Single-phase synchronous machine models?

Hi there, In low frequency railways it is common with single-phase synchronous machines. Anyone that knows how to model them dynamically in a trustworhy manner? Moreover, there are many...

18 November 2020 1,357 5 View

I am looking for someone interested in biodiversity in Laos especially butterflies.?

I have a student who during long time has studied the moths in central Laos. She also document them from larvae to butterfly. She speaks English and is looking for possibilities to make a bachelor...

11 June 2020 6,258 2 View

Do anyone with interest in cruise guest behaviour join the EuroCHRIE2020 conference?

Other researchers with specific knowledge, experience and/or interest in cruise guest behaviour (spending)? Best regards, Lars Falk

24 February 2020 8,456 1 View

SPSS results very low?

Dear all, I'm currently conducting the tests for my masters trying to analyze the outcome from regression results. Unfortunately, no matter what I try the regression coefficient always shows very...

23 October 2019 8,444 3 View

What's the most processive PCR enzyme?

I'm looking at a scenario where the property that matters most is processivity. I can live with elevated error rates.

16 April 2018 7,140 2 View

How reliable are calculated anharmonic frequencies with those warnings in the Gaussian output?

Dear RG Community, i am new to Gaussian and Computational Physics (/Chemistry). My goal is to calculate the 'IR spectrum' of liqiud Acetonitrile CH3CN (C3V point group) and its isotopologues...

05 December 2017 9,305 8 View

Does restricting a notion of rings to finite-dimensional algebras make it a brand new notion, with all implications thereto pertaining?

self-explanatory to the extent that I stay polite

18 October 2017 7,020 4 View

Looking for literature and tests for master-thesis about the relationship between work-clothes (suits vs. casual) and motivation, stress, engagement

Current master-thesis is about organisational psychology and focusses on the relationship between working clothes and their effects on work-related aspects like motivation, distress and...

26 June 2017 2,665 2 View

Where can i find simplistic but relevant equations describing the rail curvature running resistance of trains?

What are the main components that govern the curvature running resistance? Wheel radius? Train speed? Rail curvature? What more?

31 August 2016 1,543 6 View

What models for Rahbek and Mosconi method for exogenous variables in VECM?

25 May 2016 9,565 3 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

How relevant is Mini slump cone?

for all the rheology researchers, my question is, how relevant is a mini slump cone (smaller than a standard 50 cent rheometer). currently based on testing, the thickness of slumped material is...

26 February 2021 3,668 1 View

Can we recognize signs of the "volatility clustering" property of a time series in its time domain plot?

My purpose is to recognize the volatility clustering property without statistical tests such as The Lagrange Multiplier (LM) test.

24 February 2021 4,150 3 View

Is an issue for serial correlation when it is not found with the xtreg, fe on its lag ,but the lag become significant when you've vce(robust) std. er?

Dear Sir/Madam I have a dateset that suffers from heteroskedasticity and serial correlation. To address the serial correlation lag my variables of the fixed effect regression. I retrieve the...

15 February 2021 3,700 1 View

How to estimate/know plant virus concentration to make a standard curve in ELISA after serial dilution?

Hello, I am trying to know tomato virus titer/concentration in samples and I will perform serial dilution of the positive control. I wanted to ask How to estimate/know plant virus concentration to...

13 February 2021 6,534 4 View

How to best represent qPCR DD Ct or D Ct as a box plot?

I've been reading up on how to best represent qPCR data, specially on answers given on this site by Dr. Jochen Wilhelm. I understand box plots are the way to go, but I still don't understand them...

11 February 2021 7,228 3 View

How to determine measurement uncertainty of a mass balance?

Hi everyone, I work at a factory plant where they use a mass balance. The problem is that there is an huge difference between the input and output of one element. There are several people working...

10 February 2021 5,764 3 View

What effect size should i use for a meta-analysis when study data violate normality assumptions?

I'm looking for advice regarding what effect size to use for meta-analysis. Our question is whether the number of individuals in a group affects the per-capita productivity of that group. Does...

10 February 2021 5,510 8 View

What is the suitable error estimator for selecting the best model with multiple outputs in Neural network?

I have three outputs, each with a different unit. I am searching for an error estimator with the help of which I can select the most suitable Neural Network configuration. I will have to compute...

26 January 2021 254 5 View

How do I keep duplicates based on specific variable in STATA?

Hello everybody. Im new to STATA and this forum but I hope you can help me. I am doing a research project where I intend to estimate the prevalence of venous thromboembolic events (vte) up to 30...

24 January 2021 665 5 View