Abstract: Disclosed is a food preparation apparatus (100) comprising a food preparation chamber and a pressure chamber (120) for generating steam coupled to the food preparation chamber through a conduit (130), wherein the pressure chamber comprises a heating element (121) for converting water into steam; and the conduit comprises an auto-relief valve (140) arranged to release the steam at a set pressure above atmospheric pressure from the pressure chamber into the food preparation chamber, thereby creating superheated steam in the food preparation chamber by the rapid expansion of the released volume of the above atmospheric pressure (saturated) steam. A method (200) of preparing food in such a food preparation apparatus (100) is also disclosed.

Abstract: An ether-bridged dication is provided with two monovalent cations bonded via a carbon chain having ether group(s). The ether-bridged dication, monovalent cations, and anions are contained together within an ionic liquid electrolyte which is applied to a charge storage device. The ether-bridged dication, the ionic liquid electrolyte, and the charge storage device have operational abilities at room temperatures or below, and a reachable working potential of 3.5 V.

Abstract: Implementations of the present disclosure relate to methods, systems, and computer program products for security management. In one implementation, a computer-implemented method is disclosed. In the method, a message sequence associated with a user may be obtained from a list of historical messages that are logged in a data system. A candidate operation may be determined based on the obtained message sequence and an association model, where the association model indicates associations between message sequences and operations that are supported in the data system. A security level of the candidate operation may be evaluated based on at least one historical operation that has been performed by the user in the data system. In other implementations, a computer-implemented system and a computer program product for security management are disclosed.

Abstract: A computer implemented method for processing a plurality of medical indication conditions on a computer that includes a processor communicatively coupled to a memory includes obtaining a plurality of predetermined indication conditions which relate to a plurality of parameters, and forming a plurality of conditional segments based on respective values of the plurality of parameters defined in the plurality of predetermined indication conditions. Each conditional segment of the plurality of conditional segments corresponds to a combination of different value ranges of respective parameters of the plurality of parameters. The plurality of predetermined indication conditions includes a measurement item, a reference standard, a time period, a measurement condition, and a measurement manner.

Abstract: A method for establishing court information is provided. The method includes: establishing connection with an external smart ball; providing a prompt message indicating to move the external smart ball from a first characteristic spot of a court to a second characteristic spot of the court; obtaining sensing information from the external smart ball after providing the prompt message; calculating a movement trajectory of the external smart ball according to the sensing information; and obtaining a direction of a line connecting the first characteristic spot and the second characteristic spot in a geomagnetic coordinate. An electronic device and a non-transitory computer readable storage medium using the method are also provided.

Abstract: Embodiments of the present disclosure propose a display substrate, a method for manufacturing the same, and a display panel. In an embodiment, the display substrate includes a flexible substrate, the flexible substrate includes a bending region, the bending region has a first groove, wherein at least an inner wall of the first groove has a first flexible layer, at least one rib is provided on the first flexible layer at a bottom of the first groove, a wiring layer covers the rib on the first flexible layer, and the wiring layer has alternating protrusions and recessions, and an orthographic projection of the protrusions on the flexible substrate and an orthographic projection of the rib on the flexible substrate at least partially overlap.

Abstract: A camera optical lens is provided, including, from an object side to an image side in sequence: a first, second, third, fourth and fifth lens respectively having positive, negative, negative, positive and negative refractive power, which satisfies conditions: ?0.17?f1/f2??0.12; 1.80?d1/d2?2.20; 0.15?d6/d8?0.20; 8.00?(R3+R4)/(R3?R4)?10.00. f1 and f2 respectively denote focal length of the first and second lens; d1 denotes on-axis thickness of the first lens; d2, d6 and d8 respectively denote on-axis distance from image-side surface of the first lens to object-side surface of the second lens, from image-side surface of the third lens to object-side surface of the fourth lens and from image-side surface of the fourth lens to object-side surface of the fifth lens; R3 and R4 respectively denote curvature radius of object-side surface and image-side surface of the second lens. The camera optical lens can satisfy design requirement of large aperture, wide-angle and ultra-thinness while having good optical functions.

