A5006023366- Magnetic Properties of Alloys
- Electromagnetic Compatibility and Measurements
- Magnetic properties of thin films
- Magnetic Properties and Applications
- Magnetic Properties and Synthesis of Ferrites
- Power Line Communications and Noise
- Electromagnetic Compatibility and Noise Suppression
- Magnetic and transport properties of perovskites and related materials
- Lightning and Electromagnetic Phenomena
- Metallic Glasses and Amorphous Alloys
- Research studies in Vietnam
- Characterization and Applications of Magnetic Nanoparticles
- Magneto-Optical Properties and Applications
- Physics of Superconductivity and Magnetism
- Iron oxide chemistry and applications
- Marine and fisheries research
- Nanoparticle-Based Drug Delivery
- Electric Motor Design and Analysis
- Multiferroics and related materials
- Superconducting Materials and Applications
- Quantum Dots Synthesis And Properties
- Laser-induced spectroscopy and plasma
- Air Traffic Management and Optimization
- Atomic and Molecular Physics
- Electrical Fault Detection and Protection
Vietnam Academy of Science and Technology
2016-2025
Gachon University
2025
Langley Research Center
2006-2024
Institute of Materials Science
2003-2024
Seoul National University
2015-2024
Memorial University of Newfoundland
2014-2024
Tulane University
2024
Oxford University Clinical Research Unit
2024
Hanoi University of Science and Technology
2017-2023
HUTECH University
2023
MnBi has attracted much attention in recent years due to its potential as a rare-earth-free permanent magnet material. It is unique because coercivity increases with increasing temperature, which makes it good hard phase material for exchange coupling nanocomposite magnets. difficult obtain, partly the reaction between Mn and Bi peritectic, reacts readily oxygen. MnO formation irreversible harmful performance. In this paper, we report our efforts toward developing To date, high purity (>90%)...
Pure phase exchange-coupled nanocomposites of hard-soft magnetic oxides, (hard) SrFe10Al2O19(-) (soft) Ni0.75Zn0.25Fe2O4 were prepared via autocombution method. Magnetic properties the assessed as a function soft-phase content in nanocomposite. A 40% increase M(s) value was observed for nanocomposite with 30 Wt.% soft phase. linear M(r)/M(s) indicates presence enhanced exchange-coupling between hard and phases The highest ratio 0.68 obtained containing soft-phase. reduction coercieve field...
Tunable copper doped Zn1-x Cd x S alloy quantum dots (QDs) were successfully synthesized by the wet chemical method. A one-step method is developed to synthesize ternary QDs which more preferable than a two-step The influence of experimental parameters like Zn/Cd ratio and Cu dopant concentration has been investigated using various spectroscopic techniques UV-visible, photoluminescence, X-ray diffraction Raman spectroscopy. absorption emission properties can be tuned changing components QDs....
Abstract The MnBi intermetallic compound with high purity of low-temperature phase (LTP-MnBi) and maximum energy product ( BH ) max were successfully prepared using various ball milling processes. effects speed duration on the microstructures, compositions, magnetic properties alloys systematically investigated. particle size LTP-MnBi gradually decreased increasing speed. An optimized 175 rpm resulted in powder )max 9.22 MGOe a squareness M r / s 93.7%. Furthermore, was to observe its impact...
MnBi attracts great attention in recent years for its potential as permanent magnet materials. phase is difficult to obtain because of the rather drastic peritectic reaction between Mn and Bi. In this paper, we report our effort on synthesizing high purity compound using conventional powder metallurgical approaches. Neutron diffraction was carried out investigate crystal nuclear structure obtained powder. The result shows that about 91 wt. % at 300 K, magnetic moment atom lattice 4.424 4.013...
Bulk anisotropic composite magnets based on MnBi/Co(Fe) exhibiting the different morphology of soft magnetic phase were prepared by powder metallurgy processing. First, single-phase MnBi bulk produced with a maximum energy product [(BH)m] 6.3 MGOe at room temperature. The nanoscale was then added to form magnet. It observed that addition soft-phase nanoflakes causes dramatic coercivity reduction. However, nanowires enhanced magnetization without sacrificing coercivity. Nevertheless, kink...
Mục tiêu: Đánh giá mức độ chính xác của Điều dưỡng và các yếu tố liên quan trong đánh giá, theo dõi ra quyết định ống thông tĩnh mạch ngoại vi với công cụ I-DECIDED tại Bệnh viện Đại học Y Dược Thành phố Hồ Chí Minh - Cơ sở 2. Phương pháp: Nghiên cứu mô tả cắt ngang sát trên toàn bộ 58 điều viên trực tiếp làm tác chăm sóc người bệnh có sử dụng để 5 khoa lâm sàng viện. Kết quả: quả nghiên cứu, cho thấy khi ở tất cả chỉ số đều đạt tỉ lệ đồng thuận cao từ 85,7% -100% PABAK=0.576-1. Trong đó, “D...
As cyanide ion (CN−), an ecologically harmful pollutant, has received incessant attention with growing industrialization on a global scale, the capability of on-site monitoring CN− contamination becomes increasingly crucial. In this work, we have fabricated simplistic plasmonic-sensing platform for CN−, which can be combined human naked eye visual monitoring. The main sensor part consisted β-Cyclodextrin (β−CD)-decorated gold-rich silver bimetallic alloy nanoparticles (β−CD-Ag/Au-rich NPs),...
Mục tiêu của nghiên cứu là đánh giá tác động các yếu tố đối với ý định dùng xanh người ngành hàng thực phẩm tại Thành phố Biên Hòa và đưa ra hàm quản trị để khuyến khích xanh. Nghiên đã xây dựng một mô hình gồm ba có ảnh hưởng đến xanh, kế thừa liên quan về lý thuyết xanh: tâm môi trường, niềm tin sản kiến thức trường. sử dụng dữ liệu khảo sát 190 khách Hòa. Kết quả cho thấy rằng tố, bao trường tích cực trong trên địa bàn thành này cung cấp số giúp nhà hoạch chính sách công nâng cao thụ áp...
This study investigated the associations between heatwaves and daily hospital admissions for cardiovascular respiratory diseases in two provinces Viet Nam known to be vulnerable droughts during 2010–2018. applied a time series analysis with data extracted from electronic database of provincial hospitals meteorological stations corresponding province. To eliminate over-dispersion, this used Quasi-Poisson regression. The models were controlled day week, holiday, trend, relative humidity....