5,401 research outputs found
The Apollo 14 docking anomaly
Six docking attempts were required to achieve initial latch engagement during the Apollo 14 translunar docking event. Although subsequent performance of the docking hardware was normal, the docking probe was retained for a thorough postflight investigation. Pertinent design details of the docking system, the mission events related to the anomaly, and a discussion of the postflight investigation of the cause of the anomaly are presented
Baker domains for Newton's method
We show that there exists an entire function without finite asymptotic values
for which the associated Newton function tends to infinity in some invariant
domain. The question whether such a function exists had been raised by Douady.Comment: 8 page
CURRENT ISSUES AFFECTING TRADE AND TRADE POLICY: AN ANNOTATED LITERATURE REVIEW
This review provides a base of literature describing current issues and research on the impacts of lobalization and the industrialization of agriculture and recent approaches to analyze and model agricultural trade and trade policies. Three key factors of the survey are differentiated goods, global economic integration and international supply chain linkages. The review covers 182 publications, which are presented alphabetically by author with a brief annotation describing how it relates to the above criteria. The articles are also indexed by keyword. A brief summary highlights the documented literature and includes a series of issues for future discussion and research.International Relations/Trade,
Jack Maggs : A Differend Convict(ion) by Peter Carey
This thesis is an analysis of Peter Carey\u27s novel Jack Maggs and its attempt at writing back to Charles Dickens\u27 Great Expectations. I will analyse the (de)construction of language games between Jack Maggs and Great Expectations; show how Carey as a post-colonial settler writer writes back to the centre, to Dickens\u27 text as a canonical Victorian novel, through intergrating the very notion of the Victorian novel, and in his own terms giving the convict a history . I will explore how Carey writes competing language games of science and narrative (as identified by Lyotard) within Jack Maggs and how they produce what Lyotard calls a differend within history: Tobias Oates\u27 construction of Jack Maggs\u27 history through the scientific language game of Animal Magnetism, which relies on the notion of a centre and concrete metaphors to make sense, is in competition with Jack Maggs\u27 private history constructed through narrative language games, unrestricted by limiting procedures. I will discuss the aporia of identity for the settler writer, which is internally (Slemon, 1997, p.l09) inscribed within the text, and within Jack Maggs; how the process of identity is not closed within or outside the text; how Carey\u27s Australian identities are formed without resorting to nationalist notions of closure and purity. The purity of nation state, which is legitimated by a meta-narrative of History, is no longer credible in Carey\u27s postmodern/post colonial enceinte. Finally, I will show how Carey moves to cut symbolic ties with England to form an Australian republic, which is acceptant of heterogeneous and fluid notions of identity: of Australian national identities without a fixed notion of the nation state; a history of Australia which incorporates its fictions and its truths ; a notion of history which is constructed from narrative language games and scientific language games
Canât Let Go: Anxiety, Ontological Security, and French Foreign Policy Decision-Making During the Hollande Administration
Why does France continue to intervene militarily in sub-Saharan Africa despite repeated commitments, both in practice and in rhetoric, to disengage and adhere to strict non-intervention? Although many accounts of Franceâs African security policy have been put forth, few have analyzed French foreign policy choices through the decision-making process itself, let alone exclusively applied International Relations (IR) theories to understand those decisions. Synthesizing a narrative approach with an ontological security interpretation, which understands states as having identity security needs on top of their physical ones, I propose an alternative framework for understanding Franceâs security-seeking, threats to identity, and how they shape the foreign policy decision-making process. I assess the impact âanxietyâ had upon the interventionist debates surrounding two recent crises during the Hollande administration: the terrorist threat in Mali and the humanitarian catastrophe in the Central African Republic (CAR) in 2013. My conclusions are two-fold. First, anxiety can be seen as both an inhibitor and enabler of change. Anxiety over being labeled a neocolonial power was initially conducive to bolstering the normalization of Franco-African security relations initiated at the start of the 21st century and advocated by the Hollande administration. However, as the meaning of each crisis was discursively debated and subsequently re-interpreted, the policy of non-interference became a source of anxiety itself; ontological insecurity, in each case, enabled the behavioral change that anxiety initially prevented. Second, French actors were conflicted over having to choose between contradictory identity preferences in their response to the crises. As such, decision-makers activated narratives surrounding Franceâs role as a puissance dâinfluence, using historical analogies and references to proximity in order to quiet anxieties, smooth out dissonance, and restore ontological security. In the end, I argue that French interventions in sub-Saharan Africa are a form of routinized foreign policy practice, and it is through these routines that France secures its identity as a security provider on the African continent, a democracy promoter, and a human rights defender. Without interventions, France risks losing the ability to satisfy its very self-image of being an important player in the international system
Resonances, radiation pressure and optical scattering phenomena of drops and bubbles
Acoustic levitation and the response of fluid spheres to spherical harmonic projections of the radiation pressure are described. Simplified discussions of the projections are given. A relationship between the tangential radiation stress and the Konstantinov effect is introduced and fundamental streaming patterns for drops are predicted. Experiments on the forced shape oscillation of drops are described and photographs of drop fission are displayed. Photographs of critical angle and glory scattering by bubbles and rainbow scattering by drops are displayed
Dynamical energy analysis on mesh grids: a new tool for describing the vibro-acoustic response of complex mechanical structures
We present a new approach for modelling noise and vibration in complex mechanical structures in the mid-to-high frequency regime. It is based on a dynamical energy analysis (DEA) formulation which extends standard techniques such as statistical energy analysis (SEA) towards non-diffusive wave fields. DEA takes into account the full directionality of the wave field and makes sub-structuring obsolete. It can thus be implemented on mesh grids commonly used, for example, in the finite element method (FEM). The resulting mesh based formulation of DEA can be implemented very efficiently using discrete flow mapping (DFM) as detailed in [1] and described here for applications in vibro-acoustics
Recruitment and retention of farm owners and workers for a six-month prospective injury study in New Zealand: a feasibility study
<p>Abstract</p> <p>Background</p> <p>Agricultural workers experience high rates of occupational injury. There is a lack of analytic studies which provide detailed occupational exposure information to inform intervention development.</p> <p>Methods</p> <p>A feasibility study simulating a six month prospective cohort study was designed and undertaken. The levels of farm and worker participation and retention were analysed to determine the feasibility of the methods for wider deployment.</p> <p>Results</p> <p>Recruitment levels were comparable with other studies, with 24% of farms and 36% of non-owner workers participating. Once recruited, retention was high at 85% and 86% respectively.</p> <p>Conclusions</p> <p>The main challenges identified were in the recruitment process. Once recruited, farms and workers tended to complete the study, indicating that prospective studies in this the agricultural workforce may be feasible. Issues encountered and potential solutions for future studies are discussed.</p
Remote sensing applications in forestry - The development of an earth resources information system using aerial photographs and digital computers Annual progress report
Earth resources information system using aerial photographs and digital computer
Remote sensing applications in forestry. The development of an earth resources information system using aerial photographs and digital computers photographs and digital computers
Remote aerial sensing and automatic mapping for forest resources information syste
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