758 resources related to Solar system
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2021 IEEE Photovoltaic Specialists Conference (PVSC)
Photovoltaic materials, devices, systems and related science and technology
Energy conversion and conditioning technologies, power electronics, adjustable speed drives and their applications, power electronics for smarter grid, energy efficiency,technologies for sustainable energy systems, converters and power supplies
APEC focuses on the practical and applied aspects of the power electronics business. Not just a power designer’s conference, APEC has something of interest for anyone involved in power electronics including:- Equipment OEMs that use power supplies and converters in their equipment- Designers of power supplies, dc-dc converters, motor drives, uninterruptable power supplies, inverters and any other power electronic circuits, equipments and systems- Manufacturers and suppliers of components and assemblies used in power electronics- Manufacturing, quality and test engineers involved with power electronics equipment- Marketing, sales and anyone involved in the business of power electronic- Compliance engineers testing and qualifying power electronics equipment or equipment that uses power electronics
The Annual IEEE PES General Meeting will bring together over 2900 attendees for technical sessions, administrative sessions, super sessions, poster sessions, student programs, awards ceremonies, committee meetings, tutorials and more
Bi-Annual IEEE PES T&D conference. Largest T&D conference in North America.
The IEEE Aerospace and Electronic Systems Magazine publishes articles concerned with the various aspects of systems for space, air, ocean, or ground environments.
Publishes original and significant contributions relating to the theory, design, performance and reliability of electron devices, including optoelectronics devices, nanoscale devices, solid-state devices, integrated electronic devices, energy sources, power devices, displays, sensors, electro-mechanical devices, quantum devices and electron tubes.
Research, development, design, application, construction, installation, and operation of electric power generating facilities (along with their conventional, nuclear, or renewable sources) for the safe, reliable, and economic generation of electrical energy for general industrial, commercial, public, and domestic consumption, and electromechanical energy conversion for the use of electrical energy
Theory and applications of industrial electronics and control instrumentation science and engineering, including microprocessor control systems, high-power controls, process control, programmable controllers, numerical and program control systems, flow meters, and identification systems.
Deep Space Communications, None
This chapter describes how the two Voyager spacecraft and the deep space network (DSN) ground systems receive and transmit data. It provides a reasonably complete single source from which to look up specifics of the Voyager radio communications. The chapter focuses on the Voyager Interstellar Mission (VIM), the current mission phase, which began in January 1990. The VIM consists of ...
IEEE Computer Graphics and Applications, 1997
IEEE Conference Record - Abstracts. PPPS-2001 Pulsed Power Plasma Science 2001. 28th IEEE International Conference on Plasma Science and 13th IEEE International Pulsed Power Conference (Cat. No.01CH37, 2001
Summary form only given. High-performance 5 to 10 kW class ion propulsion technology has been identified as a key requirement and priority for technology development to support the Exploration of the Solar System (ESS) theme of the Space Science Enterprise. Identified applications include Mars missions, Europa Lander, Saturn Ring Observer, Neptune Orbiter, Comet Nucleus Sample and Return, and Venus Surface ...
IEEE International Conference on Robotics and Automation, 2004. Proceedings. ICRA '04. 2004, 2004
Institute of Space and Astronautical Science (ISAS) in Japan has launched the engineering test spacecraft "HAYABUSA" on May 9, 2003 for the asteroid "ITOKAWA". HAYABUSA includes a very tiny rover named "MINERVA." MINERVA is the world-ever rover, which would move over an asteroid surface. The mission objectives of the rover are: (1) the establishment of the mobile system on the ...
2010 Asia-Pacific Power and Energy Engineering Conference, 2010
A solar and air-source heat pump combined heating system for experimental research is setup, the efficiency of the solar collectors and the COP of the air-source heat pump is tested by experiments. Hourly simulations during a whole year are conducted based on the performance data obtained from experiments, several conclusions are drawn: (1) The solar and air-source heat pump combined ...
