Publications (5779)
ARTICLE
OFDM PAPR Reduction Based on Nonlinear Functions without BER Degradation and Out-of-Band Emission
Guel Désire and Palicot Jacques
Peak-to-average power ratio (PAPR) reduction techniques based on nonlinear functions (clipping, companding techniques, etc) are the most straightforward PAPR reduction methods. These techniques reduce the PAPR at the cost of generating distortions. In this paper, we prove basing on Bussgang theorem that in context of PAPR reduction techniques(...)
Orthogonal Frequency Division Multiplexing (OFDM), Peak-to-Average Power Ratio (PAPR), Nonlinear functions
ARTICLE
Sensitive and Selective Electrochemical Analysis of Methyl‐parathion (MPT) and 4‐Nitrophenol (PNP) by a New Type p‐NiTSPc/p‐PPD Coated Carbon Fiber Micro...
Issa Tapsoba, S. Bourhis, T. Feng, M. Pontié
A novel modified carbon fiber microelectrode (CFME) was obtained by combination of tetrasulfonated nickel phtalocyanine (p‐NiTSPc) electroformed film associated to para‐phenylenediamine (p‐PPD) electropolymerized outer‐coating. The modified CFMEs where denoted C/p‐NiTSPc and C/p‐NiTSPc/p‐PPD, respectively. These electrodes are dedicated to the(...)
Mots clés non renseignés
ARTICLE
Medicinal plants used in traditional medicine in Centre East Region of Burkina Faso.
Ky K.J.M., Zerbo P., Gnoula C., Simporé J., Nikiéma J-B. et Millogo-Rasolodimby J.
Cette publication de 12 pages, 04 tableaux, 04 figures et 35 références, a porté sur l'inventaire et l'utilisation des plantes en médecine traditionnelle pour le traitement des maladies dans la Région du Centre-Est. La méthode était basée sur des enquêtes ethnobotaniques avec entretien semi-directif auprès de 50 personnes très expérimentées en(...)
Médecine traditionnelle, Indication thérapeutique, Plantes médicinales, Burkina Faso
ARTICLE
La coqueluche du nouveau-né en Afrique
K. NAGALO
Résumé La coqueluche est une maladie contagieuse due à Bordetella pertussis, qui peut être prévenue par la vaccination. Elle est grave chez les enfants de moins de 3 mois. Ceux-ci sont dans la plupart des cas contaminés par leurs parents alors qu'ils sont peu ou pas protégés contre la maladie. Les présentations atypiques sont fréquentes et la(...)
Mots clés non renseignés
ARTICLE
In Vitro Antiplasmodial and Antibacterial Activities of Canthium multiflorum Schum & Thonn (Rubiacea) Extracts
Akomo EF, Zongo C, Karou SD, Obame LC, Savadogo A, Atteke C, Traore AS
Because of the resistance of pathogens to actually available drugs, there is a continuous need for new agents to cure several diseases such as malaria and microbial infections. In the establishment of new drugs, plant are often a source of new leads, indeed aqueous, acetone and methanol extracts of Canthium multiflorum were tested for antiplas(...)
Mots clés non renseignés
ARTICLE
Clipping Formulated As an Adding Signal Technique for OFDM Peak Power Reduction
Guel Desire and Palicot Jacques
Due to the simplest way for PAPR reduction, clipping technique have been proposed and seem to be promising for use in commercial systems. In this paper, the conventional clipping technique is formulated as an adding signal technique for PAPR reduction. We show that, when clipping occurs very rarely, the adding signal for PAPR reduction commonl(...)
