Abstract: The subject method for delivering power to a moving target wirelessly via electromagnetic time reversal can find applications in wireless electrical transmission to portable devices, wireless heating of portable devices, novel wirelessly powered accelerometers, hyperthermic treatment of cancers, and many other applications. The subject non-linear time reversed electromagnetic waves based wireless power transmission (WPT) system targets either a single linear or non-linear object where a selective targeting between two diodes has been demonstrated simultaneously with different degrees of non-linearity in a three-dimensional ray-chaotic billiard model. A dual-purpose rectenna with harmonic generation for wireless power transfer by non-linear time-reversal has been designed for the subject system using the Schottky diode.

Abstract: A power supply box includes: a first terminal that is configured to be connected to a first power storage device that supplies power to a first load; a second terminal that is configured to be connected to an alternator and a second load; a normally-off switch that is configured to be connected between the first terminal and the second terminal; and a bypass that is configured to be connected in parallel with the switch between the first and second terminals. The bypass includes a diode that has a forward direction that is from the first terminal toward the second terminal, and a resistor that is connected in series with the diode between the first and second terminals.

Abstract: An electrical supply system for an aircraft includes a generator having a neutral point, an AC network, a bipolar DC network, and a neutral point clamped converter. The neutral point is connected to ground, in at least one operating mode. The converter has an AC side with AC connectors couplable with at least one phase of the generator. The converter also has a DC side with a first DC connector, a second DC connector and a neutral DC connector. The AC side of the converter is coupled with the generator, the DC side is coupled with the bipolar DC network, and the neutral DC connector is connected to ground. The convertor provides a DC voltage on the DC side upon receiving an AC voltage on the AC side, and provides an AC voltage on the AC side upon receiving a DC voltage on the DC side.

Abstract: A power switch comprises a SPDT switch having a common side and a switch side; a first isolation switch electrically connected at the common side of the SPDT switch and a second isolation switch electrically connected at the switch side of the SPDT switch; a microprocessor for detecting a current direction and controlling the conduction state of one of the first isolation switch and the second isolation switch in response to the detected current direction; and a power converter converting AC power to DC power for powering the first isolation switch, the second isolation switch and the microprocessor.

Abstract: Systems and methods are described for managing DNS records. An intermediary device, such as a web portal or API, may be configured to communicate with a variety of domain name servers. The intermediary device may store authorization rules to verify commands from users to update records of the domain name servers. The authorization rules allow for users to have limited access to domain zones, domain records, domain servers, types of records, records associated with metadata, and other data. The domain name servers may store domain name records in a common data store allowing for extended searching and metadata tagging of data.

Abstract: An electrical power system includes a photovoltaic panel, configured to generate electrical power from a solar source. An output source is electrically coupled to the photovoltaic panel with a first maximum power point tracking charge controller. An inverter is electrically coupled to the photovoltaic panel with a second maximum power point tracking charge controller. A bi-directional buck/boost converter is electrically coupled to the first maximum power point charge controller and the second maximum power point charge controller and programmed with instructions to determine a photovoltaic panel current coming in from the photovoltaic panel. Then, direct an output source current to the output source. After that, direct a inverter current to the inverter.

Abstract: A power generation system includes a plurality of photovoltaic cell panels for outputting DC power, a plurality of inverters for converting DC power into AC power, and a high-order device for communicating with the plurality of inverters. The high-order device is configured to acquire a predetermined power factor, and transmit a command value to each of the plurality of inverters so that the power factor corresponding to the predetermined power factor is achieved by a total output of the plurality of inverters. The high-order device is configured so as to determine a specific inverter that has room to increase the amount of reactive power output from among the plurality of inverters, to transmit a reactive power increasing command value for increasing reactive power to the specific inverter.

Abstract: A plurality of DC/DC converters is provided for each group of solar panels and is configured to convert an output power of the solar panels. A charger includes an input to which outputs of the plurality of DC/DC converters are connected and is configured to convert an input voltage with maintaining the input voltage to a lower limit voltage during charging. The control device controls each of the plurality of DC/DC converters independently. Each of the plurality of control devices is configured to control so as to gradually increase the output voltage of the DC/DC converter from the lower limit voltage, measure the output power of the solar panel each time the output voltage is increased, and search for the output voltage where the measured output power is maximum and maintain that output voltage.

Abstract: A method for multi-objective optimization, preferably including: evaluating objective functions at a point, determining a plurality of initial points, and/or determining a final point. A method for wireless power delivery, preferably including performing the method for multi-objective optimization to optimize wireless power delivery. A system for multi-objective optimization, preferably including one or more computation modules and one or more objective function evaluation modules, such as one or more wireless power transmitters and/or receivers.

