Any experience with why high instrument-to-instrument variability using two HIAC instruments ?

My instruments are not giving similarly SVP results

29 December 2020 4,627 1 View

A pragmatic approach of dealing with unemployment of university graduates?

24 March 2019 4,027 4 View

Identifying fossil lizard jaw bones; anyone know of someone who specializes in this?

I have an undergraduate student who is sorting through some fossil lizard jaw bones, but identification to species (or even genus) is challenging. Does anyone know of a good resource (publication...

03 May 2017 5,792 5 View

RNA Quality for q-RT-PCR?

Hi, I am preparing mouse intestinal RNA samples from which I will use RT-PCR to produce cDNA and consequently perform qPCR on this cDNA. My question is, from these electrophoresis results...

19 January 2017 1,284 11 View

Survival Analysis, Time to Event Analysis, SAS?

Hi There,I have a cancer dataset with 170 observations, I calculated the length of progression(in days) as the difference between date of surgery and date of cancer progression. Now that the date...

10 October 2016 623 11 View

Survival Analysis/Time to Event/ SAS ?

Hi There, I have a cancer dataset with 170 observations, I calculated the length of progression(in days) as the difference between date of surgery and date of cancer progression. Now that the date...

09 October 2016 502 3 View

I am running a Logsitic regression with no non events and GEE approach in SAS?

23 May 2016 306 3 View

Trend test in SAS for Adjusted Odds ratios and Disease Status (Yes or No)?

19 May 2016 922 4 View

Can anyone comment on the stability of EdU in PBS?

26 January 2016 6,635 1 View

Drugs /drug candidates with poor water solubility

Does anyone know where to find drugs/ drug candidates with poor water solubility? Like projects that failed due to the poor solubility? Thanks

01 January 1970 7,690 2 View

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 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

Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS?

I need to model masonry and reinforced concrete minarets for my MSc thesis. Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS? (Or any other program for just...

01 March 2021 736 3 View

How to assign different material properties to each element in Abaqus ?

Hello, I am writing a python script to generate my model and write the input file. The problem is I have 1000 elements in my mesh and I want to assign different material properties to each...

01 March 2021 9,511 3 View

How to define tie constraint between rigid body and another part in dynamic explicit model of Abaqus?

Hi dear researchers I connected a rigid body into the part of my structure by tie constraint and then I added displacement to rigid body, in static general step every thing is fine and these two...

28 February 2021 3,442 2 View

How to modify Johnson cook equation in ABAQUS?

I wanted to add an extra parameter to the existing Johnson cook equation in the ABAQUS simulation. How to add those extra parameters. Ref: A modified Johnson-Cook material model with strain...

28 February 2021 4,841 3 View

For modelling epoxy-based matrices (in composites), which model in ABAQUS is the most suitable, Concrete damaged plasticity or Drucker-Prager model?

I am working on developing a micromechanical FE model for predicting kink-band formation in UD composites. To model matrix plasticity, which model, out of Concrete Damaged Plasticity and...

28 February 2021 5,415 1 View

How to find the right number of integration points in second order 3d finite elements?

I am familiar with finite element simulations and numerical schemes like the Gauss Legendre quadrature. I also know that the Gauss integration yields exact values for polynomials up to degree 2n-1...

27 February 2021 6,818 3 View

How can we use a hybrid element in Abaqus Dynamic/Explicit for impressible materials?

Hi, all! How can we use a hybrid element in Abaqus Dynamic/Explicit for impressible materials? I have not find the choice for explicit element in Abaqus CAE. I am wondering whether it is possible...

25 February 2021 9,936 2 View

How can we theoretically calculate Elemental analysis(percentage) of atoms in covalent organic framework?

For example in one research article the Elemental analysis values of COF-TpPa-1 ( Triformylphloroglucinol (Tp) (63 mg, 0.3 mmol), Paraphenylenediamine (Pa-1) (48 mg, 0.45 mmol) are as follows...

24 February 2021 1,265 6 View