<b>A synergistic approach to signal integrity for high-speed digital design</b> <p>This book is designed to provide contemporary readers with an understanding of the emerging ...high-speed signal integrity issues that are creating roadblocks in digital design. Written by the foremost experts on the subject, it leverages concepts and techniques from non-related fields such as applied physics and microwave engineering and applies them to high-speed digital design&#8212;creating the optimal combination between theory and practical applications.</p> <p>Following an introduction to the importance of signal integrity, chapter coverage includes:</p> <ul> <li>Electromagnetic fundamentals for signal integrity</li> <li> <p>Transmission line fundamentals</p> </li> <li> <p>Crosstalk</p> </li> <li> <p>Non-ideal conductor models, including surface roughness and frequency-dependent inductance</p> </li> <li> <p>Frequency-dependent properties of dielectrics</p> </li> <li> <p>Differential signaling</p> </li> <li> <p>Mathematical requirements of physical channels</p> </li> <li> <p>S-parameters for digital engineers</p> </li> <li> <p>Non-ideal return paths and via resonance</p> </li> <li> <p>I/O circuits and models</p> </li> <li> <p>Equalization</p> </li> <li> <p>Modeling and budgeting of timing jitter and noise</p> </li> <li> <p>System analysis using response surface modeling</p> </li> </ul> <p>Each chapter includes many figures and numerous examples to help readers relate the concepts to everyday design and concludes with problems for readers to test their understanding of the material. <i>Advanced Signal Integrity for High-Speed Digital Designs</i> is suitable as a textbook for graduate-level courses on signal integrity, for programs taught in industry for professional engineers, and as a reference for the high-speed digital designer.</p>
Górnicze maszyny akumulatorowe zasilane są w większości z baterii ogniw kwasowo-ołowiowych. Ogniwa te w czasie ładowania bądź doładowywania wydzielają wodór, który w określonych stężeniach jest gazem ...wybuchowym. Świadomość tego zagrożenia jest coraz bardziej powszechna wśród użytkowników maszyn akumulatorowych a swoje zainteresowanie skutecznością wentylacji skrzyń bateryjnych wyrażają pracownicy zakładów górniczych oraz urzędnicy organu nadzoru rynku.W artykule przedstawiono wyniki badań skuteczności wentylacji skrzyń akumulatorowych oraz wskazano problemy z nią związane. Zaproponowano nowoczesne rozwiązanie poprawiające bezpieczeństwo pracy maszyn akumulatorowych zasilanych z baterii ogniw ołowiowych. Omówiono budowę i zasadę działania autonomicznego systemu monitorowania parametrów pracy baterii ogniw ołowiowych,jak również zastosowane w nim technologie pomiarowe.
The Development of a Online E-Module of Analog Electronics on the Distance Education. This research aims to develop an online e-module of analog electronics in order to help improving the ...distance education services. The research method used is a development research using the development model of Borg & Gall, which has been modified according to the conditions on the field. The validation of the feasibility of the online e-module of analog electronics is performed using an online questionnaire. The result of this research is an online e-module of analog electronics for learning about concepts of an interactive analog electronics that has validity in the field of media experts of 89.65% (very good), expert material of 87.20% (very good), and small groups of student of 89.45% (very good). Thus, it can be concluded that the development of an online e-modules of analog electronics for distance education is feasible to be used as a learning media. Penelitian ini bertujuan mengembangkan e-modul online Elektronika Analog untuk membantu meningkatkan layanan pendidikan jarak jauh. Metode penelitian pengembangan yang digunakan adalah research and development model Borg dan Gall yang disesuaikan dengan kondisi lapangan. Validasi kelayakan e-modul online Elektronika Analog dilakukan dengan menggunakan kuesioner secara online. Hasil penelitian berupa e-modul online Elektronika Analog untuk pembelajaran konsep Elektronika Analog, yang memiliki validitas ahli media sebesar 89,65% (sangat baik), ahli materi sebesar 87,20% (sangat baik), dan kelompok kecil siswa sebesar 89,45% (sangat baik). Sehingga dapat disimpulkan bahwa pengembangan e-modul online Elektronika Analog pada pendidikan jarak jauh ini layak untuk dipertimbangkan sebagai media pembelajaran.
The purpose of this paper is to fabricate a humidity sensor from organic semiconductor and to understand the effect of the transistor`s structure on the sensitivity of humidity sensor. Organic ...MOSFETs were fabricated using organic semiconductor called pentacene. The structures were bottom-contact and top-contact. The bottom-contact pentacene MOSFET was more sensitive to humidity than the top-contact pentacene MOSFET was. When the relative humidity increased from 20 % to 70 %, for VGS = VDS = -5 V, the magnitude of drain source current of the MOSFET decreased from 0.45 µA to 0.1 µA for bottom-contact pentacene MOSFET and from 3.6 µA to 3 µA for top-contact pentacene MOSFET. As the relative humidity increased from 20 % to 70 %, for VGS = 2 V and VDS = -5 V, the magnitude of drain source current of the MOSFET increased from 0.77 nA to 3 nA for bottom-contact pentacene MOSFET and from 0.6 nA to 1.4 nA for top-contact pentacene MOSFET. As the relative humidity increased from 20 % to 70 %, the threshold voltage shifted toward positive direction, from 0.5 V to 2 V for bottom-contact pentacene MOSFET and from 1 V to 2 V for top-contact pentacene MOSFET. The result showed that the pentacene MOSFET with bottom-contact structure was more suitable for humidity sensor than that with top-contact structure.
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