منابع مشابه
Native Gun-Powder Injuries of the Eye
In the closing months of each 3'ear a number of cases of so called "gun-powder injury" to the eyes are met with in the South of India, lhese accidents occur mostly at the time of the feasts of Deepavali (DivaliJ and Kartilc which are commonly spoken of as "cracker feasts." Ihe appearance of an injured eye is most characteristic; it looks as if a number of fine grains of red pepper had been imbe...
متن کاملScaling Analysis of the Electromagnetic Powder Deposition Gun
The electromagnetic powder deposition (EPD) system employs high velocity gas flow to accelerate powder material to conditions required for high strength plating. The gas flow, however, is not continuous; rather it consists of bursts generated by an electromagnetic railgun and pulsed power system. Each gas burst is created by a high pressure plasma arc which fills a transverse section of the gun...
متن کاملA New Instrument for Measuring Pressures in a Gun.
Lewis has already pointed out that a theory of the kind outlined in this paper explains satisfactorily the facts which have led many chemists to assume polar valence. For example, the chlorine atom in chlor-acetic acid, because of the relatively large charge on its kernel, as compared for example with a carbon atom, tends to displace towards itself the electrons holding it to the carbon atom. T...
متن کاملArc Initiation for the Electromagnetic Powder Deposition Gun
The Electromagnetic Powder Deposition (EPD) process converts pulsed electrical energy into kinetic and thermal energy to accelerate and heat powder material to conditions suitable for bonding. A high pressure plasma armature is electromagnetically accelerated using a railgun. A supersonic pressure wave is created when the armature accelerates through and "snowplows" the ambient gas ahead of it....
متن کامل[Acoustic trauma generated by exposure to gun powder].
BACKGROUND Noise-induced hearing loss has increased due to factors such as industrialization. It is estimated that one third of the world's population suffers from some degree of hearing loss caused by exposure to high-intensity noise. Exposure to noise can cause disease of various ear structures, especially destruction of outer hair cells, causing varying degrees of hearing lossObjective: To d...
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ژورنال
عنوان ژورنال: Royal United Services Institution. Journal
سال: 1873
ISSN: 0035-9289
DOI: 10.1080/03071847309423536