Bibliographies thématiques / Line shape analysis

Littérature scientifique sur le sujet « Line shape analysis »

Auteur : Grafiati
Publié le 11 mars 2023

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Articles de revues sur le sujet "Line shape analysis"

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XU WEI, WAN BAO-NIAN, LI JIAN-GANG, FANG TONG-ZHENG, FANG ZI-SHENG et XIE JI-KANG. « ANALYSIS OF Hα LINE SHAPE ». Acta Physica Sinica 46, no 7 (1997) : 1360. http://dx.doi.org/10.7498/aps.46.1360.

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Dattagupta, Sushanta. « Anderson and Line Shape Analysis ». Resonance 25, no 8 (août 2020) : 1117–25. http://dx.doi.org/10.1007/s12045-020-1027-6.

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Thurgate, Stephen M., et Ganesh N. Raikar. « Auger line shape analysis of Zn3P2 ». Applied Surface Science 26, no 1 (juin 1986) : 51–60. http://dx.doi.org/10.1016/0169-4332(86)90052-8.

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Wei, Xu, et Li Yan. « Analysis of Hα(Dα) Line Shape ». Journal of Astrophysics and Astronomy 35, no 3 (septembre 2014) : 555–58. http://dx.doi.org/10.1007/s12036-014-9285-x.

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Sundius, T. « Raman line shape analysis by numerical convolution ». Journal of Molecular Structure 175 (mai 1988) : 319–22. http://dx.doi.org/10.1016/s0022-2860(98)80095-1.

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Ma, Yue, et Guo-Ying Chen. « Structure of Xb from line shape analysis ». Modern Physics Letters A 31, no 05 (5 février 2016) : 1650035. http://dx.doi.org/10.1142/s0217732316500358.

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We study the production line shape of [Formula: see text] near threshold, where the [Formula: see text] pair comes from the resonance [Formula: see text]. Our study shows that the line shape depends sensitively on the binding energy and the probability of finding an elementary state in the physical bound state. Both of the two parameters are crucial to identify the structure of [Formula: see text]. Therefore, the line shape measurement can shed light on the structure of [Formula: see text].
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Bolotov, B. M., D. A. Aksenov, A. I. Polyakov et S. P. Senshin. « NMR Line Shape Function Analysis in Solids ». physica status solidi (b) 139, no 2 (1 février 1987) : K137—K140. http://dx.doi.org/10.1002/pssb.2221390239.

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North, Simon W., Xiaonan S. Zheng, Ruian Fei et Gregory E. Hall. « Line shape analysis of Doppler broadened frequency‐modulated line spectra ». Journal of Chemical Physics 104, no 6 (8 février 1996) : 2129–35. http://dx.doi.org/10.1063/1.470969.

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Wang, Zeshen, et Jean-Claude Müller. « Line Generalization Based on Analysis of Shape Characteristics ». Cartography and Geographic Information Systems 25, no 1 (janvier 1998) : 3–15. http://dx.doi.org/10.1559/152304098782441750.

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Guo, Qi, Philip Pagano, Yun-Liang Li, Amnon Kohen et Christopher M. Cheatum. « Line shape analysis of two-dimensional infrared spectra ». Journal of Chemical Physics 142, no 21 (7 juin 2015) : 212427. http://dx.doi.org/10.1063/1.4918350.

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Thèses sur le sujet "Line shape analysis"

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Gopinath, Sudhir. « Using Color and Shape Analysis for Boundary Line Extraction in Autonomous Vehicle Applications ». Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/35015.

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Autonomous vehicles are the subject of intense research because they are a safe and convenient alternative to present-day vehicles. Human drivers base their navigational decisions primarily on visual information and researchers have been attempting to use computers to do the same. The current challenge in using computer vision lies not in the collection or transmission of visual data, but in the perception of visual data to extract from it useful information. The focus of this thesis is on the use of computer vision to navigate an autonomous vehicle that will participate in the Intelligent Ground Vehicle Competition (IGVC.) This document starts with a description of the IGVC and the software design of an autonomous vehicle. This thesis then focuses on the weakest link in the system - the computer vision module. Vehicles at the IGVC are expected to autonomously navigate an obstacle course. Competing vehicles need to recognize and stay between lines painted on grass or pavement. The research presented in this document describes two methods used for boundary line extraction: color-based object extraction, and shape analysis for line recognition. This is the first time a combination of these methods is being applied to the problem of line recognition in the context of the IGVC. The most significant contribution of this work is a method for extracting lines in a binary image even when the line is attached to a shape that is not a line. Novel methods have been used to simplify camera calibration, and for perspective correction of the image. The results give promise of vastly improved autonomous vehicle performance.
Master of Science
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Katamine, Eiji, Hideyuki Azegami et Akiyoshi Okitsu. « Shape Optimization Analysis of Flow Field : Growth-Strain Method Approach ». 日本機械学会, 1994. http://hdl.handle.net/2237/12157.

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Hodson, Joshua D. « Numerical Analysis and Spanwise Shape Optimization for Finite Wings of Arbitrary Aspect Ratio ». DigitalCommons@USU, 2019. https://digitalcommons.usu.edu/etd/7574.

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This work focuses on the development of efficient methods for wing shape optimization for morphing wing technologies. Existing wing shape optimization processes typically rely on computational fluid dynamics tools for aerodynamic analysis, but the computational cost of these tools makes optimization of all but the most basic problems intractable. In this work, we present a set of tools that can be used to efficiently explore the design spaces of morphing wings without reducing the fidelity of the results significantly. Specifically, this work discusses automatic differentiation of an aerodynamic analysis tool based on lifting line theory, a light-weight gradient-based optimization framework that provides a parallel function evaluation capability not found in similar frameworks, and a modification to the lifting line equations that makes the analysis method and optimization process suitable to wings of arbitrary aspect ratio. The toolset discussed is applied to several wing shape optimization problems. Additionally, a method for visualizing the design space of a morphing wing using this toolset is presented. As a result of this work, a light-weight wing shape optimization method is available for analysis of morphing wing designs that reduces the computational cost by several orders of magnitude over traditional methods without significantly reducing the accuracy of the results.
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Wang, Tao-Chin Lin. « Part I : Dispersion versus absorption (DISPA) line shape analysis. Part II : Ion trajectories and excitation techniques in fourier transform ion cyclotron mass spectrometry / ». The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487260135355759.

