Skip to main content
Title Pub Year Sort ascending Author SearchLink
Structure vibration with diesel engines 1976 Fachbach, Heinz A., Forsch. Vereinig. Verbrenn. Kraftmaschinen, Graz
Source Type
Print(0)
Ref Type
Generic
Periodical, Full
MTZ Motortechnische Zeitschrift
Periodical, Abbrev.
MOTORTECHN.Z.
Pub Date Free Form
1976/07
Volume
37
Issue
8-Jul
Start Page
269
Other Pages
274
Notes
Place of Publication
ISSN/ISBN
0024-8525
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
The aims of the research work described in this paper consist of a fundamental knowledge concerning vibration transmission from combustion chamber to the noise radiating external crankcase surfaces with watercooled inline engines; furthermore, the influence of cast iron and cast aluminium as a material of crankcase, the origin of the noise of crankshaftpulleys, as well as the attenuation of vibration isolating elements for pipe systems. With watercooled inline engines, the main part of vibration energy is transmitted from cobustion chamber via crankdrive components to the noise radiating external surface, the natural vibration modes of the force transmitting parts exerting the main influence on the vibration transfer. The prediction elaborated by theoretical considerations, that engines the casing of which consist of cast aluminium produce an essentially higher noise level compared to engines made of cast iron, could not be confirmed with running engines. The position of the axial bearing of crankshafts with inline engines as well as the mass of crankshaft pulleys have a certain influence on the noise radiated by crankshaft pulleys. The measures vibration isolation of the pulley as well as the noise attenuating enclosure, however, are much more effective. With exhaust pipe systems sufficient vibration attenuation can be achieved by means of corrugated pipes and socalled piston ring compensators, the arrangement being very advantageous. The vibration isolation of air intake and cooling water pipes can be carried out by means of flexible rubber tubes.
Descriptors
diesel engine, methodology, vibration
Links
Book Title
KORPERSCHALLAUSBREITUNG BEI DIESELMOTOREN
Database
Embase
Publisher
Data Source
Embase
Authors
Fachbach,H. A., Thien,G. E.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Inner ear decompression sickness 1976
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
The Laryngoscope
Periodical, Abbrev.
Laryngoscope
Pub Date Free Form
Sep
Volume
86
Issue
9
Start Page
1315
Other Pages
1327
Notes
LR: 20131121; JID: 8607378; 206GF3GB41 (Helium); S88TT14065 (Oxygen); OID: NASA: 76266481; ppublish
Place of Publication
UNITED STATES
ISSN/ISBN
0023-852X; 0023-852X
Accession Number
PMID: 957843
Language
eng
SubFile
Journal Article; IM; S
DOI
10.1288/00005537-197609000-00003 [doi]
Output Language
Unknown(0)
PMID
957843
Abstract
With recent increases in commercial, military, and sport diving to deeper depths, inner ear injuries during such exposures have been encountered more frequently and noted during several phases of diving: during compression, at stable deep depths, with excessive noise exposure in diving, and during decompression. The pathophysiology of these injuries differs, depending upon the phase of diving in which the injuries occur. In this report, 23 cases of hearing loss, tinnitus, and/or vertigo occurring during or shortly after decompression are presented. Thirteen of these cases occurred in helium-oxygen dives involving a change to air during the latter stages of decompression. A significant correlation is present between prompt recompression treatment, relief of symptoms, and lack of residual deficits. Current knowledge indicates that the management of otologic decompression sickness should include: 1. prompt recompression to at least 99 feet deeper than the symptom onset depth; 2. recompression using the previous helium-oxygen mixture when the injuries occur during or shortly after a switch from helium-oxygen to air during the latter stages of decompression; 3. the use of parenteral diazepam for symptom relief and cyclic inhalations of oxygen enriched treatment gases; and 4. the avoidance of further diving by divers who exhibit permanent inner ear injuries after the acute symptoms have subsided.
