scholarly journals Cryogenic Test of the Full-Size Superconducting Magnet for the Booster Synchrotron of the NICA Project

2012 ◽  
Vol 36 ◽  
pp. 1083-1086 ◽  
Author(s):  
Hamlet Khodzhibagiyan ◽  
Alexander Bazanov ◽  
Alexei Donyagin ◽  
Artem Galimov ◽  
Victor Karpinsky ◽  
...  
Keyword(s):  
Superconducting Magnet ◽  
Full Size ◽  
Nica Project ◽  
Booster Synchrotron

scholarly journals Magnetic field errors tolerances of Nuclotron booster

2018 ◽  
Vol 177 ◽  
pp. 08001
Author(s):  
Andrey Butenko ◽  
Olha Kazinova ◽  
Sergey Kostromin ◽  
Vladimir Mikhaylov ◽  
Alexey Tuzikov ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Operation Research ◽  
Ion Beam ◽  
Closed Orbit ◽  
Random Errors ◽  
Nica Project ◽  
Analytical Estimation ◽  
Dynamic Aperture ◽  
Booster Synchrotron ◽  
Field Errors

Generation of magnetic field in units of booster synchrotron for the NICA project is one of the most important conditions for getting the required parameters and qualitative accelerator operation. Research of linear and nonlinear dynamics of ion beam 197Au31+ in the booster have carried out with MADX program. Analytical estimation of magnetic field errors tolerance and numerical computation of dynamic aperture of booster DFO-magnetic lattice are presented. Closed orbit distortion with random errors of magnetic fields and errors in layout of booster units was evaluated.

scholarly journals A full-size first-in-Russia MRI high resolution complex with a 1.5 Tesla superconducting magnet

2018 ◽  
pp. 71-80
Author(s):  
В.П. Чехонин ◽  
А.Г. Мажуга ◽  
А.Н. Багдинова ◽  
А.С. Рыбаков ◽  
Е.И. Демихов ◽  
...  
Keyword(s):  
High Resolution ◽  
Superconducting Magnet ◽  
Program Code ◽  
Full Size

Представлен первый отечественный полноразмерный магнитно-резонансный томограф МРТ4.1 для широкого спектра применений, выполненный на базе сверхпроводящего магнита с полем 1,5 Тл. Описано программное обеспечение, позволяющее реализовывать любые последовательности изображений. Томограф и программное обеспечение имеют параметры, не уступающие западным производителям. Преимуществом МРТ является возможность изменять физические параметры магнита и свободный программный код, что представляет интерес для исследователей и продвинутых пользователей. The article presents a first-in-Russia MRI system for vast scope of applications based on a 1.5 Tesla superconducting magnet and describes the software capable to produce any sequence of images. The MRI and software parameters are not inferior to those provided by MRI production leaders. The advantage of this MRI system is a possibility to change magnet field parameters and the free program code, which is interesting for researchers and advanced users.

DESIGN CURRENT DENSITY IMPACT ON COST AND RELIABILITY OF SUPERCONDUCTING MAGNET SYSTEMS FOR EARLY COMMERCIAL MHD POWER PLANTS

1984 ◽  
Vol 45 (C1) ◽  
pp. C1-867-C1-870
Author(s):  
A. M. Hatch ◽  
P. G. Marston ◽  
R. J. Thome ◽  
A. M. Dawson ◽  
W. G. Langton ◽  
...  
Keyword(s):  
Current Density ◽  
Power Plants ◽  
Superconducting Magnet

LUKENS TOOL STEELS

Alloy Digest ◽  
1997 ◽  
Vol 46 (2) ◽  
Keyword(s):  
Tool Steel ◽  
Cold Work ◽  
Tool Steels ◽  
Steel Company ◽  
Full Size ◽  
Heat Treated

Abstract Lukens cold-work tool steels A2, D2, O1, S5, and S7 are used in applications where an air-hardening, oil-hardening, or shock-resisting tool steel is required. These steels are available in full-size, annealed plates suitable for saw cutting and/or finishing. Parts can subsequently be machined and heat treated to a range of hardness requirements. For improved internal cleanliness, all Lukens cold-work tool steels are produced with maximum sulfur levels of 0.010%. This datasheet provides information on composition. It also includes information on machining and joining. Filing Code: TS-550. Producer or source: Lukens Steel Company.

Compact specification of polar codes

2019 ◽  
pp. 40-47
Author(s):  
R. A. Morozov ◽  
P. V. Trifonov
Keyword(s):  
Storage Capacity ◽  
Low Complexity ◽  
Practical Implementation ◽  
Polar Codes ◽  
Practical Relevance ◽  
Memory Consumption ◽  
Full Size ◽  
The Family ◽  
Erasure Probability ◽  
Binary Erasure Channel

Introduction:Practical implementation of a communication system which employs a family of polar codes requires either to store a number of large specifications or to construct the codes by request. The first approach assumes extensive memory consumption, which is inappropriate for many applications, such as those for mobile devices. The second approach can be numerically unstable and hard to implement in low-end hardware. One of the solutions is specifying a family of codes by a sequence of subchannels sorted by reliability. However, this solution makes it impossible to separately optimize each code from the family.Purpose:Developing a method for compact specifications of polar codes and subcodes.Results:A method is proposed for compact specification of polar codes. It can be considered a trade-off between real-time construction and storing full-size specifications in memory. We propose to store compact specifications of polar codes which contain frozen set differences between the original pre-optimized polar codes and the polar codes constructed for a binary erasure channel with some erasure probability. Full-size specification needed for decoding can be restored from a compact one by a low-complexity hardware-friendly procedure. The proposed method can work with either polar codes or polar subcodes, allowing you to reduce the memory consumption by 15–50 times.Practical relevance:The method allows you to use families of individually optimized polar codes in devices with limited storage capacity. 

FULL-SIZE BENDING TEST AND ANALYSIS OF SQUARE STEEL PIPES WITH BOLTED JOINTS FOR UNDERPASS CONSTRUCTION METHOD

2016 ◽  
Vol 72 (1) ◽  
pp. 39-52
Author(s):  
Tomoya NAKAMURA ◽  
Yota TOGASHI ◽  
Kiwamu TSUNO ◽  
Noriyuki OKANO ◽  
Yukinori KOYAMA
Keyword(s):  
Construction Method ◽  
Bolted Joints ◽  
Bending Test ◽  
Full Size ◽  
Steel Pipes
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