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Whole-process case management effects on mental state and selfcare ability in patients with liver cancer 被引量:1
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作者 Man-Di Ju Qin Qin Meng Li 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第3期833-841,共9页
BACKGROUND Regarding the incidence of malignant tumors in China,the incidence of liver cancer ranks fourth,second only to lung,gastric,and esophageal cancers.The case fatality rate ranks third after lung and cervical ... BACKGROUND Regarding the incidence of malignant tumors in China,the incidence of liver cancer ranks fourth,second only to lung,gastric,and esophageal cancers.The case fatality rate ranks third after lung and cervical cancer.In a previous study,the whole-process management model was applied to patients with breast cancer,which effectively reduced their negative emotions and improved treatment adherence and nursing satisfaction.METHODS In this single-center,randomized,controlled study,60 randomly selected patients with liver cancer who had been admitted to our hospital from January 2021 to January 2022 were randomly divided into an observation group(n=30),who received whole-process case management on the basis of routine nursing mea-sures,and a control group(n=30),who were given routine nursing measures.We compared differences between the two groups in terms of anxiety,depression,the level of hope,self-care ability,symptom distress,sleep quality,and quality of life.RESULTS Post-intervention,Hamilton anxiety scale,Hamilton depression scale,memory symptom assessment scale,and Pittsburgh sleep quality index scores in both groups were lower than those pre-intervention,and the observation group had lower scores than the control group(P<0.05).Herth hope index,self-care ability assessment scale-revision in Chinese,and quality of life measurement scale for patients with liver cancer scores in both groups were higher than those pre-intervention,with higher scores in the observation group compared with the control group(P<0.05).CONCLUSION Whole-process case management can effectively reduce anxiety and depression in patients with liver cancer,alleviate symptoms and problems,and improve the level of hope,self-care ability,sleep quality,and quality of life,as well as provide feasible nursing alternatives for patients with liver cancer. 展开更多
关键词 Liver cancer Mental state Self-care ability whole-process case management Life quality NURSING
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On traceable iterated line graph and hamiltonian path index
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作者 NIU Zhao-hong XIONG Li-ming YANG Wei-hua 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2024年第2期239-252,共14页
Xiong and Liu[21]gave a characterization of the graphs G for which the n-iterated line graph L^(n)(G)is hamiltonian,for n≥2.In this paper,we study the existence of a hamiltonian path in L^(n)(G),and give a characteri... Xiong and Liu[21]gave a characterization of the graphs G for which the n-iterated line graph L^(n)(G)is hamiltonian,for n≥2.In this paper,we study the existence of a hamiltonian path in L^(n)(G),and give a characterization of G for which L^(n)(G)has a hamiltonian path.As applications,we use this characterization to give several upper bounds on the hamiltonian path index of a graph. 展开更多
关键词 iterated line graph TRACEABLE hamiltonian index hamiltonian path index
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A GAN-EfficientNet-Based Traceability Method for Malicious Code Variant Families
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作者 Li Li Qing Zhang Youran Kong 《Computers, Materials & Continua》 SCIE EI 2024年第7期801-818,共18页
Due to the diversity and unpredictability of changes in malicious code,studying the traceability of variant families remains challenging.In this paper,we propose a GAN-EfficientNetV2-based method for tracing families ... Due to the diversity and unpredictability of changes in malicious code,studying the traceability of variant families remains challenging.In this paper,we propose a GAN-EfficientNetV2-based method for tracing families of malicious code variants.This method leverages the similarity in layouts and textures between images of malicious code variants from the same source and their original family of malicious code images.The method includes a lightweight classifier and a simulator.The classifier utilizes the enhanced EfficientNetV2 to categorize malicious code images and can be easily deployed on mobile,embedded,and other devices.The simulator utilizes an enhanced generative adversarial network to simulate different variants of malicious code and generates datasets to validate the model’s performance.This process helps identify model vulnerabilities and security risks,facilitating model enhancement and development.The classifier achieves 98.61%and 97.59%accuracy on the MMCC dataset and Malevis dataset,respectively.The simulator’s generated image of malicious code variants has an FID value of 155.44 and an IS value of 1.72±0.42.The classifier’s accuracy for tracing the family of malicious code variants is as high as 90.29%,surpassing that of mainstream neural network models.This meets the current demand for high generalization and anti-obfuscation abilities in malicious code classification models due to the rapid evolution of malicious code. 展开更多
