“…In the calculations, the applied FEM element type was BEAM3D. Parameters applied to the model calculations were as follows: span l = 6 m, column height = 2 m, trellis column diameter = 0.1 m, modulus of elasticity for the trellis column 16 C = 1.22 × 10 10 N/m 2 (acacia wood), wire height = 1.3 m, wire diameter = 0.006 m, modulus of elasticity of the wire E = 0.21 × 10 12 N/m 2 , virtual wire density ρ = 2.9 × 10 5 kg/m 3 (calculated with specific mass of plant p = 8 kg/m), damping modulus λ = 354 N s/m, 14 wire stretcher force F = 300 N.…”
Section: Methodsmentioning
confidence: 99%
“…Figure 7.The measured acceleration values at the place of excitation (A) and at a distance of 0.52 m from that point (B). 14 …”
Section: Methodsmentioning
confidence: 99%
“…Location of the measuring elements 14. The a z acceleration-time functions at the excitation point and at a 0.50 m distance from this point yielded a harmonic stimulation of 1000 N amplitude and o ¼ 50.26 rad/s angular frequency acting at the middle of the span.…”
The trellis supports of plants significantly affect their mechanical properties. Because trellises are usually used in grape plantations, their mechanical properties were measured in these systems. Vibrational grape harvesting was simulated using a finite element method. The major component of the vibration system is primarily represented by an elastic wire, and the green plants act as a mass with damping properties. The harvester 'excitation' was assumed to be sinusoidal with defined parameters. The real acceleration was measured during operation. The measured and calculated results correlated well. The process of detaching the crops can be determined using the calculated tearing force. This method helps to determine the dimensions of the trellis system and characterise the harvester's operation.
“…In the calculations, the applied FEM element type was BEAM3D. Parameters applied to the model calculations were as follows: span l = 6 m, column height = 2 m, trellis column diameter = 0.1 m, modulus of elasticity for the trellis column 16 C = 1.22 × 10 10 N/m 2 (acacia wood), wire height = 1.3 m, wire diameter = 0.006 m, modulus of elasticity of the wire E = 0.21 × 10 12 N/m 2 , virtual wire density ρ = 2.9 × 10 5 kg/m 3 (calculated with specific mass of plant p = 8 kg/m), damping modulus λ = 354 N s/m, 14 wire stretcher force F = 300 N.…”
Section: Methodsmentioning
confidence: 99%
“…Figure 7.The measured acceleration values at the place of excitation (A) and at a distance of 0.52 m from that point (B). 14 …”
Section: Methodsmentioning
confidence: 99%
“…Location of the measuring elements 14. The a z acceleration-time functions at the excitation point and at a 0.50 m distance from this point yielded a harmonic stimulation of 1000 N amplitude and o ¼ 50.26 rad/s angular frequency acting at the middle of the span.…”
The trellis supports of plants significantly affect their mechanical properties. Because trellises are usually used in grape plantations, their mechanical properties were measured in these systems. Vibrational grape harvesting was simulated using a finite element method. The major component of the vibration system is primarily represented by an elastic wire, and the green plants act as a mass with damping properties. The harvester 'excitation' was assumed to be sinusoidal with defined parameters. The real acceleration was measured during operation. The measured and calculated results correlated well. The process of detaching the crops can be determined using the calculated tearing force. This method helps to determine the dimensions of the trellis system and characterise the harvester's operation.
“…103 A witness under 14 may only be confronted with the defendant or another witness, if the situation does not intimidate him, 104 so a child's confrontation is also, in Fenyvesi's words, 'an undesirable method in general.' 105 Even before the implementation, a relatively new general rule applied on any individual, being a victim or in any other position, under the age of 18 years or being blind, speech or hearing impaired, or mentally disabled. To all these persons, legal warnings shall be composed in a way so that they can understand it.…”
This paper scrutinizes various levels and aspects of Hungarian criminal law from the perspective of particularly vulnerable victims, with regard to recent EU legislation. After a short introduction, Section 2 presents and compares several notions. The following sections present protective measures and instruments of substantive and procedural criminal law as well as the key regulations of the adjoining administrative field. At the end, the questions if Hungarian legislation has fully implemented the relevant EU Directive, and what further steps should be taken are addressed.
“…And last, but not least, the use of trellises make easier the chemical plant protection and handling of plants (pruning, thinning, etc. ), ease the automation of irrigation and fertilization and enables the mechanization of harvesting [4,5,6,7]. Higher returns due to early production of high density apple orchards are breaking even in 6-7 years compared to 10-12 years for traditional plantations.…”
The aim of this project was to compare the effect of different trellises (slender spindle, V-system and an experimental Y shape trellises) on some quality parameters of fresh market `Regal Prince´ (Syn. Gala Must) apples, which were grafted on M.9 dwarfing rootstocks. It was found that the Y-shape trellis has grown the largest and most uniform size apples meanwhile the yield per hectare was similar to that of V system. The higher cover color coverage rate, which increases the selling price, the less firmness, the higher solid (sugar) content, the earliness are in favour of Y-shape trellis.
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