Abstract: The embodiment of the present disclosure provides an imaging method for a dispersion energy spectrum of surface waves, an electronic device, and a storage medium. The imaging method includes: obtaining first surface wave data, and the first surface wave data corresponding to a space-time domain representation; processing the first surface wave data to obtain the second surface wave data, and the second surface wave data corresponding to a space-frequency domain representation; and processing the second surface wave data based on a preset algorithm to obtain a first imaging result, the first imaging result corresponding to a slowness-frequency domain representation.

Abstract: Disclosed is a pet cage, including a cage body having a cage opening and a door body for covering the cage opening. The cage body is provided with a rotating shaft at one end of the cage opening and a hanging bar at the other end of the cage opening, the hanging bar and the rotating shaft are oppositely disposed. The door body is provided with a rotation portion on one side and a hook portion on the other side, the rotation portion includes a rotation groove, the hook portion includes a hook groove opposite to the rotation groove. The rotating shaft is configured to be sheathed inside the rotation groove so that the rotation portion is rotatably connected to the rotating shaft, and the hook portion is hooked to the hanging bar. The depth of the rotation groove is greater than the depth of the hook groove.

Abstract: Provided are a Cyclic Redundancy Check (CRC) circuit, and a method and an apparatus thereof, a chip and an electronic device, which belong to the technical field of computers. Herein, the cyclic redundancy check circuit may include: a configuration module configured to acquire configuration information and an information field, a CRC arbitration module configured to determine a generator polynomial according to the configuration information, a CRC control module configured to respond to triggering of the CRC arbitration module and output a clock signal, a coefficient corresponding to each power in the generator polynomial and the information field, a parallel iteration module configured to respond to the clock signal and implement parallel iteration for the information field according to the coefficient corresponding to the each power in the generator polynomial, as to output an iteration result, and a CRC output module configured to package the information field according to the iteration result.

Abstract: Provided in the present application are a blockchain and DNSSEC-based user authentication method, a system, a device, and a medium, the method comprising: when an encrypted connection over Internet need to be performed between a server and a client, authenticating, by the server, the identity of the client by means of a blockchain-based authentication mechanism, and authenticating, by the client, the identity of the server by means of a DNSSEC-based mechanism. According to the blockchain and DNSSEC-based user authentication method provided in the present application, mutual authentication for an encrypted connection process over Internet is achieved by means of blockchain and DNSSEC-based validation mechanisms without relying on CA authentication. Thus, there are no problems of CA single point of failure or multi-CA mutual trust risk. In addition, the blockchain and DNSSEC-based user authentication method according to the present application is relatively convenient to be implemented.

Abstract: An endotracheal tube (ETT) system and methods are provided. In at least one example, an ETT system may comprise, a tube, inflatable cuff coupled to the tube, and a restrictor. In at least one example the restrictor may comprise one more cavities. In a further example, a restrictor drainage assembly may be coupled to the restrictor, the restrictor drainage assembly configured to drain secretions that may be collected at a collection point formed by the restrictor when the ETT system is positioned in an airway of a patient and in an inflated state.

Abstract: Provided are a Cyclic Redundancy Check (CRC) circuit, and a method and an apparatus thereof, a chip and an electronic device, which belong to the technical field of computers. Herein, the cyclic redundancy check circuit may include: a configuration module configured to acquire configuration information and an information field, a CRC arbitration module configured to determine a generator polynomial according to the configuration information, a CRC control module configured to respond to triggering of the CRC arbitration module and output a clock signal, a coefficient corresponding to each power in the generator polynomial and the information field, a parallel iteration module configured to respond to the clock signal and implement parallel iteration for the information field according to the coefficient corresponding to the each power in the generator polynomial, as to output an iteration result, and a CRC output module configured to package the information field according to the iteration result.

Abstract: A pet cage including a cage body, wherein a door frame is fixed to the cage body, and the door frame is provided with a feed port therein. The pet cage further comprises a door plate, the door plate is connected to the door frame through a slidable turnover device, which enables the door plate to be turned over and opened after sliding a certain distance relative to the door frame. The feed port is latched with a feeding device. It is more convenient in opening the door plate by using the slidable turnover device; moreover, the feeding device is latched in the feed port by way of clamping, so that the feeding device is installed securely, and it is more convenient in access of the feeding device.

