318 research outputs found
Optical properties of ceramic nanocomposites
No full textNanoscale constituents in nanocomposites possess excellent optical properties that differ from the macroscale properties. This chapter focuses on the optical properties of nanoscale materials incorporated in glass and ceramics, especially transmittance, absorption, non-linearity and luminescence. The fluorescence property of carbon nanotube-glass composite is a new observation which has hitherto not been studied. All these properties make them a potential material for optical sensors, ultraviolet-infrared shielding windows and other biological applications
Application of SDP to product rules and quantum query complexity
No full textIn recent years, semidefinite programming has played a vital role in shaping complexity theory and quantum computing. There have been numerous applications ranging from estimating quantum values, over approximating combinatorial quantities, to proving various bounds. This work extends the use of semidefinite programs (SDPs) to proving product rules and to characterizing quantum query complexity. In the first application, we provide a general framework to establishing product rules for quantities that can be expressed (or approximated) using SDPs. We use duality theory to give product rules, which bound the value of the ``product'' of two problems in terms of their value. Some previous results have implicitly used the properties of SDPs to give such product rules. Here we give sufficient and necessary conditions under which these approaches work, thereby enabling us to capture these previous results under our unified framework. We also include a discussion about alternate definitions of what a ``product'' means and how they fit into our approach. The second application provides an SDP characterization of quantum query complexity, which is one of the ways in which complexity of a function can be measured. It is known that quantum query complexity can be lower bounded by the so-called ``adversary method'' which is expressible as a semidefinite program. Recently, Ben Reichardt showed that the adversary method leads to a tight lower bound for boolean functions by converting the solution of this SDP (of adversary method) into an algorithm. We show that a related SDP, called ``witness size'' in this thesis, provides a tight bound on the quantum query complexity of non boolean functions (total as well as partial). This witness size SDP is also used to give composition results for quantum query complexity. We also show that the witness size is bounded by a constant multiple of the adversary bound. Finally, we briefly explore whether other convex programming paradigms can be useful in complexity theory. One of them is copositive programming. We show that one of the recent result about parallel repetition of unique games, by Barak et.al., can be interpreted as an application of copositive programming.Ph.D.Includes bibliographical referencesIncludes vitaby Rajat Mitta
Nanofluids including ceramic and other nanoparticles: Applications and rheological properties
No full textFluids with suspended nanoparticles (metallic or ceramic in spherical or non-spherical shapes), forming a stable colloid and maintaining a quasi-single-phase state that can offer an extraordinary level of heat transport property at very low levels of dispersion (<1. vol%), are called nanofluids. This chapter provides an extensive discussion of the potential application areas where different types of nanofluids can be utilized. Different aspects of nanofluids are now being widely researched across the globe, using both experimental and simulation tools. This chapter highlights the parameters that affect the rheological properties of nanofluids. The results published in the literature suggest that the viscosity of nanofluids is directly related to the amount of nanoparticle dispersion (in comparison to that of the base fluid), except at very low concentrations. Sometimes the increase can be many-fold. Theoretical models that explain the increase in the viscosity of nanofluids are compiled and presented
Ceramic nanocomposites
No full textCeramic nanocomposites have been found to have improved hardness, strength, toughness and creep resistance compared to conventional ceramic matrix composites. Ceramic nanocomposites reviews the structure and properties of these nanocomposites as well as manufacturing and applications. Part one looks at the properties of different ceramic nanocomposites, including thermal shock resistance, flame retardancy, magnetic and optical properties as well as failure mechanisms. Part two deals with the different types of ceramic nanocomposites, including the use of ceramic particles in metal matrix composites, carbon nanotube-reinforced glass-ceramic matrix composites, high temperature superconducting ceramic nanocomposites and ceramic particle nanofluids. Part three details the processing of nanocomposites, including the mechanochemical synthesis of metallic-ceramic composite powders, sintering of ultrafine and nanosized ceramic and metallic particles and the surface treatment of carbon nanotubes using plasma technology. Part four explores the applications of ceramic nanocomposites in such areas as energy production and the biomedical field
Nanofluids including ceramic and other nanoparticles: Synthesis and thermal properties
No full textThis chapter reports the detailed study on the synthesis of nanofluids comprising very low concentrations of nanometric metallic or ceramic particles, rods, tubes, etc. The most common ways of preparing nanofluids are the one-step and two-step methods. While the one-step approach usually yields more stable nanofluids, the two-step method is more versatile as it provides the opportunity to disperse a wide variety of nanoparticles in different types of base fluids. However, the main focus of this chapter is on the thermal conductivity of nanofluids, which is the most researched aspect of nanofluids worldwide. An insight into the different parameters that influence the thermal conductivity of nanofluids is presented. In addition to experimental work, the theories used to try to analyze the cause of the anomalous increase in thermal conductivity are also presented
Loyalty 3.0: How to Revolutionize Customer and Employee Engagement with Big Data and Gamification
No full textOnce revolutionary, loyalty programs designed to differentiate products quickly became commoditized. And yet, billions of dollars are still spent every year on programs that are doomed to fail. These programs, it turns out, don\u27t inspire long-term loyalty. Once a better deal comes along, customers will gladly defect. Can you blame them?
