منابع مشابه
Utilization of Solid Wastes (waste Glass and Rubber Particles) as Aggregates in Concrete
Post-consumer glass represents a major component of solid waste. On the other hand, more than 100 million tons of coal combustion ash are generated in the U.S. annually, of which 60 million tons are fly ash. To deal with these problems, two new materials were developed: “glascrete” and “ashcrete.” They have the potential of being made almost entirely from recycled materials: crushed mix-color w...
متن کاملthe effect of the utilization of electronic dictionaries on depth and breadth of vocabulary knowledge: a case of iranian efl learners
مطالعه حاضر تلاشی است برای بررسی تأثیرات به کارگیری فرهنگ لغات ، یکی از مهمترین ابزارهای یادگیری واژگان درفراگیری زبان خارجی، بر روی دانش لغوی. دراین تحقیق فرهنگ های الکترونیکی در قیاس با فرهنگ های چاپی مورد بررسی قرارگرفته اند که آیا این فرهنگ ها تاثیرقابل توجهی بر روی دوبعد کمی و کیفی دانش لغوی یعنی عمق و گستره لغات می گذارند. همچنین مشخص گردیده است که آیا تفاوت قابل ملاحظه ای میان عمق و گستر...
15 صفحه اولA Study on the Effects of Waste Rubber Tire Dimensions on Fine-Grained Soil Behavior
Mashhad city is located on alluvial deposits where the expanded area of this city, especially the central and eastern areas surrounding Imam Reza holy shrine, are built on weak and fine-grained deposits. Therefore, the soil improvement would be inevitable due to construction of high-rise buildings such as hotels and commercial complexes in these areas, as well as restructuring old buildin...
متن کاملHospital Bed Utilization: Perceptions of Healthcare Practitioners from Northern India
Background and Objectives: Hospital bed utilization is influenced by various factors, which may be categorized into patient-related, physician-related, and administration-related issues. It could be argued that the causes of inappropriate hospital bed utilization would be perceived differently by the clinicians and the patients. Given the unique role of clinical practitioners in quality of car...
متن کاملUtilization of Alumina Waste and Silica Waste for Geopolymer Production
This research studies the utilization of alumina waste and silica waste for geopolymer production. Alumina waste was obtained from aluminium thermal metallurgy industry, silica waste was obtained from silicone recycle industry in Thailand. This present study aimed at investigating the basic physical and chemical properties of waste materials and also the optimal proportion in geopolymer product...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1907
ISSN: 0036-8733
DOI: 10.1038/scientificamerican06291907-26322asupp