Autonomous VPS-based Manganese Prediction System for Sub-tropical Water Reservoirs

ABSTRACT. Limnological Survey of three Tropical Water Reservoirs in Eastern India. Plankton communities of three water reservoirs of India reflect direct relationship with organic pollution. The assessment of water quality as high or low organically polluted for three water bodies have been achieved with help of algal community, which can be used as indicator of organic pollution. Algal pollution indices according to Palmer (1969) and Watanabe’s (1962) based on genus and species were used in rating water samples for high or low organic pollution. Among 26 genera found in India 20 most frequent and common genera of algae were taken into account for indexing pollution status. Water Quality Index (WQI) on the basis of weighting and rating of the chemical parameter was also used to correlate the Palmer index with Physical-chemical parameters of water reservoirs.Key Words. Palmer Index, organic pollution, water reservoir, algae, plankton, water quality index.RESUMEN. Estudio limnológico de tres embalses de la India Oriental. Las comunidades planctónicas de tres embalses de la India reflejan relaciones directas con la polución orgánica. Se ha evaluado la calidad del agua de estos embalses atendiendo a la comunidad algal que alojan, lo que puede usarse como indicador de polución orgánica. Se ordenaron las muestras de agua, desde alta hasta baja polución orgánica, de acuerdo con los índices de Palmer (1969) y Watanabe (1962) basados en géneros y especies. Entre los 26 géneros encontrados en la India, se seleccionaron los 20 más comunes y frecuentes para los cálculos de los índices citados. También se calculó el índice de la calidad del agua (Water Quality Index, WQI), y se correlacionó con el índice algal de Palmer así como con los parámetros físico-químicos del agua de los embalses.Palabras clave. Índice de Palmer, polución orgánica, embalses, algas, plancton, índice de calidad del agua.

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Bistatic optoelectronic communication systems. Field experiments in artificial and natural water reservoirs

Оптика атмосферы и океана ◽

10.15372/aoo20170111 ◽

2017 ◽

Keyword(s):

Natural Water ◽

Communication Systems ◽

Field Experiments ◽

Water Reservoirs

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Application of the Boundary Element Method and Modal Analysis to Tire Acoustics Problems

Tire Science and Technology ◽

10.2346/1.2139524 ◽

1993 ◽

Vol 21 (2) ◽

pp. 66-90 ◽

Cited By ~ 10

Author(s):

Y. Nakajima ◽

Y. Inoue ◽

H. Ogawa

Keyword(s):

Finite Element ◽

Boundary Element Method ◽

Boundary Element ◽

Acoustic Radiation ◽

Traffic Noise ◽

Noise Prediction ◽

Prediction System ◽

Tire Noise ◽

Acoustic Contribution ◽

Element Method

Abstract Road traffic noise needs to be reduced, because traffic volume is increasing every year. The noise generated from a tire is becoming one of the dominant sources in the total traffic noise because the engine noise is constantly being reduced by the vehicle manufacturers. Although the acoustic intensity measurement technology has been enhanced by the recent developments in digital measurement techniques, repetitive measurements are necessary to find effective ways for noise control. Hence, a simulation method to predict generated noise is required to replace the time-consuming experiments. The boundary element method (BEM) is applied to predict the acoustic radiation caused by the vibration of a tire sidewall and a tire noise prediction system is developed. The BEM requires the geometry and the modal characteristics of a tire which are provided by an experiment or the finite element method (FEM). Since the finite element procedure is applied to the prediction of modal characteristics in a tire noise prediction system, the acoustic pressure can be predicted without any measurements. Furthermore, the acoustic contribution analysis obtained from the post-processing of the predicted results is very helpful to know where and how the design change affects the acoustic radiation. The predictability of this system is verified by measurements and the acoustic contribution analysis is applied to tire noise control.

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CRITICAL FACTORS OF WATER CONTENT FOR FISH STOCKS IN THE WATER RESERVOIRS OF KAZAKHSTAN

VESTNIK OF ASTRAKHAN STATE TECHNICAL UNIVERSITY SERIES FISHING INDUSTRY ◽

10.24143/2073-5529-2017-1-9-18 ◽

2017 ◽

pp. 9-18

Author(s):

Saule Zhangirovna Asylbekova ◽

Kuanysh Baibulatovich Isbekov ◽

Evgeniy Vyacheslavovich Kulikov

Keyword(s):

Water Content ◽

Water Level ◽

Water Availability ◽

Hydrological Regime ◽

Fishing Effort ◽

Water Reservoirs ◽

The Caspian Sea ◽

Annual Fish ◽

Commercial Fish ◽

Fish Stocks

The hydrological regime of water reservoirs in different years has a decisive impact on the abundance of commercial fish stocks and the quality of ichthyocenoses. In this connection in 2015-2016 there was conducted a retrospective analysis and ranking of hydrological regime impact on these factors. The paper gives evaluation of catches and fish stocks under different scenarios of water availability in the main fishing ponds of the Republic of Kazakhstan that give about 80% of the annual fish catch of the country (except the Caspian Sea). There were analyzed 2000 factors of hydrological regime (water level, annual discharge) and 1845 factors of fishing stocks (catches, abundance, fish biomass). The paper determines the critical characteristics of water availability for fish stocks. There have been proposed a number of administrative decisions and actions in case if water content would approach to the critical level. Among them: limitation of fish catches in the following year; widening zones restricted for fishing; intensification of safety measures of the fish young in residual ponds during arid periods; introduction of catch standards for a unit of fishing effort in low-water years, high-water years and years with normal water level in rivers.

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Short-Term Flood Prediction System

Geoinformatica Polonica ◽

10.2478/gein-2014-0005 ◽

2014 ◽

Vol 13 (1) ◽

Author(s):

Konrad Nering

Keyword(s):

Flash Floods ◽

Prediction System ◽

Short Term ◽

Data Set ◽

Flood Prediction ◽

Full Operation

AbstractThis paper describes a fully functional short-term flood prediction system. Its effect has been tested on watershed of Lubieńka river in Małopolska. To use this system it must have a data set also described in this paper. A modification of the system to adopt for predicting flash floods was described. Full operation of the system is shown on example of real flood on Lubieńka river in June 2011.

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