Abstract: A high temperature and high salinity-resistant complementarily rigid-flexible plugging agent, a method for preparing the same, and a water-based drilling fluid and a use thereof.

Abstract: A chiller includes an evaporator, a compressor including a prime mover, a first pressure sensor that detects a first pressure in the evaporator, a second pressure sensor that detects a second pressure in a condenser, and a controller. The controller determines a predicted energy level of the compressor based on the first pressure and the second pressure, the predicted energy level associated with liquid droplet flow into the compressor, compares the predicted energy level to an operating energy level, and modifies the at least one of the input power and the input current to the prime mover based on the comparison satisfying a modification condition.

Abstract: The disclosure discloses a fatty acid synthase inhibitor and application thereof and belongs to the technical field of medical biology. The fatty acid synthase inhibitor of the disclosure can significantly inhibit the activity of fatty acid synthase without affecting normal expression, and adjust the ratio of fatty acids in cells. The fatty acid synthase inhibitor of the disclosure has a good tumor proliferation inhibitory effect, can arrest the growth cycle of tumor cells in the interphase, prevent tumor cell division, inhibit tumor cell proliferation, promote tumor cell apoptosis and exert a tumor treatment effect, can be used to treat tumors and metabolism related diseases, and has an important clinical application prospect.

Abstract: The bonding composition comprises 70-85 wt % of thermoplastic polyurethane (TPU) with a melting point of 60-130° C., 6-10 wt % of compounded phosphorus-nitrogen flame retardant, 2-5 wt % of nano rare-earth oxide, 1-3 wt % of antibacterial agent, and 6-12 wt % of tackifier.

Abstract: A chiller includes an evaporator, a compressor including a prime mover, a first pressure sensor that detects a first pressure in the evaporator, a second pressure sensor that detects a second pressure in a condenser, and a controller. The controller determines a predicted energy level of the compressor based on the first pressure and the second pressure, the predicted energy level associated with liquid droplet flow into the compressor, compares the predicted energy level to an operating energy level, and modifies the at least one of the input power and the input current to the prime mover based on the comparison satisfying a modification condition.

Abstract: A falling film evaporator (100), a housing (101) thereof being accommodated with a heat exchange tube (304), a perforated plate (205) and a spraying tube (202), the perforated plate (205) being provided between the spraying tube (202) and the heat exchange tube (304), such that refrigerant sprayed from the spraying tube (202) is sprayed onto the surface of the heat exchange tube (304) by means of distribution of the perforated plate (205); spraying openings (301) on the spraying tube (202) have a strip shape, and the extension direction of the openings is perpendicular to the length direction of the spraying tube (202).

Abstract: A chiller includes an evaporator, a compressor including a prime mover, a first pressure sensor that detects a first pressure in the evaporator, a second pressure sensor that detects a second pressure in a condenser, and a controller. The controller determines a predicted energy level of the compressor based on the first pressure and the second pressure, the predicted energy level associated with liquid droplet flow into the compressor, compares the predicted energy level to an operating energy level, and modifies the at least one of the input power and the input current to the prime mover based on the comparison satisfying a modification condition.

Abstract: A robot for straightening double thin-wall section pipe with undesirably shaped cavities, includes two racks, a positioning component, a shaping component and a driving component. In operation, the double thin-wall section pipe is put in the positioning component, and the shaping component is used for shaping the pipe by the driving of the driving component. The robot improves the working efficiency, and is not only compact in structure design, stable in movement, precise in positioning and reliable in locking, but also convenient for disassembly and maintenance.

Abstract: The embodiments is an unmanned aerial vehicle. The unmanned aerial vehicle includes: an airframe; and a fixed-wing assembly and a rotor assembly, both replaceably connected to the airframe. The fixed-wing assembly is connected to the airframe to form a vertical take-off and landing fixed-wing unmanned aerial vehicle and the rotor assembly is connected to the airframe to form a multi-rotor unmanned aerial vehicle, thereby implementing an unmanned aerial vehicle that can switch between the vertical take-off and landing fixed-wing unmanned aerial vehicle and the multi-rotor unmanned aerial vehicle.

Abstract: The embodiment is an unmanned aerial vehicle. The unmanned aerial vehicle includes: an airframe, including first mounting portions, where the first mounting portion includes a first mounting body and connecting rods formed on the first mounting body, the connecting rods extending in a pitch axis direction; and a power assembly, including a first assembling body and eccentric wheels mounted on the first assembling body, where the eccentric wheel is rotatable between a first rotation position and a second rotation position of the first assembling body around a rotation axis of the first assembling body, the rotation axis being perpendicular to the pitch axis direction.

