this paper investigates the factors affecting the organizational commitment of the khorasan razavi’s gas company’s staff in the central office of mashhad. the method of research was survey and the data was collected using a standard questionnaire. the population was consisted of 200 personnel and the sample included 66 individuals from the company’s staff which were selected though stratified s...

The effect of pressure on the hexagonal close-packed structure of titanium is investigated. The lattice parameters of the equilibrium structure were determined in terms of the Gibbs free energy using the Epitaxial Bain Path method. When this process was repeated for several pressures, the effect of pressure on the lattice parameters was revealed. The calculated lattice parameters were in good a...

This paper first reports the counter-clockwise pressure-temperature (P–T) path for Lützow–Holm Complex in East Antarctica. The metamorphic textures of kyanite-bearing pelitic gneisses from Tenmondai Rock including earlier spinel and ilmenite inclusions, geothermobarometric data, pseudosection modeling indicate that pressure increases prior to peak conditions at around 9 ± 0.5 kbar 770–820 °C, f...

Seal components made of flexible graphite have excellent resistance to temperature, while sealing high pressure fluids is unsatisfactory. The behavior rings characterized by the ratio contact axial pressure. FEA results show that lateral decreases roughly linearly along direction path, and coefficient increases with increasing We design a combined seal structure based on rings, extract two path...

Aluminum alloys are considered a lot in the automotive and aerospace industry because of their high strength to weight ratio. In this manuscript, the gas forming process of aluminum AA6063 tubes at high temperatures up to 500°C is investigated, through experimental and numerical tests. Therefore, an experimental setup is prepared and so, tube specimens are formed in a die with square cross sect...

Objective: Flexed posture students who had hyperkyphosis (HKP) and forward head posture (FHP) due to changes in the spine alignment leads to displacement of the center of pressure and increased postural sways which ultimately disrupts the distribution of foot pressure. Therefore, the aim of this study was to compare the effect of eight weeks of National Academy of Sports Medicine (NASM) and Sha...

Both highand medium-pressure granulites have been found as because of the absence of modal minerals. The combination of petrographic textures, mineral compositions, metamorphic reaction enclaves and boudins in tonalitic–trondhjemitic–granodioritic gneisses in the Hengshan Complex. Petrological evidence from these history, petrogenetic grids and thermobarometric data defines a nearrocks indicate...

[Purpose] The aim of this study was to evaluate postural control during two different movements of the Functional Movement Screen in patients with chronic ankle instability compared with healthy subjects. [Subjects] This study was a cross-sectional survey of 50 participants comprised of 25 chronic ankle instability patients and 25 healthy subjects. [Methods] All subjects were subjected to measu...

Lead halide perovskite has attracted intensive attention for pressure and strain detection. Principally, pressure-induced changes in the structure resistance of may bring great potential developing high-performance piezoresistive sensors. Herein, first time, we study structural hot carrier cooling process CsPbI3 under based on density functional theory time-dependent theory. The calculation res...

Abstract Backward erosion piping is driven by seepage forces acting on the soil grains at downstream end of path. A new device for laboratory testing backward progression was developed and tested. The consists a plexiglass prism which path has been predefined. equipped with an inflow consisting gravel separated from tested sand strainer. hydraulic gradient along pipe observed set piezometers pr...