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Journal articles on the topic 'Electric-acoustic compositions'

Author: Grafiati

Published: 4 June 2021

Last updated: 20 February 2023

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1

Ko, Chantelle, and Lora Oehlberg. "Construction and Performance Applications of an Augmented Violin: TRAVIS II." Computer Music Journal 44, no. 2-3 (2020): 55–68. http://dx.doi.org/10.1162/comj_a_00563.

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Abstract We present the second iteration of a Touch-Responsive Augmented Violin Interface System, called TRAVIS II, and two compositions that demonstrate its expressivity. TRAVIS II is an augmented acoustic violin with touch sensors integrated into its 3-D printed fingerboard that track left-hand finger gestures in real time. The fingerboard has four strips of conductive PLA filament that produce an electric signal when fingers press down on each string. Although these sensors are physically robust, they are mechanically assembled and thus easy to replace if damaged. The performer can also tri

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2

Stepanov, Vladimir A., Pavel V. Demenkov, and Olga V. Nikulina. "Radiation hardening and optical properties of materials based on SiO2." Nuclear Energy and Technology 7, no. 2 (June 24, 2021): 145–50. http://dx.doi.org/10.3897/nucet.7.69926.

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Preliminary studies have shown that the optical absorption spectra of radiation-colored glasses correspond to the spectral behavior of the scattering losses of an optically inhomogeneous medium. The reasons for the same optical changes in glasses of different compositions are the radiation-induced electric charge separation in the structurally nano-inhomogeneous glass volume, polarization and formation of nanometer optical inhomogeneities. The authors of this work prove that the radiation changes in the mechanical and optical properties of silicate glasses are of the same nature. The performed

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Verheest, Frank. "Electrostatic nonlinear supersolitons in dusty plasmas." Journal of Plasma Physics 80, no. 6 (June 25, 2014): 787–93. http://dx.doi.org/10.1017/s0022377814000282.

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Using the Sagdeev pseudopotential method, the properties of negative dust-acoustic supersolitons are investigated in a plasma comprising cold negative dust and Boltzmann and Cairns non-thermal positive ions. Supersolitons have electric field profiles with additional wiggles on traditional bipolar structures, and their existence requires pseudopotentials having two sub-wells before a root is reached. Once the existence ranges are determined in parameter space, typical pseudopotential, supersoliton and electric field profiles can be easily generated. Their characteristics are very robust and yie

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4

Leiko, A. G., I. V. Kandrachuk, and A. O. Sviatnenko. "FEATURES OF ELECTROMECHANICAL ACOUSTIC ENERGY CONVERSION BY CYLINDRICAL PIEZOCERAMIC TRANSDUCERS WITH INTERNAL SCREENS IN COMPOSITION OF FLAT SYSTEMS." Devices and Methods of Measurements 9, no. 1 (March 20, 2018): 85–95. http://dx.doi.org/10.21122/2220-9506-2018-9-1-85-95.

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The problem of sound emission is considered by a system formed from cylindrical piezoceramic radiators with internal acoustically soft screens. Longitudinal axis of emitters lie in one plane. This system is characterized by the interaction of electric, mechanical and acoustic fields in the process of conversion electrical energy to acoustical energy and acoustic fields in the process of forming them in the environments. The purpose of the work is to determine the peculiarities of the electromechanical acoustic transformation of energy by cylindrical piezoceramic radiators with internal screens

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Lubet, Alex. "Disability Studies and Performing Arts Medicine." Medical Problems of Performing Artists 17, no. 2 (June 1, 2002): 59–62. http://dx.doi.org/10.21091/mppa.2002.2009.

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My introduction to the emerging field of disability studies (DS) was not by accident, but by injury. A professor of music composition and theory who uses piano and computer keyboards extensively, performs on acoustic guitar, electric bass, and mandolin, and handwrites a great deal, I have coped with pain and functional limitations from spinal and upper limb injuries for years. In 1999, on disability leave, recovering from neurosurgery for cervical disk herniation, I read a call for papers on disability and the performing arts. Intrigued, I immersed myself in DS literature, and began to partici

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6

Hoi, Bui Dinh, Nguyen Quang Bau, and Nguyen Dinh Nam. "Investigation of the magnetoresistivity in compositional superlattices under the influence of an intense electromagnetic wave." International Journal of Modern Physics B 30, no. 04 (February 10, 2016): 1650004. http://dx.doi.org/10.1142/s0217979216500041.

