Abstract: An example antenna system includes a first antenna including a strip-shaped antenna radiator. The antenna radiator has a first end and a second end. At least one of a first radiator section in which the first end is located or a second radiator section in which the second end is located is used as a radiator of a second antenna. One of two first filters is connected between the first antenna radio frequency source and an antenna feed point, and the other first filter is connected between a ground and an antenna ground point. One of two second filters is connected between the second antenna radio frequency source and at least one of the first radiator section or the second radiator section, and the other second filter is connected between the ground and at least one of the first radiator section or the second radiator section.

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 invention relates to the technical field of mudslide prevention and control engineering, and provides a bottom hole type mudslide blocking dam and a dam height calculation method. According to the present invention, a climbing height of the mudslide impacting a bottom hole type mudslide blocking dam can be accurately calculated, so as to guide the height design of a dam body of the bottom hole type mudslide blocking dam, thereby guaranteeing the working safety and the protection capacity of the bottom hole type mudslide blocking dam, and saving the manufacturing cost of the bottom hole type mudslide blocking dam.

Abstract: Embodiments of this application provide a communication method, apparatus, and system. In the method, after a first remote radio unit (RRU) determines that a link between the first RRU and a baseband unit (BBU) is in an abnormal state, the first RRU sends information about the first RRU and/or information about an optical module connected to the first RRU to at least one second RRU by using a power line communication (PLC) module in the first RRU. The first RRU is connected to the at least one second RRU by using a power line, and a PLC module is also disposed in the at least one second RRU.

Abstract: A multi-band dual-polarized antenna includes a first radiator and a second radiator, each having a rotationally symmetric structure. The first radiator has two feeding ports that are 90° rotationally symmetric with respect to a geometric center of the first radiator. The second radiator is annular, the first radiator and the second radiator are coplanar, the first radiator is disposed in the second radiator, and an annular gap is provided between the first radiator and the second radiator.

Abstract: A terminal includes a terminal body part and an electronic accessory part. A WI-FI antenna apparatus is disposed on the terminal body part. The WI-FI antenna apparatus has a closed slot antenna. The closed slot antenna has an antenna slot that includes a main straight slot and a first slot and a second slot that are separately bent with respect to two ends of the main straight slot and extend to a same side of the main straight slot. The first slot and the second slot are perpendicular to the main straight slot, and the electronic accessory part is located on a side surface of the main straight slot.

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: A system for determining the viability of an embryo comprises an imaging device, an excitation device configured to direct an excitation energy at an embryo, a controller communicatively connected to the imaging device and the excitation device, configured to drive the excitation device and collect images from the imaging device at an imaging frequency, a processor performing steps comprising acquiring a set of images from the imaging device, performing a Fourier Transformation to generate a set of phasor coordinates, computing a D-trajectory, computing a set of values of additional parameters, comparing the set of values to a set of stored values related to embryos of known viability, and calculating a viability index factor of the embryo from the set of values and the set of stored values. Methods of calculating embryo viability and determining one or more properties of a tissue are also described.

Abstract: An electric controlled bi-directional bending actuator with deformability and stiffness tunable capacity is disclosed. The electric controlled bi-directional bending actuator with deformability and stiffness tunable capacity comprises three kinds of functional layers that are electro-deformable layers, electro-variable stiffness layers and flexible electrodes. From up to bottom, they are the first flexible electrodes layer, the first electro-deformable layer, the second flexible electrodes layer, the electro-variable stiffness layer, the third flexible electrode layer, the second electro-deformable layer and the fourth flexible electrode layer. The adjacent layers are glued together. The electro-deformable layer is made from dielectric elastomers. The electro-variable stiffness layer is made from electro-rheological materials, including electro-rheological fluids, electro-rheological gels or electro-rheological elastomers.

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 stylus pen includes a pen barrel extending along a longitudinal axis, and the pen barrel includes a main body, a pen nib part disposed at one end of the main body, and a pen end part disposed at another end of the main body and that corresponds to the pen nib part; and an antenna disposed on the main body of the pen barrel, where at least one part of the antenna is located outside the pen barrel and is close to the pen nib part and/or the pen end part, and the antenna comprises a loop antenna or a planar inverted-F antenna close to the pen end part.

