Results 71 to 80 of about 93,033 (262)
Movement decisions reflect compromised statewide connectivity for mountain lions in California
Frontiers in Ecology and the Environment, EarlyView.Human‐induced habitat fragmentation threatens connectivity for populations of wide‐ranging species by compromising long‐distance dispersal. We evaluated movement‐based resource selection of dispersing mountain lions (Puma concolor) to identify specific landscape conditions influencing movement decisions and connectivity between populations across the ...
Kyle D Dougherty +17 more
wiley +1 more source
Frontiers in Earth ScienceChina’s coal mines are mainly underground mines, and a large number of roadways have to be excavated underground. It is of great significance for coal mine production to adopt safe and reasonable roadway support methods.
Wanwei Fang +7 more
doaj +1 more source
Design method of synergetic support for coal roadway
Procedia Earth and Planetary Science, 2009 AbstractThis paper presents the concept of synergetic support with a comprehensive design method based on the existing support theories and engineering practices. The synergetic support is different from the common combined support method as it can fully mobilize all the components to bring active support and get the effect of 1＋1≥2.
Gang, Liu +3 more
openaire +1 more source
Un modelo para resolver el problema dinámico de despacho de vehículos con incertidumbre de clientes y con tiempos de viaje en arcos [PDF]
, 2012 Indexación: Web of Science; ScieloIn a real world case scenario, customer demands are requested at any time of the day requiring services that are not known in advance such as delivery or repairing equipment.
Blazquez, Carola Alejandra +1 more
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Key soil health indicators under humid grazing lands
Grassland Research, EarlyView.Soil health can be described using a few key soil health indicators that target a diversity of soil functions. This perspective article highlights how forage management affects these soil health indicators in humid‐zone grazing lands. Abstract Background Soil health describes critical soil functions influenced by land management. Although some key soil
Alan J. Franzluebbers
wiley +1 more source
Geomatics, Natural Hazards & Risk, 2020 Gobs and coal pillars left in the upper coal seam exploitation bring a series of changes to the surrounding rock structures and stress environment of the roadway in the lower coal seams, which leads to difficulties in roadway maintenance.
Jun Wang +4 more
doaj +1 more source
A sketch planning methodology for determining interventions for bicycle and pedestrian crashes: an ecological approach [PDF]
, 2010 Bicycle and pedestrian safety planning have recently been gaining increased attention. With this focus, however, comes increased responsibilities for planning agencies and organizations tasked with evaluating and selecting safety interventions, a ...
Cottrill, C. +3 more
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Model based decision support for planning of road maintenance [PDF]
, 1996 In this article we describe a Decision Support Model, based on Operational Research methods, for the multi-period planning of maintenance of bituminous pavements.
van Harten, Aart, Worm, J.M., Worm, J.M.
core +3 more sources
Naval Research Logistics (NRL), EarlyView.ABSTRACT Security agencies around the world use bodyguards to protect government officials and public figures. In this paper, we consider a two‐person zero‐sum game between a defender who allocates such bodyguards to protect several targets and an attacker who chooses one target to attack.
Loe Schlicher, Kyle Y. Lin, Moshe Kress
wiley +1 more source
Recent Advances in Sustainable Winter Road Operations – A Book Proposal [PDF]
, 2017 Investing in winter transportation operations is essential and beneficial to the public and the economy. The U.S. economy cannot afford the cost of shutting down highways, airports, etc., during winter weather. In the northern U.S. and other cold-climate
Shi, Xianming
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