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24681
Design of multi-bandgap metamaterial plate based on composite cylindrical resonators
Published 2025-02-01“…Theoretical models employing the plane wave expansion method are developed to compute the band structures of the CLRMP. For rapid evaluation of the bandgap bounding frequencies, closed-form formulas are derived using wave theory in conjunction with Hamilton's principle. …”
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24682
The construction of intelligent nursing and healthcare management platform (智能化健康护理管理平台建设探索)
Published 2022-05-01“…The intelligent nursing and healthcare management platform focuses on the data-driving healthcare management model, advocates the core concept of "prevention is better than treatment", proposes the service concept of "pre hospital prevention, in hospital treatment and post hospital intervention", collects the whole process and all-round health-related data such as patient physiological monitoring signs, laboratory tests, disease treatment, diet and activities. By using cloud computing and artificial intelligence technology, the intelligent health care management platform aims to establish health care decision-making models, such as evaluation, prediction and intervention, and provide personalized health management services. …”
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24683
A Comparison of Classification Algorithms for Predicting Dis-tinctive Characteristics in Fine Aroma Cocoa Flowers Using WE-KA Modeler
Published 2024-09-01“…The algorithms Simple Logistic and LMT were the most accurate and specific, while Naive Bayes was the most efficient in terms of computational complexity for model building. This research provides a comprehensive overview of the use of machine learning to analyze functional traits of flowers that most influence cocoa genetic diversity. …”
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24684
Hydrocele of the Canal of Nuck with Endometriosis: Right-Side Dominance Confirmed by Literature Review and Statistical Analysis
Published 2020-01-01“…The patient is a 45-year-old woman who presented with left inguinal mass with persistent pain. Computed tomography (CT) and magnetic resonance imaging (MRI) revealed a 30 mm cystic mass, and a hydrocele of the canal of Nuck (HCN) was suspected. …”
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24685
Predicting Tipping Points in a Family of PWL Systems: Detecting Multistability via Linear Operators Properties
Published 2024-06-01“…In this paper, we present a simple and novel method for predicting the occurrence of tipping points in a family of Piece-Wise Linear systems (PWL) that exhibit a transition from monostability to multistability with the variation of a single parameter, without the need to compute time series, i.e., without solving the differential equations of the system. …”
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24686
Torsion of a Large Myomatous Uterus Associated with Progressive Renal Failure and Paralytic Ileus in an 86-Year-Old Woman
Published 2019-01-01“…A large myomatous uterus with broad calcification was identified when she underwent surgery to repair an umbilical hernia one year before the symptoms developed. Computed tomography revealed that one year later, the myomatous uterus significantly increased in size and the calcified lesion of the fibroid was largely displaced. …”
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24687
A Multifactory Integrated Production and Distribution Scheduling Problem with Parallel Machines and Immediate Shipments Solved by Improved Whale Optimization Algorithm
Published 2018-01-01“…Moreover, we conducted computational experiments by generating several test problems to evaluate the proposed algorithm. …”
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24688
Peripherally Embolizing Aortic Thrombus: The Work-Up, Management, and Outcome of Primary Aortic Thrombus
Published 2019-01-01“…A 46-year-old female with past medical history of tobacco dependence presented for low-grade fever and sudden onset, severe right upper quadrant abdominal pain with associated nausea and vomiting. Computed tomography (CT) revealed an intraluminal polypoid filling defect arising from the isthmus of the aorta projecting into the proximal descending aorta and findings consistent with infarction of the spleen and right kidney. …”
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24689
An Approach to Fault Diagnosis for Gearbox Based on Image Processing
Published 2016-01-01“…Differing from the analysis method in a one-dimensional space, the computing method in the field of image processing in a 2-dimensional space is applied to accomplish autoextraction and fault diagnosis of a gearbox. …”
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24690
Performance Deterioration of Pitot Tubes Caused by In-Flight Ice Accretion: A Numerical Investigation
Published 2021-01-01“…Coupled with the open source computational fluid dynamics (CFD) platform, OpenFOAM, the numerical strategy integrates the airflow determination by the Reynolds-averaged Navier-Stokes equations, droplet collection evaluation by Eulerian representation, and ice accumulation by mass and energy conservation. …”
