Relevant bibliographies by topics / Sum of coherence

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Academic literature on the topic 'Sum of coherence'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Sum of coherence"

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Da´vila, Jose´ B., Muhammad R. Hajj, Richard W. Miksad, and Edward J. Powers. "Spatial Coherence in the Wake of a Flat Plate." Applied Mechanics Reviews 50, no. 11S (November 1, 1997): S36—S38. http://dx.doi.org/10.1115/1.3101846.

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Spatial coherence of the streamwise velocity fluctuation was measured in the wake of a flat plate in a wind tunnel. The measurements were made in the context of determining the role of wavenumber resonance in quadratic interactions among resonant frequency modes. Frequency domain results show that sum-interaction modes targeted by coupled mode pairs are spatially coherent. This suggests that spatial coherence measurements can be combined with bispectral measurements to determine mode energy transit and direction.
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Wilson, Hugh R., and Jeounghoon Kim. "A model for motion coherence and transparency." Visual Neuroscience 11, no. 6 (November 1994): 1205–20. http://dx.doi.org/10.1017/s0952523800007008.

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AbstractA recent model for two-dimensional motion processing in MT has demonstrated that perceived direction can be accurately predicted by combining Fourier and non-Fourier component motion signals using a vector sum computation. The vector sum direction is computed by a neural network that weights Fourier and non-Fourier components by the cosine of the component direction relative to that of each pattern unit, after which competitive inhibition extracts the signals of the most active units. It is shown here that a minor modification of the connectivity in this network suffices to predict transitions from motion coherence to transparency under a wide range of circumstances. It is only necessary that the cosine weighting function and competitive inhibition be limited to directions within ± 120 deg of each pattern unit's preferred direction. This network responds by signaling one pattern direction for coherent motion but two distinct directions for transparent motion. Based on this, neural networks with properties of MT and MST neurons can automatically signal motion coherence or transparency. In addition, the model accurately predicts motion repulsion under transparency conditions.
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Shen, Che-Chou, and Pei-Ying Hsieh. "Two-Dimensional Spatial Coherence for Ultrasonic DMAS Beamforming in Multi-Angle Plane-Wave Imaging." Applied Sciences 9, no. 19 (September 23, 2019): 3973. http://dx.doi.org/10.3390/app9193973.

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Ultrasonic multi-angle plane-wave (PW) coherent compounding relies on delay-and-sum (DAS) beamforming of two-dimensional (2D) echo matrix in both the dimensions PW transmit angle and receiving channel to construct each image pixel. Due to the characteristics of DAS beamforming, PW coherent compounding may suffer from high image clutter when the number of transmit angles is kept low for ultrafast image acquisition. Delay-multiply-and-sum (DMAS) beamforming exploits the spatial coherence of the receiving aperture to suppress clutter interference. Previous attempts to introduce DMAS beamforming into multi-angle PW imaging has been reported but only in either dimension of the 2D echo matrix. In this study, a novel DMAS operation is proposed to extract the 2D spatial coherence of echo matrix for further improvement of image quality. The proposed 2D-DMAS method relies on a flexibly tunable p value to manipulate the signal coherence in the beamforming output. For p = 2.0 as an example, simulation results indicate that 2D-DMAS outperforms other one-dimensional DMAS methods by at least 9.3 dB in terms of ghost-artifact suppression. Experimental results also show that 2D-DMAS provides the highest improvement in lateral resolution by 32% and in image contrast by 15.6 dB relative to conventional 2D-DAS beamforming. Nonetheless, since 2D-DMAS emphasizes signal coherence more than its one-dimensional DMAS counterparts, it suffers from the most elevated speckle variation and the granular pattern in the tissue background.
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Qi, Jie, Fangyu Li, and Kurt Marfurt. "Multiazimuth coherence." GEOPHYSICS 82, no. 6 (November 1, 2017): O83—O89. http://dx.doi.org/10.1190/geo2017-0196.1.

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Since its introduction two decades ago, coherence has been widely used to map structural and stratigraphic discontinuities such as faults, cracks, karst collapse features, channels, stratigraphic edges, and unconformities. With the intent to map azimuthal variations of horizontal stress as well as to improve the signal-to-noise ratio of unconventional resource plays, wide-/full-azimuth seismic data acquisition has become common. Migrating seismic traces into different azimuthal bins costs no more than migrating them into one bin. If the velocity anisotropy is not taken into account by the migration algorithm, subtle discontinuities and some major faults may exhibit lateral shifts, resulting in a smeared image after stacking. Based on these two issues, we evaluate a new way to compute the coherence for azimuthally limited data volumes. Like multispectral coherence, we modify the covariance matrix to be the sum of the covariance matrices, each of which belongs to an azimuthally limited volume, and then we use the summed covariance matrix to compute the coherent energy. We validate the effectiveness of our multiazimuth coherence by applying it to two seismic surveys acquired over the Fort Worth Basin, Texas. Not surprisingly, multiazimuth coherence exhibits less incoherent noise than coherence computed from azimuthally limited amplitude volumes. If the data have been migrated using an azimuthally variable velocity, multiazimuth coherence exhibits higher lateral resolution than that computed from the stacked data. In contrast, if the data have not been migrated using an appropriate azimuthally variable velocity model, the misalignment of each image results in a blurring of the multiazimuth coherence and the coherence computed from the stacked data. This suggests that our method may serve as a future tool for azimuthal velocity analysis.
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Dai, Meifeng, Jiaojiao He, Huiling Wu, and Xianbin Wu. "Spectra analysis and network coherence for weighted folded hypercube." International Journal of Modern Physics B 33, no. 11 (April 30, 2019): 1950094. http://dx.doi.org/10.1142/s0217979219500942.

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Weighted folded hypercube is an charming variance of the famous hypercube and is superior to the weighted hypercube in many criteria. We mainly study the scaling of network coherence for the weighted folded hypercube that is controlled by a weight factor. Network coherence quantifies the steady-state variance of these fluctuations, and it can be regarded as a measure of robustness of the consensus process to the additive noise. If networks with small steady-state variance have better network coherence, it can be regarded as more robust to noise than networks with low coherence. We firstly calculate the spectra of weighted folded hypercube and obtain the leading terms of network coherence that are quantified as the sum and square sum of reciprocals of all nonzero Laplacian eigenvalues. Finally, the results show that network coherence depends on iterations and weight factor. Meanwhile, with larger order, the scatings of the first- and second-order network coherence of weighted folded hypercube decrease with the increasing of weight factor.
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Dai, Meifeng, Tingting Ju, Yongbo Hou, Jianwei Chang, Yu Sun, and Weiyi Su. "Coherence analysis of a family of weighted star-composed networks." International Journal of Modern Physics B 33, no. 23 (September 20, 2019): 1950264. http://dx.doi.org/10.1142/s0217979219502643.

