J. LEGRAND

Details der Publikationsliste

Zeitraum

1945 - 2009

Anzahl

33

Co-Autoren

Kinetics modeling of alginate alkaline extraction from Laminaria digitata (2009)

Vauchel, P., LE ROUX, Karine, KAAS, Raymond, Arhaliass, A., BARON, Regis, Legrand, J.

Alginates being depolymerized during their alkaline extraction, reducing extraction time could help producing higher rheological quality alginates. The purpose of the present work is to study fresh...

A New Photobioreactor for Continuous Microalgal Production in Hatcheries Based on External-Loop Airlift and Swirling Flow (2009)

LOUBIERE, K, OLIVO, Erell, BOUGARAN, Gael, PRUVOST, J, ROBERT, Rene, LEGRAND, J

This study deals with the scale of a new photobioreactor for continuous microalgal production in hatcheries. The combination of the state-of-art with the constraints inherent to hatcheries has turned...

Decrease in dynamic viscosity and average molecular weight of alginate from Laminaria digitata during alkaline extraction (2008)

VAUCHEL, P, ARHALIASS, A, LEGRAND, J, KAAS, Raymond, BARON, Regis

Alginates are natural polysaccharides that are extracted from brown seaweeds and widely used for their rheological properties. The central step in the extraction protocol used in the alginate...

Subdoppler Study of the v3 = 2 State of SF6 by IR-IR Double Resonance with a Sideband Spectrometer (2007)

M. Khelkhal, E. Rusinek, J. Legrand, F. Herlemont, C. Pierre

The v 3 = 2 state of SF 6 has been investigated using two independantly tunable sidebands of a CO 2 laser. An electrooptic modulator, based on microstrip concept, is excited by a wave in the range 0...

TEMPO: a new ecological module for studying deep-sea community dynamics at hydrothermal vents (2007)

SARRAZIN, Jozee, BLANDIN, Jerome, DELAUNEY, Laurent, DENTRECOLAS, Stephane, DORVAL, Philippe, DUPONT, J, ...

The major goal of this project, elaborated in the frame of the STREP Exocet/D European project, was to design a first autonomous long-term imaging module equipped with a deep-sea video camera,...

EXtreme ecosystem studies in the deep OCEan : Technological Developments (2007)

SARRADIN, Pierre-Marie, SARRAZIN, Jozee, ALLAIS, Anne-Gaelle, ALMEIDA, D, BRANDOU, Vincent, BOETIUS, A, ...

EXOCET/D was a three-year project that started in 2004 and that was funded by the European Commission (STREP, FP6-GOCE-CT-2003-505342). The general objective of this project was to develop, implement...

Langmuir Probe Diagnostics and Spectroscopic Measurements in the Post-Discharge of a Dinitrogen/Methane Microwave Plasma (1995)

Diamy, A., Legrand, J., Hrachová, V.

Measurements of electron temperature (Te) and ion density (n+) are reported for mixtures of dinitrogen with methane in the afterglow of a high frequency discharge (2450 MHz). Methane is added...

Melting of 1-Alcohol Mololayers at the Air-Water Interface. I. X-Ray Reflectivity Investigations (1995)

Rieu, J., Legrand, J., Renault, A., Berge, B., Ocko, B., Wu, X., ...

The melting of 1-alcohol monolayers adsorbed at the air-water interface has been studied using X-ray reflectivity. This technique allows for an accurate determination of the thickness and the density...

Langmuir Probe Diagnostics and Spectroscopic Measurements in the Post-Discharge of a Dinitrogen/Methane Microwave Plasma (1995)

Diamy, A., Legrand, J., Hrachová, V.

Measurements of electron temperature (Te) and ion density (n+) are reported for mixtures of dinitrogen with methane in the afterglow of a high frequency discharge (2450 MHz). Methane is added...

Melting of 1-Alcohol Mololayers at the Air-Water Interface. I. X-Ray Reflectivity Investigations (1995)

Rieu, J., Legrand, J., Renault, A., Berge, B., Ocko, B., Wu, X., ...

The melting of 1-alcohol monolayers adsorbed at the air-water interface has been studied using X-ray reflectivity. This technique allows for an accurate determination of the thickness and the density...

Utilisation de la post-décharge d'un plasma micro-ondes d'air ou d'azote pour valoriser le méthane (1994)

Oumghar, A., Legrand, J., Diamy, A., Turillon, N., Ben-Aïm, R.

La valorisation du méthane est réalisée dans la post-décharge d'un plasma microondes (2 450 MHz) d'air ou d'azote. Lorsque la décharge est produite dans l'azote, les principaux produits...

Utilisation de la post-décharge d'un plasma micro-ondes d'air ou d'azote pour valoriser le méthane (1994)

Oumghar, A., Legrand, J., Diamy, A., Turillon, N., Ben-Aïm, R.

La valorisation du méthane est réalisée dans la post-décharge d'un plasma microondes (2 450 MHz) d'air ou d'azote. Lorsque la décharge est produite dans l'azote, les principaux produits...

