SELECT SQL_CALC_FOUND_ROWS posting_id, rw1.node_name AS subject, rw2.node_name AS topic FROM posting, rewrite_sol_bm AS rw1, rewrite_sol_bm AS rw2 WHERE ota_id=105035 AND type=1 AND library_status=1 AND posting.subject_id=rw1.subject_id AND posting.topic_id=rw2.topic_id AND rw1.node_type=1 AND rw2.node_type=2 ORDER BY library_downloads DESC LIMIT 0, 20 Online TA Profiles - Homework Help from BrainMass
Online TA Profiles
Israel Kovner, PhD
OTA ID#: 105035

Education Experience: MSc, Physics, Gorkiy State, Gorkiy, Russia, 1972
PhD, Astrophysics, The Weizmann Institute, Rehovot, Israel, 1984
Focus of Study: NMR and composition analysis
Awards: · Haim Weizmann Postdoctoral Fellowship, Princeton, NJ, USA, 1984-1986
· Master of Science with distinction, Gorkiy, USSR, 1972
· High school graduation with distinction (gold medal) at the age of 14
· First prize at the all-Soviet-Union Physics Olympiad for high school students,
Moscow, USSR, 1967
Publications: A. Kassiola, I. Kovner, Invariants of simple gravitational lenses, Mon. Not. R. Astron. Soc., Vol. 272, No. 2, p. 363 - 368, 15 Jan 1995

A. Kassiola, I. Kovner, B. Fort, Y. Mellier, Conspicuous tangential alignment of faint blue and red objects in cluster 0024+1654, Astrophys. J., Lett., Vol. 429, No. 1, p. L9 - L12, 1 Jul 1994

A. Kassiola, I. Kovner, Elliptic mass distributions versus elliptic potentials in gravitational lenses, Astrophys. J., Vol. 417, No. 2, p. 450 - 473, 10 Nov 1993
Work Experience: 10 y academic research in Astrophysics: Weizmann Institute of Science, Israel; Princeton University, NJ, USA; Institute of Astronomy, Cambridge, UK; Observatoire Midi-Pyrenee, Toulouse, France

11 y in High Tech - Applied Math and Applied Physics, in Israel and USA
Skills & Achievements: Applied Physics:
NMR Composition Analysis, High precision Chemometry, High precision long sequence NMR simulations

Applied Math:
3D Graphics, Computational Geometry, Data Compression, Image Processing, Machine Vision, Medical Ultrasound and Radiology, Optimization, Pattern Discovery, Signal Processing, Statistical Analysis, other algorithms and numerical techniques

Programming Languages:
C/C++, MatLab, Visual Studio, MFC, STL, etc

Languages:
Fluent in English, Hebrew, and Russian

Teaching:
Graduate courses in Astrophysics, and in General Relativity; Mathematics and Physics for college and high school students