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Tam, Kwong-chuk Stephen. « Determination of C=N bond isomerisation mechanisms in 2, 6-dimethyl-4-aryliminopyrans and their salts by VTNMR using complete line-shape analysis / ». [Hong Kong : University of Hong Kong], 1988. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12366572.

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COGLIATI, CLELIA. « NMR study of chicken Liver Bile Acid Binding Protein : interaction and dynamics ». Doctoral thesis, Università degli Studi di Verona, 2010. http://hdl.handle.net/11562/343942.

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Il principale obiettivo di questo lavoro di tesi è lo studio del ruolo giocato da un ponte disolfuro sulle proprietà di legame di una proteina citosolica, la Liver Bile Acid Binding Protein (L-BABP), nella quale è naturalmente presente. In particolare si vuole far luce sulle capacità della proteina di legare Acidi Biliari (BA) e sulle sue proprietà funzionali. Gli acidi biliari circolano tra il fegato e l’intestino attraverso un meccanismo definito “circolazione enteroepatica”, il quale è fortemente regolato dagli stessi acidi biliari. Gli acidi biliari sono infatti in grado di influenzare l’espressione di numerosi geni coinvolti nella loro sintesi e nel loro trasporto, mediante un legame con recettori di acidi biliari intracellulari primari, quali il recettore farnesoide X (FXR). La comprensione del meccanismo che regola l’interazione di trasportatori intracellulari con acidi biliari è un passaggio chiave per la costruzione di un modello rappresentativo del trasferimento di BAs dal citoplasma al nucleo e potrebbe essere utilizzato per lo studio di agenti terapeutici applicabili nel trattamento di disordini metabolici, quali l’obesità, il diabete di tipo 2, l’iperlipidemia e l’aterosclerosi. Per raggiungere una dettagliata descrizione dal punto di vista molecolare e della dinamica coinvolta nella formazione di un complesso ternario, tra L-BABP e due molecole di acidi biliari, è stata utilizzata la spettroscopia NMR (Nuclear Magnetic Resonance), parallelamente ad un’analisi cinetica e termodinamica, specificatamente implementata per questi studi. Nello specifico, mediante la Risonanza Magnetica Nucleare, sono state studiate le proprietà strutturali, di interazione e di dinamica di due forme di L-BABP di pollo, diverse tra loro per la presenza/assenza di un ponte disolfuro. Le interazioni proteina/ligando caratteristiche del complesso sono state studiate arricchendo alternativamente la proteina ed il ligando, con isotopi NMR attivi. La proteina è stata titolata aggiungendo concentrazioni sempre crescenti dell’acido glico-colico (GCA) e glico-chenodeossicolico (GCDA), arricchiti in 15N, in modo da poter seguire la variazione delle loro risonanze attraverso l’acquisizione e l’analisi di numerosi spettri NMR (HSQC, DOSY). I dati ottenuti hanno permesso di determinare la stechiometria di legame e i fenomeni di scambio, ma non sono risultati sufficienti per ricavare informazioni dettagliate sull’affinità, la cooperatività e i meccanismi di legame. Si è quindi deciso di analizzare la variazione dei segnali NMR in funzione della concentrazione di ligando per fare maggiore chiarezza sul meccanismo di interazione tra L-BABP e gli acidi biliari. A questo scopo, sono stati recentemente riportati, nuovi approcci NMR per lo studio delle interazioni proteina/ligandi che avvengono nella scala dei tempi dei micro- e millisecondi, che sfruttano l’analisi delle larghezze di riga ed esperimenti di “relaxation dispersion”. In particolare la combinazione di questi due approcci di indagine si sono rivelati utili per la comprensione della relazione esistente tra dinamica e funzione della proteina. Studi di rilassamento 15N, effettuati sulla proteina apo, hanno rivelato la presenza di moti lenti, nella scala dei tempi de micro- millisecondi. La principale domanda a cui si vuole rispondere è se tali moti sono essenziali per il legame con gli acidi biliari, se portano a conformazioni competenti all’inserimento dei ligandi e se sono influenzati dalla presenza del ponte disolfuro. L’analisi delle larghezze di riga, estratte dagli esperimenti di titolazione, effettuati sulla proteina arricchita isotopicamente in 15N, con successive aggiunte di GCDA, e gli esperimenti di “relaxation dispersion” hanno permesso di individuare un meccanismo di legame a più stadi e di ricavare alcune delle costanti cinetiche coinvolte.
The aim of this thesis is to understand the role played by a naturally occurring disulphide bridge on the bile acid (BA) binding and functional properties of cytosolic Liver Bile Acid Binding Protein (L-BABP). Bile acids circulate between liver and intestine through a mechanism defined as “enterohepatic circulation”, which is a tightly regulated process, particularly by BAs themselves. Indeed BAs are able to influence the expression of numerous genes involved in their synthesis and transport by binding to the primary intracellular nuclear bile acid receptor, farnesoid X receptor (FXR). Understanding the mechanism regulating the interactions of intracellular carriers with bile acid is a key step to provide a model for the transfer of BAs from cytoplasm to the nucleus and can be used to inspire design of therapeutic agents in the treatment of metabolic disorders, such as obesity, type 2 diabetes, hyperlipidaemia and atherosclerosis. To achieve a detailed molecular and dynamical description of the binding mechanism driving to the formation of the ternary complex of L-BABPs with two BA molecules, spectroscopic methods together with kinetic and thermodynamic analysis have been applied and implemented. In particular structural, dynamical and interaction properties of two forms of chicken L-BABP (cL-BABP), differing by the presence/absence of a naturally occurring disulphide bridge, have been investigated through nuclear magnetic resonance (NMR) approaches. The study of protein-ligand interactions by NMR was performed analysing complexes where, alternatively, either the protein or the ligand were isotopically labelled. 15N enriched glycocholic (GCA) and glycochenodeoxycholic acid (GCDA), two of the most important members of bile salts pool, were employed for protein titrations and their resonances followed through the acquisition and analysis of several NMR experiments (HSQC, DOSY). The obtained results shed light on binding stoichiometry and ligand exchange phenomena but were not sufficient to derive detailed information on affinity, cooperativity and binding mechanism. Thus NMR lineshape analysis as a function of ligand concentration was chosen as an appropriate tool to investigate the complex interaction mechanism within the cL-BABP/BA system. In this line, new NMR approaches have been recently described which allow a reliable and sensitive investigation of ligand binding events occurring on microsecond to millisecond (μs-ms) time scales using lineshape and relaxation dispersion experiments[1]. Particularly, the combination of these NMR methods can be useful in the study of complex multi-step mechanisms, allowing the correlation between protein dynamics and function[2]. 15N relaxation studies, performed on the apo-protein, revealed the presence of slow motions occurring on the microseconds-milliseconds timescale. The central question to be addressed is here whether these motions are essential for ligand uptake, how they can eventually lead to conformations competent for binding and how they are influenced by the presence of the disulfide bridge. The analysis of titration experiments of 15N labelled protein with unlabelled GCDA through lineshape analysis and relaxation dispersion allowed to define a multi-step binding mechanism for bile salt binding to liver BABPs and to provide an estimate of the kinetics involved.
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Werkander, Harstäde Carina. « Guilt and shame in end-of-life care : the next-of-kin's perspectives ». Doctoral thesis, Linnéuniversitetet, Institutionen för hälso- och vårdvetenskap, HV, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-23637.