Silicon Valley start-up Bunchball, the pioneer and innovator in gamification, is light years ahead when it comes to the concept of loyalty--and using it to drive business profits and growth. Focusing not only on customer loyalty, but also the loyalty of employees and partners, Bunchball combines behavioral economics, big data, social media, and gamification to inspire loyalty that lasts--from everyone involved in the success of a business.
Now, in Loyalty 3.0, Bunchball founder Rajat Paharia reveals how you can use these same techniques to seize the competitive edge for your business.
Paharia shows you how to create a system powered by human motivation and digital technology that creates ongoing, persistent engagement among customers, employees, and partners. Loyalty 3.0 arms you with everything you need to know in order to build a loyalty and engagement program that drives a sustainable advantage for your business, including:
The building blocks of motivation, big data, and gamification necessary for creating a powerful strategy that drives long-term loyalty
Case studies from today’s most innovative companies that are already driving customer engagement, learning and skill development, and employee motivation with Loyalty 3.0 methods
Step-by-step guidance on how to plan, design, build, and optimize your program
Now is the time to abandon your traditional loyalty programs and start taking all your stakeholders seriously--so they will take your company seriously.
Loyalty 3.0 is the game-changing leap you\u27ve been waiting for. When you create true loyalty among customers, employees, and business partners, you will generate a sustainable competitive advantage and win in your industry.
Praise for Loyalty 3.0
“Relationships are the single greatest asset for all organizations. Relationships with customers, relationships with employees, relationships with partners. In Loyalty 3.0, Rajat Paharia reveals the new science of relationship building through big data and gamification.” ?TIM BROWN, CEO, IDEO
"Loyalty 3.0 is filled with major insights and does a brilliant job of grounding the reader in fundamental concepts around motivation, big data, and gamification--building on these concepts through real-world case studies that bring the combinations to life. It finishes with actionable ideas and next steps that enable you to test and operationalize these ideas in your own workplace and personal life." -- BRAD SMITH, CEO, Intuit
"A fascinating insight into how companies are exploiting big data." -- MARK READ, CEO, WPP Digital
"Rajat pioneered the business use of big data and game mechanics to transform the customer experience. A decade before anyone else, he saw that the same techniques that video game designers had used for years--fast feedback, badges, competition, goals, and leveling up?were also incredibly powerful for motivating behavior outside of games, and an industry was born. This book shares his secrets." -- CLARA SHIH, CEO of Hearsay Social, author of The Facebook Era, and board member at Starbucks
"Rajat Paharia comprehensively explains how to create loyalty in the modern world full of data and connectivity. If you want to learn how to motivate and inspire employees, you must read this book." -- DAVE KERPEN, New York Times bestselling author of Likeable Social Media and Likeable Business
"In this powerful and groundbreaking book, Rajat Paharia clearly demonstrates how big data, motivation, and gamification can be utilized to create true engagement and loyalty. We believe Loyalty 3.0 will be a game changer for our associates and guests." -- RAY BENNETT, Chief Lodging Services Officer, Marriott International
“The journey to Loyalty 3.0 is real. Rajat’s vision shows why right time relevancy and context will transform how organizations engage with customers and truly craft relationships.”-?R. RAY WANG, Principal Analyst and CEO at Constellation Research
“Adoption is a critical component when creating an exceptional customer experience or smarter workforce, and gamification has proven to be a powerful driver for success. The insights Rajat shares in Loyalty 3.0 will help guide the next wave of deeper relationships across the enterprise.”-?SANDY CARTER, IBM Vice President, Social Business Evangelism and Sale
Interaktio muotoilussa : Miten rikotaan perinteisten tuotteiden rajat
No full textOpinnäytetyön aihe on saanut alkunsa kiinnostuksesta teknologiaan ja innovaatioihin. Opinnäytetyö on tehty aiheesta, joka kiinnostaa tekijää paljon. Tekijä on halunnut luoda, jotain uutta ja samalla tukea osaamistaan ja sen näyttämistä. Opinnäytetyön tavoitteena on kehittää tuotekonsepteja, joissa huomioidaan interaktio ja rikotaan perinteisten tuotteiden rajat.
