共查询到20条相似文献,搜索用时 250 毫秒
1.
2.
3.
4.
《中国工程科学》2021,(3)
标准化体系建设对生产性服务业高质量、融合发展具有重要作用,目前我国生产性服务业标准化体系尚未完善,在标准覆盖范围、有效供给、国际化等方面还存在诸多发展问题,亟需结合社会需求,建立健全科学规范、技术先进、具有前瞻性和引领性的生产性服务业标准化体系。本文系统分析了国内外生产性服务业标准化的发展现状,研判了生产性服务业标准化的发展趋势,总结了新时代生产性服务业标准化体系建设面临的问题,提出了面向2025年和2035年的生产性服务业标准化体系的发展目标、重点方向和实施路径。研究建议,加强健全符合新时代高质量发展需求的生产性服务业标准化体系建设、增加新兴服务业态的标准有效供给、推进生产性服务业与其他行业的标准体系系统衔接、夯实标准化人才基础、推进国际标准化工作,以期为我国现代化经济体系的发展提供标准化技术支撑。 相似文献
5.
靳乃宁 《现代测量与实验室管理》2022,(1):80-81
本文通过检验检测机构应传递信任、服务发展,检验检测机构要控制风险、依法检测,检验检测机构应抢抓机遇、推进检测标准化品牌化三个方面展开论述,让我国的检验检测真正成为高技术服务业、高科技服务业,成为传递信任的中间桥梁,向标准化品牌化发展,成为国内领先、国际竞争力强的专业化检测机构. 相似文献
6.
7.
本文研究了标准化促进生产性服务业发展的内在机理;在分析全国生产性服务业标准化现状及存在问题的基础上,结合国际标准化组织(ISO)、美国、日本、英国标准化工作的成功经验,提出标准化促进我国生产性服务业发展的总体思路,即完善标准体系、制修订重要标准、加强标准化研究、加大标准实施与试点、搭建标准化服务平台;最后对标准化促进生产性服务业发展提出了机制、资金、服务能力、人才等方面的对策建议。 相似文献
8.
9.
10.
<正>十八大以来,随着我国国民经济实力迅速增长,高新技术产业研发制造水平大幅跃升,市场创新主体的标准创制活跃度与日俱增。在标准创制活动快速发展过程中,市场创新主体和社会团体既有的标准化支撑能力无法满足自身需求,市场化的标准化服务新业态应运而生。标准化服务业试点是国家标准委为加快培育发展标准化服务业,探索支持标准化服务业发展的政策措施。重点针对目前从事标准化服务或正在培育标准化服务业务的各类企事业单位、 相似文献
11.
A method is proposed for estimating the parameters of a mixture of exponential and Weibull distributions for which the accuracy of preliminary estimates obtained by graphical analysis is refined in accordance with the criterion of maximum likelihood. The efficiency of the proposed method is supported by the results of statistical modeling. 相似文献
12.
Liebert A Wabnitz H Grosenick D Möller M Macdonald R Rinneberg H 《Applied optics》2003,42(28):5785-5792
A novel method for the determination of the optical properties of tissue from time-domain measurements is presented. The data analysis is based on the evaluation of the first moment and the second centralized moment, i.e., the mean time of flight and the variance of the measured distribution of times of flight (DTOF) of photons injected by short (picosecond) laser pulses. Analytical expressions are derived for calculation of absorption and of reduced scattering coefficients from these moments by application of diffusion theory for infinite and semi-infinite homogeneous media. The proposed method was tested on experimental data obtained with phantoms, and results for absorption and reduced scattering coefficients obtained by the proposed method are compared with those obtained by fitting of the same data with analytical solutions of the diffusion equation. Furthermore, the accuracy of the moment analysis was investigated for a range of integration limits of the DTOF. The moment analysis may serve as a comparatively fast method for evaluating optical properties with sufficient accuracy and can be used, e.g., for on-line monitoring of optical properties of biological tissue. 相似文献
13.
14.
15.
O'Brien RS 《Radiation protection dosimetry》2003,105(1-4):95-100
Australia has several uranium mines and a large number of mineral sand mines, with associated processing facilities. Exposures resulting from these mining and processing operations usually involve intakes of mixtures of radionuclides. This work describes the development of a suite of first order, linear compartment models, based on the ICRP Publication 66 respiratory tract model, and an analytical solution to the decay equations, for assessing the consequences of such intakes. The computer programs based on these models directly compute excretion, organ retention and organ and whole-body doses for intakes of either single radionuclides or any mixture of radionuclides belonging to the same radioactive decay chain. The intake can be via inhalation, ingestion or injection, and can be acute, chronic or of limited duration. The starting concentration and degree of secular (dis)equilibrium can be specified for each radionuclide. No assumptions need to be made about the relative magnitudes of the radioactive half-lives of the different nuclides. 相似文献
16.
本文根据多年的实践检定经验 ,参照JJF1 0 59- 1 999《测量不确定度评定与表示》以及《测量不确定度表达 1 0讲》 ,对卧式金属罐容量的测量结果不确定度进行了评定。 相似文献
17.
18.
19.
Conventional methods for summation of direct measurement errors are considered. Conditions under which these methods provide consistent results are stated. It is proposed to utilize for characteristic of the total error, its interval estimator or the half-sum of the value obtained by adding up its arithmetic and geometric random errors.Translated from Izmeritel'naya Tekhnika, No. 4, pp. 10–12, April, 1995. 相似文献
20.
An approximate analytical expression is derived for the velocity of the front of the wave of change of boiling modes on a
rod and on a plate. The impact of the Thomson effect and of the heater orientation in the gravity field is included. Adequate
agreement is demonstrated between the derived relations and experimental data. 相似文献