摘要:
The present invention includes new hybrid hydrogel scaffolds comprised of a polyoxyethylene-polyoxypropylene (block) copolymer (a “poloxamer”) and a self-assembling peptide, which maintain the mechanical and bioactive properties of its individual constituents (as compared to when the individual constituents are scaffolds or hydrogels by themselves). The hydrogels of the invention can include a combination of materials from different origins or with different properties that provides a hybrid material that meets the multiple needs of a scaffold for tissue engineering.
摘要:
Methods and apparatus for efficiently communicating small amounts of information relatively frequently in a wireless communications system are described. An access point's uplink timing frequency structure includes a set of dedicated uplink communications resources, e.g., expression advertisement interval air link resources, which may be in addition to regular traffic channel resources. The set of dedicated uplink communications resources comprises a small fraction of the total uplink communications resources. An individual one of the set of dedicated uplink communications resources can carry a small amount of information bits. An expression advertisement interval occurs relatively frequently. A wireless communications device, registered with the access point, is allocated one of the set of dedicated uplink resources. The wireless communications device can transmit information using its allocated resource in both a sleep state and an active state.
摘要:
The invention provides an apparatus and a corresponding method for controlling radiation characteristics of a transmitter of a wireless device. The wireless device includes a transmitting portion that includes one or more antennas that are characterized by one or more radiation patterns. The wireless device further comprises a sensor system for determining an orientation of the transmitting portion and a control system that is operatively coupled to the sensor system and configured to control the supply of power to each antenna depending on the orientation of the transmitting portion.
摘要:
Techniques for transmitting signals on shared resources in a manner to detect and/or combat collision are described. In an aspect, a terminal may transmit a signal on a subset of resource elements in a resource block, and at least one null resource element with no signal may be used to detect for collision of the signal. In another aspect, different terminals may simultaneously transmit their signals on different subsets of resource elements in a resource block. These different subsets of resource elements may be pseudo-randomly selected to randomize interference. In one design, a terminal may determine a resource block to use for transmission of a signal, select a subset of the resource elements in the resource block, and transmit the signal on the selected resource elements, e.g., to at least one other terminal for peer-to-peer communication. The signal may be a peer discovery signal, a paging signal, etc.
摘要:
A distributed amplifier is provided that is broadband and band pass with controllable bandwidth. In the distributed amplifier circuit, termination impedance of the input transmission line is not matched with the characteristics impedance of the input transmission line and/or the termination impedance of the output transmission line is not matched with the characteristics impedance of the output transmission line, thus providing the broadband and band pass with controllable bandwidth attributes.
摘要:
Disclosed is a feedback detection circuit, adapted to provide a feedback detection signal wherein a converting circuit provides a driving power source to drive a load according to the feedback detection signal. The feedback detection circuit comprises an operational conversion circuit and a signal limitation circuit. The operational conversion circuit generates the feedback detection signal in response to a level of a detected node of the load. The operational conversion circuit has an operational amplifier, which modulates the level of the feedback detection signal in response to the level of the detected node. The signal limitation circuit is coupled to the operational conversion circuit for clamping a level rang of the feedback detection signal.
摘要:
The present invention relates to new electronic devices including a layer comprising a photoactive material and metal Schiff base complex, wherein the metal Schiff base complex is present as a host for the photoactive material or in a layer between the cathode and the photoactive material containing layer, or both.
摘要:
The present invention relates to charge transport compositions. The invention further relates to electronic devices in which there is at least one active layer comprising such charge transport compositions.
摘要:
Techniques for performing automatic gain control (AGC) at a terminal in a wireless communication network are described. In an aspect, the terminal may use different receiver gain settings to receive different types of signals in different time intervals. The terminal may determine a receiver gain setting for each signal type and may use the receiver gain setting to receive signals of that signal type. In another aspect, the terminal may determine a receiver gain setting for a future time interval based on received power levels for peer terminals expected to transmit in that time interval. The terminal may measure received power levels of signals received from a plurality of terminals. The terminal may determine a set of terminals expected to transmit in the future time interval and may determine the receiver gain setting for the future time interval based on the measured received power levels.
摘要:
The present disclosure provides novel poly(phenylene ethynylene) (PPE) compounds, methods for synthesizing these compounds, and materials and substances incorporating these compounds. The various PPEs show antibacterial, antiviral and antifungal activity.