Abstract: A method comprises acquiring anomaly data including a plurality of anomalies detected from streaming data, wherein each of the anomalies relates to an entity on or associated with a computer network. The method determines a risk score of each of the anomalies, and adjusts the risk score of an anomaly according to a set of factors. The method further determines, for each of a plurality of sliding time windows of different lengths, an entity score of the entity in relation to the sliding time window, based on an aggregation of risk scores of all anomalies related to the entity that were detected within the sliding time window, where the entity score corresponds to a risk level associated with the entity. An action to prevent the entity from performing an operation can be determined and caused to occur based on the entity score.

Abstract: Tracer eluting proppants, such as proppants that have polymeric coatings on them that include tracers, such as a fluorescent dye. The tracer eluting proppants can comprise proppant particles coated with a polymeric coating that can elute tracer under some, but not all conditions. For example, the tracer can be eluted at elevated temperature, pH, and/or salinity conditions, but not elute at lower temperature, pH, and/or salinity conditions. Methods of making and using tracer eluting proppants are also disclosed, including methods for characterizing subterranean reservoirs.

Abstract: As described herein, a system, method, and computer program are provided for normalizing a JSON structure. In use, input defining at least one entity type of a target data structure is received. A source JSON structure is identified. The source JSON structure is traversed for a particular JSON data type to map values in the source JSON structure to corresponding entities of the target data structure based on the at least one entity type defined for the target data structure, where each entity of the target data structure is defined using a relative path between nodes of the source JSON structure.

Abstract: A photonic aerosol particle sensor includes a microfluidic sensor chamber in which is disposed a plurality of photonic waveguide resonators each having a photonic waveguide on an underlying substrate, along a separate waveguide resonator path with a lateral width different than that of other photonic waveguide resonators. All waveguides in the plurality have a common vertical thickness of a common waveguide material having a refractive index that is larger than that of the underlying substrate material. An optical input connection couples light into the waveguide resonators. An aerosol particle input fluidically connected to the microfluidic chamber fluidically conveys aerosol particles to the chamber, and an aerosol particle output fluidically connected to the microfluidic chamber fluidically conveys aerosol particles out of the chamber.

Abstract: A computer system generates a three-dimensional (3D) visualization of a building structure that is undergoing construction. The system can determine a location of an object in the building structure and map the object to an expected object in a 3D model of the building structure. The system can detect a discrepancy between the object of the building structure and the expected object in the 3D model, and determine that the discrepancy exceeds a threshold, which constitutes a reportable error. In response, the system can determine a modification to the building structure to compensate for the discrepancy, adjust a schedule for construction or a cost estimate to compensate for an impact of the discrepancy or the modification to the building structure, and send a message that reports the discrepancy and the modification.

Abstract: Methods and systems are provided for characterizing interfacial tension (IFT) of reservoir fluids, which involves obtaining fluid property data that represents fluid properties of a reservoir fluid sample measured downhole at reservoir conditions, and inputting the fluid property data to a computational model that determines a value of oil-water IFT of the reservoir fluid sample based on the fluid property data. In embodiments, the fluid property data represents single-phase fluid properties of the reservoir fluid sample, such as fluid density and viscosity of an oil phase of the reservoir fluid sample and fluid density of a water phase of the reservoir fluid sample. In embodiments, the computation model can be based on machine learning or analytics combined with a thermodynamics-based physics model.

Abstract: The present disclosure relates to surfactants and methods used to increase hydrocarbon recovery from subterranean formations. Novel surfactant compositions are provided. In certain embodiments, the composition is a mixture of a sulfonated primary surfactant, water, and cosurfactants (anionic, zwitterionic/amphoteric or non-ionic surfactant). Methods to use these surfactant compositions to recover oil from formations using processes such as improved oil recovery (IOR) and flow-back processes are also provided.

