Publications (8102)
ARTICLE
Artificial signals addition for reducing PAPR of OFDM systems
Guel Desire and Palicot Jacques
One of the major drawbacks of OFDM modulation is the large envelope fluctuations which either result in an inefficient use of high power amplifiers (HPA) or decreased transmission system performance. Peak-to-Average Power Ratio (PAPR) is a very well known measure of the envelope fluctuations and has become the cost function used to evaluate an(...)
Orthogonal Frequency Division Multiplexing (OFDM), Peak-to-Average Power Ratio (PAPR), Artificial Signals
ARTICLE
« Chants, musique et danse dans l’oeuvre d’Elechi Amadi »
KIEMA, Alfred
cet article
Chants, musique, danse
ARTICLE
Exergy efficiency applied for the performance optimization of a direct injection compression ignition (CI), engine using biofuels.
Yao Azoumah, Joel Blin, Tizane Daho.
The need to decrease the consumption of materials and energy and to promote the use of renewable
resources, such as biofuels, stress the importance of evaluating the performance of engines based on the
second law of thermodynamics. This paper suggests the use of exergy analysis (as an environmental
assessment tool to account wastes and dete(...)
Mots clés non renseignés
ARTICLE
Culture d'enseignement, culture d'apprentissage au Burkina Faso: le cas de l'enseignement à l'école primaire
Alain Joseph Sissao
Actes du Septième Colloque inter-universitaire sur la coexistence des Langues en Afrique de l'Ouest
apprentissage
ARTICLE
Les pathologies bucco-dentaires dans les consultations de routine au Centre Médical du Camp Général Aboubacar Sangoulé Lamizana à Ouagadougou.
GUIGUIMDE Wendpouiré Patrice Laurent, BAKIONO Fidèle, KABRE Armand Claude, OUEDRAOGO Alfred Marie Parfait
Contexte : Les maladies bucco-dentaires constituent un problème majeur de santé publique au Burkina Faso. Notre étude a pour objectif d’analyser les pathologies bucco dentaires rencontrées et leur association avec les facteurs sociodémographiques et sanitaires des patients.
Méthodes : Il s’agit d’une étude rétrospective à partir d’un échantil(...)
consultation de routine, pathologie buccodentaire, service de santé des Armées, Burkina Faso
ARTICLE
Convective drying characteristics of Amelie mango (Mangifera Indica L. cv.‘Amelie’) with correction for shrinkage
D. BATHIEBO
Drying characteristics of Amelie mango were investigated through slices shrinkage behaviour at 50, 60 and 70° C and drying kinetics at temperatures ranging from 50 to 70° C and for slices of 2.5, 5 and 10 mm thick. Results showed that mango slices shrinkage was less influenced by temperature and best fitted by the linear model of volume additi(...)
Mots clés non renseignés
ARTICLE
Mutualism between euryhaline tilapia Sarotherodon melanotheron heudelotii and Chlorella sp. Implications for nano-algal production in warmwater phytoplankton-based recirculating systems
Gilles S.; Lacroix G., Corbin D., Bâ N’G., Luna C I., Nandjui J., Ouattara A., Ouédraogo O., and Lazzaro X.
The West-African euryhaline tilapia, Sarotherodon melanotheron heudelotii shift from visually feeding on
zooplankton when juveniles to mostly filter feeding on phytoplankton when adults. When reared using
an appropriate ration in intensive aquaculture systems, S. m. heudelotii also consume algal-based detritus,
and contribute to sediment mi(...)
Mots clés non renseignés
ARTICLE
Electrogenerated base-promoted synthesis of dithiocarbamate acid esters and 3-(N-Substituted-amino)-2-cyanodithiocrotonates from primary or secondary amines...
I. TAPSOBA
Electrogenerated cyanomethyl anion promotes the reaction between primary or secondary amines, carbon disulfide, and alkyl or benzyl halide. Secondary amines are converted to alkyl or benzyl dithiocarbamates, whereas primary amines give N-substituted alkyl or benzyl 3-amino-2-cyanodithiocrotonates. The mechanisms are discussed.
