摘要:
A multi-tone transceiver including: a channel controller and a plurality of components forming a transmit path and a receive path. The channel controller configured to determine bit-loading for each successive symbol or tone set based on a 1st noise margin target for a first subset of tones in each tone set dedicated to transport of a robust communications channel (RCC) and based on a 2nd noise margin target less than the 1st noise margin target for remaining tones in each tone set dedicated to a standard communications channel (SCC). The plurality of components forming the transmit and receive paths are responsive to the channel controller to select for data modulated on a given tone at least one of smaller constellations and higher gain scaling levels when the given tone corresponds to an RCC tone as compared to an SCC tone, whereby the first set of tones dedicated to the RCC exhibit greater immunity to noise variations than the remaining tones dedicated to the SCC.
摘要:
A multi-tone transceiver including: a channel controller and a plurality of components forming a transmit path and a receive path. The channel controller configured to determine bit-loading for each successive symbol or tone set based on a 1st noise margin target for a first subset of tones in each tone set dedicated to transport of a robust communications channel (RCC) and based on a 2nd noise margin target less than the 1st noise margin target for remaining tones in each tone set dedicated to a standard communications channel (SCC). The plurality of components forming the transmit and receive paths are responsive to the channel controller to select for data modulated on a given tone at least one of smaller constellations and higher gain scaling levels when the given tone corresponds to an RCC tone as compared to an SCC tone, whereby the first set of tones dedicated to the RCC exhibit greater immunity to noise variations than the remaining tones dedicated to the SCC.
摘要:
A plasma processing chamber and methods for operating the chamber are provided. An exemplary chamber includes an electrostatic chuck for receiving a substrate and a dielectric window connected to a top portion of the chamber. An inner side of dielectric window faces a plasma processing region that is above the electrostatic chuck and an outer side of the dielectric window is exterior to the plasma processing region. Inner and outer coils are disposed above the outer side of the dielectric window, and the inner and outer coils are connected to a first RF power source. A powered grid is disposed between the outer side of dielectric window and the inner and outer coils. The powered grid is connected to a second RF power source that is independent from the first RF power source.
摘要:
Electrochemical processes and apparatus for obtaining metals from metal salts, including for separating alkali metal and alcohols from alkali metal alkoxide compounds, are disclosed. Aqueous solutions of metal alkoxides or metal carbonates are converted to metals by electrochemical processes which may also be integrated into processes for the production of borohydrides, such as sodium borohydride.
摘要:
A method for identifying hair conditioner-resistant hair-binding peptides is described. The hair conditioner-resistant hair-binding peptides bind strongly to hair from a hair conditioner matrix and are stable therein. Peptide-based benefit agents, such as hair conditioners and hair colorants, based on the hair conditioner-resistant hair binding peptides are described. The peptide-based hair conditioners and hair colorants consist of a hair conditioner-resistant hair-binding peptide coupled to a hair conditioning agent or a coloring agent, either directly or through an optional spacer. Hair care and hair coloring product compositions comprising these peptide-based hair conditioners and colorants are also described.
摘要:
Systems and methods are disclosed for processing a low resolution image by performing a high resolution edge segment extraction on the low resolution image; performing an image super resolution on each edge segment; performing reconstruction constraint reinforcement; and generating a high quality image from the low quality image.
摘要:
Peptides have been identified that bind with high affinity to body surfaces, such as, hair, skin, nails, teeth, gums, and oral cavity surfaces. Diblock and triblock peptide-based body surface coloring reagents formed by coupling a body surface binding peptide to a pigment binding peptide, either directly or through a spacer, are described. The peptide-based body surface coloring reagents may be used in conjunction with pigments to color body surfaces.
摘要:
Reactors with a dynamic compression elements that control the catalyst bed structure and hydrodynamic conditions inside the reactor in response to physical and structural changes in the catalyst bed, and methods of operating catalytic reactors are provided. The reactors are adjustable and/or can self-adjust in response to changes in the packing of the catalyst bed due, for example, to the attrition of the catalyst. The catalyst reactor designs improve operation of fixed bed reactors and enable the use of a variety of catalysts and supports, including materials that would not typically be considered for use in fixed bed reactors, such as those with limited durability or with moderate mechanical strength.
摘要:
Solid self-stabilized borohydride fuel compositions, fuel cartridges, related methods of preparation and hydrogen generation are provided. The fuel compositions comprise mixtures of at least one borohydride salt with a cation selected from the group consisting of alkali metal cations, alkaline earth metal cations, aluminum cation, zinc cation, and ammonium cation, preferably sodium borohydride, and at least one hydroxide salt with a cation selected from the group consisting of alkali metal cations, alkaline earth metal cations, aluminum cation, zinc cation, and ammonium cation, preferably sodium hydroxide.