Abstract: A system and method for passively and actively monitoring and determining the location of at least one mechanical anomaly for a power steering system of a vehicle is disclosed. The system includes one or more processors and a memory coupled to the processors. The memory stores a baseline waveform and data comprising program code that, when executed by the one or more processors, causes the system to receive at least one excitation signal and at least one response signal. The power steering system creates the response signal in response to receiving the excitation signal. In response to receiving the excitation signal and the response signal, the system is caused to estimate the frequency response between the excitation signal and the response signal based on a fast Fourier transform (FFT) algorithm. The frequency response is represented by an estimated waveform.

Abstract: Embodiments of the present disclosure relate to a FinFET device having gate spacers with reduced capacitance and methods for forming the FinFET device. Particularly, the FinFET device according to the present disclosure includes gate spacers formed by two or more depositions. The gate spacers are formed by depositing first and second materials at different times of processing to reduce parasitic capacitance between gate structures and contacts introduced after epitaxy growth of source/drain regions.

Abstract: An earth-boring tool includes a bit body and an actuator coupled to the bit body. The actuator includes at least one shape memory material configured to transform from a first shape to a second shape to move a bearing pad or a cutting element with respect to the bit body in response to a stimulus. A transformation from the first shape to the second shape includes a phase change from a first solid phase to a second solid phase. A depth-of-cut limiter includes a bearing element and at least one shape memory material coupled to the bearing element. A method of forming or servicing a wellbore includes rotating an earth-boring tool within a wellbore, applying a stimulus to an actuator to convert at least one shape memory material from a first shape to a second shape, and continuing to rotate the earth-boring tool within the wellbore after applying the stimulus.

Abstract: The present invention provides a method of manufacturing a gate stack structure. The method comprises providing a substrate. A dielectric layer is then formed on the substrate and a gate trench is formed in the dielectric layer. A bottom barrier layer, a first work function metal layer and a top barrier layer are formed in the gate trench in sequence. Afterwards, a silicon formation layer is formed on the top barrier layer and filling the gate trench. A planarization process is performed, to remove a portion of the silicon formation layer, a portion of the bottom barrier layer, a portion of the first work function metal layer, and a portion of the top barrier layer. Next, the remaining silicon formation layer is removed completely, and a conductive layer is filled in the gate trench.

Abstract: A control system for a power steering system includes an error module that generates an error signal based on a difference of an estimated output vector and an output vector, a scaling module that calculates a feedback correction signal based on the error signal and an observer gain value, an extended state vector estimation module that determines an extended state vector estimate based on the feedback correction signal and a motor torque command, and a gain module that applies a gain to the extended state vector estimate to generate an estimated driver torque signal, the estimated driver torque signal is applied in control of the power steering system.

Abstract: Methods and apparatus are provided for damage risk indication of a steering system of a vehicle. The apparatus includes a sensor system and a processing device. The sensor system is configured to detect a velocity of a servo unit of a steering system of the vehicle. The processing device is configured to determine an acceleration value of the servo unit and to compare the acceleration value, velocity values and thresholds of the servo unit with an acceleration value threshold, and to generate a warning signal if the acceleration value of the servo unit exceeds the acceleration value threshold. Thus, a damage risk is determined and the vehicle can be subjected to further damage investigation.

Abstract: A compound green-energy purification device includes a casing having a water inlet port and a gas outlet port, a filtration module arranged in the casing and includes a first filtration assembly and a second filtration assembly, an electrolysis unit arranged in the casing, and a separation base arranged in the casing and located between the filtration module and the electrolysis unit. The separation base includes a pipe and at least one hole formed therein such that the hole is located in a bottom of the separation base. Water is supplied through the water inlet port and flows through the hole of the separation base into the electrolysis unit to allow the electrolysis unit to heat and convert the water into steam, which moves through the pipe, the first filtration assembly, and the second filtration assembly so as to separate the water and the gas from each other.

