Article
Engineering, Electrical & Electronic
Jialuo Liu, Anzi Ding, Quanliang Cao
Summary: Magnetic levitation (MagLev) is an emerging technology for density measurement and analysis. This study proposes a new cylindrical MagLev configuration to simplify the analysis of levitation behavior. Theoretical models and numerical simulations are used to demonstrate the performance of the cylindrical MagLev for density measurement.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Chemistry, Analytical
Chenxin Lyu, Daofan Tang, Chengqian Zhang, Jun Xie, Qingyan Zhang, Jing Nie, Yong He, Jianzhong Fu, Jingdai Wang, Peng Zhao
Summary: This paper proposes an original non-contact manipulation and measurement method by magnetic levitation for cells. The method allows cells to aggregate and levitate in a paramagnetic medium using two ring magnets with like poles facing each other. The mathematical model was established to analyze the distributions of magnetic fields and movements of cells. The results demonstrate the potential of the magnetic levitation method for three-dimensional culture and rapid measurement of cells.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Engineering, Mechanical
Yuhan Jia, Peng Zhao, Jun Xie, Xuechun Zhang, Hongwei Zhou, Jianzhong Fu
Summary: This paper introduces a single-electromagnet levitation device for measuring densities and detecting internal defects of antimagnetic materials. Compared to traditional magnetic levitation devices, this adjustable device has a wider measuring range and strong magnetic field, allowing for accurate density measurement and defect detection of high-density materials like glass and aluminum alloy.
FRONTIERS OF MECHANICAL ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Meng Suo, Dong Zhang, Yan Yang
Summary: An improved full waveform inversion algorithm is proposed in this paper for quantitative measurement of bone density and early diagnosis of osteoporosis. By using various strategies and testing different inversion settings, the method shows superior results in detecting small changes in bones and meeting high precision requirements.
Article
Chemistry, Multidisciplinary
Samuel E. Root, Rui Gao, Christoffer K. Abrahamsson, Mohamad S. Kodaimati, Shencheng Ge, George M. Whitesides
Summary: This article introduces a new technique, magneto-Archimedes levitation (MagLev), for estimating the density of hydrophobic polymer thin films, and validates its reliability in different thickness ranges. By comparing density measurements of various polymer films with their bulk values, apparent changes in film density were observed as thickness varied, providing a new approach for studying polymer films.
Article
Materials Science, Characterization & Testing
Peng Zhao, Yuhan Jia, Jun Xie, Tingyu Wang, Chenqian Zhang, Jianzhong Fu
Summary: A novel MagLev device using magnet arrays is proposed to replace the whole permanent magnet, providing a promising method for levitation of large-scale samples. The simulation results can obtain the equation between density and levitation height, showcasing the potential for accurate measurement of various polymer densities.
Review
Environmental Sciences
Seyed Rohallah Mousavibaygei, Amir Bisadi, Fariba ZareSakhvidi
Summary: This study systematically reviewed the evidence on the association between exposure to air pollution and osteoporosis-related outcomes. The findings suggest that PM2.5, PM10, and nitrogen dioxide may be associated with decreased bone density, osteoporotic fractures, and osteoporosis. However, due to limitations in the number of studies, heterogeneity, and publication bias, caution should be exercised in interpreting the results.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Materials Science, Multidisciplinary
Binbin Liu, Zhen Yang, Li-e Qiang, Peng Xu, Xiaodong Peng, Ziren Luo, Yuzhu Zhang, Wenlin Tang
Summary: Magnetic disturbance is a significant source of noise in high-precision inertial sensors used for spaceborne gravitational wave detection missions. This study presents an improved measurement scheme using a torsion pendulum to characterize the magnetic properties of a test mass. Real-time monitoring of the magnetic field is achieved using four magnetometers, and a magnetic field correction method is proposed to enhance the calculation precision.
RESULTS IN PHYSICS
(2023)
Review
Biology
Fabio Grizzi, Mohamed A. A. A. Hegazi, Matteo Zanoni, Paolo Vota, Giovanni Toia, Maria Chiara Clementi, Cinzia Mazzieri, Maurizio Chiriva-Internati, Gianluigi Taverna
Summary: Angiogenesis plays a pivotal role in prostate cancer, but evaluating angiogenic activity remains challenging. This review discusses various angiogenic mechanisms in prostate cancer and their potential relevance for predictive and prognostic evaluations.
