Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for performing a data sync operation are described. A described technique includes receiving an indication to start a data synchronization between a first version of a computer design model and a second version of the computer design model. In some implementations, first data is extracted from the first version and second data is extracted from the second version. The first data is compared with the second data. Based on the comparison, the first data is updated using the second data, the second data is updated using the first data, or the first data is updated using the second data and the second data is updated using the first data. A geospatial representation is generated using at least one of the updated second data or the updated first data.

Abstract: Metal nanoparticle-bearing carbonaceous supports, or solid-supported metal-catalysts, can be formed by incipient wetness, wet impregnation and ethylene glycol reduction methods. The solid-supported metal-catalysts can be used a heterogeneous catalysts in various catalytic reactions such as hydrodeoxygenation reactions, catalyze hydrodehalogenation reactions, N—N hydrogenolysis reactions and oxidation reactions. The solid-supported metal-catalysts are easy to handle, are easily separable from reaction media, are stable in various types of reaction media, and are recyclable.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for interpreting data in a drawing file. A graphics sync module of a system performs synchronization between graphical data in the drawing file and graphical data in a space management database. Each layer of the drawing file includes graphical data used to digitally render items of a floor map. The system identifies a grouping of layers from the drawing file and retrieves values from a space management database (“SMD”) that includes records with values for entities that correspond to items of the floor map. The graphics sync module extracts values of the graphical data for a layer and synchronizes graphical data for different layers of the drawing file with graphical data in entity records stored in the space management database.

Abstract: Systems and techniques for rendering multi-layer computer-aided design related documents are described. A described technique includes accessing layers associated with a floorplan, the layers including a visual layer that depicts the floorplan and an interactive layer that enables user interaction with the visual layer. The layers can have different sizes. The technique includes determining outer boundaries for a selected layer. The technique includes generating a boundary layer based on a polygon defined by the outer boundaries that surrounds layer content. The technique includes scaling, based on the boundary layer, one or more of the layers to have a size that is within a threshold distance of the boundary layer's size, and after scaling, aligning the visual layer and the interactive layer in a merged graphics layer so that the interactive layer can detect user interaction with a corresponding portion of the visual layer.

Abstract: Systems and techniques for auditing computer-aided design documents are described. A described technique includes receiving a computer-aided design document for import to a space management program; determining whether the computer-aided design document violates a rule set, wherein the rule set is configured to detect issues that inhibit importation of data from the computer-aided design document to the space management program; selectively modifying the computer-aided design document by resolving a violation of the rule set; and providing the modified computer-aided design document to the space management program.

Abstract: A method for a space profile interpreter framework is described. The method includes a data interpreter module receiving a first data file having a data section that includes data representing real-world entities for a layer of a digital geographic structure. The data interpreter module communicates with a computing system for managing a location hierarchy. The module extracts location information included in multiple entity records for the layer. Each entity record corresponds to a respective space profile feature for a real-world entity of the digital geographic structure. A mapping module of a computing system associates the data item of the extracted location information with entity information of the location hierarchy managed by the computing system.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for generating a floorplan user interface. One of the methods includes receiving, from a user device, a request for presentation of image content that depicts a floorplan; determining whether one or more criteria for providing image tiles instead of a vector image that depicts the floorplan are satisfied, each of the image tiles having the same tile size, having a file size that is smaller than a vector image file size for the vector image, and depicting a portion of the floorplan; and in response to determining that the one or more criteria for providing image tiles instead of a vector image that depicts the floorplan are satisfied, providing, to the user device, one or more image tiles from the image tiles to cause the user device to present the one or more image tiles on a display.

Abstract: A signal connector includes a backplane connection part and a subcard connection unit. A first signal terminal pair and a first shielding piece are disposed on the backplane connection part. A second signal terminal pair and a second shielding piece are disposed on the subcard connection unit. When the backplane connection part and the subcard connection unit cooperate with each other, the first signal terminal pair is combined with the second signal terminal pair in a one-to-one manner. The first shielding piece and the second shielding piece form a shielding cavity in which the first signal terminal pair and the second signal terminal pair are wrapped.

Abstract: An escalator monitoring system includes a data collection device disposed near parts of an escalator that need to be monitored for collecting data of the parts; a data transmittal device used to transmit data relevant to safe operation of the escalator; a local data processing device or cloud processors used to receive the data relevant to the safe operation of the escalator, to compare it against a threshold value stored therein and derived from the parts in normal operating conditions, and to respond to comparison result.

Abstract: The present invention discloses an escalator monitoring system, which includes a data collection device disposed near the parts of the escalator that require monitoring in order to collect data the parts relevant to the operation of the escalator, a data transmittal device used to send the collected data, a cloud processor used to receive the data, to compare the data against threshold data of the parts obtained under normal operating conditions stored in the database of the cloud processor, and to respond based on the comparison result. The present invention can collect the data and analyze it in any environment independent of subjective human judgment, predict possible failure without the need to stop the operation of the escalator, save maintenance time, reduce associated cost, and thus improve its safety and ride comfort.

