Abstract: A liquid storage tank includes a housing, a piston located in the housing, a cover, an elastic element, and an outlet pipe. The cover is attached to the housing and has a support post extending toward the piston. The piston, the housing, and the cover define a tank chamber. The tank chamber is filled with cooling liquid. The elastic element is connected with the tank hosing and the piston. The elastic element is free from contact with the cooling liquid. The outlet pipe communicates with the tank chamber. An extension direction of an opening of the outlet pipe is not parallel to a direction of movement of the elastic element. When the cooling liquid is decreased, the piston compressed the tank chamber such that the elastic element is released. The tank chamber is continuously compressed by pairing the elastic element and the piston.

Abstract: An antiferroelectric field effect transistor (Anti-FeFET) of a memory cell includes an antiferroelectric layer instead of a ferroelectric layer. The antiferroelectric layer may operate based on a programmed state and an erased state in which the antiferroelectric layer is in a fully polarized alignment and a non-polarized alignment (or a random state of polarization), respectively. This enables the antiferroelectric layer in the FeFET to provide a sharper/larger voltage drop for an erase operation of the FeFET (e.g., in which the FeFET switches or transitions from the programmed state to the erased state) relative to a ferroelectric material layer that operates based on switching between two opposing fully polarized states.

Abstract: A tumor recurrence prediction device is provided, which includes a data extraction circuit, a memory, and a processor. The data extraction circuit extracts multiple patient clinical data and multiple slice image information; a memory stores multiple instructions; a processor is connected to the data extraction circuit and the memory, and is configured to load and execute the multiple instructions to: receive the multiple patient clinical data and the multiple slice image information; generate clinical feature information and tumor image feature information according to the multiple patient clinical data and the multiple slice image information; train a prediction model according to the clinical feature information and the tumor image feature information; and predict tumor recurrence for patient information of a patient using the prediction model. In addition, a tumor recurrence prediction method is also disclosed here.

Abstract: The present disclosure provides an operating method of an automatic analysis system on magnetic resonance imaging (MRI), which includes steps as follows. Images are received from of the subject's brain from the MRI machine. Contrast-enhanced T1-weighted images and T2-weighted images are obtained from the images, and the pre-processing is performed on the images. The ratio of T2-weighted images to contrast-enhanced T1-weighted images is calculated to generate contrast-enhanced images. The unsupervised clustering is performed on the region of interest in the contrast-enhanced image to separate a cystic part and a non-cystic part so as to calculate the feature parameters. After radiosurgery is performed on the brain tumor corresponding to the region of interest, the volume change of the tumor is analyzed. The linear regression analysis of the feature parameters and the volume change of the tumor is performed for prognostic evaluation.

Abstract: A one-way wrench includes a handle, a toothed wheel, a detent, a rod and a gear train. The handle includes a shank and a head. The head is formed at an end of the shank and includes a chamber in communication with the tunnel. The toothed wheel is rotationally inserted in the chamber of the head. The detent is pivotally connected to the head and elastically engaged with the toothed wheel so that the head rotates the toothed wheel in a one-way manner. The rod is movable in the tunnel of the shank in a reciprocated manner. The gear train is arranged between the rod and the toothed wheel to convert the reciprocating of the rod to on-and-off rotation of the toothed wheel.

Abstract: The disclosure is related to a calibration system for active noise cancellation and a speaker apparatus. The calibration system receives the signals with feedforward control or feedback control active noise cancellation. A gain adjustment element is used to adjust a gain of the signals, and a path selection switch is used to switch connection to a first operational amplifier or to a second operational amplifier. In addition to driving signals, the operational amplifier is also used to adjust a phase of the output signals. The calibration system is able to balance the gain of the signals with active noise cancellation and adjust the phase of signals of a left-channel circuit and a right-channel circuit through gain-phase adjustment. The related speaker apparatus is such as an earphone with the feedforward ANC control circuit, the feedback ANC control circuit, or a hybrid ANC circuit.

Abstract: The disclosure is related to a calibration system for active noise cancellation and a speaker apparatus. The calibration system receives the signals with feedforward control or feedback control active noise cancellation. A gain adjustment element is used to adjust a gain of the signals, and a path selection switch is used to switch connection to a first operational amplifier or to a second operational amplifier. In addition to driving signals, the operational amplifier is also used to adjust a phase of the output signals. The calibration system is able to balance the gain of the signals with active noise cancellation and adjust the phase of signals of a left-channel circuit and a right-channel circuit through gain-phase adjustment. The related speaker apparatus is such as an earphone with the feedforward ANC control circuit, the feedback ANC control circuit, or a hybrid ANC circuit.

Abstract: A reference frequency calibration module is provided. The reference frequency calibration module includes an oscillator, a frequency divider, a phase-locked loop (PLL) and a frequency-offset calibration unit. The frequency divider couples to the oscillator. The phase-locked loop couples to the frequency divider. The frequency-offset calibration unit couples to the frequency divider and the phase-locked loop. The oscillator is configured for operatively generating an oscillating signal having an oscillating frequency. The frequency divider divides the oscillating signal having the oscillating frequency by a first division parameter to generate a first clock signal having a first reference frequency. The phase-locked loop generates a second clock signal having a second reference frequency according to the first clock signal. The frequency-offset calibration unit is configured for operatively generating the first division parameter according to the second clock signal.

Abstract: A one-way wrench includes a handle, a toothed wheel, a detent, a rod and a gear train. The handle includes a shank and a head. The head is formed at an end of the shank and includes a chamber in communication with the tunnel. The toothed wheel is rotationally inserted in the chamber of the head. The detent is pivotally connected to the head and elastically engaged with the toothed wheel so that the head rotates the toothed wheel in a one-way manner. The rod is movable in the tunnel of the shank in a reciprocated manner. The gear train is arranged between the rod and the toothed wheel to convert the reciprocating of the rod to on-and-off rotation of the toothed wheel.

