Abstract: A volume liquid fixed-ratio multi-batch mixing valve includes a valve body, including a first inlet liquid chamber, a second inlet liquid chamber and a mixing chamber; a first valve core, controlling liquid inflow into the first inlet liquid chamber; a second valve core, controlling liquid inflow into the second inlet liquid chamber; a liquid drainage valve core, controlling liquid drainage; a rotary shaft includes a first impeller and a second impeller. The first impeller and the second impeller alternately control flow to the first inlet liquid chamber and the second inlet liquid chamber and to the second inlet liquid chamber and the mixing chamber. The first impeller and the second impeller are symmetrically about the rotary shaft; when the first inlet liquid chamber and the second inlet liquid chamber are communicated, the second valve core closes the second inlet liquid chamber and the mixing chamber.

Abstract: A magnetic attraction incubation mechanism of an automatic molecular diagnostic instrument, includes: a magnetic attraction assembly used for magnetic attraction of a reaction chamber containing a sample liquid and an incubation assembly used for heating the reaction chamber, and further comprising: a driving device for driving the incubation assembly and the magnetic attraction assembly to be alternately close to the reaction chamber, the magnetic attraction assembly and the incubation assembly being both connected to the driving device. Switching of an incubation operation and a magnetic attraction operation can be achieved, and an incubation part and a magnetic attraction part effectively work in conjunction with each other by means of a linkage mechanism, so that the overall structure is effectively simplified, the space is saved, and a detection speed of the sample liquid can further be increased.

Abstract: A connector for a case shell of a power apparatus includes a main body member. Two ends of the main body member are respectively connected to different members of the case shell, and the main body member is deformable; and the main body member is used to deform when an explosion occurs inside the case shell and the different members of the case shell connected by means of the main body member are disengaged from each other. The main body member of the connector can deform when devices inside the case shell explode and the different members of the case shell connected by means of the main body member are disengaged from each other, such that two members of the case shell connected by means of the main body member are slightly disengaged from each other to form a gap.

Abstract: A DNA and RNA nucleic acid co-extraction and detection system includes a nucleic acid extraction system, a sealing, transferring and mixing system, a nucleic acid detection system and a control system, wherein the nucleic acid extraction system, the sealing, transferring and mixing system and the nucleic acid detection system are all connected to the control system; the nucleic acid extraction system comprises a carry basket for loading an extraction reagent strip and a sample tube, a consumable-material supply module, a reagent kit loading module, a barcode scanning device for automatically inputting barcode information, a magnetic absorption incubation device, and an automatic sample addition device for transferring a liquid to a reaction chamber of the extraction reagent strip or a PCR tube and sealing the PCR tube; the sealing and transferring system comprises a PCR transferring device for grabbing and driving a PCR tube to move, and a high-speed mixing device.

Abstract: This application provides an interaction method, apparatus, device and medium. The method includes: displaying information of material or materials used in a virtual scene in response to a viewing instruction of a first user for the virtual scene; and displaying a detail page of a target material in response to a first operation on information of the target material used in the virtual scene.

Abstract: The present application is directed to a supported rare earth-catalyst. This catalyst comprises a metal oxide support having Brønsted acid sites and a rare earth element-catalyst. The rare earth element-catalyst is bound to the Brønsted acid sites on the metal oxide support. The present application is also directed to methods of making supported rare earth-catalyst and methods for borylation of hydrocarbons using the supported rare earth-catalyst.

Abstract: A basket includes a cover plate, a support assembly, a basket bottom plate for holding at least two rows of reagent strips, and a sample holder for holding at least two sample tubes; the sample holder is detachably connected to an end surface of the basket bottom plate; the cover plate and the basket bottom plate are rotatably connected so as to limit displacement of the reagent strips in the height direction when the cover plate and the basket bottom plate are attached to each other; the support assembly is connected to the bottom surface of the basket bottom plate, and the height of the support assembly is greater than or equal to the heights of the reagent strips.

Abstract: The present disclosure provides a recombinant Bacillus subtilis for increasing the yield of menaquinone 7 (MK-7) and application thereof, and belongs to the field of genetic engineering. In the present disclosure, 14 recombinant strains BS1-BS14 are constructed through the modification of genes related to the biosynthetic pathway of MK-7 on a chromosome of Bacillus subtilis, wherein BS6-BS14 significantly increase the yield of the MK-7, reaching up to 33.5 mg/L, which is 3.53 times the yield of the original strain of wild-type Bacillus subtilis 168. The present disclosure further provides a method for modifying the MK-7 biosynthetic pathway in microorganisms to increase the yield of the MK-7, providing a theoretical basis for constructing a high-yielding strain of the MK-7.

Abstract: The present invention provides tricyclic fused thiophene derivatives, as well as their compositions and methods of use, that modulate the activity of Janus kinase (JAK) and are useful in the treatment of diseases related to the activity of JAK including, for example, inflammatory disorders, autoimmune disorders, cancer, and other diseases.

