Ann‐Christine Albertsson、Maria Eklund1995-07-05Journal of Applied Polymer Science
Abstract Relationships between molecular structure and the degradation mechanism of degradable polymers are of special interest for temporary medical applications. The in vitro degradation study of three aliphatic polymers—poly(trimethylene carbonate) (PTMC), poly(trimethylene carbonate‐ co ‐caprolactone) (PTMC‐PCL),…
biodegradable polymer synthesis and propertiesMicroplastics and Plastic PollutionCarbon dioxide utilization in catalysis
Y. Ueda、Hirofumi Tamura、Eiji Hashimoto1995-07-03Journal of Physics Condensed Matter
The detailed dependence of the residual electrical resistivity on the current direction has been measured at 4.2 K in high-purity aluminium single crystals. All the specimens with the same main surface (110) were cut from one single-crystal rod with the residual resistance ratio of about 50000. The bulk residual resis…
Copper Interconnects and ReliabilitySemiconductor materials and interfacesSurface and Thin Film Phenomena
Michael L. Bender、D. Ehrlich、I.N. Yakovkin 等 8 位作者1995-07-03Journal of Physics Condensed Matter
Structural rearrangements of the (111) surface in the system Cr 2 O 3 (111)/Cr(110) as a function of temperature were investigated by means of low-energy electron diffraction (LEED) and electron energy loss spectroscopy (EELS). At room temperature, one observes a simple (1*1) LEED pattern of the clean (111) surface. I…
Copper-based nanomaterials and applicationsElectron and X-Ray Spectroscopy TechniquesGa2O3 and related materials
M. de Boissieu、Michel Boudard、B. Hennion 等 8 位作者1995-07-03Physical Review Letters
The diffuse scattering located close to Bragg reflections has been measured on a single grain of the AlPdMn icosahedral phase using elastic neutron scattering. This diffuse scattering is mainly due to phason disorder. The intensity distribution and anisotropic shape can be reproduced in the framework of the elastic th…
Quasicrystal Structures and PropertiesX-ray Diffraction in CrystallographyMineralogy and Gemology Studies
Tillman U. Gerngross、David P. Martin1995-07-03Proceedings of the National Academy of Sciences
A combined chemical and enzymatic procedure has been developed to synthesize macroscopic poly[(R)-(-)-3-hydroxybutyrate] (PHB) granules in vitro. The granules form in a matter of minutes when purified polyhydroxyalkanoate (PHA) synthase from Alcaligenes eutrophus is exposed to synthetically prepared (R)-3-hydroxybutyr…
Enzyme Catalysis and Immobilizationbiodegradable polymer synthesis and propertiesMicrobial Metabolic Engineering and Bioproduction
Y. Okimoto、T. Katsufuji、T. Ishikawa 等 6 位作者1995-07-03Physical Review Letters
Optical spectra and their temperature dependence have been investigated for a prototypical double-exchange ferromagnet ${\mathrm{La}}_{1\ensuremath{-}x}{\mathrm{Sr}}_{x}{\mathrm{MnO}}_{3}$ ( $x\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}0.175$). The optical conductivity spectrum above ${T}_{c}$ is characterized…
Magnetic and transport properties of perovskites and related materialsMultiferroics and related materialsAdvanced Condensed Matter Physics
Hui Xiong、Brian L. Buckwalter、Hong‐Ming Shieh 等 4 位作者1995-07-03Proceedings of the National Academy of Sciences
The tendency of a polypeptide chain to form alpha-helical or beta-strand secondary structure depends upon local and nonlocal effects. Local effects reflect the intrinsic propensities of the amino acid residues for particular secondary structures, while nonlocal effects reflect the positioning of the individual residue…
Chemical Synthesis and AnalysisAntimicrobial Peptides and ActivitiesSupramolecular Self-Assembly in Materials
Robert C. Haddon、A. S. Perel、R. C. Morris 等 6 位作者1995-07-03OpenAlex
N-channel field effect transistors with excellent device characteristics have been fabricated by utilizing C60 as the active element. Measurements on C60 thin films in ultrahigh vacuum show on-off ratios as high as 106 and field effect mobilities up to 0.08 cm2/V s.
