The Operational Principle and Problem Frames

2010 ◽  
pp. 143-165 ◽  
Author(s):  
Michael Jackson
Keyword(s):  
Operational Principle ◽  
Problem Frames

An Extended Meta-Model of Problem Frames for Enriching Environmental Descriptions

2021 ◽  
Author(s):  
Hongbin Xiao ◽  
Zhi Li ◽  
Yilong Yang ◽  
Jie Deng ◽  
Shangfeng Wei
Keyword(s):  
Meta Model ◽  
Problem Frames

scholarly journals Simplifying the Formal Verification of Safety Requirements in Zone Controllers Through Problem Frames and Constraint-Based Projection

2018 ◽  
Vol 19 (11) ◽  
pp. 3517-3528 ◽  
Author(s):  
Zhengheng Yuan ◽  
Xiaohong Chen ◽  
Jing Liu ◽  
Yijun Yu ◽  
Haiying Sun ◽  
...  
Keyword(s):  
Formal Verification ◽  
Safety Requirements ◽  
Problem Frames

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.

scholarly journals Operational principle of new NIR spectrometers (in French)

Analusis ◽  
1998 ◽  
Vol 26 (4) ◽  
pp. 29-32
Author(s):  
D. Bertrand
Keyword(s):  
Operational Principle
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