Article
Physics, Applied
Lingwei Zeng, Fuwang Zhao, Hanfeng Wang, Zhaokun Wang, Waikin Yeung, Yang Liu, Hui Tang
Summary: Clean energy is urgently needed as a solution to the depletion of fossil fuel resources and increasing carbon emissions. The study investigates the flow-induced vibration and energy harvesting performance of a cylinder with attached fins. Four different configurations were tested and compared, and a bi-directional flow-energy harvester was implemented by attaching both windward and leeward fins to the cylinder. The results showed that this harvester achieved higher vibration amplitudes and had a broader velocity range compared to a plain cylinder.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Yi Han, Fang Wu, Xiaozhen Du, Zihao Li, Haixiang Chen, Dongxing Guo, Junlei Wang, Hong Yu
Summary: This paper presents a novel type of triboelectric nanogenerator that utilizes wind energy, with a Y-type bluff body to enhance vibration and output power. The application of this generator successfully provides power for a wireless temperature and humidity sensor.
Article
Mechanics
Yu Chen, Zhichun Yang, Shengxi Zhou
Summary: A high-performance wind-induced vibration energy harvester with an angle section head is designed, which demonstrates a wide operating wind speed range and high output power.
INTERNATIONAL JOURNAL OF APPLIED MECHANICS
(2022)
Article
Computer Science, Information Systems
Kankana Paul, Dinesh R. Gawade, Roy B. V. B. Simorangkir, Brendan O'Flynn, John L. Buckley, Andreas Amann, Saibal Roy
Summary: This article presents the design and fabrication of a resonant vibration energy harvester (VEH) that can provide a sustainable power source for wireless devices. The VEH has a compact size and high power density, and its feasibility in supporting near field communication (NFC)-based wireless sensor platforms is demonstrated. The study also shows that the VEH can enhance the wireless communication range for the NFC sensor nodes. This high-performance energy harvester-assisted NFC sensor node has the potential to be applied in various Internet of Things (IoT) platforms as an efficient power solution.
IEEE INTERNET OF THINGS JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Qiman Wang, Wenhao Li, Kun Wang, Yitao Liao, Junjie Zheng, Xiongtu Zhou, Jianpu Lin, Yongai Zhang, Chaoxing Wu
Summary: The core-shell triboelectric nanogenerator (CS-TENG) is an environmentally friendly and low-cost wind energy harvesting technique, which can respond sensitively to wind and generate electricity. It can also be paralleled to harvest wind energy at low wind speeds. Additionally, it can be used as a self-powered power supply for water quality testing systems.
Article
Instruments & Instrumentation
Keyu Chen, Fei Gao, Zheyuan Liu, Wei-Hsin Liao
Summary: This paper presents a geometric nonlinear M-shaped tri-directional piezoelectric energy harvester, which can achieve orthogonal vibrating directions for the first three resonant modes through structural parameter modification. Experimental results show similar power output levels in three directions, indicating the capability of tri-directional energy harvesting.
SMART MATERIALS AND STRUCTURES
(2021)
Article
Engineering, Marine
Tian Song, Lin Ding, Lin Yang, Jingyu Ran, Li Zhang
Summary: Three machine learning models are used to estimate the output voltage of the wind-induced vibration piezo-electric energy harvester (WIVPEH) in this study. The dataset is obtained from wind tunnel experiments with wind speeds ranging from 1.02 m/s to 6.80 m/s. The results show that the fin-shaped attachments (FSAs) can enhance the energy extracting performance of the WIVPEH, with a maximum output power 49.21 times higher than that of the harvester with a smooth cylinder.
