Abstract: An electronic device includes an outer casing and an antenna structure located in the outer casing. The antenna structure includes a circuit board and a first radiation structure including a first radiation ring and a plurality of stubs. The outer casing includes a metal ring housing extending in an axial direction, which is parallel to the axial direction of the first radiation ring. The plurality of stubs, including one feed stub and at least two first grounding stubs, are distributed in a circumferential direction of the first radiation ring and are connected between the first radiation ring and the circuit board. Two adjacent stubs and a first section of the first radiation ring that is located between the two adjacent stubs form an antenna substructure. The feed stub is configured to feed the first radiation ring that is configured to generate a first resonance.

Abstract: An electronic device has a radiator including a first end, a second end, a ground point, a first connection point, and a second connection point. The ground point is disposed in a central area of the radiator. A length of the radiator is greater than three-quarters of a first wavelength which is a medium wavelength of a first resonance generated by the radiator. A first inductor is electrically connected between the first connection point and the ground plane, and a second inductor is electrically connected between the second connection point and the ground plane, inductance values of the inductors are less than or equal to a first threshold. A distance between the first connection point and the first end is less than a quarter of the first wavelength, and the second connection point is located between the first connection point and the second end.

Abstract: A power management circuit for a computer system is disclosed. The power management circuit includes a power storage circuit, a first power converter circuit, and a second power converter circuit. The first power converter circuit sources a current to a regulated power supply node via a first inductor under average load conditions using a voltage level of an input power supply node. During high-load transient conditions, the second power converter circuit provides additional current to the regulated power supply node via a second inductor using a voltage generated by the power storage circuit.

Abstract: The present disclosure belongs to the field of biotechnology, and specifically relates to a preparation method for an adenovirus p53 (Ad-p53)-loaded dendritic cell (DC) vaccine. The present disclosure includes steps of peripheral blood collection and peripheral blood mononuclear cell (PBMC) separation, PBMC sorting, DC activation, Ad-P53-transfected DC and DC vaccine preparation. P53 can be expressed on a surface of DC as a tumor-associated antigen (TAA) through DC purification, specific multiplicity of infection (MOI) and infection modes, and the Ad-P53-transfected DC has obvious antigen presentation effect, which can be used as a vaccine to activate T cells to kill tumors.

Abstract: An electronic device includes a radiator, a feed point, and a ground point. The plurality of radiators include a first radiator, a second radiator, and a third radiator. A first end of the first radiator and a first end of the second radiator are opposite to each other, and form a first gap. A second end of the first radiator and a first end of the third radiator are opposite to each other, and form a second gap. The feed point and the ground point are disposed on the first radiator. The ground point is disposed in a central region of the plurality of radiators or the first radiator, and the feed point is disposed between the central region and the first end of the first radiator. Gaps are formed between a plurality of radiators, so that a broadband antenna can be implemented.

Abstract: A naphtha-to-aromatics fluidized bed device and a method thereof are provided. The device at least includes: a light hydrocarbon aromatization reactor; and a naphtha-to-aromatics reactor; the high-temperature regenerated catalyst is first directed into the light hydrocarbon aromatization reactor, and after cooling, subsequently introduced into the naphtha-to-aromatics reactor. The method includes using the above-mentioned device and a metal molecular sieve bifunctional catalyst. Under the action of the catalyst in the naphtha to aromatics reactor, naphtha is converted into a product gas containing aromatics, light alkanes, and other components. Light alkanes and the like separated from the product gas are further converted into aromatics and other components in the light hydrocarbon aromatization reactor. The method enables efficient and highly selective conversion of linear and branched aliphatic hydrocarbons into aromatics, with para-xylene content in the xylene mixture exceeding >50 wt %.

Abstract: A fluidized bed device for coupling naphtha and methanol to prepare aromatics and co-produce olefins and its application method are provided. By using the device, under the action of a catalyst, naphtha reacts with methanol to generate product gas containing aromatics and light olefins as main components. The method can efficiently and selectively convert linear and branched aliphatic hydrocarbons into aromatics, while also increasing p-xylene production through aromatic methylation reactions, with the p-xylene content in the xylene mixture exceeding 75 wt %. The fluidized bed reactor achieves increased p-xylene production by controlling the progression of cascade reactions (naphtha?benzene/toluene?p-xylene). Additionally, it utilizes the methylation reaction of benzene/toluene with methanol to provide in-situ heat for the coupled naphtha-methanol aromatization process, thereby achieving autothermal balance.