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Aim: The overall aim of the thesis was to explore and describe the concepts of guilt and shame and gain a greater understanding of the next-of-kin’s experiences of guilt and shame in end-of-life care. Methods: Study I was a qualitative secondary analysis of 47 interviews with next-of-kin searching for experiences of guilt and shame. In study II a semantic concept analysis of the two concepts guilt and shame was performed. In studies III and IV a hermeneutic approach inspired by Gadamer was used to analyze next-of-kin’s experiences of guilt (Study III), and shame (Study IV) in end-of-life care. Main findings: The concept of guilt focus on behaviour and the concept of shame on the influence on the self.  The situation of being next-of-kin in end-of-life care involves a commitment to make the remaining time for the loved one as good as possible. When, for some reason, the commitment cannot be accomplished there is a risk that the next-of-kin experience guilt such as not having done enough, not having been together during important events, not having talked enough to each other, or not having done the right things. Aspects such as not having fulfilled a commitment, omission, and being the cause of can be present in these experiences. The guilt experience has a focus on what the next-of-kin has, or has not done. The experiences of shame are also linked to a perception that the remaining time for the loved one should be as good as possible. Shame can occur when the next-of-kin is involved and actually causes harm to the loved one as well as in situations that are beyond their control. Shame that the next-of-kin experience can also emanate from being put in situations by other people. Feelings of inferiority and powerlessness, second order shame, and family conflicts that are brought into the open are experiences of shame found in the studies as well as ignominy, humiliation, and disgrace. The shame experience has a focus on the next-of-kin’s self. Conclusion: The situation of being next-of-kin in end-of-life care is complex and demanding, something that health professionals should be aware of. Acknowledgement of experiences of guilt and shame can help the next-of-kin in their adaptation to the end-of-life situation as a whole and maybe also give useful tools to support next-of-kin during bereavement.
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Shimomura, Koichiro. « Quantitative trait locus analysis of agronomic traits in weedy cucumber lines for breeding ». Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263362.

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Scott-Wilson, Lorne Harvey. « Equipping christians by identifying their calling : an evaluation of Rick Warren's 'Shape' analysis ». Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-06192009-172945.

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Cooper, Jasmin. « Life cycle sustainability assessment of shale gas in the UK ». Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/life-cycle-sustainability-assessment-of-shale-gas-in-the-uk(692252b3-faab-4428-899c-afbcdeec787a).html.

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This research assesses the impacts of developing shale gas in the UK, with the focus of determining whether or not it is possible to develop it sustainably and how it could affect the electricity and gas mix. There is much uncertainty on the impacts of developing shale gas in the UK, as the country is currently in the early stages of exploration drilling and the majority of studies which have been carried out to analyse the effects of shale gas development have been US specific. To address these questions, the environmental, economic and social sustainability have been assessed and the results integrated to evaluate the overall sustainability. The impacts of shale gas electricity have been assessed so that it can be compared with other electricity generation technologies (coal, nuclear, renewables etc.), to ascertain its impacts on the UK electricity mix. Life cycle assessment is used to evaluate the environmental sustainability of shale gas electricity (and other options), while life cycle costing and social sustainability assessment have been used to evaluate the economic and social sustainability. Multi-criteria decision analysis has been used to combine the results of three to evaluate the overall sustainability. The incorporation of shale gas into the UK electricity mix is modelled in two future scenarios for the year 2030. The scenarios compare different levels of shale gas penetration: low and high. The results show that shale gas will have little effect on improving the environmental sustainability and energy security of the UK’s electricity mix, but could help ease energy prices. In comparison with other options, shale gas is not a sustainable option, as it has higher environmental impacts than the non-fossil fuels and conventional gas and liquefied natural gas: 460 g CO2-Eq. is emitted from the shale gas electricity life cycle, while conventional gas emits 420 g CO2-Eq. and wind 12 g CO2-Eq. The power plant and drilling fluid are the main impact hot spots in the life cycle, while hydraulic fracturing contributes a small amount (5%). In addition to this, there are a number of social barriers which need to be addressed, notably: traffic volume and congestion could increase by up to 31%, public support is low and wastewater produced from hydraulic fracturing could put strain on wastewater treatment facilities. However, the results indicate that shale gas is economically viable, as the cost of electricity is cheaper than solar photovoltaic, biomass and hydroelectricity (9.59 p/kWh vs 16.90, 11.90 and 14.40 p/kWh, respectively). The results of this thesis show that there is a trade-off in the impacts, but because of its poor environmental and social ratings shale gas is not the best option for UK electricity. The results also identify areas for improvement which should be targeted, as well as policy recommendations for best practice and regulation if shale gas were to be developed in the UK.
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Livres sur le sujet "Line shape analysis"

