Extralevator abdominoperineal resection performed in the prone position for low rectal cancer is a relatively safe approach with acceptable circumferential resection margin involvement, intraoperative perforations, and local recurrences. Reconstruction of the pelvic floor with biological mesh might lower the rate of perineal wound complications (see Video, Supplemental Digital Content 1, http://links.lww.com/DCR/A161).

No abstract

This paper presents an improved and easy-to-use battery dynamic model. The charge and the discharge dynamics of the battery model are validated experimentally with Ni-Mh batteries types. An interesting feature of this model is the simplicity to extract the dynamic model parameters from batteries datasheets. Finally, the battery model is simulated in the matlab simulation software .The results show that the model can accurately re-present the dynamic behavior of the battery.

Microstructure consisting of ferrite and bainite in low C-Mn steels with different manganese contents (0.75-1.49 mass %) can be formed by accelerated cooling. Microstructure observation reveals that the transformation products of 0.75%Mn and 1.06%Mn steel mainly consist of equiaxed ferrite and pearlite when hot finish deformation was processed at the temperature of 800°C, while the transformed products mainly contained irregular ferrite and upper bainite when finish rolling temperature (FRT) increases to 850°C or 900°C. However, a large amount bainite can also be attained in 1.49%Mn steel when FRT decreased to 800°C. The strength increases by about 100MPa with the increase of manganese content from 0.75% to 1.49%. The 1.06%Mn steel exhibits a superior strength-elongation combination by deforming at FRT of 850°C and then accelerated cooling at the cooling rate of about 40°C/s to coiling temperature in the range of 490~510°C.