Abstract: The present invention relates to methods and compositions for monitoring, diagnosis, prognosis, and determination of treatment regimens in appendicitis patients and in patients at risk for appendicitis. In particular, the invention relates to using as-says that detect one or more biomarkers as diagnostic and prognostic biomarker assays in such patients.

Abstract: Provided herein are methods of developing pharmaceuticals for treatment of neurodegenerative conditions, such as synucleopathic conditions, amyloidopathic conditions, tauopathic conditions, and Huntington's disease. The methods involve using a biomarker to determine the effect of a candidate pharmaceutical on the condition. The biomarker profile includes quantitative measures of each of one or a plurality of neurodegenerative protein forms, wherein the neurodegenerative proteins are, e.g., alpha-synuclein and, amyloid beta, tau or huntingtin. Biomarker profiles include one or more oligomeric forms and, optionally, one or more monomeric forms of the neurodegenerative protein. Neurodegenerative proteins can be quantified from, e.g., CNS-derived exosomes from the blood of a subject.

Abstract: Methods and systems for diagnosing, providing prophylaxis, and treating one or more age-related neurodegeneration or pathological cognitive impairment are provided. An increased presence of CD103+ resident memory CD8+ T cells (CD8+ TRM) can be detected in blood sample obtained from the human subjects with one or more symptoms of loss of short-term or long-term memory, decreased ability to maintain focus, and decreased problem-solving capacity. An increased presence of CD103+ CD8+ TRM can be compared to a value obtained from one or a pool of healthy human subjects with none of the one or more symptoms. One or more of a therapeutically effective amount of: an inhibitor of cluster of differentiation (CD103), an inhibitor of perforin-1, and an inhibitor of interferon gamma (IFN?) can be administered as treatment of age-related neurodegeneration or pathological cognitive impairment. Pathological neurodegeneration can include Parkinson's disease, multiple sclerosis, or Alzheimer' s disease.

Abstract: The present disclosure provides methods to quantify tau phosphorylation at specific amino acid residues to predict time to onset of mild cognitive impairment due to Alzheimer's disease, stage Alzheimer's disease, guide treatment decisions, select subjects for clinical trials, and evaluate the clinical efficacy of certain therapeutic interventions.

Abstract: A method of measuring stable A1c in a blood sample based on a time distribution of an optical measured value of hemoglobin at a flow path which separates hemoglobin in the blood sample on a basis of amounts of the charges of hemoglobin, the method comprising: a step of obtaining a correction factor, based on a peak area (A) of a fraction including HbA0 and either a peak area (G) of a first fraction including chemically-modified HbA0, or a peak area (D) of a second fraction including a component having a smaller amount of positive charge than HbA0 adjacent to a fraction identified as HbA0, in the time distribution; and a step of correcting, based on the correction factor a peak area of a fraction including stable A1c in the time distribution.

Abstract: A device that includes a first portion, the first portion including at least one fluid channel; a fluid actuator; and an introducer, a second portion, the second portion including at least one well, the well containing at least one material, wherein one of the first or second portion is moveable with respect to the other, wherein the introducer is configured to obtain at least a portion of the material from the at least one well and deliver it to the fluid channel, and wherein the fluid actuator is configured to move at least a portion of the material in the fluid channel.

Abstract: Disclosed herein are methods, biomarkers, systems, compositions and kits for determining the phase or metabolic state (e.g. First Phase, Second Phase, or Third Phase) of a red blood cell (RBC) sample or for determining the phase or metabolic state (e.g., First Phase or Second Phase) of a platelet (PLT) cell sample. The methods disclosed herein are related to the use of isolated RBC sample or isolated PLT sample and analytical tools for providing information that is relevant to the phase or metabolic state of the RBC sample or the PLT sample. The system disclosed herein utilizes isolated RBC sample or isolated PLT sample and at least one analytical tool or an output from the at least one analytical tool. The compositions and kits described herein utilize RBC samples or PLT samples, including compositions in a form that allows for analysis of the RBC sample or the PLT sample.

