Article
Instruments & Instrumentation
Van Hiep Cao, Tien Hung Dinh, Thi Thoa Nguyen, Khanh Hung Nguyen, Dinh Khang Pham, Xuan Hai Nguyen, Ngoc Anh Nguyen, Tien-Anh Nguyen
Summary: This study introduces a flexible, low-cost digital multichannel analyzer (DMCA) based on FPGA, with various digital signal processing modules integrated for developing handheld radiation measurement devices.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2021)
Review
Automation & Control Systems
Liangliang Li, Baoji Ma, Zhichao Li, Jianxiao Bian, Tianxu Gong, Jinkui Cao, Xiangyu Li
Summary: This paper provides a comprehensive review of magnetoelectrochemistry (MEC) techniques and the effect of magnetic fields on electrochemical machining (ECM). It summarizes the MEC effects caused by magnetic fields acting on ECM, reviews existing magnetic field-assisted ECM technologies, and proposes future applications of magnetic fields in electrochemical additive manufacturing (ECAM) technologies. The paper serves as a reference for MEC processing.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Paul S. Wright, Deborah Ritzmann
Summary: A new frequency decomposition method is introduced for measuring power grid compatibility level in the 2-150 kHz range. The method is based on a tree structure of modular algorithmic elements, providing a 200 Hz resolution. By using heterodyning and down-sampling in modular elements, the algorithm achieves real-time operation and computational efficiency, with test results showing accuracies within +/- 5% of readings.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Mechanics
Xiaoqiang Wang, Juanjuan Zhang, Wurui Ta, Xiaodong Xia, George J. Weng
Summary: Surface effects and interface effects play important roles in the magneto-electro-elastic behavior and bending of nanomaterials and structures at micron size and millimeter size scales. The study introduces these effects into Kirchhoff's thin plate theory to analyze the nonlinear magneto-electro-elastic coupling of multilayered magnetoelectric nanostructures. The research provides insights into the influences of magnetic field, applied electric potential, and magnetic potential on the bending characteristics of multilayered ME structures, offering guidelines for nano device design and applications.
COMPOSITE STRUCTURES
(2021)
Article
Chemistry, Analytical
Dmitri A. Burdin, Dmitri V. Chashin, Nikolai A. Ekonomov, Leonid Y. Fetisov, Vladimir L. Preobrazhensky, Yuri K. Fetisov
Summary: This study investigates the low-frequency magnetoelectric (ME) effects in heterostructures consisting of a layer of antiferromagnetic hematite & alpha;-Fe2O3 crystal with easy-plane anisotropy and a piezoelectric layer. The results show that the frequency tuning of the hematite crystal is linearly related to the increase in the bias field, reaching up to 37%. The frequency tuning of the hematite-PVDF heterostructure is 24% with a ME coefficient of 58 mV/(Oe & BULL;cm). The frequency tuning of the hematite-piezoceramic heterostructure is 4.4% with a ME coefficient of 4.8 V/(Oe & BULL;cm). Additionally, efficient generation of the second voltage harmonic is observed in the hematite-piezoceramic heterostructure.
Article
Geochemistry & Geophysics
V Lesur, N. Gillet, M. D. Hammer, M. Mandea
Summary: This paragraph discusses the evidence of fast variations in the Earth's core field observed in magnetic observatory and satellite records. It explains how these variations are identified at the Earth's surface and characterized by satellite data. The paragraph also mentions the extraction of their properties at the core mantle boundary through localized and global modeling processes, with emphasis on their time scales. Finally, it lists the possible types of waves in the liquid outer core that may cause these observed fast variations.
SURVEYS IN GEOPHYSICS
(2022)
Article
Engineering, Mechanical
Alireza Keramat, Huan-Feng Duan
Summary: This study focuses on using transient waves and system responses to identify leaks in water supply pipelines, proposing a new method that can accurately locate leaks with a single spatial measurement, and comparing and improving upon traditional methods.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2021)
Review
Chemistry, Multidisciplinary
Hengwei Wang, Keliang Wang, Yayu Zuo, Manhui Wei, Pucheng Pei, Pengfei Zhang, Zhuo Chen, Nuo Shang
Summary: Metal-air batteries are considered as a promising source of electrochemical energy due to their excellent characteristics and low cost. However, commercialization is hindered by slow kinetics, corrosion, and dendrite growth. The use of magnetic fields has shown promise in improving the performance of these batteries by enhancing mass transfer, charge transfer, and electrocatalysis.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Fan Li, Xiao Zhang, Tianxin Wu, Jiheng Li, Xuexu Gao, Jie Zhu
Summary: In this study, large magnetoelectric coupling coefficient and magnetoelectric coupling anisotropy were reported in Galfenol/PZT/Galfenol 2-2 symmetric magnetoelectric sandwich devices. The Galfenol alloy with <001> orientation exhibited significant magneto-striction and a high piezomagnetic coefficient. A magnetoelectric coupling laminate of Galfenol/PZT/Galfenol was prepared, and the device showed linear and sensitive magnetoelectric output voltage in response to AC excitation magnetic field. The device also demonstrated in-plane magnetoelectric anisotropy and potential for magnetic field sensing and energy harvesting applications when powering LEDs and a temperature/humidity sensor.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Mechanics
Yang Shi, Baoxin Lei, Yongkun Wang, Junjie Ye
Summary: This paper presents an analytical model to evaluate the self-bias magnetoelectric effect of magnetization-graded magnetoelectric composites under extensional-bending coupled vibration. The results indicate the availability of self-bias magnetic field in the composites, which can enhance the self-bias magnetoelectric coupling and adjust the resonance frequency by applying tensile stress or increasing the thickness of the high-permeability layer.
