Hasil Pencarian  ::  Simpan CSV :: Kembali

Abstrak :
Wavelets continue to be powerful mathematical tools that can be used to solve problems for which the Fourier (spectral) method does not perform well or cannot handle. This book is for engineers, applied mathematicians, and other scientists who want to learn about using wavelets to analyze, process, and synthesize images and signals. Applications are described in detail and there are step-by-step instructions about how to construct and apply wavelets. The only mathematically rigorous monograph written by a mathematician specifically for nonspecialists, it describes the basic concepts of these mathematical techniques, outlines the procedures for using them, compares the performance of various approaches, and provides information for problem solving, putting the reader at the forefront of current research.

Abstrak :
Motor Induksi telah mendominasi bidang konversi energi elektromekanik dengan penggunaan sekitar 80% dari berbagai jenis motor listrik yang digunakan. Salah satu metode yang digunakan untuk menganalisa kerusakan pada motor adalah current signature analysis. Sinyal arus motor dideteksi dengan current tranducer, dilewatkan pada signal conditioning kemudian akuisisi data dan dianalisa oleh komputer dengan Fast Fourier Transform (FFT). Hasil analisis ini (signature) memperlihatkan kondisi dari motor, apakah normal atau terjadi kerusakan. ......Induction motor has been dominated electrical energy conversipon field with about 80% used rather than other electric motor. Some research in fault detection has been done. One of the method is current signature analysis. Electric motor current signal detected by a current transducer, pass in a signal conditioning, acquired and analyse with signal analysis software with Fast Fourier Transform (FFT). Analysis result (signature) show motor condition normal or fault happened.

Abstrak :
This classic text has been used in over 20 countries by advanced undergraduate and beginning graduate students in biophysics, physiology, medical physics, neuroscience, and biomedical engineering. It bridges the gap between an introductory physics course and the application of physics to the life and biomedical sciences. Extensively revised and updated, the fifth edition incorporates new developments at the interface between physics and biomedicine. New coverage includes cyclotrons, photodynamic therapy, color vision, x-ray crystallography, the electron microscope, cochlear implants, deep brain stimulation, nanomedicine, and other topics highlighted in the National Research Council report BIO2010. As with the previous edition, the first half of the text is primarily biological physics, emphasizing the use of ideas from physics to understand biology and physiology, and the second half is primarily medical physics, describing the use of physics in medicine for diagnosis (mainly imaging) and therapy. Among the many topics carried forward are thorough treatments of forces in the skeletal system, fluid flow, the logistic equation, scaling, equilibrium in statistical mechanics, the chemical potential and free energy, transport, membranes and osmosis, magnetic and electrical signals from nerves and the heart, membranes and gated channels in membranes, biological magnetic fields, linear and nonlinear feedback systems, including biological clocks and chaotic behavior, biological signal analysis, hearing and medical ultrasound, atoms and light, optical coherence tomography, radiometry and photometry, the interaction of photons and charged particles in tissue, radiological physics and the use of x-rays in diagnosis and therapy, nuclear medicine, and magnetic resonance imaging. Discussion of theory is closely linked to experiment. Prior courses in physics and in calculus are assumed.

Abstrak :
This book provides readers with a timely snapshot of the potential offered by and challenges posed by signal processing methods in the field of machine diagnostics and condition monitoring. It gathers contributions to the first Workshop on Signal Processing Applied to Rotating Machinery Diagnostics, held in Setif, Algeria, on April 9-10, 2017, and organized by the Applied Precision Mechanics Laboratory (LMPA) at the Institute of Precision Mechanics, University of Setif, Algeria and the Laboratory of Mechanics, Modeling and Manufacturing (LA2MP) at the National School of Engineers of Sfax. The respective chapters highlight research conducted by the two laboratories on the following main topics: noise and vibration in machines; condition monitoring in non-stationary operations; vibro-acoustic diagnosis of machinery; signal processing and pattern recognition methods; monitoring and diagnostic systems; and dynamic modeling and fault detection.