5,689 research outputs found
Architectural Components of Digital Library:A Practical Example Using DSpace
No full textInformation communication technology has brought out changes in the field of digital library in handling digital library services. An electronic library is a focused collection of digital objects include text, visual, material, stored as electronic media formats. In this paper highlights technological architectural components, how the digital library software works, flow, and handle with various tools to carry out the digital library in a defined purpose and also paper highlights the technological understanding and issues involving in creating digital library
V. K. R. V. Rao, A. M. Khusro, C. H. Hanumantha Rao, P. C. Joshi, K. Krishnamurthy, Ajit K. Das, Inflation and India's economic crisis
No full textÉtienne Gilbert. V. K. R. V. Rao, A. M. Khusro, C. H. Hanumantha Rao, P. C. Joshi, K. Krishnamurthy, Ajit K. Das, Inflation and India's economic crisis. In: Tiers-Monde, tome 15, n°58, 1974. pp. 445-446
A Newly Discovered Paramāra Inscription of Ajayavarma from Sohāgpūr - A Brief Note
No full textRajesh Mehar and S. Krishnamurthy, "A Newly Discovered Paramāra Inscription of Ajayavarma from Sohāgpūr - A Brief Note," Bhāratīya Purābhilēkha Patikā 43 (2018): 103-112
Probiotics in Caries Prevention
No full textHow to cite this article: Kumar VN, Krishnamurthy M, Poorni S, Patil S, Raj AT. Probiotics in Caries Prevention. J Contemp Dent Pract 2018;19(2):123-124.</jats:p
GPU-accelerated depth map generation for X-ray simulations of complex CAD geometries
No full textInteractive x-ray simulations of complex computer-aided design (CAD) models can provide valuable insights for better interpretation of the defect signatures such as porosity from x-ray CT images. Generating the depth map along a particular direction for the given CAD geometry is the most compute-intensive step in x-ray simulations. We have developed a GPU-accelerated method for real-time generation of depth maps of complex CAD geometries. We preprocess complex components designed using commercial CAD systems using a custom CAD module and convert them into a fine user-defined surface tessellation. Our CAD module can be used by different simulators as well as handle complex geometries, including those that arise from complex castings and composite structures. We then make use of a parallel algorithm that runs on a graphics processing unit (GPU) to convert the finely-tessellated CAD model to a voxelized representation. The voxelized representation can enable heterogeneous modeling of the volume enclosed by the CAD model by assigning heterogeneous material properties in specific regions. The depth maps are generated from this voxelized representation with the help of a GPU-accelerated ray-casting algorithm. The GPU-accelerated ray-casting method enables interactive (> 60 frames-per-second) generation of the depth maps of complex CAD geometries. This enables arbitrarily rotation and slicing of the CAD model, leading to better interpretation of the x-ray images by the user. In addition, the depth maps can be used to aid directly in CT reconstruction algorithms.This proceeding may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This proceeding appeared in Grandin, Robert J., Gavin Young, Stephen D. Holland, and Adarsh Krishnamurthy. "GPU-accelerated depth map generation for X-ray simulations of complex CAD geometries." In AIP Conference Proceedings, vol. 1949, no. 1, p. 190002. AIP Publishing LLC, 2018, and may be found at
DOI: 10.1063/1.5031636.
Copyright 2018 Author(s).