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Recently, the study of many kinds of weighted networks has received the attention of researchers in the scientific community. In this paper, first, a class of weighted star-composed networks with a weight factor is introduced. We focus on the network consistency in linear dynamical system for a class of weighted star-composed networks. The network consistency can be characterized as network coherence by using the sum of reciprocals of all nonzero Laplacian eigenvalues, which can be obtained by using the relationship of Laplacian eigenvalues at two successive generations. Remarkably, the Laplacian matrix of the class of weighted star-composed networks can be represented by the Kronecker product, then the properties of the Kronecker product can be used to obtain conveniently the corresponding characteristic roots. In the process of finding the sum of reciprocals of all nonzero Laplacian eigenvalues, the key step is to obtain the relationship of Laplacian eigenvalues at two successive generations. Finally, we obtain the main results of the first- and second-order network coherences. The obtained results show that if the weight factor is 1 then the obtained results in this paper coincide with the previous results on binary networks, otherwise the scalings of the first-order network coherence are related to the node number of attaching copy graph, the weight factor and generation number. Surprisingly, the scalings of the first-order network coherence are independent of the node number of initial graph. Consequently, it will open up new perspectives for future research.
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He, Jiaojiao, Meifeng Dai, Yue Zong, Jiahui Zou, Yu Sun, and Weiyi Su. "Coherence analysis of a class of weighted tree-like polymer networks." Modern Physics Letters B 32, no. 05 (February 20, 2018): 1850064. http://dx.doi.org/10.1142/s0217984918500641.

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Complex networks have elicited considerable attention from scientific communities. This paper investigates consensus dynamics in a linear dynamical system with additive stochastic disturbances, which is characterized as network coherence by the Laplacian spectrum. Firstly, we introduce a class of weighted tree-like polymer networks with the weight factor. Then, we deduce the recursive relationship of the eigenvalues of Laplacian matrix at two successive generations. Finally, we calculate the first- and second-order network coherence quantifying as the sum and square sum of reciprocals of all nonzero Laplacian eigenvalues. The obtained results show that the scalings of first-order coherence with network size obey four laws along with the range of the weight factor and the scalings of second-order coherence with network size obey five laws along with the range of the weight factor.
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Chopra, Satinder, and Kurt J. Marfurt. "Multispectral, multiazimuth, and multioffset coherence attribute applications." Interpretation 7, no. 2 (May 1, 2019): SC21—SC32. http://dx.doi.org/10.1190/int-2018-0090.1.

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The coherence attribute computation is typically carried out as a poststack application on 3D prestack migrated seismic data volumes. However, since its inception, interpreters have applied coherence to band-pass-filtered data, azimuthally limited stacks, and offset-limited stacks to enhance discontinuities seen at specific frequencies, azimuths, and offsets. The limitation of this approach is the multiplicity of coherence volumes. Of the various coherence algorithms that have evolved over the past 25 years, the energy ratio coherence computation stands apart from the others, being more sensitive to the seismic waveform changes rather than changes in their amplitude. The energy ratio algorithm is based on the crosscorrelation of five or more adjacent traces to form a symmetric covariance matrix that can then be decomposed into eigenvalues and eigenvectors. The first eigenvector represents a vertically variable, laterally consistent pattern that best represents the data in the analysis window. The first eigenvalue represents the energy of the data represented by this pattern. Coherence is then defined as the ratio of the energy represented by the first eigenvalue to the sum of the energy of the original data. An early generalization of this algorithm was to compute the sum of two covariance matrices, one from the original data and the other from the 90° phase rotated data, thereby eliminating artifacts about low-amplitude zero crossings. More recently, this concept has been further generalized by computing a sum of covariance matrices of traces represented by multiple spectral components, by their azimuthally limited stacks, and by their offset-limited stacks. These more recently developed algorithms capture many of the benefits of discontinuities seen at specific frequencies, azimuths, and offsets, but they present the interpreter with a single volume. We compare the results of multispectral, multiazimuth, and multioffset coherence volumes with the traditional coherence computation, and we find that these newer coherence computation procedures produce superior results.
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Kibria, Salehin, Md Samsuzzaman, Md Tarikul Islam, Md Zulfiker Mahmud, Norbahiah Misran, and Mohammad Tariqul Islam. "Breast Phantom Imaging Using Iteratively Corrected Coherence Factor Delay and Sum." IEEE Access 7 (2019): 40822–32. http://dx.doi.org/10.1109/access.2019.2906566.

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Dai, Meifeng, Yue Zong, Jiaojiao He, Tingting Ju, Yu Sun, and Weiyi Su. "Consensus dynamics on a family of weighted recursive trees." Modern Physics Letters B 33, no. 02 (January 20, 2019): 1950003. http://dx.doi.org/10.1142/s0217984919500039.

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The consensus dynamics with additive stochastic disturbances are characterized by the network coherence, which is the robustness of consensus algorithms when the nodes are subject to external perturbations. In this paper, the research goal is to obtain the first- and second-order network coherence quantifying as the sum and square sum of reciprocals of all nonzero Laplacian eigenvalues. One innovation point of this paper is the structure of a family of the weighted recursive trees with weight factor. We mainly obtain the exact expressions and scalings of network coherence on the family of weighted recursive trees. The scalings of first-order network coherence with network size obey three laws along with the range of the weight factor, while the scalings of second-order network coherence obey four laws along with the range of the weight factor. In addition, the scalings of first- and second-order network coherence on our studied networks are smaller than those performed on other studied networks when [Formula: see text]. The obtained results indicate that the efficiency of network coherence on the weighted network has close relation to the weight distribution, and we can design a better weight distribution to make the coherence of network more efficient.
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Dissertations / Theses on the topic "Sum of coherence"

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Darré, Pascaline. "L'interféromètre à somme de fréquences ALOHA en bande H : Des tests en laboratoire jusqu'aux premières franges sur le ciel." Thesis, Limoges, 2016. http://www.theses.fr/2016LIMO0067.