Abstract: The present invention relates to the identification of peptides, and the corresponding proteins, that can be used in methods for the detection of autologous blood doping. More specifically, the invention relates to methods comprising tryptic digestion of samples of isolated red blood cell (RBC), specifically isolated RBC cytosol, followed by peptide mapping using liquid chromatography tandem-mass spectroscopy (LC-MS/MS). The methods according to the invention which enable detection of increased levels of certain peptides in samples from subjects that have been subjected to autologous blood doping, compared to samples from non-doped control subjects.

Abstract: Disclosed are a method of assisting in determination of risk of cardiovascular disease, coronary heart disease, or cerebral stroke, and a method of assisting in diagnosis of cerebral stroke. The method of assisting in determination of risk of cardiovascular disease, coronary heart disease, or cerebral stroke includes measuring LDL-TG value in blood isolated from a biological body, and a high measured LDL-TG value indicates a high risk of cardiovascular disease, coronary heart disease, or cerebral stroke. The method of assisting in diagnosis of cerebral stroke includes measuring LDL-TG value in blood isolated from a biological body, and a high measured LDL-TG value indicates a high possibility of onset of cerebral stroke.

Abstract: Method and system for detecting and/or quantifying ?9-tetrahydrocannibinol (THC) in a saliva sample. In one embodiment, the method involves providing an electrochemical sensing element, the electrochemical sensing element including a working electrode, a counter electrode, and a reference electrode, all of which are screen-printed. A saliva sample is then deposited directly on the working electrode. Next, the deposited saliva sample is treated with a fluid that includes one or more alcohols and water in an alcohol/water ratio of 50/50 to 100/0 (v/v), the fluid optionally also including a surfactant. Next, the treated saliva sample is dried, whereby any THC present in the treated saliva sample is immobilized on the working electrode. Next, an electrolytic solution is delivered to the electrochemical sensing element, and the THC immobilized on the working electrode is directly electrochemically detected and/or quantified using a pulse voltammetry technique, such as square-wave voltammetry.

Abstract: Compounds and methods for use in detecting gabapentin in a sample suspected of containing gabapentin are disclosed. Gabapentin derivatives are used to produce gabapentin conjugates. A gabapentin-immunogenic carrier conjugate may be used as an immunogen for the preparation of an anti-gabapentin antibody. A gabapentin-detectable label may be used in a signal producing system in gabapentin assays.

Abstract: A method of operating an analytical laboratory is presented. The method comprises recording time at which samples are first identified; retrieving an order list comprising test orders for the samples; retrieving a degradation limit to each test order; determining workflows for each sample; instructing the laboratory instruments to carry out the test orders according to the workflows. Determining the workflows comprises i) determining target instruments capable of carrying out the test orders; ii) determining a sequence/timing of the test orders; iii) calculating an estimated completion time for each test order; iv) determining a lead time for each sample and test order; v) prioritizing test orders if the lead time exceeds the degradation limit. Steps ii) to v) are repeated until the lead time doesn't exceed the degradation limit for any of the test orders; or until steps ii) to v) have been repeated for a number N of iterations.

Abstract: A method of operating a laboratory sample distribution system is presented. The system comprises container carriers, a transport plane, and drive elements. The container carriers carry sample containers. The transport plane supports the container carriers. The drive elements move the container carriers on the transport plane. The method comprises planning a movement path for a container carrier from a start to a goal on the transport plane modelled by nodes. The nodes are free for one time-window or reserved for one-time window. The planning comprises analyzing the reachability out of a free time-window of one node to free time-windows of a next node and an over-next node such that planned movement of the container carrier is nonstop. The method comprises reserving the planned movement path comprising a sequence of time-windows of nodes and moving the container carrier along the reserved movement path on the transport plane by a drive element.

Abstract: An automatic analyzer allows identification of the patient specimen for which the specific reagent and the standard solution have been used, and verification of reliability of the analysis results. A plot mark 1-10 is determined depending on whether or not codes and lots as management information of the reagent, standard solution, and accuracy control sample are the same as those used last time. The plot 1-3 represents the start of using the reagent, and 1-4 the reagent use area. The plot 1-5 represents generation of calibration curve data from the standard solution and 1-6 a standard solution use area. The plot 1-7 represents measurement of the accuracy control sample and 1-8 an accuracy control sample use area from a time point of measuring the accuracy control sample as indicated by the plot 1-7 until the next time point. The measurement information 1-14 is the region for displaying the measurement results.

