Abstract: A switchable device for changing the opacity of at least a portion of a glazing is described. The switchable device comprises at least two (a first and a second) switchable regions in electrical communication with at least two (a first and a second) electrical connector regions. Each switchable region comprises an electrically actuated variable opacity layer between a first electrode and a second electrode, the first switchable region being arranged relative to the second switchable region such that upon connecting the first and second electrical connector regions to a suitable power supply, the opacity of the first and second switchable region changes such that at least two (a first and a second) portions of the switchable device have a change of opacity, the first portion of the switchable device having a different opacity to the second portion of the switchable device.

Abstract: A guide shoe (1), adapted for connection to an end of a tubular for deployment in a wellbore of an oil, gas, or water well, includes: a body (10) having an axis (2) and being adapted for connection to the tubular such that torque can be transmitted between the tubular and the body (10); a nose (50) adapted for connection to the body (10); a locking mechanism (30) adapted to shift between an unlocked configuration, in which rotation of the nose (50) around the axis of the body (10) is permitted in first and second directions, and a locked configuration in which rotation of the nose (50) around the axis of the body (10) is restricted in at least one of the first and second directions. The guide shoe includes a resilient biasing device (20) urging the nose (50) into the locked configuration.

Abstract: A method and system for determining the time of delivery of an order is performed by a service system. The system receives the order from a customer device, and maps the customer telephone number to a routing telephone number. The system then sends the order with the routing telephone number to a provider, such as a restaurant. The provider prepares the order. A deliveryman calls the routing telephone number when he delivers the order to the customer. The system sets the reception time of the call as the time of delivery of the order. The system then forwards the call to the customer.

Abstract: An example method may include generating an alternating current (AC) output at a power source within a borehole in a subterranean formation. An electrical component may receive a direct current (DC) output from a converter circuit coupled to the power source and the electrical component. One or more measurements corresponding to the power source, the converter circuit, the electrical component, or a protection circuit coupled to the converter circuit may be received. Blocking devices within the protection circuit may be selectively caused to block current flow in the converter circuit based, at least in part, on the one or more received measurements.

Abstract: The present disclosure provides mixed molybdenum oxide catalysts, methods for preparing epoxides from olefins and CO2 using them, and methods of making the mixed molybdenum oxide catalysts by impregnation or co-precipitation. In a preferred embodiment, the mixed molybdenum oxide catalysts are silver/molybdenum oxide catalysts, ruthenium/molybdenum oxide catalysts, or a combination thereof.

Abstract: A centralizer for use in a wellbore includes: a body for disposing around a periphery of a casing or liner string, the body having a plurality of bow springs biased toward an expanded position; a mandrel for disposing around the periphery of the casing or liner string; a piston disposed around the mandrel and movable between a locked position and a release position; a plurality of dogs, each dog mounted to or formed integrally with the respective bow spring and captured by the piston in the locked position, thereby keeping the bow springs in a retracted position; an atmospheric chamber formed between the piston and the mandrel; and a fastener for releasably connecting the piston to the mandrel in the locked position.

Abstract: A carrier system may be used to position a wireline tool within a wellbore. The system includes a wireline tool carrier disposed on the end of a coiled tubing string. The wireline carrier tool includes a tubular member and stabilizers which secure the wireline tool within an internal passageway of the tubular member. The internal passageway defines a fluid flow path which facilitates fluid communication between the coiled tubing string and any device or wellbore portion below the wireline tool carrier. As the system is advanced within the wellbore fluid is conveyed around the wireline tool through the fluid flow path to remove obstructions that would otherwise inhibit the placement of the wireline tool within a deviated wellbore. Fluid conveyed through the system and around the wireline tool may also be used to perform various well stimulation and intervention functions.

Abstract: A guide shoe (1), adapted for connection to an end of a tubular for deployment in a wellbore of an oil, gas, or water well, includes: a body (10) having an axis (2) and being adapted for connection to the tubular such that torque can be transmitted between the tubular and the body (10); a nose (50) adapted for connection to the body (10); a locking mechanism (30) adapted to shift between an unlocked configuration, in which rotation of the nose (50) around the axis of the body (10) is permitted in first and second directions, and a locked configuration in which rotation of the nose (50) around the axis of the body (10) is restricted in at least one of the first and second directions. The guide shoe includes a resilient biasing device (20) urging the nose (50) into the locked configuration.

Abstract: An arrangement for the preparation of the proximal surface of the tibia and/or the proximal surface of the distal end of the femur and the posterior femoral condyle for a tibia component and/or a femoral component of a prosthetic knee joint. The arrangement includes an electronic system arrangement that receives or measures data information to which the electronic system can utilise this information to communicate control of a blade and/or cutting implement to resect the proximal surface of the tibia and/or distal end of the femur and/or the posterior femoral condyle to required reference plane cuts that provide for balanced angular movement between the femoral component and the tibia component of the prosthetic knee joint throughout an arc of motion from extension, mid-flexion and flexion.

Abstract: A computer system that monitors interactions with a virtual reality environment includes a graphics processor that generates images representing the virtual reality environment, a headset that displays the generated images to a user interacting with the virtual reality environment, a sensor that detects motion of the user as the user interacts with the virtual reality environment, a gaze controller that calculates a gaze of the user based on the detected motion of the user and identifies objects in the virtual reality environment with which the user interacts based on the calculated gaze of the user, and an interaction monitor that quantifies interactions of the user with an identified object in the virtual reality environment based on transactions on a distributed ledger. The transactions comprise logic expressions that define an automatic execution triggered by the interaction of the user with the object in the virtual reality environment.

