Abstract: A color measurement apparatus to which a colorimeter that measures a color of a color measurement target is configured to be attached in a state in which a color measurement portion is in contact with the color measurement target, includes a carriage that supports the colorimeter, and a scanning mechanism portion that causes the carriage to perform scanning, in which the carriage supports the colorimeter such that the color measurement portion protrudes from a bottom surface of the carriage in a protruding direction toward the color measurement target in a state in which the colorimeter is supported.

Abstract: A color measurement apparatus to which a colorimeter that measures a color of a patch of a color measurement target is configured to be attached includes a support base that supports the color measurement target, a carriage that supports the colorimeter, a scanning mechanism portion that causes the carriage to perform scanning on the support base, and a control portion that controls the scanning mechanism portion, in which the carriage includes a support portion that has an opening portion that exposes a color measurement portion from the carriage in a state in which the colorimeter is supported, and a first measurement portion and a second measurement portion that are provided to interpose the opening portion, and the control portion specifies a position of the patch by measurement results of a measured portion by the first measurement portion and the second measurement portion.

Abstract: A method of performing color calibration of a multispectral image sensor (MIS) includes obtaining test measurement data of at least one color chart that is measured by a test MIS under at least one lighting environment, obtaining reference measurement data of the at least one color chart that is measured by a reference MIS under the at least one lighting environment, the reference MIS being calibrated in advance, and generating, based on the test measurement data and the reference measurement data, at least one transformation model configured to transform measurements between the test MIS and the reference MIS.

Abstract: A color measurement apparatus to which a colorimeter that measures a color of a color measurement target is configured to be attached, includes a support base of the color measurement target, a carriage that supports the colorimeter, a gantry that supports the carriage, a first scanning mechanism that causes the carriage to perform scanning in a first direction on the support base, and a second scanning mechanism that causes the gantry to perform scanning in a second direction, in which the first scanning mechanism includes a first motor that generates a driving force for causing the carriage to perform scanning in the first direction, and a first transmission mechanism portion that transmits the driving force from the first motor to the carriage, and the first motor overlaps the gantry in a third direction.

Abstract: The present application discloses various embodiments of a high-resolution spectrograph. In one embodiment, the high-resolution spectrograph includes a light source, a housing, at least one adjustment device secured to the housing, and an optical detector secured to the adjustment device. At least one dispersive optical element is positioned in optical communication with the light source and the optical detector, wherein the dispersive optical element is configured to diffract at least a portion of an incident optical signal from the light source as a diffracted optical signal propagating toward the optical detector, wherein the optical detector is configured to measure at least one property at least one wavelength component of the diffracted optical signal. The adjustment device is configured to change the position of the optical detector relative to the dispersive optical element to optimize the image width of the wavelength component of the diffracted optical signal.

Abstract: A user device includes a spectrometer module adapted to acquire spectral information and output spectral data representing the acquired spectral information, memory adapted to store predetermined calibration data, a processing unit configured to substantially correct the spectral data using the stored calibration data and an electronic circuit module, The electronic circuit module includes a light sensitive area for detecting incident light of a plurality of wavelengths within a set wavelength interval, detected light of a plurality of wavelengths forming spectral data and the light sensitive area including a plurality of light detectors. Each light detector is adapted to detect light of a selected wavelength.

Abstract: A colorimetric compliance control device includes a electronic communication device, a non-transitory computer readable medium, an electronic controller. The electronic communication device is programmed to electronically receive colorimetric information regarding a vehicle component. The non-transitory computer readable medium electronically stores a non-transitory computer learning model using the colorimetric information acquired by the detector as a first input. The non-transitory computer learning model generates a colorimetric value as an output value related to the colorimetric information. The electronic controller is programmed to compare the output value with a predetermined exemplary value. The electronic controller is programmed to determine when the output value deviates from the predetermined exemplary value.