Abstract: An endotracheal tube (ETT) system and methods are provided. In at least one example, an ETT system may comprise, a tube, inflatable cuff coupled to the tube, and a restrictor. In at least one example the restrictor may comprise one more cavities. In a further example, a restrictor drainage assembly may be coupled to the restrictor, the restrictor drainage assembly configured to drain secretions that may be collected at a collection point formed by the restrictor when the ETT system is positioned in an airway of a patient and in an inflated state.

Abstract: The disclosed method and system implement domain name registration and resolution based on a domain name group. The system comprises a registration client terminal, a registration server, and a resolution server. The registration server processes single domain name registration information and generates a unique identification for domain name group information, stores the domain name group information and stores registrant information and resolution information associated with the domain names, and feeds back a processing result to the registration client terminal. The resolution server acquires the domain names in the domain name group and resolution data shared by the domain names, and writes the domain names and the resolution data into resolution files according to top-level domain suffixes.

Abstract: A testing method of nucleic acid binding protein based on biochip, comprises the following steps: 1. puts a plurality of groups solution including nucleic acid captured probes into biological sample including a plurality of nucleic acid binding protein to be test, and thus forming nucleic acid captured probe-nucleic acid binding protein complexes; such nucleic acid captured probe includes at least a segment of binding sequence which can bind with aimed nucleic acid binding protein; 2. separates such nucleic acid captured probe-nucleic acid binding protein complexes, then recoveries nucleic acid captured probes; 3. hybridizes the nucleic acid captured probes according to step 2 with a plurality of single strand blotting probes on biochip substrate; the sequence of such blotting probe compensates with such nucleic acid captured probe or one of its strand; 4. detects the result of hybridization.

Abstract: The present invention relates to the isolation of polypeptides derived from the Clostridium botulinum neurotoxin and the use thereof as immunogens for the production of vaccines and antitoxins, as well as research and drug development applications. Clostridium botulinum is responsible for food bone botulism, a severe and often deadly disease. Botulinum neurotoxin binds to neural cells and are translocated into the cytosol. The toxin then prevents neurotransmitter release by cleaving a SNARE protein. A double mutant E224A/E262 full length botulinum neurotoxin Type A holo form was successfully cloned and purified, which lacks the endopeptidase activity involved in the toxic action of the BoNT, and thus leading to its detoxification (DR BoNT/A). This new molecule can be used as an antidote against botulism, and also as a vaccine candidate for botulism. Due to the poor availability and extreme toxicity of native holo-toxin, a nontoxic form of the holo-toxin is highly desired for research and vaccine development.

Abstract: This invention relates generally to the field of moiety or molecule analysis, isolation, detection and manipulation and library synthesis. In particular, the invention provides a microdevice, which microdevice comprises: a) a substrate; and b) a photorecognizable coding pattern on said substrate. Preferably, the microdevice does not comprise an anodized metal surface layer. Methods and kits for isolating, detecting and manipulating moieties, and synthesizing libraries using the microdevices are also provided. The invention further provides two-dimensional optical encoders and uses thereof. In certain embodiments, the invention provides a microdevice, which microdevice comprises: a) a magnetizable substance; and b) a photorecognizable coding pattern, wherein said microdevice has a preferential axis of magnetization. Systems and methods for isolating, detecting and manipulating moieties and synthesizing libraries using the microdevices are also provided.

Abstract: The present invention recognizes that the determination of ion transport function or property using direct detection methods, such as patch-clamps, whole cell recording or single channel recording, are preferable to methods that utilize indirect detection methods, such as FRET based detection system. The present invention provides biochips and methods of use that allow for the direct analysis of ion transport function or property using microfabricated structures that can allow for automated detection of ion transport function or property. These biochips and methods of use thereof are particularly appropriate for automating the detection of ion transport function or property, particularly for screening purposes.