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La technique de l'interférométrie en astronomie permet d'observer des objets avec une haute résolution angulaire comparativement à l'utilisation d'un unique télescope. L'observation dans l'infrarouge moyen représente aujourd'hui un enjeu en interférométrie notamment pour l'étude des noyaux actifs de galaxie ou de la formation des planètes. Cependant ce domaine spectral est particulièrement contraignant puisqu'il est soumis à l'émission propre des éléments optiques de l'instrument mais également de l'atmosphère. Ce manuscrit développe les travaux effectués sur un nouvel instrument utilisant un processus de conversion de fréquence pour transposer le rayonnement infrarouge vers un domaine spectral permettant de s'affranchir de l'émission propres des optiques. Un prototype fonctionnant dans le proche infrarouge à 1,55 µm et convertissant, via une processus de somme de fréquences, le rayonnement dans le domaine visible autour de 630 nm grâce à une pompe intense à 1064 nm, a été mis en place pour démontrer, en laboratoire, le principe de cette solution innovante notamment dans le cadre de l'analyse de la cohérence spatiale d'un corps noir. L'objectif est maintenant de démontrer la capacité de l'instrument à détecter un objet réel. J'introduis dans cette thèse les notions théoriques essentielles à la compréhension des travaux présentés pour ensuite détailler le fonctionnement de l'instrument et les éléments d'amélioration apportés, notamment en terme de transmission, au cours de ma thèse. Les études préliminaires en laboratoire du comportement de l'instrument ont permis d'aboutir aux premières franges sur le ciel en utilisant la plus petite base (34 m) du réseau interférométrique CHARA et de rechercher la magnitude limite de l'instrument. L'utilisation du processus de conversion de fréquence a pour conséquence de filtrer le spectre converti. Ainsi dans la configuration actuelle de l'interféromètre, seul 0,6 nm du spectre infrarouge en entrée du cristal est converti à travers le processus de SFG. Afin d'augmenter la sensibilité, une solution est de créer plusieurs processus de SFG simultanément dans chaque étage de conversion afin d'échantillonner le spectre infrarouge converti. Cette solution requiert d'utiliser plusieurs sources de pompe indépendantes qui vont créer des systèmes de franges incohérents. Je présente l'analyse de la cohérence temporelle d'une source infrarouge large bande convertie via l'utilisation de deux sources de pompe et un moyen de synchroniser les différents systèmes de franges afin de maximiser le contraste
Interferometry is an instrumental technique suitable to perform astronomical observations at high angular resolution. Currently, the mid-infrared spectral domain is a real issue for the astronomical interferometry to characterize astronomical objects such as proto-planetary discs or active galactic nuclei. However, this spectral domain is subject to a large thermal background emission from the instrument and from the sky. This manuscript describes an innovative instrument using a nonlinear process of sum frequency generation to convert the mid-infrared radiation to a shorter wavelength domain where the thermal emission from the instrument is negligible. A prototype operating in the near-infrared at 1.55 µm and converting the radiation in the visible domain at 630 nm thanks to a strong pump at 1064 nm has already demonstrated its ability to analyse spatial coherence of a blackbody source. The present goal is to demonstrate its ability to detect an object on the sky. In this manuscript I introduce theoritical concepts necessary for an understanding of the overall operation of the instrument. Then, I describe the main improvements provided in this thesis, in particular concerning the instrumental transmission. The preliminary studies of the instrument operation resulted in the first on-sky fringes on the CHARA array and enabled to determine its limiting magnitude. The upconversion process acts as a filter on the converted spectrum. In the current instrumental configuration, only 0.6 nm of the input infrared spectrum is converted through the SFG process. For the purpose of increasing the instrumental sensitivity, we propose to sample the infrared spectrum by using several independent pump laser lines thus creating different incoherent fringe patterns. I present the temporal coherence analysis of a broadband infrared source converted by a dual-line pump laser and a method to synchronize the different fringe patterns to insure a maximum value of the contrast
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Kang, Bong-Gu, Joachim Hannawald, and Wolfgang Brameshuber. "Schallemissionsanalyse zur Untersuchung des Schädigungsverhaltens im Auszugversuch eines in Beton eingebetteten Multifilamentgarns." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1244045098499-20524.

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Zur Untersuchung der Schädigungs- und Versagensmechanismen eines in Beton eingebetteten Multifilamentgarns im Auszugversuch wurde die Schallemissionsanalyse zur Identifizierung und Lokalisierung von Filamentbrüchen eingesetzt. Im ersten Schritt wurden dazu die Schall emittierenden Ursachen (Filamentriss, Filamentablösung und Mikroriss im Beton) für eine Differenzierung charakterisiert. Es wurden Versuche zur Erzeugung von isolierten Signalen durchgeführt, welche mit Hilfe der Signal- und Frequenzanalyse untersucht wurden. Bei dem durchgeführten Garnauszugversuch konnte eine hohe Lokalisierungsgenauigkeit der Filamentbrüche erzielt werden. Der Schädigungsverlauf des Garns während des Auszugversuchs konnte detailliert untersucht werden.
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Carlqvist, Warnborg Ylva. "KASAM och stress - här och nu : Perspektiv i samtida svensk forskning som använder SOC-skalan som verktyg: en litteraturöversikt." Thesis, Högskolan i Skövde, Institutionen för hälsa och lärande, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-12493.

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Abstrakt Bakgrund: Antonovskys sense of coherence (SOC)/känsla av sammanhang (KASAM) är ett globalt använt begrepp. Mätverktyget SOC-skalan som förekommer i minst 15 olika versioner används inom många olika vetenskapliga studier. Syftet med denna litteraturöversikt är att beskriva vilka perspektiv och huvudsakliga resultat som lyfts fram i samtida svensk vetenskaplig forskning kring stress som använder SOC-begreppet och SOC-skalan. Metod: Text- och innehållsanalys av forskningsfokus och perspektiv i de senaste fem årens vetenskapliga studier kring stress och sense of coherence i Sverige. Resultat: SOC-skalan används i studier med olika design inom många olika forskningsområden. Dominerande perspektiv i samtida svensk forskning med SOC-skalan som huvudsakligt eller kompletterande verktyg är det holistiska perspektivet, individperspektivet, genusperspektivet samt föräldraperspektivet. Diskussion: SOC-skalans vetenskapliga användning speglar dagens svenska samhälls- och diskussionsklimat. SOC-skalans validitet och reliabilitet förblir föremål för diskussion, då olika versioner av SOC-skalan ger olika resultat och olika möjligheter till analys.
Abstract Background: Antonovsky’s sense of coherence (SOC) is a globally used concept. The SOC scale tool exists in at least 15 different versions and is used in many different scientific studies. The aim of this literature review is to describe which perspectives and main results are highlighted in contemporary Swedish research concerning stress that uses the SOC concept and the SOC scale. Method: Text and content analysis concerning research focus and perspectives in scientific studies concerning stress and sense of coherence in Sweden in the last five years. Results: The SOC scale is used in studies of different designs within many different fields of research. Dominating perspectives in contemporary Swedish research using the SOC scale as a main or complementary tool are the holistic perspective, the individual perspective, the gender perspective and the parental perspective. Discussion: The scientific use of the SOC scale reflects the social discussion climate in Sweden of today. The validity and reliability of the SOC scale remain subjects of discussion, as different versions of the SOC scale give different results and different analyzing possibilities.
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Haney, Derek J. "Magnetoresistivity and Quantum Criticality in Heavy Fermion Superconductor Ce1-xYbxCoIn5." Kent State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=kent1469054369.

