Design of a Race-Track Coil For Measurements of Ac Power Losses in High-Temperature Superconducting Tapes

2014 ◽  
Vol 21 (2) ◽  
pp. 293-304 ◽  
Author(s):  
Stanisław Trojanowski ◽  
Marian Ciszek ◽  
Eduard Maievskyi
Keyword(s):  
Design Method ◽  
Superconducting Tapes ◽  
Power Losses ◽  
Ac Power ◽  
Magnetization Loss ◽  
Field Uniformity ◽  
Electronic Measurement ◽  
Race Track ◽  
Ac Magnetization

Abstract One of the most important parameters, crucial to applications of superconductors in cryo-electrotechnique, is power loss. Measurements of losses in superconducting long sample wires require AC magnetic fields of a special geometry and appropriate high homogeneity. In the paper part of the theoretical basis for calculations and a simple design method for a race-track coil set are presented. An example of such home-made coils, with a magnetic field uniformity of about 0.2 % over the range of about 8 cm, is given. Also a simple electronic measurement system for the determination of AC magnetization loss in samples of superconducting tapes is presented.

AC magnetization loss characteristics of HTS coated-conductors with magnetic substrates

2007 ◽  
Vol 463-465 ◽  
pp. 766-769 ◽  
Author(s):  
O. Tsukamoto ◽  
M. Liu ◽  
S. Odaka ◽  
D. Miyagi ◽  
K. Ohmatsu
Keyword(s):  
Coated Conductors ◽  
Magnetization Loss ◽  
Ac Magnetization

scholarly journals Fitness Center Design with Natural Shapes and Forms Approach in Surabaya

2021 ◽  
Vol 1 (1) ◽  
pp. 15-21
Author(s):  
Pande Putu Dwi Novigga Artha
Keyword(s):  
Psychological Health ◽  
Design Method ◽  
Design Criteria ◽  
Fitness Center ◽  
The People ◽  
Physical And Psychological Health ◽  
Special Approach ◽  
The City

Density of Surabaya city affects the physical and psychological health of the people. Productive activities accompanied by a dense environment mean that people rarely have time to exercise. To increase the awareness and interest of the people of the city of Surabaya to exercise, it is necessary to have a sports facility with a special approach. Biophilic theory, especially the natural shapes and form approach, can be a solution to these problems. The return of nature's essence into the building can provide positive benefits for human physical and physical health. Previous research has discussed the determination of fitness center design criteria with the natural shapes and forms approach in Surabaya. In this follow-up journal, we will discuss the final result or application of the design criteria into an architectural work. The design method used is the force based framework method. The force in the design of this building in addition to the surrounding natural environment is the natural perception of the community which is transformed into architectural forms. It aims to increase interest in training and restoring the user's physical and psychological health without having to go far out of town to look for nature.

A-optimal design method to determine the regularization parameter of coseismic slip distribution inversion

2020 ◽  
Vol 221 (1) ◽  
pp. 440-450
Author(s):  
Leyang Wang ◽  
Wangwang Gu
Keyword(s):  
Optimal Design ◽  
Regularization Parameter ◽  
Design Method ◽  
Slip Distribution ◽  
Coseismic Slip ◽  
Seismic Slip ◽  
Regularization Parameters ◽  
Curve Method ◽  
Optimal Design Method

ABSTRACT The key to the inversion of a coseismic slip distribution is to determine the regularization parameters. In view of the determination of regularization parameters in seismic slip distribution inversion, the A-optimal design method is proposed in this paper. The L-curve method and A-optimal design method are used to design simulation experiments, and the inversion results show that the A-optimal design method is superior to the L-curve method in determining the regularization parameters. These two methods are also used to determine the regularization parameters of the L'Aquila and Lushan earthquake slip distribution inversions, and the results are consistent with those of other research conducted at home and abroad. Compared with the L-curve method, the A-optimal design method has the advantages of a high accuracy that does not rely on the data fitting accuracy.

scholarly journals Kinetic study of hydrolysis of ethyl acetate using caustic soda

2018 ◽  
Vol 7 (4) ◽  
pp. 1995 ◽  
Author(s):  
Mostafa Ghobashy ◽  
Mamdouh Gadallah ◽  
Tamer T.El-Idreesy ◽  
M. A.Sadek ◽  
Hany A.Elazab
Keyword(s):  
Caustic Soda ◽  
Ethyl Acetate ◽  
Flow Reactor ◽  
Design Method ◽  
Plug Flow ◽  
Tubular Reactor ◽  
Acid Base ◽  
Chemical Reaction Kinetics ◽  
Hydrolysis Of

We report here, the hydrolysis of ethyl acetate by using caustic soda which is followed by means of conductance measurements which is widely used in chemical industry. The main aim of this research is to study the parameters of production of ethyl acetate by chemical reaction kinetics using an anion ion-exchange acting as a catalyst and acid-base titrations. The reaction of ethyl acetate and sodium hydroxide (caustic-soda) is done in a plug-flow reactor (steady-state tubular reactor) under the effect of different parameters including temperature, concentration and flow-rate, which allows the determination of activation energy and rate constants, due to large number of experiments. Factorial design method is used for the calculations of the experiment. It was determined that the order of the reaction is a second-order reaction.  

Design of Active Filter Based on MATLAB

2014 ◽  
Vol 668-669 ◽  
pp. 862-865
Author(s):  
Sheng Hui Xu
Keyword(s):  
Transfer Function ◽  
Design Method ◽  
Active Filter ◽  
Fast Method ◽  
Performance Simulation ◽  
Pass Filter ◽  
Circuit Performance ◽  
High Pass ◽  
Manual Calculation

A new fast design method for active filter is proposed which is different from the conventional ones, as the conventional methods such as the application of manual calculation tends to be time-consuming, complex and pone to error in determination of active filter’s transfer function, also the application of table look-up can only apply to the filter of limited order less than 10. This fast method is illustrated in detail by a practical example of high pass filter. First, transfer function can be rapidly calculated in MATLAB, then the filter circuit performance simulation is presented through EDA, the results show that the proposed method enhances the efficiency of the design as it is fast, precise and direct, what’s more, the fast method is of practical guiding significance to active filter’s design, especially for high order ones.

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