Xem 1-20 trên 26 kết quả Solar physics
  • Exciting new observational and theoretical advances lead today's solar physicists to challenge many of the predictions of even recent models. This volume summarizes the major questions at the forefront of solar physics theory and observations, and proposes priority recommendations to explore these questions.

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  • The concept of summerschools and workshops at the Kanzelho¨he Solar Observatory, Ka¨rnten, Austria, devoted to up-to-date topics in solar physics has been proven to be extremely successful, and thus in August/September 2003 the third combined summerschool and workshop was held there. This book contains the proceedings of the Summerschool and Workshop “Solar Magnetic Phenomena” held from 25 August to 5 September 2003 at the Solar Observatory Kanzelho¨he, which belongs to the Institute for Geophysics, Astrophysics and Meteorology of the University of Graz, Austria.

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  • From the interior of the Sun, to the upper atmosphere and near-space environment of Earth, and outward to a region far beyond Pluto where the Sun’s influence wanes, advances during the past decade in space physics and solar physics—the disciplines NASA refers to as heliophysics—have yielded spectacular insights into the phenomena that affect our home in space. This report, from the National Research Council’s (NRC’s) Committee for a Decadal Strategy in Solar and Space Physics, is the second NRC decadal survey in heliophysics.

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  • This book consists of a selection of original papers of the leading scientists in the fields of Space and Planetary Physics, Solar and Space Plasma Physics with important contributions to the theory, modeling and experimental techniques of the solar wind exploration.

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  • The Sun to the Earth—and Beyond: A Decadal Research Strategy in Solar and Space Physics is the product of an 18-month effort that began in December 2000, when the National Research Council (NRC) approved a study to assess the current status and future directions of U.S. ground- and space-based programs in solar and space physics research. The NRC’s Space Studies Board and its Committee on Solar and Space Physics organized the study, which was carried out by five ad hoc study panels and the 15-member Solar and Space Physics Survey Committee, chaired by Louis J.

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  • In this book we provide a comprehensive introduction into the basic physics of phenomena in the solar corona. Solar physics has evolved over three distinctly different phases using progressively more sophisticated observing tools. The first phase of naked-eye observations that dates back over several thousands of years has been mainly concerned with observations and reports of solar eclipses and the role of the Sun in celestial mechanics.

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  • (BQ) Ebook Physical science: Solar Power presents what you already know, energy for life, inside the sun, collecting sunlight, electricity from sunlight, solar power stations, traveling without fuel, solar power in space, endless energy.

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  • The Sun is the primary source of energy at Earth, and the Sun’s output determines the conditions in interplanetary space at Earth and throughout the solar system. Earth’s magnetic field and associated electrical current systems are continuously reacting to changing conditions in the solar wind that are driven by processes occurring at the Sun. The characteristics of Earth’s ionosphere and neutral thermosphere are influenced both by local processes and by coupling of the ionosphere and thermosphere to the overlying regions of the geospace1 environment....

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  • A look on energy, renewable energies, energy storage and synthetic fuels, hybrid architecture, fuel cells, hydrogen as a vector of energy of the future.The Earth resources are quite limited in quantity Many challenges to mankind in 21st century: development, health, water, food, demography, education, energy.In physics, energy (Ancient Greek: ἐνέργεια energeia "activity, operation"[1]) is a quantity that is often understood as the ability a physical system has to produce changes on another physical system.

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  • The present edition has been updated in a number of renewable energy technology areas (Chapter 4 and 5), where progress have been made over the recent years. New solar simulation studies have been added to Chapter 6, and market considerations have been included in the overview in Chapter 1, and in discussing industry liberalisation in Chapter 7. The remarks on advanced subjects made in the preface to the 2nd edition are still valid. A new growth area is fuel cells for stationary and mobile uses of hydrogen and other fuels.

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  • Special and general relativity are the theories describing the physics of space and time. Space and time are explored with clocks and electromagnetic signals. Therefore, special and general relativity are related to precise clocks and the thorough understanding of signal propagation. The ever-increasing accuracy of clocks together with novel methods for precision time transfer and clock synchronization are pivotal for the new generation of experiments probing the validity of Einstein’s theories from subatomic distances to cosmic scales....

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  • This report originated in 1999 as a result of discussions between the Committee on Solar and Space Physics (CSSP) and officials within NASA’s Office of Space Science Sun- Earth Connections program. As noted in the statement of task (Appendix A), the objective of the study was to provide a scientific assessment and strategy for the study of magnetized plasmas in the solar system. By emphasizing the connections between locally occurring (solar system) structures and processes and their astrophysical counterparts, the study would contribute to a unified view of cosmic plasma behavior.

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  • Space research is one of the most evocative and challenging fields of human endeavour. In the half-century that has elapsed since the beginning of the space age, we have been exposed to wonders beyond the imagination of even the most visionary of science fiction writers. We have peered deep into the Universe and studied physics that we can never duplicate on the Earth. We have begun to understand our own Sun, and the flow of energy outward through the Solar System that is fundamental to our existence.

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  • This section discusses the review of monthly reports, equipment and supply inventories, and segregation of financial administrative duties. In reviewing reports, the reviewer shall sign a departmental reviewer's certification log (which should include the account numbers, transaction month, reviewer's signature, and the date received) for the DaFIS transactions and the departmental reviewer's certification section printed on the last page of payroll reports.

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  • The magnetosphere is an open system that interacts with the solar wind. In this system, solar wind energy continuously permeates different regions of the magnetosphere through electromagnetic processes, which we can well describe in terms of current systems. In fact, our ability to use various methods to study magnetospheric current systems has recently prompted significant progress in our understanding of the phenomenon.

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  • The first historical test on the theory has been the deflection of light grazing the solar surface (Eddington 1919): the compatibility of the theory with this first experiment together with its ability to explain the magnitude of the perihelion advance of Mercury contributed strongly to boost acceptance and worldwide knowledge.

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  • In 2003, the National Research Council (NRC) published the first decadal strategy for solar and space physics: The Sun to the Earth—and Beyond: A Decadal Research Strategy in Solar and Space Physics.1 That report included a recommended suite of NASA missions that were ordered by priority, presented in an appropriate sequence, and selected to fit within the expected resource profile for the next decade.

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  • The Observatory carries out front-line astronomical research in three key areas of astrophysics, namely: Solar-System Science, Solar Physics, and Stellar and Galactic Astrophysics. Solar-System research en- compasses the dynamical structure, evolution and origin of objects in the inner and outer solar system and comparative planetology and meteor physics.

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  • Photovoltaic engineering is a multidisciplinary speciality deeply rooted in physics for solar cell theory and technology, and heavily relying on electrical and electpolrlli;c engineering for system design and analysis. The conception, design and analysis of photovoltaic systems are important tasks oh requiring the help of computers to perform fast and accurate computations or simuhfim. Today’s engineers and professionals working in the field and also students of dSa& technical disciplines know how to use computers and are familiar with r~nning .rpeckaliz& software.

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  • This book includes solar energy, wind energy, hybrid systems, biofuels, energy management and efficiency, optimization of renewable energy systems and much more. Subsequently, the book presents the physical and technical principles of promising ways of utilizing renewable energies. The authors provide the important data and parameter sets for the major possibilities of renewable energies utilization which allow an economic and environmental assessment.

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