Wu Chen
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View article: Refined Fuzzy-Control-Based VSG Control Strategy for Flexible Interconnection Devices in Distribution Grid
Refined Fuzzy-Control-Based VSG Control Strategy for Flexible Interconnection Devices in Distribution Grid Open
In this paper, virtual synchronous generator (VSG) technology is innovatively introduced into the distributor-unified power flow controller (D-UPFC) control to simulate the power generation characteristics of the synchronous generator. Con…
View article: Analyzing the Relationship Between Built-Environment Factors and Safety Threat Reports in Cracow, Poland
Analyzing the Relationship Between Built-Environment Factors and Safety Threat Reports in Cracow, Poland Open
With the acceleration of urbanization, the coupling relationship between the built environment and urban safety hazards has become increasingly prominent. Irrational spatial structures and resource allocations may aggravate safety hazards …
View article: Ionospheric nonlinear interpolation model for Mid- and Low-latitude network RTK during solar maxima
Ionospheric nonlinear interpolation model for Mid- and Low-latitude network RTK during solar maxima Open
As the Sun approaches the peak of its 25th activity cycle, intensified ionospheric spatial gradients near the equatorial ionization anomaly (EIA) crest pose critical challenges to GNSS positioning accuracy, particularly in low-latitude reg…
View article: The Manufacturers’ Adoption of Green Manufacturing Under the Government’s Green Subsidy
The Manufacturers’ Adoption of Green Manufacturing Under the Government’s Green Subsidy Open
As environmental degradation intensifies, governments increasingly subsidize green manufacturing to promote sustainability. This study develops a game-theoretic model of two competing supply chains, comprising original equipment manufactur…
View article: Agentic Context Engineering: Evolving Contexts for Self-Improving Language Models
Agentic Context Engineering: Evolving Contexts for Self-Improving Language Models Open
Large language model (LLM) applications such as agents and domain-specific reasoning increasingly rely on context adaptation -- modifying inputs with instructions, strategies, or evidence, rather than weight updates. Prior approaches impro…
View article: An improved track-before-detect method for moving target detection using GNSS reflected signals
An improved track-before-detect method for moving target detection using GNSS reflected signals Open
Global Navigation Satellite System (GNSS) reflected signals have been used to detect moving targets through long-time integration processing. However, mismatches arise between the target’s actual motion and the assumed motion model over a …
View article: Modeling of X-ray pulse propagation in beamline systems using a 6D phase space ray-tracing method
Modeling of X-ray pulse propagation in beamline systems using a 6D phase space ray-tracing method Open
With the rapid development of X-ray free-electron lasers (XFELs) that can generate ultrashort X-ray pulses with a duration range from attoseconds to femtoseconds, the study of ultrashort XFEL pulse propagation in beamline systems is increa…
View article: Improving GNSS precise point positioning with tropospheric constraints from data-driven numerical weather prediction model
Improving GNSS precise point positioning with tropospheric constraints from data-driven numerical weather prediction model Open
Accurate priori tropospheric knowledge is advantageous for Global Navigation Satellite System (GNSS) precise point positioning (PPP), which significantly influences both convergence time and the accuracy of tropospheric delay estimations. …
View article: Construction of high-yielding edeine strains and an initial exploration of their control efficacy against crop pathogens
Construction of high-yielding edeine strains and an initial exploration of their control efficacy against crop pathogens Open
Background Edeine, a non-ribosomal antibiotic produced by Brevibacillus brevis X23, has a broad-spectrum antimicrobial activity against plant pathogens, but its low yield in wild-type strains limits its potential for agricultural applicati…
View article: Image enhancement network based on fiber topology-preserving multi-module fusion for neuron reconstruction
Image enhancement network based on fiber topology-preserving multi-module fusion for neuron reconstruction Open
The rapid development of optical labeling and imaging technologies has enabled scientists to capture three-dimensional images of mammalian brains at the single-neuron level. However, it has also brought about numerous technical challenges.…
View article: PML1-Mediated Feedforward Loop Through PI3K and MAPK Axes Drives Endocrine Resistance
PML1-Mediated Feedforward Loop Through PI3K and MAPK Axes Drives Endocrine Resistance Open