Abstract: A phage and its use in compensating soil nitrogen fixation: Klebsiella pneumoniae phage ?YSZKA, wherein the method has solved some problems of conventional azotobacters, such as high cost, interspecific competition and limited range of application. Through phage transplantation, the efficiency of microbial nitrogen fixation in soil can be improved, and thus, more nitrogen sources may be provided for the nitrogen cycle and plant growth in ecosystems. Also, a new solution is provided for the nitrogen sequestration process of soil in saline-alkali lands, tea plantations and pesticide-polluted sites in China.

Abstract: A naphtha to aromatics device and method are provided. The naphtha to aromatics device includes a naphtha to aromatics reactor, a regenerator, and a light hydrocarbon aromatization reactor. In the method for producing aromatics from naphtha, a metal molecular sieve bifunctional catalyst is employed. Under the action of the catalyst in the naphtha to aromatics reactor, naphtha is converted into a product gas containing aromatics, light alkanes, and other components. Light alkanes and C3, C4, C5 hydrocarbons separated from the product gas are further converted into aromatics and other components in the light hydrocarbon aromatization reactor.

Abstract: A circulating fluidized bed reaction regeneration device and its application method are provided. The device includes a fluidized bed reactor, a fluidized bed regenerator and a riser reactor. The fluidized bed reactor is used for introducing a naphtha feedstock and a methanol feedstock, where the naphtha feedstock is brought into contact with a catalyst from the riser reactor, so as to perform a reaction to generate a BTX-containing product gas flow and a spent catalyst, and the methanol feedstock undergoes a methylation reaction with benzene and toluene in the BTX-containing product gas flow to generate p-xylene; the product gas flow is subjected to gas-solid separation, the separated product gas is conveyed to downstream sections, unconverted naphtha is returned as a feedstock to the fluidized bed reactor, part of light alkanes is returned as a feedstock to the riser reactor, and the spent catalyst is introduced into the fluidized bed regenerator.

Abstract: A phage composition and an use thereof in strengthening soil carbon fixation, said phage composition including three phages, namely, a polyvalent phage ?YSZKP that attacks Klebsiella pneumoniae and Pseudomonas aeruginosa; a Bacillus cereus phage ?YSZBA1; and a Bacillus cereus phage ?YSZBA2. In the present invention, the phage composition is injected into the target soil, and an approach of strengthening soil carbon fixation by means of cooperation with the host bacteria through injection of AMGs from the phage is employed; at the same time, the phage has a function of regulating the soil microbial communities from bottom to top; a network of symbiosis with indigenous bacteria is further optimized, and the soil carbon fixation potential is improved. This technique is an environmental improvement technique that achieves a good carbon fixation effect, has a low price and is environment-friendly.

Abstract: A power management circuit for a computer system is disclosed. The power management circuit includes a power storage circuit, a first power converter circuit, and a second power converter circuit. The first power converter circuit sources a current to a regulated power supply node via a first inductor under average load conditions using a voltage level of an input power supply node. During high-load transient conditions, the second power converter circuit provides additional current to the regulated power supply node via a second inductor using a voltage generated by the power storage circuit.

Abstract: Embodiments of this application provide an electronic device, in which a heat sink in the electronic device is multiplexed as a heat dissipation component and a radiator of an antenna. The heat sink provided by the embodiments of this application can be used as a heat dissipation component to distribute heat evenly, such as to cool down an overheated electronic element. In addition, the heat sink can be used as a radiator of an antenna to form an antenna unit with a feed unit and generate radiation to the outside. The heat sink in a first region can be used as a main radiator of the antenna unit to meet the demand for the number of antennas in a 5G wireless communication system, and can also be applied to other communication systems.

Abstract: A liquid crystal optical device and an electronic product are provided. The liquid crystal optical device provided by this invention includes a first substrate, a first electrode layer, a liquid crystal layer, a second electrode layer, and a second substrate sequentially stacked. The second electrode layer comprises an insulating layer, a first electrode structure, and a second electrode structure. One of the first electrode structure and the second electrode structure is located on the side of the insulating layer facing the liquid crystal layer, while the other is located on the side of the insulating layer away from the liquid crystal layer. The projection of the second electrode structure onto the plane of the first electrode structure covers the gaps in the first electrode structure. This invention effectively eliminates the diffraction phenomenon in liquid crystal optical devices.