Abstract: A control method of a color measurement apparatus including a support base, a colorimeter, a carriage that supports the colorimeter, and a scanning mechanism portion that causes the carriage to perform scanning on the support base, includes a color measurement step of performing color measurement by the color measurement portion, by moving the carriage from the color measurement target in a height direction and separating the color measurement portion from the color measurement target from a state in which the color measurement portion is in contact with the color measurement target, at a plurality of positions having different gaps between the carriage and the color measurement target in the height direction, and a calculation step of calculating an adjustment value for determining a setting position of the carriage in the height direction based on a color measurement result in the color measurement step.

Abstract: Provided is a thermal type detection element that enables high sensitivity and high speed response while reducing the size of the element. A thermoelectric conversion element 10 includes: a substrate 11; a thin film thermoelectric conversion layer 12 that is stacked on the substrate 11; a first electrode 13 on a high temperature side that is disposed on one surface of the thermoelectric conversion layer 12; a second electrode 15 on a low temperature side that is disposed on the other surface of the thermoelectric conversion layer 12; and an absorption layer 18 that is stacked in contact with the one surface of the thermoelectric conversion layer 12 and absorbs heat received from the outside.

Abstract: The invention relates to measuring climate inside a longitudinal cavity of a structure from two or more positions. The cavity has two ends that may be ends open to a surface of the structure, or closed ends inside the structure, or a building comprising the structure. The climate is measured by an arrangement inserted to the cavity. The arrangement comprises plurality of interconnectable sections. The sections comprise at least one sensor section and one or more extension sections. The at least one sensor section and one or more extension sections are interconnectable in a series for insertion inside the cavity. The at least one sensor section is configured to measure at least one quantity indicating the climate. The one or more extension sections are configured to position the at least one sensor section from at least one of the ends of the cavity to a measurement position within the cavity.

Abstract: A semiconductor device includes a constant current source, a current mirror circuit, a temperature detection circuit, a reference voltage generation circuit, and a comparison circuit. The current mirror circuit copies a current from the constant current source to thereby generate a copied current. The temperature detection circuit includes a temperature detection diode and a temperature detection voltage generation circuit connected in series with the temperature detection diode, and outputs a temperature detection voltage based on the copied current. The reference voltage generation circuit generates a reference voltage based on the copied current. The comparison circuit outputs a temperature detection signal on the basis of a result of comparing the temperature detection voltage with the reference voltage. The temperature detection voltage generation circuit and the reference voltage generation circuit have the same characteristics.

Abstract: Disclosed herein are thermal sensor devices including TMOS devices with a mass suspended over a cavity by springs extending between a frame and the mass. The thermal sensor devices include stoppers that limit upward and/or downward movement of the springs and therefore the mass. These stoppers are formed from sidewalls supporting a top cap over the frame, springs, and mass. The stoppers are constructed by using various overlapping metal layers during fabrication. Details of forming the stoppers using these overlapping metal layers are contained here.

Abstract: A temperature sensor includes a first trimming resistor having a first resistance value that is trimmed based on a first trimming code and configured to adjust a gate voltage, a MOS transistor turned on based on the gate voltage and configured to drive a variable voltage having a voltage level set for each sensing temperature, and a second trimming resistor connected to the MOS transistor, the second trimming resistor having a second resistance value that is trimmed based on a second trimming code.

Abstract: An oven device with internal meat thermometer is provided. The device is primarily comprised of an improved oven that allows a user to monitor the temperature of food within the interior space of the oven of the device. More specifically, the device allows a user to monitor the internal temperature of food cooking in the oven via at least one temperature probe that can be inserted into food cooking in the oven. The temperature reading of the probe is then displayed on an external display of the oven.

Abstract: A method and a system for temperature measurement of fluid in a pipe, an electronic device and a storage medium are provided, and relates to the technical field of temperature measurement in a pipe. The method includes: determining fixed parameters of an object to be measured, a flow rate of the fluid, a noise variance and an observation variance; determining a predicted temperature at a current moment according to an optimal internal pipe temperature and a flow rate of the fluid at a previous moment; determining a covariance at the current moment according to the noise variance and an optimal covariance at the previous moment; determining a weight coefficient at the current moment; and determining an optimal internal pipe temperature at the current moment, thereby expanding the application range of temperature measurement in a pipe.

