Results 71 to 80 of about 141,507 (255)
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
Web-Based Roadway Geometry Design Software for Transportation Education [PDF]
Traditionally, students use pencil and ruler to lay out lines and curves over contour maps for roadway geometry design. Numerous calculations of stopping sight distance, minimum turning radius, and curve alignments are required during the roadway design ...
Chen-Fu Liao, David Levinson
core
Design of roundabout in Horsens (Denmark) and comparison of Danish and Czech approach to design [PDF]
, 2012 Cílem této bakalářské práce je návrh okružní křižovatky v Dánsku ve spolupráci s dánskou univerzitou VIA University College v Horsens a porovnání různých přístupů k řešení jednotlivých prvků okružních křižovatek v České republice a Dánsku.
Pěknica, Martin
core
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
Meitan kexue jishuRock burst is one of the disasters that seriously affect the safe and effective mining of coal in mine mining. It is of great significance and value to study the principle and technology of bolt anti-impact support to prevent and control the rock burst ...
Jun HAN +4 more
doaj +1 more source
Route Fatality Risk as a Measure of Travel Death Risk [PDF]
, 1993 The authors examine the route fatality Risk of routes in Erie County, PA and show that some pose a disproportionately high-Risk to users. They argue that transportation safety could be greatly increased by relatively small expenditures and suggest that ...
Halperin, Kopl, Redman, Jim
core +1 more source
Nordic Journal of Botany, EarlyView.Understanding community assembly for wild species in anthropogenic settings has become increasingly important as biodiversity and ecosystem services are threatened by development pressures. Urban hardscape habitats such as parking lots are widespread, extreme, terrestrial anthropogenic environments that influence plant community assembly by way of ...
Lauren J. Frazee +3 more
wiley +1 more source
Journal of Field Robotics, EarlyView.ABSTRACT Personal autonomous vehicles can sense their surrounding environment, plan their route, and drive with little or no involvement of human drivers. Despite the latest technological advancements and the hopeful announcements made by leading entrepreneurs, to date no personal vehicle is approved for road circulation in a “fully” or “semi ...
Xingshuai Dong +13 more
wiley +1 more source
Justification of the criteria for allocation of separate lanes for urban public transport
Transport Technologies, 2020 The article is devoted to the methodology and research results of traffic flow parameters on the arterial streets, where different regimes of prioritizing urban public transport operate.
Yuriy Royko +2 more
doaj +1 more source
Fatally Injured Pedestrians and Bicyclists in the United States with High Blood Alcohol Concentrations [PDF]
, 2017 More than one-third of pedestrians and one-fifth of bicyclists killed in crashes in 2014 were impaired by alcohol, but scant attention has been paid to the problem.
Angela H. Eichelberger +2 more
core