Abstract: Provided is a biochemical analyzer, which includes a housing, a sample feeding mechanism, a rotating mechanism, a pipetting mechanism, analyzing mechanisms, a sample discharging mechanism and a sample discharging box, wherein a sample feeding port and a sample discharging port are formed in the housing; the sample feeding mechanism is arranged in the housing and capable of introducing detection cards containing samples and reagents into the housing from the sample feeding port; the rotating mechanism is capable of clamping a plurality of detection cards and driving the detection cards to rotate; the sample feeding mechanism is capable of clamping the detection cards on the rotating mechanism; the pipetting mechanism is capable of mixing the samples with the reagents on the detection cards; the analyzing mechanisms are capable of analyzing the samples through detection rays; the sample discharging mechanism is used for removing the detection cards from the rotating mechanism.

Abstract: A sample feeding apparatus, a sample analyzing device, and a control method for a sample feeding apparatus are disclosed. At least two of a feeding unit, a temporary storage unit, and a recovery unit together form a vertical stack structure, and a dispatching manipulator transfers a sample vessel among the feeding unit, the temporary storage unit, the recovery unit, and a sample aspiration region. The space in a vertical direction can be reasonably utilized, superposition is performed in space to simplify the dispatching process, and the occupation of a horizontal space is reduced. As a result, the floor space is reduced, and the apparatus is further miniaturized.

Abstract: Disclosed is a specimen measurement method for measuring platelet aggregation of a specimen, and the specimen measurement method includes: automatically preparing a diluted reagent solution that contains a platelet-aggregating reagent diluted with a diluent; preparing a measurement sample that contains a predetermined concentration of the platelet-aggregating reagent, from the diluted reagent solution and the specimen; and performing optical measurement of the measurement sample.

Abstract: Systems, methods, and devices for discretizing and analyzing fluidic samples are provided. In one aspect, a microfluidic array for discretizing a fluidic sample comprises one or more flow channels and a plurality of fluidic compartments in fluidic communication with the one or more flow channels. In another aspect, a system for discretizing and analyzing fluidic samples comprises a rotor assembly shaped to receive a microfluidic device.

Abstract: A processor-implemented posture determination method includes: estimating a rotational acceleration of a timepoint based on an angular velocity measured by a first sensor at the timepoint and a determined center of rotation of a previous timepoint; correcting an acceleration measured by a second sensor at the timepoint based on the rotational acceleration; and determining a center of rotation of the timepoint and a posture of the timepoint based on the corrected acceleration and an estimated posture of the timepoint.

Abstract: A method for determining the tension of a drive belt, wherein the drive belt is provided for transmission of a torque generated by a drive unit to a load, for example, a door leaf of a door system includes a first process step a., the load is moved from a moving state into a rest state. In a following process step b., the motor voltage is recorded during execution of process step a. and the time-resolved motor voltage curve is prepared. In step c., the motor current is determined from the recorded motor voltage or the motor voltage curve and a time-resolved motor current curve is prepared. In a last step d., the time-resolved motor current curve is evaluated and the tension of the drive belt is determined by means of selected curve features of the motor current curve.

Abstract: A computing device comprising a portable housing having opposing top and bottom edges and opposing side edges, a memory carried by the portable housing, a display carried by the portable housing, a rotational motion sensor carried by the portable housing, and a processor carried by the portable housing and coupled to the memory, the display, and the rotational sensor. The processor may be configured to determine a rotational angle of the portable housing based upon the rotational motion sensor as the portable housing is rotated to a position where an orientation of at least one of the sides of the portable housing matches an orientation of a localized atmospheric event, calculate a localized wind speed value from the determined rotational angle, and output the calculated localized wind speed value on the display.

