Etymology as an operational principle

1979 ◽  
pp. 829
Author(s):  
Hansjakob Seiler
Keyword(s):  
Operational Principle

scholarly journals A Concept of Determining the Relation between Load and Wear of Tribological Systems of Ship Main Selfignition Engines by Using Probabilistic Approach

2018 ◽  
Vol 25 (4) ◽  
pp. 130-138
Author(s):  
Jerzy Girtler
Keyword(s):  
Probabilistic Approach ◽  
Random Variables ◽  
Coefficient Of Correlation ◽  
Ship Propulsion ◽  
The Third ◽  
Operational Principle ◽  
External Conditions ◽  
Excessive Load

Abstract This paper presents a proposal of simultaneous consideration of load and wear associated with it , of tribological systems of ship main engines (intended for ship propulsion) . Based on results of investigations it was assumed that both the load Q (i.e. a cause of wear ) and the wear Z (i.e. an effect of load occurrence) considered in a given time t (0 ≤ t ≤ tn) are random variables Qt and Zt ,respectively. There was characterized operational principle of ship main engines in definite external conditions (WZ) as well as consequences of excessive load of engines. Three hypotheses highlighting relations existing between load and wear of the above mentioned systems, have been proposed. The first of them deals with explanation of stochastic relation between load and wear, the second highlights why it is possible to assume that the load Qt and the wear Zt are positively correlated , and the third - why it is possible to assume that coefficient of correlation between Qt and Zt may be taken close to one.

Transport Theory in Membrane Contactor: Operational Principle

2021 ◽  
pp. 45-98
Author(s):  
Mohammad Younas ◽  
Waheed Ur Rehman ◽  
Mashallah Rezakazemi
Keyword(s):  
Transport Theory ◽  
Membrane Contactor ◽  
Operational Principle

3114 New Idea for the operational principle of the device for climbing and descending the stairs

2005 ◽  
Vol 2005.14 (0) ◽  
pp. 137-140
Author(s):  
Satoshi Matsumoto ◽  
Toshinari Suma ◽  
Tadaaki Tominaga ◽  
Teruo Tsuji ◽  
Masayuki Hikita ◽  
...  
Keyword(s):  
Operational Principle

Design of the Thermoelectric Generator

2010 ◽  
Vol 143-144 ◽  
pp. 543-546
Author(s):  
Gui Lin Yang
Keyword(s):  
Thermoelectric Power ◽  
Thermoelectric Generator ◽  
Block Diagram ◽  
Electric Energy ◽  
Thermoelectric Module ◽  
Heat Energy ◽  
Operational Principle ◽  
Power Modules ◽  
Current Limiting ◽  
Natural Temperature

Thermoelectric Generator is a device using the widespread natural temperature to generate electricity. On the basis of investigations and experiments, this paper fully expounded thermoelectric generator’s significance, system block diagram, circuits, operational principle, application foregrounds and etc. Semiconductor thermoelectric module and the controller compose the thermoelectric generator, semiconductor thermoelectric power modules change heat energy into electric energy, the electric energy is stored in the controller's battery by the charging circuit. The controller has many functions such as current limiting, under voltage and other functions. At the same time, we had also designed the step-up circuit, in this way, the thermoelectric generator can output higher voltage. The experiment results and application show the thermoelectric generator has good performance and powerful function, it is worth spreading.

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