摘要:
The present invention relates to a transmitter which includes a synthesis filter bank to spread a data symbol to a plurality of frequencies by encoding the data symbol on each frequency, apply a common pulse-shaping filter, and apply gains to the frequencies such that a power level of each frequency is less than a noise level of other communication signals within the spectrum. Each frequency is modulated onto a different evenly spaced subcarrier. A demodulator in a receiver converts a radio frequency input to a spread-spectrum signal in a baseband. A matched filter filters the spread-spectrum signal with a common filter having characteristics matched to the synthesis filter bank in the transmitter by filtering each frequency to generate a sequence of narrow pulses.; A carrier recovery unit generates control signals responsive to the sequence of narrow pulses suitable for generating a phase-locked loop between the demodulator, the matched filter, and the carrier recovery unit.
摘要:
A composition of matter includes water, at least one acid, at least one surfactant, at least one fluoride salt, and ammonium nitrate. A method of decontaminating a surface includes exposing a surface to such a composition and removing the composition from the surface. Other compositions of matter include water, a fatty alcohol ether sulfate, nitrilotriacetic acid, at least one of hydrochloric acid and nitric acid, sodium fluoride, potassium fluoride, ammonium nitrate, and gelatin.
摘要:
A composition includes a metal alloy matrix comprising iron and a plurality of nanoparticles dispersed within the metal alloy matrix. Each nanoparticle of the plurality comprises an oxide of a rare-earth metal and at least one metal selected from the group consisting of tantalum, niobium, vanadium, and titanium. Some compositions include a metal alloy matrix comprising iron and a plurality of nanoparticles comprising at least two different oxides of rare-earth metals dispersed within the metal alloy matrix. Some methods include mixing an oxide of a rare-earth metal with a first metal and a second metal. Other methods include mixing a plurality of particles comprising at least one oxide of a rare-earth metal with a molten metal comprising iron. Each particle of the plurality may exhibit a density between about 6.9 g/cm3 and about 9.0 g/cm3.
摘要:
A composition includes a metal alloy matrix comprising iron and a plurality of nanoparticles dispersed within the metal alloy matrix. Each nanoparticle of the plurality comprises an oxide of a rare-earth metal and at least one metal selected from the group consisting of tantalum, niobium, vanadium, and titanium. Some compositions include a metal alloy matrix comprising iron and a plurality of nanoparticles comprising at least two different oxides of rare-earth metals dispersed within the metal alloy matrix. Some methods include mixing an oxide of a rare-earth metal with a first metal and a second metal. Other methods include mixing a plurality of particles comprising at least one oxide of a rare-earth metal with a molten metal comprising iron. Each particle of the plurality may exhibit a density between about 6.9 g/cm3 and about 9.0 g/cm3.
摘要翻译:组合物包括金属合金基体,其包含铁和分散在金属合金基体内的多个纳米颗粒。 多个纳米颗粒的每一个都包括稀土金属的氧化物和选自钽,铌,钒和钛中的至少一种金属。 一些组合物包括包含铁的金属合金基体和分散在金属合金基体内的至少两种不同的稀土金属氧化物的纳米颗粒。 一些方法包括将稀土金属的氧化物与第一金属和第二金属混合。 其他方法包括将包含稀土金属的至少一种氧化物的多个颗粒与包含铁的熔融金属混合。 多个颗粒中的每个颗粒可以表现出约6.9g / cm 3至约9.0g / cm 3之间的密度。
摘要:
A sample of a biological material having individual-specific antibodies is contacted with an array of less than about 200 proteins on a support to bind some of the individual-specific antibodies to the proteins of the array to form immune complexes. A detection agent with an interacting protein for conjugation to a marker is applied to the array to detect the immune complexes and obtain an antibody profile, which is compared to a known antibody profile obtained from an individual. The array may further include control spots including human IgG to form control complexes and volume assessment spots including volume determination proteins to form volume complexes. Intensity of the control complexes may be detected to determine if results of the identifying are complete. Intensity of the volume complexes may be detected to determine if a volume of the sample is sufficient for an accurate result.
摘要:
Energy harvesting devices include a substrate and a plurality of resonance elements coupled to the substrate. Each resonance element is configured to collect energy in the visible and infrared light spectra and to reradiate energy having a 5 wavelength in the range of about 0.8 J.lm to about 0.9 J.lm. The resonance elements are arranged in groups of two or more resonance elements. Systems for harvesting electromagnetic radiation include a substrate, a plurality of resonance elements including a conductive material carried by the substrate, and a photovoltaic material coupled to the substrate and to at least one resonance element. The resonance elements 10 are arranged in groups, such as in a dipole, a tripole, or a bowtie configuration.