Abstract: A method for constructing a large-span station by two-wing open type semi-covered excavation and semi-reverse construction, is divided into three stages of excavation. First, excavate a first-stage inner small foundation pit, then excavate a second-stage annular foundation pit within the first-stage retaining piles and outside the range of the first-stage inner small foundation pit, and finally excavate a third-stage semi-covered excavation foundation pit below the first-stage inner small foundation pit and the second-stage annular foundation pit. By setting graded retaining piles, middle upright post piles, middle top plates, local waist beams and local concrete supports in the soil-rock combination strata, so that the force transfer between the foundation pit enclosure and the station main body structures and the underlying rock layer is clear and reliable, and a stable frame structure is achieved.

Abstract: A catalyst for continuous production of 1,1,1,3-tetrachloropropane through gas-solid reaction as well as a preparation method and use thereof are provided. The catalyst includes a zero-valent iron and phosphorus co-modified carbon material which includes a carbon material as a carrier, a zero-valent iron supported onto the carrier and serving as an active component, and a phosphate functional group formed on the surface of the carbon material. The preparation method includes: co-modifying a carbon material using a ferric salt and organic phosphorus to obtain the catalyst for continuous production of 1,1,1,3-tetrachloropropane through gas-solid reaction. The present application further provides a method for continuous production of 1,1,1,3-tetrachloropropane through gas-solid reaction.

Abstract: A semiconductor structure includes a semiconductor on insulator (SOI) substrate, a first electrically conductive structure, and a second electrically conductive structure. The SOI substrate includes a base substrate, a buried insulation layer disposed on the base substrate, a semiconductor layer disposed on the buried insulation layer, and a trap rich layer disposed between the buried insulation layer and the base substrate. At least a part of the first electrically conductive structure and at least a part of the second electrically conductive structure are disposed in the trap rich layer. A part of the trap rich layer is disposed between the first electrically conductive structure and the second electrically conductive structure. The first electrically conductive structure, the second electrically conductive structure, and the trap rich layer disposed between the first electrically conductive structure and the second electrically conductive structure are at least a portion of an anti-fuse structure.

Abstract: A recombinant strain with modified gene BBD29_11265 and a method for constructing the same are provided. The recombinant strain is a bacterium that generates L-glutamic acid, and has an improved expression of a polynucleotide encoding an amino acid sequence of SEQ ID NO: 3 or a homologous sequence thereof; the improved expression can be having a point mutation in, and an enhanced expression of the polynucleotide encoding an amino acid sequence of SEQ ID NO: 3 or a homologous sequence thereof. A genetically engineered bacterium in which the base at position 70 in the BBD29_112665 gene sequence is mutated to adenine from guanine, causing alanine at position 24 in the coded corresponding amino acid sequence to be substituted with threonine, and an engineered bacterium overexpressing the BBD29_112665 gene or BBD29_11265G70A gene are constructed in the present invention, facilitating an increase in the production and conversion rate of L-glutamic acid.

Abstract: Techniques are disclosed for generating a sequence of symbols based on input data for a neuro-linguistic model. The model may be used by a behavior recognition system to analyze the input data. A mapper component of a neuro-linguistic module in the behavior recognition system receives one or more normalized vectors generated from the input data. The mapper component generates one or more clusters based on a statistical distribution of the normalized vectors. The mapper component evaluates statistics and identifies statistically relevant clusters. The mapper component assigns a distinct symbol to each of the identified clusters.

Abstract: Techniques are disclosed for building a dictionary of words from combinations of symbols generated based on input data. A neuro-linguistic behavior recognition system includes a neuro-linguistic module that generates a linguistic model that describes data input from a source (e.g., video data, SCADA data, etc.). To generate words for the linguistic model, a lexical analyzer component in the neuro-linguistic module receives a stream of symbols, each symbol generated based on an ordered stream of normalized vectors generated from input data. The lexical analyzer component determines words from combinations of the symbols based on a hierarchical learning model having one or more levels. Each level indicates a length of the words to be identified at that level. Statistics are evaluated for the words identified at each level. The lexical analyzer component identifies one or more of the words having statistical significance.

