Results 141 to 150 of about 11,518 (264)

Squeezed spin states

open access: yesSqueezed spin states
The basic concept of squeezed spin states is established and the principles for their generation are discussed. Two proposed mechanisms, referred to as one-axis twisting and two-axis countertwisting, are shown to reduce the standard quantum noise S/2 of the coherent S-spin state down to 1/2(S/3)1/3 and 1/2, respectively.
openaire  

Slit tube responses and rock fracture characteristics in slit charge blasting under high in situ stress

open access: yesDeep Underground Science and Engineering, EarlyView.
In this article, the finite element method‐smoothed particle hydrodynamics adaptive coupling algorithm is applied to numerically simulate and analyze the dynamic response of the slit tube and the crack propagation under high in situ stress. The dynamic response of the slit tube mainly exhibits radial response in the vertical direction of the slit and ...
Zhe Sui   +3 more
wiley   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu   +8 more
wiley   +1 more source

Bright squeezed light in the kilohertz frequency band. [PDF]

open access: yesLight Sci Appl
Li R   +6 more
europepmc   +1 more source

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

open access: yesDeep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu   +6 more
wiley   +1 more source

Low-dimensional compact states in 3D moiré lattices. [PDF]

open access: yesNat Commun
Gao Z   +5 more
europepmc   +1 more source

Rechargeable Self‐Powered Flexible Pressure Sensors With Adjustable Sensitivity Based on Quasi‐Solid‐State Zinc‐Ion Batteries

open access: yesEcoEnergy, EarlyView.
his paper presents a self‐powered, rechargeable quasi‐solid‐state zinc‐ion battery‐based flexible pressure sensor with adjustable sensitivity, excellent performance and broad application prospects. ABSTRACT Flexible pressure sensors hold broad application prospects in electronic skin, human–machine interaction, and health monitoring.
Qianqian Yao   +7 more
wiley   +1 more source

Similar Material Simulation Study on Dam Movement and Deformation Law of Deep Coal Seam Mining Under Dam

open access: yesEnergy Science &Engineering, EarlyView.
Aiming at the difficulties in accurately calculating the movement and deformation of small‐sized, deep‐buried dams with a significant height‐to‐depth ratio in deep fully mechanized caving mining, this study proposes to separate the analysis of surface and dam deformation.
Zhang Feng   +7 more
wiley   +1 more source

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