Objective To refine the lycopene extraction from tomato powder with ionic liquid-microwave assistance, seeking a more efficient and cost-effective process that optimizes resource usage, lowers costs, boosts economic value of lycopene. Methods The study investigated effects various factors on yield researchers screened liquids constructed BP (Back Propagation) neural network model to optimize experimental data. This was further refined using genetic algorithm-neural approach determine optimal...

To address the inefficiency and instability of automatic transplanting machines, a dual-row seedling pick-up device its corresponding control system were developed. Existing end-effectors are primarily mechanically controlled, needles can easily cause damage to interior bowl. In order reduce inflicted by bowl, this paper conducted mechanical analysis end-effector. At same time, buffer optimization was on operation end-effector, flexible pneumatic end-effector for picking designed. The...

By quantitatively analyzing a group of college students' exhibition visual behaviors in VR environment, the study found that storytelling and design had significant effect on attracting attention. The experimental data supports importance personalized learning experience highlights role layout navigation optimization enhancing visiting experience. results show incorporating eye-tracking technology can effectively enhance educational provide valuable guidance for future halls.

The Cannabis Sativa L., a perennial dioecious herb renowned for its industrial applications, serves as the source of hemp. Cannabidiol (CBD), non-psychotropic compound derived from hemp, has garnered considerable interest due to promising therapeutic potential. extraction parameters CBD hemp were optimized using Box-Behnken design and response surface methodology (RSM). purification process involved characterizing penetration desorption profiles on HPD-100 resin. in vitro antibacterial...

Abstract. A multi-task robotic transplanting workcell for greenhouse seedlings was developed and evaluated. The mainly consists of a system, two conveyors, filling unit, control system. system having multi-grippers designed to automatically pick-up plant whole rows seedlings. conveyors were with the pallet-type double-row chain transmission which moves plug trays pots predefined working space multi-grippers. unit growing soil dibbling holes prior planting coordinates functionality...

Aim of study: The aim this study was to develop a riding-type fully automatic vegetable seedling transplanter enabling continuous transplanting work on 2 rows simultaneously with plug seedlings fed automatically.Material and methods: In design, the consists 4-wheel drive system, pick-up mechanism, feeding rotation discharging 2-row planting mechanisms, multi-source control unit. system is riding type well adapting slops. mechanism could extract several at time from tray cells conveyed by...

A doorframe-typed swing seedling pick-up device for automatic field transplanters was developed and evaluated in a laboratory. The device, consisting of path manipulator two grippers, can move the pins slowly to extract seedlings from tray cells return quickly point next extraction. constructed with creative design type-Ⅱ mechanism combination series. It consists an oscillating guide linkage grooved globoidal cam mechanism. gripper is pincette-type using penetrate into root mass dynamic...

To improve the seedling-picking efficiency of vegetable transplanter and reduce damage rate seedling pot, a reciprocating device driven by full air pressure was designed. In this paper, structure working principle pneumatic are introduced. Through mechanical analysis between claw parameters such as stroke driving force clamping cylinder were determined. According to action sequence mechanism, which is horizontally dispersed longitudinally conveyed, control scheme -dropping system formulated....

Precipitation prediction plays a crucial role in people’s daily lives, work, and social development. Especially the context of global climate variability, where extreme precipitation causes significant losses to property people worldwide, it is urgently necessary use deep learning algorithms based on radar echo extrapolation for short-term forecasting. However, there are inadequately addressed issues with methods learning, particularly when considering inherent meteorological characteristics...

The planting mechanism of existing transplanters cannot meet the agronomic requirements densely planted vegetables with multiple rows, small plant spacing, and row spacing. In order to solve this current problem, an eight-row duckbill driven by a motor cylinder was designed. According guidance design for transplanting vegetable seedlings, paper analyzes working principle mechanism, establishes its kinematic theoretical model, determines structural parameters driving device opening closing in...

In precision agriculture, after vegetable transplanters plant the seedlings, field management during seedling stage is necessary to optimize yield. Accurately identifying and extracting centerlines of crop rows crucial for achieving autonomous navigation robots. However, transplanted ridges often experience missing rows. Additionally, due limited computational resources agricultural robots, a more lightweight line fitting algorithm required. To address these issues, this study focuses on...

Highlights A multi-pin flexible pick-up gripper with a four-jaw chuck having four pins has been developed. The can effectively grasp, hold and release plug seedlings low damages to the plants root soil. Based on typical on-off control cylinder stroke position detection, system for timely response was designed automate process of picking up releasing seedlings. Abstract. seedling automatic transplanting developed evaluated. mainly consists parallel-type air fingers, fork frames, several...

Having the correct seeding rate for a unit area is vital to crop yields. In order assess desirable rate, number of discharged seeds needs be monitored in real-time. However, small seeds, miscounting during monitoring happens frequently when using conventional quantity sensors, which have wide light beam intervals. Thus, sensor, enables pass through steadily, was developed. Based on seed-shading time, seed-counting algorithm proposed. Moreover, key structure parameters proposed sensor were...

Low degree of transplanting automation will affect production efficiency and planting quality in vegetable cultivation. A new seedling pick-up device was designed constructed to reduce direct grasping damages seedlings improve efficiency. The consists an air jet loosening device, a flexible manipulator, parallel feeding multi-axis motion control system. Its working principle is use ejection assist roots from the tray cells, grasp their stems for extracting with finally transfer them delivery...

There are various types of fruits and vegetables that need to be planted on ridges. In order allow for seedlings with a certain row space seedling space, the ridge transplanter should able track along ridge. Therefore, an ultrasonic ridge-tracking method system were developed let accurately. The mainly contains limiter sliding window filtering algorithm fuzzy look-ahead distance decision model. was proposed filter abnormal measuring results avoid disoperation steering mechanism. Moreover,...

In order to obtain desirable crop yields, grain seeds need be sown at the optimal seed amount per hectare with uniform distribution in field. previous sowing processes, seeding rates are controlled by rotational speed of flute roller which significantly effects due disturbances, such as reduction seeds’ mass hopper and change working length roller. overcome above problem, we developed an adaptive control system based on flow rate sensor. The can monitor feedback actual rates. addition,...

In this study, a computational fluid dynamics approach based on solving the Reynolds-averaged Navier-Stokes equation and shear stress transport (SST) (Menter) k-ω turbulence model is used to solve rotor in ground effect. A discrete element method Hertz-Mindlin (no-slip) contact considering real physical properties collision motion distribution of sediment particles field. By coupling two approaches, dust cloud development ground-effect flow field helicopter with rectangular-tip slotted-tip...