Semiconductor materials and devicesDiamond and Carbon-based Materials ResearchFullerene Chemistry and Applications
J.F. Fernández、A. Mendioroz、R. Balda 等 5 位作者1995-07-01Physical review. B, Condensed matter
The optical properties of ${\mathrm{Mo}}^{3+}$ in phosphate glass have been investigated in the 4.2--300 K temperature range by using steady-state and time-resolved narrow-band laser spectroscopy. Steady-state absorption and emission spectra, emission lifetimes, and time-resolved spectra are presented. Fluorescence fr…
Luminescence Properties of Advanced MaterialsGlass properties and applications
N.G. Zagouras、Αθανάσιος Α. Κουτίνας1995-07-01Waste Management & Research The Journal for a Sustainable Circular Economy
This investigation proposes the development of the selective dissolution process for recycling food packaging and other polymeric wastes. This process takes into account that the specific solvent of a particular polymer which is to be separated, must be a non-solvent for the remaining polymers. Likewise, taking into a…
biodegradable polymer synthesis and propertiesRecycling and Waste Management TechniquesPolymer Science and PVC
E. Burkhardt、Z.-G. Ye、H. Schmid1995-07-01Review of Scientific Instruments
Detailed techniques for the construction of low (4–300 K) and high (300–700 K) temperature uniaxial stress application devices are described, designed for studying stress-induced effects, including ferroelastic (/ferroelectric) detwinning, induced phase transitions, piezo-optical effects in ferroic crystals under in s…
Ferroelectric and Piezoelectric MaterialsMultiferroics and related materialsAcoustic Wave Resonator Technologies
D. M. Bigg、V. Kanellopoulous1995-07-01Journal of Thermoplastic Composite Materials
The use of polymers for under-the-hood automobile parts is growing rapidly. During driving, these parts are exposed to a wide range of potentially harmful conditions, including high temperatures and corrosive chemicals. Such exposure conditions can cause changes in a polymer that might affect its long-term performance…
Polymer Nanocomposites and PropertiesNatural Fiber Reinforced CompositesFiber-reinforced polymer composites
Yu. V. Kontsur、Г. С. Шаповал、A. A. Pud1995-07-01Journal of Macromolecular Science Part A
The initiation of electrochemical reductive degradation (ECRD) of polyvinylchloride (PVC) by the active products of electrochemical reduction of dimethylformamide (DMF) and acetonitrile (MeCN) has been investigated. It was determined that ECRD leads to dehydro-chlorination of PVC and brings into appearance polyconjuga…
Polymer Science and PVC
Tetsuo Kusumoto、Ken‐ichi Sato、Tamejiro Hiyama 等 5 位作者1995-07-01Chemistry Letters
Abstract Optically active dihydrobenzofurans and dihydrofuropyridines were synthesized and shown to be good chiral dopants for ferroelectric liquid crystals.
Liquid Crystal Research AdvancementsSynthesis and Properties of Aromatic CompoundsMolecular spectroscopy and chirality
Kiyoshi Kanamura、Hikarí Sakaebe、Hiroyuki Fujimoto 等 4 位作者1995-07-01Journal of The Electrochemical Society
The reaction product of with aniline in water was subjected to various analyses before and after its discharge and charge to determine its physical state and electrochemical reactions. From these analyses, it can be seen that there are two possible states for the reaction product before the discharge; one is a mixture…
Conducting polymers and applicationsElectrochemical Analysis and ApplicationsAnalytical Chemistry and Sensors
Kwan‐Young Han、Tatsuo Uchida1995-07-01Journal of the Society for Information Display
Abstract— Liquid‐crystal molecules on a rubbed‐polymer alignment layer are oriented at a polar angle tilted away from the surface, but the physical reason for this pretilt is not clearly understood. We have developed a new method to determine the three‐dimensionally tilted direction of the polymer by precise measureme…
Liquid Crystal Research AdvancementsPhotonic Crystals and ApplicationsSurface Roughness and Optical Measurements
Anna Borriello、Vincenzo Busico、Claudio De Rosa 等 4 位作者1995-07-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT13C CP/MAS NMR Analysis of Isotactic Poly(3-methyl-1-butene)Anna Borriello, Vincenzo Busico, Claudio DeRosa, and Dirk SchulzeCite this: Macromolecules 1995, 28, 16, 5679–5680Publication Date (Print):July 1, 1995Publication History Published online1 May 2002Published inissue…
Polymer crystallization and propertiesFiber-reinforced polymer compositesNMR spectroscopy and applications
Ning Zhu、Edwin Yue‐Bun Pun、Jia Xu Li1995-07-01Microwave and Optical Technology Letters
Abstract We use conformal mapping techniques to derive the quasianalytical formulas for calculating the effective dielectric constants of coplunar lines on LiNbO 3 substrates having a buffer layer. Our calculations agree well with the results obtained using the point‐matching method. © 1995 John Wiley & Sons, Inc.
Microwave Engineering and WaveguidesPhotonic and Optical DevicesOptical Coatings and Gratings
Alan J. Heeger、Paul Smith、Yong Cao1995-07-01Macromolecular Symposia
Abstract This review of the current status of conducting polymers will focus on recent progress which demonstrates that the initial promise of the late 1970's has become reality. Conducting polymers are now available as materials with truly unique properties: They combine the important electronic and optical propertie…
Organic Electronics and PhotovoltaicsElectrochemical sensors and biosensorsConducting polymers and applications
Yahye Merhi、JEAN BERNIER、Yves Marois 等 4 位作者1995-07-01Journal of Cardiovascular Pharmacology
Thrombogenesis is considered the principal cause of early failure of arterial grafts. Although antithrombotic drugs are recommended, their efficiency under low blood flow conditions is still being debated. In this study, we evaluated the ability of three drugs to modify the thrombotic properties of blood and, conseque…
Electrospun Nanofibers in Biomedical ApplicationsCardiac and Coronary Surgery TechniquesInfectious Aortic and Vascular Conditions