Riqing Chen
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View article: Efficacy of a virtual bronchoscopic navigation system improved by deep learning for biopsy of peripheral lung lesions: a single-center randomized controlled trial
Efficacy of a virtual bronchoscopic navigation system improved by deep learning for biopsy of peripheral lung lesions: a single-center randomized controlled trial Open
Background: Existing virtual bronchoscopic navigation (VBN) biopsy systems are ineffective in reconstructing small airway trees of 2-3 mm, which leads to an inability to accurately guide the biopsy of peripheral pulmonary lesions (PPL). Th…
View article: A Highly Tough and Strain‐Sensitive MXene Hydrogel Sensor Enabling Integrated Wearable Electronics with Body Conformability and Real‐Time Visualization
A Highly Tough and Strain‐Sensitive MXene Hydrogel Sensor Enabling Integrated Wearable Electronics with Body Conformability and Real‐Time Visualization Open
Hydrogel sensors are emerging as one promising device for wearable electronics by virtue of intrinsic flexibility and stimuli sensitivity. In particular, MXene hydrogel sensors possess superior properties of high sensitivity and wide strai…
View article: Near-Field Directional Modulation for RIS-Aided Movable Antenna MIMO Systems with Hardware Impairments
Near-Field Directional Modulation for RIS-Aided Movable Antenna MIMO Systems with Hardware Impairments Open
Movable antennas (MAs) are a promising technology to achieve a significant enhancement in rate for future wireless networks. The pioneering investigation on near-field directional modulation design for a reconfigurable intelligent surface …
View article: AI-empowered Channel Estimation for Block-based Active IRS-enhanced Hybrid-field IoT Network
AI-empowered Channel Estimation for Block-based Active IRS-enhanced Hybrid-field IoT Network Open
In this paper, channel estimation (CE) for uplink hybrid-field communications involving multiple Internet of Things (IoT) devices assisted by an active intelligent reflecting surface (IRS) is investigated. Firstly, to reduce the complexity…
View article: GLN-LRF: global learning network based on large receptive fields for hyperspectral image classification
GLN-LRF: global learning network based on large receptive fields for hyperspectral image classification Open
Deep learning has been widely applied to high-dimensional hyperspectral image classification and has achieved significant improvements in classification accuracy. However, most current hyperspectral image classification networks follow a p…
View article: Exploring spatial–temporal evolution patterns of urban heat islands in summer and winter: evidence from a megacity of China
Exploring spatial–temporal evolution patterns of urban heat islands in summer and winter: evidence from a megacity of China Open
Investigating the urban heat island (UHI) effect across different seasons can reveal the impact of seasonal temperature changes on the urban environment, improve the living standard, and develop feasible measures to mitigate UHI effects. I…
View article: Machine learning-based non-destructive terahertz detection of seed quality in peanut
Machine learning-based non-destructive terahertz detection of seed quality in peanut Open
Rapid identification of peanut seed quality is crucial for public health. In this study, we present a terahertz wave imaging system using a convolutional neural network (CNN) machine learning approach. Terahertz waves are capable of penetr…
View article: CausalCellSegmenter: Causal Inference inspired Diversified Aggregation Convolution for Pathology Image Segmentation
CausalCellSegmenter: Causal Inference inspired Diversified Aggregation Convolution for Pathology Image Segmentation Open
Deep learning models have shown promising performance for cell nucleus segmentation in the field of pathology image analysis. However, training a robust model from multiple domains remains a great challenge for cell nucleus segmentation. A…
View article: MangroveSeg: Deep-Supervision-Guided Feature Aggregation Network for Mangrove Detection and Segmentation in Satellite Images
MangroveSeg: Deep-Supervision-Guided Feature Aggregation Network for Mangrove Detection and Segmentation in Satellite Images Open
Mangrove forests are significant participants in coastal ecological environment systems. For the development of protection strategies, it is crucial to automatically and accurately detect the distribution and area of mangroves using satell…
View article: OpenNDD: Open Set Recognition for Neurodevelopmental Disorders Detection
OpenNDD: Open Set Recognition for Neurodevelopmental Disorders Detection Open
Since the strong comorbid similarity in NDDs, such as attention-deficit hyperactivity disorder, can interfere with the accurate diagnosis of autism spectrum disorder (ASD), identifying unknown classes is extremely crucial and challenging f…
