Abstract: A flow cell device is formed with: a plurality of cell recess portions adapted to cooperate with a plurality of sensor devices to confine a plurality of sample receiving space for receiving a liquid sample, respectively; a plurality of pairs of first and second guiding channels, each pair being in fluid communication with a respective one of the cell recess portions; a number of connecting recess portions each fluidly communicating the first and second guiding channels that respectively extend to a corresponding pair of the cell recess portions such that the liquid sample is able to flow through the sample receiving spaces sequentially; and inlet and outlet channels in fluid communication with the first and second guiding channels that respectively extend to a first one and a last one of the cell recess portions for introducing and discharging the liquid sample into and from the flow cell device, respectively.

Abstract: A light extracting device includes a dual light generating unit and a first order Bragg grating unit. The dual light generating unit is for receiving an input optical signal and a control signal, and for generating from the input optical signal first and second optical signals that have a phase difference there between. The phase difference is associated with the control signal. The first order Bragg grating unit is for receiving the first and second optical signals from the dual light generating unit, and for causing optical interference to occur between the first and second optical signals within a predetermined wavelength range to result in first and second output optical signals.

Abstract: A fabrication of a low dielectric constant nano-zeolite thin film includes preparing a zeolite nanoparticle suspension that includes zeolite nanoparticles suspended in a solvent and each zeolite nanoparticle includes pores with templating agents disposed inside the pores; performing a heat treatment on a substrate; vaporizing the zeolite nanoparticle suspension to form vaporized droplets containing the zeolite nanoparticles; using a gas to carry the vaporized droplets containing the zeolite nanoparticles into a plasma to perform a plasma reaction; and allowing the plasma-treated zeolite nanoparticles to deposit on the heated substrate to form a nano-zeolite thin film with a dielectric constant less than 2 and the templating agents removed.

Abstract: An evaluation device is adapted for providing a transceiver system with performance information thereof. The transceiver system models a channel between a transmitter and a receiver thereof using Nakagami distribution with a fading parameter. The evaluation device includes a signal-to-noise ratio (SNR) computing module, a capacity computing module, and an output module. The SNR computing module is operable to set an average SNR for the channel between the transmitter and the receiver, and to compute an expected value and variance of an effective SNR of the transceiver system according to the fading parameter and the average SNR. The capacity computing module is operable to compute an outage capacity of the transceiver system based upon the expected value and the variance of the effective SNR and a transmission outage parameter. The output module is operable to provide the transceiver system with the average SNR and the outage capacity.

Abstract: An evaluation device is adapted for providing a transceiver system with performance information thereof. The transceiver system includes a transmitter and at least one receiver, and models a channel between the transmitter and the receiver using Nakagami distribution with a fading parameter. The evaluation device includes a signal-to-noise ratio (SNR) setting module, an error rate computing module, and an output module. The SNR setting module is operable to set an average SNR for the channel between the transmitter and the receiver of the transceiver system. The error rate computing module is operable, based upon the fading parameter, the average SNR and a number of the receiver, to compute a bit error rate over the channel between the transmitter and the receiver. The output module is operable to provide the transceiver system with the average SNR and the bit error rate as the performance information of the transceiver system.

Abstract: A method for synthesizing aromatic amino acids according to one aspect of the present invention includes processes of: (a) of preparing a thermostable a Thermus thermophilus aspartate aminotransferase by culturing an E. coli BL21(DE3) cell transformed with a vector comprising a gene encoding the Thermus thermophilus aspartate aminotransferase; (b) contacting the thermostable Thermus thermophilus aspartate aminotransferase of (a) with an amino donor and an amino acceptor at a temperature range of 50-80° C. to obtain an aromatic amino acid; (c) precipitating the aromatic amino acid of (b); and (d) recovering the thermostable Thermus thermophilus aspartate aminotransferase.

Abstract: A vertical transistor includes a gate isolating layer flanking a stack of a source layer, a resilient active unit and a drain layer, and a gate layer formed on the gate isolating layer. The active unit includes an active layer formed between first and second barrier layers each having a thickness ranging from 4 nm to 40 nm. When an input voltage including a DC component and a ripple component is applied to the source layer, the active unit periodically vibrates as a result of the ripple component of the input voltage such that an induced AC current is generated based on a control voltage applied to the gate layer to flow to the drain layer. The induced AC current flowing to the drain layer serves as an AC output generated by the vertical transistor based on the input voltage. A method of enabling a vertical transistor to generate an AC output is also disclosed.

