317 research outputs found
Essential Matlab and Octave
No full text""This is an excellent book for anyone approaching MATLAB or Octave for the first time. The pleasant language used throughout creates the sensation of having the author by your side. … An interesting feature are the examples used to explain the use of functions and operations. … compared to similar texts on Octave and MATLAB, the author introduces at an early stage how to produce line and surface plots with MATLAB and Octave. It is very attractive to students to be able to quickly produce plots with scientific journal quality. … The margin notes are great as they can also work as virtual book
An Analysis of Octave Ségur’s Translation of Maria Edgeworth’s Belinda (1801) into French
No full textThe Anglo-Irish author Maria Edgeworth (1768-1849) became very famous in Britain at the turn of the nineteenth century thanks to her pedagogical works, regionalist and feminocentric novels, whose translations were eagerly awaited on the Continent. This paper analyses a hitherto totally unexplored field of research within Edgeworth studies: the French translation of Edgeworth’s most important English society novel, Belinda (1801), from the point of view of gender and translation studies. For this purpose, we will take into account the particular context of the work, its main features in English and French, and the particular procedures adopted by the French translator to transform Edgeworth’s tale into moral fiction for women. Octave-Henri Gabriel, comte de Ségur, adapts Belinda to the taste of French readers by sacrificing both the macrostructural and microstructural features of the source text. Despite the success of the book in France, Bélinde (1802) is not comparable to the author’s original idea, as the textual history of Belinda reveals. Edgeworth’s book deals with controversial issues at that time and features her most memorable female character, which is distorted in the French text. Ultimately, this paper confirms that the publication of Ségur’s translation has consequences on the transmission of Edgeworth’s oeuvre in other European literatures and on her image as a feminist writer
Stringed keyboard instruments at nominal octave pitch
No full textThe twentieth-century revival of interest in historic stringed keyboard instruments has generally focused on the large, elaborately decorated, instruments – predominantly harpsichords. Other historic keyboard instruments have not received the same level of organological research, particularly those which are small, often-anonymous, high-pitch and modestly decorated.
From the mid-fourteenth century to the end of the eighteenth century stringed keyboard instruments of various types were made and importantly at a range of pitches. One of the pitch levels to be identified in this period is ‘octave pitch’. Instruments at this pitch level sound one octave higher than other contemporary or later instruments. Today these instruments would sound at approximately a=880Hz rather than a=440Hz.
The evidence for the earliest identified stringed keyboard instrument, the eschaquier, will be re-evaluated and a hypothetical reconstruction of the instrument presented along with a suggestion of its likely pitch level. Fifteenth century depictions of stringed keyboard instrument will be analysed and suggestions made regarding their likely original pitch level and the prevalence of octave pitch. From the early sixteenth century through to the mid-seventeenth century large numbers of stringed keyboard instruments survive from across Europe, including many at octave pitch. The types of surviving octave-pitch stringed keyboard instrument from the different regions of Europe will be described and analysed and compared with larger lower-pitch stringed keyboard instruments. Instruments from the Italian states will be analysed in detail as there are large numbers of surviving octave pitch instruments from this area. The Flemish and Germanic traditions will also be analysed in detail as secondary octave-pitch levels appear to have existed in these regions. These secondary octave-pitch levels require a new pitch level terminology and this will be presented.
The stringing of surviving instruments will be analysed, in relation to Pythagorean mathematical principles, as will their unique timbral, acoustic and pitch features. Based on this material the author will present the hypothesis that all stringed keyboard instruments originated in an octave-pitch design. The popularity and use of these instruments will also be discussed with reference to historical inventories, treatises and contemporary paintings. Finally, the pitch level became associated with small novelty instruments which will be discussed.
The reasons for the decline of octave pitch in the seventeenth century will be discussed as will the second wave of octave-pitch instruments in the eighteenth century. Throughout these five centuries of keyboard history it is clear that musicians invariably had access to a rich variety of types and pitch levels of keyboard instrument, particularly those at octave pitch
Integrated Photonic Interposers for Processing Octave-Spanning Microresonator Frequency Combs
No full textWe demonstrate multiple silicon-nitride nanophotonic elements for on-chip processing of octave-spanning microresonator frequency combs. Dichroic filters, multimode interferometers, and tunable add-drop microring filters are shown along with soliton microcombs generated on a bilayer photonic chip. (C) 2020 The Author(s)LSMLPQ
Octave-Spanning Supercontinuum Generation in Thermally Deposited As2S3 Waveguide on Wet-etched SiO2 Structure
No full textWe report octave -spanning supercontinuum generation in etch -less As2S3 film waveguide platform. The spectrum is extended from 1.05 to 2.71 p.m pumped by 45 pJ pulse energy at 1.56 p.m telecommunication wavelength. (.0 2019 The Author(s
Forces and Moralities by Octave Mirbeau
No full textOctave Mirbeau was an anarchist and radical writer who is known today for his powerful indictments of French society. He
wrote to revenge this society for his upbringing. That's why the article treats of the dramaturgy of the author of The Torture
Garden set within the wide frames of expressionism. A key enabling to decode the unconventional writings of Mirbeau lies
