Bibliografias temáticas / Pattern-Based Corrections

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Literatura científica selecionada sobre o tema "Pattern-Based Corrections"

Autor: Grafiati

Publicado: 12 de abril de 2025

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Artigos de revistas sobre o assunto "Pattern-Based Corrections"

Schulze, Hans-Henning, Andreas Cordes e Dirk Vorberg. "Keeping Synchrony While Tempo Changes: Accelerando and Ritardando". Music Perception 22, n.º 3 (2005): 461–77. http://dx.doi.org/10.1525/mp.2005.22.3.461.

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We studied synchronization with a metronome that smoothly changes tempo, from slow to fast (accelerando) or from fast to slow (ritardando). During the transition phase, systematic alternations of underadjustment and overadjustment of period and phase were observed. We analyzed the synchronization error (�asynchrony�) sequences in terms of two models that both assume linear period and phase correction mechanisms but differ in terms of how the timekeeper period is adjusted to the tempo change. In the interval-based model, period corrections are based on comparisons between timekeeper and metronome intervals, whereas in the asynchrony-based model, period corrections are based on the deviations of taps from metronome events. The qualitative data pattern is more compatible with an asynchrony-based model than with an interval-based model. Additional mechanisms that switch on and off period adjustment seem to be needed, however, for a quantitative fit of this model to our data.

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Tippett, Michael K., Anthony G. Barnston, David G. DeWitt e Rong-Hua Zhang. "Statistical Correction of Tropical Pacific Sea Surface Temperature Forecasts". Journal of Climate 18, n.º 23 (1 de dezembro de 2005): 5141–62. http://dx.doi.org/10.1175/jcli3581.1.

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Abstract This paper is about the statistical correction of systematic errors in dynamical sea surface temperature (SST) prediction systems using linear regression approaches. The typically short histories of model forecasts create difficulties in developing regression-based corrections. The roles of sample size, predictive skill, and systematic error are examined in evaluating the benefit of a linear correction. It is found that with the typical 20 yr of available model SST forecast data, corrections are worth performing when there are substantial deviations in forecast amplitude from that determined by correlation with observations. The closer the amplitude of the uncorrected forecasts is to the optimum squared error-minimizing amplitude, the less likely is a correction to improve skill. In addition to there being less “room for improvement,” this rule is related to the expected degradation in out-of-sample skill caused by sampling error in the estimate of the regression coefficient underlying the correction. Application of multivariate [canonical correlation analysis (CCA)] correction to three dynamical SST prediction models having 20 yr of data demonstrates improvement in the cross-validated skills of tropical Pacific SST forecasts through reduction of systematic errors in pattern structure. Additional beneficial correction of errors orthogonal to the CCA modes is achieved on a per-gridpoint basis for features having smaller spatial scale. Until such time that dynamical models become freer of systematic errors, statistical corrections such as those shown here can make dynamical SST predictions more skillful, retaining their nonlinear physics while also calibrating their outputs to more closely match observations.

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Oinonen, M., P. Pesonen e M. Tallavaara. "Archaeological Radiocarbon Dates for Studying the Population History in Eastern Fennoscandia". Radiocarbon 52, n.º 2 (2010): 393–407. http://dx.doi.org/10.1017/s0033822200045446.

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In this work, archaeological radiocarbon data gathered from eastern Fennoscandia have been scrutinized to discuss their suitability for studies of population history. The temporal distribution of the archaeological 14C dates has been analyzed against possible research priorities and sample material deterioration. An outstanding “Stone Age” maximum has been observed in practically all the displayed temporal date distributions. The pattern remains the same throughout the history of 14C dating in Finland. Due to sample material differences, equal taphonomic corrections based on 14C-dated volcanic deposits cannot account for all the sample degradation effects; therefore, material-dependent correction procedures are suggested.

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Jalilov, Ya R., V. Q. Verdiyev e T. Y. Jalilov. "Application of Cross-Section Corrective («Translation») Forces at Surgical Treatment for Scoliosis". N.N. Priorov Journal of Traumatology and Orthopedics 19, n.º 3 (15 de setembro de 2012): 14–19. http://dx.doi.org/10.17816/vto20120314-19.

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Surgical treatment results for 53 patients with III—IV stage of scoliosis are presented. In all patients original endocorrector has been applied. Endocorrector is based on the application of cross-section corrective («translation effect») forces that enable to shift the vertebrae of the main scoliotic arch to the median line of the trunk. Endocorrector was the most effective in curvature arch under 75° and provided 35—45° correction. Mathematic modeling of a situation «endocor- rector—curved spine» was performed as well as the pattern of forces created by endocorrector and participated in the scoliotic deformity correction was studied. Surgical intervention enabled to achieve stable fixation of the spine with its sagittal contours preservation. At long-term follow up (1—6 years) loss of correction did not exceed 8—10°. In scoliosis with arch over 75° step-by- step corrections were performed and loss of correction could make up 15°.

