Abstract: A gas turbine engine includes a rotatable component, and an engine casing disposed about the rotatable component. The engine casing includes a casing treatment having a plurality of grooves and a plurality of acoustic chambers. Each of the plurality of grooves is defined in the engine casing with a groove depth, and each of the plurality of acoustic chambers has an acoustic chamber depth based on the groove depth. Two of the plurality of grooves are associated with one of the plurality of acoustic chambers, one of the plurality of grooves is associated with a second one of the plurality of acoustic chambers, and the one of the plurality of acoustic chambers has an acoustic configuration that is different than the second one of the plurality of acoustic chambers.

Abstract: A gas turbine engine includes a rotatable component, and an engine casing disposed about the rotatable component. The engine casing includes a casing treatment having a plurality of grooves and a plurality of acoustic chambers. Each of the plurality of grooves is defined in the engine casing with a groove depth, and each of the plurality of acoustic chambers has an acoustic chamber depth based on the groove depth. Two of the plurality of grooves are associated with one of the plurality of acoustic chambers, one of the plurality of grooves is associated with a second one of the plurality of acoustic chambers, and the one of the plurality of acoustic chambers has an acoustic configuration that is different than the second one of the plurality of acoustic chambers.

Abstract: Methods and apparatus for electrical impedance spectroscopy for non-destructive, real-time, tracking of relative water content and stress responses in plants.

Abstract: A system for marine vessel power management is disclosed. The system includes a switchgear and a first generator, the first generator positioned on a marine vessel and in electrical communication with the switchgear. The system also includes one or more batteries, the one or more batteries positioned on the marine vessel and in electrical communication with the switchgear and shore power where shore power is in electrical communication with the switchgear and wherein shore power includes shore power rectifier. The system further includes household load in electrical connection with the switchgear and propulsion motors in electrical connection with the switchgear. In addition, the system includes a control system, the control system in electrical connection with the switchgear. The control system is programmed.

Abstract: Gas turbine engines are provided that include an annular splitter nose structure configured to impinge an accelerated air stream within the gas turbine engine and separate the accelerated air stream into a primary air stream directed into a core duct and a secondary air stream directed into a bypass duct. The splitter nose structure may include a leading edge that is pitched radially outward relative to a rotational axis of the gas turbine engine at a pitch angle of between about 0.5 and 20 degrees. The splitter nose structure may include an irregular cross-sectional shape.

Abstract: Methods and apparatus for electrical impedance spectroscopy for non-destructive, real-time, tracking of relative water content and stress responses in plants.

Abstract: A method for controlling informatics and biological processes is disclosed. The method may include projecting at least one portion of a body of a user with coherent holographic light waves by use of a coherent light source. The method includes generating a plurality of images based on the projection of the at least one portion of the body of the user with the coherent holographic light waves. The method includes analyzing the generated plurality of images to determine at least one of: biological information of the body of the user, or information states of a nervous system associated with the user. The method includes transmitting one or more signals to at least neurons in the body of the user based on the analyzed plurality of images for control of one or more biological processes associated with the user.

Abstract: A battery pack includes a first parallel cell group, a second parallel cell group, a first passive balancing circuit, a second passive balancing circuit, and a balancing controller operatively coupled to the first and second passive balancing circuits positioned to control the first and second switches. The balancing controller may measure a voltage of the first parallel cell group and second parallel cell group, provide a pulse-width modulated signal to the first switch with the balancing controller to control the first switch, and dissipate stored energy from the first parallel cell group through the first load resistor.

Abstract: The current document is directed to graph databases and, in particular, to improvements in the operational efficiencies of, and the range of functionalities provided by, graph databases. One currently disclosed improvement provides for associating user-defined and developer-defined functions with node and relationship entities stored within the graph database. These entity-associated functions are executed in entity-associated execution environments provided to the entities during query execution. Another currently disclosed improvement provides text-replacement-based preprocessing of graph-database queries for increased clarity and for increasing the speed and accuracy with which the queries can be formulated.

Abstract: A compact, mask-mountable powered air purifying respirator (“PAPR”) includes a housing and an impeller driven by a motor to draw air in through an inlet in the housing and direct the air to an outlet at an opposite end of the housing. The impeller comprises S-shaped fan blades that direct the air radially outward from the bottom of the impeller. The radial airflow meets S-shaped fins on a flow straightener that redirect the airflow downward through the PAPR housing outlet. The fan blades and flow straightener drive the airflow directly and efficiently, without unnecessary travel of air through the PAPR assembly, thus providing an improved airflow efficiency.

