abstract in the recent decades, application of geostatistic and remote sensing for mapping salinity and sodicity of surface soil and monitoring it's changes have been developed. the goal of this research was to compare the capability of geostatistic and remote sensing methods for mapping salinity-sodicity of soils in playa from sourthern mah valat county, in the khorasan razavi province. 88 sam...

Modern robots fall behind humans in terms of the ability to discriminate between textures objects. This is due fact that lack detect various tactile modalities are required Hence, our research team developed a robot fingertip module can objects via direct contact. based on sensor with multimodal (3-axis force and temperature) sensing capabilities. The was able forces vertical (Z-axis) direction...

One of the influential tools concerning the rangeland and vegetation sciences isthe technology of remote sensing and satellite data. Satellite data have played essentialroles in preparing the needed information for studying the vegetation. Vegetation has beenwidely recognized as one of the best indicators for determining the land conditions. Usingvegetation indices is one of the techniques of r...

Mobile crowd sensing harnesses the data sensing capability of individual smartphones, underpinning a variety of valuable knowledge discovery, environment monitoring and decision making applications. It is a central issue for a mobile crowd sensing system to maximize the utility of sensing data collection at a given cost of resource consumption at each smartphone. However, it is particularly cha...

In this study, we propose a highly sensitive multichannel pH sensor that is based on an optical-fiber pulse width modulation (PWM) technique. According to the optical-fiber PWM method, the received sensing signal's pulse width changes when the optical-fiber pH sensing-element of the array comes into contact with pH buffer solutions. The proposed optical-fiber PWM pH-sensing system offers a line...

The paper is aimed to design and implement a remote sensing and monitoring system running on mobile robot with the capability of transmitting the data wirelessly to operating station. A simple mobile robot prototype with on-board sensors has been designed and implemented to scan and monitor several variables in the surrounding environment. The system enables the user operating from base station...

In recent years there has been an increasing interest in distributed intelligent sensor networks [ 1121. This interest has been generated by the requirements of military surveillance systems and other civilian applications. An intelligent sensor network is a collection of units with sensing, computational, and communication ability. Thus one has a network of communicating processors with sensin...

The limited available spectrum and the inefficiency in the spectrum usage necessitate a new communication technology, referred to as cognitive radio (CR) networks. The key characteristic of CR system is that it senses the electromagnetic environment to adapt their operation and dynamically vary its radio operating parameters. A cognitive radio must detect the presence of primary user to avoid i...