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Akmal, Fachrurrozy. "PENOLOGI PENGAYOMAN". Khatulistiwa Law Review 1, n.º 1 (15 de abril de 2020): 39–60. http://dx.doi.org/10.24260/klr.v1i1.36.

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This study aims to analyze the punishment pattern in the national penal system. This is a consequence of the involvement of science in the penal concept in Indonesia with a focus of research to understand the role of science in addressing the challenges related to policymaking, fostering treatment, as well as prisoner guidance which is carried out by the technical implementation unit (UPT) within the Directorate General of Corrections. Based on the analysis, the method used in this paper is juridical normative with positive legal approaches and descriptive-analytical research. The discussion in this paper states that punishment pattern in Indonesia refers to the principle of protection that functions in providing a sense of security for all parties both perpetrators of crime, victims and especially the community. The principle of punishment in the protection always seeks to see the success of a pattern of treatment within the framework of behavioral change of a person's criminality before the reintegration into society. Leadership and power of correctional institutions in the concept of aegis penology are oriented to the creation of productive and democratic spaces. The success of leadership in a punishment process is also determined by the transparency of the discourses. The presence of science in treatment and guidance aims to prevent fallacy such as a tendency in the generalization of different prisoner characters in the correctional process. Besides, the presence of knowledge in the guidance determines the pattern and appropriate treatment to correctional clients.

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Sulchan, Achmad, Akhmad Khisni e Aryani Witasari. "FAIR INMATE COACHING PATTERNS (A STUDY IN CORRECTIONAL INSTITUTION OF KEDUNGPANE SEMARANG)". Jurnal Pembaharuan Hukum 7, n.º 1 (3 de abril de 2020): 57. http://dx.doi.org/10.26532/jph.v7i1.11124.

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Correctional Institutions have a very strategic task as the most potential place in realizing the objectives of punishment with coaching. However, this cannot be realized without the awareness of the inmates themselves. To realize this, the Correctional Institution functions as an educational institution that provides useful training for inmates to create, produce, and excel. They have the same opportunity as other community members to be able to contribute as active and productive community members in development. Inmate coaching must also be beneficial for the person concerned during his/her imprisonment at the Correctional Institution of Kedungpane, Semarang, and after completing the imprisonment, returning to the community. Thus, the fair coaching pattern of inmates is implemented with the correctional system and, basically, a situation/condition that allows for the realization of correctional objectives in accordance with the definition of coaching i.e. the process carried out by the Correctional Institution to inmates. For better and fairer coaching without any discrimination, the Corrections Institution should carry out its main duties as stipulated in the "Ten Correctional Principles". This study is based on the legal positivism concept, which states that norms are written, made and promulgated by state authorities, and uses a qualitative method to produce a description of the fair coaching pattern at the Correctional Institution of Kedungpane, Semarang.

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Druyan, Leonard, e Matthew Fulakeza. "Downscaling Atmosphere-Ocean Global Climate Model Precipitation Simulations over Africa Using Bias-Corrected Lateral and Lower Boundary Conditions". Atmosphere 9, n.º 12 (12 de dezembro de 2018): 493. http://dx.doi.org/10.3390/atmos9120493.

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A prequel study showed that dynamic downscaling using a regional climate model (RCM) over Africa improved the Goddard Institute for Space Studies Atmosphere-Ocean Global Climate Model (GISS AOGCM: ModelE) simulation of June–September rainfall patterns over Africa. The current study applies bias corrections to the lateral and lower boundary data from the AOGCM driving the RCM, based on the comparison of a 30-year simulation to the actual climate. The analysis examines the horizontal pattern of June–September total accumulated precipitation, the time versus latitude evolution of zonal mean West Africa (WA) precipitation (showing monsoon onset timing), and the latitude versus altitude cross-section of zonal winds over WA (showing the African Easterly Jet and the Tropical Easterly Jet). The study shows that correcting for excessively warm AOGCM Atlantic sea-surface temperatures (SSTs) improves the simulation of key features, whereas applying 30-year mean bias corrections to atmospheric variables driving the RCM at the lateral boundaries does not improve the RCM simulations. We suggest that AOGCM climate projections for Africa should benefit from downscaling by nesting an RCM that has demonstrated skill in simulating African climate, driven with bias-corrected SST.

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Paulik, Róbert, Miklós Kozlovszky e Béla Molnár. "Regression Based Iterative Illumination Compensation Method for Multi-Focal Whole Slide Imaging System". Sensors 21, n.º 21 (26 de outubro de 2021): 7085. http://dx.doi.org/10.3390/s21217085.

