Benatia Adda , Hamid Boumedien , Oumelkheir Baghdadi , Said Hassaine , Salima Bouziane

كلية العلوم التطبيقية-جامعة ابن خلدون – تيارت · الجزائر

Aujourd'hui, divers techniques d'automatisation sont en train d'être adoptées et étudiées pour augmenter la productivité, améliorer la précision, et éliminer les erreurs humaines. Par exemple pour les industries de l’emballage, le tri des couleurs manuellement est une tache qui prend dutemps, fatigante et fastidieuse .Pour rendre cette tache automatique, facile et pratique, nous avons essayé de concevoir et mettre en œuvre une technique permettant de déterminer la couleur d'unobjet tout en utilisant un logiciel de supervision LABVIEW .Cette technique est présentée sous-forme d’une interface homme machine à travers laquelle un operateur peut visualiser, afficher desi mages vues par camera, et faire la détection de couleurs, tout cela se fait à distance

Farida Gasi , Ḥamida Rafil, Ḥasid Farida

كلية الاداب واللغات-جامعة مولود معمري - تيزي وزو · الجزائر

إيمان بولس عيسى عمر, محمد عمران

كلية العلوم التربوية-جامعة القدس · فلسطين

هدفت هذه الدراسة إلى التعرف على جاهات إداريي مدارس البطريركية اللاتينية ومعلميها نحو اتالثقافة التنظيمية في مدارسها في فلسطين .تكون مجتمع الدراسة من جميع مدارس البطريركية اللاتينية في فلسطين خلال العام 2007/2008 والبالغ عددها )13 (مدرسة، حيث بلغت عينة اسة من ست مدارس من مدارس البطريركية اللاتينية وبنسبة الدر)46(%، والمؤلفة من )213 (يبا، ولتحقيق هذه الدراسة تم استخدام استبانة تكونت من مستج)92 (فقرة موزعة على خمس من صدقها وثباتها ، وتم حساب معامل الثبات بطريقة الامجالات ، وقد تم التأكدختبار وإعادة الاختبار )test-retest ( حيث بلغ معامل الثبات)0.88( ،وبطريقة الاتساق الداخلي حيث بلغ معامل كرونباخ ألفا )Cronbach Alpha (للاستبانة ككل )0.90. (اريي مدارس البطريركية اللاتينية ومعلميها نحو الثقافة خلصت نتائج الدراسة إلى أن اتجاهات إدالتنظيمية في مدارسها في فلسطين لمجالات أداة الدراسة كانت مرتفعة وايجابية بشكل عام، وعدم وجد فروق ذات دلالة إحصائية عند مستوى الدلالة (0.05 ≥α) في متوسط اتجاهات إداريي علميها نحو الثقافة التنظيمية في فلسطين تعزى لمتغيرات مدارس البطريركية اللاتينية وم )الجنس والمؤهل العلمي والمسمى الوظيفي(، ووجود فروق ذات دلالة إحصائية عند مستوى الدلالة(0.05 ≥α)اريي مدارس البطريركية اللاتينية ومعلميها نحو الثقافة في متوسط اتجاهات إدتنظيمية في مدارسها في فلسطين تعزى إلى متغيرات العمر ال )لصالح المبحوثين ذوي الأعمار من 20 إلى اقل من 30 سنة(، وسنوات الخبرة )لصالح أصحاب الخبرة من 5 سنوات إلى أقل من 10 سنوات(، والمادة التي يدرسها المعلم )لصالح العلوم الطبيعية(، و موقع المدرسة )لصالح مدرسة الزبابدة.(صت الباحثة إلى مجموعة من التوصيات أبرزها تعزيز الاستوفي ضوء نتائج الدراسة خلمرار في بقاء واعتماد الكلة للمناخ التنظيمي للمدارس ، حيث حصلت معظم الفقرات سياسات التربوية المشلإدارة العليا لمدارس البطريركية اللاتينية نظام التقاعد على متوسطات عالية، وضرورة توفير ارون بالأمن الوظيفي في هذه المدرسة، وأن تعد الإدارة العللعاملين حتى يشعليا لمدارس نية سياسة واضحة في الترقية تستند إلى العدل والمساواةالبطريركية اللاتي.

آلاء اشرف عبد فرحان العاني, أمجد رحيم محمد الكبيسي

كلية التربية للعلوم الانسانية-جامعة الأنبار · العراق

A. Farah, Djamel Adrouche, R. Sadoun

المدرسة الوطنية المتعددة التقنيات - الجزائر · الجزائر

Ce travail consiste à concevoir et à implémenter sur un composant FPGA, un cryptoprocesseur réalisant les fonctions de base d'un microprocesseur en plus d'une fonction spécifique dédiée au chiffrement et déchiffrement des données. La fonction de chiffrement/déchiffrement du cryptoprocesseur est réalisée par l'algorithme à clef secreète D.E.S (Data Encryption Standard). En premier lieu, nous commencerons par concevoir et implémenter sur un composant FPGA l'algorithme D.E.S et de ses divers options architecturales. En second lieu, nous procéderons à la conception et l'implémentation du microprocesseur couplé à l'unité de chiffrement/déchiffrement, tout en donnant d'une part la possibilité d'interchanger plusieurs algorithmes crytographiques pour la réalisation de la fonction de chiffrement/déchiffrement du cryptoprocesseur et d'autre part la possibilité d'étendre les fonctionnalités du cryptoprocesseur par l'ajout d'autres fonctions cryptographiques, à savoir, échange de clefs, authentification et signature numérique.