关键词 Malicious code variant traceability feature reuse lightweight neural networks code visualization attention mechanism
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Potentials and Challenges of Carbon Knowledge Graph in Sustainable Textile Production for Carbon Traceability:A Review
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作者 BAO Jinsong WU Tao LI Jie 《Journal of Donghua University(English Edition)》 CAS 2024年第4期349-364,共16页
Textile production has received considerable attention owing to its significance in production value,the complexity of its manufacturing processes and the extensive reach of its supply chains.However,textile industry ... Textile production has received considerable attention owing to its significance in production value,the complexity of its manufacturing processes and the extensive reach of its supply chains.However,textile industry consumes substantial energy and materials and emits greenhouse gases that severely harm the environment.In addressing this challenge,the concept of sustainable production offers crucial guidance for the sustainable development of the textile industry.Low-carbon manufacturing technologies provide robust technical support for the textile industry to transition to a low-carbon model by optimizing production processes,enhancing energy efficiency and minimizing material waste.Consequently,low-carbon manufacturing technologies have gradually been implemented in sustainable textile production scenarios.However,while research on low-carbon manufacturing technologies for textile production has advanced,these studies predominantly concentrate on theoretical methods,with relatively limited exploration of practical applications.To address this gap,a thorough overview of carbon emission management methods and tools in textile production,as well as the characteristics and influencing factors of carbon emissions in key textile manufacturing processes is presented to identify common issues.Additionally,two new concepts,carbon knowledge graph and carbon traceability,are introduced,offering strategic recommendations and application directions for the low-carbon development of sustainable textile production.Beginning with seven key aspects of sustainable textile production,the characteristics of carbon emissions and their influencing factors in key textile manufacturing process are systematically summarized.The aim is to provide guidance and optimization strategies for future emission reduction efforts by exploring the carbon emission situations and influencing factors at each stage.Furthermore,the potential and challenges of carbon knowledge graph technology are summarized in achieving carbon traceability,and several research ideas and suggestions are proposed. 展开更多
关键词 sustainable textile production carbon knowledge graph carbon traceability low-carbon development emission reduction
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Research Progress and Prospects of Traceability Methods of Organic Matter in Lake Sediment
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作者 Jing LIU Zhuolin LI Yousong MA 《Meteorological and Environmental Research》 2024年第4期52-53,57,共3页
Organic matter in sediment is an important carrier of energy and material circulation in ecosystems,and also provides an important place for the accumulation of nutrient salts.The study of its composition,structure an... Organic matter in sediment is an important carrier of energy and material circulation in ecosystems,and also provides an important place for the accumulation of nutrient salts.The study of its composition,structure and characteristics is of great importance for the study of the geochemical cycle of sediment in water environment.Identifying the source of organic matter in sediment and mastering its temporal and spatial distribution characteristics are important ways to reveal the migration and transformation law of pollutants,which is conducive to controlling nutrient load from the source and providing strong technical support for the fine management of water environment. 展开更多
关键词 SEDIMENT Organic matter traceability
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Research of Blockchain Technology in the Traceability of Characteristic Agricultural Products
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作者 Qian Zhang 《Journal of Electronic Research and Application》 2024年第3期60-65,共6页