Suunnitteluongelmana opinnäytetyössä on ollut ylittää perinteisen tuotteen rajat luomalla tuotteelle ja käyttäjälle vuorovaikutussuhde, interaktio, käyttäen apuna tekijän omaa interaktion määritelmää niin, että tuote on vuorovaikutusominaisuuksien vuoksi haluttavampi. Tässä opinnäytetyössä tutkimusongelmaan vastattiin kehittävällä tuotekonseptoinnilla. Yhteistyökumppanina konseptoinnissa oli Young Skills osuuskunta. Työ aloitettiin löydetyistä tuotetarpeista, ja niihin vastattiin muotoilun keinoin ottamalla vuorovaikutusominaisuudet mukaan muotoiluun.
Opinnäytetyössä selvitetään interaktion määritelmää ja rakennetaan määritelmä interaktiosta. Työssä näytetään millaisia interaktiomuotoilun projekteja maailmalla on tehty, ja millaisia tuotteita on markkinoilla, joissa on interaktiota. Tätä teoriataustaa vasten työssä ideoidaan useita tuotekonsepteja, jotka myöhemmin asetetaan paremmuusjärjestykseen. Parhaasta tuotekonseptista tehdään käyttäjätutkimus ja sen ominaisuuksia kuten haptisuus ja interaktio testataan. Konseptia kehitetään eteenpäin käyttäjäpalautteen perusteella ja sille annetaan muodot. Sen jälkeen konseptin ominaisuudet ja kilpailijat määritetään.
Lopputuloksena konseptista esitetään tulevaisuusskenaariot. Skenaariokuvat ovat rakennetut vastaten järjestyksessä kysymyksiin miksi, miten ja mitä. Skenaariokuvissa yhdistyvät käsin piirtäminen, kuvankäsittely ja 3D-kuvaaminen.The subject of this thesis originates from the author’s interest in technology and innovations. The author wanted to write his thesis about a topic that was very in-teresting to him. He wanted to create something new and, at the same time, im-prove his skills and show what he can do. The goal of this thesis is to develop product concepts which have interaction features and break the boundaries of traditional products.
The design problem of this thesis is breaking the boundaries of traditional products by creating an interaction with the user and the product, using the author’s own interaction framework, so that the product is more desirable because of its interactive features. In this thesis, he answers to the design problem with methods of concept design. His partner in concept design was the Young Skills cooperative. The author began his work from product needs he had found and answered to those needs with design, taking the interactive features into account in the design process.
In this thesis, the author discusses what is meant by interaction and he builds his own interaction framework. He shows what kind of interaction design projects have been done around the world and what kinds of interactive products there are on the market. Against this background, he then creates several product concepts, which he later reviews and grades. He conducts a user study on his best product concept and tests its features, such as interaction and haptic features, in practise. He develops his concept further based on the study and gives it a proper shape. Then, he further explains the concept features and reviews competing products and concepts.
As the end result, the author shows future concept scenarios. The scenario pic-tures answer the following questions in this order: why, how and what. In the sce-nario pictures, he combines hand drawing, image manipulation and 3d rendering
RUUMISSAATTO -PERIMÄTIEDOSTA PERFORMANSSIIN : -RAJAT KATOAVAT
No full textTämä opinnäyte on tapaustutkimus. Kirjallinen osuus käsittelee teatterigenrejen rajojen lainalaisuutta. Rajojen häviämistä. Työni lähtökohtana oli suuri kiinnostukseni esitystaiteeseen, performanssitaiteeseen ja kuvataiteen vaikutukseen teatterissa. Tavoitteeni oli poistua perinteisistä teatterikentän rajoista, tutkia niiden rajapintoja ja löytää vastaus kysymykseen "kuka sanelee rajat ja miksi?" Taiteellisessa osuudessa lähdin työskentelemään kuvien ja äänen kautta, tutkien samalla onko mahdollista synnyttää kohtauksia jotka syntyvät ja kuolevat, ilman kronologista järjestystä? Voiko taiteilijan siveltimen jälkeä jatkaa, vai onko se kuva joka ei muunnu? Yhtenä arvokkaana materiaalina minulla oli oman pappani haastattelumateriaali, jossa pappani Emil Honkanen, kertoo menneiden aikojen tietäjistä ja silmänkääntäjistä. Tämä opinnäyte mahdollisti myös materiaalin kokoamisen ja editoimisen levyksi, joka menee mahdollisesti Suomen Kirjallisuuden Seuran runousarkistoon. Taiteellinen osuus tähtäsi yhteen esitykseen, Taiteiden yöhön, Helsingin Seurasaaren Läntiseen pukkisaareen 22.8.2008. Tutkimuksen perusteella nykyteatteri elää kautta, jossa rajapintoja rikotaan, eikä kokeellisuus ole uutta teatterissa. Elämme performanssitaiteen kulta-aikaa, kokemuksellisuus on astunut vahvasti esitystaiteen ytimeen, rajat katoavat. Perimätieto ei ole arkisto, vaan käyttökelpoinen arvokas materiaali ja sen säilyttäminen ja arvo pitää tunnustaa.This thesis is a case study. The written part deals with the