Abstract: An evaluation device is adapted for providing a transceiver system with performance information thereof. The transceiver system models a channel between a transmitter and a receiver thereof using Nakagami distribution with a fading parameter. The evaluation device includes a threshold value computing module, a signal-to-noise ratio (SNR) setting module, a probability computing module, and an output module. The threshold value computing module is operable to compute a threshold value based upon a given capacity. The SNR setting module is operable to set an average SNR for the channel between the transmitter and the receiver of the transceiver system. The probability computing module is operable, based upon the fading parameter, the average SNR and the threshold value, to compute an outage probability of the transceiver system corresponding to the given capacity. The output module is operable to provide the transceiver system with the average SNR and the outage probability.

Abstract: An AC-to-DC power converting device includes: a filter for filtering an external AC input voltage; a rectifier for rectifying the AC input voltage filtered by the filter to output a rectified voltage; a power factor corrector for receiving the rectified voltage from the rectifier to generate a boosted voltage; and a step-down converter for receiving the boosted voltage from the power factor corrector to output a DC output voltage. The power factor corrector includes first and second capacitors connected in series across an output side of the rectifier, a series connection of a first diode, a first inductor, a third capacitor, a second inductor and a second diode coupled to the output side of the rectifier, and first and second switches connected in series across the third capacitor. A common node between the first and second capacitors is coupled to a common node between the first and second switches.

Abstract: A system for determining concentration of a predetermined osteoarthritis biomarker in a urine sample includes first cell and first limiting elements, a quartz crystal microbalance (QCM) sensor device having a sample contacting side, and a monitoring device. The first cell element has a sensor confronting side formed with a recess portion. The first limiting element is disposed at the sensor confronting side, is disposed to surround the recess portion, contacts the sample contacting side, and cooperates with the recess portion and the sample contacting side to confine a sample receiving space for receiving the urine sample. The QCM sensor device includes a quartz resonator and an antibody applied to the quartz resonator and capable of binding with the biomarker, generates a concentration signal corresponding to mass of the biomarker that binds to the antibody, and is coupled to the monitoring device to provide the concentration signal thereto for processing thereby.

Abstract: A system for computing machine parameters of an induction machine includes a relation providing module and a circuit parameter computing module. The relation providing module is operable to provide a relationship between slip rates and primary side resistances of the induction machine and a relationship between the slip rates and primary side reactances of the induction machine. The circuit parameter computing module is operable to perform a parameter computing process according to the relationships obtained from the relation providing module. The parameter computing process includes the steps of: a) generating a set of initial values of equivalent circuit parameters of the induction machine; b) updating the initial values; c) calculating a cumulative resistance error and a cumulative reactance error; and d) repeating steps b) and c) until the cumulative resistance error and the cumulative reactance error are smaller than first and second error thresholds, respectively.

Abstract: A QPM waveguide includes an optical substrate having periodic domain-inverted regions and non-inverted regions which are arranged alternately, and a waveguide part passing through the domain-inverted regions and non-inverted regions. The substrate is divided into at least two sections each of which has a wave input facet and a wave output facet. At least one band-pass filter layer is disposed on the wave input facet of one section to filter out a signal wave for preventing back conversion so that the energy of the conversion wave can increase. A method for preventing the back conversion is also disclosed.

Abstract: A vertical transistor includes a gate isolating layer flanking a stack of a source layer, a resilient active unit and a drain layer, and a gate layer formed on the gate isolating layer. The active unit includes an active layer formed between first and second barrier layers each having a thickness ranging from 4 nm to 40 nm. When an input voltage including a DC component and a ripple component is applied to the source layer, the active unit periodically vibrates as a result of the ripple component of the input voltage such that an induced AC current is generated based on a control voltage applied to the gate layer to flow to the drain layer. The induced AC current flowing to the drain layer serves as an AC output generated by the vertical transistor based on the input voltage. A method of enabling a vertical transistor to generate an AC output is also disclosed.

