dealing with conjunctions in a machine translation environment
... After the excution of the arc ((PUSH NP) (NPSTART)), RIGHT-PHRASE has been found. If it has an PP modifier, a register NMODS-CONJ will be set to the value of the modifier. Now the NPs in the **NP-STACK will be POPed one by one to be compared with the right phrase semantically. The NP whose formula h ...
... After the excution of the arc ((PUSH NP) (NPSTART)), RIGHT-PHRASE has been found. If it has an PP modifier, a register NMODS-CONJ will be set to the value of the modifier. Now the NPs in the **NP-STACK will be POPed one by one to be compared with the right phrase semantically. The NP whose formula h ...
2017-OPTI-518-HW-7
... 4) Is it true that if in a plane symmetric system made out of reflective surfaces is corrected for field tilt, then there is no linear astigmatism? 5) A yolo telescope has a concave primary mirror and a concave secondary mirror. Both are tilted as to avoid obscuration in the beam of light. Spherical ...
... 4) Is it true that if in a plane symmetric system made out of reflective surfaces is corrected for field tilt, then there is no linear astigmatism? 5) A yolo telescope has a concave primary mirror and a concave secondary mirror. Both are tilted as to avoid obscuration in the beam of light. Spherical ...
Topic 5 Assignment - Science 9 Portfolio
... Topic 5 - What Channel Is This? Radio Telescopes Radio waves are received from stars, galaxies, nebulae, the Sun and even some planets. With the development of radio telescopes, astronomers gain an advantage over optical telescopes, because they are not affected by weather, clouds, atmosphere or pol ...
... Topic 5 - What Channel Is This? Radio Telescopes Radio waves are received from stars, galaxies, nebulae, the Sun and even some planets. With the development of radio telescopes, astronomers gain an advantage over optical telescopes, because they are not affected by weather, clouds, atmosphere or pol ...
Astro-Tech`s AT6RC offers great imaging on a budget
... designed the AT6RC specifically for astrophotography using digital singlelens reflex (DSLR) cameras and other imagers with large chips. An observer can use it visually, but the real strength behind the RC design is its flat photographic field. This eliminates the “star bloat” that plagues photos tak ...
... designed the AT6RC specifically for astrophotography using digital singlelens reflex (DSLR) cameras and other imagers with large chips. An observer can use it visually, but the real strength behind the RC design is its flat photographic field. This eliminates the “star bloat” that plagues photos tak ...
Polaris Series Manual
... motion is caused by Earth’s rotation). During any 24 hour period, stars make one complete revolution about the pole, circling with the pole at the center. By lining up the telescope’s polar axis with the North Celestial Pole (or for observers located in Earth’s Southern Hemisphere with the South Cel ...
... motion is caused by Earth’s rotation). During any 24 hour period, stars make one complete revolution about the pole, circling with the pole at the center. By lining up the telescope’s polar axis with the North Celestial Pole (or for observers located in Earth’s Southern Hemisphere with the South Cel ...
09 03 07 Logic Outline - The National Academies of Sciences
... enough to accomplish significant work, yet is small enough to become affordable if the design were standardized. All too frequently small institutions insist upon designing their own telescopes almost from scratch to fulfill their individual tastes. It should be evident that that course is hopelessl ...
... enough to accomplish significant work, yet is small enough to become affordable if the design were standardized. All too frequently small institutions insist upon designing their own telescopes almost from scratch to fulfill their individual tastes. It should be evident that that course is hopelessl ...
What Makes a Failure? Designing a New National Telescope, 1975
... Jesse Greenstein, who became director of the California Institute of Technology’s astronomy program in 1948, optical astronomy in the 1970s was living on the “borrowed glory” of new exploration into radio, X-ray, and infrared spectral regions. As astronomers mined these new wavelengths, they argued ...
... Jesse Greenstein, who became director of the California Institute of Technology’s astronomy program in 1948, optical astronomy in the 1970s was living on the “borrowed glory” of new exploration into radio, X-ray, and infrared spectral regions. As astronomers mined these new wavelengths, they argued ...
PDF
... more planets). However, the larger occulter has several disadvantages as well: the additional mass limits the mission to at most 5 years (assuming an Atlas V launch vehicle), at which point it runs out of fuel. The petals are significantly longer, greatly complicating packaging (no design currently ...
... more planets). However, the larger occulter has several disadvantages as well: the additional mass limits the mission to at most 5 years (assuming an Atlas V launch vehicle), at which point it runs out of fuel. The petals are significantly longer, greatly complicating packaging (no design currently ...
Overview of Technologies for Direct Optical Imaging of Exoplanets
... created at the telescope aperture. Since no starlight enters, the need for mid-spatial frequency, highcontrast wavefront control is eliminated. For the same reason, the telescope can be on-axis or segmented with conventional diffraction-limited quality. The coronagraph instrument complexity is remov ...
... created at the telescope aperture. Since no starlight enters, the need for mid-spatial frequency, highcontrast wavefront control is eliminated. For the same reason, the telescope can be on-axis or segmented with conventional diffraction-limited quality. The coronagraph instrument complexity is remov ...
Astronomical Techniques Course
... 18.) For a telescope of 50 cm the limiting magnitude (one can see thru the telescope) is 15. To see stars as faint as 26th magnitude, what sort of telescope aperture one should have? ...
