This work presents a comprehensive coupled thermal-hydro-mechanical model to explore the frost heave mechanism of concrete-lined canal under freeze–thaw environment. Unlike previous models that regard concrete as homogeneous material, this considers porous medium and effect pore structure, well water content, ice ice-water phase transition, on mechanical deformation canal. Firstly, based theori...

Chronic erosive dermatopathy (CED) is a disease of intensively farmed Murray cod in Australia that has been reported in association with the use of groundwater (mechanically extracted from shallow boreholes) supplies. CED results in focal ulceration of the skin overlying sensory canals of the head and flanks. Trials were conducted at an affected fish farm to study the development of the conditi...

Objective: Describe the clinical course and management of a labyrinthine cyst associated with a labyrinthine fistula arising in a longstanding cavity after a canal wall down mastoidectomy. Study Design: Case report. Setting: University Hospital, tertiary referral center. Patients, Intervention, and Results: A 71-year-old woman who underwent left radical mastoidectomy at age 7 was referred to ou...

The effects of paracentesis on the blood-aqueous barrier of cynomolgus monekeys were studied by light and electron microscopy. The following regions of the eye were examined: ciliary body, iris, Schlemm's canal, juxtacanalicular connective tissue, and trabecular meshwork. Prominent structural alterations were seen in the ciliary epithelium at the anterior portion of the pars plicata, but the ep...

natomy and physiology emorrhoids are vascular cushions within the anal caal, usually found in three main locations: left lateral, ight anterior, and right posterior portions. They lie beeath the epithelial lining of the anal canal and consist of irect arteriovenous communications, mainly between he terminal branches of the superior rectal and superior emorrhoidal arteries, and, to a lesser exte...

The joints between segmental rings can withstand a certain amount of bending moment as well as axial and shear forces. Generally, in the structural analysis of tunnel segmental lining, the joints can be modeled as elastic hinges or rotational springs, and their rigidity should be demonstrated in terms of the rigidity of the joints or their rotational stiffness. Therefore, the bending moment act...

this study was perfomed on twenty five teeth which showed radiographic lesions( 6mm over 25 mm). the teeth were arranged in seven different groups and root canal therapy ( by warm gutta-percha technique) as surgical intervention were performed at various time intervals. in this investigation, histologic studies of the periapical tissues begin shortly after elimination of the root canal system w...

The utilization of the lining type in pressure tunnels is highly dependent on the geological and hydraulic conditions. There are two types of lining, namely concrete and steel lining but steel lining is one of the most expensive arrangements. To decrease the length of steel lining in these tunnels, the concrete lining, which prevents water seepage from the surrounding rock mass, is the appropri...