Results 41 to 50 of about 114,978 (293)

Growth, micro-structuring, spectroscopy, and optical gain in as-deposited $Al_2O_3:Er$ waveguides [PDF]

open access: yes, 2008
Deposition and micro-structuring of $Al_2O_3:Er$ layers with low background losses (0.11 dB/cm) and lifetimes up to 7 ms have been optimized for active devices.
Ay, F.   +9 more
core   +4 more sources

Vibration Propagation Characteristics of Micro-Milling Tools

open access: yesMachines, 2022
Micro-milling tools are usually used for the 3D precision processing of micro metal parts under ultra-high speed. However, due to the structural characteristics of small scale, variable cross-section, and weak stiffness, the vibration of micro-milling ...
Binghui Jia
doaj   +1 more source

Milling characteristics and distribution of phytic acid and zind in long-, medium- and short-grain rice [PDF]

open access: yes, 2008
Milling and polishing are important operations during the production of white rice. The degree of milling and polishing has a significant effect on the nutritional aspects of white rice, especially on minerals, due to a non-uniform distribution of ...
Hamer, R.J.   +4 more
core   +2 more sources

The Modelling and Analysis of Micro-Milling Forces for Fabricating Thin-Walled Micro-Parts Considering Machining Dynamics

open access: yesMachines, 2022
In the fabrication process of thin-walled micro-parts, both micro-cutting tools and thin-walled micro-parts have the characteristics of small size and low stiffness. Therefore, the regenerative chatter during the machining process cannot be ignored.
Peng Wang   +4 more
doaj   +1 more source

Research on the Milling Performance of Micro-Groove Ball End Mills for Titanium Alloys

open access: yesLubricants
Titanium alloys are widely used in various fields, but milling titanium alloy materials often leads to problems such as high milling forces, increased milling temperatures, and chip adhesion.
Shihong Zhang   +4 more
doaj   +1 more source

The impact of carbon materials on the hydrogen storage properties of light metal hydrides [PDF]

open access: yes, 2011
The safe and efficient storage of hydrogen is still one of the remaining challenges towards fuel cell powered cars. Metal hydrides are a promising class of materials as they allow the storage of large amounts of hydrogen in a small volume at room ...
Adelhelm, Philipp, De Jongh, Petra E.
core   +1 more source

Performance of laser assisted micro-milling (laμmill) of titanium alloy using micro ball end mill [PDF]

open access: yes, 2018
Laser assisted milling technique turns to be complicated and unpredictable when the machining size is scaled to micro level. Furthermore, less has been reported on the application of ball end mill in laser assisted micro milling.
Mohid, Zazuli
core  

Design of a five-axis ultra-precision micro-milling machine—UltraMill. Part 1: Holistic design approach, design considerations and specifications [PDF]

open access: yes, 2009
High-accuracy three-dimensional miniature components and microstructures are increasingly in demand in the sector of electro-optics, automotive, biotechnology, aerospace and information-technology industries.
B Denkena   +25 more
core   +1 more source

Is Young's Modulus a Critical Coating Property Determining Fouling‐Release Performance of Marine Coatings?

open access: yesAdvanced Engineering Materials, EarlyView.
The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal   +2 more
wiley   +1 more source

Study on In-Situ Tool Wear Detection during Micro End Milling Based on Machine Vision

open access: yesMicromachines, 2022
Most in situ tool wear monitoring methods during micro end milling rely on signals captured from the machining process to evaluate tool wear behavior; accurate positioning in the tool wear region and direct measurement of the level of wear are difficult ...
Xianghui Zhang   +6 more
doaj   +1 more source

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