Yadong Li
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View article: Enhanced Photocatalytic Water Splitting via Chiral Cadmium Zinc Sulfide Nanostructures: Spin Polarization Modulation for Efficient Charge Carrier Dynamics
Enhanced Photocatalytic Water Splitting via Chiral Cadmium Zinc Sulfide Nanostructures: Spin Polarization Modulation for Efficient Charge Carrier Dynamics Open
Regulating electron spin polarization through intrinsic material structures represents a promising strategy to optimize charge carrier kinetics in photocatalytic systems. Herein, we demonstrate a novel approach to enhance overall water spl…
View article: NGRPO: Negative-enhanced Group Relative Policy Optimization
NGRPO: Negative-enhanced Group Relative Policy Optimization Open
RLVR has enhanced the reasoning capabilities of Large Language Models (LLMs) across various tasks. However, GRPO, a representative RLVR algorithm, suffers from a critical limitation: when all responses within a group are either entirely co…
View article: Megrez2 Technical Report
Megrez2 Technical Report Open
We present Megrez2, a novel lightweight and high-performance language model architecture optimized for device native deployment. Megrez2 introduces a novel cross-layer expert sharing mechanism, which significantly reduces total parameter c…
View article: Tea Disease Detection Method Based on Improved YOLOv8 in Complex Background
Tea Disease Detection Method Based on Improved YOLOv8 in Complex Background Open
Tea disease detection is of great significance to the tea industry. In order to solve the problems such as mutual occlusion of leaves, light disturbance, and small lesion area under complex background, YOLO-SSM, a tea disease detection mod…
View article: Conformation‐Dependent Dynamics of Polymer Capture and Translocation through Solid‐State Nanopores
Conformation‐Dependent Dynamics of Polymer Capture and Translocation through Solid‐State Nanopores Open
Polymer translocation through solid‐state nanopores has attracted widespread attention in many biological processes. However, the dynamics of capture and translocation through nanopores are highly correlated with polymer conformation. Usin…
View article: Impact of Sitting Time and Vigorous Leisure-Time Activity on Infertility in Reproductive age U.S. Women
Impact of Sitting Time and Vigorous Leisure-Time Activity on Infertility in Reproductive age U.S. Women Open
Objective Our aim was to explore the relationship between daily sitting time and infertility in U.S. women of reproductive age, and to assess how this relationship is influenced by vigorous leisure-time physical activity. Methods We analyz…
View article: Precise Construction of Asymmetrically Coordinated PtCuZn Trimetallic Atom Catalysts for Efficient Oxygen Reduction
Precise Construction of Asymmetrically Coordinated PtCuZn Trimetallic Atom Catalysts for Efficient Oxygen Reduction Open
With advancements in the study of catalysts at atomic sites, the unique and predictable characteristics of atomic models have enabled the exploration of catalysts with monoatomic, diatomic, and polymetallic centers. In this study, a platin…
View article: NiFe LDH Hollow Nanocages Confined Ru Single Atoms for Remarkable Oxygen Evolution Reaction
NiFe LDH Hollow Nanocages Confined Ru Single Atoms for Remarkable Oxygen Evolution Reaction Open
Electrocatalysts with a hollow nanocage structure and single atoms (SAs) incorporated into layered double hydroxide (LDH) are highly significant for enhancing the efficiency of electrochemical water splitting. In this study, a highly effic…
View article: Surface effects on heterogeneous nucleation of metal at the atomic scale
Surface effects on heterogeneous nucleation of metal at the atomic scale Open
Agglomerationand crystallization of atoms are the key processes in nucleation. For heterogeneous nucleation, investigating the influence of the substrate surface on agglomeration and crystallization, and then understanding the related mech…
View article: Gd‐doped Pt<sub>3</sub>Co Nanoparticles Embedded in Hollow Mesoporous Carbon Derived From Space‐Confined Polymerization of Indene Boosting Oxygen Reduction Reaction
Gd‐doped Pt<sub>3</sub>Co Nanoparticles Embedded in Hollow Mesoporous Carbon Derived From Space‐Confined Polymerization of Indene Boosting Oxygen Reduction Reaction Open
Developing suitable carbon supports and efficient Pt‐based nanoparticles for the oxygen reduction reaction (ORR) is crucial for accelerating the commercialization of proton‐exchange membrane fuel cells (PEMFCs). In this study, indene‐deriv…
View article: Megrez-Omni Technical Report
Megrez-Omni Technical Report Open
In this work, we present the Megrez models, comprising a language model (Megrez-3B-Instruct) and a multimodal model (Megrez-3B-Omni). These models are designed to deliver fast inference, compactness, and robust edge-side intelligence throu…
View article: Experimental Study on the Flexural Performance of Geogrid-Reinforced Foamed Lightweight Soil
Experimental Study on the Flexural Performance of Geogrid-Reinforced Foamed Lightweight Soil Open
