SAS: A Tool for the GQM+Strategies Grid Derivation Process

2010 ◽  
pp. 291-305 ◽  
Author(s):  
Vladimir Mandić ◽  
Markku Oivo
Keyword(s):  
Derivation Process

Finite Volume Method for Computation of Water Hammer in Conical Tubes

2014 ◽  
Vol 563 ◽  
pp. 266-269
Author(s):  
Xiu Long Zhao ◽  
Jian Zhang ◽  
De Shuang Yu
Keyword(s):  
Finite Volume Method ◽  
Finite Volume ◽  
High Accuracy ◽  
Water Hammer ◽  
Simple Derivation ◽  
Conical Tube ◽  
Discrete Equations ◽  
Volume Method ◽  
Approximate Treatment ◽  
Derivation Process

The most traditional way to calculate water hammer in the conical tube is using some small discrete equivalent uniform tubes to replace it. this approximate treatment can not show the much accurate results of the conical tube,but also not reflect the actual physical discontinuities of the system.This paper use finite volume method to integrate water hammer equations in conical tubes on spatial and temporal scales.Compare the results of FVM discrete equations with MOC. Conclusion shows that: the new discrete equations not only has high accuracy and stability in the calculation of water hammer in conical tubes,but also has a simple derivation process and clear physical meanings.This method provides a new way of thinking in water hammer calculation of conical tubes.

scholarly journals Morphosyntax of Tae’ Language (Morfosintaksis Bahasa Tae’)

2016 ◽  
Vol 7 (3) ◽  
pp. 491
Author(s):  
Idawati Idawati ◽  
Ahmad Tolla ◽  
Kamaruddin Kamaruddin ◽  
Ramly Ramly
Keyword(s):  
Research Method ◽  
Field Research ◽  
Field Method ◽  
Complete Data ◽  
Basic Construction ◽  
Derivation Process

This research aims to convey themorphosyntax in Tae’ language.Thisis descriptive qualitativeresearchsupported by library and field method. The library and field research method  aims  to find the detail and complete data. Moreover, the researchanalyzes words, phrases, clauses, and sentences in Tae’ languageas primary data.The results show that there are some features that mark morphosyntax in Tae’ language. They are reduplication process, derivational affixation, and sentence structures that describe the word orders of Tae’ language. Reduplications of Tae’ language are containing of full and partial reduplication. Whereas, thederivational affixations of Tae’ language are containing of prefixes and suffixes. The form of prefixes is ma-, ku-, na- di-, and si-. And, the form of suffixes is –i, - ko, and –mu. Those affixes are derived from derivation process namely the basic construction or sentence structures.

CORM

2012 ◽  
pp. 174-201
Author(s):  
Hoda Mamdouh Hassan
Keyword(s):  
Complex System ◽  
Network Design ◽  
Computer Networks ◽  
Reference Model ◽  
Network Architectures ◽  
Engineering Approach ◽  
Engineering Discipline ◽  
Technological Constraints ◽  
System Characteristics ◽  
Derivation Process

Designing future computer networks dictates an eclectic vision capable of encompassing ideas and concepts developed in contemporary research unfettered by today’s operational and technological constraints. However, unguided by a clear articulation of core design principles, the process of network design may be at stake of falling into similar pitfalls and limitations attributed to current network realizations. This chapter presents CORM: a clean-slate Concern-Oriented Reference Model for architecting future computer networks. CORM stands as a guiding framework from which several network architectures can be derived. CORM represents a pioneering attempt within the network realm, and to the author’s knowledge, CORM is the first reference model that is bio-inspired, accounts for complex system characteristics, and applies a software engineering approach to network design. Moreover, CORM’s derivation process conforms to the Function-Behavior-Structure (FBS) engineering framework, which is credited to be applicable to any engineering discipline for reasoning about, and explaining the process of design.

scholarly journals Study on the Mathematical Model of Vacuum Breaker Valve for Large Air Mass Conditions

Water ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1358
Author(s):  
Zhang ◽  
Fan ◽  
Yu ◽  
Zhang ◽  
Lv ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Theoretical Basis ◽  
Isothermal Process ◽  
Air Mass ◽  
Protection Scheme ◽  
Calculation Results ◽  
Air Valve ◽  
The Mathematical Model ◽  
Valve Model ◽  
Derivation Process

