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  • Springer  (1,082)
  • Wiley-Blackwell  (284)
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  • 1
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    Moisture-assisted crack growth at epoxy–glass interfaces (1998)
    Springer
    Details
    Publication Date: 1998-09-01
    Print ISSN: 0022-2461
    Electronic ISSN: 1573-4803
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
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    PAPER CURRENT
  • 2
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    Building Better Interfaces for Remote Autonomous Systems (2021)
    Springer Nature | Springer
    Details
    Publication Date: 2024-04-14
    Description: This 'Open Access' SpringerBrief provides foundational knowledge for designing autonomous, asynchronous systems and explains aspects of users relevant to designing for these systems, introduces principles for user-centered design, and prepares readers for more advanced and specific readings. It provides context and the implications for design choices made during the design and development of the complex systems that are part of operation centers. As such, each chapter includes principles to summarize the design implication that engineers can use to inform their own design of interfaces for operation centers and similar systems. It includes example materials for the design of a fictitious system, which are referenced in the book and can be duplicated and extended for real systems. The design materials include a system overview, the system architecture, an example scenario, a stakeholder analysis, a task analysis, a description of the system and interface technology, and contextualized design guidelines. The guidelines can be specified because the user, the task, and the technology are well specified as an example. Building Better Interfaces for Remote Autonomous Systems is for working system engineers who are designing interfaces used in high throughput, high stake, operation centers (op centers) or control rooms, such as network operation centers (NOCs). Intended users will have a technical undergraduate degree (e.g., computer science) with little or no training in design, human sciences, or with human-centered iterative design methods and practices. Background research for the book was supplemented by interaction with the intended audience through a related project with L3Harris Technologies (formerly Harris Corporation).
    Keywords: User Interfaces and Human Computer Interaction ; Software Engineering ; Autonomous Systems ; User-Centered Design ; Operation Centres ; Interface Technology ; Human-Centered Design ; Open Access ; User interface design & usability ; thema EDItEUR::U Computing and Information Technology::UY Computer science::UYZ Human–computer interaction::UYZG User interface design and usability ; thema EDItEUR::U Computing and Information Technology::UM Computer programming / software engineering::UMZ Software Engineering
    Language: English
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    E-BOOK
  • 3
    Electronic Resource
    Electronic Resource
    Effets du groupement sur l'activité et la ponte du DoryphoreLeptinotarsa decemlineata Say (1961)
    Springer
    Insectes sociaux 8 (1961), S. 109-123 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary One of us has previously noted: On the one hand that the mean fecundity of females grouped in a breeding cage is reduced and that the eggs are deposited else here than on the branch of the potato plant; on the other hand that grouping diminishes the longevity and especially the food consumption of the insects. We also established a close correlation between the individual food consumption and the fecundity of the females. We resumed the experimental and stimultaneous study of these various factors with lots of 5 grouped females and 5 isolated females. The biometric analysis shows that the “regression” of longevity has a greater meaning than that of food consumption; but the difference between the lots of the isolated and those of the grouped is negligible in respect to longevity. On the contrary, the food consumption of the two binds of lots is markedly different; this explains in part the great difference in fecundity observed: the mean fecundity of the isolated females is 1.440 eggs, and that of the grouped ones 416 eggs. Taking into account the difference in fecundity due to the difference in food consumption, the first is reduced statistically from 1.023 to 677 eggs, the latter can be attributed in a significant manner to the effect of grouping. This phenomenon does not result from aneffet de masse, but presumably from the effect sensorial stimuli inhibiting certain physiological functions in a species that is typically solitary.
    Notes: Résumé Il est établi expérimentalement et analysé biométriquement que des femelles groupées deL. decemlineata présentent, par rapport à des femelles isolées: - une longévité un peu plus grande mais non significativement différente; - une consommation beaucoup plus faible; - une fécondité considérablement réduite. La différence de la fécondité n'est pas seulement due à la différence de consommation, mais vraisemblablement à des facteurs inhibiteurs intrinsèques.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02225736
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  • 4
    Electronic Resource
    Electronic Resource
    Verfahren zur Entwicklung von Kehrschaltungen (1941)
    Springer
    Electrical engineering 35 (1941), S. 299-306 
    Details
    ISSN: 1432-0487
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Zusammenfassung Das hier erläuterte Umkehrverfahren, das sich auf geometrische (richtiger topologische) Betrachtungen gründet, ermöglicht die Entwicklung von Schaltungen, die auf eine andere Art sehr zeitraubend, wenn nicht unmöglich wäre, so daß ihm praktisch Bedeutung zukommt. Es ergeben sich aber auch theoretische Einblicke in die Verwandtschaft gewisser Schaltungen. Es wird die Anwendung auf die Ableitung von frequenzreziproken Schaltungen angeregt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01657480
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  • 5
    Electronic Resource
    Electronic Resource
    Bestimmung der Oberwellenstreuung und der Zahnkopfstreuung bei Drehfeldmaschinen mit Hilfe der Feldtheorie (1982)
    Springer
    Electrical engineering 65 (1982), S. 355-362 
    Details
    ISSN: 1432-0487
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Description / Table of Contents: Contents Self- and mutual inductances of an a. c. machine with open slots on only one side of the air gap are determined by means of a field-theoretical approach. The leakage inductance is subdivided into its parts according to conventional definition. It is shown that only the sum of harmonic and tooth tip leakage is independant of the winding distribution on the other side of the air gap which is not slotted. Therefore the harmonic leakage coefficient and the specific tooth tip leakage permeance are shown in curves for integral slot windings of normal pitch under the assumption that the secondary winding is of the same distribution as the primary. The results show the influence of parameters which were not taken into account in machine design calculations hitherto.