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24691
Properties of the wormhole model in de Rham–Gabadadze–Tolley like massive gravity with specific matter density
Published 2025-01-01“…The volume integral quantifier (VIQ) is computed to determine the amounts of matter that violate the null energy condition. …”
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24692
Fano resonated, ultrathin, flexible and ultrawideband absorption featured nano-metaatom structure with dispersion gap optimized for optical range applications
Published 2025-01-01“…The Finite Difference Time Domain (FDTD) method incorporated with CST microwave studio computational tool used for the entire analysis. Numerical analysis revealed that, on average 86.66% absorption achieved for 560 THz bandwidth peak absorption for the unit cell was 99.88% and the array shows 99.79%. …”
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24693
Optimization of airflow organization in the passenger cabin of special vehicles based on human thermal sensation
Published 2025-01-01“…This paper investigates the thermal management of special vehicles by proposing various airflow organization schemes achieved through the strategic placement of air vents. Experiments and computational simulations were conducted, tailored to the specific operational scenarios of these vehicles. …”
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24694
Toward zero-excess lithium sulfur batteries: a systematic cell parameter study
Published 2025-01-01“…Furthermore, we employ x-ray computed tomography to elucidate the morphological changes and degradation processes occurring within the positive electrode composite, revealing the irreversible loss of Li _2 S/S _8 during cycling, which is exacerbated at high rates. …”
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24695
Potential Spectrum of Accompanied Penetrating Abdominal Intraperitoneal Injuries with Bowel Evisceration: Surprises Awaiting the Trauma Surgeon in Resource Limited Settings
Published 2022-01-01“…Majority of injuries are concealed and diagnosed intraoperatively and dealt with relatively junior trauma surgeons in emergency settings in remote limited settings. Computed tomography (CT) scans and Magnetic Resonance Imaging (MRI) facilities are scarce in resource limited settings. …”
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24696
Fast copy-move forgery detection algorithm based on group SIFT
Published 2020-03-01“…Aiming at the high computational complexity of the existing copy-move image forgery detection algorithm,a copy-move forgery detection algorithm based on group scale-invariant feature transform (SIFT) was proposed.Firstly,the simple linear iterative clustering (SLIC) was utilized to divide the input image into non-overlapping and irregular blocks.Secondly,the structure tensor was introduced to classify each block as flat blocks,edge blocks and corner blocks,and then the SIFT feature points extracted from the block were taken as the block features.Finally,the forgery was located by the inter-class matching of the block features.By means of inter-class matching and feature point matching,the time complexity of the proposed copy-move forgery detection algorithm in feature matching and locating forgery region was effectively reduced while guaranteeing the detection effect.The experimental results show that the accuracy of the proposed algorithm is 97.79%,the recall rate is 90.34%,and the F score is 93.59%,the detecting time for the image with size of 1024×768 is 12.72 s,and the detecting time for the image with size of 3000×2000 was 639.93 s.Compared with the existing copy-move algorithm,the proposed algorithm can locate the forgery region quickly and accurately,and has high robustness.…”
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24697
Tidally Distorted Stars Are Triaxial Pulsators
Published 2025-01-01“…Stars in close binaries are tidally distorted, and this has a strong effect on their pulsation modes. We compute the mode frequencies and geometries of tidally distorted stars using perturbation theory, accounting for the effects of the Coriolis force and the coupling between different azimuthal orders m of a multiplet induced by the tidal distortion. …”
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24698
A Strongly A-Stable Time Integration Method for Solving the Nonlinear Reaction-Diffusion Equation
Published 2015-01-01“…However those methods are computationally expensive, especially for nonlinear cases. …”
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24699
Numerical Simulation Study on Aeroacoustic Characteristics within Deformable Cavities
Published 2019-01-01“…Large eddy simulation (LES) and computational aeroacoustics (CAA) are combined to simulate a typical open cavity noise. …”
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24700
Rectal Tumour Staging with Endorectal Ultrasound: Is There Any Difference between Western and Eastern European Countries?
Published 2016-01-01“…Rectal endoscopic ultrasound (ERUS) is a good alternative to computed tomography and magnetic resonance imaging. …”
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