in the plane of subjectivity, and specially in the Farces and Moralities, considered as dark comedies, in grotesque style. The
article corroborates the contention about the original character of Mirbeau's Farces affecting the expressionistic aesthetics
Generation of Sub-900-μJ Supercontinuum With a Two-Octave Bandwidth Based on Induced Phase Modulation in Argon-Filled Hollow Fiber
No full textWe succeeded in generating 860-μJ pulses spanning the range from 270 to 1000 nm, the highest energy two-octave pulses demonstrated to date, by utilizing not only self-phase modulation but also induced phase modulation based on nonlinear co-propagation of fundamental and second-harmonic femtosecond pulses in a pressure gradient Ar-gas-filled hollow fiber. This corresponds to 1.5-fs, 0.3-TW, 0.65-cycle transform-limited pulses at a 1-kHz repetition rate, which serves as an optical source for ultrafast ultrabroadband spectroscopy and quantum control as well as attosecond science and technology
Enhancement of VECTOR method by adapting OCTAVE for risk analysis in legacy system migration
No full textRisk is involved in all phases of the software life cycle, and due to these risks, software can face various problems that can cause the different negative outcomes and sometimes in extreme cases failure of the software. Most of these risks lie in the migration of legacy software process. These risks can cause to create many problems, and in the worst case they can cause to failure of migration project. This project explores different types of risk analysis methods like CRAMM, CORAS, OCTAVE and VECTOR. After comparing of all these methods the author choose two suitable of these methods (OCTAVE and VECTOR). With using these two methods the project also suggests the enhanced EOV method for risk analysis in migration of legacy softwar
A Comparative Evaluation of Matlab, Octave, FreeMat, Scilab, and R on Tara
No full textMatlab is the most popular commercial package for numerical computations in mathematics, statistics, the sciences, engineering, and other fields. Octave, FreeMat and Scilab are free numerical computational packages that have many of the same features as Matlab. R is a free Statistical package. Although R does not belong to the same line of products as Matlab, it is similar to Matlab in its computational capabilities. These packages are available to download on the Linux, Windows, and Mac OS X operating systems. We investigate whether they are viable alternatives to Matlab for uses in research and teaching. We compare the results on the cluster tara in the UMBC High Performance Computing Facility with 86 nodes, each with two quadcore Intel Nehalem processors and 24 GB of memory. The tests focused on usability lead us to conclude that the package Octave is the most compatible with Matlab, since it uses the same syntax and has the native capability of running m-files. Both FreeMat and Scilab were hampered by somewhat different syntax or function names and some missing functions. The tests focused on efficiency show that Matlab and Octave are fundamentally able to solve problems of the same size and with equivalent efficiency
in absolute times, except in one test dealing with a very large problem. FreeMat and also Scilab exhibit significant limitations on the problem size and the efficiency of the problems they can solve in our tests. The syntax of R is significantly different from that
of Matlab, Octave, FreeMat, and Scilab. R too exhibited certain limitations on the size of problems it could solve for and its performance was similar to that of FreeMat and Scilab. In summary, we conclude that Octave is the best viable alternative to Matlab because it was not only fully compatible (in terms of syntax) with Matlab in our tests, but it also performed very well.The first and second author acknowledge financial support from the UMBC High Performance Computing Facility. The third author acknowledges financial support from the Department of Mathematics and Statistics at UMBC.We are indebted to Neeraj Sharma, whose M.S. thesis first formalized the comparison between the software packages. The hardware used in the computational studies is part of the UMBC High Performance Computing Facility (HPCF). The facility is supported by the U.S. National Science Foundation through the MRI program (grant no. CNS–0821258) and the SCREMS program (grant no. DMS– 0821311), with additional substantial support from the University of Maryland, Baltimore County (UMBC).https://userpages.umbc.edu/~gobbert/papers/PopuriHPCF2012.pd
A Comparison of Solving the Poisson Equation Using Several Numerical Methods in Matlab and Octave on the Cluster maya
No full textSystems of linear equations resulting from partial differential equations arise frequently in many phenomena such as heat, sound, and fluid flow. We apply the finite difference method to the Poisson equation with homogeneous Dirichlet boundary conditions. This yields in a system of linear equations with a large sparse system matrix that is a classical test problem for comparing direct and iterative linear solvers. We compare the performance of Gaussian elimination, three classical iterative methods, and the
conjugate gradient method in both Matlab and Octave. Although Gaussian elimination is fastest and can solve large problems, it eventually runs out of memory. If very large problems need to be solved, the conjugate gradient method is available, but preconditioning is vital to keep run times reasonable. Both Matlab and Octave perform well with intermediate mesh resolutions; however, Matlab is eventually able to solve larger problems than Octave and runs moderately faster.The hardware used in the computational studies is part of the UMBC High Performance Computing Facility (HPCF). The facility is supported by the U.S. National Science Foundation through the MRI program (grant nos. CNS{0821258 and CNS{1228778) and the SCREMS program (grant no. DMS{0821311), with additional substantial support from the University of Maryland, Baltimore County (UMBC). See www.umbc.edu/hpcf for more information on HPCF and the projects using its resources. This project began as the class project of the rst author for Math 630 Numerical Linear Algebra during the Spring 2014 semester [6]. The second
author acknowledges nancial support as HPCF RA.https://userpages.umbc.edu/~gobbert/papers/SwatskiEtAl_HPCF2014.pd
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