Abstract: A cofferdam is disclosed that includes an open frame structure having double walls defining a hollow space within each double wall, with each double wall having an open bottom end and a closed top end. Each of the double walls are configured to act as suction piles allowing liquid to be removed from the space within each double wall to thereby induce negative pressure when the cofferdam is installed in a sub-sea configuration. Each of the double walls may include a plurality of partitions respectively defining a plurality of suction piles, the suction piles fluidically coupled by a manifold that may allow liquid to be removed from the suction pile to thereby drive the cofferdam structure into the subsea surface due to the induced negative pressure. A further embodiment cofferdam structure includes an open frame structure and one or more suction piles attached to the open frame structure.

Abstract: Disclosed herein is a technique of configuring flexible photovoltaic tracker systems with high damping and low angle stow positions. Under dynamic environmental loads implementing a high amount of damping (e.g., greater than 25% of critical damping, greater than 50% of critical damping) or a very high amount of damping (e.g., 100% or greater of critical damping, infinite damping) enables the flexible tracker system to prevent problematic aeroelastic behaviors while positioned in a low stow angle. The disclosed technique is further applied to a prototyping process during wind tunnel testing.

Abstract: Technology is described for picking or placing items within a storage area using an AR headset. One method may include scanning an optical code on a mobile storage cart to determine a position and orientation of the mobile storage cart. Item data may be retrieved for an item to be retrieved from a storage location in the storage area and placed on the mobile storage cart. A first graphical guidance indicator can be provided to guide a user of the AR headset to the storage location of the item to be picked. An optical code on the item may also be scanned. A placement indicator may be displayed and overlaid on a storage bin on the mobile storage cart representing a location where the item is to be placed.

Abstract: The present disclosure provides a privacy control circuit including an array of pixel cells having a first output data path and a second output data path, the first output data path including a one-time data protection circuitry, a sensor communication interface communicatively coupled to the first output data path, an on-sensor processor coupled to the second output data path and communicatively attached to the sensor communication interface, and a data register communicatively attached to the sensor communication interface.

Abstract: A monitoring system for a brake assembly of a vehicle may include a temperature sensor disposed proximate to the brake assembly to measure an actual temperature of the brake assembly, a controller operably coupled to the temperature sensor and comprising a thermal model, the controller being configured to determine a predicted temperature of the brake assembly using the thermal model, and a user interface operably coupled to the controller to provide a notification to an operator of the vehicle. The controller may compare the actual temperature to the predicted temperature and may automatically generate the notification responsive to the actual temperature exceeding the predicted temperature by a threshold amount.

Abstract: An embodiment of a phase mask includes a light blocking layer disposed on a substrate, where the light blocking layer has a number of optically transmissive regions each configured as a first pattern. The first pattern includes two segments that have different phase configurations from each other, and the light blocking layer includes at least three angular orientations of the first pattern.

Abstract: In an aspect, a method for migrating data records to a federated database system includes obtaining data records from a data source in a first federated database system; generating a data snapshot file based on the obtained data records and data indicative of a characteristic associated with the obtained data records; generating a hash of the data snapshot file to prevent modification of the data snapshot file; storing the data snapshot file and the generated hash in a data storage; migrating the obtained data records from the data snapshot file to a data target in a second federated database system, the migrating including: retrieving the data records from the data snapshot file stored in the data storage; providing the retrieved data records to the data target according to a mapping between a characteristic of the data source and a characteristic of the data target.

Abstract: A method and server for generating modified audio data for a video file are disclosed. The method includes acquiring a sequence of first audio portions, and a sequence of second audio portions in different languages. The method includes generating a plurality of candidate arrangements of the sequence of the second audio portions, where a given candidate arrangement is associated with candidate timestamps in the video file and candidate compression rates for respective ones from the sequence of second audio portions. The method includes selecting a target arrangement for the sequence of the second audio portions from the plurality of candidates. The selection is based on the target arrangement having a minimal penalty score amongst penalty scores associated with the plurality of candidates. The method includes generating at least one modified audio portion for the video file as a translation of the audio data using the target arrangement.

Abstract: An apparatus and methods are provided for a front plate having a diverging central bore for firearm sound suppressors that improves noise and flash characteristics during firing a weapon. The central bore is disposed between a back surface and a front surface of the front plate. An untapered portion of the central bore extends from the back surface to a diverging portion that opens toward the front surface. The diverging portion includes a curvature profile configured to allow for more controlled expansion of high-pressure propellant gases exiting of the suppressor through the central bore. The curvature profile provides an included angle of the central bore that decreases secondary flash events accompanying the expulsion of propellant gases accompanying a fired bullet exiting the suppressor through the central bore. The curvature profile exhibits a cross-sectional area of the central bore that is proportional to a distance along the diverging portion.

Abstract: A self-righting stick-type object holder for pets includes a set of fixed structure, that include a top shell and a bottom shell, ballast disposed in the bottom shell, and a collet disposed in the interior of the holder and having a plurality of collet jaws. The top and bottom shells are adjustably coupled to one another and define an interior of the holder. The bottom shell has an exterior having a spherical or semi-spherical profile to facilitate a smooth or relatively-smooth rolling function when the holder is placed upright on a flat surface. The fixed structures include tapered internal surfaces. The jaws have inward-facing contact surfaces that collectively define a central receptacle and outward-facing tapered surfaces that interact with the tapered internal surfaces.

