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Affichage de 3551 à 3560 sur 16553

Article dans une revue

Development of broadband high-frequency piezoelectric micromachined ultrasonic transducer array

Xu-Bo Wang, Le-Ming He, You-Cao Ma, Wen-Juan Liu, Wei-Jiang Xu, Jun-Yan Ren, Antoine Riaud, Jia Zhou

Piezoelectric micromachined ultrasonic transducers (PMUT) are promising elements to fabricate a two-dimensional (2D) array with a pitch small enough (approximately half wavelength) to form and receive arbitrary acoustic beams for medical imaging. However, PMUT arrays have so far failed to combine…

Sensors, 2021, 21 (5), pp.1823. ⟨10.3390/s21051823⟩. ⟨hal-03260141⟩

Article dans une revue

High-Q silicon nitride drum resonators strongly coupled to gates

Xin Zhou, Srisaran Venkatachalam, Ronghua Zhou, Hao Xu, Alok Pokharel, Andrew Fefferman, Mohammed Zaknoune, Eddy Collin

Silicon nitride (SiN) mechanical resonators with high quality mechanical properties are attractive for fundamental research and applications. However, it is challenging to maintain these mechanical properties while achieving strong coupling to an electrical circuit for efficient on-chip integration…

Nano Letters, 2021, 21 (13), pp.5738-5744. ⟨10.1021/acs.nanolett.1c01477⟩. ⟨hal-03263144⟩

Article dans une revue

Optomechanic Coupling in Ag Polymer Nanocomposite Films

Adnane Noual, Eunsoo Kang, Tanmoy Maji, Manos Gkikas, Bahram Djafari-Rouhani, George Fytas

Particle vibrational spectroscopy has emerged as a new tool for the measurement of elasticity, glass transition, and interactions at a nanoscale. For colloid-based materials, however, the weakly localized particle resonances in a fluid or solid medium renders their detection difficult. The strong…

Journal of Physical Chemistry C, 2021, 125 (27), pp.14854-14864. ⟨10.1021/acs.jpcc.1c04549⟩. ⟨hal-03538884⟩

Article dans une revue

A comprehensive theoretical evaluation of the end-to-end performance of SoftCast-based linear video delivery schemes

Anthony Trioux, M Gharbi, François-Xavier Coudoux, Patrick Corlay

SoftCast-based linear video delivery (LVD) schemes have been proposed as an alternative to traditional video transmission schemes in wireless error-prone environments. The end-to-end performance of SoftCast-based schemes have been evaluated in Xiong et al. (2016), where a theoretical model based on…

Signal Processing: Image Communication, 2021, 98, pp.116369. ⟨10.1016/j.image.2021.116369⟩. ⟨hal-03335975⟩

Communication dans un congrès

CRC-Based Multi-Error Correction of H.265 Encoded Videos in Wireless Communications

Vivien Boussard, Stephane Coulombe, François-Xavier Coudoux, Patrick Corlay, Anthony Trioux

This paper analyzes the benefits of extending CRC-based error correction (CRC-EC) to handle more errors in the context of error-prone wireless networks. In the literature, CRC-EC has been used to correct up to 3 binary errors per packet. We first present a theoretical analysis of the CRC-EC…

2021 International Conference on Visual Communications and Image Processing (VCIP), Dec 2021, Munich, Germany. pp.1-5, ⟨10.1109/VCIP53242.2021.9675400⟩. ⟨hal-03541959⟩

Communication dans un congrès

UWB radar detection theory

Laila Sakkila, C. Tatkeu, Atika Rivenq, J. Zaidouni, Michael Bocquet

In this paper, a study of UWB receivers in terms of detection theory is presented. The UWB radar which is presented in many works previously [1]-[3] has many applications. For road UWB radar application, the receiver based on correlation is the optimum receiver [4]. In fact, it maximizes the…

10th International Symposium on Signal, Image, Video and Communications, ISIVC 2020, postponed event, Apr 2021, Saint-Etienne, France. pp.9487541, ⟨10.1109/ISIVC49222.2021.9487541⟩. ⟨hal-03362259⟩

Communication dans un congrès

Concept Extraction Based on Semantic Models Using Big Amount of Patents and Scientific Publications Data

Vasilii Kaliteevskii, Arthur Deder, Nemanja Peric, Leonid Chechurin

Formalisation of heuristic methods for supporting the conceptual design stage of product and technology development has been extensively evolved in industry during the last half of the century and gradually more formally appears in academic context nowadays. Due to the considerable interest from…

Creative Solutions for a Sustainable Development: 21st International TRIZ Future Conference, TFC 202, Sep 2021, Bolzano, Italy. pp.141-149, ⟨10.1007/978-3-030-86614-3_11⟩. ⟨hal-03541023⟩

Chapitre d'ouvrage

7 - Eigenfunction rules

L. Dobrzynski, Housni Al Wahsh, Abdellatif Akjouj, El Houssaine El Boudouti

It is well known that eigenfunctions have to be continuous at each space point of the structure in which they are localized. This is not the only rule they have to fulfill. Rules involving eigenfunction derivatives are also used in the bulk and at the boundary of all physical systems. The aim of…

Photonics, Part one: photonic paths, Elsevier, pp.133-145, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00016-2⟩. ⟨hal-03357569⟩

Chapitre d'ouvrage

8 - General wave perspectives

L. Dobrzynski, Housni Al Wahsh, Abdellatif Akjouj, El Houssaine El Boudouti

Many other waves may be investigated with a second order differential equation, function of time and space position, similar to that of Maxwell used in this Photonics book. In many cases, these equations differ one from another only by some coefficients. Without trying to be exhaustive, a few other…

Photonics, Part one: photonic paths, Elsevier, pp.147-151, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00017-4⟩. ⟨hal-03357577⟩

Communication dans un congrès

Acoustic Tamm states in slender tubes

S. Khattou, M. Amrani, A. Mouadili, E.H. El Boudouti, Bahram Djafari-Rouhani

We present an analytical and numerical study of the possibility of existence of surface localized modes, the so-called Tamm states, in a one-dimensional (1D) comb-like phononic crystal (PnC). The structure is made out of periodic array of stubs of lengths d2grafted along a waveguide and separated…

4th International Conference on Materials and Environmental Science, ICMES 2020, Nov 2020, Oujda, Morocco. pp.7394-7398, ⟨10.1016/j.matpr.2021.01.504⟩. ⟨hal-03362266⟩