Abstract: Retina digital imaging system, instrument and method A retina digital imaging system includes: an illumination module (1), a main optical assembly (3), and an image sensor module (2); the illumination module (1) includes light-emitting diodes capable of emitting light with different wavelengths, and each light-emitting diode emits light to enter the retina through the main optical assembly (3) to form an illumination optical path; the light reflected by the retina passes through the main optical assembly (3) and forms an image on the image sensor module (2) to form an imaging optical path. The various spectral bands formed by light-emitting diodes may form a wider spectrum, so different layers of the retina may be imaged to provide valuable medical and diagnostic data.

Abstract: A signal transmission apparatus includes: a shielding cabinet and at least one group of first signal transceiver assemblies, at least one antenna assembly, and a first installation structure that are disposed inside the shielding cabinet, where the first installation structure has a one-to-one correspondence with the at least one group of first signal transceiver assemblies, each antenna assembly includes an antenna probe and a signal cable that are connected to each other, and the antenna probe performs, by using the signal cable, signal transmission with another signal transmission apparatus disposed outside the shielding cabinet; signal transmission is performed between the first signal transceiver assembly and the antenna probe in a wireless manner; and each first installation structure can drive a corresponding group of first signal transceiver assemblies to move.

Abstract: Methods and systems are provided for determining high-dynamic range lighting parameters for input low-dynamic range images. A neural network system can be trained to estimate lighting parameters for input images where the input images are synthetic and real low-dynamic range images. Such a neural network system can be trained using differences between a simple scene rendered using the estimated lighting parameters and the same simple scene rendered using known ground-truth lighting parameters. Such a neural network system can also be trained such that the synthetic and real low-dynamic range images are mapped in roughly the same distribution. Such a trained neural network system can be used to input a low-dynamic range image determine high-dynamic range lighting parameters.

Abstract: Cellulose II nanocrystal particles have a crystallinity ?80%, a number-average molecular weight ranging from 1200 to 2500, and a molecular weight distribution coefficient Mw/Mn?1.30. The cellulose II nanocrystal particles can be prepared by: subjecting a cellulose raw material to an amorphization reconstitution and then to a crystallization acidolysis. The crystallization acidolysis may be carried out under a low concentration acidic condition. The method enables high efficient and clean production and quality control of cellulose nanocrystal materials.

Abstract: A management server may provide distribute flow control to a computer server system for providing online services to users. The computer server system includes a bus cluster, a plurality of caller systems, and a plurality of callee clusters. The management server may be configured to receive from the bus cluster health condition data of a callee cluster of the plurality of callee cluster in a first operation cycle; determine whether the callee cluster is slow or abnormal based on the health condition data in the first cycle; adjust a data flow limit in the bus cluster in a second cycle after the first cycle according to whether the callee cluster is slow or abnormal in the first cycle; and direct the bus cluster to control the data flow of the computer servers in the bus cluster in the second cycle according to the adjusted data flow limit.

Abstract: Provided is a use of tobacco gene NtTCTP for resisting potato virus Y in plants (PVY). The tobacco gene has a full length of 507 bp and encodes a protein containing 168 amino acids, the activity of which is closely related to the PVY-resistance of tobacco. When the gene is silenced in tobacco, tobacco shows stronger resistance to PVY and can reach immune levels; and when the gene is overexpressed in the tobacco; and tobacco becomes more sensitive to PVY. The gene can be used in the breeding of PVY-resistant plants such as tobacco.

Abstract: Systems and methods are provided for pushing messages. For example, upon receiving a push trigger message, one or more first user identifiers corresponding to the push trigger message are acquired; in response to the acquired first user identifiers being in a predetermined target user group, one or more first push messages are selected based on at least information associated with a first promotion type of the target user group; and the first push messages are pushed based on at least information associated with the first user identifiers, wherein the target user group includes a plurality of second user identifiers and is generated by statistical processing of first user attributes of registered user identifiers based on at least information associated with a predetermined first forecast model.

