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Head loss in water pipes 1981 Dept. Civ. Engin., Univ. Alberta, Edmonton T6G 2G7
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Print(0)
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Journal Article
Periodical, Full
Environmental Technology Letters
Periodical, Abbrev.
ENVIRON.TECHNOL.LETT.
Pub Date Free Form
1981/
Volume
2
Issue
4
Start Page
171
Other Pages
178
Notes
Place of Publication
ISSN/ISBN
0143-2060
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
A unique method of calculating the head loss in water lines is presented. A table of 'Resistance' values, based on the Hazen & William's formula enables the rapid computation of head loss for single, series or parallel pipes.
Descriptors
drinking water, pipeline, prevention, sewage treatment, therapy, water treatment
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Book Title
Database
Embase
Publisher
Data Source
Embase
Authors
Bouthillier,P. H.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Water and hygiene: The case of North Carolina farmworkers 1986 Dept. of Environmental Sciences and Engineering, School of Public Health, University of North Carolina, Chapel Hill, NC 27514
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of environmental health
Periodical, Abbrev.
J.Environ.Health
Pub Date Free Form
1986/
Volume
49
Issue
1
Start Page
24
Other Pages
27
Notes
Place of Publication
ISSN/ISBN
0022-0892
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
This study uses a linear regression model to examine the determinants of reported personal hygiene practices of children in 87 migrant and seasonal farmworker families in eastern North Carolina. The results suggest that by ensuring that families have water piped into multiple taps in the house, handwashing is substantially increased and that by having access to heated water and showers, bathing of children, too, may be substantially increased. It is concluded that if hygiene practices of farmworkers are to be improved, enforcement of existing State and Federal legislation will have to be improved and amendments to this legislation enacted.
Descriptors
agricultural worker, child, geographic distribution, human, migrant worker, normal human, organization and management, personal hygiene, prevention, United States, water supply
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Database
Embase
Publisher
Data Source
Embase
Authors
Briscoe,J., Barron,W.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Nitrogen oxide reduction by application of two stage combustion: some tests on an industrial water pipe boiler (Dutch) 1976 NV Nederlandse Gasunie, Groningen
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Periodical, Abbrev.
POLYTECHN.T.ED.PROCESTECHN.
Pub Date Free Form
1976/
Volume
31
Issue
5
Start Page
303
Other Pages
308
Notes
Place of Publication
ISSN/ISBN
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Descriptors
nitrogen oxide, oil, boiler, gas, pollution control, prevention
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Book Title
Database
Embase
Publisher
Data Source
Embase
Authors
Broer,W. T., Schalke,P., De Weert,G.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Boom and bust inflation: a graceful exit via compact extra dimensions 2008
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Phys Rev Lett
Periodical, Abbrev.
Phys.Rev.Lett.
Pub Date Free Form
Volume
101
Issue
22
Start Page
221302
Other Pages
221302
Notes
ID: 19113473
Place of Publication
ISSN/ISBN
Accession Number
Language
en
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
A model of inflation is proposed in which compact extra dimensions allow a graceful exit without recourse to flat potentials or super-Planckian field values. Though bubbles of true vacuum are too sparse to uniformly reheat the Universe by colliding with each other, a compact dimension enables a single bubble to uniformly reheat by colliding with itself. This mechanism, which generates an approximately scale invariant perturbation spectrum, requires that inflation be driven by a bulk field, that vacuum decay be slow, and that the extra dimension be at least a hundred times larger than the false vacuum Hubble length.
Descriptors
Links
http://pesquisa.bvsalud.org/ghl/resource/en/mdl-19113473
Book Title
Database
MEDLINE; http://www.globalhealthlibrary.net/
Publisher
Data Source
Authors
Brown,Adam R.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Oscillations of plants' stems and their damping: Theory and experimentation 2003 Spatz, H.-C., Institut für Biologie III, Universität Freiburg, 79104 Freiburg, Germany
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Philosophical Transactions of the Royal Society B: Biological Sciences
Periodical, Abbrev.
Philos.Trans.R.Soc.B Biol.Sci.
Pub Date Free Form
2003/09
Volume
358
Issue
1437
Start Page
1487
Other Pages
1492
Notes
Place of Publication
ISSN/ISBN
0962-8436
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Free oscillations of upright plants' stems, or in technical terms slender tapered rods with one end free, can be modelled by considering the equilibrium between bending moments and moments resulting from inertia. For stems with apical loads and negligible mass of the stem and for stems with finite mass but without top loading, analytical solutions of the differential equations with appropriate boundary conditions are available for a finite number of cases. For other cases approximations leading to an upper and a lower estimate of the frequency of oscillation ω can be derived. For the limiting case of ω = 0, the differential equations are identical with Greenhill's equations for the stability against Euler buckling of slender poles. To illustrate, the oscillation frequencies of 25 spruce trees (Picea sitchensis (Bong.) Carr.) were compared with those calculated on the basis of their morphology, their density and their static elasticity modulus. For Arundo donax L. and Cyperus alternifolius L. the observed oscillation frequency was used in turn to calculate the dynamic elasticity modulus, which was compared with that determined in three-point bending. Oscillation damping was observed for A. donax and C. alternifolius for plants' stems with and without leaves or inflorescence. In C. alternifolius the difference can be attributed to the aerodynamic resistance of the leaves, whereas in A. donax structural damping in addition plays a major role.