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Image quality, resolution and scanning time are critical in digital pathology. In order to create a high-resolution digital image, the scanner systems execute stitching algorithms to the digitized images. Due to the heterogeneity of the tissue sample, complex optical path, non-acceptable sample quality or rapid stage movement, the intensities on pictures can be uneven. The evincible and visible intensity distortions can have negative effect on diagnosis and quantitative analysis. Utilizing the common areas of the neighboring field-of-views, we can estimate compensations to eliminate the inhomogeneities. We implemented and validated five different approaches for compensating output images created with an area scanner system. The proposed methods are based on traditional methods such as adaptive histogram matching, regression-based corrections and state-of-the art methods like the background and shading correction (BaSiC) method. The proposed compensation methods are suitable for both brightfield and fluorescent images, and robust enough against dust, bubbles, and optical aberrations. The proposed methods are able to correct not only the fixed-pattern artefacts but the stochastic uneven illumination along the neighboring or above field-of-views utilizing iterative approaches and multi-focal compensations.

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Jiang, Wenbin, Jie Zhang e Lee Bell. "3D seismic geometry quality control and corrections by applying machine learning". GEOPHYSICS 84, n.º 6 (1 de novembro de 2019): P87—P96. http://dx.doi.org/10.1190/geo2018-0617.1.

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Seismic geometry quality control (QC) and corrections are crucial but labor-intensive steps in seismic data preprocessing. Current methods to estimate the correct positions of sources and receivers are usually based on the first-break traveltimes, which may contain large errors, thereby affecting the accuracy of the results. We have applied a deep convolutional neural network to identify shots and receivers that have position error, and we searched for the correct position. Once an error in position is identified by scanning data, a grid search for the correct location is conducted and the result is evaluated by the system until an optimal position is found. The network is trained on 3200 training sets from real data that have been corrected by the traditional method. Through cross validation on 800 sets, the classifier achieves a precision of 99.5% and a recall rate of 1. The final errors between the true positions and corrected positions are less than 10% of the shot spacing. An uncorrected real data experiment reveals that the proposed machine-learning method for geometry QC and correction provides similar results to the conventional manual correction approach but without human interference. Because the wavefield pattern of the training data for this purpose is global, there is no need to train the system again when applying the method to correct receiver position or process another data set. This claim is verified with different real data.

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Puaschunder, Julia. "Value at looking back:Towards an empirical validation of the role of reflexivity in econo-historic backtesting:Economic market prediction corrections correlate with future market performance". ACRN Journal of Finance and Risk Perspectives 8, n.º 1 (2019): 223–39. http://dx.doi.org/10.35944/jofrp.2019.8.1.014.

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The following article innovatively paints a novel picture of the mass psychological underpinnings of business cycles based on information flows in order to recommend how certain communication strategies could counterweight and alleviate information failing market performance expectations that could potentially build disastrous financial market mass movements of booms and busts. An introduction to the history of economic cycles will lead to George Soros’ Theory of Reflexivity in order to draw inferences for the analysis of the role of information in creating economic booms and busts in the age of globalization. Empirically, based on a central European central bank’s GNP projections and backtesting corrections, a pattern of central bank corrections communication and economic market performance will be unraveled for the first time to outline that central bank market prediction corrections are positively correlated with near future market performances and negatively correlated with distant future market performances. The collective reality of prices and the irrationality of the crowds perturbating markets will be discussed. Business cycles are argued to obey some kind of natural complexity, as for being influenced by econo-historic communication trends. Recommendations how to create more stable economic systems by avoiding emergent risks in communicating market prospects more cautiously will be given in the discussion followed by a prospective future research outlook and conclusion.

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Mais fontes

Teses / dissertações sobre o assunto "Pattern-Based Corrections"

Kady, Charbel. "Managing Business Process Continuity and Integrity Using Pattern-Based Corrections". Electronic Thesis or Diss., IMT Mines Alès, 2024. http://www.theses.fr/2024EMAL0014.

