With the development of digital information technologies,robust watermarking framework is taken into real consideration as a challenging issue in the area of image processing,due to the large applicabilities and its u...With the development of digital information technologies,robust watermarking framework is taken into real consideration as a challenging issue in the area of image processing,due to the large applicabilities and its utilities in a number of academic and real environments.There are a wide range of solutions to provide image watermarking frameworks,while each one of them is attempted to address an efficient and applicable idea.In reality,the traditional techniques do not have sufficient merit to realize an accurate application.Due to the fact that the main idea behind the approach is organized based on contourlet representation,the only state-of-the-art materials that are investigated along with an integration of the aforementioned contourlet representation in line with watermarking framework are concentrated to be able to propose the novel and skilled technique.In a word,the main process of the proposed robust watermarking framework is organized to deal with both new embedding and de-embedding processes in the area of contourlet transform to generate watermarked image and the corresponding extracted logo image with high accuracy.In fact,the motivation of the approach is that the suggested complexity can be of novelty,which consists of the contourlet representation,the embedding and the corresponding de-embedding modules and the performance monitoring including an analysis of the watermarked image as well as the extracted logo image.There is also a scrambling module that is working in association with levels-directions decomposition in contourlet embedding mechanism,while a decision maker system is designed to deal with the appropriate number of sub-bands to be embedded in the presence of a series of simulated attacks.The required performance is tangibly considered through an integration of the peak signal-to-noise ratio and the structural similarity indices that are related to watermarked image.And the bit error rate and the normal correlation are considered that are related to the extracted logo analysis,as well.Subsequently,the outcomes are fully analyzed to be competitive with respect to the potential techniques in the image colour models including hue or tint in terms of their shade,saturation or amount of gray and their brightness via value or luminance and also hue,saturation and intensity representations,as long as the performance of the whole of channels are concentrated to be presented.The performance monitoring outcomes indicate that the proposed framework is of significance to be verified.展开更多
为保障复杂装备技术状态管理的有效集成和多方协同,实现技术状态管理业务数据的双重有序管控,提出基于领域系统(domain system,DS)的建模架构和设计方法。通过引入基于模式的系统工程(pattern-based system engineering,PBSE)框架,构建...为保障复杂装备技术状态管理的有效集成和多方协同,实现技术状态管理业务数据的双重有序管控,提出基于领域系统(domain system,DS)的建模架构和设计方法。通过引入基于模式的系统工程(pattern-based system engineering,PBSE)框架,构建基于DS的复杂装备技术状态管理基本架构,设计DS元模型、DS模型、DS模式的建模方法,将国防部体系架构元模型(Department of Defense Architecture framework metamodel,DM2)进行复杂装备技术状态管理领域化重组为DS元模型,并通过领域元数据映射为DS模型,使其有序组织为适用于具体装备技术状态管理的DS模式。为验证所提方法的有效性,以运载火箭结构系统多视图物料清单(X bill of material,XBOM)为案例,开展基于DS的技术状态管理应用。结果表明,所提方法可为其技术状态管理提供兼具建模的一致性和可追溯性的实施方案,为复杂装备技术状态管理的领域模型配置提供指导性思路。展开更多
目的综述实施科学整合框架(Consolidated Framework for Implementation Research,CFIR)在循证护理实践中的应用现状,以为相关研究提供参考。方法采用JBI范围综述方法,系统检索PubMed、CINAHL、Embase、MEDLINE、Cochrane Library、Web ...目的综述实施科学整合框架(Consolidated Framework for Implementation Research,CFIR)在循证护理实践中的应用现状,以为相关研究提供参考。方法采用JBI范围综述方法,系统检索PubMed、CINAHL、Embase、MEDLINE、Cochrane Library、Web of Science、中国知网、万方数据知识服务平台和中国生物医学文献数据库。检索时间为2009年8月1日至2024年8月20日。结果共纳入37项研究,涵盖老人、产妇和儿童等多类人群,痴呆、肿瘤和脑血管疾病等多个病种以及医院、社区和家庭等多个场所。研究多采用定性设计,CFIR常被用于指导实施各阶段的数据收集和(或)分析。CFIR各结构领域及其具体要素的使用还存在一定差异,少数研究符合CFIR的预期应用效果。结论CFIR具有推进证据临床转化的潜力,并广泛应用于定性研究中,促进了不同研究间的比较和不同理论框架的融合。建议将CFIR作为因素清单指导定性数据的收集与分析,并在研究方法中阐明选择CFIR各领域及其要素的理由和逻辑。展开更多
