Abstract: A hard disk supporting structure is provided. The hard disk supporting structure includes a hard disk rack, a telescopic connecting rod, and a motor. The hard disk rack is for disposing at least one hard disk. An end of the telescopic connecting rod is connected to a rear end of the hard disk rack. The motor is connected to the other end of the telescopic connecting rod through a transmission mechanism; the motor drives the telescopic connecting rod to extend or retract through the transmission mechanism, to drive the hard disk rack to move back and forth. The present disclosure can automatically move the hard disk rack back and forth through a structure with automatic telescopic function, which saves labor, and improves efficiency.

Abstract: A device and a method are disclosed for collecting and culturing fish embryos and evaluating combined toxicity of thiamethoxam and tetraconazole. An embryo collection component and an embryo culture component are provided on a base plate. The embryo collection component includes a collection tray detachably connected to a bottom of a culture tube. The embryo culture component includes a cavity plate with a stopper inside and a top plate provided with a culture well. A bottom of the culture well is provided with a leakage hole; and after the top plate is installed into the cavity plate, the stopper occludes the leakage hole. The new device is used to carry out the combined toxicity effect test of thiamethoxam and tetraconazole on zebrafish embryos, which can be used to avoid development of pesticide mixtures that have a good preventive effect but pose increased toxicity risk to the ecological environment.

Abstract: The present disclosure discloses a novel strain of Glutamicibacter, derived from insects, which efficiently degrades bifenthrin, belonging to the field of microbial strains. The Glutamicibacter CCTCC NO: M20221445 of the present disclosure was isolated from the intestinal tract of bifenthrin-resistant Ectropis grisescens Warren larvae. It exhibits unique genomic characteristics, growth and phenotypic traits, physiological and biochemical characteristics, as well as the ability to utilize and degrade bifenthrin efficiently. Specifically, it can effectively degrade bifenthrin. Based on phenotypic features, physiological and biochemical characteristics, chemical composition, and molecular biology-based polyphasic classification, Glutamicibacter CCTCC NO: M20221445 is identified as a new species. This bacterium possesses the capability to efficiently degrade bifenthrin, laying the foundation for biological control of E. grisecens and offering new microbial resources to address pesticide residue problems.

Abstract: The present disclosure relates to a multi-thread controller for a parallel robot. All tasks are concentrated in four layered threads, namely, a main thread, a real-time thread, a preprocessing thread and a background thread; different priorities of tasks are placed in different levels of threads, so that motion logic is first ensured, second motion planning, then communication and interface interaction, and finally file reading and time consumption calculation; various operations are strictly performed in respective threads; and between the threads are provided a thread security queue for data interaction and a thread clock calling and task pushing mechanism, so that the security of communication calling and the flexibility of data interaction are realized between the threads.

Abstract: The present invention relates to the field of product quality analysis, and specifically, a test kit and detection method for testing isothiazolinone in textiles. A pretreatment step of the present invention adopts a unique process, which may fully transfer isothiazolinone to an acetone and water mixed solution, so that a more accurate measurement result can be achieved. The testing method of the present invention dose not add indicators, does not use large-scale analysis instruments, and is accurate in measurement, easy in reaction termination determination, high in accuracy, low in cost, and strong in popularization and application.

Abstract: The present invention relates to a method of improving soybean transformation efficiency, which comprises: transforming a plant cell using a recombinant vector containing a gene of interest and a gene encoding a sulfonylurea herbicide hydrolase; screening and culturing the transformed plant cell by external application of an ALS inhibitor, using the gene encoding the sulfonylurea herbicide hydrolase as a selective marker; selecting a plant cell that has not been killed and/or not been inhibited.

Abstract: An image processing apparatus according to an embodiment of the present disclosure includes processing circuitry. The processing circuitry is configured to obtain volume data of a subject. The processing circuitry is configured to obtain base tubular object data by segmenting the volume data. The processing circuitry is configured to obtain small tubular object data from the volume data. The processing circuitry is configured to generate updated base tubular object data, on the basis of the small tubular object data and the base tubular object data. The processing circuitry is configured to output the updated base tubular object data.

Abstract: A medical image processing apparatus of an embodiment includes processing circuitry. The processing circuitry receives a medical image of a target region. The processing circuitry generates an image pair including a local image having local features of the target region and a global image having global features of the target region on the basis of the received medical image. The processing circuitry performs segmentation and classification of the target region on the image pair by a neural network.

Abstract: A gas pressure regulator includes a valve body and a valve cover. The valve cover is covered on the valve body. The valve body is provided with a valve cavity, and the valve cavity is connected to an air inlet channel and an air outlet channel. The valve cavity includes a primary pressure regulating cavity and a secondary pressure regulating cavity, and the primary pressure regulating cavity and the secondary pressure regulating cavity are communicated with each other through a valve port. The primary pressure regulating cavity is communicated with the air inlet channel, and a valve core pressure regulating assembly is disposed between the primary pressure regulating cavity and the air inlet channel. The secondary pressure regulating cavity is communicated with the air outlet channel. A lever pressure regulating assembly is disposed between the valve port and the secondary pressure regulating cavity.

