Optical Arbitrary Waveform Measurement (OAWM) on the Silicon Photonic Platform

We demonstrate optical arbitrary waveform measurement (OAWM) using a silicon pho-tonic spectral slicer. Exploiting maximal-ratio combining (MRC), we demonstrate the viability of the scheme by reconstructing 100-GBd 64QAM signals with high quality

Photonic-Electronic Ultra-Broadband Signal Processing: Concepts, Devices, and Applications

Combining photonic integrated circuits (PIC) with millimeter-wave electronics opens novel perspectives in generation and detection of ultra-broadband signals with disruptive potential for a wide variety of applications. Here, we will give an overview on our recent progress in the field of ultra-broadband photonic-electronic signal processing, covering device concepts such as silicon plasmonic integration, signal processing concepts such as Kramers-Kronig-based phase reconstruction of THz signals, as well as application demonstrations in the field of high-speed wireless data transmission

Комплексный подход по подбору скважинного оборудования на Ванкорском нефтегазовом месторождении (Красноярский край)

Анализ осложнений при эксплуатации скважин в условиях Ванкорского нефтегазового месторождения. Технологические решения по подбору скважинного оборудования добывающих скважин.Analysis of complications in the operation of wells in the conditions of the Vankor oil and gas field. Technological solutions for the selection of downhole equipment for producing wells

Organizing risk: organization and management theory for the risk society

Risk has become a crucial part of organizing, affecting a wide range of organizations in all sectors. We identify, review and integrate diverse literatures relevant to organizing risk, building on an existing framework that describes how risk is organized in three ‘modes’ – prospectively, in real-time, and retrospectively. We then identify three critical issues in the existing literature: its fragmented nature; its neglect of the tensions associated with each of the modes; and its tendency to assume that the meaning of an object in relation to risk is singular and stable. We provide a series of new insights with regard to each of these issues. First, we develop the concept of a risk cycle that shows how organizations engage with all three modes and transition between them over time. Second, we explain why the tensions have been largely ignored and show how studies using a risk work perspective can provide further insights into them. Third, we develop the concept of risk translation to highlight the ways in the meanings of risks can be transformed and to identify the political consequences of such translations. We conclude the paper with a research agenda to elaborate these insights and ideas further

Design of a novel cascoded CMOS OpAmp with high gain and ± 1.5 V power supply voltage

The design of a novel CMOS operational amplifier with two differential input stages is described. Prototype circuits have been fabricated and measured successfully. By using a nested Miller compensation the stability of the operational amplifier is ensured. The layout has been created automatically by using the ALADIN tool [6-9]. The small signal model for the amplifier is depicted and the test results are presented

On the planning of research registries and controlled prognostic studies

SIGLETIB Hannover: RO 5200(1987,2) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Asymmetric Dual-Band UWB / 60 GHz Demonstrator

International audienceThis paper describes a pragmatic approach on the up-conversion of WiMedia compliant UWB signals into the 60 GHz band. This dual band concept is based on propagation measurements at {3.1-10.6} and 60 GHz. Due to stringent frequency regulation, Up-conversion to the 60 GHz band and enhanced baseband parameters can make UWB technology more reliable. An experimental system based on a commercially available UWB development kit and IHPs 60 GHz chip-set has been developed