With the increasingly prominent problem of food safety,the quality traceability of characteristic agricultural products has become a pressing issue.This study focuses on the application of blockchain technology in the... With the increasingly prominent problem of food safety,the quality traceability of characteristic agricultural products has become a pressing issue.This study focuses on the application of blockchain technology in the traceability of characteristic agricultural products,aiming to explore its potential and practical value in improving the efficiency and transparency of the traceability system of agricultural products.Through the combination of case analysis and model construction,a blockchain-based traceability system for characteristic agricultural products was established.The results showed that the traceability system could effectively record the whole process information of agricultural products from production and processing to sales,and greatly improve the immutability and traceability of data.Lastly,this paper also points out that the use of blockchain technology can improve the market trust in characteristic agricultural products,provide consumers with authentic and reliable product information,and provide new technical means for the quality management of agricultural products. 展开更多
关键词 Blockchain technology Characteristic agricultural products traceability system Data immutability Market trust
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Application of Blockchain Sharding Technology in Chinese Medicine Traceability System 被引量:1
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作者 Fuan Xiao Tong Lai +4 位作者 Yutong Guan Jiaming Hong Honglai Zhang Guoyu Yang Zhengfei Wang 《Computers, Materials & Continua》 SCIE EI 2023年第7期35-48,共14页
Traditional Chinese Medicine(TCM)is one of the most promising programs for disease prevention and treatment.Meanwhile,the quality of TCM has garnered much attention.To ensure the quality of TCM,many works are based on... Traditional Chinese Medicine(TCM)is one of the most promising programs for disease prevention and treatment.Meanwhile,the quality of TCM has garnered much attention.To ensure the quality of TCM,many works are based on the blockchain scheme to design the traceability scheme of TCM to trace its origin.Although these schemes can ensure the integrity,sharability,credibility,and immutability of TCM more effectively,many problems are exposed with the rapid growth of TCM data in blockchains,such as expensive overhead,performance bottlenecks,and the traditional blockchain architecture is unsuitable for TCM data with dynamic growth.Motivated by the aforementioned problems,we propose a novel and lightweight TCM traceability architecture based on the blockchain using sharding(LBS-TCM).Compared to the existing blockchain-based TCM traceability system,our architecture utilizes sharding to develop a novel traceability mechanism that supports more convenient traceability operations for TCM requirements such as uploading,querying,and downloading.Specifically,our architecture consists of a leader shard blockchain layer as its main component,which employs a sharding mechanism to conveniently TCM tracing.Empirical evaluations demonstrated that our architecture showed better performance in many aspects compared to traditional blockchain architectures,such as TCM transaction processing,TCM transaction querying,TCM uploading,etc.In our architecture,tracing TCM has become a very efficient operation,which ensures the quality of TCM and provides great convenience for subsequent TCM analysis and retrospective research. 展开更多
关键词 Blockchain sharding traceability traditional chinese medicine
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Cross-Domain Data Traceability Mechanism Based on Blockchain
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作者 Shoucai Zhao Lifeng Cao +2 位作者 Jinhui Li Jiling Wan Jinlong Bai 《Computers, Materials & Continua》 SCIE EI 2023年第8期2531-2549,共19页
With the application and development of blockchain technology,many problems faced by blockchain traceability are gradually exposed.Such as cross-chain information collaboration,data separation and storage,multisystem,... With the application and development of blockchain technology,many problems faced by blockchain traceability are gradually exposed.Such as cross-chain information collaboration,data separation and storage,multisystem,multi-security domain collaboration,etc.To solve these problems,it is proposed to construct trust domains based on federated chains.The public chain is used as the authorization chain to build a cross-domain data traceability mechanism applicable to multi-domain collaboration.First,the architecture of the blockchain cross-domain model is designed.Combined with the data access strategy and the decision mechanism,the open and transparent judgment of cross-domain permission and cross-domain identity authentication is realized.And the public chain consensus node election mechanism is realized based on PageRank.Then,according to the characteristics of a nonsingle chain structure in the process of data flow,a data retrievalmechanism based on a Bloom filter is designed,and the cross-domain traceability algorithm is given.Finally,the safety and effectiveness of the traceability mechanism are verified by security evaluation and performance analysis. 展开更多
