Can I measure absorbance efficiency with wavelength in a spectrophotometer?

I measure the wavelength of material in a spectrophotometer and it peaks at 275 and its absorbance is 100. I mix it with an adsorbent and it adsorbs the first material, but when I measure the...

16 February 2021 7,515 5 View

Selection of months in SPEI time series (6,9,12,24) ?

I did SPI and SPEI work through R studio. As you know, r program for each month; We draw results for 1, 3, 6, 9, 12 and 24 months. However, when interpreting the results, we interpret the 3-month...

01 January 2021 8,223 5 View

Is there a source where I can read the history of the hospitality business?

Dear Tourism Scholars, I am writing a book chapter about the history of the hospitality business, globally. I have read lots of papers. However, I still feel that there are plenty of them that I...

25 May 2020 6,025 7 View

How to calculate enzyme activity?

Hi; I want to find out some plant extract effects on hemolymph phenoloxidase enzyme activity. I use L-DOPA as a substrate and spectrophotometer at 492 nm. I get absorbance for different...

06 March 2019 1,580 2 View

What is the best method for estimate ciliate population in lakes?

One of the main calculation method for ciliates abundances is using Madoni(1984) sub-sample methodology. However for ciliates is anybody using other methods and how, to calculate abundance in lake?

22 September 2018 7,320 2 View

Recommendation of a book for learning SAS

since SAS university edition is out and freely available for non-commercial use (or at least what i understand), i want to buy a book for learning SAS for general statistical needs which i can...

13 August 2017 7,894 3 View

No title

Thank you for your help.

15 September 2016 1,848 8 View

Which markers best differentiate bovine neutrophils, macrophages and lymphocytes for flow cytometry cell sorting?

I am going to separate the bovine white blood cells namely; neutrophils, macrophages, and lymphocytes from bovine milk by flow cytometry. The surface markers for bovine leukocytes are a bt...

04 July 2013 8,612 11 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

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 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

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

Why does blocking with my immunogenic peptide cause nuclear fluorescence in ICC?

Hi all, I am validating a polyclonal antibody raised against human ANT4, through WB and ICC. In most of my controls, the antibody shows very little off-target binding, but when I pre-incubate the...

03 March 2021 5,999 3 View

Why can't make aluminum nitride film successfully by use sputter?

We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...

03 March 2021 7,975 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