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Cette thèse présente une approche pour la gestion des déviations dans les flux de travail utilisant le Business Process Model and Notation (BPMN). La recherche répond au besoin de gestion efficace des déviations en intégrant un cadre complet comprenant la correction des déviations basée sur des modèles et un mécanisme enrichi de State Token. L’approche est testée par une étude de cas dans le domaine de l’apiculture, démontrant l’applicabilité pratique et l’efficacité de la méthode proposée. Les contributions clés incluent le développement d’une bibliothèque de modèles, la caractérisation des éléments BPMN et un mécanisme pour aider à la prise de décision dans la gestion des déviations. Les résultats montrent que l’approche peut corriger efficacement les déviations, assurant la continuité et l’intégrité du flux de travail
This thesis presents an approach to managing deviations in Business Process Model and Notation (BPMN) workflows. The research addresses the critical need for effective deviation management by integrating a comprehensive framework that includes pattern-based deviation correction and an enriched State Token mechanism. The approach is tested through a case study in the apiculture domain, demonstrating the practical applicability and effectiveness of the proposed method. Key contributions include the development of a library of patterns, the characterization of BPMN elements, and a mechanism to help decision-making in addressing deviations. The results show that the approach can efficiently correct deviations, ensuring workflow continuity and integrity

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Tran, Hoang Tung. "Automatic tag correction in videos : an approach based on frequent pattern mining". Thesis, Saint-Etienne, 2014. http://www.theses.fr/2014STET4028/document.

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Nous présentons dans cette thèse un système de correction automatique d'annotations (tags) fournies par des utilisateurs qui téléversent des vidéos sur des sites de partage de documents multimédia sur Internet. La plupart des systèmes d'annotation automatique existants se servent principalement de l'information textuelle fournie en plus de la vidéo par les utilisateurs et apprennent un grand nombre de "classifieurs" pour étiqueter une nouvelle vidéo. Cependant, les annotations fournies par les utilisateurs sont souvent incomplètes et incorrectes. En effet, un utilisateur peut vouloir augmenter artificiellement le nombre de "vues" d'une vidéo en rajoutant des tags non pertinents. Dans cette thèse, nous limitons l'utilisation de cette information textuelle contestable et nous n'apprenons pas de modèle pour propager des annotations entre vidéos. Nous proposons de comparer directement le contenu visuel des vidéos par différents ensembles d'attributs comme les sacs de mots visuels basés sur des descripteurs SIFT ou des motifs fréquents construits à partir de ces sacs. Nous proposons ensuite une stratégie originale de correction des annotations basées sur la fréquence des annotations des vidéos visuellement proches de la vidéo que nous cherchons à corriger. Nous avons également proposé des stratégies d'évaluation et des jeux de données pour évaluer notre approche. Nos expériences montrent que notre système peut effectivement améliorer la qualité des annotations fournies et que les motifs fréquents construits à partir des sacs de motifs fréquents sont des attributs visuels pertinents
This thesis presents a new system for video auto tagging which aims at correcting the tags provided by users for videos uploaded on the Internet. Most existing auto-tagging systems rely mainly on the textual information and learn a great number of classifiers (on per possible tag) to tag new videos. However, the existing user-provided video annotations are often incorrect and incomplete. Indeed, users uploading videos might often want to rapidly increase their video’s number-of-view by tagging them with popular tags which are irrelevant to the video. They can also forget an obvious tag which might greatly help an indexing process. In this thesis, we limit the use this questionable textual information and do not build a supervised model to perform the tag propagation. We propose to compare directly the visual content of the videos described by different sets of features such as SIFT-based Bag-Of-visual-Words or frequent patterns built from them. We then propose an original tag correction strategy based on the frequency of the tags in the visual neighborhood of the videos. We have also introduced a number of strategies and datasets to evaluate our system. The experiments show that our method can effectively improve the existing tags and that frequent patterns build from Bag-Of-visual-Words are useful to construct accurate visual features

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Torle, Petter. "Scene-based correction of image sensor deficiencies". Thesis, Linköping University, Department of Electrical Engineering, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1752.

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This thesis describes and evaluates a number of algorithms for reducing fixed pattern noise in image sequences. Fixed pattern noise is the dominantnoise component for many infrared detector systems, perceived as a superimposed pattern that is approximately constant for all image frames.

Primarily, methods based on estimation of the movement between individual image frames are studied. Using scene-matching techniques, global motion between frames can be successfully registered with sub-pixel accuracy. This allows each scene pixel to be traced along a path of individual detector elements. Assuming a static scene, differences in pixel intensities are caused by fixed pattern noise that can be estimated and removed.

The algorithms have been tested by using real image data from existing infrared imaging systems with good results. The tests include both a two-dimensional focal plane array detector and a linear scanning one-dimensional detector, in different scene conditions.

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Cusumano, Carl Joseph. "Assessment of Residual Nonuniformity on Hyperspectral Target Detection Performance". University of Dayton / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1565137429596905.

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Capítulos de livros sobre o assunto "Pattern-Based Corrections"

Bougleux, Sébastien, Benoit Gaüzère e Luc Brun. "A Hungarian Algorithm for Error-Correcting Graph Matching". In Graph-Based Representations in Pattern Recognition, 118–27. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-58961-9_11.

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Dongardive, Prakash. "Online Journals". In Advances in Library and Information Science, 83–93. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-4070-2.ch007.

