Tatsächlich SWCNT vorhanden?

More Ralf Staud's questions See All

In Mindlin's 1936 solution for a buried point load in a homogeneous elastic halfspace, is Fig. 6 of his paper correct?

I'm referring to the paper: Mindlin, R.D. (1936) "Force at a Point in the Interior of a Semi-Infinite Solid", Physics 7, 195-202 (1936). By plotting "w" from Eq. 18 as a function of x for y=z=0,...

20 September 2023 5,852 1 View

What EXACTLY happens in the stacking gel during SDS PAGE?

I have the problem, like several other people before, that large proteins get lost during electrophoresis in the SDS PAGE gel. All protein bands below 80 kDa are perfectly separated as usual, the...

17 October 2021 6,025 8 View

What do you dislike most about MTEX?

Write anything that annoys you or what you think should be changed in the texture analysis toolbox MTEX, see (https://github.com/mtex-toolbox/mtex).

19 March 2018 6,915 10 View

How to determine dominance (hierarchy) in male giraffes?

We are running a project in which we would like to determine the dominance structure of our male giraffes. Currently we have 10 adult males in a population of 39 giraffes. They all live on a small...

22 November 2017 5,204 1 View

Is there any user-friendly, publicly available resource to generate a phylogenetic tree from an ANI distance matrix?

Hello, is there any user-friendly, publicly available resource to generate a phylogenetic tree from an ANI distance matrix? Thanks a lot, Ralf

20 December 2016 3,339 4 View

How to remove a titanium (Ti) layer from a LaSFN9 optical glass substrate? - without etching the glass?

I have optical glass substrates (LaSFN9) that have a 2nm Ti contact layer and 50nm Au layer, those need to be cleaned. The gold comes easily off with a solution of I2 and KI in water. The Ti is...

26 May 2016 7,072 2 View

Photovoltaics: Snail Trail with bubbles in EVA above micro grid fingers. Any idea about process behind or consequences for performance / lifetime?

Dear PV experts,Lots of investigations have been executed on this Snail Trail topic. An a recent plant inspection I found some strange appearence along such trails: Right above of the silver paste...

05 May 2016 8,598 11 View

Simple rubber sheeting algorithm?

I am looking for a simple rubber sheeting algorithm to rectify images. The purpose is to develop a simple tool to automatically rectify a large number of images using four corner coordinates known...

17 July 2014 5,840 3 View

How does a retrovirus insert into the genome?

I am using an EGFP-expressing retrovirus for random insertion into a human cell line. The virus has the basic structure: |5'LTR>----EGFP----|3'LTR> The greater sign indicates the direction of...

09 December 2013 2,663 1 View

Does anyone have experience with genetically matched lymphoblastoid cell line vs PBL as constitutive control in WGS of tumor geneomes?

Does anybody have experience with (or know of anybody) performing whole genome sequencing (WGS) of genetically matched (i.e., from the same individual) peripheral blood leukocyte vs lymphoblastoid...

25 September 2012 6,271 1 View

What is the reason for current dropping in OER , LSV curve?

I tried four trials of the same Copper Phosphides sample in Alkaline medium ( 0.5M KOH) with Hg/HgO reference electrode and Pt as counter electrode. I used 0.001 V/s scan rate for first three...

10 August 2024 3,629 1 View

Adhesion strength of coating?

How can I determine a good adhesion strength range for coatings on polymer surfaces, such as DLC on polymer substrates? Is there a specific threshold for adhesion strength (from T-peel tests)...

10 August 2024 942 3 View

Do interactions between biosphere, carbon cycle, & water cycle impact global warming & interaction between atmosphere & hydrosphere?

How do interactions between the biosphere, the carbon cycle, and the water cycle impact global warming and interaction between the atmosphere and the hydrosphere?

09 August 2024 3,291 2 View

Who of all of you will help TPEOM to re-originate the Earths atmosphere to it original 5 atmospheric elements/gases?

Global ‘Weather’ has stopped, as ‘aqua thermionic instituted by the ‘Global thermo atmospherics has instituted global thermodynamics of 120º C + and thus all waters are, or have boiled into a...

06 August 2024 8,716 0 View

How can I separate graphene from amorphous carbon of similar particle sizes?

The starting material is a finely ground powder. Some particles contain more graphene than others.

30 July 2024 3,978 2 View

Question about combustion Kinetics ?

I am currently working on modeling FCC catalyst regeneration and have come across a point of uncertainty that I hope you can assist me with. In my previous models, I have utilized lumped kinetics...

30 July 2024 6,137 0 View

What are the perfect mathematical model for a solar-powered ship implementation?

A computational study of heat flux on cylindrical surfaces using CNT hybrid nanofluids

28 July 2024 4,985 1 View

Why semicircle of nyquist plot is not complete?

While I am doing HER, I noticed that nyquist plots of Electrochemical Impedance Spectroscopy (EIS) is not complete. Will it affect for the Linear Sweep Voltametry (LSV) data? However, I can found...

26 July 2024 7,542 4 View

What is the principle/mechanism behind aging of carbon (graphite) containing refractory mix for isostatically pressed refractories?

The resin bonded carbon containing refractories are aged before use. How time of aging is determined? And mechanism behind aging.

23 July 2024 3,205 0 View

What binder would be the best choice to modify glassy carbon electrode with a 2D Material like Graphene or MXene?

I am trying to drop cast 2D Materials on Glassy Carbon Electrode for Cyclic voltametry and EIS purpose. What would be best binders to use?

23 July 2024 5,776 2 View

Hugh J Byrne

https://www.sigmaaldrich.com/technical-documents/articles/materials-science/nanointegris.html

Shams B. Ali

http://thomas-swan.co.uk/wp-content/uploads/2017/09/Elicarb-SW-Products-Advanced-Materials-LR.pdf

Ali Nematollahzadeh

Ja, es ist wirklich Sing-wall! Kein Zweifel.

GO für die Firma Sigma-Aldrich.