451 results about "Chinese characters" patented technology

The invention discloses an AI automatic editing method and related equipment, and the method comprises the steps: obtaining a video prototype template selected by a user, prompt information inputted by the user, and original materials uploaded by the user through a user interaction interface, and calling a language large model to generate a structured video script; performing association degree matching on the structured script and the original material through a target detection model, and screening the original material according to a matching result and a quality scoring model to obtain an original video clip; performing background music matching according to the video script to obtain background music, generating voice dubbing and a flower-character chartlet according to the video script, generating video subtitles according to the voice dubbing, performing time axis alignment on each video media element, and synthesizing into a finished video. According to the embodiment of the invention, full-process automatic processing from script generation to video synthesis can be realized, and a high-quality finished video meeting user requirements can be efficiently output. The method can be widely applied to the technical field of automatic editing.

The invention relates to the technical field of natural language processing, in particular to a data enhancement and feature enhancement-based Chinese named entity recognition method, which is based on a feature enhancement double-attention named entity recognition model, and is characterized in that the model comprises an embedded layer, a data enhancement module, a multi-scale convolution fusion attention layer and a prediction layer; the embedded layer uses a dual-channel attention fusion module to process texts in parallel, fuses multi-dimensional information features of Chinese characters, combines an error correction type mask language model, a pre-training model and a bidirectional gating loop unit, fuses local and global text features, and obtains text representation from multiple dimensions and multiple levels; according to the method, by introducing an innovative model mechanism or training strategy, challenges such as label sparsity and text noise existing in a Chinese named entity recognition task can be effectively handled, the learning ability and generalization performance of the model for long-tail entity categories are improved, and the robustness of the model in a real and non-ideal data environment is enhanced.

The invention relates to the technical field of liquid crystal display, and discloses a liquid crystal module character display method, which comprises the following steps of: performing stroke decomposition and topological relation establishment on Chinese characters in a target character set to generate a character stroke data set; performing two-dimensional character topological mapping and compressed encoding on the to-be-displayed characters to form compressed character description data; executing hierarchical rendering and stroke synthesis in a character reconstruction engine to generate a target character dot matrix; pixel array electric field distribution optimization is carried out, and sub-pixel-level precision character edge display data are obtained by controlling the driving voltage gradient; performing electric field compensation based on the character edge display data with sub-pixel-level precision to form character display data with enhanced edge sharpness; stroke self-adaptive anti-aliasing processing is carried out on the character display data with enhanced edge sharpness, clear Chinese character display data is output, the visual smoothness of character edges in a small-size display environment is optimized, and the overall recognition degree of characters is improved.

The invention provides a cross-font Chinese character recognition method based on structure embedding alignment, which aims at solving the problems of large stroke form change and strong structure variation of Chinese characters under different font styles, and comprises the following steps of: firstly, carrying out skeleton extraction on a character image and modeling into a topological graph structure with geometric attributes; extracting character graph embedding representation through a graph converter network comprising graph convolution, graph attention and a graph compression module; meanwhile, a structure tree corresponding to characters is constructed, a structure vector is generated by utilizing a structure embedding model, graph representation is supervised through structure consistency loss, and model learning is guided to have embedding features with structure stability and semantic consistency. According to the method, the recognition capability of the model for complex fonts, structural shielding and fuzzy characters is effectively improved, the structural understanding and generalization performance in a cross-font recognition task are remarkably enhanced, the problem that the recognition accuracy is reduced when font differences are large in an existing method is solved, and the method is suitable for various character image processing scenes.

The utility model relates to the technical field of trays, in particular to a B-shaped tray for enhancing the bending strength of a goods shelf on the tray. The utility model comprises a top bed board, an outer longitudinal bottom bed board, a middle longitudinal bottom bed board, a transverse bottom bed board, a middle cushion block and a long cushion block, wherein the long cushion block is positioned at the splicing position of the outer longitudinal bottom bed board and the transverse bottom bed board; the overall length of the outer side longitudinal bottom bed plate is larger than 1000 mm and smaller than or equal to 1200 mm; the pressure generated by the weight of goods can be better dispersed, the bending deformation of the tray in the area between the goods shelf supporting beams is reduced, the tray can bear heavier goods, the use range of the tray is expanded, meanwhile, the service life of the tray is prolonged, and the logistics cost is reduced.

