M. De Bruin · IUPAC Standards Online · 2016
This glossary lists close to 400 terms and definitions commonly used in radiochemistry, with emphasis on radioanalytical chemistry. Part of the definitions have been taken, sometimes with minor modifications, from existing glossaries of such organizations as the International Organization for Standardization and the International Electrotechnical Commission. In cases where no acceptable definition could be found, a new definition is proposed.
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J.J. Shonka, D.M. DeBord, Javid L. Kelley et al. · Health Physics · 2003
Shonka, Joseph J.; DeBord, Don M.; Kelley, Javid L.; Marcial, Michael R. Author Information
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Kevin Hart · Health Physics · 2003
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张, 雷 · Figshare · 2021
qPCR detection knockdown efficiency<br>
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雷 张 · Figshare · 2021
qPCR detection knockdown efficiency<br>
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Daniel P. Zitterbart (219647), Lars Kindermann (444565), Elke Burkhardt (444566) et al. · Figshare · 2015
<p>A: Cue-based classifier ROC curves for training, testing and two (day and night) validation datasets. AUC values: Training: 0.99; Testing: 0.98; Validation day: 0.90; Validation night: 0.98<b>.</b> B: Lines with error bars: Proportion of successful automatic detections of all visually detected blows (black), and proportion of visually detected blows of all automatic detections (grey) versus distance (bin width of 1 km). Errorbars give the standard error. Bar plot: Number of automatic (black) and visual (grey) detections versus distance.</p>
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Tsapras, Y., Hundertmark, M., Wyrzykowski, L. et al. · Strasbourg Astronomical Data Center · 2016
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Gentile Simonetta · International Linear Collider · 2010
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Pasquale Tricarico · The Astronomical Journal · 2016
ABSTRACT A comprehensive characterization of the detection efficiency of nine of the major asteroid surveys that have been active over the past two decades is presented. The detection efficiency is estimated on a nightly basis by comparing the detected asteroids with the complete catalog of known asteroids propagated to the same observing epoch. Results include a nightly estimate of the detection efficiency curves as a function of apparent magnitude and apparent velocity of the asteroids, as well as a cumulative analysis to estimate the overall performance of each survey. The limiting magnitude distribution is estimated for each survey, and it is then modeled as a function of telescope aperture to obtain an estimate over a wide range of apertures.
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M. P. Lombardo, F. Marchetto · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1992
In this memo they present some results on the Central Calorimeter {gamma} detection efficiency in the low energy region. Briefly, the software energy threshold to start a cluster has to be decided on the basis of the detection efficiency because using a too low value increases the amount of spurious clusters and on the other hand a too high threshold tends to reject good clusters. They used a sample of reconstructed {pi}{sup 0}{pi}{sup 0} events at E{sub CM} = 2.985 GeV with a cluster threshold at 20 MeV and 5 MeV for the central block. For each event they selected the least energetic {gamma} among the fitted values. The energy distribution of the low energy tail is shown in Fig. 1.a. The expected {gamma} energy distribution has been simulated by Monte Carlo. Events p{bar p} {yields} {pi}{sup 0}{pi}{sup 0} were generated starting with the experimental center of mass angular distribution. They selected events with 4{gamma} in the Central Calorimeter acceptance and considered the least energetic {gamma} among the four. The generated distribution is shown in Fig. 1.b. The detection efficiency as a function of E{sub {gamma}} can be computed comparing the experimental softest {gamma} energy distribution to the expected from Monte Carlo. The normalization can be done in several ways: (a) assuming a 100% detection efficiency for {gamma} with energy within 200 and 400 MeV; (b) normalizing the total number of reconstructed events. The two methods gave normalization constants differing by less than 1%. In Fig. 2 they show the detection efficiency plot as a function of the {gamma} energy. The curve is rather sharp and at around 30 MeV the efficiency saturates at 1. They notice that efficiency is slightly higher than 1., and they explain the anomalous behavior as an indication of a contribution of background events, which tends to be higher with soft {gamma}'s.
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Wei Luo, Anthony Ephremides · 2003
We study the power consumption of several multiuser detectors in the power controlled DS-CDMA system. The matched-filter detector, linear MMSE detector, successive interference cancellation (SIC), and LMMSE-SIC are considered. Closed form analysis and numerical results show that by using a multiuser detector, system power consumption can significantly be reduced and the network capacity be increased.
