Subjects -> ASTRONOMY (Total: 94 journals)
Showing 1 - 46 of 46 Journals sorted alphabetically
Advances in Astronomy     Open Access   (Followers: 49)
Annual Review of Astronomy and Astrophysics     Full-text available via subscription   (Followers: 50)
Annual Review of Earth and Planetary Sciences     Full-text available via subscription   (Followers: 67)
Artificial Satellites     Open Access   (Followers: 21)
Astrobiology     Hybrid Journal   (Followers: 11)
Astronomical & Astrophysical Transactions: The Journal of the Eurasian Astronomical Society     Hybrid Journal   (Followers: 7)
Astronomical Review     Open Access   (Followers: 5)
Astronomische Nachrichten     Hybrid Journal   (Followers: 4)
Astronomy & Geophysics     Hybrid Journal   (Followers: 49)
Astronomy and Astrophysics     Full-text available via subscription   (Followers: 67)
Astronomy and Computing     Hybrid Journal   (Followers: 6)
Astronomy Letters     Hybrid Journal   (Followers: 22)
Astronomy Reports     Hybrid Journal   (Followers: 22)
Astronomy Studies Development     Open Access   (Followers: 15)
Astroparticle Physics     Hybrid Journal   (Followers: 10)
Astrophysical Bulletin     Hybrid Journal   (Followers: 4)
Astrophysics     Hybrid Journal   (Followers: 35)
Astrophysics and Space Science     Hybrid Journal   (Followers: 49)
Astrophysics and Space Sciences Transactions (ASTRA)     Open Access   (Followers: 60)
Astropolitics: The International Journal of Space Politics & Policy     Hybrid Journal   (Followers: 13)
Celestial Mechanics and Dynamical Astronomy     Hybrid Journal   (Followers: 15)
Chinese Astronomy and Astrophysics     Full-text available via subscription   (Followers: 25)
Colloid Journal     Hybrid Journal   (Followers: 2)
Comptes Rendus : Physique     Open Access   (Followers: 2)
Computational Astrophysics and Cosmology     Open Access   (Followers: 6)
Earth and Planetary Science Letters     Hybrid Journal   (Followers: 143)
Earth, Moon, and Planets     Hybrid Journal   (Followers: 47)
Earth, Planets and Space     Open Access   (Followers: 77)
EAS Publications Series     Full-text available via subscription   (Followers: 8)
EPL Europhysics Letters     Partially Free   (Followers: 8)
Experimental Astronomy     Hybrid Journal   (Followers: 38)
Expert Opinion on Astronomy and Astrophysics     Open Access   (Followers: 8)
Extreme Life, Biospeology & Astrobiology - International Journal of the Bioflux Society     Full-text available via subscription   (Followers: 4)
Few-Body Systems     Hybrid Journal   (Followers: 1)
Foundations of Physics     Hybrid Journal   (Followers: 40)
Frontiers in Astronomy and Space Sciences     Open Access   (Followers: 15)
Galaxies     Open Access   (Followers: 6)
Globe, The     Full-text available via subscription   (Followers: 3)
Gravitation and Cosmology     Hybrid Journal   (Followers: 6)
Icarus     Hybrid Journal   (Followers: 71)
International Journal of Advanced Astronomy     Open Access   (Followers: 21)
International Journal of Astrobiology     Hybrid Journal   (Followers: 4)
International Journal of Astronomy     Open Access   (Followers: 22)
International Journal of Astronomy and Astrophysics     Open Access   (Followers: 36)
International Journal of Satellite Communications Policy and Management     Hybrid Journal   (Followers: 15)
International Letters of Chemistry, Physics and Astronomy     Open Access   (Followers: 8)
ISRN Astronomy and Astrophysics     Open Access   (Followers: 14)
Journal for the History of Astronomy     Full-text available via subscription   (Followers: 20)
Journal of Astrobiology & Outreach     Open Access   (Followers: 5)
Journal of Astronomical Instrumentation     Open Access   (Followers: 3)
Journal of Astrophysics     Open Access   (Followers: 33)
Journal of Astrophysics and Astronomy     Open Access   (Followers: 58)
Journal of Atmospheric and Solar-Terrestrial Physics     Hybrid Journal   (Followers: 133)
Journal of Geophysical Research : Planets     Full-text available via subscription   (Followers: 116)
Journal of Geophysical Research : Space Physics     Full-text available via subscription   (Followers: 136)
Journal of High Energy Astrophysics     Full-text available via subscription   (Followers: 25)
Kinematics and Physics of Celestial Bodies     Hybrid Journal   (Followers: 11)
KronoScope     Hybrid Journal   (Followers: 1)
Macalester Journal of Physics and Astronomy     Open Access   (Followers: 5)
Monthly Notices of the Royal Astronomical Society     Hybrid Journal   (Followers: 13)
Monthly Notices of the Royal Astronomical Society : Letters     Hybrid Journal   (Followers: 2)
Nature Astronomy     Hybrid Journal   (Followers: 14)
New Astronomy     Hybrid Journal   (Followers: 26)
New Astronomy Reviews     Full-text available via subscription   (Followers: 19)
Nonlinear Dynamics     Hybrid Journal   (Followers: 19)
NRIAG Journal of Astronomy and Geophysics     Open Access   (Followers: 4)
Physics of the Dark Universe     Open Access   (Followers: 4)
Planetary and Space Science     Hybrid Journal   (Followers: 106)
Planetary Science     Open Access   (Followers: 52)
Proceedings of the International Astronomical Union     Full-text available via subscription   (Followers: 2)
Publications of the Astronomical Society of Australia     Hybrid Journal   (Followers: 3)
Publications of the Astronomical Society of Japan     Hybrid Journal   (Followers: 4)
Research & Reviews : Journal of Space Science & Technology     Full-text available via subscription   (Followers: 20)
Research in Astronomy and Astrophysics     Full-text available via subscription   (Followers: 38)
Revista Mexicana de AstronomĂ­a y AstrofĂ­sica     Open Access   (Followers: 3)
Science China : Physics, Mechanics & Astronomy     Full-text available via subscription   (Followers: 4)
Science China Physics, Mechanics & Astronomy     Hybrid Journal   (Followers: 4)
Solar Physics     Hybrid Journal   (Followers: 29)
Solar System Research     Hybrid Journal   (Followers: 15)
Space Science International     Open Access   (Followers: 118)
Space Science Reviews     Hybrid Journal   (Followers: 92)
Space Weather     Full-text available via subscription   (Followers: 27)
Transport and Aerospace Engineering     Open Access   (Followers: 13)
Universe     Open Access   (Followers: 6)
Similar Journals
Journal Cover
Research & Reviews : Journal of Space Science & Technology
Number of Followers: 20  
 