Abstract: A power source supply system for a magnetic resonance imaging (MRI) apparatus that has multiple loads operating in a magnetic field environment, has an AC/DC conversion circuit that converts a supplied AC current to a first DC current having a predetermined first voltage, a branching element that supplies the first DC current in separate paths respectively to the multiple loads, a switching power source, disposed in each of the loads that converts the first DC current to a second DC current having a second voltage capable of being supplied to the load, with a switching frequency of the switching power source being set such that a positive integer frequency multiple thereof is offset from the Larmor frequency of the MRI apparatus.

Abstract: A method for rate adaptation in a communication device includes, during a time interval, transmitting over a wireless channel to a peer communication device both (i) communication packets that carry user data, at a communication data rate, and (ii) channel-probing packets for probing channel conditions, at a channel-probing data rate that is derived from the communication data rate. A first statistical performance of the communication packets, and a second statistical performance of the channel-probing packets, are estimated over the time interval. The communication data rate is set for a subsequent time interval based on at least one of the first statistical performance and the second statistical performance.

Abstract: A method for executing a V2V data exchange includes determining if a host vehicle is communicatively connected to a seeder vehicle, and transmitting a prompt between the two vehicles to initiate a resource discovery process. The seeder vehicle wirelessly transmits to the host vehicle a Bloom filter with multiple file IDs mapped to a bit array. Each file ID has a corresponding file version number encoded to the bit array. The method then determines if a local file ID of an existing file stored via the host vehicle is a member of the Bloom filter; if so, the host vehicle determines if a remote file version number encoded to a counterpart file ID is newer than a file version number of the local file ID. If the remote file version number is newer, the seeder vehicle transmits the data file associated with the counterpart file ID to the host vehicle.

Abstract: A power steering assembly includes a steering unit and a motor. A controller includes a processor and tangible, non-transitory memory on which is recorded instructions for executing a method of self-diagnosis for the assembly. If a plurality of enabling conditions is met, the steering unit is caused to rotate through a plurality of angles from an original position, via a command to the motor. The steering unit is caused to rotate first in a forward direction up to a predefined maximum angle, second in a reverse direction up to a negative of the predefined maximum angle and third in the forward direction back to the original position. The controller is configured to obtain motor torque data characterizing torque of the motor at the plurality of angles. The assembly is controlled based at least partially on the motor torque data and predetermined baseline data.

Abstract: A method for fabricating semiconductor device includes the steps of first forming a gate dielectric layer on a substrate; forming a gate material layer on the gate dielectric layer, and removing part of the gate material layer and part of the gate dielectric layer to form a gate electrode, in which a top surface of the gate dielectric layer adjacent to two sides of the gate electrode is lower than a top surface of the gate dielectric layer between the gate electrode and the substrate. Next, a first mask layer is formed on the gate dielectric layer and the gate electrode, part of the first mask layer and part of the gate dielectric layer are removed to form a first spacer, a second mask layer is formed on the substrate and the gate electrode, and part of the second mask layer is removed to forma second spacer.

Abstract: Aspects of the disclosure can relate to a process for transmitting a pump-off pressure profile for formation integrity testing within a limited bandwidth. For example, a process may include measuring pump-off pressure data. The pump-off pressure data represents the pump-off pressure profile. The method also includes determining, from the pump-off pressure data, a pump-off pressure data portion corresponding to a formation integrity testing characteristic. The method also includes compressing pump-off pressure data portion with a compression protocol to produce compression bits. The compression bits representing the pump-off pressure data portion corresponding to the formation integrity testing characteristic. The method also includes transmitting, via a communication module, the compression bits to a computing device.

Abstract: Embodiments described herein methods and systems for channel correlation based user detection in an uplink multiuser transmission of a multiple-input multiple-output (MIMIO) network. In some embodiments, the channel correlation based user detection may be used in 802.11 UL MUMIMO systems. For example, an access point may detect whether a client station responds to a trigger frame and then adjust a channel matrix accordingly to reflect whether the client station is responsive. The access point may then decode received data signals based on the adjusted channel matrix that reflects whether a client station has transmitted.

