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**a Peng
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Article
Real-time hybrid method for maneuver detection and estimation of non-cooperative space targets
A novel hybrid scheme for the maneuver detection and estimation of a noncooperative space target was proposed in this study. The optical measurements, together with the range and range rate measurements from t...
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Initial orbit determination of some cislunar orbits based on short-arc optical observations
Ground- and space-based optical observation is an efficient way to catalog objects in the cislunar space. Initial orbit determination based on optical data is still an open problem for cislunar objects. The mo...
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Article
Vanadium nitride quantum dots@carbon skeleton anode material synthesized via in situ oxidation initiation strategy
Vanadium nitride (VN) has received significant attention as a potential negative electrode material due to its remarkable theoretical and physical properties. However, the electrochemical performance needs to ...
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Multiple Matching Attenuation Based on Curvelet Domain Extended Filtering
The paper develops a multiple matching attenuation method based on extended filtering in the curvelet domain, which combines the traditional Wiener filtering method with the matching attenuation method in curv...
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Response of Grain-Size Distribution Characteristics of a Gravel Bar to Topographic and Hydraulic Conditions: A Case Study from the Upper Yangtze River in China
The characteristics of grain-size distribution on the surface of gravel bars have important implications for riverbed development and fish spawning. In this study, an unmanned aerial vehicle was used to sample...
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Ultrathin GaN Film Derived from Amorphous Ga2O3 Film
It remains a big challenge to synthesize two-dimensional (2D) GaN material for applications in power nanodevices. Traditional synthetic methods require complex equipment and processes and time consuming. Here,...
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Article
Effects of Mineral Displacement on Geothermal Reservoir Properties at High Temperatures Identified using Micro-CT and Digital Volume Correlation
Characterization of reservoir rock samples under in situ conditions is crucial for evaluating the quantity and exploitable potential of geothermal energy. However, reservoir characterization is impeded by the ...
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Stabilization and Blow-up in an Infinite Memory Wave Equation with Logarithmic Nonlinearity and Acoustic Boundary Conditions
In this paper, the authors consider the stabilization and blow up of the wave equation with infinite memory, logarithmic nonlinearity and acoustic boundary conditions. The authors discuss the existence of glob...
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Article
Preparation of (S)-epichlorohydrin using a novel halohydrin dehalogenase by selective conformation adjustment
Chiral epichlorohydrin (ECH) is an attractive intermediate for chiral pharmaceuticals and chemicals preparation. The asymmetric synthesis of chiral ECH using 1,3-dicholoro-2-propanol (1,3-DCP) catalyzed by a h...
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Article
Seismic decomposition method using Ricker wavelet dictionary and its applications for Q-value estimation
Seismic records are composed of many seismic wavelets that are reflected from underground impedance interfaces. Q-value information of the formations is contained in these seismic wavelets; therefore, it motivate...
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Article
Mechanical mechanism and parameter optimization of a tuned inerter damper with delayed fractional-order PID
This paper aims to tackle three challenges in the vibration absorber system with the fractional-order PID, i.e., the rarity of vibration mechanism analysis, limitations in order-taking, and performance enhance...
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Article
A New Method for Evaluating the Recoverability of Geothermal Fluid Under In Situ Conditions Based on Nuclear Magnetic Resonance
Aiming to solve the problems of unclear pore structure, unknown fluid storage and seepage pattern, and inaccurate fluid recoverability evaluation under in situ high pressure of thermal storage, a new method ba...
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Article
A novel feature dimensionality reduction method for gearbox fault diagnosis with HMSDE, DANCo-DDMA and KELM
This paper proposes a gearbox fault diagnosis method with HMSDE, DANCo-DDMA and AOA-KELM. Firstly, the raw HMSDE features are extracted from the raw time domain signals, then, the intrinsic dimension of the HM...
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Article
Modeling and Load Emulation Experimental Verification of a Vehicle Powertrain System Test Bench Based on Rigid-Flexible Coupling Transmission Shaft
A long rigid-flexible coupling transmission shaft (RFCTS) is usually used to connect the dynamometer with the device under test (DUT) in semi-anechoic chamber. However, due to the parameter error and torsional...
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Article
Identification of Shell Color-Associated Genes Using Mantle Branch-Specific RNA Sequencing of Yellow-Colored Line of Pearl Oyster Pinctada fucata martensii
The yellow-colored line of pearl oyster Pinctada fucata martensii displays a yellow prismatic layer and a white nacreous layer that can be used as an ideal model for research on shell color formation. Micro-Raman...
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Article
Resonance study of fractional-order strongly nonlinear duffing systems
This article takes a class of strongly nonlinear Duffing systems with fractional-order terms as the research object, studying their main resonance and conditions for chaos under single-frequency excitation. Th...
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Article
Deformation Behavior of a Large-Scale Excavation and the Effect of an Adjacent Foundation Pit on the Excavation
A large-scale foundation pit with an area of 39,677 m2 (B2) was excavated to the south of an existing 25,720 m2 Chengdu Universal Trade Plaza (CDUTP) foundation pit (B1) in Chengdu, China. The purpose of this man...
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Article
Open AccessAre children with IgA nephropathy different from adult patients?
Previously, several studies have indicated that pediatric IgA nephropathy (IgAN) might be different from adult IgAN, and treatment strategies might be also different between pediatric IgAN and adult IgAN.
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Article
SPD-YOLOv8: an small-size object detection model of UAV imagery in complex scene
Traditional camera sensors rely on human observation. However, in complex scenes, people often experience fatigue when observing objects of various sizes. Moreover, human cognitive abilities have inherent limi...
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Perception data fusion-based computation offloading in cooperative vehicle infrastructure systems
With the rapid advancement of intelligent transportation systems, cooperative vehicle infrastructure systems emerge as a vital frontier for development. Real-time mutual fusion of perception data is a crucial ...