Article
Engineering, Electrical & Electronic
Carlos Imbaquingo, Christian Bahl, Andrea R. Insinga, Rasmus Bjork
Summary: This article presents an elliptically shaped electromagnetic vibration energy harvester that can tune the resonance frequency easily. The harvester consists of a free-to-move ring-shaped permanent magnet, elliptically distributed cube magnets in a fixed holder, and two coil windings above and below the harvester. When subjected to vibrations, the ring magnet moves until it is pushed back by the magnetic force from the fixed cube magnets, inducing an electromagnetic force on the fixed coils. Experimental results show that the harvester has two resonant frequencies at 4.5 Hz and 7 Hz, generating around 1.5 mW of power.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Physical
Junwu Kan, Weilin Liao, Jin Wang, Shuyun Wang, Mengjia Yan, Yonghua Jiang, Zhonghua Zhang
Summary: This paper presents an enhanced piezoelectric wind-induced vibration energy harvester (EPWEH) that improves reliability, environmental adaptability, and power generation performance by introducing a downstream diamond-shaped baffle to change the aeroelastic instability of the cylindrical shell. Experimental results demonstrate that the compound-embedded structure significantly enhances the power generation performance of EPWEH, achieving a high voltage output enhancement and maximum output power density.
Article
Engineering, Electrical & Electronic
Shuvajit Das, Omer Gundogmus, Yilmaz Sozer, John Kutz, Joshua Tylenda, Ronnie L. Wright
Summary: The article addresses the noise, vibration, and harshness issue in switched reluctance machines (SRMs) by proposing a structural design modification in the stator to increase stiffness to mass ratio. The study focuses on a 24-slot 16-pole SRM designed for automotive applications and tackles the average torque reduction due to flux shorting in stator pole bridges by using a low-permeability material. Experimental results show a maximum noise reduction of 12.52 dBA in the stator pole bridge model compared to the baseline SRM.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Thermodynamics
Haigang Tian, Xiaobiao Shan, Guangdong Sui, Tao Xie
Summary: This study presents a novel piezoelectric aeroelastic energy harvester with different rod-shaped attachments, which enhance harvesting performance by changing flow field characteristic and enhancing aerodynamic loads. Harvesters with square rod show better output characteristic, especially in aeroelastic vibration and harvesting performance.
Article
Engineering, Mechanical
Shen Li, Zhiqiang Feng, Xuefeng He, Yizhou Ye, Jinghua Li
Summary: This study presents an in-plane omnidirectional flutter piezoelectric wind energy harvester (PWEH) composed of a hollow cylindrical shell and several piezoelectric composite beams. It exhibits high electrical output over a wide wind speed range, regardless of wind direction.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Energy & Fuels
Lin Zou, Yulong Yan, Diwei Liu, Xiaofan Zhang, Hao Xia
Summary: A novel wavy cylinder-based piezoelectric wind energy harvester (PWEH) is proposed, which improves the output power by attaching two wavy-shaped rods to the surface. Compared with typical PWEH, this new design can work outside the VIV lock-in range and its output power and voltage increase with wind speed. The findings of this study can theoretically enhance the energy harvesting efficiency of PWEH.
Article
Thermodynamics
Chengliang Fan, Hai Li, Zutao Zhang, Yajia Pan, Xiaoping Wu, Ammar Ahmed
Summary: The paper proposes an H-shaped coupler energy harvester (HC-EH) for the onboard power supply of freight trailer safety monitoring sensors in heavy railways. The HC-EH consists of three modules: vibration input, motion conversion, and energy conversion. The H-type structure of the HC-EH solves the damage caused by the impact force between couplings on heavy railways. A generator converts kinetic energy into electricity stored in supercapacitors and provides power for the railway onboard monitoring sensor network. The practical applications of the proposed HC-EH in the Datong-Qinhuangdao Railway are studied.
Article
Instruments & Instrumentation
Qunfeng Zou, Lin Ding, Tian Song, Lin Yang, Li Zhang
Summary: The study found that for most cases, the output power of the FSR cylinder increases monotonously with the rise of alpha, while the output voltage tendency varies with wind velocity similar to that of output power. The maximum values of output voltage and power are 19.70 V and 1.90 mW can be obtained when alpha= 20 degrees (theta= 60 degrees). The WIV responses of the FSR cylinder show that the amplitudes increase with coverage for low installation angle and the maximum amplitudes exceed 2D for certain angles. Multiple frequencies can be captured for high coverage due to the boundary layer separating point moving in downstream direction.