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Isberg, Alexandra, and Susanna Lidén. "KASAM : livsfrågeformulär som intervention vid psykisk ohälsa." Thesis, University of Gävle, Department of Education and Psychology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-3708.

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Isberg, A. & Lidén, S. (2008). KASAM- livsfrågeformulär som intervention vid psykisk ohälsa. Högskolan i Gävle; Institutionen för pedagogik, didaktik och psykologi.

 

Tidigare studier visar samband mellan KASAM, Känsla av sammanhang och människors upplevda hälsa. Då psykisk ohälsa tenderar att öka växer behovet av hälsofrämjande åtgärder. I och med detta ville vi studera om KASAM- livsfrågeformulär kunde användas som intervention vid psykisk ohälsa. Studien utgår ifrån en kvalitativ ansats för att få en djupare förståelse för hur deltagarna tänker och känner. Fyra deltagare med psykisk ohälsa har fyllt i KASAM- livsfrågeformulär samt intervjuats med syfte att undersöka om KASAM- livsfrågeformulär inneburit en förändrad förståelse för deltagarnas livssituation. Resultatet visar att deltagarna upplevde att KASAM- livsfrågeformulär inneburit nya reflektioner över sig själv och sin livssituation.

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Okemuo, Gloria. "The requirement of coherence in EU external relations law and the coherence of EU external action towards Sub-Saharan Africa : Mali as a case study." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7521/.

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The principal aim of the Lisbon Treaty is to address the pre-Lisbon concerns about the coherence of EU action. In this regard, coherence is the simple litmus test for EU external action in the post-Lisbon era. This thesis investigates the coherence of EU external action towards Sub-Saharan Africa (SSA) in the post-Lisbon era in light of the requirement of coherence in EU external relations law and the introduction of the HR/VP and the EEAS in her service with the aim of enhancing coherence in EU external action. The principle of coherence governs the interaction between various policy strands of EU external action (horizontal coherence). The importance of coherence is linked to visibility and efficiency based on the effective use of EU resources, as well as to the credibility of the Union. This thesis concentrates on coherence in the interaction between EU policies towards SSA using the key EU policies towards the region namely development policy, trade policy, the CFSP and the CSDP. The regional context facilitates the analysis of the different strands of external action policies where, despite of or perhaps due to the Treaty of Lisbon, the different instruments of EU foreign policy and lines of competence demarcation between their institutions are still mired in complexity. Although the focus is on coherence, the specialised regional focus of the thesis also facilitates a broader understanding of the nuances in the implementation of EU external relations law and EU external policies in different contexts especially in the post-Lisbon era. Using Mali as a case study, the thesis submits that while it can be argued that policy coherence for development (which is a key requirement in EU external action towards SSA) cannot be certainly determined, Mali clearly illustrates incoherence vis-à-vis synergy in the sequencing of available policy options in EU external action towards SSA. The thesis also discussed the limits and prospects of coherence in EU external action despite the changes made at Lisbon.
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Amico, Isabella. "Copingstil och känsla av sammanhang : Som predikatorer för psykisk ohälsa." Thesis, Mälardalens högskola, Akademin för hälsa, vård och välfärd, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-33396.

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Psykisk ohälsa ökar och enligt socialstyrelsen lider cirka 20 % av arbetsför ålder av psykisk ohälsa. En enkätundersökning genomfördes för att undersöka, hur stor betydelse kön, ålder, coping och känsla av sammanhang har på psykisk ohälsa? Totalt insamlades 108 enkäter var av 101 användes för analys. Data analyserades med hjälp av en hierarkisk multipel regressionsanalys och Pearson korrelationer. 39 % av variationen i psykisk ohälsa förklarades av KASAM, copingstil, ålder och kön. Starkast relaterad till ohälsa i regressionsanalysen var KASAM. Högre KASAM hos en individ innebär bättre psykisk hälsa. Diskussion förs kring bland annat fördelar och nackdelar med valda instrument, sned könsfördelning, samhällsnytta och enkätkonstruktion. Att se vilka faktorer som starkt påverkar psykisk ohälsa är av betydelse för vidare forskning för att sätta fingret på vad som påverkar psykisk ohälsa och till vilken grad.
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Ibrahim, Heide [Verfasser]. "Tracking coherences in a dissipative ocean: Analysing and controlling Br2/Ar matrix / Heide Ibrahim." Berlin : Freie Universität Berlin, 2008. http://d-nb.info/1023097702/34.

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Moss, Erik, and Jimmy Kindkvist. "Flytten utan sammanhang : En kvalitativ studie om professionellas syn på ungdomar som omplaceras mellan SiS och HVB." Thesis, Karlstads universitet, Institutionen för sociala och psykologiska studier, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-39084.

