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1.
Yamine Ait Ameur Frédéric Boniol Virginie Wiels 《International Journal on Software Tools for Technology Transfer (STTT)》2010,12(1):1-7
Nowadays, it is well accepted that the development of critical systems involves the use of formal methods. One of the major
fields where these methods made a lot of progress are the avionics, aerospace and more generally transport areas. Several
methods, tools and techniques have been applied for the development of such systems in different parts of the world, and they
have been actually put into practice during the development of specific aircraft programs. The aim of this introductory article
and of this STTT special issue is to propose a brief overview of the state-of-the-art of current researches in formal methods
applied to the development of avionics and aerospace systems and more broadly to take stock of the integration of formal methods
in the aerospace industry. 相似文献
2.
Boniol Frédéric Wiels Virginie Aït-Ameur Yamine Schewe Klaus-Dieter 《International Journal on Software Tools for Technology Transfer (STTT)》2017,19(2):133-140
International Journal on Software Tools for Technology Transfer - 相似文献
3.
This experimental investigation was conducted to determine the effects of cutting conditions on surface roughness and cutting forces in hard turning of X38CrMoV5-1. This steel was hardened at 50 HRC and machined with CBN tool. This is employed for the manufacture of helicopter rotor blades and forging dies. Combined effects of three cutting parameters, namely cutting speed, feed rate and depth of cut, on the six performance outputs-surface roughness parameters and cutting force components, are explored by analysis of variance (ANOVA). Optimal cutting conditions for each performance level are established. The relationship between the variables and the technological parameters is determined through the response surface methodology (RSM), using a quadratic regression model. Results show how much surface roughness is mainly influenced by feed rate and cutting speed. The depth of cut exhibits maximum influence on cutting force components as compared to the feed rate and cutting speed. 相似文献
4.
H. Azouaoui N. El Hatimi N. El Yamine 《Bulletin of Engineering Geology and the Environment》2000,59(1):59-74
The Plio-Quaternary formations of the Casablanca area consist of a sequence of cross-bedded strata. They frequently begin with a lumachelle conglomerate occasionally associated with gravels and marine calcarenite. The marine deposits are overlain by yellow and grey dune sandstones, locally oxidized at depositional horizons. These dunal calcarenites have been extensively exploited and hence their sedimentological and geotechnical parameters have been determined from numerous samples taken from the quarries in the region. The sedimentological study results show that these generally homogeneous materials consist mainly of well-graded fine to coarse carbonate sands (98%) containing both bioclasts and calcareous cements. It is clear that at the time of deposition there was little detrital material, with the marine deposits formed mainly of shell debris. Study shows that the marine deposits underwent early lithification in a shallow marine environment which then continued in a continental environment by the movement of meteoric water. The marine deposits are well cemented. They have a low degree of dissolution but quite a high degree of recrystallization, notably towards the bottom of the individual horizons. The dunal deposits which underwent lithification in a continental environment are characterized by a very low cementation, mainly at point contact, a high dissolution and a weak recrystallization. The difference in diagenesis affects both the physical and mechanical features of these Plio-Quaternary calcarenites. From a geotechnical point of view, the consolidated marine and dunal deposits have a weak to medium compressive strength (502), a very weak resistance to shocks (453. 8.?Density and percentage CaCO3. 9.?Compression resistance and percentage CaCO3. In view of the graph relationships, it is possible to estimate the other parameters from the determination of a single physical or mechanical feature of the calcarenite. However, the sedimentological and petrographical analyses show that the following factors can be subject to quantitative variations: (1) the carbonate content; (2) the nature of the bioclastic elements; (3) the grain size of the detrital elements; (4) the cement percentage and its grain size; and (5) the importance of dissolution and the vacuum percentage. These factors control the physical and mechanical features of the Plio-Quaternary formations of the Casablanca area. As a consequence, it is suggested that when considering the sedimentological features and physical and mechanical characteristics of the Plio-Quaternary formations of the Casablanca area, the particular deposits must first be categorized into one of the four following facies: lumachelle; marine calcarenite; yellowish dunal calcarenite; or grey dunal calcarenite. 相似文献
5.
Yamine Ait-Ameur Mickael Baron Nadjet Kamel Jean-Marc Mota 《International Journal on Software Tools for Technology Transfer (STTT)》2009,11(3):239-253
This paper presents the use of the B technique in its event based definition. We show that it is possible to encode, using
Event B, the models (i.e., transition systems) associated to a process algebra with asynchronous semantics. The obtained Event
B models consider that the Event B model associated to the left hand side of a BNF rule defining the algebra expressions is
refined by a model corresponding to the right hand side of the same rule. The translation rules of each operator of a basic
process algebra are given. Then, an example illustrating each translation rule is given. This approach is based on a proof
technique and therefore it does not suffer from the state number explosion problem occurring in classical model checking.
