Qi Yang

Dynamic Entropy Amplification via Random Fiber Gratings for 6.58 Gbit/s Physical‐Layer Key Distribution Over 600 km Link

T. Qiu, Xiangpeng Xiao, Yuqing Wu, Tian Qiu et autres

ABSTRACT Physical‐layer secure key distribution leverages shared random entropy sources to enable key agreement between legitimate parties. However, existing SKD schemes face a fundamental trade‐off between key generation rate and distance, constrained by limited entropy bandwidth and degraded utilization efficiency over long …

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Not All Views Matter: A View-Selective Approach to Point Cloud Perceptual Quality Assessment

Yida Xiang, Yujie Zhang, Bingyang Cui, Kaifa Yang et autres

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Phase Analysis and Magnetic Properties in Sintered RE–(Fe,Co)–Al–B Magnets

Pengcheng Yang, M. LIU, Qi Yang, Qian Zhao et autres

RE2(Fe,Co)14B magnets bears high Cure temperature, but their coercivity decreases due to the poor crystal structure stability of RE2(Fe,Co)14B. In this paper, Al element was added into RE-(Fe,Co)-Al-B magnets, and the coercivity increases monotonously with the addition of Al elements. For Al …

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Compact mid-infrared transmitter and receiver for free-space satellite communications

Saeed Salimian Rizi, Liam Flannigan, Ross Cheriton, Daniel Poitras et autres

We demonstrate a compact mid-infrared (MIR) free-space optical transceiver based on packaged, fiber-coupled intracavity difference-frequency generation (DFG) and sum-frequency generation (SFG) modules operating at room temperature. The system achieves stable MIR generation, recovery of modulated signals up to 1.3 Gb/s, and outdoor …

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Exploring the future development of professional music therapy in China

Qi Yang

The purpose of this study is to investigate the relevance and impact of the American Music Therapy Association (AMTA) competencies in shaping music therapy education and practice in China. It explores how these competencies correspond to Chinese cultural values and professional needs …

Logarithm-based Nonlinear Quantized Digital-Analog Radio-over-Fiber Enables 20 dB SNR Gain in Analog Mobile Fronthaul

Yu Xia, Hui Rong, Chuanming Huang, Mengfan Cheng et autres

We propose and experimentally demonstrate a novel SNR-enhanced A-RoF scheme using logarithmic nonlinear quantized DA-RoF, achieving another 10dB SNR gain compared to conventional DA-RoF modulation with the same spectral efficiency. EVM of 1.20% and 20dB SNR gain are realized for 1024QAM-OFDM signal …

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Vessel wall imaging-dedicated deep learning (VWI-DL): Toward a 5-min clinically robust MR protocol

Pengcheng Wang, Junzhou Chen, Zhen Wang, Nasim Sheikh‐Bahaei et autres

Motivation: Long scan times (8-12 minutes) in whole-brain MR vessel wall imaging (VWI) cause patient discomfort and motion artifacts, limiting clinical utilization. Faster VWI with preserved image quality is highly desirable. Goal(s): To develop a VWI-dedicated deep learning model to substantially accelerate …

Carrier Reconfiguration for Improving Output Voltage Quality and Balancing Capacitor Voltages in MMDTC-Based STATCOM

Qi Yang, Yingchun Ji, Xiaofan Ji, Xiangzheng Cui et autres

For Modular Multilevel DC-Link T-Type Converter (MMDTC)-based STATCOMs, under identical operating conditions, the submodule (SM) capacitor voltage ripple is inversely proportional to its capacitance value. A configuration with a lower capacitance will inevitably result in significant capacitor voltage ripples. During the PWM …

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A preliminary study on the impact of high-level pond tailwater discharge on beach topography: based on unmanned aerial vehicle LiDAR measurement data

Liping Huang, Yali Qi, Qi Yang, G. W. Li et autres

Abstract High-level pond aquaculture, as a typical aquaculture model along the South China coast, poses potential threats to coastal ecosystems due to beach topographic changes induced by its tailwater discharge. Supported by drone technology, this study employed a combined method of DJI …

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Scalable four-mode cyclic converter based on a semi-inverse design approach

Yongchen Wang, Zhe Yuan, Hangming Fan, Junlin Pan et autres

The cyclic mode converter offers an appealing solution for eliminating differential mode delay and mode-dependent loss in mode-division multiplexing transmission systems. In this work, we present an innovative four-mode cyclic mode converter. This device boasts high performance, scalability, broad bandwidth, and excellent …

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Overhead Contact System (OCS) Defects Inspection and Training Management System with Decision Support

Qi Yang

Views: 17 ABSTRACT The Overhead Contact System (OCS) is vital for railway electrification but prone to defects from environmental and mechanical stresses. Traditional manual inspections are inefficient and error prone. This study develops an OCS defects inspection and training management system based …

Performance Investigations of InAs/InP Quantum-Dot Coherent Comb Laser with Fiber Optics Using Photonic Wire Bonding

Qi Yang, Xiaoran Xie, G. C. Liu, Philip J. Poole et autres

We investigate the performance of an InAs/InP quantum-dot coherent comb laser (QD CCL) directly bonded to a polarization-maintaining (PM) fiber using photonic wire bonding (PWB). The comb laser maintains a 24.92 GHz frequency spacing post-PWB, with a 2.2 dB insertion loss. Optical …

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