Abstract: A method of fabricating a multi-mode heat transfer device includes forming a thermal metamaterial composite structure that includes an inner core to radiate heat and an outer core that at least partially surrounds the inner core. The outer core includes a high thermally conductive material inlay and a low thermally conductive material matrix that form a composite material pattern to thermally concentrate and direct heat radiated by the inner core to an area outside of the multi-mode heat transfer device, while also thermally cloaking heat radiated by the inner core. A plurality of thermal metamaterial composite structures are then stacked in a stacked formation to form a thermal metamaterial composite assembly. The method includes manipulating the emissivity of the thermal metamaterial composite assembly by selectively applying a coating or a plating to one or more outer surface regions of the outer core to enhance the transfer of heat by the composite material pattern.

Abstract: Grooves are formed at equal intervals in the circumferential direction on an outer peripheral edge of a circular block, and inner rods are housed in these grooves and arranged to be movable radially along radial directions. The outer rods are provided to be movable radially along radial directions, and respectively face the inner rods. Respective one slot insertion portions of coil segments are inserted into gaps between the inner rods and also into the holding member. The respective other slot insertion portions are inserted into gaps between the outer rods. Thereafter, the whole outer rods are rotated to rotate the coil segments around the slot insertion portions, then the holding member is lowered, and the whole outer rods are further rotated without interference between the holding member and the slot insertion portions to bring the coil segments into close contact with one another.

Abstract: The present disclosure relates to methods for compositional analysis of algal biomass, specifically weight percent elemental composition. In at least one embodiment, a method for compositional analysis of an algae sample includes flash combusting a first portion of the algae sample to provide a carbon wt %, a hydrogen wt %, and a nitrogen weight %. The method includes pyrolysing a second portion of the algae sample to provide an oxygen wt %. The method includes scanning a third portion of the algae sample using x-ray fluorescence to provide an elemental intensity. The method includes normalizing the elemental intensity using the carbon wt %, the hydrogen wt %, the nitrogen wt %, and/or the oxygen wt %.

Abstract: Dynamically adjustable EDA measurement device may include: a dynamically formable base comprising a soft robotics material, wherein the dynamically formable base comprises a formable surface configured to be dynamically formed in response to input signals; and an EDA sensing layer affixed to the formable surface of the dynamically formable base, the EDA sensing layer comprising a plurality of electrodes arranged on a flexible substrate and configured to be connected to a power supply; wherein, in response to input signals, the formable surface of the dynamically formable base and the EDA sensing layer affixed thereto are reformed into a desired contour.

Abstract: A workpiece conveying system for a transfer press machine includes: a beam provided to extend in a feed direction of a workpiece; and a plurality of workpiece conveying apparatus supported by the beam. The workpiece conveying apparatus each include: a feed device including a first carrier that is movable relative to the beam in the feed direction; a raising and lowering device including a second carrier that is movable relative to the first carrier in a raising and lowering direction; a clamp device including a third carrier that is movable relative to the second carrier in a clamp direction of the workpiece; and a workpiece holding tool, which is supported at a distal end of the third carrier, and is configured to hold and release the workpiece.

Abstract: A fuel or fuel blending agent for an internal combustion engine includes a ketone compound that is a C4 to C10 branched acyclic ketone, cyclopentanone, or a derivative of cyclopentanone. The ketone compound may be blended with a majority portion of a fuel selected from the group consisting of: gasoline, diesel, alcohol fuel, biofuel, renewable fuel, Fischer-Tropsch fuel, or combinations thereof. The ketone compound may be derived from biological sources. A method for powering an internal combustion engine with a fuel comprising the ketone compound is also provided.

Abstract: A method of predicting hydrocarbon production from one or more artificial lift wells is disclosed. Measurements and/or well test data are obtained from one or more artificial lift wells representing well performance at more than one time period. A statistical model, representing well performance, is generated. Using the statistical model and the measurements and/or well test data, real-time production of the one or more artificial lift wells is predicted and a measure of confidence is generated. Potential optimization opportunities are identified for well performance based on the predicted real-time production of the one or more artificial lift wells. The optimization opportunities are outputted. Hydrocarbon production activities are modified using the optimization opportunities.

Abstract: A water supply control system is disclosed that comprises a computer-implemented control system coupled to a plurality of gates, one or more pumps, and a plurality of sensors. The computer-implemented control system is configured to receive a request to transfer excess water from a non-water supply lake to a water supply lake and determine, based at least in part on data from the plurality of sensors and geographic locations of the non-water supply lake and the water supply lake, whether transferring water as requested will cause or worsen a flood event. In response to a determination that transferring water as requested will not cause or worsen a flood event, the computer-implemented control system is further configured to issue a command to cause a gate associated with a dam at the non-water supply lake to open such that water is transferred from the non-water supply lake to the water supply lake.

Abstract: A PIN photodetector includes an n-type semiconductor layer, an n-type semiconductor cap layer, a first plurality of p-type regions located within the n-type semiconductor cap layer and separated from one another by a distance d1, and an absorber layer located between the n-type semiconductor layer and the n-type semiconductor cap layer including the first plurality of p-type regions. The plurality of p-type regions are electrically connected to one another to provide an electrical response to light incident to the PIN photodetector.

