Abstract: A piston for an internal combustion opposed-piston engine includes a crown part, a skirt part, and an outer part. The crown part includes a first ring belt region for supporting compression rings and an end surface shaped to form a combustion chamber with an end surface of an opposing piston. The skirt part includes a sidewall and a wristpin bore with a first opening and a second opening formed in the sidewall. The outer part includes a second ring belt region for supporting oil control rings. The crown part is joined to an upper end of the sidewall with one or more welding seams. The outer part is joined to a lower end of the sidewall with a welding seam.

Abstract: Provided herein are exemplary systems and methods for an intelligent secure networked system configured by at least one processor to execute instructions stored in memory, the system including a data retention system and an emotional analytics system, the emotional analytics system performing asynchronous processing to determine if interactions with a user's computing device are such that the user is responding from an emotional state of mind or a meditated state of mind.

Abstract: An alignment device comprises a coil configured to generate an induced voltage from a magnetic field, or an electrode configured to generate an induced voltage from an electric field. The alignment device further comprises a comparator configured to compare the induced voltage to a threshold voltage and activate an indicator based on the comparison.

Abstract: In one aspect, a PCB is provided. The PCB includes at least one insulating layer, a blind slot, and at least one via. The at least on insulating layer includes a first surface and a second surface opposite the first surface. The blind slot is plated and formed in the at least one insulating layer, where the blind slot partially extends from the first surface to the second surface, and where the blind slot includes a conductive plating bonded along a major surface of the blind slot. The at least one via is electrically conductive and filled, where the at least one via is coupled with and extends between the conductive plating of the blind slot and the second surface of the at least one insulating layer.

Abstract: A streaming one time Pad cipher using rotating ports for data encryption uses a One Time Pad (OTP) to establish multiple secure point-to-point connections. This can be used to implement a streaming OTP point-to-point firewall, virtual private network or other communications facility for communicating secure information across one or more insecure networks.

Abstract: A solid-state circuit breaker (SSCB) with self-diagnostic, self-maintenance, and self-protection capabilities includes: a power semiconductor device; an air gap disconnect unit connected in series with the power semiconductor device; a sense and drive circuit that switches the power semiconductor device OFF upon detecting a short circuit or overload of unacceptably long duration; and a microcontroller unit (MCU) that triggers the air gap disconnect unit to form an air gap and galvanically isolate an attached load, after the sense and drive circuit switches the power semiconductor device OFF. The MCU is further configured to monitor the operability of the air gap disconnect unit, the power semiconductor device, and other critical components of the SSCB and, when applicable, take corrective actions to prevent the SSCB and the connected load from being damaged or destroyed and/or to protect persons and the environment from being exposed to hazardous electrical conditions.

Abstract: A radial engine-generator includes an electric power generator and a radial engine. The radial engine-generator can be a mobile and portable unit, and is employable as a primary or back-up source of electric power at data centers, manufacturing facilities, electric vehicle charging stations, medical facilities, telecommunications, and residential neighborhoods, among many other applications. The electric power generator and radial engine are coupled together. The radial engine includes, among other components, multiple cylinders, multiple cylinder heads, and multiple overhead camshaft assemblies. The overhead camshaft assemblies are located at the cylinder heads and each include one or more camshafts. The camshaft(s) receive rotational drive input from a crankshaft of the radial engine. In certain implementations, camshaft carrier assemblies can be provided to support components of the overhead camshaft assemblies.

Abstract: A solid oxide fuel cell (SOFC) system included high thermal conductivity materials such as copper 10 increase thermal energy transfer by thermal conduction. The copper is protected from oxidation by nickel electroplating and protected from thermal damage by providing Hastelloy liners inside combustion chambers. Monel elements are used in the incoming air conduits to prevent cathode poisoning.

Abstract: One or more external connectors of a conformal wearable battery (CWB) may be controlled to reduce a voltage potential supplied to the connectors when exposed to a conductive liquid. The connectors may be uniform serial bus (USB) connectors or other connectors. One or more unused terminals of the one or more connectors may be pulled to a voltage potential and then monitored for a change in voltage. When the change in voltage satisfies a voltage threshold, the voltage potential supplied to the one or more connectors may be reduced and/or interrupted. The change in voltage may be evaluated against the voltage threshold alone or may be evaluated against the voltage threshold and a time threshold relating to a time after the voltage satisfied the voltage threshold. The voltage of the monitored terminal may be evaluated against one or more voltage thresholds and/or one or more time thresholds. Based on the voltage threshold having been met, the voltage supplied to the connector may be reduced or stopped.

