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Ability insufficiently in shear is one of common trouble of old RC (reinforced concrete) beams, so scientific and reasonable shear resistant reinforcement method is one of the important research topics in the old bridge reinforcement and rehabilitation fields, and is of great significance in improving old bridge’s mechanical properties and reducing safe accidents.
Both dead load level when strengthening and damage degree of original beams are the important factors influencing the shear resistant reinforcement effect , and with increasing of the dead load level and damage degree when strengthening, the improved amplitude of the yield load of stirrups and the shear bearing capacity are getting decreasing.
The influence of shear resistant strengthening is affected by load level, except of design parameter of original beams and the damage degree.
Table 2 The SWR’ Mechanical properties Wire type fpk (MPa) fpd (MPa) Ep (MPa) Galvanized soft wire 1644 1397 120000 Measuring point arrangement.
The dead load level when strengthening and damage degree affect directly the effect in shear with SWR external prestressing.

Taking chaotic sequences as the initial values of damp least square method, all the solutions of equations can be found quickly and making use of existing chaos system and discovering new chaos system to generate chaotic sequences with good properties is the key to the Chaos sequences-based damp least square method.
Use the existing chaotic system to find new chaotic system to produce excellent chaos sequence, at the same time, it is key to taking into account the solution of nonlinear equations required properties is based on the chaotic and hyper-chaotic sequence and its improved Newton iteration method or mathematical programming method.
Add damping to, attain re-Hei Chan iterative: (3) In the equation, is n-stage unit matix, is damping factor, the choice of Damping factor and the convergence criteria could be seen in paper [17].
[2] Wen F., Liang C.G,Liao Q.Z: China Mechanical Engineering, Vol.10,No.9(1999), p.1011-1013
,Yang T.L.: Chinese Mechanical Science and Tech.

Due to the increasing resistance to antifungal medications, an interest towards nanoparticles, especially silver, has been increasing due to their antimicrobial properties.
Nanoparticles of silver with their large surface area have shown profound antibacterial property through “pit” formation, which affects the membrane permeability and leads toalterations in the DNA of the microrganism [5].
However, the addition of any additive components in the PMMA resin can affect its structure and, hence, its mechanical properties.
Shibata et al.[24]explained that the addition of the other material can act as an impurities which reduce in degree of conversion of acrylic resin and increase in residual monomer which can result loss in mechanical properties.
Moreover, the bonding between inorganic substances and the acrylic resin are weak as they lack the chemical bonding.Furthermore, Sodager et al. [25]concluded that the type of the acrylic resin and the concentration of nanoparticles are the deciding factors for the effect of AgNPs on flexuralstrength of PMMA resin.

In addition to the effects of the complex material that lead to the corrosion in seawater, the corrosion is also affected by the ultraviolet radiation, temperature, wave erosion and other factors like so on[2].
Evaluation of material properties of filled cement mortar.Under the condition of cycle of freezing and thawing between -15℃ ~ 15℃ and alternation of drying and wetting, 17 kinds of filled cement mortar and the performance of sacrificial anode in the filling materials were tested.
The data can be used for analyzing the relationship of cathodic protection parameters of the splash zone, the surface state of steel, the integrity and the environmental factors.
(Results shown in Fig. 3 and Fig. 5) Fig. 2 Schematic diagram of simulation and monitoring probe arrangement Fig. 3 ECI-1 monitoring results: the variation of environmental factors and state parameters with time.
J., Influence of the level of cathodic protection on the corrosion fatigue properties of high-strength welded joints.

Introduction The knee joint is one of the most complex human joints taking into account the number of its components, their spatial geometry and their mechanical properties, the contacts between elements and the pressures acting on them.
The results show that misalignment could damage the articular cartilage because they increase the stress magnitude, that progressively produce articular cartilage damage and it enhances the osteoarthritis phenomenon due to mechanical factors.
We introduced an analysis setting called FKN ("Normal Stiffness Factor”), which is a normal multiplication factor used for the calculation code of contact stiffness, which helps the solution to be faster and reach convergence more easily.
Huiskes, The Role of Computational Models in the Search for the Mechanical Behavior and Damage Mechanisms of Articular Cartilage, Med.
Tarnita, Modeling and Finite Element Analysis of the Human Knee Joint Affected by Osteoarthritis, Key Engineering Materials, 601, (2014) 147-150