Descriptors
biological model, biomechanics, comparative study, conference paper, Cyperus, elasticity, oscillometry, physiology, plant stem, Poaceae, spruce, United Kingdom
Links
Book Title
Database
MEDLINE
Publisher
Data Source
Embase
Authors
Brüchert,F., Speck,O., Spatz,H. -C
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Legionellosis in meat-packing combines of the Lithuanian SSR 1989 Bunikis, I.A.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Gigiena truda i professional'nye zabolevaniia
Periodical, Abbrev.
Gig.Tr.Prof.Zabol.
Pub Date Free Form
/
Volume
Issue
12
Start Page
14
Other Pages
16
Notes
Place of Publication
ISSN/ISBN
0016-9919
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
The article presents the results of a study of Legionella pneumophila morbidity in Lithuanian meat-processing factory workers, as well as the specific position of legionellosis in the fever diseases structure among the workers of the industry. The technique showed that Legionella pneumophila 1st serogroup seropositive reaction was traced among the healthy workers in 0.2% (antibody titer 1:64). Rather high percentage (7.1%) of persons with specific antibodies was found among those who had suffered the fever disease 6 month before the examination. Among 191 fever patients examined, in 35 (18.3%) cases antibodies against L. pneumophila were detected in diagnostic titers. In 26 workers legionellosis was diagnosed as a result of serologic testing, and Pontiac fever cases were predominant. 1 case was subsequently followed by pneumonia. A chronic nature of epidemic manifestations of legionellosis was established. The pathogenic antigen was detected in 4 of 32 water samples taken from the factory water pipes.
Descriptors
bacterium antibody, article, blood, comparative study, disease transmission, human, immunology, incidence, Legionella, legionnaire disease, Lithuania, meat industry, microbiology, occupational disease, water supply
Links
Book Title
Legionellez na miasokombinatakh Litovskoi SSR.
Database
MEDLINE
Publisher
Data Source
Embase
Authors
Bunikis,I. A., Moteiunas,L. I., Tartakovskii,I. S., Gotvianskaia,T. P., Barkhatova,O. I.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Asset planning for water reticulation systems - The PARMS model 2003 Burn, S., CSIRO Bldg. Construction/Engineering, Highett, Vic. 3190, Australia
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Water Science and Technology: Water Supply
Periodical, Abbrev.
Water Sc.Technol.Water Supply
Pub Date Free Form
2003/
Volume
3
Issue
2-Jan
Start Page
55
Other Pages
62
Notes
Place of Publication
ISSN/ISBN
1606-9749
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Traditionally water reticulation systems have been operated so that pipeline repair/renewal occurs on a reactive basis, based upon the number of failures, the consequence of failure and the cost. Planning for future replacements and the costs associated with these has been based upon a best guess of pipe lifetimes, which have generally been very conservative, when compared to the actual pipe life obtained. Factors such as the required level of customer service, trade-offs between repair and renewal, or operating practices such as pressure reduction or shut-off block reduction have not been widely considered, except when they are required under the water authorities operating licence. To allow long-term strategies to be implemented for the repair/renewal of water pipelines, a Pipeline Asset and Risk Management System (PARMS) is being developed. This planning model has been designed to allow a range of "what if" scenarios to be analysed to determine their effects on water authorities' long-term costs. This model is based upon whole of life costing and includes data on externality and customer impact costs. It analyses the failures of individual pipe assets, rather than the traditional practice of predicting failure of pipe cohorts, currently used by many authorities. This paper discusses the application of the PARMS planning model to allow selection of pipeline repair/renewal, and briefly analyses the influences that a range of customer service or operating decisions can have on a water authority's capital and operational expenditure.
Descriptors
authority, conference paper, cost benefit analysis, environmental planning, pipeline, risk management, water supply
Links
Book Title
Database
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Publisher
Data Source
Embase
Authors
Burn,S., Tucker,S., Rahilly,M., Davis,P., Jarrett,R., Po,M.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Spontaneous pneumomediastinum as a consequence of cocaine use 1984 Department of Medicine, Division of Ambulatory and Consultative Medicine, Lenox Hill Hospital, New York, NY 10021
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
New York state journal of medicine
Periodical, Abbrev.
NEW YORK STATE J.MED.
