Researchers from Los Alamos National Laboratory and the U.S. Air Force Academy have created a new device called the satellite Speedometer. Small and efficient, the new device is specifically designed to measure a spacecraft’s velocity while it…
Category: Engineering
-
500-year-old ‘exceptional’ ship skeleton unearthed in Barcelona
A remarkable Medieval ship has been unearthed in Barcelona, Spain, at a significant archaeological site, offering insights into the city’s rich maritime past.
The Barcelona Archaeology Service has announced a discovery of “special…
Continue Reading
-
15x faster fusion reactor analysis achieved with 99.9% calculation drop
Researchers in South Korea have achieved a fifteen-fold increase in the speed of predicting high-energy particle collisions within fusion reactors.
The breakthrough, led by researchers at the Ulsan National Institute of Science and…
Continue Reading
-
Bright and dark states create interference patterns
When two or more light waves interact with one another, they result in the formation of different interference patterns. British physicist Thomas Young first demonstrated and explained these patterns in the year 1801, with his famous double-slit…
Continue Reading
-
Design, synthesis and simulation of fractional-order element using MOS transistors as distributed resistive capacitive devices
This section describes the synthesis method to design a FOE composed of individual MOS structures. This method uses a MOS transistor model with distributed parameters and its admittance matrix description to calculate the input admittance of the…
Continue Reading
-
Study on the bending deformation properties of microcracked R-ECC road–bridge link slabs
An investigation of the sensitive influencing parameters (such as the slab thickness and the equivalent elasticity modulus of foundation) on the performance of the R-ECC road-bridge link slab was performed to obtain the design parameters for the…
Continue Reading
-
Investigating emission characteristics and combustion performance of a CRDI engine utilizing novel biodiesel derived from waste cooking oil and pentanol blends
Engine performance characteristics
Brake thermal efficiency
Brake Thermal Efficiency is the portion of the fuel’s heat contribution corresponding to a powerful engine’s braking capacity14. It evaluates how effectively an engine converts fuel…
Continue Reading
-
Multi-objective optimization design for accelerated degradation test based on game theory
To verify the feasibility and effectiveness of multi-objective optimization method for ADT based on game theory proposed in this work. This section presents a specific example to optimize the SSADT plan of a motorized spindle by using the…
Continue Reading
-
Graphene-PbS quantum dot hybrid photodetectors from 200 mm wafer scale processing
Device design and fabrication
The tandem GFET-QD photodetector device architecture was designed on the basis of graphene active regions covered with two different lead sulfide (PbS) QD layers as the light-sensitive absorber material. The devices…
Continue Reading
-
Synergistic effects of basalt fiber and volcanic pumice powder in high-strength geopolymer concrete
Impact of BF on the mechanical performance
The CS of HSGC with BFs at 3, 7, 28, and 56 days is presented in Fig. 7a. As shown, the samples containing BFs exhibit higher CS compared to the control mixture (GPV0) at all ages. Specifically, as the…
Continue Reading