Abstract: A reference frequency calibration module is provided. The reference frequency calibration module includes an oscillator, a frequency divider, a phase-locked loop (PLL) and a frequency-offset calibration unit. The frequency divider couples to the oscillator. The phase-locked loop couples to the frequency divider. The frequency-offset calibration unit couples to the frequency divider and the phase-locked loop. The oscillator is configured for operatively generating an oscillating signal having an oscillating frequency. The frequency divider divides the oscillating signal having the oscillating frequency by a first division parameter to generate a first clock signal having a first reference frequency. The phase-locked loop generates a second clock signal having a second reference frequency according to the first clock signal. The frequency-offset calibration unit is configured for operatively generating the first division parameter according to the second clock signal.

Abstract: This invention provides a common mode noise cancellation circuit for the unbalanced signals. The unbalanced signals come from a signal source with a first signal terminal and a second signal terminal having a first grounding potential. The common mode noise cancellation circuit comprises a grounding terminal and a subtractor. The grounding terminal with a second grounding potential is electrically coupled to the second signal terminal of the signal source through an impedance unit. The subtractor comprises a first receiving terminal, a second receiving terminal and a signal output terminal. The first receiving terminal and the second receiving terminal are electrically coupled to the first signal terminal and the second signal terminal respectively for receiving the unbalanced signals. The subtractor subtracts the noise coming from the first receiving terminal and the noise coming from the second receiving terminal to reduce the output noise of the signal output terminal.

Abstract: This invention provides a common mode noise cancellation circuit for the unbalanced signals. The unbalanced signals come from a signal source with a first signal terminal and a second signal terminal having a first grounding potential. The common mode noise cancellation circuit comprises a grounding terminal and a subtractor. The grounding terminal with a second grounding potential is electrically coupled to the second signal terminal of the signal source through an impedance unit. The subtractor comprises a first receiving terminal, a second receiving terminal and a signal output terminal. The first receiving terminal and the second receiving terminal are electrically coupled to the first signal terminal and the second signal terminal respectively for receiving the unbalanced signals. The subtractor subtracts the noise coming from the first receiving terminal and the noise coming from the second receiving terminal to reduce the output noise of the signal output terminal.

Abstract: A voltage amplitude limiting circuit of a full differential circuit is provided for limiting voltage levels of a differential signal. The voltage amplitude limiting circuit includes a reference voltage generating unit and a replacing circuit. The reference voltage generating unit generates a high reference voltage and a low reference voltage. The replacing circuit is coupled to the reference voltage generating unit, a first input terminal and a second input terminal. When voltage at the first input terminal is greater than the high reference voltage, the replacing circuit uses the high reference voltage to replace the voltage at the first input terminal to serve as an output. When voltage at the first input terminal is less than the low reference voltage, the replacing circuit uses the low reference voltage to replace the voltage at the first input terminal to serve as an output.

Abstract: An electronic device includes a first base member, a second base member detachably connected to the first base member and a connection structure. The connection structure includes an assembling latch and a magnetic piece. The assembling latch is located in the first base member. The magnetic piece is located in the second base member and provides a driving force. The magnetic piece attracts the assembling latch, the assembling latch partially moves out the first base member and is partially received in the second base member to connect and assemble the first base member and the second base member side by side. When the first base member and the second base member are detached, the assembling latch moves back to and is received in the first base member.

Abstract: A voltage amplitude limiting circuit of a full differential circuit is provided for limiting voltage levels of a differential signal. The voltage amplitude limiting circuit includes a reference voltage generating unit and a replacing circuit. The reference voltage generating unit generates a high reference voltage and a low reference voltage. The replacing circuit is coupled to the reference voltage generating unit, a first input terminal and a second input terminal. When voltage at the first input terminal is greater than the high reference voltage, the replacing circuit uses the high reference voltage to replace the voltage at the first input terminal to serve as an output. When voltage at the first input terminal is less than the low reference voltage, the replacing circuit uses the low reference voltage to replace the voltage at the first input terminal to serve as an output.

Abstract: An electronic device includes a first base member, a second base member detachably connected to the first base member and a connection structure. The connection structure includes an assembling latch and a magnetic piece. The assembling latch is located in the first base member. The magnetic piece is located in the second base member and provides a driving force. The magnetic piece attracts the assembling latch, the assembling latch partially moves out the first base member and is partially received in the second base member to connect and assemble the first base member and the second base member side by side. When the first base member and the second base member are detached, the assembling latch moves back to and is received in the first base member.

Abstract: The present invention discloses a voltage detection type overcurrent protection device, which applies to the output stage of a CMOS Class-D audio amplifier. Generally, a Class-D audio amplifier is used to drive a high-load loudspeaker; therefore, it needs a high-current driver. When there is a short circuit in the load, the high current will burn out the driver stage. The present invention detects the output voltage to indirectly monitor whether the output current is too large. Once an overcurrent is detected, the output-stage transistor is turned off to stop high current lest the circuit be burned out.

Abstract: The present invention discloses a voltage detection type overcurrent protection device, which applies to the output stage of a CMOS Class-D audio amplifier. Generally, a Class-D audio amplifier is used to drive a high-load loudspeaker; therefore, it needs a high-current driver. When there is a short circuit in the load, the high current will burn out the driver stage. The present invention detects the output voltage to indirectly monitor whether the output current is too large. Once an overcurrent is detected, the output-stage transistor is turned off to stop high current lest the circuit be burned out.