conformities of the border lines of different genres in the theatre. The vanishing of the border lines. The starting point for this work has been great interest in performance art and the effect of visual arts in the theatre. The aim has been to leave the field of the traditional theatre and instead to examine the boundaries and to find the answer to the question 'who sets up the boundaries and why?' In the artistic part the work was started by using pictures and sounds, at the same time examining if it were possible to make up scenes which arise and pass without the chronological order. Can one continue the artist's line with the paintbrush or is it an unchangeble picture? One of the most valuable materials used for this work was an interview of Emil Honkanen, made by the author´s grandfather, in which Emil Honkanen tells about the wise men and illusionists of the past times. This thesis also made the collecting and editing of the materials possible into a disc which will perhaps be accepted into the Finnish literature society's poetry archive. The artistic part of the work was one show in the Night of the Arts in Läntinen Pukkisaari-island, Helsinki on 22st of August 2008. According to the studies modern theatre lives in an age where the boundaries are bent and broken and something new is being tried. We are living in the golden age of performance art, the core of the performance is the experience and the border lines disappear. The inherited knowledge is not just an archive, but useful and valuable material and its value and the importance of its existence must be recognized.Kansitetussa versiossa mukana cd-levy. "Vedenhaltija" tarina. Kertoja: Emil Honkanen
A REVIEW OF THE GLOBAL ELDERLY RIGHTS FRAMEWORK AND THE PROSPECTIVE ROLES OF CONSTITUTIONAL COURTS IN AUGMENTING ELDERLY RIGHTS IN THE INDIAN JURIDICAL CONTEXT
No full textElderly persons play an instrumental role in not only fostering inclusive growth but also creating strong value chains that augment social cohesion. They promote intergenerational equity and facilitate the promotion, preservation, and dissemination of traditional knowledge. However, despite playing such critical roles, the elderly population, especially the poor elderly, become victims of income and health insecurity. Although many of the international legal instruments bestow plenary rights on elderly people, in reality, they have very few remedies to exhaust. The paper attempts to revisit the global elderly rights framework and strives to know whether the existing international normative safeguards are sufficient to promote elderly rights and whether constitutional courts in the Indian juridical context have any thoughtful role to play in consolidating the rights framework. The main argument that resonates across the length and breadth of the paper is that the implementation and monitoring of laws and policies governing elderly rights are weak and that there is an impending need to revamp the implementation and monitoring framework through the purposive role of constitutional courts. In light of the prevailing facts and the normative findings, the paper proposes that the constitutional courts in India must invoke their review and epistolary jurisdictions to ensure effective implementation and monitoring of elderly rights at the municipal level. It employs analytical and descriptive approaches to thematically correlate existing frameworks and to reach apriori generalisations
Relevance of Neighbouring Rights in India in the Context of the 2019 European Union Directive
No full text39-47Neighbouring rights, which form a subset of copyrights, are those subsidiary, yet parallel, rights that are accrued to a specific class of people that comprises not the actual authors but the neighbours to the authors. The class includes performers, broadcasters, producers and organizers, etc., and in some countries, makers of databases. Of late, as per European Union (EU) Directive No. 2019/790 dated 17th April 2019, the press publishers have also been included in the class. The primary objective of this paper is to revisit neighbouring rights in India in the context of the impugned provisions of the EU Directive on the neighbouring rights of press publishers. The paper tries to know whether it is a ripe time to extend such neighbouring rights to press publishers in India. To reach a logical conclusion, the paper reviews the existing literature on neighbouring rights jurisprudence in India in reference to the Copyright Act, 1957. It also assesses the international instruments governing neighbouring rights, especially the Rome Convention. Last but not the least, it critically reviews the impugned provisions of the 2019 Directive. The paper employs analytical and descriptive methods to testify facts and theoretical frameworks governing the subject
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