Abstract: The disclosure provides a piezoelectric sensor including a connector and a charge output element. The connector includes a connector housing and a conductive terminal interposed inside the connector housing. The connector housing and the conductive terminal are connected by a first insulating layer. The charge output element includes a base including opposite axially top and bottom ends. A first recess is provided at the top end of the base. A connecting member is disposed inside the first recess along an axial direction of the first recess. A piezoelectric element, a mass block and a fastener are sequentially sleeved on the connecting member. The base includes a second recess formed by recessing an outer peripheral surface of the base toward an interior of the base. The connector is connected to an inner wall of the second recess. A recessed direction of the second recess intersects the axial direction of the base.

Abstract: The present disclosure relates to a piezoelectric sensor, which comprises a charge output element comprising a first end surface and a second end surface opposite to each other in a length direction, and comprising a base and a connecting member extending from the base in a height direction, wherein a piezoelectric member and a mass are sleeved on the connecting member, and are fixed to the connecting member via a pretensioning member; a connector, disposed above the first end surface of the charge output element with a predetermined distance from the first end surface in the length direction, and comprising a connector housing and a conductive terminal, which is inserted into an interior of the connector housing and connected to the connector housing by a first insulating layer; and a case, containing the charge output element and connected with the connector housing and the base.

Abstract: The present disclosure relates to a cable and a high temperature resistant piezoelectric acceleration sensor. The cable comprises a high temperature connection terminal, a low temperature connection terminal, and a high temperature resistant wire segment and a low temperature wire segment located between the high temperature connection terminal and the low temperature connection terminal.

Abstract: The disclosure provides a charge output element and a piezoelectric acceleration sensor. The charge output element includes: a base including a supporting member and a connecting member disposed on the supporting member; a flexible member sleeved on the connecting member for bending deformation; a mass block assembly disposed around a circumference of the connecting member, wherein the mass block assembly is coupled to the connecting member by the flexible member and suspended above the supporting member to drive the flexible member to be bent and deformed in an extending direction of the connecting member; and a piezoelectric element attached to a surface of the flexible member away from the supporting member and disposed to move along with movement of the flexible member. Therefore, the sensitivity of the charge output element can be improved while the sensitivity of the charge output element is not susceptible to the strain of the base.

Abstract: The disclosure provides a piezoelectric acceleration sensor including a charge output element, a casing, a cable assembly and a connector. The casing is snap-fitted to a supporting portion of a base of the charge output element, and forms a receiving space for receiving the charge output element, the piezoelectric, and the mass block with the supporting portion. The cable assembly is connected to the supporting portion. The connector is connected to an end of the cable assembly facing away from the supporting portion, and is insulated from the cable assembly. One end of either of a first lead and a second lead of the cable assembly is electrically connected to the piezoelectric element, while the other end of the first lead is electrically connected to a conductive terminal of the connector and the other end of the second lead is electrically connected to a housing of the connector.

Abstract: An inertial structure is elastically coupled through a first elastic structure to a supporting structure so as to move along a sensing axis as a function of a quantity to be detected. The inertial structure includes first and second inertial masses which are elastically coupled together by a second elastic structure to enable movement of the second inertial mass along the sensing axis. The first elastic structure has a lower elastic constant than the second elastic structure so that, in presence of the quantity to be detected, the inertial structure moves in a sensing direction until the first inertial mass stops against a stop structure and the second elastic mass can move further in the sensing direction. Once the quantity to be detected ends, the second inertial mass moves in a direction opposite to the sensing direction and detaches the first inertial mass from the stop structure.

Abstract: An inertial sensor includes a movable element including a first movable section and a second movable section, a first detection electrode, and a first dummy electrode. The first movable section has a first section, a second section that is farther from the swing axis than the first section, and a third section disposed between the first section and second section. The first section of the first movable section has a first opening and the third section of the first movable section has a second opening. An opening ratio of the first opening to the first section of the first movable section is smaller than an opening ratio of the second opening to the third section of the first movable section.