Abstract: A system includes an energy storage system (ESS), having battery pods and one or more battery cells disposed within the battery pods. The system also includes an ESS trailer, the ESS mounted on the ESS trailer. Also, the system includes a water spray subsystem. The water spray subsystem includes a plurality of sprinkler nozzles mounted within the battery pods and a first fluid connection fluidly connecting the sprinkler nozzles to a pump package. In addition, the water spray subsystem includes a second fluid connection, fluidly connecting the pump package to a water storage supply. The system includes a dry chemical spray subsystem, which has a dry chemical supply vessel, the dry chemical supply vessel mounted to the ESS trailer and a plurality of dry chemical distribution nozzles mounted within the battery pods, the dry chemical distribution nozzles fluidly connected to the dry chemical supply vessel by dry chemical distribution piping.

Abstract: Methods and apparatus for electrical impedance spectroscopy for non-destructive, real-time, tracking of relative water content and stress responses in plants.

Abstract: The current document is directed to graph databases and, in particular, to improvements in the operational efficiencies of, and the range of functionalities provided by, graph databases. One currently disclosed improvement provides for associating user-defined and developer-defined functions with node and relationship entities stored within the graph database. These entity-associated functions are executed in entity-associated execution environments provided to the entities during query execution. Another currently disclosed improvement provides text-replacement-based preprocessing of graph-database queries for increased clarity and for increasing the speed and accuracy with which the queries can be formulated.

Abstract: Disclosed is an integrated respiratory and eye protective system that is light-weight and easily carried, is fast and easy to apply by a user, and that ensures protection of a user against inhalation or ingestion of or exposure to environmental contaminants, including for example dangerous aerosolized chemical, biological, and radiological materials. The system includes a mask that fits tightly over a user's nose and mouth and down and around their neck, with two filter assemblies on either side of the mask that filter environmental contaminants out of the air as the user breathes in through the mask. Goggles are provided that provide a single, continuous seal against the user's face and about the user's eyes, with the bottom, central portion of the goggles configured to engage and closely mate with the top, central portion of the mask.

Abstract: Systems and methods for measuring plant leaf gas exchange based on instantaneous mass balance in the sample chamber. The response of leaf net assimilation rate (Anet) to computed leaf internal CO2 concentration (C1) is measured by continuously varying the input CO2 concentration and measuring the continuous difference between chamber input (reference) and output (sample) concentrations to compute a continuous series of Anet values, which can then be plotted against computed Ci. When combined with a similar response test using an empty chamber test to allow for sample chamber mixing and/or gas analyzer match dynamics and/or small flow-related residual time delays, such method provides accurate and rapid A Ci response (RACiR) curves in a much shorter time than conventional methods.

Abstract: An apparatus for displaying a three-dimensional image includes a base; a driving mechanism disposed on the base; a support element movably mounted to the base and controllably driven by the driving mechanism; and a light source set disposed on the support element and configured to controllably form a predetermined pattern of light emission; wherein the driving mechanism is configured to move the support element in a predetermined pattern of movement, a plural-ity of light emission patterns formed by the light source set during the movement of the support element collectively constituting a three-di-mensional image perceptible by a human eye. A method for displaying a three-dimensional image is also disclosed.

Abstract: An electromagnetic sensor is configured for deployment at or near a cutting tool connected to a drill string and moveable by a horizontal directional drilling machine. The sensor comprises a housing having an exterior surface which is exposed to soil when the drill string and cutting tool move through the soil. An antenna arrangement and a power source are supported by the housing. Circuitry is disposed in the housing and coupled to the power source and the antenna arrangement. The circuitry is configured to generate a signal for transmission by the antenna arrangement, measure a performance characteristic of the antenna arrangement using a power detector coupled to at least a transmit antenna of the antenna arrangement, and detect a change in the antenna performance characteristic relative to a threshold indicative of contact between the cutting tool and a buried utility.

Abstract: An interface device for a computerized system, the interface device including an engagement element configured for operable engagement with a region on a touchscreen of the computerized system to enable interfacing with the computerized system via the touchscreen, wherein the engagement element includes a viewing surface configured to allow a representation of content that is displayed at the region on the touchscreen with which the engagement element is operably engaged, to be visible through the viewing surface.

Abstract: A locator device and methods of use are disclosed. The locator device includes a first locating system configured to generate to sense an electromagnetic field emanating from a sonde associated with a drill head, and a second locating system including a global positioning system. The locator device includes a display on the locating system configured to display a map of the area in which the locator device resides based on a location detected by the global positioning system. The locator device also includes control electronics configured to, upon receipt of an input from a user, record location data in a memory associated with the locator device for use by a horizontal directional drilling control system.

Abstract: An interface device for a computerized system, the interface device including an engagement element configured for operable engagement with a region on a touchscreen of the computerized system to enable interfacing with the computerized system via the touchscreen, wherein the engagement element includes a viewing surface configured to allow a representation of content that is displayed at the region on the touchscreen with which the engagement element is operably engaged, to be visible through the viewing surface.