The process of equilibration of a colliding hard-disks system is studied in the framework of classical mechanic. The method consists of dividing the nonequi-librium system into the interacting subsystems; the evolution one of these subsystems is analyzed employing generalized Lagrange and Liouville equations. The subsystem-subsystem interaction force is considered as an evolution parameter. The...

We consider a nonstatistical, computationally fast experiment to identify important topological constraints in folding small globular proteins of about 100-200 amino acids. In this experiment, proteins are expanded mechanically along a path of steepest increase in the free space around residues. The pathways are often consistent with folding scenarios reported in kinetics experiments and most a...

Integrated design processes based on complete product models have turned out to be a key strategy to solve complex engineering problems. The vision behind these processes and models is a clear and straight-forward path from the first idea to the product ready for manufacturing. In this context mechatronic systems offer a specific challenge. They represent multidomain products by integrating mec...

Computer based consultants are systems that incorporate specialized bodies of knowledge and make this knowledge conveniently available to users who are not computer experts. This paper summarizes i n i t i a l progress on a computer based consultant project aimed at helping a novice mechanic work with electromechanical equipment. We describe some properties and abilities of consultants, and pre...

A common procedure in the treatment of cancer of colon, which has big incidence in occidental population, is the union of the two extremes of intestine after removing a tumor (see image 1). This procedure, called anastomosis can be done in two different ways:  With manual suture, where the surgeon sews with special yarn and needle the ends of the intestine in a complex and long procedure.  ...

Skeletal injury operations are in general of high complexity and require extreme accuracy. That is why it seems practical that prior to a surgical intervention a geometric and mechanic model is prepared, which can be used to simulate various operational solutions. We present here a computerized system, which we call MedEdit, that helps the surgeon to plan the operation and with the use of a Fin...

Squamous cell carcinoma of the scrotum is rare and to the best of our knowledge has never been reported from Nigeria. We report on a case thought to be occupation-related in a 42-year old Nigerian taxi driver who had previously been an automobile mechanic and later a long-haul truck driver. He presented with a stage D disease and only palliation was feasible.

Warts are benign epithelial neoplasms of the skin and mucosa resulting from human Papilloma virus (HPV) infection. They are a common dermatologic complaint, with an estimated incidence of 10% in children and young adults [1]. The treatment is challenging and there is no single therapy established as completely curative [2]. In this report we presented a case of successfully removed resistant pl...

The study focused on development and validation of evidenced-based test items as a means improving the skill assessment student in learning Service Station Mechanic work Petrol Engine Maintenance at technical college. adopted instrumentation design was carried out Ekiti Ondo states. population is 125 three (final year student) area. A101 developed utilized by study. instrument subjected to face...