Results 341 to 350 of about 870,217 (377)

Generation of ultrastable microwaves via optical frequency division

, 2011
Researchers demonstrate a microwave generator based on a high-Q optical resonator and a frequency comb functioning as an optical-to-microwave divider. They generate 10 GHz electrical signals with a fractional frequency instability of ≤8 × 10−16 at 1 s.
T. Fortier, M. Kirchner, F. Quinlan, Jacob M. Taylor, J. Bergquist, T. Rosenband, N. Lemke, A. Ludlow, Yanyi Jiang, C. Oates, S. Diddams   +10 more
semanticscholar   +1 more source

Microwaves in Organic and Medicinal Chemistry

, 2012
Preface. Personal Foreword. 1. Introduction: Microwave Synthesis in Perspective. 1.1 Microwave Synthesis and Medicinal Chemistry. 1.2 Microwave: Assisted Organic Synthesis (MAOS) - A Brief History. 1.3 Scope and Organization of the Book. 2.
C. Kappe, Alexander Stadler
semanticscholar   +1 more source

Greener Techniques for the Synthesis of Silver Nanoparticles Using Plant Extracts, Enzymes, Bacteria, Biodegradable Polymers, and Microwaves

, 2013
The use of silver nanoparticles (AgNPs) is gaining in popularity due to silver’s antibacterial properties. Conventional methods for AgNP synthesis require dangerous chemicals and large quantities of energy (heat) and can result in formation of hazardous ...
D. Hebbalalu, Jacob Lalley, M. Nadagouda, R. Varma   +3 more
semanticscholar   +1 more source

Microwaves in Europe

IEEE Transactions on Microwave Theory and Techniques, 2002
An overview of microwave activities and infrastructures in Europe is presented. The material is organized in 17 sections, each devoted to a country or group of countries and prepared by an. internationally renowned microwave expert. In general, each section contains some history of microwaves in the region, and highlights some microwave activities in ...
R. Sorrentino, T. Oxley, G. Salmer, A. V. Vorst, L. P. Ligthart, P. Russer, G. Gerosa, PELOSI, GIUSEPPE, J. B. Andersen, A. V. Raisanen, E. Kollberg, J. Modelski, O. G. Vendik, I. B. Vendik, T. Berceli, M. Salazar Palma, J. Costa Freire, N. Uzunoglu, A. Madjar   +18 more
openaire   +3 more sources

Microwaves in nanoparticle synthesis : fundamentals and applications

, 2013
PREFACE INTRODUCTION TO NANOPARTICLES General Introduction to Nanoparticles Methods of Nanoparticle Synthesis Surface Plasmon Resonance and Coloring Control of Size, Shape, and Structure Reducing Agent in Nanoparticle Synthesis Applications of Metallic ...
S. Horikoshi, N. Serpone
semanticscholar   +1 more source

Microwave Engineering Problems in the Microwave Oven

MTT-S International Microwave Symposium Digest, 2005
A general review of microwave engineering problems of the microwave oven is presented. Of central importance is the continuing improvement of the microwave magnetron in efficiency and stability. The goal of uniform heating is discussed with reference to measurement techniques and efforts at standardization.
openaire   +2 more sources

Role of microwaves in heterogeneous catalytic systems

, 2014
This article reviews, albeit non-exhaustively, recent research of chemical reactions induced by microwave radiation in heterogeneous catalytic systems, a field that has been rather active since the 1990s.
S. Horikoshi, N. Serpone
semanticscholar   +1 more source

Microwave Technology in the Microwave Landing System

MTT-S International Microwave Symposium Digest, 2005
The purpose, format, principles of operation, and equipment used in the microwave landing system (MLS) are described. Special emphasis is given to microwave components in the system. Opportunities for innovation in technology development are discussed.
openaire   +2 more sources

Microwave Propagation in Space and Microwave Antennas

2018
One of the most important applications of microwave is in communication, followed by RADAR.
openaire   +2 more sources

Metasurfaces: From microwaves to visible

, 2016
S. Glybovski, S. Tretyakov, P. Belov, Y. Kivshar, C. Simovski   +4 more
semanticscholar   +1 more source