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Ditemukan 1533 dokumen yang sesuai dengan query
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Higham, Nicholas J., 1961-
"This second edition expands and updates the coverage of the first edition (1996) and includes numerous improvements to the original material. Two new chapters treat symmetric indefinite systems and skew-symmetric systems, and nonlinear systems and Newton's method. Twelve new sections include coverage of additional error bounds for Gaussian elimination, rank revealing LU factorizations, weighted and constrained least squares problems, and the fused multiply-add operation found on some modern computer architectures.
An expanded treatment of Gaussian elimination incorporates rook pivoting, along with a thorough discussion of the choice of pivoting strategy and the effects of scaling. The book's detailed descriptions of floating point arithmetic and of software issues reflect the fact that IEEE arithmetic is now ubiquitous.
Although not designed specifically as a textbook, this new edition is a suitable reference for an advanced course. It can also be used by instructors at all levels as a supplementary text from which to draw examples, historical perspective, statements of results, and exercises. With its thorough indexes and extensive, up-to-date bibliography, the book provides a mine of information in a readily accessible form."
Philadelphia : Society for Industrial and Applied Mathematics, 1996
e20442984
eBooks  Universitas Indonesia Library
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Bhaya, Amit
"Control Perspectives on Numerical Algorithms and Matrix Problems organizes the analysis and design of iterative numerical methods from a control perspective. The authors discuss a variety of applications, including iterative methods for linear and nonlinear systems of equations, neural networks for linear and quadratic programming problems, support vector machines, integration and shooting methods for ordinary differential equations, matrix preconditioning, matrix stability, and polynomial zero finding."
Philadelphia : Society for Industrial and Applied Mathematics, 2006
e20443034
eBooks  Universitas Indonesia Library
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Freeman, T.L.
New York: Prentice-Hall, 1992
515.502 FRE p
Buku Teks SO  Universitas Indonesia Library
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Bornemann, Folkmar
"This book takes readers on a thrilling tour of some of the most important and powerful areas of contemporary numerical mathematics. The tour is organized along the 10 problems of the SIAM 100-Digit Challenge, a contest posed by Nick Trefethen of Oxford University in the January/February 2002 issue of SIAM News. The complete story of the contest as well as a lively interview with Nick Trefethen are also included."
Philadelphia: Society for Industrial and Applied Mathematics, 2004
e20443314
eBooks  Universitas Indonesia Library
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Berlin: Springer-Verlag, 1991
R 512.5 NUM
Buku Referensi  Universitas Indonesia Library
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Sedgewick, Robert, 1946-
Reading Mass.: Addison-Wesley, 1988
519.4 SED a
Buku Teks  Universitas Indonesia Library
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Sedgewick, Robert, 1946-
Upper Saddle River, NJ: Addison-Wesley, 2011
005.1 SED a
Buku Teks SO  Universitas Indonesia Library
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Zhang, Jie
"This thesis presents an accurate and advanced numerical methodology to remedy difficulties such as direct numerical simulation of magnetohydrodynamic (MHD) flow in computational fluid dynamics (CFD), grid generation processes in tokamak fusion facilities, and the coupling between the surface tension force and Lorentz force in the metallurgical industry. In addition, on the basis of the numerical platform it establishes, it also investigates selected interesting topics, e.g. single bubble motion under the influence of either vertical or horizontal magnetic fields. Furthermore, it confirms the relation between the bubble’s path instability and wake instability, and observes the anisotropic (isotropic) effect of the vertical (horizontal) magnetic field on the vortex structures, which determines the dynamic behavior of the rising bubble.
The direct numerical simulation of magnetohydrodynamic (MHD) flows has proven difficult in the field of computational fluid dynamic (CFD) research, because it not only concerns the coupling of the equations governing the electromagnetic field and the fluid motion, but also calls for suitable numerical methods for computing the electromagnetic field. In tokamak fusion facilities, where the MHD effect is significant and the flow domain is complex, the process of grid generation requires considerable time and effort. Moreover, in the metallurgical industry, where multiphase MHD flows are usually encountered, the coupling between the surface tension force and Lorentz force adds to the difficulty of deriving direct numerical simulations."
Singapore: Springer Singapore, 2019
e20501136
eBooks  Universitas Indonesia Library
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Didik Sukoco
"Sumber energi terbarukan yang sangat menjanjikan adalah solar cell dan kincir angin karena portabilitas, fleksibilitas yang tinggi dan nilai investasi relatif rendah. Sejauh ini teknologi solar cell memiliki keunggulan karena membutuhkan perawatan sangat minim dan memiliki umur sekitar 20 tahun[27]. Effisiensi diwujudkan dengan kemampuan solar cell mengubah energi matahari menjadi energi listrik. Pada saat ini solar cell mudah didapat dengan kisaran harga US $3/Watt per satuan luas.
Pada kincir angin sumber energi mekanik dari putaran blade akan di konversi ke sumber energi listrik. Meskipun sederhana dalam konsep, tetapi desain turbin dalam perhitungan blade sangat komplek untuk menghasilkan energi yang optimal. Namun kelemahan dari kedua sumber energi terbarukan tersebut adalah tidak menentu ketersediaannya, sedangkan konsumen membutuhkan penyediaan energi yang stabil dengan sustainability 100%. Untuk itu agar sistem energi terbarukan lebih bermanfaat, sistem harus dilengkapi dengan kendali dan management energi listrik yang akan menstabilkan output energi listrik yang dihasilkan.
Diperlukan suatu bank baterai dalam kelangsungan sustainable suplai energi listrik yang dihasilkan. Dalam riset ini, telah merancang bangun suatu kendali energi dengan mengintegrasikan pemodelan matematik sistem baterai. Sistem kendali didukung oleh bank baterai, mikrokontroller dan rangkaian elektronik.
Selanjutnya unjuk kerja sistem dapat ditingkatkan dengan melakukan karakteristik energi yang tersimpan dalam baterai, sehingga energi baterai selalu dapat di monitor. Hal ini memungkinkan sistem selalu dapat mengendalikan energi listrik yang tersedia dalam sistem tersebut.

Renewable energy sources is a very promising that is solar cell and windmill because of it portability, flexibility and value of investment is relative low. Now solar cell technology have an advantage because it require for little maintenance and have lifetime of about 20 years [27]. Efficiency solar cell is realized with it ability to convert solar energy into electrical energy. At currently this solar cell is easy to get with range of price arround U.S. $ 3/Watt per unit area.
At the windmill source of mechanical energy from the blade rotation will be converted into electrical energy source. Although simple in concept, but the design of turbine blade is so complex calculation to generate the optimal energy. But the weakness of both renewable energy sources is uncertain availability, while the consumer requires a stable supply of energy with 100% sustainability. In order to a renewable energy system more useful, the system must be equipped with control and management of electrical energy that will stabilize the output of electrical energy that produced.
It needs a battery bank to keep the sustainable of electrical energy that produced. In this research, has been designing up a control energy by integrating the mathematical modeling of battery systems. Control system supported by battery bank, microcontrollers and electronic circuits.
Furthermore, system performance can be enhanced by the characteristics of the energy stored in batteries, hence the energy of battery always be monitored. It enable the system is always able to control the electrical energy that available in that system.
"
Depok: Fakultas Teknik Universitas Indonesia, 2012
T31086
UI - Tesis Open  Universitas Indonesia Library
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Casanova, Henri
Boca Raton: CRC Press, 2009
004.35 CAS p
Buku Teks  Universitas Indonesia Library
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