Abstract: In a power transmission unit, a first coil pattern group and a second coil pattern group are connected with each other with an upper layer outer pattern, located outside in an axial line direction and outside in the intersecting direction, connected with a lower layer inner pattern, located outside in the axial line direction and inside in the intersecting direction. Furthermore, the first coil pattern group and a second coil pattern group are connected with each other with a lower layer outer pattern, located inside in the axial line direction and outside in the intersecting direction, connected with an upper layer inner pattern, located inside in the axial line direction and inside in the intersecting direction.

Abstract: Systems for providing power are provided including an uninterruptible power supply (UPS) coupled to a first power source, the UPS including at least one battery therein; and at least one external battery module (EBM) coupled to the UPS and a second power source, the second power source being different and separate from the first power source. Each of the at least one EBMs include a communication circuit configured to communicate with the UPS and/or other EBMs; at least one battery string; and a battery charger coupled to the at least one battery string and the at least one battery in the UPS, the battery charger being configured to charge the at least one battery string and the at least one battery in the UPS responsive to a communication from the EBM through the smart card when power from the second power source is removed. Related EBMs and UPSs are also provided.

Abstract: A surge protection device with stack spark gaps, whereby a stack spark gap is formed from multiple electrodes and insulating elements that are arranged between the electrodes, with an ignition switch for influencing the ignition behavior of the stack spark gaps, with a first electrically conductive clamping element and with a second electrically conductive clamping element, whereby the clamping elements are arranged on opposite sides of the stack spark gaps, with at least one connecting element by which the clamping elements are connected to one another, and with connection elements for electrical connection of the stack spark gaps.

Abstract: Disclosed is an improved method, system, and computer program product for learning representations or embeddings of network flow traffic. The disclosed invention operates on network flow data which are then used as inputs to a deep-learning architecture that learns to embed the data into a vector space.

Abstract: Methods and systems for using a challenge-response problem to deter malicious clients are described. A login attempt from a computing device with an associated identity profile is detected. A reputation score is determined based on the identity profile, and a strength of a challenge-response problem for use with the login attempt is set based on the determined reputation score. The challenge-response problem with the set strength is then sent to the computing device. The login attempt is permitted to proceed when a solution to the challenge-response problem received from the computing device is verified.

Abstract: A battery system for a vehicle is provided. The battery system includes a supercapacitor device that is configured to supply power to one or more components of the vehicle in response to various conditions.

Abstract: Technologies for USB device policy enforcement include a computing device having a USB controller and secure enclave support. On boot, a firmware enclave randomly generates a binding identity and then securely provisions the binding identity to the USB controller. The firmware enclave also seals the binding identity to a policy enforcement enclave. At runtime, the policy enforcement enclave unseals the binding identity and includes the binding identity in a policy enforcement command sent to the USB controller. The USB controller verifies that the binding identity included in the command matches the binding identity that was previously provisioned. If the binding identities are successfully verified, the USB controller enforces the command. The USB controller may block data transfers or device configuration changes for one or more specified devices. Each of the firmware enclave and the policy enforcement enclave are trusted execution environments. Other embodiments are described and claimed.

Abstract: Examples described herein relate to systems, apparatuses, methods, and non-transitory computer-readable medium for recovering a session object associated with a secure session established by a security protocol server, including receiving, by a recovery server, an encrypted session object from the security protocol server, wherein the encrypted session object is unique to the secure session, generating, by the recovery server, a recovery key based on a first initial key and a recovery key sequence number, wherein the recovery key sequence number corresponds to a number of times that secure sessions have been established since the first initial key is received by the security protocol server, and decrypting, by the recovery server, the encrypted session object using the recovery key to generate the session object associated with the secure session.

Abstract: Methods and apparatuses are provided for controlling power transmission in a power transmitter. Voltage information including a minimum voltage, a maximum voltage, and a first voltage, is received from each of a plurality of power receivers. Power is transmitted to the plurality of power receivers based on the voltage information. A respective report about a power reception condition is received from each of the plurality of power receivers while transmitting the power. Each respective report includes a measured voltage at a corresponding power receiver of the plurality of power receivers. A power receiver is selected from among the plurality of power receivers based on the received reports. An amount of the power is adjusted by reducing a difference between a first voltage of the selected power receiver and a measured voltage of the selected power receiver.

Abstract: In a conventional power supply system, it was difficult to quickly activate a motor load or the like after performing switching to an isolated operation.

Abstract: Embodiments protect against security vulnerabilities arising from 3rd party JavaScript code. A browser receives from a server, a document including a first JavaScript. The browser in turn references a list stored in a database to recognize the first JavaScript as originating from other than the server. This recognition process may involve obtaining a stacktrace. The browser then references a second JavaScript in order to instrument a document object model (DOM) feature (e.g., global API, DOM element-attached API, DOM node property) to sanitize the first JavaScript. For instrumenting a global API, this may comprise overwriting a global reference in the first JavaScript with a replacement reference to a sanitization function. For instrumenting the DOM element-attached API or the DOM node property, the instrumenting may comprise altering a prototype of the DOM node element. The browser causes the DOM feature to sanitize the first JavaScript, and passes a sanitized JavaScript for execution.