Abstract: A fan duct nozzle of an aviation turbofan engine. A notch is formed in a rear edge of an engine nacelle on an outer side of an engine pylon, and a flow guide curved surface matching the notch in shape is arranged on a profile of the fan duct nozzle. The notch is unilaterally formed in the outer side of the engine pylon, and a transition section between the notch and the rear edge of the engine nacelle includes two transition rounded corners. The present disclosure adopts a unilateral notch-shaped nozzle in the external duct of the turbofan engine, uses high-speed flowing of venting by an engine fan to provide flowing protection for an airfoil, improves a lift coefficient, and reduces negative impact on the airfoil exerted by the engine nacelle at a high incidence, thus lowering resistance, lowering a weight of the nacelle, and improving a lift-drag ratio.

Abstract: A membrane assembly includes a membrane film, and a plurality of tensile support members. The membrane film is configured to transfer heat and moisture between a liquid and air flowing through a LAMEE. The tensile support members are connected to the membrane or a substrate connected to the membrane. And, the tensile support members are in spaced relation to 5 one another and oriented perpendicular to a direction of flow of liquid through the LAMEE.

Abstract: Disclosed are a polymer-modified magnetic nanomaterial (polymer-modified MNM), and a preparation method and use thereof. Provided is the polymer-modified magnetic nanomaterial, including the following structure: a polymer is attached to or coated on a surface of a magnetic nanomaterial (MNM) to form the polymer-modified MNM that is positively charged, wherein the polymer is a cationic polymer, the MNM has a core-shell structure, a core is a magnetic nanoparticle (MNP), and a shell is a modified layer and the modified layer is attached to or coated on a surface of the MNP to form a modified layer-compounded MNP; and a mass ratio of the polymer to the MNM in the polymer-modified MNM is in a range of 1:10 to 20:1.

Abstract: A fan duct nozzle of an aviation turbofan engine. A notch is formed in a rear edge of an engine nacelle on an outer side of an engine pylon, and a flow guide curved surface matching the notch in shape is arranged on a profile of the fan duct nozzle. The notch is unilaterally formed in the outer side of the engine pylon, and a transition section between the notch and the rear edge of the engine nacelle includes two transition rounded corners. The present disclosure adopts a unilateral notch-shaped nozzle in the external duct of the turbofan engine, uses high-speed flowing of venting by an engine fan to provide flowing protection for an airfoil, improves a lift coefficient, and reduces negative impact on the airfoil exerted by the engine nacelle at a high incidence, thus lowering resistance, lowering a weight of the nacelle, and improving a lift-drag ratio.

Abstract: A dielectric filter, a duplexer, and a communications device are provided. The dielectric filter includes a dielectric body, and a wideband filtering structure and a narrowband filtering structure that are disposed in the dielectric body. The wideband filtering structure includes a groove disposed on a first surface of the dielectric body and configured to adjust a frequency position of a passband of the wideband filtering structure; and at least one first resonator including a through hole penetrating the bottom of the groove and a second surface of the dielectric body; and an open loop located on a bottom surface of the groove and is disposed around an opening of the through hole. The narrowband filtering structure includes at least one second resonator including a blind hole disposed on the second surface of the dielectric body. The first surface and the second surface of the dielectric body are disposed oppositely.

Abstract: A method for measuring multiple parameters of mixed gases based on broadband infrared light source is provided, including: filtering a broadband infrared laser, and forming a laser beam including three narrow-linewidth wavelengths; dividing the laser beam into a first sub-laser beam and a second sub-laser beam; focusing and transmitting the first sub-laser beam to a gas sample cell; focusing and transmitting the first sub-laser beam to a first reflector; reflecting and transmitting the first sub-laser beam; reflecting and transmitting the second sub-laser beam to the second beam splitter; combing the first sub-laser beam transmitted by the second beam splitter and the second sub-laser beam reflected by the second beam splitter, measuring the multiple parameters; combining and transmitting the second sub-laser beam transmitted by the second beam splitter and the first sub-laser beam reflected by the second beam splitter to a spectrometer for measuring concentrations the mixed gases.

