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Articles de revues sur le sujet « Villari »

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Auteur : Grafiati
Publié le 10 mars 2023

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1

Riesgo, Graciela, Laura Elbaile, Javier Carrizo, Rosario Díaz Crespo, María Ángeles García, Yadir Torres et José Ángel García. « Villari Effect at Low Strain in Magnetoactive Materials ». Materials 13, no 11 (29 mai 2020) : 2472. http://dx.doi.org/10.3390/ma13112472.

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Magnetic composites of soft magnetic FeGa particles embedded in a silicone matrix have been synthesized. The Villari effect has been studied depending on the size and concentration of the particles and on the magnetic state of the composite. The results indicate a decrease in the Villari effect when the concentration of the magnetic particles increases. These results suggest a relationship between the Villari effect and the mechanical properties of the composites. The Young’s modulus of the composites has been obtained by microindentation and their values related to the intensity and slope of the Villari signals. The results are explained on the basis that the reduction in the cross section of the composite when submitted to stress is the main origin of the variation of the magnetic flux in the Villari effect in this kind of composite. It has also been obtained that the magnetic state of the composite plays an important role in the Villari signal. When the magnetization of the composite is greater, the magnetic flux across the composite is greater too and, so, the same reduction in the cross section originates a greater Villari signal.
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2

A. Davis, John. « Revisiting Pasquale Villani's Mezzogiorno tra riforme e rivoluzione ». SOCIETÀ E STORIA, no 171 (février 2021) : 129–41. http://dx.doi.org/10.3280/ss2021-171006.

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Il saggio intende sottolineare l'originalità e la coerenza interpretativa del contributo di Pasquale Villani alla storia del mezzogiorno d'Italia, e inoltre a mettere in luce le ragioni per cui lo storico insisteva sull'importanza costitutiva del secolo precedente l'Unità. Le idee di Villani - esponente della generazione dei giovani meridionalisti del dopoguerra - e il suo programma storiografico presero forma sullo sfondo della seconda guerra mondiale, della caduta del fascismo e delle rivolte contadine. La sua prospettiva storiografica si definì alla luce del dibattito condotto da Rosario Romeo, Antonio Gramsci, Rosario Villari, Emilio Sereni e Ruggiero Romano. Vicino a Sereni, a Villari e a Romano, Villani seguì tuttavia una propria linea interpretativa che acquistò valore e rilevanza grazie alla capacità di avvicinare giovani allievi e mobilitarne le forze nella direzione di un progetto ambizioso e definito: studiare e mappare la transizione del Mezzogiorno rurale dall'antico regime all'epoca contemporanea. Tali studi, oltre a costituire un tributo alla statura intellettuale di Villani, rappresentano un fondamentale punto di partenza per la comprensione della storia del Mezzogiorno prima e dopo l'Unità.
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Gentiloni Silveri, Umberto. « Briefly remembering Rosario Villari (1925–2017) ». Journal of Modern Italian Studies 23, no 3 (27 mai 2018) : 229–33. http://dx.doi.org/10.1080/1354571x.2018.1459405.

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Bieńkowski, Adam. « Magnetoelastic Villari effect in Mn–Zn ferrites ». Journal of Magnetism and Magnetic Materials 215-216 (juin 2000) : 231–33. http://dx.doi.org/10.1016/s0304-8853(00)00124-4.

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Bie?kowski, A., R. Szewczyk et R. Kolano. « Magnetoelastic Villari Effect in Nanocrystalline Fe73.5Nb3Cu1Si13.5B9 Alloy ». physica status solidi (a) 189, no 3 (février 2002) : 821–24. http://dx.doi.org/10.1002/1521-396x(200202)189:3<821 ::aid-pssa821>3.0.co;2-n.

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KONSTANTINOV, Konstantin Mikhailovich, Alexander Albertovich KIRGUEV et Maksim Sergeevich KHOROSHIKH. « Petromagnetic heterogeneities of stress : applied corollary of Villari effect ». ARCTIC AND SUBARCTIC NATURAL RESOURCES 24, no 2 (2018) : 29–38. http://dx.doi.org/10.31242/2618-9712-2018-24-2-29-38.

