Atmospheric correction code in Google Earth Engine (GEE)?

I am looking for options of GEE JavaScript code to perform atmospheric correction of Landsat 7-8 and Sentinel-2 directly within the GEE Code Editor. I intend to use harmonized Landsat 7-8 and...

26 October 2020 7,047 8 View

Purification of Octapeptin C4?

I am doing synthesis of Octapeptin C4 analogues with variable tail moieties as part of my project. I have made the final compound, which is cyclized and all BOCs removed. The problem is, I can't...

16 December 2019 1,730 2 View

How to analyze a two factor RM ANOVA ?

Suppose you have (a) different groups of (m) similar subjects each. You give them all ( i.e the m xa subjects) the same treatment repeatedly for (b) days. You take daily measurements of the...

30 April 2019 8,234 4 View

How to use the values of several categorical variables to create new categories in SPSS?

I will explain my question with a simple hypothetical example. I have a dataset with nodules of the thyroid gland, containing the next three categorical variables: 1. Scan. The value is either...

03 April 2019 6,404 9 View

Help me to formulate this PhD Topic?

The effect of Integrated Soil -Water and Sanitation as an Adaptation Mechanism to Climate Change in Water-Scarce Areas . Can I find also a supervisor?

22 January 2019 3,572 9 View

What are the best references for analyzing data on Stata using statistical functions on the menus instead of typing commands?

I need to analyze data on Stata, but it's a new world for me (I've 25 years of SPSS...) All the tutorials I've found on the internet teach us to type commands on Stata to perform the analysis. I'd...

15 April 2018 5,957 6 View

How do I convert ERA Interim precipitation estimates from kg/m2/s to mm/day?

I want to compare ERA Interim precipitation estimates with ground measurements so i do not know to convert the data from kg/m2/s to mm/day. Thanks in advance Nkiaka

01 March 2016 6,337 16 View

Is there an alternative way of converting Odds Ratios to Risk Ratios without relying on prevalence of a health outcome in unexposed groups?

01 July 2014 5,635 2 View

Can a variable assume the role of a predictor as well as a confounder in the same study? If yes, why? If no, why not?

Example: IN the association between education and family planning, economic status was considered as a confounder. IN the same study, can we consider education as a confounder in the association...

14 February 2014 9,856 8 View

How do I objectively choose a statistical approach when I want to publish?

It is a common concern to hold alpha values at 0.05 and that it is completely arbitrary. I have been interested in using other methods, but I know that there may be pushback from editors to use...

09 September 2013 5,594 5 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

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 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

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 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 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