关键词 Cross-domain data traceability blockchain bloom filter
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Smart Contract to Traceability of Food Social Selling
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作者 Cristian Valencia-Payan JoséFernando Grass-Ramírez +1 位作者 Gustavo Ramirez-Gonzalez Juan Carlos Corrales 《Computers, Materials & Continua》 SCIE EI 2023年第3期4703-4728,共26页
Traditionally,food sustainability has been considered solely in the stage of agricultural production.However,globalization,the expansion of the food production industry,and the emergence of supermarket chains that con... Traditionally,food sustainability has been considered solely in the stage of agricultural production.However,globalization,the expansion of the food production industry,and the emergence of supermarket chains that control the retail food market require specific significant changes in supply chains in the food sector and,therefore,we need to address the economic,social,and environmental impacts of these events.On the other hand,social selling has increased rapidly in recent years,with a further boom,following current events related to the coronavirus disease(COVID-19).This explosion of social sales,where there are usually no control and regulation entities,can bring problems associated with mishandling items.In this paper,we expose how Blockchain technology supports the traceability of social sales by validating the data provided by the chain participants such as digital health passports,production and transport data in the sale process;the proposed solution generates recommendations on productmanagement considering the agreements previously made by the network actors.To evaluate the proposed smart contracts,we useHyperledger Caliper,obtaining an average throughput of 12.6 transactions per second and an average latency of 0.3 s for the asset update process.We also use a study case to evaluate the proposed project platform’s selling-transport stage using Internet of Things(IoT)sensors. 展开更多
关键词 Blockchain reliability smart contracts social selling traceability artisan sweets
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Impacts of Transparency and Traceability on Fashion Supply Chain System
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作者 Laiker Aakanksha Muthusamy Aravendan 《Intelligent Information Management》 2023年第3期100-119,共20页
The level of fashion consumer awareness and communication regarding sustainable consumption is rising. Organizations are working to provide clarity and guidance on fashion consumption. Brands are experimenting with ne... The level of fashion consumer awareness and communication regarding sustainable consumption is rising. Organizations are working to provide clarity and guidance on fashion consumption. Brands are experimenting with new materials and supply chain strategies, and suppliers are improving the manufacturing processes and quality of products. However, given the size and complexity of the industrial process, these efforts are not adequate in ensuring a sustainable fashion supply chain. Transparency and traceability in the fashion supply chain are needed to improve the fashion industry by supporting sustainable and ethical practices in the apparel supply chain. Key gaps include a lack of comprehensive and transparent information about how, where, and by whom materials are sourced, processed, and assembled;a lack of transparency in the supply chain practices and procedures affects the environment, working conditions, and human health. The industry has to build the capacity to manage its supply chain, more effectively and responsibly, by improving transparency and traceability as the top goals. So, in this context, the main purpose of this research paper is to study the impacts of transparency and traceability on the dimensions of sustainability in fashion supply chain. The researchers have applied descriptive research methods in which secondary data are collected and analyzed through a literature review of peer-reviewed research papers and the primary data are collected through the survey method by distributing a semi structured questionnaire. The data collected are analyzed using statistical tools and techniques. Finally, the results are discussed and presented. 展开更多
关键词 Environment Fashion Supply Chain SUSTAINABILITY TRANSPARENCY traceability
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ChainApparel: A Trustworthy Blockchain and IoT-Based Traceability Framework for Apparel Industry 4.0
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作者 Muhammad Shakeel Faridi Saqib Ali +2 位作者 Guojun Wang Salman Afsar Awan Muhammad Zafar Iqbal 《Computers, Materials & Continua》 SCIE EI 2023年第11期1837-1854,共18页
