathematical modeling for solar dryer by curve fitting toolbox MATLAB?

In the case of mathematical modeling for solar dryers, with the MATLAB software and curve fitting toolbox, If there is Educational File please send. ( Or explanation ). regards

10 January 2019 3,222 2 View

How to code open-ended questions in SPSS?

Hello all, In SPSS I am going to code 2 open-ended questions. I have already read all the answers and I made a list of the most important categories to which I can code the answers. This question...

02 March 2021 1,757 4 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

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View

Can anyone provide the Support vector regression code structure of LIBSVM MATLAB or python ?

Please, if Gaussian Parameter optimization is possible in this code structure

28 February 2021 278 3 View

How to modify Johnson cook equation in ABAQUS?

I wanted to add an extra parameter to the existing Johnson cook equation in the ABAQUS simulation. How to add those extra parameters. Ref: A modified Johnson-Cook material model with strain...

28 February 2021 4,841 3 View

How can we simulate an hyperelastic-viscoelastic behavor with Ansys APDL?

I am working on modeling and simulation of biomecanical material behaviour, I have succeded on simulating skin using anisotropic hyperelastic material, on APDL and in our lab's finite element...

28 February 2021 552 3 View

No module named 'tensorflow.keras.backend.tensorflow_backend' ?

System Description Cuda 11.2 GeForce GTX 1080ti tensorflow version 2.4.1 keras version 2.2.0 python version 3.8 I was getting the below error when I try to run my code on the...

25 February 2021 6,673 2 View

How could I process data in RCT to include it in meta-analysis?

I'm in the process of doing a meta-analysis and have encountered some problems with the RCT data. One of my outcom is muscle strength. In one study, I have three different measurements of muscle...

25 February 2021 7,603 3 View