Haroun I. M. Ismail, Mutaman A. A. Kehail , Nada Algaily Abd Albagi Dafalla

كلية الهندسة والتكنولوجيا-جامعة الجزيرة · السودان

X-ray, as and ionizing radiation , is usually used in medicinal diagnosis and is considered as one of the main sources that cause mutation in the biological system samples of sorghum and sunflower seeds were submitted to specific dose of X-ray and then grown to study some aspects of the genetical changes in the first and second generation quantitatively. This study aimed to investiges the effect of X-ray on some biochemical characteristics of sorghum and sunflower seeds. The seeds of the third generation of sorghum and sunflower with the same color and size, were selected and divided into two groups (control and treated).Weight, moisture, ash, oil, protein, fiber, carbohydrates and minerals contents of the control and treated samples were determined for sorghum and sunflower seeds. The results showed significant differences in moisture, ash, oil, protein, and fiber contents in the treated samples compared to control samples and the carbohydrates in the treated seeds was less than the control . There was no significant difference in weight between the treated and control seeds as well as for minerals. However, the considerable high increase in oil and protein content in sunflower treated seeds need to be seriously attended to in the new future research .The study recommends to conduct similar research for some of legumes and oil seed crops such as faba been and ground nuts in order to study the effect of radiation.

محمد حوة , نور الدين حقيقي

كلية العلوم الإنسانية والاجتماعية-جامعة الجزائر 2 - أبو القاسم سعد الله · الجزائر

يجري التأكيد على دور الصناعات الصغيرة والمتوسطة باعتبارها النمط الأكثر فعالية في تحريك القوى العاملة شبه الماهرة وغير الماهرة باتجاه عملية التصنيع، وهو ما يأتي تزامنا مع الاهتمام الذي يعطى عادة إلى مسألتي: توفير فرص العمل للأفراد الذين يتسمون بمهارة عالية نسبيا وتوسيع نطاق التنمية الصناعية في الاقتصاد ليشمل كافة المجالات، وسيتبع ذلك الكثير من التساؤلات بشأن كل من وضع الحدود الدقيقة للصناعات الصغيرة والمتوسطة لتميزها عن الصناعات الكبيرة وعلاقة حجم المؤسسة بالكثافة النسبية للعنصر الإنتاجي من جانب وبكفاءة استخدام المدخلات من جانب آخر، وكل هذا يقدم صورة شاملة عن الصناعات الصغيرة في علاقاتها الهيكلية باعتبارات الموقعية وتنظيماتها المؤسسية.

Abdalla M. Abdelatif, Alia Saeed Ahmed Amin

كلية الطب البيطري-جامعة الخرطوم · السودان

The present study has been conducted in order to investigate theseasonal variation as well as the effect of age and sex on certain bloodconstituents in the one-humped camels (Camelus dromedarius).Furthermore, the seasonal variation in the milk composition and thebotanical and chemical composition of plant parts consumed by camelswere investigated. The study has been conducted on 210 indigenousArabian camel of different age (1-18 years) and sex, and kept undernatural range in Southern Darfur.The data analysis revealed that the season had significant effectson some of the haematological indices, metabolites and mineralconcentrations. These parameters showed slight variations related to ageand sex. The red blood cells count, lymphocytes and basophilspercentages increased significantly during the dry season, while theosmotic resistance, MCV, MCH and neutrophils percentage increasedsignificantly during the green season. The serum levels of total protein,globulins and triglycerides increased significantly during the dry season,while the levels of plasma glucose, serum urea, creatinine, phosphorus(P) and calcium (Ca) increased significantly during the green season.The PCV, neutrophils percentage, serum total protein and serum Caconcentration increased significantly with age, while the lymphocytespercentage, serum P and serum sodium (Na) concentration decreasedsignificantly with age. The red blood cells count and PCV level were theonly investigated parameters that showed significant intersexdifferences. The levels of red blood cells count and PCV weresignificantly higher in males.The study showed that seasonal variation has a marked effect onmilk composition. The percentages of milk moisture and fat increasedsignificantly during the dry season, while lactose percentage increasedsignificantly during the green season.The findings of the present study indicate that camels are selectivebrowser rather than grazer. Furthermore, they are selective feeder to theparts of pasture plants they consume. The percentages of crude protein(CP), crude fibre (CF) and nitrogen free extract (NFE) of pasture plantsselected by camels were significantly higher, while ash percentage wassignificantly lower during the dry season.The results obtained in the present study indicate that thenutritional state could induce significant changes in the physiologicalresponses of the dromedary camel; the available forage during the greenseason improved the body condition, the blood metabolites and mineralprofile of camels and the milk composition.The results indicate that despite camel’s selectivity and uniqueadaptation to arid conditions, glucose, urea, P and Ca levels were lowerduring the dry season. Therefore, it could be beneficial to provideconcentrate feed to camels kept under dry tropical conditions.

