1,187 research outputs found
Academic authorship: who, why and in what order?
No full textWe are frequently asked by our colleagues and students for advice on authorship for scientific articles. This short paper outlines some of the issues that we have experienced and the advice we usually provide. This editorial follows on from our work on submitting a paper1 and also on writing an academic paper for publication.2 We should like to start by noting that, in our view, there exist two separate, but related issues: (a) authorship and (b) order of authors. The issue of authorship centres on the notion of who can be an author, who should be an author and who definitely should not be an author, and this is partly discipline specific. The second issue, the order of authors, is usually dictated by the academic tradition from which the work comes. One can immediately envisage disagreements within a multi-disciplinary team of researchers where members of the team may have different approaches to authorship order
Jam Jar Painted with Geometric Designs
No full texthttp://digiport.athabascau.ca/3d/abdla/2013_0521/2013_0521.phpPhotograph - Jam Jar Painted with Geometric Design
A bibliometric analysis of the Journal of Agrometeorology (JAM) from 2008 to 2022
No full textA quantitative analysis of scientific articles published in the Journal of Agrometeorology (JAM) between 2008 and 2022 was conducted using a variety of scientometric indicators. Various metrics were utilized to examine aspects including yearly research output, highly referenced sources, author rankings, contributions and profiles, cooperation trends, highly contributing nations, most cited papers, commonly searched keywords and worldwide collaboration mapping. This study employs biblioshiny for analysis and only looks at data that is available in Scopus database. With an h-index (17), a g-index (21) and 3238 total citations across the study period, the journal demonstrated considerable influence. With the greatest number of research publications (n=46) and the greatest number of citations (236), Pandey V stands out among other authors. In terms of the number of papers and citations, India emerged as the leading nation, with the Punjab Agricultural University in the lead with 744 publications. Four clusters were found by co-citation network analysis, with Allen RG being the most quoted author among them. The study also highlighted the fact that Indian authors worked together the most. This analysis is important for assessing the influence of the JAM and offers insightful information about noteworthy research trends and developments in the scientific community
Resolving freeway jam waves by discrete first-order model-based predictive control of variable speed limits
No full textIn this paper we develop a fast model predictive control (MPC) approach for variable speed limit coordination to resolve freeway jam waves. Existing MPC approaches that are based on the second-order traffic flow models suffer from high computation load due to the non-linear and non-convex optimization formulation. In recent years, simplified MPC approaches which are based on discrete first-order traffic flow models have attracted more and more attention because they are beneficial for real-time applications. In literature, the type of traffic jam resolved by these approaches is limited to the standing queue in which the jam head is fixed at the bottleneck. Another type of traffic jam known as the jam wave, has been neglected by the discrete first-order model-based MPC approaches. To fill this gap, we develop a fast MPC approach based on a more accurate discrete first-order model. The model keeps the linear property of the classical discrete first-order model, meanwhile takes traffic flow features of jam waves propagation into consideration. A classical non-linear MPC and a recently proposed linear MPC are compared with the proposed MPC in terms of computation speed and jam wave resolution by a benchmark problem. Simulation results show that the proposed MPC resolves the jam wave with a real-time feasible computation speed.Transport and Plannin
Jam Dinding yang Berdengkang
No full textJam Dinding yang Berdengkang is a theatrical performance inspired by the drama Jam Dinding yang Berdetak by Nano Riantiarno. In writing this play, the writer applies a spin-off pattern so that the characters in the Jam Dinding yang Berdengkang are still the same characters with different points of view and problems. In creating the show Jam Dinding yang Berdengkang the author conducted research related to the problems in the show, namely the condition of poverty in Medan City. The creation of this show uses a qualitative approach in collecting data . ABSTRAKJam Dinding yang Berdengkang merupakan pertunjukan teater yang terinspirasi dari drama Jam Dinding yang Berdetak karya Nano Riantiarno. Dalam penulisan drama ini, penulis menerapkan pola spin-off sehingga karakter yang terdapat dalam Jam Dinding yang Berdengkang tetap tokoh yang sama dengan sudut pandang dan permasalahan yang berbeda. Dalam penciptaan pertunjukan Jam Dinding yang Berdengkang penulis melakukan penelitian terkait dengan permasalahan dalam pertunjukan yaitu kondisi kemiskinan di Kota Medan. Penciptaan pertunjukan ini menggunakan pendekatan kualitatif dalam mengumpulkan data terkait tema pertunjukan dan metode planting dalam proses penciptaan
