The lifting Hele-Shaw cell flow is a variation of the celebrated radial viscous fingering problem for which the upper cell plate is lifted uniformly at a specified rate. This procedure causes the formation of intricate interfacial patterns. Most theoretical studies determine the total number of emerging fingers by maximizing the linear growth rate, but this generates discrepancies between theor...

The problem of lifting graph automorphisms along covering projections is considered in a purely combinatorial setting Because of certain natural ap plications and greater generality graphs are allowed to have semiedges This requires careful reexamination of the whole subject which leads to simpli ca tion and generalization of several known results For example Cayley graphs including those with ...

background: manual material handling is one of the major health and safety hazards in industry. this study aims to assess the lifting tasks, before and after intervention using niosh lifting equation and manual handling assessment charts (mac). methods: this interventional study was performed in 2011 in a tile manufacturing industry in hamadan, located in the west of iran. the prevalence of mus...

background: low back pain caused by work, ranked the second after cardiovascular diseases, are among the most common reasons of patients’ referral to the physicians in iran. this study aimed to determine the changes in back compressive force when measuring maximum acceptable weight of lift in iranian male students. methods: this experimental study was conducted in 2015 on 15 young male students...

BACKGROUND AND AIMS  Non-lifting large laterally spreading colorectal lesions (LSLs) are challenging to resect endoscopically and often necessitate surgery. A safe, simple technique to treat non-lifting LSLs endoscopically with robust long-term outcomes has not been described. METHODS  In this single-center prospective observational study of consecutive patients referred for endoscopic mucosa...

The medical image processing process is one of the most important areas of research in medical applications in digitized medical information. A medical images have a large sizes. Since the coming of digital medical information, the important challenge is to care for the conduction and requirements of huge data, including medical images. Compression is considered as one of the necessary algorith...

Explanations for the ineffectiveness of lifting training often focus on the nature of the workplace. However, the process through which workers select a lifting method may contain priorities based on energy expenditure, unique anthropometry, lifting experience, personality profile or other characteristics of the individual worker. This empirical investigation studied the lifting technique selec...