In a rather serious turn of events for North Korea, a newly built 5,000-ton destroyer (or warship) was severely damaged at a launch event presided over by the country’s leader, Kim Jong Un.
The mishap was so serious that some parts of the…
Category: Engineering
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Russia arming fighters with nuclear missiles that fly at Mach 6
Russia is significantly increasing its nuclear capabilities with the deployment of new air-to-air nuclear missiles, expanding tactical nuclear forces in Belarus, and working on new strategic weapons.
This information comes from a US Defense…
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Tesla’s Optimus robot takes out trash, vacuums, cleans like a pro
A new viral video of Tesla’s Optimus humanoid shows the robot performing everyday chores like vacuuming and throwing out the trash.
Shared on May 20, 2025, by the Tesla Optimus X account on X, the clip highlights the robot’s ability to…
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Scientists develop new trick to trap ammonia from air, water
Researchers at the University of Tokyo have successfully used ‘artificial photosynthesis’ to produce ammonia using atmospheric nitrogen, water, and sunlight, much like how cyanobacteria synthesize the gas in a symbiotic association with…
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Trump formally accepts Qatar’s lavish jet amid security concerns
The Trump administration has formally accepted a luxurious Boeing 747 jetliner from the government of Qatar, drawing sharp criticism from lawmakers on both sides of the aisle. The U.S. Air Force has been directed to assess how quickly the plane,…
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A frequency and beamwidth reconfigurable antenna based on liquid crystal for 5G millimeter waves
Antenna structure design
Figure 1 illustrates the geometry and related parameters of the proposed antenna. The antenna features a 5-layer stacked structure with a total size of \(22\times 30\times 7.768\) \(\hbox {mm}^{3}\). The primary radiating…
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High resolution weld semantic defect detection algorithm based on integrated double U structure
Pressure vessels refer to a closed vessel that can withstand internal pressure and is widely used in manufacturing, aerospace, military industry and other industries. The welding quality of pressure vessels is directly related to production…
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Analysis and application of PPV vibration reduction technology in subgrade step blasting – a case study
Zou, Q. et al. Morphological evolution and flow conduction characteristics of fracture channels in fractured sandstone under Cyclic loading and unloading. Int. J. Min. Sci. Technol. 33 (12), 1527–1540.
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Predicting the insulating paper state of the power transformer based on XGBoost/LightGBM models
Heatmap
To gain a quantitative insight into the relationships between the different factors influencing the diagnosis of transformer faults, the correlation between all explanatory variables in the data set was calculated and plotted in the…
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Research on reliability evaluation method of anchor cable support system based on Wiener process
The failure of an anchor cable is a process characterized by a decline in function due to the accumulation of damage, which occurs gradually and continuously. The transition from a state of safe use to a failure state is not instantaneous;…
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