Abstract: A medical image processing apparatus according to an embodiment includes processing circuitry configured: to generate a projection image by implementing an intensity projection on a plurality of two-dimensional images structuring three-dimensional volume data rendering a tubular organ; to obtain a mapping matrix of the intensity projection; to annotate the tubular organ in the projection image; and to identify the tubular organ in the three-dimensional volume data, by inversely mapping the tubular organ annotated in the projection image onto the three-dimensional volume data while using the mapping matrix.

Abstract: A gas pressure regulator includes a valve body and a valve cover. The valve cover is covered on the valve body. The valve body is provided with a valve cavity, and the valve cavity is connected to an air inlet channel and an air outlet channel. The valve cavity includes a primary pressure regulating cavity and a secondary pressure regulating cavity, and the primary pressure regulating cavity and the secondary pressure regulating cavity are communicated with each other through a valve port. The primary pressure regulating cavity is communicated with the air inlet channel, and a valve core pressure regulating assembly is disposed between the primary pressure regulating cavity and the air inlet channel. The secondary pressure regulating cavity is communicated with the air outlet channel. A lever pressure regulating assembly is disposed between the valve port and the secondary pressure regulating cavity.

Abstract: A gas pressure regulating device is provided which comprises an upper housing and a lower housing, a pressure regulation cavity is disposed between the upper housing and the lower housing, a diaphragm assembly is disposed in the pressure regulation cavity, a gas inlet and a valve port for communicating the gas inlet with the pressure regulation cavity are disposed at one end of the lower housing. The gas pressure regulating device provided in the present invention has a simpler structure and fewer parts and is capable of effectively lowering the risks of dangerous accidents such as product leakage resulting from part failure, thus effectively ensuring stable pressure regulation performance.

Abstract: A device and a method are disclosed for collecting and culturing fish embryos and evaluating combined toxicity of thiamethoxam and tetraconazole. An embryo collection component and an embryo culture component are provided on a base plate. The embryo collection component includes a collection tray detachably connected to a bottom of a culture tube. The embryo culture component includes a cavity plate with a stopper inside and a top plate provided with a culture well. A bottom of the culture well is provided with a leakage hole; and after the top plate is installed into the cavity plate, the stopper occludes the leakage hole. The new device is used to carry out the combined toxicity effect test of thiamethoxam and tetraconazole on zebrafish embryos, which can be used to avoid development of pesticide mixtures that have a good preventive effect but pose increased toxicity risk to the ecological environment.

Abstract: A method for determining a summary of user-generated content. In an embodiment, the method includes: determining a plurality of sequentially arranged sentences included in user-generated content; then, determining a quality score of each sentence; and finally, determining a sentence group having the highest quality score as a summary of the user-generated content according to a constraint condition of a maximum summary character length and the quality score of each sentence, where sentences included in the sentence group are consecutive.

Abstract: A test method for the combined toxicity of chlorpyrifos and butachlor, which comprises the following steps: A. Experimental organisms: The zebrafish wild type AB strain is used in the experiment. After the purchase, it is domesticated in the laboratory, and the experimental fishes for collecting fish eggs have been kept in this laboratory for more than 1 month. Through the combined toxicity test and single pesticide test, it is convenient to increase the reference data and improve the mutual comparison of the data according to the impact of different environments and different agents on the animals. Better balance and offset the effects of irrelevant variables, making the experimental results more convincing. The probit analysis method is used to calculate the pesticides on larvae based on the number and the time of death of fish larvae, and the data is reasonably analyzed and processed to avoid reliance on single effect.

Abstract: The present invention provides a test method for toxicity of raw dinotefuran drug on early life stage of fish. The method includes: preparing a standard diluent, preparing test drug liquids, selecting a test organism, toxicant exposure of the embryos, toxicant exposure of larvae, monitoring and controlling test conditions, observation in the test, and statistically analyzing data and drawing results.

Abstract: A laser processing method for a sapphire includes: acquiring an image of the sapphire during processing; performing an edge detection to the image to acquire a coordinate of a crack; determining an offset parameter according to the coordinate of the crack; adjusting a laser processing position according to the offset parameter; and further processing the sapphire in accordance with the adjusted laser processing position.

Abstract: A method including: employing pure magnesium or a magnesium alloy as a substrate material, and sanding and cleaning the substrate material; preparing an electrolyte including 0.8-8 mmol/L of Zn2+, 30-50 mmol/L of Ca+, 15-35 mmol/L of H2PO4?, 0-0.5 mol/L of NaNO3, and 0-0.05 mmol/L of a magnesium ion complexing agent; employing the substrate material as a cathode, a graphite flake as an anode, heating the electrolyte to a temperature of between 60 and 90° C., and synchronously immersing the cathode and the anode into the electrolyte; and implementing an electrochemical deposition method in the electrolyte for between 20 and 60 min.

Abstract: The present invention relates to a laser lift-off method of wafer. The method includes the steps as follows: focusing laser in an inside for a wafer (10) to form a plurality of cracking points (19), the plurality of cracking points (19) are located on a separating surface (20); and exerting, under a temperature of ?400K to 0K, forces with opposite directions to opposite sides of the wafer (10), thereby dividing the wafer (10) into two pieces along the separating surface (20).