منابع مشابه
War Gases in a Nutshell
By THE KERNEL HISTORY records numerous abortive attempts to utilize chemical substances as war weapons, but it is not within the scope of this article to go into such occurrences prior to the Great War, except to mention that with the exception of "Greek Fire," none of them produced important results nor challenged the supremacy of existing weapons. The first toxic gases used in the Great War w...
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Our aging population and the recall of the old to industry under the needs of war call increasingly for the physician's attention to the problems of aging. Instruction in this field must come to most practitioners through experience supplemented by the reading of relevant material such as is presented in this book. The appearance of a fourth edition of this volume within 25 years is testimony o...
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تحقیق حاضر متون خبری روزنامه های نیویورک تایمز و تهران تایمز را به صورت تحلیل انتقادی کلامی مورد بررسی قرارمی دهدکه درمورد جنگ به رهبری آ مریکا در افغانستان است. هدف از این تحقیق نشان دادن تاثیر ایدیولوژی و نگرشهای نویسندگان متون خبری است که ممکن است پنهان باشد. برای انجام این تحقیق 20 متن خبری) از هر روزنامه 10 متن خبری) به صورت تصادفی از سایت اینترنتی روزنامه های نیویورک تایمز و تهران تایمز ا...
15 صفحه اولthe effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
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ژورنال
عنوان ژورنال: Nature
سال: 1936
ISSN: 0028-0836,1476-4687
DOI: 10.1038/137256a0