Abstract: The present invention comprises a high performance, vertical, zero-net mass-flux, synthetic jet actuator for active control of viscous, separated flow on subsonic and supersonic vehicles. The present invention is a vertical piezoelectric hybrid zero-net mass-flux actuator, in which all the walls of the chamber are electrically controlled synergistically to reduce or enlarge the volume of the synthetic jet actuator chamber in three dimensions simultaneously and to reduce or enlarge the diameter of orifice of the synthetic jet actuator simultaneously with the reduction or enlargement of the volume of the chamber. The jet velocity and mass flow rate for the present invention will be several times higher than conventional piezoelectric synthetic jet actuators.

Abstract: A wireless communication unit comprises a transmitter having a forward path comprising a power amplifier, PA, and a feedback path operably coupled to the power amplifier, wherein the feedback path comprises a coupler arranged to feed back a portion of a signal to be transmitted and a controller logic module arranged to control a power control value of the power amplifier, such that the forward path and feedback path form a closed loop power control. The controller logic module is arranged to determine a gain variation in the transmitter and provide attenuation to a transmit signal passing therethrough on a transmit slot by transmit slot basis and instruct a power backoff where necessary.

Abstract: In a wireless 802.15.4 communication system (300), a high-speed data frame structure (340) is provided which uses the 802.15.4 SHR structure that is spread modulated to obtain the synchronization benefits of the 802.15.4 protocol, but which uses a modified data frame structure for the payload portion without using spreading to thereby improve its transmission efficiency. The transmission efficiency can be further increased by increasing the size of the data payload (and correspondingly, the frame length size).

Abstract: A method is described for treating fabrics, yarns and individual fibers to improve the mechanical properties thereof, for example their wrinkle-resistance, by treating the fabric, yarn, and fibers in a solution containing polymer nanoparticles. The nanoparticles include two sizes of particles and an appropriate selection of the nanoparticles to control the degree and mode of cross-linking in the fabric with corresponding control of the mechanical properties. The nanoparticles can be provided with an electrical charge that can be opposite in sign to any charge carried by the fabric in order to enhance the formation of a polymer film on the fabric.

Abstract: Embodiments include transmitters, wireless devices, and methods for performing loop delay and gain control. In a transmitter, a gain application element receives and combines digital input samples and a digital gain signal to generate gain-compensated digital samples. A power amplifier receives and amplifies an analog version of the gain-compensated digital samples to generate an antenna output signal. A feedback path generates an analog feedback signal from the antenna output signal, to produce a sequence of digital feedback samples from the analog feedback signal, and generates the digital gain signal from the sequence of digital feedback samples and a loop gain estimate. A loop delay and gain calculator calculates a loop delay estimate from the gain-compensated digital samples and the sequence of digital feedback samples, and calculates the loop gain estimate using the loop delay estimate, the gain-compensated digital samples, and the sequence of digital feedback samples.

Abstract: Systems and methods are provided for controlling headroom of an amplifier (e.g., in a transmitter). A method comprises obtaining a target output power for a current interval and obtaining a target headroom for a subsequent interval. The method continues by adjusting, during the current interval, the power output capability of the amplifier based on the target headroom and adjusting the input power of an input signal based on the target output power, such that the output power of the amplifier is substantially constant during the current interval as the power output capability of the amplifier is adjusted.

Abstract: In a wireless 802.15.4 communication system (300), a high-speed data frame structure (340) is provided which uses the 802.15.4 SHR structure that is spread modulated to obtain the synchronization benefits of the 802.15.4 protocol, but which uses a modified data frame structure for the payload portion without using spreading to thereby improve its transmission efficiency. The transmission efficiency can be further increased by increasing the size of the data payload (and correspondingly, the frame length size).

Abstract: A compound having the general formula I or a conjugate thereof, wherein various groups are as defined in the specification. A composition includes: (i) a compound having the general formula I or a conjugate thereof; and (ii) at least one surfactant selected from cationic surfactants and nonionic surfactants. Also disclosed is a preparation method for the composition and a kit comprising the composition. Further disclosed is a method for identifying and differentiating erythroblasts, basophils and lymphocytes simultaneously using the composition according to the present disclosure.

Abstract: The present disclosure provides a white blood cell differentiation reagent comprising a fluorescent dye compound of Formula I, wherein R1, R2, R3, R4, Y? and n are as defined in the specification. The present disclosure also provides a white blood cell detection kit comprising the white blood cell differentiation reagent, and a method of differentiating white blood cells using the white blood cell differentiation reagent.

Abstract: A reagent for classifying and counting leukocytes containing (1) a cyanine fluorescent dye; and (2) a glycoside compound; a reagent kit containing the reagent for classifying and counting leukocytes as well as its preparation process; and a process for classifying and counting blood cells using the reagent or kit are provided. Using the reagent, kit and/or process provided, leukocytes can be classified and counted in four groups with a high degree of differentiation and a better classification among each subpopulation of leukocytes, especially in that it successfully addresses the indistinct classification between lymphocytes and monocytes and between the eosinophils and neutrophils in a scattergram.

