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Is nanotechnology an efficient tool in eco-construction?

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浙江大学学报（英文版）A辑：应用物理与工程 2019年第5期20卷 380-381页

作者： Lech czarnecki The Instytut Techniki Budowlanej(ITB)

This intriguing question has been asked constantly (Teizer, 2012;czarnecki, 2013). Because the global construction industry produces tens of millions of products annually, even a small nano-impulse may be the cause of a huge change. The question is very important, but the answer could also be very significant because of the contra positions of'eco-efficient construction'as a civilisation challenge and'nanotechnology'as the contemporary mainstream in the development of technology.

关键词： nanotechnology efficient tool eco-construction

Would recycled plastics be a driving force in concrete technology?

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2019年第5期20卷 384-388页

作者： Lech czarnecki The Instytut Techniki Budowlanej(ITB)

1 Introduction The aim of this paper is an attempt to answer the title question. In less than a century concrete has become the most widely used construction material and in less than half a century it has become difficult to imagine concrete without polymers. However, what about the future?I have already tried to answer a similar question(czarnecki, 2015;czarnecki et al., 2018).

关键词： a driving force concrete technology

Trace metal concentrations in hairs of three bat species from an urbanized area in Germany

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Journal of Environmental Sciences 2015年第5期27卷 184-193页

作者： Lucie Flache Sezin czarnecki Rolf-Alexander Düring Uwe Kierdorf Jorge A.Encarna??o Mammalian Ecology Group Department of Animal Ecology and Systematics Justus Liebig University Giessen Institute of Soil Science and Soil Conservation Justus Liebig University Giessen Department of Biology University of Hildesheim

Metal-contaminated soils and sediments are widespread in urbanized areas due to atmospheric deposition close to emission sources. These metals are bio-available for organisms, e.g., insects, and accumulate in food chains of insectivorous *** bats, which live in urban regions and ingest large amounts of food relative to their body mass, are at risk of being poisoned due to the accumulation of trace metals. To determine species-specific trace metal contents in bats from urban environments, hair samples were analyzed by ICP-OES. Observed trace metal concentrations were related to species-specific foraging habitat, prey spectrum and degree of synanthropy. The species studied were Pipistrellus pipistrellus, Myotis daubentonii and Nyctalus noctula. P. pipistrellus showed the highest concentrations of lead and zinc and slightly higher concentrations of cadmium than the other two species, which was related to its high degree of synanthropy with foraging habitat mostly located in cities. In contrast, N. noctula displayed the highest contents of manganese and copper. The reason might be found in its prey spectrum, as N. noctula feeds mainly on beetles that are caught in cultured areas. Trace metal concentrations determined in hair samples of M. daubentonii ranged between the values of P. pipistrellus and N. noctula, probably reflecting an intermediate level of *** correlations were observed between the concentrations of cadmium and lead and those of manganese and copper. Hair samples from bats are suitable monitoring tools to study trace metal exposure and can be used to determine differences in trace metal levels between species.

关键词： Trace metals Urban bats Foraging habitat Prey spectrum Synanthropy ICP-OES

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利用缪子来研究新物理:理论回顾（英文）

中国科学技术大学学报 2016年第5期46卷 407-415页

作者： czarnecki A. SZAFRON R. 阿尔伯塔大学物理系

总结了当前有关利用缪子来研究新物理的议题.我们的注意力放到缪子和质子的磁矩的比值,该比值也是计算所需要的;还有利用束缚态电子的独立检查的测量和标准模型的矛盾;最后涉及作为缪子和电子转变的背景存在的束缚态缪子衰变.

关键词：缪子反常磁矩新物理寻找缪子-电子转变

De Sitter Space as a Computational Tool for Surfaces and Foliations

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American Journal of Computational Mathematics 2013年第1期3卷 1-5页

作者： Maciej czarnecki Szymon Walczak Katedra Geometrii WydziaiMatematyki i InformatykiUniwersytetLodzkiLodzPoland Katedra Metodyki Nauczania Matematyki WydziaiMatematyki i InformatykiUniwersytetLodzkiLodzPoland

The set of all spheres and hyperplanes in the Euclidean space Rn+1 could be identified with the Sitter space Λn+1. All the conformal properties are invariant by the Lorentz form which is natural pseudo-Riemannian metric on Λn+1. We shall study behaviour of some surfaces and foliations as their families using computation in the de Sitter space.

关键词： De Sitter Space Folation Conformal Geometry

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礁石旁的房屋

2020年

作者： Achim Seiffarth，Stefan czarnecki[]

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促使未成熟春小麦籽粒发芽的方法

麦类作物学报 1990年第1期 13-14页

作者： E.czarnecki ,刘保立

在温尼伯,加拿大农试站数年来成功地使用了一种未公开的方法,避开或克服育种材料的休眠特性,通过剥离胚外部的果皮再经赤霉酸处理,促使刚收获的未成熟小麦籽粒发芽。本研究评价了使用三种主处理(低温、剥离果皮和赤霉酸处理)及其所有组... 详细信息

在温尼伯,加拿大农试站数年来成功地使用了一种未公开的方法,避开或克服育种材料的休眠特性,通过剥离胚外部的果皮再经赤霉酸处理,促使刚收获的未成熟小麦籽粒发芽。本研究评价了使用三种主处理(低温、剥离果皮和赤霉酸处理)及其所有组合共八个处

关键词：赤霉酸小麦赤霉素麦类作物籽粒未成熟

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低压真空电弧的截流熄弧能力

电器与能效管理技术 1987年第1期 50-54+62页

作者： Lother czarnecki ,方泽安

在中、低压线路中应用真空开关电器的一个问题是分断小电流时的截流,即在电流自然过零前,电流突然停止,由于电路的波阻抗,可能产生超过电路绝缘水平的异常过电压。本文介绍了通过改变触头材料的成份来降低截流与重燃电压的方法。

关键词：暂态恢复电压电流过零重燃触头材料分断

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普通和固定极点谐振型谐波滤波器

大功率变流技术 2000年第2期 13-17,26页

作者： L.S.czarnecki 孙剑梅

电源电压谐波分量使谐振型谐波滤波器减少波形畸变的效果变差。在负载电流中滤波器调谐频率以外的各种频率的谐波分量也同样如此。电源电压谐波分量的低阻抗和滤波器与电源系统电感的谐振是滤波器效果变差的主要原因。此外,电源结构与... 详细信息

电源电压谐波分量使谐振型谐波滤波器减少波形畸变的效果变差。在负载电流中滤波器调谐频率以外的各种频率的谐波分量也同样如此。电源电压谐波分量的低阻抗和滤波器与电源系统电感的谐振是滤波器效果变差的主要原因。此外,电源结构与参数的改变也可能影响滤波器效果。当滤波器与系统电感的有害谐振点,即滤波器滤波系数的极点,离谐波频率相当远的时候,滤波器的效果能得到提高。文章提出一种谐振型谐波滤波器的综合网络法,其极点由设计者自定。一个数量级等值于电源系统电感量的电源电感线圈能减少滤波器与电源系统参数的依赖关系。这种滤波器称为有固定极点谐振型谐波滤波器。用该方法设计的滤波器与传统设计的普通滤波器相比,其效率更高,性能更可预测。

关键词：谐波滤波器畸变电源