Abstract: A self-service parcel cabinet, comprising: a main-body part (1), a sorting apparatus (2), a parking apparatus (3), and a control device. The main-body part is a hollow structure opened at the top. At least part of the hollow structure is formed by multiple self-service parcel lockers (11) surroundingly arranged. The parking apparatus is provided on top of the main-body part and comprises a drone landing pad (31). Provided on the drone landing pad is a channel allowing passing of a parcel delivered by the drone and directly facing the opening at the top.

Abstract: This application provides an example dielectric filter and an example communications device. The dielectric filter includes a dielectric block. At least two resonant through holes that are parallel to each other are provided in the dielectric block. The resonant through hole is a stepped hole. The stepped hole includes a large stepped hole and a small stepped hole that are arranged coaxially and that are in communication. The small stepped hole passes through a first surface of the dielectric block. The large stepped hole passes through a second surface of the dielectric block. A stepped surface is formed between the large stepped hole and the small stepped hole. The surfaces of the dielectric block are covered with conductor layers. The conductor layers cover the surfaces of the dielectric block and inner walls of the large stepped hole and the small stepped hole. A conductor layer of the inner wall of the large stepped hole is short-circuited with a conductor layer of the second surface.

Abstract: Provided is a diffusion furnace, including a reaction chamber extending in a first direction and a plurality of gas channels. The reaction chamber has an exhaust end; a plurality of wafers are disposed one after the other in the first direction; the surfaces of the wafers extend in a second direction; and the second direction is perpendicular to the first direction or is at an acute angle to the first direction. The plurality of gas channels pass through the side wall of the reaction chamber to introduce external reaction gas into the reaction chamber. The gas channels are distributed in the first direction from the exhaust end. The axis of each gas channel is at an acute angle to the second direction.

Abstract: This disclosure describes a dielectric filter and a communications device. In one example, the dielectric filter includes at least two dielectric resonators, a first through-hole is disposed between at least one pair of adjacent dielectric resonators, and the first through-hole is configured to cut a magnetic field between the at least one pair of adjacent dielectric resonators. In some implementations, a magnetic field distribution in the dielectric filter may be cut via the first through-hole, so that a magnetic field distribution area is reduced, and a high-order harmonic wave frequency can be increased, thereby improving a remote suppression capability and meeting the specification requirements.

Abstract: Disclosed are examples for printing a one-dimensional (1D) nanomaterial for use in stretchable electronic devices. An ink comprising a nanomaterial solution is dispersed from a pneumatic dispensing system of a printing device. The 1D nanomaterial is printed in a predefined pattern on an underlying substrate positioned on a ground electrode. A voltage is applied between the printing nozzle and the ground electrode to cause the ink to form into a cone during the printing. The substrate can be modified to increase the wettability of the substrate to enhance adhesion of the ink to the substrate.

Abstract: A dielectric filter, a duplexer, and a communications device are provided. The dielectric filter includes a dielectric body, and a wideband filtering structure and a narrowband filtering structure that are disposed in the dielectric body. The wideband filtering structure includes a groove disposed on a first surface of the dielectric body and configured to adjust a frequency position of a passband of the wideband filtering structure; and at least one first resonator including a through hole penetrating the bottom of the groove and a second surface of the dielectric body; and an open loop located on a bottom surface of the groove and is disposed around an opening of the through hole. The narrowband filtering structure includes at least one second resonator including a blind hole disposed on the second surface of the dielectric body. The first surface and the second surface of the dielectric body are disposed oppositely.

Abstract: A self-service parcel cabinet, comprising: a main-body part (1), a sorting apparatus (2), a parking apparatus (3), and a control device. The main-body part is a hollow structure opened at the top. At least part of the hollow structure is formed by multiple self-service parcel lockers (11) surroundingly arranged. The parking apparatus is provided on top of the main-body part and comprises a drone landing pad (31). Provided on the drone landing pad is a channel allowing passing of a parcel delivered by the drone and directly facing the opening at the top.

