899 research outputs found

    Finanční analýza společnosti Oriflame

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    Financial analysis is based on the actual economic and business affairs. It adopts a certain method to systematically analyze and evaluate the past and present business results, financial status and cash flow of the company, and evaluates and predicts the economic activities of the company. This article use financial analysis methodology to analyze the financial situation of Oriflame company from 2013 to 2017. The article divides into five chapter; The first chapter is a brief introduction of financial analysis. The second chapter is the description of financial analysis methodology, which includes the introduction of financial statements, common-size analysis and financial ratio analysis.The third chapter is the financial characteristics of Oriflame company, which includes introduction of Oriflame company and common-size analysis.The fourth chapter is the financial analysis of Oriflame company, which use four kinds of financial ratios.The last chapter is the conclusion of the financial analysis results of Oriflame company. After analyzing the financial situation, there are also some recommendation for Oriflame which can make Oriflame improve the profitability.Financial analysis is based on the actual economic and business affairs. It adopts a certain method to systematically analyze and evaluate the past and present business results, financial status and cash flow of the company, and evaluates and predicts the economic activities of the company. This article use financial analysis methodology to analyze the financial situation of Oriflame company from 2013 to 2017. The article divides into five chapter; The first chapter is a brief introduction of financial analysis. The second chapter is the description of financial analysis methodology, which includes the introduction of financial statements, common-size analysis and financial ratio analysis.The third chapter is the financial characteristics of Oriflame company, which includes introduction of Oriflame company and common-size analysis.The fourth chapter is the financial analysis of Oriflame company, which use four kinds of financial ratios.The last chapter is the conclusion of the financial analysis results of Oriflame company. After analyzing the financial situation, there are also some recommendation for Oriflame which can make Oriflame improve the profitability.154 - Katedra financívelmi dobř

    Headwater streams contain amounts of heavy metal in an alpine forest in the upper reaches of the Yangtze River

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    Headwater streams are an essential link in the source and sink dynamics of heavy metals between terrestrial and aquatic ecosystems and are also critically important for downstream ecosystem processes and water quality. However, there is little available information about headwater streams. Therefore, the stream storage and distribution patterns of Cd, Pb, Ni, Cr, Cu, Mn and Zn were investigated in ten headwater streams of an Alpine forest located in the upper Yangtze River during the rainy season. The results indicated that the heavy metal storage per unit area of the investigated streams was as follows: 0.95 mg·m-2 for Cd, 8.36 mg m-2 for Pb, 1.98 mg m-2 for Ni, 136.98 mg m-2 for Cr, 9.29 mg m-2 for Cu, 433.39 mg m-2 for Mn and 29.07 mg m-2 for Zn; while the heavy metal storage per unit area of the catchment was as follows: 1.19 mg hm-2 for Cd, 10.47 mg hm-2 for Pb, 2.48 mg hm-2 for Ni, 171.62 mg hm-2 for Cr, 11.64 mg hm-2 for Cu, 542.99 mg hm-2 for Mn and 36.42 mg hm-2 for Zn. Headwater streams present remarkable potential for contamination, and plant debris from riparian forests may be the most important source of heavy metals, while the stream sediment acts as a significant sink for heavy metals. These results provide new perspectives and data for understanding the ecological links between alpine forests and watersheds

    Asynchronous RIS-assisted Localization: A Comprehensive Analysis of Fundamental Limits

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    The reconfigurable intelligent surface (RIS) has drawn considerable attention for its ability to enhance the performance of not only the wireless communication but also the indoor localization with low-cost. This paper investigates the performance limits of the RIS-based near-field localization in the asynchronous scenario, and analyzes the impact of each part of the cascaded channel on the localization performance. The Fisher information matrix (FIM) and the position error bound (PEB) are derived. Besides, we also derive the equivalent Fisher information (EFI) for the position-related intermediate parameters. Enabled by the derived EFI, we verify that both the ranging and bearing information of the user can be obtained when the near-field model is considered for the RIS-User equipment (UE) part of the channel, while only the direction of the UE can be inferred in the far-field scenario. This result is well known in the scenario that the curvature of arrival (COA) is directly sensed by the traditional active large-scale array, and we prove that it still holds when the COA is sensed passively by the large RIS. For the base station (BS)-RIS part of the channel, we reveal that this part of the channel determines the type of the gain provided by the BS antenna array. Besides, in the single-carrier, single snapshot case, it requires both the BS-RIS and the RIS-UE part of the channel works in the near-field scenario to localize the UE. We also show that the well-known focusing control scheme for RIS, which maximizes the received SNR, is not always a good choice and may degrade the localization performance in the asynchronous scenario. The simulation results validate the analytic work. The impact of the focusing control scheme on the PEB performances under synchronous and asynchronous conditions is also investigated
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