Background. Middle-aged women are at risk of musculoskeletal disorders because of the decreased muscle mass and bone density caused by a decreased endocrine function. Objectives. This study investigated the effectiveness of a stabilization exercise using respiratory resistance on female patients in their 40s with low back pain. Methods. Forty-four female patients in their 40s with low back pa...

In this paper, vapor pressure for pure compounds is estimated using the Artificial Neural Networks and a simple Group Contribution Method (ANN–GCM). For model comprehensiveness, materials were chosen from various families. Most of materials are from 12 families. Vapor pressure data of 100 compounds is used to train, validate and test the ANN-GCM model. Va...

sandwich sheet rolling process is investigated using an analytical method (slab method) and a numerical method (finite element method). the horizontal stress distribution in the layers, the rolling pressure along the contact interface and the neutral point between the roll and the sheet are investigated. then the affects of the parameters such as the friction between the sheet and the roll, she...

an experimental study has been performed to investigate the flow physics of an under-expanded axisymmetric supersonic jet exhausting transversely from a flat plate into a subsonic compressible cross flow. the goal was to study the effects of boundary layer thickness ratio (δ/d) and the jet to free stream dynamic pressure ratio (j) on surface pressure. the resulting measurements distinctly show ...

Moderate increases of ureteral back pressure usually cause decreases of glomerular filtration rate and even greater decreases of sodium excretion. It has been assumed previously that increased ureteral back pressure does not enhance renal tubular sodium reabsorption directly and that the decreases of sodium excretion are caused by the decreases of glomerular filtration rate. In the experiments ...

Pressure control drilling technology through the precise control of the entire wellbore annular pressure profile, the bottom of the pressure can always maintain the safety density window, so as to achieve the purpose of safe operation. In the drilling process, the use of conventional drilling technology for drilling operations, easily lead to well, overflow and other drilling accidents. In this...

Although switched LANs are usually over-provisioned, their characteristics (short RTT, link speed mismatches) lead to increased burstiness, and thus to the occurrence of transient congestion. In order to fully utilize the potential of large switched LANs, a link layer back-pressure mechanism may be used to complement end-to-end flow control by handling the short term congestion. A simple such m...

In both plants and animals, the interplay between mechanical force generation and mechanical sensing plays a stabilizing role in many developmental processes. Uyttewaal et al. now demonstrate that cells in the Arabidopsis shoot apical meristem respond to local mechanical stresses by reorienting their growth, thereby guiding morphogenesis. Notably, the mechanism underlying such guidance is ampli...

Submerged arc welding is used widely in oil and gas industry construction for storage tanks, pressure vessels, shipbuilding and etc. One of the processes of submerged arc welding is back gouging operations. This paper presents a way to remove the back gouging operation from the submerged arc welding process. For this purpose, effects of submerged arc welding parameters onA516-70steel sample wer...

some experimental intervention. Although the most frequently used placebo is the 'sugar pill' in drug trials, placebos can be and have been used for all kinds of interventions, ranging from placebo ultrasound in the treatment of pressure ulcers and placebo surgery in the treatment of osteoarthritis to sham traction in the treatment of low back pain and placebo oestrogen implants in the preventi...