Spectral analysis was a method of identifying substances, determining their chemical composition and calculating their content based on their spectral characteristics. This paper mainly discussed the application of va...Spectral analysis was a method of identifying substances, determining their chemical composition and calculating their content based on their spectral characteristics. This paper mainly discussed the application of various spectroscopic techniques, mainly including atomic absorption spectrometry (AAS) inductively coupled plasma emission spectrometry (ICP-AES) X-ray fluorescence spectroscopy (XRF) atomic fluorescence spectroscopy (AFS) direct reading spectroscopy (OES) glow discharge emission spectroscopy (GD-OSE) laser-induced breakdown spectroscopy (LIBS), in the formulation of non-ferrous metal standards in China. The AAS method was the most widely used single-element microanalysis method among the non-ferrous metal standards. The ICP-AES method was good at significant advantages in the simultaneous detection of multiple elements. The XRF method was increasingly used in the determination of primary and secondary trace elements due to its simple sample preparation and high efficiency. The AFS was mostly detected by single-element trace analysis. OES GD-OES and LIBS were playing an increasingly important role in the new demand area for non-ferrous metals. This paper discussed matrix elimination, sample digestion, sample preparation, instrument categories and other aspects of some standards, and summarized the advantages of spectral analysis and traditional chemical analysis methods. The new methods of future spectroscopic technology had been illustrated in the process of developing non-ferrous metal standards.展开更多
建设完备的航天器电源与供配电标准体系是提升航天器电源与供配电系统设计正确、确保卫星能源安全可靠的重要工具。本文通过研究欧洲空间标准化合作组织ECSS(European Cooperation for Space Standardization)、美国宇航局NASA(National...建设完备的航天器电源与供配电标准体系是提升航天器电源与供配电系统设计正确、确保卫星能源安全可靠的重要工具。本文通过研究欧洲空间标准化合作组织ECSS(European Cooperation for Space Standardization)、美国宇航局NASA(National Aeronautics and Space Administration)、日本宇宙航空研究开发机构JAXA(Japan Aerospace Exploration Agency)、国际标准化组织ISO(International Standard Organization)和美国航空航天学会AIAA(American Institute of Aeronautics and Astronautics)等国外组织出版的电源与供配电系统标准,分析各自标准专业的侧重点,综述国外标准所包含的内容,总结各组织的标准体系,并结合我国的实际情况,提出了航天器电源与供配电标准体系建议和参考。展开更多
目的探讨基于《国际功能、残疾及健康分类》(International Classification of Functioning,Disability and Health,ICF)理念下膀胱标准化管理方案在间歇性导尿患者出院准备度中的应用效果,为有效指导临床决策、促进患者主动参与和自我...目的探讨基于《国际功能、残疾及健康分类》(International Classification of Functioning,Disability and Health,ICF)理念下膀胱标准化管理方案在间歇性导尿患者出院准备度中的应用效果,为有效指导临床决策、促进患者主动参与和自我管理能力提升、优化出院指导质量提供思路和参考。方法选取2022年5月—2023年8月在江苏省常州市德安医院康复中心住院的因脊髓损伤所致间歇性导尿患者50例为研究对象,采用抽样便利数据表法分为观察组与对照组,各25例,最终收集到有效数据为对照组23例,观察组24例。对照组实施常规膀胱管理方案;观察组实施基于ICF理念的膀胱标准化管理方案。比较2组患者出院准备度、自我效能水平,并调查2组患者出院后1个月膀胱自我管理能力情况。结果出院时观察组出院准备度总分为92(87.50,96.00)分,对照组为80(78.00,84.00)分,差异有统计学意义(P<0.05)。出院时观察组自我效能评分为(86.58±5.49)分,对照组为(74.87±7.68)分,差异有统计学意义(P<0.05)。出院后1个月,观察组患者自我膀胱管理知识掌握与自我管理能力总分分别为(63.17±1.79)分、(83.21±4.06)分,均高于对照组的(42.52±3.23)分、(66.57±5.23)分,差异有统计学意义(P<0.05)。结论基于ICF理念的膀胱标准化管理方案可以提高间歇性导尿患者的自我效能和膀胱管理能力,以获得最佳的出院准备度,促进患者完成从医院专业照护到自我照护的顺利过渡,提升医疗服务效率和质量,改善出院后生活质量。展开更多