Trustworthiness and product traceability are essential factors in the apparel industry 4.0 for establishing successful business relationships among stakeholders such as customers,manufacturers,suppliers,and consumers.... Trustworthiness and product traceability are essential factors in the apparel industry 4.0 for establishing successful business relationships among stakeholders such as customers,manufacturers,suppliers,and consumers.Each stakeholder has implemented different technology-based systems to record and track product transactions.However,these systems work in silos,and there is no intra-system communication,leading to a lack of complete supply chain traceability for all apparel stakeholders.Moreover,apparel stakeholders are reluctant to share their business information with business competitors;thus,they involve third-party auditors to ensure the quality of the final product.Furthermore,the apparel manufacturing industry faces challenges with counterfeit products,making it difficult for consumers to determine the authenticity of the products.Therefore,in this paper,a trustworthy apparel product traceability framework called ChainApparel is developed using the Internet of Things(IoT)and blockchain to address these challenges of authenticity and traceability of apparel products.Specifically,multiple smart contracts are designed and developed for registration,process execution,audit,fault,and product traceability to authorize,validate,and trace every business transaction among the apparel stakeholders.Further,the real-time performance analysis of ChainApparel is carried out regarding transaction throughput and latency by deploying the compute nodes at different geographical locations using Hyperledger Fabric.The results conclude that ChainApparel accomplished significant performance under diverse workloads while ensuring complete traceability along the complex supply chain of the apparel industry.Thus,the ChainApparel framework helps make the apparel product more trustworthy and transparent in the market while safeguarding trust among the industry stakeholders. 展开更多
关键词 Blockchain smart contracts hyperledger fabric Internet of Things traceability apparel industry 4.0
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Traceability Technology of DC Electric Energy Metering for On-Site Inspection of Chargers
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作者 Hua Li Dezhi Xiong Zhi Wang 《Energy Engineering》 EI 2023年第3期715-727,共13页
The on-site inspection of high-power DC chargers results in new DC high-current measurement and DC energy traceability system requirements.This paper studies the traceability technology of electric energy value for au... The on-site inspection of high-power DC chargers results in new DC high-current measurement and DC energy traceability system requirements.This paper studies the traceability technology of electric energy value for automotive high-power DC chargers,including:(1)the traceability method of the built-in DC energy meter and shunt of the charger;(2)precision DC high current and small precision DC voltage output and measurement technology.This paper designs a 0.1 mA∼600 A DC high current measurement system and proposes a 0.005 level DC powermeasurement traceability system.The uncertainty evaluation experiment of theDC powermeasurement calibration system and the high-power DC charger’s on-site calibration experiment results verify the method’s effectiveness and feasibility in this paper.The experimental results show that the combined standard uncertainty of the DC power metering verification system can be 0.0451%. 展开更多
关键词 DC electric energy measurement CHARGER traceability CALIBRATION
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Path Breakthrough of Medical Humanities Education From the Perspective of“All-Staff,Whole-Process,and All-Round Education”
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作者 Li Ruoxue Zhang Jun +1 位作者 Jiang Li Jiang Xianwen 《Contemporary Social Sciences》 2023年第4期142-155,共14页
Medical education is an important cornerstone for the development of healthcare,and medical humanities education,as an integral part of medical education,plays an irreplaceable role in cultivating people’s health gua... Medical education is an important cornerstone for the development of healthcare,and medical humanities education,as an integral part of medical education,plays an irreplaceable role in cultivating people’s health guardians with high medical ethics.We adopted the method of stratified random sampling to select 309 students and 107 faculty members from three independent medical colleges in Sichuan province as the research subjects and distributed questionnaire surveys investigating in three dimensions:overall cognition of medical humanities,evaluation of medical humanistic qualities,and the current situation of medical humanities education,supplemented by an in-depth literature review and interviews with subject matter experts.We found that“tech-centrism”still has a great influence,the self-evaluation of medical students’humanistic quality is generally not