Angebote zu "Quality" (18 Treffer)

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Environmental Impact Assessment using Geomatics...
55,90 € *
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Environmental Impact Assessment is essential for an ecologically sustainable development. The industrial and other activities of man have an impact on physical, chemical and biological processes occurring in the environment. The problems of soil and water quality in and around industries are attracting attention for the last couple of decades due to unscientific industrialization, indiscriminate disposal of solid/liquid waste and extensive use of chemicals. The comprehensive analysis is may address the soil/water quality issues in industrial areas. In this work we have taken Pharmaceutical industry as case to study the water/soil quality. The water/soil analyzed sample values are used for the preparation of Soil Quality Index (SQI) & Water Quality Index (WQI). The emerging technologies Remote sensing, GIS, GPS and field studies are used for the generation of various thematic maps. The spatial distribution maps of soil and water quality parameters are generated using ArcGIS software for assessing the impact levels around the industry. Based on the findings of pollution impact levels, the suitable remedial measures are suggested along with a proforma of Environmental Management Plan.

Anbieter: Dodax
Stand: 09.04.2020
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Monitoring, Evaluation, and Modelling of potabl...
55,90 € *
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The most effective means of consistently ensuring the safety of a drinking water supply is through the use of a comprehensive risk assessment approach that encompasses all steps in water supply from catchment to consumer. The approach of this book is to promote an understanding of the entire water supply system, including the hazards that can compromise drinking water quality, safety and develops effective measures to assess and manage risks arising from those hazards using spatial model. Comparative evaluation of certain physical, chemical and biological characteristics of raw, treated and potable water at distribution network has been ongoing. Applying a GIS model will provide visual impacts for various hazards using WQI, which has formed a series of prediction maps for risk assessment. The objective of this book is to help researchers, professionals, and end-users working in water supply systems with the identification of relevant hazards by providing a catalogue with potential hazards of technical, environmental or human origin for the entire system.

Anbieter: Dodax
Stand: 09.04.2020
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GIS in Groundwater Distribution Pattern & Quali...
55,90 € *
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The book describes the role of Geographical Information System and Remote Sensing in modeling the groundwater distribution pattern and quality in the state of Rajasthan in India. Groundwater table map of various time series (pre and post monsoon), rainfall maps and fluctuating patterns have been generated using the groundwater level data of pre and post monsoon seasons and daily rainfall datasets of Rajasthan. Further, the OCEANSAT - 2 OCM satellite data has been used for generating the Normalized Difference Vegetation Index maps. Groundwater quality maps (WQI maps) of Rajasthan have been generated using groundwater chemical data of the state. The WQI maps indicated that the groundwater quality decreases from the South-East to the North-West of the state. The safest zone is in the South-Eastern part of the study area. Various Geo-statistical techniques have been applied in generating all these maps.

Anbieter: Dodax
Stand: 09.04.2020
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Recycling of Aluminum Chips by Hot Extrusion
48,80 € *
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Recycling of aluminum chips by hot extrusion is a metal forming technique, which requires considerably less energy than conventional recycling by remelting. The aluminum chips sorted by alloy type were first chemically washed in a mid-alkaline bath and then completely dried in an industrial furnace, compacted to billets, heated up to extrusion temperature and directly extruded into finished products without remelting. This method utilizes not only significantly less energy compared to conventional recycling by remelting but also prevents the material loss that is typical in remelting of fine aluminum scrap in the form of chips.The main aim of this research was to investigate hot extrusion of aluminum chips including principles of operation, process technology and equipment, and to develop this process further by solving the encountered problems to allow its application in industry. First the effect of extrusion process parameters on the microstructure and mechanical properties of the profiles recycled from chips was investigated. It was shown that the extrusion parameters like extrusion ratio, die design and the billet temperature predominantly define the properties of the recycled profiles. The mechanism of chip welding during aluminum extrusion was investigated using the analysis of the microstructural evolution. Based on the analytical solutions for the problem of longitudinal seam weld formation, a new approach was developed to analyze the welding of the aluminum chips. The boundary conditions for sound chip welding can be defined using the proposed analytical approach as well as with the help of simulations using the finite element method (FEM). A welding-quality-index (WQI) is introduced to define the chip welding quality under given process conditions, which can be used to quantitatively evaluate the success of recycling aluminum chips by hot extrusion. An innovative process design utilizing a closing cap and a new punch design was developed to eliminate the formation of air blisters during hot extrusion of chips.

