Abstract: A method for achieving terminal-pair definition of four-terminal-pair (4TP) impedance and an application thereof are provided, which belongs to the field of precision measurement and metrology. A current output terminal of a two-stage follower is connected to a high current terminal of impedance through a coaxial line, and a voltage output terminal of the two-stage follower is connected to a high voltage terminal of the impedance through the coaxial line, which makes current of the high voltage terminal be 0, and core wire currents and outer wire currents of the high current terminal equal and reverse. The terminal-pair definition of the 4TP impedance can be satisfied; and the follower is added to make a bridge ratio variable and isolate effects of bridge load changes, thereby accelerating a balancing speed of the 4TP impedance bridge, and achieving accurate and fast comparative measurement having high precision of the 4TP AC impedance.

Abstract: A method for achieving terminal-pair definition of four-terminal-pair (4TP) impedance and an application thereof are provided, which belongs to the field of precision measurement and metrology. A current output terminal of a two-stage follower is connected to a high current terminal of impedance through a coaxial line, and a voltage output terminal of the two-stage follower is connected to a high voltage terminal of the impedance through the coaxial line, which makes current of the high voltage terminal be 0, and core wire currents and outer wire currents of the high current terminal equal and reverse. The terminal-pair definition of the 4TP impedance can be satisfied; and the follower is added to make a bridge ratio variable and isolate effects of bridge load changes, thereby accelerating a balancing speed of the 4TP impedance bridge, and achieving accurate and fast comparative measurement having high precision of the 4TP AC impedance.

Abstract: A resource mapping method and apparatus are described that reduce resource mapping complexity. The method includes an access network device obtaining resource mapping information of at least one terminal, and sending the resource mapping information to the at least one terminal respectively. The resource mapping information indicates a resource element RE to which each of the at least one terminal performs mapping in each RMB in a first resource mapping block RMB set. An RE to which a first terminal performs mapping in each RMB in the first RMB set is determined based on a first interleaved sequence, and the first interleaved sequence is determined based on a base sequence. The first terminal is any one of the at least one terminal, and the first RMB set includes at least one RMB.

Abstract: Provided are small molecule inhibitors of the KRAS(G12D) mutant oncoprotein having the structural formula: and pharmaceutically acceptable salts and compositions thereof, which are useful for treating cancers and related conditions.

Abstract: A hinge type bistable magnetic circuit structure, including a coil assembly, an L-shaped armature, an L-shaped yoke and a permanent magnet the L-shaped armature is configured on a side of the L-shaped yoke after rotating 180 degrees, and the two are together formed a frame-shaped profile, at two opposite diagonals of the frame-shaped profile, a junction is provided with a pre-set first gap; the L-shaped yoke includes a first and a second yoke portion, the coil assembly is arranged at and cooperated with the first yoke portion, one end of the permanent magnet is connected with the first yoke portion; the L-shaped armature includes a first and a second armature portion, the first armature portion is configured to cooperated with the other end of the permanent magnet so as to be able to perform a seesaw type movement, thereby forming a bistable magnetic circuit.

Abstract: A colour wheel assembly, a light source system provided with the same, and a projection device are provided, a boron nitride coating being arranged on the side of the colour wheel assembly corresponding to a red fluorescent area and the other side being provided with glass powder, and the two sides of a non-red fluorescent area both being provided with a glass powder coating layer. By means of arranging boron nitride material in a position corresponding to a red fluorescent area, as the boron nitride material has good thermal conductivity relative to the glass powder and the crystal structure of the boron nitride is a layered structure, having the effect of effectively blocking light and thereby further reducing the excitation light incident on the red fluorescent powder, attenuation of the red fluorescence under the direct excitation of strong excitation light can be effectively prevented.

Abstract: Provided are small molecule inhibitors of the KRAS(G12D) mutant oncoprotein having the structural formula: R00F2C—L—R0 and pharmaceutically acceptable salts and compositions thereof, which are useful for treating cancers and related conditions.

Abstract: A separation and purification coupled process with a high helium yield and diversified products is provided. The process is as follows. Firstly, a low-concentration helium-containing gas after being pressurized and pre-treated enters a two-stage and two-section membrane separation unit to produce a helium product with a medium concentration by concentrating stage by stage through the membrane separation unit. A part of the helium with medium concentration enters an adsorption unit for further concentration to produce a helium product above grade A.

Abstract: A separation and purification coupled process with a high helium yield and diversified products is provided The process is as follows. Firstly, a low-concentration helium-containing gas after being pressurized and pre-treated enters a two-stage and two-section membrane separation unit to produce a helium product with a medium concentration by concentrating stage by stage through the membrane separation unit. A part of the helium with medium concentration enters an adsorption unit for further concentration to produce a helium product above grade A.

Abstract: A colour wheel assembly (4), a light source system provided with same, and a projection device, a boron nitride coating being arranged on the side of the colour wheel assembly corresponding to a red fluorescent area (301) and the other side being provided with glass powder, and the two sides of a non-red fluorescent area both being provided with a glass powder coating layer.

