THOMAS OLDHAM BARLOW, A.R.A., HENRY O'NEIL, A.R.A., THE AUTHOR OF "OLD ENGLISH PLATE.", FREDERICK J. KING., DEPOSITOR., DONALD CURRIE AND CO. 3 and 4. Fenchurch-street, Feb. 8., JOHN HEBB., FRANCIS K. MUNTON., A SUSSEX MAGISTRATE (No. 1)., D. CAPERN., H. F. E., A SOLICITOR., THOMAS H. ENSOR., A JUNIOR., SOLICITOR., IGNORAMUS., F., H. P. JESTON., SIGMA.,
... Central Africa., Ceylon., Royal Geographical Society., ON AN OGAM INSCRIPTION.-The forthcoming part, Equatorial Africa., The Public ...
1879 - Gale Group | TDA
The Ogam (Modern Irish: Ogham) script is a peculiar writing system devised to write the Primitive Irish language, i. ... fully died out. Of the c. 400 known Ogam inscriptions, around 330 are found in Ireland, the ... rather monotonous content – namely personal names – of the Ogam texts, as well as the language as far ...
Tópico(s): Historical Studies of British Isles
2020 - Institución Fernando el Católico | Palaeohispanica Revista sobre lenguas y culturas de la Hispania Antigua
... paper discusses the origin and antiquity of the ogam script, the transliteration of the letter Fern , and ... Ballinderry dice, ninth‐ and twelfth‐ century manuscript keys, ogam letters found in Anglo‐Saxon texts and in ...
Tópico(s): Linguistics and language evolution
1993 - Wiley | Transactions of the Philological Society
Edward J. Vajda, Richard A. V. Cox,
Tópico(s): Classical Antiquity Studies
2000 - Linguistic Society of America | Language
... the medieval hazel coppice, the inscription of Irish Ogam along the edges of stone or wood, and the Ogam letters coll 'hazel' and uillenn 'honeysuckle' aids in ...
Tópico(s): Linguistics and language evolution
2004 - Scriptoriun Press | Arthuriana
Erick Ogam, Zine El Abiddine Fellah, Géry Ogam,
Closed-cell cellular polymer foams are the most efficient insulating materials commercially available. Their lightweight and mechanical resistance also make them ideal materials for packaging protection in the transport industry. A new method using guided acoustic waves in air transmitted through samples of cellular foam panels, has been developed to recover their P-wave moduli and Poisson's ratios. These parameters were recovered from measured transmission coefficients of the foams through fitting ...
Tópico(s): Asphalt Pavement Performance Evaluation
2015 - Elsevier BV | Composite Structures
Tópico(s): Historical Linguistics and Language Studies
1951 - PERSEE Program | Scriptorium
... Williams SOME PROBLEMS IN DECIPHERING THE EARLY IRISH OGAM ALPHABET, Transactions of the Philological Society 91, no. ...
Tópico(s): Historical Studies of British Isles
1945 - University of Chicago Press | Speculum
Robert P. Gilbert, Ying Liu, Jean‐Philippe Groby, Erick Ogam, Armand Wirgin, Yongzhi Xu,
Based on a model and an algorithm proposed previously by Buchanan, Gilbert, Wirgin and Xu [J.L. Buchanan, R.P. Gilbert, A. Wirgin, Y. Xu, Transient reflection and transmission of ultrasonic waves in cancellous bones, Appl. Math. Comp. 142 (2003), 561–573, R.P. Gilbert, Y. Xu, Shangyou Zhang, Computing porosity of cancellous bone using ultrasonic waves] we numerically computed the dependence of the porosity of cancellous bone encased in cortical bone and muscle on the measured ultrasonic wave. The ...
