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Ditemukan 9669 dokumen yang sesuai dengan query
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Ulaby, Fawwaz Tayssir, 1943-
"This text bridges the gap between circuits and new electromagnetics material. This book begins coverage with transmission lines, leading students from familiar concepts into more advanced topics and applications. A user-friendly approach, full-color figures and images, and a set of interactive simulations will help readers understand the concepts presente"
Boston: Pearson, 2015
537 ULA f
Buku Teks SO  Universitas Indonesia Library
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Ulaby, Fawwaz Tayssir, 1943-
Upper Saddle River, N.J: Pearson Education, 2004
621ULAF001
Multimedia  Universitas Indonesia Library
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Ulaby, Fawwaz Tayssir, 1943-
Upper Saddle River, NJ: Pearson, 2004
537 ULA f
Buku Teks SO  Universitas Indonesia Library
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Wakid Ali Muntoha
"Mekanisme serapan gelombang elektromagnetik oleh material penyerap adalah mekanisme resonansi yaitu dalam hal ini bila terdapat kesamaan antara nilai impedansi gelombang elektromagnetik diudara dengan nilai impedansi material, maka penyerapan energi oleh material berjalan maksimal. Metode Nicolson Rose Wear merupakan metode yang cukup efektif dalam menghitung nilai pernyerapan gelombang tersebut pada suatu material penyerap gelombang elektromagnetik. Metode ini dihitung menggunakan instrumen bantuan yaitu Vector Network Analyser. Instrumen ini sangat efektif untuk menghitung nilai penyerapan gelombang elektromagnetik. Namun, instrumen Vector Network Analyser yang kebanyakan ada di lembaga-lembaga penelitian tidak bisa menghitung nilai magnetik dan nilai eletrik dari material penyerap gelombang elektromagnetik. untuk meghitung nilai permeabilitas dan nilai permitivitas tersebut dibuatlah alat bantu pehitungan menggunakan programming dan diaplikasikan dalam suatu server sehingga memudahkan siapapun untuk mengakses dan menggunakannya dalam penelitian yang dilakukan.

The mechanism for absorption of electromagnetic waves by absorbing materials is a resonance mechanism, in this case if there is a similarity between the value of the impedance of electromagnetic waves in the air and the impedance of the material, the absorption of energy by the material is maximized. Nicolson Rose Wear method is a method that is quite effective in calculating the value of the absorption of these waves on an electromagnetic wave absorbing material. This method is calculated using an auxiliary instrument, namely the Vector Network Analyzer. This instrument is very effective for calculating the absorption value of electromagnetic waves. However, the Vector Network Analyzer instrument which is mostly available in research institutions cannot calculate the magnetic value and the electrical value of the electromagnetic wave absorbing material. To calculate the permeability and permitivity values, a calculation tool was made using programming and applied to a server, making it easier for anyone to access and use it in the research being conducted. "
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2021
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UI - Skripsi Membership  Universitas Indonesia Library
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Asai, Shigeo
"This book is both a course book and a monograph. The first chapter briefly introduces the history, background and technology of EPM. In the second chapter, the concept of transport phenomena is concisely introduced and in the third chapter the essential part of magnetohydrodynamics is transcribed and readers are shown that the concept of transport phenomena does not only apply to heat, mass and momentum, but also magnetic field. The fourth chapter describes electromagnetic processing of electrically conductive materials such as electromagnetic levitation, mixing, brake, and etc., which are caused by the Lorentz force. The fifth chapter treats magnetic processing of organic and non-organic materials such as magnetic levitation, crystal orientation, structural alignment and etc., which are induced by the magnetization force. This part is a new academic field named magneto-science, which focuses on the development of super-conducting magnets."
Dordrecht: [Springer, ], 2012
e20425150
eBooks  Universitas Indonesia Library
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Fei Wang, editor
"The 33 revised full papers presented were carefully reviewed and selected from 67 submissions. The main aim of this workshop is to help advance the scientific research within the broad field of machine learning in medical imaging. It focuses on major trends and challenges in this area, and it presents work aimed to identify new cutting-edge techniques and their use in medical imaging."
Berlin: Springer, 2012
e20406923
eBooks  Universitas Indonesia Library
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Wisnu Ari Adi
"This paper reports on the magnetic properties and electromagnetic characterization of La0.8Ba0.2FexMn½(1-x)Ti½(1-x)O3 (x = 0.1–0.8). The La0.8Ba0.2FexMn½(1-x)Ti½(1-x)O3 (x = 0.1–0.8) materials were prepared using a mechanical alloying method. All the materials were made of analytical grade precursors of BaCO3, Fe2O3, MnCO3, TiO2, and La2O3, which were blended and mechanically milled in a planetary ball mill for 10h. The milled powders were compacted and subsequently sintered at 1000°C for 5h. All the sintered samples showed a fully crystalline structure, as confirmed using an X-ray diffractometer. It is shown that all samples consisted of LaMnO3 based as the major phase with the highest mass fraction up to 99% found in samples with x < 0.3. The mass fraction of main phase in doped samples decreased in samples with x > 0.3. The hysteresis loop derived from magnetic properties measurement confirmed the present of hard magnetic BaFe12O19 phase in all La0.8Ba0.2FexMn½(1-x)Ti½(1-x)O3 (x = 0.1–0.8) samples. The results of the electromagnetic wave absorption indicated that there were three absorption peaks of ~9 dB, ~8 dB, and ~23.5 dB, respectively, at respective frequencies of 9.9 GHz, 12.0 GHz, and 14.1 GHz. After calculations of reflection loss formula, the electromagnetic wave absorption was found to reach 95% at the highest peak frequency of 14.1 GHz with a sample thickness of around 1.5 mm. Thus, this study successfully synthesized a single phase of La0.8Ba0.2FexMn½(1-x)Ti½(1-x)O3 (x = 0.1–0.8) for the electromagnetic waves absorber material application."
Depok: Faculty of Engineering, Universitas Indonesia, 2017
UI-IJTECH 8:5 (2017)
Artikel Jurnal  Universitas Indonesia Library
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Tong, Xingcun Colin
Boca Raton: CRC Press, Taylor & Francis Group, 2009
621.382 24 TON a
Buku Teks SO  Universitas Indonesia Library
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New York: Academic Press, 1981
620.11 PRE
Buku Teks SO  Universitas Indonesia Library
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