How to give port for printed log periodic dipole array antenna in CST?

PLPDA have radiating element on both sides of the substrate. so how to apply port. i have attached the figure below.

03 January 2021 4,005 6 View

I want to design a printed log periodic dipole array antenna on only one side of the substrate. is this acceptable one ?

actually for PLPDA, it is designed on both sides of the substrate for providing 180 degree phase shift between the elements

28 December 2020 3,148 3 View

How to visualize cells seeded on Millicell-HA transwell?

Hi, I am working with Millicell-HA transwell to culture HCE-2 cells. But as the transwell in opaque, not able to visualize the cells. Can someone help me? Thanks in advance.

14 November 2019 3,573 1 View

Can somebody help me with method(s) to analyse and quantify oligonuleotides and protein interactions?

I am looking for an assay design that can help me analyse DNA (oligonucleotides) - protein interactions and provide some means to quantify these interactions. Any help or direction will be much...

14 July 2019 8,475 5 View

What is the calcium concentrations in KSFM and ideal calcium levels for cervical keratinocyte culture?

Hi! I an interested in culturing cervical kerationocytes and calcium levels in media are know to affect their cell growth. I recently obtained two KSFM for the same (one with Calcium and another...

14 May 2019 1,758 3 View

Can we add calcium oxide to graphene oxide?

Suggest any method for the metallisation of graphene oxide

28 January 2019 5,069 3 View

Need large data set of rhinoceros photos (any species)?

We are building an Artificial Intelligence to identify individual endangered species, starting with Sumatran rhinoceros. To train the AI we require many many photos of rhinoceros of any...

11 November 2018 4,788 5 View

Mixed co culture experiment and MTT assays protocol?

Hello, I am trying to understand a co-culture experiment using different ratios of a cancer cell line and hematopoietic stem cell fraction in a mixed co culture. The ratios range from 1 to 1000...

11 October 2018 697 7 View

How to determine the accurate functional titer of a FLAG tag lentiviral particle?

I have a plasmid of >10 kb that I have made into particles in HEK293T. Before inserting the virus in mice, I would like to determine the functional titer. I have a p24 ELISA kit, but I was...

22 May 2018 3,900 3 View

I am working on ISSR primers. I get bands for some samples and a smear in others. Why?

Hi, I am currently working on ISSR primers for my algal samples. When I did PCR for my samples along with some marine algal specimens, I could observe bands for the marine specimens and a smear...

15 May 2018 877 3 View

How to analyze a particular region of my simulation box in GROMACS?

Hi, I am using GROMACS 5.1.4 to simulate water in contact with a surface. I am only interested to calculate some properties of water near the surface. Let's say at a distance of x nm from the...

03 March 2021 9,989 2 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 View

In Molecular Dynamics Simulation, how do I make changes to the force field according to my protein?

Hi In Molecular Dynamics Simulation, how do I make changes to the force field according to my protein? I got this error in the add-ion stage: Fatal error "./ amber99sb-ildn-HHH.ff / force...

01 March 2021 8,747 4 View

Timeout error!! Processor in the loop (PIL) using STM32F4 Matlab 2018a?

Dear Researchers I am trying to perform a PIL simulation using STM32F4 Discovery board and comunication serial USB TO TTL. During simulation I receive the following timeout error: An error...

01 March 2021 2,327 1 View

How can I calculate the rdf of water molecules around 'Na' ions that are closest(adsorbed) to the nanoparticle(solute)?

Hi, I want to calculate the radial distribution function for water molecules around the Na+ ions adsorbed on the surface of a spherical nanoparticle using the gromacs trajectory dynamically? For...

28 February 2021 5,650 1 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

Why initial concentration of Pb not the same as calculated one when testing using AAS?

I am currently doing research on the adsorption of heavy metal using magnetic reduce graphene oxide. I use AAS to determine the concentration of the heavy metal. I prepare the Pb solution with...

26 February 2021 9,580 4 View

How can I assign a velocity along one direction to CO2 molecules in a molecular dynamics simulation using GROMACS?

Dear all, I am trying to perform a MD simulation about the interaction between CO2 and a polymer. I create my model, solvate it and perform the NVT and NPT equilibration. Now I am not able to...

26 February 2021 10,014 3 View

How does GROMACS calculate the average structure of proteins?

I want to get a average structure from a pdb file containing multiple models. I used the command below: gmx cluster -f input.pdb -s topol.tpr -cutoff 20 -method gromos -av GROMACS...

25 February 2021 6,314 1 View

How to search for crystal structure for material with atomic position labelled?

I am using the crystallographic open database and materials project to search for cif file but the exact structure is not mentioned or how can I deduce that the given structure and atomic position...

23 February 2021 6,723 2 View