Abstract: Methods, apparatuses, and embodiments related to a technique for monitoring construction of a structure. In an example, a robot with a sensor, such as a LIDAR device, enters a building and obtains sensor readings of the building. The sensor data is analyzed and components related to the building are identified. The components are mapped to corresponding components of an architect's three dimensional design of the building, and the installation of the components is checked for accuracy. When a discrepancy above a certain threshold is detected, an error is flagged and project managers are notified. Construction progress updates do not give credit for completed construction that includes an error, resulting in improved accuracy progress updates and corresponding improved accuracy for project schedule and cost estimates.

Abstract: The present disclosure generally relates to paraffin inhibitor formulations useful to inhibit formation of paraffin aggregates and paraffin deposition on the metal surfaces during hydrocarbon production, transportation, and refining process. The paraffin inhibitor formulations can lower the pour point of the crude oil, improve the flow characteristics of the oil, inhibit paraffin deposition on metal surfaces and disperse paraffin aggregates in the oil. Methods of making and using the paraffin inhibitor formulations are further disclosed.

Abstract: A method for tracking progression of a construction site at different points in time relative to an expected progression of the construction site as represented by a computer model. The method includes generating an image of the construction site by scanning the construction site with an imaging device and detecting a fiducial marker appearing in the image at a location on the construction site. The fiducial marker is unique among fiducial markers positioned on the construction site. The method further includes identifying the detected fiducial marker in association with a unique identifier among the fiducial markers and aligning a coordinate system of the identified fiducial marker with a coordinate system of the computer model, which represents the construction site at points in time.

Abstract: A microscale photoacoustic sensor uses the detection of ultrasound waves generated by a sample in response to incident light absorption to perform photoacoustic spectroscopy, imaging, and microscopy. The microscale photoacoustic sensor, including components to excite a sample and detect ultrasound waves, may be integrated onto a single chip. The microscale photoacoustic sensor may excite a sample using a metasurface collimator. The metasurface collimator includes an array of diffraction grooves to collimate an excitation beam uniformly out of the plane of the sensor to create a wide and homogeneous beam spot. The microscale photoacoustic sensor may detect ultrasound waves using an optical photoacoustic transducer. The optical photoacoustic transducer includes a resonator on a mechanical membrane to detect ultrasound waves with high sensitivity. The microscale photoacoustic sensor may be used in applications such as deep-tissue neural imaging or microfluidic biological screening.

Abstract: A private network includes a plurality of network security appliances participating in authenticating end users. Each network security appliance maintains a locally stored user list. A first network security appliance receives at least a portion of a non-local user list comprising second user identifier records for a second network security appliance of the plurality of network security appliances. The first network security appliance compares the local user list with the non-local user list received from the second network security appliance to identify one or more deviations. The first network security appliance merges the portion of the second user identifier records of the non-local user list corresponding with the one or more deviations with the first user identifier records of the local user list to generate an updated local user list. The first network security appliance authenticates a request to access the network using the updated local user list.

Abstract: The disclosed embodiments include a method for automating alignment of image data captured of a three-dimensional (3D) physical structure with a computer model of the 3D physical structure. The method can include obtaining two-dimensional (2D) images of the 3D physical structure undergoing construction, detecting fiducial markers corresponding to control points in the 2D images, and determining a transformation function based on the control points. The method can further include obtaining more 2D images, detecting other fiducial markers, and aligning image data to a computer model by utilizing the transformation function. The method can further include refining an alignment by utilizing a refinement transformation based on 3D physical elements of the 3D physical structure.

Abstract: Systems and methods for performing parallel program installations using a script-based installation mode are provided. An exemplary system can include: a plurality of backend servers on which a plurality of scripts is executed to automatically install application programs; and an application server, the application server being configured to: receive a plurality of web service calls from a user device via a user interface; locate web services in response to the web service calls; and send a plurality of Secure Shell (SSH) calls to a plurality of backend servers; in response to the web service calls, provide and expose the plurality of the scripts being as the web services, wherein a number of the web service calls processed by the application server are based on a hardware capacity of the application server.

