Národní úložiště šedé literatury Nalezeno 175 záznamů.  začátekpředchozí173 - 175  přejít na záznam: Hledání trvalo 0.00 vteřin. 
Low-cost 3D printed device for fabrication of nanoESI tips by grinding
Přikryl, Jan ; Týčová, Anna ; Foret, František
The aim of this work was the development of a simple and low-cost device for nanospray tips fabrication. Although there are several ways of the tip preparation, grinding was chosen as the most suitable in this work. Inexpensive, flexible and reliable method of 3D printing was used for the device construction making it available for any research group with a 3D printer.
Reducing the Edge Chipping for Capillary End Face Grinding and Polishing
Hošek, Jan ; Studenovský, K.
This paper presents results of glass capillary end face grinding and polishing by approach that reduces the edge chipping. Brittle materials have natural tendency for edge chipping what leads to beveling the sharp edges. Not beveled sharp edges on glass capillary are important for special applications like surface tension measurement of small liquid samples. We use common grinding and polishing process for capillary end face machining modified with gradual decreasing of grinding load based on the relation of the critical chipping load. Achieved surface roughness is measured using atomic force microscopy (AFM). Capillary inner edge quality is checked both with optical microscopes and electron microscope too. We achieved a non-chipped capillary inner edge with radius down to 100 nm.
Reducing the Edge Chipping for Capillary End Face Grinding and Polishing
Hošek, Jan ; Studenovský, K.
This paper presents results of glass capillary end face grinding and polishing by approach that reduces the edge chipping. Brittle materials have natural tendency for edge chipping what leads to beveling the sharp edges. Not beveled sharp edges on glass capillary are important for special applications like surface tension measurement of small liquid samples. We use common grinding and polishing process for capillary end face machining modified with gradual decreasing of grinding load based on the relation of the critical chipping load. Achieved surface roughness is measured using atomic force microscopy (AFM). Capillary inner edge quality is checked both with optical microscopes and electron microscope too. We achieved a non-chipped capillary inner edge with radius down to 100 nm.

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