Posted with permission
Geologic Heterogeneity Controls on CO2 Migration and Trapping
No full textImmiscible, gravity unstable flow experiments were conducted in 2D bead-packs (0.6 m x 0.6 m x 0.02 m) with realistic geological features (cross-stratification). The experiments were visualized using the transmitted light method. This project contains experimental images (in TIFF format), MATLAB script to calculate saturations and time-lapse videos of the flow experiments
Further refinements of the GL(2) converse theorem
No full textWe improve the results of Booker and Krishnamurthy (Compos. Math. 147 (2011) 669–715) by allowing restricted sets of poles among the unramified twists. This allows for a clean statement of the GL(2) converse theorem which includes all cases of Eisenstein series
Revisiting the slow manifold of the Lorenz-Krishnamurthy quintet
No full textThe slow-manifold for the Lorenz-Krishnamurthy model has been studied. By minimizing the evolution rate we ¯nd that the analytical functions for the fast variables are devoid of high frequency oscillations. However upon solving this model with initial values of the fast variables obtained from the analytical functions, the LK model exhibits high frequency oscillations. Upon using the time derivatives of the analytic functions for computing the evolution of fast variables, we ¯nd a slow-manifold in the neighbourhood of the LK model. Minimization of evolution rate does not guarantee the invariance of the manifold. Using a locally linear approximate reduction scheme, the invariance can be maintained. However, the solutions so obtained do develop high frequency oscillations. The onset of these high frequency oscillations is delayed vis-a-vis other previous studies. These methods have potential to be used in improving the predictions of weather systems
Incorporation of composite defects from ultrasonic NDE into CAD and FE models
No full textFiber-reinforced composites are widely used in aerospace industry due to their combined properties of high strength and low weight. However, owing to their complex structure, it is difficult to assess the impact of manufacturing defects and service damage on their residual life. While, ultrasonic testing (UT) is the preferred NDE method to identify the presence of defects in composites, there are no reasonable ways to model the damage and evaluate the structural integrity of composites. We have developed an automated framework to incorporate flaws and known composite damage automatically into a finite element analysis (FEA) model of composites, ultimately aiding in accessing the residual life of composites and make informed decisions regarding repairs. The framework can be used to generate a layer-by-layer 3D structural CAD model of the composite laminates replicating their manufacturing process. Outlines of structural defects, such as delaminations, are automatically detected from UT of the laminate and are incorporated into the CAD model between the appropriate layers. In addition, the framework allows for direct structural analysis of the resulting 3D CAD models with defects by automatically applying the appropriate boundary conditions. In this paper, we show a working proof-of-concept for the composite model builder with capabilities of incorporating delaminations between laminate layers and automatically preparing the CAD model for structural analysis using a FEA software.This proceeding may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This proceeding appeared in Bingol, Onur Rauf, Bryan Schiefelbein, Robert J. Grandin, Stephen D. Holland, and Adarsh Krishnamurthy. "Incorporation of composite defects from ultrasonic NDE into CAD and FE models." AIP Conference Proceedings 1806, no. 1, (2017): 150004. , and may be found at DOI: 10.1063/1.4974728. Posted with permission.</p
The Hyper Reality Principles in the Age of the Post-Humanism: the Paradigm Post-Human Body - Hyper City
No full textSince ancient times, the analogy between the human body and the built environment was direct. On one side, the Greeks used a “psychological understanding” of the body, on the other the Romans used their “geometrical understanding” of the body for the production of urban forms. The “enlightened designers” of the 18th and 19th century desired to create a “healthy city” on the model of a “healthy body.” The ideas was that people could freely flow through the city along new urban infrastructures such as trains. These soon became the urban “arteries and veins.”
Nevertheless, in the 20th-century, cities acquired a spatial segregation in order to satisfy some specialization requirements and to improve efficiency, and economic individualism. The “modern arteries and veins” were not any more sufficient for tying different parts of a fractioned urban body.
The technological achievements of the 21st century such as information technologies (IT), have significantly affected cities. These new informational patterns have provided new ways of designing, and so, experiencing cities. These are “quantified cities” made of digital data that dynamically interact with “quantified human beings.” Are these new contemporary digital “arteries and veins” able to heal an ill and divided urban body or will they emphasise the existing individualistic and urban socio-economic segregation patterns?
This paper will investigate a new concept of “quantified city” based on the notion of “Hyper-Reality,” and the role of citizens who are entering in a “post-human” condition living in a totally dynamic urban environment. In particular, the critical analysis will be used as a “tool” for redefining the perception of the city, the users (post-humans’) relational patterns, and how users take information from the city after the advent of IT (i.e. Google Maps, Uber, Instagram, etc.) and its future development (i.e. Hyper City)
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