Abstract: Techniques are disclosed that relate to predicting whether a computer-based interaction is being performed by a computer bot. A computer system may receive information describing exhibited user-presence indicators of different types that are associated with the computer-based interaction, including user-presence indicators indicative of whether the computer-based interaction is being performed by a computer bot. The computer system performs a first embedding operation to create a unified embedding that unifies the exhibited user-presence indicators into a single embedding that is representative of an aggregation of the exhibited user-presence indicators. The computer system performs a second embedding operation to create a difference embedding that is representative of a set of differences between expected user-presence indicators for the computer-based interaction and the exhibited user-presence indicators.

Abstract: Methods and systems are presented for bot detection. A movement of a pointing device is tracked via a graphical user interface (GUI) of an application executable at a user device. Movement data associated with different locations of the pointing device within the GUI is obtained. The movement data is mapped to functional areas corresponding to a range of the different locations of the pointing device within the GUI over consecutive time intervals. At least one vector representing a sequence of movements for at least one trajectory of the pointing device through one or more of the functional areas and a duration the pointing device stays within each functional area is generated. At least one trained machine learning model is used to determine whether the sequence of movements of the pointing device was produced through human interaction with the pointing device by an actual user of the user device.

Abstract: Provided are a Pantoea agglomerans (P. agglomerans) strain FL1 and use thereof in improving dough processing characteristics, which belong to the technical field of food fermentation. The P. agglomerans strain FL1 was deposited on May 4, 2023, with a deposit number of CGMCC NO. 27248. Compared with that made using only common yeast, the dough made by co-fermentation of the P. agglomerans strain FL1 and yeast exhibits a more robust gluten protein network structure, increased resisillence during kneading, and reduced hardness, and results in bread with a larger volume and softer texture.

Abstract: The present disclosure provides a Flammulina velutipes proteoglycan (FPG) and a dual-wavelength screening method and use thereof, and relates to the technical field of biomedicine. In the present disclosure, components such as polysaccharides, proteoglycan (PG), and free proteins in the Flammulina velutipes are extracted through water extraction. The free proteins are removed by protein removal, and the polysaccharides and PG are separated by alcohol precipitation. Sepharose FF ion exchange chromatography and Sephadex G-200 chromatography separation are conducted with water as an eluent. Dual-wavelength detection is conducted to collect an eluate with absorption peaks at both 480 nm and 295 nm wavelengths, such that a component—the FPG, which has a protein structure and a polysaccharide structure, is retained.

Abstract: A qualitative and quantitative detection primer set, a kit and a detection method for scented rice are provided. The scented rice and non-scented rice are qualitatively analyzed by fluorescence quantitative polymerase chain reaction (PCR), and the scented rice with different adulteration ratios is calculated by a 2-??CT method, so that the scented rice and the non-scented rice of different varieties can be accurately identified. Primers are designed for specific fragments of the scented rice and the non-scented rice respectively based on the principle of amplification-refractory mutation system (ARMS)-PCR, and qualitative identification of the scented rice can be achieved by agarose gel electrophoresis or fluorescence quantitative PCR according to different laboratory conditions. Combined with internal reference primers for the calculation of gene level by fluorescence quantitative PCR method of scented rice and/or non-scented rice can achieve the adulteration detection of the scented rice quantitatively.

Abstract: Methods and systems are presented for bot detection. A movement of a pointing device is tracked via a graphical user interface (GUI) of an application executable at a user device. Movement data associated with different locations of the pointing device within the GUI is obtained. The movement data is mapped to functional areas corresponding to a range of the different locations of the pointing device within the GUI over consecutive time intervals. At least one vector representing a sequence of movements for at least one trajectory of the pointing device through one or more of the functional areas and a duration the pointing device stays within each functional area is generated. At least one trained machine learning model is used to determine whether the sequence of movements of the pointing device was produced through human interaction with the pointing device by an actual user of the user device.

