Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 7

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
1

Ecological assessment of heavy metals in sediments from Jianhu Lake in Yunnan Province, China

100%
Li B., Wang H., Yu Q., Wei F., Zhang Q.
Polish Journal of Environmental Studies
|
2020
|
tom 29
|
nr 6
2

Analysis of sources and concentrations of heavy metal contents in PM10 over a four-season cycle in a heavily industrialised city in China

100%
Jin X., Fan J., Niu H., Ling P., Yu Q.
Polish Journal of Environmental Studies
|
2019
|
tom 28
|
nr 5
In order to study the sources and concentrations of heavy metals in atmospheric PM₁₀, a total of 144 samples were collected in two areas of Handan, China. The metal contents of Mn, Co, Ni, Cu, Cd, and Pb in the sample were analysed by inductively coupled plasma mass spectrometry. Contamination characteristics and sources were analysed by the geo-accumulation index and the enrichment factor method. Results indicated that heavy metal elements Mn, Cu, and Pb accounted for 96.9% of the total concentration. In addition, the seasonal levels of concentrations of the six elements from high to low were in the order of winter > fall > spring > summer. In both areas, the metal contents of Cd, Pb, and Cu were at levels 6, 4 and 2, respectively. Co and Ni were not considered polluting elements. The element Cd was mainly from anthropogenic sources, while the element Mn was mainly from natural sources. The enrichment factor values of Cu and Pb were between 10 and 100. The study revealed that pollution by heavy metals in industrialised cities is astounding, and leads to serious consequences for human health. Urgent measures are required to reinforce prevention and control of this pollution.
3

Study on hydrodynamic configuration parameters of vertical-axis tidal turbine

100%
Guangnian L., Chen Q., Liu Y., Zhu S., Yu Q.
Polish Maritime Research
|
2020
|
tom 27
|
nr 1
In this paper, a numerical code for predicting the hydrodynamic performance of vertical-axis tidal turbine array is developed. The effect of the tip speed ratio, solidity, and preset angle on the hydrodynamic performance are discussed using a series of calculations. The load principle of the rotor and the variation principle of the turbine power coefficient are studied. All these results can be considered as a reference for the design of vertical-axis tidal turbines
4

Characteristics, sources and risk assessment of heavy metals in the Ganjiang River basin, China

100%
Shu W., Wang P., Zhao J., Yu X., Yu Q.
Polish Journal of Environmental Studies
|
2020
|
tom 29
|
nr 2
5
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Detection of trace gases by means of the infrared laser photoacoustic technique

100%
Buscher S., Fink T., Dax A., Yu Q., Urban W.
International Agrophysics
|
1994
|
tom 08
|
nr 4
6

A survey and ecological risk assessment of niclosamide and its degradation intermediate in Wucheng waters within Poyang Lake Basin, China

86%
Yang Q., Liu M., Huang D., Xiong W., Yu Q., Guo T., Wei Q.
Polish Journal of Environmental Studies
|
2021
|
tom 30
|
nr 1
7

Thalidomide-based TNF-alpha inhibitors for neurodegenerative diseases

72%
Greig N. H., Giordano T., Zhu X., Yu Q., Perry T. A., Holloway H. W., Brossi A., Rogers J. T., Sambamurti K., Lahiri D. K.
Acta Neurobiologiae Experimentalis
|
2004
|
tom 64
|
nr 1
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.