Descriptors
Adult, Air, Deafness/etiology, Decompression Sickness/complications/therapy, Diving, Ear, Inner, Helium, Humans, Oxygen, Tinnitus/etiology, Vertigo/etiology
Links
Book Title
Database
Publisher
Data Source
Authors
Farmer,J. C., Thomas,W. G., Youngblood,D. G., Bennett,P. B.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Breeding and fertility of the Egyptian spiny mouse, Acomys cahirinus: effect of different environments 1976 Nuffield Inst. Comp. Med., Zool. Soc., London
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Laboratory animals
Periodical, Abbrev.
Lab.Anim.
Pub Date Free Form
1976/
Volume
10
Issue
1
Start Page
15
Other Pages
24
Notes
Place of Publication
ISSN/ISBN
0023-6772
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
2 years experience with Acomys in one laboratory confirmed the slow breeding rate found by other workers. On moving the animals to another laboratory there was a 2-5 fold increase in breeding rate. The most likely explanation of this change was the presence of copper in the drinking water at the 1st laboratory, due to the use of copper water pipes. The data relating to maintenance and breeding of acomys for 2 years at the 2nd laboratory were analyzed to provide a more representative picture of the species.
Descriptors
copper, drinking water, breeding, fertility, mouse, pregnancy, theoretical study
Links
Book Title
Database
Embase; MEDLINE
Publisher
Data Source
Embase
Authors
Young,D. A. B.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Pharmacological activity of three fractions obtained by smoking cannabis through a water pipe 1976 Dept. Psychobiol., Esc. Paulista Med., Sao Paulo
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Bulletin on narcotics
Periodical, Abbrev.
Bull.Narc.
Pub Date Free Form
1976/
Volume
28
Issue
2
Start Page
49
Other Pages
56
Notes
Place of Publication
ISSN/ISBN
0007-523X
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Descriptors
cannabinol, cannabis, dronabinol, placebo, catatonia, cornea reflex, drug comparison, drug screening, intraperitoneal drug administration, motor activity, mouse, rabbit, sleep time, theoretical study
Links
Book Title
Database
Embase; MEDLINE
Publisher
Data Source
Embase
Authors
Savaki,H. E., Cunha,J., Carlini,E. A., Kephalas,T. A.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
On bacterial aftergrowth in drinking and industrial water. II. Apparative and processing influence upon the growth and the possibility of disinfection of ion exchange resin filter systems 1975 Zent. Hyg., Johann Wolfgang Goethe Univ., Frankfurt/M.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Periodical, Abbrev.
ZBL.BAKT.REIHE B
Pub Date Free Form
1975/
Volume
161
Issue
3
Start Page
248
Other Pages
265
Notes
Place of Publication
ISSN/ISBN
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
The comparative examination of numerous ion exchange resin filter systems for discontinuous water softening on the market revealed that apparative and processing characteristics are of great influence upon the aftergrowth of bacteria in the water of ion exchange resin systems. Within the examination it was taken into consideration that on the end delivery tube of the water pipe the conditions of the colony count were more unfavorable during the long standstill over a weekend than during the week. The less favorable conditions have therefore been examined separately. The work has been divided into six test series. In the first, 5 ion exchange resin systems of types A E are simultaneously tested for colony count in the water at the inflow to the apparatus and after its passage; regeneration was accomplished twice a week with sodium chloride. The data ascertained in the course of several weeks (without first data on mondays) and the separated monday data are examined according to logarithmic transformation with the assistance of variance analysis and the Newman Keuls test for differences. The results show that apparative parameters and those relevant to the technical process have an influence upon the bacterial aftergrowth in the water. The most favorable ion exchange resin filter is type E because it shows more favorable values than all other systems and the tapwater. In the second test series the systems A E were regenerated with 1% Chloramin T containing sodium chloride. The results show again the type E as the statistically significantly most favorable system in comparison with the others and the tapwater. In the third test series it has been examined whether the long period of standstill of the brine in the resin (which has probably been responsible for the good results of the type E) would lead to values just as favorable if transferred to another type of apparatus. Systems of type D were used which are substantially different to type E in various ways. The time of brine contact and the time of backwashing was varied. The results show differences. After statistical evaluation, however, it was found that they are not significant. In order to prove whether the period of standstill in a test apparatus N constructed according to the essential characteristics of type E has influence upon the bacterial growth within the system, two softeners of this kind were examined during the regeneration process with 15 and 30 min standstill of the brine after rising brining. The results demonstrate a significant difference between the weekly average colony count between 15 and 30 min of standstill. This proves that the favorable results of type E are due to the rising brining and a period of standstill of the brine at a minimum of 30 min in the resin bed. In the fifth test series it has been examined with two systems of type E whether a significant difference exists between system E1 with regeneration with 1% Chloramin T containing sodium chloride and system E2 with regeneration with normal sodium chloride. The results demonstrate an obvious difference which can also be proved statistically. This proves that under these apparative conditions with the rising brining an efficacious disinfection can be carried out. For clarification of the question of disinfection in the sixth test series it was found that by higher concentration of sodium chloride the bactericidal action of disinfectants is intensified.