文摘Spectral analysis was a method of identifying substances, determining their chemical composition and calculating their content based on their spectral characteristics. This paper mainly discussed the application of various spectroscopic techniques, mainly including atomic absorption spectrometry (AAS) inductively coupled plasma emission spectrometry (ICP-AES) X-ray fluorescence spectroscopy (XRF) atomic fluorescence spectroscopy (AFS) direct reading spectroscopy (OES) glow discharge emission spectroscopy (GD-OSE) laser-induced breakdown spectroscopy (LIBS), in the formulation of non-ferrous metal standards in China. The AAS method was the most widely used single-element microanalysis method among the non-ferrous metal standards. The ICP-AES method was good at significant advantages in the simultaneous detection of multiple elements. The XRF method was increasingly used in the determination of primary and secondary trace elements due to its simple sample preparation and high efficiency. The AFS was mostly detected by single-element trace analysis. OES GD-OES and LIBS were playing an increasingly important role in the new demand area for non-ferrous metals. This paper discussed matrix elimination, sample digestion, sample preparation, instrument categories and other aspects of some standards, and summarized the advantages of spectral analysis and traditional chemical analysis methods. The new methods of future spectroscopic technology had been illustrated in the process of developing non-ferrous metal standards.
文摘建设完备的航天器电源与供配电标准体系是提升航天器电源与供配电系统设计正确、确保卫星能源安全可靠的重要工具。本文通过研究欧洲空间标准化合作组织ECSS(European Cooperation for Space Standardization)、美国宇航局NASA(National Aeronautics and Space Administration)、日本宇宙航空研究开发机构JAXA(Japan Aerospace Exploration Agency)、国际标准化组织ISO(International Standard Organization)和美国航空航天学会AIAA(American Institute of Aeronautics and Astronautics)等国外组织出版的电源与供配电系统标准,分析各自标准专业的侧重点,综述国外标准所包含的内容,总结各组织的标准体系,并结合我国的实际情况,提出了航天器电源与供配电标准体系建议和参考。
文摘目的探讨基于《国际功能、残疾及健康分类》(International Classification of Functioning,Disability and Health,ICF)理念下膀胱标准化管理方案在间歇性导尿患者出院准备度中的应用效果,为有效指导临床决策、促进患者主动参与和自我管理能力提升、优化出院指导质量提供思路和参考。方法选取2022年5月—2023年8月在江苏省常州市德安医院康复中心住院的因脊髓损伤所致间歇性导尿患者50例为研究对象,采用抽样便利数据表法分为观察组与对照组,各25例,最终收集到有效数据为对照组23例,观察组24例。对照组实施常规膀胱管理方案;观察组实施基于ICF理念的膀胱标准化管理方案。比较2组患者出院准备度、自我效能水平,并调查2组患者出院后1个月膀胱自我管理能力情况。结果出院时观察组出院准备度总分为92(87.50,96.00)分,对照组为80(78.00,84.00)分,差异有统计学意义(P<0.05)。出院时观察组自我效能评分为(86.58±5.49)分,对照组为(74.87±7.68)分,差异有统计学意义(P<0.05)。出院后1个月,观察组患者自我膀胱管理知识掌握与自我管理能力总分分别为(63.17±1.79)分、(83.21±4.06)分,均高于对照组的(42.52±3.23)分、(66.57±5.23)分,差异有统计学意义(P<0.05)。结论基于ICF理念的膀胱标准化管理方案可以提高间歇性导尿患者的自我效能和膀胱管理能力,以获得最佳的出院准备度,促进患者完成从医院专业照护到自我照护的顺利过渡,提升医疗服务效率和质量,改善出院后生活质量。
