Abstract The waters of the Haruku Strait are one in Maluku Province highly used, both on coast and sea. This allows waste ingress into waters, this results pollution which causes declining water quality. An indicator aquatic environment quality is presence dissolved oxygen. Oxygen solubility also influenced by character mass. purpose study was to examine Strait, especially DO, BOD pH, turbidity...

Ukraine is an energy-dependent country, with less that 50% of its energy consumption fulfilled by own resources. Natural gas paramount importance, especially for industry and society. Therefore, there urgent need to search alternative potential sources, such as hydrate deposits in the Black Sea, which can reduce imported gas. It necessary refine process parameters dissociation a heterogeneous s...

Knowledge of distribution and emission pattern natural artificial radioactive elements their radiation level in the environment is very important to assess its effects on human health living organisms. In this study, specific activity for 30 soil sediment samples collected from upstream outlet Qarasu River Gorgan Bay as well sediments eastern part were measured using High-Purity Germanium detec...

BACKGROUND Stingray injuries with potentially lethal outcomes have been described in the medical literature, but a stingray injury to a surfer does not belong to the injuries treated daily in Germany. PATIENTS We report on a stingray injury to a 31-year-old female with an uncommon course. RESULTS Diagnostics of and therapy for stingray injuries are described. CONCLUSION Stingray stings ar...

PageRank is primarily based on link structure analysis. Recently, it has been shown that content information can be utilized to improve link analysis. We propose a novel algorithm that harnesses the information contained in the history of a surfer to determine his topic of interest when he is on a given page. As the history is unavailable until query time, we guess it probabilistically so that ...

We consider the following problem: Given a finite number of sails of different sizes with prescribed shapes, given the speed of the wind, the weight of a surfer, the size and shape of a surfboard and a corresponding fin; determine the sail and the course such that the windsurfer achieves maximal speed. We develop a simple model for describing the movement of the windsurfer for maximizing the sp...

Abstract Resistivity survey was carried out in Enugu North, Southeastern Nigeria, order to evaluate the groundwater condition of area. The inadequacy surface water, proper knowledge aquifer and increasing population has affected extraction development Resistivity, thickness, depth, curve frequencies protection level were determined. result revealed a total 5–6 geoelectric layers with model curv...

Inspired by the “Silver Surfer” cartoons and movies, we designed and developed a surfboard travel interface, which works in either tilt or balance mode. The system supports the comparison of isometric and elastic devices for rate-controlled and position-controlled travel in virtual environments. In this paper, we demonstrate the interface as well as the setup of a complete virtual reality syste...

Ranking web pages for presenting the most relevant web pages to user’s queries is one of the main issues in any search engine. In this paper, two new ranking algorithms are offered, using Reinforcement Learning (RL) concepts. RL is a powerful technique of modern artificial intelligence that tunes agent’s parameters, interactively. In the first step, with formulation of ranking as an RL problem,...