267 results about "SQUID" patented technology

In an implementation, a tunable traveling wave parametric amplifier (TWPA) includes a T-stage that includes a first DC-SQUID and a first interface inductively communicatively coupled to the first DC SQUID operable to apply a first bias to the first DC SQUID. The T-stage also includes a second DC-SQUID electrically communicatively coupled to the first DC-SQUID in series via a center node, and a second interface inductively communicatively coupled to the second DC-SQUID operable to apply a second bias to the second DC-SQUID. The TWPA also includes a shunting resonator communicatively coupled to the center node via a coupling capacitance. The shunting resonator includes a third DC-SQUID, and a third interface inductively communicatively coupled to the third DC SQUID operable to apply a third bias to the third DC SQUID. The first, second, and third biases are adjustable to improve a bandwidth of the tunable TWPA.

The squid liquid nitrogen instant freezer comprises a freezing chamber, the freezing chamber is provided with a conveying belt assembly, the conveying belt assembly is provided with a plurality of arc-shaped protrusions at equal intervals, and a plurality of material turning rod assemblies are installed on the side face, close to the freezing chamber, of a sliding plate; the driving motor drives the conveying belt assembly to move to convey squids to the position below the nitrogen injection assembly, meanwhile, due to the fact that arc-shaped protrusions arranged on the conveying belt assembly enable the squids and the surface of the conveying belt to be spaced and not to make close contact, and the driving motor can synchronously drive a reciprocating lead screw to rotate in the conveying process; and after squids are conveyed in place, the first gear column is separated from a driving gear, and the squids are not conveyed any more, so that the squids are statically located below the nitrogen injection assembly for air injection quick freezing, the contact time of the squids and nitrogen is prolonged, and the quick freezing effect of the squids is guaranteed.

The invention provides marine-derived lactobacillus rhamnosus S400M01 and application thereof, and relates to the technical field of heavy metal adsorption and removal, the marine-derived lactobacillus rhamnosus S400M01 is preserved in Guangdong Microbial Culture Collection Center (GDMCC) on November 28, 2022, the preservation address is Guangzhou, and the number is GDMCCNO: 63001. The strain can tolerate cadmium chloride concentration up to 1000 mg / L, can tolerate lead concentration up to 800 mg / L, can adsorb and remove heavy metals cadmium and lead in squid viscera, and reduces accumulation of cadmium and lead in viscera of live crucian in a heavy metal polluted water body.

The invention provides an SQUID working parameter regulation and control device and method. The SQUID working parameter regulation and control device comprises an SQUID reading circuit used for detecting a magnetic signal; the reference magnetic sensor is used for collecting working environment magnetic field data and providing a modulation signal for an SQUID device in the SQUID reading circuit; the control module is connected to the output end of the SQUID reading circuit and the output end of the reference magnetic sensor, when parameters are regulated and controlled, a relation curve of the output voltage and the input magnetic flux is constructed based on the influence of modulation signals on the SQUID device, the working point slope of the relation curve of the output voltage and the input magnetic flux is calculated, and the working point slope of the relation curve of the output voltage and the input magnetic flux is calculated. And a control signal of the SQUID reading circuit is generated, so that the slope of the working point reaches the maximum value. According to the invention, the working point can be intelligently adjusted in application, and high-reliability and high-accuracy magnetic detection can be realized in a complex working environment.

The invention relates to the technical field of marine product processing equipment, in particular to squid processing operation equipment which comprises a processing rack, a squid yellow drawing-out device, a squid yellow removing device, a squid fin removing device, a squid head removing device and a conveying mechanism are arranged on the processing rack, and a squid carrier is fixedly arranged on the conveying mechanism in the squid conveying direction. A squid head yellow separating mechanism is arranged in front of the squid yellow drawing-out device, a squid head separating strip is arranged in front of the squid yellow removing device, the squid yellow removing device comprises a squid yellow clamping mechanism and a yellow removing mechanism, and the squid fin removing device comprises a squid supporting mechanism, a squid pressing limiting mechanism and a squid fin removing mechanism. The squid head removing device comprises a squid carcass supporting mechanism and a head removing clamping mechanism. The squid head removing device is ingenious in structure and convenient to operate, squid clamping is stable, squid yellow and internal organs can be completely taken out and removed, and squid heads and squid fins are completely removed.