文摘With the development of digital information technologies,robust watermarking framework is taken into real consideration as a challenging issue in the area of image processing,due to the large applicabilities and its utilities in a number of academic and real environments.There are a wide range of solutions to provide image watermarking frameworks,while each one of them is attempted to address an efficient and applicable idea.In reality,the traditional techniques do not have sufficient merit to realize an accurate application.Due to the fact that the main idea behind the approach is organized based on contourlet representation,the only state-of-the-art materials that are investigated along with an integration of the aforementioned contourlet representation in line with watermarking framework are concentrated to be able to propose the novel and skilled technique.In a word,the main process of the proposed robust watermarking framework is organized to deal with both new embedding and de-embedding processes in the area of contourlet transform to generate watermarked image and the corresponding extracted logo image with high accuracy.In fact,the motivation of the approach is that the suggested complexity can be of novelty,which consists of the contourlet representation,the embedding and the corresponding de-embedding modules and the performance monitoring including an analysis of the watermarked image as well as the extracted logo image.There is also a scrambling module that is working in association with levels-directions decomposition in contourlet embedding mechanism,while a decision maker system is designed to deal with the appropriate number of sub-bands to be embedded in the presence of a series of simulated attacks.The required performance is tangibly considered through an integration of the peak signal-to-noise ratio and the structural similarity indices that are related to watermarked image.And the bit error rate and the normal correlation are considered that are related to the extracted logo analysis,as well.Subsequently,the outcomes are fully analyzed to be competitive with respect to the potential techniques in the image colour models including hue or tint in terms of their shade,saturation or amount of gray and their brightness via value or luminance and also hue,saturation and intensity representations,as long as the performance of the whole of channels are concentrated to be presented.The performance monitoring outcomes indicate that the proposed framework is of significance to be verified.
文摘为保障复杂装备技术状态管理的有效集成和多方协同,实现技术状态管理业务数据的双重有序管控,提出基于领域系统(domain system,DS)的建模架构和设计方法。通过引入基于模式的系统工程(pattern-based system engineering,PBSE)框架,构建基于DS的复杂装备技术状态管理基本架构,设计DS元模型、DS模型、DS模式的建模方法,将国防部体系架构元模型(Department of Defense Architecture framework metamodel,DM2)进行复杂装备技术状态管理领域化重组为DS元模型,并通过领域元数据映射为DS模型,使其有序组织为适用于具体装备技术状态管理的DS模式。为验证所提方法的有效性,以运载火箭结构系统多视图物料清单(X bill of material,XBOM)为案例,开展基于DS的技术状态管理应用。结果表明,所提方法可为其技术状态管理提供兼具建模的一致性和可追溯性的实施方案,为复杂装备技术状态管理的领域模型配置提供指导性思路。
文摘目的综述实施科学整合框架(Consolidated Framework for Implementation Research,CFIR)在循证护理实践中的应用现状,以为相关研究提供参考。方法采用JBI范围综述方法,系统检索PubMed、CINAHL、Embase、MEDLINE、Cochrane Library、Web of Science、中国知网、万方数据知识服务平台和中国生物医学文献数据库。检索时间为2009年8月1日至2024年8月20日。结果共纳入37项研究,涵盖老人、产妇和儿童等多类人群,痴呆、肿瘤和脑血管疾病等多个病种以及医院、社区和家庭等多个场所。研究多采用定性设计,CFIR常被用于指导实施各阶段的数据收集和(或)分析。CFIR各结构领域及其具体要素的使用还存在一定差异,少数研究符合CFIR的预期应用效果。结论CFIR具有推进证据临床转化的潜力,并广泛应用于定性研究中,促进了不同研究间的比较和不同理论框架的融合。建议将CFIR作为因素清单指导定性数据的收集与分析,并在研究方法中阐明选择CFIR各领域及其要素的理由和逻辑。
