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Identification of a novel tetragonally compressed six-coordinate copper(II) complex: preparation and characterization of a 3-chloroanilinium copper chloride complex, (3-chloroanilinium)8[CuCl6]Cl4

D. A. Tucker、Peter S. White、Kathleen L. Trojan 等 5 位作者1991-02-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIdentification of a novel tetragonally compressed six-coordinate copper(II) complex: preparation and characterization of a 3-chloroanilinium copper chloride complex, (3-chloroanilinium)8[CuCl6]Cl4Denise A. Tucker, Peter S. White, Kathleen L. Trojan, Martin L. Kirk, and Willi…

Crystal structures of chemical compoundsMagnetism in coordination complexes

X-ray photoelectron spectroscopy studies of the reaction of N+2 -ion beams with niobium and tantalum metals

S. Badrinarayanan、S. Sinha1991-02-01Journal of Applied Physics

I n situ nitrogen-ion implantation of polycrystalline niobium and tantalum was performed and the surface was characterized by x-ray photoelectron spectroscopy (XPS). The XPS chemical shifts indicated the formation of metal nitride. The chemical shift values are calculated theoretically and compared with the experiment…

Semiconductor materials and devicesElectron and X-Ray Spectroscopy TechniquesIon-surface interactions and analysis

Optical harmonic generation and mixing in multilayer media: extension of optical transfer matrix approach to include anisotropic materials

Donald S. Bethune1991-02-01Journal of the Optical Society of America B

The optical transfer matrix technique for the analysis of optical harmonic generation and mixing in laminar structures is extended to include the case of anisotropic media. This approach is applicable in the limit of low conversion efficiencies, where attenuation and phase shifts of the pump beams due to nonlinear int…

Photonic and Optical DevicesLiquid Crystal Research AdvancementsNonlinear Optical Materials Research

Influence of Oxygen Vacancies on the Electronic Structure of Yttrium Oxide

F. Jollet、Claudine Noguera、M. Gautier 等 5 位作者1991-02-01Journal of the American Ceramic Society

The influence of oxygen vacancies on the electronic structure of yttrium oxide was investigated both experimentally and theoretically. By means of X‐ray absorption spectroscopy, at the yttrium K and L 11 edges and at the oxygen K edge, information on the local densities of states of various orbital symmetries, around…

Catalytic Processes in Materials ScienceSemiconductor materials and devicesCatalysis and Oxidation Reactions

Improvement of the Response of an SMA Actuator Using a Temperature Sensor

Katsutoshi Kuribayashi1991-02-01The International Journal of Robotics Research

The ordinary control method, pulse width modulation (PWM) control method, for the shape memory alloy (SMA) actuator has a basic defect: the response of an SMA actuator controlled by this method is very slow, because the maxi mum voltage supplied to the SMA must be kept low in order to prevent the SMA from burning beca…

Shape Memory Alloy Transformations

Inhibition of metal corrosion by bacteria

Amelie Pedersen、Malte Hermansson1991-02-01Biofouling

Corrosion inhibition of steel (ASTM A619) by two marine isolates, Pseudomonas sp.S9 and Serratia marces‐cens EF190, was investigated by weight loss measurements of metal coupons placed in static batch cultures. Artificial seawater with (VNSS) and without (NSS) nutrients was used. The effects of bulk‐ and surface local…

Corrosion Behavior and InhibitionBacterial biofilms and quorum sensingMarine Biology and Environmental Chemistry

Prediction of Sulfate Scaling Tendency in Oilfield Operations

M. D. Yuan、Adrian Christopher Todd1991-02-01SPE Production Engineering

Summary This paper presents a model for predicting the scaling tendencies of barium, strontium, and calcium sulfates resulting from the mixing of injected and formation waters and from temperature and pressure effects. The model also predicts competitive simultaneous coprecipitation of BaSO4, CaSO4, and SrSO4, where s…

Calcium Carbonate Crystallization and InhibitionMine drainage and remediation techniquesChemical and Physical Properties in Aqueous Solutions

