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As the important part of mechanical devices and skeletons, mechanism affects the dynamics and kinematics performance of the entire plant, it determines the basic properties of product, is the fine performance of mechanical systems with lies.
Therefore, in the field of mechanical creative design, The first is by creative design of mechanism.
The topological structure of mechanism refers to the sports properties of mechanism, freedom, link assortment and Join relationships between them, which is on the premise of not involving scantlings exported, although is not equivalent to the actual characteristics of the body, but it represents the inherent properties of kinematic chains, is an extremely important factor in decision mechanism characteristic.
This method allows the designer to him, by analogy to ensure predictability and rationality of product design, also laid the foundation for further invention and createnew type mechanical device.
Yao Yan an,wang yu xin, Guo Ke qian translation. creative design of mechanical device [m].

Materials and Methods of Research Softwood is used for bearing timber structures due to its good physical-mechanical properties and operation reliability.
It is necessary to take into account mechanical and elastic properties of reinforcement.
In this case, the joint strength depends on mechanical properties of glue and weaker material from the glued materials.
Chang: Nonlinear pre-yield modal properties of timber structures with large-diameter steel dowel connections.
Cruz: A review of factors influencing the durability of structural bonded timber joints.

Addition of ingredients in the dielectric fluid improves the properties of fluid for better machining of the samples.
Even though ceramic materials possess good electrical, mechanical and thermal properties, the spark control during erosion is a cumbersome process.
Signal to Noise (SN) ratio gives the impact information of factors considered in this study with the additional factors available in the environment, which may also influence the experiment.
Table 5. shows the linear model analysis results with SN ratios varying over its input factors.
Mean of SN ratios over the input factors at various levels for MRR The following fig. 5. shows the influence of major process parameter (dielectric medium) with other factors considered for measuring the machining time.

Introduction Osseointegrated titanium implants have been widely used in clinics for replacement of missing teeth, and the surface properties of titanium implants are closely related to the process of osseointegration.
The mechanism includes forming Bungner bands for the growth of nerve axons, remyelination, secretion of neurotrophic factors, and so on.
As shown in Fig. 3, the cell morphology was not affected by both MAO coating and the smooth titanium discs.
The amount of brain-derived neurotrophic factor (BDNF) in the conditioned medium was measured by ELISA in this study.
BDNF is one of most important growth factors secreted by Schwann cells, and considered to be essential for the regeneration of periodontal mechanical receptors.

Using structural vibrations to extract damage sensitive features, problems can arise due to variations of the dynamical properties with changing environmental and operational conditions (EOC).
In this context a long time monitoring of the dynamical properties has to be accompanied by proper approaches to compensate the operational and environmental effects on the extracted features.
It will be also very interesting to apply the mentioned classification technique on different damage features e.g. modal parameters, statistical properties of signals, model or regression coefficients, etc.Fig. 6: Damage detection without (left) and with EOC compensation (right) References [1] H.
Mechanical Systems and Signal Processing, 22:34--56, 2008
Mechanical Systems and Processing, 19:865--880, 2005

The Application of Recycled Aggregate Concrete in Road Engineering Wanlin Guo Hunan Communication Polytechnic, Changsha, 410004,China room 302,Unit 1,No.1 building, Xiang Han Royal homes, Forest Road 341,,Changsha, Hunan province,China Key words: Recycled concrete; Road engineering; Application Abstract: Through the introduction of the application situation and basic properties of recycled concrete,the author analyzes its application value and and research direction in engineering application,and then puts forward to the application prospect of recycled concrete in road engineering.
The basic properties of the recycled concrete Concrete mixture ratio and the performance of the recycled aggregates can affect the performance of recycled concrete.
In the same condition, its mechanical properties, deformation properties, durability and workability performance are lower than those of ordinary concrete, which makes the recycled concrete be lower than that of normal concrete in structure. 2.1 Recycled concrete workability The major factors influence the workability and regeneration of recycled concrete’s replacement rate and water-binder ratio.
Second, similar to the natural aggregate concrete, under the same conditions,The higher the water-binder ratio is, the greater the slump is. 2.2 The mechanical properties of recycled concrete The crushing method, the aggregate replacement rate, the original concrete strength grade and recycled concrete mixture ratio of recycled aggregates has a certain degree of influence on the strength of the recycled concrete.
(3) Research in road engineering, after mixing polypropylene fiber with the recycled concrete, polypropylene fiber’s early ,medium and long-term influence on the the properties of recycled concrete the best mixing quantity of polypropylene fiber

