Abstract: This invention discloses a method for preparing hexamethylenediamine, comprising the following steps: (1) under ammoniation reaction conditions, optionally in the presence of a solvent, subjecting hexanediol and ammonia to an ammoniation reaction to obtain an ammoniation reaction product; (2) separating and obtaining from the ammoniation reaction product a stream containing hexamethyleneimine and water, dehydrating the stream containing hexamethyleneimine and water to obtain a dehydrated stream containing hexamethyleneimine, and returning at least part of the dehydrated stream containing hexamethyleneimine as a circulating stream to the step (1), wherein a water content in the dehydrated stream containing hexamethyleneimine is less than 3 wt %, preferably less than 1.5 wt %. The invention can not only improve the yield of hexamethylenediamine but can also prolong the service life of the catalyst.

Abstract: A composition for patterning substrates includes a monomer. The monomer includes a polymerizable unit, a thermally or photochemically activatable crosslinking structure, and an acid-cleavable de-crosslinking structure. The polymerizable unit includes an olefin.

Abstract: Disclosed is a decorative gas stove. The decorative gas stove includes a stove body and a viewing platform. A cavity is defined in the stove body. An energy device is provided inside the cavity for storing gaseous fuel. A supply pipe is provided inside the cavity for transporting the gaseous fuel. A water tank is provided on an upper end of the stove body and a bottom of the water tank is defined with a plurality of air outlet holes communicated with the supply pipe. An ignition portion is provided on a side wall of the water tank for igniting the gaseous fuel flowing to a water surface through the air outlet holes when the water tank is stored with water.

Abstract: The invention provides a heat-release retardative cold conduction device with multi-cavity and multi-phase change and a method of calculating the transfer heat thereof. The device comprises an inner cavity, a heat-release retardative cavity, and a phase-change cold storage cavity. The inner cavity is a hollow sealing structure with an unobstructed central core and two closed ends, and a refrigerant is placed in the cavity; the heat-release retardative cavity is encased on a bottom region outside of the inner cavity, and a phase-change heat storage material is placed in the heat-release retardative cavity; the phase-change cold storage cavity is encased on the outside of the inner cavity and is located in a region above the heat-release retardative cavity, wherein the phase-change cold storage cavity does not completely encase a top region outside of the inner cavity, and a phase-change cold storage material is placed in the phase-change cold storage cavity.

Abstract: Embodiments herein describe a system configured to transmit a freeze signal to all of a plurality of logic blocks within the system when an error or trigger event is detected in a logic block and allow each logic block to determine how to respond to the freeze signal, generate a freeze clock signal provided to a main functional logic of the logic block while permitting status and memory content to be read when the logic block enters into a clock freeze mode, generate a status freeze signal to stop a trace logic block from tracing incoming data, and collect a debug status of each of the plurality of logic blocks at a time the error or trigger event was detected or collect statistics within a same time sampling window across the system to perform a debug operation.

Abstract: Provided is a method of reconstructing and randomly generating three-dimensional profiles of railway ballast particles. The method focuses on two aspects of accurate characterization and random generation of the railway ballast profiles. The method specifically includes: first, obtaining a lot of railway ballast profile samples to form a railway ballast library, and describing the uncertainty of the railway ballasts as much as possible; introducing a spherical harmonic function method into the three-dimensional profile characterization of railway ballast particles in order to accurately reconstruct the railway ballast particle profiles; and finally, establishing a joint probability density function of a spherical harmonic function spectrum to randomly generate railway ballast particles.

Abstract: The rate limiter circuits in the packet processing chip of a NIC are a limited hardware resource that may limit the number of workloads that can be run on a server. Some such chips include an egress packet processing pipeline circuit and a second packet processing pipeline circuit that prepares work for the egress pipeline circuit. Some of the stages of the second pipeline circuit can be configured as a first limiter and a second limiter that implement aspects of different rate limiters such as IOPS limiters, bandwidth limiters, etc. Another pipeline stage can use the outputs of the different rate limiters to make a limiting decision that is written into one of the rate limiter circuits. The second pipeline circuit is thereby implementing virtualized rate limiters where one of the rate limiter circuits performs the rate limiting for the virtualized rate limiters.

Abstract: The present invention provides a method of calculating the dosage of phase change coarse aggregate, which comprises the steps of setting a regulatory temperature difference of a thermoregulating cement-stabilized layer, the regulatory temperature difference being the difference between the peak temperature of the thermoregulating cement-stabilized layer and the peak temperature of a conventional cement-stabilized layer, wherein the thermoregulating cement-stabilized layer is mixed with a phase change coarse aggregate, while the conventional cement-stabilized layer is not mixed with a phase change coarse aggregate; calculating a regulatory heat based on the regulatory temperature difference, wherein when a temperature change of the conventional cement-stabilized layer is the regulatory temperature difference, a heat change of the conventional cement-stabilized layer is the regulatory heat; and calculating a volume occupied by the phase change coarse aggregate in the thermoregulating cement-stabilized layer bas

Abstract: The present invention relates to a process for producing succinic anhydride by maleic anhydride hydrogenation, comprising (1) feeding a maleic anhydride solution and a hydrogen raw material respectively to a first-stage hydrogenation reactor from an upper liquid-phase feed port and a top gas-phase feed port of the first-stage hydrogenation reactor for a first-stage hydrogenation reaction to obtain a first-stage hydrogenation product; (2) feeding the first-stage hydrogenation product to a second-stage hydrogenation reactor for a second-stage hydrogenation reaction to obtain a second-stage hydrogenation product, optionally, before entering the second-stage hydrogenation reactor, subjecting the first-stage hydrogenation product to a first-stage gas-liquid separation to obtain a first-stage gas phase and a first-stage liquid phase, and then feeding the first-stage gas phase and the first-stage liquid phase respectively from a top gas-phase feed port and an upper liquid-phase feed port of the second-stage hydrogen

Abstract: A method of processing a substrate that includes: depositing first and second monomers over a substrate, the first monomer being a first type of monomer and the second monomer being a second type of monomer different from the first type of monomer; exposing the substrate to a first actinic radiation to induce a polymerization of the first and second monomers over the substrate, where, after the polymerization, the substrate has a bow with a first curvature; and exposing the substrate to a second actinic radiation to induce a rearrangement of the polymer, the rearrangement reducing the bow.