Treatment of estrogen receptor-positive (ER+) breast cancer is significantly hindered by endocrine resistance. We identified PML1 as a key therapeutic entity that can be targeted to overcome resistance. Endocrine-resistant breast cancer ce…
View article: Technical design of high-resolution monochromator in S<sup>3</sup>FEL
Technical design of high-resolution monochromator in S<sup>3</sup>FEL Open
This paper presents the design and analysis of a high-resolution monochromator for the Shenzhen Superconducting Soft-X-ray Free Electron Laser (S 3 FEL), optimized for a working wavelength range of 1 to 3 nm. The monochromator’s physical p…
View article: How to Backdoor the Knowledge Distillation
How to Backdoor the Knowledge Distillation Open
Knowledge distillation has become a cornerstone in modern machine learning systems, celebrated for its ability to transfer knowledge from a large, complex teacher model to a more efficient student model. Traditionally, this process is rega…
View article: UniFlowRestore: A General Video Restoration Framework via Flow Matching and Prompt Guidance
UniFlowRestore: A General Video Restoration Framework via Flow Matching and Prompt Guidance Open
Video imaging is often affected by complex degradations such as blur, noise, and compression artifacts. Traditional restoration methods follow a "single-task single-model" paradigm, resulting in poor generalization and high computational c…
View article: Learning Verified Safe Neural Network Controllers for Multi-Agent Path Finding
Learning Verified Safe Neural Network Controllers for Multi-Agent Path Finding Open
Multi-agent path finding (MAPF) is a safety-critical scenario where the goal is to secure collision-free trajectories from initial to desired locations. However, due to system complexity and uncertainty, integrating learning-based controll…
View article: Design of a time-delay-compensated monochromator for the ARPES endstation at S<sup>3</sup>FEL
Design of a time-delay-compensated monochromator for the ARPES endstation at S<sup>3</sup>FEL Open
The preliminary design and expected performance for the Angle-Resolved Photoemission Spectroscopy (ARPES) branchline at Shenzhen Superconducting Soft X-ray Free Electron Laser (S 3 FEL) is presented. A time-delay-compensated monochromator …
View article: Spatiotemporal inhomogeneity of accuracy degradation in AI weather forecast foundation models: A GNSS perspective
Spatiotemporal inhomogeneity of accuracy degradation in AI weather forecast foundation models: A GNSS perspective Open
The artificial intelligence (AI) weather forecast foundation models can infer and generate precise global atmospheric state forecasts on the user’s device and with speed over 10,000 times faster than the operational Integrated Forecasting …
View article: Range estimation method of LEO communication opportunity signals for alternative PNT&#160;
Range estimation method of LEO communication opportunity signals for alternative PNT  Open
Positioning, Navigation, and Timing (PNT) services have delivered significant benefits to modern society. Currently, much of our PNT needs are fulfilled by Global Navigation Satellite Systems (GNSS). However, GNSS is facing a series of cha…
View article: LLMs Know What to Drop: Self-Attention Guided KV Cache Eviction for Efficient Long-Context Inference
LLMs Know What to Drop: Self-Attention Guided KV Cache Eviction for Efficient Long-Context Inference Open
Efficient long-context inference is critical as large language models (LLMs) adopt context windows of ranging from 128K to 1M tokens. However, the growing key-value (KV) cache and the high computational complexity of attention create signi…
View article: Evaluation and analysis of the precipitable water vapor in Inner Mongolia of China
Evaluation and analysis of the precipitable water vapor in Inner Mongolia of China Open
The Inner Mongolia Autonomous Region is an ecological protective screen in the northern part of China. The precipitable water vapor (PWV) products with high precision and spatiotemporal resolution are critical for climate research in this …
View article: Real-Time High-Resolution Global PWV Retrieval Based on Weather Forecast Foundation Models and Cross-Validation With Radiosonde, GNSS, and ERA5
Real-Time High-Resolution Global PWV Retrieval Based on Weather Forecast Foundation Models and Cross-Validation With Radiosonde, GNSS, and ERA5 Open
High-quality precipitable water vapor (PWV) plays a vital role in climate change and weather prediction studies. This research introduces a novel scheme for retrieving high-resolution surface-domain PWV with real-time and forecasting capab…
View article: Estimation of Signal Distortion Bias Using Geometry-Free Linear Combinations
Estimation of Signal Distortion Bias Using Geometry-Free Linear Combinations Open
Signal distortion bias (SDB) in Global Navigation Satellite System (GNSS) data processing, defined as the time difference between the distorted chip and the ideal rectangular chip, leads to systematic biases in pseudoranges, affecting sate…