Anatoly A Khripov

12 Questions 32 Answers 0 Followers

Questions related from Anatoly A Khripov

Is it possible to make prism deviation angle minimum (as a function of incidence angle) more abrupt?

Dear Sirs, The setup for the dispersion measurement is as follows. Hg lamp, collimator, goniometer with triangular prism. We measure the light dispersion using the prism. To do so we determine...

26 October 2019 2,713 8 View

Bending cycles number of flexible teflon pcb when electrical parameters change ?

Dear Sirs, I can not find the info about the number of bending cycles or similar parameters for electrical parameters change for flexible printed circuit board (pcb) with teflon/ptfe substrate....

23 February 2019 9,484 9 View

Can a man be considered as a set of huge number of remembered automatic actions learned from society?

A human is an ability to eat, to walk, to memorize, to think, to rightly express your moods. Then he goes to work as electrician, musician, physicicist, physician, etc. All these human activity...

24 August 2017 5,064 11 View

Did anybody attempt to do self-made RF receiver coil that are connected with the original MRI manufacturer`s coil via inductive coupling?

Self-made RF receiver coil is hard to connect and match to clinical MR scanner due to many reasons. Can I do the workaround? I use manufacturer`s coil,e.g. small disc-shape receiver coil and...

06 August 2017 2,313 6 View

Are nonmagnetic heaters used in clinical MRI for contrast improvement?

MR image brightness very depends on relaxation time value. Relaxation time hugely depends on temperature. So the way to improve the contrast is to heat up or down a human tissue investigated in MR...

02 August 2017 9,235 6 View

Is there similarity between genetic evolution (evolution before 1800) and human civilization progress. Scientists make faster what nature wants?

What moves us? It seems to me the key question I ask. Billion years created very complex biological creatures in air, land, in sea. This evolution has some laws and rules. Is this "ancient...

17 May 2017 9,304 4 View

What is the current state of determination of pore radius of porous media from PFG NMR restricted diffusion experiment?

Dear Sirs, I know the works by Mitra (surface to volume ratio in porous media) on diffusion coefficient dependence on short times. See P. P. Mitra, P. N. Sen, L. M. Schwartz, Short-time behavior...

19 September 2016 7,414 5 View

Are there self-replication simplest mechanical models (to understand living creatures)?

Dear Sirs, I did not find this material on the internet. There are only mechanical models of some aspects of self-replication. Full mechanical model is absent. Of course it is enourmous problem...

01 January 1970 9,613 4 View

What is a meaning (practical and theoretical) of 1st Newton law? Can we partially check the law?

Dear Sirs, The 1st law in Newton`s principia are now understood as two statements: the determination of inertial frame reference (if F=0 then a=0 and if F is not equal 0 then there is some body...

01 January 1970 600 33 View

The 2nd Newton law test for small accelerations and BIG masses

Dear Sirs, I would like to find out more precisely whether the 2nd Newton law is valid or not in wide range of masses, accelerations, forces. Particulary I have a question whether the inertial...

01 January 1970 6,223 13 View

How do we find/construct closed system needed to use Newtons laws?

Dear Sirs, 1, 2, 3 laws of Newtons need closed system (net force is zero). How do we practically realize, create such closed system? One example. Let us look at a body motion. One can say If...

01 January 1970 1,089 2 View

Mass measurement from the 3rd Newton law (different forces)

Could you give references on mass measurement from the 3rd law (with different forces: gravitational, elastic, etc)? E.g. old articles by Saint-Venant.

01 January 1970 1,078 2 View