Discrete element modelling (DEM) is a numerical method for examining the dynamic behavior of granular media. In order to build an accurate simulation model and provide more comprehensive soil characteristic parameters design optimization various contact machinery, in this paper, discrete (EDEM) combined with experimental approach used investigate East Asia. study, Hertze-Mindlin (no slip) was as particle by taking JKR (Johnson-Kendall-Roberts) surface energy determinants, repose angle,...

Addressing the issues of low harvesting efficiency and high losses in current pod pepper harvesters, this study presents design a bionic comb finger picking device an inclined double-spiral bell harvester to improve harvest rate reduce loss rate. Through utilization discrete element simulation software EDEM, model for peppers is established. Additionally, platform ground drop during developed, enabling exploration movement trajectory velocity changes elements. The also conducts analysis on...

Abstract With the development of large-scale livestock farming, manure pollution has drawn much attention. Conversion by insects is a rapid and cost-effective new method for management. Swine conversion with maggots ( Musca domestica larvae) developed, harvested are often used as animal feed. However, flow heavy metals from to downstream processes cannot be ignored, therefore, metal content was measured in untreated raw manure, maggot-treated maggot-eating chickens (chest muscle liver)...

The inherent complexity of cellulose, hemicellulose, and lignin contributes to the recalcitrance lignocellulosic biomass, resulting in a low conversion efficiency high cost bioethanol conversion. Pretreatment methods that disrupt plant cell structure lignocellulose, such as straw, can significantly enhance efficiency. In this study, we utilized an acid-assisted mechanocatalytic depolymerization technique pretreat rice results demonstrated significant disruption cellulose straw. Compared...

The effect of Ga ion irradiation intensity on the surface multilayer graphene was examined. Using Raman spectroscopy, we determined that caused defects in crystal structure graphene. density increased with increase dwell times. Furthermore, strain induced by changed crystallite size and distance between defects. These had doping increasing its work function. function using contact potential difference measurements. morphology following as atomic force microscopy. Additionally, adhesion...

Due to the advantages of hole forming and transplanting at same time, even on a film-covered field ridge, cup-hanging transplanter has become one most widely used transplanters in agricultural operations. The planter is main operating part transplanter. Different shapes hanging cup can affect soil action mechanism, cavitation performance, planting quality. In this study, discrete element simulation software EDEM multi-body system dynamics analysis RecurDyn are carry out coupling analysis....

The webbed foot structure of mallards (Anas platyrhynchos) exhibits effective anti-subsidence properties when walking on soft ground. To investigate the effects quartz sand particle size and thickness joint angles movement patterns feet, we created a testing substrate with utilized high-speed cameras kinematic analysis tools for data acquisition. Mallards mainly adjusted tarsometatarso-phalangeal (TMTPJ) during touch-down lift-off stages in response to increasing or enhanced ground...

Conversion of the lignocellulosic biomass to bioethanol contributes reduction greenhouse gas emissions, enhancement energy security, utilization waste materials, and promotion sustainable agricultural practices. In this study, we report effect combining ball milling followed by liquid hot water (LHW) pretreatment corn stover lower amount enzyme required while also greatly increasing recovery xylose in fermentable form compared either alone. Short-duration for 60 min reduces particle size...

Highlights A discrete element simulation model was used to improve the performance of a corn silage crushing and throwing device. Feed rate, speed, dial speed were as test factors, average cutting force energy loss evaluation indexes in orthogonal testing. The order significance factors > feed rate for loss. Abstract . To device address problems low quality high power consumption, granular straw established based on theory using EDEM, general-purpose CAE software program designed with...

The present work investigates the properties of self-made magnetic filler from plastic waste bottle and explores a new technology approach resource utilization. was prepared by air plasma modification loading ferrite on strip bottle. surface were characterized Atomic Force Microscope (AFM), contact angle system Fourier Transform Infrared (FTIR). AFM images original modified showed that low-temperature treatment markedly increased roughness strip. mean (Ra) rose 1.116 to 5.024 nm. FTIR...

Abstract To solve the inspection problems in cotton storage, as well need for environmental monitoring process of modern bale an intelligent and temperature humidity system based on RFID was developed by adopting (Radio Frequency Identification) technology, wireless real-time technology handheld terminal technology. The composed positioning module transmission module. artificial neural network (ANN) particle swarm optimization (PSO) algorithm used to data Gaussian filtering, accurate...

Due to the increasing concern with environmental safety and recyclability, natural fiber-reinforced composites have attracted more attention. In present work, braking composite samples without wet granulation were fabricated their physical, mechanical, properties investigated systematically. The experimental results showed that use of technology did not improve significantly water absorption impact strength but considerably improved density performance in comparison sample granulation,...

Leading agricultural enterprises attracting farmers to participate in vertical collaboration within the industry chain can expedite process of industrialization and help achieve rural revitalization. This study focuses on table grape growers Yangtze River Delta region China as research subjects. Instead examining impact specific elements individually farmers’ involvement chain, this emphasizes combination multiple factors influencing engagement. Employing a fuzzy-set qualitative comparative...

This study utilized the mallard’s foot as subject, examining bone distribution via computed tomography (CT) and analyzing pertinent parameters of tarsometatarsal bones. Additionally, gross anatomy methods were employed to elucidate characteristics toes webbing bio-structures their material composition. Biologically, comprises bones 10 phalanges, enveloped by fascia, tendons, skin. Vernier calipers used measure bones, followed statistical analysis acquire structural data. Tendons, originating...

In traditional rehabilitation robot design, the dynamic system of rigid was used in each joint robot, which motor and reducer, etc as a drive unit. The design has greater impact load medical application because its deficiency soft elastic element. This not only makes damage to normal operation even may cause secondary patients. recent years, rope dive designed power systems by some researchers, but complex control difficulty instability. Therefore, it is necessary kind flexible overcome...

In response to the issue of high tomato yield, low efficiency in harvesting tomatoes grown greenhouses, and recognition accuracy nighttime robots, a design was developed robotic system created specifically for greenhouse harvesting. The robot employs vision YOLOv5+HSV fusion algorithm recognize locate tomatoes. It then transmits this information arm. By coordinating visual system, arm, end effector, lifting mechanism, accurately picks ripe subjected simulated field tests harvesting, both...