The steel strip is an essential raw material in the machinery industry. Besides, surface defects of directly determine its performance. To achieve rapid and effective detection defects, a CP-YOLOv3-dense (classification priority YOLOv3 DenseNet) neural network was proposed present study. model used as basic network, implemented classification on images, then replaced two residual modules with dense modules. Therefore, can receive multi-layer convolution features output by connection block...

Temperature is considered to be an important indicator that affects the capacity of a lithium ion batteries. Therefore, it great significance study relationship between and temperature batteries with different anodes. In this study, single battery used as research object simulate environment during actual use power battery, conduct charge discharge comparison test for iron phosphate manganate cobalt oxide battery. characteristics three cathode materials at temperatures, optimal operating...

Rice, a staple food crop worldwide, is pivotal in agricultural productivity and public health. Automatic classification of typical rice pests diseases crucial for optimizing yield quality practical production. However, infrequent occurrences specific lead to uneven dataset samples similar early-stage symptoms, posing challenges effective identification methods. In this study, we employ four image enhancement techniques—flipping, modifying saturation, contrast, adding blur—to balance...

The variation of substrate concentration in anode chamber directly affects the power generation efficiency and decontamination performance microbial fuel cell (MFC). In this study, three concentrations swine wastewater with 800 mg/L, 1600 mg/L 2500 were selected as substrates, MFC response characteristics community investigated. results show that a is positively correlated output voltage chemical oxygen demand (COD) removal rate. diversity battery can be significantly affected when changes...

Polytetrafluoroethylene (PTFE) is polymerized by tetrafluoroethylene, which has high corrosion resistance, self-lubrication and temperature resistance. However, due to the large expansion coefficient, will gradually weaken intermolecular bonding force of PTFE, lead enhancement permeation absorption limitation application range fluoroplastics. In order improve performance modified polytetrafluoroethylene, filled carbon materials aramid fiber with different scales, prepared through compression...

Thermal defects of substation equipment have a great impact on the stability power systems. Temperature is crucial for thermal defect detection in infrared images. The traditional methods, which low efficiency and poor accuracy, record temperature images manually. In this study, method based using convolutional neural network (CNN) proposed. Firstly, improved pre-processing applied to reduce background information, region interest located according contour position hence improving quality...

The automatic classification of surface defects is significant to the steel strip inspection system. However, influenced by lack samples, it difficult improve accuracy. Herein, a novel dual‐stream neural network proposed, which composed two streams sample generation and training. Subsequently, numerous defect samples are generated for classifier pretraining, real classified transfer learning method. experiment results demonstrate that has highest accuracy 99.70% among state‐of‐the‐art...

In order to develop carbonyl iron-enhanced electromagnetic wave-absorbing composites, this paper utilizes two different morphologies of iron powder (CIP), spherical and flake-like, which are blended with aqueous polyurethane (PU) in three ratios prepare impregnating solutions. Polyester (PET) needle-punched nonwoven materials impregnated these solutions produce composites. First, parameters the CIP particle types, (SCIP) flake-like (FCIP), tested coaxial method, followed by calculation...

In the field of microwave-absorbing materials, functional powder has always been focus research. order to fabricate lightweight and flexible garment materials with function, current work was carried out. Firstly, general properties polyurethane (PU) matrix composites reinforced various powders were studied, carbon nanotubes (CNTs)/Fe3O4/PU film proven have best properties. Secondly, needle-punched polyester (PET) nonwoven fabrics in 1 mm-thickness impregnated into PU resin same composition...

Microbial fuel cells (MFCs) have emerged as a sustainable technology for wastewater treatment that has potential to recycle bioelectricity from livestock wastewater. The performance of MFCs is influenced by the synergistic effect anode material with nearby microorganisms. In this study, three identical double-chambered different carbon clothes using swine are established. optimization mechanism MFC analyzed characteristics, cell performance, and microbial community, respectively. results...

As an industrial solid waste, the original aluminum ash (OAA) will cause serious pollution to air and soil. How reuse OAA has been a research difficulty. Thus, method of preparing plasma spray powder using is proposed. The was hydrolyzed ball milled, flowability (OAASP) evaluated by angle repose. coating properties were determined via analyzing microstructure phase coating, effects parameters on investigated orthogonal experiment optimize parameters. results show that repose OAASP after...

Electromagnetic radiation can cause serious harm to the human body, such as rise in body temperature and decrease immune function. In this study, carbon nanotubes (CNTs)/Fe3O4 nonwovens were used prepare wearable flexible absorbing materials. First, single-layer structures prepared by hot rolling, dipping, film fabrication, respectively. Then, combined form multi-layer structures. By testing analyzing performance of various X-band frequency range, optimum combination scheme was found,...

By applying the orthogonal test, T6 heat treatment test of casting AlSi10MgMn alloy was carried out. Hardness, tensile strength, and elongation were selected as indicators for evaluating toughness alloy. Grey relational analysis used to comprehensively evaluate Based on multiple linear regression, prediction models hardness, elongation, grey correlation established. Through planning solving, optimal process parameters obtained. According results metallographic structure fracture SEM after...

This study aims to investigate the influences of carbon nanotubes (CNTs) and graphene flakes (GFs) on microwave absorption performance nonwovens. Nonwovens were modified with CNTs GFs through an impregnation method, creating a series samples different nanomaterial contents. Then was tested both sides in X-band (8.2~12.4 GHz) Ku-band (12~18 using arch method. The experimental results showed that GF-impregnated nonwovens superior CNT-impregnated nonwovens, overall better than X-band. At CNT...

Low temperature fluidity and oxidation stability are important indicators for the measurement of performance biodiesel, which currently two major issues in association with use biodiesel on diesel engines. In current work, actors affecting low such as adding reagents, changing blending ratio, were studied separately. Then, influencing factors comprehensively analyzed to simultaneously improve through adjusting proportion fatty acid methyl esters (FAMEs). The results show that cold improver...

Aluminum dross is produced in the process of industrial production and regeneration aluminum. Currently, main way to deal with aluminum stacking landfilling, which aggravates environmental pollution resource waste. In order find a green protection method for comprehensive utilization, was used as raw materials prepare sintered brick. Firstly, material ratio, molding pressure sintering were determined by single factor test orthogonal test, mechanism obvious change mechanical strength brick...