Abstract: A heat flux sensor according to an embodiment of the present disclosure includes: a thermogalvanic cell; a first electrode and a second electrode which are respectively disposed on a first surface and a second surface of the thermogalvanic cell; and a processor configured to estimate heat flux by measuring a voltage, generated by a temperature difference between the first surface and the second surface, by using the first electrode and the second electrode, wherein core body temperature may be estimated based on the heat flux, estimated by the heat flux sensor, and a skin surface temperature of an object.

Abstract: A temperature estimation method includes bringing a first thermal resistance member into contact with the test subject, measuring a first temperature of a surface of the test subject, calculating a temperature normalized by an instantaneous value of the first temperature of the surface of the test subject and the temperature of the first thermal resistance member and a setting value of the temperature of the surface of the test subject, deriving, as a temperature wave arrival time, deriving a proportionality coefficient based on the temperature wave arrival time, measuring a second temperature of the surface of the test subject, measuring a third temperature of a surface of the second thermal resistance member on a side opposite to the surface on the test subject side, and calculating an internal temperature of the test subject based on the second temperature, the third temperature, and the proportionality coefficient.

Abstract: Disclosed are vehicle-infrastructure interaction systems and methods employing a distributed fiber optic sensing (DFOS) system operating with pre-deployed fiber-optic telecommunication cables buried alongside/proximate to highways/roadways which provide 24/7 continuous information stream of vehicle traffic at multiple sites; only require a single optical sensor cable that senses/monitors multiple locations of interest and multiple lanes of traffic; the single optical sensor cable measures multiple related information (multi-parameters) about a vehicle, including driving speed, wheelbase, number of axles, tire pressure, and others, that can be used to derive secondary information such as weight-in-motion; and overall information about a fleet of vehicles, such as traffic congestion or traffic-cargo volume. Different from merely traffic counts, our approach can provide the count grouped by vehicle-types and cargo weights.

Abstract: A strain measuring system includes a piezoelectric element and a resistor provided on an object. The system also includes a resistance detection circuit to detect a change in resistance of the resistor, and a piezoelectric effect detection circuit to detect a piezoelectric effect of the piezoelectric element. A strain calculation circuit detects a strain changing time while the strain of the object is changing using a detection result from the piezoelectric effect detection circuit, calculates a change in resistance of the resistor during the strain changing time, and calculates a degree of strain of the object using a calculation result of the change in resistance.

Abstract: A force sensor comprising a beam having a longitudinal axis and a proximal end portion and a distal end portion; a first Wheatstone bridge disposed on a first face of the beam, including multiple tension gauge resistors and multiple compression gauge resistors; a second Wheatstone bridge disposed on the first face of the beam, including multiple tension gauge resistors and multiple compression gauge resistors; wherein at least one tension gauge resistor and at least one compression gauge resistor from each of the first and second Wheatstone bridges is disposed at a proximal end portion of the beam; wherein at least one tension gauge resistor and at least one compression gauge resistor from each of the first and second Wheatstone bridges is disposed at a distal end portion of the beam.

Abstract: A textile-based sensor includes a textile triboelectric nanogenerator sensor attached to and overlying a textile piezoresistive sensor, wherein the textile triboelectric nanogenerator sensor is configured to generate an electrical signal indicative of object contact force and/or frequency with the textile triboelectric nanogenerator sensor, object material, and object surface morphology or texture, and the textile piezoresistive sensor is configured to generate an electric signal indicative of the applied external pressure to the sensor, wherein the textile triboelectric nanogenerator sensor overlies the textile piezoresistive sensing.

Abstract: A distributed fiber optic sensing (DFOS) system and method record optical data in one or more optical fibers, calculate physical parameters from the recorded optical data, and compute locations of vehicles passing above or beside the one or more optical fibers based on the DFOS data. A method of determining a force exerted by an object onto a surface under the object using at least one optical fiber located below or adjacent to the surface includes measuring DFOS data arising from strain in the at least one optical fiber responsive to the force, determining at least one relationship between the measured DFOS data and the force and processing the measured DFOS data and the at least one relationship to determine the force.