Abstract: A semiconductor device includes a substrate, a gate structure, a spacer, a mask layer, and at least one void. The gate structure is disposed on the substrate, and the gate structure includes a metal gate electrode. The spacer is disposed on sidewalls of the gate structure, and a topmost surface of the spacer is higher than a topmost surface of the metal gate electrode. The mask layer is disposed on the gate structure. At least one void is disposed in the mask layer and disposed between the metal gate electrode and the spacer.

Abstract: In a field-programmable gate array (FPGA) configuration circuit, and a radio-frequency unit and a magnetic resonance system having a configuration circuit, the configuration circuit has at least two FPGA modules, each FPGA module being individually connected to a bus; at least two storage devices, each storage device storing a configuration file; one of the at least two FPGA modules being connected to the at least two storage devices separately, and an input end, connected separately to the at least two storage devices. A selection signal is provided for selecting one of the at least two storage devices. The FPGA module connected to the at least two storage devices reads a configuration file stored in a storage device selected on the basis of the selection signal, and sends, via the bus, the configuration file that has been read to the FPGA module other than the FPGA module connected to the at least two storage devices.

Abstract: Technical solutions are described for generating a pedestrian detection warning in a vehicle. An example method includes constructing, by a vehicle controller, a pedestrian zone based on pedestrian information that is received from a traffic controller. The method further includes computing, by the vehicle controller, a vehicle trajectory that predicts a path for the vehicle. The method further includes determining, by the vehicle controller, a minimal distance between the pedestrian zone and the vehicle trajectory. The method further includes predicting, by the vehicle controller, a time to collision by computing a time for the vehicle to reach a location corresponding to the minimal distance along the vehicle trajectory. The method further includes in response to the time to collision being below a threshold, generating, by the vehicle controller, a warning for an operator of the vehicle.

Abstract: Doping techniques for fin-like field effect transistors (FinFETs) are disclosed herein. An exemplary method includes forming a fin structure, forming a doped amorphous layer over a portion of the fin structure, and performing a knock-on implantation process to drive a dopant from the doped amorphous layer into the portion of the fin structure, thereby forming a doped feature. The doped amorphous layer includes a non-crystalline form of a material. In some implementations, the knock-on implantation process crystallizes at least a portion of the doped amorphous layer, such that the portion of the doped amorphous layer becomes a part of the fin structure. In some implementations, the doped amorphous layer includes amorphous silicon, and the knock-on implantation process crystallizes a portion of the doped amorphous silicon layer.

Abstract: Disclosed is a method for simulation of a microscopic flow of pre-crosslinked gel suspension liquid in a porous medium, including the steps of: establishing a simulation area of the porous medium based on a two-dimensional core CT slice image and subjecting the simulation area to numerical grid discretization; setting initial position and original shape of pre-crosslinked gel particles to generate virtual boundary mark points; marking the type of numeric grid nodes; calculating the force of the fluid on each virtual boundary mark point according to the momentum change of the numerical grid nodes on the boundary of the pre-crosslinked gel particles; calculating the contact force on each virtual boundary mark point using a particle contact action model; calculating the bending recovery force and the stretching recovery force for each virtual boundary mark point based on the current shape and original shape of the pre-crosslinked gel particles; and calculating the velocity and displacement of each virtual bounda

Abstract: A method for fabricating semiconductor device includes the steps of first forming a gate dielectric layer on a substrate; forming a gate material layer on the gate dielectric layer, and removing part of the gate material layer and part of the gate dielectric layer to form a gate electrode, in which a top surface of the gate dielectric layer adjacent to two sides of the gate electrode is lower than a top surface of the gate dielectric layer between the gate electrode and the substrate. Next, a first mask layer is formed on the gate dielectric layer and the gate electrode, part of the first mask layer and part of the gate dielectric layer are removed to form a first spacer, a second mask layer is formed on the substrate and the gate electrode, and part of the second mask layer is removed to form a second spacer.