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Electronic information is gaining more importance in academic activities with the extreme change in the pattern of dissemination of knowledge. Web technology provides dynamism to the electronic documents that were not possible in essentially sequential style of presentation of printed documents. Interactive hyperlinks to related resources, links to full range of multimedia, links to traditional indexing and abstracting services, etc. are some of the novelties that are common place in a Web document and that were not possible in a traditional printed document. Web publishers or e-journal publishers claim heavy investments. Publishers create not only bit-map page image but also HTML and PDF formats to provide added advantages for their electronic journals. Electronic journals can provide linking citations and references to bibliographic databases or to full-text articles (where possible), links to graphics/photographs, video or audio clippings not included in the paper, links to corrections or to articles cited in the paper, access to more detailed data or to multimedia information provided by the author, links to external databases, links to reader comments or discussion forums related to the paper, “dual publishing” in more than one electronic journal (e.g. a chemistry article of interest to biologists could appear both in a chemistry and a biology journal), a “living article” where the user could log in at any time and see an experiment on an ongoing basis showing data collected that day, embedded software programs allowing users to mirror the authors’ work by manipulating data or running simulations based on their own input.

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Kozlowski Janusz, Serra Giovanni, Merolli Antonio e Guidi Pier Luigi. "Technical Improvement of CPT (Complex Phase Tracing) Profilometry in Scoliosis". In Studies in Health Technology and Informatics. IOS Press, 1999. https://doi.org/10.3233/978-1-60750-903-5-194.

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The prototype of a portable instrument for shape measurement and analysis of the human back has been developed. The new principle applied for fringe pattern analysis is based on the registration of two mutually out-of-phase patterns, use of die Fourier transform with corrected intrinsic border-errors and on fringe pattern demodulation based on Complex Phase Tracing method. The software includes correction of distortion of the observation lens, data calibration, three-dimensional Z-axis rotation of the patient normalizing his position, calculus of the curvature map (second derivative) enabling precise indication of the PSIS points, color-map and contour representation of die calculated 3D form as well as calculus and presentation of the natural image of die patient.

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Ma, Yuchi, Xiaotong Huang, Yinuo Tian, Yucheng Wang e Zhuo Li. "Automatic Design Method of Urban Cold Landscape Based on Pix2Pix and StyleGAN". In Frontiers in Artificial Intelligence and Applications. IOS Press, 2025. https://doi.org/10.3233/faia250377.

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In order to solve the problem that the traditional optimization method of spatial structure of cold landscape pattern has poor aggregation effect, an automatic design method of urban cold landscape based on Pix2Pix and StyleGAN is proposed. In this paper, by constructing an optimization model, calculating fitness, correcting fitness through niche technology, and then using the proportion of fitness to cross and mutate individuals. After obtaining the high-quality population, the maximum coordination index is obtained through individual exchange, and the design and implementation of spatial structure optimization method of cold landscape pattern based on niche genetic algorithm are completed. The experimental results show that when optimizing the spatial structure of urban cold landscape pattern, the urban cold landscape aggregation index of traditional method 1 and traditional method 2 is lower than that of the proposed method in three optimization periods, which shows that the proposed method can successfully optimize the spatial structure of urban cold landscape pattern, and the optimization index is close to 1 at the highest. Conclusion: Compared with the traditional method, the proposed method based on niche genetic algorithm has better convergence effect and higher effectiveness in optimizing the spatial structure of urban cold landscape pattern.

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Senkul, Pinar, Nilufer Onder, Soner Onder, Engin Maden e Hui Meen Nyew. "Discovering Patterns for Architecture Simulation by Using Sequence Mining". In Pattern Discovery Using Sequence Data Mining, 212–36. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-61350-056-9.ch013.

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The goal of computer architecture research is to design and build high performance systems that make effective use of resources such as space and power. The design process typically involves a detailed simulation of the proposed architecture followed by corrections and improvements based on the simulation results. Both simulator development and result analysis are very challenging tasks due to the inherent complexity of the underlying systems. The motivation of this work is to apply episode mining algorithms to a new domain, architecture simulation, and to prepare an environment to make predictions about the performance of programs in different architectures. We describe our tool called Episode Mining Tool (EMT), which includes three temporal sequence mining algorithms, a preprocessor, and a visual analyzer. We present empirical analysis of the episode rules that were mined from datasets obtained by running detailed micro-architectural simulations.

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Dwivedi, Dwijendra Nath, e Ghanashyama Mahanty. "Temporal Analysis of Tourism Arrivals". In Advances in Hospitality, Tourism, and the Services Industry, 407–22. IGI Global, 2024. http://dx.doi.org/10.4018/979-8-3693-3715-8.ch022.