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H, Tipping R., et United States. National Aeronautics and Space Administration., dir. An improved quasistatic line-shape theory : The effect of molecular motion on the line wings. [Washington, D.C : National Aeronautics and Space Administration, 1994.

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L, Krainsky I., et United States. National Aeronautics and Space Administration., dir. Auger spectroscopy of hydrogenated diamond surfaces. [College Park, Md.] : American Physical Society, 1997.

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A, Ventrice Carl, et United States. National Aeronautics and Space Administration., dir. Investigation of the collision line broadening problem as applicable to the NASA Optical Plume Anomaly Detection (OPAD) system, phase I : Final report. Cookeville, Tenn : Center for Electric Power, Tennessee Technological University, 1995.

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Marco, Zoppi, et Ulivi Lorenzo, dir. Spectral line shapes. Woodbury, New York : American Institute of Physics, 1997.

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Lothar, Frommhold, et Keto John W, dir. Spectral line shapes. New York : American Institute of Physics, 1990.

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International, Conference on Spectral Line Shapes (14th 1998 State College Pennsylvania). Spectral line shapes. Woodbury, New York : American Institute of Physics, 1999.

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Ala.) International Conference on Spectral Line Shapes (18th 2006 Auburn. Spectral line shapes : 18th International Conference on Spectral Line Shapes, Auburn, Alabama, 4-9 June 2006. Sous la direction de Oks, E. A. (Evgeniĭ Aleksandrovich), Pindzola M. S et American Institute of Physics. Melville, N.Y : American Institute of Physics, 2006.

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International Conference on Spectral Line Shapes. (9th 1988 Toruń, Poland). Spectral line shapes : Proceedings of the Ninth International Conference on Spectral Line Shapes, Toruń, Poland, 25-29 July 1988. Amsterdam : Elsevier, 1989.

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International Conference on Spectral Line Shapes (12th 1994 Toronto, Ont.). Spectral line shapes. : 12th ICSLS, Toronto, Canada, June 1990. Sous la direction de May A. David, Drummond J. R et Oks E. A. New York : American Institute of Physics, 1995.

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C, Lewis John K., Predoi-Cross Adriana 1967- et American Institute of Physics, dir. 20th International Conference on Spectral Line Shapes : St. John's, Newfoundland, Canada, 6-11 June 2010. Melville, N.Y : American Institute of Physics, 2010.

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Chapitres de livres sur le sujet "Line shape analysis"

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Umbaugh, Scott E. « Edge, Line and Shape Detection ». Dans Digital Image Processing and Analysis, 151–212. 4e éd. Boca Raton : CRC Press, 2022. http://dx.doi.org/10.1201/9781003221135-4.

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Liu, Rujie, Yuehong Wang, Takayuki Baba et Daiki Masumoto. « Shape Detection from Line Drawings by Hierarchical Matching ». Dans Computer Analysis of Images and Patterns, 922–29. Berlin, Heidelberg : Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03767-2_112.

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Loheider, S., I. Petscherizin, M. Soltwisch, J. Sukmanowski, G. Vögler et D. Quitmann. « Line Shape Analysis of Brillouin Spectra from Glassforming Liquids ». Dans Springer Proceedings in Physics, 211–15. Berlin, Heidelberg : Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-93419-3_28.

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Kawai, Jun, Katsumi Nakajima, Kuniko Maeda et Yohichi Gohshi. « L X-Ray Line Shape of Copper(II) Compounds and Their Covalency ». Dans Advances in X-Ray Analysis, 1107–14. Boston, MA : Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3460-0_52.

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De Stefano, Claudio, Marco Garruto, Luis Lapresa et Angelo Marcelli. « Using Strings for On-Line Handwriting Shape Matching : A New Weighted Edit Distance ». Dans Image Analysis and Processing – ICIAP 2005, 1125–32. Berlin, Heidelberg : Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11553595_138.

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Carvalho, C. M. A., B. L. S. Porto, B. V. M. Rodrigues et T. O. Mendes. « Line Shape Analysis of Cortisol Infrared Spectra for Salivary Sensors : Theoretical and Experimental Observations ». Dans XXVII Brazilian Congress on Biomedical Engineering, 1121–27. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-70601-2_168.

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Werncke, W., M. Pfeiffer, A. Lau et T. Hasche. « Quantitative Determination of the X (3)-Dispersion of Conjugated Polymers by Resonance CARS Line Shape Analysis ». Dans Electronic Properties of Polymers, 213–16. Berlin, Heidelberg : Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-84705-9_39.

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Hess, Samuel T., Manasa V. Gudheti, Michael Mlodzianoski et Tobias Baumgart. « Shape Analysis of Giant Vesicles With Fluid Phase Coexistence by Laser Scanning Microscopy to Determine Curvature, Bending Elasticity, and Line Tension ». Dans Methods in Membrane Lipids, 367–87. Totowa, NJ : Humana Press, 2007. http://dx.doi.org/10.1007/978-1-59745-519-0_25.

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Frucci, M., et A. Marcelli. « Line representation of elongated shapes ». Dans Computer Analysis of Images and Patterns, 643–48. Berlin, Heidelberg : Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/3-540-60268-2_358.

