736 resources related to Venus
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The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted full papers will be peer reviewed. Accepted high quality papers will be presented in oral and poster sessions,will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE.
2021 IEEE Photovoltaic Specialists Conference (PVSC)
Photovoltaic materials, devices, systems and related science and technology
The International Conference on Image Processing (ICIP), sponsored by the IEEE SignalProcessing Society, is the premier forum for the presentation of technological advances andresearch results in the fields of theoretical, experimental, and applied image and videoprocessing. ICIP 2020, the 27th in the series that has been held annually since 1994, bringstogether leading engineers and scientists in image and video processing from around the world.
OCEANS 2020 - SINGAPORE
An OCEANS conference is a major forum for scientists, engineers, and end-users throughout the world to present and discuss the latest research results, ideas, developments, and applications in all areas of oceanic science and engineering. Each conference has a specific theme chosen by the conference technical program committee. All papers presented at the conference are subsequently archived in the IEEE Xplore online database. The OCEANS conference comprises a scientific program with oral and poster presentations, and a state of the art exhibition in the field of ocean engineering and marine technology. In addition, each conference can have tutorials, workshops, panel discussions, technical tours, awards ceremonies, receptions, and other professional and social activities.
To promote awareness, understanding, advancement and application of ocean engineering and marine technology. This includes all aspects of science, engineering, and technology that address research, development, and operations pertaining to all bodies of water. This includes the creation of new capabilities and technologies from concept design through prototypes, testing, and operational systems to sense, explore, understand, develop, use, and responsibly manage natural resources.
The IEEE Aerospace and Electronic Systems Magazine publishes articles concerned with the various aspects of systems for space, air, ocean, or ground environments.
Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.
IEEE Antennas and Wireless Propagation Letters (AWP Letters) will be devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation.
Video A/D and D/A, display technology, image analysis and processing, video signal characterization and representation, video compression techniques and signal processing, multidimensional filters and transforms, analog video signal processing, neural networks for video applications, nonlinear video signal processing, video storage and retrieval, computer vision, packet video, high-speed real-time circuits, VLSI architecture and implementation for video technology, multiprocessor systems--hardware and software-- ...
Computer, the flagship publication of the IEEE Computer Society, publishes peer-reviewed technical content that covers all aspects of computer science, computer engineering, technology, and applications. Computer is a resource that practitioners, researchers, and managers can rely on to provide timely information about current research developments, trends, best practices, and changes in the profession.
1991 IEEE International Solid-State Circuits Conference. Digest of Technical Papers, 1991
2008 42nd Asilomar Conference on Signals, Systems and Computers, 2008
IEEE Spectrum, 1990
Significant developments during 1989 are reviewed. In space science, the Magellan spacecraft to Venus and the Galileo to Jupiter were launched, the Cosmic Background Explorer was launched into a 900 km orbit around the Earth's poles to see if the background radiation conforms to the Big Bang theory of the Universe's origin, manned space programs met with mixed success, the ...
1971 Antennas and Propagation Society International Symposium, 1971
IEEE Transactions on Nuclear Science, 1989
New readout electronics for the Venus end-cap liquid argon calorimeter was developed and has been operating for over a year at TRISTAN. The entire system was designed in such a way that the gain of each readout channel could be calibrated to better than 1%. The system consists of 3840 channels of readout electronics. It uses hybrid charge-sensitive amplifiers located ...
Significant developments during 1989 are reviewed. In space science, the Magellan spacecraft to Venus and the Galileo to Jupiter were launched, the Cosmic Background Explorer was launched into a 900 km orbit around the Earth's poles to see if the background radiation conforms to the Big Bang theory of the Universe's origin, manned space programs met with mixed success, the Space Shuttle redesign was completed, and competition for the Space Shuttle materialized. Military aerospace programs, meanwhile, face cuts as a result of the weakening of the Soviet threat, due to political events in eastern Europe and potential arms accords. On the other hand, radar for strategic and tactical surveillance has gained in importance.<<ETX>>
New readout electronics for the Venus end-cap liquid argon calorimeter was developed and has been operating for over a year at TRISTAN. The entire system was designed in such a way that the gain of each readout channel could be calibrated to better than 1%. The system consists of 3840 channels of readout electronics. It uses hybrid charge-sensitive amplifiers located in the 7.5-kG magnetic field and TKO-bus-based electronics which consists of CR-(RC)/sup 4/ filters, sample-and-hold circuits and 14-bit ADCs (analog digital converters). The energy resolution sigma /sub E//E for an electromagnetic shower has been found to be 3.5% at 28 GeV without any channel-by-channel gain calibration. The resolution was also determined to be sigma E/E=1.4%+11.3%/ square root E(GeV) from a large sample of 28-GeV Bhabha events and a small sample of e/sup +/e/sup -/ to e/sup +/e/sup -/ gamma events.<<ETX>>
Radio interferometry measurements have been made of the temperature variation over Venus. The results imply that the temperature has no significant poleward variation. A limit of 12°K can be placed on the surface temperature difference between poles and equator. A small phase-dependent asymmetry was measured, corresponding to an 18.4 ± 9.2°K maximum brightness difference between the equatorial limbs. This maximum difference occurs near inferior conjunction. The data also indicate that the disk of Venus is limb brightened. The extent of the brightening can be fitted if Venus' atmosphere is composed of 95% CO2, with no water, and has an extensive isothermal layer at the surface.
A study of the thermal conditions in the lower atmosphere of Venus has been made based on the measurements obtained by the space probes Venera 4, Venera 5, and Venera 6 [Avduevsky et al., 1969a, b; Pravda, 1969]. Following the results reported earlier [Avduevsky et al., 1968], we constructed models of the radiative and convective heat transfer. Calculations of the outgoing radiative fluxes were made for selected bands at wave numbers ranging from 500 to 7700 cm−1; to allow for the angular distribution of the radiation field, different assumptions for the percentage of water vapor and the optical properties of the clouds were adopted. This plane-stratified model depends on the assumption that the atmosphere is transparent to the short-wave end of the solar radiation spectrum. The available values of CO2and H2O absorption coefficients versus temperature have been used. The results of these calculations lead us to conclude that if the atmosphere consists of CO2and does not contain water vapor, the upward radiative heat transfer from the surface considerably exceeds the radiative flux falling on the upper boundary of the clouds.
In this paper, we consider the tracking control problem of a class of SISO nonlinear systems transformable into uncertain nonlinear systems in output- feedback form using output feedback control. The unknown output functions are approximated by fuzzy logic systems. The unmeasured states are estimated by K-filters. Based on these filters, observer backstepping method is used to design the controller. Nonlinear damping terms are used to counteract the destabilizing effect of the parameter estimation errors and observation estimation errors. The overall closed-loop system can be guaranteed all the signals involved semi-globally uniformly bounded and the tracking errors are proved to converge to a small residual set around the origin.
A position determination technique for balloons floating in the Venusian atmosphere is described. Measurements are all made using a single station of the NASA Deep Space Network. One coordinate of the fix is derived from a ranging measurement, and the other coordinate is derived from observation on earth of the polarization of a signal radiated from a linearly polarized antenna on the balloon, aligned to vertical by balloon local gravity.
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