Antioxidative mechanism of maize zein in powder model systems against methyl linoleate: effect of water activity and coexistence of antioxidants

Jin Ye Wang、Kenshiro Fujimoto、Teruo Miyazawa 等 4 位作者1991-02-01Journal of Agricultural and Food Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAntioxidative mechanism of maize zein in powder model systems against methyl linoleate: effect of water activity and coexistence of antioxidantsJin Ye Wang, Kenshiro Fujimoto, Teruo Miyazawa, and Yasushi EndoCite this: J. Agric. Food Chem. 1991, 39, 2, 351–355Publication Dat…

Postharvest Quality and Shelf Life ManagementNanocomposite Films for Food PackagingFermentation and Sensory Analysis

Negative supercoiling of DNA facilitates an interaction between transcription factor IID and the fibroin gene promoter.

Masaharu Mizutani、Tsutomu Ohta、Hajime Watanabe 等 5 位作者1991-02-01Proceedings of the National Academy of Sciences

Transcription of the fibroin gene can be reconstituted with partially purified components from HeLa cells. Transcription factors IIB, IID, and IIE and RNA polymerase II are required for accurate initiation of transcription. Linear and relaxed closed circular DNA show a similar level of template activity. However, tran…

Insect and Arachnid Ecology and BehaviorViral Infectious Diseases and Gene Expression in InsectsSilk-based biomaterials and applications

Sonolysis of water-methanol mixtures

Joerg Buettner、M. Gutiérrez、A. Henglein1991-02-01The Journal of Physical Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSonolysis of water-methanol mixturesJoerg Buettner, Maritza Gutierrez, and A. HengleinCite this: J. Phys. Chem. 1991, 95, 4, 1528–1530Publication Date (Print):February 1, 1991Publication History Published online1 May 2002Published inissue 1 February 1991https://pubs.acs.org/…

Spectroscopy and Quantum Chemical StudiesUltrasound and Cavitation PhenomenaField-Flow Fractionation Techniques

Exact block diagonalization of large eigenvalue problems for structures with symmetry

Timothy J. Healey、Jay Treacy1991-02-01International Journal for Numerical Methods in Engineering

Abstract We consider large eigenvalue problems for skeletal structures with symmetry. We present an algorithm, based upon a novel combination of group‐theoretic ideas and substructuring techniques, that block‐diagonalizes such systems exactly and efficiently. The procedure requires only the structural matrices of a re…

Microstructure and mechanical propertiesQuasicrystal Structures and PropertiesX-ray Diffraction in Crystallography

Mercerization of cellulose. 5. Crystal and molecular structure of Na-cellulose I

Hisao Nishimura、Takeshi Okano、A. Sarko1991-02-01Macromolecules

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMercerization of cellulose. 5. Crystal and molecular structure of Na-cellulose IHisao Nishimura, Takeshi Okano, and Anatole SarkoCite this: Macromolecules 1991, 24, 3, 759–770Publication Date (Print):February 1, 1991Publication History Published online1 May 2002Published ini…

Advanced Cellulose Research Studies

Absorption contrast effects in the quantitative XRD analysis of powders by full multiphase profile refinement

J. C. Taylor、C. E. Matulis1991-02-01Journal of Applied Crystallography

It is shown that quantitative X-ray powder diffraction analyses using full profile multiphase refinement should include corrections for the Brindley particle absorption contrast effect. This is demonstrated with synthetic mixtures of the highly contrasting phases LiF and Pb(NO3)2 (μ/ρ = 20 and 231 cm−1 for Co Kα). Wit…

Advanced ceramic materials synthesisAdvanced materials and compositesX-ray Diffraction in Crystallography

Synthesis of functionalized polypropylene

T. C. Chung、D. Rhubright1991-02-01Macromolecules

ADVERTISEMENT RETURN TO ISSUEPREVArticleSynthesis of functionalized polypropyleneT. C. Chung and D. RhubrightCite this: Macromolecules 1991, 24, 4, 970–972Publication Date (Print):February 1, 1991Publication History Published online1 May 2002Published inissue 1 February 1991https://pubs.acs.org/doi/10.1021/ma00004a026…

