Abstract: Methods disclosed herein include using additive manufacturing to create a joint between a first metallic material and a second metallic material that is different from the first metallic material, wherein the porosity of the joint is less than about 0.1 percent by volume measured according to ASTM B-962. The additive manufacturing can be performed such that no intermetallic brittle phase forms between the first metallic material and the second metallic material.

Abstract: The present disclosure relates to metal/polymer hybrid materials, and methods for fabricating such, with strong bonding between the metals and polymers and improved properties. The articles of manufacture disclosed herein can include a metallic material and a polymer material bonded to the metallic material via a cocontinuous interface that provides for strong bonding between the metallic material and the polymer material.

Abstract: A method for repairing defects on a structure is disclosed herein. The method comprises use of an additive manufacturing head to inject a flowable filler material into the defect. In certain embodiments, the additive manufacturing head can be a laser metal deposition (LMD) head comprising a powder nozzle and a laser. The structure can be, e.g., a pipeline or a pressure vessel used in petroleum, petrochemical, or natural gas applications.

Abstract: The present disclosure relates to reactive manufacturing methods to disperse fine second phase particles within a matrix, and compositions made thereof. Specifically, the reactive manufacturing methods are based on in-situ reaction synthesis during an additive manufacturing (AM) process to fabricate composite components for structural and/or functional applications. The composite components can be particularly useful in oil and gas applications.

Abstract: Techniques are described herein for leveraging an online semantic processor to generate a finite state machine to be delivered to and implemented on a resource-constrained device. In various implementations, a user request may be received by a personal assistant module. Data indicative of the user request may be uploaded, e.g., by the personal assistant module, to an online semantic processor. Data may be received, e.g., by the personal assistant module, from the online semantic processor. The received data may represent a state machine having a plurality of candidate states of the personal assistant module. Each candidate state may be potentially responsive to the request. Resources local to the resource-constrained device may be analyzed to ascertain signal(s) unavailable to the online semantic processor. The personal assistant module may then transition to a given state of the plurality of candidate states. The given state may be selected based on the signal(s).

Abstract: A device for recording user operation data for a remotely controlled vehicle includes a memory off-board the remotely controlled vehicle and a housing receiving the memory. The memory is configured to record user operation data comprising outgoing operation commands that affect operation of the remotely controlled vehicle. The outgoing operation commands are received via a remote controller of the remotely controlled vehicle and transmitted to the remotely controlled vehicle. The housing is removable from the remote controller and more resistant to destruction than the rest of the remote controller.

Abstract: An out-of-synchronization processing method implemented by a first unmanned aerial vehicle (UAV) includes determining whether the first UAV is out of synchronization, obtaining base positioning information of a base station broadcasted by a second UAV in response to confirming that the first UAV is out of synchronization, and determining UAV positioning information of the first UAV based on the base positioning information. The first UAV and the second UAV belong to a UAV system including the base station and at least two UAVs.

Abstract: The present disclosure relates to a porous liquid or a porous liquid enzyme system that includes a high surface area solid and a liquid film substantially covering the high surface area solid. The porous liquid or porous liquid enzyme may be contacted with a fluid that is immiscible with the liquid film such that a liquid-fluid interface is formed. The liquid film may facilitate mass transfer of a substance or substrate across the liquid-fluid interface. The present disclosure also provides methods of performing liquid-based extractions and enzymatic reactions utilizing the porous liquid or porous liquid enzyme of the present disclosure. The present disclosure also provides methods for selecting the components of the porous liquid or a porous liquid enzyme system and methods of self-replenishing the used liquid coating.

Abstract: The present disclosure relates to a porous liquid or a porous liquid enzyme that includes a high surface area solid and a liquid film substantially covering the high surface area solid. The porous liquid or porous liquid enzyme may be contacted with a fluid that is immiscible with the liquid film such that a liquid-fluid interface is formed. The liquid film may facilitate mass transfer of a substance or substrate across the liquid-fluid interface. The present disclosure also provides methods of performing liquid-based extractions and enzymatic reactions utilizing the porous liquid or porous liquid enzyme of the present disclosure.

Abstract: A processing method for an aircraft includes controlling an imaging device of the aircraft to capture an image. The processing method also includes associating and saving the image and flight control information of a flight control module of the aircraft relating to a time when the imaging device captures the image.

Abstract: Systems and methods for determining an order accepting mode for a target service provider are provided. A method includes receiving a request for determining an order accepting mode for the target service provider. The method also includes obtaining an order accepting evaluation parameter with respect to the target service provider in response to the request. The method also includes determining an order accepting mode for the target service providers based on the order accepting evaluation parameter. The order accepting mode includes at least one of an order designating mode, an order striving mode, or an order quick-accepting mode.

