Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Talc added to PA-6 fire retardant with APP increases the oxygen index and upgrades the UL94 ranking to class V0. A chemical reaction of APP with talc, detected in the mixtures above 350°C, prevents volatilization of poly phosphoric acid and increases the amount of thermally stable solid residue. The inorganic phosphat…
To investigate the greatest therapeutic efficacy, we investigated the effect of scheduling on the cytotoxic interaction between hyperthermia and seven different platinum complexes in vitro and in vivo using the FSaII murine fibrosarcoma cells. Hyperthermia treatment (43 degrees C, 1 h) was administered at various time…
Phenylethynyl substituted benzenes 1, 2 and 3 are synthesized by the Pd-coupling reaction of phenylacetylene with the corresponding bromobenzene; the third-order optical non-linearity [χ(3)(ω)] increases with the participation of π-conjugation through the triple bond as determined by the degenerate four-wave mixing (D…
Leather tanning industry as a significant polluting source is exposed to stringent effluent limitations. On the other hand, leather processing has a very complex structure in terms of both production and waste streams. A systematic subcategorization approach is required to assess the pollution characteristics and cont…
The photoresponsive ditopic receptors 1a,b bearing two adenine binding sites linked by an azobenzene moiety were prepared. Photochromism, binding of mono- and bis-adenine derivatives and template effects on the coupling reaction of aminoadenosine 2 and the adenosine-derived active ester 3 were studied. Photoswitching…
The paper presents a finite element solution of periodic steady state magnetic field problems in soft materials with scalar hysteresis. The Jiles-Atherton model is employed for the generation of symmetric B-H loops and it is coupled with the Fixed Point technique for handling magnetic nonlinearities. The proposed proc…
The synthesis, structural aspects and thermal behaviour of six different magnesium alcoholates are reported. The magnesium oxides obtained by decomposition of the alkoxides show different particle morphologies, as shown by scanning electron microscopy. The mechanism of the thermal decomposition of magnesium methanolat…
Isomerically pure dimers and trimers containing, two and three triphenylene hexaether mesogenic units, respectively, have been prepared. The key step of the synthesis was an oxidative coupling of a 1,2-dialkoxybenzene and a 3,4,3′,4′-tetraalkoxybiphenyl to give an unsymmetrically substituted triphenylene. The mesophas…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVibrational studies of molecular organization in evaporated phthalocyanine thin solid filmsR. Aroca and A. ThedchanamoorthyCite this: Chem. Mater. 1995, 7, 1, 69–74Publication Date (Print):January 1, 1995Publication History Published online1 May 2002Published inissue 1 Janua…
The intergranular (intercrystalline) corrosion (IGC) of a heat-treated aluminum (Al)-magnesium (Mg)-silicon (Si)-copper (Cu) alloy was investigated using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). SEM revealed that tall chimneys of corrosion product formed on the surface above the p…
In earlier studies of genetic competence in Escherichia coli induced with calcium-containing buffers, a strong correlation was found between transformation efficiency and the formation of poly-beta-hydroxybutyrate/calcium polyphosphate (PHB/Ca2+/PPi) complexes in the plasma membranes. In this study, we replaced Ca2+ w…
Article Influence of the Alkali Concentration on the Formation of Cellulose II. Study by X-Ray Diffraction and FTIR Spectroscopy was published on January 1, 1995 in the journal Holzforschung (volume 49, issue 6).
Abstract The reaction between BiI 3 and two equivalents of dmpu (dmpu = N,N′‐dimethylpropylene urea) in thf (tetrahydrofuran) or toluene affords dark red crystals of the complex [Bi(dmpu) 6 ][Bi 3 I 12 ] which was characterised by X‐ray crystallography and consists of octahedral [Bi(dmpu) 6 ] 3+ cations and [Bi 3 I 12…
The experimental phase diagram between the plastic crystals neopentyl glycol (NPG) and tris(hydroxymethyl)aminomethane (TRIS) has been established. The importance of the use of complementary techniques with different timescales in order to obtain the most realistic phase diagram is underlined. The miscibility is discu…
A neural network system, utilizing the multi-layer perceptron approach has been applied to distinguish between power cable insulation partial discharge pulse shapes that are characteristic of cavities and electrical trees. The neural network was found to be capable of recognizing the differences in PD pulses produced…
Silica is an important industrial chemical but the mechanisms involved in its formation from aqueous precursors remain far from well understood. In this study we have prepared a range of silicon catecholate salts where M+ is Li+, Na+, K+, NH4+, Et3NH+ and followed complex breakdown and silica oligomerisation under app…
P. R. Unwin and J. V. Macpherson, Chem. Soc. Rev., 1995, 24, 109 DOI: 10.1039/CS9952400109
Polylactide (PLA) microspheres containing ovalbumin (OVA) as a model protein were prepared by a water-in-oil-in-water (w/o/w) emulsion solvent evaporation method. The optimization of preparative parameters for the PLA microspheres containing OVA were performed, and the in vitro characteristics of the obtained microsph…
In this paper a comparative study is presented of four hysteresis models with regard to the numerical computation of the fields inside soft magnetic laminations. Addressed topics include parameter identification and precision. All computed results are compared with measurements.
Manganiferous rock varnish collected from Death Valley and Antarctica contains the smallest known terrestrial sedimentary deposits, with some layers only a few nanometers thick. Irregularities in these nanometer-scale layers are consistent with shrinking, cracking, and weathering of clay minerals. In the Death Valley…