Abstract: A microfluidic device containing an inlet, a microchannel in fluid communication with the inlet, and a plurality of outlets in fluid communication with the microchannel. The microchannel contains a loop; or from about 1 loop to about 50 loops; or from about 2 loops to about 25 loops; or from about 5 loops to about 15 loops. A method for detecting an infected cell may employ the microfluidic device.

Abstract: The present disclosure provides a data maximum/minimum value (max/min) aggregation method and system for privacy protection. A Paillier cryptosystem is used to encrypt user data, so as to protect privacy and security of user health data. Further, time aggregation is implemented to help a control center obtain an overall health condition of a client in one aggregation period. By using a homomorphic property of the Paillier cryptosystem, the present disclosure implements aggregation of a max/min of privacy protection, and helps the control center obtain a max or a min of health data of the client in the aggregation period.

Abstract: A dynamic and verifiable searchable encryption method based on updatable encryption and blockchain and a system thereof are provided. The method is suitable for the real scene where the data user and the data owner are not the same party. The method adopts the updatable technology to update the secret key in the searchable encryption, and the security of the key update could achieve Chosen Ciphertext Security (CCA) and Ciphertext Integrity (CTXT) security. In addition, the method is used to judge whether the cloud server is “trustworthy” by verifying the search results publicly based on the blockchain. Therefore, the verifiable dynamic searchable encryption method based on updatable encryption and blockchain has been greatly improved in terms of practicability and security.

Abstract: A computer-implemented method for determining a path arrangement of an infrastructure link network with a trunk-and-branch topology. The method includes: modelling a geographic terrain including three or more geographic locations that are connectable with each other via an infrastructure link network; determining a cost function associated with a cost for constructing the infrastructure link network that connects the three or more geographic locations; and determining a path arrangement of the infrastructure link network based on the modelled geographic terrain and by optimizing the cost function taking into account one or more constraints. The path arrangement of the infrastructure link network has a trunk-and-branch topology and includes: three or more infrastructure links that connect the three or more geographic locations, and one or more connection points each arranged between two or more of the infrastructure links.

Abstract: A computer-implemented method for facilitating encoding of video data. The method includes performing an operation to determine prediction residuals associated with a unit of the video data, and, processing, using a neural network arrangement, the prediction residuals associated with the unit of the video data to determine model parameters associated with a rate-distortion model for the unit of the video data. The model parameters are arranged to facilitate encoding of at least the unit of the video data. The method can be applied to multiple ones of such unit of the video data.

Abstract: There are provided a colloidal crystal having a four-fold symmetric pattern and capable of stably existing even in a geometrically unconstrained space, and a method for producing the same. The colloidal crystal of the present invention exists in a geometrically unconstrained space and has a four-fold symmetric pattern. The colloidal crystal of the present invention can be produced by filling a dispersion of colloidal particles between a substrate 1 and an opposed plate 2 facing the substrate 1 to precipitate a charged colloidal crystal having a four-fold symmetric pattern (crystallization step S1); and electrostatically adsorbing and immobilizing, onto the substrate 1, the charged colloidal crystal having a four-fold symmetric pattern (immobilization step S2).

Abstract: The present invention provides a stretchable and flexible multi-leads ECG monitoring apparatus having a primary circuitry encased in a thin and flexible polymer patch configured to be worn on a human body. At least four flexible leads are connected to the primary circuitry at a first end and are configured to be connected to ECG electrode patches at a second end. The ECG electrode patches being configured to be attached to a plurality positions on a human body. The wireless transmitter is configured to transmit the ECG monitoring signals to a receiving device for recording or displaying the ECG monitoring signal.

Abstract: A compound including a general formula of D-L-A particularly with the structure of Formula (A). A nanoparticle of the compound of the present invention. A pharmaceutical composition including the compound of the present invention as an active ingredient and a pharmaceutically acceptable carrier. A method of treating a target tissue including administering to a patient in need thereof a compound of the present invention and administering to the target tissue radiation in an amount and of a wavelength effective to activate the compound. Also use of the compound of the present invention in preparation of a medicament for treating the target tissue by photodynamic therapy.

Abstract: An antenna for a phased array antenna. The antenna includes a substrate, a radiation element arranged on the substrate, and a radiation pattern shaping mechanism operable to reduce central radiation provided by the radiation element during operation.

Abstract: There is provided a computer-implemented method for learned video compression, which includes processing a current frame (xt) and previously decoded frame ({circumflex over (x)}t-1) of a video data using a motion estimation model to estimate a motion vector (vt) for every pixel, compressing the motion vector (vt) and reconstructing the motion vector (vt) to a reconstructed motion vector ({circumflex over (v)}t), applying an enhanced context mining (ECM) model to obtain enhanced context ({umlaut over (C)}E) from the reconstructed motion vector ({circumflex over (v)}t) and previously decoded frame feature (x?t-1), compressing the current frame (xt) with the assistance of the enhanced context ({umlaut over (C)}E) to obtain a reconstructed frame ({circumflex over (x)}?t), and providing the reconstructed frame ({circumflex over (x)}?t) to a post-enhancement backend network to obtain a high-resolution frame ({circumflex over (x)}t).