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Zhao, X., et D. G. Lord. « Application of the Villari effect to electric power harvesting ». Journal of Applied Physics 99, no 8 (15 avril 2006) : 08M703. http://dx.doi.org/10.1063/1.2165133.

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8

Wang, H. B., et Z. H. Feng. « A Highly Sensitive Magnetometer Based on the Villari Effect ». IEEE Transactions on Magnetics 49, no 4 (avril 2013) : 1327–33. http://dx.doi.org/10.1109/tmag.2012.2220559.

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9

Mihalca, I., A. Ercuta et C. Ionascu. « The Villari effect in Fe–Cr–B amorphous ribbons ». Sensors and Actuators A : Physical 106, no 1-3 (septembre 2003) : 61–64. http://dx.doi.org/10.1016/s0924-4247(03)00134-1.

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10

ElBidweihy, Hatem, Edward Della Torre, Yi Jin, Lawrence H. Bennett et Mohammadreza Ghahremani. « A Preisach-Type Magnetostriction Model for Materials Exhibiting Villari Reversal ». IEEE Transactions on Magnetics 48, no 11 (novembre 2012) : 3360–62. http://dx.doi.org/10.1109/tmag.2012.2200880.

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11

Szewczyk, R., A. Bienkowski et R. Kolano. « Influence of nanocrystalization on magnetoelastic Villari effect in Fe73.5Nb3Cu1Si13.5B9 alloy ». Crystal Research and Technology 38, no 35 (avril 2003) : 320–24. http://dx.doi.org/10.1002/crat.200310038.

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12

Bao, Sheng, Yan Li, Zhengye Zhao, Tao Jiang et Huangjie Lou. « Experimental Analysis of the Piezomagnetic Properties of Ferromagnetic Steels Subjected To Cyclic Tensile Stress ». Insight - Non-Destructive Testing and Condition Monitoring 64, no 6 (1 juin 2022) : 334–40. http://dx.doi.org/10.1784/insi.2022.64.6.334.

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The objective of this research is to investigate the evolution of the piezomagnetic field of 30CrNiMo8 steel under cyclic tensile stress with variable amplitudes and asymmetrical cyclic tensile stress. The piezomagnetic field signal of an initially undemagnetised 30CrNiMo8 steel specimen was recorded simultaneously during the whole loading process. It was found that the magnetic field variation is in contrast to the variation of the applied stress during the elastic stage. However, the magnetic field variation started to be consistent with the variation of the applied stress when approaching and entering the plastic stage. A reasonable explanation was given for understanding this phenomenon. The Villari reversal point and the tail reversal point occurred during the plastic stage, which can be used to characterise the transition state from the elastic to plastic stage. The variations of the Villari reversal point and the tail reversal point under cyclic tensile stress with variable amplitudes were slightly different from those under asymmetrical cyclic tensile stress.
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13

Kaleta, J., et J. Žebracki. « APPLICATION OF THE VILLARI EFFECT IN A FATIGUE EXAMINATION OF NICKEL ». Fatigue & ; Fracture of Engineering Materials and Structures 19, no 12 (décembre 1996) : 1435–43. http://dx.doi.org/10.1111/j.1460-2695.1996.tb00179.x.

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Zucca, Mauro, et Oriano Bottauscio. « Hysteretic Modeling of Electrical Micro-Power Generators Based on Villari Effect ». IEEE Transactions on Magnetics 48, no 11 (novembre 2012) : 3092–95. http://dx.doi.org/10.1109/tmag.2012.2206373.

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15

Tzanis, Athanasios, Manos Zeibekis, Alexandra Pilidi, Nikolaos Koutsokostas, Constantina Kollia et Thanassis Speliotis. « Villari magnetomechanical coupling at hcp-Cobalt thin films on flexible substrates ». Materials Science and Engineering : B 264 (février 2021) : 114945. http://dx.doi.org/10.1016/j.mseb.2020.114945.

