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"Flow control and optimization has been an important part of experimental flow science throughout the last century. As research in computational fluid dynamics (CFD) matured, CFD codes were routinely used for the simulation of fluid flows. Subsequently, mathematicians and engineers began examining the use of CFD algorithms and codes for optimization and control problems for fluid flows. The marriage of mature CFD methodologies with state-of-the-art optimization methods has become the center of activity in computational flow control and optimization.Perspectives in Flow Control and Optimization presents flow control and optimization as a subdiscipline of computational mathematics and computational engineering. It introduces the development and analysis of several approaches for solving flow control and optimization problems through the use of modern CFD and optimization methods. The author discusses many of the issues that arise in the practical implementation of algorithms for flow control and optimization, such as choices to be made and difficulties to overcome. He provides the reader with a clear idea of what types of flow control and optimization problems can be solved, how to develop effective algorithms for solving such problems, and potential problems to be aware of when implementing the algorithms.This book is written for both those new to the field of control and optimization as well as experienced practitioners, including engineers, applied mathematicians, and scientists interested in computational methods for flow control and optimization. Both those interested in developing new algorithms and those interested in the application of existing algorithms should find useful information in this book."

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Nyamuk adalah vektor utama dari penyakit yang mengancam jiwa manusia seperti demam berdarah, chikungunya, demam kuning dan Zika. Dalam beberapa tahun terakhir terdapat metode pengendalian penyakit yang disebabkan vektor nyamuk selain penyemprotan pestisida, telah dikembangkan metode baru dengan melepaskan nyamuk pembawa bakteri Wolbachia ke lingkungan untuk menginfeksi populasi nyamuk liar sehingga dapat memutus penularan penyakit. Alternaltif lain yaitu dengan menggunakan biolarvasida untuk membunuh nyamuk. Biolarvasida berasal dari bahan - bahan alami yaitu tumbuhan (nabati) atau dengan pemanfaatan bakteri. Pada skripsi ini, dikonstruksi model pertumbuhan nyamuk dengan intervensi Wolbachia dan biolarvasida. Populasi nyamuk dibagi menjadi dua, yaitu populasi nyamuk yang terinfeksi Wolbachia dan populasi nyamuk sehat. Kajian analitik terkait proses non-dimensionalisasi, eksistensi dan kestabilan titik keseimbangan dilakukan terhadap model. Berdasarkan kajian analitis yang dilakukan, diperoleh empat buah titik keseimbangan yang dimiliki oleh model ini. Beberapa simulasi numerik dilakukan untuk mendukung hasil kajian analitik dan memberikan interpretasi secara visual, salah satunya yaitu simulasi autonomous untuk rasio antara laju kematian nyamuk terinfeksi dengan laju kematian nyamuk sehat (delta>1) menginterpretasikan mampu menurunkan jumlah kedua populasi nyamuk dan juga biolarvasida sehingga dapat berpengaruh besar dalam meminimalkan penyebaran penyakit.

 

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Mosquitoes are primary vectors of life-threatening diseases such as dengue fever, chikungunya, yellow fever and Zika. In recent years there are methods of controlling diseases caused by mosquito vectors in addition to spraying pesticides, a new method has been developed by releasing mosquitoes carrying bacteria Wolbachia into the environment to infect wild mosquito populations so as to cut off transmission of disease. Another alternative is to use biolarvicide to kill mosquitoes. Biolarvicide comes from natural ingredients, namely plants (vegetable) or by the use of bacteria. In this thesis, a mosquito growth model is constructed with Wolbachia and biolarvicide intervention. Mosquito population is divided into two, namely infected mosquito population Wolbachia and healthy mosquito population. Analytical studies related to the non-dimensionalization process, the existence and stability of the equilibrium points were carried out on the model. Based on an analytical study that has been carried out, obtained four equilibrium points shown by this model. Some numerical simulations are given to support the results of analytic studies and provide visual interpretation. one of which is autonomous simulation for the ratio between the mortality rate of infected mosquitoes and the mortality rate for healthy mosquitoes (delta>1) interpreted as being able to reduce the number of populations of both mosquitoes and biolarvicides so that it can have a major effect on minimize the spread of disease.

 

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"Extended finite element method provides an introduction to the extended finite element method (XFEM), a novel computational method which has been proposed to solve complex crack propagation problems. The book helps readers understand the method and make effective use of the XFEM code and software plugins now available to model and simulate these complex problems.The book explores the governing equation behind XFEM, including level set method and enrichment shape function. The authors outline a new XFEM algorithm based on the continuum-based shell and consider numerous practical problems, including planar discontinuities, arbitrary crack propagation in shells and dynamic response in 3D composite materials."

"The Lanczos Method: Evolution and Application is divided into two distinct parts. The first part reviews the evolution of one of the most widely used numerical techniques in the industry. The development of the method, as it became more robust, is demonstrated through easy-to-understand algorithms. The second part contains industrial applications drawn from the author experience. These chapters provide a unique interaction between the numerical algorithms and their engineering applications."

"This easy-to-follow textbook introduces the mathematical language, knowledge and problem-solving skills that undergraduates need to study computing. The language is in part qualitative, with concepts such as set, relation, function and recursion/induction, but it is also partly quantitative, with principles of counting and finite probability. Entwined with both are the fundamental notions of logic and their use for representation and proof. Features : teaches finite math as a language for thinking, as much as knowledge and skills to be acquired, uses an intuitive approach with a focus on examples for all general concepts, brings out the interplay between the qualitative and the quantitative in all areas covered, particularly in the treatment of recursion and induction, balances carefully the abstract and concrete, principles and proofs, specific facts and general perspectives, includes highlight boxes that raise common queries and clear confusions, and provides numerous exercises, with selected solutions."