Abstract: A fiber Bragg grating sensor arrangement includes a resonant cavity light emitting diode for outputting light; a fiber having a first end disposed to receive light output from the resonant cavity light emitting diode, the fiber including fiber Bragg grating etched at one or more locations along a length thereof. A strain mount or beam supports the fiber and to which the fiber is attached or bonded. A light detection circuit disposed at a second end of the fiber receives light traveling through the fiber, the light detection circuit sensing intensity of the received light that corresponds to strain or force applied to the fiber that is bonded to the strain mount. Another fiber Bragg grating sensor arrangement includes a second reference fiber that does not receive a force or strain. The reference fiber provides an output used to prevent temperature/humidity from affecting the output of the FBG sensor arrangement.

Abstract: Disclosed is a method for measuring an impact for a battery, which includes: storing, by a main control unit (MCU), a previous operation mode of a battery system in a first area of a memory; storing, by the MCU, a current operation mode of the battery system in a second area of the memory; determining, by the MCU, whether the operation mode stored in the first area and the operation mode stored in the second area are the same as each other; storing, by the MCU, a change flag in a third area of the memory as a first value when the operation mode stored in the first area and the operation mode stored in the second area are different from each other based on the determination result; receiving, by the MCU, an acceleration sensor signal from an acceleration sensor when the operation mode stored in the second area is a sleep mode and the change flag is the first value; and receiving, by the MCU, the acceleration sensor signal from the acceleration sensor when the operation mode stored in the second area is not the

Abstract: An apparatus and a method for detecting a tension abnormality in a dicing tape, to quantitively determine whether or not tension of the dicing tape is appropriate and accurately detected. A tension abnormality detecting apparatus 4 includes an air micrometer 41 that measures, displacement of a dicing tape DT occurring when air is blown to a measurement point P to which a workpiece W is not affixed. A determination unit 42 determines the tension of the dicing tape DT is appropriate when the tension of the dicing tape DT at the measurement point P belongs in a previously set proper range and determines that the tension of the dicing tape DT is abnormal when the tension of the dicing tape DT at the measurement point P does not belong in the proper range.

Abstract: A tension measuring assembly includes a pair of straps that has an attachment that can be attached to a tie down chain which is securing cargo on a flatbed trailer. A tension meter is provided and each of the pair of straps is attached to the tension meter. The tension meter measures tension in each of the straps to measure the tension in the tie down chain when the straps are attached to the tie down chain. A display unit is in remote communication with the tension meter and the display unit displays the tension measured by the tension meter. In this way the display unit facilitates a driver of the vehicle to monitor the tension of the tie down chain.

Abstract: A method, system, and computer-readable media for analyzing blast exposure data in which one or more spurious data features are identified, flagged, and removed from a set of pressure data received from a blast sensor. Pressure data sets are grouped based on waveform features to determine one or more incident overpressure parameters associated with a blast exposure event.

Abstract: The present disclosure provides an apparatus and a method for predicting attenuation of a pre-tightening force of a bolt, which relate to the field of prediction on the pre-tightening force of a bolt. The apparatus for predicting attenuation of a pre-tightening force of a bolt includes a pre-tightening force coefficient measuring device, including a clamping assembly, a pre-tightening force detecting assembly, a tightening assembly and a time length measuring assembly. The clamping assembly is configured to fix a bolt to be detected; the pre-tightening force detecting assembly is configured to measure the pre-tightening force to the bolt; the tightening assembly is configured to apply the pre-tightening force to the bolt; the time length measuring assembly is configured to measure a time length of each sampling in the process of tightening the bolt.

