Materials Literature
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The adhesion of spheroidal particles to spherical drops is calculated and discussed in terms of an equilibrium-penetration index. The present study emphasizes the case of particles that are sufficiently large to affect the drop volume upon penetration. It is shown that the more elongated the particles, the steeper the…
Changes in color parameters with increasing temperatures over the range of 20 to 700 °C were studied in samples from the uppermost surface layer of the A horizon of various typical Mediterranean soils. Because changes in soil color during heating relate to the formation of Fe hydrous oxides species (such as maghemite…
Thermal conductivity images of thermal barrier coatings are measured using time‐domain thermoreflectance at a single delay time with micron‐scale resolution. We find that the thermal conductivity of electron‐beam physical vapor deposited 8 wt% yttria‐stablized zirconia coatings for heat flow along both the through‐thi…
Semiconductor nanocrystals (Quantum dots, Qdots) have recently been used in biological research, because they do not fade on exposure to light, and they enable us to obtain multicolor imaging because of a narrow emission peak that can be excited via a single wavelength of light. There have been no reports of simultane…
Abstract The combination of polymers with nanomaterials displays novel and often enhanced properties compared to the traditional materials. They can open up possibilities for new technological applications. The electric‐ and magnetic‐ field‐sensitive elastomers represent a new type of composites consisting of small pa…
Barium titanate ceramics were prepared through mechanochemical synthesis starting from fresh prepared barium oxide and titanium oxide in rutile form. Mixture of oxides was milled in zirconia oxide jar in the planetary ball-mill during 30, 60, 120 and 240 min. Extended time of milling directed to formation of higher am…
We measured the magnetic properties and heat capacity of three $\mathrm{Dy}{\mathrm{Al}}_{2}$ single crystals with the magnetic field oriented along the three principal crystallographic directions: [100], [110], and [111]. The isothermal entropy change versus temperature curves were obtained from heat capacity and mag…
Fifth-generation poly(propylene imine) dendrimers, modified with 64 apolar adamantyl groups, have been immobilized on cyclodextrin host monolayers ("molecular printboards") on glass by supramolecular microcontact printing. The immobilized dendrimers retain their guest-binding properties and function as "molecular boxe…
Fabric pilling is affected by many interacting factors. This study uses artificial neural networks to model the multi-linear relationships between fiber, yarn and fabric properties and their effect on the pilling propensity of pure wool knitted fabrics. This tool shall enable the user to gauge the expected pilling per…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation S. S. Hullavarad, S. Dhar, B. Varughese, I. Takeuchi, T. Venkatesan, R. D. Vispute; Realization o…
Dendritic macromolecules or “dendrimers” are artificial nanoparticles with precisely defined covalent macromolecular architecture and broad application potential. Their discovery, construction strategies, postsynthetic peripheral modifications, surface-related properties and selected potential applications are the sub…
In this work, donor-acceptor complexes were formed based on antibody-antigen interactions. Immunoglobulin antigen (mouse-IgG) was effectively conjugated to mercaptopropyl acid-modified CdTe quantum dot synthesized in aqueous solution via electrostatic interaction, while organic dyes-tetramethylrhodamine isothiocyanate…
We have fabricated organic diodes utilizing several pi-conjugated organic semiconductors (OSEC) as spacer layers between La2/3Sr1/3MnO3 (LSMO) and various metallic electrodes, and measured their magnetoresistance (MR) and magnetoelectroluminescence (MEL) responses. The devices exhibit large negative high-field MR resp…
The magnetic properties of different compositions in the self-doped lanthanum manganites, ${\mathrm{La}}_{1\ensuremath{-}x}\mathrm{Mn}{\mathrm{O}}_{3}$, have been studied by ac susceptibility and dc magnetization measurements in the temperature range $10--300\phantom{\rule{0.3em}{0ex}}\mathrm{K}$. All compositions wit…
To estimate the apex field-enhancement factor associated with an array of carbon nanotubes (CNTs) on a planar cathode surface, the model of the floating spheres between parallel anode and cathode plates was proposed. An approximate formula for the enhancement factor was derived showing that the intertube distance of a…
Experimental results of magnetization and neutron diffraction in the temperature range $300--1100\phantom{\rule{0.3em}{0ex}}\mathrm{K}$ evidence an anomalous high-temperature irreversible magnetic behavior on metastable FeCu solid solutions. When the temperature is increased above $500\phantom{\rule{0.3em}{0ex}}\mathr…
Transparent conductive In2O3–SnO2 films were deposited by dc magnetron sputtering on unheated glass substrates using high-density ceramic targets with various SnO2 concentrations (0–100 wt. %). These films were subsequently postannealed in various atmospheres [air, Ar (100%) or Ar(97%)+H2(3%)] for 1 h at 200 °C. All t…
Surface-modified colloids which can selectively interact with biological species or surfaces show promise as drug delivery systems. However, the preparation of such targeted devices remains challenging, especially when considering polyion complex micelles for which side reactions with the ionic core components (typica…
This is a critical survey of the phenomenon of strain‐induced crystalline phase changes in semi‐crystalline polymers. This paper is not concerned with the strain‐induced crystallization of glassy polymers. An examination is made of the experimental data reported in literature, together with a discussion about the mech…
A new analytical model for the secondary electron (SE) emission yield, δ, is applied to polymers. It involves a parameter k , k = z C / R , between the most probable energy dissipation depth, z C , of primary electrons (PE) and their range R , where k ranges from 0.5 and 0.45 for low-density, low atomic-weight materia…