Abstract: A falling film evaporator (100), a housing (101) thereof being accommodated with a heat exchange tube (304), a perforated plate (205) and a spraying tube (202), the perforated plate (205) being provided between the spraying tube (202) and the heat exchange tube (304), such that refrigerant sprayed from the spraying tube (202) is sprayed onto the surface of the heat exchange tube (304) by means of distribution of the perforated plate (205); spraying openings (301) on the spraying tube (202) have a strip shape, and the extension direction of the openings is perpendicular to the length direction of the spraying tube (202).

Abstract: A chiller includes an evaporator, a compressor including a prime mover, a first pressure sensor that detects a first pressure in the evaporator, a second pressure sensor that detects a second pressure in a condenser, and a controller. The controller determines a predicted energy level of the compressor based on the first pressure and the second pressure, the predicted energy level associated with liquid droplet flow into the compressor, compares the predicted energy level to an operating energy level, and modifies the at least one of the input power and the input current to the prime mover based on the comparison satisfying a modification condition.

Abstract: The present disclosure is directed encoding LIDAR point cloud data. In particular, a computing system can receive point cloud data for a three-dimensional space. The computing system can generate a tree-based data structure from the point cloud data, the tree-based data structure comprising a plurality of nodes. The computing system can generate a serial representation of the tree-based data structure. The computing system can, for each respective node represented by a symbol in the serial representation: determine contextual information for the respective node, generate, using the contextual information as input to a machine-learned model, a statistical distribution associated with the respective node, and generate a compressed representation of the symbol associated with the respective node by encoding the symbol using the statistical distribution for the respective node.

Abstract: A robot for straightening double thin-wall section pipe with multi-cavity special-shaped, includes two racks, a positioning component, a shaping component and a driving component. The double thin-wall section pipe is located in the positioning component, and the shaping component is used for shaping the pipe by the driving of the driving component. The robot improves the working efficiency, and is not only compact in structure design, stable in movement, precise in positioning and reliable in locking, but also convenient for disassembly and maintenance.

Abstract: A condenser includes a shell having a vapor refrigerant inlet, a first tube bundle and a liquid refrigerant outlet. A second tube bundle is positioned in a subcooler component. The subcooler component has a center channel and at least two outer channels and conforms to the shell.

Abstract: A condenser includes a shell having a vapor refrigerant inlet, a first tube bundle and a liquid refrigerant outlet. A second tube bundle is positioned in a subcooler component. The subcooler component has a center channel and at least two outer channels and conforms to the shell.

Abstract: A condenser includes a shell having a vapor refrigerant inlet, a first tube bundle and a liquid refrigerant outlet. A second tube bundle is positioned in a subcooler component. The subcooler component has a center channel and at least two outer channels and conforms to the shell.

Abstract: The present disclosure provides a preparation method of a porous composite separator, which comprises steps of: (1) a forming process of a porous separator substrate: taking organic particles as a raw material to obtain a porous separator substrate; (2) a coating process of a functional material layer: coating a functional material layer on at least one surface of the obtained porous separator substrate to obtain a porous separator substrate having a functional material layer; (3) a heat treating process: drying the functional material layer and heating the porous separator substrate and the functional material layer on the surface of the obtained porous separator substrate to obtain a porous composite separator. The preparation method can prepare a porous composite separator with an excellent performance in high efficiency and low cost, the porous composite separator has high porosity, high air permeability, high binding performance, high mechanical strength and high thermal stability.

Abstract: The invention relates to the field of polynucleotide amplification. More particularly, the invention provides methods, compositions and kits for amplification of (i.e., making multiple copies of) a multiplicity of different polynucleotide template sequences using a randomly primed RNA/DNA composite primer.

Abstract: The present disclosure provides an organic/inorganic composite porous separator and a preparation method thereof and an electrochemical device. The organic/inorganic composite porous separator comprises: a porous substrate; and an organic/inorganic composite porous coating coated on at least one surface of the porous substrate; the organic/inorganic composite porous coating comprises inorganic particles, an adhesive and organic particles with at least two swelling degrees, and the organic particles are swollen by a plasticizer. A preparation method of an organic/inorganic composite porous separator is used for preparing the previous organic/inorganic composite porous separator. An electrochemical device comprises the organic/inorganic composite porous separator. The separator can form an excellent interface, thereby reducing the risk of organic particles blocking micro pores, helping to improve the permeability of the separator, and improving the conductivity of the separator.