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16

Kachniarz, M., K. Kołakowska, J. Salach, R. Szewczyk et P. Nowak. « Magnetoelastic Villari Effect in Structural Steel Magnetized in the Rayleigh Region ». Acta Physica Polonica A 133, no 3 (mars 2018) : 660–62. http://dx.doi.org/10.12693/aphyspola.133.660.

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17

Windl, Roman, Florian Bruckner, Claas Abert, Christian Huber, Christoph Vogler, Thomas Huber, Harald Oezelt et Dieter Suess. « Passive wireless strain measurement based upon the Villari effect and giant magnetoresistance ». Applied Physics Letters 109, no 25 (19 décembre 2016) : 253502. http://dx.doi.org/10.1063/1.4972399.

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18

Bieńkowski, Adam, Roman Szewczyk et Roman Kolano. « Influence of thermal treatment on magnetoelastic Villari effect in Fe78Si13B9 amorphous alloy ». Materials Science and Engineering : A 375-377 (juillet 2004) : 1024–26. http://dx.doi.org/10.1016/j.msea.2003.10.045.

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19

Corró, M. L., A. el Hichou, E. Cesari et S. Kustov. « Study of magnetic transitions in Dy by means of reversible Villari effect ». Journal of Physics D : Applied Physics 49, no 1 (25 novembre 2015) : 015001. http://dx.doi.org/10.1088/0022-3727/49/1/015001.

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20

Leuning, Nora, Simon Steentjes et Kay Hameyer. « Effect of magnetic anisotropy on Villari Effect in non-oriented FeSi electrical steel ». International Journal of Applied Electromagnetics and Mechanics 55 (16 octobre 2017) : 23–31. http://dx.doi.org/10.3233/jae-172254.

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21

Bieńkowski, A. « The possibility of utilizing the magnetomechanical Villari effect in ferrite as stress transducer ». Journal of Magnetism and Magnetic Materials 83, no 1-3 (janvier 1990) : 411–12. http://dx.doi.org/10.1016/0304-8853(90)90567-a.

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22

Bieńkowski, Adam, Roman Szewczyk et Alicja Wiśniewska. « Magnetostrictive Properties and Magnetoelastic Villari Effect in the High-permeability Mn-Zn Ferrites ». Czechoslovak Journal of Physics 54, S4 (décembre 2004) : 169–72. http://dx.doi.org/10.1007/s10582-004-0056-9.

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23

Renda, Walter, et Salvatore Giacobbe. « First report of Alvania scuderii Villari, 2017 (Gastropoda : Mollusca) from Tyrrhenian Sea : Some biogeographic implications ». Aquatic Research 4, no 2 (2021) : 208–13. http://dx.doi.org/10.3153/ar21016.

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The cryptic gastropod Alva-nia scuderii Villari, 2017, recently described from the Strait of Messina as new species inside the A. scabra (Philippi, 1844) group, was known by restricted areas of eastern and southern Sicily. Some records from the type locality and south-eastern Tyrrhenian sea, which pro-vided new data on habitat and bathymetric range, also enlarged northward, in a further basin, the known ar-eal. Such areal, that over-laps a Mediterranean west-ern-eastern biogeographic boundary, may be consid-ered a further clue of an hy-drological front that is re-sponsible of a West-Mediterranean footprint more marked than in nearby North-westernmost areas.
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24

Dapino, Marcelo J., Ralph C. Smith, Frederick T. Calkins et Alison B. Flatau. « A Coupled Magnetomechanical Model for Magnetostrictive Transducers and its Application to Villari-Effect Sensors ». Journal of Intelligent Material Systems and Structures 13, no 11 (novembre 2002) : 737–47. http://dx.doi.org/10.1177/1045389x02013011005.

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Szewczyk, Roman, et Adam Bieńkowski. « Magnetoelastic Villari effect in high-permeability Mn–Zn ferrites and modeling of this effect ». Journal of Magnetism and Magnetic Materials 254-255 (janvier 2003) : 284–86. http://dx.doi.org/10.1016/s0304-8853(02)00784-9.

