Sustainability evaluation of agricultural greenhouse structures in southern of Algeria using AHP, case of study: Biskra province

The protected cultivation of vegetables has considerably developed in southern ofAlgeria.  However, the sustainability of this system has not been evaluated.  The aim of this study is to find a greenhouse structure (Tunnel or Canarian) that promotes the agriculture sustainability in Biskra province using analytic hierarchy process (AHP).  In that event, a survey was conducted in this region where nine criteria were selected according to the local conditions.  The results obtained revealed that the farmer and the agricultural specialists shared the same vision regarding the weight of economic indicators with 74% and 66%, respectively.  The AHP analysis provided that the Canarian greenhouse (CG) presented the ideal structure.  This work might also help the decision makers and the researchers to implement a sustainable development policy. 

A SPEMOntology for Software Processes Reusing

Reusing the best practices and know-how capitalized from existing software process models is a promising solution to model high quality software processes. This paper presents a part of AoSP (Architecture oriented Software Process) for software processes reuse based on software architectures. The solution is proposed after the study of existing works on software process reusing. AoSP approach deals with the engineering "for" and "by" reusing software processes, it exploits the progress of two research fields that promote reusing in order to improve the software process reusing: domain ontologies and software architectures. AoSP exploits a domain ontology to reuse software process know-how, it allows retrieving, describing and deploring software process architectures. This article details the engineering "for" reusing SPs step of AoSP, it explains how the software process architectures are described and discusses the software process ontology conceptualization and software process knowledge acquisition

A MOF-based social web services description metamodel

© Copyright 2016 by SCITEPRESS - Science and Technology Publications, Lda. All rights reserved. To promote and support the development and use of social Web services by the IT community on the Web, both social Web service-based applications and their support platforms should evolve independently from each other while sharing a common model that represents the characteristics of these social Web services. To achieve this duality, this paper proposes a model-driven approach. First, the approach identifies a social Web service\u27s properties. Then a Meta-Object-Facility (MOF)-based social Web services description metamodel is developed. Finally, a prototype illustrates how the MOF-based metamodel is used

ADAPTIVE GUIDANCE MODEL BASED SIMILARITY FOR SOFTWARE PROCESS DEVELOPMENT

ABSTRACT This paper describes a modeling approach SAGM (Similarity fo

Evolution of Software Processes and of their Models: A Multiple Strategy Approach

This paper deals with a new approach to modify software process models and their software processes. Such an approach, in contrast with existing ones, supports the different evolution strategies for the software process models, and allows the adaptation of software process during execution. The integration of these two types of evolution is based on a chaining of phases (generation/evolution/simulation/ execution). It allows the change of software process models as and when executed without inconsistencies, to perfect software processes through simulation and to define new ones dynamically

Global Estimation for the Convoy of Autonomous Vehicles using the Sliding-mode Approach

International audienc

Non-linear Control based on State Estimation for the Convoy of Autonomous Vehicles

International audienceIn this paper, a longitudinal and lateral control approach based on a nonlinear observer is proposed for a convoy of autonomous vehicles to follow a desired trajectory. To authors best knowledge, this topic has not yet been sufficiently addressed in the literature. The modeling of the vehicles convoy is revisited using robotic method, for simulation purposes and control design. With these models, a sliding mode observer is proposed to estimate the states of each vehicle in the convoy from the available sensors, then a sliding mode control based on this observer is used to control the longitudinal and lateral movement. The validation and performance evaluation are done using the well-known driving simulator Scanner-Studio. The results are presented for different maneuvers of 5 vehicles