Showing 1,661 - 1,680 results of 2,222 for search '"Geology"', query time: 0.06s Refine Results
  1. 1661

    MFIEN: multi-scale feature interactive enhancement network for seismic data denoising in desert areas by Tie Zhong, Yuxin Ye

    Published 2025-02-01
    “…Abstract Due to complex acquisition environments and geological conditions, in desert seismic data, the background noise is always intense and overlaps with the frequency range of the seismic signals. …”
    Get full text
    Article
  2. 1662

    Sulfur Speciation in the Surface Sediments of Lakes from Different Regions, China: Characterization by S K-Edge XANES Spectroscopy by Wang Jingfu, Chen Jingan, Dai Zhihui, Yang Haiquan, Ma Chenyan

    Published 2016-01-01
    “…In this study, XANES technology was used to examine changes in S speciation in the sediments collected from Taihu Lake, Qinghai Lake, Dianchi Lake, Caohai Lake, and Hongfeng Lake located in distinct geological background areas of China. The results showed that sedimentary S in Qinghai Lake has a high proportion of sulfate averaged 88.9% due to physical weathering of watershed rocks, while deposited S in Taihu Lake has a high fraction of intermediate S (36.5%), which may be the response of the agricultural nonpoint source pollution in drainage basin. …”
    Get full text
    Article
  3. 1663

    Experimental and Theoretical Investigation of Overburden Failure Law of Fully Mechanized Work Face in Steep Coal Seam by Ze Liao, Tao Feng, Weijian Yu, Genshui Wu, Ke Li

    Published 2020-01-01
    “…By establishing the mechanical model of inclined rock beam, the deflection equation of overlying strata beam is obtained. Based on the geological conditions of Xiangyong coal mine in Hunan Province of China, the laws of roof deformation and failure in steep coal seam are obtained by similar simulation experiments. …”
    Get full text
    Article
  4. 1664

    Correlating Measured SPT-N, Shear Wave Velocity and Liquid Limit Values in Melekli Region, Igdır (Türkiye) by Yusuf Guzel

    Published 2024-03-01
    “…This can be attributed to the uniqueness of correlation to the study site as geological conditions at one site differ extensively from another site. …”
    Get full text
    Article
  5. 1665

    Numerical Simulation and Optimization Design of End-Suspended Pile Support for Soil-Rock Composite Foundation Pit by Qingchao Xu, Zhenhao Bao, Tu Lu, Huarui Gao, Jiakang Song

    Published 2021-01-01
    “…Results show the following: (1) Rock-socketed depths have boundary effect on end-suspended piles. Under the given geological conditions, the reasonable socketed ratio is within 0.158∼0.200. (2) The anchor cable prestress can effectively slow down the ground settlement, the force, and deformation of the pile body and can be set to 1P∼1.25P under the conditions of the site. (3) Rock-shoulder width has little influence on the ground settlement and horizontal displacement of piles. …”
    Get full text
    Article
  6. 1666

    Research on the Obstruction Process of Rigid Netting Barriers toward Granular Flow by Yunyun Fan, Fengyuan Wu

    Published 2019-01-01
    “…With the advantages of a simple structure and rapid construction, the rigid netting barrier (RNB) exerts a good obstruction effect on granular flow and is a common engineering measure used to prevent geological disasters in the form of granular flows. …”
    Get full text
    Article
  7. 1667

    A New Method for the Measurement of Gas Pressure in Water-Bearing Coal Seams and Its Application by Xiao Cui, Jiayong Zhang, Liwen Guo, Xuemin Gong

    Published 2020-01-01
    “…Coal seam gas pressure is one of the fundamental parameters used to assess coal seam gas occurrence and is an important index in assessing the risk of gas disaster. However, the geological characteristics of coal seams become increasingly complex with increasing mining degree, thus decreasing the accuracy and success rate of direct methods for measuring gas pressure. …”
    Get full text
    Article
  8. 1668

    Study on Influence of Joint Distribution on Surrounding Rock Failure of an Underground Tunnel by Wanrong Liu, Chao Peng, Baoliang Zhang

    Published 2021-01-01
    “…Due to geological structure and artificial disturbance, a large number of joints and fissures are formed in the surrounding rock of an underground tunnel. …”
    Get full text
    Article
  9. 1669

    Study on Surrounding Rock Stability Mechanism of Gob-Side Entry Retaining with Prefabricated Fracture by Hao Wu, Chuanqu Zhu, Qingfeng Li

