Zhou Chang
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View article: Vision-Guided Maritime UAV Rescue System with Optimized GPS Path Planning and Dual-Target Tracking
Vision-Guided Maritime UAV Rescue System with Optimized GPS Path Planning and Dual-Target Tracking Open
With the global increase in maritime activities, the frequency of maritime accidents has risen, underscoring the urgent need for faster and more efficient search and rescue (SAR) solutions. This study presents an intelligent unmanned aeria…
View article: Data-driven investigation and multi-objective optimization design of alkali-activated concrete
Data-driven investigation and multi-objective optimization design of alkali-activated concrete Open
This study employs a Bayesian-optimized XGBoost algorithm to develop machine-learning models for predicting the 28-day cubic compressive strength, porosity, and CO2 emission of alkali-activated concrete. Utilizing a dataset of 483 samples …
View article: IW-Bench: Evaluating Large Multimodal Models for Converting Image-to-Web
IW-Bench: Evaluating Large Multimodal Models for Converting Image-to-Web Open
Recently advancements in large multimodal models have led to significant strides in image comprehension capabilities. Despite these advancements, there is a lack of the robust benchmark specifically for assessing the Image-to-Web conversio…
View article: Economic tolerance design of the P2 raceway based on the quasi-static model of aerospace ball bearings
Economic tolerance design of the P2 raceway based on the quasi-static model of aerospace ball bearings Open
This study focused on designing the raceway tolerance of high-precision rolling bearings. After the tolerance error equivalence relationship is defined, the application of the rolling bearing error equalization effect in tolerance design i…
View article: Construction of Pd–TiO<sub><i>x</i></sub> interfaces for selective hydrodeoxygenation of CO bonds in vanillin by supporting Pd nanoparticles on ETS-10 zeolite
Construction of Pd–TiO<sub><i>x</i></sub> interfaces for selective hydrodeoxygenation of CO bonds in vanillin by supporting Pd nanoparticles on ETS-10 zeolite Open
Pd nanoparticles on ETS-10 zeolite with abundant Pd–TiO x interfaces are very active for the selective hydrodeoxygenation of CO bonds in vanillin.
View article: Bearing Inner Ring Raceway Low-Temperature Aerosol Cooling Lubrication Grinding
Bearing Inner Ring Raceway Low-Temperature Aerosol Cooling Lubrication Grinding Open
A low-temperature aerosol cooling and lubrication grinding test bench was built to evaluate the cooling and lubrication performance of the low-temperature aerosol. The mechanism of grinding residual stresses in the inner ring raceway under…
View article: Economic tolerance design of the P2 raceway based on the quasi-static model of ball bearings
Economic tolerance design of the P2 raceway based on the quasi-static model of ball bearings Open
This study focused on designing the raceway tolerance of high-precision roller bearings. First, a five-degree of freedom quasi-static model was established for angular contact ball bearings. The waviness was included in the manufacturing e…
View article: Design and Development of a High-Speed Precision Internal Grinding Machine and the Associated Grinding Processes
Design and Development of a High-Speed Precision Internal Grinding Machine and the Associated Grinding Processes Open
In order to meet the P2-grade bearing grinding requirements, we designed a high-speed internal grinding machine to be used for grinding bearing raceways and inner circles. The machine has a T-type layout and a four-axis numerical control l…
View article: A Modified Thermal Model of Internal Grinding
A Modified Thermal Model of Internal Grinding Open
In the present study, an innovative method is proposed to improve the accuracy of thermal models of the grinding process. To this end, a set of orthogonal experiments are carried out to calculate heat flux using infrared temperature measur…
View article: Investigation into the Influence of Parallel Offset Wear on Stirling Engine Piston Rod Oil-Free Lubrication Seal
Investigation into the Influence of Parallel Offset Wear on Stirling Engine Piston Rod Oil-Free Lubrication Seal Open
The oil-free lubrication seal of a piston rod plays an important role in the application of a Stirling engine. Parallel offset in a piston rod ruins the symmetry of the seal and affects the sealing performance when the seal is worn. In thi…
View article: Study on scatter of surface integrity of bearing raceway grinding
Study on scatter of surface integrity of bearing raceway grinding Open
Taking the discrete degree of bearing raceway grinding surface integrity as the research object, the orthogonal test based on the wheel speed, workpiece speed and grinding depth is designed. The residual stress, retained austenite, hardnes…
View article: Damage assessment of the rolling bearing based on the rigid-flexible coupling multi-body vibration model
Damage assessment of the rolling bearing based on the rigid-flexible coupling multi-body vibration model Open
In the present study, local defects in deep groove ball bearings are studied as forward and inverse problems. To this end, the separation-integration method is applied for modeling the forward problem. It is assumed that the inner race of …
View article: A High-Speed Precision Bearing Internal Grinding Machine and Grinding Process
A High-Speed Precision Bearing Internal Grinding Machine and Grinding Process Open
In order to meet the requirement of grade P2 bearing grinding, we designed a high-speed internal grinding machine used for bearing raceway and inner circle grinding. The machine adopts T-type layout and 4-axis NC linkage. It is supported b…
View article: Electrolyte membranes for intermediate temperature proton exchange membrane fuel cell
Electrolyte membranes for intermediate temperature proton exchange membrane fuel cell Open
An overview of intermediate temperature (100–300 °C) proton conducting membrane electrolyte materials for fuel cells is presented in this review. The fuel cells operated in intermediate temperature range could enhance the electrochemical k…
View article: Improving electroluminescent efficiency and ultraviolet detectivity of optoelectronic integrated devices by doping a thermally activated delayed fluorescent material in an aggregation-induced emission material as an active layer
Improving electroluminescent efficiency and ultraviolet detectivity of optoelectronic integrated devices by doping a thermally activated delayed fluorescent material in an aggregation-induced emission material as an active layer Open
Organic integrated devices (OIDs) with ultraviolet (UV) photodetective and electroluminescent (EL) properties were fabricated using an aggregation-induced emission (AIE) featured material of 1,1,2,2-Tetraphenylethene (TPE) as host and a th…
View article: Low-Temperature Preparation of Tungsten Oxide Anode Buffer Layer via Ultrasonic Spray Pyrolysis Method for Large-Area Organic Solar Cells
Low-Temperature Preparation of Tungsten Oxide Anode Buffer Layer via Ultrasonic Spray Pyrolysis Method for Large-Area Organic Solar Cells Open
Tungsten oxide (WO3) is prepared by a low-temperature ultrasonic spray pyrolysis method in air atmosphere, and it is used as an anode buffer layer (ABL) for organic solar cells (OSCs). The properties of the WO3 transition metal oxide mater…