Abstract: Disclosed is an apparatus for controlling a rotation speed of a motor, a motor and a food processing equipment. The apparatus includes: a rotation speed feedback circuit and a rotation speed control loop; the rotation speed feedback circuit comprises a rotation speed inducing unit configured to induce a current rotation speed of the motor and output a rotation speed detection signal, and a resistance adjusting unit configured to adjust a total resistance of a resistor unit of the rotation speed control loop according to the rotation speed detection signal; the rotation speed control loop comprises the resistor unit, a first capacitor, a first controllable switch and a second controllable switch.

Abstract: Generally discussed herein are devices, systems, and methods for clustering based on context triggered piecewise hashing (CTPH). A method can include determining a first index of a first CTPH string of the file. The first index can include contiguous bits of the CTPH string. The first index can be smaller than the CTPH string, such as to be a proper subset of the CTPH string. The method can include determining the first index matches a second index of a cluster of files and in response to determining the first index matches the second index of the cluster, associating the file with the cluster. The method can include determining that the file includes malware based on the cluster.

Abstract: An autonomous robotic exploration method based on a reduced approximated generalized Voronoi graph, the method including: 1) constructing a reduced approximated generalized Voronoi topological map based on a morphological method; 2) obtaining an Next-Best-View and planning a global path from the robot to the Next-Best-View; and 3) navigating to the Next-Best-View along the global path R={r0, r1, r2, . . . , pNBV} based on a visual force field (VFF) algorithm.

Abstract: Disclosed are compounds of Formula A, or a salt thereof: Formula (A), wherein: Het, Q and R1A to R4A are defined herein, which compounds have properties for blocking Nav 1.7 ion channels found in peripheral and sympathetic neurons. Also described are pharmaceutical formulations comprising the compounds of Formula A or their salts, and methods of treating cough, itch, acute pain and neuropathic pain disorders using the same.

Abstract: The present invention relates to an inhibitor of cyclin-dependent kinase CDK9, having a structure of formula (I). The present invention also provides a method of treating a cancer or a precancerous condition related to CDK9 activity with the inhibitor and a use of the same.

Abstract: The present invention provides pharmaceutically acceptable salts of compounds of Formula I that are potent EP4 receptor antagonists and can be used for treating cancer or inflammatory diseases alone or in combination with antibody therapy, radiation therapy, anti-metabolite chemotherapy to a subject in need thereof.

Abstract: The present disclosure relates to an anode for generating ozone by electrolysis of water, a preparation method and use thereof, an ozone generating system, and a dental scaler. The anode includes a titanium substrate and a composite oxide layer attached to a surface of the titanium substrate. The composite oxide layer is made of a metal oxide. Metal elements in the metal oxide comprise tin, ruthenium, manganese, titanium, and nickel, and a molar ratio of tin, ruthenium, manganese, titanium, and nickel is (200-500):(2.5-20):1:(1.5-7):(5-15).

Abstract: A method, including: 1) inputting a multi-story point cloud, and segmenting a story and an inter-story connection region based on an elevation histogram of the point cloud in a vertical direction; 2) segmenting rooms for each story based on a grid map projected onto an XOY plane respectively, wherein the XOY plane is parallel to a flooring; 3) segmenting indoor space cells for each story based on a vector wall line respectively; constructing a vector indoor plan based on superimposition of the vector and the grid for each story respectively; and 5) establishing a three-dimensional model of a multi-story structure by deleting an overlapping surface between the story and the connection region according to the Boolean intersection.

Abstract: The use of EP4 receptor antagonist compounds represented by Formula (I) (or pharmaceutically acceptable salts thereof) as defined herein is provided for treating cancer or inflammatory disease by administering such an EP4 antagonist alone or in combination with an antibody therapy, radiation therapy, anti-metabolite chemotherapy to a subject in need thereof.

