705 research outputs found

    Dentigerous Cyst

    No full text
    Dentigerous Cyst Dental School Radiology Presentation : Dentigerous Cyst Author : Tadinada, Aditya Medical Subject : Dentigerous Cyst, Odontogenic Cysts Clinical Presentation Description : Radiolucency arising from the CEJ of an unerupted tooth Location of Abnormality : Posterior Mandible Radiological Features : Radiolucency arising from the CEJ of an unerupted tooth DDx Description : Dentigerous cyst, odontogenic keratocyst, ameloblastoma Type of Image : Panoramic Radiograph Digital Publisher : UCONN Health Center : Kilham, Jessica Format : jpg Date : 201

    Design, modeling and real-time monitoring of continuous powder mixing processes

    No full text
    Continuous processing is an advantageous alternative for the current methods used in the pharmaceutical manufacturing. Important advantages that it offers include smaller equipment footprint, reduced efforts in the scale-up work, and the potential to utilize already continuous processes to make the entire manufacturing more efficient. In the current pharmaceutical manufacturing environment, powder mixing process is carried out in the batch mode. The necessary methods and guidelines to design an equivalent continuous process are not well established. The work presented in this dissertation focuses on the characterization, design and optimization of a continuous powder mixing process for pharmaceutical powders. A systematic study was performed of the effects of process and design variables, and material properties involved in the continuous powder mixing process. The bulk powder flow behavior was characterized using the residence time distribution (RTD) measurement approach. Impeller speed, material bulk density and impeller design greatly influenced the mean residence time. With increasing impeller speed, mechanical fluidization was observed, which significantly affected axial dispersion coefficients. Intermediate rotation rates exerted maximum strain on the material, which leads to maximum homogenization. The strain measurements correlated well with the properties of tablets including content uniformity and tablet hardness. Mixing performance was largely dominated by the material properties of the mixture, and the blend uniformity measurement was affected by the sample size analyzed. An experimental protocol was developed to measure the blend uniformity in the in-line mode, and a methodology was further built to quantitatively relate the in-line NIR measurements with the off-line wet chemistry measurements. Considering the shear limitations of the continuous bladed mixer, alternative blending strategies, suitable for blending of cohesive materials were also demonstrated. A combination of a high-shear mixing followed by a low-shear mixing process provided the optimal mixing performance. The predictive understanding of the continuous powder mixing process developed in this dissertation can assist towards the design and development of a fully controlled continuous manufacturing process.Ph. D.Includes bibliographical referencesIncludes vitaby Aditya U. Vanaras

    Crystal Dynamics and Anharmonic Properties of Bi-Pb-Tl Alloys

    No full text
    Title: Crystal Dynamics and Anharmonic Properties of Bi-Pb-Tl Alloys, Author: Aditya P. Roy, Location: ThodeThe crystal dynamics and anharmonic properties have been investigated in disordered alloys of Bi-Pb-Tl using slow neutron spectrometry. Damping of phonons caused by phonon-phonon interaction and the effect of the force constant disorder on the lifetime of the phonons have been studied in the alloys. Measurements of the coefficients of thermal expansion are reported. An experimental method of determining the lattice frequency spectra by coherent inelastic scattering of neutrons from polycrystalline materials is described.ThesisDoctor of Philosophy (PhD

    On the two-potential constitutive modelling of rubber viscoelastic materials

    No full text
    U of I Only Restriction Lifted for Item 93166 on 2018-07-08T09:15:36Z."This work lays out the specialization of the two-potential constitutive framework --- also known as the ""generalized standard materials'' framework --- to rubber viscoelasticity. Inter alia, it is shown that a number of popular rubber viscoelasticity formulations, introduced over the years following different approaches, are special cases of this framework. As a first application of practical relevance, the framework is utilized to put forth a new objective and thermodynamically consistent rubber viscoelastic model for incompressible isotropic elastomers. The model accounts for the non-Gaussian elasticity of elastomers, as well as for the deformation-enhanced shear thinning of their viscous dissipation governed by reptation dynamics. The descriptive and predictive capabilities of the model are illustrated via comparisons with experimental data available from the literature for two commercially significant elastomers."Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2018-05-01The student, Aditya Kumar, accepted the attached license on 2016-04-21 at 16:42.The student, Aditya Kumar, submitted this Thesis for approval on 2016-04-21 at 17:40.This Thesis was approved for publication on 2016-04-25 at 13:53.DSpace SAF Submission Ingestion Package generated from Vireo submission #9421 on 2016-07-07 at 13:50:34Made available in DSpace on 2016-07-07T20:27:55Z (GMT). No. of bitstreams: 2 KUMAR-THESIS-2016.pdf: 837141 bytes, checksum: 4cd6a13625dabb966b6db0afa249edcc (MD5) LICENSE.txt: 4209 bytes, checksum: 0e09e0cd09aa5811ed8246d9f3eb6e6d (MD5) Previous issue date: 2016-04-25Embargo set by: Seth Robbins for item 93166 Lift date: 2018-07-07T20:28:14Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemEmbargo set by: Seth Robbins for item 93166 Lift date: 2018-07-07T20:35:34Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD syste