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The magnetoresistivity (MR) is theoretically calculated in a compositional semiconductor superlattice (CSSL), subjected to a crossed DC electric field and magnetic field, in the presence of an intense electromagnetic wave (EMW). The magnetic field is oriented along the growth direction of the CSSL and the electron–acoustic phonon interaction is taken into account at low temperature. Numerical results for the GaN/AlGaN CSSL show the Shubnikov–de Haas (SdH) oscillations in the MR whose period does not depend on the temperature and amplitude decreases with increasing temperature. The temperature

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7

Milić, B. S., and S. R. Krstić. "On the theory of electromagnetic waves and instabilities in multi-species weakly ionized plasmas in external d.c. electric field." Journal of Plasma Physics 38, no. 1 (August 1987): 53–77. http://dx.doi.org/10.1017/s002237780001240x.

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Electromagnetic modes with the electric vector of the wave lying in the plane defined by the wave vector and the external d.c. electric field are studied theoretically in weakly ionized plasmas with several sorts of ions. The corresponding instability criteria are also given. The analysis is based on kinetic equations with BGK model collision integrais for the one-particle distribution functions of the charged constituents (electrons and all sorts of ions). The linear theory of perturbation is applied. Special attention is given to the long-wave domain (modal wavelengths much larger than the e

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8

Noël, J. M. A., J. P. St.-Maurice, and P. L. Blelly. "Nonlinear model of short-scale electrodynamics in the auroral ionosphere." Annales Geophysicae 18, no. 9 (September 30, 2000): 1128–44. http://dx.doi.org/10.1007/s00585-000-1128-1.

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Abstract. The optical detection of auroral subarcs a few tens of m wide as well as the direct observation of shears several m/s per m over km to sub km scales by rocket instrumentation both indicate that violent and highly localized electrodynamics can occur at times in the auroral ionosphere over scales 100 m or less in width. These observations as well as the detection of unstable ion-acoustic waves observed by incoherent radars along the geomagnetic field lines has motivated us to develop a detailed time-dependent two-dimensional model of short-scale auroral electrodynamics that uses curren

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9

Noskov, M. Yu, M. M. Ginshparg, and N. S. Nesterov. "Results of tests on the indicator of external noise of electric locomotives in the standing time." Vestnik of the Railway Research Institute 76, no. 5 (October 28, 2017): 301–5. http://dx.doi.org/10.21780/2223-9731-2017-76-5-301-305.

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The authors of the Test Loop of the JSC “VNIIZhT” had conducted tests of mainline electric locomotives intended for handling freight trains on sections of the road electrified with alternating current at a voltage of 25 kV (electric locomotives of an alternating current). Tests were conducted in terms of the level of external noise at the standing time. The results of tests of AC electric locomotive, which was in a stationary mode, are presented in terms of the external noise index, and a methodology for performing these tests is described. As a result of the conducted researches, the article

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10

Voskoboinikov, Yakov. "George Gershwin’s jazz transcriptions in piano performance of academic tradition." Aspects of Historical Musicology 19, no. 19 (February 7, 2020): 429–48. http://dx.doi.org/10.34064/khnum2-19.25.

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Background. Today, jazz transcriptions of works by George Gershwin can be heard around the world. Works such as “The Man I Love”, “I Got Rhythm”, “Summertime”, “Liza”, “Fascinating Rhythm”, “Somebody Loves Me”, “Swanee”, included in the collection “Gershwin songs”, and also “Seven virtuoso etudes on the themes of G. Gershwin” by E. Wilde are performed by modern academic musicians. Thus, widely known performance versions of piano transcriptions “Gershwin songs” by M.-A. Hamelin, the song “The Man I Love” performed by A. Tharaud, P. Barton, and others famous performers. The evidence of growing i

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11

Sobek, Jakub, Michal Štafa, and Václav Veselý. "Fracture Events Localization by Numerical Simulations of Cementitious Composites." Key Engineering Materials 665 (September 2015): 253–56. http://dx.doi.org/10.4028/www.scientific.net/kem.665.253.

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This paper presents a numerical study of failure behavior of cementitious composite materials differing in their composition (aggregate size). A set of four different materials was tested in atypical splitting test geometry. During these tests, apart from the typical outputs such as the load–displacement curves, signals from failure events causing acoustic emission (AE) were recorded. However, reliability of the procedures of the failure events localization might seem questionable in some cases – therefore, the test evaluation procedures were accompanied by analyses using 3D numerical simulati

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12

Janusas, Pilkauskas, Janusas, and Palevicius. "Active PZT Composite Microfluidic Channel for Bioparticle Manipulation." Sensors 19, no. 9 (April 29, 2019): 2020. http://dx.doi.org/10.3390/s19092020.

