نتایج جستجو برای: noble gasses

تعداد نتایج: 10362  

2017
Zbigniew Hubicki Monika Wawrzkiewicz Grzegorz Wójcik Dorota Kołodyńska Anna Wołowicz

Ion exchange has been widely applied in technology of chemical separation of noble met‐ al ions. This is associated with dissemination of methods using various ion exchange res‐ ins which are indispensable in many fields of chemical industry. Due to small amounts of noble elements in nature and constant impoverishment of their natural raw materials, of particular importance are physicochemical ...

2005
Chris M. Hall Maria Clara Castro Kyger C. Lohmann Lin Ma

[1] Noble gas data from the Glacial Drift, the shallowest aquifer in southern Michigan confirm findings by Ma et al. (2004) that modern noble gas temperatures (NGTs) are systematically below the current mean annual air temperature (MAAT) which, in turn, is similar to the ground temperature of these recharge waters. By tracking noble gas concentrations as well as stable isotope ratios through an...

2003
H. Busemann H. Baur R. Wieler

Introduction: In a companion abstract [1], we report evidence for tiny amounts of most likely primordial noble gases with solar-like elemental and isotopic composition admixed to Q-type primordial noble gases in an E chondrite. Here, we discuss possible implications of this finding for terrestrial planet formation. The genetic relation of the noble gases in planetary bodies to those in the Sun,...

2007
Nitash P. Balsara

Course Description Covers classical thermodynamics and statistical mechanics. Fundamental laws of thermodynamics, thermodynamics potentials and Legendre transforms, equations of state, chemical equilibrium, statistical mechanics, relationship between entropy and probabilities, classical gasses, liquids, and solids, pair correlation functions, Ising model, renormalization group theory, Brownian ...

Journal: :Nanoscale 2012
Zhen Liu Selcuk Poyraz Yang Liu Xinyu Zhang

Metal displacement reactions between conducting polymers-"synthetic metals"-and noble metals (Pt, Au and Ag) have been demonstrated using a seeding polymerization technique, to produce a synthetic metal nanofiber network decorated with noble metal nanoparticles, in one-step.

2009
Hanna Tanskanen Zofia Mielke

Noble gases are mostly known as inert monatomic gases due to their limited reactivity with other elements. However, the first predictions of noble-gas compounds were suggested by Kossel in 1916, by von Antropoff in 1924, and by Pauling in 1930. It took many decades until the first noble-gas compound, XePtF6, was synthesized by Neil Bartlett in 1962. This was followed by gradual development of t...

2012
Patrick Sauer Clemens Glombitza Jens Kallmeyer

High-pressure is a key feature of deep subsurface environments. High partial pressure of dissolved gasses plays an important role in microbial metabolism, because thermodynamic feasibility of many reactions depends on the concentration of reactants. For gases, this is controlled by their partial pressure, which can exceed 1 MPa at in situ conditions. Therefore, high hydrostatic pressure alone i...

Journal: :Journal of magnetic resonance 2001
L Zhao A K Venkatesh M S Albert L P Panych

Some non-Fourier encoding methods such as wavelet and direct encoding use spatially localized bases. The spatial localization feature of these methods enables optimized encoding for improved spatial and temporal resolution during dynamically adaptive MR imaging. These spatially localized bases, however, have inherently reduced image signal-to-noise ratio compared with Fourier or Hadamad encodin...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید