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Auflistung Environmental Informatics 2014 nach Erscheinungsdatum
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- KonferenzbeitragExploring Environmental Sustainability Performance in the Cellular Telecommunication Industry in Egypt(Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2014) El Alfy, Shahira; Kortam, WaelThe paper explores environmental sustainability performance of the cellular telecommunication companies in Egypt and examines its drivers. A conceptual model linking institutional environment, market orientation, financial resources, attitude towards natural environment, proenvironmental behavioural intentions and environmental sustainability performance together is developed and tested in order to investigate and verify the relationships among these variables. The result provides insights on the nature of the relationship among these variables for finding effective means towards the improvement of environmental sustainability performance.
- KonferenzbeitragWind Power Prediction with Cross-Correlation Weighted Nearest Neighbors(Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2014) Treiber, Nils André; Kramer, OliverA precise wind power prediction is important for the integration of wind energy into the power grid. Besides numerical weather models for short-term predictions, there is a trend towards the development of statistical data-driven models that can outperform the classical forecast models [1]. In this paper, we improve a statistical prediction model proposed by Kramer and Gieseke [5], by employing a cross-correlation weighted k-nearest neighbor regression model (x-kNN). We demonstrate its superior performance by the comparison with the standard u-kNN method. Even if different pre-processing steps are considered, our regression technique achieves a comparably high accuracy.
- KonferenzbeitragCloud Computing for Mobile Devices - Reducing Energy Consumption(Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2014) Strokova, Veronika; Sapegin, Sergey; Winter, AndreasBeing powered by the batteries that are limited in their capacity is one of the main restrictions of mobile devices. Further enhancement of their characteristics and mobile Internet mounting speed incite the growth of user’s demands. Users request the most sophisticated applications to work rapidly and being available all the time. Thus, availability of mobile devices should not be decreased by inefficient energy consumption. This paper presents the approach which is able to decrease the power consumption on mobile gadgets. The core idea lies in migrating parts of the application’s functionality to remote servers in order to reduce energy consumption on the mobile device. Heavy-loaded code blocks are extracted from mobile apps and transferred to server-side applications. It is expected that, if energy spent on client-server communication is less than power needed to execute the task on phone or tablet; battery life time can be extended on the mobile device. Depending on the amount of data, available internet speed, and cloud computing capabilities, systems performance can also be affected. Experiments are conducted on migrating three Android applications to the cloud. The paper describes the migration approach, shows changes in energy consumption and demonstrates conditions to be met, when doing energy migrations to the cloud, successfully.
- KonferenzbeitragElectronic waste risk assessment and management in Ghana(Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2014) Nukpezah, Daniel; Okine, Henry Ayikai; Ofori, Benjamin; Ababio, MartinThe current management practice regarding e-waste is not the best. Mostly crude methods are used for e-waste dismantling and material recovery. Flow of E-waste into Ghana comes mostly from Europe and North America. Activities in the e-waste recycling chain include manual dismantling, open burning to recover metals and open dumping of residual fractions. Such practices release hazardous chemicals into the environment. Indeed comparing heavy metals concentration in urine of ewaste workers with those of the control group, it was observed that urinary Cu (mean 0.827 mg/L) and zinc (mean 0.63 mg/L) levels for Agbogbloshie e-waste workers were significantly high compared with those of the control. Considering the fact that e-waste trading and recycling activities provide participants with livelihood opportunities, and considering the risk posed to health and environment, we make the following recommendations: - Need to improve enforcement of related transboundary regulation in both countries of destination and countries of origin - Enactment of national e-waste legislation and improvement of enforcement of existing legislation - Strategies aimed at extending product life cycle of used computers such as formalizing repairs and refurbishment of UEEE through training and loan grants to small businesses involved in UEEE repairs - Restricting the age limit of UEEE imported into country to minimize near end of life computer imports - Sharing of information, experience and intelligence among relevant enforcement agencies in tackling issues of transboundary e-waste shipment. - Mainstream education on e-waste impact among scrap dealers with a view to establish a culture of risk reduction through the use of Personal Protective Equipment (PPE) Establish a national formal e-waste management system in place with sound environmental management framework since e-waste contains both beneficial and toxic substances. In summary therefore, consideration should be given to formalizing the current e-waste recycling regime in the country since it provides people with livelihood alternatives. Legislation regulating the import of UEEE and restriction of those near EOL, provision of personal protective equipment (PPE’s), regulation of the activities of scrap dealers and increased port security to reduce the import of none functional UEEE’s could help reduce the current menace e-waste inflicts on the Ghanaian society.
