Yinqiao Li

Response to a vaccine-derived poliovirus type 1 event — Sichuan, China, 2024

Qing Yang, Jiajie Liu, Y Liu, Xiaozhen Ma et autres

BACKGROUND: In September 2024, a 4-month-old infant in Liangshan, Sichuan, China was diagnosed with paralytic poliomyelitis that turned out to have been caused by a vaccine-derived poliovirus type 1 (VDPV1). This was the third VDPV outbreak detected by routine acute flaccid paralysis …

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KLIPA: A Knowledge Graph and LLM-Driven QA Framework for IP Analysis

Guanzhi Deng, Yi Xie, Y.-K. Ng, Mingyang Liu et autres

Effectively managing intellectual property is a significant challenge. Traditional methods for patent analysis depend on labor-intensive manual searches and rigid keyword matching. These approaches are often inefficient and struggle to reveal the complex relationships hidden within large patent datasets, hindering strategic decision-making. …

LightweightPhys: A Lightweight and Robust Network for Remote Photoplethysmography Signal Extraction

Yu Liu, Yinqiao Li, Yan He, Tao Wang et autres

Remote Photoplethysmography (rPPG) has emerged as a promising technology for non-contact heart rate monitoring by analyzing subtle color variations in facial videos, which are caused by changes in blood volume. While traditional rPPG methods often struggle with environmental noise and motion artifacts, …

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Light extraction improvement in GaAs light-emitting diodes for teraherz upconversion imaging

Yinqiao Li, Bo Zhang, Hanbin Wang, Y. F. Wang et autres

Thanks to the terminal optical readout mode rather than the electrical readout mode that relies on traditional readout circuits, upconversion pixelless imaging devices have great potential for photon-type imaging in the infrared/terahertz field. However, the lack of upconversion efficiency has seriously hindered …

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High Sensitive Hydrogen Sensor Based on a Reflective Metallic Grating with Palladium Filled

Lu Wang, Wenzhe Huang, Yunfei Zou, Yinqiao Li et autres

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Phased Array Fed Reflector with Flexible Beam for High Throughput Satellite Application

Ruge Yao, Yifan Lu, Yuepeng Yu, Wenqian Huang et autres

The phased array fed reflector antenna has the flexibility of scanning and shaping. Based on the conjugate field matching method, this paper studies the beam scanning performance of the reflector antenna under the condition of axial defocusing. With a 4.5m aperture and …

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A paired measles-rubella catch-up campaign in Sichuan China to stop an outbreak and strengthen local immunization programs

Jiajie Liu, Qi Qi, Yu Liu, Ping Ni et autres

BACKGROUND: China has been working towards measles elimination, but in 2017, measles outbreaks occurred in Ganzi and Aba prefectures of Sichuan province, representing 95% of all provincial cases and jeopardizing measles elimination. METHODS: During March and April 2017, high-performing prefectures were paired …

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Decoupling tourism growth from carbon emissions: Evidence from Chengdu, China

Zhinan Xu, Yinqiao Li, Lu Wang, Sheng Chen

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Automatic Knowledge Graph Construction over Efficient Information Extraction Networks

Fanyang Bu, Yujue Wang, Yinqiao Li, Menghe Zhang et autres

Knowledge graph construction(KGC) aims at constructing a knowledge graph from enormous amounts of unstructured sources. Once unstructured information is stored in a graph-structured format, it becomes easier to access and utilize. In this paper, we propose a automatic knowledge graph construction method …

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Integrated LTCC transmitter module at Ku band

Jianhua Ji, Yinqiao Li, Sha Huan, Jianming Zhou

A Ku-band transmitter module which is fully integrated in low temperature co-fired ceramic (LTCC) environment is presented in the paper. The module consists of two T/R switches, one phase shifter, one attenuator, one power amplifier and a circulator. Each of them is …