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8 Result(s)

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  1. No Access

    Article

    21 kW, 166 fs pulses from passive mode-locked ytterbium-doped fiber laser employing Bi2O2Te nanosheets as saturable absorber in 1 μm

    Ultrafast pulsed lasers are pivotal in advanced domains such as optical communications, optical metrology, all-optical sampling, optical frequency combs, laser ranging, and laser machining, where saturable abs...

    Zhan-Qiang Hui, Zhao-Feng Yang, Dong-Dong Han, Tian-Tian Li… in Applied Physics B (2024)

  2. No Access

    Article

    Dynamic tensile strength weakening effect of pretension stressed red sandstone under impact load

    Tension failure of deep surrounding rock is a very common failure mode, which is closely related to the couple of static pre-stress and impact load. Thus, the dynamic tensile strength of pretension stressed Br...

    Wu-xing Wu 伍武星, Feng-qiang Gong 宫凤** in Journal of Central South University (2023)

  3. No Access

    Article

    Flotation separation of dolomite and brucite via selective adsorption of the inhibitor tetrasodium hydroxyethylphosphate

    Herein, the flotation separation of dolomite and brucite was performed using tetrasodium hydroxyethylphosphate (TH) as the inhibitor. Microflotation tests show that for a sodium dodecyl sulfonate (SDS) concent...

    **u-feng Gong 宫秀峰, ** Yao 姚金, Bin Yang 杨斌… in Journal of Central South University (2023)

  4. No Access

    Article

    Process and mechanism investigation on comprehensive utilization of arsenic-alkali residue

    Arsenic-alkali residue is a solid waste produced by the antimony smelting industry, which can pose a threat to the environment and human health. The common wet treatment process of arsenic-alkali residue has a...

    Ao Gong 龚傲, Xuan-gao Wu 吴选高, **-hui Li **金辉… in Journal of Central South University (2023)

  5. No Access

    Article

    Brazilian disc test study on tensile strength-weakening effect of high pre-loaded red sandstone under dynamic disturbance

    Tensile failure (spalling or slabbing) often occurs on the sidewall of deep tunnel, which is closely related to the coupled stress state of deep rock mass under high pre-static load and dynamic disturbance. To...

    Feng-qiang Gong 宫凤**, Wu-xing Wu 伍武星, Le Zhang 张乐 in Journal of Central South University (2020)

  6. No Access

    Article

    Experimental investigation on influence of loading rate on rockburst in deep circular tunnel under true-triaxial stress condition

    To investigate the influence of loading rate on rockburst in a circular tunnel under three-dimensional stress conditions, the true-triaxial tests were conducted on 100 mm×100 mm×100 mm cubic sandstone specimen...

    Xue-feng Si 司雪峰, Lin-qi Huang 黄麟淇… in Journal of Central South University (2020)

  7. No Access

    Article

    Effect of loading rate on fracture behaviors of shale under mode I loading

    In this study, the effect of loading rate on shale fracture behaviors was investigated under dynamic and static loading conditions. Cracked straight through Brazilian disc (CSTBD) shale specimens were tested w...

    Qin **e 谢秦, Sheng-xiang Li **生相, **-ling Liu 刘希灵… in Journal of Central South University (2020)

  8. No Access

    Article

    Experimental simulation investigation of influence of depth on spalling characteristics in circular hard rock tunnel

    A series of true-triaxial compression tests were performed on red sandstone cubic specimens with a circular hole to investigate the influence of depth on induced spalling in tunnels. The failure process of the...

    Yong Luo 罗勇, Feng-qiang Gong PhD 宫凤**, **-bing Li **夕兵… in Journal of Central South University (2020)