Topaicí molta laistigh de do chuardach.
1 - 20 toradh á dtaispeáint as 86 toradh san iomlán ar an gcuardach '"Hard rock"', am iarratais: 1.46s Beachtaigh na torthaí
  1. 1
    Foilsithe / Cruthaithe 2020
    Faigh an téacs iomlán
    ISRM International Symposium - EUROCK 2020 - Hard Rock Engineering
  2. 2
    Foilsithe / Cruthaithe 1999
    “…Hard rock aquifers in arid and semi-arid zones…”
    LEABHAR
    Water resources of hard rock aquifers in arid and semi-arid zones /
  3. 3
    “…We report here 12 cases of sarcoidosis in a cohort of hard‐rock miners in Northern Ontario, Canada. To our knowledge sarcoidosis has not been reported previously in hard‐rock miners. …”
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    Sarcoidosis in Northern Ontario hard‐rock miners: A case series
  4. 4
    de réir Zeng, Sheng, Li, Jinzhu, Tan, Kaixuan, Zhang, Shuwen
    Foilsithe / Cruthaithe 2018
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    Fractal kinetic characteristics of hard-rock uranium leaching with sulfuric acid
  5. 5
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    Effect of calcination on coarse gangue rejection of hard rock lithium ores
  6. 6
    “…Thus, this work investigates the relationships between calcination temperatures and the physical behaviour of hard rock lithium ores. The results showed that the increase in calcination temperature resulted in a higher lithium deportment in the finest size fraction (−0.6 mm) and thus a higher lithium grade and recovery. …”
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    Influence of calcination temperatures on lithium deportment by screening hard rock lithium
  7. 7
    de réir Cui, Guangyao, Ma, Jianfei
    Foilsithe / Cruthaithe 2021
    “…Tunnel portal sections located in the soft-hard rock junction are vulnerable to the strong earthquake motions in seismically active regions. …”
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    Shaking table test on the seismic response of the portal section in soft and hard rock junction
  8. 8
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    Hard-Rock Stability Analysis for Span Design in Entry-Type Excavations with Learning Classifiers
  9. 9
    de réir Xu, Huawei, Apel, Derek B., Wang, Jun, Wei, Chong, Skrzypkowski, Krzysztof
    Foilsithe / Cruthaithe 2022
    “…All three proposed sill pillar recovery schemes were feasible and safe to recover the sill pillars in this hard rock mine, and the scheme SBS was the optimum one among the three schemes.…”
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    Investigation and Stability Assessment of Three Sill Pillar Recovery Schemes in a Hard Rock Mine
  10. 10
    de réir Du, Kun, Yang, Songge, Zhou, Jian, Wang, Lichang
    Foilsithe / Cruthaithe 2023
    “…It is of great significance to study the evaluation indexes and classification criteria of the bursting liability of hard rocks, which is important for the prediction and prevention of rockbursts in hard rocks. …”
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    Measurement and Classification Criteria of Strength Decrease Rate and Brittleness Indicator Index for Rockburst Proneness Evaluation of Hard Rocks
  11. 11
    de réir Wang, Zhaofeng, Feng, Guangliang, Liu, Xufeng, Zhou, Yangyi
    Foilsithe / Cruthaithe 2023
    “…Deep underground engineering encounters substantial layered hard rock formations, and the engineering triaxial stress path involves an increase in maximum principal stress, constant intermediate principal stress, and a decrease in minimum principal stress. …”
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    An Experimental Investigation on the Foliation Strike-Angle Effect of Layered Hard Rock under Engineering Triaxial Stress Path
  12. 12
    “…The living Frutexites-like biofilms were sampled at 160 m depth in the Äspö Hard Rock Laboratory in Sweden. Investigations using microscopy, 454 pyrosequencing, FISH, Raman spectroscopy, biomarker and trace element analysis allowed a detailed view of the structural components of the mineralized biofilm. …”
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    Frutexites-like structures formed by iron oxidizing biofilms in the continental subsurface (Äspö Hard Rock Laboratory, Sweden)
  13. 13
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    Hard rock landforms generate 130 km ice shelf channels through water focusing in basal corrugations
  14. 14
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    Primary support optimization of large-span and shallow buried hard rock tunnels based on the active support concept
  15. 15
    “…These data, rendering the vertical distribution of water contents in the subsurface, are used to show their potential in conditioning a hydrological model of the catchment, as described in the article “Magnetic resonance sounding measurements as posterior information to condition hydrological model parameters: Application to a hard-rock headwater catchment” – Journal of Hydrology (2020). …”
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    Magnetic resonance sounding dataset of a hard-rock headwater catchment for assessing the vertical distribution of water contents in the subsurface
  16. 16
    de réir Blanc, Paul D., Trupin, Laura, Yelin, Edward H., Schmajuk, Gabriela
    Foilsithe / Cruthaithe 2022
    “…However, risk of RA in hard rock mining has not been thoroughly investigated. …”
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    Assessment of Risk of Rheumatoid Arthritis Among Underground Hard Rock and Other Mining Industry Workers in Colorado, New Mexico, and Utah
  17. 17
    de réir He, Jiang-fu, Liang, Yun-pei, Li, Li-jia, Luo, Yong-jiang
    Foilsithe / Cruthaithe 2018
    “…The penetration rate of conventional hard rock drilling technology in horizontal directional well excavations is relatively low, resulting in multiple overgrinding of drill cuttings in bottom boreholes. …”
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    Theoretical analysis and design of hydro-hammer with a jet actuator: An engineering application to improve the penetration rate of directional well drilling in hard rock formations
  18. 18
    de réir Cui, Jianbin, Xie, Liangfu, Qin, Yongjun, Liu, Xuejun, Wang, Jianhu, Qian, Jiangu
    Foilsithe / Cruthaithe 2023
    “…By researching the distance between blasthole and interface of soft-hard rock strata, as well as the time of delay detonation, blasting effect of the rock mass will be more controllable. …”
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    Cracks propagation characteristics of double-hole delay blasting in soft-hard composite rock mass
  19. 19
    de réir Ding, Xiaohua, Yang, Yuqing, Zhou, Wei, An, Wen, Li, Jinyu, Ebelia, Manda
    Foilsithe / Cruthaithe 2022
    “…The process of blasting stress wave propagation and crack propagation is directly affected by the physical properties of the rock mass and internal joints in the rock. In soft and hard rock layers, the blasting process is more complicated since the blasting stress wave needs to penetrate two kinds of rocks with different physical properties and the interface between soft rock and hard rock. …”
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    The law of blast stress wave propagation and fracture development in soft and hard composite rock
  20. 20
    de réir Mukherjee, Saumitra
    Foilsithe / Cruthaithe 2008
    “…Use of only panchromatic sensor data of IRS-1D satellite with 5.8-meter spatial resolution has the potential to infer lineaments and faults in this hard rock area. It is essential to identify the location of interconnected lineaments below buried pediment plains in the hard rock area for targeting sub-surface water resources. …”
    Faigh an téacs iomlán
    Faigh an téacs iomlán
    Online Alt Téacs
    Role of Satellite Sensors in Groundwater Exploration
Uirlisí cuardaigh: Faigh fotha RSS