Online advertising has seen great growth over the past few years. Advertisers have gotten better results with campaigns targeted at more specific audiences. Ad networks with few visits are unable to create such campaigns and hence are moving forward towards a new model, consisting of a huge global ad exchange market. In this market millions of advertisers compete for the ad space so that their ...

introduction the fire services play a key role in safety issues for any country. the operations of the services have a high visibility since the public is aware of its own vulnerability and possibly vital reliance on the service. firemen and women are rightly admired, particularly as their intervention may carry a risk to their own lives. more generally, this service comes at a considerable cos...

With the rapid development of urbanization, metro becomes more and important for people’s travel in big cities. To quantitatively describe passenger flows on congested transfer routes, this paper introduces a dynamic model based automated data from automatic fare collection (AFC) vehicle location (AVL) systems. An expectation maximization (EM) algorithm is proposed to compute maximum likelihood...

In this study, three raw Brazilian clays from Joao Pessoa, Paraiba State (Aco AP, AVL and Verde Lodo) were characterized before after purification acid activation. Several instrumental techniques used, the classified as dioctahedral smectites with different compositions, where sample had highest content of montmorillonite. addition, analyses showed modification in clay mineral mainly due to rem...

Background: Fire and explosion hazards are extremely important in processing units. This study was performed to identify the risk centers, the potential damage caused by fire and explosion, and the days of production cessation in the processing company. Materials and Methods: The present qualitative case study was conducted using Dow’s index in 2015. The fire and explosion hazard index...

The Academic Vocabulary List (AVL) (Gardner & Davies, 2014) is a valuable resource for EAP teachers and students as it identifies potential lexical learning/teaching targets. This study enhances the AVL's pedagogical usefulness by identifying polysemous lemmas in it. Polysemous AVL are operationalised those with more than one definition two lexicographic resources, Collins COBUILD Advanced Lear...