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Introduction: Polymer–nanocomposites combine desirable physical and chemical properties of both organic (i.e., solubility, large polarizability, high photon absorption, bio functionality, and plasticity) and inorganic (i.e., wide range of electronic, magnetic, optical, thermal, and mechanical properties) components.
However, the final structure developed by the above process is continuous and thereby severely affecting the specific surface area of the films.
The functional property of the resulting membranes is expected to be the sum of properties of the inorganic and polymeric components.
The resultant films showed excellent mechanical, thermal and optical properties.
One of the factors to be improved for better photovoltaic parameters is to reduce the percolation threshold thereby providing better connectivity with the nanowires.

The layers have a higher protective mechanical and electrical parameters which are the key factors of the bulk aluminum properties.
Research on thin aluminum films can be conducted by studying the alumina layers on its’ surface due to its’ high mechanical values and low conductivity influences which is part of aluminum properties.
Lundqvist, Surface properties of metastable alumina: A comparative study of k- and α-Al2O3, Phys.
Barbot, Physical properties of Co/n-Ge Schottky contacts.
Yeyati, J. van Ruitenbeek, Quantum properties of atomic-sized conductors, Physics Reports, 377 (2003) 81-279

Introduction Because ammunition properties will gradually decrease during ammunition storage, especially, under certain storage conditions, the large slenderness ratio long overweight ammunition’s inherent performance and form factor are more prone to change, which will affect the ammunition secure storage and reliable usage[1].
To meet the accuracy of the spatial phase angle, a several tons, large iron castings up to about 8m is used to be a reference body, so the current detection accuracy of the angle is not traceable. [4] This paper studies the quantitative detection method using laser technology, image recognition and image detection technology for spatial phase angle in laboratory conditions; it also provides a new theory and method to further improve the properties of the product.
directional buttons benchmark and laser light bar I α+δα The revised angle of plug benchmark and laser light bar II β+δβ compensatory value of directional buttons benchmark δα The angle of directional buttons benchmark and laser light bar I α compensatory value of plug benchmark δβ The angle of plug benchmark and laser light bar II β 1 0.092 42.905 -0.053 51.582 2 -0.098 42.919 -0.044 51.568 3 -0.114 42.925 -0.014 51.546 4 -0.064 42.900 -0.044 51.552 5 -0.105 42.914 -0.004 51.507 6 -0.106 42.948 -0.010 51.520 7 -0.099 42.955 -0.028 51.521 The average of γ 85.663 The standard deviation σ of γ 0.0150 ±3σ ±0.045 As the table shows, the actual test result of the two products’ spatial phase angles are 84.671 and 85.663, respectively, indicating that when the pin plug from mechanically processed metal ‘standards bodies’ calibration reference is used to control of the whole ammunition spatial phase angle (theoretical design value is 85), due to the components shape and position error and human factors
(3) If further research has been made on this measuring method and device, the problem that mechanical tooling angle used in the production cannot be accurately measured and standardized may be solved.

One of the micro alloying elements Nb has effect on the mechanical properties of heat-treated parts .
Lead addition to steel improves the machinability and mechanical properties.
But the exchangeable elements affect the mechanical properties and productivity.
This research concluded that the minimized MnS size and isotropic distribution in the steel had good strength, mechanical properties as well as machinability.
Fig.1 shows the microstructure of the specimen with magnification factor 250 x MAS Alloy % C %Cr %Si %Mn % Ni %Cu %Mb %Zn %Ti %V % Fe 38MnSiVS5 0.41 0.002 0.40 1.38 0.001 0.08 0.02 0.08 0.05 0.18 Bala-nce Table 1.

