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This paper presents a comprehensive review of Cyberinfrastructure (CI), an emerging collaborative research environment, including its representative applications in four science communities around the world. An in-depth analysis is also conducted to reveal the key functions and desired features that can be expected from modern CI systems.
As the first kind of Fredholm integral equation, the Maxwell's electric field integral equation (EFIE) possesses a two-branch spectrum- one branch approaches infinity while the other approaches zero. Under fine discretization by method of moment (MoM) the convergence rate is a main indicator of reliability for simulation. This paper quantitatively investigates the convergence rate under integration...
Due to the low couple efficiency of daylighting system. Therefore we designed a sun collector which is based on Snell's law and it consists by two pieces of mirrors and a prism made from PMMA. And we use 5 sunlight collectors to compose a collecting system. Regarding to the collecting system, the transmission efficiency is 54.15% which the transmission distance is 85.7m. After we combine collection...
An energy potential function is constructed for a Lorenz-like piecewise continuous dissipative system. Using this nonincreasing potential function, the system's dynamics is decomposed into a gradient component, accounting for energy dissipation; and a rotation component, facilitating energy conserved motion. Each part has an individual role of determining the strangeness or chaoticness of the attractor.
Nonnegative matrix factorization (NMF) is a powerful matrix decomposition technique that approximates a nonnegative matrix by the product of two low-rank nonnegative matrix factors. It has been widely applied to signal processing, computer vision, and data mining. Traditional NMF solvers include the multiplicative update rule (MUR), the projected gradient method (PG), the projected nonnegative least...
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