  Full-text available via subscription Subscription journal
ISSN (Print) 2321-6506 - ISSN (Online) 2321-2837
Published by STM Journals Homepage  [66 journals]
  • Electrical Discharge Machining (EDM) ON Titanium alloy workpiece using
           graphite

    • Free pre-print version: Loading...

      Authors: Sumit Kumar
      Abstract: In modern industry demands of titanium alloy is increasing day by day. Because it has many several characteristics such as low thermal conductivity, low elastic modulus. Application of Titanium and its alloys now a day in different field such as aerospace industry sports car etc. Therefore it is replacing different metal such as aluminium in many applications .It has high corrosion resistance and high strength – to – weight ratio so these material are also called super alloy. By using conventional machining process titanium and its alloy are very difficult to machining. So Non – conventional machining process such as EDM is used to machine these type of hard material such as titanium alloy. Because EDM can provide better surface finish rate and machine complicated geometry and profile. So producing complex cavities in die EDM has been widely preferred. There are no mechanical vibrations and chatter produced in machining procedure.
      PubDate: 2022-04-27
      Issue No: Vol. 10, No. 3 (2022)
       
  • New Advanced Life Support System (LSS) for long-duration missions on the
           International Space Station (ISS) and Interplanetary Spacecraft

    • Free pre-print version: Loading...