Ripogenus, Maine, Breaking a Jam
No full textAn image scanned from a black and white photograph with a handwritten caption on the back added by Maine author and folklorist Fannie Hardy Eckstorm that appears to read, Breaking Jam at the Arches, Ripogenus, 1891 - \u27Now, all together!\u27https://digitalcommons.library.umaine.edu/spec_photos/4272/thumbnail.jp
Ripogenus, Maine, Breaking a Jam
No full textAn image scanned from a black and white photograph with a handwritten caption on the back added by Maine author and folklorist Fannie Hardy Eckstorm that appears to read, Breaking Jam at the Arches, Ripogenus, 1891.https://digitalcommons.library.umaine.edu/spec_photos/4271/thumbnail.jp
New Extended Discrete First-Order Model to Reproduce Propagation of Jam Waves
No full textThis paper proposes an extension of the discrete Lighthill–Whitham–Richards model of the cell transmission model type to reproduce capacity drop and the propagation of jam waves. Recent studies have tried to incorporate the capacity drop into discrete first-order traffic flow models for traffic optimization purposes. It was found that the inflow to a discharging cell predicted by these models might have been overestimated, and this overestimation influenced the propagation of a jam wave. An empirical analysis was carried out to confirm this assumption. It was found that the extent of the flow reduction depended on the state difference between the targeting cell and its upstream cell. On the basis of these findings, a new mathematical model formulation is given. Simulations with both a hypothetical freeway stretch and a real-life freeway stretch are performed to test the behavior of the proposed model. The previously mentioned models are also simulated for comparison. The simulation results indicate that the proposed model is better able to reproduce jam waves. In addition, the proposed model can be used in a linear model predictive control framework and formulated as a linear optimization problem, which may be beneficial for a real-life, real-time application.Transport and Plannin
Influencing the queue configuration to increase bicycle jam density and discharge rate: An experimental study on a single path
No full textCongestion in bicycle traffic is a daily occurrence at many urban intersections. It is known that a higher density in the queue leads to a higher discharge rate. In theory, higher jam densities than those currently observed in practice are feasible. This leads to our hypothesis that the delay at intersections can be further reduced when cyclists are encouraged to queue up closer together. To explore this option, we carried out an experiment in which the queue configuration was influenced to increase the jam density. This paper presents ways to increase the queuing density, up to twice the density found without instructions. Results show that increasing the jam density does indeed increase the queue discharge rate; this also holds for jam density values that exceed those observed in normal queuing conditions. The efficiency of the queue discharge process, captured by the discharge rate, was found to increase by 40% when cyclists queue up closely together. Qualitative comparison of the queuing positions and discharge patterns showed that the discharge sequence is largely determined by the queuing position, and that cyclists keep a distance from each other in both time and space during the queue discharge phase. When applied in practice, these findings can be used to update the signal length and green phases for all traffic, thereby reducing congestion in urban areas.Transport and PlanningTransport and Plannin
Web development using the JAM Stack technology
No full textThe aim of the thesis is to introduce a modern alternative in the field of web development using JAM Stack technology. Web technologies are developing at a~very fast pace and there are curently a lot of web technologies available on the market to develop websites. Each has its own pluses and minuses and the JAM Stack is located somewhere between. In contrast to the classical front end + back end, JAM Stack is bulit on a purely static concept with no need to use server and databases. It allows web creators to build secure and fast websites. JAM Stack is a method, which consists of three elements - JavaScript that handles and performs client requests, number of API's (application programming interfaces) that mediate server-side and database operations and Markup language. The author will focus on various forms of JAM Stack, test and describe some useful API's and markup language tools, explore the possibilities of using this technology and compare it with the other technologies. In the practical part he will create a functional website entirely bulit with JAM Stack technology. The website will be published using some of the static hosting providers and the website will be distributed over CDN
- …
