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Novel Arrangement of Rough Tubes for Heat Flux Improvement Farshad Farahbod1,a, Sara Farahmand2,b, Farzaneh Farahbod3,c 1Department of Chemistry, Firoozabad Branch, Islamic Azad University, Firoozabad, Fars, Iran 2Islamic Azad University, Marvdasht Branch, Iran 3Islamic Azad University, Sepidan, Iran amf_fche@iauf.ac.ir, bSfarahmand2005@gmail.com, cMsf_fce@yahoo.com Keywords: Energy and cost saving; FS3D rough tube; Heat transfer; Set up.
Several enhanced tubes have been tested by using hydrocarbons, including low-fin tubes and re-entrant cavities structured tubes [3].

The properties that make borate glasses candidate for many different applications are related to their molecular level structure.
Dalley: Optical Materials 28(2006) 621-625 [15] P.Y.Shih: Materials Chemistry and Physics 84 (2004) 151-156

While for synthetic polymers such properties can be suitably modified and tailored during their synthesis, in the case of natural polymers, this can only be achieved changing their surface chemical structure or morphology.
Lower: Chemicals and chemistry in the production and processing of silk (The Silk Association of Great Britain Ltd., Halstead UK 1990)

INTRODUCTION The particles involved in cold spray process are typically micro‐structure (approximately 15‐50 μm).
A potential advantage of this process over thermal spray is the ability to generate dense coatings while retaining their feedstock material chemistry and phase composition.

In our experiments, we did not find any change of the surface structure that can be assigned to an increasing metal concentration in acidic texture bath.
Journal of Physical Chemistry B, 2006. 110(23): p. 11377-82.

Combined with electromagnetics, hydrodynamics and chemistry, MRF has been applied in optical machining.
The main reason of it comes from the higher line speed at the rim of workpiece with the increasing of displacement disturbs the flowing of MR fluid, the theoretical MR fluid polishing structure is broken, polishing abrasive could formally float on the surface of MR fluid, so the material removal rate decreases.

High Speed Deformation of Ultrafine Grained TWIP Steel Rintaro Ueji1, a, Kenji Harada1,b, Noriyuki Tsuchida2,c and Kazutoshi Kunishige1,d 1 Department of Advanced Materials Science, Faculty of Engineering, Kagawa University, 2217-20, Hayashi-cho, Takamatsu, Kagawa, 761-0396, Japan. 2 Department of Materials Science and Chemistry, School of Engineering, University of Hyogo, 2167, Shosha, Himeji, Hyogo, 671-2280, Japan a ueji@eng.kagawa-u.ac.jp, bs06g565@stmail.eng.kagawa-u.ac.jp, ctsuchida@eng.u-hyogo.ac.jp, d kazku@eng.kagawa-u.ac.jp Keywords: Twinning induced plasticity (TWIP) steel, ultrafine grains, high speed deformation, Hall-Petch relationship.
Equiaxed ultrafine grained structure consisting of a large fraction of high-angle boundaries is successfully obtained by cold-rolling to a reduction of 83% and subsequent annealing at a warm temperature (650 o C).

Using the method of quantum-and-chemical calculations we have previously shown[5,6] that sorption of ions in peat can be carried out as a result of formation of hydrogen bonds in water molecules included in the aqua-complex of hydrated ions, with oxygen atoms present in functional groups of peat and its structure.
Moscow: Chemistry, (1978) 172-179.

Photochromism and Fluorescent Switch Material of a Novel Diarylethene bearing phenanthrene Unit Xue Li, Hui Li, Congbin Fan, Shiqiang Cui* Jiangxi Key Lab of Organic Chemistry Jiangxi Science & Technology Normal University, Nanchang 330013, China cuisq@sohu.com Keywords: Diarylethene; photochromism; fluorescence; optical recording Abstract.
The structures of diarylethenes 1o were confirmed by 1H NMR (400 MHz, CDCl3, TMS): δ 2.36 (s, 3H, -CH3), 2.38 (s, 6H, -CH3), 7.04 (s, 1H, thiophene-H), 7.25 (s, 1H, thiophene-H), 7.75 (s, 1H, phenanthrene-H ), 7.68-7.69 (t, 2H, phenanthrene-H), 7.86-7.88 (t, 2H, phenanthrene-H), 7.98-8.00 (d, 2H, phenanthrene-H), 8.74-8.76 (d, 2H, phenanthrene-H).

Tersoff, Modeling Solid-state Chemistry: Interatomic Potentials for Mmulticomponent Systems, Physical Review B. 39(1989) 5566-5568
Hamilton, Dislocation Nucleation and Defect Structure During Surface Indentation.