Anyone using Brookhaven BIC90 for zeta potential measurements. What is the polymer of the Organic Solvent Electrode?

I need to measure zeta potential of dispersions in organic solvent NMP DMF. I can't seem to find the material of the electrode, what polymer and it is compatible with the solvents.

02 January 2018 8,876 2 View

Why time goes only forward?

To me is because of the Entropy Increase during irreversible processes

03 April 2017 1,435 2 View

Explain the meaning of Entropy?

To me is a measure of Chaos

01 January 1970 182 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

RIA. How to measure?

When you use RIA, with a control the unknown sample with antibodies, you bare in mind the binding sites of the antibodies. However you still need to measure labelled antigen (radioactive) and not...

28 February 2021 2,133 3 View

Is there a deep reason for using the squared modulus of the wave function as the probability density of the existence of the particle?

I think we were all surprised at the first time we got to know quantum mechanics that the squared modulus of the wave function is the probability density of the existence of the particle? The role...

28 February 2021 6,282 9 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

How to get rid of somebody pretending to be the author of a publication?

One of the publication I co-authored has the author's name in abbreviation. Then, somebody whose nothing to do with that paper acquired it as her work. To whom in this RG shall I ask for a hand,...

27 February 2021 4,206 4 View

What is the exact mechanism of the antimicrobial effect of local anesthetics?

The antimicrobial effect of local anesthetics has been known for more than 50 years, but it still seems to have an unclear mechanism of action. which bacteria? which concentration? etc etc. ....

27 February 2021 4,450 2 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 View

Any interests in participating to an experiment in space?

Hello, The UN Office of Outer Space Affairs has a program called access to space for all that enables institutions to have hands on expertise related to access to space. There are three elements...

22 February 2021 7,980 3 View

How do I add a udf to Ansys fluent and does it need to be compiled before hand ?

I have a Define_CG_Motion udf written in c where do I add it to my Ansys fluent project and does it need to be compiled before that?

21 February 2021 9,347 3 View

Could the "incoming radiation (net radiation)" values be negative?

Could the "incoming solar radiation" values be negative? What is the difference between "global solar radiation" and "incoming solar radiation"? Which one might be measured negative values?

21 February 2021 7,726 9 View