PERSPECTIVES FOR USING IRON-MANGANESE CONCRETIONS TO IMPROVE THE STATE OF THE BALIC SEA ENVIRONMENT

2011 ◽  
Author(s):  
Dmitriy Zhukov
Keyword(s):  
The State ◽  
Iron Manganese

scholarly journals AVAILABILITY AND SPATIAL VARIABILITY OF COPPER, IRON, MANGANESE AND ZINC IN SOILS OF THE STATE OF CEARÁ, BRAZIL

2021 ◽  
pp. 398-412
Author(s):  
Mara Lucia Jacinto Oliveira ◽  
Gustavo Souza Valladares ◽  
Johnston Silva Vieira ◽  
Ricardo Marques Coelho
Keyword(s):  
Spatial Variability ◽  
The State ◽  
Iron Manganese

scholarly journals Availability and spatial variability of copper, iron, manganese and zinc in soils of the State of Ceará, Brazil

2018 ◽  
Vol 49 (3) ◽  
Author(s):  
Mara Lucia Jacinto Oliveira ◽  
Gustavo Souza Valladares ◽  
Johnston Silva Vieira ◽  
Ricardo Marques Coelho
Keyword(s):  
Spatial Variability ◽  
The State ◽  
Iron Manganese

Assessing the potential use of abandoned mining pools as an alternative resource of raw water supply

2015 ◽  
Vol 16 (2) ◽  
pp. 410-417 ◽  
Author(s):  
Faradiella Mohd Kusin ◽  
Mohd Syakirin Md Zahar ◽  
Siti Nurjaliah Muhammad ◽  
Zafira Md Zin ◽  
Sharifah Mohd Sharif
Keyword(s):  
Water Treatment ◽  
Water Supply ◽  
Potable Water ◽  
The State ◽  
Raw Water ◽  
Water Treatment Plants ◽  
Main River ◽  
Iron Manganese ◽  
Alternative Resource ◽  
Potential Use

The water crisis in the state of Selangor has prompted the state water authority to use water from abandoned mining pools as an alternative resource of raw water supply. In this study, the potential use of the mining pool water has been assessed to evaluate its safe use for potable water consumption, which is the source of raw water to be supplied to water treatment plants. Assessments were made between sampling sites that include abandoned mining pools, active sand mining pools, and the receiving streams (two tributaries and the main river, Selangor River) within Bestari Jaya catchment, Selangor River Basin. As anticipated, some concentrations of metals were found in the active mining pool and in its discharge, such as iron, manganese, lead, copper and zinc. However, the trace elements were found at very low concentrations or below detection limits in the abandoned mining pools and in the rivers. It was found that generally the quality of the water in the rivers (upstream of water intake of the water treatment plants) was well below the recommended guideline limits set out by the Malaysia Ministry of Health for untreated raw water, and therefore is safe for potable water use.

Practical Picture Processing

1974 ◽  
Vol 32 ◽  
pp. 338-339
Author(s):  
T. A. Welton
Keyword(s):  
Radiation Damage ◽  
Coherence Length ◽  
Spatial Information ◽  
State Of The Art ◽  
Coherent Radiation ◽  
The State ◽  
Energy Spread ◽  
Electron Micrograph ◽  
Picture Processing ◽  
Molecular Skeleton

Various authors have emphasized the spatial information resident in an electron micrograph taken with adequately coherent radiation. In view of the completion of at least one such instrument, this opportunity is taken to summarize the state of the art of processing such micrographs. We use the usual symbols for the aberration coefficients, and supplement these with £ and 6 for the transverse coherence length and the fractional energy spread respectively. He also assume a weak, biologically interesting sample, with principal interest lying in the molecular skeleton remaining after obvious hydrogen loss and other radiation damage has occurred.

Solid Solution Effects and Deformation Micros trueture of Shock-Loaded Iron Manganese Alloys

1970 ◽  
Vol 28 ◽  
pp. 420-421
Author(s):  
A. Christou ◽  
J. V. Foltz ◽  
N. Brown
Keyword(s):  
Solid Solution ◽  
Shock Loading ◽  
High Strain ◽  
Local Stress ◽  
Strain Rates ◽  
Local Stress Concentration ◽  
Bcc Metals ◽  
Manganese Alloys ◽  
Iron Manganese ◽  
Transmission Microscope

In general, all BCC transition metals have been observed to twin under appropriate conditions. At the present time various experimental reports of solid solution effects on BCC metals have been made. Indications are that solid solution effects are important in the formation of twins. The formation of twins in metals and alloys may be explained in terms of dislocation mechanisms. It has been suggested that twins are nucleated by the achievement of local stress-concentration of the order of 15 to 45 times the applied stress. Prietner and Leslie have found that twins in BCC metals are nucleated at intersections of (110) and (112) or (112) and (112) type of planes.In this paper, observations are reported of a transmission microscope study of the iron manganese series under conditions in which twins both were and were not formed. High strain rates produced by shock loading provided the appropriate deformation conditions. The workhardening mechanisms of one alloy (Fe - 7.37 wt% Mn) were studied in detail.

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