Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 504 for “"Cascades"”.
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Analytic Solutions for Flows Through Cascades
… considers three separate scenarios where the cascades consist of (i) blades with realistic geometry, (ii) blades with porosity gradients, and (iii) multiple blades per period window. In each case, we begin by solving the steady potential flow and proceed by investigating the effects of …
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Design of cascades in compressible flows
Thesis: Sc. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1950
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The dynamics of enzymatic switch cascades
We examine the dynamics of the mitogen-activated protein kinase (MAPK) multi-step enzymatic switching cascade, a highly conserved architecture utilised in cellular signal transduction. In treating the equations of motion, we replace the usual deterministic differential equation formalism with …
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perspective: design of Cascades visitors' center
Consider the construction of a perspective drawing. The perspective is made by drawing lines between a point of origin and several focal points. A series of lines connect the focal points to one another. The culmination of lines drawn from origin to focal point and focal point to focal point …
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Flow losses in supersonic compressor cascades
… developed from the study of two-dimensional cascades. The physical mechanisms that affect the flow in supersonic compressor cascades have been reviewed, including the changes in shock geometry that will occur with back pressure for both started and unstarted operation. Compressible fluid …
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Aerodynamic inverse design of transonic turbomachinery cascades
… inverse design method for turbomachinery cascades is presented and is implemented in a finite volume method. In this design method, the mass-averaged swirl schedule and the blade thickness distribution are prescribed. The design method then provides the blade shape that would accomplish …
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Scale -Invariant Cascades in Turbulence and Evolution
Finally, in the problem of social organization, I show that different types of control hierarchies - leaders or communal decision making - can emerge depending on the relationship between the environment in which members of the social group act and the development and exchange of information.
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Endo-selective epoxide-opening cascades in water
… overview of the puzzle that is their biogenesis. Cascades of endo-selective epoxide opening inspired by the biosynthetic proposal and promoted by simple neutral water can provide efficient access to these compounds. Chapter II. Water-Promoted Epoxide Opening Accommodates Methyl Substitution. ... …
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The Performance of Aerofoil Cascades Using Circulation Control
The performance of a cascade of two-dimensional, bluff aerofoils employing circulation control by a tangential blowing jet is investigated. Expressions for the lift and drag of such a cascade are derived to eliminate the direct effect of the blowing jet on the measured performance. The cascade …
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Angular Correlation of Low Intensity Gamma-Gamma Cascades
Made available in DSpace on 2015-05-12T17:11:43Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0004475.PDF: 3370684 bytes, checksum: 83eb45c2e6e4346758d892488337b99e (MD5) Previous issue date: 1952
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Directing group-free endo-selective epoxide-opening cascades
… complex molecules. In practice, however, such cascades are strongly disfavored, and non-natural directing groups must be covalently attached to each epoxide to overcome this inherent bias. We report herein a general method for directing group-free cascades that also supports the postulated …
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Suppressions and cascades : insights from gauge/gravity dualities
At present, there are no non-perturbative analytic methods available for investigating gauge theories at large couplings. Consequently, it is desirable to explore more avenues to gain qualitative and quantitative insights. The gauge/gravity (AdS/CFT) correspondences provides a unique opportunity to …
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Role of phosphatases in controlling arabidopsis mapk signalling cascades
… key component of the control of MAPK signalling cascades, and in mammals, members of the MAPK phosphatase (MKP) sub-class of dual-specificity tyrosine phosphatases have been recognized as key players for inactivating MAPKs. Five MKP homologues are found in Arabidopsis thaliana, but only limited …
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Driving tissue morphogenetic cascades using tunable nanolayered surface coatings
Harnessing the synergy between materials at the nanoscale can be a valuable tool in understanding and probing cellular phenomena and in driving specific processes that lead to tissue and organ regeneration and repair. Biomedical implants attempt to materially replace damaged tissues, restore …
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Effects of power-law entrainment on bubble fragmentation cascades
This thesis considers the evolution of the bulk bubble-size distribution 𝑁(𝑎,𝑡) of large bubbles (Weber number 𝑊𝑒 >> 1) under free-surface entrainment described generally by an entrainment size distribution 𝐼(𝑎) with power-law slope 𝛾 and large-radius cutoff 𝑎ₘₐₓ. The focus is the interaction …
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Analysis and design of transonic cascades with splitter vanes
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1991.
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Arc magmatism at different crustal levels, North Cascades, WA
… range of crustal depths in the Cretaceous North Cascades magmatic arc. Integration of geological mapping and high-precision U-Pb TIMS geochronology allows me to demonstrate variable styles of intrusion in different complexes: Assembly of the Black Peak intrusive complex occurred via a series of …
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Fluid flow and heat transfer in transonic turbine cascades
… steady flow and heat transfer in turbine rotor cascades. Successful calculations were performed on two different rotor profiles using a one-equation q-L transitional turbulence model. A series of programs was developed for the post-processing of the output from the flow solver. The calculations …
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A study of supersonic flow past vibrating shells and cascades
… cylindrical shells and oscillating flat-plate cascades is analyzed using linearized characteristics methods. Pressure distributions and generalized aerodynamic forces are computed for arbitrary radius to length ratios, axial and circumferential wave numbers, Mach numbers, and reduced …
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