The interest of this work is the capability to validate user tasks or scenarios when using a given system and particularly
a critical system. Finally, we discuss the application of this approach for validating user interfaces tasks in the human–computer
interaction area. 相似文献
6.
Yamine Ait-Ameur Mickael Baron 《International Journal on Software Tools for Technology Transfer (STTT)》2006,8(6):547-563
The development of user interfaces (UI) needs validation and verification of a set of required properties. Different kinds
of properties are relevant to the human computer interaction (HCI) area. Not all of them may be checked using classical software
engineering validation and verification tools. Indeed, a large part of properties is related to the user and to usability.
Moreover, this kind of properties usually requires an experimental validation. This paper addresses the cooperation between
formal and experimental HCI properties validation and verification. It focuses on a proof based technique (event B) and a
Model Based System (MBS) based technique (SUIDT). Moreover, this paper tries to bridge the gap between both approaches in
order to reduce the heterogeneity they lead to. 相似文献
7.
Xinxin Wang Yamine Bouzembrak AGJM Oude Lansink H. J. van der Fels-Klerx 《Comprehensive Reviews in Food Science and Food Safety》2022,21(1):416-434
Machine learning (ML) has proven to be a useful technology for data analysis and modeling in a wide variety of domains, including food science and engineering. The use of ML models for the monitoring and prediction of food safety is growing in recent years. Currently, several studies have reviewed ML applications on foodborne disease and deep learning applications on food. This article presents a literature review on ML applications for monitoring and predicting food safety. The paper summarizes and categorizes ML applications in this domain, categorizes and discusses data types used for ML modeling, and provides suggestions for data sources and input variables for future ML applications. The review is based on three scientific literature databases: Scopus, CAB Abstracts, and IEEE. It includes studies that were published in English in the period from January 1, 2011 to April 1, 2021. Results show that most studies applied Bayesian networks, Neural networks, or Support vector machines. Of the various ML models reviewed, all relevant studies showed high prediction accuracy by the validation process. Based on the ML applications, this article identifies several avenues for future studies applying ML models for the monitoring and prediction of food safety, in addition to providing suggestions for data sources and input variables. 相似文献
8.
Abdelmadjid SI SALEM Souad AIT TALEB Kamal AIT TAHAR 《Frontiers of Structural and Civil Engineering》2015,9(2):154
A new concrete-composite beam with high mechanical performances to weight ratio is developed in this study. The proposed design technique consists to embed a cylindrical polymer tube wrapped by a GFRP Jacket in the mechanically ineffective concrete tensile zone. An experimental investigation is carried out on composite beams under bending loads until failure to evaluate the flexural capacity and the corresponding failure mechanisms. Based on the experimental results, statistical and preliminary reliability analyses using the FORM method are performed to assess the safety margin of the new beam. The confrontation between test and simulation results shows a satisfactory agreement, and represents a promising revelation regarding the improvement in terms of strength and ductility of such design compared to conventional reinforced concrete beams with traditional one. 相似文献
9.
The considerable and significant progress achieved in the design and development of new interaction devices between man and machine has enabled the emergence of various powerful and efficient input and/or output devices. Each of these new devices brings specific interaction modes.With the emergence of these devices, new interaction techniques and modes arise and new interaction capabilities are offered. New user interfaces need to be designed or former ones need to evolve. The design of so called plastic user interfaces contributes to handling such evolutions. The key requirement for the design of such a user interface is that the new obtained user interface shall be adapted to the application and have, at least, the same behavior as the previous (adapted) one. This paper proposes to address the problem of user interface evolution due to the introduction of new interaction devices and/or new interaction modes. More, precisely, we are interested by the study of the design process of a user interface resulting from the evolution of a former user interface due to the introduction of new devices and/or new interaction capabilities. We consider that interface behaviors are described by labelled transition systems and comparison between user interfaces is handled by an extended definition of the bi-simulation relationship to compare user interface behaviors when interaction modes are replaced by new ones. 相似文献
10.
Farah Zoubeyr Ait-Ameur Yamine Ouederni Meriem Tari Kamel 《International Journal on Software Tools for Technology Transfer (STTT)》2017,19(4):465-485
International Journal on Software Tools for Technology Transfer - The design and verification of distributed software systems is often hindered by their ever-increasing complexity and their... 相似文献