Abstract: The present disclosure relates to a harmonics cancellation circuit and a vector synthesis device using a harmonics cancellation circuit. A harmonics cancellation circuit according to an embodiment of the present disclosure includes a plurality of capacitors that one end is connected to a source node of a plurality of amplifiers receiving a plurality of quadrature phase signals, respectively; and a virtual ground to which the other end of each of the plurality of capacitors is commonly connected, wherein the source node of the plurality of amplifiers may be connected to a plurality of current controllers, respectively.

Abstract: The present disclosure relates to an apparatus and a method for detecting a relative phase. The apparatus includes: a signal superposition unit configured to receive and switch a first input signal and a second input signal having a phase delay ?d with respect to the first input signal so that the first input signal and the second input signal pass through a sensing resistor or a sensing capacitor, respectively, and to superpose and output the passed signals; a signal power detection unit configured to detect power of the signal output from the signal superposition unit; and a differential signal detection unit configured to generate a differential signal for the power of the signal output according to the switching of the first input signal and the second input signal in the signal superposition unit, and to detect the differential signal that changes according to the phase delay ?d.

Abstract: A radio frequency (RF) SPDT (single pole double throw) switch device for differential signal conversion is disclosed. According to one embodiment of the present disclosure, an RF SPDT switch device for differential signal conversion may include a central metal line; a first metal line and a second metal line connected to a first direction side of the central metal line; and a third metal line and a fourth metal line connected to a second direction side of the central metal line.

Abstract: A multi-channel beamforming chip-antenna package is provided. The multi-channel beamforming chip-antenna package includes a multi-channel beamforming chip including a plurality of channels, a plurality of waveguides, and a plurality of coupling circuits configured to combine the plurality of channels with the plurality of waveguides, wherein each of the plurality of coupling circuits may include a matching circuit configured to combine a wire bonded to each of the plurality of channels and a microstrip line and a converting circuit configured to combine the microstrip line and the plurality of waveguides.

Abstract: Proposed are an apparatus and a method for a high frequency phase shifter. The apparatus of the phase shifter configured for a beamforming system includes a first path switch controlling an activation and a deactivation of a first path, a first path resonator having an impedance capable of realizing a parallel resonance with an impedance seen at both ends of the first path switch when the first path switch is in a control mode for the deactivation, a first inductor rendering an impedance seen from a connected terminal to exhibit an inductive characteristic, a second inductor rendering an impedance seen from a connected terminal to exhibit an inductive characteristic, and a path-based impedance converter converting an impedance thereof into an impedance generating a phase delay or into an impedance such that an impedance as large as possible is seen at both terminals of a second path.

Abstract: A method and an artificial resuscitator device for controllable ventilation volume are provided. The artificial resuscitator includes: a gas control valve and a flow sensor set on an exhaust pipe of a respirator; a connecting tube branching off the exhaust pipe, with a three-way valve on a connecting tube that selectively communicates with a control side of the gas control valve, and a pressure relief opening on a side of the three-way valve that selectively communicates with the control side of the gas control valve; a control module that obtains a ventilation volume of the respirator based on a gas flow detected by the flow sensor and controls whether the three-way valve switches to a gas path according to the ventilation volume, to open or close the exhaust pipe through the gas control valve.

Abstract: The present invention provides an anesthesia ventilator device that dynamically monitors and regulates the partial pressure of carbon dioxide. The device includes a ventilator main body with inputs connected to an oxygen source, an air source, an anesthetic gas source, and a carbon dioxide source. The output of the ventilator main body is connected to a mask. This invention can solve the technical problem of respiratory alkalosis caused by excessive ventilation in conventional anesthesia ventilator devices, which leads to excessive elimination of carbon dioxide by the patient and a decrease in the partial pressure of carbon dioxide in the body.

Abstract: A display module includes a display panel, a middle frame, a film assembly, a backlight source and a backplane. The middle frame includes sub-frames each including a body and a support portion. The backplane includes a substrate and flanges. The sub-frames include at least one first sub-frame. The body of the first sub-frame is provided with a protrusion and the protrusion abuts against a corresponding flange. In the thickness direction of the flange, the orthographic projection of the protrusion on the substrate does not completely cover the orthographic projection of the corresponding flange on the substrate. The backlight source and the film assembly are sequentially arranged on the substrate, and the film assembly is located between the support portions and the flanges; and in the thickness direction of the flanges, an expansion gap is reserved between the protrusions and the film assembly.

Abstract: Provided is an associated query display system and a method thereof, and an associated query display method according to an embodiment includes the steps of: storing a query generation condition received from a manager terminal; receiving clinical trial data from a user terminal; determining whether the clinical trial data corresponds to the query generation condition; storing a query cause item that causes generation of a query; and outputting the query on the user terminal, and providing an associated query display function capable of tracking and accessing the query cause item.

Abstract: Disclosed is an ionophilic template comprising a microscopic array having a formula of Ma(SbxTeyVacz), wherein an M comprises one or more of Na, Li, K, Mg, Ca, Al, Zn, or alloys thereof; a Vac refers to vacancies present in a lattice of the microscopic array; wherein 0?a?100, 0?x?1; 0?y?1; and 0?z?1, wherein the microscopic array is dispersed within a metal comprising the M, and wherein the ionophilic template is a support material for a metal anode. Also disclosed are electrochemical cells comprising such templates and methods of making and using the same.

