Results 111 to 120 of about 2,081,195 (334)
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 +2 more
wiley +1 more source
Twenty new species of Hieracium sect. Tridentata and H. sect. Foliosa (Asteraceae) from Sweden
Nordic Journal of Botany, EarlyView.Nineteen new, presumably apomictic species of Hieracium sect. Tridentata, namely Hieracium anisodontum, H. bicoloriceps, H. disparifolium, H. ditrichum, H. erectifolium, H. ferox , H. lapsanae, H. luteoviride, H. megaplicatum, H. multifolium, H. paer‐haraldii, H. perpendiculum, H. phaeochlorum, H. prasiniceps, H. semirigidum, H.
Tommy Nilsson, Torbjörn Tyler
wiley +1 more source
Vsetin - Velke Karlovice Railway Track Refurbishment (section between km 17,000 - 19,950 km) Including Track Laying Technology [PDF]
, 2014 Bakalářská práce se zabývá rekonstrukcí železničního svršku a úpravou geometrických parametrů koleje na vybraném úseku železniční tratě Vsetín – Velké Karlovice.
Kulich, Pavel
core
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 +4 more
wiley +1 more source
Multifractal Analysis of the Common Crossing Track-Side Measurements
Civil and Environmental Engineering, 2019 The deterioration common crossing elements increase the need for the maintenance of crossings and significantly reduce the reliability, availability and safety of railway traffic.
Sysyn Mykola +5 more
doaj +1 more source
People and Nature, EarlyView.Abstract The expansion of grey wolves (Canis lupus) across the western United States, including on public lands used for extensive livestock grazing, requires tools and techniques for reducing wolf–livestock conflict and supporting coexistence. We examined approaches used on forested lands managed by the U.S.
Robert M. Anderson +3 more
wiley +1 more source
DETERMINATION OF DYNAMIC LOADS FROM THE WHEEL ON THE RAIL FOR HIGH-SPEED TRAINS
Nauka ta progres transportu, 2015 Purpose. On the basis of theoretical assumptions and experimental studies the paper provides the choice of the factors for the formation of dynamic load on the track of modern rolling stock in the conditions of high-speed.
D. M. Kurhan
doaj +1 more source
People and Nature, EarlyView.Abstract Conservation performance payments are becoming an increasingly popular instrument to tackle human–wildlife conflicts. In Sweden, Sámi communities practicing reindeer husbandry receive performance payments as compensation for reindeer losses caused by lynxes and wolverines.
Josef Kaiser +3 more
wiley +1 more source
Geography of race and income shape spatial data gaps in two national participatory science projects
People and Nature, EarlyView.Abstract Context and Need: Participatory projects where people contribute geo‐referenced biodiversity data, like eBird and iNaturalist, are commonly used tools to enhance the data collection capacity for research, management, and environmental learning. Despite their utility, demographic disparities in participation, demographic patterns of residential
Deja Perkins +3 more
wiley +1 more source
Study on Performance Optimization and Feasibility of No.9 Turnout with 1520 mm Gauge in China
Applied SciencesTo address the issues of poor geometric dimension retention, short component lifespan, and heavy maintenance workload of the 1520 mm gauge 50 kg/m rail No.9 turnout, a new design was proposed for the 1520 mm gauge 60 kg/m rail No.9 turnout.
Zhiheng Li +6 more
doaj +1 more source