An obstacle in GWR method (in arcMap)?

Results in OLS method, illustrate a strong relationship between 3 explanatory variables and a dependent variable; however, when it comes to GWR method(using the same explanatory variables),...

27 December 2020 3,508 1 View

What are the effect of data spread on Random Forest model performance?

Since I am using the Random Forest model in R to predict LST (land surface temperature) from actual LST, I realized that model performance is better in lower Average LSTs, thus I wanted to extract...

14 October 2020 9,278 2 View

What is the major meaning of PCs in Principal Component Analysis?

I am using PCA to extract major meaningful data from many different parameters that are embedded in my remote sensing satellite imagery. I know that PCA is a dimension reduction model and the...

13 September 2020 7,596 7 View

Is there any specific Proportion for training and testing set for remote sensing images?

Can I use one Sentinel image for training my model and another one for testing? Since i have two or three images, I wanted to use one or two image for training and the rest for test. However, I...

20 August 2020 9,028 6 View

Solve open channel flow only for turbulence (Ansys-Fluent)?

I am working on an open channel problem. Multi-phase (water+air) VOF, and k-epsilon turbulence model are utilized. I want to study the turbulent characteristics (for example k and epsilon) of the...

10 June 2020 10,009 4 View

Modeling open-channel flows as single-phase in Ansys-Fluent?

I work on an open-channel problem. My current model is a multi-phase (water+air) VOF, with k-epsilon turbulence model. Due to high computational cost of the current model I want to consider...

10 June 2020 331 14 View

How to reduce computational costs of an open-channel flow in Ansys-Fluent?

I am working on an open-channel multi-phase (water+air) flow with k-epsilon turbulence model. How can the computational cost of the model be minimized, while the accuracy and convergence are ensured?

10 June 2020 3,629 8 View

Is it possible to use plant extract as natural sterilizer?

For economic reasons, sterilzation against covid_19 is very necessary, so is it possible to use plant extract?

11 May 2020 2,674 14 View

How to subdivide an RSM (Response Surface Method) domain?

A question just came to my mind! I appreciate any helpful answers. Consider a problem that there are a number of input variables (for example 5 variables), and we have one output parameter. The...

08 April 2020 8,622 3 View

What is the best type of classification(clustering method)?

Currently, I am using SENTINEL2 satellite images in finding the spectral signature of a phenomenon in my study area, therefore I want to use a supervised classification method that specifically...

04 April 2020 4,926 11 View

Is secondary metabolite production more at vegetative growth stage or during reproductive stage?

Hi, I am working on the effect of heavy metals on a medicinal plant by pot experimentation. Analyzing the effect of heavy metals on secondary metabolites is one of the parameters. I will be...

11 February 2021 6,683 6 View

How to reduce or increase CFU/ml value ?

I collected the water sample from pond and 1 ml of pond sample diluted with 9ml with water and 100 microliter was cultured into the MacConkey agar plates .Finally,80 colonies were formed in the...

24 January 2021 1,925 3 View

Which test to use check normality for count data if I have 3 treatments and one dependent variable?

I am working on a experimental design. I have three treatments(three temperatures) . I have 18 fish under each sample and after a desired time I will check if there is any variation in their...

01 January 2021 9,167 3 View

What are the best models of remote sensors that can be used to monitor water quality in fish ponds?

It has become necessary that such sensors be present in fish farms to maintain water quality and control the spread of disease

30 December 2020 8,293 3 View

Which connectivity metric is best to compare changes in habitat over time (PC, PCnum or EC(PC)? Which is best for prioritization of restoration?

I am currently researching a network of species movement between temporary ponds using Least Cost Paths. With Conefor I have calculated the PCnum, EC(PC), and PC (probability of Connectivity, as...

23 November 2020 6,298 3 View

Why do I receive the sae mesage several times?

26 October 2020 409 1 View

Rapid color change in fishes?

I have noted dramatically change in color on the body of some marine fishes. For example, I saw a dramatically change from a "intense-yellow" color to "brown" color (normal color), just in one...

19 October 2020 2,717 6 View

What are the trends and gaps in ecology of temporary ponds?

Is climate change investigation the only way to undertake new findings and innovation in this field?

18 September 2020 8,607 3 View

1. What is the behavior of nanoparticles of gold at cyanide solution surface?

I'm interested about floating nanogold particles on the surface of cyanide solution! What % of nanoparticles is loosed from the pregnant solution ponds during heap leaching?

31 August 2020 1,377 2 View

What are the suitable methods to extract water quality data from Landsat 8 satellite images?

There are various methods/ algorithms used to extract water quality data from satellite images. Most of them are applied for large water bodies. I am looking for a suitable method to extract water...

29 August 2020 5,204 3 View