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Aoyama, Hideki, Takeshi Suzuki, Tomoya Ishii et Hiroo Ohzeki. « F-0602 Sensor to Detect Cutting Force and Tool Deformation Based on Villari Effect ». Proceedings of the JSME annual meeting III.01.1 (2001) : 305–6. http://dx.doi.org/10.1299/jsmemecjo.iii.01.1.0_305.

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27

Joh, Changbin, Jung Woo Lee et Imjong Kwahk. « Feasibility Study of Stress Measurement in Prestressing Tendons Using Villari Effect and Induced Magnetic Field ». International Journal of Distributed Sensor Networks 9, no 11 (janvier 2013) : 249829. http://dx.doi.org/10.1155/2013/249829.

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Jeun, Minhong, Lin Lin, Ho Wan Joo, Seongtae Bae, Jang Heo et Ky Am Lee. « “Villari reversal” in the exchange biased [Pd/Co]5/FeMn thin films with perpendicular anisotropy ». Applied Physics Letters 94, no 15 (13 avril 2009) : 152512. http://dx.doi.org/10.1063/1.3120556.

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Szewczyk, R. « Stress-Induced Anisotropy and Stress Dependence of Saturation Magnetostriction in the Jiles-Atherton-Sablik Model of the Magnetoelastic Villari Effect ». Archives of Metallurgy and Materials 61, no 2 (1 juin 2016) : 607–12. http://dx.doi.org/10.1515/amm-2016-0103.

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Abstract The paper presents the results of the magnetoelastic Villari effect modelling in high-permeability Mn0.51Zn0.44Fe2.05O4 ferrite. Modelling was performed on the basis of measurements of magnetoelastic characteristics of frame-shaped samples. For the modelling, the corrected Jiles-Atherton-Sablik model was used. On the base of modelling results, the stress dependence of parameter k and stress-induced anisotropy were estimated. As a result the changes of saturation magnetostriction of Mn0.51Zn0.44Fe2.05O4 ferrite subjected to stresses were calculated. Such changes were previously observed experimentally. However, the phenomenon of stress-induced sign change of saturation magnetostriction was never previously explained quantitatively
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Gazda, Piotr, Michał Nowicki et Roman Szewczyk. « Comparison of Stress-Impedance Effect in Amorphous Ribbons with Positive and Negative Magnetostriction ». Materials 12, no 2 (16 janvier 2019) : 275. http://dx.doi.org/10.3390/ma12020275.

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The SI (stress-impedance) effect in amorphous ribbons with varying magnetostriction was investigated. Iron- and cobalt-based ribbons with different magnetostriction coefficients were put under tensile stress in a dead weight tester and the impedance change was investigated in function of applied stresses. Significant differences of characteristics are presented. Stress-impedance analog of Villari reversal point was observed. The reversal point showed driving current frequency dependence, in which this point manifests for different stress values. Based on the obtained SI characteristics and magnetoelastic hysteresis, the most appropriate stress-sensing material was selected for development of precise small forces sensor.
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Rysak, Andrzej, et Magdalena Gregorczyk. « Non-linear dynamics of the Villari effect in the presence of a non-homogeneous magnetic field ». Proceedings of the Institution of Mechanical Engineers, Part I : Journal of Systems and Control Engineering 233, no 4 (28 novembre 2018) : 431–40. http://dx.doi.org/10.1177/0959651818813221.

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Investigations of systems with an active magnetostrictive element generally assume the presence of an external homogeneous bias magnetic field. This article, however, presents the results of a study investigating a bimorph magnetostrictive-aluminium beam vibrating in a non-homogeneous bias field. By comparing results obtained under different operating conditions of the system, the combined effect of the non-linear beam stress and the non-homogeneous external magnetic field on the dynamics of the Villari phenomenon is determined. The preliminary results prove that the application of non-linear magnetic fields to the magnetostrictive devices ensures the extension of energy harvesting bandwidth of these devices and can be used to improve their control possibilities. A study of time series and hysteresis loops provides more detailed information about the non-linear magnetization and dynamics of the system.
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Xian, Junlan, et Jingyi Zhang. « Deriving the Hawking Temperature of (Massive) Global Monopole Spacetime via a Topological Formula ». Entropy 24, no 5 (30 avril 2022) : 634. http://dx.doi.org/10.3390/e24050634.

