Search Results - "Ghribi, D."

Investigation on Elliptical Contact Starvation for High Slide-to-Roll Ratio: Application to Gears by Navet, P., Cavoret, J., Ville, F., Changenet, C., Ghribi, D.

“…Starvation can occur in lubricated systems due to a lack of lubricant. Though the starvation conditions of rolling element bearings are fairly well known,…”
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Thermal Modeling of the FZG Test Rig: Application to Starved Lubrication Conditions by Navet, P., Changenet, C., Ville, F., Ghribi, D., Cavoret, J.

“…During their lifetime, gears may undergo starved lubrication operating conditions. Starvation has an impact on friction between gears and leads to modified…”
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Use of sea water as salts source in starch- and soya bean-based media, for the production of Bacillus thuringiensis bioinsecticides by Ghribi, D., Zouari, N., Trigui, W., Jaoua, S.

“…In order to reduce the cost of Bacillus thuringiensis bioinsecticide-process production , a new medium only composed of starch, soya bean and diluted sea…”
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Improvement of bioinsecticides production through mutagenesis of Bacillus thuringiensis by u.v. and nitrous acid affecting metabolic pathways and/or delta-endotoxin synthesis by Ghribi, D, Zouari, N, Jaoua, S

“…Aims:  The present work aimed to obtain bioinsecticide over‐producing mutants through classical mutagenesis of vegetative cells of Bacillus thuringiensis (Bt)…”
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Improvement of bioinsecticides production through adaptation of Bacillus thuringiensis cells to heat treatment and NaCl addition by Ghribi, D, Zouari, N, Jaoua, S

“…Aims:  The present work aimed to increase yields of delta‐endotoxin production through adaptation of Bacillus thuringiensis cells to heat shock and sodium…”
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Bio-emulsifying and biodegradation activities of syringafactin producing Pseudomonas spp. strains isolated from oil contaminated soils by Zouari, Oumaima, Lecouturier, Didier, Rochex, Alice, Chataigne, Gabrielle, Dhulster, Pascal, Jacques, Philippe, Ghribi, Dhouha

“…Pseudomonas strains isolated from oil contaminated soils were screened for biosurfactant production. Three out of eleven Pseudomonas isolates were selected for…”
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Improvement of bread dough quality by Bacillus subtilis SPB1 biosurfactant addition: optimized extraction using response surface methodology by Mnif, Inès, Besbes, Souheil, Ellouze-Ghorbel, Raoudha, Ellouze-Chaabouni, Semia, Ghribi, Dhouha

“…Background Statistically based experimental designs were applied to Bacillus subtilis SPB1 biosurfactant extraction. The extracted biosurfactant was tested as…”
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Optimal coupling of a PEM electrolyser to a PV generator: Case of Adrar by Ghribi-Diaf, Djamila, Diaf, Said, Khelifa, Abdellah, Kellil, Nouamane

“…An optimization method is proposed and applied to study a PV-electrolyzer system consisting of Solarex MSX60 modules and PEM electrolyser H-Tec StaXX7 stacks…”
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A New Raw-Starch-Digesting a-Amylase: Production Under Solid-State Fermentation on Crude Millet and Biochemical Characterization by Maktouf, S., unite Enzymes et Bioconversion, Sfax, Tunisia, Kamoun, A., Laboratoire de Chimie Industrielle II, Sfax, Tunisia, Moulis, C., INSA, Toulouse, France, Remaud-Simeon, M., INSA, Toulouse, France, Ghribi, D., unite Enzymes et Bioconversion, Sfax, Tunisia, Chaabouni, S.E., unite Enzymes et Bioconversion, Sfax, Tunisia

“…A new Bacillus strain degrading starch, named Bacillus sp. UEB-S, was isolated from a southern Tunisian area. Amylase production using solid-state fermentation…”
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Improvement of Bacillus thuringiensis δ-endotoxins synthesis yields through acquisition of erythromycin resistance by TOUNSI, Slim, ZOUARI, Nabil, GHRIBI, Dhouha, J'MAL, Anis, JAOUA, Samir

“…The acquisition of the erythromycin resistance by Bacillus thuringiensis kurstaki improved yields of delta-endotoxins in sporulating cells ranging from 134 to…”
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Effet de l’administration du biosurfactant de Bacillus subtilis SPB1 sur l’activité de l’enzyme de conversion de l’angiotensine dans le sérum et le cœur des rats rendus obèses par un régime riche en fructose et en graisses de mouton by Zouari, R., Hamden, K., El Feki, A., Chaabouni, K., Ayedi, F., Ellouze-Chaabouni, S., Ghribi-Aydi, D.

“…L’inhibition de l’enzyme de conversion de l’angiotensine (ECA) est établie en tant qu’une approche thérapeutique efficace de l’hypertension par l’utilisation…”
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