How can I find out the area of a TEM micrograph?

I am working with size distributions of nanoparticles. But I also need to show my results as a function of area (#NP/area). Does anybody know how calculate the area of a TEM micrograph?

04 May 2014 6,971 4 View

How much UV-light exposure time is required to disinfect a laminar flow hood?

How much UV-light exposure time is required to disinfect a laminar flow hood?

06 July 2013 7,980 19 View

Which substrate is the best for Saintpaulia ionantha (african violet)?

Hi I am acclimating African violet, but I need help to choose the best substrate I have 4 options: 1.- peat moss 2.- peat moss (25%) & perlite (75%) 3.- peat moss (50%) & perlite (50%) 4.- peat...

06 July 2013 8,839 0 View

If you are measuring the interplanar spacing, what is the justified % of error to consider?

Hi I am measuring the interplanar spacing of some nanoparticles, but many of them are not exactly as the fcc that have to be. I look for an aproximate value to mine, But I like know what is...

06 July 2013 8,329 0 View

Explant, propagule or plant? How do you say....?

I am writing a protocol about the acclimatization of a plant But I don't know how to say : when I retire the culture of the medium, can I say that I obtain the plant, or is there another...

05 June 2013 1,110 1 View

Eucaryotic enzyme in lactobacillus plantarum

I want to insert papain which is a eucaryotic enzyme but contains 3 disulfure bonds. How can I do that such that lactobacillus plantarum expresses the enzyme with the correct structure?? I am...

04 May 2013 6,299 0 View

Fourier Transformation and lattice parameters.

I am working in the characterization of Silver nanoparticles, but I don't know exactly how to use my results of Fourier transformation specially in the angles and relate to silver lattice parameters.

04 May 2013 5,708 1 View

Optical properties for photoluminescence?

03 April 2013 480 2 View

A saccharomyces cerevisae vector with 35S promoter/

Does anybody know about a yeast plasmid that I could use to overexpress an ADH1 (Alcohol deshydrogenase 1) and that use a 35S enhancer?

02 March 2013 3,259 5 View

Does anyone have tables of lattice parameter?

I am trying to know the form of my nanoparticles of Ag, but I don't have the lattice tables, to compare the data of my fourier transform.

02 March 2013 7,094 8 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

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

What is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 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

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

No title

02 March 2021 3,060 3 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View