Abstract: A method for inducing continuous separation of copper ions from copper using UV-light source, comprising the following steps: (1) cutting apiece of copper into wires or slices for immersing into a vessel containing water; switching on a stirrer for stirring the water continuously and keeping the copper being immersed in the water; (2) turning on the UV-light source for irradiating the copper and the water continuously; appearing a large amount of white precipitate in the water; (3) filtering the solution; detecting the filtered solution, a certain concentration copper ions in the filtered solution are found; adding hydrochloric acid by drops into the unfiltered original solution, the white precipitate is dissolved and copper ions are detected. The invention makes the copper separate out copper ions continuously and can be applied to copper ion disinfection for swimming-pool water, scenic water and cooling water, etc.

Abstract: A system for purifying mother liquid steam of polytetrafluoroethylene dispersion liquid comprises a concentration kettle (1), a defoaming pot (2), a gas-liquid separator (3) and a falling film absorption tower (4). A steam exit of the concentration kettle (1) is connected to an entrance of the defoaming pot (2). An exit of the defoaming pot (2) is connected to a feeding port of the gas-liquid separator (3). A gas exit of the gas-liquid separator (3) is connected to the falling film absorption tower (4). A liquid exit of the gas-liquid separator (3) is connected to the concentration kettle (1). A method for purifying mother liquid steam of polytetrafluoroethylene dispersion liquid by using the system is further provided.

Abstract: A method for inducing continuous separation of copper ions from copper using UV-light source, comprising the following steps: (1) cutting apiece of copper into wires or slices for immersing into a vessel containing water; switching on a stirrer for stirring the water continuously and keeping the copper being immersed in the water; (2) turning on the UV-light source for irradiating the copper and the water continuously; appearing a large amount of white precipitate in the water; (3) filtering the solution; detecting the filtered solution, a certain concentration copper ions in the filtered solution are found; adding hydrochloric acid by drops into the unfiltered original solution, the white precipitate is dissolved and copper ions are detected. The invention makes the copper separate out copper ions continuously and can be applied to copper ion disinfection for swimming-pool water, scenic water and cooling water, etc.

Abstract: A management server may provide distribute flow control to a computer server system for providing online services to users. The computer server system may include a bus cluster, a plurality of caller systems, and a plurality of callee clusters. The management server may be configured to receive from the bus cluster health condition data of a callee cluster of the plurality of callee cluster in a first operation cycle of the computer server system; determine whether the callee cluster is slow or abnormal based on the health condition data in the first cycle; adjust a data flow limit in the bus cluster in a second cycle of the computer server system after the first cycle according to whether the callee cluster is slow or abnormal in the first cycle; and direct the bus cluster to control the data flow of the computer servers in the bus cluster in the second cycle according to the adjusted data flow limit.

Abstract: The present invention refers to a method and a kit for the diagnosis of a hepatic disease utilizing the sulfydryl-oxidizing property of serum. Sulfydryl can be oxidized by serum, due to the QSOXs and other macromolecules or small molecules in serum. The specific activity of QSOXs in serum can be detected by fluorescent quantification using Amplex UltraRed (AUR), horseradish perioxidase, dithiothreitol, and tween as key reagents. The total dithiol oxidated capacity of the serum can be detected by colorimetric quantification using dithiothreitol, dithio-bis-nitrobenzoic acid, and guanidine hydrochloride as key reagents. The present invention shows that the specific activity of QSOXs in serum and the total dithiol oxidated capacity of the serum can be used for the diagnosis of hepatic disease, wherein the total dithiol oxidated capacity of the serum shows better diagnostic effect.

Abstract: This invention relates to an extraction process of brown algae polysaccharides in a field of pharmaceutical chemistry. This invention particularly discloses a process of extracting brown algae polysaccharides based on a microwave chemistry method and brown algae polysaccharides obtained by said process. The process of the invention comprises: 1) putting pulverized brown algae powder into a microwave reaction chamber, adding acid solution to conduct reaction; optionally concentrating the mixer, and then washing with organic solvent to remove excess acid; conducting grading alcohol precipitation after water extract to obtain mannuronic acid rich fragment (M rich) algin, fucoidan and/or laminaran respectively; and adding an alkali solution to the brown algae residue to conduct alkaline digestion, filtering the residue off, adjusting pH of the filtrate to neutral, conducting alcohol precipitation to obtain guluronic acid rich fragment (G rich) algin precipitates.

