Reverse Time Migration: A Seismic Imaging Technique Applied to Synthetic Ultrasonic Data by Sabine Müller, Ernst Niederleithinger, Thomas Bohlen

“…By using the information from wide angle reflections as well as from multiple events there are fewer limitations compared to SAFT. …”
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Mode Shape-Based Damage Localization in Steel Plates Using a Detection Index Based on 2D Wavelet Analysis by Mohtasham Khanahmadi, Majid Gholhaki, Omid Rezaifar, Adel Younesi

“…To determine the location of the damage, a damage detection index (DDI) was proposed based on the angle between the primary and secondary mode shape vectors and the diagonal detail coefficients obtained from the wavelet analysis of the primary and secondary mode shapes. …”
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A quantum entanglement-based algorithm for discriminating non-orthogonal qubits by Mohammed Zidan, Mohamed N. El-Qersh, Mahmoud Abdel-Aty, Montasir Qasymeh, Hichem Eleuch

“…The proposed algorithm can efficiently identify the state of an unknown qubit in the form cosθ2|0〉+sinθ2|1〉 using the Mz operator. By estimating the angle θ through the measurement of entanglement degree, the proposed algorithm can identify the state of an unknown qubit. …”
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Analysis of the Unsteady Flow Field in a Centrifugal Compressor from Peak Efficiency to Near Stall with Full-Annulus Simulations by Yannick Bousquet, Xavier Carbonneau, Guillaume Dufour, Nicolas Binder, Isabelle Trebinjac

“…In the diffuser entry region, by reducing the mass flow, the high incidence angle from the impeller exit induces a separation on the diffuser vane suction side. …”
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Study on the rheological properties of nano-SiO2 composite modified basalt mineral fiber asphalt mortar by Haiwei Gao, Nanxiang Zheng, Xiang Zhang, Zhihui Li, Zhuohong Cong

“…The taper entry test, dynamic shear rheology test, and bending beam rheology test were employed to analyze the variations in taper entry, shear strength, complex modulus (G*), phase angle ( δ ), rutting factor (G*/sin δ ), modulus of strength (S), and rate of change of strength (m) of the fiber asphalt mastic. …”
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Experimental application of gliders communication system in South China Sea by Shuyang Jia, Shuyang Jia, Shuyang Jia, Baoheng Liu, Baoheng Liu, Sichen Zou, Xiaochuan Zhang, Xiaochuan Zhang, Xiaochuan Zhang

“…Two acoustic transducers are fixed separately at the bow and stern of the underwater glider to ensure that the energy transmission range and angle remain consistent to the surface wave energy glider even if the glider’s attitude changes. …”
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Research on Mechanism and Control Technology of Rib Spalling in Soft Coal Seam of Deep Coal Mine by Shaobo Li, Lei Wang, Chuanqi Zhu, Qihan Ren

“…Through the analysis of the formula of plastic zone, it can be concluded that the coal wall spalling of soft coal seam is related to mining depth, mining height, stress concentration factor, internal friction angle of coal, cohesion, and the compressive strength of coal body. …”
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Spectroscopic Investigations and DFT Calculations on 3-(Diacetylamino)-2-ethyl-3H-quinazolin-4-one by Yusuf Sert, Fatih Ucun, Gamal A. El-Hiti, Keith Smith, Amany S. Hegazy

“…Both the theoretical vibrational frequencies and the optimized geometric parameters such as bond lengths and bond angles have for the first time been calculated using density functional theory (DFT/B3LYP and DFT/M06-2X) quantum chemical methods with the 6-311++G(d,p) basis set using Gaussian 03 software. …”
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Rotation symmetry mismatch and interlayer hybridization in MoS2-black phosphorus van der Waals heterostructures by Zailan Zhang, Alberto Zobelli, Chaofeng Gao, Yingchun Cheng, Jiuxiang Zhang, Jonathan Caillaux, Lipeng Qiu, Songlin Li, Mattia Cattelan, Viktor Kandyba, Alexei Barinov, Mustapha Zaghrioui, Azzedine Bendounan, Jean-Pascal Rueff, Weiyan Qi, Luca Perfetti, Evangelos Papalazarou, Marino Marsi, Zhesheng Chen

“…Unfolded band structures obtained from first principles simulations precisely describe these multiple effects – all independent of the twist angle – and demonstrates that they arise from strong band hybridization between Mo $${d}_{{z}^{2}}$$ d z 2 and P $${p}_{x}$$ p x orbitals. …”
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Deformation-induced pearlite transformation and spheroidization of bearing steel for new energy vehicles by Zhihui Chen, Xiaolong Gan, Man Liu, Zhengliang Xue, Hao Tian, Desheng Li, Guang Xu

