Instabilities of waves in nonlinear disordered media (2006)
We develop a self-consistent theory of temporal fluctuations of a speckle pattern resulting from the multiple scattering of a coherent wave in a weakly nonlinear disordered medium. The speckle...
Nonuniversal correlations in multiple scattering (2006)
We show that intensity of a wave created by a source embedded inside a three-dimensional disordered medium exhibits a non-universal space-time correlation which depends explicitly on the...
Diffuse waves in nonlinear disordered media (2006)
We review our recent theoretical results on multiple scattering of waves in nonlinear disordered media. In particular, we discuss angular correlations of scattered waves, coherent backscattering...
The employment benefits of organic farming (2006)
Organic farming in the UK provides a range of economic and social benefi ts. In particular, it provides 32% more jobs per farm than equivalent non-organic farms. These new findings are based on the...
The employment benefits of organic farming (2006)
Organic farming in the UK provides a range of economic and social benefi ts. In particular, it provides 32% more jobs per farm than equivalent non-organic farms. These new findings are based on the...
Diffuse waves in nonlinear disordered media (2003)
We review our recent theoretical results on multiple scattering of waves in nonlinear disordered media. In particular, we discuss angular correlations of scattered waves, coherent backscattering...
Instabilities of waves in nonlinear disordered media (2000)
We develop a self-consistent theory of temporal fluctuations of a speckle pattern resulting from the multiple scattering of a coherent wave in a weakly nonlinear disordered medium. The speckle...
Nonuniversal correlations in multiple scattering (2000)
We show that intensity of a wave created by a source embedded inside a three-dimensional disordered medium exhibits a non-universal space-time correlation which depends explicitly on the...
Dynamical correlations for multiple light scattering in laminar flow (1991)
Bicout, D., Akkermans, E., Maynard, R.
A theoritical study of time dependent correlation functions of the multiply scattered light in a disordered medium is presented. We consider the situation where the fluid containing the elastic...
Dynamical correlations for multiple light scattering in laminar flow (1991)
Bicout, D., Akkermans, E., Maynard, R.
A theoritical study of time dependent correlation functions of the multiply scattered light in a disordered medium is presented. We consider the situation where the fluid containing the elastic...
Dynamical correlations for multiple light scattering in laminar flow (1991)
Bicout, D., Akkermans, E., Maynard, R.
A theoritical study of time dependent correlation functions of the multiply scattered light in a disordered medium is presented. We consider the situation where the fluid containing the elastic...
LOW ENERGY EXCITATIONS IN SILICA AEROGELS (1989)
Maynard, R., Calemczuk, R., De Goer, A., Salce, B., Bon, J., Bonjour, E., ...
Specific heat, thermal conductivity, internal friction and relative change in sound velocity measurements have been performed from 0.1 K to 10 K on several low density silica aerogels (p < 0.8...
LOW ENERGY EXCITATIONS IN SILICA AEROGELS (1989)
Maynard, R., Calemczuk, R., De Goer, A., Salce, B., Bon, J., Bonjour, E., ...
Specific heat, thermal conductivity, internal friction and relative change in sound velocity measurements have been performed from 0.1 K to 10 K on several low density silica aerogels (p < 0.8...
LOW ENERGY EXCITATIONS IN SILICA AEROGELS (1989)
Maynard, R., Calemczuk, R., De Goer, A., Salce, B., Bon, J., Bonjour, E., ...
Specific heat, thermal conductivity, internal friction and relative change in sound velocity measurements have been performed from 0.1 K to 10 K on several low density silica aerogels (p < 0.8...
Optical coherent backscattering by random media : an experimental study (1988)
Wolf, P.E., Maret, G., Akkermans, E., Maynard, R.
A detailed experimental study of coherent backscattering of light from aqueous suspensions of polystyrene microspheres is presented. Emphasis is on the effects of particle size, of absorption due to...
Theoretical study of the coherent backscattering of light by disordered media (1988)
Akkermans, E., Wolf, P.E., Maynard, R., Maret, G.
A theoretical study of the coherent backscattering effect of light from disordered semi-infinite media is presented for various situations including time-dependent effects as well as absorption and...
Optical coherent backscattering by random media : an experimental study (1988)
Wolf, P.E., Maret, G., Akkermans, E., Maynard, R.
A detailed experimental study of coherent backscattering of light from aqueous suspensions of polystyrene microspheres is presented. Emphasis is on the effects of particle size, of absorption due to...
Theoretical study of the coherent backscattering of light by disordered media (1988)
Akkermans, E., Wolf, P.E., Maynard, R., Maret, G.
A theoretical study of the coherent backscattering effect of light from disordered semi-infinite media is presented for various situations including time-dependent effects as well as absorption and...
Optical coherent backscattering by random media : an experimental study (1988)
Wolf, P.E., Maret, G., Akkermans, E., Maynard, R.
A detailed experimental study of coherent backscattering of light from aqueous suspensions of polystyrene microspheres is presented. Emphasis is on the effects of particle size, of absorption due to...
Theoretical study of the coherent backscattering of light by disordered media (1988)
Akkermans, E., Wolf, P.E., Maynard, R., Maret, G.
