Phonons in nanostructures / / Michael A. Stroscio and Mitra Dutta [[electronic resource]]

• Record Nr.: UNINA9910454932603321
• Autore: Stroscio Michael A. <1949->
• Pubbl/distr/stampa: Cambridge : , : Cambridge University Press, , 2001
• ISBN: 1-107-12204-X; 0-511-01305-1; 1-280-43291-8; 9786610432912; 0-511-17405-5; 0-511-15360-0; 0-511-30351-3; 0-511-53489-2; 0-511-04714-2
• Descrizione fisica: 1 online resource (xiv, 274 pages) : digital, PDF file(s)
• Disciplina: 530.4/16
• Soggetti: Nanostructures; Phonons
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Title from publisher's bibliographic system (viewed on 05 Oct 2015).
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Phonons in nanostructures -- Phonon effects: fundamental limits on carrier mobilities and dynamical processes -- Tailoring phonon interactions in devices with nanostructure components -- Phonons in bulk cubic crystals -- Cubic structure -- Ionic bonding -- polar semiconductors -- Linear-chain model and macroscopic models -- Dispersion relations for high-frequency and low-frequency modes -- Displacement patterns for phonons -- Polaritons -- Macroscopic theory of polar modes in cubic crystals -- Phonons in bulk wurtzite crystals -- Basic properties of phonons in wurtzite structure -- Loudon model of uniaxial crystals -- Application of Loudon model to III-V nitrides -- Raman properties of bulk phonons -- Measurements of dispersion relations for bulk samples -- Raman scattering for bulk zincblende and wurtzite structures -- Zincblende structures -- ; Wurtzite structures -- Lifetimes in zincblende and wurtzite crystals -- Ternary alloys -- Coupled plasmon-phonon modes -- Occupation number representation -- Phonon mode amplitudes and occupation numbers -- Polar-optical phonons: Frohlich interaction -- Acoustic phonons and deformation-potential interaction -- Piezoelectric interaction -- Anharmonic coupling of phonons -- Non-parabolic terms in the crystal potential for ionically bonded atoms -- Klemens' channel for the decay process LO [right arrow] LA(1) + LA(2) -- LO phonon lifetime in bulk cubic materials -- Phonon lifetime effects in carrier relaxation -- Anharmonic effects in wurtzite structures: the Ridley channel.
• Sommario/riassunto: This book focuses on the theory of phonon interactions in nanoscale structures with particular emphasis on modern electronic and optoelectronic devices. The continuing progress in the fabrication of semiconductor nanostructures with lower dimensional features has led to devices with enhanced functionality and even novel devices with new operating principles. The critical role of phonon effects in such semiconductor devices is well known. There is therefore a great need for a greater awareness and understanding of confined phonon effects. A key goal of this book is to describe tractable models of confined phonons and how these are applied to calculations of basic properties and phenomena of semiconductor heterostructures. The level of presentation is appropriate for undergraduate and graduate students in physics and engineering with some background in quantum mechanics and solid state physics or devices. A basic understanding of electromagnetism and classical acoustics is assumed.

Imaging in Neurovascular Disease : A Case-Based Approach / / by: Brinjikji, Waleed, Krings, Timo

• Record Nr.: UNINA9910793876703321
• Autore: Brinjikji Waleed
• Pubbl/distr/stampa: New York, New York : , : Thieme, , [2020]; ©2020
• ISBN: 1-63853-640-6; 1-68420-054-7
• Descrizione fisica: 1 online resource (242 pages) : illustrations
• Disciplina: 616.8047572
• Soggetti: Nervous system - Radiography; Case Reports.; Case studies.
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Acute ischemic stroke -- Cervical vascular disease -- Intracranial steno-occlusive disease -- Intracranial aneurysms -- Cerebral arteriovenous malformations (AVMs) and dural arteriovenous fistulas (dAVFs) -- Pediatric neurovascular disease -- Venous occlusive diseases -- Angiographically occult vascular lesions -- Small vessel disease -- Intracranial hemorrhage -- Spinal vascular disease.
• Sommario/riassunto: Unique case-based reference presents high-yield images and expertise focused on vascular neuroradiology. Imaging in Neurovascular Disease: A Case-Based Approach by Waleed Brinjikji and Timo Krings is unique in its approach, detailing diagnostic and interventional neuroradiology cases based on radiologic findings. The book explores the key role vascular imaging can play in treatment decision making, prognostication, and improving the understanding of the pathophysiology of neurovascular diseases.Spread over 11 chapters, this book covers a full spectrum of neurovascular diseases spanning the age continuum, starting with acute ischemic stroke, concluding with spinal vascular disease. All vascular neuroradiology cases follow a consistent format. After a succinct introduction describing the clinical scenario with relevant case images, the authors present key facts about ; the disease and the integral role of different neurovascular imaging procedures in disease management. Imaging findings are discussed in depth, with insightful clinical pearls on image-guided procedures and tips on managing potential pitfalls.--

Honar-e eslami : me'mari, kasikari, felezkari, bafandegi, naqqasi / neveste-ye Karel Ji. Duri ; tarjome-ye Reza Basiri

• Record Nr.: UNIORUON00017214
• Autore: DU RY, Carel J.
• Pubbl/distr/stampa: Tehran, : Farhangsara, 1363 H. [1984] 248 p., : ill. ; 30 cm Trad. di : Art of Islam / Carel J. Du Ry
• Descrizione fisica: New York : Abram, 1970
• Classificazione: ARA IX A
• Soggetti: Arte - Iran; ARTE ISLAMICA
• Lingua di pubblicazione: Persiano
• Formato: Materiale a stampa
• Livello bibliografico: Monografia