Article
Optics
Yusong Liu, Shixin Wang, Yue Qin, Hao Guo, Zhonghao Li, Yanjun Li, Jun Tang, Zongmin Ma, Jun Liu
Summary: A novel method using nitrogen-vacancy (NV) centers in diamond as sensors to detect the motion of magnetic levitation structure has been proposed, enabling high-precision measurement. This approach shows high sensitivity and resolution, allowing real-time recording of dynamic movement of the magnetic levitation system.
LASER PHYSICS LETTERS
(2021)
Article
Engineering, Multidisciplinary
Hao Wu, Shuting Wang, Yuanlong Xie, Suping Chang, Yanqing Zhao
Summary: The paper introduces a new aerostatic bearing stylus sensor (ABSS) for surface measurement, which inherits stability and large-scale measuring range while avoiding structural nonlinear errors of conventional stylus profilometry. Analysis of bearing capacity and radial dynamic characteristics ensures scanning stability and rapid response of the stylus. Template experiments verify the natural frequency and critical velocity of the ABSS, with surface topographies reconstruction validating its repeatability and accuracy compared to a commercial conventional stylus profilometry.
Review
Chemistry, Analytical
Jun Xie, Peng Zhao, Chengqian Zhang, Jianzhong Fu, Lih-Sheng Turng
Summary: Magnetic levitation is an accurate and sensitive density testing method with potential applications in various fields. Research has focused on developing the theory and applications of MagLev, especially in the realm of polymers.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Applied
Aiswarya Purushothaman, K. S. Teena Rose, Jesni M. Jacob, Rajapandian Varatharaj, K. Shashikala, Deepa Janardanan
Summary: The research found that hispolon and polyhydroxycurcumin are good radical scavengers, while halfcurcumin exhibits similar activity to curcumin. Experimental results show that the absorption properties of these antioxidants are in good agreement with expectations.
Article
Automation & Control Systems
Yongzhi Jing, Xianchao Ma, Zhifei Zhang, Yifei Li, Jie Kong
Summary: This paper proposes two novel measurement methods for levitation gap based on computer vision. The first method measures the levitation gap by calculating the image pixel area of the region of interest, with low measurement error and high processing speed. The second method designs a model named SelfConvNet based on convolutional neural network, which has high measurement accuracy and strong anti-interference ability. Experimental results demonstrate the effectiveness and reliability of these two methods.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Muneo Futamura, Sho Ohata
Summary: Transport systems based on superconducting magnetic levitation often risk derailment due to backward tilting. This study explores alternative rail magnet arrangements to induce a forward bank angle tilt, aiming to enhance the stability of levitation transport systems. The findings can be utilized to improve the safety of various transportation applications relying on magnetic levitation technology.
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2022)
Article
Polymer Science
Zhengyang Dong, Peng Zhao, Jianguo Zheng, Kaipeng Ji, Yuhong Chen, Jianzhong Fu
Summary: The proposed IGAO method utilizes batch information for self-learning without establishing a large number of experimental models, with fast convergence, 25% fewer steps, good stability, and is suitable for parameter optimization in batch processes.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Characterization & Testing
Peng Zhao, Yuhan Jia, Jun Xie, Tingyu Wang, Chenqian Zhang, Jianzhong Fu
Summary: A novel MagLev device using magnet arrays is proposed to replace the whole permanent magnet, providing a promising method for levitation of large-scale samples. The simulation results can obtain the equation between density and levitation height, showcasing the potential for accurate measurement of various polymer densities.
Article
Engineering, Electrical & Electronic
Xuechun Zhang, Hao Hu, Daofan Tang, Chengqian Zhang, Jianzhong Fu, Peng Zhao
Summary: A flexible tactile sensor based on the magnetic field was proposed in this study, which can linearly detect both force and position and perform quick tests in variable patterns. By introducing folding magnetization technology, higher magnetic flux density can be achieved and different sensor designs can be implemented.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Polymer Science
Ruoxiang Gao, Jun Xie, Jinghui Yang, Chaojie Zhuo, Jianzhong Fu, Peng Zhao
Summary: By conducting single factor experiments, the impact of raster angle and infill density on PEEK parts was determined, while orthogonal experiments were used to analyze the effects of printing speed, nozzle temperature, and other parameters. Through optimization, significant reductions in warpage deformation and improvements in tensile strength were achieved, supporting the development of FDM for PEEK.
Review
Chemistry, Multidisciplinary
Chenxin Lyu, Peng Zhao, Jun Xie, Shuyuan Dong, Jiawei Liu, Chengchen Rao, Jianzhong Fu
Summary: Nanofibrous membrane, especially those fabricated by electrospinning, is considered as an effective filter medium for particulate matter in air purification. These membranes exhibit good PM2.5 filtration performance and multi-functions, making them suitable for various applications against PM2.5 pollution.