Descriptors
drinking water, disinfection, methodology, microorganism, water supply
Links
Book Title
ZUR FRAGE DER NACHVERKEIMUNG VON TRINK- UND BRAUCHWASSER. II. APPARATIVE UND VERFAHRENSTECHNISCHE EINFLUSSE AUD DIE VERKEIMUNG UND DIE MOGLICHKEIT ZUR DESINFEKTION VON IONENAUSTAUSCHERANLAGEN
Database
Embase; MEDLINE
Publisher
Data Source
Embase
Authors
Schubert,R. H. W.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Hygienic aspects of microbic contamination of water basins (Russian) 1975 Inst. Obshch. Kommun. Gig., AMN SSSR, Moscow
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Vestnik Rossiiskoi akademii meditsinskikh nauk / Rossiiskaia akademiia meditsinskikh nauk
Periodical, Abbrev.
Vestn.Akad.Med.Nauk SSSR
Pub Date Free Form
1975/
Volume
30
Issue
3
Start Page
46
Other Pages
52
Notes
Place of Publication
ISSN/ISBN
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
The ever increasing microbial contamination of water sources in recent years plays a role in spreading intestinal diseases of bacterial and viral etiology. Particular significance attaches to microbial contamination during direct contacts of the population with water of reservoirs, during short term and long term recreation periods; such contamination is of importance in connection with the extensive development of recreation institutions for long term rest, located in the direct vicinity of water reservoirs. A number of problems are associated with self cleaning of water reservoirs (such as association of microbial, chemical and thermal pollution, determination of the correlation between health important microflora, pathogenic enterobacteria and viruses). A certain barrier role is effected by existing water pipe systems with respect to the most common chemical pollutants and pathogenic microflora. Formidable tasks face hygienists under the existing conditions of ever increasing microbial contamination of water reservoirs. (12 references).
Descriptors
bacteriology, methodology, microorganism, recreation, water pollution
Links
Book Title
Database
Embase
Publisher
Data Source
Embase
Authors
Nikolaeva,T. A., Bagdasariyan,G. A., Itskova,A. I., Talaeva Yu.,G.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
The hydraulic calculation of sludge water pipes at sewage water purification plants (Dutch) 1975
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Periodical, Abbrev.
POLYTECHN.T.ED.PROCESTECHN.
Pub Date Free Form
1975/
Volume
30
Issue
26
Start Page
871
Other Pages
876
Notes
Place of Publication
ISSN/ISBN
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
This article proposes to describe the theoretical expectations involved in sewage system design. Sewage sludge corresponds in the study of liquids to a 'conglomerate' in the mineral world, that is, a 'hetergeneous water suspension'. Only three properties are clearly identifiable: the percentage of solid material to water; friction characteristics along the pipe walls; and increased viscosity at higher temperatures. These are discussed in some detail. The formulas of Bingham, Babbitt, and Caldwell are presented in their application to density, coefficient of internal viscosity, friction along the walls, and the graphics of design. Calculations are illustrated by examples. Roles for pipeline design are given for gravity piping and for pump installations.
Descriptors
sewer, sludge, therapy
Links
Book Title
Database
Embase
Publisher
Data Source
Embase
Authors
Noz,F. J.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
A skim milk stabilized water vaccine for Newcastle disease (B1-type LaSota): its effectiveness under modern commercial cage layer methods of delivery. 1975 Woodward, H.L.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Poultry science
Periodical, Abbrev.
