Abstract: The present disclosure relates to a method for preparing an ordered porous carbon materials with inexpensive carbon black. The method comprises: dispersing carbon black into a concentrated nitric acid to obtain a uniform dispersion; placing the dispersion in a reactor to perform a reaction by a one-step hydrothermal process; and washing and drying the reaction mixture to obtain an ordered porous carbon material in a honeycomb-like arrangement and rich in oxygen defects. The present disclosure also relates to an ordered porous carbon material prepared by the method, a method for electrocatalytically reducing carbon dioxide to formic acid under ambient temperature and atmospheric pressure by using the ordered porous carbon material, and a method for electrocatalytically reducing nitrogen to ammonia under ambient temperature and atmospheric pressure by using the ordered porous carbon material as a supported catalyst.

Abstract: A method for integrated optimization of a ternary FPRM circuit comprises: establishing an area estimation model, a power consumption estimation model and a delay estimation model of a ternary FPRM circuit under a p polarity; constructing a correlation between a multi-objective teaching-learning optimization algorithm and optimization of an area, power consumption and a delay of the ternary FPRM circuit; expressing positions of the individuals in the multi-objective teaching-learning optimization algorithm as polarities of the ternary FPRM circuit, and expressing a search space as a space for polarity selection of the ternary FPRM circuit; and finally, searching for a set of Pareto optimum polarity solution for the area, power consumption and delay of the ternary FPRM circuit by means of the multi-objective teaching-learning optimization algorithm to complete the optimization of the area, power consumption and delay for the ternary FPRM circuits.

Abstract: A first local application (APP) opens a web page. The first local APP wakes a second local APP. The second local APP starts a local server. The first local APP sends a reference request to the local server. If a response returned by the local server is received, the first local APP stops a jump to a directed download page.

Abstract: Matrix-filled liquid radiation curable resin compositions for additive fabrication are described and claimed. Such resins include a cationically polymerizable component that is an aliphatic epoxide, a multifunctional (meth)acrylate component, a cationic photoinitiator, a free-radical photoinitiator, and a matrix of inorganic fillers, wherein the matrix further constitutes prescribed ratios of at least one microparticle constituent and at least one nanoparticle constituent. Also described and claimed is a process for using the matrix-filled liquid radiation curable resins for additive fabrication to create three dimensional parts, and the three-dimensional parts made from the liquid radiation curable resins for additive fabrication.

Abstract: Presented herein are embodiments of a prefix-to-prefix framework for simultaneous translation that implicitly learns to anticipates in a single translation. Within these frameworks are effective “wait-k” policy model embodiments that may be trained to generate a target sentence concurrently with a source sentence but lag behind by a predefined number of words. Embodiments of the prefix-to-prefix framework achieve low latency and better quality when compared to full-sentence translation in four directions: Chinese?English and German?English. Also presented herein is a novel latency metric that addresses deficiencies of previous latency metrics.

Abstract: The present disclosure provides a lock catch, a heat preservation plate assembly and a refrigerator.

Abstract: A driving intention determining method includes obtaining status information of traffic targets in a driving environment, where the traffic targets include a traffic target in a moving state and traffic targets in a static state, and status information of the traffic targets in a static state includes at least indication information of a traffic sign and road boundary information, determining a risk field of the driving environment based on the status information of the traffic targets in the driving environment, for any other vehicle in the driving environment, determining a driving track of the other vehicle in the driving environment based on the risk field, and determining driving intention of the other vehicle based on the driving track of the other vehicle in the driving environment.

Abstract: A lifting shelf bracket and a refrigerator having same are provided. The shelf bracket includes: a first rack and a second rack arranged vertically and parallel to each other, and toothed surfaces of the first rack and the second rack are opposite to each other; a first gear and a second gear meshing with each other and disposed between the first rack and the second rack, the first gear meshing with the first rack, and the second gear meshing with the second rack; a movable fixing plate, the second gear being rotatably connected to the movable fixing plate (5) via a first rotation shaft; a first transmission rod having an end passing through the fixing plate and fixedly connected to the first gear, and the first transmission rod rotatable around a central axis thereof; and a locking device disposed to the fixing plate for locking and unlocking the first transmission rod.

Abstract: The present invention provides a carbon nitride-based photocatalyst and a preparation method thereof. The photocatalyst is prepared by reaction of melem with 3,3?,4,4?-benzophenonetetracarboxylic dianhydride. The photocatalyst according to an embodiment of the present invention achieves energy level matching in structure between the melem structure and the 3,3?,4,4?-benzophenonetetracarboxylic dianhydride, reduces a singlet-triplet energy gap (?EST), promotes an intersystem crossing process, thereby enhancing the singlet oxygen production and improving the selective photocatalytic oxidation ability.

Abstract: The present disclosure provides a door opening and closing device, and a refrigerator. A door of the refrigerator is rotatably connected to a refrigerator body by means of a rotating shaft, wherein the rotating shaft is fixedly connected to the door, the door opening and closing device includes a connecting rod, a first drive means, a second drive means and an elastic member. The connecting rod is arranged on the door, and the connecting rod includes a first end and a second end that matches a shaft hole. The first drive means is connected to the connecting rod and is configured to drive the connecting rod to rotate. The second drive means is configured to drive the connecting rod to move towards the shaft hole, and cause the second end of the connecting rod to be inserted into the shaft hole.