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Alexandros Sountoulidis (142333), Andreas Liontos (9667625), Hong Phuong Nguyen (9667628) et al. · Figshare · 2020
<p>(A-C) Representative images of SCRINSHOT signals for <i>Scgb1a1</i> padlock probes in the absence or presence of an antisense competitor oligo, targeting the binding site of <i>Scgb1a1</i> padlock probe. SCRINSHOT signal for <i>Scgb1a1</i> padlock probe in the absence of the antisense competitor oligo (A), when mixed in equal concentration with the antisense competitor oligo (B) and when mixed with 5 times higher concentration of the antisense competitor oligo (C). (A’-C’) Magnified areas of the indicated positions (square brackets) of images A-C. (D) Violin plot of the <i>Scgb1a1</i> and <i>Actb</i> signal dots ratio in all airway cells of the 3 compared conditions. Scale bars in (A-C) is 100 μm and (A’-C’) is 10 μm. All analyses were done using raw images and the same thresholds. For visualization purposes, brightness and contrast of <i>Scgb1a1</i> were set independently in the compared conditions to show the existence of signal in the presence of antisense competitor and avoid signal saturation in its absence. The data underlying this Figure can be found in 10.5281/zenodo.3634561. A, antisense competitor; P, padlock probe.</p>
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M. Chauvet-Deroudilhe, M. Dell'Amico, M. Bordeaux et al. · 1980
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Alle Rechte Vorbehalten, Technischen Universität München, Stefan Wagner et al. · 2004
Various effectiveness and effciency metrics have been proposed for defect -detection techniques and quality assurance. This report aims at introducing and comparing the most common metrics that include the effort for the techniques. These metrics are based on code coverage and fault count. Furthermore two new metrics are introduced that use the failure intensity as a more reliability-oriented measure.
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Rashmi N, Suma V · 2014
Survival of IT industries depends much upon the development of high quality and customer satisfied software products. Quality however can be viewed from various perspectives such as deployment of the products within estimated resources, constrains and also being defect free. Testing is one of the promising techniques ever since the inception of software in the global market. Though there are several testing techniques existing, the most widely accepted is the conventional scripted testing. Despite of advancement in the technology, achieving defect free deliverables is yet a challenge. This paper therefore aims to enhance the existing testing techniques in order to achieve nearly zero defect products through the combined approach of scripted and exploratory testing. This approach thus enables the testing team to capture maximum defects and thereby reduce the expensive nature of overheads. Further, it leads towards generation of high quality products and assures the continued customer satisfaction.
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V. Goutham, D Madhuri, T Thirumani · International Journal of Engineering Trends and Technology · 2016
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Jochen Szangolies, Hermann Kampermann, Dagmar Bruß · Physical Review Letters · 2017
In many quantum information applications, a minimum detection efficiency must be exceeded to ensure success. Protocols depending on the violation of a Bell inequality, for instance, may be subject to the so-called detection loophole: Imperfect detectors may yield spurious violations, which consequently cannot be used to ensure, say, quantum cryptographic security. Hence, we investigate the possibility of giving lower bounds on detector efficiency even if an adversary has full control over both the source and the detectors. To this end, we present a technique to systematically derive Bell inequalities free from the detection loophole using only the observed measurements statistics. The violation of these inequalities certifies that the detectors used exceed a certain minimal efficiency.
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Kwanhyung Park · 2026
The 2024 GBAR experiment measured the antihydrogen production cross section \\($\mathrm{\overline{p}+Ps \rightarrow \overline{H} + e^-}$). We used a Microchannel Plate (MCP) detector to measure the produced antihydrogen. To determine the systematic uncertainty in this measurement, we need to quantify the MCP detection inefficiency for antihydrogen. Since direct measurement of this inefficiency is not feasible, we performed a GEANT4 simulation study using antiprotons as a proxy, given that antihydrogen detection relies primarily on the annihilation products of its antiproton component. Our simulation implemented a realistic toy model of the MCP with 15 pores in a triangular array and a 20 nm nichrome coating. We found that 5.3\% of antiprotons annihilating on the MCP surface produce no detectable signal because their charged annihilation products fail to enter any pore. Combined with a backscattering measurement that found no evidence for backscattering with a conservative upper limit of 10\%, the total MCP detection inefficiency for antiprotons is 2.2\%, with an upper bound of approximately 12\% when accounting for the backscattering limit. This result provides an essential systematic correction factor for the antihydrogen production cross-section measurement.
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Frederick J. Mayer, Henry Brysk · Nuclear Instruments and Methods · 1975
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V. P. Palchikov, B. T. Budai · AIP conference proceedings · 2016
Obstacles should be timely detected in order to ensure safe driving of vehicles. It is shown that for this purpose a locator operating within the near IR-region must be used. A high-performance locator has been developed which provides high-precision measurement of distance to obstacles even in difficult observation conditions.
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