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Space Environment - Science topic

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We know that in space the compact size and light weight are key design features. The compact size can sometimes be constraint for high antenna performance. Deployable Origami antennas can be a good candidate to solve this problem. But is it robust enough to work in space environment.
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You might read my paper:
Origami based ultraviolet C device for low cost portable disinfection- using a parametric approach to design
Thanks.
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I am working with three aquatic plant species occuring in island-like habitat (small water bodies) scattered in an intensive agricultural landscape. My main question is to see if there are genetic differences in their populations and how much this is explained by space and by environment. I intend to use RDA analysis (tipical for metacomunnities) but instead of a sp based matrix, use my microsatellites dataset. However I am not quite sure how exaclty I can do this. Please I would appreciate some help, comments or further ideas. Thank you!
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Hi,
We also used a RDA analysis to assess how isolation-by-distance and population structure explained genetic data within our dataset; for this you should use three matrices. One with GPS data, one with population assignments, and one with msat data for which you need to calculate within-individual allele frequencies. See our paper https://academic.oup.com/jhered/article-abstract/109/4/426/4870022?redirectedFrom=fulltext
Good luck!
Best, Thijs
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people who are interested in science, can help on what do they think on the topic including those who wanna know what's happening around them
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Xoliswa,
You may have heard of the Drake Equation - an attempt to estimate the number of intelligent civilsations in the Milky Way galaxy, using 7 variables/parameters. The important thing to be aware of is that as you move from left to right along the equation, after the 3rd variable, the variables cease to be based on observed evidence and are therefore at present assigned values that are either conjecture or risky extrapolations from a sample of 1 (life on our Earth, and our intelligent selves on Earth).
So we cannot say with any certainty whatsoever that there is life, let alone intelligent life resembling humanity, on any other planet. There's just no evidence either way.
But we must acknowledge that much progress has been made in firming up the numbers in the first three terms of the equation. When Frank Drake devised it, the number of stars which might host a planet in their "habitable zone" was much less precisely known than it is now. In fact, no extrasolar planet had even been discovered then - not a single one until the 1990s. Not until the 2000s was there sufficient evidence of the frequency of planetary systems to project how many stars overall hosted planets. Not until the 2010s were lower mass, "Earth-sized" planets detected. Future large ground-based telescopes with adaptive optics should be able to characterise the atmospheric composition of such planets, and search for evidence of biologically related gases. That starts to take us into the right hand side of the equation.
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For testing influences such as humidity it's more relevant in my opinion, to have similar factors, than a natural enviroment,. But when it comes to mind, that "real life" circumstances that shall be simulated, also might depend on daytimes, variating temperatures might take effect as well.
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Thanks for the answer! 
Maybe my question was formulated a bit bad. What I wanted to ask was, if the apparatus could be used to simulate a night fallof, though keeping up the relative temperature-scale which it should produce. 
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Also, we tried simulation software such as FLUKA which was tough to operate and then NIST XCOM had only photonic radiations. So, if any other easy to use space environment simulation software is present please inform... Thank you.
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If this is still an issue, I would be happy to help you out with a FLUKA-simulation. Please contact me for details.
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Root Reason behind the World Weather Change:
If we look around earth’s environment along with the space we find the world is surrounded by three main atmospheric layers and the function /usefulness of these layers are to act as filter to protect the earth from many hazardous rays of the sun and also from the other disaster elements of the space by the way to make the earth suitable for living beings. I would like to introduce here the main concern about the atmospheric layer is about its dual activities first one as the filter of the earth and the second one is the atmospheric layers act as the shed or boundary to keep the earth’s environmental condition suitable for living beings here. The layers also restrict the mixing of the earth environment with the more hazardous space environment. 
If we look to the components and the composition of the earth surface we find more than two third of the total earth’s area is occupied with liquid component mainly with water, that is also main component of living cells constituents. Among the existing total amount of liquid on the earth surface most amount are saline water in the oceans, seas and in the gulf. Rest water is sweet but having the same properties of polar nature in the sources of rivers, cannels and in the ponds. My main attention is on the fact of salinity of the water sources on the earth surface and their role on the total earth environment.
In the saline water, metal ion is the main constituent’s components that are forming ionic/polar bonded compounds with halogens. The situation is that, most of the existing liquids on the earth’s surroundings are in polar form which is in term in the form of partially ionic condition. If we deepened our concern the earth surface is accompanied with abundant of ionic (polar) components and how the situation was made stable on the earth surface that was suitable for living beings existence with suitable environmental climate conditions.