The invention relates to a Spin Exchange Relaxation-Free (SERF)-based magnetometer system (100) for detecting ultra- weak magnetic fields, particularly suited for bio¬ sensing applications such as MEG, MCG, and MRI. The system operates at room temperature and includes a VCSEL (101) emitting dual beams tuned to Rubidium-87 transitions, a microfabricated vapor cell (102) with LIAD-based heating (103), and an optical assembly (104) for polarization control. A detection unit (105) converts Faraday rotation into electrical signals, enhanced by lock-in amplification. Magnetic shielding (106), thermal management (107), and relaxation mitigation maintain SERF conditions. A calibration subsystem (109) and embedded machine learning module (110) optimize sensitivity in real time. The compact, cryogen-free architecture enables portable and wearable applications. The invention achieves femtotesla-level sensitivity while overcoming limitations of conventional SQUID-based systems, making it suitable for clinical and field deployments.

A device for implementing a non-reciprocal bandpass filter is provided. The device includes a plurality of capacitively-coupled shunt resonators. Each capacitively-coupled shunt resonators includes a plurality of superconducting quantum interference devices (SQUIDs) connected to each other, a flux line inductively coupled to the plurality of SQUIDs, and a capacitor connected in parallel to the plurality of SQUIDs.

A superconducting quantum processor unit for quantum computing is provided. The processor unit is formed from the union of a qubit chip and a wiring chip with superconducting bonding bumps and spacers. The bumps may be densely distributed around active elements between the two chips and effectively form a Faraday-Cage around the qubits, control signal waveguides etc. The qubit chip has strategically spaced qubits and an inductively coupled probe line and the wiring chip has a bus coupling resonator with a number of voltage nodes and anti-nodes, a resonator pump and at least one SQUID. Magnetic flux applied through the SQUIDs changes their impedances and modifies the microwave boundary conditions of the bus. This allows in-situ shifting of electric field distributions of the resonance modes of the bus along the length of the bus. This tunes the coupling rates of the bus to all qubits simultaneously.

One example includes a superconducting analog-to-digital converter (ADC) system. The system includes a control line configured to propagate an interrogation pulse and a superconducting quantum interference device (SQUID) comprising a first Josephson junction and a second Josephson junction. The SQUID can be configured to receive an input current. The first Josephson junction can be configured to trigger to provide a first pulse in response to the interrogation pulse and a first polarity of the input current and the second Josephson junction can be configured to trigger to generate a second pulse in response to the interrogation pulse and a second polarity of the input current. The system further includes an output stage configured to propagate the first pulse to an output to indicate the first polarity of the input current.

The invention discloses a sepiella maindroni stepped wild domestication device which comprises a plurality of net cages arranged from inside to outside, each net cage is provided with a plurality of meshes, and the meshes in different net cages are gradually increased from inside to outside in a stepped manner; a plurality of suspension type fish reefs are arranged in the net cage, each suspension type fish reef comprises a plurality of single bodies horizontally installed on the floating rope, and each single body is a shell with a plurality of small holes formed in the shell wall. An area which is flat in terrain, relatively gentle in water flow, rich in plankton and about 10 m in water depth is selected near a sea area to be released as a domestication field, the device is put into the domestication field, and in-situ wild domestication is carried out on sepiella maindroni larvae; and the predation capability, the capability of avoiding enemies and the capability of coping with environmental stress after entering a natural sea area are improved, so that the enhancement and release effects are improved.

A tunable coupler system includes an input line configured to receive an input current and a signal line configured to provide a signal line current. The tunable coupler system further includes a first superconducting quantum interference device (SQUID) inductively coupled to the input line and the signal line, and a second SQUID inductively coupled to the input line and the signal line. In addition, the tunable coupler system includes a control line inductively coupled to the first SQUID and the second SQUID. The first SQUID and the second SQUID are configured to couple the input current in the input line to the signal line to form the signal line current. A coupling strength between the input line and the signal line is determined based on a control current in the control line.

The invention relates to a magnetic resonance imaging (MRI) device (1) which is designed to image a substantially metallic component. The magnetic resonance imaging device comprises means (b '') for generating a polarized magnetic field intended to be applied to said component (a), radio frequency (RF) means (g) for exciting said component (a), detection means cooperating with antenna means for delivering a magnetic resonance imaging (MRI) signal, and means for processing said MRI signal for delivery with respect to said component (a) and a device for detecting feature information of the state. The component (a) is subjected to a very weak field of less than 10 mT, and the detection means comprise a pickup coil (h) magnetically coupled with the polarization means (b '') and the radio frequency means (g) and operating as a flux concentrator, and an SQUID (Superconducting Quantum Interference Device) detector arranged downstream of said pickup coil (h) via a transformer.

