Abstract: A method of manufacturing an LED device comprises the steps of: providing a template comprising a first porous region of III-nitride material; forming a first LED structure on the template above the first porous region; and forming a second LED structure on the template, in which the second LED structure is not positioned above the first porous region. An LED device comprises a first LED structure, over a first porous region of III-nitride material; and a second LED structure which is not positioned over the first porous region. A three colour LED device is also provided.

Abstract: Techniques for increasing security for pre-authenticated links are disclosed herein. Computing systems that generate pre-authenticated links are configured to assign an entity identifier to pre-authenticated links to specify an entity permitted to access respective data through the pre-authenticated link. When activating a respective pre-authenticated link, an entity attaches an entity token to the request to prove an identity of the requesting entity. If the identity from the entity token matches the entity identifier, the computing system may grant access to the respective data.

Abstract: Methods for operating drill strings in a wellbore include providing a drilling apparatus that includes a Kelly drive system for rotating the drill string that includes a bottom hole assembly (BHA) and a Kelly engaged with the Kelly drive system. The BHA includes a hydraulically driven rotating string reamer coupled to the drill string uphole from a drill bit and a near-bit reamer. The hydraulically driven rotating string reamer includes a hydraulic drive operatively coupled to a string reamer. The methods include translating the BHA axially through the wellbore and, while translating the BHA, circulating drilling fluid through the drill string, which causes the hydraulic drive to rotate the string reamer relative to the drill string, drill bit, and near-bit reamer. Rotation of the string reamer by the hydraulic drive reams away imperfections extending radially inward from a wellbore wall of the wellbore.

Abstract: An LED device comprises a plurality of light-emitting diodes (LEDs), and an optical filter arranged to filter light emitted by the plurality of LEDs. The optical filter comprises a first region arranged to filter light emitted from a first portion of the plurality of LEDs, in which the first region of the optical filter comprises a Distributed Bragg Reflector (DBR) configured to prevent transmission of light of a predetermined wavelength ?1. The LED device may comprise a colour-conversion material positioned between the first portion of the LEDs and the DBR, the colour-conversion material being configured to emit light at one or more wavelengths different from the emission wavelength ?1 of the first portion of LEDs. An optical filter and a method of manufacture are also provided.

Abstract: Method for a user equipment, UE), to communicate with a wireless network via multiple cells. The method includes detecting (1210) failure of a first beam associated with a first cell of the plurality of cells and determining (1230) availability or unavailability of other beams, than the first beam, that are associated with the first cell. The method further includes transmitting (1280), to one of the multiple cells, a message indicating availability or unavailability of the other beams associated with the first cell. The message is transmitted within a first duration (1220) after detecting the failure of the first beam, the first duration based on a maximum time for determining availability of the other beams and on a periodicity of resources allocated for beam failure reporting in the cell where the message is transmitted. Other embodiments include complementary method for a network node, UE and network node configured to perform such method.

Abstract: A semiconductor laser (1) is provided that includes a semiconductor layer sequence in which an active zone for generating laser radiation is located. A ridge waveguide is formed as an elevation from the semiconductor layer sequence. An electrical contact layer is located directly on the ridge waveguide. A metallic electrical connection region is located directly on the contact layer and is configured for external electrical connection of the semiconductor laser. A metallic breakage coating extends directly to facets of the semiconductor layer sequence and is arranged on the ridge waveguide. The breakage coating is electrically functionless and includes comprises a lower speed of sound for a breaking wave than the semiconductor layer sequence in the region of the ridge waveguide.

Abstract: An aerosol-assisted chemical vapor-deposition (AACVD) method of making NiPd nano-alloy electrocatalyst. The method includes subjecting a mixture including Pd(II)acetylacetonate Pd(C5H7O2)2, Ni(II)acetylacetonate Ni(C5H7O2)2 and a solvent to AACVD, to form a NiPd nano-alloy electrocatalyst. The NiPd nano-alloy electrocatalyst is formed on a surface of a porous metallic substrate in a single-step. The electrocatalyst of the present disclosure exhibits excellent OER activity, demonstrates excellent durability during prolonged water electrolysis experiments and imposing kinetics for OER.

Abstract: A motor-driven trailer and towbar system includes a towbar having a vehicle side end configured to connect with the vehicle and a trailer side end configured to connect with a trailer coupling. The towbar is pivotably coupled to the trailer and configured to pivot along a pivoting path (P) between a lowered position (L) and a raised position (R) with respect to the trailer. At least one first sensor element is configured to detect a position of the towbar along the pivoting path (P). A control unit (TCU) is in communication with the at least one first sensor element and is configured to switch the system between an operating mode and a parking mode. The system is switched into the parking mode when the towbar is in a raised position (R) and is switched into the operating mode when the towbar is in a lowered position (L).

Abstract: Bioreactors for production and recovery of medium chain carboxylates from organic biomass are disclosed. Methods for improved production and recovery of medium chain carboxylates from organic biomass are also disclosed. The bioreactors can be used as a chain-elongation bioreactor, and a method of use thereof results in improved production and recovery of medium chain carboxylates from organic biomass. The bioreactor includes a shell defined by one or more walls and a length, and a plurality of porous hollow fiber membranes placed inside the reactor for continuous liquid-liquid extraction, as well as granular activated carbon (GAC) as biocarriers. The plurality of hollow fiber membranes is mounted such that a percentage of the length of the shell remains unoccupied by the plurality of porous hollow fiber membranes.

Abstract: A vehicle device may execute one or more neural networks (and/or other artificial intelligence), such as based on input from one or more of the cameras and/or other sensors associated with the dash cam, to intelligently detect safety events in real-time. The vehicle device may further pass the input to a backend server for further analysis and the backend server can detect safety events based on the input. The vehicle device may analyze the output of the vehicle device and the output of the backend server to determine whether the output of the vehicle device is correct. If the output of the vehicle device is incorrect, the vehicle device can adjust how the vehicle device identifies safety events.

