منابع مشابه
Shooting Type Polishing Machine
a rahalt-chromium (Co-Cr) alloy using a centrifugal shooting type polishing machine. In tha present work, we examined the effects of the texture of polishing particle and polishing time on the surface roughness of Co-Cr alloy cast specimens. Nine differcnt textures of polishing par'ticle were investigated wiLh respect to core material and paTticle abrasiveness: three (lifferent elastic body cer...
متن کاملAdaptable Five-Axis Polishing Machine Head
Introduction A growing demand on machining high precision aspherical and free-form optics derives from the continuous development of computer-assisted calculation and simulation methods and therefore improved possibilities of integrating numerous optical functions within one and the same lens or mirror. Applications include illustration as well as sophisticated illumination optics. State-of-the...
متن کاملCheap and Available State Machine Replication
This paper presents that, by combining on-demand instantiation and lazy recovery, we can reduce the cost of asynchronous state machine replication protocols, such as Paxos and UpRight, while maintaining their high availability. To reduce cost, we incorporate on-demand instantiation, which activates a subset of replicas first and activates backup ones when active ones fail. To solve its key limi...
متن کاملWear test of composite restorative materials by a polishing machine.
The wear resistance of microfilled and conventional composite resins, was examined, using two sizes of abrasive particles for polishing. The mechanical properties of the composite resins were also studied and evaluated in relation to wear. Conventional composites showed much lower wear resistance than the microfilled resins. The amalgam and human enamel abraded with 10ƒÊm SiC particles, had str...
متن کاملPolishing Machine Based on High-Pressure Water Jet
The design of high pressure water jet based polishing equipment and its fabrication conducted in this study is reported herein, together with some preliminary test results for assessing its applicability for HMA surface polishing. This study also provides preliminary findings concerning the test variables, such as the rotational speed, the water jet pressure, the abrasive agent used, and the im...
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ژورنال
عنوان ژورنال: Science
سال: 1916
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.43.1109.466