SMART MATERIALS AND STRUCTURES
(2021)
Article
Computer Science, Theory & Methods
Guangxia Xu, Weifeng Li, Jun Liu
FUTURE GENERATION COMPUTER SYSTEMS-THE INTERNATIONAL JOURNAL OF ESCIENCE
(2020)
Article
Physics, Condensed Matter
Wei Kang, Xiaoqing Liu, Wen Zeng, Yixin Zhang, Lin Qi, Jun Liu, Liang Fang, Miao Zhou
JOURNAL OF PHYSICS-CONDENSED MATTER
(2020)
Article
Computer Science, Hardware & Architecture
Guangxia Xu, Xinkai Wu, Jun Liu, Yanbing Liu
Article
Engineering, Electrical & Electronic
Dengzhuo Zhang, Jun Liu, Lan Qin, Jingcheng Liu, Min Li
IEEE SENSORS JOURNAL
(2020)
Article
Engineering, Multidisciplinary
Dengzhuo Zhang, Min Li, Lan Qin, Yuexuan Zhang, Jingcheng Liu, Jun Liu
Summary: This study analyzed and mathematically modeled a six-wafer piezoelectric 6-DF accelerometer, derived analytical mathematical models and graph models for cross-coupling, and verified the effectiveness of the analytical mathematical models. Coupling direction and quantity were obtained based on the graph models.
Article
Physics, Condensed Matter
Huang Cheng-Cai, Wang Yang, Yao Qian, Li Deng-Feng, Liu Jun
Summary: In this paper, the MXene nanosheet Mn2ZnN2 has been predicted as a robust intrinsic half-metallic nanosheet with stable half-metallicity and magnetic properties within a certain pressure range. The charge state can be tuned to improve its half-metallicity and magnetic properties.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2022)
Article
Environmental Sciences
Aqiang Ding, Lin Quan, Xu Guo, Haoqi Wang, Yiyi Wen, Jun Liu, Lilan Zhang, Daijun Zhang, Peili Lu
Summary: A storage strategy was designed in this study to reduce the amount and activity of microorganisms in flowback water without the addition of biocides, promoting the green exploitation of shale gas. Dissolved oxygen was found to contribute significantly to microbial control effectiveness, with temperature not showing significant impact. Identified thermophilic, anaerobic, sulfate reduction, and metal corrosion microorganisms were effectively reduced by different storage strategies.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Yong Cheng, Han-Qing Zhao, Aqiang Ding, Fei Chen, Jun Liu, Dazhi Fang, Chenglong Li, Yongkui Huang, Peili Lu
Summary: The Ti/(RuxIry)O-2 anode exhibited favorable catalytic performance for the oxidation and mineralization of QAC under high salinity conditions. The increase of pH could decrease the removal efficiency of QAC, while the rise of Cl- concentration could favor the QAC oxidation.
ENVIRONMENTAL RESEARCH
(2022)
Article
Physics, Applied
Wang Yang, Wang Lian-Yan, Huang Cheng-Cai, Yao Qian, Li Deng-Feng, Liu Jun
Summary: This paper proposes a half-metallic Ti-based MXenes monolayer Ti2ZnC2 as a highly spin-polarized 2D nanomaterial. In positive charge states, this monolayer exhibits stable half-metallicity and magnetic moments, mainly contributed by the spin-polarized Ti-ions. Additionally, the half-metallicity of the monolayer can be improved by strain engineering.
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2022)
Article
Computer Science, Information Systems
Jun Liu, Juan Zhao, Haihui Huang, Guangxia Xu
Summary: This paper investigates the application of blockchain in e-commerce logistics. It proposes a novel access control scheme for logistics data, combining the membership in Hyperledger and ciphertext-policy attribute-based encryption. The scheme ensures the security of the user's private key with the membership in Hyperledger instead of the traditional key distribution center. Experimental test and verification results on Hyperledger Fabric demonstrate the feasibility of the proposed scheme.
