abstract   background: fractures of the tibia are important for their commonness and controversy in their management. both conservative and surgical techniques have been introduced in an effort to speed time to :::::union::::: while minimizing the occurrence of complications. standard treatment for low-energy tibial shaft fractures includes closed reduction and cast immobilization. the purpose ...

Being a critical factor affecting the motion accuracy of precision machine tools, structural thermal elongation ball screw unit is generally caused by comprehensive influence from heat generations screw-nut pair/bearings and time-varying ambient temperature. To resist 2 disturbances above to guarantee precisely original length shaft, an active coolant control strategy proposed in this paper. Th...

The Computer registration of physical and mechanical quantities gives a lot of possibilities of machine elements and mechanisms research. The advantages of well-organized computer laboratory both technical and methodological, namely: Registration and on-line observation of a number of processes with random speed; replacement of high-cost specialized laboratory equipment; mathematical data proce...

The angular velocity of the shaft a laboratory stand based on an internal combustion engine was measured. measurement results are presented in graphical form

This paper presents an expert spindle design system strategy which is based on the efficient utilization of past design experience, the laws of machine design, dynamics and metal cutting mechanics. The configuration of the spindle is decided from the specifications of the workpiece material, desired cutting conditions, and most common tools used on the machine tool. The spindle drive mechanism,...

This paper investigates the use of machine learning algorithms to label modifier-noun compounds with a semantic relation. The attributes used as input to the learning algorithms are the web frequencies for phrases containing the modifier, noun, and a prepositional joining term. We compare and evaluate different algorithms and different joining phrases on Nastase and Szpakowicz’s (2003) dataset ...

Results of an investigation on the application of STATCOM for damping subsynchronous resonance (SSR) in a multi-machine system is presented in this paper. For a multi-machine system which has a set of identical parallel turbine-generators or non-identical turbine-generators having torsional modes of the same frequency, generators may suffer from the same mode of torsional interaction correspond...

Motion control systems have grown in sophistication and precision. However the precision of an entire machine process, for example an assembly operation, involves factors beyond the movement of the controlled mechanism. The initial location of parts prior to handling is subject to a tolerance often much greater than the placement tolerance. The correct position of a part is relative to the fina...