An ideal scaffold should mimic the morphology of the natural extracellular matrix and have good mechanical properties and biologically functional.
As a result, these scaffolds could hardly make up the deficiency, such as: difficult forming and lack mechanical properties of hydrophilic natural biological materials; the poor biocompatibility of synthetic biological materials.
The mechanical properties of electrospunning fiber mats are still poor, and it is difficult to expose cultured cells to the correct stress environment to produce tissues [6].
For further study, we would add cells and growth factors in the scaffolds by mixing in the polymer solution or electrospinning to get a scaffold with bio-functions.
The hierarchical scaffold formed by hybrid technique improved not only mechanical properties, but also the simulation of MSCs, such as cells attachment, proliferation and cells compactness in scaffold.

And researches show that because of the different structural property, there is great difference in mechanical property between structural soil and remolded loess with the same density and water content, which is obviously different from the critical soil mechanics.
Recent years, many tests of structural property of soil have been taken and proved that the structural characteristic has greater effected on the mechanical properties of soil[1].
(3) Structural is an important factor which affects soil strength together with pressure damage, hydrostatic pressure and shear damage.
Chinese Journal of Rock Mechanics and Engineering, 2006, 25(10): 2058-2064 [9] LIU E.L, SHEN Z J: Experimental study on mechanical properties of artificially structured soils [J].
Chinese Journal of Rock Mechanics and Engineering, 2000,19(6):775-779 [11] HU Z.Q, SHEN Z J: Deformation properties of structural loess [J].

Xie et al.[25] successfully prepared Ag/ZnO samples with properties up to the relevant standards by mechanical mixing method.
Comparing the effects on properties of Ag/ZnO(10.8) contacts prepared by mechanical mixing, spry co-deposition and mechanical alloying, P.B.
Nanotechnology modification can promote the super-refinement of grain and the homogenization of microstructure and improve the mechanical and electrical properties of Ag/ZnO material.
While preparing Ag/ZnO by powder metallurgy or pre-oxidation, the sintering process of powder particles will affect the density of the material, and then affect the processability and electrical properties.
Failure of Ag/ZnO Electrical Contact Material The reliability of electrical contacts aimed at making current is one of the important factors restricting the efficient and long-term use of electrical contact materials.

Autoclave curing is a common practice to manufacture high temperature thermoset matrix composites in order to improve the mechanical properties of the final product.
Indeed, their enhanced physical and mechanical properties, in conjunction with the development of competitive manufacturing processes and design for manufacturing criteria, made PMC very attractive in several applicative sectors.
They can be trained to perform a particular function by adjusting the values of weight factors between the neurons, either from the information of outside the network or by the neurons themselves in response to the input.
It was mentioned that the final properties mainly rely on temperature history.
Improving of the mechanical properties of this composite is related to optimization of the temperature-time curve.

Process parameters optimization with 4 5 levels orthogonal design method factors, the selected four factors are: the temperature, pressure and time and speed craft.
Orthogonal experiment with green pot process parameters for example, its test factors level see table 1.
Table 1 Pot filming process parameter optimization experiment factors level table Level temperature (℃) pressure (N) time (min) speed (N/min) 1 240 15 1.5 20 2 265 25 2 30 3 280 35 2.5 40 4 295 45 3 50 5 310 55 3.5 60 Test the technological process is: fresh leaves——booth put——green pot shot (pot 1) ——article daniel (pot 2) ——hui pot fai dry (pot 3) ——finished products.
The mechanical properties and tea performance evaluation Fry tea quality from it, according to the table 2 data analysis shows that the this paper developed automatic multiple flat tea tea craft machine, the color and shape of the manual craft level surpassing both color and taste are all up to the requirements of the manual craft, only aroma is insufficient, should be further improved.
From the mechanical properties, for automatic multi-function flat tea of small craft machine: 1600 ×780 ×970 (), light quality: 90 kg, processing, little energy consumption: 5.5 kw/h.