The rapid, stable, and undamaged picking of small-sized spherical fruits are one the key technologies to improve level intelligent robots reduce grading operations. Cherry tomatoes were selected as research object in this work. Picking strategies two-stage “Holding-Rotating” finger-end grasping determined. end-effector was designed separate fruit from stalk based on linear motion constraint par...

This controlled study compared the strength and porosity of 48 polymethylmethacrylate cement-implant constructs prepared with open bowl versus vacuum mix technique. Forty-eight blast finished stainless steel rods of 13 mm diameter were implanted with centralizers into 17-mm inner diameter tubes that had been retrograde filled with polymethylmethacrylate cement. The eight cement preparations use...

A bowl-shaped nitrogen-doped nanographene composed of a pyrrolo[3,2-b]pyrrole core substituted with six arene rings circularly bonded one another undergoes bowl-to-bowl inversion low barrier. This resembles that an umbrella flipped by the strong wind. The transition state is not planar, but possesses rather twisted, S-shaped conformation Ci symmetry. bowl-inversion mechanism follows quadruple-w...

Fruit detection is crucial for yield estimation and fruit picking system performance. Many state-of-the-art methods use convolutional neural networks (CNNs). This paper presents the results peach by applying a faster R-CNN framework in images captured from an outdoor orchard. Although this method has been used other studies to detect fruits, there no research on peaches. Since colors, sizes, sh...

the shear strength and shear energy per unit area, as well as the force and energy required for picking flowers, are important parameters in the design and development of harvesting mechanisms. in this study, shear strength and shear energy per unit area of saffron (crocus sativus l.) stems were determined at different bevel angles and shear velocities. the force and energy required for picking...

Bowl-in-bowl stacking of buckybowls on a copper surface is observed via scanning tunneling microscopy (STM) at low temperatures and characterized by density functional theory (DFT) calculations.

The synthesis and characterization of two direct platinum (1 and 6a/b) and three ethynyl-platinum corannulene derivatives (2, 8 and 9), bearing 2, 4, or 5 square planar platinum centers, are presented. The structure of the bowl bearing substituents remains comparable to corannulene and the dynamic behavior of the bowl inversion as assessed by VT NMR supports a persistent bowl structure in solut...

Recently, the minimum number of reticulation events that is required to simultaneously embed a collection P of rooted binary phylogenetic trees into a so-called temporal network has been characterized in terms of cherry-picking sequences. Such a sequence is a particular ordering on the leaves of the trees in P. However, it is well-known that not all collections of phylogenetic trees have a cher...

In the system of mechanized process cultivation fruit crops, harvesting is an important final stage, which requires development new, convenient, including those that do not damage fruit, automated technical devices. As a result series experiments, operability developed picking device was confirmed, it gently captures and reliably holds it. The operating modes for fruits have been established. f...