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Standards + Innovation Awards

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China Standardization 2020年第1期 56-56页

On November 13, 2019, on the occasion of the European conference "Boosting innovation through standards", cen and cenELEC launched the Standards+Innovation Awards acknowledging the important contributions of researchers, innovators and entrepreneurs to standardization and celebrating particularly relevant cases of synergies between

关键词： Innovation Awards Standards

Stay on board——revised safety standard for small craft: EN ISO 15085:2024

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China Standardization 2024年第S1期 47-47页

作者： cen cenELEC cen/cenELEC

A critical update in the world of small craft safety was introduced with the release of EN ISO 15085:2024,focusing on preventing man-overboard accidents and providing solutions for *** by ISO/TC 188,Small craft,mirrored at the European level by cen/TC 464,this standard sets out detailed requirements to enhance the safety of small craft,providing a safer environment for users and reducing risks of falling in the water.

关键词： mirror craft safety

A new European standard for the electronic equipment used in the transport of dangerous goods published

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China Standardization 2022年第S1期 57-57页

作者： cen/cenELEC cen/cenELEC

The transport of dangerous goods(TDG)is a field where the precision of control,measurement and event data of electronic equipment is *** ensure the necessary level of precision,high-level standards are ***,new EN 15969-1:2022,Tanks for transport of dangerous goods-Digital interface for the data transfer between tank vehicle and with stationary facilities-Part 1:Protocol specification-Control,measurement and event data,which addresses this need,is a welcome addition to cen’s portfolio.

关键词： transport electronic goods

一般壳体结构大位移和大应变弹塑性有限元分析与损伤力学的某些应用

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应用力学学报 1990年第1期7卷 10-20页

作者：殷家驹 A. COMBESCURE 西安交通大学工程力学系 CEA/cen/SACLAY/DEMT F-91191 GIF-SUR-YVETTE CEDEX FRANCE

离散的Kirchhoff理论三角形单元对一般壳体结构的分析是十分可靠的和有效的。本文将推广此种单元去分析壳体结构的大位移大应变弹塑性响应。校正的拉格朗日增量的Jaumann应力公式和塑性损伤相耦合的塑性流动本构关系已应用于列式中。在... 详细信息

离散的Kirchhoff理论三角形单元对一般壳体结构的分析是十分可靠的和有效的。本文将推广此种单元去分析壳体结构的大位移大应变弹塑性响应。校正的拉格朗日增量的Jaumann应力公式和塑性损伤相耦合的塑性流动本构关系已应用于列式中。在对带环向裂纹和环向槽受四点弯曲载荷的圆柱壳的分析中,显示了和实验结果符合一致,且说明了与塑性损伤相藕合的大应变弹塑性分析无论在宏观水平上或微观水平上都能显示比断裂力学方法更符合实际的结果。

关键词：有限元分析损伤力学壳体结构大位移大应变弹塑性

The launch of European technical committee on carbon capture, utilization and storage

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China Standardization 2024年第2期126卷 65-65页

作者： cen-cenELEC cen-cenELEC

The Dutch Standardization Institute(NEN) has initiated the establishment of a European technical committee(cen/TC 474) that will develop European Standards across the CCUS(carbon capture, utilization and storage) value chain. With broad participation from cen Members and European organizations, the committee kicked off in Brussels and finalized its scope and first work programme.

关键词： European committee Dutch

A major step for railways cybersecurity: the new CLC/TS 50701

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China Standardization 2021年第4期 59-59页

In the field of railways, connected trains and infrastructure are seen as a major source of improvement for the management of traffic and capacity, energy efficiency, and network communication. But this trend also means more potential threats of cyber-attacks. To protect the rolling stock and fixed installations, the support of adequate tools and requirements is needed.

