Abstract: Certain embodiments may generally relate to structural damage detection. An embodiment may be directed to method for identifying a presence and a location of structural damage. Such method may include training a convolutional neural network (CNN) for a joint of a structure, sending instructions to a modal shaker to induce an input to the structure, receiving, as a result of the induced input, a raw acceleration signal at the joint, computing, based on the trained CNN and the raw acceleration signal, an index value of the joint, and identifying, according to the index value, a presence of a location of structural damage of the structure. In a further embodiment, the index value represents a likelihood of damage at the joint.

Abstract: A dynamic mechanical analysis system provides an actuator that imparts expansion and contraction forces (e.g. shear force) to a viscoelastic material at high frequencies. Such high frequency analysis allows for the direct and accurate measurement of the characteristics of the material at high expansion/contraction frequencies directly, without the use of additional predictive analysis techniques, such as time-temperature superposition. The system also utilizes a clamping system, whereby two different sections of the viscoelastic material are held in place between by a pair of fixed clamps and a force member that is moved by the actuator. As such, the system is able to subject the viscoelastic material sample to simulated “road” conditions to identify various performance properties associated with the material sample.

Abstract: For measuring rheological properties of a liquid sample, the sample is attached to two sample attachment surfaces opposing each other in a pulling direction. The sample attachment surfaces and the liquid sample attached thereto are arranged in a field of view of a light microscope and imaged onto an electronic camera by means of an objective lens of the light microscope. One of the two sample attachment surfaces is pulled away from the other one in the pulling direction, while a plurality of images of the sample attachment surfaces and the sample attached thereto are registered with the camera. For different distances of the two sample attachment surfaces, both a diameter of the liquid sample in a middle between the two sample attachment surfaces and the respective distances of the two sample attachment surfaces are determined from the images registered with the electronic camera during the step of pulling.

Abstract: This invention provides methods and devices to measure particle suspension concentrations in the presence of potential interferents. Particle back-scatter readings are taken at light wavelengths that are absorbed by the medium before interacting with surrounding objects. Source-detector spacings are minimized compared to the mean absorbance path length of light, thereby maximizing the range of sensitivity to particle concentration. Discrimination against potentially interfering particles, such as bubbles, is provided by mapping the signal distribution against the central signal value and/or by the use of statistical measures with reduced dependence on outliers. The methods and devices allow accurate particle concentration readings over a wide range of concentration in environments crowded with potentially interfering objects and in the presence of variable concentrations and sizes of potentially interfering particles.

Abstract: Provided is a gel particle measuring apparatus for detecting scattered light generated by light irradiation at a production start time point of a gel particle, and performing measurement promptly and accurately while suppressing attenuation of the scattered light in a solvent in which the phenomenon occurs.

Abstract: An analyzing apparatus includes a collection filter, a two-dimensional sensor, and a calculation unit. The collection filter collects fine particulate matter included in the air. The two-dimensional sensor obtains collection image data including a collection area of the collection filter in which the fine particulate matter is collected. The calculation unit calculates data relating to content of the colored particulate matter included in the collection area based on the collection image data.

Abstract: A continuous alpha monitor includes an air intake mechanism, which in turn includes an air mover and an air flowrate monitor, an air intake prefilter that limits particulates in the air intake mechanism to an aerodynamic diameter of 10 microns or less, and a particle size detector mounted downstream of the air intake prefilter, the air particle size detector providing an airborne dust concentration and a first distribution of aerodynamic diameters of particulates in air passing the prefilter, the particulates including depleted uranium particulates. The monitor further includes a sample filter web that collects the particulates; a solid state detector that detects alpha radiation emitted by the collected particulates; a processor that executes machine instructions embodied on a non-transient computer-readable storage medium to compute a dust loading on the sample filter web; and the processor computes an indication of alpha concentration detected by the detector mechanism.

Abstract: A failure detection device has a PM filter, a PM detection sensor having a sensor element arranged at a downstream of the PM filter, an ECU and a PM detection sensor control part. The sensor element detects an amount of PM in exhaust gas, and generates a sensor signal corresponding to the detected PM amount. A load detection part in the ECU detects an engine load. A judgment execution determination part in the control part compares the detected engine load with a threshold value, and determines whether a PM filter failure detection should be performed based on the comparison result. A failure judgment part compares the sensor signal with a failure judgment threshold value when the determination part decides that it is necessary to perform the failure detection of the PM filter, and determines that the PM filter failure has occurred based on the latter comparison result.