Abstract: The present invention belongs to the field of alkaline polymer electrolyte membranes, and relates to a comb-shaped structure polybenzimidazole anion exchange membrane with high conductivity and preparation method thereof. In the invention, firstly, polybenzimidazole is grafted with the non-cationic side chains to the max grafting rate to synthesize the de-protonated comb-shaped polybenzimidazole material, avoiding the N—H in benzimidazole forms ionic binding with cationic functional groups, which will reduce the reactivity and mobility of cationic groups; then react de-protonated comb-shaped polybenzimidazole with quaternization reagent to attach the pendent side chain with cationic functional groups, making it easy to aggregate to form ion clusters and hydrophilic/hydrophobic microphase separation. The anion exchange membrane prepared in this invention has excellent conductivity, mechanical properties and alkaline stability.

Abstract: A method for transmitting feed stream may include receiving, over a network, a request for transmitting feed stream to a user interface of an application installed in a terminal device, wherein the request is associated with one or more users of the terminal device and the user interface is to be displayed to the one or more users. The method may also include determining at least one operating control element to be displayed in the user interface, wherein the operating control element is selected from one or more pre-arranged control elements based on historical behavior data of the one or more users. The method may further include transmitting feed stream to the terminal device over the network, wherein the feed stream is configured to prompt the application to display the operating control element in the user interface of the application.

Abstract: Embodiments of this application provide a near-field wireless communication service processing method performed at a first computing device associated with a social networking application. While running a social networking application, the first computing device detects a near-field wireless communication signal broadcasted by a second computing device associated with a service provider account registered with the social networking application.

Abstract: The present invention provides a surface modification method based on the polymerization and cross-linking solidification of dopamine and/or its derivatives, which belongs to the technical field about composite material fabrication. The principle of dopamine polymerization and the formation process of polydopamine coating layer are the foundation of the present invention. This innovative method is established after deeply analyzing the failure mechanism of polydopamine coating layer in severe environments, such as organic solvents and acidic/alkalic environments. The critical work is finding out an eligible cross-linking agent which could react with the active functional groups in polydopamine. After cross-linking reaction, the soluble low-molecular-weight dopamine oligomers could be transformed into the insoluble three-dimensional stereographic networks.

Abstract: Embodiments of this application provide a near-field wireless communication service processing method performed at a first computing device associated with a social networking application. While running a social networking application, the first computing device detects a near-field wireless communication signal broadcasted by a second computing device associated with a service provider account registered with the social networking application.

Abstract: Embodiments of this application provide a near-field wireless communication service processing method performed at a first computing device. While running a social networking application, the first computing device listens to a near-field wireless communication signal broadcasted by a second computing device. After detecting the near-field wireless communication signal broadcasted by the second computing device, first computing device processes the near-field wireless communication signal to obtain identification information associated with the second computing device. The first computing device sends the identification information associated with the second computing device to a remote server supporting the social networking application and obtains a preset service page corresponding to the identification information associated with the second computing device from the server, and displays the preset service page within the social networking application on the first computing device.

Abstract: The present invention provides a surface modification method based on the polymerization and cross-linking solidification of dopamine and/or its derivatives, which belongs to the technical field about composite material fabrication. The principle of dopamine polymerization and the formation process of polydopamine coating layer are the foundation of the present invention. This innovative method is established after deeply analyzing the failure mechanism of polydopamine coating layer in severe environments, such as organic solvents and acidic/alkalic environments. The critical work is finding out an eligible cross-linking agent which could react with the active functional groups in polydopamine. After cross-linking reaction, the soluble low-molecular-weight dopamine oligomers could be transformed into the insoluble three-dimensional stereographic networks.

Abstract: Embodiments of this application provide a near-field wireless communication service processing method performed at a first computing device. While running a social networking application, the first computing device listens to a near-field wireless communication signal broadcasted by a second computing device. After detecting the near-field wireless communication signal broadcasted by the second computing device, first computing device processes the near-field wireless communication signal to obtain identification information associated with the second computing device. The first computing device sends the identification information associated with the second computing device to a remote server supporting the social networking application and obtains a preset service page corresponding to the identification information associated with the second computing device from the server, and displays the preset service page within the social networking application on the first computing device.

Abstract: A method of forming a keyword based search query that uses a plurality of keywords, in which the keywords of the query are arranged into groups of purpose-related keywords, in which each keyword is associated with a designation of its relative importance. The keywords of a group may be identified manually by the searcher, or existing keywords in a group may be used to suggest or automatically add additional related keywords to the group. The keywords of a group need not be semantically related, but only related to a common purpose of the keyword group. Additional keywords can be suggested to the searcher, or automatically added to the groups. Suitable additional keywords may be identified by reference to previous searches in which the existing keywords were grouped with those additional keywords. Keywords may also be derived from text designated by the searcher, using all or portions of one or more documents or text blocks that the user identifies as describing a concept of interest to the searcher.

Abstract: An insulation detection circuit suitable for detecting an insulation status between a high voltage power and a low voltage power of a vehicle is disclosed. The circuit includes a first energy storage unit, a second energy storage unit, a constant current unit, and a detection unit. The first energy storage unit is coupled to the high voltage power. The second energy storage unit is coupled between the first energy storage unit and the low voltage power. The constant current unit is coupled between the first energy storage unit and the second energy storage unit. The detection unit is coupled to the second energy storage unit for detecting a current change of the second energy storage unit. When the detection unit detects that current flowing through the second energy storage unit is smaller than a predetermined value, a detection signal representing that the insulation status is abnormal is outputted.