Switching and performance variations of on-orbit BDS satellite clocks

2019 ◽  
Vol 63 (5) ◽  
pp. 1681-1696 ◽  
Author(s):  
Guanwen Huang ◽  
Bobin Cui ◽  
Qin Zhang ◽  
Pingli Li ◽  
Wei Xie
Keyword(s):  
And Performance ◽  
Performance Variations

scholarly journals Electrophysiological and performance variations following driving events involving an increase in mental workload

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Hugo Loeches De La Fuente ◽  
Catherine Berthelon ◽  
Alexandra Fort ◽  
Virginie Etienne ◽  
Marleen De Weser ◽  
...  
Keyword(s):  
Mental Workload ◽  
And Performance ◽  
Performance Variations

Performance Variations Among Strategic Group Members: An Examination of Individual Firm Capability

1989 ◽  
Vol 15 (4) ◽  
pp. 649-661 ◽  
Author(s):  
Michael W. Lawless ◽  
Donald D. Bergh ◽  
William D. Wilsted
Keyword(s):  
Explanatory Power ◽  
Group Analysis ◽  
Performance Model ◽  
Strategic Groups ◽  
Strategic Group ◽  
Common Strategy ◽  
Firm Capability ◽  
Group Members ◽  
And Performance ◽  
Performance Variations

Because of inconsistent empirical evidence, the membership-performance model pervasive in strategic group analysis is re-examined. We propose that individualfirm capabilities, which reflect capacity to implement or change strategy, moderate the effect of members' shared strategy characteristics on performance. Controlling for market structure, we defined two strategic groups based on common strategy characteristics among 55 manufacturing firms. We found significant differences in performance and capabilities within each group. There was also evidence of a significant correlation between capabilities and performance within each group. We conclude that effects offirms' capabilities should be accountedfor to increase the explanatory power of strategic groups in competitive performance.

Temperature and performance variations along single chamber solid oxide fuel cells

2009 ◽  
Vol 186 (1) ◽  
pp. 89-95 ◽  
Author(s):  
Bertrand Morel ◽  
Réal Roberge ◽  
Sylvio Savoie ◽  
Teko W. Napporn ◽  
Michel Meunier
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Single Chamber ◽  
And Performance ◽  
Performance Variations

285°C Resistor Drift and Failure Analysis

2010 ◽  
Vol 2010 (HITEC) ◽  
pp. 000259-000266
Author(s):  
Mark Hahn ◽  
Ron Smith ◽  
Milton Watts
Keyword(s):  
Thin Film ◽  
High Impact ◽  
Life Testing ◽  
Circuit Performance ◽  
Root Cause ◽  
And Performance ◽  
The Many ◽  
Performance Variations ◽  
Device Test ◽  
Scanning Electron

In order to improve the reliability of down-hole electronics Quartzdyne Electronics has invested over 10 million device test hours in life testing of our circuits in both powered and un-powered modes. In addition to time at temperature, these tests include thermal cycling and high impact drop testing. While resistors tend to be generally reliable, we have observed resistance drift in some units that has pushed circuit performance outside of accepted electrical specifications. In an attempt to comprehend the root cause(s) of resistance drift, failed samples have been studied in a scanning electron microscope. The resulting observations have led to structured designs of experiment to isolate the many possible root causes. This paper will present these observations, experimental outcomes and draw conclusions surrounding thick film vs. thin film performance, variations between value ranges, differences between vendors, and a possible link relating the drift mechanism to the method and extent of value trimming. This information should be useful to resistor vendors interested in improving the quality and performance of their products.

Assessment of a Transport Company in Terms of Performance Utilisation of Vehicles

2013 ◽  
Vol 16 (1) ◽  
pp. 1-4
Author(s):  
Ľubomír Hujo ◽  
Juraj Jablonický ◽  
Zdenko Tkáč ◽  
Michal Angelovič ◽  
Brigita Rečková
Keyword(s):  
Freight Transport ◽  
Travel Distance ◽  
Road Freight ◽  
And Performance ◽  
National Road ◽  
Performance Variations

Abstract Our study is focused on solution opportunities of national road freight transport in a selected company in terms of performance utilisation of vehicles. The indicators of time and performance utilisation of lorries and their trailer units are used for analysing the transport company. Based on correlative assessment, it is possible to determine the effects of year-to-year performance variations of vehicles in terms of running performances, transport performances, average travel distance and average loading.

scholarly journals Planar-type thermally chargeable supercapacitor without an effective heat sink and performance variations with layer thickness and operation conditions

2020 ◽  
Vol 268 ◽  
pp. 114975 ◽  
Author(s):  
Aqeel Mohammed Abdul Mageeth ◽  
SungJin Park ◽  
Myunghwan Jeong ◽  
Woochul Kim ◽  
Choongho Yu
Keyword(s):  
Layer Thickness ◽  
Heat Sink ◽  
Operation Conditions ◽  
Effective Heat ◽  
And Performance ◽  
Performance Variations
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