Abstract: A method of planarizing an overcoat layer on a surface-relief grating includes dispensing a layer of a resin material that is curable by heat or electromagnetic radiation on a surface-relief grating that includes a plurality of grating grooves, pressing the layer of the resin material using a planar imprint stamp, curing the resin material in the layer of the resin material, and detaching the planar imprint stamp from the layer of the resin material. In one example, a thickness of the overcoat layer on top of grating ridges of the surface-relief grating is equal to or less than 20 nm, and a surface peak-to-valley height of a top surface of the overcoat layer is equal to or less than 5 nm.

Abstract: In general, embodiments relate to a method for generating synthetic full backups, the method comprising: performing a verification that a previous backup of source data stored in a data domain is a failed synthetic full backup, obtaining based on the verification a latest snapshot of the source data, obtaining based on the verification a prior snapshot of the source data making a determination, using a copy list that a first portion of the data items in the copy list exists in the previous backup and a second portion of the data items does not exist in the previous backup, and performing based on the determination a copy operation to copy the second portion of the data items to the data domain to obtain a synthetic full backup.

Abstract: A wearable device includes a ring-shaped housing having a central opening and defining an annular interior volume. The housing is configured to be worn within an ear of a subject such that the subject's ear canal is exposed by the central opening. At least one optical emitter and at least one optical detector are supported within the housing. The housing includes at least one window through which light can be delivered from the at least one optical emitter to the ear, and through which light from the ear can be delivered to the at least one optical detector.

Abstract: Systems and methods for ultrasonically-assisted placement of orthopedic implants is described herein. An example method may comprise delivering ultrasonic energy to a surgical instrument such as a screw driver, Jamshidi needle, awl, probe, or tap that is in contact with the bone region targeted for removal and/or being prepared for implant placement. The method may further comprise delivering the ultrasonic energy via a probe passed through a cannulated surgical instrument and/or implant. An example system may comprise an ultrasonic generator coupled to a transducer, a probe or surgical instrument coupled to the transducer, a cannulated surgical instrument that allows passage of the probe, and a computing device configured to control the ultrasonic generator and take input from the user.

Abstract: An apparatus may include one or more manifolds, each including a shell having an inner portion and an outer portion. Each shell may have a first set of outlets in a first wall and a second set of outlets in a second wall that approximately faces the first wall. Each manifold is shaped to accommodate a tooth. A rotating inlet joint, having an inlet channel and a rotating joint, may enable fluid flow into each manifold from the inlet channel at any angle relative to an axis of rotation defined by the rotating joint. In each manifold, the first set of outlets and the second set of outlets are oriented towards a tooth and/or gums associated with the tooth. The inner portion and the outer portion of each shell cooperate to direct fluid flow substantially horizontal to, and then substantially perpendicular to, the fluid flow exiting the inlet channel.

Abstract: Technologies are provided for generation of an executable package that provides a tenant-specific service. Generation of the executable package can be based on customization assets and a core codebase. The core codebase can define core modules that provide a core service that is common across tenants. Each core module includes one or multiple extension points. The customizations can be defined within one or multiple virtual partitions, where a virtual partition includes a filesystem or another type of non-transitory storage structure. The VP can include multiple customization resources and customization components. The customizations can permit building extension modules that can be mapped onto respective extension points of core module(s) in order to customize the common core service and yield the tenant-specific service. The core codebase can be built to generate built core modules. The executable package can be formed by combining built extension modules and built core modules.

Abstract: For intelligent sportscast production for enhanced streaming of a live sporting event, a method includes selecting a production route model with predetermined conditions that indicate values for initial sportscast velocity vectors for composing an ordered stream of synthesized audio segments and/or synthesized video segments for a live sporting event occurring at a sports venue based at least on event type, game state, hosting team, and sportscast output type; caching sets of live event observations for generating production cues during the live sporting event to be composed as synthesized audio segments and/or synthesized video segments, the live event observations derived from scoreboard data obtained from: a live scoreboard data feed associated with an onsite scoreboard; and/or machine recognition of game state data from a live video feed captured by an onsite camera; and producing adjusted synthesized content velocity vectors based on the live event observations and/or a current game state.

Abstract: A sweeper vehicle may have an automatic side broom strike pattern positioning system including a plurality of actuators (e.g., pneumatic, hydraulic, and/or powered leadscrew) and a plurality of sensors (e.g., inclinometers and position sensors). The strike pattern may be maintained at a desired position as the side broom moves to different positions in a range of movement between a fully extended position and a fully retracted position. The system may have an override feature by which a vehicle operator may interrupt the automatic side broom positioning to allow the vehicle operator to take direct control of one or more side brooms, including the broom deployment angle and broom pitch and roll to create desired strike patterns for the side brooms. Related methods are also described.

Abstract: A pet hair removal apparatus has a plurality of engagement members. The apparatus operates in a plurality of different operational engagement position in which different engagement members contact the surface to remove pet hair from the surface depending on which operational engagement position the apparatus is positioned. In one operational engagement position, two or more engagement members, that are different types of engagement members, simultaneously contact the surface. In another operational engagement position, only one type of engagement member contacts the surface to remove pet hair from the surface.

Abstract: A method receiving at least one transcribed speech file of at least one person; identifying a plurality of utterance-delimited multiword units in the at least one transcribed speech file; generating a plurality of utterance-based data vectors corresponding to the plurality of utterance-delimited multiword units by assigning a numerical data token to each word in each utterance-delimited multiword unit; determining at least one utterance-delimited multiword unit from the plurality of utterance-delimited multiword units having question-indicative word patterns by inputting the plurality of utterance-based data vectors into at least one machine learning model, configured to identify the question-indicative word patterns by computing a probability of a word or groups of words in each of the plurality of utterance-delimited multiword units; and identifying at least one question in the at least one transcribed speech file of the speech of the at least one person using the question-indicative word patterns.