Abstract: A microfluidic device for detecting rare cells in a fluid sample comprises the rare cell and other cells. The microfluidic device comprises an inlet for receiving the fluid sample, a labyrinth channel structure in fluid communication with the inlet, and an outlet in fluid communication with the labyrinth channel structure for collecting the rare cells separated from the other cells in the fluid sample. The labyrinth channel structure comprises at least one channel through which the fluid sample flows. The at least one channel has a plurality of segments and a plurality of corners with each corner defined between adjacent segments. The presence of the plurality of corners induces separation of the rare cells from the other cells in the fluid sample as the rare cells move to a first equilibrium position within the at least one channel when a ratio of inertial lift forces (FZ) and Dean flow (FD) of the fluid sample is from 2 to 10.

Abstract: Provided is a monitoring device having a control part for monitoring, wherein the control part for monitoring has a first data processing part, a second data processing part, and an indication value output part. The first data processing part generates, as indication values for optical axis adjustment, the first indication value showing the intensity of a light-receiving signal obtained from the particle analysis apparatus. The second data processing part generates, as indication values for gain adjustment of the light-receiving signal, the second indication value showing the intensity of a light-receiving signal obtained from the particle analysis apparatus, which is different from the aforementioned first indication value. The indication value output part outputs the first and second indication values to a display device.

Abstract: Methods and systems for efficient contour and gating in flow cytometry are provided. Event data is compressed to reduce the number of points needed to represent polygon contours for the event data. Selection of a level within the contour then causes the generation of a gate. This allows limited resource devices, such as touchscreen wireless devices, to render and gate flow cytometry data in a resource efficient manner.

Abstract: In the operation of analytical devices, and particularly laser induced breakdown spectroscopy (LIBS) devices, a number of advantages may be obtained by the use of complementary safety mechanisms, such as those that govern the operation or firing of a laser. Such complementary safety mechanisms, compared to the individual safety mechanisms acting alone, prevent operation of the laser under a greater number of unsafe circumstances (even if one or more detected conditions are safe, based on not activating the associated safety mechanism) and permits operation under a greater number of safe circumstances (even if one or more detected conditions are unsafe, based on activating the associated safety mechanism).

Abstract: Cuvette, comprising at least one measuring area on each one of two arms that are pivotally connected to each other such that from a swung-apart condition, they can be swung together into a measuring position in which the two measuring areas have a distance for positioning a sample between the measuring areas, and means for positioning the two arms in a measuring position in a cuvette shaft of an optical measuring device with a sample between the two measuring areas in a beam path of the optical measuring device that crosses the cuvette shaft.

Abstract: Disclosed is an apparatus for and method of measuring the concentration of F2 in the laser gas used in an excimer laser. Quartz Enhanced Photoacoustic Spectroscopy is used to obtain a direct measurement of F2 concentration quickly and using only a small sample volume.

Abstract: The present invention provides an optical method for predicting treatment response, survival and recurrence of esophageal cancer patients, comprising analyzing the spectral signatures of patient's tumor tissue spectra. By the features of the present invention, the prediction result achieves the sensitivity of 75% and specificity of 73.3% in concurrent chemoradiotherapy (CCRT) response; the survival prediction rate achieves the sensitivity of 100%; the recurrence prediction rate achieves the sensitivity of 85.7%.

Abstract: The invention relates to an optical system for measuring the absorption of light in a medium, comprising at least one light source for sending light and at least one optical detector, which receives the light and converts it into an electrical signal. The system is characterized in that the system comprises at least one light guide, wherein, in the region of the light source, light is coupled as reference light into the light guide, wherein the light guide is guided, at least in sections, past the medium, and wherein the light guide guides the reference light onto the detector.

Abstract: A gas analysis apparatus includes a calibration curve data storage section designed to store N types of calibration curve data which are previously created for N types of measurement target components and obtained by correcting influences of other N-1 types of measurement target components with respect to a concentration of each of the measurement target components, and a concentration calculation section designed to calculate a concentration of each of the measurement target components by using the N types of calibration curve data. When there exists a subthreshold component whose concentration calculated by the concentration calculation section is not more than a predetermined threshold value, the concentration calculation section calculates a concentration of each of the measurement target components other than the subthreshold component by using calibration curve data obtained without correcting an influence of the subthreshold component.