MULTIMEDIA TOOLS AND APPLICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Liu Jun, Huang Cheng-Cai, Wang Yang, Yao Qian, Wang Lian-Yan, Li Deng-Feng
Summary: MXene materials with half-metallicity and magnetic properties have attracted significant research interest. A new MXene nanosheet with high Curie temperature and intrinsic half-metallicity has been predicted. The magnetic moment of this nanosheet originates from spin-polarized Cr ions induced by the crystal field, and its half-metallicity can be improved with biaxial tensile strain.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2022)
Article
Meteorology & Atmospheric Sciences
Gao Bei, Shuyu Zhang, Yanlong Guo, Li Yanli, Ning Hu, Jun Liu
Summary: Meteorological disasters have a significant negative impact on people's lives. The use of satellite remote sensing technology in meteorological disaster monitoring improves the accuracy and timeliness, providing effective solutions and decision-making basis for disaster prevention and mitigation. This paper discusses the principle, system, and application of satellite remote sensing technology in the monitoring of agricultural meteorological disasters, and provides a scientific reference for farmers and agricultural decision-making.
ADVANCES IN METEOROLOGY
(2022)
Article
Computer Science, Information Systems
Xingyu Lu, Jun Liu, Shengli Gan, Tun Li, Yunpeng Xiao, Yanbing Liu
Summary: This study proposes a framework containing personalization, interest group identification, and recommendation mechanisms for developing optimized network service for e-commerce companies. The primary contribution is a recommendation model based on data compensation and dynamic user interest grouping, which effectively improves recommendation accuracy.
IEEE TRANSACTIONS ON NETWORK AND SERVICE MANAGEMENT
(2022)
Article
Engineering, Electrical & Electronic
Dengzhuo Zhang, Jianmeng Jing, Lan Qin, Jingcheng Liu, Min Li, Jun Liu
Summary: This study focuses on the analytical mathematical modeling of the piezoelectric 6-D accelerometer based on the amplitude-frequency characteristics (AFCs). The results show that the analytical mathematical model can effectively predict the AFC curve of the accelerometer, providing a theoretical foundation for further research on the optimization design.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Article
Computer Science, Information Systems
Jun Liu, Sule Tang, Guangxia Xu, Chuang Ma, Mingwei Lin
Article
Engineering, Electrical & Electronic
Kehao Feng, Zhenghua Zhang, Guohua Bai, Xiuyuan Fan, Rongzhi Zhao, Xuefeng Zhang
Summary: This paper proposes a new method to accurately evaluate the high-frequency power loss of soft magnetic materials. Through a two-step calibration, the system is able to compensate for the phase angle discrepancy between the exciting current and induced voltage, enabling a higher power loss measurement frequency.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Mingfang Kang, Tong Liu, Hongmei Sun, Lin Li, Keliang Wang
Summary: In this study, the absorption performance of ambient nitrogenous toxic gases on a monolayer of blue phosphorus phase germanium selenide (GeSe) was investigated using density-functional theory calculations. The results showed that GeSe monolayer exhibits higher sensitivity and selectivity for the hazardous gas NO.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Yaqiong Niu, Zhicheng Zou, Longsheng Cheng, Chaofeng Ye
Summary: This paper proposes a novel method to stabilize the laser diode output using a close-loop control with two feedbacks. The proposed method performs better for long-time operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jiajie Li, Ying Liu, Zhen Chai, Qian Cao, Renjie Li, Yueyang Zhai
Summary: This study proposed an efficient and high-quality beam-splitting method based on a diffractive optical element, enabling multichannel SERF atomic magnetometers to achieve ultra-high consistency and sensitivity. It has significant applications in array biomagnetic measurement systems.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
E. Oliveira, C. Doering, H. Fouckhardt
Summary: With the development of Lab on a chip technology, fluid management using dispersed droplets has become an important approach. Electrowetting on dielectric (EWOD) is one method for droplet actuation, but it requires prior definition of droplet positions. Optoelectrowetting (OEW) goes further by allowing changes in electrical parameters through impinging light spots, without the need for predefined droplet positions. This study re-evaluates the key parameters of OEW and explores their effects on droplet actuation using numerical optimization methods.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Haipeng Wang, Zhiguo Wang, Gancheng Zhu, Shuai Zhang
Summary: A novel capacitive proximity skin was developed to improve the performance of robotics in handling liquid-filled containers. This skin features a flexible structure that can adapt to different grippers and seamlessly integrate with Robot Operating System. Experimental results demonstrated that this proximity skin achieved data-lossless detection and contactless measurement of liquid level, making it suitable for grasping operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Tsenguun Byambadorj, Xiangyu Zhao, Yutao Qin, Yogesh B. Gianchandani
