Search results

Introduction Because of the Palladium alloy membrane diffusion process has the unique purification performance, it was better to compared for other physical method or chemistry method, and it was the main methods to prepare for High Purity Hydrogen and extract the hydrogen isotope, purify the separation at present [1].
Tube wall stress condition tube design parameter, mould structure size, mould rotation speed and tube nose pulling force influence.
But the tube design parameter is passed the hydrogen performance the restraint, the mould structure size also with difficulty changes, tube nose pulling force size direct correlation and mould rotation speed, therefore, the thin wall narrow tube circles in the system process control essence is controls the electrical machinery rotational speed to control the mould the rotation speed, from mechanics angle considered is controls the tube nose pulling force the size.

Fig.1 Structure of three-layer BP networks Table 1 Test data, predicted results and errors SN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 N (g) 8 10 12 14 16 20 25 25 25 25 25 25 25 25 25 Mg(M) × 10 -2 6 6 6 6 6 6 6 2 6 5 3 6 6 6 6 Al (M) ×10 -2 2 2 2 2 2 2 3 6 18 6 6 12 6 4.3 8.4 Notes: SN: Sample No.; N: NaOH; Mg: Mg 2+；Al: Al3+；g: gram; M:mol/L.
The 3-2-1 structure BP net is adopted (see Fig.1).
Guangxi Chemistry Industry (in Chinese) Vol.28 (1999), pp.29

Includes magnetically soft iron-based core particles having a bulk density of 3.2-3.7 g/ml, and the surface of the core particles is provided with an inorganic phosphorus-based insulation layer and at least one organometallic layer of an organometallic compound of the proposed structure located outside the first inorganic phosphorus-based insulation layer.
Structure of nanofiber samples under a microscope Studies have shown that nickel catalysts have a greater efficiency in the process, more than 64%.
Slivinskiy, Fundamentals of Chemistry and Technology of Monomers, Nauka, Moscow, 2002

The results of orthogonal experiment A B C D DL /% EE /% DL /%+ EE /% 1 1 1 1 1 45.7 54.6 100.3 2 1 2 2 2 63.5 65.3 128.8 3 1 3 3 3 58.4 62.6 121.0 4 2 1 2 3 49.1 51.5 100.6 5 2 2 3 1 53.2 60.1 113.3 6 2 3 1 2 68.7 69.7 138.4 7 3 1 3 2 52.4 46.2 98.6 8 3 2 1 3 65.5 66.7 132.2 9 3 3 2 1 69.3 59.9 129.2 k1 116.700 99.833 123.633 114.267 k2 117.433 124.767 119.533 121.933 k3 120.000 129.533 110.967 117.933 Range 3.300 29.700 12.666 7.666 standard deviation 0.31 0.73 Characterization of microcapsules The structure morphology and entire distribution of the BPF in microcapsules with 5 layers were characterized using scanning electron microscopy and confocal laser scanning microscope in Fig. 1.
No drug dissolution was found but a simple and dispersed structure of the microcapsules was formed.
Deng: submitted to Analytical and Bioanalytical Chemistry. (2002)

When the film after dried at 350 o C was cooled slowly to room temperature, no porous structure could be obtained.
The porous buffer layer was not filled with the coating solution and was not densified either so that the porous structure was maintained during the subsequent heat treatment.
The cooling speed of the drying process and combination of chemistry of the solution yielded two different characteristic morphologies.

Introduction Various kinds of thermosetting polyimide have been attempted to apply to composite matrix or adhesive for aircraft structures and turbofan engine components.
Because of the catenation from the dianhydride, the TriA-PI polyimides have highly irregular structures resulting at a lower melting temperature, and cured polymer exhibits a higher Tg compared with PETI-5.
Chemistry and properties of imide oligomers end-capped with phenylethynylphtalic anhydrides.

Effect of Li Substitution in MgO Nanostructured on Band Gap Energy via Combustion Synthesis Method Nor Fadilah Chayed1,2*, Nurhanna Badar2, Kelimah Elong1,2 and Norlida Kamarulzaman1,3 1School of Chemistry and Environment, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia 2Centre for Nanomaterials Research, Institute of Science, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia 3School of Physics and Materials, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia *norfadilah6231@uitm.edu.my Keywords: MgO, Mg0.9Li0.2O, substitution, band gap Abstract.
This work will focus on the substitutional doping whereby the dopant element was introduced and replace the position of cation without changing the crystal structure.
It can be clearly observed that all the fingerprint peaks of (111), (200), (220), (311) and (222) are easily identifiable and matched to the MgO cubic structure (ICDD No. 03-065-0476).

Introduction Graphene is a two-dimensional material consist of carbon atoms that formed a hexagonal structure [1].
The intersection gives mean that the ablation of rGO creates a value of band gap in its electronic structure and transforms it to become a semiconductor.
Ruoff, Stable aqueous dispersions of graphitic nanoplatelets via the reduction of exfoliated graphite oxide in the presence of poly (sodium 4-styrenesulfonate), Journal of Materials Chemistry. 16.2 (2006) 155-158

Fig. 1a shows the pad pearlite-ferritic structure, and Fig. 1b clearly shows graphite lamellar form.
Kharlamov, Studies of the structure and chemical composition of the surface of silicon carbide and corundum in the interaction with metals, Physics, chemistry and mechanics of tribosystems, Interuniversity collection of scientific papers. 12 (2015) 77-81

In a very long time, there maintains the coexistence situation of cooperation and opposition between partners.Based on analyzing the evolutionary game model of knowledge transferring behavior, we know that long-term balance structure of cooperation behavior evolvement between cooperative partners reflect cooperation trend, may be cooperation completely or not.
The lower the initial cost paying for cooperation is, the stronger wish to cooperation the partners have, and the better chemistry between the partners have.
It means the higher the professional knowledge structure and the knowledge management capacity, the more favor for choosing knowledge transferring stratgy for partners.