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Uppsatsen handlar om tre verksamhetschefers och en behandlingsassistents uppfattningar om hur ungdomar som vistas på Hem för vård och boende (HVB)- eller Statens Institutionsstyrelse –hem (SiS, som kan använda låsbara avdelningar), påverkas av de omplaceringar som sker när ungdomen flyttar från SiS till HVB. I den här studien fokuserar vi på en specifik del i behandlingen, som kan påverka ungdomar som är vårdplacerade – omplaceringar mellan vårdboenden. Vi undersöker bland annat hur dessa omplaceringar går till/skulle kunna gå till, samt vilka anledningar som kan tänkas vara bakgrunden till att en ungdom omplaceras. Som underlag för vår studie har vi utöver litteratur och forskning inom området, genomfört fyra intervjuer med personal från HVB och SiS boenden. Vi använder anknytningsteorin och Sense of coherence modellen som teoretisk referensram. Resultatet visar att det finns brister gällande omplaceringar. Samtliga informanter önskade mer tid till förberedelserna i arbetet med ungdomen som ska flytta in. Ett önskemål vore att det från beslut till inflyttning skulle ta 3-6 månader, då det ger möjlighet för personalen på det nya boendet att besöka ungdomen och börja knyta band redan innan flytten ska genomföras. Slutsatsen blir att omplaceringen spelar roll för ungdomens behandling och vistelse på boendet. Samtidigt är det oroväckande att det saknas tydliga riktlinjer för hur dessa omplaceringar ska ske. Om mer resurser och tydligare riktlinjer kring omplaceringar gavs, kan det minska det antal omplaceringar där ungdomen tvingas flytta tillbaka till SiS. Idag får ungefär var fjärde ungdom flytta tillbaka igen.
This paper investigates the perspective of managers' and processing staffs concerning young people living on a Home for care or living(HVB)- or Institutional board of the states- home (SiS - they can use lockable departments), and how they think youths are affected by the transfer between SiS and HVB. This study focus on factors that can affect young people's health - replacing youths between different nursing homes. The paper investigates how these replacements are performed/could be performed, as well as the underlying factors that might explain why a youth is being relocated. As a basis for our study, in addition to the literature and research in the field, we have conducted four interviews with personnel from HVB- and SiS- accommodations. We use the attachment theory and the Sense of coherence theory as a theoretical frame. The results show that there are shortcomings in the process of redeployment. All informants wanted more time to prepare the work of a youth who is about to move. A proposal from the informants, was that the process from decision to the actual moving should take between 3-6 months. This would give the staff in the new accommodation a chance to visit the youth and begin to build ties, before the move is implemented. The conclusion is that the transfer has an important role in the treatment and the stay of the youth. At the same time, it is of great concern that there are no clear guidelines for how these replacements should be performed. If there would be more resources and clearer guidelines for how redeployments should be handled, it might perhaps reduce the number of shifts where young people are moving back to SiS. Today approximately one of four youth needs to move back.
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Tan, Boon Kok. "Development of coherent detector technologies for sub-millimetre wave astronomy observations." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:398fda64-e486-4917-b2e4-8e1dfe5d5c83.

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Superconductor-Insulator-Superconductor (SIS) mixers are now used regularly in sub- millimetre astronomical receivers. They have already achieved sensitivity approaching the quantum limit at frequencies below the superconducting gap of niobium (~680 GHz). Above that, the mixer performance is compromised by losses, unless materials with higher superconducting gap are employed in conjunction with the niobium tunnel junction. In this thesis, we present the development of 700 GHz niobium SIS mixers, employing a unilateral finline taper on a thin Silicon-On-Insulator (SOI) substrate. These mixers are broadband with full on-chip planar circuit integration, and require only a very simple mixer block. They were designed using rigorous 3-D electromagnetic simulator (HFSS), in conjunction with a quantum mixing software package (SuperMix), and have demonstrated good performance with the best noise temperature measured at 143 K. Our mixer devices were fed by multiple flare angle smooth-walled horns, which are easy to fabricated, yet retain the high performance of corrugated horns. The radiation patterns measured from 600–740 GHz have shown good beam circularity, low sidelobe and cross-polarization levels. In this thesis, we also present SIS mixer designs with balanced and sideband separ- ating capability. These mixers employ back-to-back finline tapers, so that the RF and local oscillator (LO) signals can be injected separately without a beam splitter. We have fabricated and tested the performance of the balanced mixers, and analysed their performance thoroughly. We have also investigated a new method of generating LO signals by beating the tones of two infrared lasers. Using the current 16-pixel 350 GHz SIS receiver, HARP-B, we have observed the 12CO J=3→2 emission lines from two nearby galaxies. An important result we found is that the 12CO J=3→2 correlates strongly with the 8 μm Polycyclic Aromatic Hydrocarbon emission.
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Books on the topic "Sum of coherence"

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Stewart, D. Coherent optical processing: The use of the ELCTV as a SLM and an application of coherent optical correlation. Manchester: UMIST, 1994.

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Tan, Boon Kok. Development of Coherent Detector Technologies for Sub-Millimetre Wave Astronomy Observations. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-19363-2.

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Stojnić, Una. Context and Coherence. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198865469.001.0001.

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Natural languages are riddled with context-sensitivity. One and the same string of words can express indefinitely many different meanings on an occasion of use. And yet we understand one another effortlessly, on the fly. What fixes the meaning of context-sensitive expressions, and how are we able to recover this meaning so quickly and without effort? This book offers a novel response: we can do so because we draw on a broad array of subtle linguistic conventions that fully determine the interpretation of context-sensitive items. Contrary to the dominant tradition, which maintains that the meaning of context-sensitive language is underspecified by grammar, and depends on non-linguistic features of utterance situation, this book argues that meaning is determined entirely by discourse conventions, rules of language that have largely been missed, and the effects of which have been mistaken for extra-linguistic effects of an utterance situation on meaning. The linguistic account of context developed in this book sheds a new light on the nature of linguistic content, and the interaction between content and context. At the same time, it provides a novel model of context that should constrain and help evaluate debates across many sub-fields of philosophy where appeal to context has been common, often leading to surprising conclusions: for example, in epistemology, ethics, value theory, metaphysics, metaethics, and logic, among others.
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Tan, Boon Kok. Development of Coherent Detector Technologies for Sub-Millimetre Wave Astronomy Observations. Springer, 2015.

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Auqui Carangui, Diego Armando, Edith Efigenia Espinoza Cabezas, Carolina Estefania Bayas Azogue, Manuel Alejandro Brito Vizuete, Jorge Humberto Calle Siguencia, Grace Pamela López Pérez, Milton Alexis Samaniego Valle, Pablo Antonio Espín De La Torre, Alexandra Tatiana Andrade Sanguil, and Argenys Michael Narvaez Rueda. Manejo de las imágenes en la práctica clínica. Diagnóstico por imagen. Mawil Publicaciones de Ecuador, 2020, 2020. http://dx.doi.org/10.26820/978-9942-826-20-6.

