Abstract: Embodiments of the present disclosure include systems and methods for determining position values for training data that is used to train transformer models. In some embodiments, a set of input data for training a transformer model is received. The set of input data comprises a set of tokens. Based on an offset value, a set of successive position values for the set of tokens is determined. Each position value in the set of successive position values represents a position of a token in the set of tokens relative to other tokens in the set of tokens. A set of training data is generated to comprise the set of tokens and the set of successive position values. The transformer model is trained using the set of training data.

Abstract: A patient interface includes a plenum chamber pressurisable to a therapeutic pressure, and a seal-forming structure constructed and arranged to seal with a region of a patient's face surrounding an entrance to a patient's airways. The seal-forming structure is constructed and arranged to maintain the therapeutic pressure in the plenum chamber throughout a patient's respiratory cycle in use. The patient interface also includes a positioning and stabilizing structure configured to hold the seal-forming structure in a therapeutically effective position on a patients head. The positioning and stabilizing structure includes a rear strap arranged to contact an occiput of the patient's head. The rear strap is constructed from a first material is arranged to contact a temporal region of the patient's head, and a second material arranged to contact the occiput of the patients head. The second material is silicone.

Abstract: Embodiments of the present disclosure include systems and methods for packing tokens to train sequence models. In some embodiments, a plurality of datasets for training a sequence model is received. Each dataset in the plurality of datasets includes a sequence of correlated tokens. A set of training data is generated that includes a subset of a sequence of tokens from a first dataset in the plurality of datasets and a subset of a sequence of tokens from a second, different dataset in the plurality of datasets. The sequence model is trained using the set of training data.

Abstract: The invention relates to a method for manufacturing a heat exchanger including stacking a set of plates parallel to one another and to a longitudinal direction so as to define a plurality of passages suitable for the flow in the longitudinal direction of a first fluid to be brought into a heat-exchange relationship with at least a second fluid, said plates being delimited by a pair of longitudinal edges extending in the longitudinal direction and a pair of lateral edges extending in a lateral direction perpendicular to the longitudinal direction, and forming at least one of the plates by superposing at least a first flat product and a second flat product on top of one another, having at least one groove that extends parallel to the plates and leads towards the outside of the stack through at least one opening in a lateral or longitudinal edge.

Abstract: The invention relates to a process and a plant for producing methanol in which a compressed make-up gas stream which contains at least one carbon oxide and hydrogen is combined with a residual gas to afford a synthesis gas stream and reacted to afford methanol. According to the invention the residual gas stream and the make-up gas stream are combined using a jet pump, wherein the compressed make-up gas stream is supplied to the jet pump as motive medium via its motive media connection at a pressure p1 and the residual gas stream is supplied to the jet pump as suction medium via its suction port at a pressure p3 and wherein the synthesis gas stream is discharged from the jet pump via its pressure port at a pressure p2 and subsequently supplied to the synthesis stage and wherein p1>p2>p3.

Abstract: A mixing device for distributing a mixture of a first phase and a second phase of a first fluid in a longitudinal direction in at least one passage of a heat exchanger, said mixing device including at least one lateral channel configured for the first phase to flow from at least one first inlet; a series of longitudinal channels extending in the longitudinal direction and each configured for the second phase to flow from a second inlet to a second outlet, said longitudinal channels succeeding each other in a lateral direction orthogonal to the longitudinal direction; and at least one opening fluidly connecting said lateral channel to at least one longitudinal channel such that the mixing device is configured to distribute a mixture of the first phase and the second phase via the second outlet of said longitudinal channel.

Abstract: The invention relates to a heat exchanger for vaporizing a coolant fluid by heat exchange with a calorigenic fluid, said exchanger comprising several parallel plates defining a plurality of passages between them which are suitable for the coolant fluid or calorigenic fluid to flow, a first wave and a second wave extending between two successive plates so as to define a plurality of channels within the same passage, said first and second waves comprising two adjacent edges, at least one assembly member extending from one edge to the other so as to connect the waves to one another. According to the invention, the assembly member is forcibly engaged in at least one part of a channel of the first wave on one hand, and in at least one part of a channel of the second wave on the other hand.

Abstract: Method and plant for generating a synthesis gas which consists mainly of carbon monoxide and hydrogen and has been freed of acid gases, proceeding from a hydrocarbonaceous fuel, and air and steam, wherein low-temperature fractionation separates air into an oxygen stream, a tail gas stream and a nitrogen stream, wherein the tail gas stream and the nitrogen stream are at ambient temperature and the nitrogen stream is at elevated pressure, wherein the hydrocarbonaceous fuel, having been mixed with the oxygen stream and steam at elevated temperature and elevated pressure, is converted to a synthesis gas by a method known to those skilled in the art, and wherein acid gas is subsequently separated therefrom by low-temperature absorption in an absorption column, wherein the nitrogen stream generated in the fractionation of air is passed through and simultaneously cooled in an expansion turbine and then used to cool either the absorbent or the coolant circulating in the coolant circuit of the compression refrigeratio

Abstract: A heat exchanger having a first and second mixing devices having at least one lateral channel configured in order for a first phase of the first fluid to flow from at least one first inlet; a series of longitudinal channels extending in the longitudinal direction and each configured in order for a second phase of the first fluid to flow from a second inlet to a second outlet, the longitudinal channels succeeding each other in a lateral direction orthogonal to the longitudinal direction; and at least one opening fluidly connecting the at least one lateral channel to at least one longitudinal channel such that the first and second mixing devices are configured to distribute a mixture of the first phase and the second phase via the second outlets of their respective longitudinal channels.

