ABSTRACT We propose a simple analytical jet model of magnetic jets, in which radially averaged profiles main physical quantities are obtained based on conservation laws and some results published general relativistic magnetohydrodynamic simulations. take into account conversion the energy flux to bulk acceleration jets formed around rotating black holes assuming mass continuity equation constan...

Reservoir-induced seismicity is a very important issue in the study of geological analysis and ecoenvironmental impact assessment in hydraulic and hydropower engineering. On the other hand, reservoir-induced seismicity is a necessary consideration in the feasibility study of hydropower project. Due to the complexity in the process of reservoir-induced earthquake and the uncertainty of the influ...

Selecting the best transportation investment project (TIP) is often a difficult task, since many social, environmental and economic criteria have to be considered simultaneously. Evaluating a set of different projects, especially the best set of alternatives, portfolios, is even more complex. Pursuing the goal of selecting the best TIP portfolio, we propose a fuzzy assessment method to aid the ...

Summarizability of OLAP and Statistical Databases is an a extremely important property because violating this condition can lead to erroneous conclusions and decisions. In this paper we explore the conditions for summarizability. We introduce a framework for specifying precisely the context in which statistical objects are defined. We use a three step process to define normalized statistical ob...

This note (motivated by the STSM at the Imperial College London), is devoted to combining ontologically demarcated information with the Analytical Hierarchy Process (AHP; [4]) for assessment of offers during contract negotiations. The AHP is widely used [1], while an attempt at combining it with ontologies was reported in [3]. Here, the context for the AHP method is provided by the Agents in Gr...

The objective of this work is to develop deep theoretical methods that are based on the solution of the integral boundary layer equations for investigating film cooling in liquid rocket engine. The integral model assumes that heat is transferred from hot free stream gas to the liquid film both by convection and radiation. The mass is transferred to the free srteam gas by the well-known blowing ...

Data warehouses contain valuable information for decisionmaking purposes, they can be queried and visualised with Online Analytical Processing (OLAP) tools. They contain time-related information and thus representing and reasoning on temporal data is important both to guarantee the efficacy and the quality of decision-making processes, and to detect any emergency situation as soon as possible. ...