Results 61 to 70 of about 41,022 (244)
ProcessesFacing challenges of low efficiency and severe wear in deep hard formations with conventional drilling bits, this study investigates the synergistic rock-breaking technology combining a pulsed CO2 laser with mechanical bits. The background highlights the need for novel methods to enhance drilling speed in high-strength, abrasive strata where ...
Lei Tao +3 more
openaire +1 more source
Dynamics stabilization and transport coherency in a rocking ratchet for cold atoms [PDF]
, 2010 Cold atoms in optical lattices have emerged as an ideal system to investigate the ratchet effect, as demonstrated by several recent experiments. In this work we analyze theoretically two aspects of ac driven transport in cold atoms ratchets.
Kolton, A. B., Renzoni, F.
core +2 more sources
Advanced Science, EarlyView.An innovative molecular spatial‐positioning shimming strategy is developed to optimize the electrical properties of poly(vinylidene fluoride) (PVDF). By intercalating polyethylene wax (PE wax) short‐chain molecules into PVDF's free volume, the film achieves a significantly enhanced energy density of 32.67 J cm−3.
Ziyue Wang, Jiyang Xie, Wanbiao Hu
wiley +1 more source
Spartan Daily, April 24, 1987 [PDF]
, 1987 Volume 88, Issue 56https://scholarworks.sjsu.edu/spartandaily/7581/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
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Kondo insulator SmB6 under strain: surface dominated conduction near room temperature [PDF]
, 2017 SmB6 is a strongly correlated mixed-valence Kondo insulator with a newly discovered surface state, proposed to be of non-trivial topological origin. However, the surface state dominates electrical conduction only below T* ~ 4 K limiting its scientific ...
Dzero, M. +4 more
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Advanced Science, EarlyView.Few‐layer La2CoO4 nanosheets are produced via phonon‐resonance‐assisted cleavage of the rock‐salt layers in the Ruddlesden‐Popper structure under the 20 kHz resonance condition, enabling controlled exfoliation into ultrathin sheets. The nanosheets show improved gas‐sensing capability, delivering an 86.67% response to 1 ppm NO2 at room temperature ...
Yi Liang +13 more
wiley +1 more source
Non‐Equilibrium Synthesis Methods to Create Metastable and High‐Entropy Nanomaterials
Advanced Science, EarlyView.ABSTRACT Stabilizing multiple elements within a single phase enables the creation of advanced materials with exceptional properties arising from their complex composition. However, under equilibrium conditions, the Hume–Rothery rules impose strict limitations on solid‐state miscibility, restricting combinations of elements with mismatched crystal ...
Shuo Liu +3 more
wiley +1 more source
Discussion of the design of satellite-laser measurement stations in the eastern Mediterranean under the geological aspect. Contribution to the earthquake prediction research by the Wegener Group and to NASA's Crustal Dynamics Project [PDF]
Research conducted for determining the location of stations for measuring crustal dynamics and predicting earthquakes is discussed. Procedural aspects, the extraregional kinematic tendencies, and regional tectonic deformation mechanisms are ...
Paluska, A., Pavoni, N.
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Spartan Daily, May 8, 1990 [PDF]
, 1990 Volume 94, Issue 64https://scholarworks.sjsu.edu/spartandaily/7994/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
core +1 more source
Strain‐Assembled Crystalline SrRuO3 Microtube and Emergent Curvilinear Magnetism
Advanced Science, EarlyView.The interfacial‐strain assembly based on planar nanomembranes presents a promising approach for constructing novel magnetic microstructures. By employing the perpendicular magnetic anisotropic SrRuO3 freestanding nanomembrane as a model system, we exploit the interfacial strain effect within the crystalline SrTiO3/SrRuO3 bilayer, and successfully ...
Lei Gao +12 more
wiley +1 more source