Abstract: An alkaline electrolyte membrane (AEM) electrolytic device is designed, assembled and evaluated for water electrolysis, composed of an anode for oxygen generation, a cathode for hydrogen generation, an AEM for anion conductive, and two internal water gas separators (IWGSs) for water supplying to the anode and the cathode, respectively, as well as for automatically separation of water and gas produced from the anode or from the cathode. There is no need of pumps for water and gas circulations and no external water gas separators (EWGSs) that are used by conventional water electrolyzers. The corrosive electrolyte is confined in the water containers and will not damage other parts in the electrolytic device. Furthermore, novel multi gas diffusion layers are used to replace the conventional single gas diffusion layer. The pore size is configurable to improve the mass transfer of electrochemical reactions and promote electrochemical reactions.

Abstract: Legged robots and methods for controlling legged robots are disclosed. In some examples, a mobile robot includes a frame, legs, and a control system. The mobile robot includes, for each leg, a motor coupled to the frame, the motor comprising a motor arm and a spring attachment point, the motor being configured to rotate the motor arm and the spring attachment point. The mobile robot includes, for each leg, a spring coupled to the spring attachment point of the motor and the leg, wherein the leg includes a track shaped to receive the motor arm, and wherein the leg is coupled to the spring such that the motor arm is within the track. The control system is configured, e.g., by virtue of appropriate programming, to control the motors to cause the mobile robot to move.

Abstract: A method and system for control of BTM of electric drive bulldozers based on deep learning includes: obtaining a micro-load segment at the current moment in a load spectrum and predicting a micro-load segment at the next moment using a Markov chain model; carrying out a weighting calculation of the segment using the segment at the current moment and a corresponding weight thereof with the predicted segment and a corresponding weight thereof, and then calculating motor speed, motor torque, and a state of charge (SOC) of battery under the segment after being weighted; and taking a real-time battery outlet water temperature, occupant cabin temperature, occupant cabin target temperature and ambient temperature as well as the motor speed, motor torque and SOC, so as to obtain a control strategy of the electric compressor speed, and further obtain a method for control of BTM of the electric drive bulldozer.

Abstract: A quadruped robotic dog equipped with a center of gravity adjustment mechanism is disclosed and includes a base, a shoulder assembly connected to the base, a head assembly connected to a top of the shoulder assembly, and a leg assembly connected to sides of the shoulder assembly. The base includes a chassis and a battery box. The chassis includes an elastic slide rail, which defines two cap holes. The battery box includes a slide bar, both ends of which each include a round cap. The round caps of the battery box are operative to be snapped-fitted with the cap holes, and the slide bar of the battery box is operative to slide within the elastic slide rail.

Abstract: A robotic animal puzzle is assembled from flat board pieces. The robotic animal includes a head portion. The head portion includes a neck group, a torso portion, including a holder 15 for an optional battery, multiple leg portions, and a tail portion. Those pieces and groups are connected using either interlocking mechanisms or flexible linkages to form the robotic animal-shaped puzzle. Movement and gestures may be controlled by an externally connected processor powered by an on-board battery pack. A pull and drag mechanism is provided to conveniently tune the center of mass. Slots allow the screw that connects the battery holder to slide.

Abstract: Legged robots and methods for controlling legged robots are disclosed. In some examples, a mobile robot includes a frame, legs, and a control system. The mobile robot includes, for each leg, a motor coupled to the frame, the motor comprising a motor arm and a spring attachment point, the motor being configured to rotate the motor arm and the spring attachment point. The mobile robot includes, for each leg, a spring coupled to the spring attachment point of the motor and the leg, wherein the leg includes a track shaped to receive the motor arm, and wherein the leg is coupled to the spring such that the motor arm is within the track. The control system is configured, e.g., by virtue of appropriate programming, to control the motors to cause the mobile robot to move.

Abstract: A robotic animal puzzle is assembled from flat board pieces. The robotic animal includes a head portion. The head portion includes a neck group, a torso portion, including a holder 15 for an optional battery, multiple leg portions, and a tail portion. Those pieces and groups are connected using either interlocking mechanisms or flexible linkages to form the robotic animal-shaped puzzle. Movement and gestures may be controlled by an externally connected processor powered by an on-board battery pack. A pull and drag mechanism is provided to conveniently tune the center of mass. Slots allow the screw that connects the battery holder to slide.

Abstract: An apparatus comprises an acoustic sensing system and an analyzer module. The acoustic sensing system is positioned relative to an object, wherein the acoustic sensing system detects acoustic emissions and generates acoustic waveform data for the acoustic emissions detected. The analyzer module is implemented in a computer system that receives load data and the acoustic waveform data for the object, generates a plurality of frequency distribution functions using the acoustic waveform data, and generates a frequency distribution function time evolution image containing a plurality of points of each of the plurality of frequency distribution functions.

Abstract: An apparatus comprises an acoustic sensing system and an analyzer module. The acoustic sensing system is positioned relative to an object, wherein the acoustic sensing system detects acoustic emissions and generates acoustic waveform data for the acoustic emissions detected. The analyzer module is implemented in a computer system that receives load data and the acoustic waveform data for the object, generates a plurality of frequency distribution functions using the acoustic waveform data, and generates a frequency distribution function time evolution image containing a plurality of points of each of the plurality of frequency distribution functions.

Abstract: A method and apparatus for analyzing an object using acoustic emissions. Load data is received for the object. Acoustic waveform data is received for the object from an acoustic sensing system. The acoustic waveform data represents acoustic emissions emanating from the object and is detected using the acoustic sensing system. A plurality of bins is created for the load data. A plurality of frequency distribution functions is generated for the plurality of bins using the acoustic waveform data. A set of learning algorithms is applied to the plurality of frequency distribution functions and the acoustic waveform data to generate an output that allows an operator to more easily and quickly assess a structural integrity of the object.

Abstract: A method and apparatus for analyzing an object using acoustic emissions. Load data is received for the object. Acoustic waveform data is received for the object from an acoustic sensing system. The acoustic waveform data represents acoustic emissions emanating from the object and is detected using the acoustic sensing system. A plurality of bins is created for the load data. A plurality of frequency distribution functions is generated for the plurality of bins using the acoustic waveform data. A set of learning algorithms is applied to the plurality of frequency distribution functions and the acoustic waveform data to generate an output that allows an operator to more easily and quickly assess a structural integrity of the object.