Abstract: A bend-resistant mini optical fiber and manufacturing method thereof, first, preparing a preform via a modified chemical vapor deposition process, and manufacturing an optical fiber via drawing at a certain temperature. The advantageous of the present invention are as following, the bend-resistant mini optical fiber is primarily formed by a core layer, a platform layer, a depression layer, an outer cladding layer and a coating layer, and the relative refractive index and radius of each of the layers is reasonably controlled; and a cutoff wavelength is effectively controlled by employing an automatic temperature and tension monitoring procedure during the drawing process, such that the cutoff wavelength and a mode field diameter are maintained in a relatively stable range, and the cutoff wavelength is adjusted upward while the mode field diameter remains stable, thus facilitating a decrease of bend loss of the optical fiber.

Abstract: The present invention provides an economizer component, including: a housing; an economizer chamber and an inter-stage flow path chamber, formed inside the housing by using a separator; a condenser connecting port and an evaporator connecting port, disposed on the economizer chamber; a first connecting port and a second connecting port, connected in a multi-stage compressor unit and disposed on the inter-stage flow path chamber; and the economizer chamber being in fluid connection with the inter-stage flow path chamber inside the housing. The economizer component provided in the present invention can reduce complexity of pipe passages of a refrigeration system in which the economizer component is applied.

Abstract: The present invention provides a refrigerating system, including: a refrigerating loop, including a compressor, a condenser, a throttling element, and an evaporator that are connected in sequence through a pipeline; and a purification loop, connected to the refrigerating loop and configured to separate a pressure maintaining gas in the refrigerating loop; wherein the refrigerating loop is connected into the purification loop from the top of the condenser or the top of the compressor. The present invention further provides a purification method for a refrigerating system, including: in a first time period, performing S1: charging, into the refrigerating system, a refrigerant that satisfies a designed refrigerating capacity; and S2: charging a pressure maintaining gas into the refrigerating system, so that pressure in the refrigerating system is higher than atmospheric pressure; and in a second time period, performing S3: separating and discharging the pressure maintaining gas in the refrigerating system.

Abstract: A diffraction interferometer includes a reference light passage, a test light passage and a pinhole substrate. The pinhole substrate includes a test pinhole and a reference pinhole. The diffracted wavefront emitted from the test pinhole is reflected by the optical component to be tested adjacent to the pinhole substrate and a converge adjacent to the reference pinhole. The diffracted wavefront includes surface shape information of an optical component to be tested that is reflected by the pinhole substrate. Interference with the diffracted wavefront is emitted by the reference pinhole and forms interference fringes. The large numerical aperture phase-shifting dual pinhole diffraction interferometer adopts a dual pinhole substrate and a illumination manner with two converged light paths to enable the separation of the reference light and test light, to prevent disturbance between the two light paths, which would induce the change of interferogram status during phase-shifting.

Abstract: The present disclosure discloses an electronic lock device and system for smart logistics. The electronic lock device for smart logistics communicates with a data control device, and includes: a communication unit for receiving a control command; a storage unit for storing data information about a container locked by the electronic lock device; and a control unit configured to: if the control command received by the communication unit is a write command, control the communication unit to receive data information from the data control device, and store the received data information in the storage unit; and if the control command received by the communication unit is a read command, read data information from the storage unit, and send the read data information to the data control device through the communication unit.

Abstract: Compositions and methods for the detection and treatment of autism and autistic spectrum disorder are provided.

Abstract: Provided is a phosphorus-containing ultrastable Y-type rare earth (RE) molecular sieve and the preparation method thereof. The method is: based on NaY molecular sieve as a raw material, obtaining “one-exchange one-roast” RE-Na Y-type molecular sieve through the steps of exchanging with RE, pre-exchanging with dispersing, and the first calcination; and then performing ammonium salt exchange, phosphorus modification, and the second calcination on the “one-exchange one-roast” RE-Na Y-type molecular sieve, wherein the sequence of the RE exchange and the pre-exchange with dispersing is unlimited, and the sequence of the ammonium salt exchange and the phosphorus modification is unlimited as well. The obtained molecular sieve contains RE oxide 1-20 wt %, phosphorus 0.1-5 wt %, and sodium oxide no more than 1.2 wt %, and has a crystallization degree of 51-69% and a lattice parameter of 2.449-2.469 nm.

