Abstract: Systems and methods are disclosed for implementing blockchain technology in a data storage system. In certain embodiments, a data storage device may upload a copy of a file to a cloud server for storage, and receive a network link to the copy of the file. The data storage device may then provide file metadata and the network link to a distributed ledger blockchain system to create a blockchain entry.

Abstract: Systems and methods are disclosed for implementing blockchain technology in a data storage system. In certain embodiments, a data storage device may upload a copy of a file to a cloud server for storage, and receive a network link to the copy of the file. The data storage device may then provide file metadata and the network link to a distributed ledger blockchain system to create a blockchain entry.

Abstract: Processing data representing a wavefield propagating through a medium by defining, based on one or more properties of a region of the medium and of the wavefield therein, a desired timestep and a desired spatial step for a discrete operator. Discrete seed operators having an initial timestep and an initial spatial step less than the desired timestep and the desired spatial step are then defined, and these seed operators are compounded to obtain an operator having a greater timestep and upscaled to obtain an operator having a greater spatial step. The compounding and upscaling are repeated until an operator having the desired timestep and the desired spatial step is obtained. The operator having the desired timestep and the desired spatial step may be applied to the data representing the wavefield propagating through a medium to propagate the data backwards in time to recreate the wavefield at earlier times.

Abstract: A dispersion of nanoplatelets or particles suspended in a carrier liquid is disclosed. The nanoplatelets or particles, e.g. graphene nanoplatelets, are derived from a layered material. The loading amount of nanoplatelets or particles in the dispersion is at least 20 mg nanoplatelets or particles per 1 ml of dispersion. The dispersion optionally further including a dispersant, the volume ratio of dispersant to the nanoplatelets or particles being less than 1:1. A process for manufacturing the dispersion includes mixing the carrier liquid and the nanoplatelets or particles under high shear conditions. The dispersion can be used as an ink system, as a functional additive within an ink, coating or adhesive formulation, and/or in the manufacture of a nanoplatelet-polymer composite or a particle-polymer composite.

Abstract: Systems and methods for compensating for spatial and slowness or angle blurring of plane-wave reflection coefficients in imaging. A wave field may be determined at a reference depth proximate to a reflector for a shot record. A receiver-side blurring function may be determined at the reference depth. An aggregate blurring function may be constructed based at least partially on the source wave field and the receiver-side blurring function. A plane-wave reflection coefficients may be determined based at least partially on the aggregate blurring function.

Abstract: Systems and methods for compensating for spatial and slowness or angle blurring of plane-wave reflection coefficients in imaging. A wave field may be determined at a reference depth proximate to a reflector for a shot record. A receiver-side blurring function may be determined at the reference depth. An aggregate blurring function may be constructed based at least partially on the source wave field and the receiver-side blurring function. A plane-wave reflection coefficients may be determined based at least partially on the aggregate blurring function.

Abstract: Forward modeling is performed to compute a response of a target structure, the forward modeling accounting for distortion of a reflected signal from a reflector in the target structure. Waveform inversion is performed using the response of the forward modeling.

Abstract: Processing data representing a wavefield propagating through a medium by defining, based on one or more properties of a region of the medium and of the wavefield therein, a desired timestep and a desired spatial step for a discrete operator. Discrete seed operators having an initial timestep and an initial spatial step less than the desired timestep and the desired spatial step are then defined, and these seed operators are compounded to obtain an operator having a greater timestep and upscaled to obtain an operator having a greater spatial step. The compounding and upscaling are repeated until an operator having the desired timestep and the desired spatial step is obtained. The operator having the desired timestep and the desired spatial step may be applied to the data representing the wavefield propagating through a medium to propagate the data backwards in time to recreate the wavefield at earlier times.

Abstract: There is provided a method of direct waveform inversion of turning waves (311, 312, 313) to determine parameters characterizing properties of the earth or sub-sections of the earth, particularly of parts of the earth which are capable of trapping hydrocarbons with the inversion yielding from the wavefield of turning waves information representing or being equivalent to velocities or slownesses and/or the gradient of velocities or slownesses, particularly by evaluating wavefield data in the vicinity of turning points (33). The method can be applied sequentially as a survey sinking method.

Abstract: The present invention relates to a method of processing seismic data and other geophysical data such as acoustic or electromagnetic data. In particular the method is applicable to seismic data extrapolation and migration techniques such as, for example, one-way and two-way wave-equation migration. The method comprises determining, in the space-time domain, an integral of the product of a kernel and a function of the geophysical data over an integration domain from the values of the function at a plurality of discrete data points within the integration domain by defining a plurality of cells in the integration domain, each vertex of a cell being at a respective one of the data points; obtaining an interpolant of the function over a selected cell using local interpolation; and integrating, in the space-time domain, the product of the kernel and the interpolant for the selected cell.

Abstract: Forward modeling is performed to compute a response of a target structure, the forward modeling accounting for distortion of a reflected signal from a reflector in the target structure. Waveform inversion is performed using the response of the forward modeling.

Abstract: The invention relates to compounds of formula (X), and salts thereof, and their use as intermediates in improved manufacturing processes for the synthesis of pharmaceutical compound (I): X is ?O, ?N—OH or ?N—OC(O)Me; Y is hydrogen, PhS- or p-chlorophenylsulfanyl; Z is hydrogen or —CH2COOR1 wherein R1 is selected from hydrogen, optionally substituted hydrocarbyl and optionally substituted heterocyclyl.

Abstract: The invention relates to compounds of formula (X), and salts thereof, and their use as intermediates in improved manufacturing processes for the synthesis of pharmaceutical compound (I): X is ?O, ?N—OH or ?N—OC(O)Me; Y is hydrogen, PhS- or p-chlorophenylsulfanyl; Z is hydrogen or —CH2COOR1 wherein R1 is selected from hydrogen, optionally substituted hydrocarbyl and optionally substituted heterocyclyl.

Abstract: A method for the preparation of a compound of formula (1) or a pharmaceutically acceptable salt or solvate thereof; from a compound of the formula: (IV); wherein L represents a leaving group.

Abstract: There is provided a method of direct waveform inversion of turning waves (311, 312, 313) to determine parameters characterizing properties of the earth or sub-sections of the earth, particularly of parts of the earth which are capable of trapping hydrocarbons with the inversion yielding from the wavefield of turning waves information representing or being equivalent to velocities or slownesses and/or the gradient of velocities or slownesses, particularly by evaluating wavefield data in the vicinity of turning points (33). The method can be applied sequentially as a survey sinking method.

Abstract: There is provided compounds of formula I, wherein R1, R2, R3, R4, R41 to R46, A, B and G have meanings given in the description, which are useful in the prophylaxis and in the treatment of arrhythmias, in particular atrial and ventricular arrhythmias.

Abstract: A method for the preparation of a compound of formula (1) or a pharmaceutically acceptable salt or solvate thereof; from a compound of the formula: (IV); wherein L represents a leaving group.

Abstract: There is provided compounds of formula I, wherein R1, R2, R3, R4, R41 to R46, A, B and G have meanings given in the description, which are useful in the prophylaxis and in the treatment of arrhythmias, in particular atrial and ventricular arrhythmias.