Abstract: A method and system of processing graph query are provided. A graph query is received by a relational database graph module. The graph query is translated into one or more relational database queries. One or more relational database queries are translated to be performed on data stored within a relational database. One or more results from the relational database are received based on the sent one or more relational database queries. A synergistic graph is generated on a display, based on the received one or more results.

Abstract: The present invention provides a camera optical lens including, from an object side to an image side, a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power, a sixth lens having a negative refractive power, a seventh lens having a positive refractive power and a eighth lens having a negative refractive power. The camera optical lens satisfies the following conditions: 0.65?f1/f?0.85, 2.00?f4/f?5.00, and ?5.50?f5/f??2.50; where f, f1, f4 and f5 respectively denote a focal length of the camera optical lens, the first lens, the fourth lens and the fifth lens. The camera optical lens in the present disclosure has characteristics of large aperture, wide angle and ultra-thinness while having good optical functions.

Abstract: The present invention provides a camera optical lens including, from an object side to an image side, a first lens, a second lens, a third lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and a eighth lens. The first, third, fifth and seventh lens have positive refractive power, while the second, fourth, sixth and eighth lens have negative refractive power. The camera optical lens satisfies the following conditions: 0.70?f1/f?1.00; ?20.00?f4/f?3.50; and 2.30?f5/f?4.50; where f denotes a focal length of the camera optical lens, and f1, f4 and f5 respectively denote a focal length of the first lens, the fourth lens and the fifth lens. The camera optical lens in the present disclosure satisfies a design requirement of large aperture, wide angle and ultra-thinness while having good optical functions.

Abstract: A camera optical lens is provided, including five lenses, which satisfies the following conditions: 0.60?(R3+R4)/(R3?R4)?0.7; ?5.00?(R5+R6)/(R5?R6)??4.20; 1.10?d8/d9?1.20; and 0.85?(R9+R10)/(R9?R10)?0.89; where R3 denotes a curvature radius of an object-side surface of the second lens; R4 denotes a curvature radius of an image-side surface of the second lens; R5 denotes a curvature radius of an object-side surface of the third lens; R6 denotes a curvature radius of an image-side surface of the third lens; R9 denotes a curvature radius of an object-side surface of the fifth lens; R10 denotes a curvature radius of an image-side surface of the fifth lens; d8 denotes an on-axis distance from an image-side surface of the fourth lens to an object-side surface of the fifth lens; d9 denotes an on-axis thickness of the fifth lens. The camera optical lens satisfies a design requirement of a large aperture, ultra-thinness and a wide angle while having good optical functions.

Abstract: Provided is a camera optical lens including, sequentially from an object side to an image side: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens having a positive refractive power; a fifth lens having a negative refractive power; a sixth lens having a positive refractive power; and a seventh lens having a negative refractive power. The camera optical lens satisfies following conditions: 0.85?f1/f?1.00; 1.50?f3/f2?5.00; and 3.00?R7/d7?7.00. The camera optical lens can achieve high optical performance while satisfying design requirements for ultra-thin, wide-angle lenses having large apertures.

Abstract: Provided is a camera optical lens including, sequentially from an object side to an image side: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a negative refractive power; a fifth lens having a positive refractive power; a sixth lens having a positive refractive power; and a seventh lens having a negative refractive power. The camera optical lens satisfies following conditions: 3.00??1/?2?4.30; ?5.00?f2/f??2.00; and 2.50?(R9+R10)/(R9?R10)?15.00. The camera optical lens can achieve high optical performance while satisfying design requirements for ultra-thin, wide-angle lenses having large apertures.

