آلة التكسير التحفيزي في مصر
المنهج التحفيزي في ضوء السنة النبوية
The Islamic Shana in concerned with all aspects of life; the eduional aspect. in particular, has been given special attention. The Prophet Muhammad (peace be upon him). based on divine revelations from Allah, has set up an eduional approach that is considered as role model and represents various aspects; one of them is the motivation which is the main topic this research ....
Plastics recycling: Polystyrene
· Plastics are inexpensive, lightweight and durable materials, which can readily be moulded into a variety of products that find use in a wide range of appliions. As a consequence, the production of plastics has increased markedly over the last 60 years. However, current levels of their usage and disposal generate several environmental problems....