A theoretical study of the coherent backscattering effect of light from disordered semi-infinite media is presented for various situations including time-dependent effects as well as absorption and...
THERMODYNAMIC PROPERTIES OF GLASSES (1985)
The main low temperature properties of glasses are reviewed and analyzed in terms of the "two level systems" model. A new mechanism of interaction between fluorescent molecules and fluctuating strain...
Weak localization of waves (1985)
The weak localization of waves is formulated in terms of coherent multiple scattering theory. This leads, in the backscattering direction, to an enhancement of the differential cross-section. It...
THERMODYNAMIC PROPERTIES OF GLASSES (1985)
The main low temperature properties of glasses are reviewed and analyzed in terms of the "two level systems" model. A new mechanism of interaction between fluorescent molecules and fluctuating strain...
Weak localization of waves (1985)
The weak localization of waves is formulated in terms of coherent multiple scattering theory. This leads, in the backscattering direction, to an enhancement of the differential cross-section. It...
THERMODYNAMIC PROPERTIES OF GLASSES (1985)
The main low temperature properties of glasses are reviewed and analyzed in terms of the "two level systems" model. A new mechanism of interaction between fluorescent molecules and fluctuating strain...
Weak localization of waves (1985)
The weak localization of waves is formulated in terms of coherent multiple scattering theory. This leads, in the backscattering direction, to an enhancement of the differential cross-section. It...
Brownian motion in one-dimensional disordered systems (1984)
The Brownian motion of a particle in a one-dimensional random potential of Wiener-Levy type is studied Thermal fluctuations exert random forces or transfer random energies which set the particle in...
Chains of random impedances (1984)
The transmission of an electrical wave of frequency ω through a random ladder network is calculated at low frequency in terms of the scaling variables ω and N (the size of the chain). Two...
Brownian motion in one-dimensional disordered systems (1984)
The Brownian motion of a particle in a one-dimensional random potential of Wiener-Levy type is studied Thermal fluctuations exert random forces or transfer random energies which set the particle in...
Chains of random impedances (1984)
The transmission of an electrical wave of frequency ω through a random ladder network is calculated at low frequency in terms of the scaling variables ω and N (the size of the chain). Two...
Brownian motion in one-dimensional disordered systems (1984)
The Brownian motion of a particle in a one-dimensional random potential of Wiener-Levy type is studied Thermal fluctuations exert random forces or transfer random energies which set the particle in...
Chains of random impedances (1984)
The transmission of an electrical wave of frequency ω through a random ladder network is calculated at low frequency in terms of the scaling variables ω and N (the size of the chain). Two...
Random antiphase state and frustration in two dimensions (1982)
The phase diagram of the frustration model of random interactions ± J between nearest neighbour Ising spins on a square lattice is studied in the (T, x) plane : T temperature, x concentration of...
Random antiphase state and frustration in two dimensions (1982)
The phase diagram of the frustration model of random interactions ± J between nearest neighbour Ising spins on a square lattice is studied in the (T, x) plane : T temperature, x concentration of...
Random antiphase state and frustration in two dimensions (1982)
The phase diagram of the frustration model of random interactions ± J between nearest neighbour Ising spins on a square lattice is studied in the (T, x) plane : T temperature, x concentration of...
Erratum : Spectral diffusion decay of spontaneous echoes in disordered systems (1980)
Maynard, R., Rammal, R., Suchail, R.
No abstract available
Spectral diffusion decay of spontaneous echoes in disordered systems (1980)
Maynard, R., Rammal, R., Suchail, R.
In a system of two level systems or 1/ 2 spins, the relaxation of spontaneous echoes is obtained in the framework of the Klauder-Anderson scheme. The assumption of a hyperbolic distribution...
Erratum : Spectral diffusion decay of spontaneous echoes in disordered systems (1980)
Maynard, R., Rammal, R., Suchail, R.
No abstract available
Spectral diffusion decay of spontaneous echoes in disordered systems (1980)
Maynard, R., Rammal, R., Suchail, R.
In a system of two level systems or 1/ 2 spins, the relaxation of spontaneous echoes is obtained in the framework of the Klauder-Anderson scheme. The assumption of a hyperbolic distribution...
Erratum : Spectral diffusion decay of spontaneous echoes in disordered systems (1980)
Maynard, R., Rammal, R., Suchail, R.
No abstract available
Spectral diffusion decay of spontaneous echoes in disordered systems (1980)
Maynard, R., Rammal, R., Suchail, R.
In a system of two level systems or 1/ 2 spins, the relaxation of spontaneous echoes is obtained in the framework of the Klauder-Anderson scheme. The assumption of a hyperbolic distribution...
EXISTENCE OF A GAP IN THE LOW ENERGY DENSITY OF STATES OF VITREOUS SILICA (1978)
Lasjaunias, J., Maynard, R., Vandorpe, M.
A complete calculation using two random variables in the two level tunneling model leads to a gap in the density of states of the defects and permits the simultaneous interpretation of a variation in...
ON THE TIME-DEPENDENT SPECIFIC HEAT OF GLASSES AT LOW TEMPERATURES (1978)
The problem of the time dependent specific heat has been treated in the framework of the model of tunneling defects coupled to the phonons. The effective density of two level defects has been...