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Garrett, Steven L. « Membranes, Plates, and Microphones ». Dans Understanding Acoustics, 283–330. Cham : Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44787-8_6.

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Abstract The restoring forces on membranes are due to the applied tension, while the restoring forces for plates are due to the flexural rigidity of the plate’s material. The transition to two dimensions introduces some features that did not show up in our analysis of one-dimensional vibrating systems. Instead of applying boundary conditions at one or two points, those constraints will have to be applied along a line or a curve. In this way, incorporation of the boundary condition is linked inexorably to the choice of coordinate systems used to describe the resultant normal mode shape functions. For two-dimensional vibrators, two indices are required to specify the frequency of a normal mode, fm,n, with the number of modes in a given frequency interval increasing in proportion to the center frequency of the interval, even though that interval remains a fixed frequency span. It is also possible that modes with different mode numbers might correspond to the same frequency of vibration, a situation that is designated as “modal degeneracy.” A membrane’s response to sound pressures provides the basis for broadband condenser microphone technology that produces signals related to the electrical properties of that capacitor and the charge stored on its plates.
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Actes de conférences sur le sujet "Line shape analysis"

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Godbert-Mouret, L. « Line Shape Analysis of Particle Dynamics in Tokamak Edge Plasmas ». Dans SPECTRAL LINE SHAPES. AIP, 2002. http://dx.doi.org/10.1063/1.1525432.

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Rosmej, F. B., P. Angelo, Y. Aouad, Marco Antonio Gigosos et Manuel Ángel González. « Contour shape analysis of hollow ion x-ray emission ». Dans SPECTRAL LINE SHAPES : Volume 15–19th International Conference on Spectral Line Shapes. AIP, 2008. http://dx.doi.org/10.1063/1.3026478.

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Coito, Susana. « Line-shape analysis of charmonium resonances ». Dans XVII International Conference on Hadron Spectroscopy and Structure. Trieste, Italy : Sissa Medialab, 2018. http://dx.doi.org/10.22323/1.310.0030.

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Rowan, William L., I. O. Bespamyatnov et R. V. Bravenec. « Shear Stabilization of Turbulence in Tokamaks : An Application for Line Shape Analysis of Impurity Spectra Excited by Interaction with a Hydrogen Neutral Beam ». Dans SPECTRAL LINE SHAPES : 18th International Conference on Spectral Line Shapes. AIP, 2006. http://dx.doi.org/10.1063/1.2402780.

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Menasri, F., F. Menasri, N. Vincent, N. Vincent, M. Cheriet, M. Cheriet, E. Augustin et E. Augustin. « Shape-Based Alphabet for Off-line Arabic Handwriting Recognition ». Dans Ninth International Conference on Document Analysis and Recognition (ICDAR 2007) Vol 2. IEEE, 2007. http://dx.doi.org/10.1109/icdar.2007.4377059.

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Himisch, Jan. « Winglet Shape and Load Optimization with a Numerically Supported Lifting Line Method ». Dans 12th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. Reston, Virigina : American Institute of Aeronautics and Astronautics, 2008. http://dx.doi.org/10.2514/6.2008-5902.

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Milosavljević, Vladimir. « Plasma Diagnostics Through Analysis of Ne I Line Shape Characteristics ». Dans THE PHYSICS OF IONIZED GASES : 22nd Summer School and International Symposium on the Physics of Ionized Gases ; Invited Lectures, Topical Invited Lectures and Progress Reports. AIP, 2004. http://dx.doi.org/10.1063/1.1843518.

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Siyuan Chen et S. Srihari. « Use of exterior contours and shape features in off-line signature verification ». Dans Eighth International Conference on Document Analysis and Recognition (ICDAR'05). IEEE, 2005. http://dx.doi.org/10.1109/icdar.2005.249.

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Langerak, Thomas R., Joris S. M. Vergeest et Yu Song. « Parameterising Styling Lines for Reverse Design Using Free Form Shape Analysis ». Dans ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-84391.

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Styling lines are elongated areas of abrupt curvature that have some meaning for the styling of a shape. Although many methods have been developed to extract these lines on a purely geometrical level, few methods exist to give the user the control of modifying such a styling line on a higher level of abstraction. In this paper, a method is proposed for the automatic extraction of control elements from free form shapes. These control elements are: the trajectory curve, which lies along the direction of the styling line, and the profile curve, which lies perpendicular to the styling line in the area in which the styling line is embedded. These control elements are simple, intuitive handles for modifying the styling line, which can be controlled by the user in a simple sketching action. The extraction method makes use of curvature analysis, and finds critical points where the curvature has an extreme. By setting several parameters, the user is able to control the extraction method to fine-tune it according to his/her wishes. The method is demonstrated on the digital representation of a computer mouse and is discussed for use in the parameterisation of other features.
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Campbell, I. H., et P. M. Fauchet. « Raman line shape in semiconductor microcrystals ». Dans OSA Annual Meeting. Washington, D.C. : Optica Publishing Group, 1985. http://dx.doi.org/10.1364/oam.1985.fr2.

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Microcrystal sizes below 100 Å can in principle be easily measured from an analysis of the Raman-Stokes line shape. Richter et al.1 have shown that the confinement of phonons inside silicon grains of spherical shape leads to downshifting, broadening, and asymmetrization of the Raman line. In their model, phonons with finite wave vectors contribute to the line through an uncertainty principle argument. For the phonon envelope function, Richter selected a Gaussian whose magnitude is one-half at the grain boundary. We have now calculated the Stokes line for various microcrystalline semi-conductors as a function of grain size, assuming different envelope functions, and in particular that predicted by a simple theory. In silicon, we obtain significant departures from the size which can be deduced from Richter’s calculations. This may explain the often observed discrepancy between Raman and TEM results.2 In addition, we have calculated the Stokes line for various shapes, including columnar grains. These calculations are compared to measurements that we performed in various microcrystalline films having spherical or columnar grains. Finally, we discuss the influence of surface phonons, intragrain defects, and grain boundary material.
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Rapports d'organisations sur le sujet "Line shape analysis"

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Howard, Paul L., Brian Roylance, John Reintjes et Abe Schultz. New Dimensions in Oil Debris Analysis - the Automated, Real Time, On Line Analysis of Debris Particle Shape. Fort Belvoir, VA : Defense Technical Information Center, janvier 1998. http://dx.doi.org/10.21236/ada347676.

