(3) C5-T1 roots'maximum tension scope was 250-500g, a significant correlation was found between maximum tension and initial cross-sectional area in C5- C7 roots. Furthermore C5- C7 roots maximum stress and strain were greater than that of C8- T1 roots.
Methods:The osteoblast-like MG-63 cells were stretched for 24 h with the strain of 1 000,2 000,3 000,4 000,6 000 and 8 000 μstrain respectivly by four-point-bend loading device,then the production of PGE_2 from the MG-63 cells was detected by radioimmunoassay.
The histology of the implanted tendon was similar to that of natural tendon. The breaking strength and maximum tensile force were 173.0±18.2N and 18.9±1.9MPa, reaching 57 4% and 51.9% of those of normal tendon respectively.
(2)For the tear of its area more than 2PD,located in multi quadrants and with stronger tensile force of vitreous-retinal traction,the operation success rate in scleral buckling group were 61 29%、62 50% and 58 62%,while in vitrectomy group,the operation success rate were 82 81%、86 67% and 90 2% respectively.
The interfacial tensions for model oil/deionized water and model oil/MDFF agent aqueous solution decrease respectively from 23.4 mN/m and 22.0 mN/m to 20.0 mN/m and 18.8 mN/m when asphaltene mass concentration rises from 0 to 1000 mg/L.
An antibiotic producing strain Streptomyces violaceusniger was isolated from soil sample, characterized and studied for antibacterial and antifungal activity profile.
However compounds 23-27 possess potent activity against Klebsiella pneumonia, a Gram-negative bacterial strain, compared to the standard drug used, ciprofloxacin.
A white-light interferometric fiber-optic sensing network based on the double-ring topology is demonstrated, which can be applied to the measurements of quasi-distributed strain and temperature in a smart structure.
Interface transferring mechanism and error modification of embedded FBG strain sensors
As the strain sensing element of a structural health monitoring, the study and the application of the fibre-optic bragg grating (FBG) have been widely accepted.
The effect of repeated microscopic bends of optical fibers on the transmitted flux in structures strained by a tensile force of up to 1 kN over a temperature range of 20 to 100°C has been investigated.
The methods employed are similar to usual static methods, and they are used to investigate deformation and fracture of perfect fcc crystals having different orientations with respect to the tensile force.
Laboratory tests were performed using a small tensile machine capable of monitoring tensile force and displacement.
We consider the plane and axisymmetric problems about the contact interaction between an elastic plate and an elastic half-space loaded at infinity by a uniform tensile force parallel to the half-space boundary.
It is shown that the fiber drawing process in the constant viscosity mode becomes more stable when the initial jet rate depends on the tensile force.
A thermodynamic compensation effect was disclosed: the surface tensions of all studied systems were almost equal at T≈ 340 K.
The dynamic and equilibrium surface tensions of aqueous dodecylamidoethyldimethylbenzylammonium chloride solutions of various concentrations at 16, 20, 25, 30, and 35°C are studied for the first time.
By means of maximal bubble pressure method, the dynamic surface tensions of aqueous octanoyl-N-methylglucamine (Mega-8) solutions at 25°C were measured.
Vitreous and amorphous silicon nanoparticles consisting of 500 atoms are investigated using the molecular dynamics method after a series of uniform tensions with a total tensile strain Δl/l ≈ 0.10 and subsequent relaxation.
As the number of tensions increases, the mean length of Si-Si bonds decreases in the vitreous nanoparticle and, by contrast, increases in the amorphous nanoparticle.