A remarkable new study has recently overturned a commonly accepted notion regarding the durability of medical plastics, which has found that a typical hospital-acquired bacterium can actively degrade certain types of plastics used in patient…
Category: Engineering
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Trump’s bid to fly Qatari jet as Air Force One stirs security fears
A plan to transfer a Boeing 747-8 aircraft, worth about $400 million, from the Qatari Ministry of Defense to the United States Department of Defense for President Donald J Trump’s temporary use has received heavy criticism from legal experts,…
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World’s oldest wooden spears reveal Neanderthal horse-hunting skills
Hundreds of thousands of years ago, our ancestors hunted and survived in a different world.
At the Schöningen archaeological site in Germany, researchers unearthed well-preserved wooden spears among the oldest hunting weapons ever…
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China unveils sharpest ocean simulator with over half-mile resolution
Chinese scientists claim to have developed the world’s most advanced ocean simulation system, achieving a resolution of 0.6 miles (1 kilometer).
This breakthrough sets a new benchmark in global ocean modeling and defies ongoing…
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Augustus’ solar meridian functioning and the birth of the western leap year
The meridian remains, consisting of metal plates on the floor of the underground room, were measured by means of three different techniques, all supported by the network described above37,43,44.
a) direct total station survey
From the last traverse…
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A novel approach to cancer treatment planning using inverse sum indeg index of fuzzy graphs
The ISI is a relatively new topological index in crisp graph. It is used to study the structural properties of molecular graphs and networks. It is particularly useful in the field of chemistry, it gives properties of molecules. It also finds…
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Risk identification of coal and gas outburst based on improved CUOWGA weighting TOPSIS model
Improved CUOWGA method
The traditional CUOWGA operator minimizes decision-makers’ subjective biases during decision-making, thereby improving evaluation accuracy. However, it still has the drawback of subjective condition settings18. This paper…
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Study on the impact of engineering construction on environmental risk assessment in alpine canyon area: a case study of Chaya County, Xizang
Data source
The main data of the geographic information database of Chaya County used in this paper are shown in (Table 4).
Table 4 Geographical information database for the study area. Data preprocessing
Landsat 8 is the eighth satellite in the…
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Determination of vibration characteristic in automatic tapping operations based on artificial neural networks
Tapping is a cutting technique that produces a screw effect in solid materials by using a tap to cut a hole with a circular cross-section. A drill tap is a rotary cutting tool, usually with multiple points. It rotates at hundreds of revolutions…
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Unveiling the flexural strength of corroded prestressed self compacting concrete beams enhanced with M-sand and polypropylene fibres
Li, F. & Yuan, Y. Effects of corrosion on bond behavior between steel strand and concrete. Constr. Build. Mater. 38, 413–422. https://doi.org/10.1016/j.conbuildmat.2012.08.008 (2013).
Google…
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