Polymer Nanocomposites and PropertiesConducting polymers and applicationsMicroplastics and Plastic Pollution

Mesogenic Behaviour of some 1,4,8,11,15,18,22,25-Octa-alkylphthalocyanines

A. S. Cherodian、A. N. Davies、Robert M. Richardson 等 9 位作者1991-02-01Molecular crystals and liquid crystals

Discotic columnar mesophase behaviour exhibited by ten metal-free and copper 1,4,8,11,15,18,22,25- octa-alkylphthalocyanines has been characterised by optical microscopy, differential scanning calorimetry, x-ray diffraction and electronic absorption spectroscopy. Compounds with side-chains as short as hexyl exhibit on…

Magnetism in coordination complexesPorphyrin and Phthalocyanine ChemistryPhotochemistry and Electron Transfer Studies

Electrically conducting polymers containing alternating substituted phenylenes and bithiophene repeat units

John R. Reynolds、José Pedro Novalbos Ruiz、Andrew D. Child 等 5 位作者1991-02-01Macromolecules

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrically conducting polymers containing alternating substituted phenylenes and bithiophene repeat unitsJohn R. Reynolds, Jose P. Ruiz, Andrew D. Child, Kasinath Nayak, and Dennis S. MarynickCite this: Macromolecules 1991, 24, 3, 678–687Publication Date (Print):February 1…

Organic Electronics and PhotovoltaicsConducting polymers and applicationsMolecular Junctions and Nanostructures

Development of Partitioning and Transmutation Technology for Long-Lived Nuclides

Tadashi Inoue、Masahiro Sakata、Hajime Miyashiro 等 6 位作者1991-02-01Nuclear Technology

High-level radioactive wastes from the Purex process contain long-lived nuclides, which mainly consist of transuranic elements (TRUs). A partitioning and transmutation method that consists of pyrometallurgical partitioning of TRUs from Purex waste from light water reactor fuel and transmutation using a metal-fueled fa…

Nuclear Materials and PropertiesGraphite, nuclear technology, radiation studiesNuclear and radioactivity studies

Slow crack growth in polyethylene ‐ a review

Norman Brown、Xici Lu、Yan‐Ling Huang 等 4 位作者1991-02-01Makromolekulare Chemie Macromolecular Symposia

Abstract Slow crack growth in a wide variety of polyethylenes have been investigated. The quantitative relationship between: (1) the external variables such as stress, temperature, stress intensity and J‐integral; (2) the morphological variable such as density and crystal size and (3) molecular variables such as molec…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesPolymer Science and PVC

High Conducting Large Area Indium Tin Oxide Electrodes for Displays Prepared by DC Magnetron Sputtering

R. Latz、K. Michael K. Michael、M. Scherer M. Scherer1991-02-01Japanese Journal of Applied Physics

High conducting ITO films were deposited by DC magnetron sputtering using ITO targets. At substrate temperatures of 200°C and 300°C ITO films were reproducibly prepared with resistivities of 1.9×10 -4 Ω·cm respectively 1,4×10 -4 Ω·cm at a deposition rate of 20 Å/s. ITO films prepared at room temperature show after ann…

ZnO doping and propertiesGas Sensing Nanomaterials and SensorsTransition Metal Oxide Nanomaterials

Niobium oxide solution chemistry

Jih‐Mirn Jehng、Israel E. Wachs1991-02-01Journal of Raman Spectroscopy

Abstract The solution chemistry of niobium oxide in alkaline and acidic oxalate solutions was investigated by Raman spectroscopy in order to determine the molecular structures of the various aqueous niobium oxide species. The aqueous potassium niobate species were studied as a function of pH from 14.5 to 0.55. Differe…

Advanced Photocatalysis TechniquesMesoporous Materials and CatalysisPolyoxometalates: Synthesis and Applications