A laying structure of and a laying implementation method for a thick-walled multi-cavity pultruded beam in the shape of a Chinese character "目" for a vehicle body, relating to the technical field of rail transit. The laying structure comprises a first cavity region (1), a second cavity region (2), a third cavity region (3), and an outer skin region (4) that are all formed by laying multi-axial fabrics. The second cavity region (2) is located between the first cavity region (1) and the third cavity region (3), and the first, second and third cavity regions are collectively wrapped by the outer skin region (4) to form a rectangular structure in the shape of the Chinese character "目". In the laying structure of a thick-walled multi-cavity pultruded beam in the shape of the Chinese character "目" for a vehicle body, quasi-isotropic mechanical properties of the thick-walled multi-cavity pultruded beam in the shape of the Chinese character "目" for a vehicle body are achieved by laying multi-axial fabrics; moreover, the laying structure is adapted to a pultrusion process, and optimizes the structural design, improving the overall rigidity and strength.

The utility model relates to the technical field of commodity shelves and discloses a stacked metal commodity shelf which comprises a base, a top plate, a plurality of vertically-arranged supporting rods and a plurality of partition plates, the two ends of each supporting rod are fixed to the upper surface of the base and the lower surface of the top plate respectively, and the partition plates are located among all the supporting rods. The partition plate is fixedly connected with the supporting rod; the monitoring module is used for monitoring a fire disaster, and the monitoring module is arranged on one of the partition plates; the cross section of the fireproof curtain is of a rectangular-ambulatory-plane structure, the top of the fireproof curtain is fixed to the lower surface of the top plate, and all the supporting rods and the partition plates are located in the fireproof curtain; and the control assembly is used for controlling descending of the fireproof curtain. According to the storage rack, fire disasters can be accurately monitored in time, fire behaviors are rapidly and effectively prevented from spreading to other storage racks by arranging the fireproof curtains and the protection assemblies, the risk of fire diffusion is reduced, and the response speed and reliability of emergency situations are improved.

1. The name of the design product: work paper (light yellow star-shaped grid). 2. The use of the design product: the design product is used for work paper for writing Chinese characters. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: front view. 5. Other circumstances that need to be explained: the design product is a thin product, and the left view, right view, top view, and bottom view are omitted.

The utility model provides a hanger rack for film coating of plastic knives and forks, which comprises a bottom frame shaped like a Chinese character'hui ', a support is horizontally connected above the bottom frame, a plurality of hangers are rotatably and detachably arranged between the bottom frame and the support, the support is shaped like a Chinese character'wang', the hangers are distributed on fulcrums of the support, and the hangers are arranged on the bottom frame. The hanging tool comprises a rotating piece, hanging rods are arranged on the rotating piece from top to bottom at equal intervals, and hanging discs are arranged on the hanging rods. The hanger has the advantages that a plurality of hangers can be independently supported, the hangers can rotate and are detachable, and the overall structure is stable and reliable.

1. Name of the product in this design: Graphical User Interface for Displaying Vehicle Repair Progress of Electronic Equipment. 2. Intended use of this design: for use in electronic devices. 3. The key design features of this product are its graphical user interface. 4. The image or photograph that best illustrates the design's key features: the front view. 5. Purpose of the graphical user interface: to display the vehicle repair progress. 6. Other situations requiring explanation: The "X" in the picture is used to represent Chinese characters, letters, or numbers.

The invention discloses an interactive Chinese character traceability and writing correction system, and belongs to the technical field of Chinese character education. Aiming at the problems of traceability staticization, correction simplification and path solidification of an existing tool, the technical scheme comprises the following steps: constructing a database of seven types of font evolution from oracle to regular script, and dynamically displaying font evolution by combining 3D modeling and AR rendering; multi-mode writing data are collected through a pressure sensing pen, an infrared camera and the like, and the AI model is corrected in real time from pressure, posture and structure dimensions; and on the basis of the user error type, related Chinese character traceability content is pushed by reinforcement learning and stepped practice is carried out, so that personalized path optimization is realized. The system can improve Chinese character meaning understanding depth, writing normalization and learning efficiency, is adaptive to scenes of basic education, calligraphy training and the like, and promotes Chinese character learning to be converted from passive cognition to active construction.

