The objective here is to evaluate the intra-and inter-vehicle variability in realworld light-duty gasoline vehicle emissions and assess implications for development of onroad vehicle emission inventories. A field study was conducted to characterize variability for selected vehicles for both total emissions and emission rates by routes, time of day, road grade, and among vehicles. Real-world dat...

2 ABSTRACT The quantification of the freight movements occurring in each traffic zone disaggregated by supply chain and of the corresponding Origin-Destination trip tables connected with the urban delivery of goods, is essential to evaluate the effects of any city logistic policy in terms of vehicle congestion and polluting emissions, based on the assignment of truck flows to the road network. ...

In this study, 28 participants with little geographic knowledge of the destination were asked to plan a week-long trip to China online. The participants were asked to create a detailed seven day itinerary outline with activities or attractions they would like to participate in or visit, as well as restaurants in which they would like to dine. The participants were given a computer with Internet...

The professionalization of tourism education through experiential learning by fieldwork should be a key aspect sustainable development strategies. Based on the previous statement, aim this research is to develop experience an academic field trip in Copper Canyon, with purpose generating practical situation that serves as strategy and practice sustainability syllabus Tourism Planning at Autonomo...

This article provides an overview of Performance Analysis of Round Trip Time (RTT) in Narrowband RF Networks for remote wireless communications using narrow band radios modem &Routers ((RipEX unit) ,as a means of transmission to communicate between the loins broadcast sites TV/FM. RTT delay measurement is influenced by different parameters of Narrowband RF Networks. We illustrate, in this paper...

This paper examines the determinants of the length of stay of tourists in the Azores. It is found that socio-demographic profiles, such as nationality and Azorean ascendancy, and trip attributes, such as repeat visitation rates and type of flight, are important determinants. In addition, destination image and attitudes regarding environmental initiatives, constructed from a factor analysis exer...

Motivated by a real application, we consider the following aircraft scheduling problem. At any time, the aircraft are at diierent locations or are serving a customer and new customer requests arrive, each consisting of a departure location, departure time and destination. Additionally, if a customer request consists of more than one trip, there may be an exclusive use of the aircraft between th...

Many recent studies on network traffic demonstrate that Longrange Dependence (LRD) is a ubiquitous property of traffic both in a local area network (LAN) and a wide area network (WAN). So the performance of network should be dominated by this property. Packet Round-trip Delay is an important measurement of network performance. In this paper, we present evidence that LRD exists in packet round-t...

In hierarchical reliable multicast schemes, the number of repair proxies and their locations influence interdestination synchronization. The inter-destination synchronization in multicast environments means the adjustment of the output timing among destinations over the Internet. Improving the inter-destination synchronization is beneficial to collaborative applications such as multi-conference...