Results 21 to 30 of about 330,749 (304)

Spectrometric study of condensed phase species of thorium and palladium-based modifiers in a complex matrix for electrothermal atomic absorption spectrometry [PDF]

open access: yes, 2007
The chemical and morphological transformations of condensed phase species of a thorium-based modifier were studied over the temperature range 200–2500 °C, without and with the presence of aluminium and silicon as matrix components, and in some instances,
Aller, A. J.   +4 more
core   +1 more source

The development of the technical systems preventive maintenance model based on availability and cost criterions compromise

open access: yesVojnotehnički Glasnik, 1995
The technical systems preventive maintenance complex model based on maximum availability and cost effectiveness criterions compromise has been developed.
Svetomir Minić , Živan Arsenić
doaj   +1 more source

Synthesis and characterization of nanozeolite based composite fertilizer for sustainable release and use efficiency of nutrients

open access: yesHeliyon, 2021
In this research work, we propose macronutrients incorporated slow-release based nano-fertilizer using nanozeolite as a carrier. A simple chemical approach was used to synthesis the proposed nanozeolite composite fertilizer (NZCF).
M.Z.H. Khan   +5 more
doaj   +1 more source

Arsenic Methyltransferase and Methylation of Inorganic Arsenic [PDF]

open access: yesBiomolecules, 2020
Arsenic occurs naturally in the environment, and exists predominantly as inorganic arsenite (As (III) and arsenate As (V)). Arsenic contamination of drinking water has long been recognized as a major global health concern. Arsenic exposure causes changes in skin color and lesions, and more severe health conditions such as black foot disease as well as ...
Nirmal K. Roy, Anthony Murphy, Max Costa
openaire   +3 more sources

The preventive maintenance trade-off model

open access: yesVojnotehnički Glasnik, 1997
The paper presents a general model for preventive maintenance of motor vehicles and other systems based on a 'trade-off' between maximum availability and minimum maintenance cost.
Svetomir Minić , Živan Arsenić
doaj   +1 more source

Characteristics of communication in people with severe and profound intellectual disability [PDF]

open access: yesSpecijalna Edukacija i Rehabilitacija, 2015
Persons with severe and profound intellectual disability (ID) have a wide range of difficulties. A number of difficulties, along with a delay in speech and language development, can greatly interfere with successful communication with others.
Banković Slobodan   +2 more
doaj   +1 more source

A Cross-Sectional Survey on Knowledge and Perceptions of Health Risks Associated with Arsenic and Mercury Contamination from Artisanal Gold mining in Tanzania. [PDF]

open access: yes, 2013
An estimated 0.5 to 1.5 million informal miners, of whom 30-50% are women, rely on artisanal mining for their livelihood in Tanzania. Mercury, used in the processing gold ore, and arsenic, which is a constituent of some ores, are common occupational ...
A Vreedzaa   +35 more
core   +2 more sources

The 'PROFAZ' software for management of preventive maintenance process

open access: yesVojnotehnički Glasnik, 1997
The preference intensity (index) of the decision-maker's preventive maintenance actions is determined by using the proposed fuzzy system of process management and the developed universal software 'PROFAZ' for solving an approximate reasoning algorithm.
Svetomir Minić , Živan Arsenić
doaj   +1 more source

The application of delay-time model for technical systems preventive maintenance

open access: yesVojnotehnički Glasnik, 1999
The 'delay time' preventive maintenance model which is based on the condition of a technical system stated during a scheduled checking, i.e., on so estimated 'delay time' to failure, is presented.
Svetomir Minić , Živan Arsenić
doaj   +1 more source

Association between body mass index and arsenic methylation in three studies of Bangladeshi adults and adolescents

open access: yesEnvironment International, 2021
Background: Water-borne arsenic (As) exposure is a global health problem. Once ingested, inorganic As (iAs) is methylated to mono-methyl (MMA) and dimethyl (DMA) arsenicals via one-carbon metabolism (OCM).
Ahlam Abuawad   +12 more
doaj   +1 more source

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