How can standard reference materials be prepared?

I want to know if I can prepare a standard solution with uncertainty equals to zero.

04 May 2019 3,232 5 View

How can we determine the lifetime of battery?

31 December 2016 1,334 0 View

I want to solve the Millennium Problems ?

11 December 2015 1,511 4 View

What are the best or recommended books in chemistry, physics and mathematics?

10 November 2015 8,368 4 View

Recycling of materials ?

10 November 2015 4,686 1 View

Analytical chemistry\ nano material analysis ,nuclear material analysis and instrumental analysis?

How can someone be expert in analytical chemistry especially in nano material analysis ,nuclear material analysis and instrumental analysis? Please, could you mention the name of some books...

08 September 2015 2,392 2 View

Does anyone have research papers on scientists that discover structure of the atom?

I want to know history of discovery of atom structure ,the scientists and their research papers or experiments . as John Dalton,Bohr and Arnold Sommerfeld

07 August 2015 7,243 6 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

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

What kind of intervention will be relevant to increase motivation among young sport trainees?

Any suggestion on what book to read is also welcome.

03 March 2021 1,646 4 View