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This research conducts a detailed study on the timing of tourism arrivals in different countries using an advanced multi-country time series method. Our study attempts to reveal patterns and trends in visitor arrivals to nations over the last twenty years, considering the dynamic nature of the tourism industry and its significant impact on national economies. We have used sophisticated time series clustering methods to classify counties into three separate clusters based on the pattern in visitor arrivals throughout the specified timeframe.We use several time series data processing techniques such as normalization, detrending, and seasonality correction to make sure the clustering findings are comparable and reliable. The study's results provide important information for policymakers, tourist marketers, and stakeholders in the tourism industry. This data can be used to develop strategic plans, allocate resources effectively, and create focused promotional campaigns to support sustainable tourism growth.

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Fauzi Usama Juniansyah, Koseki Junichi, Miyashita Yukika, Hoshino Ryoichiro e Nawir Hasbullah. "Local deformation measurement using image analysis technique in hollow cylindrical torsional shear test". In Advances in Soil Mechanics and Geotechnical Engineering. IOS Press, 2015. https://doi.org/10.3233/978-1-61499-601-9-519.

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A special image analysis technique is presented to improve local deformation measurement of sand specimen in hollow cylindrical torsional shear test. This technique involves the use of a latex membrane with dots marked in a grid pattern with approximately 5 mm spacing. These dots are tracked using a digital camera that synchronously shoots the membrane surface at desired time intervals. The dots on the membrane surface are tracked in terms of their center of mass using an image processing software with the accuracy of about 0.01 mm. By comparing image data at two different time intervals, the displacement of each dot during that time interval is obtained. The coordinate correction is performed on the pictures to cancel the distortion of an image by the effects of cylindrical shape of specimen, the camera lenses, and refraction from lighting through water in the cell. The high degree of polynomial equations with two variables are used to transform apparent coordinates to real coordinates. Strains are calculated based on the displacement vectors defined by the shape function matrix and the deformation matrix of the four nodes using two-dimensional linear isoparametric rectangular elements. In order to study liquefaction behavior, undrained cyclic loadings are conducted on Toyoura sand prepared by air pluviation and Katori sand prepared by moist tamping and water sedimentation. It is found that this image analysis technique and coordinate correction are powerful tool in measuring the local deformation. It is also found that the local deformations of specimens are different with the global one for both moist tamping and water sedimentation specimens.

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Männel, Benjamin, Tilo Schöne, Markus Bradke e Harald Schuh. "Vertical Land Motion at Tide Gauges Observed by GNSS: A New GFZ-TIGA Solution". In International Association of Geodesy Symposia. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/1345_2022_150.

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AbstractLong-term tide gauge records provide valuable insights to sea level variations but interpretation requires an accurate determination of associated vertical land motion. Within the Tide Gauge Benchmark Monitoring Pilot Project of the International GNSS Service dedicated reprocessing campaigns are performed for GNSS stations co-located with tide gauges. Based on 341 stations the GFZ contribution to the third TIGA reprocessing provides vertical land motion rates for 230 stations at or close to recently active tide gauges. GNSS station coordinate time series determined by using a network approach and a conventional time series analysis show mean repeatabilities of 2.9, 3.3, and 5.6 mm for north, east, and up coordinates. The derived vertical velocity pattern is analyzed but also compared to the ALTIGAPS and the ULR6a solutions showing mean differences of 0.04 mm yr−1 and −0.1 mm yr−1, respectively. By correcting tide gauge records available via PSMSL for the individual vertical station velocity including eventually velocity changes geocentric sea level changes are determined. Compared to AVISO’s multi-mission altimetric trend map a difference of −0.7 mm yr−1 is determined.

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Louër, Daniel. "Use of pattern decomposition to study microstructure: practical aspects and applications". In Defect and Microstructure Analysis by Diffraction, 673–97. Oxford University PressOxford, 2000. http://dx.doi.org/10.1093/oso/9780198501893.003.0028.