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Sherman, Amir, Rebecca Grumet, Ron Ophir, Nurit Katzir et Yiqun Weng. Whole genome approach for genetic analysis in cucumber : Fruit size as a test case. United States Department of Agriculture, décembre 2013. http://dx.doi.org/10.32747/2013.7594399.bard.

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The Cucurbitaceae family includes a broad array of economically and nutritionally important crop species that are consumed as vegetables, staple starches and desserts. Fruit of these species, and types within species, exhibit extensive diversity as evidenced by variation in size, shape, color, flavor, and others. Fruit size and shape are critical quality determinants that delineate uses and market classes and are key traits under selection in breeding programs. However, the underlying genetic bases for variation in fruit size remain to be determined. A few species the Cucurbitaceae family were sequenced during the time of this project (cucumber was already sequenced when the project started watermelon and melon sequence became available during the project) but functional genomic tools are still missing. This research program had three major goals: 1. Develop whole genome cucumber and melon SNP arrays. 2. Develop and characterize cucumber populations segregating for fruit size. 3. Combine genomic tools, segregating populations, and phenotypic characterization to identify loci associated with fruit size. As suggested by the reviewers the work concentrated mostly in cucumber and not both in cucumber and melon. In order to develop a SNP (single nucleotide polymorphism) array for cucumber, available and newly generated sequence from two cucumber cultivars with extreme differences in shape and size, pickling GY14 and Chinese long 9930, were analyzed for variation (SNPs). A large set of high quality SNPs was discovered between the two parents of the RILs population (GY14 and 9930) and used to design a custom SNP array with 35000 SNPs using Agilent technology. The array was validated using 9930, Gy14 and F1 progeny of the two parents. Several mapping populations were developed for linkage mapping of quantitative trait loci (QTL) for fruit size These includes 145 F3 families and 150 recombinant inbred line (RILs F7 or F8 (Gy14 X 9930) and third population contained 450 F2 plants from a cross between Gy14 and a wild plant from India. The main population that was used in this study is the RILs population of Gy14 X 9930. Phenotypic and morphological analyses of 9930, Gy14, and their segregating F2 and RIL progeny indicated that several, likely independent, factors influence cucumber fruit size and shape, including factors that act both pre-anthesis and post-pollination. These include: amount, rate, duration, and plane of cell division pre- and post-anthesis and orientation of cell expansion. Analysis of F2 and RIL progeny indicated that factors influencing fruit length were largely determined pre-anthesis, while fruit diameter was more strongly influenced by environment and growth factors post-anthesis. These results suggest involvement of multiple genetically segregating factors expected to map independently onto the cucumber genome. Using the SNP array and the phenotypic data two major QTLs for fruit size of cucumber were mapped in very high accuracy (around 300 Kb) with large set of markers that should facilitate identification and cloning of major genes that contribute to fruit size in cucumber. In addition, a highly accurate haplotype map of all RILS was created to allow fine mapping of other traits segregating in this population. A detailed cucumber genetic map with 6000 markers was also established (currently the most detailed genetic map of cucumber). The integration of genetics physiology and genomic approaches in this project yielded new major infrastructure tools that can be used for understanding fruit size and many other traits of importance in cucumber. The SNP array and genetic population with an ultra-fine map can be used for future breeding efforts, high resolution mapping and cloning of traits of interest that segregate in this population. The genetic map that was developed can be used for other breeding efforts in other populations. The study of fruit development that was done during this project will be important in dissecting function of genes that that contribute to the fruit size QTLs. The SNP array can be used as tool for mapping different traits in cucumber. The development of the tools and knowledge will thus promote genetic improvement of cucumber and related cucurbits.
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Clark, Andrew E., Angela Greulich et Hippolyte d’Albis. The age U-shape in Europe : the protective role of partnership. Verlag der Österreichischen Akademie der Wissenschaften, mars 2021. http://dx.doi.org/10.1553/populationyearbook2021.res3.1.

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In this study, we ask whether the U-shaped relationship between life satisfactionand age is flatter for individuals who are partnered. An analysis of cross-sectionalEU-SILC data indicates that the decline in life satisfaction from the teens to thefifties is almost four times larger for non-partnered than for partnered individuals,whose life satisfaction essentially follows a slight downward trajectory with age.However, the same analysis applied to three panel datasets (BHPS, SOEP andHILDA) reveals a U-shape for both groups, albeit somewhat flatter for the partneredthan for the non-partnered individuals. We suggest that the difference between thecross-sectional and the panel results reflects compositional effects: i.e., there isa significant shift of the relatively dissatisfied out of marriage in mid-life. Thesecompositional effects tend to flatten the U-shape in age for the partnered individualsin the cross-sectional data.
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Clark, C. E., J. Han, A. Burnham, J. B. Dunn et M. Wang. Life-cycle analysis of shale gas and natural gas. Office of Scientific and Technical Information (OSTI), janvier 2012. http://dx.doi.org/10.2172/1044520.

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Hacker, Elizabeth, et Ranjama Sharma. Life Stories From Kathmandu’s Adult Entertainment Sector : Told and Analysed by Children and Young People. Institute of Development Studies, décembre 2022. http://dx.doi.org/10.19088/clarissa.2022.005.