Abstract: A sensor die includes a carrier wafer having a first cavity and a second cavity and a silicon wafer disposed on the carrier wafer. The silicon wafer has a first membrane aligned with the first cavity and a second membrane aligned with the second cavity. The silicon wafer is monolithically formed in a single piece separate from the carrier wafer and has a wafer thickness that is uniform through the first membrane and the second membrane. The first membrane is deflectable in proportion with an absolute pressure on one of a first wafer side and a second wafer side of the silicon wafer opposite the first wafer side. The second membrane is deflectable in proportion with a differential pressure between the first wafer side and the second wafer side.

Abstract: A packaged pressure sensor assembly is disclosed that includes a pressure sensor including an upper substrate and a lower substrate bonded to one another by way of a first glass frit having a first bonding temperature, so as to define a hermetically sealed pressure sensing chamber therebetween, and a housing defining an internal cavity having a base with a support surface for supporting the pressure sensor, wherein the pressure sensor is bonded to the support surface of the base by a second glass frit having a second bonding temperature that is lower than the first bonding temperature.

Abstract: An aftertreatment system includes a housing and a tube assembly. The housing has a peripheral wall including an outer surface, an inner surface defining a passage configured to receive a flow of exhaust gas, and a peripheral wall aperture. The tube assembly includes a fitting assembly and a conveying tube. The fitting assembly includes a fitting body and a fitting tube. The fitting body includes a fitting body aperture, an upper surface, and a lower surface. The fitting body is inserted within the peripheral wall aperture and coupled to the outer surface. The fitting tube extends from the lower surface and is disposed in the passage and includes a fitting tube aperture at an inner end. The conveying tube is positioned partially within the fitting body aperture and extends outward from the fitting body and includes a conveying tube aperture at an inner end.

Abstract: A system for testing sensors is disclosed. The system includes a platform having a plurality of mounting holes and a microcontroller, the microcontroller having a wireless network interface. The system also includes a mount releasably coupled to the platform through a mounting hole, the mount configured to hold a sensor. The system includes a motor operatively coupled to the platform, and a motor controller communicatively coupled to the motor and configured to drive the motor to rotate the platform about an axis of rotation at a target speed. The microcontroller is communicatively coupled to a sensor releasably coupled to the mount. The microcontroller is configured to receive a measurement from the sensor that is output by the sensor in response to the platform being rotated such that the mount is subjected to a constant centripetal force. The microcontroller is configured to wirelessly transmit the measurement to an external device.

Abstract: A wheel and tire assembly (WTA) balancing system configured to transport a WTA within a defined perimeter may include a robot including a selectively movable arm and an end effector connected to the movable arm and configured to selectively engage a portion of a WTA, and a controller configured to provide instructions to the robot to selectively move the WTA to at least one of a plurality of stations within the perimeter.

Abstract: The purpose of the present invention is to provide a gas leak detection device and the like which are capable of detecting a gas leak from a pipe via a simple configuration. A gas leak detection device (2) comprises: a wind direction/wind speed detection means (21) that generates wind direction/wind speed information expressing the distribution of the wind directions and the wind speeds at the periphery of a pipe by means of LiDAR; an air flow detection means (22) that generates information about the air flow at the periphery of the pipe using the wind direction/wind speed information; and a gas leak detection means (24) that detects a gas leak or a vapor leak from the pipe using the information about the air flow.

Abstract: Disclosed are a colorimetric sensor for detecting harmful gas leakage in a product manufacturing process and a method for manufacturing the colorimetric sensor. The colorimetric sensor according to an embodiment may comprise: a colorimetric composition formed such that a dye including a metal component of which the own color changes when reacting with a harmful gas is bound to submicron fibers in the form of fine particles; and an adhesive band of a mesh structure to which the colorimetric composition is bound.

Abstract: The present invention provides a house system comprising a plurality of sensors, each configured to sense conditions of one or more house electrical or mechanical systems, one or more environmental conditions relating to the house, or a combination thereof; a plurality of devices, each configured to control the operation of one or more house electrical or mechanical systems; a compute module, comprising data storage local to the compute module and a programmed data processor configured to apply machine learning to develop a model of one or more conditions relating to the house, responsive to one or more of a plurality of conditions relating to the house; a communication interface configured to communicate information from the compute module with an external communications network accessible by one or more parties relating to the house.