Abstract: An out-of-synchronization processing method implemented in an intermediate communication apparatus includes obtaining synchronization information for synchronizing with a downstream communication apparatus, and performing a search for an upstream communication apparatus and a communication with the downstream communication apparatus. A parameter is adjusted according to the synchronization information during the communication with the downstream communication apparatus.

Abstract: The present disclosure provides a channel switching method. The channel switching method includes obtaining interference power of multiple channels in a communication frequency band; obtaining interference power of a current channel; when the interference power of the current channel exceeds a preset threshold, selecting a target channel according to the interference power of the multiple channels; and switching to the target channel for communication.

Abstract: A communication mode control method is provided for a communication device. The method includes obtaining a channel parameter of at least one communication channel between two communication parties; according to the channel parameter of the at least one communication channel, determining a first measurement parameter of communication quality for communication between the communication parties using a time division duplex mode and determining a second measurement parameter of communication quality for communication between the communication parties using a frequency division duplex mode; and according to the first measurement parameter and the second measurement parameter, determining whether the communication parties communicate using the time division duplex mode or using the frequency division duplex mode.

Abstract: A wireless-device frequency-band authentication method for a master device communicating with a slave device includes when using a first frequency band to transmit a signal to the slave device, using, by the master device, a receiving channel to perform an evaluation on a second frequency band to be authenticated; determining, by the master device, whether the evaluation conforms to a preset standard; and when it is determined that the evaluation conforms to the preset standard, notifying, by the master device, the slave device of using the second frequency band to communicate with the master device.

Abstract: Embodiments are provided for an efficient antenna design and operation method to adjust or add frequency bands at mobile devices using the available limited antenna size. The embodiments include electrically coupling to the antenna elements at a mobile or radio device a tuning stub or element through a printed circuit board (PCB) or a metal chassis. The PCB is placed between the antenna elements and the tuning stub and is connected to the antenna elements. The tuning stub, e.g., at a corner of the PCB, is connected or disconnected via a switch from the PCB, and hence the antenna elements, to shift the radiation of the antenna at different frequencies and also provide an additional mode of radiation. The tuning stub can also be switched to vary the radiation pattern of the antenna.

Abstract: Welding compositions for high manganese steel base metals, the composition comprising: carbon in a range of about 0.4 wt % to about 0.8 wt %; manganese in a range of about 18 wt % to about 24 wt %; chromium in an amount of about 6 wt %; molybdenum in an amount of about <4 wt %; nickel in an amount of about <5 wt %; silicon in an amount of about 0.4 wt % to about 1.0 wt %; sulfur in an amount of about <200 ppm; phosphorus in an amount of about <200 ppm; and the balance comprising iron.

Abstract: A metal cored wire for submerged arc welding, the wire comprising a steel sheath with a core comprising powders of: carbon in a range of about 0.3 wt. % to about 1.2 wt. %; silicon in a range of about 0.1 wt. % to about 3.0 wt. %; manganese in a range of about 9.0 wt. % to about 30 wt. %; chromium in an amount less than about 8 wt. %; nickel in an amount less than about 6 wt. %; molybdenum in an amount less than about 6 wt. %; tungsten in an amount less than about 5 wt. %; copper in an amount less than about 4 wt. %; niobium in an amount less than about 2 wt. %; vanadium in an amount less than about 2 wt. %; titanium in an amount less than about 2 wt. %; nitrogen in an amount less than about 0.4 wt. %; boron in an amount less than about 1 wt. %; at least one of: (i) sulfur in an amount less than about 0.3 wt. %; (ii) phosphorous in an amount less than about 0.03 wt. %; or a combination thereof; and the balance with iron.

Abstract: Systems and methods for synchronizing communications between a movable object and first and second control devices are provided. In some exemplary implementations, the systems and methods may synchronize the first control device with the movable object, synchronize the second control device with the first control device, and synchronize the second control device with the movable object based on the synchronization between the second control device and the first control device.

Abstract: Techniques are described herein for leveraging an online semantic processor to generate a finite state machine to be delivered to and implemented on a resource-constrained device. In various implementations, a user request may be received by a personal assistant module. Data indicative of the user request may be uploaded, e.g., by the personal assistant module, to an online semantic processor. Data may be received, e.g., by the personal assistant module, from the online semantic processor. The received data may represent a state machine having a plurality of candidate states of the personal assistant module. Each candidate state may be potentially responsive to the request. Resources local to the resource-constrained device may be analyzed to ascertain signal(s) unavailable to the online semantic processor. The personal assistant module may then transition to a given state of the plurality of candidate states. The given state may be selected based on the signal(s).