Material perception is one of the several essential abilities required by robots, and it also poses significant challenges in real-world field applications. In harsh environments, existing material recognition methods have problem low accuracy. this paper, ultrasonic technology applied to recognition, which derived from predatory strategy echolocation animals. We propose a novel noncontact meth...

The 6-axis external fixation mechanism with Gough-Stewart configuration has been widely applied to the correction of long bone deformities in orthopedics. Pose recognition is essential for trajectory planning correction, but usually implemented by surgeons’ experience, resulting a relatively low level accuracy. This paper proposes pose method based on novel image markers, and implements accurac...

The life expectancy of humans increases due to better medical care, food quality and personal hygiene. The demand for domestic robots performing (simple) household chores will increase as consequence to this trend. An important task of these robots is recognizing objects within an environment. Object models are constructed using multiple views from various viewpoints in order to increase the re...

The feature dimension and redundancy can reduce the face recognition speed and rate, the shading and light changing can heavily affect the face recognition effect. So the first key to face recognition is how to effectively extract face features because the face image contains a lot of redundant information. Multi-wavelet transform has symmetry, orthogonality, compact support and high vanishing ...

Event causality identification is an essential task for information extraction that has attracted growing attention. Early researchers were accustomed to combining the convolutional neural network or recurrent models with external causal knowledge, but these methods ignore importance of rich semantic representation event. The event more structured, so it abundant representation. We argue elemen...

Recent neuroimaging studies have successfully identified encoding mechanisms that support different forms of subsequent episodic recognition memory. In our everyday lives, however, much of our episodic memory retrieval is accomplished by means of free recall, i.e., retrieval without an external recognition cue. In this study, we used functional magnetic resonance imaging to investigate the enco...

the entanglement at zero-temperature is studied in a two-qubit xz spin-1/2 chain model in anexternal magnetic field which is applied in the z direction. we have obtained an analytical relation forthe effect of the external magnetic field on the concurrence. it is shown that the ground state of thesystem depends on the strength of exchange coupling. we have shown that the analytical relation oft...

the study compared economic efficiency among smallholder farmers who practiced low external input technology [leit] and high external input technology [heit] agriculture in a harsh macroeconomic environment typified by inadequate fertilizer subsidy in imo state, nigeria. cross sectional data generated from 160 smallholder farmers randomly selected from 2 out of the 3 agricultural zones in imo s...

the teratogenicity of cadmium exposure was studied in virgin nimri rats aged 10-13 weeks. pregnant animals were fed cadmium sulfate equivalent to doses of 1,4 and 7 mg/kg/day of cadmium by oral gavage on the day 7 of gestation. on the day 18 of gestation, fetuses were delivered and examined for external and skeletal malformations. total percent of malformed fetuses in rats treated by different ...