Tópico(s): Drilling and Well Engineering
2009 - Pergamon Press | Mathematical and Computer Modelling
Jean‐Philippe Groby, Armand Wirgin, Erick Ogam,
The acoustic response (in particular, the transmission) of a periodic distribution of macroscopic inclusions within a rigid frame porous plate (similar to a sonic crystal) is studied by the multipole method. Numerical results show that the addition of grating stacks leads to bandgaps within the audible frequency range for a small number of stacks, this being associated with a large decrease of the transmission coefficient of the initial plate. The first bandgap is of practical interest for noise shielding, ...
Tópico(s): Noise Effects and Management
2008 - Taylor & Francis | Waves in Random and Complex Media
Zine El Abiddine Fellah, Zine El Abiddine Fellah, M. Fellah, Erick Ogam, Farid G. Mitri, Claude Dépollier, Walter Lauriks,
This paper concerns the ultrasonic characterization of human cancellous bone samples by solving the inverse problem using experimentally measured signals. The inverse problem is solved numerically by the least squares method. Five parameters are inverted: porosity, tortuosity, viscous characteristic length, Young modulus, and Poisson ratio of the skeletal frame. The minimization of the discrepancy between experiment and theory is made in the time domain. The ultrasonic propagation in cancellous ...
Tópico(s): Acoustic Wave Phenomena Research
2008 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control
Zine El Abiddine Fellah, Naima Sebaa, M. Fellah, Farid G. Mitri, Erick Ogam, Walter Lauriks, Claude Dépollier,
Ultrasonic wave propagation in human cancellous bone is considered using Biot's theory modified by the Johnson-Koplik-Dashen model for viscous exchange between fluid and structure. The transmission coefficient is derived for a slab of porous material. Experimental results for fast and slow waves transmitted through human cancellous bone samples are given and compared with theoretical predictions.
Tópico(s): Underwater Acoustics Research
2008 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control
Erick Ogam, Zine El Abiddine Fellah, Naima Sebaa, Jean‐Philippe Groby,
Tópico(s): Structural Health Monitoring Techniques
2010 - Elsevier BV | Journal of Sound and Vibration
Jean‐Philippe Groby, Erick Ogam, Laurent De Ryck, Naima Sebaa, Walter Lauriks,
A frequency domain method dedicated to the analytic recovery of the four relevant parameters of macroscopically homogeneous rigid frame porous materials, e.g., plastic foams, at the high frequency range of the Johnson-Champoux-Allard model is developed and presented. The reconstructions appeal to experimental data concerning time domain measurements of the ultrasonic fields reflected and transmitted by a plate of the material at normal incidence. The effective density and bulk modulus of the material ...
Tópico(s): Underwater Acoustics Research
2010 - Acoustical Society of America | The Journal of the Acoustical Society of America
Zine El Abiddine Fellah, F.G. Mitri, M. Fellah, Erick Ogam, C. Depollier,
This paper concerns the ultrasonic characterization of air-saturated porous materials by solving the inverse problem using experimental data. It is generally easy to solve the inverse problem via transmitted waves, obtaining optimized values of tortuosity, viscous and thermal characteristic lengths, but this is not the case for the porosity because of its weak sensitivity in the transmitted mode. The reflection mode is an alternative to the transmission mode, in that it gives a good estimation of ...
Tópico(s): Underwater Acoustics Research
2007 - Elsevier BV | Journal of Sound and Vibration
M. Sadouki, M. Fellah, Zine El Abiddine Fellah, Erick Ogam, Naima Sebaa, F.G. Mitri, Claude Dépollier,
An acoustic method based on sound transmission is proposed for deducing the static thermal permeability and the inertial factor of porous materials having a rigid frame at low frequencies. The static thermal permeability of porous material is a geometrical parameter equal to the inverse trapping constant of the solid frame [Lafarge et al., J. Acoust. Soc. Am. 102, 1995 (1997)] and is an important characteristic of the porous material. The inertial factor [Norris., J. Wave Mat. Interact. 1, 365 (1986)] ...