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La práctica médica moderna, como resultado a las invenciones en el campo tecnológico, han logrado importantes cambios en los procesos que llevan al médico a un diagnóstico preciso y coherente, encargado de darle al paciente una verdadera atención integral y así, alcanzar su incorporación en la realización de sus actividades laborales, diarias, familiares, sociales entre otros. Este nuevo concepto, se encuentra determinado por la utilización de la imagenología como básica que ayuda al especialista durante su evaluación obtiene un adecuado manejo, conoce y apoya cada día sus correctos planteamientos a realizar en los estudios realizados. En consecuencia, al lograr eficiencia en el manejo de las imágenes, las diferentes especialidades médicas se pueden ofrecer a cada paciente, nuevas oportunidades centradas en ubicar la sintomatología expuesta durante el diagnóstico clínico. Es decir, incorporar estos nuevos recursos tecnológicos facilita la respectiva valoración en cuanto a las bases físicas y técnicas de los principales métodos del diagnóstico por imágenes, lo que hace posible guiar al médico hacia las diferentes regiones topográficas del cuerpo humano, enseñando con ello, la relación anatomo imagenológica y cómo interpretarla correctamente cada uno de estos recursos pertenecientes a las imágenes médicas.
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Meléndez López, Francisco Rodrigo, Carol Yacqueline Muso Pilchisaca, Washington Ricardo Beltrán Rodríguez, Rigoberto Ignacio Tomalá Calderón, Ingrid Dora Moreno Alvarado, Alex Christopher Ruiz Arriciaga, Katherine Sofía Méndez Pereira, Jorge Saúl Sánchez Sánchez, María Belén Pachay Tapia, and Ronny Ramiro Ramos García. Introducción al diagnostico por imagen: Imagenología. Mawil Publicaciones de Ecuador, 2020, 2020. http://dx.doi.org/10.26820/978-9942-826-35-0.

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La práctica médica moderna, como resultado a las invenciones en el campo tecnológico, han logrado importantes cambios en los procesos que llevan al médico a un diagnóstico preciso y coherente, encargado de darle al paciente una verdadera atención integral y así, alcanzar su incorporación en la realización de sus actividades laborales, diarias, familiares, sociales entre otros. Este nuevo concepto, se encuentra determinado por la utilización de la imagenología como básica que ayuda al especialista durante su evaluación obtiene un adecuado manejo, conoce y apoya cada día sus correctos planteamientos a realizar en los estudios realizados. En consecuencia, al lograr eficiencia en el manejo de las imágenes, las diferentes especialidades médicas se pueden ofrecer a cada paciente, nuevas oportunidades centradas en ubicar la sintomatología expuesta durante el diagnóstico clínico. Es decir, incorporar estos nuevos recursos tecnológicos facilita la respectiva valoración en cuanto a las bases físicas y técnicas de los principales métodos del diagnóstico por imágenes, lo que hace posible guiar al médico hacia las diferentes regiones topográficas del cuerpo humano, enseñando con ello, la relación anatomo imagenológica y cómo interpretarla correctamente cada uno de estos recursos pertenecientes a las imágenes médicas.
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Sierra-Tapiro, Juan Pablo. Hacia la construcción de un Trabajo Social Crítico en Colombia. Editorial Universidad Santiago de Cali, 2019. http://dx.doi.org/10.35985/9789585522862.

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El libro nos ofrece es fruto de un esfuerzo de muchos años. Un trabajo personal pero de ningún modo individual. El lector podrá apreciar desde las primeras páginas el compromiso con que el autor busca la verdad histórica, de forma respetuosa y rigurosa, preocupado por la coherencia teórica y metodológica de sus afirmaciones sobre la realidad social contemporánea, especialmente la de su país: Colombia. El texto que sigue, tampoco es un producto endógeno del autor, “aislado". Más bien, forma parte de una totalidad mayor, de un colectivo, que actúa en su país y en la región para instaurar un debate serio y plural sobre el significado social de la profesión de Trabajo Social. No es casual que el “proceso de Reconceptualización" haya tenido un pilar fundamental en esa tierra, como lo fue el llamado “Método Caldas"
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Grijalba Carabali, Paola Andrea, Adriana Pérez Portocarrero, Jhon Fredy Salazar Riascos, and Jorge Humberto Restrepo Zapata. Guía de protocolo del síndrome de pie diabético. Editorial Universidad Santiago de Cali, 2019. http://dx.doi.org/10.35985/9789585248403.

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Como refería en su prólogo, era la culminación de un largo trabajo, que tuvo su punto de partida con la elaboración del Documento de Consenso sobre Pie Diabético que el Hospital Isaías Duarte Cancino, aprueba. En su divulgación, este Tratado ha agotado su edición inicial, y como referente útil que pretende ser, precisa de una actualización en determinados conceptos. El interés que los profesionales de la salud, en especial cirujanos vasculares venimos manifestando por la entidad patológica englobada en el concepto de “pie diabético” deriva fundamentalmente de la gravedad de sus manifestaciones clínicas, cuya expresión final, significada por la pérdida parcial o total de la extremidad, acontece en el ámbito de la práctica clínica. Las lesiones que el enfermo diabético puede llegar a desarrollar en sus extremidades inferiores a lo largo del período evolutivo de la enfermedad constituyen, sin ningún tipo de discusión, uno de los problemas asistenciales más graves, tanto desde el punto de vista personal, familiar y socio-sanitario, en el inicio del siglo XXI, en el contexto de una enfermedad como la diabetes mellitus de creciente incidencia y prevalencia. No obstante esta grave situación, las complicaciones que tienen su origen en el pie diabético han acreditado amplias y reales posibilidades de reducirse en aquellos ámbitos hospitalarios en que se han desarrollado y aplicado con rigor las pautas de prevención. Por esta razón, y a criterio de los autores de esta Tesis, únicamente podrá alcanzarse una inflexión en esta grave patología si todos los profesionales de la salud nos implicamos en los protocolos diagnósticos y terapias, pero fundamentalmente en aquellos de prevención primaria y secundaria. Por esta razón, y conscientes de que el abordaje coherente, integral y riguroso del problema del pie diabético sólo puede lograrse desde un enfoque multidisciplinario, esta Tesis reúne el aporte de expertos en ortopedia y medicina interna, medicina familiar microbiología, y cirugía vascular, con la finalidad de que el lector tenga las máximas garantías, con su lectura y consulta, de conseguir una visión unitaria del problema del pie diabético.
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García, Jorge Raúl, Federico García, and Nicolás Saraví. Sostener - Cerrar - Construir. Editorial de la Universidad Nacional de La Plata (EDULP), 2015. http://dx.doi.org/10.35537/10915/46682.

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La materialidad de un objeto arquitectónico nos habla de la consistencia de su realidad material, pero también de la manera en que ha sido ideado. Es, por lo tanto, un fenómeno constructivo y perceptivo; a la par que otorga verosimilitud y coherencia física al artefacto arquitectónico trasunta el orden intrínseco con el que se han dispuesto sus factores materiales. Ese orden intrínseco se halla presente en toda propuesta de valor, pero no es fácil asegurar su inclusión en el proceso de proyecto, y nada nos puede ahorrar el trabajoso esfuerzo de la síntesis. Por ello, el pensamiento material de la arquitectura no puede ser algo externo, añadido a posteriori, sino a la par de la construcción de un orden necesariamente global. Creemos que lo substancial de ese orden global está contenido en un eje que denominamos Sostener-Cerrar-Construir como un modo de enfatizar su vínculo con la acción concreta de proyectar. Las acciones de dicho eje, entrelazadas inextricablemente en el proceso proyectual, caracterizan la actividad fundante del proyecto de arquitectura: conciliar aquellos criterios técnicos que amalgaman de manera más genuina las intenciones con las condiciones de una problemática arquitectónica concreta.
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Sarah, Nouwen. Part III Regimes and Doctrines, Ch.36 International Criminal Law: Theory All Over the Place. Oxford University Press, 2016. http://dx.doi.org/10.1093/law/9780198701958.003.0037.