Abstract: The present invention provides a catalytic cracking catalyst for heavy oil and preparation methods thereof. The catalyst comprises 2 to 50% by weight of a phosphorus-containing ultrastable rare earth Y-type molecular sieve, 0.5 to 30% by weight of one or more other molecular sieves, 0.5 to 70% by weight of clay, 1.0 to 65% by weight of high-temperature-resistant inorganic oxides, and 0.01 to 12.5% by weight of a rare earth oxide. The phosphorus-containing ultra-stable rare earth Y-type molecular sieve uses a NaY molecular sieve as a raw material.

Abstract: Compositions and methods for efficiently producing and delivering double stranded RNA (dsRNA) are provided. Vector constructs useful for in vitro and in vivo expression of dsRNA are described. Also described are cell expression systems for efficient and cost-effective production of dsRNA in living cells and methods and compositions for providing the expressed dsRNA to target organisms. The described compositions and methods can be used to produce RNA molecules for screening or other uses, and to amplify RNA sequences for analysis.

Abstract: A fork assembly (4) for storage/retrieval machine of high convey efficiency comprises: a rotating table (41); an extension arm (43) provided on the rotating table (41) and capable of conducting stretching motion; a driver unit (42) configured for driving the extension arm (43) to conduct the stretching motion; a control system (100) configured for controlling an operation of the driver unit (42); a position sensor (46) for the breakpoint which is connected to the control system (100) and configured for determining whether the extension arm (43) performs the stretching motion up to the breakpoint (9), and the breakpoint (9) is located between a maximum distance point (10) and a minimum distance point (8) to which the extension arm (43) extends.

Abstract: The present application discloses a vehicle searching method and device, which can perform the steps of: calculating an appearance similarity distance between a first image of a target vehicle and several second images containing the searched vehicle; selecting several images from the several second images as several third images; obtaining corresponding license plate features of license plate areas in the first image and each of the third images with a preset Siamese neural network model; calculating a license plate feature similarity distance between the first image and each of the third images according to license plate feature; calculating a visual similarity distance between the first image and each of the third images according to the appearance similarity distance and the license plate feature similarity distance; obtaining a the first search result of the target vehicle by arranging the several third images in an ascending order of the visual similarity distances.

Abstract: A method for producing double-component modified molecular sieve comprises adding molecular sieve to an aqueous solution containing phosphorus to form a mixture, allowing the mixture to react at pH of 1-10, temperature of 70-200° C. and pressure of 0.2-1.2 MPa for 10-200 min, and then filtering, drying and baking the resultant to obtain phosphorus-modified molecular sieve, and then adding the phosphorus-modified molecular sieve to an aqueous solution containing silver ions, allowing the phosphorus-modified molecular sieve to react with silver ions at 0-100° C. in dark condition for 30-150 min, and then filtering, drying and baking. The obtained double-component modified molecular sieve contains 88-99 wt % molecular sieve with a ratio of silica to alumina between 15 and 60, 0.5-10 wt % phosphorus (based on oxides) and 0.01-2 wt % silver (based on oxides), all based on dry matter. A catalyst produced from the double-component modified molecular sieve has improved hydrothermal stability and microactivity.

Abstract: The present invention relates to a heavy oil catalytic cracking catalyst having a high yield of light oil and preparation methods thereof. The catalyst comprises 2 to 50% by weight of a magnesium-modified ultra-stable rare earth type Y molecular sieve, 0.5 to 30% by weight of one or more other molecular sieves, 0.5 to 70% by weight of clay, 1.0 to 65% by weight of high-temperature-resistant inorganic oxides, and 0.01 to 12.5% by weight of rare earth oxide. The magnesium-modified ultra-stable rare earth type Y molecular sieve is obtained by the following manner: the raw material, a NaY molecular sieve, is subjected to a rare earth exchange, a dispersing pre-exchange, a magnesium salt exchange modification, an ammonium salt exchange for sodium reduction, a second exchange and a second calcination. The catalyst provided in the present invention is characteristic in its high conversion capacity of heavy oil and a high yield of light oil.

Abstract: The present invention relates to a heavy oil catalytic cracking catalyst and preparation method thereof. The catalyst comprises 2 to 50% by weight of an ultra-stable rare earth type Y molecular sieve, 0.5 to 30% by weight of one or more other molecular sieves, 0.5 to 70% by weight of clay, 1.0 to 65% by weight of high-temperature-resistant inorganic oxides, and 0.01 to 12.5% by weight of rare earth oxide. The ultra-stable rare earth type Y molecular sieve is obtained as follows: the raw material, NaY molecular sieve, is subjected to a rare earth exchange and a dispersing pre-exchange, and the molecular sieve slurry is filtered, washed and subjected to a first calcination to produce a “one-exchange one-calcination” rare earth sodium Y molecular sieve, wherein the order of the rare earth exchange and the dispersing pre-exchange is not limited; and the “one-exchange one-calcination” rare earth sodium Y molecular sieve is further subjected to ammonium salt exchange for sodium reduction and a second calcination.