Tópico(s): Underwater Acoustics Research
2011 - Acoustical Society of America | The Journal of the Acoustical Society of America
F. Horåk, Tamás Fazekas, Angela Zacharasiewicz, Ernst Eber, Herbert Kiss, Alfred Lichtenschopf, Manfred Neuberger, Rudolf Schmitzberger, Burkhard Simma, Andree Wilhelm-Mitteräcker, Josef Riedler,
Tópico(s): Restraint-Related Deaths
2011 - Springer Science+Business Media | Wiener klinische Wochenschrift
Naima Sebaa, Zine El Abiddine Fellah, M. Fellah, Erick Ogam, Armand Wirgin, F.G. Mitri, Claude Dépollier, Walter Lauriks,
This paper concerns the ultrasonic characterization of human cancellous bone samples by solving the inverse problem using experimental transmitted signals. The ultrasonic propagation in cancellous bone is modeled using the Biot theory modified by the Johnson et al. model for viscous exchange between fluid and structure. The sensitivity of the Young modulus and the Poisson ratio of the skeletal frame is studied showing their effect on the fast and slow wave forms. The inverse problem is solved numerically ...
Tópico(s): Ultrasonics and Acoustic Wave Propagation
2006 - Acoustical Society of America | The Journal of the Acoustical Society of America
Gaëlle Lefeuve-Mesgouez, Arnaud Mesgouez, Erick Ogam, Thierry Scotti, Armand Wirgin,
In recent years, due to the rapid development of computation hard- and software, time domain full-wave inversion, which makes use of all the information in the seismograms without appealing to linearization, has become a plausible candidate for the retrieval of the physical parameters of the earth's substratum. Retrieving a large number of parameters (the usual case in a layered substratum comprising various materials, some of which are porous) at one time is a formidable task, so full-wave inversion ...
Tópico(s): Hydraulic Fracturing and Reservoir Analysis
2012 - Elsevier BV | Journal of Applied Geophysics
Paolo Domenici, R. S. Batty, Tiu Similä, Erick Ogam,
ABSTRACT Killer whales (Orcinus orca) feeding on herring (Clupea harengus) in a fjord in northern Norway were observed using underwater video. The whales cooperatively herded herring into tight schools close to the surface. During herding and feeding, killer whales swam around and under a school of herring, periodically lunging at it and stunning the herring by slapping them with the underside of their flukes while completely submerged. The kinematics of tail-slapping were analysed in detail. Tail- ...
Tópico(s): Marine and fisheries research
2000 - The Company of Biologists | Journal of Experimental Biology
M. Sadouki, Zine El Abiddine Fellah, Amine Berbiche, M. Fellah, F.G. Mitri, Erick Ogam, Claude Dépollier,
Conventional acoustical methods for measuring the permeability or flow resistivity of a porous material require a priori estimation of the porosity. In this work, an acoustical method is presented in which a simplified expression (independent of both the frequency and porosity) for the transmitted waves at the Darcy's regime (low frequency range) is derived, and used for the inverse determination of both the viscous static permeability (or flow resistivity) and the thickness of air-saturated porous ...
Tópico(s): Noise Effects and Management
2014 - Acoustical Society of America | The Journal of the Acoustical Society of America
M. Fellah, Zine El Abiddine Fellah, F.G. Mitri, Erick Ogam, Claude Dépollier,
A temporal model based on the Biot theory is developed to describe the transient ultrasonic propagation in porous media with elastic structure, in which the viscous exchange between fluid and structure are described by fractional derivatives. The fast and slow waves obey a fractional wave equation in the time domain. The solution of Biot's equations in time depends on the Green functions of each of the waves (fast and slow), and their fractional derivatives. The reflection and transmission operators ...