The mathematical model of vacuum breaker valve is significant to the protection scheme. The more accurate the vacuum breaker valve model, the more reliable the calculation results. In this study, the application conditions of the air valve model are analyzed according to the assumptions used in the derivation, and the contradictions between these assumptions are proposed. Then, according to the different working characteristics between the vacuum breaker valve on the siphon outlet pipe and the air valve, the vacuum breaker valve model is deduced based on the modified assumptions. In the derivation process, the thermodynamic change of the gas in the vacuum breaker valve is assumed to follow the isentropic process rather than an isothermal process, and the water level in the vacuum breaker valve is considered to be changeable. An engineering case is introduced, and the results calculated according to the vacuum breaker valve model are compared with those resulting from the air valve model. The results indicate that the vacuum breaker valve model is suitable for large air mass conditions and can provide a theoretical basis for the numerical simulation and settings of vacuum breaker valves.

Automating the product derivation process of multi-agent systems product lines

2012 ◽  
Vol 85 (2) ◽  
pp. 258-276 ◽  
Author(s):  
Elder Cirilo ◽  
Ingrid Nunes ◽  
Uirá Kulesza ◽  
Carlos Lucena
Keyword(s):  
Multi Agent Systems ◽  
Product Lines ◽  
Agent Systems ◽  
Multi Agent ◽  
Derivation Process

Dynamic change and derivation process of FC and DFC through G1, S and G2 phases in HeLa cells

2006 ◽  
Vol 30 (10) ◽  
pp. 836-840 ◽  
Author(s):  
Fengcai Wang ◽  
Guangbin Shang ◽  
Shui Hao ◽  
Mingda Jiao
Keyword(s):  
Hela Cells ◽  
Dynamic Change ◽  
Derivation Process

Pre-Estimating Dynamically the Optimum of Extremum Value Control System with Large Time Delay Element Based on Correlation Identification

2012 ◽  
Vol 591-593 ◽  
pp. 1558-1562
Author(s):  
Guo Qiang Li ◽  
Yong Qin Liu ◽  
Wen Jiang Liu
Keyword(s):  
Control System ◽  
Time Delay ◽  
Transfer Function ◽  
Large Time ◽  
Linear Part ◽  
High Order ◽  
Delay Element ◽  
System A ◽  
Extremum Value ◽  
Derivation Process

As to the optimum of extremum value controlled plant, if the transfer function of its linear part is only with the high order dynamic elements, the optimum of extremum value control system could be dynamically pre-estimated by using the method based on correlation identification we presented, the pre-estimating method has the estimate speed quickly, anti-jamming ability strong, accurate, highly effective and so on the merits. However, if the controlled plant is simultaneously with high order dynamic elements and a large time delay element, the method could not be used directly to pre-estimate dynamically the optimum of the extremum value control system. A new improved pre-estimating method is presented so as to resolve the problem above. After we have in detail analyzed the derivation process of the pre-estimating method we presented, Fully taking into account the effects of large time-delay element, a number of conditions have been improved, the algorithm based on correlation identification has been extended, the optimum of extremum value control system with a large time delay element is well resolved by the extended algorithm.

Curvature Analysis of Conjugate Surfaces via a Tensor Approach

2012 ◽  
Vol 163 ◽  
pp. 251-255
Author(s):  
Peng Wang ◽  
Yi Du Zhang ◽  
Jie Deng
Keyword(s):  
Rigid Body ◽  
Helical Gear ◽  
Body Motion ◽  
Local Geometry ◽  
Line Contact ◽  
Rotation Tensor ◽  
Curvature Analysis ◽  
Conjugate Surfaces ◽  
Invariant Approach ◽  
Derivation Process

A novel invariant approach is proposed for derivation of curvature relationship between conjugate surfaces of line contact. Unlike other approaches found in the literature, tensor analysis is applied to the derivation process in which rigid-body motion is represented by rotation tensor and the local geometry of surface is expressed by curvature tensor, and the final result is given in a clear and compact form. An example of helical gear is provided to illustrate the application of the proposed approach.

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