Sökning: "Early Mathematics"
Visar resultat 21 - 25 av 79 avhandlingar innehållade orden Early Mathematics.
21. On Numerical Tracer Advection in the Stratosphere and Assimilation of Data from Satellites
Sammanfattning : Since the early 1980's, large scale ozone depletion has been observed in the lower regions of the ozone layer over Antarctica when sunlight returns to the polar region in the early spring. The destruction of ozone is attributed to anthropogenic emissions of freon and halon compounds that have augmented the natural stratospheric concentrations of nonreactive Clx and Brx reservoir species with several hundred percent. LÄS MER
22. Algorithms and Complexity for Temporal and Spatial Formalisms
Sammanfattning : The problem of computing with temporal information was early recognised within the area of artificial intelligence, most notably the temporal interval algebra by Allen has become a widely used formalism for representing and computing with qualitative knowledge about relations between temporal intervals. However, the computational properties of the algebra and related-formalisms are known to be bad: most problems (like satisfiability) are NP-hard. LÄS MER
23. Iterative and Adaptive PDE Solvers for Shared Memory Architectures
Sammanfattning : Scientific computing is used frequently in an increasing number of disciplines to accelerate scientific discovery. Many such computing problems involve the numerical solution of partial differential equations (PDE). LÄS MER
24. A convex optimization approach to complexity constrained analytic interpolation with applications to ARMA estimation and robust control
Sammanfattning : Analytical interpolation theory has several applications in systems and control. In particular, solutions of low degree, or more generally of low complexity, are of special interest since they allow for synthesis of simpler systems. LÄS MER
25. Patient-Specific Finite Element Modeling of the Blood Flow in the Left Ventricle of a Human Heart
Sammanfattning : Heart disease is the leading cause of death in the world. Therefore, numerous studies are undertaken to identify indicators which can be applied to discover cardiac dysfunctions at an early age. LÄS MER