The properties of atomic clouds toward 30 Doradus and LMC 4 suggest a higher cooling rate in these regions compared to other parts of the LMC, probably due to an enhanced pressure near the shock fronts of LMC 4 and 30 Doradus. The detected cool atomic gas toward the eastern steep \\HI\...
Nonetheless, covalent bonding relies heavily on the directional nature of atomic orbitals, imposing substantial constraints on the design of covalent compounds. For instance, it only takes 4% lattice constant mismatch to make the Si-Ge system strained and possibly metastable4,5. Moreover, owing to...
Lifting Gas Helium has the second-lowest atomic weight of any element. Only hydrogen has a lower atomic weight. As a lighter-than-air gas, helium has been used as a "lifting gas" for airships and balloons. Blimps, dirigibles, zeppelins, anti-aircraft balloons, weather balloons, and other...
hafnium (Hf), chemical element (atomic number 72), metal of Group 4 (IVb) of the periodic table. It is a ductile metal with a brilliant silvery lustre. The Dutch physicist Dirk Coster and the Hungarian Swedish chemist George Charles von Hevesy discovered (1923) hafnium in Norwegian and ...
When VN = 0, the virial equation reduces to the equation of state of an ideal gas, PV = NkB T. The alternative to the time-averaging procedure described by (2.2.2) is to average over a suitably constructed ensemble. A statistical-mechanical ensemble is an arbitrarily large collection of ...
(002) ZnO thin films, including low gas pressure [24] or control of the Ar:O2 ratio in sputtering [25], high substrate temperatures and an oxygen-rich environment in pulsed laser deposition (PLD) [26], plasma-enhanced chemical vapor deposition (PECVD) [27], and atomic layer deposition (...
Fig. 2: Visual summary of common LDMs. 0D The chemical structure (top), high-resolution transmission electron microscope (HRTEM) image (inset is corresponding selected area electron diffraction (SAED) pattern where applicable) (middle) and atomic force microscopy (AFM) scan (bottom) for carbon ...
We finally conclude that the spatial quality of an even harmonic can be as excellent as in standard generation. H igh harmonic generation in gas results from the strong non-linear polarization induced on a gas medium by focusing of a linearly polarized laser field to an intensity of about ...
Also, some reports based on the first-principles calculations have been performed on the adsorption of various gas molecules on the pristine monolayer MoS2 [29], [30], [31], [32]. However, a systematically research on the atomic structures, electronic properties and chemical reactivity of ...
and 2.44 MPa·m1/2for annealed.Obviously, the fracture toughness of annealed bulks was higher than that of as-grown bulks.Increase of the Young's modulus and the flexural strength at 77 K, compared to those at room temperature, was ascribed to the decrease of the inter-atomic distance by ...