Abstract: A system of underwater swarm of robotic fish for monitoring and telepresence. The system comprising a floating platform communicatively coupled to a controller, a submersible sinker communicatively coupled to the floating platform, and a plurality of underwater drones communicatively coupled to the submersible sinker. The controller is configured to receive instructions from an operator for remotely exploring an underwater environment using the submersible sinker and the plurality of underwater drones, transmit the instructions to the plurality of underwater drones via the floating platform and the submersible sinker, the instructions directing the plurality of underwater drones to navigate the underwater environment and collect data, receive the collected data from the plurality of underwater drones via the floating platform and the submersible sinker, and display the collected data to the operator via a virtual display.

Abstract: A method and system for fingerprint positioning based on 5G multi-beam downlink signals, includes: extracting multi-beam SSB from 5G downlink signals, and obtaining multi-beam SSS signal and DM-RS signal from multi-beam SSB; calculating multi-beam reference signal received power RSRP based on multi-beam SSS signal and DM-RS signal; calculating the RSSI of 5G downlink synchronization channel based on multi-beam SSB autocorrelation, and calculating the multi-beam reference signal received quality RSRQ based on multi-beam RSRP and RSSI; stacking the multi-beam RSRP and RSRQ to form multi-beam fingerprint features; inputting multi-beam fingerprint characteristic into neural networks, and the neural networks output positioning results.

Abstract: A sensor for measuring ocean water salinity is described. The sensor may include a measurement clock circuit, a control clock circuit, and a comparator circuit. The measurement clock circuit, having an output that varies with salinity of a fluid, may have a first circuit architecture that includes a capacitive gap assembly that permits a fluid to flow into a gap between two electrodes of the capacitive gap assembly. The control clock circuit, having an output that does not vary with salinity of the fluid, may have a second circuit architecture comprising a capacitor. The comparator circuit may be configured to compare the controlled clock output to the measured clock output over a duration of time to determine a salinity measurement of the fluid.

Abstract: Carbon nanofiber doped alumina (Al—CNF) supported MoCo catalysts in hydrodesulfurization (HDS), and/or boron doping, e.g., up to 5 wt % of total catalyst weight, can improve catalytic efficiency. Al—CNF-supported MoCo catalysts, (Al—CNF—MoCo), can reduce the sulfur concentration in fuel, esp. liquid fuel, to below the required limit in a 6 h reaction time. Thus, Al—CNF—MoCo has a higher catalytic activity than Al—MoCo, which may be explained by higher mesoporous surface area and better dispersion of MoCo metals on the AlCNF support relative to alumina support. The BET surface area of Al—MoCo may be 75% less than Al—CNF—MoCo, e.g., 166 vs. 200 m2/g. SEM images indicate that the catalyst nanoparticles can be evenly distributed on the surface of the CNF. The surface area of the AlMoCoB 5% may be 206 m2/g, which is higher than AlMoCoB 0% and AlMoCoB 2%, and AlMoCoB 5% has the highest HDS activity, removing more than 98% sulfur and below allowed levels.

Abstract: Provided are a method for detecting a free rare tumor cell in a human biological fluid sample and assay kit. Specifically, the method of the invention determines the existence of an active tumor cell in a biological fluid sample of a cancer patient by detecting and confirming the existence of glucose absorption capability of a karyocyte and expression of a leukocyte marker (CD45).

Abstract: A thermoelectric material comprising carbon nanotubes and lignin. The carbon nanotubes are present as fibres and the lignin is present in pores and/or voids in the carbon nanotube fibres. The lignin may act as a dopant to increase the thermoelectric efficiency of the carbon nanotubes, multi-walled carbon nanotubes in particular. A method of forming a thermoelectric material involving impregnating fibres of carbon nanotubes with lignin, is also provided. A thermoelectric element, a fabric and a thermoelectric device comprising the thermoelectric material are also provided. The thermoelectric material may be particularly useful for the production of wearable thermoelectric devices.

Abstract: This invention relates to polynucleotides comprising optimized CLN5 open reading frame (ORF) sequences, vectors comprising the same, and methods of using the same for delivery of the ORF to a cell or a subject and to treat disorders associated with aberrant expression of a CLN5 gene or aberrant activity of a CLN5 gene product in the subject, such as CLN5 disease.

Abstract: Provided are a device for detecting sub-atomic particles and method of fabrication thereof. The device includes a plurality of scintillators, a detector provided on a first end of the plurality of scintillators and a prismatoid provided on a second end of the plurality of scintillators. The prismatoid redirects light between adjacent scintillators of the plurality of scintillators.

Abstract: A radiation shielding material for shielding against gamma radiation includes neodymium-doped zirconia nanoparticles in a matrix. The neodymium doped zirconia nanoparticles have a tetragonal crystal structure and an average size between about 25 nm to about 35 nm. The nanoparticles have a neodymium content in the range of about 1.5 mol % to about 3 mol % based on the total molar content of the zirconia nanoparticles. A method for the synthesis of neodymium-doped zirconia nanoparticles is provided. The method includes controlled metamorphosis of zirconia from monoclinic to tetragonal phase which results in a multifunctional shielding material having durability and high radiation absorption efficiency.