Abstract: This invention relates generally to the field of moiety or molecule analysis, isolation, detection and manipulation and library synthesis. In particular, the invention provides a microdevice, which microdevice comprises: a) a substrate; and b) a photorecognizable coding pattern on said substrate. Preferably, the microdevice does not comprise an anodized metal surface layer. Methods and kits for isolating, detecting and manipulating moieties, and synthesizing libraries using the microdevices are also provided. The invention further provides two-dimensional optical encoders and uses thereof. In certain embodiments, the invention provides a microdevice, which microdevice comprises: a) a magnetizable substance; and b) a photorecognizable coding pattern, wherein said microdevice has a preferential axis of magnetization. Systems and methods for isolating, detecting and manipulating moieties and synthesizing libraries using the microdevices are also provided.

Abstract: This invention relates generally to the field of moiety or molecule analysis, isolation, detection and manipulation and library synthesis. In particular, the invention provides a microdevice, which microdevice comprises: a) a substrate; and b) a photorecognizable coding pattern on the substrate. Preferably, the microdevice does not comprise an anodized metal surface layer. Methods and kits for isolating, detecting and manipulating moieties, and synthesizing libraries using the microdevices are also provided. The invention further provides two-dimensional optical encoders and uses thereof.

Abstract: This invention relates generally to the field of moiety or molecule analysis, isolation, detection and manipulation and library synthesis. In particular, the invention provides a microdevice, which microdevice comprises: a) a substrate; and b) a photorecognizable coding pattern on the substrate. Preferably, the microdevice does not comprise an anodized metal surface layer. Methods and kits for isolating, detecting and manipulating moieties, and synthesizing libraries using the microdevices are also provided. The invention further provides two-dimensional optical encoders and uses thereof.

Abstract: This invention relates generally to the field of moiety or molecule isolation, detection and manipulation and library synthesis. In particular, the invention provides a microdevice, which microdevice comprises: a) a magnetizable substance; and b) a photorecognizable coding pattern, wherein said microdevice has a preferential axis of magnetization. Systems and methods for isolating, detecting and manipulating moieties and synthesizing libraries using the microdevices are also provided.

Abstract: The present invention relates to the isolation of polypeptides derived from the Clostridium botulinum neurotoxin and the use thereof as immunogens for the production of vaccines and antitoxins, as well as research and drug development applications. Clostridium botulinum is responsible for food bone botulism, a severe and often deadly disease. Botulinum neurotoxin binds to neural cells and are translocated into the cytosol. The toxin then prevents neurotransmitter release by cleaving a SNARE protein. A double mutant E224A/E262 full length botulinum neurotoxin Type A holo form was successfully cloned and purified, which lacks the endopeptidase activity involved in the toxic action of the BoNT, and thus leading to its detoxification (DR BoNT/A). This new molecule can be used as an antidote against botulism, and also as a vaccine candidate for botulism. Due to the poor availability and extreme toxicity of native holo-toxin, a nontoxic form of the holo-toxin is highly desired for research and vaccine development.

Abstract: A testing method of nucleic acid binding protein based on biochip, comprises the following steps: 1. puts a plurality of groups solution including nucleic acid captured probes into biological sample including a plurality of nucleic acid binding protein to be test, and thus forming nucleic acid captured probe-nucleic acid binding protein complexes; such nucleic acid captured probe includes at least a segment of binding sequence which can bind with aimed nucleic acid binding protein; 2. separates such nucleic acid captured probe-nucleic acid binding protein complexes, then recoveries nucleic acid captured probes; 3. hybridizes the nucleic acid captured probes according to step 2 with a plurality of single strand blotting probes on biochip substrate; the sequence of such blotting probe compensates with such nucleic acid captured probe or one of its strand; 4. detects the result of hybridization.

Abstract: This invention relates generally to the field of moiety or molecule isolation, detection and manipulation and library synthesis. In particular, the invention provides a microdevice, which microdevice comprises: a) a magnetizable substance; and b) a photorecognizable coding pattern, wherein said microdevice has a preferential axis of magnetization. Systems and methods for isolating, detecting and manipulating moieties and synthesizing libraries using the microdevices are also provided.