Abstract: A method of detecting abnormal heartbeats includes providing a library of abnormal beat synthesis (ABS) filters, wherein each ABS filter corresponds to a specific cause of a cardiac problem. The method further includes obtaining an ECG of a normal heartbeat of a person and applying an ABS filter from the library of ABS filters to the ECG of the normal heartbeat of the person to generate a potential abnormal ECG. The method further includes monitoring a heartbeat of the person and classifying each heartbeat as either normal or abnormal.

Abstract: A microwave assisted method for synthesizing a diarziridine in the absence of aminating agents, by reacting a sulphonylhydrazine and an aldehyde to form a mixture and exposing the mixture to microwave radiation for a duration of time sufficient to produce a diarziridine.

Abstract: A method may include measuring, photoplethysmography (PPG) data and capacitance data of an object. The method may also include, with the PPG data and the capacitance data, detecting, by a microprocessor, positive peaks of the data by comparing successive measurements. The method may further include finding, by the microprocessor, a maximum peak value of the detected positive peaks, and generating, by the microprocessor, a threshold value based on detected positive peaks. If the maximum peak value is greater than the threshold value, analyze, by the microprocessor, a fingerprint of the object. The method may also include determining, by the microprocessor, based on the PPG data, the capacitance data and the fingerprint of the object, at least one of if the object is authorized or unauthorized, and if the object is a human being or not a human being.

Abstract: Certain embodiments may generally relate to smart robotic therapeutic devices. A modular toy may include a multiple detachable carriages. The modular toy may also include a liquid crystal display (LCD) screen mounted on a first carriage of the plurality of carriages. The modular toy may further include a bubble-generation mechanism installed on the first carriage, a container disposed on a second carriage of the plurality of carriages that is attached to the first carriage, and a robotic arm mounted on a third carriage of the plurality of carriages that is attached to the second carriage.

Abstract: Certain embodiments may generally relate to a smart fault detection device for power grids, and a method of fault detection for power grids. A method may include receiving raw data samples of currents in grounding conductors and line conductors. The method may also include processing the raw data samples under at least one of a plurality of system operating modes. The method may also include monitoring normal operation and anticipating an impending fault while operating under at least one of the system operating modes. The method may further include extracting fault information based on the monitoring. The method may also include reporting the fault information to a supervisory control and data acquisition system human-machine interface. The method may further include anticipating faults based on an analysis of the raw data samples.

Abstract: Certain embodiments may generally relate to systems and methods for developing and improving compact electrocoalescers for in-line dehydration of water-in-oil dispersions. A compact electrocoalescer may include a casing, and a plurality of bare or insulated conical-shaped electrodes housed in the casing. The electrodes may include a metal mesh structure. The electrodes may also be truncated at the apex, and alternatively connected to a power supply and ground. The electrodes may further be stacked in a manner such that at least one electrode is at least partially nested within at least another electrode.

Abstract: Certain embodiments may generally relate to controlling access to data held in the cloud. A method for controlling access to data held in the cloud may include determining, at a cloud server, the validity of user credentials received from a user device. The method may also include receiving context data related to the user device based on the validity of the user credentials. The method may further include synchronizing the context data with the cloud server. In addition, the method may include enforcing context-sensitive security checks on requests made by the user for resources based on the sensor data collected by the user device.

Abstract: Provided herein are a method of making a nanoporous cerium oxide material which can be used for heterogeneous catalysis. The method may include mixing a cerium nitrate solution and an amine solution to form a mixture and stirring the mixture thus forming a nanoporous cerium oxide precipitate. Further, the molar ratio of cerium nitrate and the amine ranges from 2:1 to 5:1.

Abstract: Certain embodiments may generally relate to power supplies, and more specifically to a linear regulated dimmable light-emitting diode (LED) driver for a direct current (DC) grid connected LED string. A power circuit may include a plurality of pass devices, and a plurality of biasing pass devices electrically connected to the plurality of pass devices. The power circuit may also include a compensator electrically connected to the plurality of biasing pass devices, and a sense resistor electrically connected to the plurality of pass devices, the plurality of biasing pass devices, and the compensator.

Abstract: An electrical converter is provided, comprising a first half-bridge sub-module, a switch, and a first capacitor. The half-bridge sub-module is connected to the first capacitor, and the switch is connected to a terminal of the first half-bridge sub-module. The switch includes a plurality of insulated-gate bipolar transistors. The insulated-gate bipolar transistors are serially connected with each other.

