Abstract: A database system is operable to determine a query for execution. A disjunction of a plurality of conjunctive normal form (CNF) filtering predicates is determined based on filtering predicates of the query. An IO pipeline is generated based on the disjunction of the plurality of CNF filtering predicates that includes, based on applying at least one type of optimization, at least one shared IO element common to multiple ones of plurality of the CNF filtering predicates. The IO pipeline is executed in accordance with execution of the query to generate a filtered subset of a plurality of rows that each meet at least one of the plurality of CNF filtering predicates.

Abstract: Systems and methods for generating solution recommendations for power plant operation can be provided by certain embodiments of the disclosure. In one embodiment, a system may include a processor configured to collect power plant operational data from power plant components. The power plant operational data may be analyzed to identify cost factors for the power plant components. Based at least in part on the power plant operational data and the cost factors, upgrade opportunities for the power plant components may be determined. Financial values may be calculated for the upgrade opportunities. Based at least in part on the financial values, recommendations may be generated using a product interaction database and provided as an electronic output to a user.

Abstract: An echolocation device assists visually impaired persons to navigate their environment. The echolocation device comprises a micro control unit, a power source operably connected to the micro control unit, a band pass preamplifier operably connected to the micro control unit, a power amplifier operably connected to the band pass preamplifier, a piezoelectric speaker operably connected to the power amplifier, and a user interface operably connected to the micro control unit. The device emits sound waves that echo off nearby surrounding objects. The visually impaired person listens to the echoes to determine the location or size of the surrounding objects.

Abstract: Systems and methods for generating solution recommendations for power plant operation can be provided by certain embodiments of the disclosure. In one embodiment, a system may include a processor configured to collect power plant operational data from power plant components. The power plant operational data may be analyzed to identify cost factors for the power plant components. Based at least in part on the power plant operational data and the cost factors, upgrade opportunities for the power plant components may be determined. Financial values may be calculated for the upgrade opportunities. Based at least in part on the financial values, recommendations may be generated using a product interaction database and provided as an electronic output to a user.

Abstract: An echolocation device assists visually impaired persons to navigate their environment. The echolocation device comprises a micro control unit, a power source operably connected to the micro control unit, a band pass preamplifier operably connected to the micro control unit, a power amplifier operably connected to the band pass preamplifier, a piezoelectric speaker operably connected to the power amplifier, and a user interface operably connected to the micro control unit. The device emits sound waves that echo off nearby surrounding objects. The visually impaired person listens to the echoes to determine the location or size of the surrounding objects.