Abstract: An explosives detector includes an infrared sampler having a flat infrared radiation source suitable for release of a solid explosive sample from a surface of a scanned subject using a wavelength of an infrared radiation, and a thermal decomposition unit having a silica glass tube with a silica glass tube gas inlet located in the flat infrared radiation source, wherein the silica glass tube is equipped with a heating element, the thermal decomposition unit being suitable for decomposing the solid explosive sample into a plurality of explosive molecular fragments.

Abstract: To provide a method of measuring a state of concrete capable of easily determining or measuring deterioration of the concrete without using a spectroscopy while maintaining the estimation accuracy. The method of the present disclosure emits an irradiation light to the concrete, the irradiation light including a wavelength range of near infrared light related to concrete measurement; and receives a reflection light of the irradiation light P reflected on the concrete. The method determines at least five wavelengths ?1 to ?5, ?6 to ?10, different from each other by PLS regression analysis within a wavelength range of 900 nm to 2500 nm of absorption spectrum, and estimates a degree of neutralization of the concrete caused by calcium hydroxide and a concentration of chloride ion.

Abstract: A spectroscopy system and method in which the optical path following the interferometer includes a Jacquinot stop having an aperture disposed substantially at its focal point. The Jacquinot stop includes a reflective surface substantially non-orthogonal to the longitudinal axis of the path and facing the source of the IR signal containing an interferogram. The aperture passes an inner portion of the incident IR signal, while the reflective surface reflects an outer portion. The reflected outer portion of the incident IR signal, which contains erroneous spectral information due to inherent flaws in the interferometer optics, is thereby effectively removed from the original incident IR signal ultimately used to irradiate the sample, and yet still be made available for use in monitoring background spectra of the sampling optics.

Abstract: Terahertz (THz) or millimeter wave (mmW) band characterization of a differential-mode device under test (DUT) is performed using a non-contact probing setup based on an integrated circuit that includes the on-chip DUT and an on-chip test fixture as follows. A differential transmission line pair is operatively coupled with the DUT. A first differential antenna pair at a first end of the transmission line pair has a first antenna connected only with the first transmission line and a second antenna connected only with the second transmission line. A second differential antenna pair is likewise connected with a second end of the differential transmission line pair.

Abstract: A measuring device includes: a light source that emits, toward a target part of an object, at least one light pulse group each including light pulses emitted sequentially, a photodetector that detects at least a part of at least one reflected light pulse group and including reflected light pulses sequentially returning from the target part, and a control circuit that controls the light source and the photodetector. The control circuit causes the light source to emit the at least one light pulse group within a first period, causes the photodetector to extract, within the first period, a first component that is a component of light included in at least a part of a leading reflected light pulse of the reflected light pulses, and causes the photodetector to output a first electric signal corresponding to the first component.

Abstract: A reflective materials sensor for detecting remotely located reflective material. The reflective materials sensor includes a transparent window with two window surfaces, an amount of reflective material that is remotely located away from one window surface. An operating parameters sensor located adjacent to the transparent window, a radiation detector located away from the other window surface; and two spaced apart radiation emitters located on either side of the radiation detector, and away from the second window surface. Each radiation emitter is configured to emit radiation along one axis through the transparent window towards the reflective material and towards a common focal point. The radiation detector is located to receive reflected radiation from the reflective material along another axis. The first axis of the radiation emitters is angled towards the other axis of the reflected radiation.

Abstract: Microstructures and nanostructures (100) consisting of a substrate (110), an array of pillars (120) capped by metallic disc (130), metallic dots (clusters or granules) (140) disposed on the sidewalls of the pillars, and a metallic backplane (150) that can interact to enhance a local electric field, the absorption of the light, and the radiation of the light are disclosed. Methods to fabricate the structures (100) are also disclosed.

Abstract: An optical sensor for the ascertainment within a medium of a measured value of a measured parameter of process automation technology, comprising: a light source for transmitting transmission light; a prism; and a receiver for receiving reception light and generating a reception signal therefrom, wherein the measured value is ascertainable from the reception signal, wherein a first optical path from the light source to the medium is defined at least via the prism, wherein a second optical path from the medium to the receiver is defined at least via the prism, wherein the transmission light passes through the prism and is transformed within the medium into reception light, which passes through the prism to the receiver, and wherein the first optical path and the second optical path are essentially parallel to each other.

