Keywords: Uncertainty modelling Edge cover Random fuzzy programming Random fuzzy simulation Genetic algorithm a b s t r a c t Edge covering problem (ECP) is to find an edge cover with the minimum weight in a graph. By quantifying costs, time or opponent's payoffs as weights on edges, ECP is employed to model many real-life problems in engineering and management. Since various types of uncertain...

On-Street parking characterizes most urban streets, especially in the centers where it is considered an attractive facility for drivers. However, inappropriate on-street could adversely affect capacity and driving speeds of adjacent road can cause severe delays, on busy roads. In addition, pose danger to safety users if not managed properly. This paper tries study analyze car El-Wasea Street Se...

The main challenge facing the oil industry is to reduce development costs while accelerating recovery with maximizing reserves. One of the key enabling technologies in this area is intelligent well completions. Intelligent well technology (IWT) is a relatively new technology that has been adopted by many operators in recent years to improve oil and gas recovery. Intelligent well completions emp...

overtaking a slow lead vehicle is a complex maneuver because of the variety of overtaking conditions and driver behavior. in this study, two novel prediction models for overtaking behavior are proposed. these models are derived based on multi-input multi-output adaptive neuro-fuzzy inference system (manfis). they are validated at microscopic level and are able to simulate and predict the future...

permeability can be directly measured using cores taken from the reservoir in the laboratory. due to high cost associated with coring, cores are available in a limited number of wells in a field. many empirical models, statistical methods, and intelligent techniques were suggested to predict permeability in un-cored wells from easy-to-obtain and frequent data such as wireline logs. the main obj...

BACKGROUND Walking for physical activity is associated with substantial health benefits for adults. Increasingly research has focused on associations between walking behaviours and neighbourhood environments including street characteristics such as pavement availability and aesthetics. Nevertheless, objective assessment of street-level data is challenging. This research investigates the reliabi...

Street trees and urban woodlands provide a number of environmental and social benefits, including contributing to climate change adaptation and mitigation and providing urban green space. This Note presents the results of a review of three approaches to estimating the amenity value of street trees: CAVAT, Helliwell and i-Tree. The review showed that the three valuation systems differ significan...

This meeting was embedded within the prestigious Prince Mahidol Award Conference series. At the same time, the 1 st Global Conference on Regional Surveillance Networks, the Centennial Commemoration of the Rockefeller Foundation and many specific side meetings, were held. In total, there were 966 invited participants from 73 countries, representing academics, governments (including public health...

New technologies, products, and services are brought to market every year by small entrepreneurs. The heart valve, safety razor, and soft contact lens are just a few examples. One common thread ties all successful entrepreneurs together—innovation. Innovation brings something new or unusual to the marketplace, and in the process sharpens competitiveness and creates wealth. New firms, new produc...

T he process of mapping the Earth accurately was, until recently, the preserve of highly skilled, wellequipped, and organized individuals and groups. For many years, it was usually the role of surveyors, cartographers, and geographers to map the world and transcribe it on paper or, since the 1960s, into the computer. Lewis and Clark’s expedition to map North America’s West, and Lambton and Ever...