Abstract: A low-cost and high-strength Bi-based superconducting wire/tape and a preparation method thereof, the preparation method includes: 1. subjecting a first Bi-based superconducting wire/tape to electrochemical silver reduction to remove a Ag alloy layer to obtain a second Bi-based superconducting wire/tape; and 2. subjecting the second Bi-based superconducting wire/tape to surface enhancement, such that a Cu layer is formed to obtain the low-cost and high-strength Bi-based superconducting wire/tape. An electrochemical silver reduction technology combines with an electrochemical additive method to remove a Ag alloy layer on a surface of a Bi-based superconducting wire/tape and coat a high-strength Cu layer, such that a low-cost and high-strength Bi-based superconducting wire/tape can be prepared, which reduces a preparation cost and improves a strength of a Bi-based superconducting wire/tape to meet the application requirements of large super-strong magnets.

Abstract: Trap circuits for use with superconducting integrated circuits having differential capacitively-coupled resonant clock networks are described. An example superconducting integrated circuit (IC) includes a first superconducting circuit comprising: (1) a first Josephson junction (JJ) coupled via a first capacitor to a first clock line, where the first capacitor is configured to receive a first clock signal having a first phase via the first clock line and couple a first bias current to the first JJ, and (2) a second JJ coupled via a second capacitor to a second clock line, where the second capacitor is configured to receive a second clock signal having a second phase via the second clock line and couple a second bias current to the second JJ. The superconducting IC further includes a first trap circuit for the first superconducting circuit and a second trap circuit for a second superconducting circuit having additional JJs.

Abstract: A superconductor device includes a low-dimensional material with a critical temperature higher than a critical temperature corresponding to a bulk form of the low-dimensional material. The low-dimensional material can include shape and structural modifications of a low-dimensional material. The superconductor device can include various conformational arrangements of the low-dimensional material such as nanoribbons, nanotubes, or helices. The superconductor device can include functional groups, such as hydrogen, attached to the low-dimensional material. The superconductor device can include metallic clusters located in proximity to the low-dimensional material. The superconductor device can include a low-dimensional material which is a monolayer, bilayer or multilayer.

Abstract: After a first heat treatment step, an ambient temperature of a stack is held so that the stack is kept in a temperature range that allows the stack to be crystallized by heating the end of the stack to a second temperature range in the second heat treatment step; and a following expression (1) is satisfied, where Q1 represents an amount of heat required to heat the stack to the first temperature range in the first heat treatment step, Q2 represents an amount of heat that is applied to the stack when heating the end of the stack to the second temperature range in the second heat treatment step, Q3 represents an amount of heat that is released during crystallization of the stack, and Q4 represents an amount of heat required to heat the entire stack to the crystallization start temperature Q1+Q2+Q3>Q4??(1).

Abstract: The disclosure is directed to a process and an apparatus for providing a feedstock. A gaseous feed stream comprising at least one hydrocarbon is passed to a reforming unit followed by a water gas shift reaction zone to provide a first gaseous stream comprising H2, CO, and CO2. The first gaseous stream is fed a hydrogen separation zone to separate it into a hydrogen enriched stream and a second gaseous stream comprising CO, CO2 and H2. The second gaseous stream is fed to a CO2 to CO conversion system to produce a third gaseous stream comprising H2 and CO having a H2:CO molar ratio of less than 5:1. The third gaseous stream is fed as the feedstock for a gas fermentation unit to have increased stability and product selectivity.

Abstract: A cable for carrying electrical current in a coil of a magnet. The cable comprises a stack of tape assemblies. Each tape assembly has a length and a width, such that the length is much larger than the width, and each tape assembly comprises an HTS layer of anisotropic high temperature superconductor. HTS material, wherein a c-axis of the HTS layer is at a non-zero angle to a vector perpendicular to the plane of the HTS layer. The tape assemblies are stacked as a series of pairs, each pair comprising first and second HTS tape assemblies and a copper layer therebetween. The tape assemblies in each pair are arranged such that the c-axis of the HTS layer of the first HTS tape assembly of each pair have reflective symmetry to the c-axis of the HTS layer of the second HTS tape assembly of each pair about a plane which is parallel to and equidistant from each HTS layer.

