A hybrid framework for evaluating the performance of port container terminal operations: Moroccan case study

This work intends to integrate artificial neural network (ANN) and data envelopment analysis (DEA) in a single framework to evaluate the performance of operations in the container terminal. The proposed framework is based on three steps. In the first step, a proposed identify the performance measures objectives and the indicators affecting the system. In the second step, the efficiency scores of the system are computed by using the Charnes Cooper and Rhodes (CCR) model (oriented inputs). In the last step, the Moth Search Algorithm (MSA) is employed as a new method for training the Feedforward Neural Network (FNN) to determine the efficiency scores. To demonstrate the efficacy of the proposed framework, two container terminals of Tangier and Casablanca are adopted to evaluate the performance

Use of DELPHI-AHP Method to Identify annd Analyze Risks in Seaport Dry Port System

The dry port concept has recently gained rising consideration in the multimodal transport context from the point of view both of researchers and stakeholders related to the benefits of the seaport dry port system. Given the relevance of the topic, the present paper aims to identify the potential risk factors of the three major parts that constitute the seaport dry port system and present a conceptual framework to facilitate risk factors analysis. Based on a three-step approach, starting with a systematic literature review, which resulted in 204 collected and examined papers, which allowed identifying 181 potential risk factors with an average of 60 risk factors in each major part of the studied system. In addition, we used a survey based on the Delphi technique to ensure a good extraction of data from 12 selected experts related to the seaport dry port system; then, we used the MCDM (Multiple-Criteria Decision-Making) method AHP (Analytic Hierarchy Process) in order to: 1) present a hierarchy that simplifies the complexity of the studied system in an organized structure; 2) analyze and assess risk factors based on the identified criteria. A case study involving the Moroccan seaport dry port system of Casablanca illustrates that the seaport part is critical and any major risk factor in this part can even paralyze the operations of the whole system, especially if that risk factor belongs to the human factors category or economic risk category, which is also considered in the study as a critical category

Systematic Review of Literature on Dry Port Concept Evolution

Dry port plays an important role in supply chain management and mitigates seaport problems. The aim of this paper is to review the dry port concept over the different phases. Today there are different types of dry ports, different interpretations on the dry port life cycle, and different relations with seaport. We will provide a clear vision on the concept development and the advantages that can be added to the seaport and transportation flow. Then, the study will show the evolution of the research community interest on the concept. In the first step, we will briefly present all the challenges faced by seaports today. Next, we will undertake a systematic literature review in order to provide a global vision able to answer questions concerning dry port concept, types, research evolution. Finally, we will present some research topics that open for us at the dry port seaport system

A lattice Boltzmann coupled to finite volumes method for solving phase change problems

A numerical scheme coupling lattice Boltzmann and finite volumes approaches has been developed and qualified for test cases of phase change problems. In this work, the coupled partial differential equations of momentum conservation equations are solved with a non uniform lattice Boltzmann method. The energy equation is discretized by using a finite volume method. Simulations show the ability of this developed hybrid method to model the effects of convection, and to predict transfers. Benchmarking is operated both for conductive and convective situation dominating solid/liquid transition. Comparisons are achieved with respect to available analytical solutions and experimental results

The influence of organizational culture on performance: Case study of the Moroccan ATM system

According to Ferreira and Otley (2009) contextual factors and organizational culture are considered as variable factors that have a significant impact on the performance management system framework, which comprises 12 questions/issues. The intention of this work is to define how organizational culture influences the question/issue of performance information use, through the example of Air Traffic Management (ATM). In fact, based on Schein’s model we determine how two of the levels of organizational culture influence the performance information use within the Moroccan ATM system

Study of A Thermal Energy Storage System Using the Lattice Boltzmann Method

Thermal energy storage (TES) systems are much preferred in many engineering applications, which have the ability to overcome the mismatch between energy supply and energy demand. TES can be used to store thermo-chemical, sensible, or latent heat or a combination of these. Among the three forms, latent heat thermal energy storage (LHTES) has grown considerably in importance over recent years as a promising alternative to traditional systems. These systems use phase change materials (PCM), in simple or cascade configuration, and store the latent heat of melting (charging process) and release it during solidification (discharging process). Among different configurations of LHTES systems, tube and shell heat exchangers represent a promising and simple design in high temperature PCM. In this paper, we present a new numerical study involving a tube and shell heat exchanger to evaluate the heat storage phenomena. A case study and numerical results are provided using the Lattice Boltzmann Method

Développement de schémas hybrides de tvpe Lattice Boltzmann (volumes Finis pour la modélisation des transferts de chaleur et de masse en projection thermique)

Dans ce travail de thèse, le transfert de chaleur et de masse est modélisé numériquement par la méthode de Boltzmann sur réseau (Lattice Boltzmann). Dans un premier temps, les fondements de base de cette méthode numérique sont présentés. Une attention particulière est donnée à l'application de cette méthode aux problèmes de diffusion multidimensionnels. Dans un second temps, l'extension de la méthode de Boltzmann sur réseau est traitée: d'une part pour résoudre les phénomènes de transmission à l'interface, d'autre part pour résoudre un problème diphasique solide-liquide par l'élaboration d'un couplage entre la méthode LBM non uniforme et la méthode des volumes finis.In this thesis, we formulate and implement the numerical modeling of the heat and the mass transfer by the Lattice Boltzmann method (LBM). In a first part we present the basic foundations of this numerical method. Particular attention is given to the application of this method to multidimensional diffusion problems. In a second part we treat an extension of the Lattice Boltzmann method: firstly to solve the transmission phenomena at the interface, secondly to solve a two-phase solid-liquid through the development of a coupling between the non-uniform LBM method and finite volume method.LIMOGES-BU Sciences (870852109) / SudocSudocFranceF

The influence of organizational culture on performance: Case study of the Moroccan ATM system

According to Ferreira and Otley (2009) contextual factors and organizational culture are considered as variable factors that have a significant impact on the performance management system framework, which comprises 12 questions/issues. The intention of this work is to define how organizational culture influences the question/issue of performance information use, through the example of Air Traffic Management (ATM). In fact, based on Schein’s model we determine how two of the levels of organizational culture influence the performance information use within the Moroccan ATM system