Abstract: A pulsation-free wet spraying machine resolves the issue of pulsing during pumping of a concrete spraying machine The wet spraying machine includes a frame, a pumping mechanism, a swing mechanism and a hydraulic system, wherein the pumping mechanism includes a hopper, a material chamber, a concrete feeding mechanism, an auxiliary feeding mechanism and a distribution valve. The hopper of the pumping mechanism is disposed above the material chamber. The distribution valve is disposed inside the material chamber, the concrete feeding mechanism and the auxiliary feeding mechanism both include a hydraulic cylinder, a concrete piston and a concrete cylinder, a discharge pipe is a three-way pipe fixed at a side surface of the material chamber, an auxiliary discharge pipe of the discharge pipe is connected with an auxiliary concrete cylinder, and a through hole is disposed on the auxiliary concrete cylinder.

Abstract: A retraction device includes: a spindle, a support plate and a plurality of spring washers. The spindle is movable along an axis direction thereof and has a first end; a support plate has a fixed position, the first end of the spindle penetrates the support plate; and the plurality of spring washers are fitted over the first end of the spindle and stacked together in an identical direction. The plurality of spring washers are compressed between the spindle and the support plate with a predetermined pre-load. The spindle is configured to be switchable between a first position and a second position, and capable of moving a predetermined distance relative to the support plate in the axis direction of the spindle during switching. When in the first position, the spindle is farthest from the support plate, when in the second position, the spindle is closest to the support plate.

Abstract: An array substrate, a method for manufacturing an array substrate and a display device are provided. The array substrate includes: a base substrate, and an insulating layer, a gate line, a source electrode, a drain electrode, and a data line on the base substrate. The insulating layer includes a light transmission portion and a light shielding portion, and orthographic projections of the gate line, the source electrode, the drain electrode, and the data line on the base substrate are all within an orthographic projection of the light shielding portion on the base substrate.

Abstract: A retraction device includes a spindle movable along the axis thereof and an operating unit including a pull rod and a movable member. The movable member defines a step-shaped groove, the pull rod has a first end connected to the spindle, and a second end received in the groove; the groove includes a first step and a second step and an inclined face connecting the first step and the second step arranged along a first direction, and a height of the second step is greater than that of the first step along the axis direction of the spindle; the movable member is slidable along the first direction relative to the pull rod, to allow the spindle to switch between a retraction position in which the pull rod is received in the second step, and a release position in which the pull rod is received in the first step.

Abstract: A processor-implemented method receives a plurality of pollution measurement data, a plurality of geodetic data, and a plurality of meteorological data associated with a geographical area. The processor-implemented method generates a grid of the geographical area, whereby the generated grid virtually divides the geographical area into a plurality of cells. The processor-implemented method associates the received plurality of measurement data, the received plurality of geodetic data, and the received plurality of meteorological data with a cell in the generated grid. The processor-implemented method determines a pollutant contribution value of the cell based on the pollution measurement data associated with the cell and a physical contribution of a plurality of pollutants. The processor-implemented method identifies the pollution source based on a paired comparison of the plurality of cells and displays the location on the geographical area associated with the identified pollution source.

Abstract: A rotating direction change device for a microtome includes: a first shaft arranged in a first fixed position; a first gear wheel non-rotatably mounted to the first shaft; a second shaft movable in a first direction; a second gear wheel non-rotatably mounted to the second shaft; a third shaft movable in a second direction; a third gear wheel non-rotatably mounted to the third shaft; and a first connection part connecting the second shaft and the third shaft such that the second gear wheel is constantly meshed with the third gear wheel, in which the second gear wheel can be driven by the first gear wheel directly or indirectly. Hence, the rotating direction change device has advantages of simple structure and low friction.

Abstract: Disclosed are compounds of Formula A, or a salt thereof: Formula (A), wherein: Het, Q and R1A to R4A are defined herein, which compounds have properties for blocking Nav 1.7 ion channels found in peripheral and sympathetic neurons. Also described are pharmaceutical formulations comprising the compounds of Formula A or their salts, and methods of treating cough, itch, acute pain and neuropathic pain disorders using the same.