Changing a World . What did the students learn from all this? ... The students found this unsatisfactory -- some of them would not be able to fit another astronomy class into their schedules, but they wanted to know about our planetary neighbors, and this project gave them the opportunity to find out without spending valuable class time on the subject. ... The students also learned to learn for themselves, perhaps one of the most important milestones during formal education. ...

Next: A Plea to Up: Some Problems of Practical Previous: Problems of Fourier . I would like to spend the rest of my time showing an example of the kind of dilemma one can get into when doing restorations. In this particular case we were dealing with an FOC ultraviolet image of the center of M31, and a PC V -band image of the same region, scaled, rotated, and aligned. We wanted to take the quotient of the two images, to look for color effects. ... Image A has low , while B has high . ...

... Assured of a reliable method of solving the normal equations, we now consider the equations of condition. The observed magnitude m of a star at M air masses with true instrumental magnitude is modelled as ([ 10 ], [ 28 ]) . ... The effective extinction coefficient depends on the effective spectral gradient [ 29 ] of the star, for which we use some color index, affected by half the atmospheric reddening ([ 26 ], [ 10 ]): . ... Thus, for the B band of UBV, we use the (U-V) color. ...

Subject, Object and Problems of Astrophysics. Practical and Theoretical Astrophysics. ... Visual Telescope; Problems Which Are Solved with the Its Help. ... Resolution of Telescopes. ... Effectiveness of Telescope in Respect of Resolution. ... Optical Power of Telescopes for Star-like and Extensive Objects. Boundary Magnitude. Reasons of Light Dissipation in Telescopes. ... Spectral Instruments in Astrophysics. ... Basic Photometrical Ideas, Magnitudes and Their Measurement. ...

An Enterprise Search Engine in 15 Minutes? Arkadi Kosmynin, Jessica Chapman It is not dis use global enterprise knowledge puted that search engines are extremely useful tools. After all, who does not web search engines, such as Google, these days? ... In systematic ,,blind tests, we found that Archs performance on intranets is comparable to Googles performance on the global web ­ something that, as far we know, other intranet search engines have yet to achieve. ...

Problem Set 2 - Cosmology­A3002 ­Due on or before November 7th. Can be sent via internal mail (Brian Schmidt, RSAA) use H0=70 km/s/Mpc, M=0.27, =0.73, w=-1 for all problems. ... Finish off your Monte Carlo simulation by selecting objects at random redshifts from 0<z<0.1, assuming that they have a mean absolute magnitude of M=-19.5 with a dispersion 0.2 magnitudes. ... Problem 2.1 (2 pt): In class we described the scale at which material can collapse in the Universe as the Jeans' length. ...

... Bakhshiyan . ... MV- and E-optimal design of experiments: theory and simplex algorithms . ... A mathematical analogy between a L-and MV-optimal experiments design and an ideal linear correction of system parameters is established, Optimality conditions are derived on the basis of this analogy and effective algorithms for solving these problems are designed. ... The E-optimal problem is reduced to the generalized linear programming problem with M+1 by constraints, where M=m (m+1) /2. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... A most promising problem is to investigate the interaction of two VHF powerful radiowave beams in the ionosphere, whose difference frequency is equal to the plasma frequency in some ionospheric area (that is, the difference frequency is taken in the range 1-8 MHz). ... Two-frequency interaction effects are based on radiowave non-linear mixing, which is rather complicated when describing and modelling the experiment. ...

... Just to learn how to generate a system call, I created a simple system call that basically sets and resets the value of a global parameter "PREFETCH". SYSTEM CALL code ********************************** int PREFETCH = 0; /* this is a global variable */ . ... To execute the sys_prefetch system call, I wrote a prefetch.c file with the following code. ************************code to call sys_prefetch***************** #include <linux/unistd.h> _syscall2 (int, prefetch, int, mode, int, nr_hints) . ...

... Then we went on to explain more in detail how to build an interaction matrix in MCAO. ... Complete lab experiments are under way at: - UVic - Durham - Lund They all want to demonstrate the feasability of MCAO, with DMs, WFSs and phase screens. ... Miska has done an experiment in the lab with SLM phase screens (liquid crystal). ... Parallelization could be desirable for ELT simulations - Collaborations possible on realization of phase screens for experiments / AO systems: - Palomar (?) ...