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This chapter discusses the different theories employed in the field of international criminal law, which is now increasingly supported by theory. Case theories were developed after events had taken place; operational theories were produced to match complex facts; foundational theories were created to justify existing practices; external theories tried to make sense of the phenomenon of international criminal law as it had been observed; and so did the popular theories based on everyday encounters. Ago, rather than cogito, ergo sum was the field’s implicit maxim. Against this background one still finds that factual, operational, foundational, external theories prove to be less coherent when they are considered in light of each other. Rich theories could thus emerge from more joint theorizing among those working on variably factual, operational, foundational, and external theories, between scholars and practitioners, and between scholar-theorists and quotidian theorists.
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Book chapters on the topic "Sum of coherence"

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Hillery, Mark. "Sum and Difference Squeezing." In Coherence and Quantum Optics VI, 489–92. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4613-0847-8_89.

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Kolobov, Mikhail I., Claude Fabre, Pierre Scotto, Pere Colet, and Maxi San Miguel. "Sub-diffraction-limited resolution with squeezed light." In Coherence and Quantum Optics VIII, 173–84. Boston, MA: Springer US, 2003. http://dx.doi.org/10.1007/978-1-4419-8907-9_20.

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Jakeman, Eric. "Generation, Detection and Applications of Sub-Poissonian Light." In Coherence and Quantum Optics VI, 545–51. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4613-0847-8_100.

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Brown, Robert G. W., and Matthew Daniels. "Silicon Avalanche Photodetectors for Quantum Optics Experiments: Sub-Geiger Performance." In Coherence and Quantum Optics VI, 119–21. Boston, MA: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4613-0847-8_24.

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Hodapp, T. W., M. A. Finn, G. W. Greenlees, and D. A. Lewis. "Observations of Sub-Poisson and Poisson Photon Statistics from the Fluorescence of Individual Barium Atoms." In Coherence and Quantum Optics VI, 503–7. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4613-0847-8_92.

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Jacobsson, Johanna. "Services Liberalization by Sub-Central Entities: Towards Deeper Commitments?" In Coherence and Divergence in Services Trade Law, 37–58. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-46955-9_3.

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Wild, Wolfgang. "Coherent far-infrared / sub-millimetre detectors." In Observing Photons in Space, 543–64. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-7804-1_31.

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Sugisaki, Mitsuru, Masazumi Fujiwara, Kazuhiro Yanagi, Ritsuko Fujii, Richard J. Cogdell, and Hideki Hashimoto. "Coherent Spectroscopy of Carotenoid and Bacteriochlorophyll." In Photosynthesis. Energy from the Sun, 265–68. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6709-9_59.

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Kuijpers, Jan. "Coherent Radiation From Electrostatic Double Layers." In Basic Plasma Processes on the Sun, 365–73. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0667-9_66.

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Filho, Jozue Vieira, Fabricio Guimarães Baptista, and Daniel J. Inman. "A PZT-Based Technique for SHM Using the Coherence Function." In Advanced Aerospace Applications, Volume 1, 111–18. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-9302-1_10.

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Conference papers on the topic "Sum of coherence"

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Lu, Tien-chang. "Low Coherence Flexible Perovskite Random Lasers." In 2019 IEEE Photonics Society Summer Topical Meeting Series (SUM). IEEE, 2019. http://dx.doi.org/10.1109/phosst.2019.8794942.

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Merkouche, Sofiane, and Brian J. Smith. "The POVM for two-photon detection based on sum-frequency generation." In Conference on Coherence and Quantum Optics. Washington, D.C.: OSA, 2019. http://dx.doi.org/10.1364/cqo.2019.w6a.28.

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Imany, Poolad, Mohammed S. Alshaykh, Joseph M. Lukens, Jose A. Jaramillo-Villegas, Alexandria J. Moore, Daniel E. Leaird, and Andrew M. Weiner. "Generation of a non-separable two-qudit state using a time-frequency SUM operation." In Conference on Coherence and Quantum Optics. Washington, D.C.: OSA, 2019. http://dx.doi.org/10.1364/cqo.2019.th1a.4.

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Al Mukaddim, Rashid, Ashley M. Weichmann, and Tomy Varghese. "Photoacoustic Delay-and-Sum Beamforming with Spatiotemporal Coherence Factor." In 2020 IEEE International Ultrasonics Symposium (IUS). IEEE, 2020. http://dx.doi.org/10.1109/ius46767.2020.9251373.

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Jeon, Seungwan, Eun-Yeong Park, Wonseok Choi, Ravi Managuli, Ki jong Lee, and Chulhong Kim. "Improved real-time delay-multiply-and-sum beamforming with coherence factor." In Photons Plus Ultrasound: Imaging and Sensing 2020, edited by Alexander A. Oraevsky and Lihong V. Wang. SPIE, 2020. http://dx.doi.org/10.1117/12.2543646.

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Shen, Che-Chou, and Pei-Ying Hsieh. "Low-Complexity Delay-Multiply-and-Sum (DMAS)beamforming Using Baseband Spatial Coherence." In 2018 IEEE International Ultrasonics Symposium (IUS). IEEE, 2018. http://dx.doi.org/10.1109/ultsym.2018.8579719.

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Levillain, Florent, David St-Onge, Elisabetta Zibetti, and Giovanni Beltrame. "More Than the Sum of its Parts: Assessing the Coherence and Expressivity of a Robotic Swarm." In 2018 27th IEEE International Symposium on Robot and Human Interactive Communication (RO-MAN). IEEE, 2018. http://dx.doi.org/10.1109/roman.2018.8525640.

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Song, Ke, Jian Zhan, Paul Liu, and Dongquan Liu. "Short-lag filtered-delay multiply and sum beamformer combined with sign coherence factor in ultrasound imaging." In 2021 IEEE International Conference on Power Electronics, Computer Applications (ICPECA). IEEE, 2021. http://dx.doi.org/10.1109/icpeca51329.2021.9362556.