Abstract: A light emitting diode (LED) lamp tube includes a lamp device including a circuit board, and a plurality of LEDs mounted on the circuit board. The circuit board is disposed in a tubular enclosure such that an inner peripheral surface of the enclosure is divided into a non-illuminated portion and a light-receiving portion. The tubular enclosure has a plurality of tapered protrusions extending from the light-receiving portion toward the LEDs. Each of the tapered protrusions converges from the light-receiving portion toward the LEDs. Each of the tapered protrusions further has a maximum width at an outer end thereof, which increases gradually from a middle portion of the light-receiving portion toward junctions of the light-receiving portion and the non-illuminated portion.

Abstract: An optical fiber communication method for communication between a transmitting terminal and a receiving terminal includes the steps of: providing an optical fiber to be coupled to the transmitting terminal and including a core that is provided with at least one second-order Bragg grating structure and a cladding that surrounds the core; configuring the transmitting terminal to output a data-carrying optical signal to one end of the core of the optical fiber for subsequent wireless transmission of the data-carrying optical signal via radiation through the second-order Bragg grating structure of the optical fiber; and configuring the receiving terminal to receive the signal radiated by the second-order Bragg grating structure of the optical fiber. A transmitting device is also disclosed.

Abstract: A glassy metal composite material includes: a Mg-based amorphous metal matrix; and a plurality of porous metal particles dispersed in the Mg-based amorphous metal matrix. The Mg-based amorphous metal matrix penetrates into pores in the porous metal particles. The porous metal particles have a hardness less than that of the Mg-based amorphous metal matrix.

Abstract: A signal analyzer includes a sampling unit, a filter unit coupled to the sampling unit, a computing unit coupled to the filter unit, and an output unit coupled to the computing unit. The sampling unit is operable to sample a time domain signal from a target system according to a predetermined sampling frequency to obtain a sampling signal. The filter unit is configured to perform filter processing upon the sampling signal so as to filter out harmonic frequency components from the sampling signal, thereby obtaining a fundamental frequency signal having a plurality of sample points. The computing unit is operable to compute a signal parameter set for each of temporally adjacent pairs of the sample points of the fundamental frequency signal. The output unit is configured to output information about dynamic behavior of the target system based upon the signal parameter sets computed by the computing unit.

Abstract: A light emitting diode (LED) lamp tube includes a circuit board and a tubular enclosure. The circuit board is disposed in the enclosure such that the enclosure is divided into a non-illuminated portion and a light-receiving portion. The light-receiving portion has two light-condensing side sections corresponding respectively to two sides of the circuit board, and a light-diffusing middle section connected between the light-condensing side sections. An outer surface of the light-receiving portion has a smoothly varying curvature. The light-condensing side sections cooperate with the light-diffusing middle section to diffuse uniformly LED light transmitted from an outer surface of the enclosure.

Abstract: A beamformer includes a number (T) of consecutive combining stages. A Tth combining stage includes a converging unit. Each of first to (T?1)th combining stages includes a plurality of converging units. The number of the converging units in a preceding combining stage is greater than that of a succeeding combining stage. Each converging unit in the first combining stage combines three arrival signals from an antenna array in accordance with corresponding weights so as to form an output signal. Each converging unit in each of second to (T?1)th combining stages combines output signals of three corresponding converging units in an immediately preceding combining stage in accordance with corresponding weights so as to form an output signal. The converging unit of the Tth combining stage combines the output signals from the converging units in the (T?1)th combining stage in accordance with corresponding weights so as to form an output signal that serves as an array pattern.

Abstract: A lens device includes a control unit, an objective lens, an image sensor, a light source, a detecting unit, and a tube assembly. The tube assembly includes a guide barrel, an outer tube, and a lens holder. The guide barrel is disposed on the control unit. The outer tube includes a tube body that is rotatably sleeve don the guide barrel, and a guiding portion. The lens holder includes a holder body having a set of projections driven by the guiding portion. The image sensor is electrically coupled to the control unit. The objective lens is optically aligned with the image sensor. The light source is coupled electrically to the control unit. The detecting unit generates a detector output indicating angular orientation of the outer tube. The control unit is responsive to the detector output to control intensity of light outputted by the light source.