Finlayson, Scott Henry

A capacitive electrical conductivity sensor is integrated into a water meter. The sensor is used to determine water conductivity, which may be used to determine water quality. A model of a capacitor, a flow of water, and a plastic pipe used to conduct the flow of water passing through a water meter is defined. The model may include a circuit having a constant phase element (CPE) connected to a resistor R_b and a capacitor C_b in parallel. An input signal may be applied to the actual capacitor (not the model) over a range of frequencies. Current flow associated with several frequencies may be used to identify values of Q₀ and alpha of the CPE of the model. A value for the resistor R_b is identified using values obtained from measurements. A conductivity of the flow of water may be derived using input values comprising R_b, and the values of Q₀ and alpha of the CPE of the model.

Techniques for determining and increasing solar panel efficiency are described herein. In one example, a smart electricity meter, a server, and/or some other computing device of an electricity grid is configured to identify a photovoltaic (PV) device and an electricity meter associated with the PV device. The device may determine a theoretical maximum energy production for the PV device, and may determine an adjusted theoretical maximum energy production for the PV device. The adjusted theoretical maximum energy production may be based on the theoretical maximum energy production reduced by factors including installation location, weather, etc. The device may determine an actual energy production of the PV device. Responsive to the actual energy production of the PV device being less than the adjusted theoretical maximum energy production for the PV device, a fault in operation of the PV device is determined. Appropriate action may be taken to remedy the fault.

In various embodiments, techniques for detecting potential breaks or leaks due to disruptive events include detecting, by a computing device, an event occurring at a location proximate a metering device, the event corresponding to an earthquake or a severe weather event; receiving, by the computing device, first consumption data for a commodity, the first consumption data being collected by the metering device after the event; comparing the first consumption data with second consumption data for the commodity, the second consumption data being collected by the metering device before the event; and in response to the comparing, performing, by the computing device, a remedial action.

Systems, methods, devices, and assemblies for electrically insulating lower controls of a low voltage aerial device. The lower controls may include two or more electrically insulating components working concurrently to provide electrically insulating capabilities to electrically isolate one or more electrical cables or other electrically conductive components associated with the lower controls. For example, one or more electrical cables may communicate with an upper portion of the low voltage aerial device, such that the electrically insulating components break an electrical path to ground from the upper portion of the low voltage aerial device.

Systems, methods, and devices include a personal protection gown to provide frontal protection for the user. The personal protection gown includes a neck protector extending from a front neckline of a body portion of the personal protection gown. The neck protector partially couples to the front neckline such that a separation gap between the neck protector and the body portion is formed (e.g., on either side of the partial coupling and around the back of the neck). Extension straps of the neck protector are pulled around a neck of the user and form a knot to secure the neck protector and the personal protection gown in place. The separation gap provides flexibility in how tightly the neck protector is pulled such that the personal protection gown effectively provides zone A coverage (e.g., as defined by the Association for the Advancement of Medical Instrumentation (AAMI) for different body shapes and sizes).

A computer-implemented method for two-party computation of a digital signature of a message using a lattice-based digital signature scheme, wherein the lattice-based digital signature scheme uses a public key and a private key comprising a first private key share and a second private key share. The method comprises, at a first party 110, receiving the message for signing and retrieving the first private key share held by the first party. The method comprises, at a first party, computing 216 a first party share of the digital signature based on the message, the first private key share and secret-shared data, wherein secret-sharing is performed with a second party which holds the second private key share. The method comprises, at a first party, receiving a second party share of the digital signature from the second party; and forming 218 the digital signature by combining the first party share of the digital signature and the second party share of the digital signature.

A display apparatus presented herein includes pixel lenses. The pixel lenses is disposed on pixel areas of a device substrate. An upper barrier pattern is disposed between the device substrate and the pixel lenses. The upper barrier pattern includes upper openings overlapping with the pixel lenses. Each of the pixel areas includes a first emission area and a second emission area, which are disposed side by side. The pixel lens of each pixel lens includes a lens central point disposed between the first emission area and the second emission area of the corresponding pixel area. Each of the first emission area and the second emission area includes a first region overlapping with the corresponding upper opening and a second region disposed outside the upper openings. Thus, the quality of an image generated by the display apparatus and shared with users located in different directions is improved.

An organic light emitting display apparatus is disclosed, including a substrate having a plurality of subpixels; a pixel defining layer on the substrate and defining a light emitting opening; a partition wall on the pixel defining layer and defining a partition wall opening corresponding to the light emitting opening; and a light emitting element corresponding to the partition wall opening. The partition wall opening includes a center opening, a first partition wall opening extending in a first direction from the center opening, a second partition wall opening extending in a second direction overlapping the first direction, and a third partition wall opening extending in a third direction overlapping both the first and second directions. The plurality of subpixels is respectively disposed in the first, second, and third partition wall openings, enabling separation and arrangement of subpixels within a shared structure for efficient light emission without using a fine metal mask.

Systems, methods, and devices for bony fusion are disclosed. A threaded cannulated implant may be inserted into a target space, such as in the sacroiliac joint. The implant may have a distal section, a proximal section, and a central section between the distal section and the proximal section. The distal section may comprise cutting threads and flutes for self-drilling the implant into bone. The proximal section may be configured to couple to an insertion instrument for the implant. The central section may have a lattice structure through which bone graft may flow to promote bone ingrowth. A solid core region may be located inwards from the lattice structure. The central section may also have openings through the core region to connect the lattice structure to the cannula.

Various embodiments relate generally to autonomous vehicles and associated mechanical, electrical and electronic hardware, computer software and systems, and wired and wireless network communications to provide an autonomous vehicle fleet as a service. In particular, a method may include receiving, from a user device, a ride request to transport a user to a destination from an origin location through an autonomous vehicle system service. Based on the origin location associated with the request, an autonomous vehicle system may be selected from a fleet of autonomous vehicles to execute the ride request. The fleet may be managed by the autonomous vehicle system service. The ride request may then be provided to the autonomous vehicle system, and information about the autonomous vehicle system may also be provided to the user device.