The Determination of the Location of Contact Electrification-Induced Discharge Events
... though there are neither plausible electron donors nor plausible acceptors in insulating organic solids. In any event, if free electrons were generated (as we believe they are during discharge events), they would attach themselves to molecules and form ions. Putterman et al. proposed that X-rays gen ...
... though there are neither plausible electron donors nor plausible acceptors in insulating organic solids. In any event, if free electrons were generated (as we believe they are during discharge events), they would attach themselves to molecules and form ions. Putterman et al. proposed that X-rays gen ...
Physics of the Interstellar and Intergalactic Medium
... 1.1 The total mass of neutral gas in the Galaxy is ∼ 4×109 M . Assume that it is uniformly distributed in a disk of radius Rdisk = 15 kpc and thickness H = 200 pc, and that it is a mixture of H and He with He/H=0.1 (by number). Assume ionized hydrogen to be negligible in this problem. [Note: even t ...
... 1.1 The total mass of neutral gas in the Galaxy is ∼ 4×109 M . Assume that it is uniformly distributed in a disk of radius Rdisk = 15 kpc and thickness H = 200 pc, and that it is a mixture of H and He with He/H=0.1 (by number). Assume ionized hydrogen to be negligible in this problem. [Note: even t ...
chapter5 - Homework Market
... • Yellow-hot is hotter than red-hot but not as hot as white-hot. • Different parts of the sun’s surface also glow slightly different colors depending on their temperatures. ...
... • Yellow-hot is hotter than red-hot but not as hot as white-hot. • Different parts of the sun’s surface also glow slightly different colors depending on their temperatures. ...
Thermodynamic constraints on effective energy and mass transfer
... and AE is advected energy. Over annual time scales and for a given location AE and G approach zero, and in general, A is only a fraction of Rn and typically ignored in most soil and hydrologic applications. Note that advected energy and soil heat flux may perform important physical work on subsurfac ...
... and AE is advected energy. Over annual time scales and for a given location AE and G approach zero, and in general, A is only a fraction of Rn and typically ignored in most soil and hydrologic applications. Note that advected energy and soil heat flux may perform important physical work on subsurfac ...
Spiral galaxies - Ira-Inaf
... The halo luminosity in the radio range correlates with those in Hα and Xrays (Tüllmann et al. 2006), although the detailed halo shapes vary strongly between the different spectral ranges. These results suggest that star formation in the disk is the energy source for halo formation and the halo size ...
... The halo luminosity in the radio range correlates with those in Hα and Xrays (Tüllmann et al. 2006), although the detailed halo shapes vary strongly between the different spectral ranges. These results suggest that star formation in the disk is the energy source for halo formation and the halo size ...
Reprint
... The origin of carbon lies in nucleosynthesis in stars. There are two main contributors to carbon, supernovae (12 C) and evolved stars (12 C and 13 C), including red giants, supergiants, and asymptotic giant branch (AGB) stars. Stellar yields from such objects result in an average galactic C/O ratio ...
... The origin of carbon lies in nucleosynthesis in stars. There are two main contributors to carbon, supernovae (12 C) and evolved stars (12 C and 13 C), including red giants, supergiants, and asymptotic giant branch (AGB) stars. Stellar yields from such objects result in an average galactic C/O ratio ...
Gas disks to gas giants: Simulating the birth of planetary systems
... 10−3 < α < 10−2 , using the common parameterization (21) ν ≡ αcs H, with cs the gas sound speed and H the disk scale height. We used this range of parameters for our simulations; the resulting planetary systems (Fig. 2) were each the product of a complex interplay between planet-disk and planet-plan ...
... 10−3 < α < 10−2 , using the common parameterization (21) ν ≡ αcs H, with cs the gas sound speed and H the disk scale height. We used this range of parameters for our simulations; the resulting planetary systems (Fig. 2) were each the product of a complex interplay between planet-disk and planet-plan ...
Axions and White Dwarfs
... mass of the parent star (for convenience all white dwarfs are labeled with the mass of the main sequence progenitor), tcool is the cooling time down to luminosity l, τcool = dt/dMbol is the characteristic cooling time, Ms and Mi are the maximum and the minimum masses of the main sequence stars able ...
... mass of the parent star (for convenience all white dwarfs are labeled with the mass of the main sequence progenitor), tcool is the cooling time down to luminosity l, τcool = dt/dMbol is the characteristic cooling time, Ms and Mi are the maximum and the minimum masses of the main sequence stars able ...
Fe I/Fe II ionization equilibrium in cool stars: NLTE versus LTE
... The NLTE, SH = 0 and LTE abundances obtained from the lines of Fe I (denoted as [Fe/H]I ) and Fe II ([Fe/H]II ) are presented in Table 1. It is worth noting that, with the updated model atom of Fe I-II, the departures from LTE are substantially smaller compared to those from the previous studies. Fo ...
... The NLTE, SH = 0 and LTE abundances obtained from the lines of Fe I (denoted as [Fe/H]I ) and Fe II ([Fe/H]II ) are presented in Table 1. It is worth noting that, with the updated model atom of Fe I-II, the departures from LTE are substantially smaller compared to those from the previous studies. Fo ...
A/A* Model Answers Physics P1
... Explain the process of carbon capture and give an example of where carbon dioxide might be stored. (2 marks) The CO2 produced by burning fossil fuels is not released into the atmosphere. Instead, it is ‘captured’ and stored. Examples of storage sites include old oil and gas fields. List some of the ...
... Explain the process of carbon capture and give an example of where carbon dioxide might be stored. (2 marks) The CO2 produced by burning fossil fuels is not released into the atmosphere. Instead, it is ‘captured’ and stored. Examples of storage sites include old oil and gas fields. List some of the ...
Microplasma
Microplasmas are plasmas of small dimensions, ranging from tens to thousands of micrometers. They can be generated at a variety of temperatures and pressures, existing as either thermal or non-thermal plasmas. Non-thermal microplasmas that can maintain their state at standard temperatures and pressures are readily available and accessible to scientists as they can be easily sustained and manipulated under standard conditions. Therefore, they can be employed for commercial, industrial, and medical applications, giving rise to the evolving field of microplasmas.