Abstract: Disclosed are a method and system for determining the installation position of a thyristor controlled phase shifter, a medium and a computing device. The installation position of a thyristor controlled phase shifter can be determined according to the variation of the voltage stability index of a power system before and after the thyristor controlled phase shifter is installed, thus providing technical support for the selection of the installation position of the thyristor controlled phase shifter in a power grid.

Abstract: A device for loop closing and breaking of a power distribution grid based on decoupled voltage regulation is provided. The device comprises a voltage-regulation phase shifter, a control system, a voltage acquisition device and a loop closing switch. The voltage acquisition device acquires voltage signals on two sides of the loop closing switch performing a loop closing or breaking operation and transmits the voltage signals to the control system. The control system calculates a compensating voltage amplitude and phase-angle according to the voltage signals, and sends an instruction to the voltage-regulation phase shifter according to the compensating voltage amplitude and phase-angle. The voltage-regulation phase shifter outputs the compensating voltage amplitude and phase-angle according to the instruction from the control system, to compensate for a voltage difference between the two sides of the loop closing switch.

Abstract: In some embodiments, apparatuses and methods are provided herein useful to detecting inbound and outbound traffic. In some embodiments, there is provided a system for detecting inbound and outbound traffic at a facility including a video camera and a control circuit configured to detect a human and estimate a location of the human; determine whether the detected human is inbound or outbound the facility based on a relative movement of the detected human within a first region, a second region, and a third region; and transmit data based on the determination.

Abstract: Systems and methods for predicting differentiating features from tabular data for two different populations. In some aspects, the systems and methods provide for receiving first data entries and second data entries and generating a first graph based on a data entry from the first data entries and a second graph based on a data entry from the second data entries. A first node in the first graph is determined to correspond to a second node in the second graph. A first set of graph embeddings is generated based on the first graph. A second set of graph embeddings is generated based on the second graph. Using a machine learning model, the first set of graph embeddings and the second set of graph embeddings are processed to identify at least one feature indicative of a difference between the first data entries and the second data entries.

Abstract: Systems and methods for adjusting data processing components. In some aspects, the systems and methods include training a first machine learning model using a similarity graph generated based on training entries to predict whether a target system related to a node in the similarity graph will be non-operational within a future period of time, processing using the trained first machine learning model an updated similarity graph generated based on training and inference entries to predict for each node for the inference entries whether a target system related to the node will be non-operational within the future period of time, processing using a second machine learning model predictions and associated inference entries to predict that a target system related to a node for an entry will be non-operational within the future period of time, and adjusting data processing components related to the target system.

Abstract: Systems and methods for predicting change points in tabular data. In some aspects, the systems and methods provide for generating time-stamped graphs based on data entries and corresponding time stamps. Each graph of the time-stamped graphs corresponds to a data entry and is representative of one or more events associated with a time stamp corresponding to the data entry. The graph is independent of any events before or after the time stamp. For each graph of the time-stamped graphs, a set of graph embeddings is generated based on the graph and processed using a machine learning model to predict an occurrence of a change point in the data entries.

Abstract: In some aspects, a computing system may create different node embeddings (e.g., different instances of the same graph) and aggregate the node embeddings to form “multipurpose” node embeddings. As an example, the different node embeddings may include node embeddings generated using unsupervised machine learning and node embeddings generated using supervised machine learning. In this way, for example, a variety of machine learning models may use the aggregated node embeddings without the need for each machine learning model to generate separate node embeddings each time a machine learning task is performed. A machine learning model may use all or a portion of the features in the aggregated node embeddings as appropriate for the task the model is performing.

Abstract: In some embodiments, apparatuses and methods are provided herein useful to providing customized in-store navigation. In some embodiments, there is provided a system for providing customized in-store navigation including shelving units; shelf electronic shelf labels; product electronic shelf labels; a navigation services control circuit configured to transmit location information associated with the product ESLs at a retail store to an in-store navigation interface operable on a portable electronic device when the portable electronic device is inside the retail store; and the in-store navigation interface configured to: identify a target retail product; receive location information; determine a location of the target retail product; and display directions to the location of the target retail product on a display device.

Abstract: In some embodiments, apparatuses and methods are provided herein useful to detecting inbound and outbound traffic. In some embodiments, there is provided a system for detecting inbound and outbound traffic at a facility including a video camera and a control circuit configured to detect a human and estimate a location of the human; determine whether the detected human is inbound or outbound the facility based on a relative movement of the detected human within a first region, a second region, and a third region; and transmit data based on the determination.

Abstract: Most automatic cuff blood pressure (BP) measurement devices are based on oscillometry. These devices estimate BP from the envelopes of the cuff pressure oscillations using fixed ratios. The values of the fixed ratios represent population averages, so the devices may be accurate only in subjects with normal BP levels. A patient-specific oscillometric BP measurement method was developed. The idea was to represent the cuff pressure oscillation envelopes with a physiologic model and then estimate the patient-specific parameters of the model, which includes BP levels, by optimally fitting it to the envelopes.

Abstract: In some embodiments, apparatuses and methods are provided herein useful to detecting egress. In some embodiments, there is provided a system for detecting egress at an entrance including a video camera; a computer; a network; and a control circuit configured to receive live video footage; detect a human and estimate a location of the human; track a location and movement of a detected human; determine that the detected human has moved from a first region to a second region and to a third region; and transmit an alert message that indicates that the human has exited the retail facility through the entrance area. In some embodiments, the systems and methods may be configured to comply with privacy requirements which may vary between jurisdictions. For example, before any recording, collection, capturing or processing of user images (e.g., video image, video footage, etc.), a “consent to capture” process may be implemented.