Abstract: Matrix-filled liquid radiation curable resin compositions for additive fabrication are described and claimed. Such resins include a cationically polymerizable component that is an aliphatic epoxide, a multifunctional (meth)acrylate component, a cationic photoinitiator, a free-radical photoinitiator, and a matrix of inorganic fillers, wherein the matrix further constitutes prescribed ratios of at least one microparticle constituent and at least one nanoparticle constituent. Also described and claimed is a process for using the matrix-filled liquid radiation curable resins for additive fabrication to create three dimensional parts, and the three-dimensional parts made from the liquid radiation curable resins for additive fabrication.

Abstract: A 2-substituted aromatic ring-pyrimidine derivative as shown in a general formula I, and an optical isomer or a pharmaceutically acceptable salt or a solvate thereof are provided. The present invention designs and synthesizes a series of novel small molecular Chk1 inhibitors by using N-substituted pyridin-2-aminopyrimidine obtained through structure-based virtual screening as a lead compound, and carries out Chk1 kinase inhibitory activity test. The experiment confirmed that said compounds possess strong anti-cancer effect, Chk1 kinase inhibitory activity and are promising Chk1 inhibitors. The compounds can be used as new cancer therapeutic drugs, which can be applied to treat solid tumors or hematologic tumors related to proliferative disease of human or animal.

Abstract: The present application discloses a man-machine identification method and device for a captcha. The method includes: collecting real-time user data when a first user inputs the captcha; and making a prediction for the real-time user data according to a machine learning model to determine an attribute of the first user. The machine learning model is obtained by training a sample data set, the sample data set includes one or more sets of training sample data and a label respectively set for each set of training sample data, and the label represents an attribute of a second user.

Abstract: A device and method for measuring amplitude of a scanning mirror are disclosed. The device includes a light source (20) for outputting an optical signal; a diaphragm (21) for modifying size and shape of a light spot of the optical signal output by the light source (20); a scanning mirror retainer for placing a scanning mirror (22) to be measured, the scanning mirror, after being retained, being able to periodically reflect the optical signal; a photoelectric sensor (23) including three or more sensing elements and configured to detect and collect the optical signal reflected by the scanning mirror (22); and a signal acquisition and processing unit (24) for processing a signal collected by the photoelectric sensor (23) to derive an amplitude of the scanning mirror (22). Therefore, it is possible to characterize the scanning mirror (22) before the scanning mirror (22) is used, determining performance of the scanning mirror (22).

Abstract: The present disclosure relates to a preparation method and use of a thickness-controllable bismuth nanosheet and its alloy, in order to solve the technical problems that the existing metal catalysts for the conversion of carbon dioxide to formic acid exhibit a low efficiency, a high overpotential, a relatively positive hydrogen evolution potential, and a poor stability. The present disclosure for the first time obtains a bismuth nanosheet of a single atom layer thickness with a thickness of only 0.7 nm through an aqueous solution reduction method by using a bismuth salt compound as a raw material, using ethylene glycol ethyl ether as a solvent, and using a highly reductive aqueous solution containing NaBH4, LiBH4 or the like as a reducing agent, under a protection atmosphere of an inert gas; and the thickness is adjustable. The bismuth nanosheet prepared according to the present disclosure exhibits an excellent CO2 catalytic reduction property.

Abstract: The present invention relates to crystal form A of a compound. The present invention also discloses a preparation method and a pharmaceutical composition of the crystal form A. The crystal form A has strong hypoglycemic activity in vivo and is expected to be a novel pharmaceutically active ingredient for treating or preventing type II diabetes and/or complications of type II diabetes.

Abstract: The present invention relates to the fields of medicinal chemistry and pharmacotherapy, and specifically relates to the chemical compound of formula (I), and its racemate, R-isomer, S-isomer, pharmaceutically acceptable salt, and mixtures thereof, as well as its method for preparation, a pharmaceutical composition containing said chemical compound, and use as a lysine-specific demethylase 1 (LSD 1) inhibitor. The cyclopropylamine chemical compound to which the present invention relates may be used in the treatment of cancer.

Abstract: A lifting shelf bracket and a refrigerator having same are provided. The shelf bracket includes: a first rack and a second rack arranged vertically and parallel to each other, and toothed surfaces of the first rack and the second rack are opposite to each other; a first gear and a second gear meshing with each other and disposed between the first rack and the second rack, the first gear meshing with the first rack, and the second gear meshing with the second rack; a movable fixing plate, the second gear being rotatably connected to the movable fixing plate (5) via a first rotation shaft; a first transmission rod having an end passing through the fixing plate and fixedly connected to the first gear, and the first transmission rod rotatable around a central axis thereof; and a locking device disposed to the fixing plate for locking and unlocking the first transmission rod.

Abstract: The invention describes an aryl-2,2?-tandem bisthiazole compound and a preparation method and the use thereof. In particular, disclosed in the present invention are an aryl-2,2?-tandem bisthiazole compound with the structure as shown in general formula I and the preparation method thereof and use thereof as a histone deacetylase inhibitor in the preparation of antitumor drugs.