Abstract: Techniques and materials provide for thermal insulation for tanks, such as tanks for use in space flight missions. Microporous glass blocks may be used as an insulative bridge between spray-on foam insulation and a stainless steel wall of a tank, for example. Blocks of microporous glass may be mechanically attached to the interior of the tank, after which spray-on foam insulation is applied directly to the blocks. The bridging insulation provided by the microporous glass blocks allows the temperature of the stainless steel tank wall to exceed the usable temperature of the spray-on foam insulation by preventing a substantial portion of heat of the stainless steel wall from reaching the spray-on foam insulation. An insulated tank may instead comprise a tank wall that is a honeycomb-structured composite layer including an exterior skin, an interior skin, and a core that presents a relatively long thermal path, for improved thermal insulation.

Abstract: Techniques and materials provide for thermal insulation for tanks, such as tanks for use in space flight missions. Microporous glass blocks may be used as an insulative bridge between spray-on foam insulation and a stainless steel wall of a tank, for example. Blocks of microporous glass may be mechanically attached to the interior of the tank, after which spray-on foam insulation is applied directly to the blocks. The bridging insulation provided by the microporous glass blocks allows the temperature of the stainless steel tank wall to exceed the usable temperature of the spray-on foam insulation by preventing a substantial portion of heat of the stainless steel wall from reaching the spray-on foam insulation. An insulated tank may instead comprise a tank wall that is a sandwich-structured composite layer including an exterior skin, an interior skin, and a core that presents a relatively long thermal path, for improved thermal insulation.

Abstract: In some implementations, a controller may monitor, during a ramp up period of a fluid pump driven by a motor that is controlled by a variable frequency drive (VFD), an intake pressure of the fluid pump and a discharge pressure of the fluid pump. The controller may detect, based on monitoring the intake pressure and the discharge pressure, whether the intake pressure satisfies an intake pressure threshold or the discharge pressure satisfies a discharge pressure threshold. The controller may cause, via the VFD, reduction of a torque of the motor based on the intake pressure satisfying the intake pressure threshold or the discharge pressure satisfying the discharge pressure threshold.

Abstract: Various examples are provided related to composite lightguides which can be used for augmented reality and other augmented display applications. In one example, a composite lightguide includes a support substrate including a surface and a lightguide layer disposed on the surface of the support substrate. The lightguide layer can have a density that is greater than the density of the support substrate. For example, the density of the lightguide layer can be greater than twice the density of the support substrate. The lightguide layer can have a thickness that is about 25% or less than the thickness of the support substrate.

Abstract: In some implementations, a controller may obtain an indication of a first crank angle associated with a first pump, of a dual-pump single-power source system, that is mechanically connected to a power source of the dual-pump single-power source system via a first clutch. The controller may obtain an indication of a second crank angle associated with a second pump, of the dual-pump single-power source system, that is mechanically connected to the power source via a second clutch. The controller may determine that a difference between the first crank angle and the second crank angle is outside of a tolerance of a crank angle difference value. The controller may modulate a fluid pressure associated with at least one of the first clutch or the second clutch to cause the difference between the first crank angle and the second crank angle to be within the tolerance of the crank angle difference value.

Abstract: A rotary joint is disclosed having a head, a non-rotating component, and a rotating component. The head has a first fluid channel and a sensor port on an exterior of the head in communication with the first fluid channel. The non-rotating component is connected to the head and has a second fluid channel in communication with the first fluid channel. The rotating component is mounted to rotate about the non-rotating component.

Abstract: In some implementations, a controller may monitor, in connection with a fluid pump driven by a motor that is controlled by a variable frequency drive and over a time period, a torque of the motor to obtain torque data, a speed of the motor to obtain speed data, and a pressure of the fluid pump to obtain pressure data. The controller may determine that the fluid pump is associated with a leak of a particular severity level based on the torque data indicating a deviation that satisfies a first threshold, the speed data indicating a deviation that satisfies a second threshold, and the pressure data indicating a deviation that satisfies a third threshold. The controller may perform at least one operation based on the particular severity level of the leak.

Abstract: A bushing includes a hollow metal insert and a rubber element receiving the hollow cylindrical metal insert therein. The rubber element includes an inner snubber including a first plurality of ridges, a web portion extending from the inner snubber and looping back/folded to an outer snubber disposed outward of the inner snubber. The outer snubber includes a second plurality of ridges interleaved with the first plurality of ridges. A can having an outer wall receives the rubber element therein. A threaded stud extends through the hollow metal insert and includes a first end configured to be engaged with a component to be supported.

Abstract: An article of footwear incorporating an upper formed by a forefoot component, a knitted workpiece, and a heel component is described. Each of the forefoot component, the knitted workpiece, and the heel component are separate from each other and joined along connection areas. Reinforcement elements cover the connection areas. In one embodiment, the knitted workpiece includes a collar portion and a throat portion extending from a forward end of the collar portion. The knitted workpiece also includes a medial lobe extending from one side of the throat portion and a lateral lobe extending from an opposite side of the throat portion from the medial lobe. The collar portion, the throat portion, the medial lobe, and the lateral lobe form a single unified knitted workpiece.

Abstract: In some implementations, a controller may obtain a setting for a maximum discharge pressure associated with a fluid pump that is to be allowed during a hydraulic fracturing operation. The fluid pump may be driven by a motor that is controlled by a variable frequency drive (VFD). The controller may determine a maximum torque for the motor that achieves the maximum discharge pressure. The controller may cause, via the VFD, adjustment to a speed of the motor to maintain a torque of the motor at or below the maximum torque for the motor.