“…EBSD results show that with increasing the deformation strain, the size of pearlite colony decreased, the size of pearlite nodules, and the proportion of high-angle grain boundaries decreased first and then increased. …”
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Investigation of the Effect of Confining Pressure on the Mechanics-Permeability Behavior of Mudstone under Triaxial Compression by Lu Shi, Zhijiao Zeng, Zhiming Fang, Xiaochun Li

“…As the confining pressure increased, the strength of the mudstone increased bilinearly, the angle between the fault and the maximum principle stress increased, and the fault became flatter. …”
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Optimization of Wind Turbine Airfoil Using Nondominated Sorting Genetic Algorithm and Pareto Optimal Front by Ziaul Huque, Ghizlane Zemmouri, Donald Harby, Raghava Kommalapati

“…The Lift Coefficient (CL) and Drag Coefficient (CD) data at a range of 0° to 12° angles of attack (α) and at three different Reynolds numbers (Re=68,459, 479, 210, and 958, 422) for all the six airfoils were obtained. …”
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Direct Data Domain Sparsity-Based STAP Utilizing Subaperture Smoothing Techniques by Zhaocheng Yang, Rui Fa, Yuliang Qin, Xiang Li, Hongqiang Wang

“…Since the interference spectrum is sparse in the whole angle-Doppler plane, by employing a sparse regularization, the generated multiple subsnapshots are jointly used to recover the interference spectrum. …”
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Development and Application of Blast Casting Technique in Large-Scale Surface Mines: A Case Study of Heidaigou Surface Coal Mine in China by Li Ma, Kemin Li, Xiaohua Ding, Hongge Peng, Shuangshuang Xiao

“…According to ballistic theory and center-of-mass frame basic movement principles, key factors influencing blast casting effect were analyzed, which include bench height and mining panel width, inclined angle of blast holes, explosive unit consumption (EUC), delay-time interval, presplitting, and blast hole pattern parameters. …”
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The impacts of wild boars (Sus scrofa) on fish community and on instream physical habitat of two small streams in a protected area in Brazil by Marina F. Moreira, Larissa B. S. Milhomens, Pedro L. C. Uzeda, Ana Luiza V. Andrade, Paulo S. Pompeu

“…The amount of fine sediment inside the streams and exposed soil increased, while the bank angle decreased. There were also modifications regarding the fish fauna, including the local disappearance of two species and the constant decline of others. …”
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Simulation Study on Dynamics of Hydraulic Turbines Used in Drilling Engineering by Yijin Zeng, Jin Wang, Shidong Ding, Haobo Zhou, Yanbin Zang, Fangtao Li

“…Using the CFD (computational fluid dynamics) method, based on the realizable k-ɛ turbulence model and Euler multiphase flow model, the effects of different external loads, blade numbers, blade installation angles, and flow rates on the force condition of turbine and the influence of different solid contents, particle sizes, and densities on turbine performance were studied. …”
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Superpixel guided spectral-spatial feature extraction and weighted feature fusion for hyperspectral image classification with limited training samples by Yao Li, Liyi Zhang, Lei Chen, Yunpeng Ma

“…It aims to thoroughly “squeeze” and utilize the untapped spectral and spatial features contained in hyperspectral images from multiple angles and stages. Firstly, with the guidance of superpixels, we represent the hyperspectral image in the form of latent features and use the multi-band priority criterion to select the final discriminant features. …”
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A Case of Segmental Arterial Mediolysis Presenting as Mucosal Gastric Hematoma by Shunsuke Sakuraba, Hajime Orita, Shuhei Ueda, Satoshi Tokuda, Tomoaki Ito, Tomoyuki Kushida, Mutsumi Sakurada, Hiroshi Maekawa, Ryo Wada, Koichi Sato

“…Gastroscopy revealed a submucosal-like tumor on the posterior wall of gastric angle with ulceration. Computed tomography indicated a tumor measuring 65×50 mm in the stomach, which was suspected to have invaded into the pancreas. …”
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Design Optimization of a Multistage Axial Flow Compressor Based on Full-Blade Surface Parameterization and Phased Strategy by Jinxin Cheng, Shengfeng Zhao, Zhaohui Dong, Chengwu Yang

“…The method mainly contains three aspects: full-blade surface parametrization can significantly reduce the number of control variables per blade row and increase the degrees of freedom of the leading edge blade angle compared with the traditional semiblade parametric method; secondly, the artificial bee colony algorithm improved initialization and food source exploration and exploitation mechanism to enhance the global optimization ability and convergence speed, and a distributed optimization system is built on the supercomputing platform based on this method; finally, a phased optimization strategy based on the “synchronous change in multirow blades” is proposed, and expert experience is introduced to achieve a better balance between exploration and exploitation. …”
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Numerical Modeling of Unsteady Cavitating Flows around a Stationary Hydrofoil by Antoine Ducoin, Biao Huang, Yin Lu Young

“…The hydrofoil has a fixed angle of attack of α=6° with a Reynolds number of Re = 750,000 at different cavitation numbers σ. …”
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