Abstract: Provided is a camera optical lens including, sequentially from an object side to an image side, first to fifth lenses. The camera optical lens satisfies: ?8.00?(f1+f3+f5)/f??6.00; 1.00?(R7+R8)/(R7?R8)?3.00; R5/d5??15.00; 10.00?d7/d8?13.02; and 0.80?f4/f?1.50, where f denotes a focal length of the camera optical lens; f1, f3, f4 and f5 denote focal lengths of the first, third, fourth and fifth lenses, respectively; R5 denotes a curvature radius of an object side surface of the third lens; R7 and R8 denote curvature radiuses of object side and image side surfaces of the fourth lens, respectively; d5 and d7 denote on-axis thicknesses of the third and fourth lenses, respectively; and d8 denotes an on-axis distance from the image side surface of the fourth lens to an object side surface of the fifth lens. The camera optical lens can achieve high optical performance while satisfying design requirements for ultra-thin, wide-angle lenses having large apertures.

Abstract: The invention relates generally to methods for preparing recombinant nucleosomes. In particular, the invention relates to methods for ligating a histone peptide onto a fully assembled recombinant nucleosome.

Abstract: The present disclosure provides a low temperature resistant oil casing having high strength and high toughness, and the manufacturing method thereof, the chemical composition of the oil casing by mass of: C: 0.08-0.14%, Si: 0.1-0.4%, Mn: 0.6-1.3%, Cr: 0.5-1.5%, Mo: 0.2-0.5%, Ni: 0.2-0.5%, Nb: 0.02-0.05%, V: 0-0.1%, Al: 0.01-0.05%, Ca: 0.0005-0.005%, and the balance being Fe and unavoidable impurities. The method of manufacturing the oil casing includes: (1) smelting and continuous casting; (2) perforating and continuous rolling; (3) heat treatment, wherein an austenitizing temperature is controlled in the range of 900-930° C., and held for 30-60 min, followed by quenching, subsequently, tempering at temperature of 480-600° C., holding the temperature for 50-80 min; (4) hot sizing.

Abstract: A digital encoder with a screen includes a key body, and a display assembly is configured inside the key body. The display assembly includes a display carrier assembly, display element configured on the display carrier assembly and display circuit element configured in the display carrier assembly, where one side of the display assembly is in connection with a rotating assembly movably configured on a carrier housing, and a rotary encoder sensor and pressing element are configured between the rotating assembly and carrier housing, thereby allowing the assembly of the key body to be more convenient through modulization structures, and allowing the key body to have multiple functions of display, press and rotation at the same time to increase use convenience.

Abstract: The invention relates to the use of recombinant/semi-synthetic nucleosomes carrying histone and/or DNA modifications as a reference standard for quantification of covalently modified (on the histone proteins or wrapping DNA), variant, or mutant nucleosomes (collectively “modified nucleosomes” or “nucleosome modifications”) from a biological sample. The invention further relates to methods of using the assay to accurately quantify single or combinatorial nucleosome modifications as biomarkers of disease.

Abstract: The present disclosure discloses a camera optical lens. The camera optical lens includes, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The camera optical lens further satisfies following conditions: ?10.00f1/f3?1.00; 3.50R5/R620.00; where f3 denotes a focal length of the third lens; f1 denotes a focal length of the first lens; R5 denotes a curvature radius of an object side surface of the third lens; and R6 denotes a curvature radius of an image side surface of the third lens. The camera optical lens can achieve a high performance while obtaining a low TTL.

Abstract: The present disclosure relates to the technical field of optical lens and discloses a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The camera optical lens satisfies following conditions: 1.00?f1/f?1.50, 1.70?n5?2.20, ?2.00?f3/f4?2.00; 0.50?(R13+R14)/(R13?R14)?10.00; 1.70?n7?2.20, where f1 denotes a focal length of the first lens; f denotes a focal length of the camera optical lens; n5 denotes a refractive index of the fifth lens; f3 denotes a focal length of the third lens; f4 denotes a focal length of the fourth lens; R13 denotes a curvature radius of the object-side surface of the seventh lens; R14 denotes a curvature radius of the image-side surface of the seventh lens; n7 denotes a refractive index of the seventh lens. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.