    Notes: Übersicht Es wird ein feldtheoretischer Ansatz zur Bestimmung der Selbst- und Gegeninduktivität einer einseitig genuteten Drehfeldmaschine verwendet. Die Streuinduktivität wird in Anlehnung an die konventionelle Theorie in einzelne Anteile aufgespalten. — Es zeigt sich, daß die Komponenten Oberwellenstreuung und Zahnkopfstreuung auch von der Wicklungsverteilung im ungenuteten Teil abhängen, ihre Summe aber nicht. Deshalb werden der Koeffizient der Oberwellenstreuung und der spezifische Leitwert der Zahnkopfstreuung unter Voraussetzung gleicher Wicklungsverteilung wie im genuteten Teil definiert und für ungesehnte Ganzlochwicklungen in Kurvenform dargestellt. Die Ergebnisse zeigen den Einfluß der bei der Vorausberechnung von Drehfeldmaschinen bisher nicht berücksichtigten Parameter.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01583928
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  • 6
    Electronic Resource
    Electronic Resource
    Natural background and pollution levels of some heavy metals in soils from the area of Dayton, Ohio (1983)
    Springer
    Environmental geology 5 (1983), S. 73-78 
    Details
    ISSN: 1432-0495
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract In a reconnaissance study, trace amounts of Cd, Cu, Pb, and Zn were determined in “A-zone” soil from 22 locations in the Dayton, Ohio, area. Soil samples were collected at high-volume air monitoring sites in urban, suburban, and rural areas. Measurable amounts of the elements were found in all of the samples. Positive correlations occur between each metal and particulate matter, with correlation coefficients of aboutr=0.70, at the 99% confidence level. Natural background values for the elements were measured in soil from rural areas. Theoretical background values, which are very close to those measured, were calculated from the individual regression equations. Natural background levels do not exceed 1.00 ppm Cd, 15 ppm Cu, 25 ppm Pb, and 55 ppm Zn. The heavy metal contents of most soils in the area exceed background by factors of up to 3.0 for Cd, up to 4.5 for Cu, up to 11 for Pb, and up to 4.5 for Zn. Significant positive correlations among the metals suggest a common source (or sources) for at least some, if not most, of the heavy metals. For the most part, the highest metal values are found in soils near coal-burning plants. Fly ash from a local plant contains substantial amounts of the elements. The high lead values are largely due to vehicular exhaust. However, there is evidence that the metals can also come from the normal deterioration of vehicles. It appears that airborne pollution is an important source of heavy metals in Dayton area soils.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02381099
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  • 7
    Electronic Resource
    Electronic Resource
    The effects of channelization on a high-energy river (1979)
    Springer
    Environmental geology 3 (1979), S. 29-38 
    Details
    ISSN: 1432-0495
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Extensive channelization of a high-energy river in Montana was accomplished during 1957–1958. The technique applied was the same throughout, even the fluvial characteristics are considerably different in the and downstream segments of the river. In the braided reach, rubble dikes composed of river bedload that was against the channel banks prevent the river from high-stage channels which traverse the lowest surface in the valley. The river has responded by altering its hydrologic characteristics at any given discharge and by accelerating the lateral erosion where banks have been left unprotected. Downstream, where the river is in a single-channel pattern, the dikes have been destroyed because the meandering thalweg, repeatedly shifting its position and impinging against the base of the dikes, provides the force needed to erode the boulders comprising the dikes. Some bank protection is provided by riprap composed of large sandstone blocks. This method works, however, only if long segments of the channel are riprapped. The various responses of the river in reaches having different channel patterns indicates that some knowledge of local fluvial mechanics must be obtained prior to the channelization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02423276
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  • 8
    Electronic Resource
    Electronic Resource
    Zur Kohomologie von Gruppen mit abelschen Sylowuntergruppen (1970)
    Springer
    Manuscripta mathematica 3 (1970), S. 69-95 
    Details
    ISSN: 1432-1785
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract In 1962 Atiyah showed, with, the help of topological methods, the existence of a spectral sequence joining the cohomology ring of a finite group (with values in the rational integers) and the ring of generalized complex characters of the group. This paper undertakes to get that connection (at least in part) in a purely algebraic way. To that effect such ring filtrations of the character ring of a group are described that are functorially compatible with group morphisms and compatible with the induction of representations belonging to subgroups. The graded ring formed canonically by a filtration of that kind is to be compared with the cohomology ring of the same group, and it is shown, the group assumed to have abelian Sylow subgroups or to be a periodic group in a cohomological sense, that by taking a certain filtration its graded ring can be identified with a homomorphic part of the cohomology ring. (That corresponds to the infinite term of Atiyah's spectral sequence). The generalization of this result with respect to all finite groups has not yet been achieved; there is, however, a reduction theorem saying that it is sufficient to deal with groups of prime power order only. - As an application one gets lower bounds for the orders of the cohomology groups belonging to a finite group, especially, as a corollary, the theorem of its infinite cohomological dimension.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01168462
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  • 9
    Electronic Resource
    Electronic Resource
    Ueber Riemann'sche Formenschaaren auf einem beliebigen algebraischen Gebilde (1896)
    Springer
    Mathematische Annalen 47 (1896), S. 157-221 
    Details
    ISSN: 1432-1807
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01447267
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  • 10
    Electronic Resource
    Electronic Resource
    Optimization theory in linear spaces (1969)
    Springer
    Mathematische Annalen 183 (1969), S. 169-180 
    Details
    ISSN: 1432-1807
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01351377
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