Abstract: Disclosed are a material analysis method based on the crystal structure database, a system, a computer-readable storage medium and an application. The material analysis method includes comparing experimental pattern information obtained from examination of a to-be-tested sample with theoretical pattern information calculated from material structure data in the crystal structure database, and obtaining crystallographic information and phase composition of the to-be-tested sample through intelligent analysis. The crystallographic information include space group, unit cell parameter, and specific coordinates of atoms in unit cell. The crystal structure database has material structure data obtained by experimental measurement and/or theoretical prediction, including chemical formula, space group, unit cell parameter and specific coordinates of atoms in unit cell.

Abstract: An electrical connector includes a connector body, multiple regions are separated on the connector body, multiple terminal slots are arranged in each region, terminal slots in two adjacent regions are of mirror symmetry, the terminal slot is configured to enable an electrical contact to be inserted, and the electrical contact is configured to be electrically connected to the chip module. By designing the terminal slots in two adjacent regions into a mirror-symmetry configuration, the overall warpage form of the electrical connector is manifested as a twisted configuration along the length and width directions of the electrical connector.

Abstract: A system of automatic adjustment of a laser reflection path, comprising a central processing device, a driving device, a four-quadrant photodetector, a driving arm, a micro cantilever, a sample, a sample placing table, a light reflector, a laser, a CCD equipped with an optical microscope, a vibration sensor, a signal processing circuit, a display device, a storage device, and a control device; a system of automatic adjustment of the laser reflection path is controlled by the control device, wherein a laser beam is emitted by the laser, an image collected by the CCD equipped with the optical microscope is processed by the central processing device to identify the micro cantilever, and then a driving arm is driven by a driving device to drive the micro cantilever to move to the center of a laser spot, during which vibration signals of the driving arm are also under monitoring.

Abstract: Disclosed are a material analysis method based on the crystal structure database, a system, a computer-readable storage medium and an application. The material analysis method includes comparing experimental pattern information obtained from examination of a to-be-tested sample with theoretical pattern information calculated from material structure data in the crystal structure database, and obtaining crystallographic information and phase composition of the to-be-tested sample through intelligent analysis. The crystallographic information include space group, unit cell parameter, and specific coordinates of atoms in unit cell. The crystal structure database has material structure data obtained by experimental measurement and/or theoretical prediction, including chemical formula, space group, unit cell parameter and specific coordinates of atoms in unit cell.

Abstract: A modular connector with components that can be economically assembled to provide high signal integrity in a harsh environment. The connector includes an insulative housing bounding a mating interface, a conductive housing engaging a rear of the insulative housing and having tubes extending through the rear of the insulative housing to the mating interface, and lead assemblies disposed in respective tubes. The conductive housing has a channel extending from its top to its front. The insulative housing has a top extension extending beyond its rear, and a locking feature extending from its rear into the channel through the front of the conductive housing. A member is disposed in the channel and has opposite ends disposed in the top extension and locking feature of the insulative housing, respectively. Such a configuration prevents relative movement of components within the connector in a harsh environment and therefore provide more consistent signal paths.

Abstract: Disclosed is a method for detecting densely occluded fish based on a YOLOv5 network, belonging to the technical field of fish images. The method includes a data set establishment and processing part, a model training part and a model testing part; the data set establishment and processing part includes data collection of fish pictures, data labelling and data division of the fish pictures; and the data division is to divide data into a training set, a verification set and a test set.

Abstract: Provided is an apparatus, system and method for on-chip microfluids dispensing. The apparatus comprising a substrate; a plurality of first electrodes arranged one next to another on the substrate; a dielectric layer above and enclosing the plurality of first electrodes; and a second electrode on the substrate, wherein each of the plurality of first electrodes is in electric communication with a respective first driving signal input; wherein the second electrode is in electric communication with a second driving signal input; wherein the plurality of first electrodes define a continuous fluid path along a longitudinal direction for retaining microfluids, and wherein the second electrode is arranged within the continuous fluid path and defines a jetting position and an adjacent mixing position within the continuous fluid path.

Abstract: A system for simultaneously and microscopically measuring vapor cell coating film energy transfer and relaxation characteristics at nanometer scales includes a space relaxation characteristic detection unit which includes a laser, an optical isolator, a spatial light filter, a reflector, a Glan-Taylor polarizer, a first quarter-wave plate, a spatial light modulator, a focusing lens, a second quarter-wave plate, a polarizing film, a PD detection unit, an I/V amplification unit, a data acquisition unit, a spectroscope and an optical chopper, an atomic force microscope detection unit for energy transfer micro-areas, a shielding cylinder, a coated alkali metal atomic vapor cell, a data processing unit and a magnetic field controlled coil.

Abstract: The present disclosure provides an open-air circulating pool for simulating ecological damage, and belongs to the technical field of simulation tests of ecological environment impact. The open-air circulating pool is provided with a set of devices for simulating natural ecological environments of different water quality and sediments, as well as changes in water bodies caused by a sea occupation project, discharge of a typical pollution source and a sudden leakage accident, so as to observe changing trends of an aquatic organism and an environmental element, and qualitatively and quantitatively determine a law of causality of damage. The set of devices includes an open-air wave-flow circulating pool, an additive injection apparatus and an ecological indicator sampling and detection apparatus.

Abstract: Provided is a digital microfluidic device for quick polymerase chain reaction. The digital microfluidic device includes an enclosed chamber for holding droplets comprising PCR mixtures. The chamber has an upper layer and a lower layer, which provide a top heater and a bottom heater contained in a thermal electrode respectively to form dual heaters. The lower layer further has an array of electrodes and a dielectric layer, e.g. Norland Optical adhesive 61, coating thereon. Such arrangement of the digital microfluidic device allows quick and homogeneous heating of droplets to lower the heating voltage, shorten the reaction time, and prevent the dielectric layer from breakdown during the thermal cycle.