- KonferenzbeitragCO2 Emission from Vegetable Oil plants Using IPCC Guideline 2006: Iran’s Experience(Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2014) Borgheipour, Hasti; Kargari, Nargess; Farzad, Tabassom H.Vegetable oil plants are one of the most important energy consumer industries and Iranian vegetable oil plants don’t have a suitable energy saving. In order to estimate the amount of greenhouse gasses emission of vegetable oil plants of Iran, calculations have been done by Tier l method based on IPCC guideline (2006) and a designed software usage. This method is based on emission factors. Total emission of CO2 from vegetable oil refinery plants and vegetable oil extraction plants for 5 years (2005-2009) is respectively estimated to be about 2195.3 Gg and 488.1 Gg. It is necessary to mention that CO2 emission trend in the studied period is not the same, which shows that energy saving management is not the same in different years. Therefore it is essential to provide the energy management program for vegetable oil plants in Iran.
- KonferenzbeitragLike! You saved #energy today. Fostering Energy Efficiency in Buildings – The implementation of social media patterns as symbols in Building Management Systems‘ Graphical User Interfaces using Peirce’s semeiosis as a communication concep(Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2014) Tribel, Andreea; Geffken, Jan; Opel, OliverThis paper starts with a short definition of the research field sustainable ambient computing (SAC), which unites ambient intelligence, and ubiquitous computing. SAC takes into account not only the ecological aspects of life cycle assessment and energy efficiency, but also includes HCI as main pillar. Part of SAC is building management systems, which, in their current form, struggle with lacking user integration and rebound effects. The prospect is to build, implement and test a graphical user interface in a new energy efficient building at Leuphana University, which provides a convenient surrounding and an user-friendly system at the same time. According to the pragmaticist approach of C. S. Peirce’s sign theory, we propose abduction as a method of inference and semeiosis as a triadic communication process. Regarding the spread of social media usage, we suggest using elementary communication patterns taken from this field for building management systems, because known communication patterns encourage the usage of uncommon ambient computing systems. Hence, acceptance, a major challenge when trying to successfully integrate users, is facilitated. Here fore we looked on typical communication patterns of the most used social media platforms. A successful usage of these patterns in this specific context will raise the perception und knowledge of energy consumption, and can be expected also to change habits on the long run.
- KonferenzbeitragCertifying Energy Efficiency of Android Applications(Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2014) Meier, Johannes; Ostendorp, Marie-Christin; Jelschen, Jan; Winter, AndreasWhile smartphone and tablet functionality is increasing, battery runtime goes down. Both users and software developers are not always aware of the energy consumed by applications. Without this information, users cannot choose energy-efficient apps to prevent battery drain. Awareness of energy consumption would also entice app developers to implement more energy-efficient apps to remain competitive. This paper presents a certification process and corresponding Android tool support for comparing apps regarding energy efficiency. It is demonstrated using notepad apps.
- KonferenzbeitragUsing Information Security as a Facet of Trustworthiness for Self-Organizing Agents in Energy Coalition Formation Processes(Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2014) Rosinger, Christine; Uslar, Mathias; Sauer, JürgenTrustworthiness - besides other decision making factors like technical or regulatory requirements - can be one key aspect for the decision making in coalition formation processes with agents in the energy domain. In this paper the trustworthiness facet information security is used to describe the realized security measures and standards of the systems for coalising energy agents as one trust building factor. These realized security measures are assessed and used for the decision making in the coalition formation process. This contribution shows also some of the results for developing a trust model for a multi-agent-based energy management system in the “Smart Nord” project.
- KonferenzbeitragApplication of Software and Web-based Tools for Sustainability Management in Small and Medium-Sized Enterprises(Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2014) Johnson, Matthew; Viere, Tobias; Schaltegger, Stefan; Halberstadt, JantjeRecently, new approaches to organizational level sustainability management and reporting have emerged in the form of software and web-based applications. At first glance, it appears that such software and web-tools are applicable in small and medium-sized enterprises since they offer userfriendly and cost-effective alternatives to implement, manage and report on company-wide sustainability activities. Nevertheless, it remains academically and practically uncertain if such technologies will be adopted by a great number of SMEs. Using the Technology-Organization- Environment (TOE) model as a theoretical framework and empirical data from a recent survey with 1,250 German SMEs, this paper investigates various firm-internal and external factors that might influence managers’ decisions to adopt or reject this new technology. As a result, this paper can help determine which factors play a role in the adoption of sustainability management software and web-tools in SMEs.
- KonferenzbeitragElectricity Associations as Marked-based Steering Mechanism and Alternative to Fixed Feed-in Tariffs(Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2014) Meyer, Sören Christian; Breitner, Michael HansThis paper describes a business model for local electricity supply and demand steering using flexible electricity prices. Therefore it evaluates first the composition of the electricity price. Secondly it estimates the future renewable electricity generation cost. Therefore future renewable electricity generation prime cost are calculated with a combination of historically derived learning rates and global market growth estimations, both derived from literature. Thirdly it evaluates the tax burden on local traded electricity. As result a business model and legal construct which reduces the tax and levy burden on electricity is identified as crucial factor for flexible electricity prices. With electricity associations this paper identifies such a judicial construct. Finally centralised demand steering with smart flexible agents like electric vehicles, dishwasher and washer-dryer is described. This steering allows to synchronize renewable electricity generation from photovoltaic power plants, wind turbines and combined heat and power and the local electricity demand.