Abstract: Carbon nanofiber doped alumina (Al—CNF) supported MoCo catalysts in hydrodesulfurization (HDS), and/or boron doping, e.g., up to 5 wt % of total catalyst weight, can improve catalytic efficiency. Al—CNF-supported MoCo catalysts, (Al—CNF—MoCo), can reduce the sulfur concentration in fuel, esp. liquid fuel, to below the required limit in a 6 h reaction time. Thus, Al—CNF—MoCo has a higher catalytic activity than Al—MoCo, which may be explained by higher mesoporous surface area and better dispersion of MoCo metals on the AlCNF support relative to alumina support. The BET surface area of Al—MoCo may be 75% less than Al—CNF—MoCo, e.g., 166 vs. 200 m2/g. SEM images indicate that the catalyst nanoparticles can be evenly distributed on the surface of the CNF. The surface area of the AlMoCoB5% may be 206 m2/g, which is higher than AlMoCoB0% and AlMoCoB2%, and AlMoCoB5% has the highest HDS activity, removing more than 98% sulfur and below allowed levels.

Abstract: A precise cardiac data reconstruction method is provided, which may also be referred to herein as radar cardiography (RCG). RCG can reconstruct cardiac data, such as heart rate and/or electrocardiogram (ECG)-like heartbeat waveform signals wirelessly by using advanced radar signal processing techniques. For example, heartbeat and related characteristics can be monitored by isolating cardiovascular activity from strong respiratory interference in spatial spaces: azimuth and elevation. This results in significant improvements to pulse signal-to-noise-ratio (SNR) compared to conventional approaches, facilitating heart-rate variability (HRV) analysis.

Abstract: A compound of formula I, a pharmaceutically acceptable salt thereof, or a solvent compound, an enantiomer, a diastereomer or a tautomer of the compound or a pharmaceutically acceptable salt thereof is disclosed. The 3H-imidazo[4,5-C]pyridine pleuromutilin onium salt derivatives exhibit good water solubility and excellent activity against resistant mycoplasma, in vivo and in vitro antibacterial activity, and are of great value in the development of anti-resistant bacteria drugs and have good medical application prospects.

Abstract: The present invention is directed to a method of species identification and quality detection of liquid-like samples based on nuclear magnetic resonance technology. In this invention, a two-dimensional relaxation signal containing the 1H T1 and T2 relaxation properties of liquid-like samples is obtained by applying a composite pulse sequence to samples, and from this a fingerprint spectrum is established. The fingerprint spectrum can be associated with the essential characteristics of the tested sample, thus can be used to distinguish a specific liquid-like sample from the others.

Abstract: A wall thickness estimation method includes: obtaining behavioral information based on a video in which an organ wall or a blood vessel wall is captured using four-dimensional angiography, the behavioral information being numerical information about changes over time in a position of each of a plurality of predetermined points in the organ wall or the blood vessel wall; generating, based on the behavioral information obtained in the obtaining, estimation information that visualizes mass of each of the plurality of predetermined points for estimating a thickness of the organ wall or a thickness of the blood vessel wall; and outputting the estimation information generated in the generating.

Abstract: A plasma etching method includes a first step of supplying a mixed gas containing vaporized heptafluoroisopropyl methyl ether gas having a molecular structure of a following Chemical Formula 1 or vaporized heptafluoropropyl methyl ether gas having a molecular structure of a following Chemical Formula 2 and argon gas into a plasma chamber in which an etching target is disposed; and a second step of etching the etching target using plasma generated from the mixed gas:

Abstract: The present invention provides an artificial nucleic acid-cleaving enzyme comprising: a nuclease domain which is a polypeptide containing an amino acid sequence set forth at positions 391 to 585 of SEQ ID NO: 1 or positions 389 to 579 of SEQ ID NO: 3, or a mutant polypeptide thereof; and a nucleic acid-binding domain.

Abstract: A dental polishing paste and a method of surface finishing a dental ceramic with the dental polishing paste is described. The dental polishing paste includes 60 to 90 weight percentage (wt. %) glycerin; 7.5 to 17.5 wt. % inorganic nanoparticles such as, diamond or zirconia, having a mean particle size of 5 to 25 nanometer (nm); and 2.5 to 32.5 wt. % additive, each based on a total weight of dental polishing paste.

Abstract: In some aspects, a device may receive measurement data associated with a measurement subject. The device may determine an adsorption isotherm for the measurement subject based on the measurement data. The device may determine a thermodynamic adsorption capacity of the measurement subject based on the adsorption isotherm. The device may determine a surface area value associated with the measurement subject based on the thermodynamic adsorption capacity. The device may provide an output based on the adsorption capacity or the surface area value associated with the measurement subject.

Abstract: A hybrid Hidden Markov Model (HMM) and Machine Learning (ML) systems and apparatus for classification in the case of data instances with imbalanced class distribution, including a Hidden Markov Model for generating a log-likelihood score for each data instance. Implementations of the hybrid system and method detect fraudulent activity and classifies documents with accuracy that surpasses conventional classifiers. In one implementation, Hidden Markov Model (HMM) for generating a log-likelihood score based on an attribute value vector for a set of keyword features characterizing a Web page. In one implementation, the HMM generates a log-likelihood score based on an attribute value vector for page layout characterizing a document image. Resulting attribute value vectors are ranked and divided into bins grouped by log-likelihood scores within equal ranges. Various machine learning models are trained using the balanced vectors obtained by accumulating from all the bins of vectors.

Abstract: The present disclosure provides an ion trap apparatus and a saddle point moving method for the ion trap apparatus. The ion trap apparatus comprises: an insulating base material, the insulating base material being a concave structure; and at least two segments of arc-shaped metal reflective electrodes, wherein the arc-shaped metal reflective electrodes cover the front side of the insulating base material, the front side being a concave surface; each segment of the arc-shaped metal reflective electrodes is electrically insulated; and each segment of the arc-shaped metal reflective electrodes is used to receive a radio frequency voltage which has the same frequency, the same phase and an adjustable amplitude. The apparatus may achieve ideal imaging while improving the light collection efficiency, thereby improving the success rate of the preparation of ion-photon entangled states.