The fact of the gradually losing electrolytic balance can be pointed out: the use of the electrolytes by living beings over million/billion years through the total mass of the earth surface and it’s surrounding. Besides, the sweet water percent is also increasing for the last few decades by melting snow and freezing water from the storage of the end corner of the earth along many points of the earth due to the raise of the overall temperature of the earth surface.
 All living beings collect their required energy to lead their mode of life using the available sources related with the earth existing balancing system. By the way the earth is losing (directly or indirectly) the balancing properties (electrolytes) from the existing suitable conditions on the earth surface.  Inventions of various new scientific equipment using the available electrolytic sources from the earth also resulted a great loss of the total electrolytic balancing system. Moreover the radioactivity of many elements both natural and artificially causes the serious damage to the total electrolytic balancing systems across the earth environment. Even the productions of various new living organs inside the living being using the earth sources causing the deficiency in the total available balancing systems across the earth. These are all spontaneous process and are increasing more rapidly day to day with the modernization which is much alarming to the loosing of total electrolytic balancing system across the earth. From these above facts it may mentioned that the world existence is under threat due to the electrolytic imbalances in and around the earth environment.
Suggestions for recovery:
 Answer may come by the way that there are must an exact electrostatic balance between the aqueous electrolytes (sea water) and the existing all other components (ionic, nonionic, covalent, and neutral) inside the atmospheric boundaries along with the components of the mines within the total mass of the globe. There may have other facts like attraction/interaction force i.e., Van deer Waal’s attraction forces, dipole- dipole interactions (associate the molecular level) between the abundant polar solvent (water) around the earth’s surface and between other components within the range of the earth. If we come to the main concern of the global climate change relating the change of the quality and quantity of the sea (saline) water which is effecting on the total electrolytic purity/quantity, causing the electrolytic imbalance inside the atmospheric boundaries around the total mass area of the earth. The fact of lost electrolytic balance is the main reasons for the unusual behavior of the climate around the globe. This reason also may responsible for unique happenings in the space near to the earth.
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Mr. Abu Mohammad Azmal, Your idea is very fine but this is not man made, we can not go against nature. Salinity of sea water is natural, we can desaline a small portion of sea water for our use. For our comfort, we are burning fuel to generate electricity, this process produces carbon dioxide a green house gas, this prevents atmospheric heat radiation to outer space that warms our environment. Generation of electricity also utilizes only maximum 45% of heat in thermal power generation to convert into electric power, balance 55% is left out and added to global warming. Human activities for industrialization, mining, deforestation etc are main causes of climate change on earth's surface.
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To experiment path planning algorithms can we get configuration spaces of environment like maze so that we can give that as input to our program and get the results. 
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can please provide some reference
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For space agency missions they tend to be custom-made, making nailing down the cost a little difficult. However, Busek has CubeSat to SmallSat-scale engines, which can give you a good idea.
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Literature uses 1112 ESH for a year on GSO with north-south faced satellite. This can be found on:
"Degradation of thermal control materials under a simulated radiative space environment" by A.K. Sharma and N. Sridhara
"Evaluation of Thermal Control Coatings Degradation in Simulated Geo-Space Environment" by J. Marco and S. Remaury
and other publications. How does this value derives in detail? My approximations  show results around 886 ESH.
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Thank you very much!
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I want a simulator to calculate the delay, energy efficiency etc for wireless sensor Networks (WSN) in space environment (space based missions).
And another thing is that, can we simulate effect of space weather on nodes if we send them in space? 
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Space applications have characteristics different from Traditional WSN applications, the primary being the long distance between the motes and the high mote's velocity.
This tool can be used to simulate WSN space applications.
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I am a PhD student.
I am looking for a space environment simulator to expose the material samples and analysis.
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The other difficulty in studying atomic oxygen is that it is highly reactive and tends to damage the test chamber.  Not saying it can't be done, but it is not a trivial task to maintain chamber integrity in an atomic oxygen environment.
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How we can use WSN in space and which type of architecture is required to integrate the WSN in space for satellite surveillance ?
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Existing WSN nodes built for operation on Earth could be not suitable for space applications: http://www.jhuapl.edu/techdigest/TD/td2801/Maurer.pdf
It is possible that design of some CubeSat's (for example, GATOSS http://space.skyrocket.de/doc_sdat/gomx-1.htm) could be interesting as examples of space WSN nodes: https://www.researchgate.net/publication/262944047_ADS-B_in_Space_Decoder_Implementation_and_First_Results_from_the_GATOSS_Mission
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Plants in zero gravity
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To Bernardo Duarte:
You can tray to use clinostat. This tools can be used to negate gravitational pull on plant growth.