Abstract: Surrogate training can include receiving a parameterization of a physical system, where the physical system includes real physical components and the parameterization having corresponding target property in the physical system. The parameterization can be input into a neural network, where the neural network generates a different dimensional parameterization based on the input parameterization. The different dimensional parameterization can be input to a physical model that approximates the physical system. The physical model can be run using the different dimensional parameterization, where the physical model generates an output solution based on the different dimensional parameterization input to the physical model. Based on the output solution and the target property, the neural network can be trained to generate the different dimensional parameterization.

Abstract: An optical coupler in a photonic chip is configured to couple an optical port to an array of optical phase shifters in the chip. An optical amplifier module is optically coupled to a portion of the chip to receive phase shifted optical waves, and is configured to: provide, after propagation of the phase shifted optical waves through different respective gain regions, amplified optical waves that optically interfere with each other starting at an emission plane to form an optical phased array output beam, and provide an arrangement of the gain regions such that (1) at least two phase shifted optical waves propagating through adjacent gain regions have optical path lengths between the optical port and the emission plane that are substantially equal to each other, and (2) a pitch of the gain regions is substantially equal to a pitch of the amplified optical waves at the emission plane.

Abstract: Aspects of the present disclosure describe systems, methods, and structures for aberration correction of optical phased arrays that employ a corrective optical path difference (OPD) in the near-field of an OPA to correct or cancel out aberrations in emitted beams of the OPA including those reaching far-field distances by generating a spatially-varying OPD across the aperture of the OPA that is substantially equal and opposite to an equivalent OPD of the aberration(s).

Abstract: An event detection unit (EDU) for detecting an explosive event is provided. The EDU includes different types of sensors for measuring characteristics of an explosive event. The EDU includes an event notification component. The EDU also includes a processor that receives a measurement from the sensors and generates a combined non-event probability and a combined event probability based on that measurement that indicates a likelihood that an explosive event has not occurred or has occurred. The processor determines whether an explosive event has occurred based on the non-event probabilities and event probabilities. When an explosive event has been determined to occur, the processor directs the event notification component to output a notification that an explosive event has occurred.

Abstract: A golf club head having discreet regions of specific mass relationships, including a lightweight forward portion, to achieve specific mass properties and performance.

Abstract: An apparatus comprises: a first integrated circuit comprising: a plurality of sets of optical waveguides, each set of optical waveguides including a plurality of optical waveguide segments, and a plurality of optical emitter elements arranged over a first surface of the first integrated circuit, each optical emitter element coupled to a distal end of one of the optical waveguide segments; and a second integrated circuit comprising: a plurality of optical phase shifters that each provide a phase-shifted optical wave that is coupled to the first integrated circuit from a first edge surface of the second integrated circuit. The first edge surface of the second integrated circuit is in proximity to a row of proximal ends of the optical waveguide segments of a first set of the plurality of sets of optical waveguides.

Abstract: Techniques are provided for operational situation vehicle control, and include determining action and context data for one or more vehicle operations in one or more operational situations, training vehicle control rules for those operational situations, and using those vehicle control rules to control vehicles in compatible operational situations.

Abstract: Techniques for generating a dosing protocol for an individual include receiving first data that indicates, for a dose response to a medicament, a non-linear mixed effects (NLME) model of a population with at least one distribution parameter characterizing variations in the population based on an observable property of individuals within the population. At least one of a structural model or a dynamical model of the NLME model is based on training weights of a universal approximator on a least a subset of the population. A candidate dose regimen is evaluated for an expected response by a subject based on the NLME model and one or more properties of the subject. When the expected response is therapeutic, the candidate dose regime of the medicament is administered to the subject.

Abstract: An apparatus comprises an optical cavity formed on a substrate and defining a round-trip optical path, an interface positioning at least a portion of a gain medium to provide an active portion of the round-trip optical path over which the gain medium provides sufficient gain for the optical wave to propagate around the round-trip optical path in a single mode, an output coupler coupling a portion of the optical wave out of the optical cavity from a passive portion of the round-trip optical path into a waveguide segment formed on the substrate, one or more tap couplers each diverting less than 50% of optical power from the waveguide segment, and one or more on-chip modules each receiving diverted optical power from at least one of the tap couplers and providing information associated with a laser that comprises the optical cavity and the gain medium.

Abstract: Methods, systems, and devices for input/output line sharing for memory subarrays are described. I/O lines may be shared across subarrays, which may correspond to separate memory tiles. The sharing of I/O lines may allow an I/O line to carry data from one subarray in response to access commands associated with one address range, and to carry data from another subarray in response to access commands associated with another address range. In some cases, sense amplifiers and other components may also be shared across subarrays, including across subarrays in different banks. The sharing of I/O lines may, in some cases, support activating only a subset of subarrays in a bank when accessing data stored in the bank, which may provide power savings.

