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Design and Experiment of PVDF Transducer for Laser Ultrasound Detecting GENG Sen-lin1,a, ZHANG Xiu Qin2,b, LI Fang-ju1,c 1 College of Physics and Electrical Engineering, Weinan Teachers University, Weinan 714000 Shaanxi, China 2 College of Chemistry and Life Science, Weinan Teachers University, Weinan 714000 Shaanxi, China a senlingeng@163.com, b wnzhangxiuqin@163.com, c juzi8366@126.com Key words: PVDF transducer; design; experiment; laser ultrasound Abstract: The design of PVDF transducer is finished and its designing idea and structure frame are presented.
The Study of ultrasonic longitudinal velocities for nano structure NiAl alloys by laser ultrasonic technique[J].
Power spectrum of laser generated ultrasound in nano-structured AlP / SiO2 [J].

In Situ Preparation of Magnetic P(AOS-St-BA)-Coated CoFe2O4 Composite microspheres In Soapless Emulsion Wei Liu a, ChunHua Zhou b, GuangQiang Xu c, Ying Feng School of Chemistry and Chemical Engineering of University of Jinan, Jinan, 250022, China aliuwei.5678@yahoo.com.cn, bchm_zhouch@ujn.edu.cn Keywords: Magnetic polymer microspheres; Soapless emulsion; Core-shell structure; Sodium 2-olefinsulfonate.
Results of IR and TEM analysis demonstrate that the desired polymer chains has been covalently bonded to the surface of CoFe2O4 nanoparticles, and confirmed that the composite particles have the core-shell structure.
It has been reported that inorganic-organic composites of core-shell structures can be fabricated by soapless emulsion polymerization[4~7].
This means that the core-shell structure of CoFe2O4/ P(AOS-St-BA) composite microspheres were formed.
Magnetic P(AOS-St-BA)-Coated CoFe2O4 Composite microspheres had core-shell structure and good distribution.

The general structure of multilevel models of polycrystalline inelastic deformation based on crystal plasticity and allow describing the evolution of materials internal structure is considered.
The paper focuses on the description of hardening laws formulated on the basis of physical analysis of defect structure elements interactions.
These hardening laws (by its nature) reflect the evolution of meso- and microstructure of the material according to their structure, i.e. the evolution of defect structure in the inelastic deformation (primarily the changes in the dislocation structure of the deformed material).
Particular attention is paid to the description of the hardening laws that are based on physical analysis of the interaction of the defect structure elements.
Shukla M.K (Eds.), Practical Aspects of Computational Chemistry, Springer Science Business Media B.V., 2009, pp. 87–135

Contemporary domestic structures typically use masonry units that are approximately 100mm thick.
Background The term ‘geopolymer’ can be applied to a range of products with similar underlying chemistry.
The underlying chemistry and manufacture of geopolymers is described in detail by Duxson et al. (2007) and Davidovits (2008).
Although obviously variable, cohesive soils that are used for earthen structures have a quantifiable amount of clay mineral content and are inherently a source of aluminosilicates such as kaolin and illite.
Geopolymer chemistry and applications.

Structural Evolution in the Systems TAl3-xGex (T = Zr, Hf) Danylo Maryskevycha, Yaroslav Tokaychukb and Roman Gladyshevskii c Department of Inorganic Chemistry, Ivan Franko National University of Lviv, Kyryla i Mefodiya St. 6, 79005 Lviv, Ukraine adanylo.maryskewytsch@gmail.com, btokaychuk@mail.lviv.ua, croman.gladyshevskii@lnu.edu.ua Keywords: zirconium, hafnium, aluminum, germanium, X-ray powder diffraction, crystal structure Abstract.
The structure types ZrAl3 and ht-TiAl3 are both members of the family of close-packed structures.
The crystal structure of the (Al-rich) room-temperature modification belongs to the structure type ZrAl3 (I4/mmm, a = 4.010, c = 17.31 Å) [10], whereas the high-temperature modification adopts the structure type ht-TiAl3 (tI8, I4/mmm, a = 3.893, c = 8.925 Å) [6].
The crystal structures of the ternary compounds ZrAl2.52Ge0.48 and HfAl2.40Ge0.60 belong to the tetragonal structure type ht-TiAl3 (tI8, I4/mmm) (see Table 4).
Their structures belong to the structure type ht-TiAl3, which is closely related to the structure type ZrAl3, to which the structures of the binary phases belong.

Electrodeposits have fine structure and have valuable physical properties.
Lamy: Journal of Electroanalytical Chemistry Vol. 563 (2004), p. 81
Trivedi: Coordination Chemistry Reviews Vol. 249 (2005), p. 613
Lai: Materials Chemistry and Physics Vol. 112 (2008), p. 1074
Milchev: Materials Chemistry and Physics Vol. 72 (2001), p. 360

Menendez [44-47] investigated microwave-induced pyrolysis of sewage sludge, focusing on products distribution and composition, structure, properties and the reaction mechanism.
Suzuki: Journal of Chemistry Engineering of Japan, Vol. 12 No. 3(1988), p. 288
Suzuki: Trends in Physical Chemistry, No.1(2003), p.157
Suzuki, et al: Chemistry Letters, Vol. 12(1986), p.1425
Fonts, et al: Industrial & Engineering Chemistry Research, Vol. 47 No.15(2008), p.5376

Variations in chemistry of acid mine drainage and associated microbial communities As described above, AMD is typically a metal laden, acidic solution.
The benthic zone of the AMD channel was heavily populated by microorganisms, which formed mat-like community structures.
It was proposed that bioreactors of mixed communities of these microorganisms could be used to achieve complete oxidation of ferrous iron, and would be better suited for treatment of AMD of varying chemistries than a bioreactor of a single organism.
Such emerging strategies include the use of acidophiles with varying pH optima for oxidation and precipitation of iron from AMD of varying water chemistry.
Aquatic Chemistry: An Introduction Emphasizing Chemical Equilibria in Natural Waters.

The thermodynamics is a surprising science which, modestly starting from the analysis of heat (steam) engines, towards the end of the 19th century became an important constituent part of physics and chemistry, also finding its way into biology and cosmology.
In the thermodynamic approach there is no need for the models of the structure of matter, this being its main advantage.
The quantitative description of this phenomena can be found now in any hand-book on thermodynamics or physical chemistry.
Asimov: A Short History of Chemistry (Doubleday, New York 1965) [5] B.S.Bokstein and L.S.Shvindlerman: Sov.
He did it, and this paper was very useful for scientists working in chemistry and metallurgy.

Enriquez1,b* 1Department of Chemistry, Ateneo de Manila University, Quezon City, Philippines ajpauco@ateneo.edu, bepenriquez@ateneo.edu Keywords: inkjet printing, gold nanoparticle ink, electrochemical cell, cyclic voltammetry Abstract.
Zorman, “Review—Inkjet Printing of Metal Structures for Electrochemical Sensor Applications,” J.
Ben-Nir et al., “Electrically conductive inks for inkjet printing,” in The Chemistry of Inkjet Inks, 2009, pp. 225–254
Magdassi, “The chemistry of inkjet inks,” in The Chemistry of Inkjet Inks, 2009, pp. 1–345