Shape memory alloys are kind of smart materials, which have distinctive properties and are superior in compare with other alloys. Severe reactions to thermodynamic and mechanical parameters and ability to return to their original shape make these alloys distinctive from other alloy regarding machining ability. Since these alloys have a very useful application in various fields such as aerospace...

Hopping rovers have become a promising way of asteroid surface exploration. This paper focuses on the hopping trajectory design between two given points and discusses irregular terrain's influence process. By taking rover as point mass, dynamical equations are derived based polyhedral method. The principle planning is summarized with related solving algorithm. initial velocity increments requir...

This paper describes work aimed at developing a practical shape-from-shading process for terrain analysis from radar imagery. The paper commences by providing an analysis of the radar reflectance properties of terrain structures. By using ground truth elevation data, we provide an empirical study of the radar reflectance characteristics for large-scale terrain features. The main conclusion of t...

In this paper we describe an approach to classify forested areas based on their vertical vegetation structure using Airborne Laser Scanning (ALS) data. Surface and terrain roughness are essential input parameters for modeling of natural hazards such as avalanches and floods whereas it is basically assumed that flow velocities decrease with increasing roughness. Seeing roughness as a multi-scale...

mud volcanoes are defined as main elements of geological structures and ways through and within which buried argillaceous loose sediments and lithified rocks. the gharniaregh tappeh and naftelijeh mud volcanoes are the most attractive geomorphological phenomena in continental which appear along the eastern coast of the caspian sea. the naftelijeh mud volcano is more active than gharniaregh–tapp...

Studies have shown that polarimetric SAR may be used to measure terrain slopes and surface roughness. The first goal is to extend these measurement concepts here to study slope distribution changes generated by ocean wave-current interactions such as the surface manifestations of internal waves [1]. These changes are then, in turn, used to estimate the perturbations in the ambient slope distrib...

We present a new terrain classification technique both for effective, autonomous locomotion over rough, unknown terrains and for the qualitative analysis of terrains for exploration and mapping. Our approach requires a single camera with little processing of visual information. Specifically, we derived a gait bounce measure from visual servoing errors that results from vehicle-terrain interacti...