Hongwei Hou、Gang Li、Yinglin Song 等 6 位作者2003-06-01European Journal of Inorganic Chemistry
Abstract Two novel ferrocenyl complexes [Ag(L) 2 ](NO 3 )·(MeOH)· (EtOH) ( 1 ) and [HgI 2 (L)] ( 2 ) {L = 1,2‐bis[(ferrocen‐l‐ylmethylene)amino]ethane} have been prepared and structurally characterized by means of X‐ray single crystal diffraction. The central ion, silver( I ) or mercury( II ), has a distorted tetrahed…
Metal complexes synthesis and propertiesCrystal structures of chemical compoundsNonlinear Optical Materials Research
В. И. Николаев、А. М. Шипилин2003-06-01Physics of the Solid State
The size effect of magnetically ordered nanoparticles on the Curie temperature is discussed. For a system of Fe 3 O 4 nanoparticles with different dispersities, it is demonstrated that the smaller the size of the particles, the larger the thickness of their surface layer, which is characterized by considerable distort…
Magnetic Properties and Synthesis of FerritesIron oxide chemistry and applicationsCrystallography and Radiation Phenomena
Pål Kittilsen、Hallvard F. Svendsen、Timothy F. L. McKenna2003-06-01AIChE Journal
Abstract The catalyst particle fragmentation process is an important step in determining the final morphology of olefin polymer particles. Understanding the different phenomena that influence it is, therefore, essential in optimizing polymerization processes and in obtaining the desired quality of polymer. A new visco…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesOrthopaedic implants and arthroplasty
Jiewu Meng、G. J. Rix2003-06-01Géotechnique
Equipment-generated damping in the resonant column (RC) test due to interaction between the magnets and solenoids in the drive system causes a bias error in measured values of material damping ratio. Calibration and post-measurement corrections have been used to address this problem. In this study, an electromechanica…
High voltage insulation and dielectric phenomenaStructural Health Monitoring TechniquesVibration and Dynamic Analysis
Valérie Clerin、Jason W. Nichol、Matus Petko 等 6 位作者2003-06-01Tissue Engineering
Traditional approaches to generating tissue-engineered arteries in vitro rely on expansion of cells in culture to seed appropriate scaffolds. In most envisioned applications, small autologous blood vessels would be harvested and used as a source for these cells. We propose that small autologous arteries, not the cells…
Electrospun Nanofibers in Biomedical ApplicationsCardiac and Coronary Surgery TechniquesTissue Engineering and Regenerative Medicine
M. del Arco、Silvia Gutiérrez‐Granados、C. Dianne Martin 等 4 位作者2003-06-01Inorganic Chemistry
A Mg,Al layered double hydroxide (LDH) with [Cr(C(2)O(4))(3)](3)(-) anions in the interlayer has been synthesized following two different routes: reconstruction from a mildly calcined Mg,Al-carbonate LDH, and anion exchange from a Mg,Al-nitrate LDH. The solids prepared have been characterized by elemental chemical ana…
Layered Double Hydroxides Synthesis and ApplicationsChemical Synthesis and CharacterizationMagnesium Oxide Properties and Applications
Matthias Taupitz、S. A. Schmitz、Bernd Hamm2003-06-01RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren
A wide range of applications for superparamagnetic iron oxide (SPIO) particles as contrast media for MRI has emerged over the last 15 years. SPIO particles can be manufactured with different particle sizes and surface coatings. Large SPIO particles (50-150 nm) predominantly produce a signal decrease or T2 -shortening…
Magnetism in coordination complexesLanthanide and Transition Metal ComplexesElectron Spin Resonance Studies
J. Spencer Braithwaite、Kate Wright、C. Richard A. Catlow2003-06-01Journal of Geophysical Research Atmospheres
Computer modeling techniques have been used to study the structure and energetics of H defects in Mg 2 SiO 4 forsterite and their infrared stretching frequencies. The calculated defect binding energies indicate that OH groups will combine with cation vacancies to form neutral defect complexes. Such defect clusters are…
Advanced ceramic materials synthesisHigh-pressure geophysics and materialsMetallurgical Processes and Thermodynamics
Yeong‐Shyung Chou、Jeffry W. Stevenson、Lawrence A. Chick2003-06-01Journal of the American Ceramic Society
A novel hybrid compressive mica seal was developed that showed an exceptionally low leak rate of ∼8.9 × 10 −4 sccm/cm (standard cubic centimeters per minute per unit leak length of seal) at 800°C and a compressive stress of 100 psi, about 740 times lower than that of the conventional compressive mica seals (6.6 × 10 −…
Advancements in Solid Oxide Fuel CellsFuel Cells and Related MaterialsElectronic and Structural Properties of Oxides
Annette Deyhle、V.F. Hodge、Ralph A. Lewin2003-06-01Journal of Phycology
Lewin, J. C. (1965) showed that boron is required for the growth of Cylindrotheca fusiformis , and, presumably, other diatoms too. It may be involved in cellular metabolism, as in higher plants, or incorporated by accident or design into the siliceous skeletons (frustules), since B 2 O 3 has been proven to replace SiO…
