Dragonflies: climate canaries for river management

Climate change and the world’s river basins: anticipating management options

technical and legal parameters for determination of river boundary,( case study haraz river)

چکیده با توسعه شهر نشینی و دخل و تصرف غیر مجاز در حریم رودخانه ها خسارات زیادی به رودخانه و محیط زیست اطراف آن وارده می شود. در حال حاضر بر اساس آئین نامه اصلاح شده بستر و حریم رودخانه ها، حریم کمی رودخانه که بلافاصله پس از بستر قرار می گیرد از 1 تا20 متر از منتهی الیه طرفین بستر رودخانه تعیین، که مقدار دقیق آن در هر بازه از رودخانه مشخص نیست. در کشورهای دیگر روشهای متفاوتی من جمله: درصد ریسک...

3D Hardware Canaries

3D integration is a promising advanced manufacturing process offering a variety of new hardware security protection opportunities. This paper presents a way of securing 3D ICs using Hamiltonian paths as hardware integrity verification sensors. As 3D integration consists in the stacking of many metal layers, one can consider surrounding a security-sensitive circuit part by a wire cage. After exp...

Evolution of Dragonflies

All life began from a common ancestor. According to most scientists, animal life is thought to have evolved from a flagellated protist. This protist evolved by a cellular membrane folding inward, which became the first digestive system in the Animalia kingdom (Campbell, Reece &, Mitchell, 1999). As time went on, the animalia kingdom became more diversified and the class Arthropoda arose. Arthro...

Analyzing Climate Zooning and Climate Change Effects on Discharge of Jajrood River Basin

In this study, for climate zoning and determining the effects of climate change on discharge of Jajrood River Basin, data from 9 available stations in Jajrood River Basin were used. In order to create climatic zones in the Jajrood River Basin, multivariate cluster analysis was used. To validate the data, discriminant analysis was employed. For investigating the effects of temperature and precip...