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The concept of active microchannel for precise manipulation of particles in biomedicine is reported in this paper. A novel vibration-assisted thermal imprint method is proposed for effective formation of a microchannel network in the nanocomposite piezo polymer layer. In this method, bulk acoustic waves of different wavelengths excited in an imprinted microstructure enable it to function in trapping–patterning, valve, or free particle passing modes. Acoustic waves are excited using a special pattern of electrodes formed on its top surface and a single electric ground electrode formed on the bo

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13

Bauer, Michael. "Community noise from urban air mobility (UAM) and its control by traffic management." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 6 (August 1, 2021): 187–93. http://dx.doi.org/10.3397/in-2021-1333.

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The awareness about UAM is amplified by steadily growing numbers of air taxi concepts being announced. In general environmentally friendly by electric propulsion, community noise and en-route noise are still prominent open questions. Several studies for larger UAM aircraft, describing the acoustic characteristics of a variety of potential air taxi concepts, have been performed by the author. Due to the abovementioned multitude of different vehicle concepts and their multiple operational conditions, each of them shows individual sound characteristics. Therefore, further investigations of noise

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14

Jarzyna, Jadwiga A., Stanisław Baudzis, Mirosław Janowski, and Edyta Puskarczyk. "Geothermal Resources Recognition and Characterization on the Basis of Well Logging and Petrophysical Laboratory Data, Polish Case Studies." Energies 14, no. 4 (February 6, 2021): 850. http://dx.doi.org/10.3390/en14040850.

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Examples from the Polish clastic and carbonate reservoirs from the Central Polish Anticlinorium, Carpathians and Carpathian Foredeep are presented to illustrate possibilities of using well logging to geothermal resources recognition and characterization. Firstly, there was presented a short description of selected well logs and methodology of determination of petrophysical parameters useful in geothermal investigations: porosity, permeability, fracturing, mineral composition, elasticity of orogeny and mineralization of formation water from well logs. Special attention was allotted to spectral

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15

Danilchuk, Tatiana, Tatiana Danilchuk, Vera Ganina, and Vera Ganina. "Prospects of using extremely low doses of physical factors impact in food biotechnology." Foods and Raw Materials 6, no. 2 (December 20, 2018): 305–13. http://dx.doi.org/10.21603/2308-4057-2018-2-305-313.

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The paper deals with urgent issues of development of resource-saving methods of biotechnological processes intensification. The main purpose of the work is to show the efficiency of using extremely low doses of physical factors impact in food biotechnology. Acoustic and electric treatment was in various modes. Impact capacity did not exceed 10-4 W/kg. The duration of exposure ranged from 5 to 15 min. Barley grains enzymes and lactic acid microorganisms were subjected to treatment. Impact of vibration as a physical factor, its frequency is considered as a priority in controlling growth and bioc

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16

Serna, Julian A., Laura Rueda-Gensini, Daniela N. Céspedes-Valenzuela, Javier Cifuentes, Juan C. Cruz, and Carolina Muñoz-Camargo. "Recent Advances on Stimuli-Responsive Hydrogels Based on Tissue-Derived ECMs and Their Components: Towards Improving Functionality for Tissue Engineering and Controlled Drug Delivery." Polymers 13, no. 19 (September 25, 2021): 3263. http://dx.doi.org/10.3390/polym13193263.

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Due to their highly hydrophilic nature and compositional versatility, hydrogels have assumed a protagonic role in the development of physiologically relevant tissues for several biomedical applications, such as in vivo tissue replacement or regeneration and in vitro disease modeling. By forming interconnected polymeric networks, hydrogels can be loaded with therapeutic agents, small molecules, or cells to deliver them locally to specific tissues or act as scaffolds for hosting cellular development. Hydrogels derived from decellularized extracellular matrices (dECMs), in particular, have gained

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17

Qian, Kun, Zhichao Hou, Jie Liang, Ruixue Liu, and Dengke Sun. "Interior Sound Quality Prediction of Pure Electric Vehicles Based on Transfer Path Synthesis." Applied Sciences 11, no. 10 (May 12, 2021): 4385. http://dx.doi.org/10.3390/app11104385.

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The interior sound quality (SQ) of pure electric vehicles (PEVs) has become an important consideration for users purchasing vehicles. At present, it is insufficient to take the sound pressure level as the interior acoustics design index of PEVs. Transfer path analysis (TPA) and transfer path synthesis (TPS) that take the SQ of interior noise as the improvement target remains in the preliminary exploration stage. In this paper, objective psychoacoustic parameters of SQ were taken as evaluation indexes of interior PEV noise. A virtual interior SQ synthesis model was designed on the basis of TPA

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18

Fomin, Mikhail A., and Rashid M. Saitov. "Section types and oil prospects of the Bazhenov Formation in the Nadym-Ob interfluve." Georesursy 22, no. 3 (September 30, 2020): 2–11. http://dx.doi.org/10.18599/grs.2020.3.2-11.