According to the structure for reducing the area of the SQUID superconducting loop and the preparation method thereof provided by the invention, the laminated structure is formed on the silicon substrate, and then the laminated structure is accurately etched, so that the 3D nano bridge junction is formed on the slope surface of the laminated structure and stretches across the insulating layer, and therefore, batch preparation of the structure for reducing the area of the SQUID superconducting loop can be realized; according to the SQUID probe, large-scale application of the SQUID probe is more facilitated, the plane of the 3D nanometer bridge junction is perpendicular to the plane where the SQUID superconducting loop is located, so that the width of the 3D nanometer bridge junction does not influence the effective loop area of the SQUID any more, the performance of the SQUID can be improved by independently regulating and controlling the thickness of the 3D nanometer bridge junction, the inhibition effect of a magnetic field on the superconducting characteristic of the 3D nanometer bridge junction is greatly weakened, and in addition, the SQUID probe can be applied to a large scale. The SQUID superconducting loop with the minimum line width of 10nm can be prepared by combining the electron beam lithography technology with higher precision, the area of the SQUID superconducting loop can be greatly reduced, and the spin sensitivity is improved, so that higher spatial resolution can be realized during scanning magnetic imaging.

A diagnostic device includes a probe, a motor configured to scan the probe over a test circuit, a superconducting quantum interference device (SQUID) attached to the probe and configured to be coupled to the test circuit such that an electronic noise present in the test circuit induces a first current that flows through the SQUID, and a current path configured to receive a second current that flows through the SQUID. The SQUID is configured to generate an output in a form of a first voltage in response to a sum of the first current and the second current being less than a threshold current, and a second voltage in response to the sum of the first current and the second current being greater than the threshold current.

A diagnostic apparatus includes a first array of superconducting quantum interference devices (SQUIDs). Each SQUID of the first array is configured to be coupled respectively to a test circuit of a second array of test circuits such that an electronic noise present in the test circuit induces a first current that flows through the SQUID. The diagnostic apparatus also includes a current source configured to provide a second current for each SQUID of the first array such that the second current flows through the SQUID. Each SQUID of the first array is configured to generate an output in a form of: a first voltage in response to a sum of the first current and the second current being less than a threshold current, and a second voltage in response to the sum of the first current and the second current being greater than the threshold current.

The invention discloses bacillus velezensis LYG42 and application thereof, and belongs to the technical field of biology. On one hand, the invention provides the bacillus velezensis LYG42, and on the other hand, the invention provides application of the bacillus velezensis LYG42 in inhibition of colletotrichum gloeosporioides. The bacillus velezensis LYG42 obtained by separation can be fermented by utilizing squid processing leftovers, and the fermentation liquor obtained by fermentation can obviously inhibit colletotrichum gloeosporioides, so that a strain resource is provided for biological control of anthracnose, and a theoretical basis is provided for development of green biopesticide.

The invention provides a cold resistance comprehensive evaluation method for porphyra yezoensis, and belongs to the technical field of biological breeding. Four phenotypic indexes related to the cold resistance character are obtained through screening experiments, the four phenotypic indexes are the leaf area of the porphyra yezoensis thallus, the maximum light quantum efficiency Fv / Fm, the photosynthetic pigment chlorophyll a and allophycocyanin respectively, and the four phenotypic indexes can not only meet sustainable determination in a lossless state, but also can be used for detecting the cold resistance character of the porphyra yezoensis. And the cold resistance evaluation model constructed based on the few phenotypic indexes can achieve the purpose of accurately, efficiently and comprehensively evaluating the cold resistance of the porphyra yezoensis. Experimental results show that the method provided by the invention is relatively consistent with the cold resistance of an actual porphyra yezoensis variety or strain, the cold resistance grade of a to-be-detected sample can be accurately identified, the blank of cold resistance evaluation of the porphyra yezoensis is filled, and a technical basis is provided for subsequent screening, identification and breeding of a cold-resistant porphyra yezoensis culture variety.

A diagnostic circuit includes a superconducting quantum interference device (SQUID) configured to be coupled to a test circuit such that an electronic noise present in the test circuit induces a first current that flows through the SQUID. The diagnostic circuit also includes a current path configured to receive a second current that flows through the SQUID. The SQUID is configured to generate an output in a form of: a first voltage in response to a sum of the first current and the second current being less than a threshold current and a second voltage in response to the sum of the first current and the second current being greater than the threshold current.

