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Filtering by: Creator Eng, Kayleen S. Remove constraint Creator: Eng, Kayleen S. Degree Field Physics Remove constraint Degree Field: Physics Degree Name Bachelor of Science (B.S.) Remove constraint Degree Name: Bachelor of Science (B.S.)

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  • Temperature Dependence of Cu₃₋xSb₁₋[subscript y]M[subscript y]S₄ (M=Sn,Ge) Resistivity and Thermopower

    Creator:
    Mutch, Joshua
    Abstract:
    An experimental apparatus is modified to allow measurements of the Seebeck coefficient and resistivity to be taken simultaneously. This apparatus is designed for bulk and thin film samples between temperatures of 10 K and 300 K. The apparatus is constructed such that these simultaneous measurements do not interfere with each...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    Equation 1 above, S is the Seebeck coefficient, σ the electrical conductivity, T the absolute temperature

  • Neutron Capture Cross Sections of Cadmium Isotopes

    Creator:
    Gicking, Allison
    Abstract:
    The neutron capture cross sections of ¹⁰⁶Cd, ¹⁰⁸Cd, ¹¹⁰Cd, ¹¹²Cd, ¹¹⁴Cd and ¹¹⁶Cd were determined in the present project. Four different OSU TRIGA reactor facilities were used to produce redundancy in the results and to measure the thermal cross section and resonance integral separately. When the present values were compared...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    a time when high-resolution detectors were not available, which is anytime before the 1960’s. Also

  • Neutron Capture Cross Sections of Selenium Isotopes

    Creator:
    Dearmon, Howard D.
    Abstract:
    The thermal cross sections and resonance integrals for neutron capture by ⁷⁴,⁷⁸,⁸⁰,⁸²Se were measured using the same procedure and equipment for all of the isotopes. Uncertainty and absence of accurate previous values for several isotopes introduces a need of measuring these parameters using similar techniques. This was done using OSU’s...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    activation analysis. Journal of Radioanalytical and Nuclear Chemistry (2012) [2] S. F. Mughabghab

  • First principles study of finite temperature phase stability in (Cu,Ag,Au)In₂ and Al₂Cu alloys

    Creator:
    Holmes, Aleczander S.
    Abstract:
    The common choice in computational approximations, from 0 K to room temperature, of solid materials is to assume the structure remains unchanged at low temperatures. Often such an approximation is a very reasonable assumption. However, this approximation is not absolute and can break down even for relatively simple materials such...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    energy is necessary ∆G(P, T ) = ∆Ecoh + P∆V − T∆S As mentioned earlier the common and reasonable

  • The contact value approximation to the pair distribution function for an inhomogeneous hard sphere fluid

    Creator:
    Lurie-Gregg, Paho
    Abstract:
    We construct the contact value approximation (CVA) for the pair distribution function, g(²)(r₁, r₂), for an inhomogeneous hard sphere fluid. The CVA is an average of two radial distribution functions, which each take as input the distance between the particles, |r₂ −r₁|, and the average value of the radial distribution...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    approximation (CVA-S) to the pair distribution function. We compare the CVA and CVA-S to Monte Carlo

  • Solution method and error evolution of student responses to chain rule problems within a thermodynamics course

    Creator:
    Founds, Ian, W and Founds, Ian W.
    Abstract:
    Chain rules are critical to the process of solving many thermodynamics-related partial derivatives. This study evaluates the solution method and error evolution of students’ responses to a pair of chain rule problems in an upper-level undergraduate thermodynamics course. Students’ responses were categorized by solution method. Students’ solution methods included implicit...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    variable(s) constant while evaluating partial derivatives. Students also had difficulties identifying

  • Organic Semiconductors : Incorporating Xylindein into (Opto)Electronic Devices

    Creator:
    Rath, Jeremy J.
    Abstract:
    This research investigates the electronic properties of a fungi-derived pigment, xylindein as a novel sustainable material for organic electronics. Xylindein molecules were characterized in solution and in film. Absorption spectra and (photo)luminescence spectra were taken at various excitation wavelengths. Xylindein’s molecular properties were computed with the Gaussian 09 software suite....
    Resource Type:
    Undergraduate Thesis
    Full Text:
    comparison. A lower limit for the charge carrier mobility was estimated to be 0.5 cm 2 V s . Xylindein

  • Simulating Synchrotron Optical Flashes in the Reverse Shock of a Gamma Ray Burst

    Creator:
    Bice, Connor
    Abstract:
    We construct a Monte Carlo simulation in Python to calculate optical flashes at 5x10¹⁴ Hz peaking at 6x10³¹ erg s⁻¹Hz⁻¹St⁻¹ due to synchrotron radiation from the reverse shock of a gamma-ray burst’s jet. While analytical solutions to this problem exist, they rely on sweeping simplifications of what is necessarily a...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    5x10​14 Hz                              peaking at 6x10​31 erg s​­1​Hz​­1​St​­1 due to synchrotron

  • Single-Molecule Analysis of a Novel Kinesin MotorProtein

    Creator:
    Meinke, Jeremy
    Abstract:
    Kinesins are intracellular motor proteins that transform chemical energy into mechanical energy through ATP hydrolysis to move along microtubules. Kinesin roles can vary among transportation, regulation, and spindle alignment within most cells. Many kinesin have been found to move towards the plus end of microtubules at a steady velocity. For...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    high velocity of 597±214 nm/s (mean±S.D, n=124). BimC then joins the few other kinesin found so far to

  • Deriving relationships between number of observed short gamma ray bursts and viewing angle

    Creator:
    Micallef, John T.
    Abstract:
    Gamma ray bursts are some of the brightest events in the entire observable universe. Since the late 1960’s, thousands of gamma ray bursts have been observed and they have been researched extensively. However, there are still many mysteries which remain unsolved. One such mystery is whether or not the viewing...
    Resource Type:
    Undergraduate Thesis
    Full Text:
                                  the late 1960’s, thousands of gamma ray bursts have been observed and they have been researched