```
 

Communautés dans DSpace

Sélectionner une communauté pour parcourir les collections sous-jacentes.

Dépôts récents

Vignette d'image
Item
هياكل وتنظيم المؤسسة
(جامعة عين تموشنت بلحاج بوشعيب, 2026) هنداوي , محفوظ
Vignette d'image
Item
الثقافة التنظيمية و تأثيرها على الاداء الوظيفي: دراسة ميدانية ببلدية أولاد الكيحل -عين تموشنت -أنموذجا
(UNIVERSITY OF AIN TEMOUCHENT, 2026-09-20) حياة،كريداك; محمد رضا،شريفي
This study aims to examine the relationship between organizational culture and job performance within the municipality of Ouled El Kihal in Ain Temouchent Province. Organizational culture is considered one of the most important factors influencing employees’ behavior and institutional effectiveness. The study was based on the following main research question: What is the role of organizational culture in improving job performance within the institution? The study adopted the descriptive analytical method and used a questionnaire as the main tool for data collection. The sample consisted of 61 employees selected intentionally from different administrative, technical, and service departments of the municipality. The collected data were analyzed using frequencies and percentages, based on the structural functional approach and Theory Z in management. The findings revealed the existence of a clear organizational culture within the institution, based on shared values and principles that contribute to strengthening employees’ sense of belonging and professional commitment. The results also showed a satisfactory level of job performance, reflected in employees’ satisfaction with their work and their ability to accomplish tasks on time. Furthermore, the study confirmed the existence of a positive relationship between organizational culture and job performance. The prevailing organizational values within the institution play a significant role in motivating employees, improving their professional productivity, and enhancing cooperation and discipline in the work environment. Based on these findings, the study recommended the need to strengthen positive organizational culture in public institutions through promoting values of cooperation, communication, and transparency, while also improving working conditions and paying greater attention to human resources in order to enhance job performance and achieve institutional goals.
Vignette d'image
Item
Vignette d'image
Item
Performance Comparison Between Two Perovskite Solar Cells Using SCAPS-1D Simulations
(2026) GHITRI Abdelhamid; BOUZIANE Allaeddine; BENZINA Amina
This work presents a numerical study of perovskite solar cells based on SCAPS-1D, focusing on the effect of absorber architecture on device performance. Single-layer MAPbI3 and bilayer MAPbI3/MASnI3 configurations are investigated using FTO/WS2/absorber/CuO/Au structures. The influence of absorber thickness, acceptor concentration, defect density, and back-contact work function on the photovoltaic parameters is systematically analyzed. A comparative assessment of the single-layer and bilayer configurations is performed in terms of carrier transport, charge collection, and power conversion efficiency. The results provide a physical understanding of the parameters governing device performance and identify suitable conditions for the optimization of bilayer perovskite solar cells.
Vignette d'image
Item