What are the options for global scale hydrology DEM?

Hello, I am working on a global scale hydrology GIS project delineating global watersheds and doing some data analysis. I have in the past used hydro1K from the USGS that cover the entire world....

18 February 2021 5,109 5 View

Can anyone help me with meta-analyses on classification ML models?

I am working on a meta-analysis for classification methods (end goal is developing a tool selection framework) and I am having a difficult time finding similar studies. Does anyone know any...

25 October 2020 2,323 4 View

Hello, can anyone recommend source of a user friendly and readily available Analytic Hierarchy Process (AHP) software for my project work?

Hello, I'm seeking to make an optimal oil and gas multi-criteria project management decision using Analytic Hierarchy Process (AHP). Thanks to revert with source of applicable professional...

01 September 2020 5,559 15 View

What approach is most suitable for boosting innovation in a Nigeria's tertiary institution to enable it provide solutions to societal challenges?

This question stems from the fact that Nigeria has over 20 Electrical Engineering departments that have not provided the Nigerian society with a sustainable, environmental friendly option to curb...

04 September 2019 5,166 6 View

How to take SEM (Scanning Electron Microscopy) and TEM (Transmission Electron Microscopy)?

I want to take the SEM and TEM images of samples I synthesized. I synthesized g-C3N4 (Graphitic Carbon Nitride). If I need to take SEM and TEM, should I disperse the obtained powder in a medium...

23 August 2019 1,892 9 View

What are the basic tests required for Supercapacitors?

I am planning to shift focus from batteries to supercapacitors. I would like to know if I synthesize materials for a supercapacitor, WHAT are the basic tests that need to be conducted?

16 August 2019 5,184 3 View

What are the possible solvent mediums to disperse g-C3N4 (Graphitic Carbon Nitride) ?

I need to disperse g-C3N4 in a medium. Please give suggestions. I want to create a thin film; MXene is dispersible in water, so I want to know if g-C3N4 is also dispersible in water, so that I can...

12 August 2019 667 2 View

How do you calculate CFU/g soil?

Dear All, I need your help on how to calculate CFU/g soil. I would greatly appreciate if you could check if my calculation is correct. 5 g of soil was placed into 50 mL water. The solution was...

21 April 2019 8,013 8 View

Can I replace missing values in a binary data with a zero?

I am working on three different survey data; each has 20 binary variables for Hierarchical Cluster Analysis (HCA) on SPSS. Out of the 441, 2869 and 2543 total samples for each survey, only 42...

22 October 2018 6,549 10 View

How reliable is X-ray flourescence (XRF) in determining elemental contents of biological samples?

I want to seek the opinions of experts in the field of environmental science. I intend to determine elemental contents of some freeze dried plant samples collected after an experiment. Since I...

12 September 2017 4,237 10 View

How UAV or drone can be beneficial to better estimate crop yield?

As we know, crop yield estimation has been done traditionally with farmer's expert knowledge, deductive sampling in representative areas, and remote sensing with satellite imagery. Farmer's Expert...

01 March 2021 3,468 3 View

Where to find data on trees in tropical agroforestry?

Hi, I'm looking for data (mainly related to management: growth rate, canopy size, soil and climate preferences, etc.) about tropical trees used in tropical agroforestry. Have you ever heard about...

28 February 2021 7,356 8 View

Analysis of CRD two factor using R studio ?

Hello everyone. I have conducted the research on post harvest longevity of tomato crop using plastic packaging and different doses of chemicals as two different factors. The design of experiment I...

28 February 2021 8,189 3 View

How long do vaccines protect us against COVID 19?

Or will we have to get vaccinated every year, as in the case of influenza?

27 February 2021 1,048 5 View

The Shannon's index is inversely proportional to Simpson's index (1-D)?

I'm having a problem with my bloxplot with Shannon's and Simpson's indexs. The value of Shannon for my Community 1 indicating higher diversity (in relation of the Community 2), but have lower...

26 February 2021 3,033 9 View

Where i will get the Desmodium and Napier grass seeds?

26 February 2021 975 4 View

What are the LAB methodologies (procedures, equipment etc) for CO2 enrichment experiments to study crop responses?

I am doing a proposal for a research entitled 'GRAIN YIELD AND QUALITY RESPONSES OF WHEAT GENOTYPES UNDER CO2 ENRICHMENT AND EXTREME EVENTS' I will be using climate chamber and I would like to...

18 February 2021 6,494 4 View

Can COVID-19 vaccines protect against the emerging strains of SARS-CoV-2?

Can COVID-19 vaccines protect against the emerging strains of SARS-CoV-2?

18 February 2021 8,221 8 View

How to calculate the TCID50 when the highest CPE is 50% or less?

I am doing TCID50 to measure progeny virus and some treatments protected the cells in a way that the highest CPE observed is 50% or less. How should I do the titre calculation in that case? Thank you!

16 February 2021 8,768 1 View

Any recommendations for methods to analyze elephant space-use (using GPS) and correlating this with changes in NDVI?

For my Masters I am looking into elephant space-use and its effect on vegetation change. I have elephant GPS collar data and was going to use Google Earth Engine to obtain NDVI values. I would...

16 February 2021 7,097 3 View