Abstract: In one aspect, methods of targeted nanoparticles and cell delivery are described herein. In some embodiments methods described herein comprise coupling nanoparticles and cells to a carrier cell to form a nanoparticle-cell conjugate or cell-cell conjugate, disposing the nanoparticle-cell or cell-cell conjugate in a biological environment, and delivering the nanoparticles and cells to target cells or tissues located within the biological environment. The nanoparticles comprise a biodegradable photoluminescent polymer, and the nanoparticle-cell conjugate is formed using one or more click chemistry reaction products.

Abstract: A system for simultaneously and microscopically measuring vapor cell coating film energy transfer and relaxation characteristics at nanometer scales includes a space relaxation characteristic detection unit which includes a laser, an optical isolator, a spatial light filter, a reflector, a Glan-Taylor polarizer, a first quarter-wave plate, a spatial light modulator, a focusing lens, a second quarter-wave plate, a polarizing film, a PD detection unit, an I/V amplification unit, a data acquisition unit, a spectroscope and an optical chopper, an atomic force microscope detection unit for energy transfer micro-areas, a shielding cylinder, a coated alkali metal atomic vapor cell, a data processing unit and a magnetic field controlled coil.

Abstract: The present disclosure provides an open-air circulating pool for simulating ecological damage, and belongs to the technical field of simulation tests of ecological environment impact. The open-air circulating pool is provided with a set of devices for simulating natural ecological environments of different water quality and sediments, as well as changes in water bodies caused by a sea occupation project, discharge of a typical pollution source and a sudden leakage accident, so as to observe changing trends of an aquatic organism and an environmental element, and qualitatively and quantitatively determine a law of causality of damage. The set of devices includes an open-air wave-flow circulating pool, an additive injection apparatus and an ecological indicator sampling and detection apparatus.

Abstract: A system of automatic adjustment of a laser reflection path, comprising a central processing device, a driving device, a four-quadrant photodetector, a driving arm, a micro cantilever, a sample, a sample placing table, a light reflector, a laser, a CCD equipped with an optical microscope, a vibration sensor, a signal processing circuit, a display device, a storage device, and a control device; a system of automatic adjustment of the laser reflection path is controlled by the control device, wherein a laser beam is emitted by the laser, an image collected by the CCD equipped with the optical microscope is processed by the central processing device to identify the micro cantilever, and then a driving arm is driven by a driving device to drive the micro cantilever to move to the center of a laser spot, during which vibration signals of the driving arm are also under monitoring.

Abstract: In one aspect, methods of targeted nanoparticle and cell delivery are described herein. In some embodiments, methods described herein comprise coupling nanoparticles and cells to a carrier cell to form a nanoparticle-cell conjugate or cell-cell conjugate, disposing the nanoparticle-cell or cell-cell conjugate in a biological environment, and delivering the nanoparticles and cells to target cells or tissues located within the biological environment. The nanoparticles comprise a biodegradable photoluminescent polymer, and the nanoparticle-cell conjugate is formed using one or more click chemistry reaction products.

Abstract: Provided is an apparatus, system and method for on-chip microfluids dispensing. The apparatus comprising a substrate; a plurality of first electrodes arranged one next to another on the substrate; a dielectric layer above and enclosing the plurality of first electrodes; and a second electrode on the substrate, wherein each of the plurality of first electrodes is in electric communication with a respective first driving signal input; wherein the second electrode is in electric communication with a second driving signal input; wherein the plurality of first electrodes define a continuous fluid path along a longitudinal direction for retaining microfluids, and wherein the second electrode is arranged within the continuous fluid path and defines a jetting position and an adjacent mixing position within the continuous fluid path.

Abstract: In one aspect, methods of targeted nanoparticles and cell delivery are described herein, In some embodiments methods described herein comprise coupling nanoparticles and cells to a carrier cell to form a nanoparticle cell conjugate or cell-cell conjugate disposing the nanoparticle cell or cell-cell conjugate in a biological environment and delivering the nanoparticles and cells to target cells or tissues located within the biological environment The nanoparticles comprise a biodegradable photoluminescent polymer, and the nanoparticle cell conjugate is formed using one or more click chemistry reaction products

Abstract: In one aspect, methods of targeted nanoparticle and cell delivery are described herein. In some embodiments, methods described herein comprise coupling nanoparticles and cells to a carrier cell to form a nanoparticle-cell conjugate or cell-cell conjugate, disposing the nanoparticle-cell or cell-cell conjugate in a biological environment, and delivering the nanoparticles and cells to target cells or tissues located within the biological environment. The nanoparticles comprise a biodegradable photoluminescent polymer, and the nanoparticle-cell conjugate is formed using one or more click chemistry reaction products.

Abstract: Provided is a digital microfluidic device for quick polymerase chain reaction. The digital microfluidic device includes an enclosed chamber for holding droplets comprising PCR mixtures. The chamber has an upper layer and a lower layer, which provide a top heater and a bottom heater contained in a thermal electrode respectively to form dual heaters. The lower layer further has an array of electrodes and a dielectric layer, e.g. Norland Optical adhesive 61, coating thereon. Such arrangement of the digital microfluidic device allows quick and homogeneous heating of droplets to lower the heating voltage, shorten the reaction time, and prevent the dielectric layer from breakdown during the thermal cycle.