Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 64 for “"STL"”.
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Divide and recombine: Autoregressive models and STL+
… Decomposition procedure based on loess (STL+) is used to model the CIDR series. Motivated by the CIDR series analysis, we propose a general prediction based model selection procedure, where extensive visual diagnostics are part of the procedure for selecting the best performing model. …
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Laser surface thermal lensing (STL): An optical method for surface analysis of glass transition effects in transparent polymers
… same focal point. The Surface Thermal Lensing (STL) technique is based on detecting the modulated interference pattern that results from interaction of the probe beam wavefront as it reflects from both the flat surface surrounding the transient lens and the curved lens surface itself. Since a …
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Virginia Technology Education Teachers' Implementation of Standards for Technological Literacy
… published Standards for Technological Literacy (STL) to assist technology educators in establishing curriculum to reflect technological literacy. Presently, the extent to which STL and the individual Standards are being used is not known. The problem of this study was to determine the extent to …
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Application of surface thermal lens technology combined with polarization to the study of polymers
… technology. The Surface Thermal Lens (STL) technique was employed to study polymers because of its higher spatial resolution and greater sensitivity than the classical photothermal detection techniques (PDT). Zeonex [Cyclo-Olefin-Polymer] and acrylic [Poly–Methyl- Meth-Acrylate] were …
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Acoustical characterization and parameter optimization of polymeric noise control materials
The sound transmission loss (STL) characteristics of polymer-based materials are considered. Analytical models that predict, characterize and optimize the STL of polymeric materials, with respect to physical parameters that affect performance, are developed for single layer panel configuration and …
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Investigation of the optical, thermal, and mechanical properties of a bulk polymer using the surface thermal lensing technique
… technique of Surface Thermal Lensing (STL) was employed to study the thermo-mechanical response of an amorphous polycarbonate as a bulk. A discussion is given of how previously developed theories did not fit well with the present work. Therefore, only qualitative analysis and discussion …
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Mapping Myocardial Elasticity with Intracardiac Acoustic Radiation Force Impulse Methods
… stiffer. Single-track-location SWEI (STL-SWEI) is proven to provide suppression of speckle noise and enable improved resolution of structures smaller than 2 mm in diameter compared to ARFI and MTL-SWEI. Contrast to noise ratio and lateral edge resolution are shown to vary with …
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Initial Implicit Changes in Adaptation as a Function of Different Perturbations
… contexts. We employed a single-trial learning (STL) paradigm within a classical visuomotor adaptation task. Participants reached to dot and arc targets while experiencing single rotated-cursor trials (1°-90°), isolating trial-by-trial changes in motor outputs, along with a long-exposure block …
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Estudio de espesores óseos, gingivales e inclinaciones axiales de molares en pacientes con diferentes patrones sagitales verticales y su relación con la discrepancia trasversal ósea. Análisis basado en superposición de imágenes CBCT y archivos STL.
… Medicine) provenientes del CBCT y los archivos STL (STereoLithography) del modelo digital de la dentición del paciente No se encontraron diferencias estadísticamente significativas entre las inclinaciones bucolinguales y los diferentes patrones faciales verticales (p> 0,05). Se encontraron …
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Development of Finite Element Modeling Mesh Generation and Analysis Software for Light Wood Frame Houses
… of the powerful C++ Standard Template Library (STL). Quadrilateral mesh generation is limited to simple quadrilateral domains with no openings or constraint lines. A simple structured technique is implemented to generate the quadrilateral mesh. The amount of time spent in manual generation of …
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Algorithms for design and interrogation of functionally graded material solids
… tool allowing the user to design within a .STL file require enhanced efficiency and so does the interrogation of the part. The approach for improving efficiency includes preprocessing the model with bucket sorting, digital distance transform of the buckets and an efficient point …
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Detekce anomálií v množství generovaných záznamů o incidentech
… anomálií v časových radoch. Predstavuje metódy STL decomposition, ARIMA, Exponential Smoothing a LSTM Networks. Cieľom je pomocou týchto metód vytvoriť algoritmus, ktorý dokáže analyzovať trend v množstve generovaných záznamov o incidentoch a detekovať anomálie z trendu. Riešenie bolo vytvorené …
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Simulátor 3D tiskárny
… Vstupem simulátoru je 3D model ve formátu STL. Pro daný 3D model simulátor poskytuje odhad celkové doby tisku. Součástí simulace je také vizualizace procesu 3D tisku. Výsledkem práce je přenositelný program testovaný pod operačními systémy Linux a Windows. Funkčnost simulátoru byla …
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A Multi-Constellation Multi-Frequency GNSS Software Receiver Design for Ionosphere Scintillation Studies
… covariance matrices. Both scalar tracking loop (STL) and VTL are implemented. Once an error in the scalar loop is detected, the results from the VTL are used to assist the STL. The performance of the VTL is compared with the traditional STL with three different data sets: raw GPS RF data with …
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Evaluación de la precisión en la predictibilidad del movimiento de expansión con alineadores
… obtuvieron los modelos digitales en tres fases: STL inicial, STL final (antes del primer refinamiento) y set-up inicial. Se midieron los anchos de arcada de cúspide a cúspide entre caninos, premolares y primeros molares. Se realizó un análisis estadístico mediante el software SPSS versión 28.0 …
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Dynamics and parameterization of stably stratified turbulence: implications for estimates of mixing in geophysical flows
… shear, and thus, a shear strength parameter, STL = Sk/ϵ, and the gradient Richardson number, Ri = N2/S2, are considered along with NTL to define three regimes available to high Reynolds number stratified shear-flow turbulence: a buoyancy-dominated regime (NTL ≳ 1.7, Ri ≳ 0.25), a …
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Effects of Elevated Intracranial Pressure on a Cerebral Vein Model
… the skull was extracted and exported as an STL file. From there, a segment of a diploic vein was isolated and edited by importing the STL into Blender. The segment was then processed using MeshLab and Blender to make it a solid geometry and remove potential complications. Once the vessel …
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Divide and recombined for large complex data: Nonparametric-regression modelling of spatial and seasonal-temporal time series
… decomposition, called Seasonal Trend Loess (STL). The chapter is closed by the introduction of D\&R; (Divide and Recombined) statistical framework. Data can be divided into subsets, each of which is applied with a statistical analysis method. This is an embarrassing parallel procedure since …
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Adaptive high-precision exterior, high-speed interior, layered manufacturing
… it segregates solid models described in the STL file format into exterior and interior regions. The exterior regions are fabricated with thin, dense, adaptive thickness layers, using narrow material deposition, to ensure high-precision part surfaces. Concurrently, the interior regions are …
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In Vitro Comparative Study Between Full-Arch Conventional Implant Impressions and Full-Arch Digital Implant Impressions with Snap-on Scan Bodies
… and exported in standard tessellation language (.STL) format (Group Control). Splinted open-tray impressions (Group 1, n=5) and closed-tray impressions (Group 2, n=5) were made and stone casts were fabricated. Digital impressions (Group 3, n=5) were made with an intra-oral scanner and the .STL …
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