Forming over, cooling device cools the inner shell and then the part is stripped off and delivered to the following stations for trimming and inspection. [2] The Forming Introduction of Freezer Inner Shell Figure 1 presents a certain type of refrigerator inner shell, and the material is thermoplastic ABS, with the characteristics of low shrinkage rate, high toughness and mechanical strength, steady dimension, excellent chemical resistance and good electrical property and it absorbs moisture easily.
And this material is easy to be formed and mechanical processed. [3] The shell structure is not complex.
The freezer inner shell is the main component of a refrigerator, and its forming quality will affect the fridge appearance and other forming process, such as foaming process.
In order to make full use of the equipment and to improve the production efficiency, we can use the freezer dual mode structure, as Figure 2 shows: Fig.1 Freezer inner shell of a refrigerator Fig.2 Dual mode structure Vacuum Plastics-absorption Mould Design for Freezer Inner Shell of a Refrigerator In the vacuum plastics-absorption forming, the mold is the key factor that affects the product quality, production efficiency and production cost.
Fig. 4 Slide block core-pulling mechanism Fig. 5 Slide block The fitting clearance between slide block and mould greatly affects the movement of slide block and the surface quality of the shell parts, and the unilateral clearance takes 0.05 ~ 1 mm.

The problem described in the paper concerns the thermo-physical properties of the green mould material to which the cast iron is most often poured.
The goal of the study was to determine the substitute thermo-physical properties of mould sand containing the over-moisture zone by means of simulation tests (inverse problem).
Together with these transformations the mechanical and thermal properties are modified and that depends on the time (intensity) of heating.
Buras, Thermal properties of foundry mould made of used green sand, Archives of Foundry Engineering, Volume 16, Issue 1/2016 (2016) 29-32 [12] M.P.
Ignaszak, Thermophysical Properties of Mould Materials in Aspect of Solidification Control of Simulation Process (in Polish).

Incorporation of fibers in concrete composites has the potential to improve these properties of concrete.
The polypropylene fibers (PPF) have the unique properties of chemically inertness and low cost raw materials.
Discussions on the considered properties of PC and PPFRC are made.
The well dispersal of fiber gave better control of cracking to accomplish enhanced durability and improved mechanical properties [8,9].
Artificial fibers can play a vital role in improvement of mechanical properties of concrete.

Microstructure and Stress Variation of Semisolid 7A04 Alloy during Isothermal Compression YANG hui1, a, TIAN Wentong1 1School of Mechanical and Technological Engineering, CIT, Changzhou 213002, China ayangh@czu.cn Keywords: semisolid 7A04 alloy; deformation temperature; strain rate; segregation of liquid-solid phase Abstract: The microstructure and stress variation of semisolid 7A04 alloy have been studied through unconstrictive isothermal compressing test.
Analysis on the microstructure of compressive specimen demonstrates that segregation of liquid-solid phase is mainly affected by strain rate and deformation temperature.
Because compressive deformation is the main deformation style in the metalworking, and the compressive behavior of semisolid alloys is completely different from that of solid alloys due to its peculiar properties.
The alloy possesses strain rate sensitivity in semisolid state, which means that deformation temperature and strain rate are two key factors to determine the main deformation style of compressive deformation in semisolid state.

Micro-mechanical piezoresistive accelerometer was first demonstrated in the late 1970s by Roylance and Angell [1].
Because of processing factor, piezoresistor’s resistance is different from each other.
This paper uses ANSYS software to simulate the accelerometer’s self-test property, and the FEA model is shown in fig.6.
This perhaps causes by the following reasons. 1) The piezoresistors’ practical resistance is bigger than the designed. 2) The beams will have various degree deformation caused by the residual stress. 3) Noise jamming signal will affect the testing results.
Study of Piezoresistive Micro Electro-Mechanical Accelerometer Design Platfor.

Mohammadali et al. have compared the absorption properties of acoustic panels made of wheat straw with those made of different proportions of Aspen particles [5].
Yu et al. have tested the sound absorption capacity of some wooden building materials and analyzed the main factors that affect the sound absorption of wooden building materials [6].
Zhong has studied the structure, material characteristics, sound absorption properties and application of decorative perforated wooden panels.
As to the importance of technical requirements, their sequence is: H1> H3> H2> H5> H4> H6> H8> H7> H9, indicating sound-absorbing effects and price are the most critical factors, followed by environmental and decorative performances, while size and installing performance are comparatively inferior.
Mechanical Engineering and Automation, 2009,(1): p. 57-60