... 18.) For a telescope of 50 cm the limiting magnitude (one can see thru the telescope) is 15. To see stars as faint as 26th magnitude, what sort of telescope aperture one should have? ...
outline4339
... It is smaller in size by M times. Its position is d/M from ocular lens A. Image brightness Telescopes reduce brightness if Ramsden Disk is smaller than the observer’s pupil Telescopes only enhance brightness of point sources (tars) ...
... It is smaller in size by M times. Its position is d/M from ocular lens A. Image brightness Telescopes reduce brightness if Ramsden Disk is smaller than the observer’s pupil Telescopes only enhance brightness of point sources (tars) ...
See the press release - European Astronomical Society
... 2000 discovery of the first transiting exoplanet and the demonstration of the RossiterMcLaughlin effect by this planet with ELODIE. The rest is history, and the exponential growth of exoplanet science – with new theory and observations from the ground and space – continues with no end in sight. To r ...
... 2000 discovery of the first transiting exoplanet and the demonstration of the RossiterMcLaughlin effect by this planet with ELODIE. The rest is history, and the exponential growth of exoplanet science – with new theory and observations from the ground and space – continues with no end in sight. To r ...
bonvicini_pdf_0709
... through normalization with VIS light • The expected signal in VIS light is of the order of 10-4 of the rate and can be safely ignored • Runs are minimally selected (continuous beams for at least 600 seconds) with chi square and dark noise (cleaning) cuts later to take care of noisy ones • Much preci ...
... through normalization with VIS light • The expected signal in VIS light is of the order of 10-4 of the rate and can be safely ignored • Runs are minimally selected (continuous beams for at least 600 seconds) with chi square and dark noise (cleaning) cuts later to take care of noisy ones • Much preci ...
High energy cosmic gamma rays detectors
... within a short time window, to reduce random triggers from the night sky background. Following a trigger, signals are digitised and read out, resulting in a dead-time ranging from a few 10µs to a few 10 ms, depending on the design of the data acquisition system. In a system of telescopes, such as H. ...
... within a short time window, to reduce random triggers from the night sky background. Following a trigger, signals are digitised and read out, resulting in a dead-time ranging from a few 10µs to a few 10 ms, depending on the design of the data acquisition system. In a system of telescopes, such as H. ...
Jan 2017 Newsletter here
... can argue against these new rules when safety and security are quoted to you. It does make one wonder where it is all headed though. As we flew into the NR CTR (Napier Control Zone) I explained to Pete that giving the controller the POB (persons on board) was required in the contact so that they kne ...
... can argue against these new rules when safety and security are quoted to you. It does make one wonder where it is all headed though. As we flew into the NR CTR (Napier Control Zone) I explained to Pete that giving the controller the POB (persons on board) was required in the contact so that they kne ...
Side events - actris.net
... The visitor will admire, in their context, instruments which have been used to determine Athens exact time, to draw the map of Greece, to observe the wonders of the sky, to assist in weather forecasting and last but not least, to monitor and evaluate continuous seismic activity. The geoastrophysical ...
... The visitor will admire, in their context, instruments which have been used to determine Athens exact time, to draw the map of Greece, to observe the wonders of the sky, to assist in weather forecasting and last but not least, to monitor and evaluate continuous seismic activity. The geoastrophysical ...
PH507lecnote07_mcp5
... Current state of the art detectors are based in Antarctica and use strings of photomultipliers buried in the deep, transparent Antarctic ice. These detect the blue Cerenkov radiation emitted when neutrinos interact within the ice in the polar ice cap. IceCube ( http://icecube.wisc.edu) is currently ...
... Current state of the art detectors are based in Antarctica and use strings of photomultipliers buried in the deep, transparent Antarctic ice. These detect the blue Cerenkov radiation emitted when neutrinos interact within the ice in the polar ice cap. IceCube ( http://icecube.wisc.edu) is currently ...
UHH-A-450-2010-1
... This means the eye receives 59000 photons per second from the 0 magnitude star. A 6 mag star receives a factor of 251 less Photons, i.e. 235 photons The eye also receives 1711 competing photons From every square degree of the sky. Assume light from 0.1 square degrees actually interferes or competes ...
... This means the eye receives 59000 photons per second from the 0 magnitude star. A 6 mag star receives a factor of 251 less Photons, i.e. 235 photons The eye also receives 1711 competing photons From every square degree of the sky. Assume light from 0.1 square degrees actually interferes or competes ...
Glass Mirrors by cold slumping to cover 100 m2 of the MAGIC II
... Ground based Gamma Astronomy with ACTs is concerned with gamma photons that typically interact within the first radiation length of the atmosphere with atoms and generate electromagnetic showers. The showers extend over many kilometers in length and few tens to hundreds of meters in width and have ...
... Ground based Gamma Astronomy with ACTs is concerned with gamma photons that typically interact within the first radiation length of the atmosphere with atoms and generate electromagnetic showers. The showers extend over many kilometers in length and few tens to hundreds of meters in width and have ...
Pre-flight integration and characterization of the SPIDER balloon
... The past twenty years have seen the field of cosmology expand at a rapid pace, from the first hints of anisotropies in the Cosmic Microwave Background (CMB) detected by COBE,1 to precision tests of the Standard Cosmological Model by the latest generation of CMB experiments2–8 and complementary datas ...
... The past twenty years have seen the field of cosmology expand at a rapid pace, from the first hints of anisotropies in the Cosmic Microwave Background (CMB) detected by COBE,1 to precision tests of the Standard Cosmological Model by the latest generation of CMB experiments2–8 and complementary datas ...
