Search results

Take Hemimorphite for example, research of molecular structure of amine shows that: with the number of carbon atoms in the amine increases, collecting capacity of amine to hemimorphite also increases, while the selectivity of the amine is also getting better and better[1].
Comclesions For zinc oxide mineral is diverse, high slime content, complex structure, fine disseminated extent, etc, in recent years has carried out extensive research on reagent and process, but many of the achievements is subject to technical, economic conditions so that cannot be put into production.
The National Metallurgical Physical Chemistry Academic Conference Proceedings of 2008. 008. p. 620-624

Fabrication of Microfibrous Patterns via Electrospinning Yuanyuan Huang1, a, Shuliang liu1, b, Bin Sun1. 2, c and Yunze Long1.3.4, d 1College of Physics, Qingdao University, Qingdao 266071, China 2College of Chemistry, Chemical Engineering and Environment, Qingdao University, Qingdao 266071, China 3Key Laboratory of Photonics Materials and Technology in Universities of Shandong Qingdao University, Qingdao 266071, China 4State Key Laboratory Cultivation Base of New Fiber Materials and Modern Textile, Qingdao University, Qingdao 266071, China a15006481317@163.com, bjiandanweisui@163.com, cqdusun@126.com, dyunze.long@163.com Keywords: Electrospinning, Micro/nanofibers, Fibrous pattern.
Gupta, Co-axial Electrospinning for Nanofiber Structures: Preparation and Applications, Polym.
Zhu, Bionic electrospun ultrafine fibrous poly(L-lactic acid) scaffolds with a multi-scale structure, Biomed.

Introduction EDM is a non-conventional and non-contact machining process with small macro-processing force, and it erodes electrode material by the combined effects of the spark discharge such as electric force, magnetic, thermal force, fluid dynamics, electrochemistry and colloid chemistry[1,2].
The structure of EDM surface micro-topography will not only affect the functional performances about the friction and wear of the contact surface, the contact stiffness, fatigue strength, sealing, corrosion resistance, thermal and electrical conductivity, but also have a great impact on the overall performance of the assembly equipment, useful life, vibration and noises[3-5].
（a）Modification layer structure （b）White layer Fig.5 Modification layer of EDM surface The lower under the white layer is the heat-affected layer.

RTA equipment and furnace are effective in Si and Ge recrystallization, however, these common annealing methods take long time and are likely to cause a rise in energy and cost [1] or result in too high annealing temperature to transfer the structure to glass or flexible substrate which cannot withstand high temperature.
It can be learned that the Rs for microwave at 1P and 2P is greater than that before annealing and Rs rose with rising MWA power and time because the microwave energy needed to overcome the activation barrier and the micro structure changed [7]; meanwhile, after the Rs reaching the highest value at 3P-100s, it started to drop at 3P-200s after the activation energy barrier was overcome and the lattice rearranged.
Howari, Journal of Physics and Chemistry of Solids, 70 (2009) , 1337–1343

TEM micrograph confirms that the spherical microcapsules possess core-shell structure.
This result, together with the SEM and TEM observation, verifies the formation of microcapsules with core-shell structure. 5µm c a 10µm d 5µm b 50µm a b a b Fig. 2 The thermal gravity curves of P1 and micro-p1 (a), P2 and micro-P2 (b) DSC curves of the microcapsules.
Iler: The Chemistry of Silica, Introduction, John Wiley & Sons, Inc. (1979)

This is due to the cross-linking reactions between the abundant oxygenated functional groups in the macromolecular structure of lignite, and it was found that the coss-linking reactions can be started as low as 200℃[1].
The chemical formula is as follow: CaSO4+4CO→4CaS+4CO2 The peak at about 25°corresponds to the 002 reflection of carbon due to the stacking structure of aromatic layers.
Acknowledgements This work was partially supported by Major Program of Natural Science Foundation of Inner Mongolia, Talented Person Foundation of Inner Mongolia and Program Foundation for Coal Chemistry Preponderant Discipline of IMUT.

Demetrescu 1 1 University "Politechnica" of Bucharest, Faculty of Applied Chemistry and Materials Science, Polizu no 1-7, 011061, Bucharest, Romania 2 University of Bucharest, Faculty of Biology, Spl.
Introduction Ti-Al-Nb alloy shows similar characteristics as TiAlV especially the effect to stabilize β phase in the Ti- binary systems, which is necessary to provide α + β two-phase structure to the ternary alloys and could be instead of the alloy with vanadium with is more toxic [1-3].
The structure of electrochemically deposition was identified with Fourier transform infrared spectroscopy (FTIR) and the surface morphology and composition were identified using environmental scanning electron microscopy (ESEM) with an FEI/Phillips XL30 ESEM.

Analysis of the system response contain information about the interface, its structure, and the reactions taking place there [4].
Without the HT the apatite nuclei formed on the titanium surface are larger (Fig. 1c) than those formed on the surface submitted to HT, resulting in a coarser structure.
Electroanalytical Chemistry Vol 568 (2004), p. 115

Mertens1 and Marc Heyns1,2 1imec vzw, Kapeldreef 75, B-3001 Leuven, Belgium 2Dept. of Metallurgy and Materials Engineering, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium 4Dept. of Chemistry, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium atae-gon.kim@imec.be Keywords: Sidewall metrology, Low-k, Post-etch residue cleaning, Chemical force microscope.
The phase changes at different locations on the structures were examined as shown in Fig. 7 (c) and large hydrophobic regions for the cleaned sample with Chem A were observed.
(c) Summary of the phase changes at different location on the structures (a) and (b) was summarized.

Chemical Attachment of Functionalized Single-Walled Carbon Nanotubes on Self-Assembled Monolayer Moonhee Lee1, Sung-Kyoung Kim 1, Heeyoung Choi1, Ha-Jin Lee 2, Sun Young Koo2 and Haiwon Lee1* 1 Department of Chemistry, Hanyang University, Seoul 133-791, Korea 2 Korea Basic Science Institute Jeonju Center, Jeonju 561-756, Korea E-mail address: haiwon@hanyang.ac.kr Keywords: SWNTs, self-assembled monolayer, AFM anodization lithography Abstract.
In order to make this structure, we have used AFM anodization lithography.
FT-IR and AFM have been used to characterize the formation of the structure of attached SWNTs on modified templates.