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Abstract Since diffraction-line broadening is influenced by structural imperfections and the small size of crystallites (i.e. domains over which diffraction is coherent), powder diffraction is a valuable method for the determination of these properties. The theory of diffraction by imperfect solids was well established half a century after the introduction of X-ray diffraction and many applications were reported from powder diffraction data. These were essentially based on a Fourier analysis of diffraction-line broadening and, to a lesser extent, on an interpretation of the integral breadth, when an approximate characterization was sufficient (see Wagner, 1966). The detailed information, apparent crystallite size, cell-column length distribution and microdistortion, extracted from the theory based on Fourier series, has been found to be attractive and has often influenced the choice of the method for ‘precise’ line-broadening analyses, in spite of constraints (e.g. well-resolved lines are required) and propagation of errors during the treatment (Chapter 26; Young et al.,1967; Delhez et al.,1982). Experimental ‘crystallite size’ distributions are of low precision (see Bertaut, 1950; Le Bail and Louer, 1978) and their interpretation is complex, except in a few cases, such as in the direction perpendicular to uniformly-shaped disk or platelet crystallites (Le Bail and Louer 1978, 1980). As far as ‘size’ effect is concerned, Fourier apparent size ‘may appear to be of no advantage since a simple measurement of the line widths leads to another average function of the diameters’ (Guinier, 1963). Indeed, the theory of diffraction based on the integral breadth is well established (Chapter 5) and shows that average values of sizes and structural imperfections can be extracted from powder diffraction data. The general use of this approach was limited, in the past, by severe approximations (e.g. the correction of the instrumental contribution was based on simple assumptions about line shapes). The recent introduction of pattern modelling techniques, combined with the use of the properties of the Voigt function (Langford, 1978), has contributed to a renewal of interest in the use of the integral breadth for line-broadening analyses. The procedure presents the advantage of speed and convenience over the elaborate Fourier analysis, which may be a serious benefit when a number of samples for the same material have to be studied. Based on all information available in the diffraction pattern, the method is appropriate for characterizing anisotropic microstructural properties.

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Trabalhos de conferências sobre o assunto "Pattern-Based Corrections"

Ye, Qiancheng, He Li, Zhipeng Lin, Qiuming Zhu, Qianhao Gao, Baohua Cao, Tao Liu e Jun Zhou. "Data Correction-Based Model-Driven 3D Radiation Directional Pattern Construction for 5G Base Stations". In 2024 IEEE 100th Vehicular Technology Conference (VTC2024-Fall), 1–5. IEEE, 2024. https://doi.org/10.1109/vtc2024-fall63153.2024.10757503.

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Xu, Yong, Yongfeng Zhu e Zhiyong Song. "Narrow-beam radar clutter distortion correction method based on clutter pre-screening and beam pattern demodulation". In 6th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2024), editado por Dehai Zhang e Tao Lei, 112. SPIE, 2024. http://dx.doi.org/10.1117/12.3037634.

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Newmark, David M., Sheila Vaidya, Jakub Segen e Andrew R. Neureuther. "Large-area optical proximity correction using pattern-based corrections". In 14th Annual BACUS Symposium on Photomask Technology and Management, editado por William L. Brodsky e Gilbert V. Shelden. SPIE, 1994. http://dx.doi.org/10.1117/12.195835.

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Leon, G., S. Loredo, S. Zapatero e F. Las Heras. "Radiation pattern error corrections based on Matrix Pencil method". In 2008 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting. IEEE, 2008. http://dx.doi.org/10.1109/aps.2008.4619820.

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Hassanzadeh, Armin, Amit Katiyar, Hosein Kalaei, Doug Pecore, Ephraim Schofield, Quoc Nguyen e Corey Gilchrist. "Successful CO2-Foam Field Implementation for Improving Oil Sweep Efficiency in EVGSAU Field at Permian Basin: Expansion Phase". In SPE Annual Technical Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/210182-ms.

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Abstract A successful CO2-foam technology has operated at the East Vacuum Grayburg San Andres Unit (EVGSAU) since Jan 2018 by ConocoPhillips in cooperation with Dow. In early 2020, scope of the technology was expanded from one pattern to three patterns. The expansion phase was implemented to evaluate scalability of this technology to patterns with diverse conformance issues and productivity inefficiencies. Severe vertical and areal conformance issues were initially identified in these patterns, resulting in early gas breakthroughs and poor oil sweep efficiencies. Due to the outstanding performance of the first phase, the same surfactant with high foaming tendencies, high gas solubility, and low adsorption characteristics was implemented in the new patterns. In contrast to the first foam pattern, gas injectivity was reduced by 20 to 50% after only 2 foam cycles in the new patterns. Based on injection profile logs (IPL), no out-of-zone injection was identified before the surfactant injection for the two new patterns, which can be the reason for such rapid injectivity responses. Similar to the first pattern, deep conformance corrections were confirmed as gas was redirected from highly connected producers to other producers within the new patterns. A lower surfactant dosage was applied to one of the new patterns to optimize chemical consumption, while sustaining the performance. The surfactant concentration was also reduced in the first pattern to study the effect of a lower dosage on a known performing pattern. During the foam implementation, the gas to water ratio (GWR) at the pattern injectors was increased to maintain the patterns at the baseline fluid throughput. This adjustment resulted in more than a 50% reduction in water consumption and a 17% improvement in gas utilization. Overall, a sustainable increase in oil production rate (30 to 40% over the baseline for the last two years) was achieved in the three foam patterns as a result of the foam implementation. This three-pattern CO2-foam field result is an outstanding example of how proper implementation of a novel surfactant in a conventional reservoir with mild-to-severe deep conformance issues can improve oil sweep efficiency. The application of this foam technology has demonstrated the extension of the life of a mature asset like EVGSAU by arresting the historical decline in the oil production rate. Reduction in energy and water consumption per barrel of oil produced, and further CO2 sequestration are other benefits of this technology.