Article
Engineering, Environmental
Chengqian Zhang, Daofan Tang, Mingyi Cao, Fu Gu, Xiangyu Cai, Xuetao Liu, Zhaoyu Cheng, Philip Hall, Jianzhong Fu, Peng Zhao
Summary: The MagLev configuration proposed in this study can separate substances with specific densities over 5.00 g/cm(3), showing great potential in heavy metal recycling by effectively separating different metal materials with high recovery rates and purities.
RESOURCES CONSERVATION AND RECYCLING
(2021)
Article
Materials Science, Composites
Ruoxiang Gao, Hao Chen, Zhezai Hu, Xuewen Cheng, Shiquan Gao, Shaohua Zhou, Peng Zhao
Summary: This study presents a novel method for predicting product strength by analyzing weld line and fiber orientation in injection molding, and successfully applies it to the gate design of an aerospace product. The results indicate that this method has great potential for mold design, product structure design, and process optimization.
POLYMER COMPOSITES
(2022)
Article
Materials Science, Multidisciplinary
Jinghui Yang, Jun Xie, Kaipeng Ji, Xianghong Wang, Xiaolong Jiao, Zhinong Xu, Peng Zhao
Summary: Microcellular PEEK with a weight reduction of 49.6% was prepared by mold-opening microcellular injection molding (MOMIM). Incremental holding time and holding pressure could increase PEEK's density and promote the formation of dense cells, improving mechanical properties.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Engineering, Electrical & Electronic
Junye Huang, Peng Zhao, Chengqian Zhang, Jun Xie, Neng Xia, Jianzhong Fu
Summary: This article proposes a method to analyze the diamagnetic forces sustained by levitated pyrolytic graphite (PG) in order to investigate the mechanism of stable levitation. By dividing the PG disk into multiple regions, the resultant diamagnetic force can be determined, and the relationship between the size of the magnet and the disk and its ability of stable levitation is clarified.
IEEE TRANSACTIONS ON MAGNETICS
(2022)
Article
Engineering, Multidisciplinary
Chaojie Zhuo, Kaipeng Ji, Jun Xie, Xuewen Cheng, Xiaolong Jiao, Sheng Ye, Jianzhong Fu, Peng Zhao
Summary: This study proposes a non-intrusive ultrasonic measurement method based on minimum entropy blind deconvolution for measuring tie-bar stress in molding equipment. The results show that the method has high precision and low relative error. Compared to traditional methods, this approach does not require human intervention and helps achieve automation in stress measurement.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2022)
Article
Mathematics, Applied
Kaipeng Ji, Peng Zhao, Xiaowei Zhou, Yuhong Chen, Zhengyang Dong, Jianguo Zheng, Jianzhong Fu, Huamin Zhou
Summary: This paper proposes a novel initialization method, UPPSO, for particle swarm optimization (PSO), which improves optimization performance by uniformly distributing particle positions and velocities in the response space. When applied to parameter estimation, UPPSO outperforms other algorithms in obtaining optimal parameters and exhibits competitive computational performance.
APPLIED MATHEMATICS AND COMPUTATION
(2022)
Article
Polymer Science
Xuemei Li, Fan Liu, Jun Xie, Chengqian Zhang, Ruoxiang Gao, Chenxin Lyu, Peng Zhao
Summary: This study aims to reduce the metallic impurities of parts and improve the wet processes environment. The impurities distribution of injection molds was examined, showing even distribution. The influence of process parameters on metallic contamination was investigated through orthogonal experiment, with injection rate having the greatest impact. By optimizing the process, the smallest metallic contamination of 1.077 μg/m² for PFA pipe joints was achieved, reducing by 56.3% compared with previous results. This research suggests that adjusting parameters is a feasible and effective method to reduce contamination during injection molding, providing another idea for improving cleanliness in chip manufacturing.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Zhengchuan Guo, Jun Xie, Chengqian Zhang, Ying Zheng, Liang Jin, Jinghui Yang, Peng Zhao
Summary: In this study, a post-treatment method was applied to enhance the tensile strength of PEEK fibers, generating up to a 69% increase. Optical measurements, uniaxial tensile tests, differential scanning calorimetry, and two-dimensional-wide angle X-ray diffraction were used to quantitatively investigate the effects of post-treatment process parameters on the diameter shrinkage ratio, mechanical properties, and aggregated state structure of PEEK fibers. The findings revealed that the improved fiber orientation, resulting from increased post-treatment temperature and constant tensile force, was the main factor contributing to the significant increase in uniaxial tensile strength. Moreover, mathematical models were developed to describe the linear relationship between the diameter shrinkage ratio and post-treatment temperature, as well as the uniaxial tensile strength and constant tensile force. These insights offer valuable guidance for enhancing the strength and controlling the morphology and mechanical properties of PEEK fibers during production.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Zhengchuan Guo, Jun Xie, Jinghui Yang, Jianzhong Fu, Peng Zhao
Summary: Polyether ether ketone (PEEK), a high-performance polymer, is widely used as an ideal metal replacement. This study introduces a rapid mold temperature rising technology based on induction heating, which effectively meets the requirements of rapid temperature increase and maintenance for PEEK injection molding. The experimental results show that compared to traditional electric heating, the induction heating method significantly improves the surface quality and mechanical properties of PEEK products, and it also shows adaptability to longer holding times for micro-open microporous injection molding, expanding the possibilities for developing higher performance PEEK foam products.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Review
Optics
M. Munzer Alseed, Sajjad Rahmani Dabbagh, Peng Zhao, Oguzhan Ozcan, Savas Tasoglu
Summary: Magnetic levitation is a density-based technique that suspends objects using magnetic and gravitational forces. Recent advancements in portable smartphone-based MagLev setups have enabled applications in microparticle sorting, disease diagnosis, and other fields, making the technology more accessible and user-friendly.
