56 research outputs found
Organ Trade in India - The Grey Area
No full textMaster Thesis Abstract Institute of Political Studies Faculty of Social Sciences Charles University in Prague Author: Pavithra Ramesh Supervisor: Janusz Salamon, Ph.D. E-mail: [email protected] m E-mail: janusz.salamon@univ- oxford.com Phone: +420774960096 Phone: +420731816202 Specialisation: IEPS Defense Planned: June 2017 Topic: Bioethics is the study concerned with the implications of medical procedures, technologies and treatments from the perspective of ethics, philosophy, law and its implementation. It encompasses a wide range of ethical concerns in relation to organ transplants, genetic engineering, artificial reproduction, euthanasia etc. My thesis is an attempt to probe into certain ethical nuances amidst the technological advances in the field of medicine. Particularly, with respect to organ trade in India. Since the origin of medicine the primal goals have followed the Hippocratic Oath of "Cure sometimes, treat often, comfort always." (Adams 1891). The questions this perception of early medicine leaves us with are: Have we withdrawn from the compassion and ethics prescribed with the advent of advanced lab technology? What are the issues around organ trade in India? What causes these issues? And how can this be dealt with? The approach to pursue the answers for the above, revolves around..
Exploration of Spatiotemporal Expansion Pattern and Comparative Evaluation of Urban Growth Models: A Case Study of Colombo, Sri Lanka
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Accelerating RSA Public Key Cryptography via Hardware Acceleration
No full textA large number and a variety of sensors and actuators, also known as edge devices of the Internet of Things, belonging to various industries - health care monitoring, home automation, industrial automation, have become prevalent in today's world. These edge devices need to communicate data collected to the central system occasionally and often in burst mode which is then used for monitoring and control purposes. To ensure secure connections, Asymmetric or Public Key Cryptography (PKC) schemes are used in combination with Symmetric Cryptography schemes. RSA (Rivest - Shamir- Adleman) is one of the most prevalent public key cryptosystems, and has computationally intensive operations which might have a high latency when implemented in resource constrained environments. The objective of this thesis is to design an accelerator capable of increasing the speed of execution of the RSA algorithm in such resource constrained environments. The bottleneck of the algorithm is determined by analyzing the performance of the algorithm in various platforms - Intel Linux Machine, Raspberry Pi, Nios soft core processor. In designing the accelerator to speedup bottleneck function, we realize that the accelerator architecture will need to be changed according to the resources available to the accelerator. We use high level synthesis tools to explore the design space of the accelerator by taking into consideration system level aspects like the number of ports available to transfer inputs to the accelerator, the word size of the processor, etc. We also propose a new accelerator architecture for the bottleneck function and the algorithm it implements and compare the area and latency requirements of it with other designs obtained from design space exploration. The functionality of the design proposed is verified and prototyped in Zynq SoC of Xilinx Zedboard.Master of Science in Electrical and Computer Engineering (MSECE
Mitigating airport congestion : market mechanisms and airline response models
No full textThesis (Ph. D.)--Massachusetts Institute of Technology, Sloan School of Management, Operations Research Center, 2009.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Includes bibliographical references (leaves 157-165).Efficient allocation of scarce resources in networks is an important problem worldwide. In this thesis, we focus on resource allocation problems in a network of congested airports. The increasing demand for access to the world's major commercial airports combined with the limited operational capacity at many of these airports have led to growing air traffic congestion resulting in several billion dollars of delay cost every year. In this thesis, we study two demand-management techniques -- strategic and operational approaches -- to mitigate airport congestion. As a strategic initiative, auctions have been proposed to allocate runway slot capacity. We focus on two elements in the design of such slot auctions -- airline valuations and activity rules. An aspect of airport slot market environments, which we argue must be considered in auction design, is the fact that the participating airlines are budget-constrained. -- The problem of finding the best bundle of slots on which to bid in an iterative combinatorial auction, also called the preference elicitation problem, is a particularly hard problem, even more in the case of airlines in a slot auction. We propose a valuation model, called the Aggregated Integrated Airline Scheduling and Fleet Assignment Model, to help airlines understand the true value of the different bundles of slots in the auction. This model is efficient and was found to be robust to data uncertainty in our experimental simulations.(cont.) -- Activity rules are checks made by the auctioneer at the end of every round to suppress strategic behavior by bidders and to promote consistent, continual preference elicitation. These rules find applications in several real world scenarios including slot auctions. We show that the commonly used activity rules are not applicable for slot auctions as they prevent straightforward behavior by budget-constrained bidders. We propose the notion of a strong activity rule which characterizes straightforward bidding strategies. We then show how a strong activity rule in the context of budget-constrained bidders (and quasilinear bidders) can be expressed as a linear feasibility problem. This work on activity rules also applies to more general iterative combinatorial auctions.We also study operational (real-time) demand-management initiatives that are used when there are sudden drops in capacity at airports due to various uncertainties, such as bad-weather. We propose a system design that integrates the capacity allocation, airline recovery and inter-airline slot exchange procedures, and suggest metrics to evaluate the different approaches to fair allocations.by Pavithra Harsha.Ph.D
“Microwave and Sonication assisted extraction of pigments from marigold flower [tagetes erecta].
No full textThis Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page
Commentary: The time-honored practice of tonometry disinfection – Our ultimate strength or a chink in our anti-glaucoma armor?
No full textThe effect of material and process parameters on impeller torque and power consumption in a bladed mixer
No full textA large number of industries including catalytic, chemical, cosmetic, food, and pharmaceutical industries frequently handle powders or granular materials in various unit operations. A cylindrical mixer mechanically agitated by an impeller blade is a common, industrially relevant geometry in numerous particle processing technologies. A bladed mixer has a capability of handling a wide variety of solid and liquid systems: free flowing and cohesive powders, pastes, or suspensions. The torque needed to move the impeller, provides insight into flow behavior of the material and can be monitored on the bench scale, pilot scale, and manufacturing scale so that it could provide useful information for scale-up and process monitoring & control. Experimental measurements of the agitation torque exerted on a particle bed and the power draw for the motor driving the impeller blades in a mixing process were conducted to investigate the impact of particle properties and blade geometry as a function of the blade rotation rate. It was found that the torque exerted on a granular bed and the power consumption were a strong function of the impeller blade configuration, the position of the blades in a deep granular bed, the fill height of the glass beads, and the size and friction coefficient of the particles. It was observed that the time-averaged torque and power consumption for different particle sizes qualitatively scaled with particle diameter. A scale-up relationship for a deep granular bed was developed: the time-averaged torque and average adjusted power consumption scaled with the square of the material fill height.M.S.Includes bibliographical referencesby Pavithra Valliappa
Comparative Study on Nutritive Content of Finger Millet-Wheat Composite Bread Fermented With Lactic Acid Bacilli and Yeast
No full textComparative Study on Nutritive Content of Finger Millet-Wheat Composite Bread Fermented With Lactic Acid Bacilli and Yeast
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