Abstract: Disclosed in the present invention are ABS rubber powder with a low impurity content, a preparation method therefor, and an ABS resin. The ABS rubber powder is treated by using the following steps: washing the ABS rubber powder with a washing solution I, and monitoring the content of soluble organic carbon in the ABS rubber powder until the content of soluble organic carbon in the ABS rubber powder is less than or equal to 9000 ppm, so as to obtain the ABS rubber powder with the low impurity content. In the present invention, by controlling the content of soluble organic carbon or the contents of soluble organic carbon and iron ions in the ABS powder, the ABS resin with a low yellow index of less than or equal to 18 is obtained.

Abstract: An electronic device comprising an antenna structure including a signal reference ground, a first antenna, and a second antenna. The first antenna includes a first radiator and a first feeding line, where the first radiator has a first feeding point, is fed from the first feeding point through the first feeding line, and is electrically coupled to the signal reference ground. The second antenna includes a second radiator and a second feeding line, where the second radiator has a second feeding point and is fed from the second feeding point through the second feeding line, and the second feeding line includes a signal transmission line and a signal reference ground line that is electrically coupled to the first radiator.

Abstract: Methods and compositions are provided for improving metal dusting corrosion, abrasion resistance and/or erosion resistance for various materials, preferably for applications relating to high-temperature reactors, including dense fluidized bed reactor components. In particular, cermets comprising (a) at least one ceramic phase selected from the group consisting of metal carbides, metal nitrides, metal borides, metal oxides, metal carbonitrides, and mixtures of thereof and (b) at least one metal alloy binder phase are provided. Ceramic phase materials include chromium carbide (Cr23C6). Metal alloy binder phase materials include ?-NiAl intermetallic alloys and Ni3Sn2 intermetallic alloys, as well as alloys that contain ?-Cr and/or ??-Ni3Al hard phases. Preferably, bimetallic materials are provided when the cermet compositions are applied using a laser, e.g.

Abstract: A method for regulating an unmanned aerial vehicle (UAV) includes receiving a UAV identifier and one or more types of contextual information broadcasted by the UAV. The UAV identifier uniquely identifies the UAV from other UAVs. The one or more types of contextual information includes at least geographical information of the UAV. The method further includes authenticating, via an authentication device, an identity of the UAV based on the UAV identifier to determine whether the UAV is authorized for operation, and transmitting a signal to a remote device in response to determining whether the UAV is authorized for operation.

Abstract: A system for determining the viability of an embryo comprises an imaging device, an excitation device configured to direct an excitation energy at an embryo, a controller communicatively connected to the imaging device and the excitation device, configured to drive the excitation device and collect images from the imaging device at an imaging frequency, a processor performing steps comprising acquiring a set of images from the imaging device, performing a Fourier Transformation to generate a set of phasor coordinates, computing a D-trajectory, computing a set of values of additional parameters, comparing the set of values to a set of stored values related to embryos of known viability, and calculating a viability index factor of the embryo from the set of values and the set of stored values. Methods of calculating embryo viability and determining one or more properties of a tissue are also described.

Abstract: Systems and methods for UAV safety are provided. An authentication system may be used to confirm UAV and/or user identity and provide secured communications between users and UAVs. The UAVs may operate in accordance with a set of flight regulations. The set of flight regulations may be associated with a geo-fencing device in the vicinity of the UAV.

Abstract: A system for controlling an unmanned aerial vehicle (UAV) includes smart glasses configured to establish a first channel directly with the UAV, receive first person view (FPV) image data directly from the UAV through the first channel, and display the FPV image data, a remote control configured to establish a second channel directly with the UAV and send a first flight control instruction corresponding to the FPV image data directly to the UAV through the second channel, and establish a fourth channel directly with the mobile terminal, and a mobile terminal configured to display the FPV image data received from the UAV and forwarded by the remote control.

Abstract: Systems and methods are provided for using size-reversing materials in vessels where direct heating is used to at least partially provide heat for reforming reactions under cyclic reforming conditions. An example of a size-reversing material is the combination of NiO and Al2O3. It has been discovered that size-reversing materials can undergo a phase transition that can assist with re-dispersion of metal at elevated temperatures. This can assist with maintaining catalytic activity for reforming over longer time periods in the presence of cyclic reforming conditions.

Abstract: The invention discloses a caliper repairing clamp, which relates to the technical field of calipers and comprises a machine body, wherein a polishing disc is arranged inside the machine body, a protective cover is arranged on the outer surface of the polishing disc, a moving table is arranged below the machine body, a polishing table is arranged above the moving table, a fixed table is fixedly connected to the upper surface of the polishing table, a first bearing is fixedly embedded inside the machine body, a rotating handle is arranged below the moving table, and a first threaded rod is fixedly connected to the upper surface of the rotating handle.