How does the pH of medium affect on the color change of anthocyanin pigments, what happens?

Anthocyanin pigments have several colors that vary depending on their influence on a range of factors, including acidity of the medium, temperature, level of plant nutrition, agricultural...

08 September 2019 3,884 3 View

What are the degrees of freedom in statistics?

Degrees of freedom have a very important role in calculating the ANOVA table, what is the meaning of df, and why calculated n-1?

08 September 2019 3,949 3 View

Safety of human life and Nanotechnology?

Is the nano-materials of the elements in the various uses of this technology safe for the health of the worker or the consumer?

08 September 2019 5,827 4 View

Nano-material properties?

Is the magnetization of liquid Nano-composites a practical benefit in improving the quality and productivity of the plant, kindly who has research in this direction to provide us with many thanks?

08 September 2019 6,021 5 View

What is the role of the middle ring for coloring anthocyanin pigments?

There are many color of anthocyanin pigments?

07 August 2019 4,872 2 View

In concrete crack modeling using Extended FEM how one can treat the existence of reinforcement rebar when the crack path intersect this rebar?

The Extended Finite Element is innovative method used for treatment the discontinuity problem that faced the FE model during cracking process. Still a problem raises when the concrete is...

06 July 2018 2,030 4 View

I ask if it is possible to model cracking in reinforced concrete using Extended Finite Element method?

Extended Finite Element (XFE) method is a new approach used to treat the discontinuity results from concrete cracking. It is well known that XFE is applied sufficiently for crack propagation in...

25 February 2018 2,958 3 View

I ask if it is possible to model cracking in reinforced concrete using Extended Finite Element method?

Extended Finite Element (XFE) method is a new approach used to treat the discontinuity results from concrete cracking. It is well known that XFE is applied sufficiently for crack propagation in...

01 February 2018 2,404 4 View

What is the fracture energy?

Brittle materials such as concrete fail by cracking when they are subjected to tensile stress and by crushing when they are subjected to compression. Most of theories of failure applied to theses...

01 February 2018 456 1 View

Is there any design code or code of practice regarding specially shaped reinforced concrete columns?

I am looking for a code of practice for design of reinforced concrete columns having arbitrary cross-sections such as angle, tee of cross shapes

31 December 2017 1,001 0 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

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

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

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 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