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"Suatu perusahaan seringkali memerlukan tambahan modal untuk mengembangkan bisnisnya. Oleh karena itu, perusahaan perlu meminjam kepada bank. Besar pinjaman yang diberikan sangat bergantung pada karakteristik perusahaan. Penelitian ini bertujuan untuk menentukan faktor-faktor yang signifikan mempengaruhi besar pinjaman dan karakteristik suatu perusahaan berdasarkan faktor-faktor tersebut. Karakteristik suatu perusahaan dilihat dari kategori setiap faktor yang dimiliki oleh perusahaan tersebut. Metode yang digunakan dalam penelitian ini adalah Multiple Linear Regression dan Multiple Correspondence Analysis. Berdasarkan data, didapat bahwa faktor-faktor yang signifikan mempengaruhi besar pinjaman adalah profit, CEV total dan CCR. Karakteristik perusahaan yang didapat berdasarkan faktor-faktor tersebut yaitu perusahaan dengan besar pinjaman kecil, memiliki total jaminan bernilai kurang dari Rp.1 milyar dan kemungkinan gagal dalam memenuhi kewajiban kepada bank pada tingkat batas peminjaman (marginal risk). Perusahaan dengan besar pinjaman sedang, memiliki tingkat keuntungan 6,5% - 11,5%, total jaminan bernilai Rp.1 milyar - Rp.4 milyar dan kemungkinan gagal dalam memenuhi kewajiban kepada bank pada tingkat yang diperbolehkan (allowable risk). Dan perusahaan dengan besar pinjaman besar, memiliki tingkat keuntungan lebih dari 11,5%, total jaminan bernilai lebih dari Rp. 4 milyar dan iv"

"The book assumes no prior background in geometric control theory. The book also adopts a tutorial style by way of examples that illustrate the geometric and abstract algebra concepts used in linear geometric control. In addition, the matrix calculations required for the studied control synthesis problems of linear multivariable control are illustrated via a set of running design examples. As such, some of the design examples are of higher dimension than one may typically see in a text."

"Control of linear parameter varying systems compiles state-of-the-art contributions on novel analytical and computational methods for addressing system identification, model reduction, performance analysis and feedback control design and addresses address theoretical developments, novel computational approaches and illustrative applications to various fields. Part I discusses modeling and system identification of linear parameter varying systems, part II covers the importance of analysis and control design when working with linear parameter varying systems (LPVS) , Finally, part III presents an applications based approach to linear parameter varying systems, including modeling of a turbocharged diesel engines, Multivariable control of wind turbines, modeling and control of aircraft engines, control of an autonomous underwater vehicles and analysis and synthesis of re-entry vehicles."

"In this book, which focuses on the use of iterative methods for solving large sparse systems of linear equations, templates are introduced to meet the needs of both the traditional user and the high-performance specialist. Templates, a description of a general algorithm rather than the executable object or source code more commonly found in a conventional software library, offer whatever degree of customization the user may desire. Templates offer three distinct advantages: they are general and reusable; they are not language specific; and they exploit the expertise of both the numerical analyst, who creates a template reflecting in-depth knowledge of a specific numerical technique, and the computational scientist, who then provides "value-added" capability to the general template description, customizing it for specific needs. For each template that is presented, the authors provide: a mathematical description of the flow of algorithm; discussion of convergence and stopping criteria to use in the iteration; suggestions for applying a method to special matrix types; advice for tuning the template; tips on parallel implementations; and hints as to when and why a method is useful."

"Exact and Approximate Modeling of Linear Systems: A Behavioral Approach elegantly introduces the behavioral approach to mathematical modeling, an approach that requires models to be viewed as sets of possible outcomes rather than to be a priori bound to particular representations. The authors discuss exact and approximate fitting of data by linear, bilinear, and quadratic static models and linear dynamic models, a formulation that enables readers to select the most suitable representation for a particular purpose. This book presents exact subspace-type and approximate optimization-based identification methods, as well as representation-free problem formulations, an overview of solution approaches, and software implementation. Readers will find an exposition of a wide variety of modeling problems starting from observed data. The presented theory leads to algorithms that are implemented in C language and in MATLAB."

"Aluminium merupakan salah satu komoditas utama di berbagai industri karena sifatnya yang tahan karat. Namun, lapisan oksida Al2O3 yang timbul pada permukaan aluminium menjadikan aluminium rentan terkena deformasi saat proses pengelasan. Friction stir welding (FSW) merupakan salah satu metode pengelasan yang mampu menjadikan proses pengelasan aluminium menjadi lebih kuat karena mikrostruktur hasil proses pengelasannya yang lebih halus, sehingga laju korosi produk pengelasan juga dapat menurun. Karakteristik laju korosi sampel FSW di observasi pada lingkungan netral (3.5 wt% NaCl), asam (0.5 M H2SO4), dan basa (0.5 M NaOH) dengan metode linear sweep voltammetry (LSV) untuk menganalisis pengaruh proses FSW terhadap sifat korosi pada lingkungan yang berbeda, karakterisasi XRD digunakan untuk menganalisis parameter kristal sampel Base metal (BM) dan FSW. Hasil pengujian korosi menunjukkan peningkatan laju korosi pada lingkungan netral, asam, dan basa secara berturut-turut sebesar -20,75%; 10,54%; dan 4,83%. Kemudian berdasarkan hasil difraksi sinar X menggunakan metode W-H plot diketahui terjadi proses pembesaran parameter ukuran rata-rata kristal dari 437,394 Å menjadi 650,957 Å pada sampel FSW. Tingginya nilai microstrain dan pergeseran dan pelebaran puncak difraksi menjadi indikasi terdapat tegangan sisa pada sampel FSW hasil dari proses pengelasan yang mengurangi sifat ketahanan korosi sampel FSW

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Aluminum is one of the main commodities in various industries because of its corrosion resistance. However, the Al2O3 oxide layers that appears on the aluminum surface makes aluminum susceptible to deformation during the welding process. Friction stir welding (FSW) is a welding method that can make the product of welded aluminum stronger because the microstructure of the welding products is smoother, so that the corrosion rate of welding products can also decrease. The characteristics of the corrosion rate of FSW samples were observed in neutral (3.5 wt% NaCl), acidic (0.5 M H2SO4), and alkaline (0.5 M NaOH) environments using the linear sweep voltammetry (LSV) method to analyze the effect of the FSW process on corrosion properties in the different environment, XRD characterization was used to analyze the crystal parameters of the Base metal (BM) and FSW samples. The results of the corrosion test showed an increase in the corrosion rate in neutral, acidic, and alkaline environments, respectively, by 10.54%; -20.75%; and 4.83%. Then based on the results of X-ray diffraction using the W-H plot method, it is known that there is a process of enlargement of the average crystal size parameter from 437,394 to 650,957 in the FSW sample. The high value of microstrain and the shift and broadening of the diffraction peaks are an indication that there is residual stress in the FSW sample resulting from the welding process which reduces the corrosion resistance properties of the FSW sample.

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