Abstract: An acceleration sensor includes a base substrate provided with a first recess part, and a sensor part located on the first recess part and swingably supported in a depth direction of the first recess part by a support part, wherein the sensor part is sectioned into a first part and a second part by the support part, includes a movable electrode part in the first part and the second part, a through hole is provided at least at an end side in the second part larger in mass than the first part, and the base substrate includes a fixed electrode part in a position opposed to the movable electrode part in the first recessed part, and a second recess part deeper than the first recess part is provided in a position opposed to the end side of the sensor part.

Abstract: A measuring device for a scanning probe microscope including a sample receptacle configured to receive a sample; a measuring probe which is arranged on a probe holder and has a probe tip; a displacement device which moves the measuring probe and the sample receptacle relative to each other; a control device which is connected to the displacement device and controls the relative movement between the measuring probe and the sample receptacle; and a sensor device which is configured to detect, movement measurement signals during an absolute measurement for a movement of the measuring probe and/or a movement of the sample receptacle. The movement measurement signals are relayed to the control device. The control device is configured to control the relative movement. The invention also provides a scanning probe microscope, as well as a method for examining a sample.

Abstract: A deformable phantom, according to the present invention, has a housing made of a MRI invisible material enclosing a sealed reservoir filled with a MRI signal producing material, a piston slidably mounted within a sleeve and extending into the sealed reservoir, wherein the sleeve is slidably mounted to the housing and extends into the sealed reservoir, and a deformable structure within the sealed reservoir. The piston and sleeve move opposite to one another to conserve a constant fluid volume within the sealed reservoir as the piston moves in and out of the sealed reservoir to cause motion and/or deformation of the deformable structure.

Abstract: The present disclosure relates to a measuring system including: an automation field device embodied for determining and/or monitoring a process variable of a medium; a connection unit, which includes a connection plug, which is electrically connected with the field device, and a cable, which is connected to the connection plug with a cable connection and which serves for supplying the field device with electrical energy and/or for transmitting information between the field device and a superordinated unit; and a protective cover, which surrounds the connection unit and the field device connected with the connection unit in a protection section, wherein by means of the protective cover the impact resistance of the measuring system in the protection section is increased.

Abstract: A high density thin walled test device testing chips/ICs is disclosed. A housing includes a slot for a contact pin and a pair of elastomers. The pin has an arcuate recess to receive part of the elastomer. Likewise the housing includes a channel to receive part of the elastomer. The recess and channel together partially surround the elastomer but not completely to allow shear forces and expansion space for the elastomer as it is compressed by the channel and recess. In addition, a front channel extends from the top surface of the housing toward the bottom surface but leaving a floor to support the elastomer so that it does not warp the housing when compressed. Further, the channel or the recess may include retainers which prevent the elastomer from moving out of position when the pin is in an uncompressed state.

Abstract: Systems, methods, and an apparatus for current monitoring are disclosed. A current monitor comprises a high-voltage side configured to obtain a signal indicative of current through a conductor and apply different levels of gain to different frequency bands of the signal to produce an adjusted signal. A low-voltage side of the current monitor is electrically isolated from the high-voltage side and is configured to split the adjusted signal to produce a plurality of output signals that are each indicative of a level of current at one of the different frequency bands. An isolation amplifier is configured to communicate the adjusted signal from the high-voltage side to the low-voltage side while electrically isolating the high-voltage side from the low-voltage side.

Abstract: Magnetic sensors each disposed to face each of current paths for each of windings with 2n phases (n is a multiple of three) in an AC rotating machine are included, and when each of a DC component and an AC component in a d-axis sum current and a q-axis sum current obtained by performing a dq-transformation into a two-axis coordinate system on 2n detection currents on the assumption that all current amplitudes of the windings are the same is represented collectively with each of terms expressed by sine functions with different phases to one another, each of the current paths at each of 2n current path arrangement positions is arranged to have a positional relationship where error components are reduced by cancellation among coefficients included at least in one of the terms or by cancellation among values of the terms.

