Abstract:
Methods of positioning and orienting nanostructures, and particularly nanowires, on surfaces for subsequent use or integration. The methods utilize mask based processes alone or in combination with flow based alignment of the nanostructures to provide oriented and positioned nanostructures on surfaces. Also provided are populations of positioned and/or oriented nanostructures, devices that include populations of positioned and/or oriented nanostructures, systems for positioning and/or orienting nanostructures, and related devices, systems and methods.
Abstract:
Provided is a glass composition useful in preparing fiberglass, with the composition comprising SiO2 in an amount ranging from 52-62 weight percent: B2O3 in an amount ranging from 3.5-5.5 weight percent; CaO in an amount ranging from 18-25 weight percent; MgO in an amount ranging from 0.5-4 weight percent; Al2O3 in an amount ranging from 10-15 weight percent; and Na2O in an amount ranging from 0.25-2 weight percent. The glass composition has an HTV of no greater than 2300° F. and a liquidus temperature at least 150° F. less than the HTV temperature. The composition allows one to realize costs savings associated with lower batch costs and abatement requirements, without significantly increasing the energy required for melting the glass, reducing fiberization efficiency, or requiring the development of new bushing technology.
Abstract:
Random access to arbitrary images, whether frames or fields, of a video segment compressed using both interframe and intraframe techniques may be enhanced by including state information, for decoding and display, at appropriate points in the compressed bitstream to enable random access to each intraframe compressed image. The state information may be inserted during compression or by processing the bitstream of compressed data. An image index also may be generated that maps each temporal image in a decompressed output image sequence to an offset in the compressed bitstream of the data used to decode the image. The index may be created during compression or by processing the bitstream of compressed data. To access one or more samples starting with a specified point in time in a decompressed output image sequence, the index is accessed using the specified point in time to identify another sample in the decompressed output image sequence for which data is used to produce the specified sample. The identity of the other sample is used to access the index to identify a location in the compressed data for the data used to produce the specified sample.
Abstract:
Random access to arbitrary fields of a video segment compressed using both interframe and intraframe techniques is enhanced by adding state information to the bitstream prior to each intraframe compressed image to allow each intraframe compressed image to be randomly accessed by generating a field index that maps each temporal field to the offset in the compressed bitstream of the data used to decode the field, and by playing back segments using two or more alternatingly used decoders. The cut density may be improved by eliminating from the bitstream applied to each decoder any data corresponding to bidirectionally compressed images that would otherwise be used by the decoder to generate fields prior to the desired field.
Abstract:
Process for the preparation of rigid open celled polyurethane foams comprising the step of reacting an organic polyisocyanate with an isocyanate-reactive material in the presence of a blowing promotor which is an isocyanate-reactive cyclic carbonate or cyclic urea, and in the presence of an aminoalcohol catalyst.
Abstract:
The problems of latency, flow control and data loss, and data movement within a client system memory are solved in a distributed multimedia system so as to enable real-time transmission of broadcast quality media data over the network. Latency is reduced by an estimation by the server of client needs. Data loss is prevented and flow control is provided by permitting the server to send only as much information as the network interface can reliably receive. Data movement is minimized by copying data directly from the network interface to memory in a display processor or audio processor.
Abstract:
Methods for waste treatment and compositions of stabilized waste elements are provided, typically for the disposal of arsenical wastes. Arsenic trioxide waste produced as a by-product of metal extraction is slurried in water for from 6 to 24 hours with finely divided quicklime to produce nonvolatile calcium arsenate (III). An excess of CaO stoichiometry with As is used to consume secondary waste species such as sulphate, silicate and iron oxides. The precipitated arsenate is oven dried at 120.degree. C. and then calcined in air between 15 minutes to several hours at 1000.degree. C. to 500.degree. C. respectively to oxidize arsenate (III) to arsenate (V) as Ca.sub.5 (AsO.sub.4).sub.3 (OH) (an apatite) as the major arsenic immobilization phase, with minor arsenic incorporated in Ca.sub.3 (AsO.sub.4).sub.2. Calcium sulphate anhydrate (sulphate immobilization) and calcium iron oxide (iron immobilization) are also produced. Tertiary immobilization is achieved milling or fracturing and incorporating the apatite an encapsulant consisting of ordinary portland cement and flyash. After curing for one month in steel drums in a water saturated atmosphere, the waste form is ready to be transported either to a repository or to used as landfill. Further security may be achieved at the back end of the process by lining the repository with ferric clays that will strongly absorb and adsorb heavy metal species which may escape.
Abstract:
A device for preventing theft of a small boat having a centerboard slot comprising a plate or rod thin enough to fit through the centerboard slot with means at one end of the plate or rod to which a chain or cable may be secured and means extending outwardly of the rod or plate at the opposite end to keep the device from passing through the centerboard slot.