the purpose of this study was to investigate the effect of perceptual – motor experience on motor development quotient of fine and gross motor skills in infants. fifteen 5-8-month-old healthy infants participated randomly in this study and were divided homogenously into two groups (experimental and control) according to their age. experimental group had 36 training sessions, each session an hou...

The addition of solid foods to an infant's diet is required to provide adequate nutrition, as eventually an infant will be unable to consume a sufficient volume of breast milk to meet their nutritional needs. The timing of this important dietary change for infants born preterm (<37 weeks of gestation) should take into consideration their delayed early gross motor developmental progress, increas...

The presence of the erosive burning effect during operation a solid rocket motor (SRM) is one most important factors affecting proper motor. To solve effects operating process under burning, synthesis algorithm based on actual CT images proposed to combine Level-set (LS) method with minimum distance function (MDF) for simulation surface regression grain burning. Hamilton–Jacobi control equation...

Low-thrust long-burn-time solid rocket motors may be useful as propulsion for small, fast, uncrewed aerial vehicles. These require a slow-burning propellant that can operate at unusually low chamber pressures (0.3–2 MPa). Slow-burn propellants were developed using ammonium perchlorate oxidizer and the burn rate suppressant oxamide. By varying amount of oxamide (from 0 to 20%), rates from 4 (at ...

Historical fears of toxic fumes from motor vehicles and industrial sources, and anecdotal reports among ART scientists of diminished success rates associated with building renovations, have now been confirmed and expanded into a solid evidence base. The earliest peer-reviewed publication on such issues was by Cohen et al. (1997) and led to the development of various products designed specifical...

a trend of significant increase in municipal solid waste generation has been recorded worldwide. this has been found due to over population growth rate, industrialization, urbanization and economic growth. consumerism speed has been found very high covering around more then 50% of total population since last decade due to higher economic growth, which has ultimately resulted in increased solid ...

background: to determine whether using mechanical ventilation in neonatal intensive care unit (nicu) influences motor development of low birth weight (lbw) infants and to compare their motor development with normal birth weight (nbw) infants at the age of 8 to 12 months using peabody developmental motor scale 2 (pdms-2). methods: this cross sectional study was conducted on 70 lbw infants in two...

The efficiency, reliability, and safety of aircraft have been improved by substituting hydraulic mechanical systems with electric systems. Furthermore, in future aircraft, where fan-driving engines are partially replaced motors, solving the thermal management heat generation from motor-controlling power-devices will become a crucial problem. In this study, three-dimensional steady network analy...

The main aim of this paper is to control the speed of PMBLDC motor by implementing SVPWM technique in FPGA based Fuzzy controller.BLDC motors are electronically commutated. An electronic controller replaces the brush/commutators assembly of the brushed DC motor, which continually switches the phase to the windings to keep the motor turning. The controller performs similar timed power distributi...

In humans, the motor system can be activated by passive observation of actions or static pictures with implied action. The origin of this facilitation is of major interest to the field of motor control. Recently it has been shown that sensorimotor learning can reconfigure the motor system during action observation. Here we tested directly the hypothesis that motor resonance arises from sensorim...