Abstract: A device for measuring liquid sloshing force of a ship transporting liquid. The device includes a first cuboidal frame; a second cuboidal frame; a rotating mechanism; a dynamometer; and a liquid tank disposed in the second cuboidal frame. The second cuboidal frame is pivotally connected to the first cuboidal frame via the rotating mechanism. The first cuboidal frame includes a first horizontal plane frame, a second horizontal plane frame, a plurality of upright tubes connecting the first horizontal plane frame and the second horizontal plane frame, and an X-shaped support rod disposed between the first horizontal plane frame and the second horizontal plane frame. The second cuboidal frame includes a third horizontal plane frame including two longitudinal beams and two transverse beams, a longitudinal U-shaped bar disposed between the two transverse beams, and a plurality of transverse U-shaped bars disposed between the two longitudinal beams.

Abstract: The present invention relates to a method for precisely determining protein content in edible fungus, belonging to the technical field of food detection. The method is as follows: determining total nitrogen content in an edible fungus sample by using a Kjeldahl method; additionally taking an equal amount of sample, and washing same with acid and alkali solutions to obtain chitin residues; then determining nitrogen content in the chitin residues by using the Kjeldahl method; subtracting the nitrogen content in the chitin residues from the total nitrogen content in the sample, so as to eliminate the interference of the nitrogen content in chitin; and finally obtaining precise protein content by calculation based on a formula. The present invention provides a method for precisely determining protein content in edible fungus, and provides a method for the precise assessment of the nutrient composition and value of protein in the edible fungus.

Abstract: A device for measuring liquid sloshing force of a ship transporting liquid. The device includes a first cuboidal frame; a second cuboidal frame; a rotating mechanism; a dynamometer; and a liquid tank disposed in the second cuboidal frame. The second cuboidal frame is pivotally connected to the first cuboidal frame via the rotating mechanism. The first cuboidal frame includes a first horizontal plane frame, a second horizontal plane frame, a plurality of upright tubes connecting the first horizontal plane frame and the second horizontal plane frame, and an X-shaped support rod disposed between the first horizontal plane frame and the second horizontal plane frame.

Abstract: The present invention provides a method for promoting the growth and preservation quality of Agaricus bisporus, and belongs to the technical field of cultivation and preservation of edible fungi. In the present invention, the methyl jasmonate solution is sprayed onto the surface of Agaricus bisporus at a concentration of 10-200 ?mol/L when the Agaricus bisporus grows to the mushroom bud stage, which can accelerate the growth and development of the Agaricus bisporus, improve the post-harvest preservation quality of the Agaricus bisporus, and prolong the shelf life thereof, then improving the yield and commercial value of the Agaricus bisporus. The present invention provides a new method for increase in both production and income and post-harvest preservation of Agaricus bisporus, can be applied to large-scale industrial production of Agaricus bisporus, and has important economic benefits and application promotion value.

Abstract: The present invention provides a method for promoting the growth and preservation quality of Agaricus bisporus, and belongs to the technical field of cultivation and preservation of edible fungi. In the present invention, the methyl jasmonate solution is sprayed onto the surface of Agaricus bisporus at a concentration of 10-200 ?mol/L when the Agaricus bisporus grows to the mushroom bud stage, which can accelerate the growth and development of the Agaricus bisporus, improve the post-harvest preservation quality of the Agaricus bisporus, and prolong the shelf life thereof, thereby improving the yield and commercial value of the Agaricus bisporus. The present invention provides a new method for increase in both production and income and post-harvest preservation of Agaricus bisporus, can be applied to large-scale industrial production of Agaricus bisporus, and thus has important economic benefits and application promotion value.

Abstract: The present invention relates to a method for precisely determining protein content in edible fungus, belonging to the technical field of food detection. The method is as follows: determining total nitrogen content in an edible fungus sample by using a Kjeldahl method; additionally taking an equal amount of sample, and washing same with acid and alkali solutions to obtain chitin residues; then determining nitrogen content in the chitin residues by using the Kjeldahl method; subtracting the nitrogen content in the chitin residues from the total nitrogen content in the sample, so as to eliminate the interference of the nitrogen content in chitin; and finally obtaining precise protein content by calculation based on a formula. The present invention provides a method for precisely determining protein content in edible fungus, and provides a method for the precise assessment of the nutrient composition and value of protein in the edible fungus.

