Abstract: Provided herein are methods of generating models for prognosing cardiovascular outcomes for monitored subjects infected with an etiologic agent (e.g., severe acute respiratory syndrome coronavirus-2 or another etiologic agent). Related methods, systems, and computer program products are also provided.

Abstract: The present disclosure provides a mute, belongs to a field of musical instruments, the mute includes a mute body, the mute body is narrow at top and wide at bottom, and is in a shape of a gourd, the mute body includes an inlet half-body and an outlet half-body, a surface of the mute body is patterned, and the surface of the mute body is sanded and polished to form a smooth surface, a surface of the inlet half-body is bonded with a plurality of elastic members.

Abstract: A mouthpiece includes a main body including a mouthpiece storage bag and an accessory storage bag. The mouthpiece storage bag is integrated with the accessory storage bag. A plurality of clip stands and a plurality of connecting bracket are arranged in the mouthpiece storage bag. Each of the clip stands is bonded in the mouthpiece storage bag through a first VELCRO arranged on a bottom portion of each of the clip stands and each of the connecting brackets is bonded in the mouthpiece storage bag through a second VELCRO arranged on a bottom portion of each of the connecting brackets. The plurality of connecting brackets is sequentially arranged adjacent to one side of the plurality of clip stands. A groove receiving a mouthpiece is formed between each two adjacent connecting brackets. The mouthpiece storage bag stores mouthpieces and clips and the accessory storage bag stores accessories.

Abstract: A method for guiding ablation of atrial or ventricular arrhythmia in a patient's heart is provided. A digital representation of the electrical functioning of atria or ventricles of the patient's heart is generated based on imaging data of the patient's heart that reveals the presence of adipose tissue. The arrhythmias arising in the presence of the adipose tissue in the digital representation of the patients atria or ventricles are determined. The method further includes identifying, in the digital representation, ablation targets that need to be ablated to terminate determined arrhythmias; executing, in the digital representation, a mock-up of a clinical ablation procedure of the patient to determine the electrical response of the patients heart to ablating the ablation targets, and to determine whether the heart continues to generate new arrhythmias post-procedure; and generating a final set of ablation targets based on the mock-up of the clinical ablation procedure.

Abstract: A noise cancellation system comprises a first noise cancellation apparatus configured to process an I-channel signal, wherein an I-channel differential mode second-order intermodulation component and an I-channel common mode second-order intermodulation component cancel each other in the first noise cancellation apparatus and a second noise cancellation apparatus configured to process a Q-channel signal, wherein a Q-channel differential mode second-order intermodulation component and a Q-channel common mode second-order intermodulation component cancel each other in the second noise cancellation apparatus.

Abstract: A method and terminal device for reducing an image distortion are provided. The terminal device generates a radio frequency signal from a first path that includes first and second low pass filters of in-phase and quadrature phase paths, produces a decomposed signal having in-phase and quadrature phase components in digital form based on the radio frequency signal, and determines a phase mismatch between the in-phase and quadrature phase components. Then the terminal device generates a bandwidth adjustment value based on the determined phase mismatch, further generates, based on the bandwidth adjustment value, first and second bandwidth control signals; and adjusts a bandwidth of first and second low pass filters based on the first and second bandwidth control signals to reduce the phase mismatch.

Abstract: A noise cancellation system comprises a first noise cancellation apparatus configured to process an I-channel signal, wherein an I-channel differential mode second-order intermodulation component and an I-channel common mode second-order intermodulation component cancel each other in the first noise cancellation apparatus and a second noise cancellation apparatus configured to process a Q-channel signal, wherein a Q-channel differential mode second-order intermodulation component and a Q-channel common mode second-order intermodulation component cancel each other in the second noise cancellation apparatus.

Abstract: A noise cancellation system comprises an I-channel mixer configured to receive a radio frequency signal from an antenna and an intermediate frequency signal from a local oscillator, a Q-channel mixer configured to receive the radio frequency signal from the antenna and a phase-shifted intermediate frequency signal from the local oscillator, a first noise cancellation apparatus connected with the I-channel mixer, wherein an I-channel differential mode second-order intermodulation component and an I-channel common mode second-order intermodulation component cancel each other in the first noise cancellation apparatus and a second noise cancellation apparatus connected with the Q-channel mixer, wherein a Q-channel differential mode second-order intermodulation component and a Q-channel common mode second-order intermodulation component cancel each other in the second noise cancellation apparatus.

Abstract: A noise cancellation system comprises an I-channel mixer configured to receive a radio frequency signal from an antenna and an intermediate frequency signal from a local oscillator, a Q-channel mixer configured to receive the radio frequency signal from the antenna and a phase-shifted intermediate frequency signal from the local oscillator, a first noise cancellation apparatus connected with the I-channel mixer, wherein an I-channel differential mode second-order intermodulation component and an I-channel common mode second-order intermodulation component cancel each other in the first noise cancellation apparatus and a second noise cancellation apparatus connected with the Q-channel mixer, wherein a Q-channel differential mode second-order intermodulation component and a Q-channel common mode second-order intermodulation component cancel each other in the second noise cancellation apparatus.

Abstract: A noise cancellation structure comprises a trans-impedance stage couple to an output of a mixer of a receiver and a noise cancellation stage connected in parallel with the trans-impedance stage, wherein the noise cancellation stage comprises a first adjustable resistor and a second adjustable resistor connected in series with the first adjustable resistor, wherein the first adjustable resistor and the second adjustable resistor are configured such that the first adjustable resistor has a first resistance variation portion and the second adjustable resistor has a second resistance variation portion equal to the first resistance variation in an opposite direction and a magnitude of the first resistance variation is so selected that differential mode second-order noise and common mode second-order noise cancel each other.

Abstract: A noise cancellation structure comprises a trans-impedance stage couple to an output of a mixer of a receiver and a noise cancellation stage connected in parallel with the trans-impedance stage, wherein the noise cancellation stage comprises a first adjustable resistor and a second adjustable resistor connected in series with the first adjustable resistor, wherein the first adjustable resistor and the second adjustable resistor are configured such that the first adjustable resistor has a first resistance variation portion and the second adjustable resistor has a second resistance variation portion equal to the first resistance variation in an opposite direction and a magnitude of the first resistance variation is so selected that differential mode second-order noise and common mode second-order noise cancel each other.

Abstract: A power detector circuit, comprising a first section configured to receive a radio frequency (RF) input signal and to generate a first voltage, wherein the first voltage comprises a voltage proportional to the sum of a mean-square of the RF input signal and a voltage characteristic of the first section, and wherein the first voltage is an input to a third section, a second section configured to generate a second voltage, wherein the second voltage comprises a combination of an output voltage and a voltage proportional to the voltage characteristic of the first section, wherein the output voltage is proportional to a root-mean-square of the RF input signal, the third section configured to generate the output voltage by combining the first voltage and the second voltage, wherein the second section creates a negative feedback loop for the third section and the output voltage generated by the third section is an output of the power detector circuit.