Abstract: In one example aspect, the present disclosure is directed to a device. The device includes an active region on a semiconductor substrate. The active region extends along a first direction. The device also includes a gate structure on the active region. The gate structure extends along a second direction that is perpendicular to the first direction. Moreover, the gate structure engages with a channel on the active region. The device further includes a source/drain feature on the active region and connected to the channel. A projection of the source/drain feature onto the semiconductor substrate resembles a hexagon.

Abstract: Semiconductor device includes a substrate having multiple fins formed from a substrate, a first source/drain feature comprising a first epitaxial layer in contact with a first fin, a second epitaxial layer formed on the first epitaxial layer, and a third epitaxial layer formed on the second epitaxial layer, the third epitaxial layer comprising a center portion and an edge portion that is at a different height than the center portion; a fourth epitaxial layer formed on the third epitaxial layer, a second source/drain feature adjacent the first source/drain feature, comprising a first epitaxial layer in contact with a second fin, a second epitaxial layer formed on the first epitaxial layer of the second source/drain feature, a third epitaxial layer formed on the second epitaxial layer of the second source/drain feature, the third epitaxial layer comprising a center portion and an edge portion that is at a different height than the center portion of the third epitaxial layer of the second source/drain feature; a

Abstract: An embodiment of the present disclosure provides a method and an apparatus for constructing a vehicle dynamics model and a method and an apparatus for predicting vehicle state information. The method of constructing a vehicle dynamics model includes: obtaining sample historical state information and a sample control parameter sequence corresponding to each sample time of a target vehicle and label vehicle state information of each sample time; inputting the sample historical state information and the sample control parameter sequence corresponding to the sample time into an initial vehicle dynamics model to determine sample prediction state information; by using the sample prediction state information and the label vehicle state information, determining a current loss value; based on the current loss value, adjusting model parameters of the initial vehicle dynamics model until the initial vehicle dynamics model reaches a preset convergence state so as to obtain a pre-constructed vehicle dynamics model.

Abstract: A method for micro-ridge mixed-sowing cultivation of dryland crops includes the following steps: S1: cleaning ditches and draining away water in dryland; S2: harvesting the preceding crop, leaving the stubble, smashing the stalks of the preceding crop, and then spreading the smashed stalks on the stubble; S3: trenching the dryland to form ecological trenches; S4: flattening the standing stubble and the smashed stalks on the seedbed surface to form an underlying surface, molding seed-fertilizer-soil compounds into a ridge shape and falling the seed-fertilizer-soil compounds on the underlying surface to form ecological ridges, wherein a plurality of ecological ridges are formed between adjacent ecological trenches, an ecological depression is formed between adjacent ecological ridges, and after sowing, an irrigation is carried out once in a manner, wherein the manner includes: draining water shortly after the irrigation, without leaving a water layer in the field.

Abstract: A method for micro-ridge mixed-sowing cultivation of rice includes: S1: draining away water at the maturity stage of the preceding crop until reaching a state allowing a harvester to operate; S2: harvesting the preceding crop, leaving the stubble, smashing the stalks of the preceding crop, and then spreading the smashed stalks on the stubble to form a rhizosphere layer for rice growth; S3: trenching the field to form ecological trenches; S4: flattening the standing stubble and the smashed stalks on the seedbed surface to form an underlying surface, molding seed-fertilizer-soil compounds into a ridge shape and fall the seed-fertilizer-soil compounds on the underlying surface to form ecological ridges, wherein a plurality of ecological ridges are formed between adjacent ecological trenches, and the seed-fertilizer-soil compounds are obtained by thoroughly mixing rice seeds, chemical fertilizers and soil at a mass ratio of 6 to 14:50 to 70:6,000 to 10,000.