The invention belongs to the technical field of building heritage protection, and discloses an automatic building heritage protection device and a using method thereof.The automatic building heritage protection device comprises a sliding structure, the sliding structure is of a U-shaped structure, and a transmission groove shaped like a Chinese character'hui 'is formed in the middle of the inner wall of the sliding structure; a sliding structure, a suction cup, an underwater flaw detector and the like are arranged, in the using process, the sliding structure is clamped on the outer wall of the supporting rod, equipment is adsorbed to the outer wall of the supporting rod through the suction cup, the transmission crawler belt is driven to rotate along with starting of the motor, and the underwater flaw detector is arranged on the lower portion of the inner wall of one side of the transmission groove. The underwater flaw detector is driven to move up and down on the periphery of the supporting rod along with up-down movement of the sliding structure, the interior of the supporting rod is detected through the underwater flaw detector, the detection range is enlarged, the detection effect is improved, and use is convenient.

A method for extracting key contour points of Chinese characters based on key skeleton points and stroke width belongs to the field of computer and Chinese character vectorization, which comprises the following steps: inputting a single Chinese character picture, performing pretreatment to generate a binary image; extracting the skeleton of the Chinese character by using a skeleton extraction algorithm; further extracting key skeleton points of the Chinese character; obtaining the stroke width at each key skeleton point of the Chinese character; obtaining the contour points of the Chinese character by using a contour extraction algorithm; sequentially traversing all contour points of the Chinese character, calculating the distance from the current contour point to the nearest key skeleton point, calculating the distance threshold of the current nearest key skeleton point, judging whether the current contour point is a key contour point by comparing the distance from the current contour point to the nearest key skeleton point with the distance threshold, and recording the current contour point as a key contour point if the distance is less than the distance threshold. The application effectively improves the quality of Chinese character vectorization, maintains all detail features, effectively removes noise contour points and redundant contour points, and reduces the storage space size of the vectorized Chinese characters.

1. Name of this design product: Chinese Character Practice Board. 2. Purpose of this design: For handwriting practice. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The application provides an OCR text correction method and device. A correct probability of a Chinese character at each position in to-be-corrected text is obtained. A character shape structure word embedding vector of the Chinese character at each position in the to-be-corrected text is obtained. An input word embedding vector of the Chinese character at each position is calculated according to the word embedding vector corresponding to the Chinese character at each position in the to-be-corrected text, the correct probability and the character shape structure word embedding vector, and an input word embedding vector set is formed. The input word embedding vector set is input into a second encoder to form a coded input word embedding multi-dimensional vector. The coded input word embedding multi-dimensional vector is input into a correction layer to obtain corrected text. The correction layer is provided with a correction neural network formed by training of a Chinese corpus. The OCR text correction method and device provided by the application no longer selects a candidate word from an existing confusion set for correction, reduces the occurrence of missing words, and improves the accuracy of correction.

The utility model relates to a Chinese character'ri '-shaped tray with a reinforcing protection plate, which belongs to the technical field of logistics transportation and comprises a panel, pier feet are arranged on the lower end face of the panel, a first vertical plate and a second vertical plate are arranged on the lower end face of the pier feet, the first vertical plate is flush with the outer end faces of the pier feet at two ends, and the second vertical plate is shorter than the first vertical plate. According to the utility model, the length of the vertical plates is increased to ensure that the two ends of the rear part of the pallet on the goods shelf are supported by the track of the goods shelf, and meanwhile, the reinforcing protective plate is additionally arranged below the shortened transverse plate, so that the safety of the pallet on the goods shelf is improved, and the safety of the pallet on the goods shelf is improved. The supporting of the transverse plates and the stability of the whole structure are ensured, the stability of the tray is improved, the risk of goods collapse caused by bending deformation and cracking of the two first vertical plates due to bearing of the tray is effectively reduced, the tray better adapts to a goods shelf supporting structure, and the safety is improved.

1. Name of the designed product: pendant (series of big Chinese characters, high school plate of Kui star). 2. Use of the designed product: the designed product is used for wearing and decoration. 3. Design points of the designed product: combination of shape and pattern. 4. Picture or photo best indicating the design points: perspective view.