Abstract: This application provides an example dielectric filter and an example communications device. The dielectric filter includes a dielectric block. At least two resonant through holes that are parallel to each other are provided in the dielectric block. The resonant through hole is a stepped hole. The stepped hole includes a large stepped hole and a small stepped hole that are arranged coaxially and that are in communication. The small stepped hole passes through a first surface of the dielectric block. The large stepped hole passes through a second surface of the dielectric block. A stepped surface is formed between the large stepped hole and the small stepped hole. The surfaces of the dielectric block are covered with conductor layers. The conductor layers cover the surfaces of the dielectric block and inner walls of the large stepped hole and the small stepped hole. A conductor layer of the inner wall of the large stepped hole is short-circuited with a conductor layer of the second surface.

Abstract: Examples of cavity resonators, filters, and communications devices are described. One example of cavity resonator includes a cover, a resonant column, and a cavity. The cover is mounted at an opening of a top portion of the cavity. The resonant column is disposed at a bottom portion of the cavity. A value of distributed capacitance is changed with a distance between the cover and the resonant column, a value of distributed inductance is changed with a distance between the cavity and the resonant column, and a material of at least one of the cover, the resonant column, and the cavity is a plastic metal material. Therefore, when the at least one of the cover, the resonant column, or the cavity deforms, the value of the distributed capacitance or the distributed inductance is changed, to adjust a resonant frequency.

Abstract: One or more aspects of uplink transmissions for dual connectivity connection devices are disclosed. In some implementations, a method of wireless communication includes adjusting, by a user equipment (UE) while in a dual connectivity configuration, a threshold. The method also includes routing, by the UE, data to one of multiple radio link control (RLC) layers based on the adjusted threshold. The method further includes transmitting, by the UE, the data.

Abstract: This disclosure describes a dielectric filter and a communications device. In one example, the dielectric filter includes at least two dielectric resonators, a first through-hole is disposed between at least one pair of adjacent dielectric resonators, and the first through-hole is configured to cut a magnetic field between the at least one pair of adjacent dielectric resonators. In some implementations, a magnetic field distribution in the dielectric filter may be cut via the first through-hole, so that a magnetic field distribution area is reduced, and a high-order harmonic wave frequency can be increased, thereby improving a remote suppression capability and meeting the specification requirements.

Abstract: Disclosed are examples for printing a one-dimensional (1D) nanomaterial for use in stretchable electronic devices. An ink comprising a nanomaterial solution is dispersed from a pneumatic dispensing system of a printing device. The 1D nanomaterial is printed in a predefined pattern on an underlying substrate positioned on a ground electrode. A voltage is applied between the printing nozzle and the ground electrode to cause the ink to form into a cone during the printing. The substrate can be modified to increase the wettability of the substrate to enhance adhesion of the ink to the substrate.

Abstract: The present disclosure provides compositions and methods of use of cashew nut shell liquid (CNSL) and its derivatives as one of the components for decreasing the viscosity of heavy oils, extra heavy oils, high asphaltene natural bitumen, and tar sands (i.e., heavy oils). The decrease in viscosity of heavy oils increases the ability of the heavy oil mixture to be piped, transported, stored and used. The present disclosure provides compositions containing at least one of anacardic acid, cardanol and cardol, and at least one of a surfactant, a co-solvent, and water. The present disclosure provides compositions that are useful as viscosity reducing agents, heavy oil upgrading agents, wellbore cleaning agents, enhanced oil recovery agents, and cleaning agents for asphaltene-containing materials. Biofuel compositions are also provided by the present disclosure.

Abstract: Examples of cavity resonators, filters, and communications devices are described. One example of cavity resonator includes a cover, a resonant column, and a cavity. The cover is mounted at an opening of a top portion of the cavity. The resonant column is disposed at a bottom portion of the cavity. A value of distributed capacitance is changed with a distance between the cover and the resonant column, a value of distributed inductance is changed with a distance between the cavity and the resonant column, and a material of at least one of the cover, the resonant column, and the cavity is a plastic metal material. Therefore, when the at least one of the cover, the resonant column, or the cavity deforms, the value of the distributed capacitance or the distributed inductance is changed, to adjust a resonant frequency.