Abstract: The purpose of the present invention is to detect a liquid leak in a pipe more easily. This liquid leak detection device (2) comprises: a data acquiring means (11) that acquires data based on reflected light from laser light which irradiates a region including a pipe; a pipe model generating means (12) that uses the data and generates a pipe model that is a three-dimensional model of the pipe; a polarization state detecting means (13) that uses the data and detects a polarization state in the pipe model; and a liquid leak detecting means (14) that detects a liquid leak in the pipe on the basis of the polarization state detected by the polarization state detecting means.

Abstract: An abnormal noise reproduction device and an abnormal noise reproduction method thereof are provided in the disclosure. The abnormal noise reproduction device includes at least one measuring device, an analysis device, and a vibration device. The at least one measuring device includes a contact microphone and an accelerometer. The contact microphone is disposed on the abnormal noise generating part of a vehicle, senses vibration sound of the abnormal noise generating part, and generates a vibration sound signal. An acceleration signal is generated by synchronously sensing acceleration of the contact microphone over a time sequence through the accelerometer. The analysis device determines when the abnormal noise generating part produces abnormal noise according to the vibration sound signal. The vibration device applies vibration to the vehicle and reproduces the acceleration signal corresponding to the abnormal noise.

Abstract: A low-cost, data-fitting-free robust methodology configured to distinguish the coupling condition of an arbitrary resonance, applicable in one example to a micro-resonator of a multi-micro-resonator optical integrated circuit. The method includes registering the resonator cavity response to a rapid-phase shift of the on-resonance pump field. From the registered feature of the time-dependent transmission characteristic acquired with an optical detector, the sign of a difference between the values of intrinsic loss of the cavity and the coupling rate (?i??c) is directly read out, thereby resulting not only in a more accurate estimation of the intrinsic loss as compared with related art, but also in facilitating practically-realizable inspection of massively integrated photonic platforms with micro-resonators.

Abstract: In a method and apparatus for estimating a cornering stiffness of a tire and detecting a road surface condition according to the present disclosure, the tire cornering stiffness can be estimated based on information obtainable from a vehicle and a simple model without using a separate sensor or a complex vehicle dynamics model for estimating cornering stiffness, and the road surface condition can be detected using a tire cornering stiffness estimation value based on information obtainable from the vehicle without using a separate sensor for estimating the road surface condition.

Abstract: A tire health estimation system and method includes aggregating model generation data over time, and iteratively generating tire health models based thereon. The model generation data correlates various combinations of a first set of input values for a given type of tire to each of various tire health variables for each of various tire components. A second set of the input values is measured and/or determined for an actual tire, wherein an appropriate model is selected for at least one tire health variable and at least one tire component based on the second set. Respective tire health variables are estimated for the tire components via the selected model(s) and based on the second set of input values, and an output signal is generated corresponding to a health of the tire based on a comparison of the estimated tire health variables.

Abstract: A sample taking device has an applicator unit for an application of a liquid sample to a first sample card, the applicator unit is in an application state configured for a simultaneous application of the liquid sample to a second sample card.

Abstract: A liquid sampling method in a flow monitoring system including a sampling section having a needle for performing sampling of a liquid, an analysis section that performs analysis of the liquid sampled by the sampling section, and a fluid supply section that supplies a sample fluid in a state of gas-liquid two-phase flow containing a gas phase and a liquid phase with the sample remaining in the state of gas-liquid two-phase flow. The liquid sampling method includes: a storage step of storing, in the storage container, a liquid phase contained in the sample fluid; a separation step of separating, from a liquid phase, a gas phase contained in the liquid phase stored in the storage container; and an injection step of suctioning, as a sample, the liquid phase stored in the storage container from a distal end of the needle after the separation step and injecting a predetermined amount of the sample into the analysis section through the injection port.

Abstract: A monitoring device and to a method for monitoring the quality of a gas atmosphere. The monitoring device has a ventilator which is designed to produce a gas stream having a variable volumetric flow. A gas sensor is arranged at a sensor position on a stationary part of the ventilator and provides a measurement value for a control device. The control device is designed to determine a corrected monitoring value of the volumetric flow based on the measurement value and provided correction data.

