Geometry of motion and nutation stability of free axisymmetric variable mass systems

In classical mechanics, the ‘geometry of motion’ refers to a development to visualize the motion of freely spinning bodies. In this paper, such an approach of studying the rotational motion of axisymmetric variable mass systems is developed. An analytic solution to the second Euler angle characterizing nutation naturally falls out of this method, without explicitly solving the nonlinear differential equations of motion. This is used to examine the coning motion of a free axisymmetric cylinder subject to three idealized models of mass loss and new insight into their rotational stability is presented. It is seen that the angular speeds for some configurations of these cylinders grow without bounds. In spite of this phenomenon, all configurations explored here are seen to exhibit nutational stability, a desirable property in solid rocket motors

Finding Bollywood:A Comparative Analysis of Bollywood Tourism in a Transnational Context

As the global appeal of Bollywood continues to grow, Bollywood tourism is increasingly becoming popular among its fans. But what inspires and motivates these fans to conduct these trips to places beyond their regular scope? What kind of experiences do they have on site? And in the end, how do they evaluate their experiences? This dissertation attempts to understand these questions through empirical research in varying transnational contexts. By examining the diasporic consumption of popular cinema and their cinematic imagination of their Homeland, the embodied experiences of filmi song tourists, and finally, by locating the experience of Indianness at Bollywood Parks Dubai, this dissertation has considered a variety of media formats to generate, analyze and infer from interview data and observations aiding theoretical refinement of the phenomenon. In doing so, this dissertation attempts to place Bollywood tourism practices within larger discussions of contemporary culture and make sense of how and why Bollywood tourists are becoming important within the wider tourism discourse

Bollywood tourism among the Hindustanis in the Netherlands::a transnational perspective

For decades, the ‘make-believe’ world of Bollywood has created elaborate imaginaries of India. A sizable part of its audience consists of diasporic communities, who not only consume Bollywood movies for entertainment but also as a way to stay connected with their Indian heritage. This chapter closely looks at one such diasporic community, namely the Dutch Hindustanis, investigating how Bollywood cinema affects their image of India, and how influential Bollywood cinema is in influencing their travel decisions to India. In-depth interviews indicate that Bollywood is a dominant cultural source for defining the respondents’ relationship with India. Moreover, the repeated consumption of Bollywood cinema stirs the desire to actually travel to India, seldom in search of ‘home’, but to visit sites associated with multiple Bollywood movies. Bollywood cinema being from their ‘distant homeland’ also incentivizes their travels to India thereby making it a meaningful experience. This chapter contributes to film (and) tourism research by introducing the concept of ‘cinematic itinerary’ to refer to these comprehensive film tourism practices

Angular momentum of free variable mass systems is partially conserved

Variable mass systems are a classic example of open systems in classical mechanics with rockets being a standard practical example. Due to the changing mass, the angular momentum of these systems is not generally conserved. Here, we show that the angular momentum vector of a free variable mass system is fixed in inertial space and, thus, is a partially conserved quantity. It is well known that such conservation rules allow simpler approaches to solving the equations of motion. This is demonstrated by using a graphical technique to obtain an analytic solution for the second Euler angle that characterizes nutation in spinning bodies

Bollywood tourism among the Hindustanis in the Netherlands::a transnational perspective

For decades, the ‘make-believe’ world of Bollywood has created elaborate imaginaries of India. A sizable part of its audience consists of diasporic communities, who not only consume Bollywood movies for entertainment but also as a way to stay connected with their Indian heritage. This chapter closely looks at one such diasporic community, namely the Dutch Hindustanis, investigating how Bollywood cinema affects their image of India, and how influential Bollywood cinema is in influencing their travel decisions to India. In-depth interviews indicate that Bollywood is a dominant cultural source for defining the respondents’ relationship with India. Moreover, the repeated consumption of Bollywood cinema stirs the desire to actually travel to India, seldom in search of ‘home’, but to visit sites associated with multiple Bollywood movies. Bollywood cinema being from their ‘distant homeland’ also incentivizes their travels to India thereby making it a meaningful experience. This chapter contributes to film (and) tourism research by introducing the concept of ‘cinematic itinerary’ to refer to these comprehensive film tourism practices

The Oxygen-Containing Fused Heterocyclic Compounds

The oxygen-containing heterocycles are an important class of compounds in organic chemistry. These compounds are used as drugs (coumarin and oxazole), solvent (tetrahydrofuran), flavors, and fragrances (lactones). The fusion of aromatic ring to the oxygen-heterocycle will change the electron density; thereby, the physical/chemical/biological properties will alter. Also, the preparation of these fused molecules will require a different strategy/method/reaction condition. The topics covered in this chapter are the general synthetic methods and uses of fused heterocyclic compounds containing oxygen as a heteroatom. The derivatization of the primary scaffold is excluded from this chapter. Some of the fused compounds are coumarin (benzopyrans) and piclozotan (benzoxazepines)

iiWAS - Towards Context-Based Tracking of Web Services Security.

With the increasing popularity of Web services and increasing complexity of users\u27 needs, there has been a renewed interest in Web services composition. However, composition faces a major obstacle, which is the content heterogeneity of the contexts featuring the component Web services of a composite service. An unawareness or poor consideration of this heterogeneity during Web services composition and execution definitely results in a lack of the quality and relevancy of information that is deemed appropriate for tracking the composition, monitoring the execution, and handling exceptions. An earlier paper had provided a 3-level approach for content reconciliation of Web services\u27 contexts using ontologies. This paper extends the 3-level approach by focusing on the security breaches that threaten the integrity of the context of Web services, and proposes appropriate means to achieve this integrity

Business Artifacts for E-Business Interoperability

Traditional solutions to address interoperability issues are mainly process-centric so that consistent interactions among collaborating enterprises are ensured. These solutions examine interoperability from a technological perspective with focus on exchanging information messages between distributed and heterogeneous applications. However, interoperability from a business perspective has been overlooked in the past due to the complexity of reconciling diverse business strategies, organizational constraints, and IT infrastructures. Business interoperability denotes the ability of diverse enterprises to collaborate together to coproduce added-value products and services. In this chapter, a new line of thinking is promoted whereby interoperability is data-centric instead of process-centric. Business interoperability is dealt with by adopting business artifacts that are able to cross organizational boundaries, and by introducing a stack of three layers - strategy, service, and resource. Artifacts are self-contained business records that include attributes, states, and life cycles that reflect the changes in these states. The artifact concept not only describes a business entity, but also encompasses knowledge about what to process without explaining how to do it. The shift from processes to artifacts makes business interoperability quite simple\u27\u27 to deploy and renders collaboration easy to manage and analyze. The chapter also introduces several interaction patterns that regulate the exchange of artifacts between enterprises. The ideas and proposals in this chapter are discussed via a realistic case-study to demonstrate how business people can seamlessly manage their day-to-day activities and intuitively construct interoperable and sustainable collaborations at the business and technological levels