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The article presents the results of studying the geological structure of the Bazhenov Formation in the Nadym-Ob interfluve of Western Siberia with the aim of predicting the oil content of this black shale stratum. As a result of interpretation of a wide range of well logging represented by electric, radioactive and acoustic logging, with subsequent matching of these results with paleontological definitions of micro- and macrofauna, the distribution of the Salym, Nizhnevartovsky and Tarkosalinsky types of sections of the Bazhenov Formation was clarified, transitional areas between them were ide

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19

Verheest, Frank, and Willy A. Hereman. "Collisions of acoustic solitons and their electric fields in plasmas at critical compositions." Journal of Plasma Physics 85, no. 1 (January 17, 2019). http://dx.doi.org/10.1017/s0022377818001368.

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Acoustic solitons obtained through a reductive perturbation scheme are normally governed by a Korteweg–de Vries (KdV) equation. In multispecies plasmas at critical compositions the coefficient of the quadratic nonlinearity vanishes. Extending the analytic treatment then leads to a modified KdV (mKdV) equation, which is characterized by a cubic nonlinearity and is even in the electrostatic potential. The mKdV equation admits solitons having opposite electrostatic polarities, in contrast to KdV solitons which can only be of one polarity at a time. A Hirota formalism has been used to derive the t

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20

Koptjaev, Evgenij, Roman Evseev, and Vyacheslav Balashevich. "Electric Propulsion system on the basis of the matrix direct frequency converter." On-line Journal "Naukovedenie" 7, no. 2 (April 2015). http://dx.doi.org/10.15862/111tvn215.

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Many of today's ships are equipped with electric propulsion systems, which leads to the relevance of the article. The general trend is the use of electric propulsion systems AC, due to a more robust design of an asynchronous motor and slightly better weight and dimensions. The use of asynchronous motor requires a static frequency converter for speed control and soft start. In the currently used PWM converters different types. Opportunities classical direct frequency converters are limited due to a number of fundamental shortcomings, particularly the lack of quality of the output voltage and th

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21

Northlich, William. "The BlipVert Method." Intonations, August 29, 2018, 1–15. http://dx.doi.org/10.29173/inton25.

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The confluence of composition and performance is a compelling phenomenon which confronts many 21st century electronic music artists, brought about primarily through an independent “DiY” ethos to creativity and the ubiquity of advanced musical, and non-musical, technology. Techniques of software programming, improvisation, reconstitution of electric and acoustic instruments, sampling, and manipulation of audio in a live setting (to name a few) may all find a place in an artist’s methodology regardless of style. It may be even be said that the techniques employed by an artist delineate the style

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22

Dillon, Steve. "Jam2jam." M/C Journal 9, no. 6 (December 1, 2006). http://dx.doi.org/10.5204/mcj.2683.

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   Introduction Generative algorithms have been used for many years by computer musicians like Iannis Xenakis (Xenakis) and David Cope (Cope) to make complex electronic music composition. Advances in computer technology have made it possible to design music algorithms based upon specific pitch, timbre and rhythmic qualities that can be manipulated in real time with a simple interface that a child can control.jam2jam (Brown, Sorensen, & Dillon) is a shareware program developed in java that uses these ideas and involves what we have called Networked Improvisation, which ‘ca

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23

Ryan, Robin Ann. "Forest as Place in the Album "Canopy": Culturalising Nature or Naturalising Culture?" M/C Journal 19, no. 3 (June 22, 2016). http://dx.doi.org/10.5204/mcj.1096.

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Every act of art is able to reveal, balance and revive the relations between a territory and its inhabitants (François Davin, Southern Forest Sculpture Walk Catalogue)Introducing the Understory Art in Nature TrailIn February 2015, a colossal wildfire destroyed 98,300 hectares of farm and bushland surrounding the town of Northcliffe, located 365 km south of Perth, Western Australia (WA). As the largest fire in the recorded history of the southwest region (Southern Forest Arts, After the Burn 8), the disaster attracted national attention however the extraordinary contribution of local knowledge

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24

Collins, Steve. "Amen to That." M/C Journal 10, no. 2 (May 1, 2007). http://dx.doi.org/10.5204/mcj.2638.

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   In 1956, John Cage predicted that “in the future, records will be made from records” (Duffel, 202). Certainly, musical creativity has always involved a certain amount of appropriation and adaptation of previous works. For example, Vivaldi appropriated and adapted the “Cum sancto spiritu” fugue of Ruggieri’s Gloria (Burnett, 4; Forbes, 261). If stuck for a guitar solo on stage, Keith Richards admits that he’ll adapt Buddy Holly for his own purposes (Street, 135). Similarly, Nirvana adapted the opening riff from Killing Jokes’ “Eighties” for their song “Come as You Are”. Mus

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