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51.
Eiji Fujimori Seiko Iwata Kazuaki Minamoto Kyue-Hyung Lee Akihide Itoh Koichi Chiba Hiroki Haraguchi 《Analytical sciences》2004,20(1):189-194
The partitionings of major-to-ultratrace elements between industrial waste incineration fly ash (IWIFA) and industrial waste incineration bottom ash (IWIBA) in industrial waste incinerators were investigated by measuring their concentration distributions, where the incineration ash samples were collected from three different types of industrial waste incinerators. The concentrations of the elements in the incineration ash samples were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES) and inductively coupled plasma mass spectrometry (ICP-MS). As a result, ca. 40 elements in the concentration range from mg g(-1) to sub-microg g(-1) could be determined in both IWIFA and IWIBA samples. The concentration ratios of CF/CB (CF, concentration in fly ash; CB, concentration in bottom ash) for analyte elements were used to evaluate the partitionings of the elements between fly and bottom ashes. Then, the correlations between the CF/CB values of the elements and the dissociation energies of their monoxides were examined to evaluate the kinetic behaviors of the elements during the incineration processes. It was found that lithophile and siderophile elements, which have a large affinity with oxygen, were almost equally distributed between fly and bottom ashes, regardless of the dissociation energies of their monoxides. On the other hand, chalcophile elements with rather large volatility provided different behaviors; the elements with the smaller dissociation energies of monoxides were more partitioned in fly ashes than those with the larger ones. 相似文献
52.
Morimoto K Tamura K Hatta T Nemoto S Echigo T Ye J Yamada H 《Journal of colloid and interface science》2012,368(1):578-583
We report the preparation of organic-brucite (BR) hybrids using harmless sugar alcohols (xylitol, XYL, and sorbitol, SOR). Since XYL and SOR are solid materials at room temperature, the hybridization was investigated by comparing two separate methods, hydrothermal treatment and melt mixing. BR-sugar alcohol hybrids were successfully prepared by a melt intercalation method at 175 °C. X-ray diffraction and Fourier transform infrared spectroscopy analyses indicated that organic molecules were intercalated into the brucite layers, overcoming the barrier of hydroxyl bonds between the BR layers. Moreover, X-ray photoelectron spectroscopy and thermal analyses showed that the intercalated materials at 175 °C resulted in the formation of covalent Mg-O-C bond linkages on the interlayer surface of BR. 相似文献
53.
Crosstalk is one of the most important factors affecting the image quality of polarization switching three-dimensional (3D) projectors. The variation in the phase difference of a polarization switch owing to dispersion degrades crosstalk performance. We propose a novel multistage circular polarization switch comprising liquid crystal devices using a ferroelectric liquid crystal (FLC) in-plane fast switch and a thick nematic liquid crystal (NLC) retarder. In this paper, we present a proof-of-concept model of a 3D laser pico projector using a scanning MEMS head in combination with the polarization switch. We also evaluate the crosstalk and 3D performance of the projector. 相似文献
54.
Seiko Nan'ya Hirofumi Ishida Kiyoshi Kanie Noriyuki Ito Yasuo Butsugan 《Journal of heterocyclic chemistry》1995,32(4):1299-1302
o-Monobromoacetylacylphenones, 3a and 3b reacted with hydroxylamine or hydrazine hydrate to produce heterocycles, 2,3-benzoxazine or phthalazine derivatives. The reaction of bromoacetyl group of 3a and 3b with several thioamides afforded thiazole derivatives in high yields. Whereas o-dibromoacetyl-benzophenoe 2a reacted with aniline or cyclohexylamine to produce non-heterocycles, 2-substituted-iminophenylindanones and the mechanism for the formation of these non-heterocycles is proposed. 相似文献
55.
2-Bromoinden-1-ones 2 were condensed with 6-substituted 3-aminopyridine-2(1H)-thiones to produce a new type of 4-azaindeno[2,1-b][1,4]benzothiazine derivatives 3 . Substituted 6-phenylindeno[2,1-b][1,4]benzothiazines 4 were also prepared by reacting 2-bromo-5-methoxy- and 2,6-dibromo-5-methoxyinden-1-ones with o-aminobenzenethiol. 相似文献
56.