Pub Date Free Form
1984/
Volume
84
Issue
12
Start Page
618
Other Pages
169
Notes
Place of Publication
ISSN/ISBN
0028-7628
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Cocaine base may be 'freed' from its hydrochloride salt by treating the cocaine with a basic solution and filtering the precipitate. The cocaine base is usually smoked in water pipes designed for this purpose. The smoke is inhaled deeply and for as prolonged a time as possible often accompanied by Valsalva's maneuver. Spontaneous pneumomediastinum has been reported in association with both marijuana7 and cocaine8 smoking. Other medical problems related to cocaine smoking include burns and a diminution in carbon dioxide diffusing capacity.9 As the prevalence of cocaine smoking increases, medical problems that result from this practice may increase in a similar manner.
Descriptors
cocaine, adverse drug reaction, case report, diagnosis, drug abuse, drug dependence, human, mediastinum, pneumomediastinum, priority journal, respiratory system, Valsalva maneuver
Links
Book Title
Database
Embase; MEDLINE
Publisher
Data Source
Embase
Authors
Bush,M. N., Rubenstein,R., Hoffman,I., Bruno,M. S.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Water mains and distribution pipes in soil - External corrosion and protection methods 2001 Camitz, G., Swedish Corrosion Institute, SE-104 05 Stockholm, Sweden
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Water Science and Technology: Water Supply
Periodical, Abbrev.
Water Sc.Technol.Water Supply
Pub Date Free Form
2001/
Volume
1
Issue
3
Start Page
97
Other Pages
105
Notes
Place of Publication
ISSN/ISBN
1606-9749
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Extensive statistical investigations based on damage reports show that the corrosion damage frequency for buried water mains and distribution pipelines in Sweden increased during the 1970s and 1980s. For this reason, a number of statistical and technical investigations of the corrosion and counter-measures were carried out. The paper reports on the corrosion damage statistics for water pipelines and the costs of the corrosion damage. Further, ways of actively working to reduce the corrosion damage frequency are described. These measures include the introduction of cast iron pipes with high quality coatings and the application of cathodic protection on different types of existing pipelines, and, further, the systematic replacement of pipeline sections, which show a high corrosion damage frequency.
Descriptors
drinking water, iron, conference paper, corrosion, pipeline, soil, statistics, Sweden, water supply
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Book Title
Database
Embase
Publisher
Data Source
Embase
Authors
Camitz,G.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Long-term exposure of Sitka spruce seedlings to trichloroacetic acid 2003 Cape, J.N., Centre for Ecology and Hydrology, Penicuik, Midlothian EH26 OQB, United Kingdom
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Environmental Science and Technology
Periodical, Abbrev.
Environ.Sci.Technol.
Pub Date Free Form
2003/07
Volume
37
Issue
13
Start Page
2953
Other Pages
2957
Notes
Place of Publication
ISSN/ISBN
0013-936X
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Trichloroacetic acid (TCA) has been implicated as an airborne pollutant responsible for adverse effects on forest health. There is considerable debate as to whether TCA observed in trees and forest soils is derived from atmospheric deposition or from in situ production. This experiment reports the results from treating 4-year-old Sitka spruce (Picea sitchensis (Bong.) Carr) plants in a greenhouse over a growing season with TCA supplied either to the soil or to the foliage at concentrations of 10 and 100 ng mL-1. Similar uptake of TCA by needles was observed for both modes of treatment, with significant accumulation of TCA (300 ng g-1 dry wt) at the higher concentration. Larger concentrations in stem tissue were seen for the foliar-applied TCA (280 ng g-1) than for the soil-applied TCA (70 ng g-1), suggesting that direct stem uptake may be important. Six months after treatments stopped, TCA concentrations in the needles of plants exposed to 100 ng mL-1 TCA were still enhanced, showing that biological degradation of TCA in needles was slow over the winter. By contrast, no significant enhancement of TCA in soil could be detected in the directly treated soils even during the experiment. The protein content of needles treated with the higher concentration of TCA by either route was significantly smaller than for the controls, but there was no effect of TCA on the conjugation of 1-chloro-2,4-dinitrobenzene in roots nor on the conjugation of 1,2-dichloro-4-nitrobenzene in needles.
Descriptors
1 chloro 2,4 dinitrobenzene, 1,2 dichloro 4 nitrobenzene, trichloroacetic acid, air pollutant, air pollution, article, atmospheric deposition, biodegradation, concentration (parameters), conjugation, controlled study, foliage, forest, forest soil, greenhouse, long term exposure, nonhuman, plant growth, plant root, plant stem, pollution transport, protein content, seedling, sitka spruce, winter
Links
Book Title
Database
Embase; MEDLINE
Publisher
Data Source
Embase
Authors
Cape,J. N., Reeves,N. M., Schröder,P., Heal,M. R.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors