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The field enhancement factor on the tip can be as high as 1000[28].
The better sensitivity of this kind of PDMS composition depends on the mechanical properties of the samples.
Raffaella Sesana for the help in mechanical tests, Dr.
Takashima, e.a., Piezoelectric properties of vinylidene fluoride oligomer for use in medical tactile sensor applications.
Bloor, et al., A metal–polymer composite with unusual properties.

Theoretical Formulas of the Ultimate Load-Bearing Capacity of T-Stub Joints The ultimate load-bearing capacity of T-stub joints is concerned with the dimension of T-stub flange, material properties, diameter and position of bolts.
The formulas of ultimate load bearing capacity of aluminum alloy T-stub joints can also be derived on the basis of this model, as long as the properties of aluminum alloy are considered.
The material properties in reference [1] are introduced in the parametric analysis on account of the insufficient data of tension test in reference [7].
Figure 3-b illustrates that the bolt position does not affect the collapse mechanism obviously.
Stress-strain Relationship and Physical-mechanical Properties of Domestic Structural Aluminum Alloy.

Polyolefin microporous film was main varieties of many functional polymer, it was made of polyolefin material by deep processing, and it had efficient separation ability of functional film and excellent mechanical properties of plastic film.
LDPE blend film and composite film were prepared by using the blow molding, crystallization behavior of blend films were studied by means of DSC, and selecting data was processed by method of Mo ZS [4] and modified Jeziorny [5], and various factors which had effect on the performance of LDPE blend films were discussed from the microscopic view, which were conducive to application in the field of keeping food fresh for LDPE blend films.
On the other hand, DE was dispersiveness distribution in matrix, which affected the continuity of the matrix resin and made molecular distance of the material increase, thus increasing the moisture permeability of LDPE composite film.

In some projects of the air-cooling system of power plant, the reinforcing measures for condensate pipe were used, the effect is unsatisfactory, and condensate pipe vibration seriously affects the safe operation of the unit.
This flow pattern discrimination is carried out according to the discriminant parameter of Fr with superficial flow flux and the discriminant parameters of Y with fluid properties.
Conclusions In the condensate pipe system design, we should consider various factors that cause the condensate water pipe vibration.
J.Multiphase Flow, 1974, 1: 537—553 [5] Liu Ding zhi, Research and application of Multiphase Transportation Technology, Southwest Petroleum Institute master's thesis，2003, In Chinese [6] Gu Bilun, Anti-vibration methods and measures for vapor-liquid two-phase flow piping, Petrochemical equipment technology, 2011，32 (2) , China Building Industry Press [7] Cai Zengji etc., Fluid mechanical pump and fan, China Building Industry Press, China Building Industry Press [8] CAESAR II software, Beijing AECsoft engineering software Co.

It is well accepted that finer grain size improves mechanical properties, hot crack susceptibility, pressure tightness, fluidity and feeding to eliminate shrinkage porosity, distribution of second phases and microporosity, machinability and cosmetic features.
It is considered that the extent of refinement of microstructure including dendrite structure largely affect hardness of cast aluminum.
In this study it was also found that SUS434L (bcc) powder shows capability of refinement of microstructure characterized by dendrite structure in cast aluminum, which means that there is some room to consider factors other than crystal structures for stainless steel powders to be refiners for enhancement of microstructure refinement of cast aluminum.

Meanwhile, affected by a lot of time factors,the planning,design and construction of small towns tend to be consistent and the characteristic is more and more fuzzy,so it is necessary to discuss the protection and development of the vernacular landscape during the fast urbanization process to provide ideas for the healthy development of small towns.
The components of the vernacular landscape of small towns are complex and diverse.We divide the components into two major categories including natural environment elements and humanities landscape elements.Natural environment elements are the basis material carrier created by vernacular landscape,and a kind of objective existence and natural landscape form;According to material properties and characteristics,humanities landscape elements can be divided into material cultural landscape elements and non-material cultural landscape,the fist are material substance of cultural landscape,the latter mainly refers to the local special customs and morals of the people,adhere to the natural environment elements and above cultural landscape elements.
Secondly,the designers are used to imitate others.The convenient information sharing platform, following popular design ideas and lacking of innovation consciousness,make a lot of same and featureless designs.Tirdly,local government leaders tend to dominate the designer's subjective consciousness,then generates a lot of mechanical designs without soul.Forthly, global integration has brought syncretic communication among countries .Western dominant cultures are infiltrating Chinese various aspects of traditional lifestyles,values,behavior habits, aesthetic taste and so on[3],and a lot of places are lack of self-protection consciousness,lost in the tide of cultural convergence,and lose its own characteristics.

The performance of super abrasives grinding tools is being affected by a variety of individual factors like the dressing process as well as the coolant lubricant used [1,2,3].
The use of polymers in coolant lubricants provides for the adjustment of the viscosity and consequently of the lubrication properties.
Auflage, Springer-Verlag, 2005 [2] Tawakoli, T.: High Efficiency Deep Grinding, Technology, process, planning and application, Mechanical Engineering Publication, London, 1993 [3] Werner, G., Tawakoli, T.: Fortschritte beim HEDG-Verfahren mit CBN-Schleifscheiben, Industrial Diamond Review, IDR 1 (1990) [4] Schulz, A.: Das Abrichten von keramisch gebundenen CBN-Schleifscheiben mit Formrollen, Dr.

Wavelet packet in vibration signal analysis for mechanical equipment is applied widely.
With energy normalization for characteristic factors of equation (5), characteristic vectors are obtained as follows [3]
Flue gas turbine units are complex multi-layer mechanical systems.
From the property of common wavelet functions mentioned above and requirements for wavelet function selection this paper uses basic wavelet function Daubechies wavelet.
Because signal energy in the frequency band is affected when the system has fault, characteristic vector is constructed using the energy after normalization processing as element [5,6].

Compared with the mechanical seeders, pneumatic seeders have a broader applicability.
As the mechanical precision seeding device has a strict limit on the shape of the seed and a high damage rate of the seed, along with the complicated structure and cumbersome body, these weaknesses restrict the development of the mechanical precision seeder[3].
When the seeds pass the suction hole, affected by the suction of the negative pressure flow field around the suction hole, the seeds would be absorbed to the suction hole.
The design parameters of seeding device are optimized according to vegetable seeds seeding factors and test results.
[17] Xing Zhanqiang, Gu Song: Properties of Air Suction Type Vegetable Seeder for Tray.

Effect of Injector Nozzle Design on Spray Characteristics for Hydrogen Direct Injection Engine Conditions Mohd Radzi Abu MANSOR1,a *, Nor Afzanizam SAMIRAN2, Wan Mohd Faizal Wan MAHMOOD3 and Nazatul Akhma RAJA4 1,2,3Department of Mechanical and Materials Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia. 1,3Centre for Automotive Research, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia. 4Faculty of Education, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia.
Hydrogen has a unique flammability property compared to other fuels.
Based on majority of past studies, it is commonly found that the nozzle hole geometry of a diesel injector affects the fuel/air mixing process, and therefore the fuel atomization, which directly influence the combustion and the exhaust emissions.
It was also determined as the most important factor in increasing fuel economy.