Abstract: A superconductor tape and method for manufacturing, measuring, monitoring, and controlling same are disclosed. Embodiments are directed to a superconductor tape which includes a superconductor film overlying a buffer layer which overlies a substrate. In one embodiment, the superconductor film is defined as having a c-axis lattice constant higher than 11.74 Angstroms. In another embodiment, the superconductor film comprises BaMO3, where M=Zr, Sn, Ta, Nb, Hf, or Ce, and which has a (101) peak of BaMO3 elongated along an axis that is between 60° to 90° from an axis of the (001) peaks of the superconductor film. These and other embodiments achieve well-aligned nanocolumnar defects and thus a high lift factor, which can result in superior critical current performance of the tape in, for example, high magnetic fields.

Abstract: A device comprises a support net with nodes, wherein each node comprises a HTS photovoltaic-magnetic cell, wherein alignments of the HTS photovoltaic-magnetic cells are arranged with N-S in parallel alignment. A device comprises a tether comprising a plurality of HTS solenoids and a sheath, wherein a solenoid of the plurality of HTS solenoids comprises a high temperature superconducting material and reinforcing fiber. A device comprises propulsion ball or plate with tail, injected in propulsion channel; HTS solenoids disposed along walls of propulsion channel, wherein the propulsion ball or plate with tail are moved through the propulsion channel using magnetic field generated by HTS solenoids; and a collection channel.

Abstract: The present disclosure is drawn to powder bed materials. The powder bed material can include from 20 wt % to 95 wt % of a large particulate metal and from 5 wt % to 80 wt % of a small particulate metal. The large particulate metal can have a D50 particle size distribution value ranging from 20 ?m to 100 ?m and an average aspect ratio from 1:1 to 1.1:1. The small particulate metal can have a D50 particle size distribution value ranging from 1 ?m to 15 ?m and an average aspect ratio from greater than 1.1 to 2.1.

Abstract: A method of producing an amorphous alloy ribbon having a composition of Fe100-a-bBaSibCc (13.0 atom %?a?16.0 atom %, 2.5 atom %?b?5.0 atom %, 0.20 atom %?c?0.35 atom %, and 79.0 atom %?(100-a-b)?83.0 atom %) includes: preparing an alloy ribbon; and, in a state in which the alloy ribbon is tensioned with a tensile stress of from 5 MPa to 100 MPa, increasing a temperature of the alloy ribbon to from 410° C. to 480° C., at an average temperature increase rate of from 50° C./sec to less than 800° C./sec, and decreasing a temperature of the thus heated alloy ribbon to a temperature of a heat transfer medium for temperature-decreasing, at an average temperature decrease rate of from 120° C./sec to less than 600° C./sec, wherein the temperature increase and decrease are performed by contacting the traveling alloy ribbon with a heat transfer medium.

Abstract: A rare-earth magnet and a method of manufacturing the same are provided. The method includes: preparing Sm—Fe—N magnetic powder; preparing reforming material powder containing metallic zinc; mixing the magnetic powder and the reforming material powder to obtain mixed powder; subjecting the mixed powder to compression molding in a magnetic field to obtain a magnetic-field molded body; subjecting the magnetic-field molded body to pressure sintering to obtain a sintered body; and subjecting the sintered body to heat treatment. A content proportion of the metallic zinc in the reforming material powder is 10 to 30% by mass with respect to the mixed powder. When a temperature and time in conditions for the heat treatment are defined as x° C. and y hours, respectively, the formulas y??0.32x+136 and 350?x?410 are met.

Abstract: A method for dry reformation of methane (DRM) includes introducing a H2-containing feed gas stream into a reactor, including a nickel-containing fibrous silica zinc oxide (Ni/FSZ) catalyst, passing the H2-containing feed gas stream through the reactor to contact the H2-containing feed gas stream with particles of the Ni/FSZ catalyst at a temperature of from 500 to 900 degrees Celsius (° C.) to form a reduced catalyst; terminating the introduction of the H2-containing feed gas stream and introducing and passing a mixed feed gas stream including CH4 and CO2 through the reactor to contact the mixed feed gas stream with the reduced catalyst at a temperature of from 500 to 1000° C. thereby converting at least a portion of the CH4 and CO2 to H2 and CO; and regenerating the Ni/FSZ catalyst particles to form a regenerated catalyst and producing a residue gas stream leaving the reactor.

