Search Constraints

Start Over
Filtering by: Creator Zaneveld, J. R. V. Remove constraint Creator: Zaneveld, J. R. V. Committee Member Warnes, William Remove constraint Committee Member: Warnes, William

Search Results

  • Magmatic processes beneath mid-ocean ridges : insights from mineral and glass chemistry in plagioclase ultraphyric basalts

    Creator:
    Lange, Amy E.
    Abstract:
    Prior to eruption at mid-ocean ridges, melts must travel through >6 km of crust from their origin in the mantle. The final composition of the melts is dependent on both the melting conditions and magmatic processes within the crust. While mid-ocean ridge basalt (MORB) glasses are commonly used to infer...
    Resource Type:
    Dissertation
    Full Text:
    Publications, v. 42, no. 1, p. 41– 70, doi: 10.1144/GSL.SP.1989.042.01.05. Nielsen, R., Crum, J., Bourgeois

  • An artificial neural network approach to laser-based direct part marking of data matrix symbols

    Creator:
    Jangsombatsiri, Witaya
    Abstract:
    Certain applications have recently appeared in industry where a traditional bar code printed on a label will not survive because the item to be tracked has to be exposed to harsh environments. Laser direct-part marking is a manufacturing process used to create permanent marks on a substrate that could help...
    Resource Type:
    Dissertation
    Full Text:
    neuron j in output layer L (1) = (') v (1+1) (1+1) (2.17)(n))8 (n)wkf (n) forneuronjinhiddenlayer 1 k

  • Effect of ambient environment on the fracture and fatigue properties of Zr-based bulk metallic glasses

    Creator:
    Philo, Sarah L.
    Abstract:
    The effect of ambient environment on the fatigue behavior of two Zr-Ti-Cu-Ni-Be bulk metallic glasses (BMGs) is examined in the present study. The first metallic glass, Zr₄₄Ti₁₁Ni₁₀Cu₁₀Be₂₅, was tested to establish the presence of an environmental effect in the fatigue growth curve measured in ambient air. Fatigue growth curves produced...
    Resource Type:
    Masters Thesis
    Full Text:
    b , I. Gallino b , R. Busch b , and J. J. Kruzic a a Materials Science, School of

  • Low-power dynamic CMOS circuits in high-performance memory arrays

    Creator:
    Patwary, Md. Ataur R.
    Abstract:
    Dynamic CMOS circuits are commonly used in high-performance memory arrays to implement wide-NOR logic functions for their read and search operations. This is because dynamic circuits have significantly higher speed and lower area compared to static circuits for performing similar operations. Register File (RF) arrays are located at the top...
    Resource Type:
    Dissertation
    Full Text:
    0.05 0.10 0.15 0.20 0.25 0.30 Input noise (mV) R e la ti v e K e e p e r S iz e 8 PDN/LBL

  • Students' generalisation of function from single- to multivariable settings

    Creator:
    Dorko, Allison J.
    Abstract:
    Generalisation is a key component of mathematical activity. Mathematicians often seek general formulae or wonder if a rule that holds in a particular dimension also holds in dimension n. However, generalisation is not limited to professional mathematicians; kindergarteners engage in generalisation when they seek patterns and algebra is sometimes described...
    Resource Type:
    Dissertation
    Full Text:
    ABSTRACT OF THE DISSERTATION OF Allison J. Dorko for the degree of Doctor of Philosophy in Mathematics

  • A photoactivable microfluidic device for heavy metal ion extraction

    Creator:
    Nammoonnoy, Jintana
    Abstract:
    The development of microfluidic devices for heavy metal extraction is presented in this dissertation. Various research areas, covering subjects from photochromic compound syntheses to microchip fabrication techniques are explored to develop microfluidic devices capable of extracting heavy metal ions from drinking water. Through integration of the beneficial characteristics of both...
    Resource Type:
    Dissertation
    Full Text:
    all published and submitted work contained herein. My co-advisor Dr. Jeffrey R. Walker, edited and

  • Zinc tin oxide thin-film transistor circuits

    Creator:
    Heineck, Daniel Philip
    Abstract:
    The primary objective of this thesis is to develop a process for fabricating integrated circuits based on thin-film transistors (TFTs) using zinc tin oxide (ZTO) as the channel layer. ZTO, in contrast to indium- or gallium-based amorphous oxide semiconductors (AOS), is perceived to be a more commercially viable AOS choice...
    Resource Type:
    Masters Thesis
    Full Text:
    voltages approximately 0 to 1.5 V and subthreshold swings below 0.5 V/dec when annealed in air at 400 ◦C

  • Processing effects on the ductility of chromium-vanadium alloys

    Creator:
    Murdock, Hailey M.
    Abstract:
    The next generation of high temperature structural alloys must exhibit exceptional resistance to fracture, creep, oxidation, and fatigue at high temperatures. Chromium is being considered due to its high melting point (>1800°C), relatively low density (~7.2 g/cc), high temperature strength, and oxidation resistance. Limiting the use of chromium is its...
    Resource Type:
    Masters Thesis
    Full Text:
    chromium. A series of first principles calculations recently revealed elements (Ti, Zr, Hf, Nb, V) which

  • Non-Stoichiometry in Bismuth Perovskite Solid Solutions

    Creator:
    Prasertpalichat, Sasiporn
    Abstract:
    The role of A-site non-stoichiometry was investigated in lead-free piezoelectric ceramics based on compositions in the 1-x(Bi₀.₅Na₀.₅TiO₃)-xBaTiO₃ system near the morphotropic phase boundary where x = 0.055, 0.06 and 0.07. The samples were prepared by a conventional solid state mixed oxide route with the A- site stoichiometry modified to incorporate...
    Resource Type:
    Dissertation
    Full Text:
    -xBT (x = 5.5, 6 and 7 mol% BT)………………………..…………………………………….…………100 Table 5.4 Dielectric (εr, tan δ

  • Bioactive glass filled resin composites : mechanical properties and resistance to secondary tooth decay

    Creator:
    Khvostenko, Dmytro
    Abstract:
    Dental resin composites are widely used in modern dentistry due to their aesthetic appearance. However, resin based restorations have inferior mechanical properties (fracture is the second reason for restorations replacement) in comparison to alloy based composites and their antimicrobial properties still remain poor, leading to secondary tooth decay development on...
    Resource Type:
    Dissertation
    Full Text:
    Tooth Decay. Abstract approved: ______________________________________________________ Jamie J