Diatoms and Algae Research
N. Sh. Lebedevа、О. В. Петрова、A. I. V’yugin 等 5 位作者2003-06-01Optics and Spectroscopy
Association of Zn(II)tetra-4-carboxyphthalocyanine in aqueous solutions is studied. The influence of the permittivity of the solvent and pH of the medium and the effects of adding ethanol, electrolytes, electron donor materials, and π-π complexing agents on the state of Zn(II)tetra-4-carboxyphthalocyanine in a solutio…
Nanoplatforms for cancer theranosticsPorphyrin and Phthalocyanine ChemistryPhotodynamic Therapy Research Studies
Sergey I. Pokutnyi2003-06-01Semiconductors
Interband absorption of light in a small semiconductor microcrystal was investigated theoretically within the dipole approximation. An expression for the light-absorption coefficient was derived for the situation where the polarization-related interaction of an electron and hole with the microcrystal surface is domina…
Gold and Silver Nanoparticles Synthesis and ApplicationsQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin Films
Jérôme Rouquette、M. Pauthe、Michel Ramonda 等 5 位作者2003-06-01Japanese Journal of Applied Physics
Silicon crystallites embedded in thin silica films were prepared by the sol-gel route, using triethoxysilane as a precursor. The films of silicon crystallites were either obtained as free-standing films or were deposited on (001)-oriented silicon or glass substrates by a spin coating deposition of a liquid phase that…
Semiconductor materials and devicesSilicon Nanostructures and PhotoluminescenceNanowire Synthesis and Applications
Shaoyun Guo、Hong Wu、Guangshun Chen 等 4 位作者2003-06-01Polymer Composites
Abstract The effect of high‐energy mechanical milling of CaCO 3 (calcium carbonate) and STC (a mixture of sericite, tridymite and cristobalite) on mechanical properties, rheological and dynamical mechanical behavior of high‐density polyethylene (HDPE)/CaCO 3 and HDPE/STC was studied through SEM (scanning electron micr…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesNatural Fiber Reinforced Composites
Chao Zhang、Toshiyuki Mori、T. Mizutani 等 4 位作者2003-06-01IEEE Transactions on Dielectrics and Electrical Insulation
Extruded films prepared from blends of low-density polyethylene (LDPE) and random copolymer of ethylene and propylene (EP) with the T-die method were studied with respect to electrical properties and morphology. Comparisons with data on blown films are made. These blends are of interest as improved LDPE for making XLP…
High voltage insulation and dielectric phenomenaElectromagnetic Compatibility and Noise SuppressionElectrostatic Discharge in Electronics
Mustafa Yavuz、K.K. Uprety、G. Subramanian 等 4 位作者2003-06-01IEEE Transactions on Applied Superconductivity
In this paper, we attempt to grow films on a MgO substrate using Pulsed Laser Ablation, and report on the effect of deposition conditions and post-deposition annealing on the film properties.
ZnO doping and propertiesMetal and Thin Film MechanicsSemiconductor materials and devices
Elvira B. Rabinovitch2003-06-01Journal of Vinyl and Additive Technology
Abstract This paper provides an insight on the relationship between the physical properties of profiles extruded from flexible PVC compounds and the extrusion melt temperature. The properties include tear resistance, tensile properties, brittleness temperature, and compression set. The effect of heat history on surfac…
Polymer Science and PVC
Yan Hua、Hai‐Yang Liu、Wei Ni 等 7 位作者2003-06-01Journal of Natural Products
Four new 5alpha-steroidal glycosides with an unusual framework, funingenosides A (1), B (2), C (3), and D (4), were isolated from the roots of Parepigynum funingense. Their structures were elucidated on the basis of 1D and 2D NMR techniques. The structure and relative stereochemistry of compound 1 were demonstrated by…
Phytochemical Studies and BioactivitiesPhytochemistry and Bioactive CompoundsSteroid Chemistry and Biochemistry
Sang‐Woo Kim、Masaya Ueda、Teruhisa Kotani 等 5 位作者2003-06-01Japanese Journal of Applied Physics
One-dimensional ZnO nanodot arrays have been realized by metalorganic chemical vapor deposition on SiO 2 substrates patterned by focused ion beam (FIB). Especially for the lines with the depth of 5 nm and the length of 0.7, 1.3 or 1.7 µm, one, two or three nanodots, respectively, of fairly uniform size 6-nm height and…
ZnO doping and propertiesNanowire Synthesis and ApplicationsAnodic Oxide Films and Nanostructures
A. I. Baranov、Lars Kloo、A. V. Olenev 等 5 位作者2003-06-01Inorganic Chemistry
The new compound Ni(8)Bi(8)SI(2) has been synthesized and its crystal structure determined by X-ray crystallography. The structure contains one-dimensional (1D) cations (1)( infinity )[Ni(8)Bi(8)S](2+) separated by iodine anions. The geometry of the columns is similar to that of the recently reported (1)( infinity )[N…
Synthesis and characterization of novel inorganic/organometallic compoundsIron-based superconductors researchInorganic Chemistry and Materials