      Authors: Michael Shoikhedbrod
      Abstract: Oxygen in the air and the water are vital for the smooth operation of the crews of the International Space Station and interplanetary spacecraft during long-term flights. Replenishing by the water, oxygen and micro algae biomass by delivering them to the International Space Station or to the interplanetary spacecraft is not economically viable. Therefore, the task arises of using and developing new systems that use the regeneration of oxygen, hydrogen, water from astronauts waste and the cultivation of rapidly multiplying microalgae on the International Space Station or interplanetary spacecraft itself. The use of biomass of microalgae solves the problem of utilization of carbon dioxide, formed during the life activity of astronauts, of replenishment of spacecraft atmosphere with oxygen, and of replenishment of nutrition of astronauts. The fundamental possibility of recovering life support for a person in a confined space has been experimentally confirmed in long-term ground tests. The author has developed a separator, tested during flight tests, for purification of fuel liquid or technical contaminated water from harmful solids or microbes in the tank with liquid fuel or technical contaminated water in order to maintain clean fuel liquid and maintain drinking water supplies, using the negative charged microdispersed hydrogen bubbles, formed during the process of electrolysis, and of action on them electrostatic force, aroused between electrodes, in conditions of microgravity. An oxygen and hydrogen generator has been developed that permits to economically and simply separately produce oxygen and hydrogen gases and use it on the International Space Station (ISS) or on an interplanetary spacecraft for long-term maintenance of the cabin atmosphere with oxygen and drinking water during a long flight, using the positive charged oxygen and negative charged hydrogen bubbles, formed in the process of electrolysis, and action on them electrostatic force, aroused between electrodes, in conditions of microgravity. A concentrator was also developed that produces a concentrate of rapidly reproducing microalgae in microgravity conditions for the utilization of carbon dioxide, emitted by astronauts, and of the production of oxygen and also of the addition of this concentrate as a high-calorie food supplement to the diet of the crew of the International Spacecraft Station or an interplanetary spacecraft in order to obtain a sufficient amount of oxygen, water and algae biomass concentrate for the performance of astronauts during a long space flight. Obtaining a concentrate of rapidly multiplying microalgae under microgravity conditions in a concentrator is carried out with the help of microdispersed negatively charged hydrogen bubbles, formed during electrolysis at the cathode, and an aqueous solution, saturated with them - catholyte, as well as the electrostatic force of attraction, arising between the electrodes. The article presents a new developed life support system (LLS) for an International Space Station (ISS) or an interplanetary spacecraft, which includes the previously developed ones: a separator for cleaning of fuel liquid and of obtaining drinking water by purifying fuel liquid and technical dirty water from solid harmful impurities or microbes, for restoring drinking water from the urine of astronauts in weightless conditions in sufficient quantities for the consumption of this water by astronauts during long-term space flights; a generator permitting to economically and simply separately produce oxygen, hydrogen and drinking water for replenishment of the cabin atmosphere by oxygen and drinking water of an International Space Station (ISS) or an interplanetary ship, and a concentrator connected to a space photo bioreactor that grows microalgae in weightlessness conditions, contributing to the utilization of carbon dioxide, released during the breathing of astronauts, and the production of oxygen to replenish of the oxygen reserves in the cabin atmosphere of International Space Station (ISS) or an interplanetary ship, permitting to obtain a concentrate of rapidly multiplying microalgae and the adding of this concentrate as a food additive to the crew's diet and replenishment of the space photo bioreactor with a part of the concentrate and purified nutrient solution in order to obtain enough biomass for a long flight.
      PubDate: 2022-04-27
      Issue No: Vol. 10, No. 3 (2022)
       
  • Relativity of Wavelength According to the Relative Velocity between the
           Observer and the Wave Source

    • Free pre-print version: Loading...

      Authors: Emad Y. Moawad
      Abstract: An observer on Earth can observe the path of the Moon and Earth around the Earth and the Sun, respectively. Both are elliptical orbits in which the Earth and the Sun are concentrated, respectively. But how do we accept both paths together, where one cannot imagine the Earth as stationary while the Moon revolves around it in one of them and at the same time the Earth itself is the one that revolves around the Sun in the other path! Two paths of the Moon and the Earth can be visualised together in the same frame, as the Moon revolves around the Earth, which in turn revolves around the Sun. So the Moon also revolves around the Sun in a wave path around the Earth. Accordingly, the path of the Moon that we observe in the form of an ellipse from the Earth is in the form of a wave motion whose axis is the Earth's path around the Sun when observed from the Sun. The two observed paths of the Moon’s movement coincide in their estimated periodic time of 27.3216 days, while differing in wavelengths for each. The speed of the Moon along the elliptical path is 1023 m /s, while in the wavy path is 2.97 x 104 m / s, which is the same as the Earth’s speed around the Sun as both of them revolve together around it. The ratio of their wavelengths has been shown to be equal to [1023/(2.97×104)]. Thus, the wavelength of the detected image is proportional to the relative velocity between the observer and the wave source (the Moon).
      PubDate: 2022-04-26
      Issue No: Vol. 10, No. 3 (2022)
       
 
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