How can one find the wavelength required for bond dissociation in a molecule ? What techniques are available ?

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Minimum concentration of protein to be injected for detectable peaks of protein in 16/60 Sephacryl S-100 HR column for SEC-FPLC?

Hello Peers, Warm wishes to all. I am a new user of the Cytiva AKTA Start system for SEC with a column, HiPrep 16/60 Sephacryl S-100 HR (120 ml column volume). I am not sure about the minimum...

03 June 2024 7,713 2 View

How to split molecules into test and training set in 3D-QSAR?

Hi peers and experts! I am new to 3D-QSAR and tried to build a model based on 34 molecules, split into 10 test and 24 training sets. In the end, a poor model is evident from r2 and q2 values....

08 April 2024 2,785 6 View

What is Repeated Earthquakes?

What is the concept of repeated earthquakes? How does the dynamic analysis is performed under repeated earthquake? Is this done in a different way that IDA analysis? How the ground motion data...

02 November 2023 4,884 4 View

While doing simulation on SCAPS-1D for the CdTe/CdS solar cell, I am getting a negative QE for higher wavelength range?

I required some data for the study related to QE of solar cell, but the problem is that I am getting negative QE values at higher wavelength range or at photon energy less than the band gap of...

11 October 2023 5,729 0 View

Does the results obtained with the cracked version of SAP2000 match with licensed version of SAP2000?

I am trying to verify the results obtained by modal analysis and response analysis of a G+4 RC hill Building with the base paper results but unfortunately couldn`t. Although I have followed all...

09 October 2023 7,390 9 View

How to represent species complexes in binomial nomenclature?

What would be the correct way of stating that the particular taxon belongs to a species complex, during identification? For example, a gecko that belongs to the Hemidactylus brookii complex. Thank...

22 September 2023 942 6 View

Why my Ni structure is not converging after applying a strain in X-direction?

Please find the attached Ni Quantum Espresso Input file. &CONTROL calculation = 'scf' verbosity = 'high' restart_mode = 'from_scratch' tstress = .true....

11 September 2023 9,925 0 View

What is the role of disorder in vortex dynamics and vortex lattice melting?

Unconventional superconductivity

30 July 2023 9,168 2 View

How to select the pseudo potential in case multi-component alloys In Quantum Espresso?

I am going to simulate the alloy having three elements in it. I want to know how to select the Pseudo Potential for different alloy elements.

25 July 2023 7,425 1 View

How to calculate the force on each atom after applying the strain on the crystal system in Quantum Espresso?

Here the Ni has equilibrium lattice constant of 3.52 and I applied the 20% strain on x y and z axis. &CONTROL calculation = 'scf' verbosity = 'high' tstress =...

21 July 2023 611 12 View

GC-MS retention index prediticon?

Hello experts, Does anyone know any free software about retention index prediction ?

08 August 2024 7,403 2 View

Can you suggest reliable sources defining "3D mesh" and "3D city models"?

Dear fellow researchers, I am currently working on a paper where I need to provide a reliable reference that defines and distinguishes between 3D mesh models and 3D city models. Although I am...

06 August 2024 9,986 2 View

AUX gas reading problem on QE with full MS and PRM method in one run?

Dear QE-users, In the method where full MS positive mode and PRM mode are used, we always get an incorrect auxiliary gas reading (41 instead of 25). This only happens in this method; other...

06 August 2024 4,953 0 View

Absorption coefficient of methane?

Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?

06 August 2024 980 5 View

How can I inoculate a lyophilized anaerobic bacteria into the culture medium without an anaerobic chamber?

There are anaerobic gas pak jars and environment providers in the laboratory that provide anaerobic environmental conditions for the growth of anaerobic bacteria. However, there is no anaerobic...

05 August 2024 4,945 3 View

What are the shear and normal stiffness values of an LLDPE liner in 3D numerical modeling of a stockpile?

I am seeking experimental or applicable data for the liner (LLDPE) interface in FLAC3D numerical modeling of a large stockpile. Could you please recommend suitable references? The preferred data...

05 August 2024 3,665 0 View

Is there any Indian Company or Startups, from any universiy or IITS, which manufacture Gas Chromatography instrument , i want to make a custOmized G?

or we can collaborate

01 August 2024 6,705 2 View

Gas chromatography RT detection?

I am working on algal extract to which gas chromatography (Not GC-MS) spectrum I want to discover. My question is can we identify specific compounds using retention time if I compared the RT with...

29 July 2024 8,034 4 View

CAD File of human's & rat's respiratory airways ?

Dear all, I am working on particle deposition in human's & rat's respiratory airways using CFD and I am looking for the 3D CAD file for my simulations (STEP or IGES format). If somone has such...

29 July 2024 1,092 2 View

How does the Retention time effect the Biogas Production?

List down the various factors responsible and how does this effect the overall biogas production when it is related to Hydraulic retention time of the digester based on the feedstock?

27 July 2024 4,800 4 View