Abstract: Exemplary methods are provided for real-time assessment of a potential risk of an infectious disease, including receiving a predetermined acceptable range for an aspect of a human user's physiological measurement data, receiving a predetermined acceptable answer for a survey response question, securely receiving an aspect of the human user's physiological measurement data, determining if the aspect of the human user's physiological measurement data is within the predetermined acceptable range, if the aspect of the human user's physiological measurement data is within the predetermined acceptable range, transmitting to the human user a survey comprising a question, if the aspect of the human user's physiological measurement data is not within the predetermined acceptable range, transmitting an active alert and not providing the human user with the survey comprising a question, and if the human user fails to transmit an acceptable answer to the survey comprising the question, transmitting an active alert.

Abstract: An optical device includes a stack that includes a first curved optical element stacked with a second curved optical element. The second curved optical element propagates light by total internal reflection. The stack also includes an incoupling diffractive grating that incouples the light into the second optical element and an outcoupling diffractive grating optically coupled to the incoupling diffractive grating through the second curved optical element. The outcoupling diffractive grating directs the light. The first curved optical element has a first refractive index, the second curved optical element has a second refractive index, and the first refractive index is different from the second refractive index by approximately 0.15 to 1.2.

Abstract: Disclosed are examples of systems, apparatus, methods and computer program products for sharing and publishing files. In one aspect, the database system can maintain a user database, a file database and a library. The database system can receive a first request initiated by a first user to share a first file with one or more second users and, responsive to the first request, enable a second set of one or more permissions for each of the second users. The database system also can receive a second request initiated by the first user to publish the first file to the library and, responsive to the second request, publish the first file to the library. The database system additionally can restrict access to the published file based on permissions associated with the library.

Abstract: In some implementations, a controller may obtain a setting for a target discharge pressure associated with a fluid pump driven by a motor that is controlled by a variable frequency drive (VFD). The target discharge pressure may be for use in a pressure test of a system that includes the fluid pump. The controller may determine a target torque for the motor that achieves the target discharge pressure. The controller may cause, via the VFD and in connection with the pressure test, adjustment to a speed of the motor to achieve the target torque for the motor.

Abstract: The present invention relates to compounds and pharmaceutically acceptable salts or solvates thereof for use in the treatment or prevention of fascioliasis. Some of these compounds are novel per se and also have activity as inhibitors of Schistosoma growth. The invention also relates to pharmaceutical compositions comprising such novel compounds, salts or solvates and to the use of such novel compounds as medicaments, in particular in the treatment or prevention of schistosomiasis, also known as bilharzia.

Abstract: An article of footwear incorporating an upper formed by a forefoot component, a knitted workpiece, and a heel component is described. Each of the forefoot component, the knitted workpiece, and the heel component are separate from each other and joined along connection areas. Reinforcement elements cover the connection areas. In one embodiment, the knitted workpiece includes a collar portion and a throat portion extending from a forward end of the collar portion. The knitted workpiece also includes a medial lobe extending from one side of the throat portion and a lateral lobe extending from an opposite side of the throat portion from the medial lobe. The collar portion, the throat portion, the medial lobe, and the lateral lobe form a single unified knitted workpiece.

Abstract: Disclosed are examples of systems, apparatus, methods and computer program products for sharing and publishing files. In one aspect, the database system can maintain a user database, a file database and a library. The database system can receive a first request initiated by a first user to share a first file with one or more second users and, responsive to the first request, enable a second set of one or more permissions for each of the second users. The database system also can receive a second request initiated by the first user to publish the first file to the library and, responsive to the second request, publish the first file to the library. The database system additionally can restrict access to the published file based on permissions associated with the library.

Abstract: An article of footwear incorporating an upper formed by a forefoot component, a knitted workpiece, and a heel component is described. Each of the forefoot component, the knitted workpiece, and the heel component are separate from each other and joined along connection areas. Reinforcement elements cover the connection areas. In one embodiment, the knitted workpiece includes a collar portion and a throat portion extending from a forward end of the collar portion. The knitted workpiece also includes a medial lobe extending from one side of the throat portion and a lateral lobe extending from an opposite side of the throat portion from the medial lobe. The collar portion, the throat portion, the medial lobe, and the lateral lobe form a single unified knitted workpiece.

Abstract: A semiconductor device including a first dielectric layer and a second dielectric layer is formed by forming an inhibitor layer over a semiconductor material. The inhibitor layer includes at least silicon and nitrogen. The semiconductor material is heated in an oxygen-containing ambient which oxidizes the inhibitor layer and forms the first dielectric layer which includes the oxidized inhibitor layer, and oxidizes the semiconductor material to form the second dielectric layer. The second dielectric layer is thicker than, the first dielectric layer. The first dielectric layer and the second dielectric layer each include at least 90 weight percent silicon dioxide and less than 1 weight percent nitrogen. The first dielectric layer and the second dielectric layer may be used to form gate dielectric layers for a first MOS transistor and a second MOS transistor that operates at a higher voltage than the first MOS transistor.

Abstract: An article of footwear incorporating an upper formed by a forefoot component, a knitted workpiece, and a heel component is described. Each of the forefoot component, the knitted workpiece, and the heel component are separate from each other and joined along connection areas. Reinforcement elements cover the connection areas. In one embodiment, the knitted workpiece includes a collar portion and a throat portion extending from a forward end of the collar portion. The knitted workpiece also includes a medial lobe extending from one side of the throat portion and a lateral lobe extending from an opposite side of the throat portion from the medial lobe. The collar portion, the throat portion, the medial lobe, and the lateral lobe form a single unified knitted workpiece.