Abstract: Apparatus and method for Raman-spectrography based measurement of the composition of gas mixture in a high-temperature borehole. The method includes any of determining molar densities of individual alkanes of the mixture, introducing refractive index corrections, utilization of reference species internally to the measurement apparatus, correction for the effect of self-absorption and cross-absorption, as well as minimizing fluorescence when a liquid fraction is present in the borehole. The apparatus is configured to detect vibrational bands of CH, OH, CC, HS, NN and CO functional groups as well as collective modes in the fingerprint spectral region.

Abstract: A biological specimen containing a chemiluminescence substance that generates chemiluminescence is observed in a living state under a microscope. The microscope includes a light source that outputs control light that changes the state of the chemiluminescence, a defining unit that defines the radiation pattern of the control light with which an observation surface of the biological specimen is irradiated, and a detector that detects the chemiluminescence from the biological specimen.

Abstract: A diffractive biosensor for selective detection of biomolecules includes a substrate and a flat waveguide disposed on the substrate. The waveguide has an optical grating configured to couple incident light into the waveguide such that the light is guided through the waveguide to a detection region located behind an edge of the waveguide. The in-coupling efficiency and intensity of the light arriving in the detection region are dependent on a surface coverage of the optical grating with the biomolecules to be detected. The optical grating has receptors for the biomolecules periodically arranged on the waveguide. The light incident on the optical grating is collimated.

Abstract: A deformation verification system of a vehicle body includes a dip tank in which fluid is contained. The dip tank has a transparent window from the outside to see the inside. A moving device is configured to lower the vehicle body into the fluid, to move the vehicle body in the fluid and to raise the vehicle body. A camera is installed to detect the form of the vehicle body through the transparent window.

Abstract: An on-wafer calibration device comprises on a substrate at least a first measuring port, at least a first switch element, at least two calibration standards, and a controller unit or a control interface for control of the first switch element. The first switch element is controlled in a manner that it selectively connects a wafer probe tip connectable to the first measuring port to the at least two calibration standards.

Abstract: An optical guide assembly for obtaining images of one or more exposed surfaces of an article that are at least partially immersed in a fluid. The optical guide assembly includes one or more sources of light, a camera, and an optical guide made of an optical medium. The light from the light source is reflected from the exposed surface to provide an initial light transmitted into the optical guide in a direction substantially orthogonal to a first surface thereof. The initial light is transmitted from the first surface through the optical medium to a second surface of the optical guide having a mirror thereon, to be reflected therefrom to provide a reflected light. The reflected light reflected from the second surface passes through a third surface of the optical guide substantially orthogonally thereto to the camera.

Abstract: A method and system are disclosed for producing an x-ray image of a sample using a lamella-shaped target to improve the usual tradeoff between imaging resolution and image acquisition time. A beam of electrons impacts the lamella-shaped target normal to the narrower dimension of the lamella which then determines the virtual source size along that axis. For low-energy x-ray generation, the small electron penetration depth parallel to the wider dimension of the lamella determines the virtual source size along that axis. Conductive cooling of the target is improved over post targets with the same imaging resolution. The lamella-shaped target is long enough to ensure that the electron beam does not impact the support structure which would degrade the imaging resolution. Target materials may be selected from the same metals used for bulk or post targets, including tungsten, molybdenum, titanium, scandium, vanadium, silver, or a refractory metal.

Abstract: Circuitry for converting frame data outputted from an obliquely arranged detector, to frame data in a coordinate system for reconstruction is avoided from becoming larger in size and an processing amount is reduced. An X-ray apparatus is provided with a two-dimensional pixel array, the two-dimensional pixel array having a plurality of rectangular pixels, having a predetermined size and outputting an electrical signal in response to an incident X-ray photon. The pixels of the array are arranged in the row and column directions in a first Cartesian coordinate system. The row direction is set obliquely to a scan direction.

Abstract: An apparatus for x-ray inspection of a tubular member. The apparatus has a frame comprised of first and second axially spaced split side sections which can be positioned around the tubular member. There is a carousel rotatable mounted on the frame which, like the frame members, is made of split side members which can be positioned around the tubular member. There is an x-ray source and a flat panel x-ray detector mounted on the carousel at a desired circumferentially spaced distance from one another. A driver is mounted on the frame and operatively connected to the carousel to rotate the carousel relative to the frame.

Abstract: A method and system for a vehicle inspection system. The vehicle inspection system comprises a mobile inspection device, a display system for the mobile inspection device, a graphical user interface configured to be displayed on the display system, and a controller configured to operate with the mobile inspection device. The controller is configured to identify a position of the mobile inspection device within a vehicle. The controller is configured to identify a set of notes in a field of view of the mobile inspection device for the position of the mobile inspection device. The controller is also configured to display the set of notes on the graphical user interface on the display system.