The invention discloses a calligraphy practice method and system based on a calligraphy practice effect of a user. The method comprises the following steps: collecting writing track data and writing statistical data in a calligraphy practice process of the user; based on the writing track data, extracting writing characteristics of the user in three dimensions of a font structure, pen wielding strength and writing rhythm, and fusing a quantitative index and a deep learning score to obtain a quality coefficient of each dimension; constructing a multi-dimensional capability vector and a capability time sequence of the user based on the quality coefficient; training a time sequence prediction model based on the ability time sequence and the writing statistical data; constructing a sample based on the writing statistical data, generating a prediction label by using the prediction model, and generating a symbolic rule for describing a relationship between the practice behavior and the ability change by using a symbolic regression method in a fitting manner; and for the candidate Chinese character set, predicting an expected capability improvement amount after practicing each Chinese character in combination with a symbol rule, calculating a comprehensive benefit value of each Chinese character by integrating the expected improvement amount and the current short plate weight of each dimension of the user, and selecting a target practicing character set to generate a personalized practicing task according to the comprehensive benefit value. According to the invention, accurate evaluation and personalized intelligent recommendation of calligraphy practice are realized.

The utility model discloses quantitative loading equipment. The quantitative loading equipment comprises a material distributing mechanism, a quantitative weighing mechanism and a material collecting and loading mechanism which are sequentially arranged from top to bottom, the quantitative weighing mechanism comprises a support frame and four bins which are arranged at intervals in a shape like a Chinese character'tian ', the four bins are fixed on the support frame, the lower part of each bin is provided with a discharge port, the discharge port is provided with a discharge gate, the peripheral wall of each bin is provided with a weighing sensor, and the weighing sensors are used for measuring the mass of materials in the bins; the material distributing mechanism is used for receiving materials conveyed by the feeding belt and distributing the materials to the four material bins, and the material collecting and loading mechanism is used for guiding the materials discharged by the material bins to the loading position. The quantitative loading equipment has enough buffer capacity under the condition that a huge material receiving buffer bin with a single buffer function does not need to be arranged, and rotary motion of a large-tonnage stock bin is avoided, so that the manufacturing cost and the energy consumption of the loading equipment are reduced, and the quantitative loading equipment has relatively high metering precision.

The invention discloses a clinical auxiliary normal delivery device which comprises an obstetric table composed of a backup plate, a lying plate and a base, a rotary thigh placing plate is installed at the top end of the lying plate, a shank placing plate is installed at the end of the thigh placing plate, a foot supporting plate is installed on the shank placing plate, and the foot supporting plate is connected with the foot supporting plate. An adjusting assembly is arranged between the foot supporting plate and the shank placing plate, a mounting frame arranged in a U shape is fixedly mounted at the top end of the lying plate, a pressing plate is slidably mounted in a U-shaped groove of the mounting frame, and first movable rods which penetrate through the two sides of the mounting frame and slide in the height direction of the mounting frame are fixedly connected to the two sides of the pressing plate; pull rods are rotationally mounted on the two sides of the lying plate through rotating shafts, torsional springs for resetting are mounted at the rotating shafts, and holding rods are fixedly connected to the top ends of the pull rods. The device can replace medical staff to conduct auxiliary pressing treatment on the abdomen of a puerpera, lochia discharge of the puerpera is facilitated, and meanwhile waste of medical resources can be avoided.

The utility model belongs to building industrialization technical field especially, and it is a kind of assembly and decoration integration light steel structure self-supporting integrated box type floor slab, it is characterized in that, including light steel frame, the group of few Chinese characters keel that is arranged in the internal cavity of this light steel frame, the upper integrated decorative cover plate that is covered in the outside upper of light steel frame, the lower integrated decorative cover plate that is covered in the outside lower of light steel frame, the heat preservation sound insulation board or extruded sheet that is set in the lower integrated decorative cover plate, the heat preservation sound insulation board that is set in the upper integrated decorative cover plate, the steel bearing plate that is set in the upper light steel frame.The utility model forms closed box body by cold-formed steel frame and double-layer cover plate, integrates heat preservation sound insulation layer inside, realizes 100% factory prefabrication, and this floor slab adapts robot automatic production, has the advantages such as light weight, high strength, energy saving, fast installation, is applicable to prefabricated building and green low-carbon building, civil building and industrial building.