Abstract: The synthesis of thiophene based conducting polymer molecular actuators, exhibiting electrically triggered molecular conformational transitions is reported. Actuation is believed to be the result of conformational rearrangement of the polymer backbone at the molecular level, not simply ion intercalation in the bulk polymer chain upon electrochemical activation. Molecular actuation results from ?-? stacking of thiophene oligomers upon oxidation, producing a reversible molecular displacement that leads to surprising material properties, such as electrically controllable porosity and large strains. The existence of active molecular conformational changes is supported by in situ electrochemical data. Single molecule techniques have been used to characterize the molecular actuators.

Abstract: An adhesion bond between a metallic surface layer and a second surface is formed by treating the layers with a material comprising sulphur-containing molecules. The sulphur-containing molecules are applied as a surface treatment of the surfaces, so that the sulphur-containing molecules act as a coupling agent to bond chemically to both substrates form nanometer-sized structures on the surfaces. The nanometer-sized structures are incorporated into a self-assembly interlayer in between the surfaces, with the interlayer forming a bond to both surfaces.

Abstract: Techniques and technologies are provided for compressing differential samples of bandwidth-limited data and coding the compressed differential samples to reduce bandwidth and power consumption when communicating bandwidth-limited data over a serial interface which couples one integrated circuit to another integrated circuit.

Abstract: The present disclosure provides a reagent for blood analysis which may include: (1) a compound having the general formula I as a fluorescent dye, wherein n, X, R1, R2, R3, R4, R5 and Y? are as defined in the specification; (2) a surfactant selected from cationic surfactants, zwitterionic surfactants and anionic surfactants. The present disclosure also provides a method to perform blood analysis including the following steps of: (a) mixing the blood sample with the reagent for blood analysis disclosed to form a cell suspension; (b) detecting the scattered light signals and fluorescence signals from the cells; and (c) differentiating and counting the cells in the blood in terms of the scattered light signals and fluorescence signals.

Abstract: Embodiments of wireless devices and transmitters are provided, which perform embodiments of automatic gain control methods. The embodiments of wireless devices and transmitters include a ramp generator, a digital gain signal generator, a combiner, and a variable gain amplifier. The ramp generator is adapted to receive a gain control input signal and to generate a gain ramp signal based on the gain control input signal. The digital gain signal generator is adapted to generate and incorporate a gain arc into a digital gain signal. A combiner is adapted to receive and combine a digital input signal with the digital gain signal, to generate a pre-compensated digital signal. The variable gain amplifier is adapted to apply gains indicated in the gain ramp signal to a pre-adjusted analog signal, which is generated based on the pre-compensated digital signal, in order to generate a gain-adjusted analog signal.

Abstract: A technique of operating a communication device includes identifying a signal null associated with a signal to be transmitted on a first communication channel. A channel gain of the first communication channel is adjusted at a time that substantially coincides with the signal null to reduce transient noise spectrum coupled from the first communication channel to one or more second communication channels.

Abstract: This invention provides a method of detecting pathogens comprising the steps of: (a) contacting a sufficient amount of biofunctional magnetic nanoparticles with an appropriate sample for an appropriate period of time to permit the formation of complexes between the pathogens in the sample and the nanoparticles; (b) using a magnetic field to aggregate said complexes; and (c) detecting said complexes. The method may further comprise the additional step of removing said complexes. The biofunctional magnetic nanoparticles are preferably a conjugate of vancomycin and FePt. The pathogens may be bacteria or viruses, and the sample may be a solid, liquid, or gas. Detection may involve conventional fluorescence assay, enzyme-linked immunosorbent assay (ELISA), optical microscope, electron microscope, or a combination thereof. The sensitivity of detection for the method is at least as low as 10 colony forming units (cfu) of the pathogens in one milliliter of solution within one hour.

Abstract: Cyanine compounds having the general formula I for staining biological samples, wherein R1, R2, X, Y, A1 and A2 are as defined in the specification. These kinds of compounds may show good light illumination stability, have a maximum absorption peak around 640 nm that may not change as a function of ambient temperature, have rapidly increased fluorescence intensity upon binding to nucleic acids to form compound/nucleic acid complexes, and have a light spectrum in the near-infrared region, thereby effectively reducing interference from background fluorescence and increasing the accuracy of the detection when used as a staining agent for nucleic acids in a flow cytometer. The compounds provided can be used as a staining agent for erythroblasts in the blood.

Abstract: Apparatus, systems, and methods are provided for controlling the output of a transmitter using a digital error signal. A method comprises generating a digital reference signal based on a baseband input signal and converting the digital reference signal to an analog reference signal. The method further comprises generating an analog error signal in response to a difference between the analog reference signal and an analog output signal. The method further comprises generating a digital error signal from the analog error signal, and generating an input signal for the transmitter based on the baseband input signal and the digital error signal.

Abstract: Embodiments include methods and apparatus for performing transmit power control. A gain application element receives a sequence of digital input samples and a digital gain signal, and combines the digital gain signal with the digital input samples to generate a sequence of gain-compensated digital samples. A power amplifier receives and amplifies an analog version of the gain-compensated digital samples in order to generate an antenna output signal. A feedback path generates an analog feedback signal from the antenna output signal, produces a sequence of digital feedback samples from the analog feedback signal, and generates difference values based on the digital feedback samples. When a specified type of constant modulus symbol is represented in the antenna output symbol, the feedback path accumulates the difference values into an accumulated error value, and produces the digital gain signal from the accumulated error value.