In this talk we will present a series of results and open problems emerging from the study of infinite global fields. We will give a survey of the asymptotic properties of the Brauer-Siegel and Euler-Kronecker invariants in the classical situation of number fields and function fields as well as in certain higher dimensional cases. ...

Is the ozone layer recovering ? ... Global Regulation Global Regulation · · · · 1985: Vienna Convention 1987: Montreal Protocol Several amendments and adjustments Quantity for (chemical) ozone depletion of ODS: EESC (Equivalent Effective qu ect Stratospheric Chlorine): Weighting over release and ozone depletion of individual ODS EESC for mid-latitudes http//:www.wmo.ch/web/arep/reports/ozone_2002/q&as.pdf, Seite Q.29 1980 1990 2000 2010 2020 2030 2040 2050 2060 2070 2080 2090 2100 3. ...

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... The main research task of the LRS was an investigation of interstellar medium of our Galaxy using its line emission in radio domain with the help of the gratest RATAN-600 Radio Telescope. ... The complex investigation of the Interstellar Clouds structure on the different scales and with the different radio lines for understanding of structure, dynamics and evolution of interstar gas and its interaction with other galactic constituents and the conditions for star formation. ...

... R.A. = 00h55m04s.86, Decl. = -37 41'43".7 . ... Variable star in NGC 1511 . ... Variable star near Pegasus 2001bn IAUC 8624 BV anon 2001bh 7622 K star ugc11635 2001dh 7482 M star ic5374 1999db 7227 QSO anon 1999dc 7227 AGN anon 1999cx 7210 AGN anon 1999cu 7210 AGN anon 1999bs 7141 cat var ugc11093 1998di 6982 dwarf nova anon 1993U 5818 QSO anon 1993V 5818 QSO anon 1992W 5517 M star mcg 8-23-96 1992X 5517 M star mcg 6-32-24 1991ap 5327 QSO anon 1989Z 5162 var ngc4013 1985J 4059 CV ugc6274 ? ...

... Dr. Ravil Nazirov is the head of the workshop, and Andrew Ananjev is the secretary of the workshop. ... The workshop is used to be held in the last decade of the month, preferably on Tuesdays. ... The next session will take place October 29, 1996 . ... There is "CONPAS" mailing list which you can join to discuss issues of problem solving and to be automatically notified of important dates and decisions with respect to the coming sessions. ... Secretary of the Workshop: Andrew Ananjev . ...

... The Second International Astronomy Olympiad . ... Problems to solve, 8-10 Form Text of these problems is available in Russian too. ... Two stars have the same absolute magnitude. ... The orbital period of Mars is 687 days. ... See problem 2. for 8-10 Form. ... Problem to solve, 9-12 Form Text of the problem is available in Russian too. ... Problem is about Doppler-effect, to find velosities of two stars using their spectra and spectrum of our Sun, to estimate speed of the Earth moving around the Sun...

Higher Criticism Statistic: Theory and Applications in Cosmology and Astronomy Jiashun Jin Department of Statistics Purdue University October 2, 2005 Abstract Higher Criticism is a recent statistic proposed by Donoho and Jin [1] where it has been shown to be effective at resolving a very subtle testing problem: test whether n normal means are all zero versus the alternative that a small fraction is non-zero. Higher Criticism is also useful for non-Gaussian detection. ... 2004). ...

A problem, that can arise when moving from Fortran 77 to Fortran 90, is dependent on a usual deviation from the standard, and has to do especially with user programs. ... With many Fortran 77 implementations we wrote PROGRAM TEST REAL X WRITE(*,10) 10 FORMAT('Give X = ',$) READ(*,*) X WRITE(*,*) X END In Fortran 90 we use "non-advancing I/O" instead. ... In some old Fortran dialects the statement TYPE was used to write on a typewriter terminal and PRINT was used to write on the line printer. ...

The efficiency of interaction of radiation with a particle and hence its optical properties depend on the particle chemical composition, size, shape, structure, etc. ... Particle size expressed in units of the wavelength of incident radiation, together with chemical composition, most strongly affects the optical properties of a scatterer. ... There are many methods to solve the light-scattering problem for a homogeneous spheroid (our survey of the light-scattering methods see here ). ...