摘要:
A photoconductor that includes, for example, a backing layer, a supporting substrate, a photogenerating layer, and a charge transport layer, and wherein the outermost layer of said backing layer is comprised of a self crosslinked acrylic resin and a crosslinkable siloxane component.
摘要:
A composite article that can be used as a substrate for coated conductors is disclosed. The composite substrate has at least three layers in which one or more inner layers of Ni—W alloys with 9 at. %-13 at. % W and two outer layers of Ni—W alloys with 3 at. %-9 at. % W. The content of W element gradually decreases from the inner layers to the outer layers. The composite substrate can be prepared using a process of designing and sintering composite ingot, rolling composite ingot and then annealing composite substrate. The composite substrate have a dominant cube texture on the outer layer of the whole substrate which have a weaker magnetism and higher strength than that of a single Ni-5 at. % W alloy substrate. the preformed composite ingot is prepared by filling and compacting the Ni—W mixed powders into a mould layer by layer according to the structure of composite substrate; in said mould, said preformed composite ingots are with the total thickness of 5-250 mm, the thickness of two outer layers being 2/9-⅔ of the total thickness. The method of the present invention can obtain the composite substrate with high mechanical strength and reduced magnetization owing to the use of the Ni alloy with high W content in the inner layers of the composite substrate.
摘要:
Methods and systems for evaluating pigment dispersions with desired characteristics. More specifically, methods and systems for evaluating particle size of colorless or light color dispersions using a novel parameter described as particle size related scattering index (PSRSI).
摘要:
Various embodiments are disclosed relating to techniques to transmit data rate control signals for multicarrier wireless systems. According to an example embodiment, a wireless apparatus may be adapted to transmit at least a first data rate control (DRC) value via an in-phase channel and at least a second DRC value via a Quadrature-phase channel. The first DRC value may be associated with a first forward link carrier and the second DRC value may be associated with a second forward link carrier. In this manner, DRC values may be transmitted over both the I and Q channels, for example.
摘要:
An approach is provided for acknowledgement signaling in multi-carrier system. A plurality of acknowledgement signals are received corresponding to a plurality of transmission carriers. The transmission carriers are associated with a first direction of transmission. Some of the acknowledgement signals are allocated to a first transmitter branch, and remaining ones of the acknowledgement signals are allocated to a second transmitter branch. The plurality of acknowledgement signals are transmitted over a single transmission carrier associated with a second direction of transmission.
摘要:
A method, apparatus and system for scheduling data packets in a wireless communications system. The invention includes determining a priority for at least one data packet, wherein determining the priority of the data packet is based at least on a plurality of quality of service factors, wherein each of the plurality of QoS factors has a corresponding weighting factor and the determined priority includes minimum-performance guarantees. The invention further includes scheduling transmission of the at least one data packet based at least on the determined priority.
摘要:
Apparatus, and an associated method, for allocating resources in a communication system, such as a multi-code, multi-rate CDMA communication system. Communication indicia by which data to be communicated during operation of the communication system is coded and modulated is selected responsive to communication characteristics of the communication channel upon which the data is to be communicated. The levels of coding and modulating are determined responsive to measured levels of the communication characteristics on the channel. Also, a scheduler by which to schedule packet communication upon a shared communication channel is provided.
摘要:
In one aspect this invention provides a wireless communication system (5) that includes a mobile station (20) having circuitry (22, 24, 26) and a computer program controlling operation of the circuitry to make a measurement from a forward channel to obtain a measurement result value, to quantize the measurement result value in accordance with an N level quantization to obtain a code, and to report the code on a reverse channel. The wireless communication system further includes a base station (10) having circuitry (12, 14, 16) and a computer program controlling operation of the circuitry to convert the code to a number, to compare the number to a threshold and, if the comparison indicates that the number may not accurately reflect the measurement result value, to adjust the number using an adjustment factor. In these embodiments the adjustment factor, also referred to as Delta, may be a constant, or it may be a variable. In one embodiment Delta is computed by the mobile station, and is reported to the base station.
摘要:
A method and apparatus is provided for the overlaid operation of two or more wireless communication systems where one of the two systems is a small-scale or indoor system and the other is a large-scale or outdoor system. The indoor system monitors the operation of the outdoor system and detects which part of the available radio resources are temporarily not in use or interference-free in the outdoor system. The indoor system dynamically selects an unused outdoor channel for indoor operation. The indoor radio traffic is divided into TDD time slots with the slots being used for monitoring the existing radio communication on other outdoor channels so that fast changes according to changing traffic and interference conditions are possible. Synchronization, timing and phase control may be added to assist in the maintenance of an error-free communication network.
摘要:
This invention relates to the compounds represented by general formula (I) and the processes for their preparation, wherein R is selected from C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.6 cycloalkyl, phenyl unsubstituted or substituted by a halogen atom or nitro group, biphenyl unsubstituted by a halogen atom or nitro group, naphthyl unsubstituted or substituted by a halogen atom or nitro group. The compounds of this invention are used to prepare agents for prevention and treatment of AIDS and drugs against malaria and toxoplasmosis. ##STR1##