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。
While the field of tissue engineering is a burgeoning one, progress with fat engineering has lagged, due in large part to problems associated with nurturing and sustaining this unique tissue in vivo. In a pilot study using an experimental rat model, we induced liponeogenesis with a combination of Matrigel and basic fi…
Ytterbium and neodymium have been shown to exhibit sensitised emission following excitation of pyrene chromophores. Sensitised emission is demonstrated in self-assembled complexes and in azamacrocycle derivatives bearing pendent pyrene groups. Energy transfer in these systems is dependent on the nature of the link bet…
A new sandwich-tpype dilutetium tetraphthalocyanine 4 has been synthesized by the reaction of dimeric lutetium(III) phthalocyanine 3 with two equiv. of dilithium octakishexylthiophthalocyanine in amyl alcohol. Compound 3 was prepared from 4',5',4",5"-tetraiminoisoindoline(1,4,7,10-tetrathia-12-crown-4) 1, 4,5-bis(hexy…
Large-scale long (NH4)0.5V2O5 nanowires have been synthesized by rational hydrothermal treatment of ammonium metavanadate at 170 °C. Scanning electron microscope and transmission electron microscope analyses show that the nanowires have diameters of about 20–80 nm, and lengths up to 0.5 mm. Some self-assembled nanobel…
Aluminosilicate mesostructures (Si/Al = 1.6–49) with wormhole framework structures were assembled from protozeolitic nanoclusters (zeolite seeds) that normally nucleate the crystallization of faujasite (FAU), zeolite ZSM-5 (MFI) and zeolite Beta (BEA). The cationic surfactant cetyltrimethylammonium, the electrically n…
Three-dimensional (3D) nanostructures on a glass capillary have a number of useful applications such as manipulators, actuators, and sensors in the various microstructures. We observed a phenomenon that two diamondlike-carbon pillars on a tip of glass capillary fabricated by 30 keV Ga+ focused-ion-beam-chemical vapor…
We investigated the dynamic behavior of 1-3 type magnetostrictive particulate composites as a function of both bias field (5-140 kA/m) and frequency (1-100 kHz). The composites consist of approximately 0.5 volume-fraction Terfenol-D particles embedded and magnetically aligned in a passive epoxy matrix. The measured pr…
A mixed surfactant approach has been successfully employed in an aerosol-based synthesis of spherical silica particles exhibiting a new core-shell structure where the shell and the core exhibit different ordered mesoporosity and pore sizes.
Nephrogenic fibrosing dermopathy (NFD) is a rare fibrosing skin disease of unknown etiology occurring in patients with terminal renal disease. It was first described in the year 2000. The histology of NFD shows an increased number of dendritic cells, fibroblasts and thickened collagen fibers resembling scleromyxedema.…
We investigated the influence of periodicity, misalignment, and disorder on the magnetic resonance gap of split-ring resonators (SRRs) which are essential components of left handed-metamaterials (LHMs). The resonance of a single SRR which is induced by the split is experimentally demonstrated by comparing transmission…
Cyano-bridged corrugated ladder-like chains are connected by mu(1,1)-N(3) (end-on, EO) bridges to form a layered coordination polymer, [Mn(N(3))(CH(3)OH)[Cr(phen)(CN)(4)].CH(3)OH (2), which is the first mixed cyano-azide bridged compound, and shows metamagnetism below 21.8 K, a temperature much higher than that (3.4 K…
Electrophilic functionalization of vapour-grown carbon nanofibers (VGCNF) was accomplished via Friedel–Crafts acylation with 2,4,6-trimethylphenoxybenzoic acid in polyphosphoric acid using the improved conditions that we previously described. The progress of the reaction was conveniently monitored with FT-IR spectrosc…
New lanthanide heterometallic molecular squares functionalized with Ru-bipy antenna chromophore Ru2-Ln2 exhibit sensitized near-infrared emission upon photo-excitation of the Ru-centered antenna at 420 nm.
Nanowires of a variety of inorganic materials such as metal oxides, sulfides, nitrides and carbides have been synthesized and characterized in the last three to four years. Among the several strategies developed for the synthesis of these materials, the carbothermal route is noteworthy since it provides a general meth…
In this communication, we demonstrate a new approach to well-controlled growth of Se nanowires and nanotubes, which comprises a hydrothermal process and a following sonication. The hydrothermal process was used to derive Se particles of trigonal phase. In the subsequent sonication, if the Se particles were large enoug…
This paper shows three different joining methods for fibre ceramic materials. The so called in-situ joining method is an integral part of the manufacturing process for CMC structures via the liquid silicon infiltration (LSI) process. Stiffening elements, local patches within attachment areas, inserts etc. are permanen…
La plupart des défaillances des systèmes nucléaires sont liées à des problèmes de matériaux. Cet ouvrage aborde les contraintes et sollicitations spécifiques que le nucléaire apporte aux matériaux utilisés dans cette industrie, qu'ils soient fonctionnels ou structurels.
A mixture of N,O-bis(trimethylsilyl)trifluoroacetamide (BSTFA) and trimethylchlorosilane (TMCS) (99 : 1) is a highly sensitive derivatization reagent for carboxylic acid by gas chromatography/mass spectrometry (GC/MS), and Pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) of poly(acrylic acid) (PAA) at 500 °C…
Melting behavior of nonisothermally crystallized samples of the neat isotactic polypropylene homopolymer (PP‐0) and the nanocomposite containing 4.68 wt% of organosilica (PP‐4.68) was studied in the temperature‐modulated differential scanning calorimetry (DSC) mode at three underlying heating rates and five modulation…
Preparation of ammonium polyphosphate form II was made by heating a mixture of ammonium orthophosphate and urea at 280 to 300°C under wet ammonia which was prepared by passing air through 3 to 5% ammonia water. Simple dry process of the preparation of ammonium polyphosphate form V was studied and the ammonium polyphos…