Abstract: Methods and systems for performing measurements of semiconductor structures based on high-brightness, polychromatic, reflective small angle x-ray scatterometry (RSAXS) metrology are presented herein. RSAXS measurements are performed over a range of wavelengths, angles of incidence, and azimuth angles with small illumination beam spot size, simultaneously or sequentially. In some embodiments, RSAXS measurements are performed with x-ray radiation in the soft x-ray (SXR) region at grazing angles of incidence in the range of 5-20 degrees. In some embodiments, the x-ray illumination source size is 10 micrometers or less, and focusing optics project the source area onto a wafer with a demagnification factor of 0.2 or less, enabling an incident x-ray illumination spot size of less than two micrometers.

Abstract: Examples of nano-level evaluation of kerogen-rich reservoir rock are described. A micro-scale beam is formed from kerogen-rich reservoir rock. The beam has reservoir rock and kerogen, which has polymeric properties. A maximum dimension of the micro-scale beam is at most 1000 micrometers. A mechanical experiment that includes a tension test or a compression test is performed on the micro-scale beam. The mechanical experiment is imaged using a scanning electron microscope (SEM). A material parameter of the kerogen in the micro-scale beam is determined based on results of the mechanical experiment and images obtained responsive to the imaging. The material parameter includes a behavior of the kerogen in response to the mechanical experiment. The behavior of the kerogen can be used to determine, among other things, the energy required to break kerogen in a kerogen-rich shale to improve hydraulic fracturing efficiency.

Abstract: This substitution site measuring equipment using an electron beam analyzes, with high precision, the structure of a substitution site in a micrometer- to nanometer-order region, by reducing or vanishing the X-ray intensity of diffraction X-rays generated in a specimen. The substitution site measuring equipment measures a substitution site in a crystal by detecting, by means of an X-ray detector, X-rays generated from a specimen upon irradiation of the specimen with an electron beam.

Abstract: A temperature control system includes first and second temperature control devices. In the first temperature control device, a refrigeration circuit of a refrigeration device, which is positioned downstream of an expansion valve and upstream of an evaporator, and a brine circulation path of a brine circulation device, which is positioned on a heating unit, constitutes a refrigeration capacity adjustment mechanism, and cooling is performed by the evaporator of the refrigeration circuit. In the second temperature control device, a refrigeration device includes an injection circuit that bypasses a condensed refrigerant upstream of a compressor, and a hot gas circuit that bypasses a compressed high-temperature refrigerant upstream of a compressor. A part of the brine circulation path of the brine circulation device and an evaporator of the refrigeration device constitute a heating capacity adjustment heat exchanger, and heating or cooling is performed by a load unit of the brine circulation path.

Abstract: Systems and methods electronic barcoding of particles. The methods comprise: performing operations by a spin coater to spin coat a single layer of particles onto a substrate; performing operations by a heat applicator to apply heat to the substrate so as to evaporate a liquid; and performing operations by at least one material depositor to transform the particles into Electronically Barcoded Particles (“EBPs”). EBPs are fabricated by: coating a portion of each said particle of the particles with a first conductive layer; depositing an insulative layer on the first conductive layer; and/or depositing a second conductive layer on the insulative layer so as to form a parallel plate capacitor on the particle. The parallel plate capacitor is tuned so that the particle has a capacitance that is different than the capacitances of other ones of the electronically barcoded particles.

Abstract: Systems and methods are provided for detecting liquid in a textile article using one or more flexible sensors integrated in the textile article. The sensor data is forwarded to a computing device via a communication link by an interface element associated with the textile article. The computing device detects a location of liquid in the textile article proximate to the one or more flexible sensors based on a determination that a criterion is met.

Abstract: An electrode includes a conductor, an insulator, and a housing. The insulator is positioned at least partially around the conductor. The housing is positioned at least partially around the conductor. An upper surface of the insulator may be at least partially concave, an outer surface of the housing may have a groove formed therein, or both.

Abstract: An electrode tip including one auxiliary cell and a plurality of measurement cells on a substrate, where the auxiliary cell includes a reference electrode, a counter electrode, and an auxiliary cell-side working electrode, the measurement cell includes a driving electrode and a measurement cell-side working electrode, and the auxiliary cell-side working electrode and the measurement cell-side working electrode are electrically connected.

