study area is located in district of bajestan and ferdows cities, ne of iran. structurally, this area is part of lut block. the oldest exposed rocks, to the north of intrusive rocks and in eastern bajestan, are meta-chert, slate, quartzite, thin-bedded crystalline limestone and meta-argillite. the sedimentary units are: sardar formation (carboniferous), jamal formation (permian), sorkh shale an...

We show how any BSP tree TP for the endpoints of a set of n disjoint segments in the plane can be used to obtain a BSP tree of size O(n · depth(TP )) for the segments themselves, such that the range-searching efficiency remains almost the same. We apply this technique to obtain a BSP tree of size O(n log n) such that ε-approximate range searching queries with any constant-complexity convex quer...

Wide dynamic range images (WDRIs) are needed for capturing scenes which include drastic lighting changes. This paper presents a method to widen the dynamic range of a camera by using a reflective liquid crystal. The system consists of a camera and a reflective liquid crystal placed in front of the camera. By controlling the attenuation ratio of the liquid crystal, scene radiance of each pixel i...

This paper presents design techniques to evaluate the noise and distortion of continuous time Gm-C filters. Also presents techniques to improve the dynamic range of such filters keeping a relation of integer numbers between the transconductors. Furthermore the comparison of the dynamic range for the same power using different structures is presented.

the purpose of this research was analyzing factors affecting non-participation of stakeholders in rangeland management projects. the research method was descriptive-correlative design in ranches of piranshahr rangelands in western azerbaijan province, iran. all ranches that studied (zioke yurd, ziuke mirgah chaku, khargedashan yurd and gardeh bon), are utilized in common use manner. simple rand...