Peak to Average Power Ratio (PAPR), Nonlinear distortion, Wireless LAN
ARTICLE
« Littérature et idéologie : déconstruction de l’histoire et préjugés raciaux dans Two Thousand Seasons de Ayi Kwei Armah »
KIEMA, Alfred
Cet article
Littérature, idéologie, déconstruction, préjugés
ARTICLE
« Littérature et idéologie : déconstruction de l’histoire et préjugés raciaux dans Two Thousand Seasons de Ayi Kwei Armah »
KIEMA, Alfred
cet article
Ideologie, déconstruction, préjugés raciaux
ARTICLE
Les phénomènes de nitration des eaux souterraines dans la région de Tilabéry (Niger)
Marou Gourouza , Garba Zibo , Karifa Bayo
Résumé : Des échantillons d’eaux de consommation provenant de trois cent points d’eau
souterraine repartis sur toute la région de Tillabéry (Niger) ont été analysés. Les résultats
révèlent qu’environ 2/3 de ces points d’eaux connaissent un début de pollution au nitrate ;
10% sont impropres à la consommation humaine avec des teneurs supérieu(...)
Mots clés : eau, pollution, nitrate, potassium
ARTICLE
Local existence and regularity of solutions for some partial functional integrodifferential equations with infinite delay in Banach Spaces
Khalil Ezzinbi, Hamidou Toure, Issa Zabsonre
In this work, we study the existence and regularity of solutions for some partial functional integrodifferential equations with infinite delay in Banach spaces. We suppose that the undelayed part admits a resolvent operator in the sense of Grimmer [R. Grimmer, Resolvent operators for integral equations in a Banach space, Transactions of the Am(...)
Mots clés non renseignés
ARTICLE
Living at the edge: biogeographic patterns of habitat segregation conform to speciation by niche expansion in Anopheles gambiae
Carlo Costantini , Diego Ayala , Wamdaogo M Guelbeogo , Marco Pombi , Corentin Y Some , Imael HN Bassole , Kenji Ose , Jean- Marie Fotsing , N'Falé Sagnon , Didier Fontenille , Nora J Besansky and Frédéric Simard
Background: Ongoing lineage splitting within the African malaria mosquito Anopheles gambiae is
compatible with ecological speciation, the evolution of reproductive isolation by divergent natural selection acting on two populations exploiting alternative resources. Divergence between two molecular forms (M and S) identified by fixed(...)
Mots clés non renseignés
ARTICLE
Toward a Better Representation of Women in Physics in Burkina Faso
P. Kafando, M.N.Sido-Pabyam, and I. Zerbo
Although 52% of Burkina Faso's population is women, boys receive preference in schooling. In 2006, only about 10% of the secondary school pupils were girls. At the University of Ouagadougou in 2000-2005 one quarter of the students were women, but just 5% of students in the sciences were women. This rate is dramatically lower in physics, both f(...)
women in science, Burkina Faso, education of girls in Burkina Faso
ARTICLE
Modelling and experimental validation of thin layer indirect solar drying of mango slices
D. BATHIEBO
The thin layer solar drying of mango slices of 8 mm thick was simulated and experimented using a solar dryer designed and constructed in laboratory. Under meteorological conditions of harvest period of mangoes, the results showed that 3 “typical days” of drying were necessary to reach the range of preservation water contents. During these 3 da(...)
Mots clés non renseignés
ARTICLE
Discovering Africa's Newest Palm.
A. OUEDRAOGO
In 1996, a paper was published discussing the identity of a palm in the genus Borassus, occurring only in West Africa. It was identified as B. flabellifer, the Asian palmyrah palm, previously unknown in Africa. This paper recounts the story of an expedition to find and document these palms, resulting in the description of Borassus akeassii, Af(...)
Mots clés non renseignés
ARTICLE
Existence and regularity of solutions for some partial functional integrodifferential equations in Banach spaces
Khalil Ezzinbi, Hamidou Toure, Issa Zabsonre
In this work, we study the existence and regularity of solutions for some partial functional integrodifferential equations in Banach spaces. We suppose that the undelayed part admits a resolvent operator in the sense given by Grimmer in [R. Grimmer, Resolvent operators for integral equations in a Banach space, Transaction of American Mathemati(...)
Mots clés non renseignés