Seismic Effects of Blasting in Rock

Kuzmenko, A.A.; Vorobev, V.D.; Denisyuk, I.I.; Dauetas, A.A.

doi:10.1201/9780203740002

Cited by 7 publications

(12 citation statements)

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“…Realizing Kondo effect with cold atomic gas can enrich our understanding of Kondo physics itself. There is an increasing interests of simulating Kondo physics with ultracold atoms [89][90][91][92][93][94][95][96][97][98][99][100][101][102][103]. First of all, for the Kondo effect observed in condensed matter materials, the spin-exchanging coupling is usually much weaker than the Fermi energy and therefore the Kondo temperature is also much lower than the Fermi temperature.…”

Section: Discussionmentioning

confidence: 99%

Controlling the interaction of ultracold alkaline-earth atoms

et al. 2020

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Ultracold alkaline-earth atoms have now been widely explored for precision measurements and quantum simulation. Because of its unique atomic structure, alkaline earth atoms possess great advantages for quantum simulation and studying quantum many-body matters, such as simulating synthetic gauge field, Kondo physics and SU (N ) physics. To fully explore the potential of ultracold alkaline-earth atoms, these systems also need to be equipped with the capability of tuning the interatomic interaction to the strongly interacting regime. Recently several theoretical proposals and experimental demonstrations have shown that both spin-independent and spin-exchanging interaction can be tuned to resonance. In this perspective, we will review these progress and discuss the new opportunities brought by these interaction control tools for future quantum simulation studies with ultracold alkaline-earth atoms. arXiv:1908.04973v1 [cond-mat.quant-gas]

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Section: Discussionmentioning

confidence: 99%

Controlling the interaction of ultracold alkaline-earth atoms

et al. 2020

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“…The resulting reflectivity data was analysed using the RefFit software package developed by A.B. Kuzmenko [19,20].…”

Section: Methodsmentioning

confidence: 99%

Scattering rate collapse driven by a van Hove singularity in the Dirac semimetal PdTe2

Heumen

Berben

Neubrand

et al. 2019

Phys. Rev. Materials

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We present optical measurements of the transition metal dichalcogenide PdTe2. The reflectivity displays an unusual temperature and energy dependence in the far-infrared, which we show can only be explained by a collapse of the scattering rate at low temperature, resulting from the vicinity of a van Hove singularity near the Fermi energy. An analysis of the optical conductivity suggests that below 150 K a reduction in the available phase space for scattering takes place, resulting in longlived quasiparticle excitations. We suggest that this reduction in phase space provides experimental evidence for a van Hove singularity close to the Fermi level. Our data furthermore indicates a very weak electron-phonon coupling. Combined this suggests that the superconducting transition temperature is set by the density of states associated with the van Hove singularity.

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“…In practical, compared with spherical charge, cylindrical charge is used in open-pit blasting excavation more frequently, which is in advantage of its more uniform distribution of explosive energy in rock mass. Although the theoretical solution discussed previously is aiming at the spherical charge, in fact, analysis of the experimental data showed that blasts of cylindrical charges are similar to the processes observed in seismic investigations of blasts with spherical charges [17].…”

Section: Shock and Vibrationmentioning

confidence: 96%

“…where σ max is the peak value of the blasting load, τ 1 is the rising time of the blasting load, and τ 2 is the time of blasting load reduction from peak to zero. By means of the Fourier transform, the velocity spectrum of blasting vibration in the elastic rock mass can be obtained as follows [8,17]:…”

Section: Analysis Of Main Influencing Factors Of the Dominantmentioning

confidence: 99%

Analysis of the Main Factors Influencing the Dominant Frequency of Blast Vibration

Liu

et al. 2019

Shock and Vibration

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At present, the study on the dominant frequency of blasting vibration is still a worldwide problem. Compared with the mature research on the particle peak velocity of blasting vibration, the researches on the dominant frequency of blasting vibration are much less. In this paper, by analyzing the main influencing factors of the dominant frequency, an attenuation equation of the dominant frequency induced by blasting vibration has been proposed by dimensional analysis combined with the theory of radial spherical wave propagation. The proposed equation is applied to the fitting analysis on the dominant frequency measured in Zhoushan Green Petrochemical Base in China, which has obtained a favorable fitting correlation. Based on the fitting analysis, it has found that the correlation coefficient of radial vibration obtained by the proposed equation is higher than that of vertical vibration, which is resulted from the reason that the vibration in vertical is considered to be influenced most by the R-wave on the ground and perceived to be quite different from the radial vibration affected by P-wave. In generally, different components of blasting waves will affect the attenuation of dominant frequency.

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Seismic Effects of Blasting in Rock

Cited by 7 publications

References 0 publications

Controlling the interaction of ultracold alkaline-earth atoms

Controlling the interaction of ultracold alkaline-earth atoms

Scattering rate collapse driven by a van Hove singularity in the Dirac semimetal PdTe2

Analysis of the Main Factors Influencing the Dominant Frequency of Blast Vibration

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