Results 241 to 250 of about 788,468 (298)

Quantum‐Grade Nanodiamonds from a Single‐Step, Industrial‐Scale Pressure and Temperature Process

Advanced Functional Materials, EarlyView.
Novel method for creation of nitrogen‐vacancy centers in 50‐nm nanodiamonds based on high‐temperature plastic deformation is demonstrated. Compared to the electron irradiation approach, it yields nitrogen‐vacancy centers with significantly improved charge stability, T1 relaxation time, and optical Rabi contrast.
Yahua Bao, Michal Gulka, Parkarsh Kumar, Jakub Copak, Priyadharshini Balasubramanian, Yuliya Mindarava, Rémi Blinder, Michael Olney‐Fraser, Haotian Wen, Hana Spanielova, Helen Zhi Jie Zeng, Benjamin Whitefield, Igor Aharonovich, Jaroslav Hruby, Fedor Jelezko, J. Daniel Belnap, Shery L. Y. Chang, Petr Cigler   +17 more
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Magnetization of two-dimensional magnetic fluids

Journal of Physics: Condensed Matter, 2008
The influence of polydispersity on the magnetization of two-dimensional dipolar discs with short-range repulsive interaction is studied by means of Monte Carlo simulations and a high field approximation perturbation theory. Within the framework of perturbation theory an analytical expression is derived for the magnetization of monodisperse and ...
T, Kristóf, I, Szalai
openaire   +2 more sources

Effects of Magnetic Fluid on Magnetic Fluid Damper

Key Engineering Materials, 2012
A magnetic fluid damper which based on the principle of second-order buoyancy of magnetic liquid has been presented. During the process of damping, besides the elastic deformation of magnetic liquid adsorbed by permanent magnet, the main ways of energy dissipation are the friction functions, which include the friction between magnets and magnetic ...
Jun Hui Zhang, Zhi Li Zhang, De Cai Li, Jie Yao   +3 more
openaire   +1 more source

A magnetic fluid seal for rotary blood pumps: Behaviors of magnetic fluids in a magnetic fluid seal

Bio-Medical Materials and Engineering, 2013
A magnetic fluid (MF) seal has excellent durability. The performance of an MF seal, however, has been reported to decrease in liquids (several days). We have developed an MF seal that has a shield mechanism. The seal was perfect for 275 days in water.
Yoshinori, Mitamura, Tetsuya, Yano, Wataru, Nakamura, Eiji, Okamoto   +3 more
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Research of Computation about Magnetic Fluid under Magnetic Fluid

2011 First International Conference on Instrumentation, Measurement, Computer, Communication and Control, 2011
The distribution and shape of magnetic fluid can be influenced by the adding magnetic field. The magnetism of magnetic fluid can be presented by the adding magnetic field. At the same time, the magnetism can influence the distribution of the adding magnetic field.
Meng Zhao, Jibin Zou
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Magnetization Process of Magnetic Fluid

IEEE Translation Journal on Magnetics in Japan, 1985
The magnetization curves of magnetic fluids in liquid and frozen states, together with magnetic field cooling effects and particle concentration dependences, are reported. Fluids were frozen in liquid nitrogen under a 3.6 kOe field, and magnetization curves measured as a function of the angle Q (= 0, 45, 90°) between the field during freezing and the ...
M. Setogawa, H. Miyajima, Y. Kurihara, S. Taketomi, S. Chikazumi   +4 more
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Magnetic fractionation of magnetic fluids

Journal of Magnetism and Magnetic Materials, 2000
The properties of magnetic nanoparticles in magnetic fluids often exhibit a broad distribution, so in many applications only a small number of particles contribute to the desired magnetic effect. In order to optimize magnetic fluids for applications, preference is given to methods that separate the nanoparticles on the basis of their magnetic ...
Thomas Rheinländer, Róman Kötitz, Werner Weitschies, Wolfhard Semmler   +3 more
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Magnetic fluids [PDF]

, 2016
A magnetic fluid is provided comprising a block copolymer stabilizer, magnetic particles and a fluid polysiloxane medium. The stabilizer comprises an anchor block which chelates magnetic metal particles, and at least one end block which is compatible with the polysiloxane medium.
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A Magnetic Fluid Dynamometer

Transactions of the American Institute of Electrical Engineers, 1951
SINCE THE ANNOUNCEMENT of the magnetic fluid by J. Rabinow1 in 1948, several manufacturers have been producing magnetic fluid clutches for use primarily in servomechanisms. Though some manufacturers also have produced designs for breaking service, the author knows of no instance where the magnetic fluid has been used for absorption-dynamometer ...
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AGGREGATION IN MAGNETIC FLUIDS AND MAGNETIC FLUID COMPOSITES

Chemical Engineering Communications, 1988
Many of the properties of magnetic fluids and magnetic fluid composites can be explained by the presence of aggregates of particles. In this paper, the experimental methods by which these properties can be studied are reviewed. Theoretical methods of predicting these properties, and the particle size and magnetic field dependence of the formation of ...
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