The research on driver fatigue detection is of great significance to improve driving safety. This paper proposes a real-time comprehensive algorithm based facial landmarks the accuracy, which detects driver’s status by using video sequences without equipping their bodies with other intelligent devices. A tasks-constrained deep convolutional network constructed detect face region 68 key points, can solve optimization problem caused different convergence speeds each task. According images, eye...

In the development of optical absorption technology, achieving ultra-wideband high structures that span from 200 nm ultraviolet C region to 5800 mid-infrared range has been a significant challenge in materials science. Previous studies have shown few absorbers can simultaneously achieve an rate above 0.900 and cover such vast spectral range. This study presents innovative seven-layer composite structure successfully addresses this long-standing technical issue. Through carefully designed...

Currently, flexible surfaces are becoming increasingly common in electronic devices.Electronic devices fabricated on substrates considered to have potential.Flexible supercapacitors a long cycle life, high power density, stability, and flexibility.In this study, supercapacitor was prepared using activated carbon doped with graphene integrated dye-sensitized solar cell (DSSC) fabricate an energy conversion/storage device.A baking method used make the powder, paste of powder deposited for use...

We propose a novel fuzzy control strategy for hybrid electric vehicles (HEVs) based on the feature selection genetic algorithm of multivariate data, which greatly shortens time optimal parameters traditional algorithm.Firstly, we take fuel consumption and emission an HEV as optimization index, develop method considering controller with high correlation objective function, in membership function parameter is optimized by algorithm.Finally, performances under New European Driving Cycle (NEDC)...

The scattering layer in the TiO 2 photoanode (PAs) of dye-sensitized solar cells (DSSCs) is doped with single-layer graphene (G), and DSSC prepared by doctor blade coating method. A small amount (0.0016 wt.%) a aqueous solution (G-AS) G-TiO paste was to make 2–20 wt.% G-AS deionized water (DIW). UV-Vis measurement results show that layers effectively improve visible light absorption intensity PAs increase current density (Jsc) from 13.84 mA/cm 16.20 . Electrochemical Impedance Spectroscopy...

In this study, the sol–gel method was used to prepare ZnO seed layer for synthesizing nanorods, and we would investigate effects of different Zn(CH 3 COO) 2 C 6 H[Formula: see text]N 4 concentrations on synthesized characteristics nanorods. First, gel dipped surface [Formula: text]-type text] wafer as a layer. Then, hydrothermal with precursors synthesize nanorods wafer. X-ray diffraction (XRD) pattern, focused ion beam-field emission scanning electron microscopy (FIB-FESEM)...

This study aims to create a composite supercapacitor prepared by using carbon electrodes blended with wood-derived activated and monolayer graphene. The was integrated into dye-sensitized solar cells (DSSCs) form comprehensive energy system. Such system combines the functions of conversion storage power supply systems wearable electronic devices. In this study, impact gel electrolytes investigated on performance long-term stability DSSCs supercapacitors characteristics results revealed that...

In this study, an ultra-wideband absorber spanning from UV-B to middle-IR was designed and analyzed using a novel structure. The multilayer metamaterial, arranged bottom top, consisted of Al metal layer, lower SiO2 graphite another thin Ti top layer. layer had 200 nm square cavity etched out, then nanopillar hollow outside were embedded. This specific arrangement chosen maximize the absorption properties across broad spectrum. spectrum thoroughly commercial finite element analysis software...

In this study, zinc nitrate (Zn(NO3)2), hexamethylenetetramine (C6H12N4), and sodium chloride (NaCl) were employed as precursor materials to synthesize ZnO nanorod arrays on two distinct types of substrates using the hydrothermal method. We investigated how different varying chlorine concentrations influence synthesis properties chlorine-doped arrays. Specifically, study aimed explore structural, morphological, optical synthesized The an indium tin oxide (ITO) substrate with a seed layer ITO...

In this study, TiO 2 nanoparticles at different weight ratios were added to composite coconutshell carbon and conductive black electrode material investigate their effects on the properties of a supercapacitor.Then, electrodes further treated by rapid thermal annealing (RTA) measured field emission scanning electron microscopy (FE-SEM), electronic data system (EDS) analysis, cyclic voltammetry (CV), chargedischarge photoluminescence (PL) tests diverse with doped without RTA.According results...

In this study, a loader drive axle digital model was built using 3D commercial software. On the basis of model, transmission efficiency main reducing gear, differential planetary mechanism, and wheel gear were studied. The functional relationship obtained, including multiple factors: mesh friction coefficient, power loss normal pressure angle, helix offset amount, speed ratio, characteristic parameters. This revealed influence law by ratio. research results showed that increased with...

We propose a novel Tsallis cross-entropy thresholding method based on the premise that local long-range correlations rather than global may exist among gray levels of pixels.The target and background image can be considered as two independent parts, their information integrity maximized by proposed method.Our experimental results show this obtain better segmentation minimum when considering segmenting images in which object have no obvious correlations.

The doctor blade coating method is used to prepare dye-sensitized solar cells (DSSCs) and dope the original titanium dioxide (TiO 2 , P25) photoanode (PA) with single-layer graphene (G), quantum dots (GQDs), gold (Au) nanoparticles in this research. results show that doping PAs G, GQDS, Au effectively increases short-circuit current density ([Formula: see text], conversion efficiency text]), decreases internal structure impedance text]) of DSSCs. [Formula: text] from 13.62 17.02, 15.22,...

In this study, ZnO nanowires (NWs) were synthesized by hydrothermal growth process under the assistant of external electric field. Hydrothermal method is a low temperature and low-cost for fabrication single crystalline nanostructures. The film on Si substrate was deposited first RF-sputter as seed layer. Zn(NO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> )· xmlns:xlink="http://www.w3.org/1999/xlink">6</sub> H...

This study explores the influence of molar ratio synthetic solution methylammonium iodide (MAI) and PbI 2 on perovskite solar cells. The complete crystals must be produced in a low-humidity environment. substrate is spin-coated adjusted MAPbI 3 synthesis annealed by using nitrogen furnace tube to form crystals. During crystallization , some remains, which improves efficiency cell. Therefore, we adjust concentration MAI find appropriate amount residual. We fix at 1 M from 0.8 1.4 M. ratios...

Owing to the importance of fuel economy and emission performance parallel hybrid electric vehicles (PHEVs), systems are a critical research topic in vehicle industry.However, previous has endeavored reflect real situation optimization objectives, which tends result low-quality solutions.To address this issue, novel multiobjective approach based on multi-objective slime mold algorithm (MOSMA) is used optimize power system PHEV.Then, with objectives reducing consumption, CO emission, sum HC...

In this study, we used a citrate reduction method and electrophoretic deposition (EPD) to prepare hybrid nanocrystalline TiO2/Au films applied it the photoelectrode of dye-sensitised solar cell. The cells were investigated by field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray analysis (EDX), diffraction (XRD), I-V characteristics electrochemical impedance spectroscopy (EIS) analyses. FE-SEM analysis, layers have porous structure that is advantageous in dye-loading...

In this study, we used secondary anodization to prepare open-end TiO 2 nanotube arrays and then transferred them fluorine-doped tin oxide (FTO) glass attached front-illuminated dye-sensitized solar cells (DSSCs).X-ray diffraction (XRD) patterns found that nanotubes form the anatase phase when annealing temperature is greater than 280 °C.The best for 450 °C.From field-emission scanning electron microscopy (FE-SEM) analysis, lengths of were 15, 21, 28 μm anodized 2, 3, 4 h, respectively.The...