Abstract: A method of selective extracting exchangeable strontium and barium from sediments, comprising, collecting a predetermined quantity of a sedimentary sample, removing biogenic clasts from the predetermined quantity of the sedimentary sample to provide a coarse filtered sedimentary sample, baking the coarse filtered sedimentary sample at a temperature less than 105° C., crushing the coarse filtered sedimentary sample to yield a fine filtered sedimentary sample having a sample grain size of less than 100 mesh, reacting a portion of the fine filtered sedimentary sample in a solution containing at least one of an ammonium acetate reactant and a sodium acetate reactant, measuring a strontium level within a liquid product of the solution, measuring a barium level within the liquid product of the solution and determining a ratio of the strontium level and the barium level of the liquid product.

Abstract: In some embodiments, apparatuses and methods are provided herein useful to providing customized in-store navigation. In some embodiments, there is provided a system for providing customized in-store navigation including shelving units; shelf electronic shelf labels; product electronic shelf labels; wireless access points (WAPs); one or more databases; a navigation services control circuit configured to transmit location information associated with the product ESLs at a retail store to an in-store navigation interface operable on a portable electronic device when the portable electronic device is inside the retail store; wireless beacons; and the in-store navigation interface configured to: receive an input; identify a target retail product; receive the location information; receive beacon; determine a location of the portable electronic device; determine a location of the target retail product; and display directions to the location of the target retail product on a display device.

Abstract: A method is provided for determining blood pressure for a subject using a sphygmomanometer. The method includes: measuring an oscillometric cuff pressure waveform of the subject using the sphygmomanometer; representing the measured waveform with a physical model accounting for mechanics of the cuff, an artery and coupling between the cuff and the artery; determining the model unknowns from the measured waveform; and determining blood pressure for the subject using the determined model.

Abstract: The present invention discloses a novel Unified Power Flow Controller UPFC and its control method. Supposing that one end of DC converter is connected to the DC transmission line of HVDC converter station or substation and the other end is connected to the DC side of a series converter, the AC output voltage of the series converter can be controlled to regulate the line power of the UPFC for operation in UPFC and SSSC mode. In addition, when the number of transformers and shunt converters is decreased at the shunt side of the UPFC, the HVDC Converter Station can be used to provide active power for the series converter of UPFC, which can effectively reduce operation costs and ensure stable operation of power grid. Therefore, there is a bright application prospect for the invention.

Abstract: A method for selectively extracting sedimentogenic strontium and barium from terrigenous elastic sediments to reflect the difference between marine and continental sedimentary environments is disclosed. The method comprises collecting loose sediment, removing visible biogenic clasts, baking the sample and crushing the sample to a grain size no larger than 100-mesh. The method further comprises weighing the sample, reacting the sample in acetic acid or acetic acid-acetate solution, stirring or oscillating the sample at room temperature and normal pressure, separating the solid and liquid after reaction and analyzing strontium and barium in the supernatant. The gained Sr/Ba ratio of the supernatant reflects whether the sediments were deposited in a marine or a continental sedimentary environment.

Abstract: A method is provided for determining blood pressure for a subject using a sphygmomanometer. The method includes: measuring an oscillometric cuff pressure waveform of the subject using the sphygmomanometer; representing the measured waveform with a physical model accounting for mechanics of the cuff, an artery and coupling between the cuff and the artery; determining the model unknowns from the measured waveform; and determining blood pressure for the subject using the determined model.

Abstract: The present invention discloses a novel Unified Power Flow Controller UPFC and its control method. Supposing that one end of DC converter is connected to the DC transmission line of HVDC converter station or substation and the other end is connected to the DC side of a series converter, the AC output voltage of the series converter can be controlled to regulate the line power of the UPFC for operation in UPFC and SSSC mode. In addition, when the number of transformers and shunt converters is decreased at the shunt side of the UPFC, the HVDC Converter Station can be used to provide active power for the series converter of UPFC, which can effectively reduce operation costs and ensure stable operation of power grid. Therefore, there is a bright application prospect for the invention.

Abstract: Most automatic cuff blood pressure (BP) measurement devices are based on oscillometry. These devices estimate BP from the envelopes of the cuff pressure oscillations using fixed ratios. The values of the fixed ratios represent population averages, so the devices may be accurate only in subjects with normal BP levels. A patient-specific oscillometric BP measurement method was developed. The idea was to represent the cuff pressure oscillation envelopes with a physiologic model and then estimate the patient-specific parameters of the model, which includes BP levels, by optimally fitting it to the envelopes.

Abstract: A method for selectively extracting sedimentogenic strontium and barium from terrigenous elastic sediments to reflect the difference between marine and continental sedimentary environments is disclosed. The method comprises collecting loose sediment, removing visible biogenic clasts, baking the sample and crushing the sample to a grain size no larger than 100-mesh. The method further comprises weighing the sample, reacting the sample in acetic acid or acetic acid-acetate solution, stirring or oscillating the sample at room temperature and normal pressure, separating the solid and liquid after reaction and analyzing strontium and barium in the supernatant. The gained Sr/Ba ratio of the supernatant reflects whether the sediments were deposited in a marine or a continental sedimentary environment.