Search results

To evaluate the safety assessment of structure containing defects and reduce the risk of elbows failure, engineering flaw assessment methods, such as the R6 [1], is often adopted.
Rb M D Cracked Section Intrados Extrados t M Fig.1 Schematic of elbow with part-through wall axial crack at intrados, extrados or crown subjected to opening bending moment. 2c a In practice, the leakage and break failure of the plants is forbidden absolutely in petroleum and chemistry fields, since it often induces combustion and burst accident and causes huge economic loss.

Study on glass transition temperature of polyvinylamine hydrochloride Hongchi Zhaoa, Qi Lib, Libin Baic and Fan Huangd College of Chemistry and Environmental Science, Hebei University, Baoding 071002, Hebei, P.
The chemical structures and thermal stabilities of the PAM and PVAm·HCl were studied by Fourier transform infrared spectrometer, nuclear magnetic resonance spectrometer, X-ray diffractmeter and thermogravimetric analyzer[12].

The structure of photocatalysts was characterized by X-ray diffractometer (Bruker D8) equipped with a Cu Ka radiation source (wavelength 1.5406Å).
Vol. 69 (2008), p. 383 [15] Information on http://webbook.nist.gov/chemistry/

The biomass energy comes from biomass resource, it is also a solar energy stored in the living creature with a kind of chemistry energy form.
Recently, carbon nanotubes (CNTs ) with a new structure supported noble metal catalysts show high activity for catalytic hydrogenation [12,13].

., and Dupuis, V. (1991) European Journal of Solid State Inorganic Chemistry. 28(303): 343 [5] Stoch, A., Jastrzebski, W., Brozek, A. et al. (1999) Journal of Molecular Structure. 511-512: 735-740

Sunkara, Synthesis of sub-20-nm-sized bismuth 1-D structures using gallium-bismuth systems, J.
Aoki, Electroorganic chemistry.

The product was confirmed by IR and 1HNMR data for the structure of β-methyl-glutaric acid monomethyl ester.
Oxidation of benzyl alcohol under a synergism of phase tranafer catalyis and heteropolyacids[J].Mol Catal A Chem.2001,172(1/2):140-143 [4] Pope M T,Muller A.Polyoxm et.al.ate Chemistry:Anold field and new dimeionsinseveral disciplines [J].Angew Chem Int EdEngl,2001,30:34-36 [5] Kennedy B.

Production of Paclitaxel Loaded PLA-lecithin Ultrasound Contrast Agents Xiangrui Yang1, Shichao Wu1, Zhengqing Hou2,a, Yange Wang2, Qian Jiang3,b* 1Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, China 2Research Center of Biomedical Engineering of Xiamen University, Xiamen, 361005, China 3 Air Force General Hospital, PLA, Beijing 100142, China a E-mail: houzhenqing@xmu.edu.cn , b E-mail: jiangqian8185@126.com Keywords: Ultrasound contrast agent; Lecithin-poly lactid (PLA); Paclitaxel; Ultrasound imaging Abstract.
The images with bubbles injected apparently displayed the structures of acute cardiac chamber and liver (b and d) compared the images without bubbles(a and c).

Because its chemical structure is stable, the wastewater is belongs to poisonous and hard-degradation.
Luo: Chemistry & Bioengineering, Vol. 27 (2010.), p. 28

Moreover, increasing temperature may generate a swelling effect within the internal structure of the AC enabling large molecule to penetrate further [11].
Freundlich: Journal of Physical Chemistry Vol. 57 (1906), p. 385-470