Abstract: The present invention relates to a stage assembly with a vent structure for preventing condensation by making a flow path in the stage so that air around the vessel on the stage passes through the inside of the equipment for making the temperature of a stage-direction surface of a vessel similar to the ambient temperature of the vessel to prevent condensation. In addition, the present invention relates to the stage assembly with the vent structure to reduce cost, prevent stenosis due to exposure of the drive, and improve antifouling function due to blocking of foreign substances, by simplifying the structure and reducing parts so that all drive parts can be mounted in a space smaller than the diameter of a knob for driving the stage, and applying a scotch yoke mechanism so that a rotary shaft connected to the knob per se is a drive to make a linear motion.

Abstract: The present invention relates to devices, systems, and methods for cutting tissues. In some embodiments, the devices, systems, and methods of the invention relate to cutting tissues into fragments that find use in tissue culture and drug testing applications.

Abstract: A purification method for detection of a strontium isotope in a silk cultural relic. The method includes: (1) enrichment of the strontium isotope: after cleaning the silk cultural relic, adding the silk cultural relic to a digestion agent for microwave digestion, and conducting evaporation drying; and adding a dried product to a nitric acid solution for centrifugal separation, and extracting a supernatant; and (2) purification of the strontium isotope: first, mixing 4?,4?(5?)-di-tert-butyldicyclohexano-18-crown-6 and a defoamer and adsorbed to a purified resin separation column, and pre-cleaning the purified resin separation column with a nitric acid solution; next, injecting the supernatant in step (1) into the purified resin separation column with a nitric acid solution as a carrier solution; and then, injecting an 84Sr solution and an elution solution into the purified resin separation column in sequence to obtain a separated and purified strontium solution.

Abstract: Disclosed are methods and compositions for use in preparing dynamic biological macromolecules for high-resolution cryo-electron microscopy or cryo-electron tomography imaging. The compositions contain a metallo-supramolecular branched polymer with a positive zeta potential, containing a hydrophilic polymer segment, a chelating chemical group, and a metal ion. The hydrophilic polymer segment is covalently bonded to the chelating chemical group that is in turn bonded to the metal ion via a dative bond. The methods and compositions can be used to improve particle distribution in vitreous ice and/or to change particle orientations in vitreous ice. Accordingly, the methods and compositions can be utilized to improve particle distribution for high resolution structure determination using single-particle cryo-EM.

Abstract: The disclosure relates to a method for determining the compressive character of an olefin polymerisation catalyst, comprising subjecting particles of an olefin polymerisation catalyst to micro-compression testing to obtain crushing strength data of the particles of the olefin polymerisation catalyst to determine the compressive character of the olefin polymerisation catalyst. The disclosure further re later to a method for evaluating the quality of an olefin polymerisation catalyst, comprising determining the compressive character of the olefin polymerisation catalyst, and evaluating the quality of the olefin polymerisation from the information obtained from the determination of its compressive strength. The disclosure still further relates to a method for predicting the performance of an olefin polymerisation catalyst in an olefin polymerisation process from its compressive strength descriptors, characterized in that the compressive character of the olefin polymerisation catalyst is determined as disclosed.

Abstract: A pressure-testing system for a tubular product such as production tubing. The pressure testing system includes a controller; a fluid reservoir containing a test fluid; a pump in fluid communication with the fluid reservoir; a fluid hose having a first end configured to receive the test fluid from the reservoir, and a second end configured to be fluidically connected to a hydrotest tool for the tubular product; and a transducer. The transducer sends signals to the controller indicative of pressure within the fluid hose. The controller is programmed to automatically (i) store a pressure threshold value (T) and (ii) store a pressure test value (PT) such that when pressure in the fluid hose reaches (T) or when pressure in the fluid hose reaches (PT), the controller sends a signal to divert a direction of fluid being pumped so that fluid is no longer pumped into the tubular product.