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The differential cross section for electron capture from helium by 293 keV protonsBratton, Tom R January 2011 (has links)
Typescript. / Digitized by Kansas Correctional Industries
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Occurrence and quality of information concerning guidance of the pre-adolescent (9-11 years) in guidance columns distributed by newspaper syndicatesYates, Maria Diana January 2011 (has links)
Digitized by Kansas State University Libraries
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Assessment of clamping behaviour of a newly developed blind bolt, and an investigation into its performance in the tension region of moment resisting connections using open and hollow sectionsBarnett, Tobias C. January 2001 (has links)
No description available.
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Measurements of cross sections for Higgs boson production and forward jet calibration with the ATLAS detectorQueitsch-Maitland, Michaela January 2016 (has links)
No description available.
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Design considerations for cold formed lipped channel steel sections in composite slab systemsPretorius, Jock Milne 06 May 2008 (has links)
The use of lipped channel members as the reinforcing for composite beams in rib
and block type slab systems is advantageous due to its lightweight nature which
facilitates efficiently in construction. The main consideration in the design if such
composite members is the integrity of the shear bond at the concrete/ steel interface.
Premature de-bonding of the concrete from the steel results in an overall loss of
structural strength of the composite member. Certain guidelines are to be
established to facilitate in the design of such systems.
In this research project the shear bond strength of composite members using lipped
channel members is investigated by interrogating the results from three independent
research experiments. Design formulas from first principles are developed to more
easily benchmark the behaviour of such members. Complex and simple equations
are developed and the results obtained are compared to similar shear bond stresses
obtained from literature. A reasonably acceptable correlation is achieved.
A comparative study was also carried out between the various experimental beams
regarding vertical shear, flexural strength and short-term deflections. The purpose
was to ascertain what effect early shear bond failure has on these structural
properties. The formulas used to benchmark the results were the well known
formulas used for the design and evaluation of reinforced concrete members. The
results were tabulated showing the difference between the calculated and
experimental results.
As a result of the investigation the following conclusions seem justified :
The simple equations as developed for horizontal shear failure give
acceptable results which are within the range as given by more complex
equations.
The composite beam has a certain amount of reserve shear strength even
after the initial onset of horizontal shear failure.
iv
The reinforcing ratio, the concrete strength and the slenderness ratio of the
composite beam all have an influence on the level of horizontal stress failure.
The composite beams tend to fail at levels higher than that predicted by the
homogeneous shear equations but lower than the predicted flexural
equations. The parameters which influence this are again the reinforcing ratio,
the concrete strength and the slenderness ratio.
Once a composite beam has experienced shear bond failure the deflection
integrity of the beam is completely compromised.
The above conclusions show the designer that caution must be exercised when
using lipped channel members in rib and block slab systems.
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Differential cross sections for charge transfer using screened Coulomb potentials in the eikonal approximationRogers, Steven Ray January 2011 (has links)
Typescript. / Digitized by Kansas Correctional Industries
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p, xn cross-sections in 232 Th.Suk, Ho Chun January 1971 (has links)
No description available.
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Absolute Electron Scattering Cross Sections for the CF2 RadicalHargreaves, Leigh Randall, harg0032@flinders.edu.au January 2008 (has links)
This thesis describes an experimental study of elastic electron scattering from
CF2 radicals, in the intermediate energy regime. Measurements of the absolute
differential, integral and momentum transfer cross sections for CF2 are presented.
These measurements were performed using a new crossed beam spectrometer,
incorporating a supersonic gas source and normalised using a new technique,
with both of these features being extensively developed as a major part of this
study.
The organisation of this thesis is as follows: A brief justification for this research
is presented in Chapter 1, together with a review of the spectroscopy and
electron collision cross sections which are currently available for the CF2 radical.
The crossed beamed apparatus and experimental techniques used to perform the
present cross section measurements are then described in detail in Chapter 2, and
the theory behind the new normalisation technique is subsequently presented in
Chapter 3.
Results from the present study are given in Chapter 4. Firstly, differential cross
sections measurements for stable molecules are presented, to validate the new
normalisation method. Characterisation data for the dissociation dynamics of
C2F4 into CF2 radicals are then presented and, finally, differential cross section
measurements for the CF2 radical are explored. Where possible, the measured
data for CF2 are compared against results from theoretical calculations and the
implications of the present results are discussed. The major findings of this
research are then summarised in Chapter 5, and directions for future research
using the present apparatus are also discussed here. Finally, some additional
findings from this research and calibration data for the current apparatus are
given in the appendices.
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Ionisation double du magnesium par impact électronique détermination des sections efficaces différentielles et des sections efficaces totales /El Ghazouani, Saïd. Dal Cappello, Claude January 1999 (has links) (PDF)
Thèse de doctorat : Physique : Metz : 1999. / Thèse soutenue sur ensemble de travaux. Bibliogr. p. 140.
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The design of broadband radar absorbing surfacesGo, Han Suk. January 1990 (has links) (PDF)
Thesis (M.S. in System Engineering in Electronic Warfare)--Naval Postgraduate School, September 1990. / Thesis Advisor(s): Atwater, H.A. Second Reader: Janaswamy, R. "September 1990." Description based on title screen as viewed on December 29, 2009. DTIC Identifier(s): Radar absorbing materials, radar cross sections, radiation absorbers, lossy dielectrics. Author(s) subject terms: Wave absorber, dielectric material. Includes bibliographical references (p. 55-56). Also available in print.
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