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In this work, we study the Hawking temperature of the global monopole spacetime (non-spherical symmetrical black hole) based on the topological method proposed by Robson, Villari, and Biancalana (RVB). By connecting the Hawking temperature with the topological properties of black holes, the Hawking temperature of the global monopole spacetime can be obtained by the RVB method. We also discuss the Hawking temperature in massive gravity, and find that the effect of the mass term cannot be ignored in the calculation of the Hawking temperature; the corrected Hawking temperature in massive gravity can be derived by adding an integral constant, which can be determined by the standard definition.
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Vidler, Anthony. « Review : J. N. L. Durand (1760-1834) : Art and Science of Architecture by Sergio Villari, Eli Gottlieb ». Journal of the Society of Architectural Historians 51, no 4 (1 décembre 1992) : 436–37. http://dx.doi.org/10.2307/990739.

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Kachniarz, M., A. Bieńkowski, J. Salach et R. Szewczyk. « Magnetoelastic Villari Effect in Ferrite Materials for Force and Stress Sensors Working in Low Magnetizing Field Region ». Acta Physica Polonica A 133, no 4 (avril 2018) : 1056–59. http://dx.doi.org/10.12693/aphyspola.133.1056.

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Borowiec, Marek, et Arkadiusz Syta. « Modelling of Energy Harvesting System from Vertically Excited Magnetostrictive Beam ». Applied Mechanics and Materials 844 (juillet 2016) : 128–37. http://dx.doi.org/10.4028/www.scientific.net/amm.844.128.

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Recently, one can observe increasing number of small devices or sensors in many applicationsthat have to be powered by an energy which can be extracted from surroundings. Simple energyharvesting concept from mechanical vibrations of magnetostrictive materials is based on linear beamwith external excitation. In this case, the beam under load vibrates, and experiences stress or strain.This changes the beam shape which causes direction of sample magnetization (Villari effect) thatcan be captured by external coil and transferred to electrical power. In general, the higher amplitudeof beam vibrations, the higher energy can be extracted from the system. This can be achieve in thevicinity of a resonant frequency. In this paper, we propose energy harvesting model based on linearmagnetostrictive (MsM) beam with external coil. We analyse different shapes of the beam withrespect to different resonant frequencies.
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Xu, Jiang, Yong Sun et Jinhai Zhou. « Research on the Lift-off Effect of Receiving Longitudinal Mode Guided Waves in Pipes Based on the Villari Effect ». Sensors 16, no 9 (20 septembre 2016) : 1529. http://dx.doi.org/10.3390/s16091529.

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Shi, Rui, Chuanli Wang, Caofeng Yu, Meijun Xiong, Yu Wang et Zhuo Chen. « Output characteristics and experimental study of a highly linear and large-range force sensor based on the Villari effect ». AIP Advances 11, no 5 (1 mai 2021) : 055317. http://dx.doi.org/10.1063/5.0050384.

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Condorelli, Stefano. « Rosario Villari Un sogno di libertà. Napoli nel declino di un impero, 1585-1648 Milan, Mondadori, 2012, 715 p. » Annales. Histoire, Sciences Sociales 69, no 02 (juin 2014) : 536–38. http://dx.doi.org/10.1353/ahs.2014.0107.

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Condorelli, Stefano. « Rosario Villari Un sogno di libertà. Napoli nel declino di un impero, 1585-1648 Milan, Mondadori, 2012, 715 p. » Annales. Histoire, Sciences Sociales 69, no 2 (juin 2014) : 536–38. http://dx.doi.org/10.1017/s0395264900008738.