Summary: In this research, a monolithically microfabricated Knudsen pump (KP) without suspended membranes was presented. These pumps offer improved mechanical robustness, wider process window, and simplified microfabrication process compared to previous designs. The experimental results matched the modeling results well, indicating the potential for monolithic integration onto complex lab-on-a-chip systems.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Hamed Karami, Saeed Karami Chemeh, Vahid Azizi, Hooman Sharifnasab, Jose Ramos, Mohammed Kamruzzaman
Summary: Aroma is a significant quality trait for pharmaceutical plants and their products, indicating the quality of the raw material. An electronic nose is an efficient approach for identifying and evaluating the aroma of essential oils. In this study, tarragon was dried at different temperatures and air velocities, and the purity of tarragon essential oil was evaluated using an electronic nose. Multivariate data analysis and artificial neural networks modeling were employed to quantify and classify the obtained essential oils.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Xiaoyang Duan, Dan Xu, Wenjun Jia, Ran Li, Bohao Sun, Ruitian Yan, Wenjie Zhao
Summary: Flower-like WO3/WS2 heterojunction materials constructed via a low-temperature in-situ oxidation method exhibit significant improvements in the detection of NO2 gas in gas sensors, along with good selectivity and reproducibility.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Peng Yu, Mengyang Zhang, Manqi You, Yuxi Gao, Landong Xiao, Yan Peng, Jingxia Lai, Zhouzhao Shi, Siwei Luo, Gencai Guo, Gang Guo
Summary: Recent studies have shown that two-dimensional Janus transition metal dichalcogenides (TMDs) have great potential for applications in gas sensors. By conducting first principles calculations, this study explores the potential application of Pd-doped monolayer HfSeS as gas sensor materials for detecting CO, CO2, NH3, and NO. The results demonstrate the good thermodynamical stability and reversible adsorption of these molecules on both pristine and Pd-doped HfSeS, with Pd-doped HfSeS showing higher sensitivity towards NO due to its metallic behavior upon NO adsorption.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jinlan Yang, Linjiao Li, Jun Huang, Quan Zhang, Hiba Affane
Summary: This study proposes a method for large-scale aggregation of micro-particles by creating a vortex region using low-frequency oscillation. Experimental results show that this method can achieve a large aggregation area and has the advantages of low cost and low power consumption.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jitendra Singh, Saurabh Kumar Gupta, Vinita
Summary: In this investigation, a Surface Acoustic Wave (SAW) formalin gas sensor was explored for low-level formalin gas sensing applications. The sensor showed stable response and high sensitivity to formalin gas concentration, making it a reliable and useful sensor for room temperature operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Junyao Wang, Yahao Liu, Huan Liu, Qi Hou, Jianxin Xu, Hongxu Pan, Jingran Quan, Yansong Chen, Hanbo Yang, Lixiang Li
Summary: A flexible electrode with a serpentine-shaped tetra-chiral structure was designed to improve the mechanical properties and prevent mechanical fracture of flexible electrodes. The research demonstrated that this structure reduced the maximum tensile stress by 87.19% compared to the existing tetra-chiral structure. The flexible electrode remained conductive even at a strain of 70% and showed resistance values of 5 ohm and 4.4 ohm at a bending angle of 180 degrees and after 1000 fold cycles. Furthermore, the flexible electrodes showed great potential in biological signal monitoring, particularly in collecting ECG and pulse signals.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Taihao Chen, Yong Fang, Mengru Zhu, Zhiwei Zhao, Wei Lei, Zhuoya Zhu, Helong Jiang
Summary: Flexible dual-spectral carbon nanodots/flexible n-silicon heterojunction photodetectors with high responsivity and detectivity are reported. These detectors show photo response in UV illumination and only in forward bias under visible illumination. The photocurrent of the device remains high even under bending strain.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
M. S. Sikandar Bathusha, Israr Ud Din, Rehan Umer, Kamran A. Khan
Summary: Graphene-based nanomaterials are used as embedded sensors to monitor fracture behavior in composite structures. This study investigates the in-situ crack propagation and fracture behavior in a glass fiber reinforced polymer composite using embedded reduced graphene oxide coated fabrics and highly conductive graphene nanoplatelet paper.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
