JRC was developed long ago - 1973. By now there are about 50 equations associated with JRC. But almost nobody uses 3D tilt tests, as intended. Why?

14 December 2017 0 3K Report

The 'standard' set of 10 JRC profiles, chosen from about 400 measurements on 130 joint profiles, are 2D and for guidance only. Of course subjective in nature when used for estimation. Why so few 3D tilt tests?

Badges
Science topic

More Nick Ryland Barton's questions See All

Is multivariate regression analysis appropriate in analysing ordinal, observational data within a non-inferiority study?

Good evening, In reply to the peer review of a paper up for publication, I've been asked to consider multivariate regression analysis. In analysing patient data we looked to show the safety of...

20 December 2020 8,426 5 View

No title

Engineering geologists may know that the originators of the empirical (a posteriori) Q-system method of rock mass classification for single-shell tunnel and cavern support estimation, were Barton...

13 December 2020 5,103 3 View

Does anyone have good examples of how aesthetic standards have influenced creative design in building structures?

My research is looking at the influence of creative design and technical standards on the development of architecture during a period of history. This has relevance to the modern day in terms of a...

05 November 2020 5,214 6 View

Using both dichotomous and polytomous indicators for a latent variable in a path model?

Hi all! I'm conducting a study where I have a designed a path model wherein most latent variables have polytomous indicators (ordinal data). However, one instrument I intend on using measures a...

26 March 2020 5,967 3 View

Effect of excess RBC in PRP injections?

Ive been using sodium citrate and acd-a collection tubes to spin blood and extract platelets for PRP. The collection tubes I use do not have the separating gel. Ive noticed that in order to get...

04 February 2020 3,177 3 View

Is the calculation of AVE and composite reliability after EFA recommended?

Greetings! The link to the Todd Grande tutorial below demonstrating the calculation of AVE and composite reliability to factor loadings appears to be popular viewing. My question is would you...

08 December 2019 711 4 View

Can you offer arguments for and against using exploratory factor analysis deductively?

Greetings! Please offer your thoughts on my general question regarding factor analysis. If one is purely concerned with demonstrating convergent and discriminant construct validity is the use of...

29 August 2019 4,589 3 View

How to get beta diversity values for each plot in Betapart (R)?

Simple question, I think. We have 125 plots, each sampled for plant species pre- and post-fire. We're using Betapart in R. Beta.temp produces three nice columns showing the change in beta...

18 July 2019 2,595 1 View

Beginners advice please - testing relationships between latent constructs for the first time?

Greetings. Following a qualitative exploration of my research topic, I am embarking on the quantitative follow-up phase of my research. I want to test the relationships between 10 predictor...

04 March 2019 4,279 3 View

Any suggestions for software that will interpolate test hole data in 3D?

I'm looking at Earth Volumetric Studio, Arc Hydro Groundwater with Subsurface Analyst add on, and Hydro GeoAnalyst. I'm working with large testhole data sets and want to create 2D cross sections...

24 February 2019 7,157 3 View

Joint behaviour in Abaqus is not captured well?

I am working on roof joint and trying to simulate the behaviour in Abaqus. I am successful in running the model but the final graph does not follow the experimental curve in the negative direction...

01 March 2021 6,661 3 View

How can we limit artifacts caused by rotation in fiber photometry?

We are trying to run fiber photometry experiments for long time scales, but we get these sinusoidal artifacts that come up. We think they may be caused by twisting of the fiber optic subject...

25 February 2021 568 1 View

What software programs can directly simulate Additive Manufacturing Directed Energy Deposition (DED)?

I understand there are a lot of software programs that can simulate DED by going through specific modeling, simulation, and commands. For me, that was time consuming and results were not accurate....

24 February 2021 4,428 3 View

I am looking for a simple software program to model 3D chemical bonds. The purpose is to generate high-quality graphical abstracts. Any suggestion?

Hello everyone: I am looking for a simple software program to model chemical bonds. The purpose is to generate a high-quality graphical abstract for a top leading journal in the field of...

23 February 2021 8,012 3 View

Which programs are to be used to register 2D image onto a 3D image data set?

I am trying to register a light micrograph onto a 3D CT data set, as I want to extract the corresponding image from the CT data set. Is there any software or program can do this accurately? I am...

21 February 2021 8,220 3 View

What is the better software for approximation of 3D surface with equations?

I have a massive of x, y, z coordinates of 2D surface in 3D space, which builded in Ansys HFSS or AutoCAD. How can I get the analitical aproximation of this surface by formulas?

21 February 2021 3,444 7 View

How can I obtain Reaction Forces in ABAQUS?

I am trying to simulate a simplified version of a beam resting on 10 points using Abaqus. The solutions I want to obtain are the Reaction Forces in each resting point or area when applying a...

21 February 2021 3,075 2 View

How to convert 2D stack images to 3D to obtain surface area of nucleus?

I have 15 slices of the nucleus at different z-heights from confocal imaging. I would like to use these slices to reconstruct the 3D nucleus and ultimately estimate the surface area of the...

20 February 2021 6,967 1 View

How to get the vector of a specific vibration mode in phonon dispersion?

For example, I have this phonon dispersion(Fig. 1), and now I would like get vector of atoms which describes TA1 in P. I know v_sim can show vibrational animation of specific mode, but I do not...

20 February 2021 4,332 4 View

Has anyone used deep learning for 2D/3D REGISTRATION ?

I am a Master student in Biomedical (Bio-electrical) Engineering and work on " 2D-3D registration ( CT and X-Ray) as my thesis. I created DRR from CT and want use CNN( Convolutional Neural...

19 February 2021 6,354 3 View