Results 31 to 40 of about 38,794 (148)
Dynamics of active filaments in porous media
, 2019 The motion of active polymers in a porous medium is shown to depend critically on flexibilty, activity and degree of polymerization. For given Peclet number, we observe a transition from localisation to diffusion as the stiffness of the chains is ...
Mokhtari, Zahra, Zippelius, Annette
core +1 more source
Biological Flora of Britain and Ireland: Cytisus scoparius*
Journal of Ecology, EarlyView.Broom is an attractive and common native plant across Britain, Ireland and most of Europe, and yet it is considered a harmful and invasive weed around the rest of the world. This is aided by broom thriving on poor dry soils, helped by using green stems for photosynthesis and having root nodules to fix nitrogen.
Peter A. Thomas +9 more
wiley +1 more source
On suspicious tracks: machine-learning based approaches to detect cartels in railway-infrastructure procurement [PDF]
arXiv, 2023 In railway infrastructure, construction and maintenance is typically procured using competitive procedures such as auctions. However, these procedures only fulfill their purpose - using (taxpayers') money efficiently - if bidders do not collude.
arxiv
Sorry for any Inconvenience Caused: Why Britain Messed up High Speed Rail
The Political Quarterly, EarlyView.Abstract High Speed 2—the planned new railway from London to the north of England—is one of the largest and most controversial public sector investment projects Britain has attempted in decades. Much has been written about the huge cost overruns that the project has suffered, and why this led to the eventual cancellation of the line beyond its first ...
Iain Docherty, Jon Shaw
wiley +1 more source
Modelling railway delay propagation as diffusion-like spreading [PDF]
arXiv, 2021 Railway systems form an important means of transport across the world. However, congestions or disruptions may significantly decrease these systems' efficiencies, making predicting and understanding the resulting train delays a priority for railway organisations.
arxiv
The Political Quarterly, EarlyView.Abstract This article focusses on why, when and where government policies may become undeliverable. It therefore adds a distinctive dimension to the traditional analysis of policy failure, while also contributing to more solution‐orientated analyses of effective policy making.
John Connolly +2 more
wiley +1 more source
Bulletin of Latin American Research, EarlyView.Godfrey Bingley was a British industrialist who took up geology, photography and travel in the 1880s. His photographs are housed at the University of Leeds, where he worked with its Chair of Geology. This article analyses the archive's projection of the imperial geological imaginary that emanated from Britain and extended to the Americas.
Rebecca Jarman
wiley +1 more source
TRANSPORT SECURITY AS A FACTOR OF TRANSPORT AND COMMUNICATION SYSTEM OF UKRAINE SELF-SUSTAINING DEVELOPMENT [PDF]
, 2017 In the present article, attention is focused on the existing potential to ensure national self-sufficiency, the main challenges to its achievement and future prospects.
Britchenko, Igor, Cherniavska, Tetiana
core
The Economic History Review, EarlyView.Abstract Did democratization reduce the likelihood of politically connected bank bailouts in the past? What role did private central banks play as independent lenders of last resort? To answer these questions, this article provides new detailed archival evidence on the causes of bank failures in Spain in July 1931.
Enrique Jorge‐Sotelo
wiley +1 more source
A Survey on Future Railway Radio Communications Services: Challenges and Opportunities [PDF]
IEEE Communications Magazine, 2015, 2020 Radio communications is one of the most disruptive technologies in railways, enabling a huge set of value-added services that greatly improve many aspects of railways, making them more efficient, safer, and profitable. Lately, some major technologies like ERTMS for high-speed railways and CBTC for subways have made possible a reduction of headway and ...
arxiv