Abstract: The disclosed embodiments include a rotating survey tool. The rotating survey tool includes a first sensor array that in operation collects a first set of survey measurements during a downhole drilling operation. Additionally, the rotating survey tool includes a second sensor array directly coupled to the first sensor array that in operation collects a second set of survey measurements while a drill bit drills during the downhole drilling operation. Further, the second set of survey measurements has a greater base accuracy than the first set of survey measurements.

Abstract: An arrangement for providing the proximal surface of the distal end of the femur and the posterior femoral condyle of the femur for a femoral component of a prosthetic knee joint, said arrangement including an alignment clamp mountable to the femur such that a vertical arm of the alignment clamp includes user-operable lateral adjustable extension tabs and a horizontal arm of the alignment clamp that includes user-operable height adjustable extension tabs wherein the lateral and height adjustable tabs engage with a front plate and a base plate which define out reference planes and/or an axis that can be used in establishing the alignment for the definitive resection cuts to the distal end of the femur and the posterior femoral condyle of the femur.

Abstract: An apparatus, method, and system assess the trustworthiness of a design representation while maintaining its confidentiality and thwarting attempts at unauthorized access, misappropriation, and reverse engineering of confidential proprietary aspects of the design representation and/or its bit stream. A utility/tool is provided for trust assessment and verification of designs and/or bit streams. The utility/tool may be instantiated on a semiconductor device or implemented as a utility executable on a mobile computing device or other information processing system, apparatus, or network.

Abstract: An arrangement for the preparation of the proximal surface of the tibia for a tibia component of a prosthetic knee joint, wherein the arrangement includes a preparation plate that assists in defining a reference plane. A cutting guide arrangement includes an indicator that provides orientation for a cutting blade or saw to cut the final bone resection of the proximal surface of the tibia the same as the reference plane. There is also a mounting arrangement between the joint liner and the cutting guide arrangement, so that in a first mounting position the indicator of the cutting guide is aligned with the same referenced plane defined by the underside of the joint liner and wherein the mounting arrangement also provides a second mounted position wherein the indicator of the cutting guide is aligned with the same referenced plane orientation of the underside of the joint liner but below the initial resected proximal surface of the tibia where the final resection of bone will take place.

Abstract: A valve assembly (1) for use particularly in a deviated wellbore of an oil, gas or water well comprises a body (50) with an axis and first and second resiliently deformable seats (20, 25) to seat a valve closure member (10a) such as a ball, the seats being deformable to allow passage of the ball at different first and second fluid pressures acting on the seated valve closure member. The first and second seats are axially spaced from one another on a control sleeve (60) on opposite sides of an inner end of a selectively operable fluid outlet conduit connecting the bore with an external surface of the valve assembly, and operation of the valve assembly at pressures between the first and second pressures opens and closes the outlet while maintaining the ball between the first and second seats.

Abstract: The disclosed embodiments include a rotating survey tool. The rotating survey tool includes a first sensor array that in operation collects a first set of survey measurements during a downhole drilling operation. Additionally, the rotating survey tool includes a second sensor array directly coupled to the first sensor array that in operation collects a second set of survey measurements while a drill bit drills during the downhole drilling operation. Further, the second set of survey measurements has a greater base accuracy than the first set of survey measurements.

Abstract: A device may participate in a shared data state in which editing operations performed locally are distributed and synchronized with other devices participating in the shared data state. Data may be maintained in log-structured storage files on each device. Changes made locally may be conditionally appended to log-structured storage and committed or rolled back during synchronization. Devices may exchange sets of related change descriptors preceded by associated contextual information. Conflicts may be resolved through application of conflict resolution rules or through a user-involved process. User notification of conflict resolution may be based on user intent inferred from contextual information and associated change descriptors.

Abstract: A container having a battery and one or more active systems for maintaining temperature or other characteristics of goods stored within the container relies on a battery to maintain those active systems during transit. The size of the battery required for such applications may be reduced by providing access to external power during a shipment cycle. For example, shelves within transit vehicles or warehouses can supply electricity to the active systems via a wireless or wired connection, or they may recharge the container's battery, or both. The container may also have data bridging capabilities that use short range wireless technology to communicate with nearby devices that have access to other data streams, such as GPS data and internet connectivity. When bridged with a provider, the container may have access to new data streams, or may be able to disable internal devices providing those same data streams to conserve power.

Abstract: A table apparatus includes a table device and a table support structure that is connected to the table device. The table support structure includes a carrier structure and a table support linkage. The carrier structure is connected to the table support linkage via a single pivot connection. The table device is pivotable about only the single pivot connection.

Abstract: An apparatus, method and system are disclosed which may be used for assessing the trustworthiness of a particular proprietary microelectronics device design representation in a manner that will maintain its confidentiality and, among other things, thwart attempts at unauthorized access, misappropriation and reverse engineering of the confidential proprietary aspects contained in the design representation and/or its bit stream design implementation format. The disclosed method includes performing a process for assessing/verifying a particular microelectronics device design representation and then providing some indication of the trustworthiness of that representation. An example utility/tool which implements the disclosed method is described that is particularly useful for trust assessment and verification of FPGA designs.