Detecting an Exoplanet With a DSLR
Lunar Industrialization: The First Step to the Solar System
IEEE 125th Anniversary Media Event: Probabilistic Chips Slate
Ride with the Teams at the World Solar Challenge
Validating Cyber-Physical Energy Systems, Part 4: IECON 2018
Sustainable Energy Explored At Solar Splash
Young Engineering Innovators Emerge at Solar Splash
Validating Cyber-Physical Energy Systems, Part 2: IECON 2018
Validating Cyber-Physical Energy Systems, Part 1: IECON 2018
Ito: Behind the honors
Renewable Power for Refugee Camps
Validating Cyber-Physical Energy Systems, Part 3: IECON 2018
Energy Innovations: Solar Goes Small
GHTC 2012 - Robert Freling Keynote
Intelligent Systems for Deep Space Exploration: Solutions and Challenges - Roberto Furfaro
Power Electronics in PV-Systems: Status and Perspectives
Ready, Fire, Aim - Highlights of Hot Chips 20
The 6-Minute Memristor
This chapter describes how the two Voyager spacecraft and the deep space network (DSN) ground systems receive and transmit data. It provides a reasonably complete single source from which to look up specifics of the Voyager radio communications. The chapter focuses on the Voyager Interstellar Mission (VIM), the current mission phase, which began in January 1990. The VIM consists of three distinct phases, namely termination shock, heliosheath exploration, and interstellar exploration. The chapter describes telecom system capabilities that existed at launch. The four VGR telecom functions are carrier tracking or Doppler, command, telemetry, and ranging. When used for planning future capability, Voyager link predictions are based on a criterion of positive margin under the two conditions of Command at mean minus 3‐sigma and Telemetry at mean minus 2‐sigma. For a command pass, the DSN offsets the Voyager 2 uplink frequency to compensate for the predicted Doppler.
Summary form only given. High-performance 5 to 10 kW class ion propulsion technology has been identified as a key requirement and priority for technology development to support the Exploration of the Solar System (ESS) theme of the Space Science Enterprise. Identified applications include Mars missions, Europa Lander, Saturn Ring Observer, Neptune Orbiter, Comet Nucleus Sample and Return, and Venus Surface Sample and Return. To that end, there is an ongoing, effort at NASA Glenn Research Center (GRC) to extend ion thruster technology beyond the 30 cm, 2.3 kW engines developed under the NASA Solar Electric Propulsion Technology Applications Readiness (NSTAR) program. Two prototype (laboratory model) 40 cm, 5 kW ion thrusters were developed using two different discharge chamber geometries to evaluate magnetic field contours and discharge chamber performance. Differences from the nominal NSTAR-type ion thruster include an increase in discharge chamber diameter from 30 to 40 cm, the use of mild steel instead of non-ferrous Al or Ti for the anode, an increase in the number of rings of magnets forming the ring-cusp magnetic field, and, in the case of the purely conical chamber, a significant change in the overall geometry of the discharge chamber. Final magnetic field configurations including comparisons to numerical modeling and initial thruster performance data are presented. The impact of this data on the design of high-fidelity (engineering model) 40 cm, 10 kW thrusters currently being developed at NASA GRC is also discussed.
Institute of Space and Astronautical Science (ISAS) in Japan has launched the engineering test spacecraft "HAYABUSA" on May 9, 2003 for the asteroid "ITOKAWA". HAYABUSA includes a very tiny rover named "MINERVA." MINERVA is the world-ever rover, which would move over an asteroid surface. The mission objectives of the rover are: (1) the establishment of the mobile system on the micro-gravity environment of small planetary bodies, and (2) the demonstration of fully autonomous exploration. This paper describes the design of the rover, especially focused on the two major objectives of MINERVA mission: the mobile system and the autonomous capabilities.
A solar and air-source heat pump combined heating system for experimental research is setup, the efficiency of the solar collectors and the COP of the air-source heat pump is tested by experiments. Hourly simulations during a whole year are conducted based on the performance data obtained from experiments, several conclusions are drawn: (1) The solar and air-source heat pump combined heating system can save electricity up to 50-70% compared to solar system assisted by electrical resistance heater, when located in places with not very cold winter; (2)The solar and air-source heat pump combined systems is more sensitive to supply water temperature and its percentage of electricity saving is reducing with the rising supply water temperature compared to auxiliary heating by electrical resistance. (3) The life-cycle cost of the combined system is not very sensitive to solar fraction when solar fraction ranges from 30% to 70%, and it is lowest when the solar fraction is near 50%.