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Kundys, B., Yu Bukhantsev, H. Szymczak, M. R. J. Gibbs et R. Zuberek. « Temperature dependence of saturation magnetostriction measured for Fe81Si3.5B13.5C2 amorphous films by a bending method based on the Villari effect ». Journal of Physics D : Applied Physics 35, no 11 (23 mai 2002) : 1095–98. http://dx.doi.org/10.1088/0022-3727/35/11/301.

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Grenda, Przemysław, Monika Kutyła, Michał Nowicki et Tomasz Charubin. « Bendductor—Transformer Steel Magnetomechanical Force Sensor ». Sensors 21, no 24 (10 décembre 2021) : 8250. http://dx.doi.org/10.3390/s21248250.

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In this paper, the design and investigation of an innovative force sensor, based on the Villari effect, is presented. The sensor was built from electrical steel, in a pressductor pattern, but working in bending load mode. The results of the experimental research allowed for the evaluation of transducer’s performance, mitigation of measurement hysteresis, and optimization of its functional parameters. Several issues have been examined, among them the selection of supply and measured signals, the measured values’ impact on measurement hysteresis, harmonic analysis, and the selection of proper current waveforms and frequencies. The proposed sensor is robust, made from inexpensive materials, and has high sensitivity, as compared to other magnetoelastic sensors. It has much higher stress sensitivity than other magnetoelastic sensors due to deformation mode. Based on the tests, its measuring range can be defined as 0.5–5 N with a near-linear characteristic, SNR of 46 dB, and 0.11 N uncertainty.
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AMATI, BRUNO, MASSIMO APPOLLONI, ANDREA DI GIULIO, DANILO SCUDERI, CARLO SMRIGLIO et MARCO OLIVERIO. « Revision of the Recent Alvania scabra (Philippi, 1844) complex (Mollusca, Gastropoda, Rissoidae) from the Mediterranean Sea with the description of a new species ». Zootaxa 4767, no 3 (28 avril 2020) : 415–58. http://dx.doi.org/10.11646/zootaxa.4767.3.3.

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Herein we revise several Recent Mediterranean species of the rissoid genus Alvania Risso, 1826: Alvania scabra (Philippi, 1844), Alvania sculptilis (Monterosato, 1877), Alvania sororcula Granata-Grillo, 1877, Alvania lucinae Oberling, 1970, Alvania josefoi Oliver & Templado, 2009 and Alvania scuderii Villari, 2017. They represent a rather homogeneous group of morphologically similar species, referred to as the Alvania scabra complex, which includes also some other species from the northeastern Atlantic. We designate a neotype for Rissoa scabra Philippi, 1844 and a lectotype for Rissoa oranica Pallary, 1900 to stabilize the use of the names. Alvania oranica (Pallary, 1900) is confirmed as a synonym of Alvania scabra (Philippi, 1844), and Alvania asperella (Granata-Grillo, 1877) is proposed as a synonym of Alvania sororcula (Granata-Grillo, 1877) [new synonymy]. Finally, we describe one new Mediterranean species: Alvania pizzinii Amati, Smriglio & Oliverio n. sp. from Levanzo Is., Sicily.
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Doan Thanh Dat, Le Thi Hong Giang, Nguyen Dinh Dung, Hoang Anh Tuan et Nguyen Thi Le Hien. « Design and assembly of an apparatus system based on the Villari effect for detecting stress concentration zone on ferromagnetic materials ». Petrovietnam Journal 10 (30 octobre 2020) : 60–66. http://dx.doi.org/10.47800/pvj.2020.10-06.

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This paper presents the study results on the fabrication of a structural integrity assessment apparatus by determining stress concentration zones in pressure pipeline and equipment. The apparatus uses a triaxial magnetic field sensor to measure magnetic field components in three axes Ox, Oy, and Oz, in the working range of the magnetic field from -300 µT to 300 µT. The investigation of the selfmagnetic leakage field by this apparatus in the API 5L steel specimens under tensile stress shows a high variation of the magnetic field at a steel elongation lower than 1 mm (corresponding to the elastic deformation state of the material). In the case of an artificial defect, the apparatus can detect a change in the magnetic field caused by stress concentration.
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Ren, Limin, Kun Yu et Yisong Tan. « Applications and Advances of Magnetoelastic Sensors in Biomedical Engineering : A Review ». Materials 12, no 7 (7 avril 2019) : 1135. http://dx.doi.org/10.3390/ma12071135.