Abstract: A coke control reactor, a device for preparing low-carbon olefins from an oxygen-containing compound, and a use thereof are provided. The coke control reactor includes a riser reactor and a bed reactor; the bed reactor includes a bed reactor shell, and the bed reactor shell encloses a reaction zone I, a transition zone, and a gas-solid separation zone I from bottom to top; a bed reactor distributor is arranged in the reaction zone I; a coke controlled catalyst delivery pipe is arranged outside the reaction zone I; an upper section of the riser reactor penetrates through a bottom of the bed reactor and is axially inserted in the bed reactor; and an outlet end of the riser reactor is located in the transition zone. The coke control reactor can control the conversion and generation of coke species in a catalyst.

Abstract: The application discloses a device and method for preparing aromatic hydrocarbons from naphtha, and the device comprises a fluidized bed reactor and a riser reactor; the fluidized bed reactor is used for introducing a naphtha raw material to make contact with a catalyst from the riser reactor and react to generate a BTX-containing product gas stream and a spent catalyst, the product gas stream is subjected to gas-solid separation, the product gas stream after separation is sent to a downstream working section, and unconverted naphtha after separation returns to the fluidized bed reactor as a raw material; and a part of low-carbon alkanes after separation return to the riser reactor as raw materials and are further converted into aromatic hydrocarbons and other components.

Abstract: The present application discloses a device and method for preparing aromatic hydrocarbons by coupling naphtha and methanol. By adopting the device, under an action of a catalyst, the naphtha and the methanol react to generate product gas with aromatic hydrocarbons and a low-carbon olefin as main components. By the method of the application, linear-chain and branched-chain aliphatic hydrocarbons can be efficiently converted into aromatic hydrocarbons in a highly selective mode, a yield of p-xylene is also increased through a methylation reaction of aromatic hydrocarbons, and a content of p-xylene in a xylene mixture is greater than 75 wt %.

Abstract: A method for screening functional nucleic acid aptamers targeting GPCR proteins by combining cell sorting with functional sorting and an and application thereof, wherein the native conformation of target proteins is maintained through cell sorting for target proteins, and the obtained nucleic acid aptamers have better in vivo specificity and targeting property than the nucleic acid aptamers obtained by conventional protein SELEX to construct Cell-SELEX of model cells. Compared with the conventional Cell-SELEX technology with unclear targets, the present disclosure has a stronger pertinence. The present disclosure can directly obtain functional aptamers that can affect the signaling pathway of target proteins and the cell phenotypes only by performing one round of functional sorting in cells after screening out a series of target aptamers at one time. It has the advantages of strong pertinence, high affinity, high cost performance, low manpower cost and broad-spectrum universality, etc.

Abstract: A fluidized bed regenerator, a device for preparing low-carbon olefins, and a use thereof are provided. The fluidized bed regenerator includes a second activation zone, a first activation zone, and a gas-solid separation zone from bottom to top; the second activation zone axially communicates with the gas-solid separation zone; the first activation zone is arranged on a periphery of a junction between the second activation zone and the gas-solid separation zone; the first activation zone is an annular cavity; n baffles are radially arranged in the first activation zone, and the n baffles divide the first activation zone into n first activation zone subzones; and a catalyst circulation hole is formed in each of n?1 of the baffles such that a catalyst entering the first activation zone flows in an annular direction.

Abstract: A regeneration device, a device for preparing low-carbon olefins, and a use thereof are provided. The regeneration device includes a first regenerator and a second regenerator; a first activation zone of the first regenerator is connected to the second regenerator through a pipeline, such that a catalyst in the first activation zone is able to be delivered to the second regenerator; and the second regenerator is connected to a gas-solid separation zone of the first regenerator through a pipeline, such that a catalyst in the second regenerator is able to be delivered to the gas-solid separation zone. The regeneration device can adjust the coke content, coke content distribution, and coke species in a dimethyl ether/methanol to olefins (DMTO) catalyst to control an operation window of the DMTO catalyst, which improves the selectivity for low-carbon olefins and the atomic economy of a methanol-to-olefins (MTO) technology.