Search Results - "Zhu, Hejun"

Seismic evidence for subduction-induced mantle flows underneath Middle America by Zhu, Hejun, Stern, Robert J., Yang, Jidong

“…Laboratory experiments and geodynamic simulations demonstrate that poloidal- and toroidal-mode mantle flows develop around subduction zones. Here, we use a new…”
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Structure of the European upper mantle revealed by adjoint tomography by Zhu, Hejun, Bozdağ, Ebru, Peter, Daniel, Tromp, Jeroen

“…The structure of the European crust and upper mantle is precisely known only in limited regions. A new tomographic model for the entire European upper mantle…”
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Seismic structure of the European upper mantle based on adjoint tomography by Zhu, Hejun, Bozdağ, Ebru, Tromp, Jeroen

“…We use adjoint tomography to iteratively determine seismic models of the crust and upper mantle beneath the European continent and the North Atlantic Ocean…”
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Monitoring Seasonal Fluctuation and Long‐Term Trends for the Greenland Ice Sheet Using Seismic Noise Auto‐Correlations by Luo, Bingxu, Zhang, Shuo, Zhu, Hejun

“…One important feature of the Greenland Ice Sheet (GrIS) change is its strong seasonal fluctuation. Taking advantage of deployed seismographic stations in…”
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Mapping Tectonic Deformation in the Crust and Upper Mantle Beneath Europe and the North Atlantic Ocean by Zhu, Hejun, Tromp, Jeroen

“…We constructed a three-dimensional azimuthally anisotropic model of Europe and the North Atlantic Ocean based on adjoint seismic tomography. Several features…”
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Caribbean plate tilted and actively dragged eastwards by low-viscosity asthenospheric flow by Chen, Yi-Wei, Colli, Lorenzo, Bird, Dale E., Wu, Jonny, Zhu, Hejun

“…The importance of a low-viscosity asthenosphere underlying mobile plates has been highlighted since the earliest days of the plate tectonics revolution…”
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Geometry-preserving full-waveform tomography and its application in the Longmen Shan area by Dong, Xingpeng, Yang, Dinghui, Zhu, Hejun, Chen, Yun

“…Classic L2-norm-based waveform tomography is often plagued by insurmountable cycle skipping problems; as a result, the iterative inversion falls into local…”
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Monitoring Terrestrial Water Storage, Drought and Seasonal Changes in Central Oklahoma With Ambient Seismic Noise by Zhang, Shuo, Luo, Bingxu, Ben‐Zion, Yehuda, Lumley, David E., Zhu, Hejun

“…Significant imbalances in terrestrial water storage (TWS) and severe drought have been observed around the world as a consequence of climate changes. Improving…”
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Defect-driven nanostructuring of low-nuclearity Pt-Mo ensembles for continuous gas-phase formic acid dehydrogenation by Guo, Luyao, Zhuge, Kaixuan, Yan, Siyang, Wang, Shiyi, Zhao, Jia, Wang, Saisai, Qiao, Panzhe, Liu, Jiaxu, Mou, Xiaoling, Zhu, Hejun, Zhao, Ziang, Yan, Li, Lin, Ronghe, Ding, Yunjie

“…Supported metal clusters comprising of well-tailored low-nuclearity heteroatoms have great potentials in catalysis owing to the maximized exposure of active…”
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Elastic Least-Squares Imaging in Tilted Transversely Isotropic Media for Multicomponent Land and Pressure Marine Data by Yang, Jidong, Hua, Biaolong, Williamson, Paul, Zhu, Hejun, McMechan, George, Huang, Jianping

“…Traditional elastic reverse-time migration (RTM) involves P-/S-wave separation for the source and receiver wavefields, followed by applying the zero-lag…”
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Online and automatic identification of encryption network behaviors in big data environment by Hejun, Zhu, Liehuang, Zhu

“…Summary To handle the difficulty in identifying encrypted network traffic in big data environment, a fast and online identification method for encryption…”
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Encrypted network behaviors identification based on dynamic time warping and k-nearest neighbor by Hejun, Zhu, Liehuang, Zhu

“…In order to solve the problem of encrypted traffic identification, the identification method based on dynamic time warping (DTW) and k-nearest neighbor (KNN)…”
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Alcohol Synthesis via Fischer–Tropsch Synthesis over Activated Carbon Supported Alkaline Earth Modified Cobalt Catalyst by Du, Hong, Jiang, Miao, Zhao, Ziang, Li, Yihui, Liu, Tao, Zhu, Hejun, Zhang, Z. Conrad, Ding, Yunjie

“…Although numerous efforts have been made in direct syngas conversion to higher alcohols via Fischer–Tropsch synthesis, the higher alcohols distribution remains…”
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Asymmetric magma plumbing system beneath Axial Seamount based on full waveform inversion of seismic data by Yang, Jidong, Zhu, Hejun, Zhao, Zeyu, Huang, Jianping, Lumley, David, Stern, Robert J., Dunn, Robert A., Arnulf, Adrien F., Ma, Jianwei

“…The architecture of magma plumbing systems plays a fundamental role in volcano eruption and evolution. However, the precise configuration of crustal magma…”
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Highly Selective Conversion of Syngas to Higher Oxygenates over Tandem Catalysts by Li, Yihui, Zhao, Ziang, Lu, Wei, Jiang, Miao, Li, Cunyao, Zhao, Min, Gong, Leifeng, Wang, Shiyi, Guo, Luyao, Lyu, Yuan, Yan, Li, Zhu, Hejun, Ding, Yunjie

“…Selective synthesis of higher oxygenates from syngas is an important but challenging research target, and the present methods for converting syngas into…”
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Three-dimensional angularity characterization of coarse aggregates based on experimental comparison of selected methods by Fang, Huaiying, Zhu, Hejun, Yang, Jianhong, Huang, Xiaoyu, Hu, Xiang

“…The angularity of the coarse aggregate (CA) affects the performance of the concrete. A digital microscope is used to obtain three-dimensional contour data…”
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Real-time positioning of a specific object in the big data environment by Zhu, Hejun, Zhu, Liehuang

“…Real-time positioning of a specific object in the big data environment can improve the monitoring and management capacity for network data. For the real-time…”
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One-step production of C1–C18 alcohols via Fischer-Tropsch reaction over activated carbon-supported cobalt catalysts: Promotional effect of modification by SiO2 by Pei, Yanpeng, Ding, Yunjie, Zhu, Hejun, Du, Hong

“…The promotional effect of SiO2 on the catalytic synthesis of mixed C1–C18 alcohols from syngas using the Fischer-Tropsch reaction over activated…”
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Seismic wavespeed images across the Iapetus and Tornquist suture zones by Zhu, Hejun, Bozdağ, Ebru, Peter, Daniel, Tromp, Jeroen

“…Closures of the Iapetus Ocean and the Tornquist Sea lead to the collision of the paleocontinents of Laurentia, Baltica and Eastern Avalonia during the…”
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Study on Welding Mechanism Based on Modification of Polypropylene for Improving the Laser Transmission Weldability to PA66 by Liu, Huixia, Jiang, Hairong, Guo, Dehui, Chen, Guochun, Yan, Zhang, Li, Pin, Zhu, Hejun, Chen, Jun, Wang, Xiao

“…Polypropylene and PA66 are widely used in our daily life, but they cannot be welded by laser transmission welding (LTW) because of polar differences and poor…”
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