Speckle in the Doppler signal - correlation of CW-Doppler signals from blood for varying transmit frequency

Speckle is an unwanted noise in ultrasound images, and appears as returning echoes are coherently summed over the transducer surface. In Doppler applications, the total power of the received spectrum varies in a manner similar to speckle. This paper investigates the correlation of continuous-wave (CW) Doppler signals obtained from simultaneously transmitted carrier frequencies, when a slowly flowi

Corporate and nonformal learning. Adult education research in Nordic countries

Musiken i den japanska tankevärlden – tre exempel

Spectrum Variability for the HgMn Star alpha And

The detection of spectral line profile variability for stars of the HgMnclass of chemical peculiarity has been poorly documented in theliterature yet holds a special significance for understandingrelationships between observed spectral anomalies, stellar surfacestructure, and magnetic fields. The HgMn stars have until now not beenconfirmed to vary in their light or spectral characteristics in ways

The Message of Jesus according to Rudolf Bultmann

Organiserad brottslighet - lösa maskor eller fasta nätverk

The Ethiopian Economy 1974-1994: Ethiopia Tikdem and After

China: Water rises as sustainability priority

The letter-collections of Antony and Ammonas : shaping a community

PI 3-kinase regulation of dopamine uptake

Metonymization : A key mechanism in semantic change

Despite a sizable functional literature on variation and change, very little attention has been given to the diachronic mechanisms of meaning shifts and change covering the whole continuum from contentful to configurational meanings. This chapter is an attempt to begin filling this gap. It proposes a unitary approach to the mechanisms of variation and change within the Cognitive Linguistics framew

Protein phosphorylation in plant mitochondria

Protein phosphorylation in the subcompartments of plant mitochondria was investigated by labelling with [gamma-32P]ATP and by SDS-PAGE/autoradiography. About 20 proteins in inside-out inner mitochondrial membranes from potato tubers were phosphorylated by endogenous protein kinases when incubated with [gamma-32P]ATP. None of the phosphorylated proteins were labelled when using [alpha-32P]ATP as a

A TRPC-UWB Transmitter Front-end Based on Wideband IQ Modulator in 0.13-µm CMOS

This paper presents a prototype 3.1-8.2 GHz UWB transmitter front-end based on a novel transmitted reference pulse cluster (TRPC) scheme in the 0.13-μm CMOS process. The transmitter front-end consists of wideband low noise active baluns, IQ modulator based on noise-cancellation mixers with high linearity, and differential to single-ended (D-to-S) converter. The measurements show that the worst-cas

Central fixations are inadequately controlled by instructions alone: Implications for studying cerebral asymmetry

Computational aeroacoustics of a s eparate flow exhaust system with eccentric inner nozzle

A major issue related to our modern way of life is the noise caused by jet engine powered airliners. Methods to reduce the jet noise were proposed in the last decades starting with the introduction of high bypass turbofan engines. A numerical investigation of flow and acoustics of a separate flow exhaust system is performed in the present paper. The goal is to investigate how the noise generated b

Före betydelsernas förnumstiga inträde. Till Bertil Lundberg.

Extraterrestrial life for the masses : Knut Lundmark and the boundaries of science

Neurotrophins in kindling epilepsy: neuronal protection or induction of sprouting and epileptogenesis?

Interkulturella perspektiv: från modern till postmodern pedagogik

VAT and Virtual Reality: How Should Cryptocurrencies Be Treated for VAT Purposes?