7 research outputs found

    The role of green logistics for environmental issues in city transport road ecology: A review

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    The city from the ecological point of view represents the difficult habitat of the human including natural and anthropogenous subsystems. The first is made by the atmosphere, a lithosphere, the hydrosphere, and the biosphere, and the following subsystems enter into the second: production, town planning, and infrastructure. The degree of environmental friendliness of the city depends on a ratio of natural and anthropogenous subsystems. Currently, many ways and methods are being used to use green logistics to solve environmental issues. There are factors that can help with this: fuel, infrastructure, the aerodynamics of cars, and technology. In this literature review, green logistics in city transport road ecology is summarized as one of the main types of sources for solving environmental issues. Investigating the city ecology by factual consideration includes townplanning ecology. The difference between town-planning ecology the engineering is that a subject of discipline is not the separate enterprise, but territorial complexes and systems of the occupied places. Thus, territorial and town-planning environmental management is studied. From these positions, the town-planning ecology is the key to the planning-technical subject. Methods of achievement of ecologically optimum compromise between anthropogenous systems of different levels and environments are investigated in it

    GCā€“MS and GCā€“NPD Determination of Formaldehyde Dimethylhydrazone in Water Using SPME

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    Formaldehyde dimethylhydrazone (FADMH) is one of the important transformation products of residual rocket fuel 1,1-dimethylhydrazine (1,1-DMH). Thus, recent studies show that FADMH toxicity is comparable to that of undecomposed 1,1-DMH. In this study, a new method for quantification of FADMH in water based on solid phase microextraction (SPME) in combination with gas chromatography (GC) with mass spectrometric (MS) and nitrogen-phosphorus detection (NPD) is presented. Effects of SPME fiber coating type, extraction and desorption temperatures, extraction time, and pH on analyte recovery were studied. The optimized method used 65 micron polydimethylsiloxane/divinylbenzene fiber coating for 1Ā min headspace extractions at 30Ā Ā°C. Preferred pH and desorption temperature from the SPME fiber are >8.5 and 200Ā Ā°C, respectively. Detection limits were estimated to be 1.5 and 0.5Ā Ī¼gĀ Lāˆ’1 for MS and NPD, respectively. The method was applied to laboratory-scale experiments to quantify FADMH. Results indicate applicability for in situ sampling and analysis and possible first-time detection of free FADMH in water

    The role of green logistics for environmental issues in city transport road ecology: A review

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    The city from the ecological point of view represents the difficult habitat of the human including natural and anthropogenous subsystems. The first is made by the atmosphere, a lithosphere, the hydrosphere, and the biosphere, and the following subsystems enter into the second: production, town planning, and infrastructure. The degree of environmental friendliness of the city depends on a ratio of natural and anthropogenous subsystems. Currently, many ways and methods are being used to use green logistics to solve environmental issues. There are factors that can help with this: fuel, infrastructure, the aerodynamics of cars, and technology. In this literature review, green logistics in city transport road ecology is summarized as one of the main types of sources for solving environmental issues. Investigating the city ecology by factual consideration includes townplanning ecology. The difference between town-planning ecology the engineering is that a subject of discipline is not the separate enterprise, but territorial complexes and systems of the occupied places. Thus, territorial and town-planning environmental management is studied. From these positions, the town-planning ecology is the key to the planning-technical subject. Methods of achievement of ecologically optimum compromise between anthropogenous systems of different levels and environments are investigated in it

    Multicriteria Model of Studentsā€™ Knowledge Diagnostics Based on the Doubt Measuring Level Method for E&M Learning

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    This research is devoted to the development of a multicriteria model, valid only for testing, which takes into account the number of responses, the level of question complexity depending on the time spent on their response, time of the whole testing, doubts, number of passes, and the use of additional programs. Also the developed method of measuring the level of the user doubts is described, which gives a clearer and ā€œtransparent situation pictureā€ for a more objective decision-making. The method makes it possible to reduce the probability of guessing the correct answer, which increases the objectivity of assessing the knowledge level in the diagnostic systems for E&M learning
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