Surface diffraction studies of 2D crystals of short fatty alcohols at the air-water interface (1993)

Renault, A., Legrand, J., Goldmann, M., Berge, B.

Using X ray surface diffraction we have investigated crystalline monolayers of short alcohols (1-decanol to 1-tetradecanol) at the air-water interface in the vicinity of the first order transition...

Surface diffraction studies of 2D crystals of short fatty alcohols at the air-water interface (1993)

Renault, A., Legrand, J., Goldmann, M., Berge, B.

Using X ray surface diffraction we have investigated crystalline monolayers of short alcohols (1-decanol to 1-tetradecanol) at the air-water interface in the vicinity of the first order transition...

Neutron spin echo study of the dynamics of undercooled selenium (1992)

Simon, Ch., Faivre, G., Zorn, R., Batallan, F., Legrand, J.

We present neutron spin echo measurements on the structural relaxation of undercooled liquid selenium above glass transition. We find a two-stage relaxation process essentially similar to that...

Small angle neutron scattering (SANS) study of γ' precipitates in single crystals of AM1 superalloy (1992)

Bellet, D., Bastie, P., Royer, A., Lajzerowicz, J., Legrand, J., Bonnet, R.

The morphology of γ' precipitates of AM1 single crystal superalloys has been studied by small neutron scattering (SANS), and electron microscopy. Due to the single crystal nature of the samples,...

Vibrational dynamics and structural relaxation in aqueous electrolyte solutions in the liquid, undercooled liquid and glassy states (1992)

Dupuy, J., Jal, J., PrÉvel, B., Aouizerat-Elarby, A., Chieux, P., Dianoux, A. J., ...

In very concentrated aqueous electrolyte solutions, the competition between dipolar and ionic forces and most of the system properties, are finely monitored by the concentration. For LiCl, RH2O (R...

Neutron spin echo study of the dynamics of undercooled selenium (1992)

Simon, Ch., Faivre, G., Zorn, R., Batallan, F., Legrand, J.

We present neutron spin echo measurements on the structural relaxation of undercooled liquid selenium above glass transition. We find a two-stage relaxation process essentially similar to that...

Small angle neutron scattering (SANS) study of γ' precipitates in single crystals of AM1 superalloy (1992)

Bellet, D., Bastie, P., Royer, A., Lajzerowicz, J., Legrand, J., Bonnet, R.

The morphology of γ' precipitates of AM1 single crystal superalloys has been studied by small neutron scattering (SANS), and electron microscopy. Due to the single crystal nature of the samples,...

Vibrational dynamics and structural relaxation in aqueous electrolyte solutions in the liquid, undercooled liquid and glassy states (1992)

Dupuy, J., Jal, J., PrÉvel, B., Aouizerat-Elarby, A., Chieux, P., Dianoux, A. J., ...

In very concentrated aqueous electrolyte solutions, the competition between dipolar and ionic forces and most of the system properties, are finely monitored by the concentration. For LiCl, RH2O (R...

STARK TUNED SATURATED ABSORPTION SPECTROSCOPY IN MICROWAVE DOMAIN (1977)

Legrand, J., Segard, B., Macke, B.

Author Institution: Laboratoire de Spectroscopie Hertzienne, C.N.R.S., Universit\'{e}a de Lille

Double nutation et échos moléculaires dans le domaine millimétrique (1975)

Glorieux, P., Legrand, J., Macke, B.

On présente les premiers résultats d'expériences de double nutation et d'échos de photons dans le domaine millimétrique (68 et 102 GHz). Ces méthodes apparaissent bien adaptées à l'étude des...

LEVEL CROSSING IN MICROWAVE SPECTROSCOPY OF $CH_{3}F$ (1974)

Glorieux, P., Legrand, J.

Author Institution: Laboratoire de Spectroscopie, Hertzienne, E.R.A. 150 Universit\'{e} de Lille

Saturation dans les expériences de double résonance hertzien-hertzien (1971)

Glorieux, P., Legrand, J., Macke, B., Messelyn, J.

Les auteurs ont mis en évidence des phénomènes de saturation dus à la puissance de sonde dans les expériences de double résonance hertzien-hertzien. L'accord entre les résultats expérimentaux...

Marquage en fréquences d'un spectre hertzien (1968)

Legrand, J., Macke, B., Messelyn, J., Wertheimer, R.

Pour étudier un spectre hertzien Sp(ν) dépendant d'un paramètre p, il est commode de faire figurer sur un même enregistrement les courbes obtenues pour diverses valeurs de p. Le marquage en...

Spectromètre hertzien pour études de double résonance (1968)

Legrand, J., Macke, B., Messelyn, J., Wertheimer, R.

L'excitation simultanée de deux transitions de rotation d'un gaz ayant un niveau d'énergie commun fait apparaître des phénomènes liés à cette double irradiation. Nous avons réalisé un...