high,the educational concept of“emphasizing professional skills over morality”of faculty and staff is still quite prevalent,and there is still the“last mile”phenomenon in medical humanities education.In order to promote the integrated development of“new medicine”and“new liberal arts”and break the barriers of“tech-centrism”and“instrumental rationality,”it is necessary to change the educational concept and strengthen the education of all employees,break through the bottleneck of internships and strengthen the whole process of education,integrate educational resources and strengthen all-round education,improve the incentive mechanisms,strengthen the assessment methods,and provide Chinese wisdom and Chinese solutions for the development of medical humanities education. 展开更多
关键词 all-staff whole-process and all-round medical humanities education thorough the people’s health tech-centrism
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Research on Welding Quality Traceability Model of Offshore Platform Block Construction Process
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作者 Jinghua Li Wenhao Yin +1 位作者 Boxin Yang Qinghua Zhou 《Computer Modeling in Engineering & Sciences》 SCIE EI 2023年第1期699-730,共32页
Quality traceability plays an essential role in assembling and welding offshore platform blocks.The improvement of the welding quality traceability system is conducive to improving the durability of the offshore platf... Quality traceability plays an essential role in assembling and welding offshore platform blocks.The improvement of the welding quality traceability system is conducive to improving the durability of the offshore platform and the process level of the offshore industry.Currently,qualitymanagement remains in the era of primary information,and there is a lack of effective tracking and recording of welding quality data.When welding defects are encountered,it is difficult to rapidly and accurately determine the root cause of the problem from various complexities and scattered quality data.In this paper,a composite welding quality traceability model for offshore platform block construction process is proposed,it contains the quality early-warning method based on long short-term memory and quality data backtracking query optimization algorithm.By fulfilling the training of the early-warning model and the implementation of the query optimization algorithm,the quality traceability model has the ability to assist enterprises in realizing the rapid identification and positioning of quality problems.Furthermore,the model and the quality traceability algorithm are checked by cases in actual working conditions.Verification analyses suggest that the proposed early-warningmodel for welding quality and the algorithmfor optimizing backtracking requests are effective and can be applied to the actual construction process. 展开更多
关键词 Quality traceability model block construction process welding quality management long short-term memory quality data backtracking query optimization algorithm
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论预制菜的安全追溯体系 被引量:2
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作者 陈秀萍 李志明 《保鲜与加工》 CAS 北大核心 2024年第4期71-75,共5页
预制菜行业发展迅速,但与之配套的安全追溯体系却未能及时建立。实践中,预制菜的安全追溯体系面临着主体分工不明确,追溯范围不清晰以及识别技术不统一等问题。为了预制菜行业的可持续发展,实现预制菜去向可追、来源可查、责任可定,有... 预制菜行业发展迅速,但与之配套的安全追溯体系却未能及时建立。实践中,预制菜的安全追溯体系面临着主体分工不明确,追溯范围不清晰以及识别技术不统一等问题。为了预制菜行业的可持续发展,实现预制菜去向可追、来源可查、责任可定,有必要建立起预制菜的安全追溯体系。分析了预制菜行业的食品安全问题,总结了现行食品安全追溯体系的现状与不足,并提出了完善预制菜安全追溯体系的路径,指出应在食品安全法律规范的基础上,明确预制菜安全追溯体系的追溯主体、追溯范围和识别技术,以期推动预制菜行业健康发展,使预制菜吃得放心,用得安心。 展开更多
关键词 预制菜 食品安全追溯 追溯体系 追溯技术
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Application of Whole-Process Management in Day Surgery for Endometrial Polyp
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作者 Min Xia Zhiqin Yin 《Journal of Clinical and Nursing Research》 2023年第4期51-56,共6页
Objective:To explore the effect of whole-process management model in nursing management of endometrial polyp day surgery.Methods:266 patients that underwent endometrial polyp day surgery from January to December 2022 ... Objective:To explore the effect of whole-process management model in nursing management of endometrial polyp day surgery.Methods:266 patients that underwent endometrial polyp day surgery from January to December 2022 were selected for this study,and they were separated into an observation group(131 patients)and a control group(135 patients);the clinical data of the two groups were compared.Results:After intervention,the scores of Hamilton Anxiety Scale(HAM-A)of the patients in the observation group were lower than those in the control group(P<0.05).The rate of postoperative complications in the observation group was lower than that in the control group(P<0.05),and the satisfaction degree of the patients in the observation group was higher than that in the control group(P<0.05).Conclusion:The application of the whole-course management model in endometrial polyp day surgery can alleviate patients’anxiety,ensure the quality and safety of day surgery nursing,and improve patients’satisfaction. 展开更多