Abstract: A method for solving problems of ventilator off-line on patients based on mixed gas and device thereof, includes: mixing carbon dioxide and oxygen based on the initial mixed concentration, and delivering the mixed gas to the patient based on the ventilator device; real-time monitoring based on the delivery result The patient's partial pressure of carbon dioxide, and based on the partial pressure of carbon dioxide, gradiently changing the initial mixed concentration of carbon dioxide and oxygen; obtain the patient's respiratory muscle function data based on the gradient change result, and evaluating the respiratory muscle function data, and based on evaluation of the results completing weaning the patient off the ventilator.

Abstract: A CO2 and other gas compensation device includes a device body containing a respiratory gas CO2 compensation device. Inside the respiratory gas CO2 compensation device, an airway is set up. An output end of the airway is connected to a respiratory parameter detection module, which is connected to the respiratory terminal. Inside the respiratory terminal, a proximal pressure sensor and an end-tidal CO2 sensor are installed. The proximal pressure sensor and the end-tidal CO2 sensor are electrically connected to the respiratory gas CO2 compensation device. CO2 is compensated into the respiratory terminal through the respiratory gas CO2 compensation device. The respiratory parameter detection module can monitor parameters of incoming CO2.

Abstract: A control method for an arthroplasty surgical robot includes: capturing a bone image, transmitting the image to a computer system, and acquiring image data of a bone; selecting a suitable prosthesis model and placing it on a diseased joint for matching, wherein the overlapping part between the model and the bone is the part that needs to be removed and replaced; mounting signal sources; capturing a bone image again, including the signal sources and the joint part; establishing a coordinate system using the signal sources as the origin, and calculating and memorizing an interface between the model and the bone overlapping part and the coordinates of the interface in the coordinate system; and receiving the coordinates by a surgical robot, and obtaining the positional coordinates by the surgical robot of a part of the diseased joint that needs to be removed, and performing a surgical operation by the surgical robot.

Abstract: The application provides a backlight module, a display screen, a rearview mirror and a vehicle, and relates to the field of display technology, and the backlight module may greatly reduce a risk of separation between a reflection unit and a light-guide plate.

Abstract: A method and a ventilator for treating alcohol intoxication based on gas mixing ratio gas supply. The method includes: step (1): mixing oxygen and carbon dioxide gas to generate a target mixed gas, and mixing the target gas based on a preset breathing device so that the gas is delivered to the subject; step (2): monitoring the alcohol concentration in the subject in real time, and at the same time, monitor the partial pressure of carbon dioxide and the respiratory rate in the subject; step (3): stabilizing the partial pressure of carbon dioxide and the respiratory rate in the subject on the basis of the test, when the alcohol concentration in the subject's body meets the safe range, the control preset breathing device stops working. Use different proportions of carbon dioxide CO2 and oxygen O2 to mix the air supply.

Abstract: A method and a system for addressing hyperventilation based on a ventilator device execute steps of: obtaining a carbon dioxide partial pressure of a subject, and determining whether the subject has respiratory alkalosis based on the carbon dioxide partial pressure; obtaining vital sign data of the subject when the respiratory alkalosis occurs and determining a degree of the respiratory alkalosis based on the vital sign data; and adjusting a mixing ratio of oxygen and carbon dioxide based on the degree of the respiratory alkalosis, then re-supplying the subject, and monitoring a respiratory status in real time. The system can quickly and accurately determine whether a subject has respiratory alkalosis by monitoring the carbon dioxide partial pressure, and can effectively alleviate respiratory alkalosis by adjusting mixing ratio of oxygen and carbon dioxide, thus improving the efficiency and safety of resolving respiratory alkalosis caused by hyperventilation.

Abstract: This application relates to a backlight module, including a middle frame, a back plate, a light guide plate and an optical film. The back plate includes a base plate and a side plate, and in a light-exiting direction of the light guide plate, a distance between a top surface of the side plate and the base plate is less than or equal to a distance between a light-exiting surface of the light guide plate and the base plate. The middle frame includes a top wall and side wall, the top wall covers a portion of the optical film, the side wall is arranged at one side of the side plate away from the light guide plate, and the side wall has a first snap-fastener projecting in a direction close to the light guide plate and connected to the side plate. A display module and display device are further provided.

Abstract: A high-detection accuracy differential pressure flowmeter capable of being repeatedly disinfected, includes: a body and a processing module; wherein the body is connected to a gas pipeline, and a antihypertensive component is provided in the body. When the air flows through the body, it will enter from the first air inlet and enter through the first interface to the processing module. The air pressure is detected by the upstream gas. After the air flow passes through the antihypertensive components in the body to reduce the pressure, it will enter from the second air inlet.

Abstract: A breathing device with carbon dioxide compensation function includes an air source pipeline, a low pressure oxygen source pipeline, a high pressure oxygen source pipeline, a carbon dioxide source pipeline, a gas supply pipeline all of which are set in a ventilator and corresponding to an air source, a lower pressure oxygen source, a high pressure oxygen source and a carbon dioxide source respectively; and a breathing pipeline which is set outside the ventilator. The breathing device further includes a carbon dioxide flow regulation system for detecting and regulating carbon dioxide in the breathing gas which is transported by the breathing device for patients.