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On May 6th, NUBURU, a leading enterprise in high-power and high brightness industrial blue laser technology, announced that the company has been awarded a second phase contract worth $850000 by the National Aeronautics and Space Administration (NASA) to promote blue laser power transmission technology as a unique solution that significantly reduces the size and weight of equipment required for lun...
Researchers from the New Materials Technology Research Institute of Beijing University of Science and Technology and the Beijing Modern Transportation Metal Materials and Processing Laboratory reported a review of high-throughput preparation of alloy composition design in additive manufacturing. The relevant research is titled "High throughput preparation for alloy composition design in additive m...
1. Research backgroundDirected energy deposition (DED), as an efficient and economical technology in the field of additive manufacturing (AM), is widely used in the manufacturing of metal materials. However, its high heating and cooling rates, as well as significant temperature gradients, often lead to rapid solidification, forming cross layer columnar grains and internal defects, seriously affect...
The most famous use of GPS satellites is to help people understand their location, whether it is driving cars, ships or planes, or hiking in remote areas. Another important but little-known use is to distribute information to other Earth observation satellites to help them accurately locate measurements of our planet.NASA and several other federal agencies, including the US Space Force, the US Spa...
The time/frequency unit is the most accurate among the seven basic units, so many measurement studies that pursue ultra-high accuracy and sensitivity will be transformed into frequency measurements to achieve higher measurement accuracy and sensitivity. For example, by measuring the relative changes in the ratio of different atomic transition frequencies, ultralight dark matter can be detected or ...