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82 results on '"Belghith A"'

1. Robust Position Control of a Two-Sided 1-DoF Impacting Mechanical Oscillator Subject to an External Persistent Disturbance by Means of a State-Feedback Controller

Author

Firas Turki, Hassène Gritli, and Safya Belghith

Subjects
Electronic computers. Computer science, QA75.5-76.95
Abstract

This paper proposes a state-feedback controller using the linear matrix inequality (LMI) approach for the robust position control of a 1-DoF, periodically forced, impact mechanical oscillator subject to asymmetric two-sided rigid end-stops. The periodic forcing input is considered as a persistent external disturbance. The motion of the impacting oscillator is modeled by an impulsive hybrid dynamics. Thus, the control problem of the impact oscillator is recast as a problem of the robust control of such disturbed impulsive hybrid system. To synthesize stability conditions, we introduce the S-procedure and the Finsler lemmas by only considering the region within which the state evolves. We show that the stability conditions are first expressed in terms of bilinear matrix inequalities (BMIs). Using some technical lemmas, we convert these BMIs into LMIs. Finally, some numerical results and simulations are given. We show the effectiveness of the designed state-feedback controller in the robust stabilization of the position of the impact mechanical oscillator under the disturbance.

Published
2019
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2. Low back pain in pregnant women: A necessary or an avoidable evil?

Author

Dorra Ben Nessib, Sawssem Armi, Hanène Ferjani, Mariem Garsi, Senda Ben Sassi, Sarra Kerkeni, Rania Ben Aissa, Ghada Berraies, Dhia Kaffel, Nabil Mathlouthi, Kaouther Maatallah, Cyrine Belghith, Olfa Slimani, and Wafa Hamdi

Subjects
Nursing (miscellaneous), Rheumatology, Rehabilitation, Physical Therapy, Sports Therapy and Rehabilitation, Orthopedics and Sports Medicine, Chiropractics
Published
2023

9. VP33.16: Bronchogenic cyst of the tongue in a fetus: an exceptional case

Author

Sawssam Armi, G. Berraies, Tahar Makhlouf, Mathlouthi N, M. Garci, A. Ferjaoui, K. Neji, Cyrine Belghith, and Olfa Slimani

Subjects
Fetus, Radiological and Ultrasound Technology, business.industry, Bronchogenic cyst, Obstetrics and Gynecology, General Medicine, Anatomy, medicine.disease, medicine.anatomical_structure, Reproductive Medicine, Tongue, medicine, Radiology, Nuclear Medicine and imaging, business
Published
2021

12. EP41.05: Osteogenesis imperfecta

Author

Belghith, C., primary, Berraies, G., additional, Armi, S., additional, Garci, M., additional, Makhlouf, T., additional, Slimani, O., additional, and Mathlouthi, N., additional

Published
2022
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17. EP40.19: First trimester cystic hygroma

Author

Belghith, C., primary, Khadhraoui, G., additional, Oumeima, S., additional, Berraies, G., additional, Armi, S., additional, Garci, M., additional, Makhlouf, T., additional, Slimani, O., additional, and Mathlouthi, N., additional

Published
2022
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19. EP41.03: Lissencephaly and cleft lip and palate

Author

G. Berraies, C. Belghith, H. Jemel, S. Armi, M. Garci, T. Makhlouf, O. Slimani, and N. Mathlouthi

Subjects
Reproductive Medicine, Radiological and Ultrasound Technology, Obstetrics and Gynecology, Radiology, Nuclear Medicine and imaging, General Medicine
Published
2022

20. EP40.06: Non‐immune hydrops fetalis

Author

G. Berraies, C. Belghith, A. Tissaoui, S. Armi, M. Garci, T. Makhlouf, and O. Slimani

Subjects
Reproductive Medicine, Radiological and Ultrasound Technology, Obstetrics and Gynecology, Radiology, Nuclear Medicine and imaging, General Medicine
Published
2022

23. EP41.05: Osteogenesis imperfecta

Author

C. Belghith, G. Berraies, S. Armi, M. Garci, T. Makhlouf, O. Slimani, and N. Mathlouthi

Subjects
Reproductive Medicine, Radiological and Ultrasound Technology, Obstetrics and Gynecology, Radiology, Nuclear Medicine and imaging, General Medicine
Published
2022

25. EP40.19: First trimester cystic hygroma

Author

C. Belghith, G. Khadhraoui, S. Oumeima, G. Berraies, S. Armi, M. Garci, T. Makhlouf, O. Slimani, and N. Mathlouthi

Subjects
Reproductive Medicine, Radiological and Ultrasound Technology, Obstetrics and Gynecology, Radiology, Nuclear Medicine and imaging, General Medicine
Published
2022

35. VP05.26: Recurrent vulvorectal angiomyofibroblastoma: case report

Author

C. Belghith, G. Berraies, M. Garci, T. Makhlouf, N. Mathlouthi, Olfa Slimani, and S. Armi

Subjects
medicine.medical_specialty, Angiomyofibroblastoma, Reproductive Medicine, Radiological and Ultrasound Technology, business.industry, medicine, Obstetrics and Gynecology, Radiology, Nuclear Medicine and imaging, General Medicine, business, Dermatology
Published
2021

36. Towards general Internet of Vehicles networking: Routing protocols survey

Author

Imen Jemili, Abdelfettah Belghith, Chahrazed Ksouri, and Mohamed Mosbah

Subjects
Routing protocol, Computational Theory and Mathematics, Computer Networks and Communications, business.industry, Computer science, Computational intelligence, The Internet, business, Software, Computer Science Applications, Theoretical Computer Science, Computer network
Published
2020

