Mostrando 521 - 540 Resultados de 10,994 Para Buscar '"rock ', tiempo de consulta: 0.21s Limitar resultados
  1. 521
  2. 522
    “…Top-coal caving technology is a productive and efficient method in modern mechanized coal mining, the study of coal-rock recognition is key to realizing automation in comprehensive mechanized coal mining. …”
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  3. 523
    “…We use rhenium to track the oxidation of rock-bound organic carbon in the mountain watersheds of New Zealand, where high rates of physical erosion expose rocks to chemical weathering. …”
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  4. 524
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  6. 526
    “…The micro-mechanisms of brittle failure affect the bulk mechanical behaviour and permeability of crustal rocks. In low-porosity crystalline rocks, these mechanisms are related to mineralogy and fabric anisotropy, while confining pressure, temperature and strain rates regulate the transition from brittle to ductile behaviour. …”
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  7. 527
    “…As key regulators of actin organization, the Rho-associated coiled-coil containing protein kinases, ROCK1 and ROCK2, have been associated with cancer dissemination and poorer prognosis. …”
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  8. 528
    “…To date, due to the energetic cost of production and maintenance of biofilms, their existence has not been considered in poor porous subsurface rocks. We applied fluorescence in situ hybridization techniques and confocal laser scanning microscopy in samples from a continental deep drilling project to analyze the prokaryotic diversity and distribution and the possible existence of biofilms. …”
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  9. 529
    “…Finding traces of life or organic components of prebiotic interest in the rock record is an appealing goal for numerous fields in Earth and space sciences. …”
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  10. 530
    “…The Mars Science Laboratory rover Curiosity visited two active wind‐blown sand dunes within Gale crater, Mars, which provided the first ground‐based opportunity to compare Martian and terrestrial eolian dune sedimentary processes and study a modern analog for the Martian eolian rock record. Orbital and rover images of these dunes reveal terrestrial‐like and uniquely Martian processes. …”
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  11. 531
  12. 532
    “…Conceptual similarities have been identified between experiences of extreme sports athletes and those with drug and behavioral addictions. Evidence suggests rock climbers experience craving and other withdrawal-like states when abstinent from their sport. …”
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  13. 533
    “…Melanised cell walls and extracellular polymeric matrices protect rock-inhabiting microcolonial fungi from hostile environmental conditions. …”
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  14. 534
    “…The influence of joint characteristics on the properties of grouted rocks is important in assessing the effects of grouting on jointed rock mass. …”
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  15. 535
  16. 536
  17. 537
    “…Critical medium column theory has typically been used to predict the scope of caved rock zone (CRZ) caused by caving mining method. It is essential to understand the distribution laws of lateral pressure induced by caving mining method with different dipping angles. …”
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  18. 538
    “…Extracting gas from shale rocks is one of the current engineering challenges but offers the prospect of cheap gas. …”
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  19. 539
    “…We determined hematology and plasma biochemistry values for captive African rock pythons (Python sebae) and studied the effects of age, sex, season and hemoparasites on these values. …”
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  20. 540
    “…In order to study the fractal dynamic properties of uranium leach mining and discuss the influence of ore crushing on the dynamics of leach mining, uranium mine ore rocks in southern China were selected as the research object and an acid leaching experiment was performed on the ore samples with different fractal dimensions of 1.1, 1.4, 1.7, 2.0, 2.3 and 2.6. …”
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