This paper presents experimental and simulation results of a screening current induced magnetic field (SCF) in high temperature superconductor (HTS) insert that constitutes low-/high-temperature (LTS/HTS) NMR magnet. In this experiment, the HTS insert, stack 50 double-pancake coils, each wound with Bi2223 tape, was operated at 77 K. A by three sources: 1) self from insert; 2) an external 5-T background magnet; 3) combinations 2). For excitation, which SCF, its axial distribution temporal...

For three groups of systems—homogeneous, liquid–liquid, and solid–liquid—absorption heats carbon dioxide capture by amine solutions were determined with continuous calorimetry. In the case a phase-separation solvent, heat phase separation is added to conventional absorption heat, loading range important in process design. With merits measurement, phase-change points obtained liquid–liquid solid–liquid systems as release products achieve more stable state. The where leap appears coincide...

We present a novel non-stochastic method for optimizing the shapes of ferromagnetic materials to generate target static magnetic field. A magnetizing current corresponding an error field is calculated as inverse problem and then replaced with equivalent material. Iteration this process leads almost zero. It should be noted that initial condition material shape critical convergence. Consequently, we propose combined method: generated stochastic optimization algorithm, updated using explicit...

Shear viscosity of concentrated aqueous solutions alkylaminoethanols was determined with changing the length alkyl chain and concentration dissolved CO2. The increased increasing CO2 loading, reflecting strengthening intermolecular electrostatic interaction. dependence on both temperature loading described by a modified version Vogel–Fulchar–Tammann equation. Compared at same volume CO2, lengths, loading. At time, small-angle X-ray scattering profiles exhibited presence prepeak when long,...

A superconducting solenoid system has been designed for the <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$g$</tex-math></inline-formula> -2/EDM experiment at J-PARC, which is used to store muon beam of 0.3 GeV/c. High homogeneous magnetic field required be below notation="LaTeX">$\pm$</tex-math></inline-formula> 0.1 ppm 3 T within a storage region 33.3 1.5 cm in radius and notation="LaTeX">$\mathbf {\pm...

Broadcast sports video report is expected be the generated player data in real time. Therefore, uniform number recognition need to fast computing. Covariance feature has possibilities do it We present a method for using covariance as region descriptor. The represented by matrix of image features such spatial position, intensity, higher order derivatives, etc. Thus, vary used features. Feature matching simple nearest neighbor search under distance measure. In experiments, six covariances...

A new design method for superconducting magnets with a strong, homogeneous magnetic field at their center and small stray area outside the has been developed. The can noncircular racetrack coils correction iron pieces. simulated annealing is adopted to optimize arrangement of coils. minimized objective function combination penalty terms, which are thickness pieces constraints. was used prepare some trial designs wide bore shaped It found that even such coils, possible.

A test cryostat equipped with a conduction-cooled MgB <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> high-temperature superconducting bias magnet has been designed, manufactured, and demonstrated. This is more environmental-friendly user-friendly than the conventional an immersion-cooled NbTi magnet. Liquid helium consumption reduced by almost half of that previous because does not need liquid for cooling itself. ramp-up rate also...

In a superconducting solenoid used as the muon storage magnet in J-PARC <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$g-2$</tex-math></inline-formula> /EDM experiment, high homogeneous magnetic field of less than notation="LaTeX">$\mathbf {\pm }$</tex-math></inline-formula> 0.1 ppm at 3 T is required. A study on source disturbance much important to achieve such field, and vibration one serious concerns...

In order to analyze arc behavior, a numerical calculation method combined with thermal radiation field and compressible gas dynamics has been developed. The following characteristics, (1) To field, the is approximated by diffusion equation classified as Helmholtz discretized by. FEM. (2) electric in an calculated FEM considering dependency of conductivity on temperature. applied model generated between 20mm gap length, we confirmed can predict behavior account transport from SF6 around arc,...

The functional characteristics of superconducting loops passively driven by an external magnetic flux have been experimentally investigated. can be used for suppression in magnets which need to generate highly stable fields. Two one-turn-loops were installed between two coils a strong field, and Hall sensor search coil set at the center system. effect was measured while changing strength field on loops. Contrary expectation, as increased, rate decreased. reason degradation identified...

Measurement and the analysis are done for pulse signals from magnetic sensors (search coils) near superconducting coils voltage taps on coils. The arranged facing each other, expected to detect coil behavior (motion of coils, motion windings, so on) as during ramping up. One causes quenching is occurrence a small mechanical disturbance around windings. Therefore, information about these pulses should be useful get better understanding phenomena. results suggest that can classified into just...

A novel limit design method for superconducting magnets is presented. It particularly suitable ion core such as those used in accelerator magnets. In general, a stochastic optimization whose objective functions consist of values, e.g., the magnetic field, experience field coils, current density, and multipole integral, often used. However, it well known that obtained solution strongly depends on initial one. Furthermore, once calculation model fixed, range solutions also i.e., there are...