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排序方式: 共有119条查询结果,搜索用时 765 毫秒
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Marko S. Markov 《The Environmentalist》2005,25(2-4):67-74
Summary We often do not realize how fast the time is running. It is now more than a year since the sad news for the death of William
Ross Adey came. With kind agreement of Prof. Kostarakis my presentation at the 3rd International Workshop “Biological Effects
of Electromagnetic Fields” was dedicated to the memory of this remarkable scientist, dear colleague and friend. I would like
that this paper will be a tribute to the life and scientific achievements of Dr. Ross Adey. It is astonishing that among all
his contributions in the field of Bioelectromagnetics, Dr. Adey introduced the term “window”. 相似文献
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Marko Kete Egon Pavlica Fernando Fresno Gvido Bratina Urška Lavrenčič Štangar 《Environmental science and pollution research international》2014,21(19):11238-11249
Photocatalytic properties of titanium (IV) oxide (TiO2) in anatase form can be used for various purposes, including photocatalytic purification of water. For such an application, suspended or fixed photocatalytic reactors are used. Those with fixed phase seem to be preferred due to some advantages, one of which is the avoidance of photocatalyst filtration. To avoid leaching and exfoliation of the fixed phase, an immobilization procedure leading to a good adhesion of a catalyst to a substrate is crucial. Within this work, we present physical and photocatalytic characterization results of five commercially available TiO2 photocatalysts (P25, P90, PC500, KRONOClean 7000, VPC-10) and one pigment (Hombitan LO-CR-S-M), which were successfully immobilized on glass slides by a “sol suspension” procedure. Different mechanical tests and characterization methods were used to evaluate the stability and morphology of the layers. Evaluation of photocatalytic activity was done by tests under UVA and UV–vis irradiation, using a method based on the detection of the fluorescent oxidation product of terephthalic acid (TPA), i.e., hydroxyterephthalic acid (HTPA). Aeroxide® P90 incorporated into the silica-titania binder was the most photocatalytically active layer and, unlike the others, showed significant increase of photocatalytic activity through the entire range of tested UVA irradiation intensities (2.3 mW/cm2–6.1 mW/cm2). The high mechanical stability of some photocatalytic layers allows using them in water photocatalytic purification reactions. 相似文献
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Likon M Cernec F Svegl F Saarela J Zimmie TF 《Waste management (New York, N.Y.)》2011,31(6):1350-1356
Papermill sludge (PMS) is generated during the wastewater treatment process of paper production. Its handling and disposal techniques are of great concern for the environment. It can be landfilled as a waste, or it can be recycled and converted into useful products of high value. It has a very promising application as an absorbing agent for the cleaning of water surfaces polluted with hydrophobic substances (vegetable, synthetic and mineral oils, animal fats, fuels, organic chemicals and even coal dust). Here, we present the pretreatment procedure (hydrophobation, mechanical and thermal treatments) of PMS that produces a lightweight absorbent material (HAWSC - high efficiency absorbent for water surface cleaning), which floats on the water surface and binds hydrophobic pollutants with considerably higher efficiency than commercially available mineral and synthetic absorbents. After its application, it can be incinerated, due to its high caloric value, to produce energy. The incineration residues can then be formed into granules that can be used as an efficient absorbent for fluids spilled onto solid surfaces. 相似文献
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Marko Ahteensuu 《Journal of Agricultural and Environmental Ethics》2012,25(3):295-313
This paper spells out and discusses four assumptions of the deficit model type of thinking. The assumptions are: First, the public is ignorant of science. Second, the public has negative attitudes towards (specific instances of) science and technology. Third, ignorance is at the root of these negative attitudes. Fourth, the public’s knowledge deficit can be remedied by one-way science communication from scientists to citizens. It is argued that there is nothing wrong with ignorance-based explanations per se. Ignorance accounts at least partially for many cases of opposition to specific instances of science and technology. Furthermore, more attention needs to be paid to the issue of relevance. In regard to the evaluation of a scientific experiment, a technology, or a product, the question is not only “who knows best?,” but also “what knowledge is relevant and to what extent?.” Examples are drawn primarily from the debate on genetic engineering in agriculture. 相似文献
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An Experiment in Participative Environmental Decision Making 总被引:2,自引:0,他引:2
Summary The paper presents a method of participatory decision-making involving the authorities at local level, experts and the public.
It studies how to solve the problems caused by the heterogeneity of the parties taking part in the decision-making process.
The method builds on mutual learning and consideration among the participants following a systematic approach led by a moderator.
The method was tested at a workshop simulating a real-life situation. The test case studied at the workshop was the problem
of identifying the best site for a low and intermediate level radioactive waste repository among three alternatives. The learning
phase was the Krško Nuclear Power Plant cooling problem. The results show that the participants were able to reach agreement
on the prioritisation of the alternatives and to end up with suprisingly complex and fully reasonable decision models. We
believe that this was achieved particularly due to the well defined procedure that guided the decision-making process, and
the ability of all participants to see the influence of their views on the decision model. 相似文献
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Marko S. Markov 《The Environmentalist》2007,27(4):465-475
Magnetic and electromagnetic fields are now recognized by the 21st century medicine as real physical entities that promise
the healing of various health problems, even when conventional medicine has failed. Today magnetotherapy provides a non-invasive,
safe, and easy method to directly treat the site of injury, the source of pain and inflammation, and other types of diseases
and pathologies. Millions of people worldwide have received help in treatment of musculoskeletal system, as well as pain relief.
Pulsed electromagnetic fields are one important modality in magnetotherapy and recent technological innovations, such as Curatron
pulsed electromagnetic field devices, offer excellent, state of the art computer controlled therapy system. In this article
the development, state of the art and future of pulsed electromagnetic field therapy are discussed. 相似文献