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MIRABEL:欧洲景观中生物多样性综合评估和评述模型

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AMBIO－人类环境杂志 2001年第2期30卷 81-88页

作者： Sandrine Petit Les Firbank Barry Wyatt David Howard 杨丽韫 CEH Merlewood土地利用部门 cen Monks Wood

本文应用一种综合概念框架——MIRABEL——对由环境变化对生物多样性引起的后果进行了分析,我们在此讨论了这一模型的方法和其中的部分结果。文章就欧洲28个国家对所预测的因10类环境压力造成的受胁迫生境的地位变化用MIRABEL模型进行... 详细信息

本文应用一种综合概念框架——MIRABEL——对由环境变化对生物多样性引起的后果进行了分析,我们在此讨论了这一模型的方法和其中的部分结果。文章就欧洲28个国家对所预测的因10类环境压力造成的受胁迫生境的地位变化用MIRABEL模型进行了列表显示。通过对13个生态区域中的每一个区域编制单独的影响表格,对在压力和影响严重的情况下区域的变化进行了研究。结果表明,农业集约化是主要的威胁因子之一。通过MIRABEL记载,证明欧洲不同生态地区的压力强度、其变化速率以及过去和将来对生物多样性的影响差异,与欧洲生物地理变异有关,这就要求我们在评价环境变化时需要将这些差异性考虑在内。

关键词： MIRABEL 欧洲景观生物多样性综合评估评述模型

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角质层渗透性质的三维数值模拟

航天医学与医学工程 2004年第4期17卷 251-255页

作者：刘宇红 Dirk Feuchter Gabriel Wittum 张恩平曾衍钧北京工业大学生物力学与医学信息研究所北京100022 Technical Simulation Group of the Interdisciplinary cen-ter for Scientific Computing of University Heidelberg

目的从数值模拟的角度研究药物渗透皮肤角质层的过程,为实际的药物工作者提供理论上的指导和帮助。方法用有限元方法离散偏微分方程的差分格式,将角质层的角蛋白细胞近似为物理学上经典的由6个四边形和8个六边形围成的三维十四面体结构... 详细信息

目的从数值模拟的角度研究药物渗透皮肤角质层的过程,为实际的药物工作者提供理论上的指导和帮助。方法用有限元方法离散偏微分方程的差分格式,将角质层的角蛋白细胞近似为物理学上经典的由6个四边形和8个六边形围成的三维十四面体结构,同时将角蛋白细胞间的脂质体视为十四面体结构的一部分,离散其相应的单元网格。结果得到了药物渗透皮肤角质层的三维数值模拟,并给出了模拟过程中浓度和速度变化的可视化效果示意图。结论本文所采用的几何模型与实际的生理结构模型非常接近,数值模拟结果证明这一方法对实际工作有参考意义。

关键词：角质层渗透十四面体数值模拟三维模型

The effects of water flow and temperature on thermal regime around a culvert built on permafrost

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Research in Cold and Arid Regions 2014年第5期6卷 415-422页

作者： Loriane Périer Guy Doré C.R.Burn Loriane Perier Guy Dore C. R. Bum Laval University Center for Northern Studies (CEN) 1035 Avenue De la m~decine QuObec Canada G1A OA6 Carleton University Dept. of Geography and Environmental Studies Ottawa Ontario Canada K1S 5B6

Temperature and water flow through a culvert beneath the Alaska Highway near Beaver Creek,Yukon,were measured at hourly intervals between June and October *** data were used to simulate the effect of the culvert on the thermal regime of the road embankment and subjacent permafrost.A 2-D thermal model of the embankment and permafrost was developed with TEMP/W and calibrated using field *** relations were obtained between water temperatures at the entrance to the culvert,flow into the culvert,and water temperatures inside the *** temperatures at the entrance and inside the culvert had a linear relation,while water temperatures inside the culvert and water flow were associated by a logarithmic relation.A multiple linear regression was used to summarize these *** this relationship,changes in the flow rate and water temperatures at the entrance of the culvert were simulated to obtain predicted water temperatures in the *** temperatures in the culvert were used in the thermal model to determine their effects on the ground thermal regime near the *** of ±10% in water flow rate had no impact on the thermal regime underneath the *** of water temperature at the entrance of the culvert had a noticeable influence on the thermal regime.A final simulation was conducted without insulation beneath the *** thaw depth was 30 cm with insulation,and 120 cm without insulation,illustrating the importance of insulation to the ground thermal regime.

关键词： culvert thermal regime water flow water temperature modeling permafrost