Narrow Your Results
NOTE: 1. This guide specification covers the requirements for three phase secondary unit substations for step-down operation at primary voltages of 601 volts through 38 kilovolts, and secondary voltages, of 600 volts or less. 2. When feasible, provide a separate liquid-filled...
A general wastewater overview that will examine secondary treatment. In secondary treatment biodegradable organic matter and suspended solids are removed, including unseen pollutants. This program discusses fixed growth systems, including trickling filters, which serve the dual...
Preface Those disorders in which dementia tends to be the presenting and predominant neurologic feature have been referred to as the "primary dementias." The primary dementias, such as Alzheimer's disease and frontotemporal dementia, have experienced an explosive rise in prevalence as the...
This specification covers the material requirements for labels used on secondary surfaces such as in the trunk, on jacks, foundation board liners, etc, and other areas not directly exposed to direct weathering. The labels may be permanently affixed to the surface or attached with a tether....
4.1 Elemental constituents in potable water, receiving water, and wastewater need to be identified for support of effective pollution control programs. Test Methods A, B, and C provide the techniques necessary to make such measurements. 4.2 Although inhaled manganese dusts have been...
4.1 Elemental constituents in potable water, receiving water, and wastewater need to be identified for support of effective pollution control programs. Test Methods A, B, and C provide the techniques necessary to make such measurements. 4.2 Although inhaled manganese dusts have been...
Elemental constituents in potable water, receiving water, and wastewater need to be identified for support of effective pollution control programs. Test Methods A, B, and C provide the techniques necessary to make such measurements. Although inhaled manganese dusts have been reported...
This procedure is used to determine the secondary work embrittlement temperature (also known as the cold work embrittlement temperature) for sheet steels. This test procedure is primarily applicable to interstitial free and rephosphorized steels.
This SAE Recommended Practice establishes a uniform procedure for assuring the manufactured quality, installed utility and performance of automotive products to the relocation, alteration, replacement, and/or extension of secondary controls and systems other than those provided by the...
This book identifies neglected areas of research and indicates how research results can be integrated in secondary school curricula. It compares research findings and encourages cooperation in a field of particular interest. Authors: P. Heywood, K. Wain, J. Calleja
The use of secondary data for research can offer benefits, particularly when limited resources are available for conducting research using primary methods. Researchers and students at both undergraduate and postgraduate levels, including their academic instructors, are increasingly...
Introduction Secondary cells are those where the chemical reaction that produces electricity can be reversed. This means that when a cell is "run down", it can be re-charged by passing electricity through it in the opposite direction. This, in effect, stores up another supply of electricity...
Plant cell cultures are used extensively in studies of secondary metabolism, for the biosynthesis of pharmaceuticals, flavors, essences, and pigments. This book highlights recent developments in the in vitro growth of cultured plant cells and in the production of valuable secondary...
This standard specifies designations, chemical composition, marking and other requirements for secondary zinc. These grades are mainly used for hot dip-galvanizing purposes according to EN ISO 1461 and for the production of brass. Secondary zinc can be produced by different processes...
INTRODUCTION Nitrification is a microbiological process by which reduced nitrogen compounds (primarily ammonia) are sequentially oxidized to nitrite and nitrate (AWWA and EES 2002). Nitrification can be problematic in potable water systems that use chloramines for residual (or...
This book provides a comprehensive examination of biochemical and genetic regulatory phenomena as they relate to the activity of actinomycete secondary metabolic pathways and the functioning of secondary metabolites as endogenous effectors of cytodifferentiation.
This Standard specifies requirements for copper and aluminum conductor secondary and serviceentrance cables intended for use on systems having a nominal voltage of 600 V or less in underground installation a) by direct burial; or b) in duct systems. This Standard also applies to...
This Practice describes minimum requirements for design, performance, inspection, testing, and documentation, for delayed transfer automatic transfer systems (ATS) for two-source secondary selective substations. ATS provides automatic restoration of bus voltage upon loss of one of the...