Abstract: A wireless device is configured to receive an activation command that commands the wireless device to activate a serving cell. The wireless device is configured to activate the serving cell within a maximum delay since receiving the activation command. The maximum delay depends on whether there is at least one other serving cell already activated for the wireless device in the same frequency band as that in which the serving cell is to be activated.

Abstract: A rapid method of synthesizing nanoflowers made of nanoflakes of nickel molybdate (NiMoO4) directly on nickel foam (NF) through an aerosol-assisted chemical vapor deposition (AACVD) process is disclosed. The nickel molybdate nanoflowers were grown on NF by varying the deposition time for 60 and 120 min at a fixed temperature of 480° C. and their efficiency was investigated as oxygen evolution reaction (OER) catalysts in 1 M KOH electrolyte. The NiMoO4 nanoflowers of NF obtained after 60 minutes of AACVD process showed OER performance with lowest overpotential of 320 mV to reach standard current density of 10 mA cm?2. The catalyst continuously performed the OER for 15 h, signifying its prominent stability under electrochemical conditions.

Abstract: A synthetic methodology for robust, nanostructured films of cobalt oxide over metal evaporated gold or similar material layer of, e.g., 50 nm, directly onto glass or other substrates via aerosol assisted chemical vapor deposition (AACVD). This approach allows film growth rates in the range of, e.g., 0.8 nm/s, using a commercially available precursor, which is ~10-fold the rate of electrochemical synthetic routes. Thus, 250 nm thick cobalt oxide films may be generated in only 5 minutes of deposition time. The water oxidation reaction for such films may start at ~0.6 V vs Ag/AgCl with current density of 10 mA/cm2 and is achieved at ~0.75 V corresponding to an overpotential of 484 mV. This current density is further increased to 60 mA/cm2 at ~1.5 V (vs Ag/AgCl). Electrochemically active surface area (ECSA) calculations indicate that the synergy between a Au-film, acting as electron sink, and the cobalt oxide film(s), acting as catalytic layer(s), are more pronounced than the surface area effects.

Abstract: Embodiments of the present disclosure provide methods and apparatus for performing a measurement associated to a resource. A method performed at a terminal device comprises determining (S101) whether a first condition or a second condition is met, based on a communication quality; and performing (S102) a measurement associated to a resource, when the first condition is met, or stopping (S103) the measurement associated to the resource, when the second condition is met. According to embodiments of the present disclosure, the measurement may be performed or stopped under a first condition or a second condition. The relevant time and power may be saved.

Abstract: A CaTiO3—TiO2 composite electrode and method of making is described. The composite electrode comprises a substrate with an average 2-12 ?m thick layer of CaTiO3—TiO2 composite particles having average diameters of 0.2-2.2 ?m. The method of making the composite electrode involves contacting the substrate with an aerosol comprising a solvent, a calcium complex, and a titanium complex. The CaTiO3—TiO2 composite electrode is capable of being used in a photoelectrochemical cell for water splitting.

Abstract: A CaTiO3—TiO2 composite electrode and method of making is described. The composite electrode comprises a substrate with an average 2-12 ?m thick layer of CaTiO3—TiO2 composite particles having average diameters of 0.2-2.2 ?m. The method of making the composite electrode involves contacting the substrate with an aerosol comprising a solvent, a calcium complex, and a titanium complex. The CaTiO3—TiO2 composite electrode is capable of being used in a photoelectrochemical cell for water splitting.

Abstract: A method of manufacturing an LED device comprises the steps of: forming an n-doped connecting layer of III-nitride material over a porous region of III-nitride material; forming a first electrically-insulating mask layer on the n-doped connecting layer; removing a portion of the first mask layer to expose a first exposed region of the n-doped connecting layer; forming a first LED structure, which is configured to emit light at a first emission wavelength, on the first exposed region of the n-doped connecting layer; forming a second electrically-insulating mask layer over the first LED structure and the n-doped connecting layer; removing a portion of the second mask layer to expose a second exposed region of the n-doped connecting layer; and forming a second LED structure, which is configured to emit light at a second emission wavelength different from the first emission wavelength, on the second exposed region of the n-doped connecting layer.

Abstract: A light emitting diode (LED) comprises: an n-doped portion; a p-doped portion; and a light emitting region located between the n-doped portion and the p-doped portion. The light emitting region comprises: a light-emitting layer which emits light at a peak wavelength between 400 and 599 nm under electrical bias thereacross; a III-nitride layer located on the light-emitting layer; and a III-nitride barrier layer located on the III-nitride layer. The light emitting diode comprises a porous region of III-nitride material. An LED array and a method of manufacturing an LED with a peak emission wavelength between 400 nm and 599 nm under electrical bias are also provided.

Abstract: A threshold condition formed relative to the strongest peak (e.g., in a signaled DL-PRS-specific search window) is used in the search for the first peak to be used for Time of Arrival (TOA) estimation. Such a threshold condition may be used with DL-PRSs that are homogenous or inhomogeneous, and in each of these combined (or not) with cyclic shifts. In so doing, the solutions 0 (100, 200, 300, 400) presented herein avoid detecting false peaks.

Abstract: An analytics reporting system to perform operations that include: aggregating sensor data collected from a plurality of sensor devices within a database, the sensor data comprising a set of values that correspond with a metric; generating a threshold value based on the set of values that correspond with the metric; accessing a portion of the sensor data based on an identifier associated with the portion of the sensor data; determining the portion of the sensor data transgresses the threshold value; and generating a report that comprises a display of the portion of the sensor data based on the determining that the portion of the sensor data transgresses the threshold value.