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6 results about "Iso standards" patented technology

A generative fuzzing method for PDF readers

The application relates to the technical field of network security and software testing, and discloses a generative fuzzy testing method for a PDF reader, which has the technical effects of reducing the cost of syntax modeling, improving the coverage of the model, and effectively suppressing the hallucination of a large language model by designing a polymorphic object syntax reduction template and automatically constructing a POG reduction library by combining a retrieval enhancement generation technology; wherein the POG template encodes the complex semantics of the PDF specification into a machine-interpretable structured skeleton by introducing inheritance, polymorphism and dynamic generation instruction fields; the RAG technology combines the specification text, the table and the prior knowledge of the large model to automatically extract accurate object definitions from the ISO standard document; and finally, the POG reduction library with high coverage and high fidelity is constructed by combining the breadth-first iterative extraction and manual checking, thereby fundamentally solving the problems of high cost of traditional manual modeling, poor structural consistency of the deep learning method and hallucination caused by direct generation of the large language model.
Owner:BEIJING UNIV OF POSTS & TELECOMM

A method for automatically generating a manual attestation file for a document management system

This invention discloses a method for automatically generating evidentiary documents for a document management system manual. First, the chapter requirements of the evidentiary document to be generated are obtained, and relevant knowledge is retrieved from a corpus containing ISO standard texts, organizational background documents, and historical evidentiary documents. A chapter-entity-relationship knowledge graph is constructed by parsing ISO standard clauses. A three-level progressive retrieval strategy is used to match specific instance information from the corpus, and the standard requirements and instance information are integrated to generate dynamic prompt words. After generating preliminary content using a large language model, a multi-level rule-based verification system is used to verify grammatical format, standard compliance, and organizational adaptability layer by layer. If a verification fails, a feedback loop is triggered for correction. Key corpora are stored on a blockchain to ensure the traceability of the generated content. Finally, revision opinions from reviewers are obtained and feedback is used to optimize the generation strategy. This invention achieves automated and compliant generation of evidentiary documents, significantly improving generation efficiency and content quality.
Owner:CHINA THREE GORGES CORPORATION

System and method for blockchain-based verification of certificates of authentication in supply chain management

A blockchain-based system and method for verifying Certificates of Authentication (COAs) in supply chain management is disclosed, adhering to ASTM D8558-24 guidelines and relevant ISO standards including ISO / IEC 27001, ISO 28000, and ISO 9001. The system utilizes a custom Layer 1 (L1) blockchain built on the Avalanche platform, implementing a dual-token model to create, manage, and verify COAs as Non-Fungible Tokens (NFTs). It features AI-powered authentication, enhanced security measures, and a data marketplace for monetizing authenticated supply chain data. The system offers improved scalability, customization for various industries, and facilitates both B2B and B2C transactions. With cross-chain communication capabilities and integration with existing supply chain systems, the invention addresses environmental and social considerations while providing comprehensive interoperability. This solution aims to revolutionize supply chain authentication, offering enhanced transparency, efficiency, and trust in global trade, all while maintaining compliance with international standards for security, quality, and supply chain management.
Owner:CONER MICHAEL +1

Semantic driving and multi-modal retrieval-based mechanical assembly generation method

PendingCN121562385AConfiguration CADBiological modelsDocument modelEngineering
The invention discloses a mechanical assembly generation method based on semantic driving and multi-modal retrieval, and belongs to the field of computer aided design. The method comprises the following steps: constructing a multi-modal data set containing a mechanical part geometric file, B-Rep model data, a professional and amateur dual-channel description text and ISO standard information; in combination with RAG and CLIP retrieval strategies, a natural language instruction of a user is accurately mapped into candidate three-dimensional parts; an assembly relation and a pose matrix between the parts are calculated through a JoinAble assembly inference engine; automatic visualization generation of the assembly is realized by means of a three-dimensional software API, and key engineering indexes are controlled. The method reduces the professional threshold of mechanical design, simplifies the traditional tedious process, ensures that the assembly meets the engineering standard and physical rationality, and solves the problems that the traditional CAD depends on professional knowledge and the natural language intention is difficult to convert in the prior art.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Coating composition and coating system

A coating composition comprising: a polyester material, and a benzoguanamine or a derivative thereof wherein the coating composition is substantially free of bisphenol A (BPA), bisphenol F (BPF), bisphenol A diglycidyl ether (BADGE), and bisphenol F diglycidyl ether (BFDGE), and wherein the coating composition has a flexibility of at least 20 mm when cured, and wherein the coating composition is substantially free of bisphenol A (BPA), bisphenol F (BPF), bisphenol A diglycidyl ether (BADGE) and bisphenol F diglycidyl ether (BFDGE). The present invention relates to a scratch-resistant film having a scratch resistance of at least 700 g, measured according to ISO Standard 1518-1: 20 11, according to the tensile and retensile test method and treatment in a 1% salt (NaCl) tap water solution for 60 minutes at 130 DEG C, and a scratch resistance of at least 700 g, measured according to ISO Standard 1518-1: 20 11.
Owner:PPG INDUSTRIES OHIO INC

Special silicon sand for cement strength detection

This invention discloses a special silica sand for cement strength testing, belonging to the technical field of standard materials for cement performance testing. It is suitable for non-ISO method cement mortar strength testing, requiring no additional components and made solely from natural siliceous mineral particles through physical processing. This silica sand achieves uniform performance through precise control of chemical composition, continuous three-gradation particle design, physical properties, and stability indicators, relying on a fully physical preparation process, thus avoiding the defects of existing technologies and the limitations of ISO standards. Through quantitative indicators and dedicated testing methods, it optimizes particle sphericity, surface roughness, and packing characteristics, improving the interfacial bonding force with cement paste and the density of the mortar. This invention solves the problems of large testing deviations, poor adaptability, and unstable performance of existing silica sand, making it suitable for testing various grades of cement, significantly improving the accuracy and repeatability of test results, facilitating industrial production and control, and showing broad application prospects.
Owner:XIAMEN YUANLIDA FOOD IMP & EXP CO LTD