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Now showing 1 - 5 of 15

Recent Submissions

The Impact Of Applying Electronic Human Resource Management In Enhancing Administrative Empowerment
(University of Eloued جامعة الوادي, 2026-03-31) Delhoum ,Mohammed Elamin; Youcef ,Ahmed; Aissa ,Kadda
This study aimed to explore the impact of electronic human resource management, in its various dimensions (such as e-recruitment, e-training, electronic compensation and incentives system, e-performance appraisal, and e-communication), on administrative empowerment with its key components (delegation of authority, participation in decision-making, and effective communication) within Algeria Telecom. To answer this research question, a questionnaire was prepared and distributed to a sample of 35 employees from the organization. After analyzing the data using Smart PLS software, the study reached several findings, most notably the absence of a statistically significant impact of electronic human resource management on administrative empowerment at Algeria Telecom.
The Impact Of Digital Transformation On Financial Performance
(University of Eloued جامعة الوادي, 2026-03-31) Rekrak ,Mounia
In recent years, digital transformation (DT) has emerged as an important driver of organizational change, which is important to revolutionize various processes be it commercial, economic or commercial, enhance operational efficiency, and improve business success in organizations. Through this study and by examining the review of the literature and empirical evidence surrounding the impact of DT on financial performance (FP) across different industries and regulatory contexts. Through a comprehensive analysis of the existing literature, this study aims to contribute to a deeper understanding of the relationship of digital transformation and financial performance and provide valuable implications for both scholars and practitioners seeking to evolve in the digital landscape effectively. The results showed a statistically significant relationship between digital transformation and financial performance. Digital transformation helps the organization improve the efficiency of internal processes, thereby reducing transaction time. Moreover, digital transformation can provide smoother and faster financial services, enhancing customer satisfaction
تحضير السيليكا النانومترية من رمال منطقة الوادي و دراسة خصائصها الفيزيوكيميائية
(University of El Oued جامعة الوادي, 2026) عميار، وصال; عقبة ،فاطمة الزهراء
Nanosilica Materials is considered a strategic material that receives significant attention in nanotechnology and environmental applications, thanks to its unique structural properties and superb surface area. This study aims to valorize local natural resources by synthesizing high-purity amorphous nanosilica from the dune sands of the El-Oued region (Algeria). The experimental results demonstrated high efficiency in the extraction process, achieving an outstanding quantitative yield of 75.75%. Structural characterization using X-ray diffraction (XRD) confirmed the complete transformation of the quartz crystalline lattice into a pure amorphous phase, which was further supported by Fourier-transform infrared spectroscopy (FTIR) results showing the characteristic vibrational bands of (Si-O-Si) bonds. Furthermore, Scanning Electron Microscopy (SEM) and Energy-Dispersive X-ray spectroscopy (EDX) revealed a homogeneous porous structure at the nanoscale and an absolute chemical purity of silicon dioxide at 100%.تعتبر السيليكا النانوية مادة استراتيجية تحظى باهتمام بالغ في التطبيقات النانوتكنولوجية والبيئية بفضل خصائصها البنيوية الفريدة ومساحتها السطحية الفائقة. تهدف هذه الدراسة إلى تثمين الموارد الطبيعية المحلية من خلال استخلاص السيليكا النانوية اللابلورية وبدرجة نقاوة عالية من رمال كثبان منطقة الوادي (الجزائر). أظهرت النتائج التجريبية كفاءة عالية في عملية الاستخلاص بمردود كمي متميز بلغت نسبته % 75.75 أكد التوصيف البنيوي باستخدام تقنية حيود الأشعة السينية (XRD) التحول التام للشبكة البلورية للكوارتز إلى طور لابلوري نقي، وهو ما عززته نتائج الطيف بالأشعة تحت الحمراء (FTIR) التي أظهرت الحزم الاهتزازية المميزة لروابط(Si-O-Si) . كما كشف المجهر الإلكتروني الماسح (SEM) والتحليل العنصري (EDX) عن بنية مسامية متجانسة في المقياس النانوي ونقاء كيميائي مطلق لأكسيد السيليكون بنسبة 100% .
