How to build a polymer pdb file from a monomer pdb file, for using it is an initial configuration in Gromacs?

I am doing my Ph.D. in Materials Science and am completely new to Molecular Dynamics Simulation and Linux. I am using Manjaro Linux 20.1 and have Gromacs 2020.4, VMD 1.9.3, packmol 20.0.10,...

28 October 2020 1,051 3 View

Why are there flow of water from land towards ocean?

Water in land always has a tendency to move towards ocean. I eager to know the reason behind this.

23 January 2020 3,069 5 View

How is dissolved salt in surface water originated in inland areas?

Inland surface contains so many dissolved salts into it. What are the sources of these salts, I like to know.

23 January 2020 7,686 4 View

Which has more evaporation rate surface water or sea water and why?

Surface water resources like ponds, lakes, reservoirs and rivers and sea water undergo solar evaporation in presence of sunlight. I like to know which one has higher evaporation rate.

22 January 2020 4,114 5 View

How can organically bound Nitrogen be determined in soil/sediments?

Most fraction of nitrogen in soil belongs to organic matter present in soil, but soil contains other fractions like nitrate, nitrite and ammonia form together. Then how organic bound nitrogen...

17 January 2020 6,570 6 View

Why are essential elements present in earth crust in abundant than toxic heavy metals?

The composition of earth crust reveals that the biological essential elements are abundant in comparison to the toxic group of heavy metals. What could be the reason behind this?

16 January 2020 2,028 3 View

I am looking for a simultaneous heat and mass transfer model with finite differences?

I am trying to come up with a code for simultaneous heat and mass transfer for water evaporation owing to solar flux. The incoming heat flux contributes to volumetric heat generation within a...

24 October 2018 8,964 1 View

Please suggest me Scopus index journal of Management in india?

As per my PhD submission i need to do 3 scopus indexed papers, can any one suggest me to process in India.

31 March 2018 5,954 9 View

How to determine the sample size from a population of 16000?

I want to draw the sample from KLEF (KL University), which consists of Students, M.tech scholars, PhD scholars and Teaching and Non-teaching staff. Topic is customers loyalty on E-commerce sites...

28 December 2017 7,805 7 View

Sampling distribution for nanomaterials ?

17 April 2016 4,396 6 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 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

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

I have designed reflectarray element and feeding it though Horn Antenna on HFSS. After full wave simulation, I am not getting desired results?

I have designed reflectarray element to generate OAM beams at 5.8GHz and feeding it though Horn Antenna on HFSS. After full wave simulation, i am not getting desired results i.e Radiation pattern...

01 March 2021 9,701 5 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

Microstrip antenna design tutorial of HFSS 3D layout module ?

I have designed a 24 GHz rectangular antenna on HFSS 3D model and got desired results while desing the same antenna with same dimensions I am getting resonance frequency at 27 GHz I am...

28 February 2021 4,426 2 View