Are there any suggestions for a research topic on aspects of UN ssytem?

I am currently looking for a topic for my essay for my class. I am allowed to explore any aspects relating to the UN systems. But i have no clue on where to begin. Are there any suggestions?

10 February 2020 9,835 5 View

Do you know how to filter out ring structures containing a specific functional group from a large database?

I have a large database and I am trying to filter out ring structures which contain a particular functional group, for example, thiophene. It has to be within the core ring structures, not...

05 June 2019 8,039 1 View

Where can I find a database of sugars in smiles or sdf format for a cheminformatics study?

I have a list of common names of sugars but I am having trouble converting them into smiles. It's for a cheminformatics based script. For example, 2',6'-Diamino-2',3',4',6'-tetradeoxy-a-D-glucose,...

16 March 2019 6,466 3 View

How can I view the absorption peaks of highly diluted suspension liquids?

I had synthesized MoS2 nanosheets by the help of liquid phase exfoliation using probe sonication. The solvent used was a 50/50(vol%) of IPA/DI water mixture. Pre-processing of the sample was...

30 January 2019 5,421 5 View

Biasing circuit for varactor/pin diode in reconfigurable antenna?

I need to know abt biasing ckt for varactor and PIN diodes to be used in reconfigurable microstrip filter. I have seen ckt given in datasheet. It seems it is having more inductor and capacitors...

06 December 2018 5,543 5 View

Natural frequency of a cantilever in underwater environment obtained is a comlex number. How can i obtained the numeric value of natural frequency?

In comsol i have created underwater environment using pressure acoustic is it the right way to do so?

07 April 2018 7,713 3 View

How to simulate combustion in diesel engine?

29 August 2017 9,883 5 View

Can anyone let me know the value of Hansen solubility parameter for poly-L-lysine or L-Lysine?

04 May 2017 4,271 2 View

How to apply Load ratio (R ) zero for the cyclic loading in the Abaqus?

I am trying to apply cyclic loading on the cell model of cast iron. I need to apply load ratio zero. I have tried to do the same using Amplitude tool in the Load module, using periodic amplitude...

02 February 2017 3,926 3 View

What is the best way to quantify lactoferrin in faecal samples? Is there a quick assay?

glycoprotein

17 August 2016 9,018 1 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 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

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View