Abstract: Certain embodiments may generally relate to a smart fault detection device for power grids, and a method of fault detection for power grids. A method may include receiving raw data samples of currents in grounding conductors and line conductors. The method may also include processing the raw data samples under at least one of a plurality of system operating modes. The method may also include monitoring normal operation and anticipating an impending fault while operating under at least one of the system operating modes. The method may further include extracting fault information based on the monitoring. The method may also include reporting the fault information to a supervisory control and data acquisition system human-machine interface. The method may further include anticipating faults based on an analysis of the raw data samples.

Abstract: A method and apparatus may include receiving a signal from a motor. The signal is received while the motor is operating. The method also includes performing a pre-processing of the signal. The method also includes inputting the signal to a 1D convolutional neural network. The method also includes detecting a fault of the motor based on the output of the neural network.

Abstract: An electrical converter, comprising a plurality of first modules and a plurality of second modules. At least one of the plurality of first modules includes a half-bridge module coupled with a direct current (DC)-link capacitor. A diode connected across the DC-link capacitor and a thyristor. At least one of the plurality of second modules is connected to at least one of the plurality of first modules.

Abstract: A method and apparatus may include receiving a transmission. The method can also include determining a sparsifying dictionary that sparsely approximates a data vector of the transmission. The determining the sparsifying dictionary includes performing a fast Fourier transform and/or an inverse fast Fourier transform. The method also includes configuring a filter based on the determined sparsifying dictionary.

Abstract: Certain embodiments may generally relate to a smart fault detection device for power grids, and a method of fault detection for power grids. A method may include receiving raw data samples of currents in grounding conductors and line conductors. The method may also include processing the raw data samples under at least one of a plurality of system operating modes. The method may also include monitoring normal operation and anticipating an impending fault while operating under at least one of the system operating modes. The method may further include extracting fault information based on the monitoring. The method may also include reporting the fault information to a supervisory control and data acquisition system human-machine interface. The method may further include anticipating faults based on an analysis of the raw data samples.

Abstract: Embodiments of the present invention encompass methods of forming graphene from graphene oxide and/or graphite oxide using tomato juice.

Abstract: A method of making a copper oxide-titanium dioxide nanocatalyst for performing the catalytic oxidation of carbon monoxide is provided. The copper oxide-titanium dioxide nanocatalyst is in the form of copper oxide (CuO) nanoparticles supported on mesoporous titanium dioxide (TiO2) nanotubes. The copper oxide-titanium dioxide nanocatalyst is prepared by adding an aqueous solution of Cu(NO3)23H2O to an aqueous suspension of titanium dioxide nanotubes. Deposition precipitation at constant alkaline pH is used to form the copper oxide nanoparticles supported on mesoporous titanium dioxide nanotubes. Aqueous sodium carbonate is used to adjust the pH. The solid matter (copper oxide deposited on titanium dioxide nanotubes) is separated from the suspension, washed, dried and calcined, yielding the copper oxide-titanium dioxide nanocatalyst. Carbon monoxide may then flow over a fixed-bed reactor loaded with the copper oxide-titanium dioxide nanocatalyst at a temperature between 80° C. and 200° C.

Abstract: Systems and methods are provided for intrusion detection, specifically, identifying masquerade attacks in large scale, multiuser systems, which improves the scoring systems over conventional masquerade detection systems by adopting distinct alignment parameters for each user. For example, the use of DDSGA may result in a masquerade intrusion detection hit ratio of approximately 88.4% with a small false positive rate of approximately 1.7%. DDSGA may also improve the masquerade intrusion detection hit ratio by about 21.9% over convention masquerade detection techniques and lower the Maxion-Townsend cost by approximately 22.5%. It will also improve the computational overhead.

Abstract: An apparatus and method for determining an angle ? an estimate of a true angle ? from a resolver excitation signal Vex(t)=A sin(?t) and modulated resolver output signals Vs(t,?)=A×sin(?)×sin(?t) and VC(t,?)=A×cos(?)×sin(?t), where ? is an angular frequency and t is time, is provided. The apparatus may include a converter comprising a closed loop phase-locked loop (PLL) system configured to produce an angle ? and two digital signals BitØ(?) and Bit1(?) for estimating the true angle ? using Vex(t), Vs(t,?) and VC(t,?) signals.

Abstract: Air drained from a patient's body can be measured after a surgical operation or trauma. The volume of air drained from the body can be determined from the weight of a vessel that has receive effluent drained the body and the volume of air that has escaped from the vessel. The effluent can include any one or a combination of air and liquid.