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Doughan, Ziad, Hadi Al Mubasher, Rola Kassem, Ahmad M. El-Hajj, Ali M. Haidar e Layth Sliman. "Logic-Based Neural Network for Pattern Correction". In 2022 International Conference on Smart Systems and Power Management (IC2SPM). IEEE, 2022. http://dx.doi.org/10.1109/ic2spm56638.2022.9988994.

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Varol, Cihan, e John R. Talburt. "Pattern and Phonetic Based Street Name Misspelling Correction". In 2011 Eighth International Conference on Information Technology: New Generations (ITNG). IEEE, 2011. http://dx.doi.org/10.1109/itng.2011.101.

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Kim, Yonghyeon, Kweonjae Lee, Jinman Chang, Taeheon Kim, Daehan Han, Kyusun Lee, Aeran Hong et al. "The cell pattern correction through design-based metrology". In SPIE Advanced Lithography, editado por John L. Sturtevant e Luigi Capodieci. SPIE, 2015. http://dx.doi.org/10.1117/12.2085004.

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Bajpai, Anuj Bajpai, Anita Kumari Kumari, Mrinmoy Biswas Biswas e Ajay Kumar Kumar. "Design and Implementation of India’s First Successful Commercial ASP Flooding Project: A Case Study". In Gas & Oil Technology Showcase and Conference. SPE, 2023. http://dx.doi.org/10.2118/214204-ms.

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Abstract Present paper is aimed at disseminating learnings of designing and implementation of ASP flooding, a novel EOR technique, in a mature onshore field of ONGC. Scope encompasses ideation to successful field implementation including laboratory studies, pilot design & its execution and finally scaling up to full-field commercial implementation. Paper also covers monitoring strategies & methodologies used in the project which gave necessary insights for mid-course corrections resulting in around 200% improvement in production. Pilot implemented in inverted 5-spot pattern with 4 injectors and 9 oil producers. Based on lessons learnt, field scale ASP with injection rate of 1120 m3/d through 14 patterns with 35 oil producers was implemented from July-19 with Alkali-2.5%, Surfactant-2500 ppm and Polymer-1500 ppm. Gradually, liquid withdrawal improved to ~1300m3/d from ~400 m3/d by optimizing oil wells. It resulted in oil improvement from 50 to 138 tpd. Initially, scheme could not perform. Maintaining ASP formulation and regular monitoring are crucial for success. Regular collection and analysis of ASP slug samples is done. Analysis revealed, reduction of Alkali may improve production. It was observed, ASP slug viscosity of ~4cP is achieved with the used formulation against expected viscosity of 9.3 cP. It can happen with variation in water quality and slug parameters at field level. After detail analysis and revisiting laboratory studies it was confirmed that the lower than envisaged slug viscosity is the main reason behind sub optimal performance of the scheme. Because of low ASP slug viscosity the required mobility ratio could not be achieved which leads to poor sweep efficiency. It was also confirmed that reduction of Alkali shall improve slug viscosity. Accordingly, ASP injection was carried out with ~1.2% Alkali along with Surfactant & Polymer of recommended concentration since Dec-21. The impact of improving sweep efficiency and regular intervention for optimizing oil wells improved oil production from 126 in Feb-22 to 250 tpd in Jun-22 with drop of water cut from 91% to 83%. Presently, it is producing 220 tpd with ~85% water cut. Success of project is the outcome of rigorous efforts by deliberating mid-course correction to optimize quality and quantity of ASP solution, pattern balancing by tweaking withdrawal rates of producers so as to have a uniform flood movement and improve sweep efficiency. ASP process provides synergistic benefit of three different types of chemicals to mobilize trapped oil in chemical EOR. The best way is to look back in lab to re-investigate how much tuning can be done to overcome field challenges. The side effect of alkali is studied and lowering its concentration is considered to be a better solution. Project success and its learning shall go a long way in implementation of future Chemical EOR projects.

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Tariq, Adnan, Irfanullah, Jalil Kazim, Muhammad Ayaz, Alam Zaib, Shahid Khattak e Rashid Ahmed Bhatti. "Interpolation Based Radiation Pattern Correction in Conformal Beamforming Arrays". In 2019 2nd World Symposium on Communication Engineering (WSCE). IEEE, 2019. http://dx.doi.org/10.1109/wsce49000.2019.9041068.

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