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Due to its exceptional electrical, mechanical, and chemical properties, SiC is currently receiving attention as an alternative to Si for use in micro- and nanoelectromechanical systems (MEMS and NEMS).
SiC is now receiving added attention for its potential in micro- and nanoelectromechanical systems (MEMS and NEMS) due its exceptional electrical, mechanical and chemical properties as compared with Si, currently the leading material in these technology areas.
In a follow-on study, we found that several mechanical properties critical to MEMS, namely Young's modulus and residual stress, were strongly influenced by the microstructure of the poly-SiC films [5].
A resonator of this type exhibited a mechanical quality factor of 150,000 when tested under vacuum conditions and was operated successfully at a temperature of 1000°C [7].
The very high quality factor and the high operating temperature can be attributed to the outstanding mechanical properties of poly-SiC.

Overall buckling, local buckling, distortion buckling and their interactions, and the use of post-buckling strength of components make the mechanical properties of cold-formed components complicated.
Local Buckling The key components affecting the buckling loads are web and second- flange.
For perforated columns, the size, quantity and spacing of holes are important factors affecting distortional buckling.

Imogolite showed the similar properties to CNTs.
Then their feature and difference of properties were investigated.
Then what is the reason that graphite and CNTs show the inverse properties?
On structural view point the fibrous nano-meshwork structure of agglomeration of CNTs contains the large porosity where cells can take nutrient elements or growth factors.
On CNT scaffold, however, cells were going to detach and float up, but could not separate because of the mechanical binding of filopodia with CNT network (Fig.8), which demonstrates the good cell adhesion properties of CNTs.

Hyaluronic acid is one of the most promising polymers for nanofiber formation due to its unique biological and biochemical properties.
Obviously, the composition of the spinning polymer solution can affect both the formation process of nanofibers and the morphological, physico-mechanical, physico-chemical, and biological properties of the resulting polymer nanofibers.
This study eliminates the shortcomings of fundamental knowledge of the relations of technological factors such as applied voltage and flow volume rate and the morphological characteristics of nanofibers obtained from aqueous-organic solutions of hyaluronic acid.
By changing the applied electrical voltage and flow volume rate the nanofiber with required set of properties could be obtained.
Cui, Effects of ambient relative humidity and solvent properties on the electrospinning of pure hyaluronic acid nanofibers, J.

The experimental results showed that the screw thread in probe is the main factor in driving material flow along the thickness direction of the weld during FSW of copper and steel, the flow morphology of the weld is significantly different with vary forms of welding joints, and the material flow on different locations from the probe are quite different from each other.
Copper and steel are quite different from each other in chemical property, physical property, mechanical property and other aspects.
Compare to the cross-section morphology of the weld with left screw thread probe and right screw thread probe, we can defined that the direction of screw thread in probe affects the flow of the plastic metal of the weld.
In a word, we can determine that, the screw thread in probe is the main factor in driving material flow along the thickness direction of the weld.
The direction of the screw thread in probe will change the force status and mobility patterns, thus affecting the flow of the material of the weld.

In the discrete enterprise, devices have properties of strong versatility and large redundancy, and the enterprise efficiency is decided by product design rather than process control.
Knowledge Models for Process Enterprise Equipment Management We designed the equipment management knowledge models in order to study the influence factors of process enterprise from equipment’s mechanical property, technical parameters, operating criterions, maintenance, throughput, operating costs, enterprise efficiency, etc.
In order to achieve integrated decision flow, the model analyzes the various factors including equipment mechanical property, technical parameters, operational condition, device lubricating & maintenance, production capacity, operating cost, etc
The product cost of process enterprises is influenced by various complex factors.
The period of evaluating process and information feedback are active factors

It also shows anti-bacterial properties.
Many researchers studied and reported different properties of chitosan films like it clear, homogeneous and flexible, with good oxygen barrier and mechanical properties.
Fibers: Kunike prepared Fiber from chitosan solution first time as early as 1926.[54] Fibers possesses many advantages such as superior mechanical properties compared with the same material in bulk form.
Both the solubility in acidic solution and aggregation with polyanions impart chitosan with excellent gel-forming properties.[90] Even though chitosan is known to have important functional activities, the poor solubility of chitosan is the major limiting factor in its utilization.
Modification of chitosan provides a powerful means to promote new biological activities and to modify its mechanical properties.

Engineering Overview The construction control are the key for long span bridge to ensure the safety and stability in the process of construction[1-7].In history, some serious accidents with the loss of lives and money have happened because of the absence of effective controlling technologies in construction.As a unique arch bridge, Tongtai Bridge consists of oblique arch rib, curved beam and spatial inclining suspenders,which result in more complicated force properties for arch rib.In the absence of ready-made experience situation, the questions, as far as arch rib is concerned, involving how to make a construction plan, clarify critical points need to be controlled at every stage of construction, offer effective measures to ensure the safety during construction of arch rib and make the mechanical state as close as possible to design level must be researched and settled.
Fig. 2 Layout of Segments of Arch Rib[mm] Control of Alignment for Arch Rib during Installation Alignment of arch rib directly affects the distribution of stress.
(iii) Treatment to temperature influence.To reduce the difficulty settling the complex influence factor,the temperature doesn’t be taken as a separate case but as a correction term,and the period lifting and adjusting arch rib is chosen at night or in the morning before sunrise.
As a factor that it is difficult to be settled,temperature has a greater influence on the shape of arch rib during construction control.
Closure precision of arch rib directly affects the alignment and stress of the arch rib.

[2] F Monteverde, Progress in the fabrication of ultra-high-temperature ceramics: “in situ” synthesis, microstructure and properties of a reactive hot-pressed HfB2-SiC composite, Compos.
Yang, Microstructure, mechanical performance and oxidation mechanism of boride in situ composites, Compos.
Kingery, Factors affecting thermal stress resistance of ceramic materials, J.

Huang Xianguo et al. tested transverse amplitude and dynamic properties before and after strengthening to evaluate repair effect of XiaoTangHe Bridge on the SuHuang railway [2].Although a lot of researches about bridge strengthening detection have been demonstrated, it is still difficult to implement a long-term bridge health status monitoring, which is a necessary means to accurately evaluate the strengthening effect.
Where M is the dynamic bending moment, E is the concrete elastic modulus. q is the distance from Cross section of neutral axis to sensor. 3.3 The transverse vibration amplitude and frequency analysis The transverse vibration amplitude and frequency of the bridge are also important factors which affect the structure stability of the bridge.
Due to the dynamic load, both the load and speed of the train affect flexural plane.
Passive Fiber Bragg Grating Sensor for the Mechanical Vibration Monitoring Based on Cantilever Beam Tuning Technology, Acta Photonica Sinica,2003(9) [6] Ministry of Railways, The code for rating existing railway bridges[s], Beijing, China railway publishing house, 2004