Abstract: A 2-bit high-power amplifying non-reciprocal reflective metasurface is provided. The metasurface comprises a plurality of metasurface units distributed in an array; each metasurface unit comprises a first metal layer, an intermediate layer, and a second metal layer which are sequentially stacked; the second metal layer comprises a receiving metal patch and a transmitting metal patch; two diodes are both positioned on a longitudinal central axis of the receiving metal patch; orientation of the slot on the transmitting metal patch is orthogonal to orientation of the slot on the receiving metal patch; the first metal layer comprises a phase shifter, which comprises first series diodes and second series diodes forming a reconfigurable 90-degree phase-shift circuit.

Abstract: A method and apparatus for determining holding parameters, an electronic device and a computer medium are provided. The method includes displaying a holdable object, and a calibration object for a first user to calibrate a holding position of the holdable object; and in response to a determination instruction of the first user to determine the holding parameters of the holdable object, determining position holding parameters of the holdable object according to a first position of the holdable object and a second position of the calibration object.

Abstract: The present application provides an end cap assembly, a battery cell, a battery module, a battery, an electrical device, and a manufacturing method for the end cap assembly. The end cap assembly is applied to the battery cell and includes: an end cap sheet, electrode columns, and adapter sheets; the end cap sheet is provided with electrode through holes; the electrode columns are configured for inputting or outputting electric energy of the battery cell, the electrode columns cover the electrode through holes, each electrode column is provided with a first concave portion recessed towards an interior of the battery cell; and each of the adapter sheets is provided with a second concave portion matching with the first concave portion, and configured for electrically connecting the electrode columns with an electrolytic cell or a galvanic cell inside the battery cell.

Abstract: Provided are a chair frame and a chair. The chair frame supports a human waist and back by using a waist support assembly and supports human legs and feet by using a footstool assembly. Meanwhile, when the waist support assembly is unfolded, driven by a second support rod, a second end of a first support rod can swing toward the footstool assembly with a junction between a first end of the first support rod and the second support rod as a rotation center to increase an included angle between a waist support bracket and a seat cushion bracket, that is, increasing an unfolded angle of a backrest and achieving the zero gravity effect. The chair can improve the chair comfort by applying the preceding chair frame.

Abstract: The present invention provides heterocyclylamine derivatives of Formula I: wherein the variables are defined herein, that modulate the activity of phosphoinositide 3-kinases (PI3Ks) and are useful in the treatment of diseases related to the activity of PI3Ks including, for example, inflammatory disorders, immune-based disorders, cancer, and other diseases.

Abstract: An apparatus includes a body, a detection member, one or more processors, and one or more memories. The body is configured to carry a payload and is in one of a plurality of different states. The plurality of different states include a folded state and an unfolded state. The first detection member is mounted at the body and includes a magnetic sensor. The one or more memories store one or more computer programs that, when executed by the one or more processors, cause the one or more processors to obtain detection information collected by the first detection member and control the apparatus to be in a standby mode or an operation mode according to the first detection information. The detection information is related to the folded state or the unfolded state of the body.

Abstract: A traffic lane line fitting method includes: obtaining map information for a current position of a vehicle, the map information comprising a number of traffic lanes, a road width and line point information of traffic lane lines on both sides of the vehicle; determining, from among the traffic lane lines on both sides of the vehicle, a traffic lane line on one side, consistent with the direction indicated by at least one of the following, to be a traffic lane line offset reference used for traffic lane line fitting; offsetting and generating a plurality of traffic lane lines of the vehicle on the basis of the traffic lane line offset reference; performing curve fitting on a set of line points on the generated plurality of traffic lane lines so as to obtain a corresponding traffic lane line equation.

Abstract: This application relates to derivatives of Formula I: and pharmaceutically acceptable salts thereof, which are inhibitors of PI3K, and compositions and methods of treatment related thereto.

Abstract: A battery module, a battery pack, a device using a battery module as a power source, and a method of manufacturing a battery module are provided. The battery module includes: at least two battery cells; a connecting piece configured to electrically connect two battery cells of at least two battery cells; and a protective layer including a first protective portion configured to cover the connecting piece. A melting point of the first protective portion is greater than that of the connecting piece.

Abstract: The present disclosure discloses an optical imaging lens group including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens, each of which has refractive power. Each of the first lens and the fourth lens has positive refractive power. The eighth lens has negative refractive power. An object-side surface of the third lens is a convex surface, and an image-side surface thereof is a concave surface. An object-side surface of the fourth lens is a concave surface, and an image-side surface thereof is a convex surface. A total effective focal length f of the optical imaging lens group, an effective focal length f2 of the second lens, and an effective focal length f3 of the third lens satisfy |f/f2|+|f/f3|<1.

Abstract: Provided are an adjustable bracket and a high-feet sofa. In the adjustable bracket, the transmission rod is in a straight rod structure. A first end of the transmission rod is connected to the fourth connection rod. A second end of the transmission rod is connected to the pedal rod group. The present disclosure provides an adjustable bracket. In the case of the same sitting height, the adjustable mechanism of a sofa has a more compact structure so that the cleaning work of a mop, a vacuum cleaner, or a floor-sweeping robot is facilitated. Moreover, the height of the sofa from the ground is higher, making the sofa more attractive.