The flexural behavior of geogrid-reinforced foamed lightweight soil (GRFL soil) is investigated in this study using unconfined compressive and four-point bending tests. The effects of wet density and reinforcement layers on flexural perfor…
View article: Autonomous Airport Runway Recognition for Fixed-Wing Aircraft Based on YOLOv8
Autonomous Airport Runway Recognition for Fixed-Wing Aircraft Based on YOLOv8 Open
In the scenario of autonomous landing for fixed-wing aircraft using vision as the primary sensor, there is a demand for airport runway recognition. Therefore, this paper introduces three modules—Wavelet Transform Convolutional Layer (WTCon…
View article: Modulation of RuO<sub>2</sub> Nanocrystals with Facile Annealing Method for Enhancing the Electrocatalytic Activity on Overall Water Splitting in Acid Solution
Modulation of RuO<sub>2</sub> Nanocrystals with Facile Annealing Method for Enhancing the Electrocatalytic Activity on Overall Water Splitting in Acid Solution Open
RuO 2 ‐based materials are considered an important kind of electrocatalysts on oxygen evolution reaction and water electrolysis, but the reported discrepancies of activities exist among RuO 2 electrocatalysts prepared via different process…
View article: Atom-pair engineering of single-atom nanozyme for boosting peroxidase-like activity
Atom-pair engineering of single-atom nanozyme for boosting peroxidase-like activity Open
Constructing atom-pair engineering and improving the activity of metal single-atom nanozyme (SAzyme) is significant but challenging. Herein, we design the atom-pair engineering of Zn-SA/CNCl SAzyme by simultaneously constructing Zn-N4 site…
View article: Transcriptional and Metabolic Mechanism of Carbon Dots Enhancing Rice Growth and Resistance by Promoting Root
Transcriptional and Metabolic Mechanism of Carbon Dots Enhancing Rice Growth and Resistance by Promoting Root Open
Increasing climate change and pollutant discharge induce constant challenges to crops, while crops are vulnerable to environmental and pollutant stresses. In this study, a carbon dots (CDs) was developed that significantly increased rice s…
View article: Enhancing radiation-resistance and peroxidase-like activity of single-atom copper nanozyme via local coordination manipulation
Enhancing radiation-resistance and peroxidase-like activity of single-atom copper nanozyme via local coordination manipulation Open
The inactivation of natural enzymes by radiation poses a great challenge to their applications for radiotherapy. Single-atom nanozymes (SAzymes) with high structural stability under such extreme conditions become a promising candidate for …
View article: Phlogopite 40Ar/39Ar Geochronology for Guodian Skarn Fe Deposit in Qihe–Yucheng District, Luxi Block, North China Craton: A Link between Craton Destruction and Fe Mineralization
Phlogopite 40Ar/39Ar Geochronology for Guodian Skarn Fe Deposit in Qihe–Yucheng District, Luxi Block, North China Craton: A Link between Craton Destruction and Fe Mineralization Open
The Guodian Fe deposit is representative of the newly discovered Qihe–Yucheng high-grade Fe skarn ore cluster, Luxi Block, eastern North China Craton (NCC). The age of the Pandian Fe deposit remains elusive, which hinders the understanding…
View article: Overview of recent experimental results on the EAST Tokamak
Overview of recent experimental results on the EAST Tokamak Open
Since the last IAEA-FEC in 2021, significant progress on the development of long pulse steady state scenario and its related key physics and technologies have been achieved, including the reproducible 403 s long-pulse steady-state H-mode p…
View article: Heterogeneous Rhodium Single-Atom-Site Catalyst Enables Chemoselective Carbene N–H Bond Insertion
Heterogeneous Rhodium Single-Atom-Site Catalyst Enables Chemoselective Carbene N–H Bond Insertion Open
Transition-metal-catalyzed carbene insertion reactions of a nitrogen-hydrogen bond have emerged as robust and versatile methods for the construction of C-N bonds. While significant progress of homogeneous catalytic metal carbene N-H insert…
View article: Fast Fabrication Nanopores on a PMMA Membrane by a Local High Electric Field Controlled Breakdown
Fast Fabrication Nanopores on a PMMA Membrane by a Local High Electric Field Controlled Breakdown Open
The sensitivity and accuracy of nanopore sensors are severely hindered by the high noise associated with solid-state nanopores. To mitigate this issue, the deposition of organic polymer materials onto silicon nitride (SiNx) membranes has b…
View article: Additive manufacturing-induced anisotropy in damping performance of a dual-phase high-entropy alloy
Additive manufacturing-induced anisotropy in damping performance of a dual-phase high-entropy alloy Open
Additive manufacturing (AM) can endow materials with specific microstructures, inducing anisotropy. In this study, we employed the AM technique to fabricate a dual-phase high-entropy alloy (HEA) and evaluated the damping properties of this…