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您的检索式：作者名="JUNPENG JIAO"
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| 1 | Experimental study on the influence of temperature cycle on low-rank coal permeability显示文摘The formation temperature is a key factor affecting coalbed methane(CBM)migration in reservoirs.Both the prediction of CBM production and prevention of mine gas disasters require the understanding on the controlling mechanism of temperature on coal permeability.We experimentally examined the evolution of permeability for natural low-rank coal samples under various stresses and cyclic temperature conditions.Apparent permeability and intrinsic permeability decrease significantly when the temperature increases and they only partially recover after the temperature returns.The permeability loss decreases greatly with the increasing number of temperature cycles.The permeability loss due to the rising temperature and the irreversible permeability loss for a whole temperature cycle decrease prominently with increasing confining stress.The impacts of swelling/shrinking of coal matrix,roughness of surface,pore compressibility and weakly bound water in coal on temperature sensitivity of coal permeability are investigated. | ZOU JunPeng JIAO YuYong RATHNAWEERA T D WANG Hao | 2020 | Science China(Technological Sciences)2020，63，6： | 2 |
| 2 | 2,000,000 fps 2D and 3D imaging of periodic or reproducible scenes with single-pixel detectors显示文摘Single-pixel imaging(SPI)can capture 2D images of the target with only a nonpixelated detector,showing promising application potential in nonvisible spectral imaging,low-photon imaging,lidar,and other extreme imaging fields.However,the imaging mechanism of traditional SPI makes it difficult to achieve high imaging speed,which is a primary barrier for its widespread application.To address this issue,in this work,we propose and demonstrate a novel high-speed 2D and 3D imaging scheme based on traditional SPI,termed time-resolved single-pixel imaging(TRSPI).Previous SPI works mainly utilize correlation between a stable target and iterative illumination masks to reconstruct a single image.In TRSPI,by further exploiting correlation information between a dynamic scene and every static mask,we can reconstruct a series of time-varying images of the dynamic scene,given the dynamic scene is repetitive or reproducible.Experimentally,we conducted 2D and 3D imaging on a rotating chopper with a speed of 4800 revolutions per minute(rpm),and imaging speeds up to 2,000,000 fps.It is believed that this technology not only opens up a novel application direction for SPI,but also will provide a powerful solution for high-speed imaging. | WENJIE JIANG YONGKAI YIN JUNPENG JIAO XIAN ZHAO BAOQING SUN | 2022 | Photonics Research2022，10，9： | 2 |
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