With the advancement of surface technology, boundary slip in lubrication has become increasingly common. However, theoretical analysis in this area remains limited, necessitating further research to explore the impact...
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With the advancement of surface technology, boundary slip in lubrication has become increasingly common. However, theoretical analysis in this area remains limited, necessitating further research to explore the impact of boundary slip, particularly thermal slip induced by velocity slip in cases with obvious thermal rise. Additionally, investigating the influence of surface limiting shearing stress on boundary slip is a valuable area of study. This research extends the simple sliding finite line contact thermal elastohydrodynamic lubrication (EHL) model by incorporating velocity slip and thermal slip at boundaries. Firstly, linear slip is examined in three different conditions, and the impact of boundary slip on the lubrication state is analyzed. Building upon this, the study considers the effect of limiting shearing stress on boundary slip and develops a nonlinear slip model. The study conducts a thorough analysis of the influence of limiting shearing stress on the lubrication state in the contact area and reveals that friction reduction can be attained by introducing slip between the static surface and the lubricant. By investigating the impact of boundary slip and limiting shearing stress on thermal EHL under simple sliding conditions, this research puts forward a novel friction reduction approach based on the theory of boundary slip.
The environmental burden of tannery wastewater, characterized by high levels of total dissolved solids (TDS) and other contaminants, presents a significant challenge for sustainable water management. This study addres...
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Point spread function (PSF) engineering in an imaging system involves the introduction of additional optical components to efficiently encode object information. It typically relies on a well-established mapping relat...
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Over the past decades, integration of wireless sensor networks (WSNs) and computer vision (CV) technology has shown promising results in mitigating crop losses caused by wild animal attacks. Studies have demonstrated ...
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Over the past decades, integration of wireless sensor networks (WSNs) and computer vision (CV) technology has shown promising results in mitigating crop losses caused by wild animal attacks. Studies have demonstrated the effectiveness of these technologies in providing real-time monitoring and early detection of animal intrusions into agricultural fields. By deploying WSNs equipped with motion sensors and cameras, farmers can receive instant alerts when wild animals enter their fields, allowing for timely intervention to prevent crop damage. Furthermore, advancements in CV algorithms possess made possible to automatically detect and classify the animal species, facilitating targeted response strategies. For example, sophisticated image processing techniques can differentiate between harmless birds and destructive mammals, allowing farmers to focus their efforts on deterring the most damaging species. Field trials and pilot projects implementing WSN-CV systems have reported significant reductions in crop losses attributed to wild animal raids. By leveraging data collected through sensor networks and analyzed using computer vision algorithms, farmers can make informed decisions regarding pest and insect management strategies. This data-driven approach has led to more efficient utilization of resources, such as targeted application of insecticides and pesticides, resulting in both economic and environmental benefits. Moreover, the integration of WSN-CV technology has enabled the development of innovative deterrent systems that leverage artificial intelligence and automation. These systems can deploy non-lethal methods, such as sound or light-based repellents, to deter wild animals without causing harm to the environment or wildlife populations. Overall, the combination of wireless sensor networks and computer vision technology provides the promising resolution to the long-standing issue of wild animal-related losses in agriculture. By harnessing the power of data and a
The shear capacity of reinforced beam concrete was designed to resist the stirrup reinforcement, Vs, and by the concrete itself, Vc. Previous studies of geopolymer concrete show the mechanical properties of this propo...
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Natural fibres have attracted more attention compared with synthetic fibre because they exhibit several benefits over synthetic fibre, such as being cost-effective, readily available, and lightweight apart from offeri...
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Produced water (PW) is the main by-product of oil and gas extraction operations that can be reused. The concentration of ions in produced water is high, so to remove both dissolved minerals and petroleum compounds in ...
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Resistance spot welding (RSW) involved two or more sheets of metal that are welded together with or without filler materials. This paper discussed the optimization of RSW process parameters that were varied on galvani...
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The solid–liquid interface energy anisotropy of Zn alloys remains poorly understood. Recently, characteristic 14-arm dendritic growth has been observed using time-resolved X-ray computed tomography at SPring-8 during...
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In this work,a novel microwave absorbing material(MAM)made of a pseudo-binary of Sr_(2)TiMoO_(6)-Al_(2)O_(3)(STM)is proposed *** MAMs labeled as STM X(X=60,70,80 and 100,respectively),in which X is the initial weight ...
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In this work,a novel microwave absorbing material(MAM)made of a pseudo-binary of Sr_(2)TiMoO_(6)-Al_(2)O_(3)(STM)is proposed *** MAMs labeled as STM X(X=60,70,80 and 100,respectively),in which X is the initial weight percent of Sr_(2)TiMoO_(6),were synthesized using the solid-state reaction *** with STM100,some equilibrium phases,including SrTiO_(3),Mo,Sr_(8)(Al1_(2)O_(24))(MoO_(4))_(2)and a few undefined ones,are presented in the composites as evidenced by X-ray diffraction results and scanning electron microscopy due to the chemical reaction between Sr_(2)TiMoO_(6)and Al_(2)O_(3)*** conductance loss,heterogeneous interfaces between various equilibrium phases introduce interfacial polarization,which causes an enhancement of dissipation for the incident electromagnetic *** the synthesized samples,STM80 presents the best microwave absorbing *** has a minimum reflection loss(RLmin)of-26 dB and an effective absorbing bandwidth up to 2.7 GHz when the thickness is only 1 *** indicates that STM80 is a new type of microwave absorbing material with strong absorption and ultrathin thickness.
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