Mots clés non renseignés
ARTICLE
DETERMINATION DES PARAMETRES ELECTRIQUES D’UNE PHOTOPILE SOUS ECLAIREMENT MONOCHROMATIQUE EN MODULATION DE FREQUENCE, A PARTIR DES DIAGRAMMES DE BODE ET DE NYQUIST
M. NDIAYE , Z. NOUHOU BAKO, I. ZERBO, A. DIENG, F. I. BARRO, G. SISSOKO
Nous présentons dans cet article une méthode de détermination des paramètres électriques d’une photopile monofaciale au silicium en régime dynamique fréquentiel sous éclairement monochromatique. A partir de la représentation de Nyquist de l’impédance dynamique de la photopile, nous déterminons la résistance série Rs et la résistance shunt Rsh(...)
Photopile, impédance, diagramme de Bode, représentation de Nyquist, résistance série, résistance shunt, inductance, capacité, phase
ARTICLE
How much do village librairies Increase Reading? Results of a survey of 10th Graders in Burkina-Faso
Alain Joseph Sissao
KEVANE & SISSAO« How much do village librairies Increase Reading? Results of a survey of 10th Graders in Burkina-Faso, In LIBRI, Volume 58, Number 3, September 2008, pp.2002-2010
librairie
ARTICLE
Approximation of the average power variation for Geometric adding signal approach of PAPR reduction in context of OFDM signals
Désiré Guel, Jacques Palicot
One of the major drawbacks of adding signal techniques of reducing peak to average power ratio (PAPR) is the variation of the average power of the transmit signal that undoubtedly degrades the performance of transmission. In this paper, assuming that the baseband OFDM signal is characterized as a complex Gaussian process, we derive an approxim(...)
Mots clés non renseignés
ARTICLE
Volatile constituents, antioxidant and antibacterial properties of Daniella Klainei Pierre ex A. Chev. essential oil
Jean Koudou, Louis-Clément Obame , Prosper Edou , Ismael Bassolé , François Eba , Gilles Figueredo , Alfred S. Traore and Jean-Claude Chalchat
The water-distilled oil obtained from rhizomes of Daniella Klainei Pierre ex A.Chev (Caesalpiniaceae)
from Gabon was examined by gas chromatography (GC) and gas chromatography/mass spectrometry
(GC/MS). The major constituent is myrcene (55.42%) along with -pinene (5.39%), -humulène (8.09%)
and Germacrene-D (6.06%). The essential oil posse(...)
Daniella Klainei, caesalpiniaceae, essential oil, antioxidant
ARTICLE
« La traduction du langage religieux catholique comme dialogue interculturel et interconfessionnel chez les moose du Burkina-Faso
Alain Joseph Sissao
We will try to examine through the trajectory of the Catholic
biblical texts the translation process of French to the Moor of some texts and
religious concepts. Thus, through the hermeneutics of the biblical text, the
liturgy of French to the Moor will be analyzed in order to see the
intercultural and interdenominational elements between l(...)
biblical texts, interculturals, French, Moor.
ARTICLE
Frequency based asymptotic distribution of the PAPR for geometric adding signal approach in OFDM signals context
Guel, D. and Palicot, J. and Bellanger, J.-J.
The distribution of the peak-to-average power ratio (PAPR) for Geometric method [1] of PAPR reduction in orthogonal frequency-division multiplexing (OFDM) signals is evaluated in order to analyse the influence of the carrier frequency of adding signal on the PAPR reduction. Assuming that the baseband OFDM signal is characterized as a band-limi(...)
Orthogonal Frequency Division Multiplexing (OFDM), Peak-to-Average Power Ratio (PAPR), Asymptotic Distribution
ARTICLE
« Aperçu sur la littérature orale Moose
Alain Joseph Sissao
« Aperçu sur la littérature orale Moose, in Marie Rose Abomo-Maurin, Littérature orale, genres, fonction et réécriture, Harmattan, juillet 2008, pp.17-39
oralité, mooose