ان الهدف من هذا البحث هو تحليل كتاب الفيزياء للصف الخامس العلمي للمرحلة الاعدادية في ضوء معايير تصميم وانتاج الانفوجرافيك. ويتم التحقق من هدف البحث من خلال الاجابة عن الاسئلة الاتية: ما هي المعايير التي يمكن في ضوئها تقويم كتاب الفيزياءلصف الخامس العلمي؟ ما النسبة الواجب توافرها لمعايير تصميم وانتاج الانفوجرافيك في كتاب الفيزياء لصف الخامس العلمي؟ ما مدى توفر معايير تصميم وانتاج الانفوجرافيك في كتاب الفيزياء لصف الخامس العلمي؟ بناءً على نتائج واستنتاجات البحث اوصت الباحثة بـالاتي: ضرورة توظيف كل طاقات وخبرات المهتمين في حقل المناهج في اعداد مناهج عصرية تواكب التطورات العلمية الحاصلة في شتى مناحي العلم والمعرفة. الاهتمام بتكنلوجيا التعليم والتي يعد الانفوجرافيك اهم ادواتها وتوظيفها في تطوير كتاب الفيزياء والتي تعمل على تبسيط المفاهيم المعقدة الرسوم والاشكال والمخططات والصور المملة الى صور ورسومات مشوقة تثير اهتمام الطلبة. اشراك الاساتذة من ذوي اختصاص تكنلوجيا التعليم في لجان تأليف كتاب الفيزياء. الاهتمام بالإخراج الفني للرسوم والاشكال والمخططات والصور. اقامة دورات تدريبية للمدرسين حول تصميم وانتاج الانفوجرافيك لاستخدامها اثناء تدريسهم. تدريس موضوع تصميم وانتاج الانفوجرافيك بكل انواعه ضمن مواد كليات التربية وكليات التربية الاساسية.
This research involves design and simulation of GaussianFSK transmitter in UHF band using direct modulation of ΣΔ fractional-N synthesizer with the following specifications:
Frequency range (869.9– 900.4) MHz, data rate 150kbps, channel spacing (500 kHz), Switching time 1 µs, & phase noise @10 kHz = -85dBc.
New circuit techniques have been sought to allow increased integration of radio transmitters and receivers, along with new radio architectures that take advantage of such techniques. Characteristics such as low power operation, small size, and low cost have become the dominant design criteria by which these systems are judged.
A direct modulation by ΣΔ fractional-N synthesizer is proposed
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