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Soil Improvement
(2025-02-17) GHERIS Abderrahim
لغة الخدمات في القطاع الخاص بمدينة تبسة-الواقع والبدائل الجاذبة
(2026-02-17) سكينة مناعي
Abstract: This dissertation aims to analyze the reality of service language in the private tourism sector in the city of Tebessa and to examine the extent to which it aligns with customers’ needs and expectations. It does so by studying the impact of the language used in hotels and restaurants on service quality and customer satisfaction, as well as by uncovering the communicative intentions embedded in service interactions and their relationship to the local socio-cultural context, linguistic diversity, and spontaneity, and how these factors influence customer loyalty to the tourism establishment. The study adopts a descriptive–analytical approach from a pragmatic perspective, grounded in the functional view of language, and based on the Cooperative Principle and Speech Act Theory. These frameworks are applied to a field corpus consisting of recorded interviews between service providers and their clients in both classified and non-classified hotels and restaurants in Tebessa. This methodological choice aligns with the nature of service discourse: the Cooperative Principle is applied to hotel communication, as it relies on exchanging precise information that requires adherence to the maxims of quantity, quality, relevance, and manner; whereas Speech Act Theory is used to analyze restaurant discourse due to its direct performative nature centered on requesting, offering, and persuading. Audio data were transcribed and analyzed using approximate phonological symbols, while French segments were retained in their original form to highlight the multilingual reality of the setting The findings reveal that service language in the studied sector is characterized by simplicity and directness, shaped by the local social and cultural context. Linguistic diversity contributes to facilitating communication, while emotional and affective dimensions play a significant role in fostering customer loyalty. The dissertation recommends leveraging linguistic diversity as a cultural resource, employing local language as an identity marker, integrating a “Service Language” module into vocational training programs, developing specialized glossaries, and adopting flexible linguistic strategies that respond to the diversity of customers. الملخص تهدف هذه الأطروحة إلى تحليل واقع لغة الخِدْمات في القطاع السياحي الخاص بمدينة تبسّة، والكشف عن مدى توافقها مع حاجات الزبائن وتوقّعاتهم، وذلك من خلال دراسة تأثير اللّغة المستعمَلة في الفنادق والمطاعم على جودة الخدمة ورضا الزبائن، وفهم المقاصد التواصليّة الكامنة في التفاعلات الخدميّة، ومدى ارتباطها بالسياق السوسيو-ثقافي المحلّي، وبالتعدّد اللّغوي والعفويّة، وانعكاس ذلك على ولاء الزّبائن للمؤسّسة السياحيّة. وتعتمد الدّراسة المنهج الوصفي التّحليلي من منظور تداولي، استنادًا إلى المقاربة الوظيفيّة للّغة، ومرتكزة على مبدأ التّعاون ونظريّة الأفعال الكلاميّة في تحليل مدوّنة ميدانيّة مستمدّة من مقابلات مسجّلة بين مقدّمي الخدمة وزبائنهم في فنادق ومطاعم مصنّفة وأخرى غير مصنّفة بمدينة تبسّة. ويأتي اختيار هذا المنهج انسجامًا مع طبيعة الخطاب الخدمي؛ إذ طُبّق مبدأ التّعاون على الخطاب الفندقي لكونه قائمًا على تبادل معلومات دقيقة تتطلّب احترام مبادئ الكمّ والكيف والمناسبة والأسلوب، بينما استُخدمت نظرية أفعال الكلام في تحليل الخطاب المطعمي بسبب طبيعته الإنجازية المباشرة القائمة على الطّلب والعرض والإقناع. وقد جرى تفريغ البيانات الصوتيّة وتحليلها برموز فونولوجيّة تقريبيّة، مع الإبقاء على المقاطع الفرنسيّة بصيغتها الأصليّة لإبراز واقع التعدّد اللّغوي. وأظهرت النّتائج أنّ لغة الخدمات في القطاع المدروس تتّسم بالبساطة والمباشرة، وتخضع للسّياق الاجتماعي والثّقافي المحلّي، وأنّ التعدّد اللغوي يسهم في تسهيل التّواصل، بينما يمثّل البعد الوجداني والانفعالي عاملًا مؤثرًا في بناء علاقة ولاء مع الزّبون. وتوصي الأطروحة بضرورة استثمار التعدّد اللغوي بوصفه موردًا ثقافيًا، وتوظيف اللّغة المحليّة كعنصر هويّاتي، وإدماج مادة "لغة الخِدْمَات" في برامج التّكوين المهني، وإعداد معاجم متخصّصة، واعتماد استراتيجيّات لغويّة مرِنة تستجيب لتنوّع الزبائن. Résumé : Cette thèse vise à analyser la réalité de la langue des services dans le secteur touristique privé de la ville de Tébessa, et à révéler dans quelle mesure elle correspond aux besoins et aux attentes des clients. Cela se fait à travers l’étude de l’impact de la langue utilisée dans les hôtels et les restaurants sur la qualité du service et la satisfaction des clients, ainsi que par la compréhension des intentions communicatives sous-jacentes aux interactions de service, et leur lien avec le contexte socio-culturel local, le plurilinguisme et la spontanéité, ainsi que leur impact sur la fidélité des clients envers l’établissement touristique. L’étude adopte une approche descriptive et analytique dans une perspective pragmatique, fondée sur l’approche fonctionnelle de la langue, et reposant sur le principe de coopération et la théorie des actes de langage pour analyser un corpus de terrain constitué d’entretiens enregistrés entre les prestataires de services et leurs clients dans des hôtels et restaurants classés et non classés de la ville de Tébessa. Le choix de cette méthode est en adéquation avec la nature du discours de service : le principe de coopération a été appliqué au discours hôtelier, car il repose sur l’échange d’informations précises nécessitant le respect des maximes de quantité, de qualité, de pertinence et de manière, tandis que la théorie des actes de langage a été utilisée pour analyser le discours de restauration en raison de sa nature performative directe, fondée sur la demande, l’offre et la persuasion. Les données audio ont été transcrites et analysées à l’aide de symboles phonologiques approximatifs, tout en conservant les segments en français dans leur forme originale afin de mettre en évidence la réalité du plurilinguisme. Les résultats ont montré que la langue des services dans le secteur étudié se caractérise par la simplicité et la directité, et qu’elle est influencée par le contexte social et culturel local. Le plurilinguisme contribue à faciliter la communication, tandis que la dimension affective et émotionnelle constitue un facteur déterminant dans la construction d’une relation de fidélité avec le client. La thèse recommande de valoriser le plurilinguisme comme une ressource culturelle, de promouvoir l’usage de la langue locale en tant qu’élément identitaire, d’intégrer un module « langue des services » dans les programmes de formation professionnelle, d’élaborer des glossaires spécialisés, et d’adopter des stratégies linguistiques flexibles répondant à la diversité des clients.
