منابع مشابه
Basic Water Treatment of Steam Boilers
In order to fully understand what a given boiler needs for treatment, a basic study of its supply water must be done first. Three types of impurities exist in all supplies and can cause a wide range of problems in boilers and kilns. These impurities are suspended solids, dissolved solids, and dissolved gasses. Water picks up the impurities from the ground it contacts and the air through which i...
متن کاملIndex of Warships and Formations
A13, 4 A-class, 4 Abdiel, 105, 160, 264, 269, 311, 374, 434 Aboukir, 100 Acasta, 256–7, 264, 302, 417, 475–7 Acasta (K) class, 17, 20, 31 Achates, 393–7, 428 Acheron, 263–5 Acheron (I) class, 16, 31, 99, 156, 238 Achilles, 150 Acorn (H) class, 16 Active, 150–1, 264, 270, 402–3, 413 Active class, 16–17, 26 Agincourt, 22, 74, 283, 289–91, 303, 323, 329–31, 338, 406, 426, 463 Ajax, 66, 326, 472 Al...
متن کاملتعیین توزیع دما در جداره لوله در دیگهای بخار از نوع water-tube
دیواره آبی غشایی به عنوان سطح جاذب حرارت ، برای تولید بخار، در اکثر دیگهای بخار لوله- آب ، مورد استفاده قرار می گیرد. این دیواره، باید در شرایط مختلف بهره برداری، بسیار قابل اطمینان و ایمن باشد. در رساله حاضر، تغییرات درجه حرارت ، توزیع دما و نحوهء انتقال حرارت هدایتی، در داخل جدارهء دیواره آبی دیگهای بخار لوله-آب ، مورد بررسی قرار گرفته است . شناخت رفتار حرارتی فلز و انتخاب نوع آن و نیز آگاهی ...
15 صفحه اولMotion and Seasickness of Fast Warships
In this paper the coupling between the sea, the ship and humans is studied. In previous researches mathematical models of fast ship’s motions have been determined. In the literature there are models of human sickness and models of the sea. This knowledge about seasickness, waves and ship motion has been gathered. Using this information it is possible to extract some criteria for the captain (ma...
متن کاملMotion and Seasickness of Fast Warships
In this paper the coupling between the sea, the ship and humans is studied. In previous researches mathematical models of fast ship’s motions have been determined. In the literature there are models of human sickness and models of the sea. This knowledge about seasickness, waves and ship motion has been gathered. Using this information it is possible to extract some criteria for the captain, ma...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1889
ISSN: 0036-8733
DOI: 10.1038/scientificamerican06081889-11194supp