37. Context‐aware routing framework for duty‐cycled wireless sensor networks

Author

Dhouha Ghrab, Abdelfettah Belghith, Imen Jemili, and Mohamed Mosbah

Subjects
Computer Networks and Communications, business.industry, Computer science, media_common.quotation_subject, Context (language use), Computer Science Applications, Theoretical Computer Science, Computational Theory and Mathematics, Duty cycle, Context awareness, Routing (electronic design automation), business, Duty, Wireless sensor network, Software, media_common, Computer network
Published
2020

39. High salinity impacts germination of the halophyte Cakile maritima but primes seeds for rapid germination upon stress release

Author

Wael Taamalli, Andreas Pich, Ikram Belghith, Hans-Peter Braun, Chedly Abdelly, and Ahmed Debez

Subjects
0106 biological sciences, 0301 basic medicine, Soil salinity, Physiology, Germination, Plant Science, Sodium Chloride, 01 natural sciences, 03 medical and health sciences, Halophyte, Genetics, Storage protein, Extremophile, chemistry.chemical_classification, biology, food and beverages, Salt-Tolerant Plants, Cell Biology, General Medicine, biology.organism_classification, Salinity, Horticulture, 030104 developmental biology, Cakile, chemistry, Seedling, Brassicaceae, Seeds, 010606 plant biology & botany
Abstract

Seed germination recovery aptitude is an adaptive trait of overriding significance for the successful establishment and dispersal of extremophile plants in their native ecosystems. Cakile maritima is an annual halophyte frequent on Mediterranean coasts, which produces transiently dormant seeds under high salinity, that germinate fast when soil salinity is lowered by rainfall. Here, we report ecophysiological and proteomic data about (1) the effect of high salt (200 mM NaCl) on the early developmental stages (germination and seedling) and (2) the seed germination recovery capacity of this species. Upon salt exposure, seed germination was severely inhibited and delayed and seedling length was restricted. Interestingly, non-germinated seeds remained viable, showing high germination percentage and faster germination than the control seeds after their transfer onto distilled water. The plant phenotypic plasticity during germination was better highlighted by the proteomic data. Salt exposure triggered (1) a marked slower degradation of seed storage reserves and (2) a significant lower abundance of proteins involved in several biological processes (primary metabolism, energy, stress-response, folding and stability). Yet, these proteins showed strong increased abundance early after stress release, thereby sustaining the faster seed storage proteins mobilization under recovery conditions compared to the control. Overall, as part of the plant survival strategy, C. maritima seems to avoid germination and establishment under high salinity. However, this harsh condition may have a priming-like effect, boosting seed germination and vigor under post-stress conditions, sustained by active metabolic machinery.

Published
2018

41. VP07.10: Massive postcoital vulvar hematoma in an adolescent girl: a case report

Author

N. Mathlouthi, C. Belghith, G. Berraies, T. Makhlouf, M. Garci, S. Armi, and Olfa Slimani

Subjects
medicine.medical_specialty, Radiological and Ultrasound Technology, business.industry, General surgery, media_common.quotation_subject, Obstetrics and Gynecology, General Medicine, medicine.disease, Hematoma, Reproductive Medicine, medicine, Radiology, Nuclear Medicine and imaging, Girl, business, media_common
Published
2021

42. VP04.25: Sexual cord and stromal tumours of the ovary: about two cases

Author

Sawssam Armi, Cyrine Belghith, Olfa Slimani, M. Garci, Tahar Makhlouf, Mathlouthi N, G. Berraies, and N. Ben Saada

Subjects
Pathology, medicine.medical_specialty, Cord, Radiological and Ultrasound Technology, business.industry, Stromal tumours, Obstetrics and Gynecology, Ovary, General Medicine, medicine.anatomical_structure, Reproductive Medicine, Medicine, Radiology, Nuclear Medicine and imaging, business
Published
2021

43. VP02.04: Management of Caesarean scar pregnancy

Author

N. Mathlouthi, C. Belghith, S. Armi, B. Nahla, I. Attia, B. Guidara, T. Makhlouf, and Olfa Slimani

Subjects
medicine.medical_specialty, Pregnancy, Reproductive Medicine, Radiological and Ultrasound Technology, business.industry, Obstetrics, Obstetrics and Gynecology, Medicine, Radiology, Nuclear Medicine and imaging, General Medicine, business, medicine.disease
Published
2021

45. VP04.02: Granulosa cell tumour of the ovary: a study of six cases

Author

C. Belghith, S. Najar, N. Mathlouthi, Olfa Slimani, T. Makhlouf, I. Attia, A. Abdeljabber, and S. Armi

Subjects
medicine.anatomical_structure, Reproductive Medicine, Radiological and Ultrasound Technology, business.industry, medicine, Cancer research, Obstetrics and Gynecology, Radiology, Nuclear Medicine and imaging, Ovary, General Medicine, Granulosa cell tumour, medicine.disease, business
Published
2021

50. On the essential spectra of coupled operators matrix and application

Author

Marwa Belghith, Ines Walha, and Nedra Moalla

Subjects
General Mathematics, 010102 general mathematics, General Engineering, Fredholm integral equation, Operator theory, 01 natural sciences, Fredholm theory, Quasinormal operator, 010101 applied mathematics, Algebra, Semi-elliptic operator, symbols.namesake, Matrix (mathematics), Operator (computer programming), Multiplication operator, symbols, 0101 mathematics, Biological system, Mathematics
Published
2017

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