Abstract: The present invention provides a magnesium-modified ultra-stable rare earth type Y molecular sieve and the preparation method thereof, which method is carried out by subjecting a NaY molecular sieve as the raw material to a rare earth exchange and a dispersing pre-exchange, then to an ultra-stabilization calcination treatment, and finally to a magnesium modification. The molecular sieve comprises 0.2 to 5% by weight of magnesium oxide, 1 to 20% by weight of rare earth oxide, and not more than 1.2% by weight of sodium oxide, and has a crystallinity of 46 to 63%, and a lattice parameter of 2.454 nm to 2.471 nm. In contrast to the prior art, in the molecular sieve prepared by this method, rare earth ions are located in sodalite cages, which is demonstrated by the fact that no rare earth ion is lost during the reverse exchange process. Moreover, the molecular sieve prepared by such a method has a molecular particle size D(v,0.5) of not more than 3.0 ?m and a D(v,0.9) of not more than 20 ?m.

Abstract: The present invention provides a base station deployment configuration method. The method includes: receiving, by a base station after being powered on for a first time, a virtual local area network identity and composite information, receiving, by the base station, a plurality of ping packets, and learning, by the base station, the received virtual local area network identity in the service packet and virtual local area network identities in all the received ping packets; traversing, by the base station, the learned virtual local area network identities, and sending a DHCP request to a DHCP server; receiving, by the base station, a DHCP response message returned by the DHCP server; and establishing, by the base station, an OM IP address connection to a management channel of the wireless network manager according to the OM IP address, and receiving a complete configuration delivered through the management channel.

Abstract: A common rail comprises a shell and a pressure detection apparatus and a pressure adjustment apparatus that are installed on the shell. The shell comprises an inlet passage, an outlet passage, at least one conveyance port that is connected to the inlet passage, and at least one flow return port that is connected to the outlet passage. The pressure detection apparatus is connected to the inlet passage. The pressure adjustment apparatus is connected between the inlet passage and the outlet passage. The pressure adjustment apparatus can connect or disconnect the inlet passage and the outlet passage. Also disclosed is a carbamide spraying system having such a common rail. Because a carbamide solution returned from a nozzle is first gathered inside the common rail and then returns to a carbamide tank through the outlet passage and a return flow pipe, the length of the return flow pipe is reduced.

Abstract: Disclosed are an apparatus for cooling a server cabinet, a server cabinet apparatus, and an Internet data center. The apparatus includes: a bracket and a cooling device; where the bracket is positioned below one or a plurality of server cabinets, and the cooling device is positioned in the bracket, and cools the server cabinet on the bracket. The apparatus for cooling a server is positioned below one or a plurality of server cabinets, such that all the server cabinets in a large-scale Internet data center are effectively cooled, and in addition, resources are saved.

Abstract: A common rail assembly used in a urea injection system, comprising at least a first common rail and a second common rail which are connected to each other, wherein the first common rail comprises a first housing, a pressure detecting device mounted on the first housing and a pressure adjusting device. The first housing comprises a first urea inlet channel, a first urea outlet channel, at least one first feeding inlet connected to the first urea inlet channel and at least one first back-flow outlet connected to the first urea outlet channel. The pressure detecting device is connected to the first urea inlet channel. The pressure adjusting device can connect/disconnect the first urea inlet channel to/from the first urea outlet channel. Also disclosed are a urea injection system and the application of the common rail assembly.

Abstract: An exhaust postprocessing component comprises an exhaust pipe, a first support installed on the exhaust pipe, a common rail installed on the first support, an inlet pipeline and an outlet pipeline that are connected to the common rail, a sensor, and a bundle that is connected to the sensor. The common rail comprises a shell and a pressure detection apparatus and a pressure adjustment apparatus that are installed on the shell. The shell comprises an inlet passage and an outlet passage. The pressure detection apparatus is connected to the inlet passage. The pressure adjustment apparatus is connected between the inlet passage and the outlet passage, so as to connect or disconnect the inlet passage and the outlet passage. The engine exhaust postprocessing component further comprises a second support. The bundle, the inlet pipeline, and the outlet pipeline are all gathered at the second support. In this way, the exhaust postprocessing component is easy to be installed with another component.