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  • Artikel  (11)
  • China
  • Monitoring
  • Springer  (11)
  • American Chemical Society (ACS)
  • American Institute of Physics (AIP)
  • Institute of Electrical and Electronics Engineers (IEEE)
  • Sage Publications
  • 2010-2014
  • 1975-1979  (11)
  • Energietechnik  (8)
  • Biologie  (6)
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  • Artikel  (11)
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  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Environmental management 3 (1979), S. 283-288 
    ISSN: 1432-1009
    Schlagwort(e): Nonstationary time series ; Pollutants ; Dissolved oxygen ; Total dissolved solids ; Nitrates and nitrites ; Ammonia ; M-Dimensional time series ; Chicago sanitary and ship canal ; Sampling ; Monitoring
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik
    Notizen: Abstract A nonstationary time-series model is used to examine the changes occurring at sampling stations on the Chicago Sanitary and Ship Canal. Using data from upstream sampling sites, downstream levels of dissolved oxygen, total dissolved solids, nitrates and nitrites, and ammonia are accurately predicted. The method is simple, insensitive to extreme values, and responsive to changes in the system.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Environmental management 3 (1979), S. 217-235 
    ISSN: 1432-1009
    Schlagwort(e): Bioassay ; Monitoring ; Waste effluent ; Fish ; Lepomismacrochirus
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik
    Notizen: Abstract Spills of toxic materials into bodies of water receiving industrial waste discharges can be prevented only if frequent or continuous assessments of effluent quality can be made. Currently available methods can automatically measure individual physical or chemical waste components but cannot assess toxicity caused by the interaction of components or the presence of an unsuspected material. Aquatic organisms, in contrast, respond to their total environment and in this way integrate the effects of all the various chemical and physical waste parameters. This study evaluates the possibility of using the continuously and automatically recorded responses of fish to monitor the toxicity of industrial waste effluents. A review of previously developed toxicity monitoring systems is followed by a field evaluation of a method that uses the computer-monitored ventilatory patterns of 12 bluegills (Lepomis macrochirus Rafinesque) to monitor the toxicity of an industrial waste effluent as it flows into a river. No known toxic spills occurred in the effluent during the operation of this system, but acetone added to the effluent waste caused responses from the fish at concentrations which peaked near the 96-hr LC50 level. Some responses were also noted when no known toxicant was present; these were related to environmental disturbances and system design problems. Recommendations are made for the design of future biologic monitoring units.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Springer
    Human ecology 7 (1979), S. 119-133 
    ISSN: 1572-9915
    Schlagwort(e): energy ; China ; ecology ; development
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Energietechnik , Ethnologie
    Notizen: Abstract A quantitative analysis of major rural energy flows in the People's Republic of China shows that the nation 's countryside still depends predominantly on solar radiation transformed by green plants through photosynthesis into food, feed, fuel, and raw materials. Although a large-scale modernization effort currently under way aims to greatly increase the consumption of fossil fuels and electricity, it is argued that the country should not completely abandon its renewable rural energetics.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Springer
    Human ecology 7 (1979), S. 151-181 
    ISSN: 1572-9915
    Schlagwort(e): fertility ; nutrition ; workload ; China ; peasants
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Energietechnik , Ethnologie
    Notizen: Abstract The monthly distribution of live births was analyzed over a 51-year period, 1926–1976, for a rural Taiwan fishing community. Unlike previous studies of birth seasonality, monthly distributions of births did not deviate from what would be expected by chance. This new case is shown to be consistent with the suggestion, developed by Pasternak during a study of birth seasonality in two Taiwan farming communities, that for peasant cultivators the annual cycle of production exerts a more decisive influence on birth seasonality than time of marriage or attributes of temperature, rainfall, or workload. An hypothesis that links the productive cycle to conceptions through the intervening variable of diet is presented and successfully tested using several sets of data on monthly births. A direct effect of nutrition on human fertility, suggested by recent studies of reproductive performance under conditions of nutritional stress, may largely explain seasonality of conceptions and births in populations that experience significant seasonal variation in diet.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Springer
    Environmental management 2 (1978), S. 235-238 
    ISSN: 1432-1009
    Schlagwort(e): Carbon monoxide ; Monitoring ; Instrumentation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik
    Notizen: Abstract The information presented in this paper is directed to air pollution engineers who are concerned with monitoring Carbon Monoxide. This paper evaluates systems for CO sampling under conditions where the receptor is located at intersections within 40 meters of the road edge. Non-Dispersive Infrared and electrochemical analysis techniques are used in conjunction with continuous recording, continuous bag sampling, and meter readings at 5 second intervals. The relative accuracy of each system is examined and the conditions for which each system is best suited are described.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    ISSN: 1432-1009
    Schlagwort(e): Nonpoint pollution ; Water quality ; Monitoring ; Pollutional load