Abstract: Method and plant for generation of synthesis gas, comprising the steps of air fractionation to give oxygen, nitrogen and tail gas, gasification of a hydrocarbonaceous fuel to give crude synthesis gas and cleaning of the crude synthesis gas by removal of acid gas by means of cryogenic absorption, wherein the absorbent is cooled by means of a compression coolant circuit and the cooling water used is cooled by evaporative cooling by means of the tail gas obtained in the air fractionation.

Abstract: The invention relates to a heat exchanger of the brazed plate and fin type comprising a stack of plates arranged parallel to one another and to a longitudinal direction so as to define, between the plates, a plurality of passages suitable for the flow of at least a first fluid in the longitudinal direction, at least one exchange structure of corrugated shape being arranged between two successive plates and having corrugation crests and corrugation troughs connected alternately by a succession of fins.

Abstract: The invention relates to a method for manufacturing a heat exchanger including stacking a set of plates parallel to one another and to a longitudinal direction so as to define a plurality of passages suitable for the flow in the longitudinal direction of a first fluid to be brought into a heat-exchange relationship with at least a second fluid, said plates being delimited by a pair of longitudinal edges extending in the longitudinal direction and a pair of lateral edges extending in a lateral direction perpendicular to the longitudinal direction, and forming at least one of the plates by superposing at least a first flat product and a second flat product on top of one another, having at least one groove that extends parallel to the plates and leads towards the outside of the stack through at least one opening in a lateral or longitudinal edge.

Abstract: The invention relates to a method for manufacturing a heat exchanger of the brazed plate and fin type, including: stacking, with spacing, a set of plates parallel to each other and in a longitudinal direction so as to define, between said plates, a plurality of passages adapted for the flow, in the longitudinal direction, of a first fluid to be brought into a heat exchange relationship with at least one second fluid, said plates being demarcated by a pair of longitudinal edges extending in the longitudinal direction and a pair of lateral edges extending in a lateral direction perpendicular to the longitudinal direction.

Abstract: A process for producing synthesis gas using at least a first and a second steam reforming reactor each having at least one reaction stage enabling the circulation of a reaction mixture and at least one heat supply stage enabling the circulation of a heat transfer fluid.

Abstract: Certain embodiments of the invention relate to a spacer element for a heat exchanger of the brazed plate and fin type, intended to be fitted between a first plate and a second plate of the exchanger, said spacer element comprising at least a first assembly portion configured to be assembled with the first plate and comprising a first pair of opposite surfaces, one of the surfaces of the first pair being oriented toward the first plate and the other of the surfaces of the first pair being oriented toward the second plate when the spacer element is in the fitted state, several fins or corrugation legs extending from said first assembly portion so as to delimit, when the spacer element is in the fitted state, a plurality of channels for the flow of a first fluid, and at least one surface texturing in the form of a porous structure or of reliefs formed on the surface of the spacer element, at least one fin or corrugation leg exhibiting said surface texturing.

Abstract: A clutch device includes an outer disk carrier, outer disks, an inner disk carrier, inner disks, and at least one lug. The outer disk carrier has first axially running grooves, a first edge, and a first edge side. Each of the outer disks has radial projections spaced apart by depressions and projecting into the first axially running grooves. The inner disk carrier has second axially running grooves, a second edge, and a second edge side. Each of the inner disks has radial projections spaced apart by depressions and projecting into the second axially running grooves. The lug is arranged between two grooves of the first axially running grooves and extending axially from the first edge side, or arranged between two grooves of the second axially running grooves and extending axially from the second edge side.

Abstract: A process for conducting exothermic equilibrium reactions, especially for the performance of methanol synthesis by heterogeneously catalysed conversion of synthesis gas, is proposed, which enables readjustment and hence optimization of the reaction conditions along the longitudinal coordinate of the reactor. For this purpose, in the process according to the invention, a reactor is used which is divided into a multitude of series-connected reaction cells, each of which comprises a preheating zone, a cooled reaction zone, one or more cooling zones and a deposition zone for condensable reaction products. In this way, the reaction conditions are adjustable to the respective, local composition of the reaction mixture and variable over the reactor length.

Abstract: A reactor for conducting exothermic equilibrium reactions, especially for the performance of methanol synthesis by heterogeneously catalysed conversion of synthesis gas, is proposed, which enables readjustment and hence optimization of the reaction conditions along the longitudinal coordinate of the reactor. For this purpose, in accordance with the invention, the reactor is divided into a multitude of series-connected reaction cells, each of which comprises a preheating zone, a cooled reaction zone, one or more cooling zones and a deposition zone for condensable reaction products. In this way, the reaction conditions are adjustable to the respective, local composition of the reaction mixture and variable over the reactor length.

Abstract: The invention relates to an exchanger-reactor comprising at least three stages with at least one stage comprising both: millimetric channels at least partially covered with a catalyst for stimulating a steam reforming reaction, and millimetric channels at least partially covered with a catalyst for stimulating a water gas reaction.

Abstract: The invention relates to a heat exchanger for vaporizing a coolant fluid by heat exchange with a calorigenic fluid, said exchanger comprising several parallel plates defining a plurality of passages between them which are suitable for the coolant fluid or calorigenic fluid to flow, a first wave and a second wave extending between two successive plates so as to define a plurality of channels within the same passage, said first and second waves comprising two adjacent edges, at least one assembly member extending from one edge to the other so as to connect the waves to one another.