1,721,035 research outputs found
Initializing PRT at the Adriatic coast
No full textOne of the most significant properties of Personal Rapid Transit (PRT) is that a dense, arbitrarily shaped network can offer a nonstop transit between all origins and destinations within the covered area. In contrast with line-oriented services of conventional transit, this network approach has the benefits that stations can be placed closer to the user and that traffic flows can be distributed on the various links such that capacity requirements are less stringent. However, in many cases extended networks will not be built in one step but start as single lines or smaller networks. Consequently, PRT services must start without the aforementioned network benefits. This fact puts some serious constraints on the choice of initial PRT lines, in particular in absents of public financing: the potential costumer should accept high ticket prices for a high service quality; the PRT service should possibly be exclusive; the travel demand should be below capacity limits but constant throughout the day.
Rimini, Italy may offer ideal conditions for an initial PRT network. Currently, the attractiveness of Rimini as tourist attraction and conference site is jeopardized by an unsustainable level of car traffic: its centre is located between the main generators to the west (two highway-exits, the federal road and a conference hall) and the main destinations to the east (2000 hotels, concentrated on a small corridor along the Adriatic coast).
The basic idea of this case-study is to drastically reduce public parking-space in a zone along the beach and to guarantee access through PRT. A bidirectional PRT line would begin at a Park&Ride at the highway exit south-west of Rimini, pass by the conference center and the railway station and finally distribute clients to the numerous hotels along the beach. The travel demand is composed of a large share of the following components:
1. Tourists who arrive by car, leaving their car at the P&R and taking the PRT to reach their hotel. The ticket price would include parking costs (current parking costs near the beach are at 2.5€ per hour)
2. Within-day visitors from Italy, same as 1) but would get off the PRT at their favorite beach.
3. Tourists from abroad and Italy who arrive at the train station and travel to their hotel (current taxi is approximately 7€).
4. Conference attendees who arrive and commute between hotel and conference site during the conference. Statistics reveal that conference attendees have a medium to high income level, 16% have lead positions in companies.
Detailed statistics are available about the 1,532,991 tourist who booked a hotel in Rimini during 2007. The number of within-day travelers must be estimated through statistics about revenues from parking meters along the PRT-covered area. Detailed studies are also available on the 1,168,062 persons who attended 7,094 conferences during 2007. The favorable results of demand estimates, cost-benefit analysis and micro-simulations will be presented in the full paper. Other Adriatic cities in similar conditions have already expressed their interest in PRT solutions
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Stability of the molecular structure
No full textWe prove the stability of the molecular structure given by a bidimensional nonlinear model for a stochastic perturbation. In particular, for a small stochastic perturbation, the racemisation effect doesn't happen when during the validity timew of the mode
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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