The application belongs to the technical field of Chinese character image recognition, and particularly discloses a Chinese character image recognition method based on a four-corner number dictionary and related components. The method comprises the following steps: pre-processing an input Chinese character image to obtain skeleton information of a Chinese character to be recognized; performing four-corner number dictionary recognition on the stroke shape of the skeleton information to obtain corresponding four-corner numbers; calling the four-corner number dictionary to read homograph Chinese characters with the same four-corner numbers to obtain a homograph Chinese character set; when the number of Chinese characters in the homograph Chinese character set is one, outputting the unique Chinese character as a recognition result; when the number of Chinese characters in the homograph Chinese character set is within a first preset range, outputting a Chinese character with the highest confidence in the homograph Chinese character set as the recognition result; and when the number of Chinese characters in the homograph Chinese character set is within a second preset range, eliminating Chinese characters with inconsistent features in the homograph Chinese character set until the number of Chinese characters in the homograph Chinese character set is one or within the first preset range. The application has the advantage of quickly finding a correctly recognized target Chinese character from a homograph set of the four-corner number dictionary.

The invention discloses a hair body generation method and device based on a diffusion model. The method comprises the steps of obtaining a coding vector and semantic information of each Chinese character in a character library; training a diffusion model by taking the calligraphy image set of the general grass body as a training sample and combining the coding vector of each Chinese character as a priori condition to obtain a first-stage training result of the diffusion model; on the basis of the first-stage training result, a hair-body-based calligraphy image set serves as a training sample, semantic information of each Chinese character serves as a priori condition, a diffusion model is trained, and a second-stage training result of the diffusion model is obtained; and generating a hair body generation model based on the second-stage training result. According to the method, a cursive writing basic writing rule of each Chinese character is learned based on a first-stage training result of a diffusion model, and structure semantics, stroke details and style semantics of each Chinese character in a hair body are learned based on a second-stage training result, so that a hair body generation model can output high-quality hair body Chinese characters.

The application belongs to the field of smart grid and computer vision, and particularly relates to a power station wiring diagram text robust generalization detection and recognition method based on an improved SwinTextSpotter v2. The method comprises the following steps: step 1: inputting an image into a text detection and recognition network based on multi-modal learning for training and prediction, obtaining a shared feature map through a shared feature extraction backbone network, and further inputting the shared feature map into a text detection module to obtain a text detection result and a text feature map; step 2: inputting the text feature map into a visual feature extraction and prediction module to obtain a feature sequence, and then matching the predicted feature sequence with a canonical representation obtained by a character structure feature extraction and prediction module to obtain a recognition result; and the like. The application robustly improves the detection and recognition accuracy of the model for irregular text and Chinese character text, and improves the generalization performance of the text detection and recognition of various types of wiring diagrams.

The utility model discloses a moisture-proof micro-gap snap-together SPC stone crystal wall panel, which relates to the technical field of stone crystal wall panels. The moisture-proof micro-gap snap-together SPC stone crystal wall panel comprises a stone crystal wall panel and a clamping block. First clamping grooves and second clamping grooves are formed at both ends of the stone crystal wall panel, and the clamping block is in the shape of a Chinese character 'tu'. The clamping block is snap-connected with the first clamping groove and the second clamping groove. Sealing rubber rings in the shape of 'C' are fixedly connected to the left and right sides of the middle part of the clamping block, and the sealing rubber rings are snap-connected with the second clamping groove. Adjacent stone crystal wall panels are precisely spliced through a double-positioning structure of the Chinese character 'tu'-shaped clamping block with the first clamping groove and the second clamping groove. With the rounded corner design on the inner walls of the first clamping groove, the second clamping groove and the bottom of the clamping block, the installation friction resistance is reduced, the splicing alignment error is minimized, and the splicing gap is controlled within a micro-gap range that is visually negligible, solving the problem that the integrity of the wall surface is damaged due to obvious gaps in traditional snap-together splicing.

