Mostrando 5,921 - 5,940 Resultados de 10,994 Para Buscar '"rock ', tiempo de consulta: 0.15s Limitar resultados
  1. 5921
    “…All crystals adopt the same face-centered cubic rock salt structure, and the crystal growth direction is ⟨100⟩. …”
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  2. 5922
    “…[Image: see text] This paper explores displacement mechanisms of the residual oil film in microchannels by analyzing the following items after wetting hysteresis occurs: resistance on the residual oil film by the rock wall, the interfacial tension between displacement fluid and residual oil film, and horizontal stress acting on residual oil film by displacement fluids. …”
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  3. 5923
    por Hess, Thomas, Riede, Felix
    Publicado 2020
    “…The following study presents the first in‐depth investigation of the use of different rock types by Mesolithic hunter–fisher–gatherers at the site. …”
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  4. 5924
    “…The obtained nanoparticles are characterized in terms of their shape and optical properties, as well as their crystalline rock-salt structure, as confirmed by XRD and HRTEM analysis. …”
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  5. 5925
    “…This research explores the new perspectives in conservation and protection of two macroporous tuff stones, widely employed in the architectural heritage of Campania region, characterized by highly heterogeneous rock fabric and texture and a variable mineralogical composition that represent crucial factors responsible for their weak durability. …”
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  6. 5926
    por Biegańska, Jolanta
    Publicado 2021
    “…Lead(II) azide is an initiating explosive; even a small amount can trigger an explosion caused by simple external stimuli, such as sparks, flames, friction or pinpricks, and is able to initiate the explosive reaction of rock-crushing explosives. Due to the fact that this initiating explosive triggers further reactions, the effect of priming detonators depends on the properties of its material. …”
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  7. 5927
    “…This work describes the results of a test campaign aimed to measure the propagation of longitudinal, torsional, and flexural stress waves on a drill bit during percussive rock drilling. Although the stress wave propagation during percussive drilling has been extensively modeled and studied in the literature, its experimental characterization is poorly documented and generally limited to the detection of the longitudinal stress waves. …”
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  8. 5928
    “…This brief presents new U-Pb SHRIMP (Sensitive High-Resolution Ion Microprobe) geochronology data on zircons and titanites dated from the gold-rich Kilo Terrane in the eastern Central Kibalian Superterrane, northeastern DRC. Out of 40 rock samples (), only 36 samples produced zircons and titanites suitable for U-Pb SHRIMP dating (-). …”
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  9. 5929
    “…Biofilms are among the earliest traces imprinted by life in the rock record: we contend that prebiotic equivalents of these environments deserve future experimental investigation.…”
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  10. 5930
    “…The aim of this study was to evaluate the effect of austempering compared to quenching and low-temperature tempering on wear resistance of an as-cast medium carbon high-silicon steel intended for rock breaking. Austempering was done by isothermal holding at 270, 300 and 350 °C in molten salt baths, while quenching was done in water. …”
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  11. 5931
    “…In two experiments, we used the simple zero-sum game Rock, Paper and Scissors to study the common reinforcement-based rules of repeating choices after winning (win-stay) and shifting from previous choice options after losing (lose-shift). …”
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  12. 5932
    “…Also, in the ergodic Markov chain, the stationary probability distribution that describes the Markov chain’s stationary state is calculable analytically. Finally, the Rock, scissor, paper evolutionary game are evaluated as an example, and the results of the analytical method and simulations are compared. …”
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  13. 5933
    “…The third and main task covers simulating, using hydrocodes, and selected methods of fighting 100 m diameter rock material asteroids.…”
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  14. 5934
    Publicado 2020
    “…We developed a compartmental model to project COVID-19 healthcare demands that combined information regarding SARS-CoV-2 transmission dynamics from international reports with local COVID-19 hospital census data to support response efforts in three metropolitan statistical areas in Texas, USA: Austin-Round Rock, Houston-The Woodlands-Sugar Land, and Beaumont-Port Arthur. …”
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  15. 5935
    por Zong, Ruiwen, Gong, Yiming
    Publicado 2022
    “…Considering the preservation status and buried environment of the abnormal specimens, and analysis of trace elements and rare earth elements from whole-rock and brachiopod shells, we conclude that the appearance of malformed athyrids is likely related to epi/endoparasites, or less likely the slightly higher content of heavy metal in the sea.…”
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  16. 5936
    “…In the years 2012–2015, experiments on underground coal gasification were carried out in a coal mine, which caused, among other effects, damage to rock mass. Afterward, periodic increases in the concentration of potential alpha energy (PAEC) of radon decay products in the air were found, which could pose a hazard to miners. …”
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  17. 5937
    por Horiguchi, Toshihiro, Kodama, Keita
    Publicado 2022
    “…Finally, we present possible causal factors for strange or abnormal phenomena observed in intertidal biota near FDNPP, namely declines in population densities and number of species of invertebrates, delayed recovery from these declines, and continuous sexual maturation in the rock shell population.…”
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  18. 5938
    por Ponomarev, I., Polcar, T., Nicolini, P.
    Publicado 2022
    “…It significantly improves the state-of-the-art force fields, which tend to crystallize in the experimentally unknown rock-salt MoS structure. Therefore, our new force field is a good candidate for further development and inclusion of other practically relevant elements, such as O, C, N, and H, which can be used to study the formation and tribological or catalytical properties of molybdenum disulfide.…”
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  19. 5939
    por Yu, Xiuxin, Liu, Shuting, Pei, Hongxing
    Publicado 2022
    “…This anomaly usually means that the probe is pressed against hard rock. It is more convenient and accurate to use the new system for exploration.…”
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  20. 5940
    por Zhang, Yan, Chen, Guo-Xun
    Publicado 2022
    “…This will clarify the possible roles of inflammation factors and related signaling pathways (like EPK1/2, NF-κB and Rho/ROCK) in the pathophysiology of IBD. Therefore, large multicenter studies should be done to confirm the findings and underlying mechanisms in the future.…”
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