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Child Labour: Action-Research-Innovation in South and South-Eastern Asia (CLARISSA) has a participatory and child-centred approach that supports children to gather evidence, analyse it themselves and generate solutions to the problems they identify. The life story collection and collective analysis processes supported children and young people involved in the worst forms of child labour in Kathmandu to share and analyse their life stories. Four hundred life stories were collected and then analysed by children and young people engaged in and affected by the worst forms of child labour, including those who had previously been life storytellers and/or life story collectors. The data was collectively analysed using causal mapping, resulting in children’s life stories becoming the evidence base for revealing the macro-level system dynamics that drive the worst forms of child labour. This paper is a record of the children and young people’s analysis of the life stories and the key themes they identified, which formed the basis of a series of eight child-led Participatory Action Research groups based in Kathmandu.
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Galili, Naftali, Roger P. Rohrbach, Itzhak Shmulevich, Yoram Fuchs et Giora Zauberman. Non-Destructive Quality Sensing of High-Value Agricultural Commodities Through Response Analysis. United States Department of Agriculture, octobre 1994. http://dx.doi.org/10.32747/1994.7570549.bard.

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The objectives of this project were to develop nondestructive methods for detection of internal properties and firmness of fruits and vegetables. One method was based on a soft piezoelectric film transducer developed in the Technion, for analysis of fruit response to low-energy excitation. The second method was a dot-matrix piezoelectric transducer of North Carolina State University, developed for contact-pressure analysis of fruit during impact. Two research teams, one in Israel and the other in North Carolina, coordinated their research effort according to the specific objectives of the project, to develop and apply the two complementary methods for quality control of agricultural commodities. In Israel: An improved firmness testing system was developed and tested with tropical fruits. The new system included an instrumented fruit-bed of three flexible piezoelectric sensors and miniature electromagnetic hammers, which served as fruit support and low-energy excitation device, respectively. Resonant frequencies were detected for determination of firmness index. Two new acoustic parameters were developed for evaluation of fruit firmness and maturity: a dumping-ratio and a centeroid of the frequency response. Experiments were performed with avocado and mango fruits. The internal damping ratio, which may indicate fruit ripeness, increased monotonically with time, while resonant frequencies and firmness indices decreased with time. Fruit samples were tested daily by destructive penetration test. A fairy high correlation was found in tropical fruits between the penetration force and the new acoustic parameters; a lower correlation was found between this parameter and the conventional firmness index. Improved table-top firmness testing units, Firmalon, with data-logging system and on-line data analysis capacity have been built. The new device was used for the full-scale experiments in the next two years, ahead of the original program and BARD timetable. Close cooperation was initiated with local industry for development of both off-line and on-line sorting and quality control of more agricultural commodities. Firmalon units were produced and operated in major packaging houses in Israel, Belgium and Washington State, on mango and avocado, apples, pears, tomatoes, melons and some other fruits, to gain field experience with the new method. The accumulated experimental data from all these activities is still analyzed, to improve firmness sorting criteria and shelf-life predicting curves for the different fruits. The test program in commercial CA storage facilities in Washington State included seven apple varieties: Fuji, Braeburn, Gala, Granny Smith, Jonagold, Red Delicious, Golden Delicious, and D'Anjou pear variety. FI master-curves could be developed for the Braeburn, Gala, Granny Smith and Jonagold apples. These fruits showed a steady ripening process during the test period. Yet, more work should be conducted to reduce scattering of the data and to determine the confidence limits of the method. Nearly constant FI in Red Delicious and the fluctuations of FI in the Fuji apples should be re-examined. Three sets of experiment were performed with Flandria tomatoes. Despite the complex structure of the tomatoes, the acoustic method could be used for firmness evaluation and to follow the ripening evolution with time. Close agreement was achieved between the auction expert evaluation and that of the nondestructive acoustic test, where firmness index of 4.0 and more indicated grade-A tomatoes. More work is performed to refine the sorting algorithm and to develop a general ripening scale for automatic grading of tomatoes for the fresh fruit market. Galia melons were tested in Israel, in simulated export conditions. It was concluded that the Firmalon is capable of detecting the ripening of melons nondestructively, and sorted out the defective fruits from the export shipment. The cooperation with local industry resulted in development of automatic on-line prototype of the acoustic sensor, that may be incorporated with the export quality control system for melons. More interesting is the development of the remote firmness sensing method for sealed CA cool-rooms, where most of the full-year fruit yield in stored for off-season consumption. Hundreds of ripening monitor systems have been installed in major fruit storage facilities, and being evaluated now by the consumers. If successful, the new method may cause a major change in long-term fruit storage technology. More uses of the acoustic test method have been considered, for monitoring fruit maturity and harvest time, testing fruit samples or each individual fruit when entering the storage facilities, packaging house and auction, and in the supermarket. This approach may result in a full line of equipment for nondestructive quality control of fruits and vegetables, from the orchard or the greenhouse, through the entire sorting, grading and storage process, up to the consumer table. The developed technology offers a tool to determine the maturity of the fruits nondestructively by monitoring their acoustic response to mechanical impulse on the tree. A special device was built and preliminary tested in mango fruit. More development is needed to develop a portable, hand operated sensing method for this purpose. In North Carolina: Analysis method based on an Auto-Regressive (AR) model was developed for detecting the first resonance of fruit from their response to mechanical impulse. The algorithm included a routine that detects the first resonant frequency from as many sensors as possible. Experiments on Red Delicious apples were performed and their firmness was determined. The AR method allowed the detection of the first resonance. The method could be fast enough to be utilized in a real time sorting machine. Yet, further study is needed to look for improvement of the search algorithm of the methods. An impact contact-pressure measurement system and Neural Network (NN) identification method were developed to investigate the relationships between surface pressure distributions on selected fruits and their respective internal textural qualities. A piezoelectric dot-matrix pressure transducer was developed for the purpose of acquiring time-sampled pressure profiles during impact. The acquired data was transferred into a personal computer and accurate visualization of animated data were presented. Preliminary test with 10 apples has been performed. Measurement were made by the contact-pressure transducer in two different positions. Complementary measurements were made on the same apples by using the Firmalon and Magness Taylor (MT) testers. Three-layer neural network was designed. 2/3 of the contact-pressure data were used as training input data and corresponding MT data as training target data. The remaining data were used as NN checking data. Six samples randomly chosen from the ten measured samples and their corresponding Firmalon values were used as the NN training and target data, respectively. The remaining four samples' data were input to the NN. The NN results consistent with the Firmness Tester values. So, if more training data would be obtained, the output should be more accurate. In addition, the Firmness Tester values do not consistent with MT firmness tester values. The NN method developed in this study appears to be a useful tool to emulate the MT Firmness test results without destroying the apple samples. To get more accurate estimation of MT firmness a much larger training data set is required. When the larger sensitive area of the pressure sensor being developed in this project becomes available, the entire contact 'shape' will provide additional information and the neural network results would be more accurate. It has been shown that the impact information can be utilized in the determination of internal quality factors of fruit. Until now,
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Cannon, Mariah, et Pauline Oosterhoff. Bonded : Life Stories from Agricultural Communities in South-Eastern Nepal. Institute of Development Studies (IDS), juin 2021. http://dx.doi.org/10.19088/clarissa.2021.003.

