Logical control of the catenary maintenance in the current collection system at intensive train traffic

2021 ◽  
pp. 78-88
Author(s):  
A. T. Burkov ◽  
M. F. Mukhamedzhanov
Keyword(s):  
Collection System ◽  
Current Collection ◽  
Logical Control

scholarly journals Validation of an Enclosed Blood Collection System in a Pediatric Laboratory

2018 ◽  
Vol 3 (1) ◽  
pp. 65-78
Author(s):  
Elizabeth P Weinzierl ◽  
Cindy Brawley ◽  
James L Adams ◽  
Beverly B Rogers
Keyword(s):  
Clinical Laboratory ◽  
Blood Collection ◽  
Collection System ◽  
Current Collection ◽  
Tube Type ◽  
Clinically Significant ◽  
Almost All ◽  
Automated Instruments ◽  
Adult Volunteers ◽  
Transfer Device

Abstract Background Preanalytical, analytical, and postanalytical issues are often magnified in pediatric laboratories, and traditional vacuum-based blood tubes can contribute to some of these issues. Because of this, we investigated adopting an enclosed blood collection system that can perform vacuum or gentle aspiration blood collection, eliminating syringes, transfer device, and transfer steps, as well as potentially minimizing preanalytical error in the pediatric laboratory. We embarked on a validation of this tube system, in comparison with our current collection tubes, across most in-house tests at a large pediatric hospital. Methods Twenty adult volunteers were recruited. Blood was drawn into lithium heparin, serum, EDTA, and citrate tubes of each commercial tube type for comparison. For some tests, remnant blood from pediatric syringe draws was used when available. Samples were then processed and analyzed across all general areas of the clinical laboratory, and correlations of the results from the 2 tube systems were performed. Results Across 95 tests in the core laboratory and blood bank, almost all demonstrated clinically acceptable comparisons, with most R values >0.90. Only 3 of 95 tests demonstrated clinically significant differences between the tube systems. Conclusions Our validation of the enclosed blood collection system demonstrated acceptable results when compared with our current collection tubes. Additionally, with some minor modifications, our automated instruments could utilize ultralow-volume tubes from the enclosed blood collection system for direct tube sampling, which is impossible using our current small-volume tubes with our main chemistry analyzer.

Optimization of Gas Delivery and Current Collecting System in Fuel Cells

2006 ◽  
Author(s):  
S. P. Chen ◽  
P. W. Li ◽  
M. K. Chyu
Keyword(s):  
Fuel Cell ◽  
High Power ◽  
Concentration Polarization ◽  
High Power Density ◽  
Collection System ◽  
Small Current ◽  
Current Collectors ◽  
Current Collection ◽  
Ohmic Losses ◽  
Collecting System

The over-potentials in a fuel cell due to ohmic losses and concentration polarization can be reduced if the gas delivery field and the current collection system are well designed. To obtain such a substantial understanding for designing the gas delivery and current collection system, this study proposed a model to theoretically analyze the current collection process, and finally a method and tool of optimization for scales of gas channels and current collection ribs is presented. The analysis found that small current collectors and collection area is advantageous for getting high power density in both PEMFCs and SOFCs.

Development of Suitable Current Collection System for Increasing the Operational Speed of Shinkansen

2011 ◽  
Vol 131 (3) ◽  
pp. 388-395 ◽  
Author(s):  
Kunio Ikeda ◽  
Kentarou Nishi ◽  
Takeshi Kurita
Keyword(s):  
Collection System ◽  
Current Collection

Analysis of the environmental load from the electrified transport current collection system

2018 ◽  
pp. 69-74
Author(s):  
Alexander Nikolayevich Smerdin ◽  
◽  
Alexey Evgenyevich Chepurko ◽  
Keyword(s):  
Transport Current ◽  
Environmental Load ◽  
Collection System ◽  
Current Collection

Research of PMSM Stator Current Collection System Design Based on C8051F500 and AD7865

2013 ◽  
Vol 433-435 ◽  
pp. 1458-1462
Author(s):  
Gong Ding Bai ◽  
Jun Hua Liu ◽  
Wei Gang Shan ◽  
Bo Zhao ◽  
Xue Mei Zhang ◽  
...  
Keyword(s):  
System Design ◽  
Permanent Magnet ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Permanent Magnet Synchronous Motor ◽  
Hybrid Vehicle ◽  
Collection System ◽  
Current Collection ◽  
Stator Current ◽  
Three Phase

Permanent magnet synchronous motor (PMSM) now is widely used in hybrid vehicle drive area. When the space vector pulse width modulation (SVPWM) is used in PMSM control, the stator three phase currents must be collected for its control calculation. In this paper, a PMSM stator current collection system based on C8051F500 and AD7865 is designed, and proved to be effective with experiments.

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