Anbieter: Dodax
Stand: 09.04.2020
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Biodiversity of Wetlands and Impact of Environm...
68,00 € *
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Wetlands are vital water bodies, as crucial in a natural ecosystem as kidney in a human body. Apart from being highly productive as the habitat of birds, fishes and a variety of other aquatic life forms-micro-organisms. Wetlands provide other ecosystem services from maintaining the natural balance and for sustaining human livelihoods. Overall wetlands all over the country are exhibiting varying degrees of environmental degradation caused by encroachments, Eutrophication, siltation, urbanization and anthropogenic activities. There is also a misconception that wetlands are only wastelands. As a result, many precious wetlands have been converted to other uses all over in the world. Highly adaptable solutions must be found to permit development activities, including tourism,subsistence agriculture, and conservation of wildlife to be each given a fair share' of the one biome the wetland. This book provides an overview of the wetland study including flora, avifauna, management and restoration measures. It contains methodology of avifaunal survey, water quality analysis and WQI. It should be especially useful to those who are working in the field of wetland and environment conservation.

Anbieter: Dodax
Stand: 09.04.2020
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Estimation of Water Quality of River Hooghly by...
49,00 € *
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The availability of water in terms of both quantity and quality is essential to the very existence of mankind. Earlier people recognized the importance of water from quantity view point. Recognition of the importance of water quality developed more slowly. In the field of water resource management, information on the water quality is an essential input. Changes in water quality can be the result of domestic, industrial or agricultural discharges. The number of physical and chemical parameters such as pH, DO, alkalinity, conductivity, total solids, hardness, inorganic and organic trace elements etc. That needs to be monitored for proper assessment of water quality of any water resource is very large. In water resource management, where classification and comparison of different water resources on the basis of water quality is often requisite, it will be more convenient to integrate the data pool in some way to produce a single number. Water Quality Index (WQI) achieves these objectives and is of great value in water resource management.

Anbieter: Dodax
Stand: 09.04.2020
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Running Water Environment
94,90 € *
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Rivers play an imperative role in the development of nation and sustenance of life, which are being polluted due to acquisitive nature of human. Hydrobiology of river Ramganga from Kalagarh (upstream) to Moradabad city (down stream) also known as Brass city , have studied for three years. Spatio-temporal variations in several physico-chemical parameters, ichthyodiversity and fishing activities in the river were undertaken. The study exploring that the downstream of the river were heavily polluted due to excessive discharge of untreated industrial effluent containing heavy metals. The fish diversity includes total 26 species belonging to 9 families. Decreasing trend in the species richness was observed when moving to downstream which was related to less DO content and high load of pollution in the river. On the basis of Water Quality Index (WQI) the river was classified into permissible, slight, moderate and heavily polluted.Multivariate statistical methods were used for interpretations of hydrochemical parameters. The book would be of interest to Academicians,Aquatic Scientists, Researchers,Water works department,fishery department, Planners and Policy makers of river basin.

Anbieter: Dodax
Stand: 09.04.2020
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Ecohydrological Modeling of Dalvoy Lake in Myso...
87,90 € *
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This book deals with the impact of urbanization on Lake Ecosystem. There are six chapters in the book where, planning and scientific execution of the work is well done. The outcome of the study is very significant for the restoration and modeling for lake conservation. The longitudinal profile of the lake with hydrodynamics, climatological parameters and the impact of urban settlements are covered. A grid system of mapping to understand the downstream and upstream characteristics of the lake basin are presented. The WQI of the Lake are plotted. The software programme 'HYCH' has been used to know the quality of the water for Irrigational suitability (Handa, Piper, Stuyfzand, USSL and Wilcox). The lake sediments are analysed for grain size pattern and X-ray Diffractometer. The Ecological Modeling of the Dalvoy Lake was made using the statistical model of hydrochemical facies. To manage the nutrients, simulations were made using the PAMOLARE 1 layer model (UNEP-DTIE-IETC and ILEC).

Anbieter: Dodax
Stand: 09.04.2020
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Understanding intra-ring checking in Pinus radi...
59,00 € *
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Pinus radiata is the dominant plantation species of New Zealand. Sometimes it can develop wood quality flaw called intra-ring checking. The checks that appear in wood during kiln drying lower value of timber leading to loses for the forest industry. An exhaustive comparative study was conducted to see if the checked wood had some inherent properties that made it more susceptible to checking. It was found that checking could be influenced by tracheid geometry and cell wall thickness. If the wood had large tracheids with thin walls, it was more likely to develop checks during drying. Lignin distribution in the cell wall layers was also seen to play an important role in checking. Lower lignin levels and disruption in the pattern of lignification of the cell wall layers increased the tendency of the wood to develop checks. Similarly, if the tracheids had larger pits then their tendency to check increased. This study(funded by WQI Ltd, New Zealand) was undertaken as a part of collaborative work that was carried out to understand wood quality issues in Pinus radiata, with a vision of improving its wood quality.

Anbieter: Dodax
Stand: 09.04.2020
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