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

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 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

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 3 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 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

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View