Abstract: A method for detecting a presence and/or a concentration of a target substance in a reagent solution using enzyme-linked immunosorbent assay (ELISA) includes binding the target substance directly or indirectly to an electrode, and binding a detection agent directly or indirectly to the bound target substance. The method further includes modulating a pH of only a portion of the reagent solution in which the bound target substance and the bound detection agent are located using the electrode, the modulated pH of the portion of the reagent solution causing the bound detection agent to undergo a change, and detecting the change in the bound detection agent. The detected change corresponds to the presence of the target substance in the reagent solution and/or the concentration of the target substance in the reagent solution.

Abstract: Methods and apparatus for detecting an analyte using fluorinated phthalocyanines is disclosed herein. A method for detecting an analyte includes illuminating an analyte solution which contacts an electrode comprising a conductive material having a photosensitizer coupled thereto to generate a reactive oxygen species, wherein the photosensitizer is a fluorinated pthalocyanine having a metal or a non-metal center, oxidizing an analyte present in the analyte solution with the reactive oxygen species to form an oxidized analyte, and detecting a current resulting from the reduction of the oxidized analyte at the electrode.

Abstract: The present invention relates to disposable test sensors having improved sample application and measuring properties and their uses for detection, preferably, quantitative measurement, of analyte in a liquid sample like blood. In particular, the invention provides for an electrochemical biosensor which has a thin-layer fluid chamber having funnel-like shape with a novel extra wide opening as sampling entrance and a vent opening at the tip of the chamber for air escape. The thin-layer fluid chamber provides a reservoir from which a sample fluid can be drawn into it through capillary action. The extra wide sampling entrance provided by the present invention can draw blood into the chamber through any part of the opening, thus it allows easy targeting the samples with small volume, picking up smeared samples and it is more tolerant to users who jam the tip of the sensor into users' finger.

Abstract: A biosensor includes a base substrate; an electrode layer disposed on a main surface of the base substrate and including first and second electrode pairs, each pair including a working electrode and a counter electrode; a spacer substrate on the electrode layer and having first and openings, the first opening exposing a part of the first electrode pair and the second opening exposing a part of the second electrode pair; a first reagent layer containing a first reagent reactive with a sample and disposed in the first opening; a second reagent layer containing a second reagent reactive with the sample and disposed in the second opening; and a top cover substrate on the spacer substrate, the top cover substrate including an introduction portion having at least one introduction opening, the introduction portion overlapping a part of the first opening in the spacer substrate and a part of the second opening.

Abstract: Ion sensor based on differential measurement comprising an ISFTET-REFET pair wherein the REFET is defined by a structure composed of an ISFET covered by a microreservoir where an internal reference solution is contained. The sensor comprises a first and a second ion-selective field effect transistor, an electrode, a substrate on the surface whereof are integrated the two transistors, connection tracks and the electrode and a structure adhered on the first ion-selective field effect transistor which creates a microreservoir on the gate of said first transistor, with the microreservoir having a microchannel which connects the microreservoir with the exterior and the microreservoir being filled with the reference solution.

Abstract: Methods and apparatus relating to very large scale FET arrays for analyte measurements. ChemFET (e.g., ISFET) arrays may be fabricated using conventional CMOS processing techniques based on improved FET pixel and array designs that increase measurement sensitivity and accuracy, and at the same time facilitate significantly small pixel sizes and dense arrays. Improved array control techniques provide for rapid data acquisition from large and dense arrays. Such arrays may be employed to detect a presence and/or concentration changes of various analyte types in a wide variety of chemical and/or biological processes. In one example, chemFET arrays facilitate DNA sequencing techniques based on monitoring changes in hydrogen ion concentration (pH), changes in other analyte concentration, and/or binding events associated with chemical processes relating to DNA synthesis.

Abstract: The present disclosure relates to a method for operating a measurement site for determining at least one measurand of a medium, wherein the measurement site has at least one sensor unit, in contact with the medium, for detecting measured values, and an operating unit with a display element, wherein the sensor unit is connected wirelessly or by wire to the operating unit for communication, wherein the method includes the steps of determining a first value that represents a remaining time span up to a specified time point for a maintenance measure to be performed on the sensor unit; determining a second value that represents a current state of the sensor unit; determining a third value, based at least upon the first and second values, that represents a recommended action with regard to the sensor unit; and displaying the third value or a symbol derived therefrom, or a signal derived from the third value, by means of the display element.