The invention discloses an attachment device for cuttlefish oviposition, and aims to provide the attachment device for cuttlefish oviposition, which not only can adapt to the habit that cuttlefish likes to oviposition on attachments close to the seabed, but also can effectively avoid the problem that cuttlefish eggs fall off and lose due to the fact that the cuttlefish eggs are impacted by seawater during egg collection. The attachment frame comprises a base and a top plate, and a plurality of egg attachment ropes are arranged between the base and the top plate; the protective plates are hinged to the edge of the top plate, and clamping rods are arranged on the protective plates; the clamping piece is arranged on the top plate and is provided with a clamping opening with an upward opening; the sliding assembly comprises a lifting piece arranged on the top plate in a lifting and sliding mode, a one-way pushing piece rotationally arranged on the lifting piece and a limiting piece; one end of the connecting rope is connected with the lifting piece, and the other end is provided with a buoyancy piece; the attachment frame is lowered to the seabed through the connecting rope, in the process, the protection plate rotates upwards under the action of water flow, and the clamping rods are clamped into the corresponding clamping openings.

According to the superconducting quantum interference device based on the Josephson junction and the preparation method of the superconducting quantum interference device based on the Josephson junction, the manufacturing process of the Josephson junction is improved, and an organic cleaning process is added in the photoresist stripping process, so that the side wall formed by continuous stacking can be removed, the quality of a subsequently deposited film is improved, and the performance of the superconducting quantum interference device is improved. The SQUID output curve is not easy to generate resonance, and the yield of the SQUID batch preparation process is improved; on the basis of a traditional SQUID, each Josephson junction is additionally connected in series or in parallel with one Josephson junction to form the SQUID with four Josephson junctions, so that a larger output voltage modulation depth is obtained, the SQUID has higher sensitivity, lower noise and a larger linear range, a circuit is not prone to losing lock, and the SQUID has the advantages of being simple in structure, low in cost and high in reliability. A lengthy offset line does not need to be added, the problems of magnetic flux crosstalk, poor magnetic flux coherence and the like do not need to be worried about, and the layout structure design is simpler and more convenient.

The invention provides a primer probe composition, a kit and application of the primer probe composition to identification of rhinogobio ventralis species or detection of rhinogobio ventralis population abundance. The primer probe composition disclosed by the invention is simple to use, accurate in result and high in repeatability; the method has high accuracy and can avoid errors caused by gene diversity in a population; the kit has high sensitivity, and the detected minimum DNA concentration can reach 1 * 10 < 3 > copies / mu L; the method also has good interspecific specificity, can effectively distinguish rhinogobio ventralis and other fishes, and even can distinguish rhinogobio ventralis and related species, such as rhinogobio ventralis and rhinogobio cylindrica. Under the background of continuous decline of rhinogobio ventralis population resources, accurate monitoring of rare species can be realized, and data support is provided for resource management protection of rhinogobio ventralis.

A superconducting quantum circuit includes first to fourth qubits, and a coupler including first and second electrodes and a nonlinear element bridging the first and second electrodes, wherein each of the first to fourth qubits includes a resonator including a SQUID loop circuit and a capacitor connected in parallel to the loop circuit, the first and second qubits and the third and fourth qubits capacitively coupled to the first and second electrodes of the coupler, respectively, wherein a magnitude relationship among a capacitance value C of a capacitive coupling between each of the first to fourth qubits and the coupler, a capacitance value CJ of the capacitor connected in parallel to the loop circuit for each of the first to fourth qubits, and a capacitance value Cg between the first and second electrodes of the coupler, is set to CJ>Cg>C.

A diagnostic circuit includes a superconducting quantum interference device (SQUID) configured to be coupled to a test circuit such that an electronic noise present in the test circuit induces a first current that flows through the SQUID. The diagnostic circuit also includes a current path configured to receive a second current that flows through the SQUID. The SQUID is configured to generate an output in a form of: a first voltage in response to a sum of the first current and the second current being less than a threshold current and a second voltage in response to the sum of the first current and the second current being greater than the threshold current.

The present invention proposes a mixed culture method of Porphyra yezoensis and Ulva feldspar. The present invention comprises: 1) Porphyra yezoensis is planted in late September, and conchospore seedlings of Porphyra yezoensis are collected on a culture net, and the net is hung in the sea; 2) Porphyra yezoensis culture management is performed by drying and washing the net according to the epiphytic conditions of miscellaneous algae; 3) Porphyra yezoensis is harvested and cultured for 50-60 days, and Porphyra yezoensis is harvested; 4) Ulva feldspar seedlings and planting are collected, Ulva feldspar seed vegetables are washed, ripened, released, filtered, and sprinkled with Ulva feldspar spore water, and the Ulva feldspar seed vegetables are put into a net bag and hung on the culture net for culture; 5) Ulva feldspar culture management continues to harvest Porphyra yezoensis, and all Porphyra yezoensis on the net are harvested; 6) Ulva feldspar is harvested and cultured for 70-80 days, and Ulva feldspar is harvested. The invention has simple operation and fewer steps, improves the breeding efficiency, realizes the mixed breeding of Porphyra yezoensis and Ulva longissima, makes full use of the breeding sea area and equipment, reduces the cost, and achieves the effect of increasing production and income.

