نتایج جستجو برای: drift spectroscopy

تعداد نتایج: 202719  

The present study assesses the seismic performance of steel moment resisting frames (SMFs) retrofitted with different bracing systems. Two structural configurations were utilized: ordinary concentrically braces (OCBFs), buckling-restrained braces (BRBFs). A 7-story and 18-story steel perimeter SMFs were designed with insufficient lateral stiffness to satisfy code drift limitations in high seism...

Journal: :Acta oncologica 2017
Christer Andre Jensen Ana María Acosta Roa Jo-Åsmund Lund Jomar Frengen

BACKGROUND Intrafraction motion in breast cancer radiation therapy (BCRT) has not yet been thoroughly described in the literature. It has been observed that baseline drift occurs as part of the intrafraction motion. This study aims to measure baseline drift and its incidence in free-breathing BCRT patients using an in-house developed laser system for tracking the position of the sternum. MATE...

Journal: :Advanced Energy Materials 2021

Cu(In,Ga)Se2 solar cells have markedly increased their efficiency over the last decades currently reaching a record power conversion of 23.3%. Key aspects to this progress are engineered bandgap gradient profile across absorber depth, along with controlled incorporation alkali atoms via post-deposition treatments. Whereas impact these treatments on carrier lifetime has been extensively studied ...

Journal: :Journal of Instrumentation 2023

DANTE is a new Digital Pulse Processor (DPP) developed for fluorescence detectors, like silicon drift detectors (SDDs) or High Purity Germanium (HPGe), used in X-ray Fluorescence (XRF) and Absorption Spectroscopy (XAS) experiments at synchrotron facilities. Its main features are its optimal energy resolution peak stability detector count rate values up to 1-2 Mcps, enhanced rejection of pile-up...

Journal: :روش های عددی در مهندسی (استقلال) 0
کمال میرطلائی و نواب اسدی زید آبادی k. mirtalaei and n. asadi zeidabadi

current innovative lateral load carrying systems for tall buildings are those in which the lateral drift is limited to an allowable value without considerable influence on economy. this aim is achieved by using special systems capable of using maximum stiffness and strength capacity of individual structural elements. an effective structural solution in this respect is the use of outrigger brace...

Journal: :caspian journal of chemistry 2013
ali sheibani m. reza shishehbore shohrah vafaie-shahi

in this study, a rapid, simple and sensitive ion mobility spectrometry (ims) method with corona discharge as ionization source was described for the morphine determination in human urine. morphine was extracted and purified from urine samples using solid phase extraction procedure with c18 column. it can offer the clean extracts which no extra peaks were observed in ims. under operating experim...

2004
D. RAUTMANN

Drift is one of the main paths of plant protection products to non-target organisms. In Germany great efforts are made to reduce drift. Therefore sprayers are tested concerning their drift reducing ability in relation to the German basic drift values which have been determined on the basis of more than 180 drift trials with conventional sprayers. A classification system with classes of at least...

2002
David Hirshleifer James N. Myers Linda A. Myers Siew Hong Teoh

This study examines how individual investor trade in response to quarterly earnings surprises and the relation of trades to subsequent returns. Individuals are highly significant net buyers after negative earnings surprises; net buying is weaker after positive surprises. There is no indication that trading by any of our investor subcategories explains the concentration of drift at subsequent ea...

Journal: :CoRR 2017
Johannes Lengler

Drift analysis is one of the major tools for analysing evolutionary algorithms and nature-inspired search heuristics. In this chapter we give an introduction to drift analysis and give some examples of how to use it for the analysis of evolutionary algorithms.

Journal: :The Iowa Review 1974

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