Search results

It has been widely used in the field of agricultural products as well as in food chemistry [2].
As the near infrared spectrum of the medicine gives the most information about the compound's structure that we can use these data to analyze the common feature of the herbs and look for their similarities.
Authors are thankful to the anonymous referees for the constructive comments in enhancing the content and structure of the manuscript..

Synthesis and Properties of 1-[2-trifluoromethylphenyl]-2-[2-methyl-5-(3,5-difluorophenyl)-3-thienyl] perfluorocyclopentene Guanming Liao, Shouzhi Pu* and Zhiyuan Sun Jiangxi Key Lab of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China pushouzhi@tsinghua.org.cn Keywords: photochromism; diarylethene; fluorescence Abstract.
Among wide variety of synthetic photochromic molecules, those having hexatriene-cyclohexadiene type structure such as diarylethenes have been extensively studied due to their thermal stability in both colored and bleached states and relatively high photochromic reactivity in solutions and even in solid states [2,3,4].
The structure of compound 1o was confirmed by 1H NMR. 1H NMR (400 MHz, CDCl3): δ 2.21 (s, 3H, –CH3), 6.69–6.73 (m, 1H), 6.91–6.98 (m, 3H), 7.46 (d, 1H), 7.60–7.62 (m, 1H), 7.66–7.73 (m, 1H).

A Novel charged iridium(III) complex for amine sensor application Kattaliya Mothajit b, Kittiya Wongkhan c and Rukkiat Jitchati a * Center for Organic Electronic and Alternative Energy (COEA), Department of Chemistry, Faculty of Science, Ubon Ratchathani University, Warinchumrap, Ubon Ratchathani Province, 34190, Thailand rukkiat_j@hotmail.coma, kattaliya_fern@hotmail.comb, kitt_w_2000@yahoo.ie c Keywords: Amine, bipyridine, iridium(III), sensor Abstract.
It is well known that the photophysical properties of iridium(III) complexes are dependent on the chemical structures of ancillary ligands [4].
Zhang, A thiocyanate-bridging dimeric cyclometalated iridium(III) complex: Synthesis, structure and phosphorescence behaviours towards metal ions, Inorg.

Feather degradation and keratinase production by Stenotrophomonas maltophilia DHHJ Xiao-Qian Wu1,a, Li Chen1,b, Zhang-Jun Cao2,c, Mei-Hua Zhou1,d 1College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China 2College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China axqw@dhu.edu.cn, bchenli@mail.dhu.edu.cn, czhjcao@dhu.edu.cn, dmhzhou@dhu.edu.cn Keywords: Stenotrophomonas maltophilia DHHJ; feather; keratinase production; biodegradation Abstract.
Feathers are degraded very slowly in nature because of keratinous stable structure.
The dried feathers were then cut into about 2 cm sized structures with scissors.

In psychological respects, designing is a creative activity that calls for a sound grounding in mathematics, physics, chemistry, mechanics, thermodynamics, hydrodynamics, electrical engineering, production engineering, material technology, machine elements and design theory, as well as knowledge and experience of the domain of interest[4].
Whereas brainstorming and checklist are ways to generate ideas; mind mapping serves as a tool for structuring ideas.
Mind maps are hierarchically structured and produced.

Rozhin3,f 1 Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska str., 02660 Kyiv, Ukraine 2 Institute of Physics, National Academy of Sciences of Ukraine, 46 Nauki Ave., 03680 Kyiv, Ukraine 3 Aston University, Aston Triangle, Birmingham, B4 7ET, UK a shandura@bigmir.net, b kovtun@ioch.kiev.ua, c yupiryat@iop.kiev.ua, d lutsyk@univ.kiev.ua, e avsky@iop.kiev.ua, f a.rozhin@aston.ac.uk  Keywords: fluorescent sensor, dioxaborine dyes, ammonia and aliphatic amines detection.
Fig. 2 (right) Molecular structure of the dye 3; (left) PL changes for the dye 3 (1) in 5 x 10-6 mol/l water solution after the admixture of amine in the ratio of 1:100 hereupon (2), in 20 min (3) in 40 min (4), in 120 min (4) Thus, the dye is sensitive to amines at their concentration ca. 10-4 mol/l being equivalent to 1.7 mg/l for ammonia.
Fig. 3 (right) Molecular structure of the dye 4; (left) PL spectra for the dye 4 (1 - blue, СМ = 1×10-6) in 50% aqueous ethanol solution in 10 min after admixture of amine with various concentrations (2 - green, СМ = 4×10-6; 3 - black, СМ = 6×10-6, 4 - red, СМ = 1×10-5).

In this article, Al-based alloy coating on ZM5 magnesium alloy was prepared by SPD; And electrochemical characteristics of the coating were analyzed systematically, which be of great assiatance to protect magnesium alloy structure exposed to atmosphere.
The increasing impedance modulus educed that dense oxidation film or corrosion products film on the coating surface had been formed and isolated effectively corrosion medium from the substrate, which would play significant role to protect the magnesium alloy structure in engineering application.
China, (2008), p. 334 [2] CHEN Zhenhua: Magnesium Alloy(Chemical Industrial Press, Beijing 2004) [3] ZHANG Yanhao: Chemistry Manual(Shanghai Jiaotong University Press, Shanghai 2000) [4] Hélène Ardelean, Isabelle Frateur and Philippe Marcus: Corrosion Science, Vol. 50 (2008), p. 1907 [5] Isler Duygu, Birol Yucel and Urgen Mustafa: International Journal of Material Forming, Vol. 3 (2010), p. 747 [6] Yu Kyong Kim, Man Hyung Lee and Prasad Madhav Nepane: Advanced Materials Research, (2008), p. 1290 [7] Zeng Rongchang, Chen Jun and Kuang Jun: Rare Metals, Vol. 29 (2010), p. 193 [8] Wu Li-Ping, Zhao Jing-Jing and Xie Yong-Ping: Transactions of Nonferrous Metals Society of China.

Properties Study of a New Perfluorocyclopentenes Bearing Fluorene Haichang Ding, Chunhong Zheng, Gang Liu* Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, P.
Fluorene has attracted people’s attention, compounds having a rigid planar biphenyl structure, owing to these compounds bearing wide energy gap and high luminous efficiency.
The structure of compound 1o was confirmed by 1H NMR. 1H NMR (400 MHz, CDCl3): δ 2.05 (s, 6H, -CH3), 2.33 (s, 3H, -CH3), 7.11(s, 1H, thienyl-H), 7.21(s, 1H, fluorene yl-H), 7.31-7.35(m, 4H, fluoreneyl-H), 7.36-7.38(m, 2H, phenyl-H), 7.59-7.66(m, 2H, phenyl-H), 7.67-7.78(m, 2H, fluoreneyl-H).

Fredrik Karlsson, Urban Forsberg, and Erik Janzén Department of Physics, Chemistry and Biology (IFM), Linköping University, S-581 83, Linköping, Sweden
For the optical behavior of any semiconductor structure, the transport and capture of the charge carriers into e.g a localization potential or a QD, prior to the exciton formation and emission is essential.
For the case of an InGaN layer on a nearly complete pyramid, it is unlikely that sharp emission lines will be detected due to the electric fields occuring in a structure with strong piezoelectric fields.

Both samples show similar structural features which suggests that the heat treatment did not influence the evolution of the structure in a microstructural level.
Bernier: Materials and Structures Vol. 29 (1996), p. 233
Taylor: Cement Chemistry.