Abstract: A method for performing Building Information Modelling design collaboration via Confidentiality-Minded Framework using Interplanetary-File-System-Blockchain integrated network by a server is provided. The method includes: segregating one or more sensitive and non-sensitive BIM portions of a BIM object; uploading a target BIM component into an IPFS network to receive a target content identifier (CID) of the target BIM component from the IPFS network; if the target BIM component has one or more of the sensitive portions, encrypting the target CID to obtain a target encrypted CID (ECID), and adding the target ECID into a target blockchain ledger as a target transaction via a target smart contract; accessing the target transaction to download the target BIM component from the IPFS network; and performing a design coordination operation on the target BIM component, so as to distributing revised target BIM component to a receiver terminal.

Abstract: A system for monitoring safety compliance comprises a plurality of cameras and a computing system. The plurality of cameras are configured to obtain data, and the data comprises multiple images associated with one or more objects. The computing system is configured to process the data to determine the safety compliance of the one or more objects associated with the multiple images based on implementing a first model trained for re-identification. The computing system is further configured to train the first model for re-identification, by determining a similarity loss and updating the first model based on the similarity loss.

Abstract: A system for pedestrian re-identification comprises multiple cameras and a computing system. The cameras are configured to obtain data. The data comprises multiple images associated with one or more objects. The computing system is configured to extract features for each of the multiple images, determine a descriptor for each of the multiple images, and identify one or more images among the multiple images associated with an object among the one or more objects based on the descriptors of the multiple images. A respective descriptor for a respective image comprises a first set of units representing all the extracted features in the respective image and a second set of units representing a subset of the extracted features in the respective image.

Abstract: The present invention provides a way to measure the position of an instrument that is mounted on an instrument shaft within a clutched mounting system, the instrument shaft being driven through a reduction gearbox by a motor shaft. The position of the instrument is measured as a function of the position of the motor shaft and the position of the instrument shaft, the measurement of the position of the motor shaft providing greater precision than the position of the instrument shaft. Because the mounting system is clutched, it is necessary to check at intervals whether the measurement of the motor shaft position no longer accurately represents the position of the instrument, in which case the measurement of the motor shaft position is resynchronized to the measurement of the instrument shaft.

Abstract: Synthetic diamond crystals and films are deposited on a pair of uniformly spaced apart facing plates made of silicon, molybdenum or boron in elemental, nitride or carbide form. The plates are suitably supported within a totally thermally insulated chamber where a pressure of about 10 torr or less is maintained in the form of an atmosphere which includes a carbon source and a major portion of hydrogen, and preferably includes oxygen in equal amount to the carbon. By supplying sufficient microwave power to create a plasma and a uniform temperature of about 950.degree. C. at the plate surfaces, diamond crystals economically grow on the surfaces of the facing plates. Preferably, either the plates or the backing sections thereof have a relatively high thermal conductivity so as to maintain a uniform temperature across the entire plate surface areas.

Abstract: The present invention is related to a composition and methods for producing highly pure, high temperature superconducting materials having the general formula MBa.sub.2 Cu.sub.3 O.sub.7-x, where M is yttrium or a rare earth element and x is from 0 to 0.5. The superconducting material is produced by first obtaining a solution of yttrium or rare earth element and copper. Next a solution of barium is obtained. The two solutions are heated and mixed together forming a precursor precipitate of the superconducting material. Subsequently, in one embodiment of the invention, the precipitate is recovered, calcined, sintered and slow cooled in oxygen or air. This produces a material having a desirable orthorhomic structure which is superconductive at high temperatures.Because no organic solvents are used and no pH control other than the amount of barium in the solution is employed, it is possible to provide a highly pure superconducting material.

Abstract: The first wall of a deuterium-tritium fusion reactor is regenerated in situ. The first wall substantially surrounds an enclosed reaction region confined within the reaction chamber of the reactor. To regenerate a worn first wall without opening the reactor chamber, a gaseous substance is introduced into the chamber, at least a portion of the gaseous substance comprising material, such as low Z refractory material, suitable for forming the first wall. At least a portion of this material is deposited, as by pyrolysis, in solid form on the first wall to regenerate the first wall, and residual gas is removed from the chamber. The chamber is then recharged with a mixture of deuterium and tritium. All the while the inflow of contaminants into the chamber is substantially excluded. Preferably, the pyrolysis of the gaseous substance is effected by energizing the coils used in the operation of the reactor for producing a plasma of deuterium and tritium ions in the reaction chamber.