Abstract: A radiation spectrometer includes a scintillator, a photomultiplier, and one or more light-emitting diodes (LEDs). The scintillator receives radiation from the environment and emits light that is indicative of an energy of the radiation. The photomultiplier receives the light and outputs an electrical signal that is in turn indicative of the energy of the radiation. Spectral data can be generated based upon the electrical signal, wherein the spectral data indicates a number of radiation events in each of several energy bins. The one or more LEDs can emit LED light through the scintillator and toward the photomultiplier, wherein the LED light causes an LED peak in the spectral data that can be used to identify an absolute energy of radiation events in the spectral data.

Abstract: An internal combustion engine may include a first piston reciprocatingly disposed in a first cylinder, and a second piston reciprocatingly disposed in a second cylinder. A crankshaft may be coupled with the first piston and the second piston for rotational motion associated with reciprocating movement of at least one of the first piston and the second piston. A combustion chamber may be fluidly coupled with the first cylinder and the second cylinder. An ignition source may be at least partially disposed within the combustion chamber. An intake valve may provide selective fluid communication between an intake system and the combustion chamber, and an exhaust valve may provide selective fluid communication between an exhaust system and the combustion chamber.

Abstract: Methods are provided for formulation of catalysts with improved catalyst exposure lifetimes under oxygenate conversion conditions. In various additional aspects, methods are described for performing oxygenate conversion reactions using such catalysts with improved catalyst exposure lifetimes. The catalyst formulation methods can include formulation of oxygenate conversion catalysts with binders that are selected from binders having a surface area of roughly 250 m2/g or less, or 200 m2/g or less. In various aspects, during formulation, a weak base can be added to the zeotype crystals, to the binder material, or to the mixture of the zeotype and the binder. It has been unexpectedly discovered that addition of a weak base, so that the weak base is present in at least one component of the binder mixture prior to formulation, can result in longer catalyst exposure lifetimes under methanol conversion conditions.

Abstract: A hybrid photonic integrated circuit and a method of its manufacture are provided. A SiP functional layer is fabricated on an SOI wafer. A lithium niobate thin film is bonded to the SiP functional layer. The silicon handle layer is removed from the SOI wafer to expose buried oxide, and at least one III-V die is bonded to the exposed buried oxide. In embodiments, at least one waveguiding component is fabricated in the SiP functional layer. In embodiments, the SiP functional layer comprises a top waveguiding layer.

Abstract: An optoelectronic structure includes a substrate, an electronic die and a photonic die. The electronic die is disposed on the substrate and includes a first surface, wherein the first surface is configured to support an optical component. The photonic die is disposed on the first surface of the electronic die and has an active surface toward the first surface of the electronic die and a side surface facing the optical component.

Abstract: A method for modeling fluid flow in a wellbore is provided. Hydraulic fracturing is an effective technique to improve well productivity by forming high permeable pathways for hydrocarbons to flow from the rock formation to the wellbore. Fluid flow for hydraulic fracturing is modeled using separated flow components, including a wellbore component (modeling the wellbore(s)), a perforation component (modeling the perforations(s)), a fracture component (modeling the fracture(s)) and a rock component (modeling the rock). Each respective component may be selected independently from a plurality of available components. Further, the respective components may be coupled to one another only at their interfaces, such as at a wellbore-perforation interface, a perforation-fracture interface, and a fracture-rock interface, for continuity of fluid kinematics and properties (such as pressure and density).

Abstract: A catalyst for the pyrolysis of a hydrocarbon, such as methane or natural gas, includes a pile of waste-product configured to facilitate the decomposition of the hydrocarbon into hydrogen and carbon. The waste-product is one of bauxite residue, mill scale, or slag. The pile of waste product may be broken down into a powder or piece-meal form.

Abstract: A software-defined network (SDN) rule modification counter system provides counters that track all changes and edits to rules at SDN controllers and SDN switches on an SDN. The system compares counters at the SDN controller and SDN switch to determine if they match. If the counters do not match, a change has been made to the rules. With the addition of rule edit statistics the SDN controller will now have visibility that a rule modification was performed. The SDN controller then verifies that the state of the device is the same as its expected state as a secondary integrity check. Based on the rule modification notification, changes to a central rules table at the SDN controller and changes to rule settings at the SDN switch are made according to pre-programmed logic.

Abstract: A system for isolating a fault in a direct current (DC) grid using thermionic arc extinction. The system includes a DC grid that includes a transmission line. The DC grid also includes a plurality of current interrupters disposed on the transmission line. Each of the plurality of current interrupters on the transmission line are electrically coupled to one another in series. At least one of the current interrupters includes a fixed terminal end and a moveable terminal end. Further, at least one of the current interrupters has an arc shield housing at least two arcing contacts. At least one of the arcing contacts comprises a first conducting material that has a first vaporizing point.