Abstract: The disclosure belongs to the technical field of well completion engineering in oil and gas engineering, and particularly relates to a high-flow-conductivity proppant and its preparation method. The high-flow-conductivity proppant includes dumbbell-shaped framework granules and an oil-soluble film coating layer coated on the surfaces of the framework granules; the oil-soluble film coating layer melts when meeting oil at the temperature of 30-120° C. The high-flow-conductivity proppant prepared by the method has low bulk density, and the problems that the traditional proppant cannot be transported to the far end of a crack, has poor flow conductivity and the like can be effectively solved.

Abstract: A liquid ammonia phase-change cooling type hybrid power thermal management system. The system comprises an injector, a liquid ammonia hydrogen supply system, a liquid ammonia common rail pipe, a fuel oil common rail pipe and an oil tank, wherein the liquid ammonia hydrogen supply system comprises a liquid ammonia storage tank, an ammonia pumping system, a flow dividing system and an ammonia inlet and outlet system, the fuel oil common rail pipe is respectively connected with the oil tank and a one-way oil inlet of the injector, the liquid ammonia common rail pipe is respectively connected with the ammonia inlet and outlet system and a one-way ammonia inlet of the injector, an ammonia inlet pipe and an ammonia return pipe are arranged in the ammonia inlet and outlet system, the ammonia pumping system comprises a liquid ammonia storage flow divider, a low-pressure pump and a high-pressure pump.

Abstract: A liquid ammonia phase-change cooling type hybrid power thermal management system. The system comprises an injector, a liquid ammonia hydrogen supply system, a liquid ammonia common rail pipe, a fuel oil common rail pipe and an oil tank, wherein the liquid ammonia hydrogen supply system comprises a liquid ammonia storage tank, an ammonia pumping system, a flow dividing system and an ammonia inlet and outlet system, the fuel oil common rail pipe is respectively connected with the oil tank and a one-way oil inlet of the injector, the liquid ammonia common rail pipe is respectively connected with the ammonia inlet and outlet system and a one-way ammonia inlet of the injector, an ammonia inlet pipe and an ammonia return pipe are arranged in the ammonia inlet and outlet system, the ammonia pumping system comprises a liquid ammonia storage flow divider, a low-pressure pump and a high-pressure pump.

Abstract: The present disclosure describes a system, method and software applications for predicting the KAM of a subject for a plurality of gait cycles of a subject. At least one sensor attachable adjacent to the ankle of at least one leg of the subject provides accelerometer and gyroscopic data for the plurality of gait cycles. A processing means receives subject parameters and accelerometer and gyroscopic data from the at least one sensor for evaluation by a neural network of predicted KAM values for the plurality of gait cycles of the subject. The neural network is configured via determining KAM values for each of the plurality of subjects from measurements during a plurality of gait cycles and other parameters.

Abstract: A motor-driven friction braking device for a rail vehicle is mainly composed of a torque motor, a speed reduction mechanism, an electromagnetic brake (1), a screw nut transmission mechanism and a brake friction pair (9). The torque motor, a screw (7), the speed reduction mechanism and the electromagnetic brake (1) are coaxially mounted; the torque motor is fixedly connected to the speed reduction mechanism, and the speed reduction mechanism is fixedly connected to the screw (7); the screw (7) is in non-self-locking threaded connection with a nut (8), and one end of the nut (8) is connected to the brake friction pair (9); and the electromagnetic brake (1) is mounted on the screw (7).

Abstract: Among the various aspects of the present disclosure is the provision of compositions of imaging agents and methods for use in imaging ACE2 expression profiles. The ACE2 expression profiles may be used for detecting, monitoring, and evaluating ACE2 associated diseases, disorders, and conditions.

Abstract: Disclosed is a method of modeling a multi-mode degradation process and predicting a remaining useful life, which belongs to the technical field of health management.

Abstract: The present disclosure describes a system, method and software applications for predicting the KAM of a subject for a plurality of gait cycles of a subject. At least one sensor attachable adjacent to the ankle of at least one leg of the subject provides accelerometer and gyroscopic data for the plurality of gait cycles. A processing means receives subject parameters and accelerometer and gyroscopic data from the at least one sensor for evaluation by a neural network of predicted KAM values for the plurality of gait cycles of the subject. The neural network is configured via determining KAM values for each of the plurality of subjects from measurements during a plurality of gait cycles and other parameters.

Abstract: A motor-driven friction braking device for a rail vehicle is mainly composed of a torque motor, a speed reduction mechanism, an electromagnetic brake (1), a screw nut transmission mechanism and a brake friction pair (9). The torque motor, a screw (7), the speed reduction mechanism and the electromagnetic brake (1) are coaxially mounted; the torque motor is fixedly connected to the speed reduction mechanism, and the speed reduction mechanism is fixedly connected to the screw (7); the screw (7) is in non-self-locking threaded connection with a nut (8), and one end of the nut (8) is connected to the brake friction pair (9); and the electromagnetic brake (1) is mounted on the screw (7).

Abstract: Embodiments of the disclosure generally relate to a method of processing a semiconductor substrate at a temperature less than 250 degrees Celsius. In one embodiment, the method includes loading the substrate with the deposited film into a pressure vessel, exposing the substrate to a processing gas comprising an oxidizer at a pressure greater than about 2 bars, and maintaining the pressure vessel at a temperature between a condensation point of the processing gas and about 250 degrees Celsius.

Abstract: A method for evaluating performance of a data communication network with a receiver node arranged to initiate data transmission thereto from a plurality of transmitter nodes directly connected therewith includes applying to the data communication network a stochastic operation model arranged to model operation characteristics of the receiver node, and determining throughput or power consumption of the network based on the stochastic operation model. The operation characteristics include: a duration of a work cycle of the receiver node (Tcycle), the work cycle including an active data communication period (Thold) and an inactive period (Tdwell); a duration of the active data communication period (Thold), the active data communication period including a number of data communication events; the number of data communication events in the work cycle n; a duration of the respective data communication events (Ttx); and amount of data successfully received at the receiver node in the work cycle (Bi).

Abstract: A method for evaluating performance of a data communication network with a receiver node arranged to initiate data transmission thereto from a plurality of transmitter nodes directly connected therewith includes applying to the data communication network a stochastic operation model arranged to model operation characteristics of the receiver node, and determining throughput or power consumption of the network based on the stochastic operation model. The operation characteristics include: a duration of a work cycle of the receiver node (Tcycle), the work cycle including an active data communication period (Thold) and an inactive period (Tdwell); a duration of the active data communication period (Thold), the active data communication period including a number of data communication events; the number of data communication events in the work cycle n; a duration of the respective data communication events (Ttx); and amount of data successfully received at the receiver node in the work cycle (Bi).