COMPOSITE STRUCTURES
(2022)
Article
Chemistry, Analytical
Kunyu Sun, Zhihao Jiang, Chengmeng Wang, Dongxuan Han, Zhao Yao, Weihua Zong, Zhejun Jin, Shandong Li
Summary: The magnetoelectric (ME) sensor is a new type of magnetic sensor that has ultrahigh sensitivity for measuring low-frequency weak magnetic fields. In this study, a metglas/PZT-5B ME sensor with a mechanical resonance frequency f(res) of 60.041 kHz was prepared. With the use of a frequency up-conversion technique, the sensor achieved a limit of detection (LOD) under an AC magnetic field lower than 1 nT at 8 Hz, and a minimum LOD of 0.51 nT at 20 Hz. The high-resolution ME sensor at the sub-nT level shows great potential in the field of low-frequency weak magnetic field measurement technology.
Article
Chemistry, Inorganic & Nuclear
Xudong Shen, Long Zhou, Zhehong Liu, Jincheng He, Xubin Ye, Guangxiu Liu, Shijun Qin, Dabiao Lu, Jie Zhang, Young Sun, Youwen Long
Summary: Scheelite-type HoCrO4, prepared via pressure treatment of the ambient-pressure zircon-type precursor phase, exhibits a long-range antiferromagnetic phase and can be induced into a metamagnetic state with a moderate magnetic field. It shows a considerable linear magnetoelectric effect and a sharp increase in electric polarization near the critical field of the metamagnetic transition. However, ferromagnetism and ferroelectricity rarely coexist under higher magnetic fields in scheelite-type HoCrO4. The magnetic field also plays a significant role in the longitudinal constriction and magnetostrictive effect of HoCrO4.
INORGANIC CHEMISTRY
(2022)
Article
Astronomy & Astrophysics
M. Fillion, A. Chulliat, P. Alken, M. Kruglyakov, A. Kuvshinov
Summary: This article presents a new model based on ground observatory measurements for tracking hourly variations of the near-Earth magnetospheric field and the associated induced field, taking into account their local time asymmetries. The model separates the primary and induced fields and uses a radially-symmetric electric conductivity model of the Earth to compute the model coefficients. It is consistent with previously developed indices and validated against satellite data.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Aliona Nicolenco, Muireann de h-Ora, Chao Yun, Judith MacManus-Driscoll, Jordi Sort
Summary: Understanding strain gradient phenomena is crucial in areas like condensed matter physics. It can enhance coupling effects in composites of piezoelectric or ferroelectric materials with magnetostrictive phases, and potentially lead to the development of new functional multiferroic composites or magnetic-field-driven flexoelectric/magnetostrictive platforms. Generating strain gradients by applying magnetic or electric fields in materials with non-fully constrained geometries can ultimately result in high flexomagnetoelectric effects.
Article
Nanoscience & Nanotechnology
Shanshan Lai, Yanjiao Wang, Yuanyuan Wan, Hang Ma, Liming Fang, Jianyu Su
Summary: In this study, a smart magnetoelectric coating was developed to give stainless steel adjustable electrical properties and antibacterial effects. The antibacterial mechanism of the coating was also explored. This research provides a new solution for the hygiene and cleaning of food processing devices.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Editorial Material
Engineering, Electrical & Electronic
Nguyen Huu Duc
IEEE TRANSACTIONS ON MAGNETICS
(2018)
Article
Chemistry, Physical
N. H. Duc, D. T. Huong Giang
JOURNAL OF ALLOYS AND COMPOUNDS
(2008)
Article
Physics, Multidisciplinary
Nguyen Hun Duc, Vu Nguyen Thuc, Y. D. Yao
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
(2008)
Article
Physics, Multidisciplinary
N. H. Duc, T. D. Thanh, N. H. Yen, P. T. Thanh, N. H. Dan, T. L. Phan
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
(2012)
Article
Engineering, Marine
Paul Nguyen Hong Duc, Dorian Cazau, Paul R. White, Odile Gerard, Joel Detcheverry, Frank Urtizberea, Olivier Adam
Summary: This paper demonstrates how information about marine biodiversity can be obtained through detailed analysis of the underwater acoustic environment. The marine acoustic environment of Saint-Pierre-and-Miquelon archipelago can be divided into three main sound source classes: biophony, anthrophony, and geophony. Several cetacean species were encountered in the audio recordings, including sperm whales, humpback whales, and blue whales.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Proceedings Paper
Computer Science, Information Systems
N. H. Duc, J. Shi, F. Gao, K. Strunz
Article
Materials Science, Multidisciplinary
N. H. Duc, N. T. M. Hong, J. Teillet
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2007)
Article
Materials Science, Multidisciplinary
N. H. Duc, D. T. Huong Giang
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2007)
Article
Chemistry, Physical
NH Duc, DTH Giang, VN Thuc, YD Yao
JOURNAL OF ALLOYS AND COMPOUNDS
(2006)
Article
Materials Science, Multidisciplinary
NH Duc, DTH Giang, N Chau
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2005)
Article
Materials Science, Multidisciplinary
NH Duc, DTH Giang, N Chau
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2004)
Article
Materials Science, Multidisciplinary
N. H. Duc, D. T. Huong Giang, V. N. Thuc, I. Davoli, F. Richomme
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2004)
Article
Materials Science, Multidisciplinary
NH Duc, DTH Giang, A Fnidiki, J Teillet
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2003)
Article
Physics, Condensed Matter
NH Duc, NA Tuan, NT Nam, NH Sinh, J Teillet, A Fnidiki
PHYSICA B-CONDENSED MATTER
(2003)