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We present a comprehensive investigation into magnetoelastic sensors (MES) technology applied to biomedical engineering. This includes the working principles, detection methods, and application fields of MES technology. MES are made of amorphous metallic glass ribbons and are wireless and passive, meaning that it is convenient to monitor or measure the parameters related to biomedical engineering. MES are based on the inverse magnetoelastic (Villari) effect. When MES are subjected to mechanical stress, their magnetic susceptibility will change accordingly. And the susceptibility of MES is directly related to their magnetic permeability. The varying permeability can positively reflect the applied stress. The various detection methods that have been developed for different field applications include measurement of force, stress, and strain, monitoring of various chemical indexes, and consideration of different biomedical parameters such as the degradation rate and force conditions of artificial bone, as well as various physiological indexes including ammonia level, glucose concentration, bacteria growth, and blood coagulation.
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Kurita, Hiroki, Kenichi Katabira, Yu Yoshida et Fumio Narita. « Footstep Energy Harvesting with the Magnetostrictive Fiber Integrated Shoes ». Materials 12, no 13 (26 juin 2019) : 2055. http://dx.doi.org/10.3390/ma12132055.

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Wearable energy harvesting devices attract attention as the devices provide electrical power without inhibiting user mobility and independence. While the piezoelectric materials integrated shoes have been considered as wearable energy harvesting devices for a long time, they can lose their energy harvesting performance after being used several times due to their brittleness. In this study, we focused on Fe–Co magnetostrictive materials and fabricated Fe–Co magnetostrictive fiber integrated shoes. We revealed that Fe–Co magnetostrictive fiber integrated shoes are capable of generating 1.2 µJ from 1000 steps of usual walking by the Villari (inverse magnetostrictive) effect. It seems that the output energy is dependent on user habit on ambulation, not on their weight. From both a mechanical and functional point of view, Fe–Co magnetostrictive fiber integrated shoes demonstrated stable energy harvesting performance after being used many times. It is likely that Fe–Co magnetostrictive fiber integrated shoes are available as sustainable and wearable energy harvesting devices.
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Wendler, Frank, Rohan Munjal, Muhammad Waqas, Robert Laue, Sebastian Härtel, Birgit Awiszus et Olfa Kanoun. « Eddy Current Sensor System for Tilting Independent In-Process Measurement of Magnetic Anisotropy ». Sensors 21, no 8 (9 avril 2021) : 2652. http://dx.doi.org/10.3390/s21082652.

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Modern production equipment is based on the results of quality control as well as process parameters. The magnetic anisotropy of materials is closely connected to internal mechanical stress by the Villari effect, and also to hardening effects due to plastic deformations, and could therefore provide an interesting basis for process control. Nevertheless, the analysis of anisotropic properties is extremely sensitive to sensor and workpiece misalignments, such as tilting. In this work, a novel eddy current sensor system is introduced, performing a non-contact measurement of the magnetic anisotropy of a workpiece and realizing a separation and correction of tilting effects. The measurement principle is demonstrated with the example of two samples with different magnetic anisotropy values induced by cold forming. Both samples are analyzed under different tilt angles between the sensor axis and the surface of the workpiece. In this work, digital signal processing is demonstrated on the acquired raw data in order to differentiate the effects of tilt and of anisotropy, with the use of preliminary results as an example of two prepared samples.
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Maldonado, Tomás, et Nicolás López. « Las dos almas de la cultura de Weimar ». Nuevo Itinerario 16, no 2 (5 novembre 2020) : 271. http://dx.doi.org/10.30972/nvt.1624542.