Abstract: A sensor unit includes a bus bar and a magneto-electric conversion device. The bus bar connects a plurality of switch elements constituting a part of a power conversion circuit and a motor. The magneto-electric conversion device is disposed to face a middle portion of the bus bar across a clearance in a predetermined direction to detect a magnetic field caused by an electric current flowing through the bus bar, to thereby detects the electric current. The bus bar includes a first end and a second end. The first end of the bus bar is connected to one of a switch terminal extending from the switch elements and a motor terminal extending from the motor, and the second end of the bus bas is connected to the other of the switch terminal and the motor terminal.

Abstract: Magnetic sensors each disposed to face each of current paths for each of windings with 2n phases (n is a multiple of three) in an AC rotating machine are included, and when each of a DC component and an AC component in a d-axis sum current and a q-axis sum current obtained by performing a dq-transformation into a two-axis coordinate system on 2n detection currents on the assumption that all current amplitudes of the windings are the same is represented collectively with each of terms expressed by sine functions with different phases, each of the current paths at each of 2n current path arrangement positions is arranged to have a positional relationship where error components are reduced by cancellation among coefficients included at least in one of the term or by cancellation among values of the terms.

Abstract: Methods and systems are disclosed for sensing an environment electric field. In one exemplary implementation, a method includes disposing a sensor in the environment, wherein the sensor comprising a crystalline lattice and at least one optically-active defect in the crystalline lattice; pre-exciting the crystalline lattice to prepare at least one defect in a first charge state using a first optical beam at a first optical wavelength; converting at least one defect from the first charge state to a second charge state using a second optical beam at a second optical wavelength; monitoring a characteristics of photoluminescence emitted from the defect during or after the conversion of the at least one defect from the first charge state to the second charge state; and determining a characteristics of the electric field in the environment according to the monitored characteristics of the photoluminescence.

Abstract: An input circuit for detecting low voltage analog signals in an electrically noisy environment receives the analog input signal at an input terminal. The analog input signal is compared to a variable reference signal at a comparator circuit. An active hysteresis circuit provides feedback to the comparator. In a first operating mode, the active hysteresis circuit may be disabled or be configured to output a constant voltage. In a second operating mode, the active hysteresis circuit may be enabled or configured to output a varying level of voltage. The output of the feedback circuit is summed with the variable reference signal and supplied as the input signal to the comparator, such that signal against which the analog input signal is compared is a general constant value in the first operating mode and varies with respect to time in the second operating mode.

Abstract: The disclosed technology generally relates to electrical overstress protection devices, and more particularly to electrical overstress monitoring devices for detecting electrical overstress events in semiconductor devices. In one aspect, a device configured to monitor electrical overstress (EOS) events includes a pair of spaced conductive structures configured to electrically arc in response to an EOS event, wherein the spaced conductive structures are formed of a material and have a shape such that arcing causes a detectable change in shape of the spaced conductive structures, and wherein the device is configured such that the change in shape of the spaced conductive structures is detectable to serve as an EOS monitor.

Abstract: Implementations of voltage sensing systems may include: a high side current mirror coupled to a reference current source coupled to at least one diode. The at least one diode may be coupled to a resistor and to a comparator. The resistor may be coupled to the ground. The comparator may be coupled with a reference voltage. The comparator may be configured to receive a comparison voltage from the diode and output whether the comparison voltage is higher or lower than the reference voltage.

Abstract: A system for measuring electrical network parameters may include a voltage sensing node of an electrical network with a first clock and a current sensing node of the electrical network with a second clock. At least one of the voltage sensing node and the current sensing node synchronizes the first clock with the second clock. The voltage sensing node samples a voltage signal from a voltage transducer and the current sensing node samples a plurality of current signals from respective current transducers. The voltage sensing node resamples the sampled voltage signal to determine corresponding resampled voltage signals, and the current sensing node resamples each of the sampled current signals to determine corresponding resampled current signals. The voltage sensing node communicates (1) corresponding re-sampled voltage signals and (2) a voltage time stamp based on the synchronized first clock associated with the sampled voltage signal to the current sensing node through a communication link.