View article: MCRformer: Morphological Constraint Reticular Transformer for 3D Medical Image Segmentation
MCRformer: Morphological Constraint Reticular Transformer for 3D Medical Image Segmentation Open
Medical image segmentation is essential in medical image analysis since it can provide reliable assistance in computer-aided clinical diagnosis, treatment planning, and intervention. Although deep learning algorithms based on CNNs and Tran…
View article: Design of a LDO with High PSRR
Design of a LDO with High PSRR Open
One of the common ways to increase the PSRR(power supply rejection ratio) of LDO (low dropout linear regulator) is increasing the gain of error amplifier, but the stability of LDO system will also be reduced. A new high gain error amplifie…
View article: Joint Beamforming and Phase Shift Design for Hybrid IRS and UAV-Aided Directional Modulation Networks
Joint Beamforming and Phase Shift Design for Hybrid IRS and UAV-Aided Directional Modulation Networks Open
Recently, intelligent reflecting surfaces (IRSs) and unmanned aerial vehicles (UAVs) have been integrated into wireless communication systems to enhance the performance of air–ground transmission. To balance performance, cost, and power co…
View article: Low-Complexity Three-Dimensional AOA-Cross Geometric Center Localization Methods via Multi-UAV Network
Low-Complexity Three-Dimensional AOA-Cross Geometric Center Localization Methods via Multi-UAV Network Open
The angle of arrival (AOA) is widely used to locate a wireless signal emitter in unmanned aerial vehicle (UAV) localization. Compared with received signal strength (RSS) and time of arrival (TOA), AOA has higher accuracy and is not sensiti…
View article: MCRformer: Morphological Constraint Reticular Transformer for 3D Medical Image Segmentation
MCRformer: Morphological Constraint Reticular Transformer for 3D Medical Image Segmentation Open
Medical image segmentation is essential in medical image analysis since it can provide reliable assistance in computer-aided clinical diagnosis, treatment planning, and intervention. Although deep learning algorithms based on CNNs and Tran…
View article: Joint Beamforming and Phase Shift Design for Hybrid-IRS-and-UAV-aided Directional Modulation Network
Joint Beamforming and Phase Shift Design for Hybrid-IRS-and-UAV-aided Directional Modulation Network Open
Recently, intelligent reflecting surface (IRS) and unmanned aerial vehicle (UAV) have been introduced into wireless communication systems to enhance the performance of air-ground transmission. To make a good balance between performance, co…
View article: Beamforming Design for RIS-Aided AF Relay Networks
Beamforming Design for RIS-Aided AF Relay Networks Open
Since reconfigurable intelligent surface (RIS) is considered to be a passive reflector for rate performance enhancement, a RIS-aided amplify-and-forward (AF) relay network is presented. By jointly optimizing the beamforming matrix at AF re…
View article: Threshold-programmable loss-of-signal detection circuit with temperature compensation
Threshold-programmable loss-of-signal detection circuit with temperature compensation Open
It is a challenge to implement a loss-of-signal (LOS) circuit with a wide threshold voltage range that is insensitive to temperature. This paper presents a new wide-range threshold-programmable LOS detector with full temperature compensati…
View article: Two Efficient Beamforming Methods for Hybrid IRS-aided AF Relay Wireless Networks
Two Efficient Beamforming Methods for Hybrid IRS-aided AF Relay Wireless Networks Open
Due to the double fading effect caused by conventional passive intelligent reflecting surface (IRS), the signal via the reflection link is weak. To enhance the received signal, active elements with the ability to amplify the reflected sign…
View article: Joint Beamforming and Phase Shift Design for Hybrid-IRS-aided Directional Modulation Network
Joint Beamforming and Phase Shift Design for Hybrid-IRS-aided Directional Modulation Network Open
To make a good balance between performance, cost, and power consumption, a hybrid intelligent reflecting surface (IRS)-aided directional modulation (DM) network is investigated in this paper, where the hybrid IRS consists of passive and ac…
View article: Study on wall-slipping mechanism of nano-injection polymer under the constant temperature fields
Study on wall-slipping mechanism of nano-injection polymer under the constant temperature fields Open
Polyphenylene sulfide (PPS) and copper (Cu) were used as the polymer and substrate material to simulate the nano-injection molding process by molecular dynamics method. The results show that the PPS chain obeys Einstein’s diffusion law in …