Abstract: An alkaline cupric chloride etchant for a printed circuit board, comprising copper chloride and a sub-etchant. The sub-etchant comprises the following in percentage by weight: 10 to 30 percent of ammonium chloride, 0.0002 to 25 percent of carboxylic acid and/or ammonium carboxylate, 0.01 to 45 percent of ammonium carbonate and/or ammonium bicarbonate, 0.0001 to 20 percent of one or more selected from hydroxylamine hydrochloride, hydroxylamine sulphate and hydrazine hydrate, the balance being water. The initial feed amount B of copper chloride is calculated according to the following formula: B=(134.5/63.5)x the set value of the copper ion concentration A; the control parameter of the production process of the resulting etchant is set to be: the copper ion concentration of 30-170 g/L.

Abstract: A method for a space profile interpreter framework is described. The method includes a data interpreter module receiving a first data file having a data section that includes data representing real-world entities for a layer of a digital geographic structure. The data interpreter module communicates with a computing system for managing a location hierarchy. The module extracts location information included in multiple entity records for the layer. Each entity record corresponds to a respective space profile feature for a real-world entity of the digital geographic structure. A mapping module of a computing system associates the data item of the extracted location information with entity information of the location hierarchy managed by the computing system.

Abstract: Systems and methods are provided for personalizing new song suggestions for a user. A plurality of users provides thumbs up and thumbs down ratings for a pair of songs (song A and B). A first aggregate rating for song B is calculated based on ratings given to song A by all of the users that gave a like rating to song A. Similarly, a second aggregate rating is calculated for song B based on ratings given to song B by all users that gave a dislike rating to song A. Then a user that has not previously rated song B, supplies a rating for song A. A prediction is performed of how the user will rate song B based on the user's rating of song A. For example, the first aggregate rating for song B is used if the user rated song A positively.

Abstract: A laser diode includes a substrate, an epitaxial structure, an electrode contacting layer and an optical cladding layer. The epitaxial structure is disposed on the substrate, and is formed with a ridge structure opposite to the substrate. The electrode contacting layer is disposed on a top surface of the ridge structure. The optical cladding layer has a refractive index smaller than that of the electrode contacting layer The optical cladding layer includes a first cladding portion which covers side walls of the ridge structure, and a second cladding portion which is disposed on a portion of the top surface of the ridge structure. A method for manufacturing the abovementioned laser diode is also disclosed.

Abstract: The present disclosure provides an electromagnetic field transceiver device and a wireless charging device, including: a cover body, a selective shielding cover, a sealing ring and a transceiver unit. The selective shielding cover is provided with an electromagnetic field transceiver window that selectively shields an electric field and/or a magnetic field. The sealing ring sleeves the cover body. The selective shielding cover is seamlessly connected to an opening of the cover body relative to the electric field or the magnetic field through the sealing ring, the selective shielding cover and the cover body form a cavity. The sealing ring is electrically connected to the selective shielding cover, and the sealing ring encloses the electromagnetic field transceiver window. The transceiver unit is provided in the cavity. The transceiver unit is configured to receive or transmit a target electromagnetic field.

Abstract: A high-efficiency and environmental-friendly alkaline cupric chloride etchant for a printed circuit board, comprising copper chloride and a sub-etchant. The sub-etchant comprises the following in percentage by weight: 10 to 30 percent of ammonium chloride, 0.0002 to 25 percent of carboxylic acid and/or ammonium carboxylate, 0.01 to 45 percent of ammonium carbonate and/or ammonium bicarbonate, 0.0001 to 20 percent of one or more selected from hydroxylamine hydrochloride, hydroxylamine sulphate and hydrazine hydrate, the balance being water. The initial feed amount B of copper chloride is calculated according to the following formula: B=(134.5/63.5)×the set value of the copper ion concentration A; the control parameter of the production process of the resulting etchant is set to be: the copper ion concentration of 30-170 g/L.

Abstract: Provided is an elevator monitoring system, including a gateway device, a load weighing device and an elevator controller; the elevator controller is configured to collect status information of an elevator car and fault information when an elevator fails; the gateway device is configured to obtain fault information and status information from the elevator controller; the load weighing device monitors current load value of the elevator car in real time and transmits the current load value to the gateway device; the gateway device calculates a minimum reference load value corresponding to each stopping floor level of the elevator car based on the current load value, updates and records the minimum reference load value in real time; based on the fault information and the status information, if the gateway device determines that the current load value is greater than the minimum reference load value, the gateway device will send a warning alarm.

Abstract: An antenna module includes an inner circuit board, an antenna circuit board, an outer circuit board, and at least one chip. The inner circuit board includes at least one inner wiring layer and at least one inner dielectric layer. The antenna circuit board includes at least one antenna structure. The antenna circuit board and the outer circuit board are disposed on opposite sides of the inner circuit board. The inner wiring layer comprises at least one inner pad. At least one first opening passing through the outer circuit board is defined to expose the inner pad. Each chip is received in one first opening and electrically connects to the inner pad. The antenna structure electrically connects to the chip through the inner wiring layer. A method for manufacturing such antenna module is also provided.

Abstract: A method for an interpreter framework is described. The method includes an interpreter module of a computing system receiving a first data file that includes multiple data sections. The interpreter module identifies each of the data sections of the first data file. Each data section includes data representing a real-world entity. For each respective data section of the first data file, the interpreter module parses information about the real-world entity represented by the data included in the data section. The interpreter module generates a second data file based on the parsed information for each of the data sections. The second data file includes encoded data for rendering a digital geographic structure using information about the real-world entity.