General formula for the efficiency of quantum-mechanical analog of the Carnot engine. Abe S. Entropy . 2013Abe S. General formula for the efficiency of quantum-mechanical analog of the Carnot engine. Entropy, 2013, 15: 1408–1415 ADS MathSciNet...
Gene expression programming and its values exactly predict output results and present precise formula. Moreover, the sensitivity analysis was performed to recognize the effectiveness of the factors for reducing NOx and increasing mechanical efficiency. In the sensitivity analysis, the methods such as ...
The formula implies that the thermodynamic efficiency of the ocean heat engine, far from being negligibly small as is commonly claimed, might in fact be as large as can be thanks to the stirring done by the wind and tides. These ideas are further illustrated by means of idealised numerical...
1.Verifying mechanical efficiency of the longitudinal gearing along the ship in navigating by the use of experimental method;航行中船舶纵向齿轮机构机械效率的实验验证 2.Synchronous detection technology for the surface mechanical efficiency of beam units抽油机地面机械效率同步检测技术研究与应用 3.In the ...
where ηE is the mechanical energy efficiency, Ee the effective rotary energy, and Er the actual rotary energy. The specific energy (SE) is the amount of rotary energy required to drill a unit volume of rock. It is calculated using the formula: (4.21)SE=ηEWN/DR where W is the weight...
vibration experiment, shown in Fig.3e, that the peak value of the acceleration signal has been attenuated by about\(80.0\%\)which demonstrated a high vibration isolation efficiency. On the other hand, it is observed from the frequency-domain spectrum, shown in Fig.3h,i, that the vibration ...
Therefore, this study selects possible working hours (PWH), vertical speed (VS), and horizontal speed (HS) as the direct calculation parameters for MCE calculation. Additionally, working efficiency (WE) and deconstruction period (DP) are selected as indirect impact parameters, following the ...
Black, An analytical method to predict efficiency of aircraft gearboxes, Journal of Mechanisms, Transmissions, and Automation in Design, 108 (3) (1986) 424–432. Article Google Scholar L. S. Langston, Gears steer new engine designs, Mechanical Engineering, 139 (9) (2017) 54–55. Article ...
A similar tunable-stiffness isolator is desired in the aero-engine pylon system to maintain the best performance and efficiency at different flight stages (Supplementary Fig. 21). Moreover, the fast-response gear-based metamaterial may give rise to a sensitive variable-stiffness skin, which has ...
Unlike traditional methods that use separate materials, multifunctional materials integrate functions, reducing the system size and weight for increased efficiency. However, creating ideal multifunctional materials that are lightweight yet strong, energy-absorbing, and effective in sound attenuation remains a...