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Synthesis of Zinc-Containing Amorphous Calcium Phosphate Tomohiro Uchinoa and Keitaro Todab Department of Chemical Biology and Applied Chemistry, College of Engineering, Nihon University, 1 Nakagawara, Tokusada, Tamura, Koriyama, Fukushima 963-8642, Japan a uchino@chem.ce.nihon-u.ac.jp, b u205111@cc.ce.nihon-u.ac.jp Keywords: amorphous calcium phosphate, zinc-containing calcium phosphate, controlled release Abstract.
Tung, Calcium phosphates: structure, composition, solubility, and stability, in: Z.

The quality of jade material is evaluated through color, structure, transparency, impurity content and lumpiness [1-2], among which, color is the top priority and its acceptable level sometimes affect the commercial value of the jade.
Wet chemistry is applied to analyze jade sample so as to know the chemical constitutions of An’lv jade.

Introduction Quantum dots (QDs), artificial atoms, as the fluorescently labeled materials, had many applications in physics, chemistry, material, biology, medicine and so on because they had many excellent properties compared with the tradition dye such as narrow and symmetrical spectrum, fluorescent color could be changed by controlling the size of the nanocrystals conveniently, a wide and continuous excitation spectrum and excellent chemical stability.1 In recent years, the paramagnetic ion doping and ground magnetic semiconductor components had attracted widespread attention,2-5 and the doping technology was a good way to control the optical, electricity, and spin properties of the nanoparticles.2,5 Mn-doped ZnS QDs, instead of the CdS, had been investigated with the advantages of lower toxicity, larger Stokes shifts, and enhanced thermal and environmental stability.6-10 Currently, the main synthesis method was organic-phase and water-phase.
Results and Discussions Fluorescence and structure The Figure 1 (a) was the fluorescence and absorption spectra of the Mn-doped ZnS QDs, it was showed that the QDs appeared an emission at the 593 nm, and this emission was formed by the transition of the Mn2+ 4T1→6A1.

For a long time many experts and scholars have researched on rocks and minerals, chemistry, sedimentary environment, provenance, mineralization age, and mass balance calculation of the bauxite [1-15].
Fig. 1(a)Locality map of Guizhou,(b)The map showing the location of the study area, (c)Geology map of the WZD area in northern Guizhou Vertical zonation Vertical diversity of metallogenetic environment resulting in vertical regular alteration such as color, structure and composition of the WZD bauxite.

(8) Fuzzy neural network structure and the principle of organization control system Figure 1 is FNNCS (Fuzzy Neural Network Control System) that represents the neural fuzzy inference network controller, fuzzy neural network is actually a chapter in the simplified model, it directly to realize fuzzy, fuzzy rules fast parallel computing, and the average sentence, given the control quantity U, PNN said the index of network performance measurement, it represents the fuzzy performance measurement in organizational control query table, thereby correcting the control quantity[5,6].
Vol. 18 (2005), pp. 74-76 [4] K .Zhang, Journal of Fuel Chemistry and Technology.

Studies presented in this book cover these topics: composites, micro / nano materials and technology, steel and iron and technology, ceramic, metal alloy materials, polymer materials and technology, physics and chemistry materials and technology, building materials, energy materials and fuel technology, environmental friendly materials and waste recycling, biomaterials, chemical materials and processes, thin films, earthquake resistant structures, materials and design, surface engineering/coatings, modeling, analysis and simulation, materials forming and processes, materials machining, welding & joining, mechanical behavior & fracture , tooling testing and evaluation of materials.

The structured format of the proceedings allows one to quickly find information on any specific subject.
The surface chemistry and removal of contaminants from the surface is treated in these chapters: dealing first with Front-End-of-Line (FEOL) processes.

These data demonstrate that the molecular structure of coating does not be destoried by corrosion.
Sun: Chemistry and Adhesion, Vol. 29(2007), p. 122-125, in Chinese

At present, the sound chemical research was used to the chemistry, chemical engineering,Materials and other fields[1-4], the solution which contained silver cyanide was usually used .however, highly toxic cyanide, resulting in drainage treatment, drugs and plating fluid management, operation safety and so on.
Fig.1 the relationship between ultrasonic power and current efficiency The affaction of different ultrasonic power for the structure of crystal.are shown in Fig2.

The aim of our works is the search for new ceramic materials, with perovskite structure [4-6], which could find applications in various fields such as mechanic, electronic, micro-electronic, aerospace….
Taïbi - Benziada , Solid State Chemistry ,V , ( 2002 ), p. 433 [7] H.Cherfouh, A.Mezroua, B.