Abstract: A system and method is disclosed for detecting a specific voltage phase, from a multiphase voltage source, and a specific outlet of an intelligent power strip, that is associated with a residual current flow. The method accomplishes this by using a system that employs a statistical time series analysis using a Pearson's correlation coefficient calculation to measure the linear dependence between the discretely sampled residual current waveform and each phase and outlet's discretely sampled current waveforms, in turn. A residual current as low as 1 mA can be accurately measured and its associated voltage phase source, as well as which outlet of an intelligent power strip it flows out of, can be reliably determined.

Abstract: An electrical meter may process measurements of a power line to a building to determine information about devices in the building, such as a state change of a device or power consumption of an individual device. The electrical meter may have more than one mode of operation to provide improved functionality for end users. For example, a first mode of operation may provide higher accuracy in determining information about devices but may also have higher latency in making determinations (e.g., identifying state changes of devices), and a second mode of operation may have lower accuracy but also lower latency to provide information more quickly to end users. The mode of operation of the power monitor may change depending on whether an end user is currently viewing information about devices.

Abstract: Provided is a frequency spectrum monitoring data structured representation method, comprising the following steps: discretizing frequency spectrum monitoring data of a single station in a time dimension and a frequency spectrum dimension to form a two-dimensional frequency spectrum matrix; and arranging frequency spectrum matrices, obtained by all the stations in a certain region, according to a certain rule by taking a certain point as the center, so as to construct a three-dimensional frequency spectrum matrix body. The positive effects of the present invention are that: four dimensions, i.e.

Abstract: Disclosed are a displacement sensor-combined electrostatic measurement potential sensor, and an operation method therefor, wherein a displacement sensor and an electrostatic measurement potential sensor are provided in one device, and operations thereof are linked; a distance to an electrified body measured by the displacement sensor is stored in a main controller to automatically correct a measurement value of the amount of static electricity obtained by the potential sensor; a change in capacitance that the displacement sensor affects with respect to the potential sensor is applied to correction of an error in a result value measured by the potential sensor, so that it is possible to solve the problem of malfunction according to detection of the electrified body, wherein the distance thereto is changed, and accurately measure the potential; and by manufacturing the device in a small size, easy use is achieved and manufacturing and installation costs are reduced.

Abstract: Various approaches can be used to interrogate a surface such as a surface of a layered semiconductor structure on a semiconductor wafer. Certain approaches employ Second Harmonic Generation and in some cases may utilize pump and probe radiation. Other approaches involve determining current flow from a sample illuminated with radiation. Decay constants can be measured to provide information regarding the sample. Additionally, electric and/or magnetic field biases can be applied to the sample to provide additional information.

Abstract: A connection quality system can include a resistance test module, a first line connected to the resistance test module and configured to connect to a wire connection assembly past one or more physical connections of the wire connection assembly, and a second line connected to the resistance test module and configured to connect to the wire connection assembly directly or indirectly on an opposite side of the one or more physical connections of the wire connection assembly such that the first line and the second line are in electrical communication through the wire connection assembly. The resistance test module can be configured to determine if the one or more physical connections are degraded or broken based on a resistance of the wire connection assembly.

Abstract: A method can be used for fault location in a power transmission line connecting a first terminal with a second terminal. Arrival times of a first peak and a second peak of travelling waves are detected from measurements carried out at the first and second terminals. a rough location of a fault is identified based on a comparison of the arrival times obtained for the travelling waves detected from the measurements carried out at the first terminal, and the arrival times obtained for the travelling waves detected from the measurements carried out at the second terminal. The fault location is estimated based the rough location, the arrival times of the first and second peaks of the travelling waves detected from measurements carried out at the first and second terminals, and a length of the power transmission line.

Abstract: A system and method for geomagnetic disturbance determination for a power system, the method including: receiving sensor data including an electric field experienced by one or more portions of the power system; determining a total Geomagnetically Induced Current (GIC) as a multi-variable function of phasors in two field directions proportional to the experienced electric field; determining one or more maximum magnitudes of the total GIC and a corresponding direction; and outputting the determined one or more maximum GIC magnitudes and the corresponding directions. In a particular case, determining the one or more maximum magnitudes of the total GIC and the corresponding direction includes setting a gradient of the total GIC to zero to determine one or more extremum points.