Abstract: Butterflies are insects that live along riverbanks and belong to the Lepidoptera order. The Alas River is one of longest rivers in Sumatra which passes through four districts Aceh Province. Along river banks, there varied vegetation conditions such as secondary forests, shrubs, sandy banks. This study aims determine diversity composition butterfly species River, included Soraya Resear...

considering the water scarcity in iran and the importance of environmental protection, it is approperiate to investigate the environmental management of siah-rud river. it is a small river being utilized as discharge channel by factories located in the vicinity of the river. the physico-chemical characteristics of river water at 10 different sampling locations 'along with coefficient of ae...

This paper discusses a framework for implementation of a machine vision-based system for on-line identification of trash objects commonly found in cotton. Soft computing techniques such as neural networks and fuzzy inference systems can classify trash objects into individual categories such as bark, stick, leaf, and pepper trash types with great accuracies. This identification of trash objects ...

In conventional power plants trash-racks are provided at the intakes to protect the turbines. In pumped storage plants, the draft tube or tailrace must also have trash-racks to protect the units while pumping. Because the loads believed to cause many failures of trash-racks are dynamic in nature, it is important to understand the dynamic characteristics of trash-rack structures in general and a...

water samples have been collected from key parts of haraz river along different points andanalyzed for various water quality parameters during winter and spring season. effects of industrial wastes,municipal sewage, fish farming and agricultural runoff on river water quality have been investigated. thesurvey was conducted on along the haraz river (185 km) from near its headwaters at the polour,...

For centuries, the Ganges River in India has been the locus of sacred rites for the Hindus. The religious significance of the Ganges is physically manifested in ghats (stepped landings) that form the land-water interface. Besides serving as a site for religious bathing and cremation, the ghats are also tied to people’s livelihoods and are an inseparable part of their daily lives. Today, the inc...

The lower reach of the Red River between Winnipeg and Lake Winnipeg is very prone to ice jam flooding. The onedimensional ice jam model RIVICE was implemented for this reach to better understand the processes leading to such events and to provide a tool to evaluate strategies for ice jam mitigation. The most downstream portion of this river stretch flows through a delta and marsh system which p...