Spectral diffusion in glasses (1978)
A new mechanism of spectral diffusion in glasses is proposed based on the flip-flop process between unlike defects. Two phonons participate in the process : one real phonon for conserving the energy...
EXISTENCE OF A GAP IN THE LOW ENERGY DENSITY OF STATES OF VITREOUS SILICA (1978)
Lasjaunias, J., Maynard, R., Vandorpe, M.
A complete calculation using two random variables in the two level tunneling model leads to a gap in the density of states of the defects and permits the simultaneous interpretation of a variation in...
ON THE TIME-DEPENDENT SPECIFIC HEAT OF GLASSES AT LOW TEMPERATURES (1978)
The problem of the time dependent specific heat has been treated in the framework of the model of tunneling defects coupled to the phonons. The effective density of two level defects has been...
Spectral diffusion in glasses (1978)
A new mechanism of spectral diffusion in glasses is proposed based on the flip-flop process between unlike defects. Two phonons participate in the process : one real phonon for conserving the energy...
EXISTENCE OF A GAP IN THE LOW ENERGY DENSITY OF STATES OF VITREOUS SILICA (1978)
Lasjaunias, J., Maynard, R., Vandorpe, M.
A complete calculation using two random variables in the two level tunneling model leads to a gap in the density of states of the defects and permits the simultaneous interpretation of a variation in...
ON THE TIME-DEPENDENT SPECIFIC HEAT OF GLASSES AT LOW TEMPERATURES (1978)
The problem of the time dependent specific heat has been treated in the framework of the model of tunneling defects coupled to the phonons. The effective density of two level defects has been...
Spectral diffusion in glasses (1978)
A new mechanism of spectral diffusion in glasses is proposed based on the flip-flop process between unlike defects. Two phonons participate in the process : one real phonon for conserving the energy...
Conduction thermique des verres aux basses températures (1977)
Leadbetter, A.J., Jeapes, A.P., Waterfield, C.G., Maynard, R.
Les conductions thermiques des verres GeO2, B2O 3, BeF2, As2S3, As2Se 3, GeS2, CaMgSi2O6, verre et polycristal (diopside), ont été mesurées entre 1,5 K et 30 K. La variation de la conductivité de...
New dielectric properties of glasses at very low temperatures (1977)
Frossati, G., Maynard, R., Rammal, R., Thoulouze, D.
The very low frequency dielectric constant of borosilicate glasses has been measured down to 5 mK. A new law in Log T/ω and a non-linear field effect have been found and are explained by a very...
Conduction thermique des verres aux basses températures (1977)
Leadbetter, A.J., Jeapes, A.P., Waterfield, C.G., Maynard, R.
Les conductions thermiques des verres GeO2, B2O 3, BeF2, As2S3, As2Se 3, GeS2, CaMgSi2O6, verre et polycristal (diopside), ont été mesurées entre 1,5 K et 30 K. La variation de la conductivité de...
New dielectric properties of glasses at very low temperatures (1977)
Frossati, G., Maynard, R., Rammal, R., Thoulouze, D.
The very low frequency dielectric constant of borosilicate glasses has been measured down to 5 mK. A new law in Log T/ω and a non-linear field effect have been found and are explained by a very...
Conduction thermique des verres aux basses températures (1977)
Leadbetter, A.J., Jeapes, A.P., Waterfield, C.G., Maynard, R.
Les conductions thermiques des verres GeO2, B2O 3, BeF2, As2S3, As2Se 3, GeS2, CaMgSi2O6, verre et polycristal (diopside), ont été mesurées entre 1,5 K et 30 K. La variation de la conductivité de...
New dielectric properties of glasses at very low temperatures (1977)
Frossati, G., Maynard, R., Rammal, R., Thoulouze, D.
The very low frequency dielectric constant of borosilicate glasses has been measured down to 5 mK. A new law in Log T/ω and a non-linear field effect have been found and are explained by a very...
Analyse de la conductibilité thermique du graphite. - II. théorie (1967)
Les auteurs ont essayé de décrire quantitativement la variation de conductibilité thermique K(T) du graphite quasi monocristallin, vierge et irradié aux neutrons. Ils ont utilisé pour les...
Analyse de la conductibilité thermique du graphite. - II. théorie (1967)
Les auteurs ont essayé de décrire quantitativement la variation de conductibilité thermique K(T) du graphite quasi monocristallin, vierge et irradié aux neutrons. Ils ont utilisé pour les...
Analyse de la conductibilité thermique du graphite. - II. théorie (1967)
Les auteurs ont essayé de décrire quantitativement la variation de conductibilité thermique K(T) du graphite quasi monocristallin, vierge et irradié aux neutrons. Ils ont utilisé pour les...
In vitro toxicology of respirable Montserrat volcanic ash
Wilson, M., Stone, V., Cullen, R., Searl, A., Maynard, R., Donaldson, K.
OBJECTIVES—In July 1995 the Soufriere Hills volcano on the island of Montserrat began to erupt. Preliminary reports showed that the ash contained a substantial respirable component and a large...