Poult.Sci.
Pub Date Free Form
/
Volume
54
Issue
3
Start Page
866
Other Pages
871
Notes
Place of Publication
ISSN/ISBN
0032-5791
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
For flock vaccination, B1-type LaSota Newcastle disease water vaccine was used in chicken under commercial cage layer conditions using two different methods, Swish Corporation pipes and cups, and stainless stell troughs, in an effort to determine their effectiveness. The concentration of virus in trough and cup samples collected at the beginning and the end of the lines were the same except in one instance where little or no virus was transported to the end of the trough. Satisfactory results were obtained when the test was repeated a year later. Serum HI titers determined before and after vaccination demonstrated adequate flock serum titers and indicated that both methods of application were reasonably effective. In laboratory trials, different water pipes (black, polyvinyl chloride pipe and Hart cups, green, polyvinyl chloride pipe and Swish cups, and old, rusty, galvanized pipe) normally used in cage operations were tested. Our findings indicated that dried skim milk powder (DSMP) was essential in stabilizing vaccine virus in the containers tested and that an adequate vaccine virus concentration was maintained in the three types of pipe tested when DSMP was used. Without DSMP the vaccine titers were adversely affected.
Descriptors
virus vaccine, water, animal, animal housing, article, bird disease, chicken, fat intake, hemagglutination inhibition test, immunology, milk, Newcastle disease virus, oral drug administration, procedures, temperature
Links
Book Title
Database
MEDLINE
Publisher
Data Source
Embase
Authors
Woodward,H. L., Tudor,D. C.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Railroad installs 1600 foot wastewater line in 3 days 1975
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Periodical, Abbrev.
WATER SEWAGE WKS
Pub Date Free Form
1975/
Volume
122
Issue
2
Start Page
74
Other Pages
75
Notes
Place of Publication
ISSN/ISBN
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
This paper briefly details the use of Mono Line, a high density polyethylene waste water pipe, for the new industrial waste line at Milwaukee Railroad's St. Paul, Minn. shops. Mono Line is an engineered pipe with a wall thickness based on internal operating pressures and pipe size. It is a pipe designed for direct burial; a high degree of resistance to chemicals makes it ideal for carrying effluents, waste and sewage. It was particularly suitable for the St. Paul yards installation, since leaching action through the cinder fill set up corrosive sulfuric acid conditions destructive to ordinary pipe material.
Descriptors
environmental health
Links
Book Title
Database
Embase
Publisher
Data Source
Embase
Authors
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Lead in the environment; from where does it come and what becomes of it? 1974
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Chemisch Weekblad
Periodical, Abbrev.
CHEM.WEEKBL.
Pub Date Free Form
1974/
Volume
70
Issue
8
Start Page
M11; M12
Other Pages
M11; M12
Notes
Place of Publication
ISSN/ISBN
0009-2932
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Lead has been used by man since earliest historical times. Its present day applications include batteries, roofing, water pipes and radioactive shielding. Lead compounds are used in the paint industry, as additives to gasoline, in the glass industry, in type making and in pesticides. Lead can also be released in the atmosphere through natural means, such as forest fires and volcanic activity. Ten times as much lead arrives in the atmosphere from human activities, and the greatest part originates with the burning of gasoline. Lead exists in the atmosphere in particles. The concept of the Mass Equivalent Diameter (MED) used in measuring these particles is described as the fictitious diameter which is equivalent to the diameter of a pure spherical particle of a mass with the same falling speed as the particle in question. Mobility of these particles in exhaust gases is discussed. Lifetime in the atmosphere is also important, and appears to range from 20 to 40 days. Lead is also released into the soil and waters, and its concentration has increased sharply since World War II as a result of increased gasoline consumption on a world scale.
Descriptors
environmental health
Links
Book Title
LOOD IN HET MILIEU; WAAR KOMT HET VANDAAN EN WAT GEBEURT ERMEE?
Database
Embase
Publisher
Data Source
Embase
Authors
Original/Translated Title
URL
Date of Electronic
PMCID
Editors