There is disclosed a system for monitoring a state of fluid present within a fluid source comprising an apparatus configured to be mounted with respect to the fluid source, and having an inlet in fluid communication with the fluid source; a testing system mounted within the apparatus and configured to obtain a sample of fluid from the fluid source via the inlet and to perform a test of the sample of fluid; an image capture device for capturing an image of the tested sample of fluid; and a controller for controlling the operation of the apparatus so as to coordinate the collection of the sample, the testing of the sample, capture of the image, disposal of the sample and transmission of the image to a remote control centre for analysis and action.

Provided is a method of evaluating electrode quality capable of simply and quickly filtering out defective electrodes by measuring a color coordinate value of electrodes before roll-pressing, which specifically includes: providing an electrode which includes a current collector and an active material layer formed on the current collector and has not been roll-pressed; measuring a color coordinate value of the active material layer using an optical instrument; and evaluating the electrode as a good product when the measured color coordinate value satisfies a predetermined electrode quality evaluation criterion and as defective when the measured color coordinate value does not satisfy the predetermined electrode quality evaluation criterion.

A kit for detecting an inflammation level of an oral cavity based on a biomarker indicative of inflammation, the kit comprising at least one rinsing substance; a cup sized to contain a predetermined amount of at least one rinsing substance; a colourimetric reference corresponding to a predetermined inflammation level, and a colourimetric indicator reactive to the biomarker in the at least one rinsing substance consistently with the colourimetric reference.

The present invention relates to a method for determining a characteristic number for characterizing the quality of a shade setting of a paint in relation to a color reference, characterized in that colorimetric coordinates of the paint and of the color reference are determined with a spectrophotometer for a number of measurement geometries and wherein respective color differences are calculated and standardized from the colorimetric coordinates of the paint and of the color reference for each measurement geometry of the number of measurement geometries, and where a group of characteristic values calculated from the respective standardized color differences is assigned a scale value for determining the characteristic number by means of an assignment rule to be provided in advance.

A method is provided for a portable computing device to read a reaction area on a test strip, which is located in a peripheral device placed over an image sensor and a light source of the portable computing device. Light is provided with the light source, which the peripheral device directs to the reaction area. An image including the reaction area is captured with the image sensor. An analyte characteristic is determined based on a color of the captured reaction area in the image.

A beverage dispenser includes a nozzle to dispense a beverage. The beverage dispenser further includes a camera to capture an image of the beverage as the beverage is dispensed from the nozzle. The camera has a field of view that includes the beverage. The beverage dispenser further includes a light source that illuminates the field of view of the camera. The beverage dispenser further includes a computer. The computer analyzes the image of the beverage and determines a characteristic of the beverage.

A method for manufacturing modified metal nanoparticles includes steps as follows. Metal nanoparticles are provided, wherein each of the metal nanoparticles is a gold nanoparticle or a silver nanoparticle. An ascorbic acid solution is provided, wherein the ascorbic acid solution includes ascorbic acid molecules and/or ascorbic acid ions. A surface modification step is conducted, wherein the metal nanoparticles and the ascorbic acid solution are mixed, such that surfaces of the metal nanoparticles are modified by the ascorbic acid molecules and/or ascorbic acid ions to obtain the modified metal nanoparticles.

An exemplary method of interpreting results indicated on a photographed diagnostic test comprises: sweeping the photographed diagnostic test, or cropped area of the photographed diagnostic test; creating a vector of color values including the color values obtained from a plurality of horizontal pixel positions on the photographed diagnostic test or cropped area of the photographed diagnostic test; identifying the location of the control line and each testing line depicted within the photographed diagnostic test; and calibrating to determine a hormone or analyte level corresponding to a color value of a test line. Systems of interpreting results indicated on a photographed diagnostic test are also provided.

A beverage dispenser includes a nozzle to dispense a beverage. The beverage dispenser further includes a camera to capture an image of the beverage as the beverage is dispensed from the nozzle. The camera has a field of view that includes the beverage. The beverage dispenser further includes a light source that illuminates the field of view of the camera. The beverage dispenser further includes a computer. The computer analyzes the image of the beverage and determines a characteristic of the beverage.

A blood testing assembly and method are described. In the method, a blood testing device having a plasma separation membrane and a reagent is connected to a syringe containing blood having blood cells and plasma. A blood sample of the blood is passed from the syringe through a plasma separation membrane within the blood testing device to separate the plasma from the blood cells. A reagent is saturated with the plasma, and then the reagent is colorimetrically analyzed to determine a degree of hemolysis within the blood sample.