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<p>Traducción de Nicolás López.</p><p>“Le due anime della cultura di Weimar” es es título original del texto de Tomás Maldonado (1922-2018), cuya traducción al castellano ofrecemos en este número de <em>Nuevo itinerario. Revista de filosofía</em>. Fue publicado por primera vez en 1978, en la compilación<em> Weimar. </em><em>Lotte sociali e sistema democratico nella Germania degli anni Venti</em>, que estuvo al cuidado de Lucio Villari (Bologna: Il Mulino, pp. 153-161). El traductor quiere agradecer a los herederos de Tomas Maldonado y a la editorial Feltrinelli por haber cedido gentilmente los derechos del ensayo para la publicación de esta traducción. Para quien guarde interés por la cultura weimariana, encontrará en este texto una lúcida aproximación a las tendencias dominantes de una época que parece ya lejana, pero que en muchos aspectos sigue siendo el espejo en el que se refleja nuestra problemática modernidad.</p>
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Capua, Alberto De. « The Research Laboratory of the Mediterranean University ». Urban Studies and Public Administration 2, no 4 (28 novembre 2019) : p233. http://dx.doi.org/10.22158/uspa.v2n4p233.

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The laboratory, called LAB RENEW MEL created to test new technologies for producing energy from renewable sources thanks to the decisions of the management committees of three projects funded under the National Operational Program for Research and Competitiveness 2007-2013:RENEW Project (2014-2016) Coordinator prof. Claudio De Capua (Note 5)MEL Project (2014-2016 Coordinator prof. Pasquale Fabio Filianoti (Note 6)GELMINCAL Project (2011-2014) Coordinator prof. Francesco Della Corte (Note 7)All three projects together have a budget of nearly thirty million Euros. These are substantial resources that can allow the Mediterranean to take on a role of excellence in research on renewables. The establishment of a research center aims to achieve this goal, involves three departments of the University of Reggio Calabria, two of Engineering area, the Department of Civil Engineering, Energy, Environment and Materials (DICEAM) and the Department of Information Engineering, Infrastructure and Sustainable Energy (DIIES) and one of Architecture area, the Department of Architecture and Territory (dArTe).The author of this article is also the designer together with professor Alessandro Villari and professor Angelo Di Chio, who have followed, from the initial stages, all aspects related to the relationship between the objectives of the research and those related to the implementation of the Laboratory.
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Liu, Jie, Pinghui Mo, Mengchao Shi, Dan Gao et Jiwu Lu. « Multi-scale analysis of strain-dependent magnetocrystalline anisotropy and strain-induced Villari and Nagaoka-Honda effects in a two-dimensional ferromagnetic chromium tri-iodide monolayer ». Journal of Applied Physics 124, no 4 (28 juillet 2018) : 044303. http://dx.doi.org/10.1063/1.5036924.

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Zhou, Peng. « Coupling effects between elastic and electromagnetic fields from the perspective of conservation of energy ». Applied Mathematics and Mechanics 42, no 11 (22 octobre 2021) : 1649–62. http://dx.doi.org/10.1007/s10483-021-2792-9.

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AbstractCoupling effects among different physical fields reflect the conversion of energies from one field into another substantially. For simple physical processes, their governing or constitutive equations all satisfy the law of conservation of energy (LCE). Then, an analysis is extended to the coupling effects. First, for the linear direct and converse piezoelectric and piezomagnetic effects, their constitutive equations guarantee that the total energy is conserved during the process of energy conversion between the elastic and electromagnetic fields. However, the energies are converted via the work terms, (βijkEi),kvj and (γijkHi),kvj, rather than via the energy terms, βijkEiejk and γijkHiejk. Second, for the generalized Villari effects, the electromagnetic energy can be treated as an extra contribution to the generalized elastic energy. Third, for electrostriction and magnetostriction, both effects are induced by the Maxwell stress. Moreover, their energies are purely electromagnetic and thus both have no converse effects. During these processes, the energies can be converted in three different ways, i.e., via the non-potential forces, via the cross-dependence of the energy terms, and directly via the electromagnetic interactions of ions and electrons. In the end, the general coupling processes which involve elastic, electromagnetic fields and diffusion are also analyzed. The advantages of using this energy formulation are that it facilitates discussion of the conversion of energies and provides better physical insights into the mechanisms of these coupling effects.
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