ADVANCED OPTICAL TECHNOLOGIES
(2021)
Article
Engineering, Multidisciplinary
Sicheng Jiao, Shixiang Wang, Minge Gao, Min Xu
Summary: This paper presents a non-contact method of thickness measurement for thin-walled rotary shell parts based on a chromatic confocal sensor. The method involves using a flip method to obtain surface profiles from both sides of the workpiece, measuring the decentration and tilt errors of the workpiece using a centering system, establishing a unified reference coordinate system, reconstructing the external and internal surface profiles, and calculating the thickness. Experimental results show that the method can accurately measure the thickness of a sapphire spherical shell workpiece and is consistent with measurements of other materials.
Article
Engineering, Multidisciplinary
Rajeev Kumar, Sajal Agarwal, Sarika Pal, Alka Verma, Yogendra Kumar Prajapati
Summary: This study evaluated the performance of a CaF2-Ag-MXene-based surface plasmon resonance (SPR) sensor at different wavelengths. The results showed that the sensor achieved the maximum sensitivity at a wavelength of 532 nm, and higher sensitivities were obtained at shorter wavelengths at the expense of detection accuracy.
Article
Engineering, Multidisciplinary
Attilio Di Nisio, Gregorio Andria, Francesco Adamo, Daniel Lotano, Filippo Attivissimo
Summary: Capacitive sensing is a widely used technique for a variety of applications, including avionics. However, current industry standard Capacitive Level Sensors (CLSs) used in helicopters perform poorly in terms of sensitivity and dynamic characteristics. In this study, novel geometries were explored and three prototypes were built and tested. Experimental validation showed that the new design featuring a helicoidal slit along the external electrode of the cylindrical probe improved sensitivity, response time, and linearity.
Article
Engineering, Multidisciplinary
Kai Yang, Huiqin Wang, Ke Wang, Fengchen Chen
Summary: This paper proposes an effective measurement method for dynamic compaction construction based on time series model, which enables real-time monitoring and measurement of anomalies and important construction parameters through simulating motion state transformation and running time estimation.
Article
Engineering, Multidisciplinary
Hui Fu, Qinghua Song, Jixiang Gong, Liping Jiang, Zhanqiang Liu, Qiang Luan, Hongsheng Wang
Summary: An automatic detection and pixel-level quantification model based on joint Mask R-CNN and TransUNet is developed to accurately evaluate microcrack damage on the grinding surfaces of engineering ceramics. The model is effectively trained on actual micrograph image dataset using a joint training strategy. The proposed model achieves reliable automatic detection and fine segmentation of microcracks, and a skeleton-based quantification model is also proposed to provide comprehensive and precise measurements of microcrack size.
Review
Engineering, Multidisciplinary
Sang Yeob Kim, Da Yun Kwon, Arum Jang, Young K. Ju, Jong-Sub Lee, Seungkwan Hong
Summary: This paper reviews the categorization and applications of UAV sensors in forensic engineering, with a focus on geotechnical, structural, and water infrastructure fields. It discusses the advantages and disadvantages of sensors with different wavelengths and addresses the challenges of current UAV technology and recommendations for further research in forensic engineering.
