403 research outputs found

    Thomas Würtenberger, Symbole der Freiheit. Zu den Wurzeln westlicher politischer Kultur. Wien/Köln/Weimar, Böhlau 2017

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    Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.Peer Reviewe

    Использование фильтровальной установки для очистки водопроводной воды от солей жёсткости

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    Очистка воды в домашних условиях имеет очень важное значение. В статье проведено исследование ионообменной способности фильтровального модуля при извлечении солей жёсткости из водопроводной воды. Сделан вывод об эффективности извлечения солей жёсткости исследуемым фильтром в сравнении с ранее тестируемыми фильтровальными системами. Water purification in home conditions is very important. In this article, the ion-exchange characteristics of filtering module were studied over extraction of hardness salts from tap water. A conclusion is drawn about efficiency of hardness salts extraction by the investigated filter in comparison with the previously tested filter systems

    Разработка генератора холодной плазмы для нуклеопластики

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    В настоящей работе мы исследовали низкотемпературную плазму и ее параметры для разработки генератора холодной плазмы для нуклеопластики. На первом этапе нашей исследовательской работы мы изучили более 20-ти патентов на приборы, основной функцией которых являлось образование холодной плазмы в электролитах. Мы выявили наиболее приемлемые параметры разрабатываемого нами генератора, а также следующие особенности: 1.Плазма формируется в электролите. 2.Для нуклеопластики используется малый размер электрода. 3.Необходимость возбуждения и удержания режима плазмы. 4.Для режима плазмы требуется меньше мощность, чем для нагрева проводящей ткани от прохождения переменного тока высокой частоты

    Policies and scenarios for Cape Town's energy future: options for sustainable city energy development

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    This study examines a set of energy policy interventions, which can make a major contribution to sustainable development for the City of Cape Town – economically, environmentally and socially. Major energy savings can be made from modal shifts in the transport sector, and with efficient lighting. The savings make a contribution to economic development, by freeing up resources. The savings from energy efficiency also have important social benefits in energy savings, reducing energy bills for poor households. From an environmental point of view, implementing the city’s renewable energy target will have significant costs, but these can be partly off-set by selling carbon credits through the Clean Development Mechanism, and will result in indirect health benefits. Targeted interventions can reduce local air pollution, and help Cape Town become a leader in addressing greenhouse gas emissions. Apart from examining the social, economic and environmental dimensions of each policy, this paper compares policies to one another. Of particular interest for sustainable energy development are those policies which are viable in terms of costs, social benefits and the environment. Compact Fluorescent Lamps (CFLs) in residential, commercial and government sectors and heating ventilation and air conditioning (HVAC) in commerce and government sectors stand out as policies that have benefits from every angle. The paper builds on previous work done on the ‘state of energy’ for Cape Town and develops a tool that can paint a picture of what might happen to energy in the future. Using the Long-Range Energy Alternatives Planning (LEAP) modelling tool, a set of energy policies have been simulated

    Cape Town energy futures: Policies and scenarios for sustainable city energy development

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    The purpose of this report is to develop some scenarios for Cape Town’s energy future. The simulation model, the Long-Range Energy Alternatives Planning (LEAP) system, has been used to simulate how energy might develop in Cape Town over the twenty years from 2000 to 2020. These developments are driven not only by the nature of the energy sector itself, but also by broader factors, notably population, household size, economic growth (which may vary by sector) and other factors. The report builds on previous work done on the ‘state of energy’ for Cape Town (CCT & SEA 2003). That report was useful in capturing the current status of energy in the city, informed the City Energy Strategy conference and Cape Town’s own strategy (SEA, CCT & ICLEI 2003) and provided the starting data for this study. This report takes the work further in developing a tool that simulates what might happen to energy in the future, in a business-as-usual case and with policy interventions. A range of policy interventions are selected, and how these would change energy development in the city is examined, compared to a reference case. Interventions were selected based on various criteria, including implementation cost and technical feasibility, environmental priority, and political will. Different policies can be grouped for their sectors – industry, residential, commercial, government and transport – and also combined to form multiple-policy scenarios. These scenarios should be understood as a series of ‘what if’ questions, e.g. what if the City of Cape Town increased efficiency in its own buildings. The scenarios are not any prediction of the future, nor are any of these scenarios considered more likely than others. Instead, we report the implications of different policies and scenarios. The implications for energy, environment (both local pollutants and global greenhouse gases) and development are of particular interest. This study reports the cost implications of different scenarios only to a limited extent, as to do this adequately for many of the scenarios is beyond the scope of the project. Areas where further work is required, including around costing, are also identified

    Human Cytomegaloviruses Expressing Yellow Fluorescent Fusion Proteins - Characterization and Use in Antiviral Screening

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    Recombinant viruses labelled with fluorescent proteins are useful tools in molecular virology with multiple applications (e.g., studies on intracellular trafficking, protein localization, or gene activity). We generated by homologous recombination three recombinant cytomegaloviruses carrying the enhanced yellow fluorescent protein (EYFP) fused with the viral proteins IE-2, ppUL32 (pp150), and ppUL83 (pp65). In growth kinetics, the three viruses behaved all like wild type, even at low multiplicity of infection (MOI). The expression of all three fusion proteins was detected, and their respective localizations were the same as for the unmodified proteins in wild-type virus–infected cells. We established the in vivo measurement of fluorescence intensity and used the recombinant viruses to measure inhibition of viral replication by neutralizing antibodies or antiviral substances. The use of these viruses in a pilot screen based on fluorescence intensity and high-content analysis identified cellular kinase inhibitors that block viral replication. In summary, these viruses with individually EYFP-tagged proteins will be useful to study antiviral substances and the dynamics of viral infection in cell culture

    Maximum illumination control system for photovoltaic panels orientation

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    The article describes the solar tracker for photovoltaic panels and energy systems based on such devices. The authors introduce the results of calculations of the solar tracker application effectiveness for solar energy systems and the results of the field testing in Tomsk

    Анализ методов и средств контроля качества очистки воды

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    Цель исследований: анализ методов и средств контроля качества очистки воды, проведение исследований по обезжелезиванию воды с применением сорбента СБС-2, с контролем качества очищенной воды спектрофотометрическим методом анализа.The purpose of the research: analysis of methods and means of quality control of water treatment, conducting studies on deironing water using SBS-2 sorbent, with quality control of purified water by spectrophotometric analysis
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