For instance, the properties of materials made by additive means must meet or exceed the specifications for materials made by conventional methods.
Such digital control of the chemistry, microstructure and behavior can result in materials with properties not found in naturally-formed substances.
DDM seeks process monitoring and control at the voxel level, a voxel being the smallest volume in the material that could be manipulated for composition and properties.
DDM concepts could be developed for materials with tunable electronic and mechanical properties, mechanical components with reinforced high stress regions, casting molds with heat sinks and melt risers, integrated multi-component devices, precise localized repair of worn components, and components with embedded structures, circuits and electronics.
DDM certainly appears to be a promising way to create materials and structures with unusual properties and behavior.

Introduction The aircraft aluminum alloy structure has the character of light weight and high strength,but it is sensitive to the local airport environment and easy to corrode under the effect of environment,further more the corrosion position would evolve to crack and propagate with the aircraft fatigue load,this would shorten the aircraft fatigue life[1,2].This corrosion and fatigue procession is affected by many factors,so it can be viewed as a essentially non-linear dynamic system,which suggests that the procession could be analysed by artificial intelligence theory and method.This paper applied artificial neural net method to analyse the corrosion fatigue life of aircraft LY12CZ structure with test data.
Acquisition and disposition of the test data The calendar life of aircraft will last 30 years and the structure material will be influenced by local environment during the service period,so this paper statistically analysed a typical airport environment factors and established accelerated corrosion environment spectrum with the equivalent relation theory to shorten the time of corrosion test.The composition of the environment spectrum is shown as Fig. 1,the dimension of LY12CZ specimen is shown as Fig. 2.
Dealing the Eq. 1 with logarithm,the S-N curve could be depicted as: (N≥5×103) (5) so relationship between the logarithm corrosion fatigue life and the stress level under equivalent corrosion year is linear,the fitting result was shown in Table 4,and the fitting line under equivalent corrosion 3 year was shown as in Fig. 5.As shown in Table 4 and Fig. 5,the linear correlation property between the lgSa and lgN is fine,and the slope parameter is correspondent to document[6].
[2] YANG Yugong,XUE Jingchuan,JIAO Kunfang.DFR Method In Corrosion Fatigue Analysis Of Aircraft Structure[J].Journal of Mechanical Strength, 2004,26(S):52-54
Research On Mechanical Prorerties Of LY12CZ Aluminum Alloy Under Calender Corrosion Environment[J].Journal of Mechanical Strength, 2003,25(2):227-228.

The waste that can be part of this production cycle can be different, also in terms of nature, properties and chemical composition.
Results The obtained granules have been tested in terms of physico-mechanical and leaching properties.
The open porosity is an important factor affecting the mechanical characteristics of the aggregates.
The three different mixtures of light artificial aggregates produced were tested to determine the mechanical properties in order to evaluate the technological performance of the aggregates produced.
Furthermore, it was possible to deduce that the artificial aggregates produced with the greatest quantity of cement in the mix-design, turn out to be the most performing in terms of mechanical properties (crushing strength value 1.86 MPa).

Its experimental study of seismic Performance is carried out from the following three aspects: material properties of soil and mechanical properties of adobe masonry, bearing capacity and seismic performance of the bearing wall, seismic performance and whole constructional measures of housing structure.
Soil Test and Experimental Study on Mechanical Properties of Adobe Masonry.
However, soil as a basic building material of raw-soil structure, mechanical properties of adobe wall or bulk with the formation of wet soil or dry is very little studied currently.
By these tests, scholars obtained the failure mode, failure process, load-displacement curve, the compressive and shear strength of the clods, analyzed the main factors impacting material properties of raw-soil structure, and got results that soil type, soil admixtures, soil moisture and soil vertical stress and other factors directly affect the soil compression, shear properties and the appropriate straw, lime, admixture can improve the properties of soil.
These results provide a reference for the study of seismic performance, mechanical properties of raw-soil wall, and a reference for standards of raw-soil structure compilation and further research.