3 research outputs found
Complementariedad de medicina occidental y medicina tradicional ancestral en pacientes con diabetes mellitus tipo II ingresados en la sala de Medicina Interna del HNA de enero – junio del 2017
No full textEl presente trabajo es un estudio cuantitativo de tipo descriptivo de corte transversal
que se llevó a cabo en la sala de medicina interna del Hospital Nuevo Amanecer
durante el periodo de enero a junio del año 2017
Semantically-rich as-built 3D modeling of the built environment from point cloud data
No full textModeling of the as-built environment is used by the Architecture, Engineering, Construction, and Facilities Management (AEC/FM) industry in a variety of engineering analysis scenarios. Significant applications include progress monitoring of construction sites, quality control of fabrication and on-site assembly, energy performance assessment, and structural integrity evaluation. The modeling process mainly consists of three sequential steps: data collection, modeling, and analysis. In current practice, these steps are performed manually by surveyors, designers, and engineers. Such manual tasks can be time-consuming, prohibitively expensive, and are prone to errors. While the analysis stage is fairly quick, taking several hours to complete, data collection and modeling can be the bottlenecks of the process: the first can spread over a few days, and the latter can span over multiple weeks or even months. Hence, the applicability of as-built modeling has been traditionally restricted to high latency analysis, where the model need not be updated frequently. In fast changing environments such as construction sites or tenant improvement projects, due to the difficulty in rapidly updating 3D models, model-based assessment methods for purposes such as progress or quality monitoring or creating the basis for design have had very limited applications. There is a need for a low-cost, reliable, and automated method for as-built modeling. This method should quickly generate and update accurate and complete semantically-rich models in a master format that is translatable to any engineering scenario and can be widely applied across all construction projects.
This dissertation address these limitations by presenting an end-to-end procedure based on machine learning algorithms for generating semantically-rich 3D models from point cloud data. It specifically offers three new steps: (1) a new method that segments point clouds into semantically and geometrically meaningful subsets; this method outperforms the state-of-the-art solutions by addressing the problems of over-segmentation and semantic labeling beyond planar surfaces; (2) a new method that fits non-uniform b-spline curves and surfaces (NURBS) into the segmented point cloud subsets. This method also addresses several key manual steps within the state-of-the-art surface and NURBS fitting methods; and (3) a new method that reasons about the interconnectivity between NURBS surfaces based on formalized knowledge of construction sequencing and in particular geometrical relationship to connect the surfaces and finally represent semantically-rich 3D CAD models. My work also introduces a new dataset of point clouds from real-world commercial and industrial buildings. These point clouds were carefully modeled with cross-validation. A comprehensive set of machine learning validation techniques are used to present experimental results. The results show the end-to-end procedure can significantly low time and cost during a typical Scan to BIM process. The results also show that each individual method in the presented pipeline outperforms the most relevant state-of-the-art techniques. The benefits and limitations of the practice of Scan to BIM are discussed in detail.Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2022-08-01The student, Yeritza Perez, accepted the attached license on 2020-07-17 at 08:55.The student, Yeritza Perez, submitted this Dissertation for approval on 2020-07-17 at 09:26.This Dissertation was approved for publication on 2020-07-17 at 14:56.DSpace SAF Submission Ingestion Package generated from Vireo submission #15673 on 2020-10-02 at 15:51:22Made available in DSpace on 2020-10-07T22:50:03Z (GMT). No. of bitstreams: 3
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Previous issue date: 2020-07-17Embargo set by: Seth Robbins for item 116345
Lift date: 2022-10-07T22:50:13Z
Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemAuthor requested closed access (OA after 2yrs) in Vireo ETD systemLimite
Frank Swinnerton : the life and works of a bookman
No full textFrank Swinnerton worked as a clerk for J.M. Dent & Co. between 1901 and 1907 and as a publisher's reader for Chatto & Windus from 1907 until 1926, during which time he began his career as a writer of fiction, became influential as a reviewer and commentator on literary fashions, and began close friendships with Arnold Bennett, HG Wells and Hugh Walpole. In 1926 he left London to live in Cranleigh, Surrey, as a full-time writer of novels, short stories, critical works, book and theatre reviews, and miscellaneous articles for newspapers and periodicals. He died at the age of ninety-eight in 1982. This is the first biography of Frank Swinnerton to be undertaken in Great Britain. An analysis has been made of each of his works, both novels and non-fiction. His influence in literary circles has been assessed, and his contribution to the book world is placed within the background of literary output and trends in the twentieth century. Swinnerton was not a great writer, but his temperament, circumstances and talent combined to produce a respected literary figure whose strength was his perception and understanding of the progress of the British literary world through the centuries.
Swinnerton's numerous friendships are dealt with as they occurred, although major relationships are examined more fully at the point where the friend died. For example, details on HG Wells can be found with his death in 1946 and on Compton Mackenzie with his death in 1972. Greater space has been given to his involvements with Arnold Bennett and Hugh Walpole, in separate chapters placed close to the time of their deaths in 1931 and 1941. One other chapter stands out of sequence. This examines Swinnerton's relationship with his two wives: his complex courtship of Helen Dircks and his second marriage to Mary Bennett. This period, between 1917 and 1924, which also includes a
description of his first lecture tour of the USA in 1923, has been placed immediately after chapters 7 and 8, which examine Swinnerton's general life and work during the same period. Apart from published works and newspaper and periodical articles, the main material used has been Swinnerton's personal diaries, which date from 1910 to 1978, and the correspondence and miscellaneous papers in his personal possession. Also consulted has been a doctoral thesis by Jesse Franklin McCartney presented to the University of Arkansas in 1965, which annotates the large collection of correspondence by Frank Swinnerton to writers, publishers, boakmen and other literary figures, as well as their
replies, which are housed in the University library. Full texts of these letters have been obtained where appropriate and used in this work. Professor Blair Rouse of the University of Arkansas wrote a critical appreciation of Swinnerton's work in the 1960s and his widow has allowed use of the unpublished manuscript and letters exchanged between Rouse and Swinnerton, and has sent correspondence between Swinnerton and the Pinker family. Finally, Swinnerton's friends and family have provided facts, opinions and reminiscences
