Climate change is known as one of the most important environmental challenges. Sequestration of carbon in terrestrial ecosystems is a low-cost option that may be available in the near-term to mitigate increasing atmospheric CO2 concentrations, while providing additional benefits. In this study, we estimated the effects of planting density and grazing intensity on the potential of Atriplex canes...

This study was carried out in a completely randomized design 3×3×4 factorial arrangement in three periods of rearing in spring 1997. Density of 300 larvae was assigned for each oval tank with 0.1m2 surface area, 30cm deep, a volume of 20lit and 0.25 lit/min of water flow per minute at Shahid Rajaie fish breeding and culture center in Sari, north of Iran. The fries were divided into ...

Voice-based authentication is prevalent on smart devices to verify the legitimacy of users, but vulnerable replay attacks. In this paper, we propose leverage distinctive chest motions during speaking establish a secure multi-factor system, named ChestLive. Compared with other biometric-based systems, ChestLive does not require users remember any complicated information (e.g., hand gestures, doo...

Soil plays a major role in the carbon cycle for both stocks and respiration since soil organic (SOC) is most important pool CO2 efflux largest source of emissions to atmosphere. The aim this study was understand how combination no-till (NT) cover cropping (CC) influences SOC respiration. measured southwestern France from April October at two distinct sites characterized by contrasting initial c...

The destruction of natural forest is increasing due to urbanization, industrialization, settlement and for the agricultural expansion over last few decades, and studies for their recovery need to be undertaken. With this aim, this comparative study was designed to see the effects of deforested soil on germination and growth performance of five different tree species. In the experiment, five spe...

We describe the case of a 29-year-oldman who presented to the emergency room complaining of sudden and severe abdominal pain for 3 days. Evaluation on admission revealed low blood pressure, an increased heart rate, and tachypnea. Abdominal examination revealed a positive Blumberg sign and an abdominal radiograph showed pneumoperitoneum requiring urgent surgical evaluation. In the operating room...

the effects of dominant shrub species on soil organic matter (som), including total soil carbon (sc), total nitrogen (n) and particulate organic matter (pom) were studied in three stands differing in the type of shrub species, i.e. astragalus microcephalus (shrub), pteropyrum aucheri (shrub) and prangus uloptera (non-shrub).the stands were located in arid grasslands of north-western iran. for t...

different construction materials with different roughness used to make circular weirs highly affect surface roughness and, in turn, flow hydraulics passing over these structures.  in the present research, numerous experiments under different hydraulic conditions were performed on a physical model to study the effects of roughness on flow hydraulics over a circular weir. the flow hydraulics incl...

in order to develop a high yielding rice cultivar with optimum cooking quality, a cross was conducted between two rice cultivars khazar, high yielding and resistant to blast disease and daylamani tarom, with good cooking quality in 1990. forty pure lines were selected and compared for high grain yield in 1996. ten selected lines together with two check cultivars dasht and onda were tested in ad...