Abstract: An apparatus for downhole multi-dimensional imaging includes an acquisition unit configured to acquire a formation resistivity signal, an ultrasonic echo signal and an orientation signal regularly; a sector calculation unit configured to calculate, based on said orientation signal, a sector where a currently acquired signal is from; and a multi-dimensional imaging unit, configured to calculate, based on the signals acquired by the acquisition unit, data of resistivity, distance from a drilling tool to a borehole wall and ultrasonic echo amplitude, and distribute said data into all sectors for feature recognition and extraction, thus obtaining key features characterizing a current formation being drilled, said key features being transmitted to ground for guiding drilling process. The structural complexity and the length of the downhole imaging measurement instrument can be reduced, and feature recognition can be directly performed on the imaging data underground.

Abstract: A linear joint includes a motor assembly includes a rotating shaft for outputting motion; a transmission mechanism including a screw and a nut threadedly connected to the screw, the nut being coaxial with respect to and securely connected to the rotating shaft so as to be rotatable together with the rotating shaft; and a rod connected to a first end of the screw so as to move together with the screw along a lengthwise direction of the screw.

Abstract: A device capable of simulating a limb of a humanoid robot includes a vertically arranged guiding rail, a lower block fixed to the lower end of die guiding rail, an upper block slidably connected to rail, a lower linkage bar rotatably coupled to the lower block, an upper linkage bar rotatably coupled to the upper block, a joint module located between and rotatably coupled to the lower linkage bar and the upper linkage bar, a sensor configured to measure a force exerted on the joint; and a data processing module electrically connected to the sensor and configured to receive data from the sensor to determine a value of the force.

Abstract: The application relates to a strongly-polarized molecule of the following general formula: wherein A denotes a group having a polarizability greater than 2 C·m2/V; R1 and R2 are respectively hydrogen, halogen, a hydroxyl group, an amino group, a cyano group, a nitro group, a carboxyl group, a C1-12 alkyl group, a C1-12 alkoxy group, a halogenated C1-12 alkyl group, a halogenated C1-12 alkoxy group, a hydroxyl C1-12 alkyl group, a hydroxyl C1-12 alkoxy group, or a C1-12 alkyl amino group; x1 and x2 denote 0 or an integer no less than 1, respectively; and y1 and y2 denote 0 or an integer no less than 1, respectively. The application further relates to a strongly-polarized molecule-graphene molecule heterojunction, and a single molecule field effect transistor comprising a substrate, a gate, a dielectric layer and the strongly-polarized molecule-graphene molecule heterojunction; and the dielectric layer is located between the gate and the strongly-polarized molecule-graphene molecule heterojuction.

Abstract: A linear joint includes a motor assembly includes a rotating shaft for outputting motion; a transmission mechanism including a screw and a nut threadedly connected to the screw, the nut being coaxial with respect to and securely connected to the rotating shaft so as to be rotatable together with the rotating shaft; and a rod connected to a first end of the screw so as to move together with the screw along a lengthwise direction of the screw.

Abstract: A robot foot structure for being used in conjunction with the main body structure of a humanoid robot is provided, the robot foot structure being connected to a bottom of the main body structure, wherein the robot foot structure includes a sole plate and a buffering mechanism provided on the sole plate, the buffering mechanism is configured to be connected between the sole plate and the main body structure of the humanoid robot for buffering a load acted on the robot foot structure generated by the weight of the main body structure during walking of the robot foot structure. A load generated by the weight of the main body structure during walking is acted on the buffering mechanism which in turn absorbs an impact resulted from the load as the robot foot structure touches the ground, such that the service life of the robot foot structure can be extended.

Abstract: A device capable of simulating a limb of a humanoid robot includes a vertically arranged guiding rail, a lower block fixed to the lower end of die guiding rail, an upper block slidably connected to rail, a lower linkage bar rotatably coupled to the lower block, an upper linkage bar rotatably coupled to the upper block, a joint module located between and rotatably coupled to the lower linkage bar and the upper linkage bar, a sensor configured to measure a force exerted on the joint; and a data processing module electrically connected to the sensor and configured to receive data from the sensor to determine a value of the force.

Abstract: A robot foot structure for being used in conjunction with the main body structure of a humanoid robot is provided, the robot foot structure being connected to a bottom of the main body structure, wherein the robot foot structure includes a sole plate and a buffering mechanism provided on the sole plate, the buffering mechanism is configured to be connected between the sole plate and the main body structure of the humanoid robot for buffering a load acted on the robot foot structure generated by the weight of the main body structure during walking of the robot foot structure. A load generated by the weight of the main body structure during walking is acted on the buffering mechanism which in turn absorbs an impact resulted from the load as the robot foot structure touches the ground, such that the service life of the robot foot structure can be extended.