In order to overcome the limitations of the standard first or-der model of traffic flow (LWR model), various second ordermodels involving relaxation and/or anticipation terms wereintroduced in the literature. These models have the particu-larity to possess an equilibrium which can be unstable if cer-tain so-called subcharacteristic conditions are not satisfied.It can...

this study was conducted to determine length-weight and length-length relationships, relative condition factor (krel) and fulton?s condition factor (k) for five species including scardinius erythrophtalmus, carassius auratus gibelio, cyprinus carpio, tinca tinca and hemiculter leucisculus belonging to cyprinidae family. fish sampling was carried out by gill net and fyke net in the western regio...

The paper presents a new generation of torque-controlled lightweight robots (LWR) developed at the Institute of Robotics and Mechatronics of the German Aerospace Center. In order to act in unstructured environments and interact with humans, the robots have design features and control/software functionalities which distinguish them from classical robots, such as: load-to-weight ratio of 1:1, tor...

The Length-weight relationships (LWRs) are very important to data for accurate estimate of populations in stock menagement. In this study, the length-weight some fish Göynük stream, Murat River (Bingöl/Turkey) were examined. LWRs and condition factor (K) Cyprinon macrostomus, Gara rufa, Barbus lacerta, Acanthobrama marmid analyzed. was estimated using linear regression model. obtained as TW = 0...

Understanding the impacts of environmental factors on spatial–temporal and large-scale rodent distribution is important for damage prevention. Investigating rat hole density (RHD) one most effective methods to obtain intensity damage. However, previous field surveys or UAV-based remote sensing can only evaluate small-scale RHD its influencing factors. these studies did not consider temporal spa...

Abstrac&--In an effort to relieve peak hour congestion on freeways, various ramp metering algorithms have been employed to regulate the inputs to freeways from entry ramps. In this paper, we consider a freeway system comprised of a freeway section and its entry/exit ramps, and formulate the ramp control problem as a dynamic optimal process to minimize the total time spent in this system. Within...

The performance of many traffic control strategies depends on how much the traffic flow models have been accurately calibrated. One of the most applicable traffic flow model in traffic control and management is LWR or METANET model. Practically, key parameters in LWR model, including free flow speed and critical density, are parameterized using flow and speed measurements gathered by inductive ...