Systems and methods are provided for operating an electrolyzer. The systems and methods perform operations comprising obtaining a plurality of impedance measurements of the plurality of electrolytic cells at a plurality of frequencies; tracking changes to the plurality of impedance measurements of the plurality of electrolytic cells over a time period; and generating, based on the changes to the plurality of impedance measurements, a model representing operating conditions of the electrolytic cells on an individual electrolytic cell basis.
C25B 15/025 - Measuring, analysing or testing during electrolytic production of electrolyte parameters
C25B 9/23 - Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
C25B 9/77 - Assemblies comprising two or more cells of the filter-press type having diaphragms
One embodiment is a method of performing thoracic tomography on a human subject including performing multiple 4-wire impedance measurements on a region of interest to obtain measured impedance data; comparing the measured impedance data to simulated impedance data obtained from a plurality of models of the region of interest; for each of the models, determining a fit of the model based on a comparison between the simulated impedance data obtained from the model and the measured impedance data; and integrating individual resistivity estimates obtained from the models based on a fit of the model such that the individual resistivity estimate from a better fitting model is weighted more heavily in a final resistivity estimate than an individual resistivity estimate from a worse fitting model.
Devices, systems, and methods for non-invasively detecting and monitoring medical conditions using multiple modalities of sensing include at least two electrodes configured to be positioned on a subject, an acoustic sensor configured to be positioned on a subject, a thoracic impedance measurement module connected to the electrodes, for measuring a first impedance between the electrodes, and a heart acoustic measurement module connected to the acoustic sensor, for detecting and measuring a heart sound from the acoustic sensor.
The present disclosure provides apparatuses and methods for analyzing the presence of charged analytes and/or the binding force between charged analytes and a capture probe. The apparatuses and methods of the present disclosure can be operated in a multiplexed format to perform various assays of clinical significance for example.
The present disclosure provides methods for packaging a chip and packaged chips in which the chip and packaging are co-planar and gap-less. In certain instances, the packaged chip has electrodes or fluidics integrated with the chip. The method according to the invention comprises placing a chip on a planarizing surface; placing a carrier on the planarizing surface surrounding the chip with a gap between the carrier and the chip; and closing the gap to bond the carrier to the chip by heating the carrier such that the carrier melts or deforms or by contacting the carrier with a solvent such that the carrier dissolves or deforms to close the gap, thereby producing a chip-in-carrier (CiC).
H01L 21/52 - Mounting semiconductor bodies in containers
B81C 99/00 - Subject matter not provided for in other groups of this subclass
H01L 33/48 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor body packages
B81B 7/02 - Microstructural systems containing distinct electrical or optical devices of particular relevance for their function, e.g. microelectro-mechanical systems (MEMS)
ABSTRACT OF THE DISCLOSURE A log-amp or log-ratio circuit for producing a temperature-independent output signal corresponding to the logarithm of the ratio of a pair of input cur- rents. The basic logarithm function is generated by a pair of opposed P-N junctions through which the respec- tive input currents flow. Temperature compensation is effected by a circuit including a second pair of opposed P-N junctions which receive a PTAT current split between the junctions in accordance with a modulation factor pro- portional to the desired logarithmic function. The tem- perature-induced signal variations produced by the PTAT current source are equal and opposite to the temperature- induced signal variations produced in the first pair of P-N junctions, and a temperature-independent output sig- nal is developed in accordance with the modulation factor applied to the PTAT current through the second pair of P-N junctions.
G06G 7/24 - Arrangements for performing computing operations, e.g. amplifiers specially adapted therefor for evaluating logarithmic or exponential functions, e.g. hyperbolic functions
H03F 1/30 - Modifications of amplifiers to reduce influence of variations of temperature or supply voltage
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