In this paper, an analytical model for cutting process of a plate of material with a pair of scissors is presented. The cutting model predicts that, during task, force/torque responses of the scissors depend on the toughness and geometry of the plate. A force/position control law for a pair of scissors in contact with a partially known environment is proposed. The environment is a rigid plate o...

Ants of the tribe Attini are characterized by their obligate cultivation of symbiotic fungi. In addition to the complex chemical communication system of ants in general, substrate selection and fungus cultivation pose high demands on the olfactory system of the Attini. Indeed, behavioral studies have shown a rich diversity of olfactory-guided behaviors and tremendous odor sensitivity has been d...

Manufacturing technologies are becoming continuously more diversified over the years. The increasing use of robots for various applications such as assembling, painting, welding has also affected the field of machining. Machining robots can deal with larger workspaces than conventional machine-tools at a lower cost and thus represent a very promising alternative for machining applications. Furt...

The forces experienced while surgically cutting anatomical tissues from a sheep and two rats were investigated for three scissor types. Data were collected in situ using instrumented Mayo, Metzenbaum, and Iris scissors immediately after death to minimize post-mortem effects. The force-position relationship, the frequency components present in the signal, the significance of the cutting rate, as...

The forces experienced while surgically cutting anatomical tissues from a sheep and two rats were investigated for three scissor types. Data were collected in situ using instrumented Mayo, Metzenbaum, and Iris scissors immediately after death to minimize postmortem effects. The force-position relationship, the frequency components present in the signal, the signiŽcance of the cutting rate, and ...

Bio -material cutting, such as meat deboning, is one of the most common operations in the food processing industry. It is also the largest employer of people in the United States. These tasks are currently manual processes with only limited use of fixed automation. The main difficulty in this task is the natural variability of the product's size and individual anatomy. The industry is looking t...

ABSTRACT: Yam is a tuber vegetable crop with vegetative propagation. The low yielding due to the difficulty of obtaining quality material for propagation and high cost acquisition. cutting technique new alternative yam. present studyevaluated production minitubers yam through cuttings, follow formational growth minitubers. Different types obtained from three positions on shoots, substrates were...

Molecular dynamics simulation (MDS) was carried out using two types of interatomic potential function (a modified version of the Tersoff potential and an analytical bond order potential (ABOP)) to acquire an in-depth understanding of the material flow behaviour of single crystal silicon during nanometric cutting on three principal crystallographic planes and at different cutting temperatures. T...

This paper deals with a new scheme for automatic segmentation of unconstrained handwritten connected numerals. The scheme is mainly based on features obtained from a new concept based on water reservoir. A reservoir is a metaphor to illustrate the region where numerals touch. Reservoir is obtained by considering accumulation of water poured from the top or from the bottom of the numerals. At fi...

AIastradTechniques for vegetative propagation of 10-year-old blue SP.'Uce (Picea pungens EngeJm.) by stem cuttings were investigated. Month of collection of the cuttings and application of rooting hormones were examined. In addition, cutting position, cutting length and caliper were examined in relation to rooting response. December was the best collection date for rooting and root production. ...