3 results about "Body water" patented technology

FIELD: medicine.SUBSTANCE: group of inventions relates to a method for multi-frequency bioelectrical impedance analysis and a device for implementing it. Alternating electric current signals are passed through the human body. Each signal has one of three different frequencies. At each frequency, the amplitude of the voltage of the signals passing through the human body is measured. An initial phase angle is selected for each specific impedance module. The phase angle characterizes the phase shift of the current of signals entering the human body relative to the phase of the voltage of signals passing through the human body. At each frequency, the phase angle is estimated using an equivalent electrical model of the human body, the initial phase angle and the impedance modulus. A body model is created for a specific person. The ratio of extracellular water content to total body water content in a human is determined by inputting extracted parameters of the human body model into a trained machine learning model. The device comprises a source of alternating electric current signals, electrodes for conducting and reading signals, a measuring device for measuring signal parameters, a processor and memory.EFFECT: device is compact and has small-area electrodes for integration into wearable and / or portable devices while maintaining measurement accuracy.14 cl, 6 dwg

The present invention is a water-based composition for the body containing the following components: (A) an anionic polymer having a viscosity of 5,000 mPa·s or more at 25°C and having sulfonic acid or sulfuric acid groups in a 2% by mass aqueous solution; (B) one or more selected from water-swellable clay minerals and water-swellable mica with an aspect ratio of 150 or more; and water; and (1) the storage modulus of the above composition, as measured by dynamic viscoelasticity determination at a temperature of 25°C, a frequency of 2 Hz, and a strain of 0.01%, is 60 Pa or more and 5,000 Pa or less; or, the present invention is a water-based composition for the body containing the above components, and (2) the content of the above component (B) is 0.01% by mass or more and 10% by mass or less, and the mass ratio of the above component (A) to the above component (B) [(A) / (B)] is 0.2 or more and 20 or less.

The application relates to the technical field of residual chlorine sampling, and discloses a circulating water residual chlorine sampling device, which comprises a hot well, a residual chlorine meter, a meter body water inlet pipe and a meter body water outlet pipe, and is characterized in that the device further comprises a water taking extension pipe, a booster pump, a pump inlet door, a pump outlet door, a water outlet pipe, a buffer water tank, an overflow pipe and an overflow door; one end of the water taking extension pipe extends to the bottom of the hot well, the other end of the water taking extension pipe is fixedly connected with one end of the pump inlet door; the other end of the pump inlet door is fixedly connected with the inlet of the booster pump, the outlet of the booster pump is fixedly connected with one end of the pump outlet door; the other end of the pump outlet door is fixedly connected with one end of the water outlet pipe, the other end of the water outlet pipe extends to the top of the buffer water tank and is in communication with the inside of the buffer water tank; and the bottom of the buffer water tank is provided with a water inlet. The device can obtain a representative water sample, provides stable sampling power, buffers flow speed, realizes water sample backflow, guarantees detection accuracy and ensures device stability.