A major step forward has been made towards cost reduction of terrestrial PV. World-record multijunction III-V solar cells have been integrated into a commercial concentrator photovoltaic (CPV) system. A dense array of high- efficiency solar cells in the receiver of a high-intensity (~500X) concentrator system has been identified as a viable, cost-effective system. Concentrator ultra triple junction (CUTJ) cells have been developed for use in the Solar Systems CS500 solar electric power generator. The cell is designed for efficient conversion of the specific solar spectrum delivered to the system receiver while minimizing cell cost. Cells are optimized for maximum active area in a Solar Systems dense-array cell module. Solar Systems modules using CUTJ dense-array cells have demonstrated module efficiencies of over 35%. Field testing of CUTJ dense-array cells in a CS500 CPV dish unit at the Hermannsburg solar power plant in Australia was initiated in December 2005. A full multi-junction receiver in a CS500 dish has delivered over 30kW with an efficiency of almost 30%. Following qualification, these systems are slated for entry into the terrestrial market in 2006
Amorphous silicon (a-Si) alloy solar cells made near the onset of micro- crystallinity exhibit superior characteristics. The amorphous to microcrystalline transition depends critically on the hydrogen dilution used during the film growth and the cell thickness. Cell open-circuit voltage (V/sub oc/) was used to determine the transition threshold for various hydrogen dilutions. Devices made on the transition edge exhibit a significant reduction in V/sub oc/ and a dispersion of its values due to nonuniform microcrystallite inclusions in an amorphous matrix. The best cells are made in the amorphous region just below the threshold. Status of a-Si and a-SiGe alloy component cells suitable for use in high efficiency triple-junction devices is presented. Using near threshold conditions, a large-area (/spl sim/922cm/sup 2/) fully encapsulated triple-junction module with an initial aperture-area efficiency of 11.9% has been achieved and confirmed by NREL.
Summary form only given, as follows. In paper details an attempt to create a mathematical model and methodology for estimation of possibilities to use electric jet propulsion with smoothly controlled output parameters. There have been shown the feasibility of using controllable electric jet propulsion for space missions requiring smooth changing of the propulsion system output parameters along the flight trajectory.
In the Pulkovo observatory the observations of the Solar system objects and improvement of the processing methods are performing. EPOS (Ephemeris Program for Objects of the Solar system) is the effective math-soft application for study and ephemeris support of observations of such objects. There are the options in EPOS for calculation of the orbits of asteroids including NEAs and using the observations at the relatively short arc. Also we would like to present shortly our method of Apparent Motion Parameters (AMP) for determinations of orbits of artificial satellites and other objects from observations of short arc. The research program of the Orbital Stellar Stereoscopic Observatory (OSSO) is based on the stereoscopic method of observation for fundamental studies in the area of Celestial Mechanics, Asteroid and Comet Impact Hazard, Stellar Astronomy, Astrometry and Astrophysics with the magnitude of the target objects ranging from 8<sup>m</sup> to 25<sup>m</sup>. This project is designing for stellar-like objects observations, including the main types of the Solar system bodies.
We are building Argus, a 16-pixel square-packed focal plane array that will cover the 75-115.3 GHz frequency range on the Robert C. Byrd Green Bank Telescope (GBT). The primary research area for Argus is the study of star formation within our Galaxy and nearby galaxies. Argus will map key molecules that trace star formation, including carbon monoxide (CO) and hydrogen cyanide (HCN). An additional key science area is astrochemistry, which will be addressed by observing complex molecules in the interstellar medium, and the study of formation of solar systems, which will be addressed by identifying dense pre-stellar cores and by observing comets in our solar system. Argus has a highly scalable architecture and will be a technology path finder for larger arrays. The array is modular in construction, which will allow easy replacement of malfunctioning and poorly performing components.
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