Results 81 to 90 of about 1,769,252 (349)

Policy Spandrels: How Design Decisions Can Open Up Spaces for Unintended Policy Change

European Policy Analysis, EarlyView.
ABSTRACT This article introduces the concept of policy spandrels to make sense of public policies producing second‐order effects that are unintentional from the perspective of policy design and yet are fraught with consequences. By analogy with architectural spandrels—leftover spaces that can be used for unforeseen purposes—policy change can be enabled
Martino Maggetti
wiley   +1 more source

Static and Dynamic Tests of the Railway Subgrade Construction Model

Communications, 2004
The presented paper deals with the research of railway subgrade construction. The purpose was to compare static and dynamic modulus of deformation namely on two different railway subgrade constructions.
Jan Lelak, Dusan Slavik, Martin Mecar
doaj   +1 more source

Effect of Ammonium Polyphosphate/Silicate Content on the Postfire Mechanics of Epoxy Glass‐Fiber Composites Using Facile Chocolate Bar‐Inspired Structures

Fire and Materials, Volume 49, Issue 3, Page 329-346, April 2025.
ABSTRACT This study investigates the postfire mechanical properties of epoxy glass‐fiber reinforced composites (EP GFRCs) using increasing concentrations of ammonium polyphosphate (APP) and inorganic silicate (InSi) to modify the char and fire residue.
Sruthi Sunder, Maria Jauregui Rozo, Sneha Inasu, Dietmar Meinel, Bernhard Schartel, Holger Ruckdäschel   +5 more
wiley   +1 more source

Between Practicality and Politics: Factors of Sub‐National Aid Allocation in Bosnia and Herzegovina

Journal of International Development, EarlyView.
ABSTRACT Bosnia and Herzegovina represents a unique case of aid recipient for its complex history and administrative and political divisions. Yet, little is known about how foreign aid is allocated to local recipients. This qualitative study uncovers factors shaping sub‐national aid allocation in Bosnia and Herzegovina, highlighting donors' and ...
Lenka Dušková, Simona Šafaříková, Eva Šerá Komlossyová, Aida Avdić, Boris Avdić, Tereza Nováková   +5 more
wiley   +1 more source

Realisation of a Novel Functionally Redundant Actuation System for a Railway Track-Switch [PDF]

, 2021
Osama Olaby, Saikat Dutta, Tim J. Harrison, Christopher Ward, Roger Dixon   +4 more
openalex   +1 more source

Effect of Sleeper Interventions on Railway Track Performance

Journal of Geotechnical and Geoenvironmental Engineering, 2019
The sleeper/ballast interface is an essential stage in the transfer of train loads from a railway track structure into the ground.
T. Abadi, L. Pen, A. Zervos, W. Powrie
semanticscholar   +1 more source

Thermochemically Treated Sewage Sludge Ash From Pilot‐Scale Production as P‐Fertilizer for Spring Wheat and Maize in Different Soil Conditions

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background P‐fertilizers made from sewage sludge ash (SSA) may be suitable substitutes for rock phosphate (RP)‐based fertilizers and contribute to sustainable use of waste. In this context, the thermochemical AshDec treatment of SSA (TC‐SSA) has been continuously improved and has emerged as a possible method to produce plant‐available and low ...
Kai Leers, Ute Arnold, Hannes Herzel, Christian Adam, Jürgen Burkhardt   +4 more
wiley   +1 more source

Robustness Assessment of Public Transport Networks in Various Graph Representations: Systematic Review, Decision Support, and Case Study

Networks, EarlyView.
ABSTRACT The analysis of certain properties of the underlying graph of a public transport network generates insights about the network's structure. Hereby, the choice of the graph representation depends on a trade‐off between complexity reduction and information preservation to adequately model a public transport network.
Michael Palk, Stefan Voß, Raka Jovanovic   +2 more
wiley   +1 more source

ELASTIC DEFORMATIONS IMPACT IN ELEMENTS OF THE RAIL FASTENING, TYPE КПП-5 ON A SIZE OF PRESSING FORCE OF THE RAIL TO THE SUBRAIL BASIS

Nauka ta progres transportu, 2015
Purpose. The railway transport is one of the most important links in economy of Ukraine, and it is a basis of its transport system. As the majority of freight transportation of coal and metallurgical industry is conducted by railway transport, its ...
N. P. Nastechik, R. V. Marcul, V. V. Savytskyi   +2 more
doaj   +1 more source

Bioclimatic, demographic and anthropogenic correlates of grizzly bear activity patterns in the Greater Yellowstone Ecosystem

Oikos, EarlyView.
Plasticity of diel activity rhythms may be a key element for adaptations of wildlife populations to changing environmental conditions. In the last decades, grizzly bears Ursus arctos in the Greater Yellowstone Ecosystem (GYE) have experienced notable environmental fluctuations, including changes in availability of food sources and severe droughts ...
Aurora Donatelli, Mark A. Haroldson, Justin G. Clapp, Paolo Ciucci, Frank T. van Manen   +4 more
wiley   +1 more source