Abstract: In an opposed-piston engine, a piston has a top land. The piston top land has a non-cylindrical shape which affords more clearance with a piston bore to thrust and anti-thrust sides than to front-facing and rear facing sides.

Abstract: Layout to reduce current crowding at endpoints. At least one example is a semiconductor device comprising: an emitter region defining an inner boundary in the shape of an obround with parallel sides, and the obround having hemispherical ends each having a radius; a base region having a first end, a second end opposite the first end, and base length, the base region disposed within the obround with the base length parallel to and centered between the parallel sides, the first end spaced apart from the first hemispherical end by a first gap greater than the radius, and the second end spaced apart from the second hemispherical ends by a second gap greater than the radius.

Abstract: A transmit resonator is provided. The transmit resonator comprises: two inductors; a switching network electrically connected to the inductors; a plurality of capacitive electrodes electrically connected to the switching network; a detector communicatively connected to the capacitive electrodes; and a controller communicatively connected to the switching network and the detector. The detector is configured to detect impedance. The controller is configured to control the switching network to control which electrodes are connected to the inductors based on the detected impedance. The inductors and electrodes are configured to resonate to generate an electric field.

Abstract: The present application teaches, among other innovations, power semiconductor devices in which breakdown initiation regions, on BOTH sides of a die, are located inside the emitter/collector regions, but laterally spaced away from insulated trenches which surround the emitter/collector regions. Preferably this is part of a symmetrically-bidirectional power device of the “B-TRAN” type. In one advantageous group of embodiments (but not all), the breakdown initiation regions are defined by dopant introduction through the bottom of trench portions which lie within the emitter/collector region. In one group of embodiments (but not all), these can advantageously be separated trench portions which are not continuous with the trench(es) surrounding the emitter/collector region(s).

Abstract: A solar system comprises at least one solar panel with a plurality of solar cells. The solar panels include first and second split-circuits to extract electrical energy from the solar panel. The first split-circuit includes solar panel wires that electrically connect, in series, the solar cells of the first split-circuit to extract electrical energy from the solar panel. Similarly, the second split-circuit includes solar panel wires that electrically connect, in series, the solar cells of the second split-circuit to extract electrical energy from the solar panel. The first and second split-circuits are configured to generate a voltage not to exceed a voltage specification, such as a voltage specification of 35 volts.

Abstract: A system is for a machine having an alternating current (AC) power source with a first side and a second side, one or more windings, an AC polarity detector, a Hall effect device, two or more pairs of power switches, and a motor controller. The motor controller determines which of the power switches to open or close to obtain a direction of current flow through the one or more windings based on signals from the AC polarity detector and the Hall effect device.

Abstract: An atmospheric water generator (AWG) may be used to extract water from ambient air. A compact screw compressor of the A WG may be used to compress refrigerant, a condenser of the A WG may be used to condense refrigerant, an expansion device, and an evaporator of the AWG may be used to transfer heat from ambient air to refrigerant, causing moisture in the air to condense. The condensed moisture may be collected in a water collection unit.

Abstract: A distributed information between plasma based power generating devices which provide at least one of electrical and thermal power and a portal for transmission of information and methods of operating such a network is disclosed. The network may include a plurality of power systems that are organized and controlled to form a communication network.

Abstract: Responding to grid events is provided. The system determines, based on an event, to modify an electrical load of a site. The system selects a parameter for the site to adjust to modify the electrical load. The system identifies a script constructed from previously processed interactions between a human-machine interface of the building management system to adjust the parameter for the site. The system establishes a communication session with a remote access agent executed by a computing device of the site to invoke the building management system of the site. The system generates a sequence of commands defined by the script to adjust the one or more parameters for the site. The system transmits the sequence of commands to cause the remote access agent to execute the sequence of commands on the human-machine interface of the building management system to modify the electrical load of the site.

Abstract: A system can detect an event at a first grid connected to a second grid via a meter monitored by a utility provider that distributes electricity via the second grid. A controller of a first grid can receive data including amounts of electricity consumption monitored by a corresponding plurality of sub-meters on the first grid and state information for energy storage systems on the first grid. The system can determine, responsive to the event, to modify a set point for one of the energy storage systems based on the state information and the amounts of electricity consumption monitored by the sub-meters on the first grid. The data processing system can provide, based on the determination, one or more commands to the controller to modify the set point for at least one of the plurality of energy storage systems on the first grid.

Abstract: A system for wireless power reception, preferably including one or more: antennas, dynamic impedance matches, RF-DC converters, DC impedance converters, and/or DC power outputs. A method for wireless power reception, preferably including: receiving power wirelessly at an antenna, dynamically adjusting an input impedance of a dynamic impedance match coupled to the antenna, and/or delivering the power to a load.