KEYWORDS: Blood, Control systems, Switches, Computer programming, Resistance, Resistors, Communication engineering, Information science, Information technology, Telecommunications
In the automatic blood viscosity measurement system, the mechanical movements of moving parts are supported by stepmotors.
The step angle of step-motor can not meet the requirements of precise positioning of parts, so the introduction of
micro-stepping method is proposed to improve accuracy. At the same time, micro-stepping improves the running
performance of step-motor. In the system adopts A3977 which has decoder inner chip drives hybrid step-motor (twophase
four-shot). The most important feature of A3977 is that it integrates hardware micro-stepping inner chip, and the
mainly electrical structure is easy. The system adopts eighth step by A3977, and uses C8051 to control enable, direction
and step of step-motor.
In this article the appearance, characteristic, and substance of two-way feedback of the human body are given. If we adopt compound physical and chemical stimulation for negative feedback it may improve the therapeutic effect.
In this paper moire topography is applied to study the femoral articular facies of the knee of Primates. For compari son with each other of different families of Primates we suggest the comparative targets a y and the grade G of the moire contour fringes on two condyles of knee of Primates and comparative study of the articulation of knee between the Macaca assamensis M cellaud Presbytis phayrei Rhinopithecus roxellanae Hylobates concolor leucogenys Nycticebus concany Gorilla gorilla Anthropopithecus troglodytes Sirnia satyrus and human being are given. The results may be useful reference in the study of Biomechanics Zoology and Anthropology.
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