Abstract: A photonic aerosol particle sensor includes a microfluidic sensor chamber in which is disposed a plurality of photonic waveguide resonators each having a photonic waveguide on an underlying substrate, along a separate waveguide resonator path with a lateral width different than that of other photonic waveguide resonators. All waveguides in the plurality have a common vertical thickness of a common waveguide material having a refractive index that is larger than that of the underlying substrate material. An optical input connection couples light into the waveguide resonators. An aerosol particle input fluidically connected to the microfluidic chamber fluidically conveys aerosol particles to the chamber, and an aerosol particle output fluidically connected to the microfluidic chamber fluidically conveys aerosol particles out of the chamber.

Abstract: Methods and systems are provided for characterizing interfacial tension (IFT) of reservoir fluids, which involves obtaining fluid property data that represents fluid properties of a reservoir fluid sample measured downhole at reservoir conditions, and inputting the fluid property data to a computational model that determines a value of oil-water IFT of the reservoir fluid sample based on the fluid property data. In embodiments, the fluid property data represents single-phase fluid properties of the reservoir fluid sample, such as fluid density and viscosity of an oil phase of the reservoir fluid sample and fluid density of a water phase of the reservoir fluid sample. In embodiments, the computation model can be based on machine learning or analytics combined with a thermodynamics-based physics model.

Abstract: Described are tracer eluting proppants, such as proppants that have polymeric coatings on them that include tracers, such as a fluorescent dye. The tracer eluting proppants can comprise proppant particles coated with a polymeric coating that can elute tracer under some, but not all conditions. For example, the tracer can be eluted at elevated temperature, pH, and/or salinity conditions, but not elute at lower temperature, pH, and/or salinity conditions. Methods of making and using tracer eluting proppants are also disclosed, including methods for characterizing subterranean reservoirs.

Abstract: A photonic aerosol particle sensor includes a plurality of photonic waveguide resonators each having a photonic waveguide disposed along a separate waveguide resonator path and each photonic waveguide having a lateral waveguide width different than the waveguide width of other photonic waveguide resonators in the plurality. All waveguides in the plurality of photonic waveguide resonators have a common vertical thickness and are formed of a common photonic waveguide material. An optical input connection couples light into the waveguide resonators. A particle input conveys aerosol particles toward the waveguide resonators and an aerosol particle output conveys aerosol particles away from the waveguide resonators. At least one optical output connection is optically connected to accept light out of the plurality of photonic waveguide resonators to provide a signal indicative of at least one characteristic of the aerosol particles to be analyzed.

Abstract: Devices, systems, and methods of the present disclosure are directed to accurate and non-invasive assessments of anatomic vessels (e.g., the internal jugular vein (IJV)) of vertebrates. For example, a piezoelectric crystal may generate a signal and receive a pulse echo of the signal along an axis extending through the piezoelectric crystal and an anatomic vessel. A force sensor disposed relative to the piezoelectric crystal may measure a force exerted (e.g., along skin of the vertebrate) on the anatomic vessel along the axis. The pulse echo received by the piezoelectric crystal and the force measured by the force sensor may, in combination, non-invasively and accurately determine a force response of the anatomic vessel. In turn, the force response may be probative of any one or more of a variety of different characteristics of the anatomic vessel including, for example, location of the anatomic vessel and pressure of the anatomic vessel.

Abstract: A microscale photoacoustic sensor uses the detection of ultrasound waves generated by a sample in response to incident light absorption to perform photoacoustic spectroscopy, imaging, and microscopy. The microscale photoacoustic sensor, including components to excite a sample and detect ultrasound waves, may be integrated onto a single chip. The microscale photoacoustic sensor may excite a sample using a metasurface collimator. The metasurface collimator includes an array of diffraction grooves to collimate an excitation beam uniformly out of the plane of the sensor to create a wide and homogeneous beam spot. The microscale photoacoustic sensor may detect ultrasound waves using an optical photoacoustic transducer. The optical photoacoustic transducer includes a resonator on a mechanical membrane to detect ultrasound waves with high sensitivity. The microscale photoacoustic sensor may be used in applications such as deep-tissue neural imaging or microfluidic biological screening.