摘要:
Utilizing the technique whereby particulate media electrodeposited at a critical electric field intensity has a given packing density, and when electrodeposited at a lesser electric field intensity has a lower density, the present invention teaches electrodeposition of media whose particulate packing density varies in accordance with an areally predetermined pattern. The pattern is incised in one electrode of the deposition apparatus, and the medium as deposited on the other electrode mirrors the pattern as a varying particulate packing density. The packing density varies with the electric field intensity, and the electric field varies due to the unequal interelectrode distances arising from the incisions in the electrode. The medium is then d.c. magnetized, and the density variation provides a magnetically reproducible signal in accordance with the pattern.
摘要:
The invention relates a wire grid polarizer that includes a micropatterned substrate having channels. An electrically conductive material is disposed on the micropatterned substrate in strips having a width of 10 to 20 nm and oriented either parallel or perpendicular to the channels.
摘要:
The present invention allows one to use a phase I reactor to make thinner silver halide grains. This is accomplished by introducing the halide salt solution and the silver salt solution as close as possible to each other above the mixer head. The reactor is essentially divided into a micro reaction zone and a bulk reaction zone, thus, emulating the effect of a phase II or two stage reactor.
摘要:
The present invention relates to a process of preparing radiation sensitive silver halide grains containing at least 90 mole % silver iodide and having a morphological configuration of four hexagonal bipyramids each with bases joined to form a common tetrahedron. With this process, the hexagonal bipyramid portion of the grains can be elongated and/or truncated. In addition, the fraction of silver halide grains which have a configuration of four hexagonal bipyramids is increased.
摘要:
Various systems, methods, and programs embodied in computer-readable mediums are provided for implementing circular replication among nodes. In a representative example, a plurality of nodes are arranged in a circular replication configuration. Each of the nodes has a logfile indicating storage of a plurality of entries, where each of the nodes receives the entries from a plurality of external devices. The entries received by a respective one of the nodes are replicated in the remaining ones of the nodes via circular replication.
摘要:
Methods of forming a dye donor layer of a dye-donor element for a thermal dye transfer system are described. The methods include coating colored particles in a compressed carrier fluid on the substrate of the dye-donor element.
摘要:
A method is disclosed for washing silver halide photographic emulsions, including desalting and/or concentrating, based on depletion phase separation mechanism, wherein phase separation is effected by the addition of water-soluble non-interactive and non-adsorbing non-ionic polymers or non-ionic surfactant micelles. The process involves the separation of the supernatant fluid, containing the undesirable water-soluble salts and the added phase separating agents, from the washed and condensed silver halide phase and redispersion of the latter.
摘要:
Novel tabular grain emulsions and a process for their preparation are disclosed in which silver bromoiodide tabular grains account for greater than 97 percent of total grain projected area and the coefficient of variation of the total grain population is less than 25 percent. This is achieved by forming in a first reaction vessel and transporting to a second reaction vessel a population of silver bromide grain nuclei in the form of regular octahedra having an equivalent circular diameter of less than 40 nanometers and a coefficient of variation of less than 50 percent and in the second reaction vessel converting the grain nuclei into a grain population containing parallel twin planes in more than 90 percent of the grains, so that upon further growth silver bromoiodide tabular grains of desired properties can be realized.A photographic element is disclosed comprised of a support, a first silver halide emulsion layer responsive to minus blue (500 to 700 nm) light and a second silver halide emulsion layer positioned to overlie the first emulsion layer. In the second emulsion layer greater than 97 percent of the total projected area of grains having an equivalent circular diameter of at least 0.2 .mu.m is accounted for by silver bromoiodide tabular grains having an average equivalent circular diameter of at least 0.7 .mu.m and an average thickness of less than 0.07 .mu.m.
摘要:
An integrated electromechanical disc drive system for creating nanoscale patterns comprises a spinning disc coated with a liquid or solid film and at least one flying integrated write head, said write head being attached to a pivoted swing arm and comprising a heating tip locally exerting heat when a current is driven through it; and at least one electrically conductive electrode tip which functions as an electrostatic atomic force tip capable of exerting an electric field between the tip and the disc.
摘要:
A method, system and applicator for the solvent-less delivery of a bio-active material to a receiver. The applicator includes a discharge device, a reservoir which holds a bioactive material, and a solvent at a supercritical fluid state for delivering the bioactive material through the discharge device to the receiver. A spacer may be positioned between the discharge device and the receiver. The receiver may have a plurality of different bio-active material to be applied to a subject, each located at a different location on the receiver.