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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

Exact unconditional tests for 2x2 contingency tables

Suissa, Samy Salomon, January 1982 (has links)
Thesis (Ph. D.)--University of Florida, 1982. / Description based on print version record. Typescript. Vita. Includes bibliographical references (leaves 98-100).
32

Untersuchungen zu Opfertafeln im Alten Reich /

Mostafa, Moha M. F. January 1982 (has links)
Diss. : Philosophische Fakultät : Bonn : 1980. - Notes bibliogr. Index. -
33

Thermodynamic functions for halogenated benzenes

Butler, Jeremy Bruford January 1967 (has links)
The availability of molecular structural and spectrographic data has enabled the calculation of the ideal gas thermodynamic functions [formula omitted] for thirty eight halogenated benzenes. The thermodynamic functions are given for temperatures between 273.15° K. and 1500° K., at one atmosphere. The contribution of the anharmonicity effect to the thermodynamic properties is discussed. Additionally, a method is described for making real gas corrections to the ideal gas thermodynamic functions, however, only over a limited range of pressure and temperature (15 atm. to 0.25 atm. 273.15° K. to 1000° K.). This method, based on the Berthelot equation of state, requires the critical temperature and pressure, which are summarised in this work for several of the halogenated benzenes. As an example of the method, the real gas thermodynamic functions for fluorobenzene are shown, at pressures between 10 atm. and 0.25 atm. Finally the thermal stability of the halogenated benzenes is discussed and the temperatures over which the ideal gas thermodynamic functions are applicable are indicated. / Applied Science, Faculty of / Chemical and Biological Engineering, Department of / Graduate
34

Cost optimization of a structural roof system

Russell, Alan David January 1969 (has links)
The object of this investigation is to develop a procedure for the optimization of a roof system to yield minimum cost. The roof system is composed of parallel chord, steel trusses, with purlins and decking. The variables considered are geometry, topology, and member size. The optimal values of the geometry and topology variables are determined by the application of Box's Complex Method. A fully stressed design criterion is used in selecting the member sizes. It is shown that the optimization scheme always converges to a low cost region, although not necessarily to the global optimum. A cost model is developed that includes member-related costs and weight-related costs. Parameter studies demonstrate the importance of selecting the proper ratios of fixed and weight-related costs. / Applied Science, Faculty of / Civil Engineering, Department of / Graduate
35

Computer tablets as an educational tool in preschool and preschool-class

Andréason, Jennie January 2014 (has links)
Syftet med studien är att undersöka hur lärplattan kan användas som pedagogiskt verktyg i förskola och förskoleklass. Vi vill undersöka de lärande och sociala samspel som eventuellt sker mellan barnen. Vidare undersöks hur pedagogernas förhållningssätt inverkar på barnens möjlighet till lärande kring lärplattan. Pedagogernas syn på fördelar och nackdelar gällande lärplattan granskas. Studiens frågeställningar besvarades utifrån den sociokulturella teorin. Centrala begrepp som artefakter, mediering, proximal utvecklingzon och förhållningssätt verkade som analysverktyg. Studien har genomförts med hjälp av kvalitativ metod där intervjuer och observationer har gjorts på tre förskolor och en förskoleklass. Resultatet visar att lärplattan kan användas som både dokumentationsverktyg och pedagogiskt verktyg i barngruppen. Barnens lärande kring plattan utvecklas genom turtagning och samarbete. Den medforskande pedagogen ger större möjligheter för barns lärande genom att se och utmana dem på rätt nivå. Pedagogerna anser att en av lärplattans fördelar är dess lätthanterlighet. En nackdel är att vissa pedagoger känner att de har för lite kunskap om tekniken. Slutsatsen av våra resultat visar att lärplattan kan ha flera olika användningsområden, lärandet blir möjligt genom att barnen interagerar med varandra och lärplattan. Pedagogernas förhållningssätt har en inverkan på barns möjlighet till lärande. Utbildning rörande lärplattan är betydelsefull för att pedagogerna ska kunna nyttja plattan så optimalt som möjligt.Nyckelord: Förhållningssätt, förskola, förskoleklass, lärande, lärplatta, medierande artefakt, pedagogiskt verktyg.
36

An Interpolation Method for Obtaining Thermodynamic Properties near Saturated Liquid and Saturated Vapor Lines

Nguyen, Huy Hien 08 May 2004 (has links)
The two most common approaches used to formulate thermodynamic properties of pure substances are fundamental (or characteristic) equations of state (Helmholtz and Gibbs functions) and a piecemeal approach that is described in Adebiyi and Russell (1992). This thesis neither presents a different method to formulate thermodynamic properties of pure substances nor validates the aforementioned approaches. Rather its purpose is to present a method to generate property tables from existing property packages and a method to facilitate the accurate interpretation of fluid thermodynamic property data from those tables. There are two parts to this thesis. The first part of the thesis shows how efficient and usable property tables were generated, with the minimum number of data points, using an aerospace industry standard property package. The second part describes an innovative interpolation technique that has been developed to properly obtain thermodynamic properties near the saturated liquid and saturated vapor lines.
37

Airborne radar ground clutter return

McMillen, Robert A. January 1964 (has links)
Call number: LD2668 .T4 1964 M16 / Master of Science
38

An analysis of spring-beams having large deflections

Qi, Zhenqing. January 1965 (has links)
Call number: LD2668 .T4 1965 C53 / Master of Science
39

The relationship between stiffness & stresses of members of rigid framed structures

Kim, Hong Kyun. January 1965 (has links)
Call number: LD2668 .T4 1965 K49
40

Analysis of categorical data with misclassification errors.

January 1988 (has links)
by Chun-nam Lau. / Thesis (M.Ph.)--Chinese University of Hong Kong, 1988. / Bibliography: leaves 85-89.

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