A pest monitoring system generally includes a circuit, wherein the circuit is initially in a first impedance state that is configured to change to a second impedance state due to pest activity, wherein the second impedance state is lower than the first impedance state.

The present disclosure relates to utility locator and user interfaces for use with such locators. Such utility locators may include multiple antennas and sensors for determining and displaying information associated with a buried or otherwise inaccessible utility.

A method and system for advanced detection and optimization of tunnel resistivity based on depth resolution. The method includes integrating all acquired electrode measurement data into comprehensive set, calculating its model resolution matrix, and selecting plurality of electrode measurement data from comprehensive set to form initial set; adding measurement data of electrodes that are not in initial set to initial set to form plurality of temporary subsets; calculating depth resolution balance goodness function of temporary subset according to model resolution matrix, selecting temporary subset with optimal value of depth resolution balance goodness function as new initial set, and determining whether average relative model resolution of initial set meets optimization requirements; if requirements are not met, continuously updating temporary subset, otherwise outputting initial set; determining number and position of tunnel face measurement electrodes according to updated initial set, and obtaining effective observation mode of advanced detection of optimized borehole resistivity.

A method and system for advanced detection and optimization of tunnel resistivity based on depth resolution. The method includes integrating all acquired electrode measurement data into comprehensive set, calculating its model resolution matrix, and selecting plurality of electrode measurement data from comprehensive set to form initial set; adding measurement data of electrodes that are not in initial set to initial set to form plurality of temporary subsets; calculating depth resolution balance goodness function of temporary subset according to model resolution matrix, selecting temporary subset with optimal value of depth resolution balance goodness function as new initial set, and determining whether average relative model resolution of initial set meets optimization requirements; if requirements are not met, continuously updating temporary subset, otherwise outputting initial set; determining number and position of tunnel face measurement electrodes according to updated initial set, and obtaining effective observation mode of advanced detection of optimized borehole resistivity.

The present disclosure relates to utility locator and user interfaces for use with such locators. Such utility locators may include multiple antennas and sensors for determining and displaying information associated with a buried or otherwise inaccessible utility.

The method comprises the following steps providing a porous sample containing a first fluid; establishing a steady state profile of a second fluid content in the porous sample by applying a first mechanical load, to create a plurality of regions having different second fluid contents in the porous sample; measuring, in each of the plurality of regions, a local saturation in the first fluid or/and in the second fluid; measuring, in each of the plurality of regions, a corresponding local electrical resistivity and/or conductivity; and determining a value of the representative parameter based on the corresponding values of local saturation and of local electrical conductivity and/or resistivity in each of the plurality of regions.

A semiconductor device resistant to a high temperature with low power consumption is provided. The semiconductor device includes a first and a second circuit, a first and a second cell, and a first and a second wiring. The first cell includes a first transistor, and the second cell includes a second transistor. The first and the second transistor operate in a subthreshold region. The first cell is electrically connected to the first circuit through the first wiring, the first cell is electrically connected to the second circuit through the second wiring, and the second cell is electrically connected to the second circuit through the second wiring. The first cell sets a current flowing through the first transistor to a first current and the second cell sets a current flowing through the second transistor to a second current. At this time, a potential corresponding to the second current is input from the second wiring to the first cell. Then, a third current flows from the second circuit to change a potential of the second wiring, whereby the first cell outputs a fourth current corresponding to the amount of the potential change and the first current.

A semiconductor device resistant to a high temperature with low power consumption is provided. The semiconductor device includes a first and a second circuit, a first and a second cell, and a first and a second wiring. The first cell includes a first transistor, and the second cell includes a second transistor. The first and the second transistor operate in a subthreshold region. The first cell is electrically connected to the first circuit through the first wiring, the first cell is electrically connected to the second circuit through the second wiring, and the second cell is electrically connected to the second circuit through the second wiring. The first cell sets a current flowing through the first transistor to a first current and the second cell sets a current flowing through the second transistor to a second current. At this time, a potential corresponding to the second current is input from the second wiring to the first cell. Then, a third current flows from the second circuit to change a potential of the second wiring, whereby the first cell outputs a fourth current corresponding to the amount of the potential change and the first current.

A foreign object detection method for detecting whether a foreign object exists on a function pin of a power supplier side or a power receiver side, wherein the power supplier side and the power receiver side are coupled to each other in a detachable fashion. The foreign object detection method includes: discharging a capacitor via the function pin, wherein the capacitor is electrically connected to the function pin; providing a sensing current flowing through the function pin, to charge the capacitor; sensing a voltage variation of the function pin during a predetermined period; and comparing the voltage variation with a predetermined variation, so as to determine whether a foreign object exists on the function pin.

A downhole tool may comprise a tool body that is a structural support for the downhole tool, an upper arm attached at one end to the tool body, a pad attached at an opposite end of the upper arm, a lower arm attached at one end to a sliding block and attached to the pad at an opposite end of the lower arm, and a passive arm connected to the lower arm and the tool body. A method may comprise disposing a downhole tool into a borehole, applying a force to a passive arm, applying a second force from the passive arm to the lower arm in response to the force applied to the passive arm, and moving the lower arm and the passive arm in a longitudinal direction along an axis of the downhole tool.