Fawaz Aqel, Rif'at Abdel-Qader Issa

كلية الدراسات العليا -جامعة النجاح الوطنية · فلسطين

The main purpose of this study was to assess the factual role played by the English language supervisor in Jenin district public secondary schools based on the perceptions of English language teachers and principals of these schools. The study tried also to investigate the effect of the respondents' gender, qualification, experience and profession on their perception of the English language supervisor's role.This study attempted to answer the following questions:1. What is the factual role played by the English language supervisor in Jenin district public secondary schools as perceived by the English language teachers (males and females) of these schools?2. Is the English language teacher's perception of the factual role played by the English language supervisor in Jenin district public secondary schools affected by the teacher's gender?3. Is the English language teacher's perception of the factual role played by the English language supervisor in Jenin district public secondary schools affected by the teacher's qualification?4. Is the English language teacher's perception of the factual role played by the English language supervisor in Jenin district public secondary schools affected by the teacher's experience?5. What is the factual role played by the English language supervisor in Jenin district public secondary schools as perceived by the principals of these schools?6. Is the principal's perception of the factual role played by the English language supervisor in Jenin district public secondary schools affected by the principal's gender?7. Is the principal's perception of the factual role played by the English language supervisor in Jenin district public secondary schools affected by the principal's qualification?8. Is the principal's perception of the factual role played by the English language supervisor in Jenin district public secondary schools affected by the principal's experience?9. Is the principal's perception of the factual role played by the English language supervisor in Jenin district public secondary schools affected by the respondent's profession?The study sample consisted of the whole population of male and female English language teachers and the school principals of Jenin district public secondary schools for the scholastic year 1998/1999. The number of English language teachers who responded to the questionnaire was (70) and the number of school principals was (51).The researcher developed a questionnaire (based on Al-Heijawy; 1993) for the purpose of this study. The questionnaire consists of (58) items distributed on the following seven main supervisory domains:-1. Supervisory tasks,2. Supervisory practices,3. Supervisory objectives,4. Techniques, teaching aids and activities,5. Professional development,6. Communication and relation with the fellows and finally,7. Evaluation.There were two versions of the questionnaire; the Arabic one was directed to the principals and the English one was directed to the English language teachers.The validity of the instrument was established to each of the seven domains by referring it to a jury of professional educational experts. The reliability of the instrument was tested using Chronbach Alpha Formula which revealed that the instrument reliability ranged between 0.71 and 0.88 for the supervisory domains and the reliability of the total domain was 0.94 for teachers and 0.95 for the principals. This was considered sufficient for the purposes of this study.In answering the questions of the study, the means, standard deviations and percentages of the responses were calculated and analyzed.The study finding indicate:1. The English language teachers ranked the role level of the English language supervisor as "middle" on all the domains and on the total domain as well. However there were differences within the teachers' perceptions as follows:a- differences due to gender in favour of the female teachers.b- differences due to qualification in favour of the holders of B. A. ( or a higher) qualification.c- differences due to experience in favour of teachers of ten years experience or more.2. The school principals' perceptions of the English language supervisors role were slightly better than those of the teachers in the sense that the role level of the supervisor was ranked by them as "good" on the total domain and on two of the seven supervisory domains. Similarly, there were differences within their perceptions due to their gender in favour of the females, due to qualification in favour of the holders of B. A. (or a lower) qualification, and finally due to experience in favour of principals with less than (10) years experience.Based on these results, the study recommends: -- Seminars and workshops should be arranged for and attended by the English language teachers, principals and English language supervisors to discuss the teachers' and principals' supervisory needs and their remarks on the supervisor's performance.- The Palestinian Ministry of Education is invited to increase the number of English language supervisors in each directorate of education, start pre-service training and condense and upgrade the in-service training programs for the supervisors so as to prepare them well to cope with the serious demands of their career.- Other studies are recommended in order to: -a- specifically determine the factors behind the low level satisfaction of English language teachers with the role of the English language supervisor.b- find out if English language teachers in other directorates of education in Palestine have similar perceptions.c- Investigate the English language teachers' perceptions of the desired role of the English language supervisor.

Abdelnour bdelnour Abdelrahim, عبدالله عبدالرحمن صديق‎

كلية الزراعة-جامعة الخرطوم · السودان

Evaluation of Furrow Basin Irrigation