Abstract: Geologic modeling methods and systems may use design-space to design-space mapping to facilitate simulation grid generation for multiple interpretations of a subsurface region. As one example, one or more embodiments of a geologic modeling method may comprise: obtaining first and second geologic models having different structural interpretations of a subsurface region; mapping each of the geologic models to associated design space models representing an unfaulted subsurface region; determining a design-to-design space mapping from the first design space model to the second design space model; using said mapping to copy parameter values from the first design space model to the second of the design space model; gridding each of the design space models to obtain design space meshes; partitioning cells in the first and second design space meshes along faults; reverse mapping the partitioned design space meshes to the physical space to obtain first and second physical space simulation meshes.

Abstract: In one embodiment, a process is performed during controlling Autonomous Driving Vehicle (ADV). A confidence level associated with a sensed obstacle is determined. If the confidence level is below a confidence threshold, and a distance between the ADV and a potential point of contact with the sensed obstacle is below a distance threshold, then performance of a driving decision is delayed. Otherwise, the driving decision is performed to reduce risk of contact with the sensed obstacle.

Abstract: An iron-based metal powder for ultra-high-speed laser cladding comprising chemical composition and mass percentage of the metal powder of: C 0.6˜1.0%, Cr 17.0˜20.0%, Ni 5.0˜6.5%, Mn 2.0˜4.0%, Mo 1.0˜1.5%, Ti 4.0˜6.0%, B 1.0˜1.5%, N 0.08˜0.15%, Si?0.5%, P?0.030%, S?0.030%, balance of Fe and unavoidable impurities, wherein the particle size of the metal powder is 15˜65 ?m, the fluidity is 16˜20 s/50 g.

Abstract: Embodiments of this application provide a solid-state electrolyte. The solid-state electrolyte includes a porous coordination polymer having an unsaturated metal site, an anionic group coordinated with and grafted on the unsaturated metal site, and a cation bound with the anionic group. The anionic group includes one or more substituted carboxylate anionic groups and/or one or more substituted sulfonate anionic groups. The cation includes one or more of a lithium ion, a sodium ion, a potassium ion, a magnesium ion, a zinc ion, and/or an aluminum ion.

Abstract: Systems and methods for simulating subterranean regions having fracture geometries. Non-intrusive embedded discrete fracture modeling formulations are applied to two-dimensional and three-dimensional unstructured grids, with mixed elements, using an element-based finite-volume method in conjunction with commercial simulators to model subsurface characteristics in regions having complex hydraulic fractures, complex natural fractures, or a combination of both.

Abstract: Systems and methods for simulating subterranean regions having multi-scale fracture geometries. Non-intrusive embedded discrete fracture modeling formulations are applied in conjunction with commercial simulators to efficiently and accurately model subsurface transient flow characteristics in regions having complex hydraulic fractures, complex natural fractures, or a combination of both, and geometries including corner point grids.

Abstract: An illustrative geologic modeling method may comprise: obtaining a geologic model representing a subsurface region in physical space, the subsurface region being divided into multiple zones; sequentially generating a physical space simulation mesh for each of said multiple zones by: (a) mapping a current zone of the physical space geologic model to a current zone of a design space model representing a current zone of an unfaulted subsurface region; (b) gridding the design space model to obtain a design space mesh; (c) partitioning cells in the current zone of the design space mesh with faults mapped from the current zone of the physical space geologic model, thereby obtaining a partitioned design space mesh for the current zone; and (d) reverse mapping the partitioned design space mesh for the current zone to the physical space for the current zone.

Abstract: A tracked vehicle is provided. The tracked vehicle includes a frame, a driving mechanism installed in the frame, and two track wheels respectively arranged on the left and right sides of the frame. The driving mechanism drives the track wheels to rotate. The track wheel includes a track body, a first main support, a second main support and a third main support provided in the track body. The first main support, the second main support and the third main support are connected to the vehicle frame through the first, second and third connecting rods respectively. The second main support is provided with an auxiliary support frame having one end hinged to the second main support, and the other end of the auxiliary support frame is provided with a first roller contacting with the inner side of the track body.

Abstract: A tracked vehicle is provided. The tracked vehicle includes a frame, a driving mechanism installed in the frame, and two track wheels respectively arranged on the left and right sides of the frame. The driving mechanism drives the track wheels to rotate. The track wheel includes a track body, a first main support, a second main support and a third main support provided in the track body. The first main support, the second main support and the third main support are connected to the vehicle frame through the first, second and third connecting rods respectively. The second main support is provided with an auxiliary support frame having one end hinged to the second main support, and the other end of the auxiliary support frame is provided with a first roller contacting with the inner side of the track body.

Abstract: Disclosed is a metal anode, including a metal anode body (10) and a protective layer (11) formed on one or two side surfaces of the metal anode body (10). The protective layer (11) includes a coordination polymer having an unsaturated metal site or a complexation product formed by complexation between the coordination polymer having the unsaturated metal site and anions of battery electrolyte salt. The coordination polymer uses zirconium, aluminum, or iron as a center and uses R—Xn as an organic ligand, R is n-valent hydrocarbyl, substituted hydrocarbyl, or hydrocarboxy, n is an integer in a range of 1 to 4, X is an oxygen-containing functional group capable of forming metal-oxygen chemical bond with the metal anode body (10), and the metal-oxygen chemical bond is formed between metal atoms on a surface of the metal anode body (10) and oxygen atoms in the X group.anodeanode.