Seiko Nan'Ya Kaname Katsuraya Yoshio Ueno Etur Maekawa 《Journal of heterocyclic chemistry》1988,25(3):1051-1052
The effects of substituents on the condensation of o-aminobenzenethiol derivatives with 2H-isoindole- and 2H-indazole-4,7-dione derivatives were studied by competitive reactions. 相似文献
57.
Seiko Nan'ya Etur Maekawa Wen-Bing Kang Yoshio Ueno 《Journal of heterocyclic chemistry》1986,23(6):1697-1700
The 1,6-disubstituted- and 4,6-disubstituted-11-aza-5H-benzo[a]phenoxazin-5-one as well as 6-substituted-11-aza-5H-pyrido[a]phenoxazin-5-one derivatives were prepared by the condensation of 2-amino-3-hydroxypyridine with 5-substituted-2,3-dihalogeno-1,4-naphthoquinones and 6,7-dibromo-5,8-quinolinequinone respectively. The resulting compounds were subjected to reduction, acetylation, dehalogenation and reaction with aniline. 相似文献
58.
Seiko Nan'Ya Toshiaki Tange Etur
Maekawa Yoshio Ueno 《Journal of heterocyclic chemistry》1986,23(5):1267-1271
From 2,3,4-Trisubstituted oxazolium-5-oxides and 2-methyl-, 2-phenyl- or 2-bromo-1,4-benzoquinone 1,2,3,5-tetrasubstituted 2H-isoindole-4,7-dione derivatives were prepared. These compounds were condensed with 2-aminobenzenethiol to produce 1,2,3-trisubstituted or 1,2,3,5-tetrasubstituted 4H-pyrrolo[3,4-a]phenothiazin-4-one derivatives. In the case of 1,2,3-trisubstituted 5-methyl-2H-isoindole-4,7-dione 1,2,3,5-tetrasubstituted 7-(2-mercaptophenyl)imino-2H-isoindole-4-one was obtained instead of the expected phenothiazinones. 相似文献
59.
Yoshio Ueno Seiko Nan'ya Hitoshi Hayakawa Wen-Bing Kang Eturô Maekawa 《Monatshefte für Chemie / Chemical Monthly》1987,118(3):381-385
Several substituted 6-anilino-5H-benzo[a]phenothiazin-5-one derivatives were prepared by condensation of substituted 1,4-naphthoquinones with 2-aminobenzenethiol in pyridine. The reduction and acetylation of the resulting compounds were also investigated.
Synthese einiger 5H-Benzo[a]phenothiazin-5-on-Derivate
Zusammenfassung Es wurden mittels Kondensation substituierter 1,4-Naphthochinone mit 2-Aminothiophenol in Pyridin einige substituierte 6-Anilino-5H-benzo[a]phenothiazin-5-one dargestellt. Die Reduktion und Acetylierung der resultierenden Verbindungen wurde ebenfalls untersucht.相似文献
60.
Takashi Yasui Yuki Kashihara Fumiko Miyake Seiko Sugitani Hiromichi Yamada Akio Yuchi 《Analytical sciences》2008,24(8):993-997
The interactions between Cu(II) complexes with heterocyclic azo compounds and several anions were studied by equilibrium analysis of ion-pair extraction, RP-HPLC of metal complexes, and ion chromatography of anions on an ODS column coated with Cu(II) complexes of the long alkyl derivatives. Both ion-pair extraction and HPLC studies demonstrated that a dicationic complex with 8-(3,5-dibromo-2-pyridylazo)-5-aminoquinoline interacted with anions stronger than a monocationic complex with 2-(2-pyridylazo)methylphenol. Anions were more retained on the column coated with dicationic Cu(II) complex. Such differences were quantitatively ascribed to the first ion-pair formation of the dicationic complex giving a monocationic species. 相似文献