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Yang, Guang, Eghbal Amidi, and Quing Zhu. "Photoacoustic tomography reconstruction using lag-based delay multiply and sum with coherence factor improves in vivo ovarian cancer diagnosis." In Photons Plus Ultrasound: Imaging and Sensing 2021, edited by Alexander A. Oraevsky and Lihong V. Wang. SPIE, 2021. http://dx.doi.org/10.1117/12.2576803.

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Faruk, Md Saifuddin, and Seb J. Savory. "Coherent Access: Status and Opportunities." In 2020 IEEE Photonics Society Summer Topicals Meeting Series (SUM). IEEE, 2020. http://dx.doi.org/10.1109/sum48678.2020.9161039.

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Reports on the topic "Sum of coherence"

1

Meekins, David G. Coherent pi0 Photoproduction on the Deuteron. Office of Scientific and Technical Information (OSTI), November 2004. http://dx.doi.org/10.2172/824970.

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Kabel, Andreas C. Numerical Calculation of Coherent Synchrotron Radiation Effects Using TraFiC{sub 4}. Office of Scientific and Technical Information (OSTI), September 2000. http://dx.doi.org/10.2172/764978.

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del Río, Eva. La Coherencia de Políticas para el Desarrollo Sostenible: un elemento central para la sostenibilidad ambiental en la Agenda 2030. Fundación Carolina, June 2021. http://dx.doi.org/10.33960/issn-e.1885-9119.dte4.

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El trabajo estudia la introducción de la variable medioambiental en el avance hacia modelos de desarrollo sostenible. Se plantea la hipótesis de que la Agenda 2030 es limitada en lo referente a la integración de la sostenibilidad medioambiental en sus objetivos, metas e indicadores, ya que no presta suficiente atención a la Coherencia de Políticas para el Desarrollo Sostenible (CPDS). La conceptualización de sostenibilidad que se desprende de los principales acuerdos e iniciativas internacionales para el desarrollo sostenible encaja con una mirada de sostenibilidad débil de tendencia liberal. Este enfoque implica la falta de una integración completa de las diferentes dimensiones del desarrollo y una preponderancia del desarrollo económico por encima de las cuestiones ambientales. De esta forma, no se tienen en cuenta los límites naturales del planeta a la hora de desarrollar políticas para el desarrollo, evaluar sus impactos y monitorizar el progreso internacional en este ámbito. Desde una mirada crítica pero constructiva a la Agenda 2030, se pretende constatar sus limitaciones para elaborar una futura metodología de seguimiento y evaluación que tenga en cuenta las interdependencias de las políticas de desarrollo y tenga una visión de sostenibilidad fuerte en el centro de su análisis. En este aspecto, el trabajo destaca la importancia de contar con nuevas metodologías de evaluación y seguimiento generalizables a distintos países y contextos como la iniciativa de la Coordinadora de Organizaciones para el Desarrollo para la elaboración del Índice de Coherencia de Políticas para el Desarrollo Sostenible.
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Gea, L. A., L. A. Boatner, J. D. Budai, and J. Rankin. Coherent V{sub 2}O{sub 3} precipitates in {alpha}-Al{sub 2}O{sub 3} co-implanted with vanadium and oxygen. Office of Scientific and Technical Information (OSTI), December 1994. http://dx.doi.org/10.2172/28366.

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Okorokov, V. V., and A. Yu Dubin. Coherent production of {epsilon}{sup +} particles in crystal using proton beam from SSC. Office of Scientific and Technical Information (OSTI), May 1995. http://dx.doi.org/10.2172/82528.

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Maxwell, Timothy John. Measurement of Sub-Picosecond Electron Bunches via Electro-Optic Sampling of Coherent Transition Radiation. Office of Scientific and Technical Information (OSTI), January 2012. http://dx.doi.org/10.2172/1249490.

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Martínez Parra, Marc. Los geólogos en el cine y la televisión. Personajes reales e inventados. Un análisis de su transposición a la pantalla. Ilustre Colegio Oficial de Geólogos, November 2019. http://dx.doi.org/10.21028/mmp.2019.11.20.

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Abstract:
Un análisis detallado de once geólogos con protagonismo en las pantallas grande y pequeña – diez ficticios y uno real - permitirá establecer cuanto de la imagen que se ofrece de los mismos como profesionales de la tierra está plagada de tópicos y elementos de fantaciencia y cuanto muestra verosimilitud y una cierta coherencia con la realidad.
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8

Martínez Parra, Marc. Los geólogos en el cine y la televisión. Personajes reales e inventados. Un análisis de su transposición a la pantalla. Ilustre Colegio Oficial de Geólogos, November 2019. http://dx.doi.org/10.21028/mmp.2019.11.28.

Full text
Abstract:
Un análisis detallado de once geólogos con protagonismo en las pantallas grande y pequeña – diez ficticios y uno real - permitirá establecer cuanto de la imagen que se ofrece de los mismos como profesionales de la tierra está plagada de tópicos y elementos de fantaciencia y cuanto muestra verosimilitud y una cierta coherencia con la realidad.
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9

Datz, S., P. F. Dittner, H. F. Krause, C. R. Vane, O. H. Crawford, J. S. Forster, G. S. Ball, W. G. Davies, and J. S. Geiger. Resonant coherent excitation of N{sup 6+} and Mg{sup 11+} in planar channeling: Anisotropies in ionization probabilities and x-ray emission. Office of Scientific and Technical Information (OSTI), December 1994. http://dx.doi.org/10.2172/10118120.

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10

Savedoff, Bill, Diana Pinto, and Laura Goyeneche. Convivir con el coronavirus: ¿Cómo pueden las pruebas y el rastreo de contactos frenar la pandemia? Inter-American Development Bank, February 2021. http://dx.doi.org/10.18235/0003047.

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Abstract:
Las pruebas y el rastreo de contactos son la columna vertebral de una respuesta eficaz del sistema de salud ante una epidemia. Sin embargo, en el caso del COVID-19, aunque la comunidad científica desarrolló pruebas de diagnóstico tan pronto se reconoció la amenaza pandémica, su producción se retrasó y la mayoría de los países no implementaron pruebas en cantidades suficientes o dentro de una estrategia nacional coherente. El objetivo del presente documento es identificar las estrategias exitosas en el uso de pruebas y el rastreo de contactos para informar a las políticas que puedan implementar los países de América Latina y el Caribe para desacelerar y controlar la pandemia. Se dan énfasis en las políticas de menor costo y las que toman en cuenta restricciones de recursos o en la oferta de insumos diagnósticos.
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