Abstract: The invention relates to a double-sided drilling fixture for die-forged pistons and a double-sided drilling process thereof. It overcomes the defects of low efficiency and accuracy of the double-sided drilling operation for die-forged pistons in the prior art. The invention comprises a die-forged piston, a fixture base assembly, an upper load-resisting assembly and a lower expansion-resisting assembly. The upper load-resisting assembly is installed on the fixture base assembly and disposed above the die-forged piston. A fixation base, whose upper surface shape is the same as internal surface shape of the die-forged piston, is installed above the fixture base assembly. The die-forged piston is sleeved on the fixation base. The invention achieves simultaneous drilling on both sides of the two rear skirt surfaces of die-forged pistons and delivers quick clamping and automatic fixation, significantly reducing the difficulty in the assembly of drilling plate and workpiece and increasing the alignment accuracy.

Abstract: The present invention relates to a ball picking robot, comprising a walking mechanism, a ball picking mechanism, a ball pushing mechanism and a ball storage mechanism. The ball picking mechanism comprises a ball picking basket, an air cylinder used for driving the ball picking basket to move up and down, an air storage tank used for providing an air source for the air cylinder, a solenoid valve arranged at the air outlet of the air storage tank, a micro air pump connected to the air storage tank, and a shielding assembly arranged at an opening in the rear end of the ball picking basket. A first gear is mounted at the input end of the micro air pump. The ball pushing mechanism comprises a rotary ball discharging assembly, comprising an either-rotation motor, a rotary impeller connected to a first output shaft of the either-rotation motor through a belt assembly.

Abstract: An iron-based metal powder for ultra-high-speed laser cladding comprising chemical composition and mass percentage of the metal powder of: C 0.6˜1.0%, Cr 17.0˜20.0%, Ni 5.0˜6.5%, Mn 2.0˜4.0%, Mo 1.0˜1.5%, Ti 4.0˜6.0%, B 1.0˜1.5%, N 0.08˜0.15%, Si?0.5%, P?0.030%, S?0.030%, balance of Fe and unavoidable impurities, wherein the particle size of the metal powder is 15˜65 ?m, the fluidity is 16˜20 s/50 g.

Abstract: Geologic modeling methods and systems may use design-space to design-space mapping to facilitate simulation grid generation for multiple interpretations of a subsurface region. As one example, one or more embodiments of a geologic modeling method may comprise: obtaining first and second geologic models having different structural interpretations of a subsurface region; mapping each of the geologic models to associated design space models representing an unfaulted subsurface region; determining a design-to-design space mapping from the first design space model to the second design space model; using said mapping to copy parameter values from the first design space model to the second of the design space model; gridding each of the design space models to obtain design space meshes; partitioning cells in the first and second design space meshes along faults; reverse mapping the partitioned design space meshes to the physical space to obtain first and second physical space simulation meshes.

Abstract: Systems and methods for simulating subterranean regions having multi-scale, complex fracture geometries. Non-intrusive embedded discrete fracture modeling formulations are applied in conjunction with commercial simulators to efficiently and accurately model subsurface characteristics in regions having complex hydraulic fractures, complex natural fractures, or a combination of both.

Abstract: The invention relates to a double-sided drilling fixture for die-forged pistons and a double-sided drilling process thereof. It overcomes the defects of low efficiency and accuracy of the double-sided drilling operation for die-forged pistons in the prior art. The invention comprises a die-forged piston, a fixture base assembly, an upper load-resisting assembly and a lower expansion-resisting assembly. The upper load-resisting assembly is installed on the fixture base assembly and disposed above the die-forged piston. A fixation base, whose upper surface shape is the same as internal surface shape of the die-forged piston, is installed above the fixture base assembly. The die-forged piston is sleeved on the fixation base. The invention achieves simultaneous drilling on both sides of the two rear skirt surfaces of die-forged pistons and delivers quick clamping and automatic fixation, significantly reducing the difficulty in the assembly of drilling plate and workpiece and increasing the alignment accuracy.

Abstract: An illustrative geologic modeling method may comprise: obtaining a geologic model representing a subsurface region in physical space, the subsurface region being divided into multiple zones; sequentially generating a physical space simulation mesh for each of said multiple zones by: (a) mapping a current zone of the physical space geologic model to a current zone of a design space model representing a current zone of an unfaulted subsurface region; (b) gridding the design space model to obtain a design space mesh; (c) partitioning cells in the current zone of the design space mesh with faults mapped from the current zone of the physical space geologic model, thereby obtaining a partitioned design space mesh for the current zone; and (d) reverse mapping the partitioned design space mesh for the current zone to the physical space for the current zone.

Abstract: Systems and methods for simulating subterranean regions having multi-scale fracture geometries. Non-intrusive embedded discrete fracture modeling formulations are applied in conjunction with commercial simulators to efficiently and accurately model subsurface transient flow characteristics in regions having complex hydraulic fractures, complex natural fractures, or a combination of both, and geometries including corner point grids.

Abstract: Systems and methods for simulating subterranean regions having multi-scale fracture geometries. Non-intrusive embedded discrete fracture modeling formulations are applied to two-dimensional and three-dimensional unstructured grids, with mixed elements, using an element-based finite-volume method in conjunction with commercial simulators to model subsurface characteristics in regions having complex hydraulic fractures, complex natural fractures, or a combination of both.

Abstract: Systems and methods for simulating subterranean regions having multi-scale, complex fracture geometries. Non-intrusive embedded discrete fracture modeling formulations are applied in conjunction with commercial simulators to efficiently and accurately model subsurface characteristics in regions having complex hydraulic fractures, complex natural fractures, or a combination of both.