    Published 2021-01-01
    “…To study the optimal layout of prefabricated roof cutting line in gob-side entry retaining with roof cutting and pressure relief, based on the engineering geological conditions of 5249 working face in Beipingdong Coal Mine of Baoyuan Mining Company, the FLAC3D numerical simulation method was used to study the surrounding rock characteristics of gob-side entry retaining under different layout conditions of prefabricated roof cutting line, and the optimal layout of prefabricated roof cutting line in gob-side entry retaining with roof cutting and pressure relief was proposed. …”
    Get full text
    Article
  10. 1670

    Structure Diversity and Properties of Some Bola-like Natural Products by Valentin A. Stonik, Tatyana N. Makarieva, Larisa K. Shubina, Alla G. Guzii, Natalia V. Ivanchina

    Published 2024-12-01
    “…The recent identification of new enzymes, taking part in their biosynthesis and metabolism, made it possible to understand molecular aspects of their origination and some features of evolution during geological times. The promising properties of these metabolites, such as their ability to self-assemble and stabilize biological or artificial membranes, and biological activities, attract additional attention to them.…”
    Get full text
    Article
  11. 1671

    Seismic Imaging and Seismicity Analysis in Beijing-Tianjin-Tangshan Region by Xiangwei Yu, Wenbo Zhang, Yun-tai Chen

    Published 2011-01-01
    “…The inferred velocity model of the upper crust correlates well with the surface geological and topographic features in the BTT region. …”
    Get full text
    Article
  12. 1672

    Systematic Performance Evaluation of Shield TBM Cutters for Excavating Multiple Soft Rock by Chuyuan Cao, Kui Zhang

    Published 2021-01-01
    “…In this novel method, by comparing with their expected best value and the corresponding unacceptable limit, all of the selected performance parameters can be synthesized to assess the proximity of the overall merit of each cutter with respect to all the performances considered under all possible geological conditions. Performance indexes including cutting efficiency, structural strength, wear life, and dynamic response were individually analyzed based on linear cutting tests, finite element analyses, and theoretical calculations. …”
    Get full text
    Article
  13. 1673

    Numerical Analysis for the Caving Characteristics of Rock Mass with Inclined Joints in Caving Mining by Jinbo Sui, Fengyu Ren, Jianli Cao, Huan Liu

    Published 2021-01-01
    “…Second, model parameters were determined based on the geological conditions of the mine, and seven models were established. …”
    Get full text
    Article
  14. 1674

    Evaluation Method of Floor Heave Damage Degree and a Case Study in Zaoquan Coal Mine, China by Ai Chen, Qing Ma, Xuesheng Liu

    Published 2021-01-01
    “…With the continuous increase of mining depth and complex mining geological conditions, the mileage of roadways in underground engineering such as coal mine is increasing year by year. …”
    Get full text
    Article
  15. 1675

    Frictional Characteristics of Granite Fault under Imposed Dynamic Normal Disturbance Loads by Guojian Cui, Chuanqing Zhang, Qiming Xie

    Published 2024-12-01
    “…Fault activation induced by dynamic normal disturbance loads resulting from activities such as blasting, excavation, and earthquakes has the potential to trigger significant geological disasters, such as rock bursts, posing a threat to the stability and safety of rock engineering projects. …”
    Get full text
    Article
  16. 1676

    PENTAHELIX ANALYSIS DALAM UPAYA MITIGASI BENCANA DI DESA SELOK ANYAR KECAMATAN PASIRIAN KABUPATEN LUMAJANG by Achmad Fathoni, Kalvin Edo Wahyudi

    Published 2024-04-01
    “…This poses the threat of natural disasters in the territory of Indonesia, especially earthquakes, erupting mountains, tsunamis, and other disasters caused by geological activities. This requires the government and the community to be aware of the potential disasters around it. …”
    Get full text
    Article
  17. 1677
  18. 1678
  19. 1679

    Geomorphologic Phenomenon of Marly Hills and its Effect on Chemical Quality of the Agricultural Water (case study: Kalateh-Sadat watershed of Sabzevar) by Leila Montaseri, Abolghasem Amir Ahmadi, Mohammad Ali Zangeneh Asadi

    Published 2019-12-01
    “…Geomorphological phenomenon discussed in this research is marly hills that is result of volcanic-sedimentary activities of geological tertiary and is discussed the role of chemical effects this hills in mudding water one of the rivers current in its area (Kalateh-Sadat river in west Sabzevar) to irrigate agricultural lands around this river, that slang term to it "water-coloring" they say. …”
    Get full text
    Article
  20. 1680

    Revisiting the age of the Florisbad hominin material by Lee R. Berger, John Hawks

    Published 2023-03-01
    “…Because the fragmentary cranial specimen has value for morphological comparisons, developing additional means of understanding its geological age is necessary. The current data do not demonstrate the presence of H. sapiens in southern Africa at ~260 ka.…”
    Get full text
    Article