The invention discloses a special compound feed for mottled bamboo shark parents and a preparation method of the special compound feed. The special compound feed comprises imported fish meal, domestic chicken meal, squid paste and the like. The preparation method comprises the following steps: crushing and mixing the raw materials, adding water, carrying out steam tempering and curing, granulating, and naturally cooling to obtain the special compound feed for the matta striata shark parents. The prepared special compound feed for the mottled bamboo shark parents is excellent in food calling performance, the problem that artificially domesticated sharks are anorexia and refusal to eat artificial compound feed can be successfully solved, chilled baits are effectively replaced, the breeding cost is reduced, and the pathogen invasion risk caused by unstable quality of the chilled baits is fundamentally avoided. The special compound feed for the parents can also optimize the water environment and realize ecological and healthy breeding of the sharks, the high stability of the special compound feed remarkably reduces the organic matter load of the water caused by bait dissolution loss, the concentration of ammonia nitrogen and nitrite in the water is controlled from the source, the water change frequency and the use of drugs are reduced, and a stable and clean breeding environment is provided for the parents.

The technology described herein is directed towards a cryogenic magnet-less circulator device, in which the circulator device is based on the spatiotemporal modulation of angular momentum for microwave photons, controlled using a modulated control signal. The circulator device is configured for integration with a quantum computer, e.g., to facilitate qubit measurements. The circulator topology and design are based on tank circuits, e.g., arranged in a star topology with different sets of radio frequency superconducting quantum interference devices (rf-SQUIDS) per tank circuit, that resonate out-of-phase based on the modulated control signal. A single control line can be used to operate the circulator. The circulator can be fabricated using standard semiconductor processes, allowing one or more circulators to be integrated on the same superconducting chip as the qubits. A classical computer can be used to output the modulated control signal, and adapt the modulated control signal as needed under varying conditions.

The invention provides a high-temperature superconducting weak magnetic detection device and system, and the device comprises a Dewar which is internally provided with a refrigerant; the reading circuit module comprises a reading circuit board and a shielding shell; an annular cavity is formed in the shielding shell, and the reading circuit board is arranged in the shielding shell; the embedded structure is inserted into the Dewar, an installation position of an SQUID chip is arranged on the embedded structure, and a lead channel is arranged on the side wall of the embedded structure; and the heat insulation structure is fixed and filled in the upper end opening of the embedded structure. According to the high-temperature superconducting weak magnetic detection device and system, connectors and fasteners do not need to be disassembled and assembled frequently in the refrigerant filling process, and operation is convenient; electrostatic point discharge is not easy to generate, and the electrostatic damage rate of the high-temperature SQUID is reduced; the high-temperature SQUID does not need to be exposed in the air in the refrigerant filling process, performance degradation of the SQUID is avoided, and the service life and the performance stability of the SQUID are further ensured; the fault rate of the system is reduced in practical application, and the reliability and stability of the system are improved.

One example includes a superconducting analog-to-digital converter (ADC) system. The system includes a control line configured to propagate an interrogation pulse and a superconducting quantum interference device (SQUID) comprising a first Josephson junction and a second Josephson junction. The SQUID can be configured to receive an input current. The first Josephson junction can be configured to trigger to provide a first pulse in response to the interrogation pulse and a first polarity of the input current and the second Josephson junction can be configured to trigger to generate a second pulse in response to the interrogation pulse and a second polarity of the input current. The system further includes an output stage configured to propagate the first pulse to an output to indicate the first polarity of the input current.

This invention relates to the field of squid slice moisture control technology, and more particularly to a standard squid slice moisture control processing device, comprising a main plate, a first groove at the upper end of the main plate, a uniform kneading mechanism for uniformly kneading the squid slices at the upper end of the main plate, the uniform kneading mechanism comprising two seventh electric telescopic rods symmetrically arranged at the lower end of the main plate, the telescopic ends of the two seventh electric telescopic rods being respectively fixedly connected to limit blocks, the upper ends of the two limit blocks being respectively provided with second grooves, and a vacuum spraying mechanism for vacuuming and spraying conditioning agents inside the main plate at the upper end of the main plate; a first fixed body and the telescopic ends of the fifth electric telescopic rods are connected by a pressure sensor, the thickness of the squid slices can be detected by the telescopic amount of several fifth electric telescopic rods, and then the fifth electric telescopic rods are controlled by the pressure sensor to achieve kneading with corresponding force according to the thickness of the squid slices.