Abstract: Light is provided to optical antennas (OAs) separated by a first set of spacings in a first OPA. Phases of light provided to respective OAs are controlled to form a transmitted beam whose angle is steered so that first and second lobes of a first angular intensity distribution (AID) scan over first and second portions of a region, respectively. Light is received from OAs separated by a second set of spacings in a second OPA into which light is received from directions associated with a second AID. The first lobe of the first AID and a first lobe of the second AID substantially overlap in angle during the scan of the first lobes, and the second lobe of the first AID and a second lobe of the second AID substantially overlap in angle during the scan of the second lobes.

Abstract: A method comprises: providing light to a plurality of optical antennas separated by a set of spacings in an optical phased array (OPA), wherein a plurality of phase shifters impose phase shifts onto light provided to respective optical antennas of the plurality of optical antennas; and managing the imposed phase shifts using a phase shift control module. The managing comprises a first mode of operation comprising: for a first subset of optical antennas within a distance from a center of the plurality of optical antennas, determining variations of imposed phase shifts smaller than a phase shift variation range, and for a second subset of optical antennas further than the distance from the center of the plurality of optical antennas, determining variations of imposed phase shifts larger than the phase shift variation range.

Abstract: Operating an OPA includes: applying, by each phase shifter element an optical phase shift to an optical wave that propagates through the phase shifter element and propagates to a corresponding emitter element, where the optical phase shift is based on an electrical signal provided to the phase shifter element; providing, by each driver element an electrical signal to at least one of the phase shifter elements based on a digital code value received at an input of the driver element; and computing one or more digital code values that are provided to respective inputs of driver elements in the array of driver elements based on processing OPA control information. The processing includes: computing optical phase shift information based at least in part on the OPA control information, and computing a corresponding digital code value based at least in part on the optical phase shift information.

Abstract: Computer-implemented systems and methods for controlling presentation in a web application among remote users over a data network. A web application has a remote control user-interface (UI) element that allows one to turn on or off remote control presentation. Presentation data is shared in the web application among remote users depending on whether the remote control UI element is turned on or off. A system includes an inter-browser controller coupled to the web application. The web application outputs a page having a remote control UI element. The inter-browser controller controls sharing of presentation data selected by a first user through the web application to other remote users depending on whether the remote control UI element is turned on or off.

Abstract: A catheter containment system configured for securing a proximal portion of a catheter placement system within a sterile field. This relieves the clinician from holding the proximal portion to prevent them for falling outside of the sterile field. Further, the proximal portion can be secured out of the way from the insertion site providing a clear field of view. Embodiments include a body, having a channel configured to releasably engage an extension leg or guidewire, and a securement feature to secure the body to a portion of a drape or similar item of the sterile field. Exemplary securement features can include clips, clasps, pins, magnetic elements, adhesives, twist ties, zip ties, snap fasteners, hook and loop attachments, mechanical grasping devices or adhesive pads. The system can further include anchor tabs that can be adhered to the drape to provide an anchor point.

Abstract: A catheter containment device configured to retain a proximal portion of a catheter placement system, such as a catheter, hub, extension leg, luer lock, or guidewire. The device includes a handle configured to engage a digit of the clinician to couple the device and the proximal portion of a catheter placement system thereto. This allows the clinician to retain the proximal portion within the sterile field without reducing dexterity or obstructing the clinician's view of the insertion site or the catheter placement system. Further the device can allow the clinician to manipulate the proximal portion of the catheter system while mitigating dropping or tangling.

Abstract: A plurality of waveguide structures are formed in at least one silicon layer of a first member. The first member includes: a first surface of a first silicon dioxide layer that is attached to a second member that consists essentially of an optically transmissive material having a thermal conductivity less than about 50 W/(m·K), and a second surface of material that was deposited over at least some of the plurality of waveguide structures. An array of phase shifters is formed in one or more layers of the first member. An array of temperature controlling elements are in proximity to the array of phase shifters.

Abstract: A method, apparatus, and computer program product are provided for plasma piercing a workpiece using a plasma cutting torch. According to one implementation the method includes providing the plasma cutting torch at a first pierce height above a workpiece to initiate a piercing operation at the first pierce height for a first duration, during the piercing operation, lowering the plasma cutting torch to a second pierce height above the workpiece for a second duration, and lowering the plasma cutting torch to a cut height.

Abstract: ‘NCORNSP-028SCKL’ is a vigorous, highly-twining, climbing variety of Ipomoea batatas producing many shoots. It is distinguishable from other ornamental sweetpotato cultivars by its palmate, deeply lobed leaves with 3-5 lobes, an aggressive climbing habit, and heavily branched architecture. The chartreuse leaves, long internodes, and the plant architecture, which promotes good plant production in the greenhouse for wholesale distributors, distinguish ‘NCORNSP-028SCKL’ amongst the current ornamental sweetpotatoes in the marketplace. ‘NCORNSP-028SCKL’ exhibits very good vigor and is very well branched. ‘NCORNSP-028SCKL’ is suitable for use in vertical landscape or container plantings.