Abstract: A controlled low strength material has constituents that include a cement, an aggregate, and a water. The aggregate includes concrete demolition waste. The controlled low strength material has a compressive strength that does not exceed 8.3 MPa, measured at 28 days. The controlled low strength material can alternately include a heavy oil fuel ash and the controlled low strength material can have a compressive strength that does not exceed 2.10 MPa, measured at 28 days.

Abstract: A cementitious blend composition and a concrete mix composition preferable for making concrete resistant to high temperatures and alkaline conditions, particularly for making durable concrete for constructing an alumina digester tank in an aluminum smelter. The cementitious blend composition includes at least one hydraulic cement, silica fume (SF), and natural pozzolan (NP), wherein a weight percent ratio of at least one hydraulic cement:SF:NP in the cementitious blend composition lies in the range of (24-63):(5-44):(32-40) with the sum of the weight percentages of the at least one hydraulic cement, the SF, and the NP not exceeding 100%. The concrete mix composition comprises water and the cementitious blend composition, wherein a weight ratio of the water to the cementitious blend composition is 0.2-0.5, and wherein the concrete mix composition has a content of the cementitious blend composition of 400-550 kg/m3.

Abstract: A method for sending environmental data to a vehicle in transit is disclosed. The method is performed by a ground system. The method includes receiving new environmental data from a plurality of environmental data providers. The method also includes synthesizing an update template that identifies recommended portions of relevant data that are available to be uploaded for at least one of a plurality of environmental data services. The method also includes sending the update template to the vehicle using a low-bandwidth connection, wherein the update template is sent by the ground system without first receiving a request for the update template. The method also includes receiving, from the vehicle, a request for the recommended portions of relevant data. The method also includes sending the recommended portions of relevant data to the vehicle in an update package using a high-bandwidth connection.

Abstract: Systems and methods are disclosed for identifying traffic to follow, TTF, on a display device. TTF, identification data identifying a vehicle to follow is received. Transmitted data is received from the vehicle to follow. Aircraft attribute data for the vehicle to follow is derived at least from the transmitted data and from target model data from a target model database. The aircraft attribute data includes position, orientation and aircraft dimensions. Enhanced vision system, EVS, imaging data is received from at least one EVS camera. An area of the EVS imaging data to be visually distinguished to highlight the traffic to follow is calculated. The area calculated is based on the aircraft attribute data including position, orientation and aircraft dimensions. Image processing is performed on the area of the EVS imaging data to visually distinguish the area so as to highlight the vehicle to follow, thereby providing highlighted EVS imaging data.

Abstract: A controlled low strength material has constituents that include a cement, an aggregate, a heavy oil fly ash, and a water. The controlled low strength material has a compressive strength in a range of 300 kPa to 2.1 MPa. In certain embodiments, the heavy oil fly ash can be part of a heavy oil fly ash slurry.

Abstract: A green concrete and mortar compositions free of Portland cement are disclosed. The compositions comprise Natural pozzolan, nanosilica particles, and alkaline activator. The green concrete produced from the composition of the invention is cured at ambient temperature and has higher compressive strength than that of concrete made with Portland cement.

Abstract: Methods and systems are provided for providing a runway awareness system for an aircrew of an aircraft. The method comprises receiving a first data stream that provides operational characteristics of a primary aviation parameter on approach to the runway. A second data stream is also received that provides operational characteristics of an alternative aviation parameter on approach to the runway. The first data stream and the second data stream are then displayed in a comparative layout format on a flight display for the aircrew of the aircraft during the approach to the runway.

Abstract: A flight deck system for providing progressive taxiing guidance is provided. The flight deck system comprises a controller configured to: generate a graphical insert to overlay a small portion of an active navigation display, the graphical insert providing a progressive depiction of upcoming travel surfaces on a cleared taxi route. The graphical insert comprises a non-linear map with non-linear scaling, a current travel surface alphanumeric indicator, and a current travel surface stick character representative of a current travel surface. The controller is further configured to position, on the graphical insert, a crossing travel surface sign, a first-turn travel surface stick character, and a second-turn travel surface stick character; update the position of the crossing travel surface sign, the first-turn travel surface stick character, and/or the second-turn travel surface stick character as the aircraft travels; and cause the graphical insert to be displayed as an overlay on the active navigation display.

Abstract: Disclosed are methods, systems, and non-transitory computer-readable medium for managing energy use in a vehicle. For instance, the method may include receiving forecasted data from a first external source, receiving real-time data corresponding to at least one weather parameter at a first location at a first time, and continuously determining whether to perform an adjustment to a control parameter of the vehicle by using a machine learning model that is based on the forecasted data for the at least one weather parameter, the real-time data for the at least one weather parameter, a battery condition of the vehicle, and/or an estimated amount of energy consumed by traveling along a first navigation path.

Abstract: A nanozeolite modified green concrete contains alkali-activated natural pozzolan. Natural pozzolan is a green and sustainable material, potentially useful in green concrete, e.g., to curb greenhouse gas emissions associated with ordinary Portland cement production. Nanozeolite (NZ) is present as an additive to the green concrete, e.g., at 3 to 5 wt. %, of natural pozzolan to improve strength development and microstructural properties, resulting in superior strength and denser microstructure compared to a green concrete without nanozeolite.