Abstract: An antimicrobial peptide Bolespleenin of Boleophthalmus pectinirostris and application thereof, and an amino acid sequence of the antimicrobial polypeptide Bolespleenin is shown in SEQ ID NO.01.

Abstract: This document describes systems and techniques directed at a machine-learning-based greedy optimization mechanism for reducing radio-frequency (RF) tests in production. In aspects, a process capability index is disclosed, the process capability index used to refine a test-set. The test-set includes tests configured to be performed on an electronic device. The process capability index is configured based on upper specification limits and lower specification limits of the electronic device for each test in the test-set, as well as results for each of the tests in the test-set. The process capability index is further configured based on a new upper specification limit and a new lower specification limit of the electronic device for a new test not in the test-set, as well as results for the new test.

Abstract: Disclosed is a debris flow anti-collision device with a high-speed water curtain for a mountain bridge. A pressurizer is fixedly installed in a groove of a base; the pressurizer is communicated with high-speed water curtain spray pipe components, and each high-speed water curtain spray pipe component penetrates through a side wall of the base and communicates with an outside; the base rotates with several groups of spoilers, an outer side of the base is fixedly provided with several groups of energy dissipation components, and a connecting bar is detachably connected between each group of energy dissipation components and the base; rear ends of the base are detachably connected with baffles; and the pressurizer is communicated with a water storage tank.

Abstract: Disclosed is a decorative gas stove. The decorative gas stove includes a stove body and a viewing platform. A cavity is defined in the stove body. An energy device is provided inside the cavity for storing gaseous fuel. A supply pipe is provided inside the cavity for transporting the gaseous fuel. A water tank is provided on an upper end of the stove body and a bottom of the water tank is defined with a plurality of air outlet holes communicated with the supply pipe. An ignition portion is provided on a side wall of the water tank for igniting the gaseous fuel flowing to a water surface through the air outlet holes when the water tank is stored with water.

Abstract: The rate limiter circuits in the packet processing chip of a NIC are a limited hardware resource that may limit the number of workloads that can be run on a server. Some such chips include an egress packet processing pipeline circuit and a second packet processing pipeline circuit that prepares work for the egress pipeline circuit. Some of the stages of the second pipeline circuit can be configured as a first limiter and a second limiter that implement aspects of different rate limiters such as IOPS limiters, bandwidth limiters, etc. Another pipeline stage can use the outputs of the different rate limiters to make a limiting decision that is written into one of the rate limiter circuits. The second pipeline circuit is thereby implementing virtualized rate limiters where one of the rate limiter circuits performs the rate limiting for the virtualized rate limiters.

Abstract: The present application provides a compound dry powder inhalant, comprising baicalin, ambroxol hydrochloride, L-leucine and phosphate, wherein based on a mass of the compound dry powder inhalant, L-leucine accounts for 0-50%, phosphate accounts for 15-35%, and a total mass of baicalin and ambroxol hydrochloride accounts for 15-85%, and wherein a mass ratio of baicalin to ambroxol hydrochloride is 1:0.2 to 2. The compound dry powder inhalant has a Dv90?5 ?m. The drug combination of baicalin and ambroxol hydrochloride can effectively reduce inflammation and oxidative damage in lung tissue, alleviate pulmonary edema and histopathological changes, and reduce pulmonary dysfunction and pulmonary fibrosis.

Abstract: Disclosed is a debris flow anti-collision device with a high-speed water curtain for a mountain bridge. A pressurizer is fixedly installed in a groove of a base; the pressurizer is communicated with high-speed water curtain spray pipe components, and each high-speed water curtain spray pipe component penetrates through a side wall of the base and communicates with an outside; the base rotates with several groups of spoilers, an outer side of the base is fixedly provided with several groups of energy dissipation components, and a connecting bar is detachably connected between each group of energy dissipation components and the base; rear ends of the base are detachably connected with baffles; and the pressurizer is communicated with a water storage tank.

Abstract: Provided is an application of trehalase in fermentative production. The trehalase has amino acid sequences shown in SEQ ID NO.6, SEQ ID NO.7, and SEQ ID NO.8. Provided are methods for producing and applying trehalase, particularly being applied in the production and fermentation of alcohol and an amino acid.

Abstract: The present invention provides a pose estimation method for an unmanned aerial vehicle based on point, line and plane feature fusion, the method comprises the following steps: S1 extracting an RGB image and a depth map by using an RGB-D camera; S2 constructing a plane parameter space (PPS) according to the depth map, and mapping the depth map from a Cartesian space to the plane parameter space (PPS); S3 constructing an inverse octree structure, comprising: reversely constructing cell nodes for the plane parameter space (PPS) according to an octree rule, and for each cell node, performing fitting by using Gaussian distribution; S4 extracting a plane feature, comprising: extracting the plane feature on the basis of degree of feature extraction algorithm of the inverse octree; S5 extracting a linear feature, comprising: extracting a linear feature on the RGB image by using LSD algorithm detection.