Abstract: One aspect of the present invention is concerned with a method of preparing a catalyst for use in synthesizing ammonia from nitrate. The method has the steps of i) providing a nickel foam material, ii) removing an oxide layer on the nickel foam material, iii) subjecting the nickel foam material to cooper sulphate (Cu2SO4) solution for a predetermined period of time for forming a copper (Cu) dopped nickel foam electrode, and iv) subjecting the Cu dopped nickel foam electrode to an annealing treatment at a predetermined temperature for a predetermined period of annealing time in atmospheric air thus forming a catalyst of copper oxide-nickel oxide nickel foam (CuO/NiO@NF) with a heterostructure. Other aspects of the invention are concerned with a method of preparing an electrolytic cell for use in synthesizing of ammonia, and a method of synthesis of ammonia from nitrate.

Abstract: The present invention provides a system for implementing a logistic regression classification mechanism to measure and assess a depth of anesthesia of an animal subject based on electroencephalography (EEG), which includes a signal pre-processor, an epoch generator, a feature extractor, a classifier, and a predictor. Related method of how to pre-process the raw data of EEG signal, epoch generation thereof, feature extraction from each epoch, classification based on extracted features, and prediction of different states of the animal subject based on a prediction decision mechanism is also provided. Classification accuracy of the present invention for 1-second and 10% overlapping epochs is about 94% with an average total system delay of about 12 ?s and low on-chip power consumption. The present system is entirely optimized, which leads to a 100% accurate channel prediction after a 7-second run-time on average.

Abstract: A cryptosystem processor includes a twiddle factor memory, a SRDGT BFU, and a SPN. The twiddle factor memory has ZETA ports. The at least one SRDGT BFU has six input ports and four output ports and switchable among operation in DGT/IDGT/CWM mode, in which two of the input ports electrically communicate with the ZETA ports, respectively. The SRDGT BFU is configured to read and write two data points when working under the DGT/IDGT mode and is configured to read and write four data points when working under the CWM mode. The SPN electrically communicates with the SRDGT BFU and has at least one dual-port BRAM serving as memory cache configured to store polynomial, in which the SPN is configured to support the required number of data points reading or writing per cycle in the DGT/IDGT/CWM mode.

Abstract: The present invention discloses a method for private set intersection in a smart city system, a device, and a storage medium. According to the present invention, a threshold secret sharing technology is adopted to share a private set among three parties, so that an intersection cardinality is hidden and security of private set intersection is improved. Before two parties perform the private set intersection, a blockchain is used to verify identities of the two parties, which protects security of data of the two parties to a certain extent. In addition, according to the present invention, the private set is divided into a plurality of subsets with labels, which implements an interaction manner with finer granularity. Therefore, compared with a private set intersection solution in a previous smart city system, the present invention is greatly improved in practicability, security, and other aspects.

Abstract: Displacement measurement systems, measurement methods and EUV lithography machines for quantum meta-structure elements are disclosed, which include: an entangled state light source generator, a meta-device, a collimating lens, a polarizing beam splitter, and a computing section. Left-rotation photon and the right-rotation photon are projected to the polarizing beam splitter, and the correlation between output ports of two polarizing beam splitters is counted for reading to measure the displacement of the meta-device element. The displacement of the meta-structure element is measured in a manner that realizes the correlation between the left-rotation photons and the right-rotation photons.

Abstract: A heating system for use in the solar powered heating of water. In one embodiment, the heating system is used in conjunction with a solar water farm to desalinate water. The water farm can be utilized on a variety of scales and can be applied to agricultural farms for large scale reclamation of deserts.

Abstract: A system for processing photoacoustic and ultrasound imaging data includes processor(s) and memory storing program(s) configured to be executed by the processor(s). The program(s) include instructions for: obtaining ultrasound imaging data representative of an ultrasound image of the object, performing a speed of sound value optimization operation based on the ultrasound imaging data for facilitating image reconstruction, and performing an image reconstruction operation. The ultrasound imaging data is obtained from a system for photoacoustic imaging and ultrasound imaging.

Abstract: The present invention provides a system for artificially inducing and regulating “tissue interactions” among multiple tissues. A construct for transplantation into a living body, which comprises a structure and a cell mass linked to each other, the structure being an object having a three-dimensional structure and capable of mimicking or resembling a structure and/or a function of the living body.

Abstract: The surface of low-dimensional perovskites plays a crucial role in determining their intrinsic properties. Thus, specific surfaces may be designed to obtain a desired characteristic and/or a functional structure. Further, surface passivation could also be applied to stabilize and optimize the state-of-the-art perovskite-based optoelectronics. CsPbBr3 microwires parallel arrays with specific (100)-terminated crystal planes were designed and fabricated to have excellent photodetection performance with long-term environment stability over 3000 hours. Further, environmental oxygen may be used to passivate the Br-vacancy-related trap states on the (100) surface and to create charge carrier nanochannels to enhance the (opto)electronic properties. The coupling effects between oxygen species and the specific terminated crystal planes of perovskites highlight the importance of surface engineering for designing and optimizing perovskite-based devices.

Abstract: Disclosed are a soft bistable magnetic actuator, a fatigue testing device, and an auto underwater vehicle. The soft bistable magnetic actuator includes a soft precursor. The soft precursor consisting of a soft deformable portion and a soft peripheral portion surrounded. The soft precursor is cast by injection molding, and the soft deformable portion is made of magnetic particles and polymer, and the soft peripheral portion is made of magnetic particles, a mixture of organic liquid and polymer, and the soft deformable portion is buckled by extracting the organic liquid by an organic solvent to shrink the soft peripheral portion.