Abstract: Systems and methods are disclosed for identifying traffic to follow, TTF, on a display device. TTF, identification data identifying a vehicle to follow is received. Transmitted data is received from the vehicle to follow. Aircraft attribute data for the vehicle to follow is derived at least from the transmitted data and from target model data from a target model database. The aircraft attribute data includes position, orientation and aircraft dimensions. Enhanced vision system, EVS, imaging data is received from at least one EVS camera. An area of the EVS imaging data to be visually distinguished to highlight the traffic to follow is calculated. The area calculated is based on the aircraft attribute data including position, orientation and aircraft dimensions. Image processing is performed on the area of the EVS imaging data to visually distinguish the area so as to highlight the vehicle to follow, thereby providing highlighted EVS imaging data.

Abstract: The present disclosure relates to a vertical takeoff and landing, VTOL, vehicle having a landing aid and associated methods. The landing aid includes at least one processor is configured to: receive image data from an image capture device, receive altitude data from the altimeter, retrieve template landing pad image data for a target landing pad from the database, scale the template landing pad image data based on the altitude data, compare the scaled template landing pad image data and the image data received from the image capture device to locate the target landing pad therein, thereby providing target landing pad localization data, and control a function of the VTOL vehicle based on the target landing pad localization data.

Abstract: An aircraft and a method for operating the same may include, but is not limited to, a flight management system, a vertical situation display, and a processor configured to determine a first variable, a second variable and a third variable, determine flight plan data for the first, second and third variables, generate display data for the vertical situation display, the display data including the scale of the first second and third variables and a vector corresponding to the flight plan data of the first variable and second variable scaled to the first scale and the second scale, wherein the scale of the third variable is non-linear and varies based upon the flight plan data corresponding to the third variable relative to the vector, and output the generated display data to the vertical situation display for display on the vertical situation display.

Abstract: A nanozeolite modified green concrete contains alkali-activated natural pozzolan. Natural pozzolan is a green and sustainable material, potentially useful in green concrete, e.g., to curb greenhouse gas emissions associated with ordinary Portland cement production. Nanozeolite (NZ) is present as an additive to the green concrete, e.g., at 3 to 5 wt. %, of natural pozzolan to improve strength development and microstructural properties, resulting in superior strength and denser microstructure compared to a green concrete without nanozeolite.

Abstract: A method for sending environmental data to a vehicle in transit is disclosed. The method is performed by a ground system. The method includes receiving new environmental data from a plurality of environmental data providers. The method also includes synthesizing an update template that identifies recommended portions of relevant data that are available to be uploaded for at least one of a plurality of environmental data services. The method also includes sending the update template to the vehicle using a low-bandwidth connection, wherein the update template is sent by the ground system without first receiving a request for the update template. The method also includes receiving, from the vehicle, a request for the recommended portions of relevant data. The method also includes sending the recommended portions of relevant data to the vehicle in an update package using a high-bandwidth connection.

Abstract: A structural, load-bearing panel useful in constructing multistory buildings may have a panel height, panel width, and panel thickness, and may include a first layer comprising at least 75 wt. % of concrete, relative to a total weight of the first layer; an insulation layer comprising flexible polymer, the insulation layer having a thickness of at least 5 cm; and a second layer comprising at least 75 wt. % concrete, wherein the insulation layer is sandwiched between the first and second layers, and wherein the panel is suitable to be set in any of a planar, curved, and polyhedral cross-sectional shape. Set panels are not flexible, though the flexibility of the insulation layer, particularly of a polyethylene foam, may allow the panel to have a curved, or polyhedral cross-section while still serving as a structural support.

Abstract: An offline to online booking of a street-hailed vehicle by a passenger includes scanning a quick response (QR) code or a near-field communication (NFC) sticker associated with the street-hailed vehicle. Based on the scanning, QR or NFC information is retrieved from the QR code or the NFC sticker, respectively. The QR or NFC information is further processed to determine an availability of the street-hailed vehicle for allocation to the passenger. The street-hailed vehicle is further allocated to the passenger based on successful conversion of the offline to online booking of the street-hailed vehicle. A driver of the street-hailed vehicle transports the passenger from a current location to a destination location based on the allocation.

Abstract: A method for sending environmental data to a vehicle in transit is disclosed. The method is performed by a ground system. The method includes receiving new environmental data from a plurality of environmental data providers. The method also includes synthesizing an update template that identifies recommended portions of relevant data that are available to be uploaded for at least one of a plurality of environmental data services. The method also includes sending the update template to the vehicle using a low-bandwidth connection, wherein the update template is sent by the ground system without first receiving a request for the update template. The method also includes receiving, from the vehicle, a request for the recommended portions of relevant data. The method also includes sending the recommended portions of relevant data to the vehicle in an update package using a high-bandwidth connection.

Abstract: A method and system for time-based viewing to coordinate airport collaborative decision making (A-CDM) events between a pilot and ground personnel on a cockpit display of an aircraft of generating a time scale with a list of A-CDM events of the aircraft during inbound, turnaround and outbound flight operations to an airport based sensor data contributed by aircraft systems and data of A-CDM event related to airport operations to generate a current time moving window in the time scale for identifying A-CDM events; generating a graphic user interface using the sensor data for positioning the current time moving window on the time scale; and collaboratively communicating with ground personnel decisions based on an aircraft state and a current A-CDM event identified by the positioning of the current time moving window in the time scale to expedite completion of a particular A-CDM event.

Abstract: Alkali activated concrete compositions containing natural pozzolan, ground granulated blast furnace slag, alkali activators such as an alkali hydroxide and an alkali silicate, and optionally fine and coarse aggregates. Alkali activated concretes made therefrom and methods of making such concretes are also specified. The inclusion of ground granulated blast furnace slag provides significantly superior mechanical strength (e.g. compressive strength) to the alkali activated concretes within 12-24 hours of curing at 30-60° C.