دراسة تأثير ارتفاع فوهة الرش على الخصائص البنيوية والبصرية للأغشية الرقيقة لأكسيد الزنك (ZnO) المحضرة بتقنية الرش بالانحلال الحراري
(University of El Oued جامعة الوادي, 2026) بوخزة ،فتحي; ناقوص، محمد الطيب
This study aims to fabricate undoped zinc oxide (ZnO) thin films on glass substrates using the spray pyrolysis technique (SPT), where zinc acetate dihydrate (Zn(CH₃COO)₂·2H₂O) was utilized as the precursor solution. The effect of the nozzle-to-substrate distance (15 cm, 20 cm, 25 cm, 30 cm) on the properties of the deposited thin films was investigated. To analyze the fabricated samples, various characterization techniques were employed, including X-ray diffraction (XRD), Ultraviolet-Visible spectroscopy (UV-Vis), and Fourier Transform Infrared Spectroscopy (FTIR). The results revealed that the ZnO films crystallized in the wurtzite hexagonal structure with a preferred orientation along the (002) direction. Furthermore, an increase in the crystallite size from 21.6 nm to 40.1 nm was observed with increasing nozzle height. The prepared films exhibited high transparency, with an optical transmittance of approximately 88%. In addition, the FTIR spectrum displayed a broad absorption band corresponding to the Zn–O bond stretching mode. Owing to the excellent properties of the fabricated films, such as the (002) mono-orientation and high transparency, they hold great potential for use as optical windows in solar cells, gas sensors, and antibacterial applications.هدف هذه الدراسة إلى تصنيع أغشية رقيقة من أكسيد الزنك (ZnO) غير المطعّم على ركائز زجاجية باستخدام تقنية الرش بالانحلال الحراري (SPT)، حيث استُخدمت أسيتات الزنك الثنائية (Zn(CH₃COO)₂·2H₂O) كسابقة. تم دراسة تأثير المسافة بين فوهة الرش والركيزة (15 cm، 20 cm، 25 cm، 30 cm) على خصائص الأغشية الرقيقة المترسبة. ولتحليل العينات المحضرة، استُخدمت تقنيات متعددة شملت حيود الأشعة السينية (XRD)، والتحليل الطيفي للأشعة فوق البنفسجية والمرئية (UV-Vis)، والتحليل الطيفي بالأشعة تحت الحمراء بتحويل فورييه (FTIR). وأظهرت النتائج أن أغشية ZnO تبلورت وفق البنية السداسية المتراصة (Wurtzite hexagonal)، مع اتجاه تبلور مفضل على طول المستوى (002). كما لوحظ ازدياد في حجم البلورات من 21.6 nm إلى 40.1 nm بزيادة ارتفاع فوهة الرش. وأظهرت الأغشية المحضرة شفافية عالية، حيث بلغت النفاذية البصرية نحو 88%. بالإضافة إلى ذلك، كشف طيف FTIR عن نطاق امتصاص واسع يُعزى إلى نمط اهتزاز استطالة رابطة Zn–O. وبفضل الخصائص المتميزة للأغشية المصنعة، مثل التوجه الأحادي للمستوى (002) والشفافية العالية، فإنها تمتلك إمكانيات واعدة للاستخدام كنوافذ بصرية في الخلايا الشمسية، وأجهزة استشعار الغازات، والتطبيقات المضادة للبكتيريا.
The Impact Of Digital Transformation On The Performance
(University of Eloued جامعة الوادي, 2026-03-31) Bessouyah ,Mouna; Mimouni ,Yassine
This study aims to test the impact of digital transformation indicators on the performance of startups, Expensya Foundation, as a model during the period 2014-2024, using the ARDL model, relying on the performance of startups as a dependent variable and digital transformation indicators as explanatory variables. The results of the standard study found that there is a positive and significant impact of the cloud computing use index, the software integration index (INT), the artificial intelligence index (AI), and the mobile application use index (MOB) on the annual revenue growth of startups (RG)in the long and short term. The study recommended the need to develop an environment that encourages investment in digital technologies and attempts to integrate artificial intelligence technologies in all transactions carried out by institutions.