221 research outputs found

    Money as a Global Public Good

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    The main objective of this paper is to discuss a complex and yet not taken in consideration global public good: money. Money is a social convention created and accepted by people in order to facilitate economic transactions, being a symbol, without an intrinsic value (fiduciary money). It is universally used and it has value only in connection with the products and services that can be acquired, based on peopleā€™s consent and their psychological acceptance. In other words, its value lies in the purchasing power given by the quantity of commodities and services that can be bought with money. During history, as people began to become fully aware of the importance of money for their own survival, economic growth and development, institutions were created to manage and pass the necessary rules and regulations to grant stability to the financial intermediation process. The entire process was possible because money were always perceived as a particular ā€œassetā€: to society as a whole and to each individual as well. The strength of each currency reflects the strength of the public authorities that contribute to its creation (central banks, government, and society) as well as the strength of the economy it reflects. Besides its social value, money bear psychological value for each individual, as they serve in facilitating the fulfilment of necessities, dreams, of all people could ever want or need in their lives. Moreover, money can be regarded as a constant throughout history: changeable over time and yet the same, of vital importance in peopleā€™s lives.money, global public good, social and psychological value

    KINEMATICS OF MATERIAL POINT ON THE COCHLEOID

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    They are shown the geometrical considerations and the properties of cochleoid, a flat curve in thespiralā€™s family. Determine the positions, velocities and accelerations of material point in motion on thecochleoid. They are obtained diagrams, which are interpreted

    Research Regarding the Wear Level for a New Constructive Solution of a Cutting Tool

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    The paper presents a study of wear made to implement a constructive solutionĀ for a new cutting tool. The design of the cutting tool can be checked from aĀ functional perspective, as well as reliability during the cutting process (processĀ simulation). The purpose of the cutting process simulation is to check the newĀ solution using the finite element analysis method. The criterion to assess theĀ effectiveness of the constructive solution is the study of the tool wear levelĀ depending on cutting regime parameters. The implementation of the wear model inĀ the DEFORM software was used to establish the wear level

    The Dragonbear and the Grey Rhinos. The European Union Faced with the Rise of the China-Russia Partnership

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    China and Russia have been developing a strategic partnership over the last decade or more. This serves them to assert their own perspectives in international relations and cooperation to alter the liberal world order. The article is analysing the dimensions of this partnership, as well as asymmetries between the two partners. Russia does not have too many tools nowadays at its disposal to counter China's rise and the power gap between the two is widening every day. Unlike Russia, which does not have many foreign policy alternatives as relations with the West have worsened drastically, China is often courted by both Westerners and non-Westerners. In this context, the European Union seems to be unprepared, at a time when the EU-US relations have suffered during the Trump administration, and all circles are demanding a reset of the transatlantic relationship. Bidenā€™s change in tone regarding the transatlantic relations seems insufficient, as little progress is being made on delicate issues like trade, technology, climate, and China. The EU is unprepared to face the ā€˜grey rhinosā€™, the serious problems generated by the rise of China and of the China-Russia partnership. The article identifies and discusses the most important ā€˜grey rhinosā€™ the EU needs to deal with

    R-R-RTR MECHANISM PATHS

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    Letā€™s consider a mechanism with two conducting elements and a RTR dyad and the paths of a point onthe connecting rod with variable length are determined. Letā€™s consider the movements of the conductingelements correlated through linear relations. There are cases analysed when movement is intermittent or when aconducting element performs more rotations than the othe

    Mapping soil erosion susceptibility using GIS techniques within the Danube floodplain, the Calafat - Turnu Măgurele sector (Romania)

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    The Danube floodplain, the Calafat - Turnu Măgurele sector, through its main features (topographic and climatic characteristics, land use and soil type) and human activities, constitutes an area exposed to soil erosion. The main objective of the present research is to map soil erosion susceptibility using the GIS techniques for the computation and representation of areas, which are exposed to soil erosion correlated with the field data for the validation. Analyzing the entire model, the relatively simple methodology, the database consistence, the comparability of the results with the existent soil erosion values at national and local scale, we can say that the model was applied with success in the studied area (areas and classes of water erosion susceptibility: very low, low, moderate, high - Ciupercenii Noi, Desa, Măceşu de Jos, Grojdibodu, Orlea, very high - Rast, Negoi, Catane, Bistreţ, Goicea; areas and classes of wind erosion susceptibility: very low, low, moderate - Ciupercenii Noi, Dăbuleni, Ianca, high - Calafat, Poiana Mare, Desa, Goicea, Piscu Vechi, very high - Poiana Mare, Rast, Negoi, Bistreţ, Gighera, Orlea. The soil erosion susceptibility map can be useful for planning erosion control measures and for selecting suitable sites for runoff plot experiments

    Mathematical Modeling of the Relation between Electrospun Nanofibers Characteristics and the Process Parameters

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    Electrospinning, the most favorable process of obtaining nanofibers, is capable of processing solution or melt polymers, ceramic materials or metals in many morphological variants, thus providing diverse functionalities. The chapter reviews the main ways in which nanofibersā€™ characteristics can be influenced by solution parameters, process parameters and ambient conditions, afterwards focusing on the role of some of the most significant electrospinning parameters (applied voltage, flow rate, nozzle to collector distance) on the diameter of the nanofibers. Experimental studies to model the influence of process parameters in the case of electrospinning polyetherimide solutions are presented. Response surface methodology and MATLAB simulation software have been used to obtain the mathematical models that indicate the most favorable parameters
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