Abstract: Disclosed are strain having enhanced L-glutamic acid production capacity, and method for constructing the same and use thereof. A nucleotide sequence is provided by introducing a point mutation to a wild-type BBD29-00405 gene in Corynebacterium glutamicum so that the base at position 597 of SEQ ID NO: 1 is mutated from guanine (G) into adenine (A). Also provided is a recombinant strain obtained by introducing the polynucleotide sequence into L-glutamic acid-producing Corynebacterium glutamicum, the recombinant strain comprising a BBD29-00405 gene containing a point mutation. Compared with an unmodified strain, the resulting strain facilitates production of L-glutamic acid at a higher concentration.

Abstract: A structure multi-dimensional loading test system considering real complex boundary conditions considering real complex boundary conditions comprises a main part of machine, a base part, a hydraulic power supply and a control system. The system can simulate the load borne by a structure in a real working environment better and more accurately, realize multi-dimensional loading of the structure with six degrees of freedom in space and provide more real and valuable experimental data for the research on damage of reinforced concrete materials, components and structures under the action of an earthquake, and the research results will help researchers further reveal the damage mechanism of reinforced concrete structures, put forward the corresponding damage criteria and develop the corresponding seismic design methods.

Abstract: A method include obtaining at least one first PET image of a subject acquired by a PET scanner and at least one first MR image of the subject acquired by an MR scanner. The method may also include obtaining a target neural network model. The target neural network model may provide a mapping relationship between PET images, MR images, and corresponding attenuation correction data, and output attenuation correction data associated with a specific PET image of the PET images. The method may further include generating first attenuation correction data corresponding to the subject using the target neural network model based on the at least one first PET image and the at least one first MR image of the subject, and determining a target PET image of the subject based on the first attenuation correction data corresponding to the subject.

Abstract: Techniques are disclosed for generating anomaly scores for a neuro-linguistic model of input data obtained from one or more sources. According to one embodiment, generating anomaly scores includes receiving a stream of symbols generated from an ordered stream of normalized vectors generated from input data received from one or more sensor devices during a first time period. Upon receiving the stream of symbols, generating a set of words based on an occurrence of groups of symbols from the stream of symbols, determining a number of previous occurrences of a first word of the set of words, determining a number of previous occurrences of words of a same length as the first word, and determining a first anomaly score based on the number of previous occurrences of the first word and the number of previous occurrences of words of the same length as the first word.

Abstract: A fault detection method and system for tunnel dome lights based on an improved localization loss function. The method includes: constructing a dataset of tunnel dome light detection images; acquiring a you only look once (YOLO) v5s neural network based on the improved localization loss function; training the YOLO v5s neural network according to the dataset to obtain a trained YOLO v5s neural network; acquiring a to-be-detected tunnel dome light image; detecting, with the trained YOLO v5s neural network, the to-be-detected tunnel dome light image to obtain position coordinates of luminous dome lights; and determining, according to the position coordinates of the luminous dome lights, whether a fault occurs in the tunnel dome lights. The present disclosure can accurately localize the tunnel dome lights and label the positions, and can detect whether the tunnel dome lights work normally according to a relative positional relationship between the labeled dome lights.

Abstract: An embodiment of the present application discloses a thin film transistor, and an OLED display panel. The thin film transistor includes a flexible underlay, a shielding layer, a buffer layer, an active layer, a shielding layer, and a buffer layer disposed between the flexible underlay and the active layer. The buffer layer at least includes a first silicon oxide layer, a dielectric constant of the first silicon oxide layer ranges from 4.04 to 4.1. Increasing the dielectric constant of the first silicon oxide layer lowers a capacitor between a flexible layer and the active layer to mitigate an issue of a back channel effect generated by charges in a flexible layer to the active layer to ease the issue of lowered brightness and sticky images.

Abstract: Disclosed in the present application is a self-heating structure and a battery pack including the same. The self-heating structure includes a heating member, including a heating body and a connection lead molded on the heating body, the connection lead being used for electrically connecting a positive electrode tab of a core pack or a negative electrode tab of the core pack, so that a self-heating circuit is formed by the heating member and the core pack; and a control unit, controlling an on/off switching of the self-heating circuit according to temperature of the core pack, the control unit being provided on the connection lead to integrate the control unit and the connection lead.

