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81
Ultra-wideband unidirectional pseudospin-polarized waveguide with dual boundary conditions
Published 2025-02-01“…By enforcing electromagnetic duality, the proposed structure establishes mirror reflection symmetry, significantly reducing backscattering and ensuring robust one-way wave propagation. …”
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82
Design of a Double-Matched Cross-Polar Single Antenna Harmonic Tag
Published 2025-04-01“…Radio frequency identification (RFID) technology has gained significant attention in various industry sectors due to its potential for efficient inventory management, asset tracking, and object localization. …”
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83
Unobtrusive human activity classification based on combined time‐range and time‐frequency domain signatures using ultrawideband radar
Published 2021-10-01“…Abstract In this proposed approach to unobtrusive human activity classification, a two‐stage machine learning–based algorithm was applied to backscattered ultrawideband radar signals. First, a preprocessing step was applied for noise and clutter suppression. …”
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84
Raman Spectroscopy Principles for in vivo Diagnostic by Ellipsoidal Reflectors
Published 2019-09-01“…Additionally, the investigation demonstrates the efficiency of ellipsoidal photometry method for registration of Raman scattering signal on test-solutions. …”
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85
Passive biometric electronic lock via UHF RFID
Published 2021-04-01“…A biometric lock design method was proposed based on the internal features of human body, namely PBLock.It used the backscattered RF signals to collect the impedance characteristics of human fingertips through the contact between human fingers and tags.The advantage of such authentication method is that the human impedance was not easy to be stolen, and it was fully integrated with the hardware characteristics of the device (RFID tags), which greatly increased the difficulty for the attacker to copy and clone.To ensure the availability and efficiency of the system, an optimization authentication mechanism was proposed by cutting tag antenna, which effectively improved the impedance sensitivity.Moreover, the feasibility of passive drive was discussed by using the electromagnetic energy advantage of RFID system.Through a large number of experimental evaluations, the authentication accuracy of PBLock can reach 96%, and the average time cost of a single authentication is 1.4 seconds.Some attack models were presented based on practical environment.The results show that PBLock can effectively prevent counterfeiting attack, impersonation attack and replay attack, which provides an opportunity for the secure application of new biometric electronic locks.…”
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86
Radar reflection of cloud and weather precipitation at the various waves
Published 2022-09-01“…The obtained results can be applied for planning and implementing projects on affecting hailing and man-made increasing of cloud precipitation; perfecting the present and developing the new ones: radar criteria of hail risk of target objects and cloud suitability for artificial precipitation provoking; evaluation methods of physical and economic efficiency when executing anti-hail works as well as works on man-made precipitation increasing.…”
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87
Microwave Radar Sensing of Sea Waves: An Effective Reflection Coefficient
Published 2023-12-01“…At the small incidence angles, the dominant backscattering mechanism for sea waves is the quasi-specular backscattering mechanism. …”
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88
EXPERIMENTAL TRIAL OF USING THE SCIENTIFIC MULTIBEAM ECHOSOUNDER DESIGNED TO DETECT FISH IN A WILD FIELD OF VIEW
Published 2017-01-01“…But to increase the echosounder efficiency in this operation mode, it is necessary to continue improving the data processing algorithms with regards to hydrodynamic noise filtering and to reposition the echosounder underwater unit mounting it at the vessel’s bottom or submerged keel.…”
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89
Two Alternative Methods to Measure the Radiated Emission in a Reverberation Chamber
Published 2016-01-01“…By incorporating the one- and/or two-antenna methods, the radiation efficiency of antennas is also considered. Measurements have been conducted to verify the proposed methods, the results from these three methods are compared, and a very good agreement is obtained. …”
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90
Evaluation of Scintillation Counter Detector Using Gamma Radiation for Gold Detection
Published 2024-12-01“… The aim of this work is to evaluate the efficiency of a new gamma spectrometer technology using a scintillation counter detector. …”
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91
Bounds on the Electromagnetic Dipole Moments through the Single Top Production at the CLIC
Published 2017-01-01“…For systematic uncertainties of δsys=0% (5%), b-tagging efficiency=0.8, center-of-mass energy of s=3 TeV, and integrated luminosity of L=2ab-1 the future e+e- collider may put bounds on the electromagnetic dipole moments a^V and a^A of the top quark of the order of O(10-2–10-1) at the 2σ (3σ) level, which are competitive with those recently reported in previous studies at hadron colliders and the ILC.…”
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92
The Fast Simulation of Scattering Characteristics from a Simplified Time Varying Sea Surface
Published 2015-01-01“…To reduce the number of the segments and make further improvement on the efficiency of PO method, a simplified sea surface is proposed. …”
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93
Multifunction Transceiver for Data Communication, Radar Sensing and Power Transfer
Published 2025-06-01“…Recent investigations are directing attention towards the development of systems that serve dual functions, like simultaneous wireless information and power transfer and radar-communication, aimed at boosting operational efficiency and ensuring seamless communication among different wireless capabilities. …”
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94
Intelligent Pattern Recognition Using Distributed Fiber Optic Sensors for Smart Environment
Published 2024-12-01“…Additionally, the backscattering method requires the signal to travel twice the normal distance, which can be inefficient. …”
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95
Enhanced U-Net for Underwater Laser Range-Gated Image Restoration: Boosting Underwater Target Recognition
Published 2025-04-01“…Underwater optical imaging plays a crucial role in maritime safety, enabling reliable navigation, efficient search and rescue operations, precise target recognition, and robust military reconnaissance. …”
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96
EVALUATION OF THE OBJECTIVES POLARIZATION DISCRIMINATION AGAINST PASSIVE HINDRANCES WITH THE DEVICE, BASED ON CONSIDERATION OF THE SPATIAL VARIATION OF THE FARADAY ROTATION ANGLE I...
Published 2018-08-01“…In order to determine the operability of the device under various conditions and to evaluate its efficiency, the signal-to-noise ratio at the output of the device is calculated in the case where the backscattering matrix of the target and the matrix of the interference element (for example, dipole, angle reflector, etc.) are not diagonal, m .e. when a cross-polarization component appears when the signal from the target or from the interference element is reflected.…”
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97
Proximity effect correction in electron beam lithography using a composite function model of electron scattering energy distribution
Published 2025-05-01“…Moreover, this model not only optimizes the computational efficiency of PSF calculations but also demonstrates greater potential for applications in the exposure of complex structures such as meta-surface and meta-lens.…”
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98
An innovative thermal simulation study of microstructure improvement by delay forging during solidification
Published 2024-11-01“…The solid fraction at the beginning of the forging process is an important factor affecting the performance of the casting-forging integrated forming, which is an innovative and efficient process. The solid fraction depends on the delayed forging time during the casting-forging integrated forming. …”
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99
Synthetic polarization-sensitive optical coherence tomography using contrastive unpaired translation
Published 2024-12-01“…The challenges related to extensive data requirements relying on labeled datasets using only pixel-wise correlations that make it difficult to efficiently regenerate the periodic patterns observed in PS-OCT images were addressed. …”
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100
Thermally tunable add-drop filter based on valley photonic crystals for optical communications
Published 2024-10-01“…However, there are few studies on how to achieve power-efficient tunable devices based on VPCs, which are essential for implementing basic functions such as optical switching and routing. …”
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