Tópico(s): Microwave Imaging and Scattering Analysis
2013 - Acoustical Society of America | The Journal of the Acoustical Society of America
Zine El Abiddine Fellah, M. Sadouki, M. Fellah, F.G. Mitri, Erick Ogam, Claude Dépollier,
We present an improved method for the characterization of air-saturated porous materials by simultaneous measurement of porosity, tortuosity, viscous, and thermal characteristic lengths via ultrasonic transmission only. The proposed method is based on a temporal model of the direct and inverse scattering problem for the transient ultrasonic waves in a homogeneous isotropic slab of rigid porous material. The advantage of the proposed method is that the four parameters are determined simultaneously ...
Tópico(s): Underwater Acoustics Research
2013 - American Institute of Physics | Journal of Applied Physics
Ywonne Hallén, Marion E. O’Neill,
... objects, including a whale-bone vertebral disc with ogam-like decorations which had been used as a ...
Tópico(s): Maritime and Coastal Archaeology
1995 - Society of Antiquaries of Scotland | Proceedings of the Society of Antiquaries of Scotland
Rubaiyet Iftekharul Haque, Erick Ogam, Christophe Loussert, P. Benaben, X. Boddaert,
A capacitive acoustic resonator developed by combining three-dimensional (3D) printing and two-dimensional (2D) printed electronics technique is described. During this work, a patterned bottom structure with rigid backplate and cavity is fabricated directly by a 3D printing method, and then a direct write inkjet printing technique has been employed to print a silver conductive layer. A novel approach has been used to fabricate a diaphragm for the acoustic sensor as well, where the conductive layer ...
Tópico(s): Nanofabrication and Lithography Techniques
2015 - Multidisciplinary Digital Publishing Institute | Sensors
Mohamed Ben Mansour, Erick Ogam, Zine El Abiddine Fellah, A. Chérif, Ahmed Jelidi, Sadok Ben Jabrallah,
The objective of this work was to analyze the influence of compaction pressure on the intrinsic acoustic parameters (porosity, tortuosity, air-flow resistivity, viscous, and thermal characteristic lengths) of compressed earth blocks through their identification by solving an inverse acoustic wave transmission problem. A low frequency acoustic pipe (60-6000 Hz of length 22 m, internal diameter 3.4 cm) was used for the experimental characterization of the samples. The parameters were identified by the ...
Tópico(s): Seismic Waves and Analysis
2016 - Acoustical Society of America | The Journal of the Acoustical Society of America
Abstract A systematic search for Celtic derivatives of IE * peug′‐ /* peuk′‐ ‘to pierce’ illustrates the extent to which Indo‐European etymological dictionaries have tended to overlook the existence of cognates in the Celtic languages.
Tópico(s): Historical Studies of British Isles
2017 - Wiley | Transactions of the Philological Society
Mohamed Ben Mansour, Erick Ogam, Ahmed Jelidi, A. Chérif, Sadok Ben Jabrallah,
In this work we focus on the study of the acoustic and mechanical behavior of compressed earth blocks (CEBs). The aim was to study the influence of compaction pressure on the compressive strength and intrinsic acoustic parameters influencing sound absorption of these materials (porosity, tortuosity, airflow resistivity, viscous characteristic length). Specimens made by varying the applied compaction pressure and therefore having various bulk densities were studied. Low bulk density CEBs where stabilized ...
Tópico(s): Masonry and Concrete Structural Analysis
2017 - Elsevier BV | Applied Acoustics
Rémi Roncen, Zine El Abiddine Fellah, F. Simon, Estelle Piot, M. Fellah, Erick Ogam, Claude Dépollier,
The purpose of this paper is to present a method for the ultrasonic characterization of air-saturated porous media, by solving the inverse problem using only the reflected waves from the first interface to infer the porosity, the tortuosity, and the viscous and thermal characteristic lengths. The solution of the inverse problem relies on the use of different reflected pressure signals obtained under multiple obliquely incident waves, in the time domain. In this paper, the authors propose to solve ...
Tópico(s): Underwater Acoustics Research
2018 - Acoustical Society of America | The Journal of the Acoustical Society of America