Abstract: In one aspect, the present disclosure relates to a substantially albumin-free, chemically defined medium for efficiently supporting stem cell differentiation with significantly improved reproducibility and long-term culture of the differentiated cells. In particular embodiments, provided herein are compositions and methods for promoting atrial and ventricular cardiomyocytes formation from stem cells. The present disclosure further relates to the atrial and ventricular cardiomyocytes formed from the stem cells, and the uses of the cardiomyocytes, e.g., for cardiac injury repairmen, cardiac safety evaluation during drug discovery, and screening for new therapeutics for treating cardiac injuries.

Abstract: A testing device for a model of a floating gate, the device including: a towing carriage including a platform and a moon pool; a square support mechanism including two upper transversal beams, two upper longitudinal beams, two I-shaped longitudinal beams, four lower beams, and straight plates disposed on two of the four lower beams; a dynamometric mechanism including a longitudinal tensiometer, a transversal tensiometer, and a signal transmitting terminal; a data acquisition mechanism including a computer and a signal receiving terminal; a casing mechanism including two stepped shafts and two rolling wheels; and a guide rod mechanism including an inner sleeve, an outer sleeve, and a connecting plate. One end of the connecting plate is connected to the lower end of the inner sleeve, and the other end thereof is connected to a deck of the floating gate.

Abstract: A wave power generation device, including a power generation assembly, a mooring system, a floating platform, floating towers, control cabins, a connecting member, and anti-sway plates. The floating platform is a square floating box. The power generation assembly includes a swing plate, a hydraulic cylinder, an energy accumulator, a hydraulic motor, a generator, a battery, and a power generation and distribution device. The floating platform includes a main deck. The main deck includes a manhole and a support for supporting the swing plate. The swing plate is connected to the support via a first hinge. One end of the hydraulic cylinder is connected to the swing plate, and another end of the hydraulic cylinder is connected to a floating platform. The mooring system includes four anchor windlasses. A method for operating and maintaining the wave power generation device is also provided.

Abstract: A wave power generation device, including a power generation assembly, a mooring system, a floating platform, floating towers, control cabins, a connecting member, and anti-sway plates. The floating platform is a square floating box. The power generation assembly includes a swing plate, a hydraulic cylinder, an energy accumulator, a hydraulic motor, a generator, a battery, and a power generation and distribution device. The floating platform includes a main deck. The main deck includes a manhole and a support for supporting the swing plate. The swing plate is connected to the support via a first hinge. One end of the hydraulic cylinder is connected to the swing plate, and another end of the hydraulic cylinder is connected to a floating platform. The mooring system includes four anchor windlasses. A method for operating and maintaining the wave power generation device is also provided.

Abstract: Waveform data contains waveform signals having transition events and is subdivided into data blocks. Indexing elements are provided for each waveform signal that correspond to a time range of the waveform data, and have a pointer to a data block within which transition events for the waveform signal are stored. Each indexing element has a maximum interval value that indicates the maximum amount of time spanned between transition events of the waveform signal. A minimum time resolution that may be adequately resolved on the display is computed. For indexing elements having maximum interval values that exceed the minimum time resolution, the pointers of the indexing elements are used to access and draw transition events for the waveform signals. For indexing elements having maximum interval values that are less than the minimum time resolution, a predetermined image in place of transition events for the waveform signals is drawn.

Abstract: Waveform data contains waveform signals having transition events and is subdivided into data blocks. Indexing elements are provided for each waveform signal that correspond to a time range of the waveform data, and have a pointer to a data block within which transition events for the waveform signal are stored. Each indexing element has a maximum interval value that indicates the maximum amount of time spanned between transition events of the waveform signal. A minimum time resolution that may be adequately resolved on the display is computed. For indexing elements having maximum interval values that exceed the minimum time resolution, the pointers of the indexing elements are used to access and draw transition events for the waveform signals. For indexing elements having maximum interval values that are less than the minimum time resolution, a predetermined image in place of transition events for the waveform signals is drawn.