Temperature dependence of the electrical resistivity and absolute thermoelectric power of amorphous metallic glass Ni33.3Zr66.7
(Journal des solides non cristallins Volume 481 ,1er février 2018, Pages 352-360, 2018-02-01) B. Smili; A. Messaoud; W. Bouchelaghem; L. Abadlia; N. Fazel; A. Benmoussa; I. Kaban; F. Gasser; J.G Gasser
Electron transport properties and thermal stability of Ni33.3Zr66.7 metallic glass (MG) have been studied using an original device for simultaneous measurements of electrical resistivity and absolute thermoelectric power (ATP) controlled by a LabView software written by one of us. The electrical resistivity and absolute thermoelectric power were measured simultaneously and very accurately over a temperature range from 25 to 400 °C with a nominal heating rate of 0.5 K min−1. The electronic thermal conductivity was also determined using the Wiedemann–Franz law in the same temperature range. Due to its high efficiency, this technique is more and more used because it is characterized by a high sensitivity to detection of the phase transitions related to electronic transport, which is the aim of this study. Analysis of the temperature dependence of the resistivity and ATP of the Ni33.3Zr66.7 glassy ribbons proves the potential of this characterization method to study the thermal behavior of metallic glasses. The crystal structure and the morphology of Ni33.3Zr66.7 metallic glass in the asquenched state and after heat treatments were studied using X-ray diffraction (XRD), and scanning electron microscope (SEM)
Experimental and computational investigations on mechanically alloyed Fe55Co30Ni15 powders
(Powder Technology, 2023-12-03) Abdelkrim Houssou; Samia Amirat; Hana Ferkous; Safia Alleg; Karima Dadda; Rahima Boulechfar; Lakhdar Abadlia; Wahiba Bouchelaghem; Javed Khan Bhutto; Maha Awjan Alreshidi; Krishna Kumar Yadav; Noureddine Elboughdiri; Alessandro Erto; Yacine Benguerba
Nanocrystalline Fe55Co30Ni15 powder alloy was created via mechanical alloying in a planetary ball mill (Fritsch P7) under an argon atmosphere. Structural, microstructural, and magnetic features were analyzed using X-ray diffraction (XRD), scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDX), and vibrating sample magnetometry (VSM). The results indicated a coexistence of body-centered cubic (BCC) and face-centered cubic (FCC) solid solutions, with BCC being predominant (96%) and displaying an average grain size of 11 nm. Both BCC and FCC phases exhibited a significant density of dislocations (~1016 per square meter). The powder alloy demonstrated soft magnetic behavior with a saturation magnetization of 206.5 emu/g and a coercivity of 32.63 Oe, indicative of multidomain properties based on the Mr./Ms. ratio. Theoretical analysis confirmed precise computational simulation parameters at room temperature.
New experimental methodology, setup and LabView program for accurate absolute thermoelectric power and electrical resistivity measurements between 25 and 1600 K: Application to pure copper, platinum, tungsten, and nickel at very high temperatures
(Review of Scientific Instruments 85, 095121 (2014); doi: 10.1063/1.4896046, 2014-09-29) L. Abadlia; F. Gasser; K. Khalouk; M. Mayoufi; J. G. Gasser
In this paper we describe an experimental setup designed to measure simultaneously and very accurately the resistivity and the absolute thermoelectric power, also called absolute thermopower or absolute Seebeck coefficient, of solid and liquid conductors/semiconductors over a wide range of temperatures (room temperature to 1600 K in present work). A careful analysis of the existing experimental data allowed us to extend the absolute thermoelectric power scale of platinum to the range 0-1800 K with two new polynomial expressions. The experimental device is controlled by a LabView program. A detailed description of the accurate dynamic measurement methodology is given in this paper. We measure the absolute thermoelectric power and the electrical resistivity and deduce with a good accuracy the thermal conductivity using the relations between the three electronic transport coefficients, going beyond the classical Wiedemann-Franz law. We use this experimental setup and methodology to give new very accurate results for pure copper, platinum, and nickel especially at very high temperatures. But resistivity and absolute thermopower measurement can be more than an objective in itself. Resistivity characterizes the bulk of a material while absolute thermoelectric power characterizes the material at the point where the electrical contact is established with a couple of metallic elements (forming a thermocouple). In a forthcoming paper we will show that the measurement of resistivity and absolute thermoelectric power characterizes advantageously the (change of) phase, probably as well as DSC (if not better), since the change of phases can be easily followed during several hours/days at constant temperature. © 2014 AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4896046]