A transplanting manipulator and a conveyance device were devised to address the problems with current sweet potato transplanters, which cannot properly finish boat-bottom-shaped have high seedling damage rate. The ground wheel transmits power two devices in specific transmission ratio ensure their synchronous movement avoid accumulated deviations. We selected manipulator’s parameter combination...

In this research, the influence of bolt preload on the fatigue strength of 2024-T3 aluminium alloy double lap bolted joints has been studied experimentally and numerically. To do so, three sets of the specimens were prepared and each of them subjected to tightening torque of 1,2.5 and 5 N-m and then fatigue tests were conducted under various cyclic axial load levels. In the numerical method, th...

The objective of this research is to investigate an on-machine estimation method achieve efficient and fast the fixturing force workpiece deformation. enables us visualize workholding states improves machining accuracies thin-walled parts. In research, a systematic which combines simulation locally measured strain proposed evaluated. evaluated in different conditions (clamping sequences forces)...

Since its invention in the 1990s single-molecule force spectroscopy has been increasingly applied to study protein (un-)folding, cell adhesion, and ligand–receptor interactions. In most force spectroscopy studies, the cantilever of an atomic force microscope (AFM) is separated from a surface at a constant velocity, thus applying an increasing force to folded bio-molecules or bio-molecular bonds...

OBJECTIVES For very preterm births, to compare alternative policies for umbilical cord clamping and immediate neonatal care. DESIGN Parallel group randomised (1:1) trial, using sealed opaque numbered envelopes. SETTING Eight UK tertiary maternity units. PARTICIPANTS 261 women expected to have a live birth before 32 weeks, and their 276 babies. INTERVENTIONS Cord clamping after at least ...

The power transformer is a key device in the grid systems. mechanical degradation of windings represented by clamping force looseness will cause decline short circuit withstand ability, and further damages. This paper proposes diagnosis method for operating based on study vibration response. In theory part, influence load current natural frequency discussed, change steady-state response studied...

This paper proposes a multi-terminal adaptive collaborative operation method for solving the problem of unstable internal force tracking in clamping and handling unknown objects by robots. In proposed method, command changes complex control into an from multi-slave to master. Moreover, we develop algorithm setups estimate object stiffness motion uncertainty direction according Lyapunov theory. ...

This research aims to design injection molding unit construction for combined spoon and fork products that are in accordance with industrial standards. The mold designed consists of two kinds layouts, namely grid layout radial layout, the product will be used is LKM AI 4050 moldbase standard 6065 standard. optimum uses a block runner system dimensions 400 x 500 mm which have clamping force 1,58...