this research was conducted to investigate spatial variability and estimate tree attributes in a plantation forest in the caspian region of iran using geostatistical analysis. sampling was performed based on a 50m?125m systematic grid in a maple stand (acer velutinum boiss) 18 years of age using circular samples of 200m2 area. totally, 96 sample plots were measured in 63 hectares and 14.25 hect...

The need for certificate management in mobile ad hoc networks (MANET) is the background for this report. A prototype implementation of a distributed certificate validation service is presented and evaluated. The proposed design is based on an overlay network of proxy nodes offering certificate validation over the XKMS protocol. The proxy nodes employ cooperative caching in order to offer certif...

Sensors are currently used in a lot of application areas such as health related application, military application, control and tracking application and habitat monitoring and environment applications. This paper introduces various number of sensor validation schemes in sensor network as an overview in this area. This paper entitles the description of the types of attacks and statement of the mo...

BACKGROUND AND PURPOSE Transient or minor ischemic stroke is associated with an early risk of deterioration. Baseline perfusion-diffusion mismatch may predict clinical deterioration and infarct growth in this population. METHODS High-risk transient ischemic attack and minor stroke (National Institutes of Health Stroke Scale ≤3) subjects were prospectively enrolled and imaged with MRI within 2...

materials and methods the development of the trauma registry form began in february 2013. the variables were finalized by a team consisting of general and trauma surgeons, specialists in emergency medicine, orthopedists, neurosurgeons, and public health professionals who have special interest in trauma research. the scale was sent to 10 specialists for validation. results after assessing the sc...