Abstract: This nonlinear microwave filter is provided with quantum bits that are formed on a circuit board in which target quantum bits are formed which are quantum bits controlled in a superconducting quantum circuit, and that are coupled to a control waveguide to which the target quantum bits are coupled, wherein the distance to a waveguide end in the control waveguide is within a predetermined range from semi integer times the resonant wavelength, the quantum bits have a resonant frequency in which the difference from the resonant frequency of the target quantum bits is within a predetermined range, and the coupling to the control waveguide is stronger by a predetermined value than the coupling between the target quantum bits and the control waveguide.

Abstract: A method comprises growing a longitudinal a-b plane high temperature superconducting crystal with a long fiber reinforced seed crystal; and cutting off the long fiber reinforced seed crystal from the longitudinal a-b plane high temperature superconducting crystal. A method comprises adding high temperature superconducting constituent powders; adding intermediate solid state powders to the constituent powders; disposing fiber reinforcement within the intermediate solid state powders and the constituent powders; compressing the intermediate solid state powders and the constituent powders with the fiber reinforcement to form a high temperature superconducting shape; and heating the high temperature superconducting shape to crystalize.

Abstract: A variable-structure stacked cable topology includes: a plurality of sections of stacked cables. The plurality of sections of the stacked cables are connected sequentially. The sections of the stacked cables includes a plurality of base tapes at an equal quantity. The plurality of base tapes are connected mutually. At least one of the plurality of base tapes is a superconducting tape. A cable topological structure is formed by sequentially connecting a plurality of sections of stacked cables. Each of the sections of the stacked cables is provided with superconducting tapes or a combination of superconducting tapes and copper tapes to form a variable-structure cable topological structure. By packaging a different number of superconducting tapes in each area, this section of cable can be twisted into a coil in such a way that a critical current of the whole coil can be approximately uniform along a length direction of the cable.

Abstract: A composition comprises a plurality of continuous ordered fibers embedded in a high temperature superconducting material, wherein the plurality of continuous ordered fibers comprise a core and a reinforcing material. A composition comprises one or more large diameter continuous fibers embedded in a high temperature superconducting material; and one or more small diameter continuous fibers embedded in a high temperature superconducting material. A composition comprising one or more continuous fibers embedded in a high temperature superconducting material, wherein a fiber of the one or more continuous fibers comprise a core and reinforcing material, and wherein one or more magnetic particles are embedded in the core of the fiber.

Abstract: The present invention includes a simple, scalable and solventless method of dispersing graphene into polymers, thereby providing a method of large-scale production of graphene-polymer composites. The composite powder can then be processed using the existing techniques such as extrusion, injection molding, and hot-pressing to produce a composites of useful shapes and sizes while keeping the advantages imparted by graphene. Composites produced require less graphene filler and are more efficient than currently used methods and is not sensitive to the host used, such composites can have broad applications depending on the host's properties.

Abstract: A reservoir computer. In some embodiments, the reservoir computer includes a series array of Josephson junctions, a coupling impedance, and a readout circuit. In some embodiments, the series array of Josephson junctions includes a plurality of Josephson junctions, connected in series; the coupling impedance is connected in parallel with the series array of Josephson junctions; and the readout circuit is connected to at least three nodes of the series array of Josephson junctions.

Abstract: A three-dimensional (“3D”) printer.

Abstract: A method of producing polycrystalline Y3Ba5Cu8Oy (Y-358) whereby powders of yttrium (III) oxide, a barium (II) salt, and copper (II) oxide are pelletized, calcined at 850 to 950° C. for 8 to 16 hours, ball milled under controlled conditions, pelletized again and sintered in an oxygen atmosphere at 900 to 1000° C. for up to 72 hours. The polycrystalline Y3Ba5Cu8Oy thus produced is in the form of elongated crystals having an average length of 2 to 10 ?m and an average width of 1 to 2 ?m, and embedded with spherical nanoparticles of yttrium deficient Y3Ba5Cu8Oy having an average diameter of 5 to 20 nm. The spherical nanoparticles are present as agglomerates having flower-like morphology with an average particles size of 30 to 60 nm. The ball milled polycrystalline Y3Ba5Cu8Oy prepared under controlled conditions shows significant enhancement of superconducting and flux pinning properties.