Abstract: This invention relates to a field of pharmaceutical chemistry, relates to a process of extracting high water soluble polysaccharides from higher plants or fungi. The present invention discloses a process of extracting higher plants and fungi polysaccharides based on a microwave chemistry method, comprising: putting the residue or pulverized higher plants and fungi after being degreased by an organic solvent into a microwave reaction chamber to react with an acid solution; and then distilling to remove excess acid or washing with organic solvent to remove the acid; adding water solution for extraction, subjecting the extracting solution after concentration to alcohol precipitation, separating precipitates aka polysaccharides therefrom. The present invention has significant advantages like fast processing rate, high polysaccharides yield, low organic acid consumption and efficient and easy to recycle, low water consumption, low power consumption, etc.

Abstract: Systems and methods are provided for pushing messages. For example, upon receiving a push trigger message, one or more first user identifiers corresponding to the push trigger message are acquired; in response to the acquired first user identifiers being in a predetermined target user group, one or more first push messages are selected based on at least information associated with a first promotion type of the target user group; and the first push messages are pushed based on at least information associated with the first user identifiers, wherein the target user group includes a plurality of second user identifiers and is generated by statistical processing of first user attributes of registered user identifiers based on at least information associated with a predetermined first forecast model.

Abstract: A system for purifying mother liquid steam of polytetrafluoroethylene dispersion liquid comprises a concentration kettle (1), a defoaming pot (2), a gas-liquid separator (3) and a falling film absorption tower (4). A steam exit of the concentration kettle (1) is connected to an entrance of the defoaming pot (2). An exit of the defoaming pot (2) is connected to a feeding port of the gas-liquid separator (3). A gas exit of the gas-liquid separator (3) is connected to the falling film absorption tower (4). A liquid exit of the gas-liquid separator (3) is connected to the concentration kettle (1). A method for purifying mother liquid steam of polytetrafluoroethylene dispersion liquid by using the system is further provided.

Abstract: This invention relates to a field of pharmaceutical chemistry, relates to a process of extracting high water soluble polysaccharides from higher plants or fungi. The present invention discloses a process of extracting higher plants and fungi polysaccharides based on a microwave chemistry method, comprising: putting the residue or pulverized higher plants and fungi after being degreased by an organic solvent into a microwave reaction chamber to react with an acid solution; and then distilling to remove excess acid or washing with organic solvent to remove the acid; adding water solution for extraction, subjecting the extracting solution after concentration to alcohol precipitation, separating precipitates aka polysaccharides therefrom. The present invention has significant advantages like fast processing rate, high polysaccharides yield, low organic acid consumption and efficient and easy to recycle, low water consumption, low power consumption, etc.

Abstract: This invention relates to an extraction process of brown algae polysaccharides in a field of pharmaceutical chemistry. This invention particularly discloses a process of extracting brown algae polysaccharides based on a microwave chemistry method and brown algae polysaccharides obtained by said process. The process of the invention comprises: 1) putting pulverized brown algae powder into a microwave reaction chamber, adding acid solution to conduct reaction; optionally concentrating the mixer, and then washing with organic solvent to remove excess acid; conducting grading alcohol precipitation after water extract to obtain mannuronic acid rich fragment (M rich) algin, fucoidan and/or laminaran respectively; and adding an alkali solution to the brown algae residue to conduct alkaline digestion, filtering the residue off, adjusting pH of the filtrate to neutral, conducting alcohol precipitation to obtain guluronic acid rich fragment (G rich) algin precipitates.

Abstract: The present invention relates to a use of sodium selenosulfate for supplementing selenium and enhancing the therapeutic efficacy of chemotherapy agents for cancers, and a rapid process for preparing sodium selenosulfate comprising: mixing sodium selenite, the reducing agent and sodium sulfite in a certain proportion to form sodium selenosulfate quickly.

Abstract: Compositions and methods for imparting stress tolerance to plants using WRKY nucleic acid and polypeptides.