    LADM Implementation Prototype for 3D Cadastre Information System of Multi-Level Apartment in Indonesia

    No full text
    Limitations of land supply for infrastructure developments in urban areas led to the development of multi-level and vertical buildings. Massive developments and uses of high rise buildings and constructions such as muti-level apartments and overpass structures in big cities in Indonesia indicated that the demand for space above the ground surface is rapidly increasing in recent years. Regardless the existence of policy and standards of services on land and property registrations, the trend will potentially cause ineffective space management as there is no dedicated information system to efficiently and effectively register and manage information related to boundary of property objects and spaces above the ground and their corresponding rights of ownerships and uses. This paper is dealt with a development of an information system prototype that deals with the registration and management of objects and spaces related to cadastre system (3D cadastre) . Currently the registration system does not store geometry and attributes of ownerships of spaces of property objects in a single system whereas there is a potential opportunity to adopt Land Administration Domain Model (LADM) basic classes in enhancing registration and visualization of land and property spaces. For that reason, a prototype was built based on a simple implementation of LADM basic classes by conforming to the national law on strata title for multi-level appartment and regulation of national land office related to land registration systems. This research uses 3D spatial data stored in CAD format of commercial units in multi-level building in city of Semarang. Enterprise Architect UML CASE Tools 9.3 is used to create a spatial database schema concerning the implementation of LADM basic classes suited to strata title registration system. PostgreSQL with PostGIS spatial extensions were applied to store geometries and attribute data. Delphi programming language with its GLScene components are chosen as the framework to build the prototype that enables 3D spatial data visualization. This research successfully created a desktop-based 3D cadastral information system prototype called SIK3D. SIK3D complies the terms of land administration system which mandates that the system should facilitate data input, processing, and visualization of land parcels and related spaces with their corresponding uses and ownership rights. Through the system, LADM basic classes can be adapted to the appartment’s space ownership registration system that currently is regulated in Indonesia according to the Law. No. 20/2011 on Strata Title for Appartment and Executive Order of Land Office No. 1/2010 on land registration systems

    Stitches: Blending landscape fabric through the golden threads of spatial identity in San Riku coastline, Otsuchi, Iwate, Japan

    No full text
    Disaster prevention and coastal protection of Otsuchi have affected the livelihood and the daily pattern of lifestyle of the regular Otsuchian. This work represents the alternative to a typical top down prefectural level demand for a line based infrastructural solution to disaster prevention and creates the required importance of livelihood, culture and identity of a place over the protection structure. While in the design of such critical areas it is important to place protection of the citizens at a high level, it is also a necessity to understand the situation of each city as different from each other. In this way, the genius loci of a place is founded. Along the San Riku coastline where the tsunami and earthquake hit the hardest due to the landscape features and the proximity to the epicenter the government has set a list of top down governed structures that have impacted the urban fabric of the city, This document looks at one of these towns “Otsuchi” and how alternate solutions based on the historical and landscape features of the district can help create landscapes of livelihood for the citizens. Otsuchi among many other Japanese cities faces the issue of a shrinking population due to a lack of economy, a lack of education in the rural areas and a lack of opportunities. The design document also looks at how Identity crisis in a Rias coastline/ Aditya Athreya Rao/ TU Delft 1 landscape can create a set of cyclical opportunities for the people to develop their town responsibly and sustain-ably as they see fit. Landscape design seeks to provide opportunity to the stakeholders to further create, it provides the platform for this creation and the thesis looks at ideas and solutions on ways this can be done. Keywords: Landscape Infrastructure, Identity, Contextual Design Genius Loci, Landscape Design, New landscapesFlowscapesArchitecture, Urbanism and Building Sciences | Landscape Architectur

    Navigating the Second Victim Experience in Gastrointestinal Endoscopy and Colonoscopy.

    No full text
    This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. © 2025 The Author(s). JGH Open: An open access journal of gastroenterology and hepatology published by Journal of Gastroenterology and Hepatology Foundation and John Wiley & Sons Australia, Ltd
    corecore