Abstract: Provided are an organic electroluminescent material and a device comprising the same. The organic electroluminescent material is a compound having a structure of Formula 1. These new compounds can be applied in organic electroluminescent devices, for example, as host materials, transport materials (e.g., electron transport materials), etc., in organic electroluminescent devices, and can provide better device performance and especially improve the device lifetime. Further provided are an organic electroluminescent device including the compound and a compound composition including the compound.

Abstract: Embodiments of the present disclosure provide a method for forming a hole structure in a semiconductor device. The method for forming a hole structure having a first hole portion and a second hole portion connected to and over the first portion in a stack structure of a semiconductor device includes determining a hard mask layer. An etching resistivity of the hard mask layer may be inversely proportional to a difference between a first lateral dimension of the first hole portion and a second lateral dimension of the second hole portion, and the first lateral dimension may be less than the second lateral dimension. The method may also include forming the hard mask layer over the stack structure, and patterning the hard mask layer to form a first patterned hard mask layer that has a first mask opening. The first mask opening may have the first lateral dimension.

Abstract: A method and system for identifying a time delay in an extraction and separation process of rare earth: a reference sequence and comparison sequences are generated based on component contents of multiple rare earth elements and multiple process variables, and then preprocessed to determine a grey correlation. A comparison sequence with a highest correlation with the reference sequence is determined. An original data matrix is formed by taking the comparison sequence as a process variable. A time-correlation data matrix is constructed based on the obtained time delay sequence, time base sequence, and original data matrix to generate a time-correlation analysis matrix. A matrix H? norm is used to quantitatively describe the characteristics of the time-correlation analysis matrix, so as to determine a time delay sequence corresponding to a maximum H? norm as a to-be-solved multi-time delay.

Abstract: A fault detection method and system for tunnel dome lights based on an improved localization loss function. The method includes: constructing a dataset of tunnel dome light detection images; acquiring a you only look once (YOLO) v5s neural network based on the improved localization loss function; training the YOLO v5s neural network according to the dataset to obtain a trained YOLO v5s neural network; acquiring a to-be-detected tunnel dome light image; detecting, with the trained YOLO v5s neural network, the to-be-detected tunnel dome light image to obtain position coordinates of luminous dome lights; and determining, according to the position coordinates of the luminous dome lights, whether a fault occurs in the tunnel dome lights. The present disclosure can accurately localize the tunnel dome lights and label the positions, and can detect whether the tunnel dome lights work normally according to a relative positional relationship between the labeled dome lights.

Abstract: Embodiments of the present disclosure provide a method for forming a hole structure in a semiconductor device. The method includes forming a first etch mask over a stack structure, and removing a portion of the stack structure exposed by the first etch mask. The first etch mask may have a first mask opening with a first lateral dimension. The method may also include forming a second etch mask from the first etch mask. The second etch mask may have a second mask opening with a second lateral dimension that is greater than the first lateral dimension. The method may further include removing another portion of the stack structure exposed by the second etch mask to form the hole structure having a first hole portion and a second hole portion connected to and over the first hole portion.

Abstract: A safety seat, comprising a seat structure and a base, the seat structure and the base being rotatably connected. The seat structure comprises a connecting base, an adjusting assembly and a seat body. The seat body is mounted on the connecting base. The adjusting assembly is mounted on the seat body and is selectively connected to the connecting base. When the adjusting assembly is disengaged from the connecting base, the seat body can be disconnected from the connecting base and the base such that the rotation angle of the seat structure relative to the base can be adjusted and the pitch angle of the seat body relative to the connecting base can be adjusted. The rotation angle and the pitch angle can be adjusted simultaneously in a single operation. The convenience of operation is improved and the comfort for a child during use is also improved.

Abstract: Provided is an organic electroluminescent device. The organic electroluminescent device includes an anode, a cathode and a light-emitting layer disposed between the anode and the cathode, where the light-emitting layer at least comprises a first compound having a structure of Formula 1, Formula 2 or Formula 3, a second compound having a structure of Formula 4 and a third compound comprising a ligand having a structure of Formula 5. The new electroluminescent device has higher device efficiency, a longer device lifetime and better device performance. Further provided are an electronic apparatus and a composition.