关键词 whole-process management Endometrial polyp Day surgery Nursing safety
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Analysis on Classified Storage and Traceability of Construction Project Archives
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作者 Jiali Dai 《Journal of Architectural Research and Development》 2023年第3期51-57,共7页
With the development and progress of economic construction and market economy,urban construction is also developing rapidly.In the field of construction engineering,a large number of construction engineering files are... With the development and progress of economic construction and market economy,urban construction is also developing rapidly.In the field of construction engineering,a large number of construction engineering files are constantly being produced and accumulated.Therefore,the role of file management is becoming more and more important.The archives are the true records of the whole process of project construction,including the information on the whole process from project design to completion,and are also the main basis for operation management after project delivery.However,there are many aspects to construction project archives,and there are many problems.Nowadays,the classification and preservation of archives are receiving more and more attention.In this article,the origin and development history of construction project archives is first expounded,and its attributes and importance are analyzed.Secondly,the differences between ancient and modern archives management are compared,and at the same time suggestions on improving the archives’traceability system,strengthening the use of archives,and establishing and improving archives management are given.In this paper,we summarize the problems in archives sorting and put forward specific solutions to improve the standardization and systematic management of archives work and enhance the authenticity and integrity of construction project archives. 展开更多
关键词 Construction project archives Archives management Classification and storage traceability
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Human Rights in China:Exploration and Development of Whole-process People’s Democracy
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作者 李君如 《The Journal of Human Rights》 2023年第4期709-721,共13页
Whole-process people’s democracy represents a new exploration of socialism with Chinese characteristics for a new era as well as a novel and important method for protecting the human rights of the Chinese people.It i... Whole-process people’s democracy represents a new exploration of socialism with Chinese characteristics for a new era as well as a novel and important method for protecting the human rights of the Chinese people.It is conducive to solving a multitude of problems hindering the protection of civil rights and political rights.The greatest highlight of whole-process people’s democracy is that the people are the masters of their own country and exercise the power to govern the state through“extensive participation and consultation.”China’s experience and approaches in advancing whole-process people’s democracy provide a reference for other countries. 展开更多
关键词 whole-process people’s democracy human rights in China the 20th National Congress of the Communist Party of China
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具有高价值密度的农业物联网数据区块链压缩存储方案 被引量:3
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作者 景旭 石引娣 《农业工程学报》 EI CAS CSCD 北大核心 2024年第2期273-282,共10页
针对现有区块链物联网体系主要采用链上存储摘要链下保留原始数据的存储方式中链上无法直接获得真实数据的问题,该研究提出了一种具有高价值密度的农业物联网数据区块链压缩存储方案。首先,边缘服务器将收集的同一批数据聚合到同一批事... 针对现有区块链物联网体系主要采用链上存储摘要链下保留原始数据的存储方式中链上无法直接获得真实数据的问题,该研究提出了一种具有高价值密度的农业物联网数据区块链压缩存储方案。首先,边缘服务器将收集的同一批数据聚合到同一批事务中;其次,设计离群值可处理的自适应有损压缩方法,在满足用户保真度要求的前提下降低数据冗余;最后,压缩数据上链,实现区块链上物联网数据的高价值密度存储。与现有方案相比,该方案能提高链上存储真实物联网数据的效率。试验结果表明,在使用自适应压缩方法压缩数据时,针对不同的数据集会自适应选取k值,在满足用户重建精度的前提下,获得良好压缩效果,减少链上存储空间,提高了数据价值密度;相对于风速之类频率较高的数据,温湿度、二氧化碳等变化频率较低的数据可以获得较高的压缩比;当假设正常数据压缩比为10:1时,该方案可节省约85%的链上存储空间,相应的价值密度提高了约85%。该研究可为农产品溯源过程中的物联网数据高效存储提供解决方案,为实现分布式农业物联网数据压缩存储提供技术支持。 展开更多
关键词 数据 压缩 区块链 农产品溯源 链上存储 物联网
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基于文献计量学分析的全球食品追溯研究进展 被引量:1
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作者 张勤 刘宇静 +1 位作者 左婵媛 邹燕 《食品科学》 EI CAS CSCD 北大核心 2024年第3期275-284,共10页
食品追溯是确保食品质量与安全的重要手段,本文对2001—2022年科学引文索引数据库收录的食品追溯论文进行计量分析和可视化呈现,以便为国内食品追溯的进一步研究和开发提供参考。结果发现:全球共有80个国家/地区、1 136个研究机构、3 02... 食品追溯是确保食品质量与安全的重要手段,本文对2001—2022年科学引文索引数据库收录的食品追溯论文进行计量分析和可视化呈现,以便为国内食品追溯的进一步研究和开发提供参考。结果发现:全球共有80个国家/地区、1 136个研究机构、3 020名作者、255种期刊开展了食品追溯研究,跨国家/地区合作、多学科交叉融合频繁;中国、意大利、美国、西班牙、荷兰等表现出较大的研究体量与较强的合作关系,意大利、美国、荷兰、西班牙食品追溯研究的总体质量较高,研究领域集中在食品科学技术、化学、农业、工程学上,在计算机科学、生态学与环境学、饮食与营养学领域也有较多研究成果。研究热点有食品质量与安全、食品供应链管理、原产地、追溯技术、食品鉴别与认证、支付意愿等。未来学术前沿将围绕基于工业4.0的智能食品追溯系统、以全基因组学和下一代测序技术为代表的食品真实性检测鉴别技术以及食品追溯系统主体参与动力、利益博弈和溢价支付的机制3个方面展开。 展开更多
关键词 食品追溯 食品安全 学术前沿 文献计量学 科学引文索引
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