Article
Engineering, Multidisciplinary
Anton Nunez-Seoane, Joaquin Martinez-Sanchez, Erik Rua, Pedro Arias
Summary: This article compares the use of Mobile Laser Scanners (MLS) and Aerial Laser Scanners (ALS) for digitizing the road environment and detecting road slopes. The study found that ALS data and its corresponding algorithm achieved better detection and delimitation results compared to MLS. Measuring the road from a terrestrial perspective negatively impacted the detection process, while an aerial perspective allowed for scanning of the entire slope structure.
Article
Engineering, Multidisciplinary
Nur Luqman Saleh, Aduwati Sali, Raja Syamsul Azmir Raja Abdullah, Sharifah M. Syed Ahmad, Jiun Terng Liew, Fazirulhisyam Hashim, Fairuz Abdullah, Nur Emileen Abdul Rashid
Summary: This study introduces an enhanced signal processing scheme for detecting mouth-click signals used by blind individuals. By utilizing additional band-pass filtering and other steps, the detection accuracy is improved. Experimental results using artificial signal data showed a 100% success rate in detecting obstacles. The emerging concepts in this research are expected to benefit radar and sonar system applications.
Article
Engineering, Multidisciplinary
Jiqiang Tang, Shengjie Qiu, Lu Zhang, Jinji Sun, Xinxiu Zhou
Summary: This paper studies the magnetic noise level of a compact high-performance magnetically shielded room (MSR) under different operational conditions and establishes a quantitative model for magnetic noise calculation. Verification experiments show the effectiveness of the proposed method.
Review
Engineering, Multidisciplinary
Krzysztof Bartnik, Marcin Koba, Mateusz Smietana
Summary: The demand for miniaturized sensors in the biomedical industry is increasing, and optical fiber sensors (OFSs) are gaining popularity due to their small size, flexibility, and biocompatibility. This study reviews various OFS designs tested in vivo and identifies future perspectives and challenges for OFS technology development from a user perspective.
Article
Engineering, Multidisciplinary
Yue Wang, Lei Zhou, Zihao Li, Jun Wang, Xuangou Wu, Xiangjun Wang, Lei Hu
Summary: This paper presents a 3-D reconstruction method for dynamic stereo vision of metal surface based on line structured light, overcoming the limitation of the measurement range of static stereo vision. The proposed method uses joint calibration and global optimization to accurately reconstruct the 3-D coordinates of the line structured light fringe, improving the reconstruction accuracy.
Article
Engineering, Multidisciplinary
Jaafar Alsalaet
Summary: Order tracking analysis is an effective tool for machinery fault diagnosis and operational modal analysis. This study presents a new formulation for the data equation of the second-generation Vold-Kalman filter, using separated cosine and sine kernels to minimize error and provide smoother envelopes. The proposed method achieves high accuracy even with small weighting factors.
Article
Engineering, Multidisciplinary
Tonglei Cao, Kechen Song, Likun Xu, Hu Feng, Yunhui Yan, Jingbo Guo
Summary: This study constructs a high-resolution dataset for surface defects in ceramic tiles and addresses the scale and quantity differences in defect distribution. An improved approach is proposed by introducing a content-aware feature recombination method and a dynamic attention mechanism. Experimental results demonstrate the superior accuracy and efficiency of the proposed method.
Article
Engineering, Multidisciplinary
Qinghong Fu, Yunxi Lou, Jianghui Deng, Xin Qiu, Xianhua Chen
Summary: Measurement and quantitative characterization of aging-induced gradient properties is crucial for accurate analysis and design of asphalt pavement. This research proposes the composite specimen method to obtain asphalt binders at different depths within the mixture and uses dynamic shear rheometer tests to measure aging-induced gradient properties and reveal internal mechanisms. G* master curves are constructed to investigate gradient aging effects in a wide range. The study finds that the composite specimen method can effectively restore the boundary conditions and that it is feasible to study gradient aging characteristics within the asphalt mixture. The study also observes variations in G* and delta values and the depth range of gradient aging effects for different aging levels.
Article
Engineering, Multidisciplinary
Min Li, Kai Wei, Tianhe Xu, Yali Shi, Dixing Wang
Summary: Due to the limitations of ground monitoring stations in China for the BDS, the accuracy of BDS Medium Earth Orbit (MEO) satellite orbits can be influenced. To overcome this, low Earth orbit (LEO) satellites can be used as additional monitoring stations. In this study, data from two LEO satellites were collected to improve the precise orbit determination of the BDS. By comparing the results with GPS and BDS-2/3 solutions, it was found that including the LEO satellites significantly improved the accuracy of GPS and BDS-2/3 orbits.