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik
    Notizen: Abstract Planning considerations to be evaluated early in the design of water quality monitoring programs are reviewed. These criteria emphasize the importance of isolating the study area, parameter section, and type of measurements required to ensure meaningful results. A demonstration automatic water quality monitoring program is described. Details with respect to type of equipment, coordination of component parts, sampling program, and analysis of specific parameters are reviewed. General costs of implementation and maintenance of such programs are presented.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Springer
    Human ecology 6 (1978), S. 299-323 
    ISSN: 1572-9915
    Schlagwort(e): births ; irrigation ; China
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Energietechnik , Ethnologie
    Notizen: Abstract Data from two rural Chinese settings suggest that an ecological variable — the reliability of food supply — may exert a more decisive influence on birth seasonality than time of marriage or attributes of temperature, rainfall, or workload. First births seem to be especially important for patterns of seasonality; comparison between villages suggests that a periodic but reliable source of food may encourage a seasonal distribution of first births, the effect of which might be to protect the mother and/or her newborn infant. It is the periodicity of first births that may give aggregate birth figures the appearance of seasonality.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    Springer
    Environmental management 1 (1977), S. 201-211 
    ISSN: 1432-1009
    Schlagwort(e): Coastal Zone ; Tidal Marshes ; Ecological Rating ; Relative Productivity ; Marsh Conservation ; Monitoring
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik
    Notizen: Abstract Ten intertidal salt marshes along the Rhode Island coast were sampled and compared in terms of the relative standing crop and height of tallSpartina alterniflora, density of shoots, seed production and size, fish populations, and the abundance of grass shrimp, fiddler crabs, insects, and birds. The marshes ranged from 0.49 to 52.61 hectares (1.2 to 130 acres) and included fringe marsh in dense urban developments as well as unspoiled waterfowl preserves in rural isolation. Large variation in most parameters made it impossible to separate the sites with statistical significance using either univariate or multivariate techniques. Moreover, there was little meaningful intercorrelation among the parameters. Although more intensive sampling might make it possible to separate individual marshes with statistical rigor, these results suggest that the necessary effort may be too great to allow comparative field sampling to play a practical part in wetlands evaluation programs. The results also indicate that there is little, if any, correlation between visual esthetic perceptions of a marsh and its ecological characteristics. This work suggests that the development of ecological rating systems will not provide a reliable tool for the management of coastal wetlands.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    Springer
    Medical & biological engineering & computing 15 (1977), S. 75-77 
    ISSN: 1741-0444
    Schlagwort(e): Artificial organs ; Monitoring
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie , Medizin
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    Springer
    Medical & biological engineering & computing 15 (1977), S. 333-334 
    ISSN: 1741-0444
    Schlagwort(e): Monitoring
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie , Medizin
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 11
    Digitale Medien
    Digitale Medien
    Springer
    Medical & biological engineering & computing 14 (1976), S. 61-64 
    ISSN: 1741-0444
    Schlagwort(e): Radiotelemetry ; Arterial pressure ; Transmitter ; Monitoring
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie , Medizin
    Beschreibung / Inhaltsverzeichnis: Sommaire On a conçu un transmetteur radiotélémétrique se conformant aux normes de télémtrie biomédicale du gouvernement britannique, pour l'entegistrement soit intermittent, soit continu de la pression intra-artérielle de sujets complètement ambulants. La fréquence d'un sous-porteur de 1 kHz est modulée par l'onde de pression, la fréquence du sous-porteur est elle-même modulée à 17060 MHz sur un oscillateur controlé par cristal, et après multiplication de la fréquence, produit un signal de sortie entrainant une antenne de demionde à 102 360 MHz. L'appareil a été utilisé avec succès pour des périodes de contrôle allant de 3 à 36 h.
    Kurzfassung: Zusammenfassung Es wurde ein Funktelemetrie-Sender, der den staatlichen britischen Vorschriften für die biomedizinische Telemetrie entspricht, für die zeitweise oder ständige Aufzeichnung des intra-arteriellen Drucks an völlig ambulanten Patienten erfunden. Durch die Druckwellenform wird die Frequenz eines Zwischenträgers von 1 kHz moduliert. Die Frequenz des Zwischenträgers wird wiederum bei 17 060 MHz zu einem quarzgesteuerten Oszillator moduliert, durch den sich nach Frequenzmultiplikation eine Leistung ergibt, die eine integrale Halbwellenantenne mit 102,360 MHz antreibt. Der Sender wurde mit Erfolg zur Überwachung von Zeiten zwischen 3 und 36 Stunden eingesetzt.
    Notizen: Abstract A radiotelemetry transmitter conforming to British Governmental specifications for biomedical telemetry has been devised for either intermittent or continuous recording of intra-arterial pressure in fully ambulant subjects. A1 kHz subcarrier is frequency modulated by the pressure waveform, the subcarrier being in turn frequency modulated on to a crystal-controlled oscillator at 17·060 MHz which, after frequency multiplication, produces an output to drive an integral halfwave aerial at 102·360 MHz. The apparatus has been successfully used for monitoring for periods of 3 to 36 h.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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