What are the engineering methods for feature selection in machine learning?

Hello researchers, I have a dataset that contains 36733 instances, What are the engineering methods to be used for feature selection in machine learning?

09 February 2021 363 11 View

How to improve the clarity of the exported maps from GIS software?

I am performing mapping for some hydrogeological items using GIS and I have a problem with the clarity of the exported maps from it even after I raised their resolution into 1000 dpi, how can I...

25 October 2020 1,804 8 View

Effect of initial dye concentration ( methylene blue) on removal percentage?

i am studying the variables (study of initial dye concentration ) for removing methylene blue (mb) using a composite that i prepared. the results showed that on increasing dye conc, the removal...

01 October 2020 3,016 3 View

What's the difference between using Collagenase P and collagenase A to dissociate mice pancreas tissue into single cells?

Trying to isolate single cells from pancreas for FACS cell sorting. The protocole suggested 0.5mg/ml collagenase P +0.1 ng/ml DNase I per 1 ml of HBSS. Using collagenase A, the tissue wasn't...

14 January 2020 8,866 2 View

What are challenges in PV Floating solar?What Quality parameters we have to check at site?What is process of Earthing Electrical Equipment in Water?

Challenges in PV floting solar

06 August 2019 3,941 3 View

How can we change the saturation degree of a soil using FLAC 2D software and UBCSand model??

UBCSand model is a user defined model to simulate liquefaction.

29 February 2016 4,923 3 View

Should a plant extract be dissolved in DMF or DMSO only for antimicrobial assay?

the extract dissolved in ethyl alcohol gave negative results...could it be due to poor diffusion to agar?

10 October 2015 1,579 9 View

How do I get rid of triethyl amine in a reaction?

Triethylamine was added in excess to a reaction, so how can I get rid of it from my product?

26 November 2014 2,305 12 View

How can I calculate the yield of two products of a reaction?

I have a reaction which gave two products separated by column chromatography. How can I calculate the yield for both of them?

03 November 2014 7,758 6 View

Are there any research or ideas about Multicore Asynchronous Runtime Environment?

11 July 2014 6,146 1 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Can I use the Chlorophyll stability index (CSI) to calculate the stress potential of cyanobacteria that are under stress?

I want to calculate the stress potential of cyanobacterial cells that are inoculated with antagonistic bacteria. My results showed that there is a drastic reduction in the chlorophyll content of...

23 January 2021 331 3 View

Why and how to avoid negative values in optical density by spectrophotometry when measurements corrected by blank solvent?

I am trying to assess chlorophyll-a content from coral tissue using spectrophotometry (with SPECTROstar Nano, BMG). However, I always seem to obtain some negative values in my optical density raw...

20 January 2021 1,542 4 View

Why there is need to calculate the chlorophyll content and chlorophyll index. What protocol should I used for calculating chlorphyll in mustard?

I want to know the best and effective method/ protocol to calculate the chlorophyll from mustard plants. Please suggest some relevant and the methods or protocols from which I can easily calculate...

05 January 2021 9,882 3 View

Hello, can i learn amount of Chlorophyll in Spinach as a mg in 100 grams ?

I have looked on the internet and website but i could not find it so i need yours help please.

26 December 2020 8,354 3 View

What is it the relationship between photochemical efficiency and a chlorophyll a fluorescence in a plant ?

I hope somebody could help in explaining this point

10 December 2020 513 4 View

How can I use the selection matrix in Pymol to select atoms by their number within a cofactor?

I work with photochemical reaction centers (like Photosystems I & II) and it can be helpful to use PyMol to create useful pictures of them. With these proteins, the chlorophylls do all the...

04 December 2020 4,778 2 View

Carbon dioxide sequestered as Blue Carbon in mangroves soil four times more than that of the green carbon, but obtained data does not reflect, why?

Mangroves have the ability to absorb up to four times more carbon dioxide by area than upland terrestrial forest ecosystems, carbon dioxide is stored as blue Carbon in the sediment of the...

27 October 2020 2,262 4 View

Simple clearing method for observation of hand-sectioned wheat leaves?

I am using a toluidine blue O preparation for staining different parts of wheat plants to observe a fungus growing in them. This works really well for lighter tissues of the plant! However, the...

27 October 2020 9,159 1 View

Whether it is compulsory to carry out in-situ water sampling and laboratory-based analysis for a water quality study based on remote sensing?

A study assessed the water quality status using a few parameters such as Chlorophyll a, BOD, COD, TSS and etc to determine the pollution level of water bodies using remote sensing techniques....

19 September 2020 4,839 3 View