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In the Terai region of South-Eastern Nepal, there persists a form of agricultural bonded labour called Harwa-Charwa, rooted in agricultural feudal social relations. The Terai has a long and dynamic political history with limited employment opportunities and high levels of migration. This paper is an external qualitative analysis of over 150 life stories from individuals living in an area with high levels of bonded labour. These stories were previously analysed during a workshop through a collective participatory analysis. Both the participatory analysis and external analysis found similar mechanisms that trap people in poverty and bonded labour. The disaggregation by age in the external analysis could explain why child marriage and child labour were very important in the collective analysis but did not match the results of a baseline survey in the same geographical area that found only a few cases. The respondents were aged between 15 and 65. Child marriage and child labour had shaped the lives of the adults but have since decreased. Methodologically, the different ways of analysis diverge in their ability to differentiate timelines. The participatory analysis gives historical insights on pathways into child labour, but although some of the social norms persist this situation has changed.
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Walker, Jo, Matthew Martin, Emma Seery, Nabil Abdo, Anthony Kamande et Max Lawson. The Commitment to Reducing Inequality Index 2022. Development Finance International, Oxfam, octobre 2022. http://dx.doi.org/10.21201/2022.9325.

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The 2022 Commitment to Reducing Inequality (CRI) Index is the first detailed analysis published looking at governments’ policies and actions to fight inequality during the first two years of the pandemic. This fourth edition of the CRI Index reviews the spending, tax and labour policies and actions of 161 governments during 2020–2022. COVID-19 has increased inequality worldwide, as the poorest people were hit hardest by both the disease and its profound economic impacts. Yet the CRI 2022 Index shows clearly that most of the world’s governments failed to mitigate this dangerous rise in inequality. Despite the biggest global health emergency in a century, half of low-and lower-middle-income countries saw the share of health spending fall during the pandemic, half of the countries tracked by the CRI Index cut the share of social protection spending, 70% cut the share of education spending, while two-thirds of countries failed to increase their minimum wage in line with gross domestic product (GDP). Ninety-five percent of countries failed to increase taxation of the richest people and corporations. At the same time, a small group of governments from across the world bucked this trend, taking clear actions to combat inequality, putting the rest of the world to shame. See also the CRI Index website: www.inequalityindex.org
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Artana, Daniel, Cynthia Moskovits, Jorge Puig et Ivana Templado. Fiscal Rules and the Behavior of Public Investment in Latin America and the Caribbean : Towards Growth-Friendly Fiscal Policy ? : The case of Argentina. Inter-American Development Bank, février 2021. http://dx.doi.org/10.18235/0003057.

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This paper analyzes the implementation of Fiscal Rules (FR) in Argentina. Several clear attempts to establish a FR at the national level are identified. The analysis suggests that the environment matters. The only FR that was binding in the period was approved in 2004 during an economic boom, with the country under a program with the IMF and with high political support. During the world financial crisis the expenditure ceilings were relaxed, however, and current primary expenditures soared. Simulations show that a countercyclical fund could have been implemented even after reducing highly distorting taxes at the federal and provincial levels, and at the same time securing a high level of capital expenditure as a share of GDP, had Argentina complied with the 2004 FR. Moreover, an econometric exploration of the link between flexible FRs and public investment finds that a flexible FR helps to mitigate the negative effects of fiscal consolidations on provincial public investment. Based on the previous analysis, guidelines for a proposal for a FR in Argentina are provided.
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Matsuo, Hideko, et Koen Matthijs. The life course and subjective well-being across generations – an analysis based on cross-national surveys (2002–2016). Verlag der Österreichischen Akademie der Wissenschaften, juillet 2021. http://dx.doi.org/10.1553/populationyearbook2021.res4.2.

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This paper identifies subjective well-being trajectories through happiness measures as influenced by time, socio-economic, demographic and behavioural determinants. Hierarchical age-period-cohort models are applied to European Social Survey (2002–2016) data on the population aged 30 and older in 10 countries. A U-shaped relationship between age and happiness is found for some countries, but a rather flat pattern and considerable diversity beyond age 80 are detected for other countries. Lower happiness levels are found for baby boomers (1945–1964) than for preboomers and post-boomers, and also for late boomers (1955–1964) than for early boomers (1945–1954). Women, highly educated and native people are shown to have higher happiness levels than men, less educated and non-native people, respectively. Moreover, a positive assessment of income, having a partner, and being a parent, in good health, employed and socially active are all found to have a positive impact on happiness levels. We find evidence of gaps in happiness levels due to differences in socio-economic characteristics over the life course in some, but not in all of the countries analysed.
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