Abstract: A method includes printing one or more features on a surface of a structure of an aircraft, and providing, by the one or more features, one or more liquid management patterns. The printing can includes controlling, by a control unit, a printer to form the one or more features on the surface of the structure. The method can also include curing the one or more features with ultraviolet (UV) light.

Abstract: A method for bonding materials includes steps of: (1) enclosing at least a portion of a first material and a second material within an interior volume of a constraining container; (2) expanding an expandable medium disposed within the interior volume; (3) applying a positive pressure to the constraining container and at least one of the first material and the second material in response to expanding the expandable medium; and (4) bonding the first material and the second material together.

Abstract: A composite curing system includes system includes a constraining container and an expandable medium. The constraining container includes a base and a cover and has an interior volume. The constraining container is configured to enclose at least a portion of a composite structure. The expandable medium configured to be disposed within the interior volume between at least a portion of the constraining container and the composite structure. The interior volume of the constraining container is selectively variable.

Abstract: A foam sheet core, including a plurality of foam sheet walls defining an array of hollow cells, wherein the plurality of foam sheet walls are bonded together to form the array of hollow cells, each of the plurality of foam sheet walls has a thickness from about 0.002 inches to about 0.08 inches, and each of the plurality of foam sheet walls has an average height from about 0.05 inches to about 5 inches.

Abstract: Disclosed are a polyvinyl alcohol film and a preparation method therefor. The saturated water absorption of the amorphous structure in the polyvinyl alcohol film is x, the water absorption increased due to destruction of the crystal surface defect structure in the polyvinyl alcohol film is y, and x/(x+y) is 0.82 to 0.93. The polyvinyl alcohol film has a softening point of 65° C. to 75° C., and a degree of swelling of 180% to 220%.

Abstract: Technologies for a photon pair source integrated on a photonic die are disclosed. In an illustrative embodiment, a photonic die includes an integrated semiconductor laser. The integrated semiconductor laser pumps a Raman laser on the same die. The Raman laser has much lower noise near the laser peak compared to the semiconductor laser, due to a smaller gain bandwidth and less amplified stimulated emission. Due to the low noise, the Raman laser can be used to pump a spontaneous four-wave mixing (SFWM) source directly, without off-chip filtering required. The SFWM source can generate entangled photons with a high signal-to-noise ratio, with applications for quantum cryptography, quantum computing, and other quantum information processing tasks.

Abstract: A hot server is identified from a plurality of servers based on one or more server metrics associated with the hot server. A hot data range stored by the hot server is identified based on one or more read density metrics. The hot data range comprises a range of data values with a higher volume of access requests compared to other data values stored by the hot server. The hot data range is replicated across a number of additional servers.

Abstract: A system for locally curing a composite structure includes a constraining container including a cover and having an interior volume. The cover is configured to enclose a portion of a composite structure. The system includes a retainer configured to hold the cover against the composite structure. The system included an expandable medium configured to be disposed within the interior volume of the cover between the walls and the composite structure.

Abstract: A hot server is identified from a plurality of servers based on one or more server metrics associated with the hot server. A hot data range stored by the hot server is identified based on one or more read density metrics. The hot data range comprises a range of data values with a higher volume of access requests compared to other data values stored by the hot server. The hot data range is replicated across a number of additional servers.

Abstract: A method for detecting a processing degree of wheat flour is provided, belonging to the technical field of analysis and detection. Thermogravimetric analysis of a wheat flour to be tested is conducted to obtain a pyrolysis characteristic curve, and then a correlation between characteristic values of a pyrolysis curve (including a pyrolysis residual mass fraction, a pyrolysis activation energy at 238° C. to 338° C., and a pyrolysis peak area at 290° C. to 320° C.) and key indicators of the processing degree of wheat flour (including ash content, bran speck content, and starch content) is established based on a pyrolysis kinetic equation and first derivative derivation. Weight values of three principal component indicators and their characteristic values are obtained by combining principal component analysis (PCA), such that a comprehensive evaluation function formula is constructed for the processing degree of wheat flour.

Abstract: A composite curing system includes a casting and an expandable medium. The casting is configured to be applied over at least a portion of a composite structure and to harden to enclose at least the portion of the composite structure. The expandable medium is configured to expand such that the expandable medium applies positive pressure to the composite structure and the casting.

Abstract: A composite curing system includes system includes a constraining container and an expandable medium. The constraining container includes a base and a cover and has an interior volume. The constraining container is configured to enclose at least a portion of a composite structure. The expandable medium configured to be disposed within the interior volume between at least a portion of the constraining container and the composite structure. The interior volume of the constraining container is selectively variable.

Abstract: A system for locally curing a composite structure includes a constraining container including a cover and having an interior volume. The cover is configured to enclose a portion of a composite structure. The system includes a retainer configured to hold the cover against the composite structure. The system included an expandable medium configured to be disposed within the interior volume of the cover between the walls and the composite structure.

Abstract: Methods of recovering and/or recycling expanded polymer tooling, the methods including collecting expanded polymer tooling, reducing the collected expanded polymer tooling into smaller particles, treating the reduced expanded polymer tooling in order to yield an at least partially purified recovered polymer composition, and then collecting the at least partially purified recovered polymer composition. The at least partially purified recovered polymer composition can then be used to form new expandable polymer tooling.

Abstract: A method for predicting a mineral composition of an evaporite penetrated by a first portion of a wellbore following a planned wellbore path through a sedimentary basin and determining an observed mineral composition of the evaporite. A non-transitory computer readable medium storing instructions executable by a computer processor including receiving a history of sea-level for a sedimentary basin, using a seawater evaporation model to predict a salinity threshold and produce a seawater evaporation curve, where the seawater evaporation curve includes an amount of minerals contained in a body of seawater as a function of salinity, identifying depositional portions of the history of sea-level, and developing a mathematical model to generate the geological-time dependent salinity curve based on the depositional portions of the history of sea-level.

Abstract: A panel assembly (such as for an internal cabin of an aircraft) includes at least one liquid flow path formed on at least one surface through surface treatment. The at least one liquid flow path is formed in relation to at least one bank on the at least one surface. The at least one liquid flow path is configured to divert liquid to a desired location.

Abstract: A method for indicating a sanitation status of a surface may comprise contacting a coating on a surface with a cleaning composition, wherein the coating comprises a chromic material and exhibits a baseline optical state under illumination with light having a first wavelength prior to contact with the cleaning composition and an altered optical state under illumination with light having a second wavelength after contact with the cleaning composition, the cleaning composition configured to induce a switch from the baseline optical state to the altered optical state; and illuminating the coating with the first wavelength of light, the second wavelength of light, or both, to reveal a sanitation status of the surface. Systems for indicating a sanitation status of a surface are also provided.