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Combined ultrasonic and microwave method is efficient and safe, it is widely applied in food industry, biomedicine, paper making industry, environmental science, chemistry and chemical industry.
,Ltd); c) PdCl2(Aladdin Chemistry Co.
Chemistry and Industry of Forest Products, 2009, 29: 255~259
Effects of different varieties of Maca(Lepidium meyenii) on bone structure in ovariectomized rats[J].

It will become a great challenge for future green chemistry if the rich hemi-cellulose would be converted into high value-added chemical products to replace depleting petrochemical products.
Meanwhile the lignin structure has changed under acidic high temperature condition, the change hampers the dissolution of pentosan, which can be proved from the reduce of small holes of residual bamboo chips significantly.
The preparation conditions of APMP pulp are as follows: 1) Process: bamboo chip soaking for 24h under normal temperature pre-steaming in 30min, and the temperature at 95-100 ˚C the first step of screw extruding the first step of chemistry dipping the second step of screw extruding the second step of chemistry dipping three-section refining acidifying washing eliminating potential screening good pulp 2) Craft parameters are shown in table 5.

The chemical shifts are reported in δ (ppm) relative to tetramethylsilane as internal standard. 2.2 Chemistry.
The structures of these novel targets and all of intermediates were confirmed by 1H NMR.
Bioorganic & Medicinal Chemistry.
Department of Chemistry.

SEM analysis revealed that acid treatment improved the surface structure and porosity of RHA, potentially increasing its surface area.
Appreciation is also extended to the Royal Society of Chemistry (RSC) for the Researcher Development and Travel Grant (ID: D24-7377661160).
Journal of Industrial and Engineering Chemistry, 110, 1-14
Rasayan Journal of Chemistry, 14(1), 550-560.

Ananda Kumar3, c* 1Department of Chemistry, St.
Joseph’s College of Engineering, Chennai 600119, India 2,3Department of Chemistry, Anna University, Chennai 600025, India asaranpava@gmail.com, bduraibb@gmail.com, csri_anand_72@yahoo.com Keywords: Synthesis, Nano-ZnO, nano-hybrid epoxy coatings, Corrosion Resistant, Bio-Fouling Abstract.
Six different coating systems were used to protect steel structures against corrosion and biofouling.
Acknowledgment Instrumentation facility provided under FIST-DST and DRS-UGC to Department of Chemistry, Anna University, Chennai are gratefully acknowledged.

A blue organic light-emitting diode (OLED) with a double hole-transporting (DHT) structure has been developed.
Experimental The structure is ITO/ NPB (40 nm)/ CBP (X nm)/ DPVBi (15 nm)/ CBP (10-X nm)/ Alq3 (20 nm)/ LiF (0.5 nm)/ Al (100 nm), as shown in Figure 1.
However, the device of LCBP with 8 nm and RCBP with 2 nm, as the quantum-well structure, gets a better balanced accumulation of electrons and holes in the EML.
Conclusions In summary, a blue organic light-emitting diode (BOLED) with a double hole-transporting (DHT) structure has been developed.
Su, Journal of Physics and chemistry of Solids 70 (2009) 765

Study on the stress distribution of the piston rod fillet based on the nonlinear finite element method Xiaoyu wang School of Chemistry and Environmental Engineering, Jianghan University, Wuhan 430056, China Email：396694928@qq.com Keywords: Nonlinear finite element, stress concentration, fillet radius Abstract.
The piston rod is an important part of rapping device which is used to transfer energy, its structure and geometric size plays an important role to the structure and properties of rapping device, it is prior to consider when components of rapping device are designed.
In three-dimensional modeling process, suppose that the forces acting upon the piston rod were uniform, according to the structure of the piston rod and bearing conditions, to simplify the piston rod into the axi symmetric structure, so the model when selecting a quarter model was analyzed, it can greatly reduce unit number and the degrees of freedom, save the solving time[3].In addition, the fillet of the piston rod was one of the important factors leading to fatigue fracture, so the fillet can't be negligible when modeling.

This paper provides an extension of the method developed in [5] by investigating the effect of replacing the linear OBF model with OBFARX structure.
Among various linear model structures, ARX appears to be a popular choice for system identification purposes.
As a consequence, the length of the data required to keep the variance errors low while using the conventional ARX structure is significantly large.
RMSE values for extrapolation data set Case Study Parallel OBF-NN Parallel OBFARX-NN RMSE Value 0.0076 0.01821 Fig. 2 Measured vs predicted values of OBFARX-NN model for 9% decrease in w1 below its original training range Summary In this paper, a nonlinear model based on a parallel integrated structure of linear OBFARX and nonlinear NN has been developed.
Patwardhan, Industrial & Engineering Chemistry Research, 48(19), 8966-8979 [7] Lemma Dendena Tufa 2007, Control Relevant System Identification Using Orthonormal Basis Filter Models, Ph.D.

Respectively, they contact with the sub-transition of structure in polymer matrix, the glass transition and the structure transition from rubbery state to viscous flow state in polymer matrix.
As compared with pure epoxy, the differences in three structure transition temperature increase from high temperature to low temperature.
For Epoxy and Epoxy/Rectorite nanocomposite, being the same with the variation of τ3 three structure transition temperatures (Tf, Tg, and Tγ) are observed.
Study of the effect of electric field on positron annihilation parameters in polymers, Radiation Physics and Chemistry, (2003), V68(3-4), p 449 [5] Y.C.

Activated carbon is generally cheaper than other carriers and has been reported as a suitable adsorbent for desulfurization [6,7].what is more, activated carbon has high stability, large surface area, abundant micropore structure, and it exhibit a wider pore size distribution, thus steric-effects may be avoided for the adsorption of bulky sulfur molecules.
Results and discussion BET measurements Table 2 Structural characteristics of AC by different modification methods Samples BET area (m2/g) Vmeso (mL/g) Aperture(nm) AC(unmodified) 1146.56 1.72 6.03 AC 876.37 0.44 2.02 AC-Pd 759.98 0.39 2.01 AC-Pd-Ni 728.03 0.37 2.01 Table 2 summarizes the Structural characteristics of the samples, as determined from BET analysis, The surface area and pore volume of unmodified AC is the largest one, because the porous structure is its own unique nature of AC.
Nitrogen adsorption isotherms measurements The nitrogen adsorption isotherms of the AC samples are shown in Figure 1, and they indicate that the presence of the larger clusters within the porous structure of the carbons is likely to lead to pore blockage and a decrease in adsorbed nitrogen [8].
The surface and pore structure of AC, which showed in Fig 2(b) are more clean and clear than that showed in Fig 2(a).
Forum Vol. 24(2010), p.3436-3442 [9] Yu’an Huang, Shenghua Hu and Songlin Zuo: Journal of Materials Chemistry.