Astrophysics:
Gravitational Lenses, Cosmology, Extragalactic Astrophysics
Outside Interests: Coach potato
Postings Answered: 1513
Cumulative OTA Rating: 5/5  What is OTA Rating?
Top Solutions Downloads
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  1. Astronomy: Sun formation, planet detection, galaxy history - n. Evidence is strong that the formation of the Sun (and its family of planets) happened by the same processes as the formation of stars. Explain. o. How are planets detected around other stars? ...
  2. Modern Physics Questions - 1. A certain string on a piano is tuned to produce middle C (f = 261.63 Hz) by carefully adjusting the tension is the string. For a fixed wavelength, what is the frequency when this tension is doub ...
  3. Calculate the break-even product value of using Express Mail (overnight delivery) versus Parcel Post (three-day delivery) for sending a package from Peoria, Illinois to Memphis, Tennessee. The following table contains the appropriate costs. Assume that inventory carrying cost is 25 percent per year of the product value and that there are 365 days in a year. - Calculate the break-even product value of using Express Mail (overnight delivery) versus Parcel Post (three-day delivery) for sending a package from Peoria, Illinois to Memphis, Tennessee. The followi ...
  4. Top Down, Stepwise refinement - Using top-down, stepwise refinement, create an algorithm for making toast, frying eggs, baking a cake, or ordering pizza. How might algorithms be beneficial in your future profession?
  5. Physics questions on oscillations and waves - 1. A certain string on a piano is tuned to produce middle C (f = 261.63 Hz) by carefully adjusting the tension is the string. For a fixed wavelength, what is the frequency when this tension is doub ...
  6. How did Galileo's observations show that the Earth-center theory (Ptolemaic) was wrong? - How did Galileo's observations show that the Earth-center theory (Ptolemaic) was wrong?
  7. Speed of transfusion from suspended blood bag - A hospital patient receives a quick 500-cc blood transfusion through a needle with a length of 5.0 cm and an inner diameter of 1.0 mm. if the blood bag is suspended 0.85 m above the height where the b ...
  8. How the age of rocks can be determined by radioactivity internal structure of the Earth - a. Explain how the age of rocks can be determined by radioactivity. Give an example. b. How can scientists determine the internal structure of the Earth, if the depth of the deepest well is only a t ...
  9. How can planet retrograde motion be explained by the Earth center hypothesis? By the Sun-center hypothesis? - How can planet retrograde motion be explained by the Earth center hypothesis? By the Sun-center hypothesis?
  10. What knowledge do comets and asteroids provide to studies of the origin of the solar system? - What knowledge do comets and asteroids provide to studies of the origin of the solar system?
  11. modify the code that if anything other than a digit string surrounded by optional white space is typed the inpuit is considered to be in arror - char line [MAXLINE]; int error,; do { printf("Input a positive integer: "); fgets(line, MAXLINE,stdin); error=sscanf(line,"%d",&n) !=1II n<=0; if(error) printf("|nERROR:Do it again.n"); } whil ...
  12. How can planet retrograde motion be explained by the Earth-center hypothesis? By the Sun-center hypothesis? - How can planet retrograde motion be explained by the Earth-center hypothesis? By the Sun-center hypothesis?
  13. Which proposal is best? - Case 7-3 Credit Policy Review The president, vice president, and sales manager of Moorer Corporation were discussing the company's present credit policy. The sales manager suggested that potential ...
  14. Interest and the Time Value of Money - A bank loaned $15,000, some at an annual rate of 16% and some at an annual rate of 10%. If the income from these loans was $1800, how much was loaned at 10%?
  15. Milky Way - Compare the solar system with the Milky Way Galaxy. (They are very different, but the terms are often confused.) What are two similarities and two differences in their structure?
  16. Hypotenuse from Pythagorean Theorem - A right triangle is a triangle with one angle measuring 90°. In a right triangle, the sides are related by Pythagorean Theorem, , where c is the hypotenuse (the side opposite the 90° angle). Find t ...
  17. Universe - 12. The Universe according to the prevailing current body of evidence is likely to a. contract someday and implode on itself b. be an oscillator and right now it is simply in an expa ...
  18. Stochastic Process, Exponential Martingale, Brownian Motion - Hi, I've attached 2 questions in one file. Thanks. Question 1 hints: Hint 1: you have a process Y and a function, the first instinct should be to try Ito. Hint 2: what would the SDE of a martin ...
  19. Choose one equation of each type: linear, quadratic, polynomial, rational, exponential, and log. Plot each equation on the same graph. Discuss and compare the appearance of each graph. Describe the plot's shape, the effect of any constants, and behavior for very large or very small x or y. - Choose one equation of each type: linear, quadratic, polynomial, rational, exponential, and log. Plot each equation on the same graph. Discuss and compare the appearance of each graph. Describe the pl ...
  20. Black Hole - 7. The Sun Rotates around the Milky Way Galaxy at a speed of a. 250 Km / sec and it makes an orbit in 20 Million years b. 20 Km / sec and it completes an orbit in 220 Million years c. ...
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