We consider the theory of erosion and investigate connections to the theory of optimal transport. The mathematical theory of erosion is based on two coupled nonlinear partial differential equations. The first one describing the water flow can be considered to be an averaged NavierStokes equation, and the second one describing the sediment flow is a very degenerate nonlinear parabolic equation. ...

Debris flows represent a very destructive natural hazard, affecting buildings, transport infrastructures, and, very often, causing human losses in mountain regions. That makes the identification of potential source areas of debris flows inside a watershed particularly important. In this paper we present a general identification procedure based on the credal network (that is an imprecise probabi...

We outline a view of how road networks interact with stream networks at the landscape scale and, based on examples from recent and current research, illustrate how these interactions might affect biological and ecological processes in stream and riparian systems. At the landscape scale, certain definable geometric interactions involving peak flows ( floods) and debris flows (rapid movements of ...

Recent warming has had enormous impacts on glaciers and high-mountain environments. Hazards have changed or new ones have emerged, including those from glacier lakes that form as glaciers retreat. The Andes of Peru have repeatedly been severely impacted by glacier lake outburst floods in the past. An important recent event occurred in the Cordillera Blanca in 2010 when an ice avalanche impacted...

journal of accounting advances (j.a.a) vol. 5, no. 1, 2013, ser. 64/3     extended abstract   a study of characteristics of interim cash flow series and their proxies and the ability to predict them            dr. m. a. aghaei              v. ahmadian             f. daviran tarbiat modares university   introduction the predicting of annual and interim cash flows from operations is one of the mo...

AUTHORS Vanessa VIEIRA / CICECO AVEIRO INSTITUTE OF MATERIALS, UNIVERSITY OF AVEIRO; ASSOCIATE LABORATORY LSRE-LCM, POLYTECHNIC INSTITUTE OF BRAGANÇA; CIMO MOUNTAIN RESEARCH CENTER, POLYTECHNIC INSTITUTE OF BRAGANÇA, CICECO AVEIRO INSTITUTE OF MATERIALS, DEPARTMENT OF CHEMISTRY, CAMPUS UNIVERSITÁRIO DE SANTAGO, AVEIRO Olga FERREIRA / ASSOCIATE LABORATORY LSRE-LCM, POLYTECHNIC INSTITUTE OF BRAGA...

In this paper, we describe an automatic people-counting system based on a wireless sensor network at a mountain area. Several people-counting systems have been proposed separately. However, these systems are not suitable to a place such as the mountain area because of a few problems. In this paper, we develop a system which can count the number of visiting people and sense environment informati...

Debris flow erosion into bedrock helps to set the pace of mountain denudation, but there are few empirical observations this process. We studied effects debris flows on using Structure-From-Motion photogrammetry and multiple real-time monitoring measurements. found that distribution across channel cross-section could be generalized as an exponentially decreasing function height above thalweg. U...

BACKGROUND AND AIMS Studies of local floral adaptation in response to geographically divergent pollinators are essential for understanding floral evolution. This study investigated local pollinator adaptation and variation in floral traits in the rewarding orchid Gymnadenia odoratissima, which spans a large altitudinal gradient and thus may depend on different pollinator guilds along this gradi...