The utility model provides a portable engineering cost manual working hour recording device, which relates to the technical field of engineering cost, and comprises a fingerprint type attendance machine and a supporting mechanism, the supporting mechanism comprises a U-shaped supporting frame and a positioning frame shaped like a Chinese character'pi '; an inverted-U-shaped positioning frame which is pushed and positioned through a spring is mounted on the U-shaped supporting frame in a sliding manner; the U-shaped supporting frame is rotationally connected to the top end of the fingerprint type attendance machine shell; four positioning holes are symmetrically formed in the top part of the fingerprint type attendance machine shell; two longitudinally arranged inserting rods of a positioning frame shaped like a Chinese character'pi 'are inserted and matched with the four positioning holes in a selectable manner; two sliding sleeves shaped like a Chinese character'ri 'are symmetrically welded to the two ends of a transverse side rod of the positioning frame shaped like the Chinese character'pi'. The U-shaped supporting frame can be used as an inclined supporting mechanism of the fingerprint type attendance machine and also can be used as a handle of the fingerprint type attendance machine, so that the fingerprint type attendance machine has a dual-purpose use effect, and the effect is beneficial to simplifying the structure of the fingerprint type attendance machine and facilitating the miniaturization of the fingerprint type attendance machine.

The application provides a password generation method, device and equipment, and relates to the field of data processing. The password generation method comprises the following steps: obtaining preset input data, wherein the preset input data comprises a prompt word, and the prompt word comprises a Chinese character string; identifying whether the Chinese character string contains emotional segmentation words according to a preset emotion recognition model; if the Chinese character string contains emotional segmentation words, replacing the emotional segmentation words with corresponding characters; converting the characters in the Chinese character string except the emotional segmentation words into letters, and combining the corresponding characters of the emotional segmentation words to form a final password. According to the method, the final password is generated by converting the text, i.e. the prompt word, and the final password is a combination of characters and letters, so the security coefficient is high. Since there is a conversion relationship between the characters, the characters in the final password are not related to each other due to the complexity of the final password.

The application discloses an edge sealing arm frame of an automatic edge sealing machine, which comprises a support frame in the shape of Chinese character 'fang', a horizontal support arm is formed on the support frame, a vertical shaft sleeve is formed at the end of the support arm, a horizontal fixed support rod, a first movable support rod and a second movable support rod are inserted into the support frame, a connecting block is fixed at the middle part of the fixed support rod, the connecting block is fixed on the inner bottom surface of the support frame, the first movable support rod is located between the second movable support rod and the fixed support rod, a vertical screw rod and a guide column are fixed at one end of the fixed support rod close to the support arm, the lower ends of the screw rod and the guide column are fixed on a connecting plate through the first movable support rod and the second movable support rod, and the connecting plate is fixed on the inner lower bottom surface of the support frame.

The utility model relates to a silica gel foot pad compression deformation test device which comprises a rectangular bottom plate, a plurality of arrayed positioning concave holes are formed in the bottom plate, two transverse guide grooves are formed in the upper end faces of the left side and the right side of the bottom plate respectively, and the guide grooves are located between the positioning concave holes. U-shaped handle storage grooves are formed in the lower end faces of the left side and the right side of the bottom plate correspondingly, the handle storage grooves are located under the guide grooves, and U-shaped handles are inserted into the handle storage grooves; a rectangular pressing plate is arranged over the bottom plate, transverse insertion grooves right opposite to the guide grooves are formed in the two sides of the pressing plate respectively, a rectangular inlet is formed in the end, close to the middle of the pressing plate, of each transverse insertion groove, and compression grooves connected with the inlets are formed in the front side wall and the rear side wall of the upper portion of each transverse insertion groove respectively. According to the device, the compression amount of the silica gel foot pad is conveniently controlled, meanwhile, the plate for compressing the silica gel foot pad is convenient to mount and connect, and the compression deformation test of the silica gel foot pad is facilitated.

The application discloses a Chinese correction method and device. The application comprises: determining a correction scene according to an initial Chinese text to be corrected; constructing a sentence classification data set according to a Chinese training text corresponding to the correction scene, and constructing a sentence classifier by using the sentence classification data set; constructing a correction training model based on the sentence classifier, generating multi-path correction data according to a dictionary corresponding to the correction scene and the Chinese training text, and performing adaptive dynamic mask correction training on the correction training model by using the multi-path correction data to construct a Chinese correction model; and sending the initial Chinese text into the trained Chinese correction model to obtain a target Chinese text after correction. The application improves the semantic recognition ability and generalization ability of Chinese correction, reduces the training cost, and improves the correction accuracy, stability and reliability.