1,366 research outputs found

    Bioethics: Reincarnation of Natural Philosophy in Modern Science

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    The theory of evolution of complex and comprising of human systems and algorithm for its constructing are the synthesis of evolutionary epistemology, philosophical anthropology and concrete scientific empirical basis in modern (transdisciplinary) science. «Trans-disciplinary» in the context is interpreted as a completely new epistemological situation, which is fraught with the initiation of a civilizational crisis. Philosophy and ideology of technogenic civilization is based on the possibility of unambiguous demarcation of public value and descriptive scientific discourses (1), and the object and subject of the cognitive process (2). Both of these attributes are no longer valid. For mass, everyday consciousness and institutional philosophical tradition it is intuitively obvious that having the ability to control the evolutionary process, Homo sapiens came close to the borders of their own biological and cultural identity. The spontaneous coevolutionary process of interaction between the «subject» (rational living organisms) and the «object» (material world), is the teleological trend of the movement towards the complete rationalization of the World as It Is, its merger with the World of Due. The stratification of the global evolutionary process into selective and semantic (teleological) coevolutionary and therefore ontologically inseparable components follows. With the entry of anthropogenic civilization into the stage of the information society, firsty, the post-academic phase of the historical evolution of scientific rationality began, the attributes of which are the specific methodology of scientific knowledge, scientific ethos and ontology. Bioethics as a phenomenon of intellectual culture represents a natural philosophical core of modern post- academic (human-dimensional) science, in which the ethical neutrality of scientific theory principle is inapplicable, and elements of public-axiological and scientific-descriptive discourses are integrated into a single logic construction. As result, hermeneutics precedes epistemology not only methodologically, but also meaningfully, and natural philosophy is regaining the status of the backbone of the theory of evolution – in an explicit for

    Сo-evolutionary biosemantics of evolutionary risk at technogenic civilization: Hiroshima, Chernobyl – Fukushima and further…

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    From Chernobyl to Fukushima, it became clear that the technology is a system evolutionary factor, and the consequences of man-made disasters, as the actualization of risk related to changes in the social heredity (cultural transmission) elements. The uniqueness of the human phenomenon is a characteristic of the system arising out of the nonlinear interaction of biological, cultural and techno-rationalistic adaptive modules. Distribution emerging adaptive innovation within each module is in accordance with the two algorithms that are characterized by the dominance of vertical (transgenerational) and horizontal (infection, contagion) adaptive streams of information, respectively. Evolutionary risk is the result of an imbalance of autonomous adaptive systems have an essential attribute of adaptibe strategy of Homo. Technological civilization inherent predisposition to overcome their dependence on biological and physical components. This feature serves as an enhancer of the evolutionary generating conjugate with the scientific and technological development risk We can assume the existence of an intention of Western mentality to a high priority (positive or negative) of technological modifications micro-social environment and post- Soviet (East Slavic) mentality to modification of macro-social system

    Experimental Flow Analysis in a Modern Turbine Rear Structure with 3D Polygonal Shroud Under Realistic Flow Conditions

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    Continuous advancement of the existing design of turbine rear structure (TRS) leads to new challenges in terms of aerodynamic efficiency. This work presents experimental aero studies of the effect of the 3D polygonal shroud in the TRS comprising several types of guide vanes representative of a modern TRS: regular vanes, thickened vanes, and vanes with a mount bump. The experiments were performed in an engine-realistic facility for a fixed Reynolds number, 350000, and three operation points based on a low-pressure turbine (LPT) exit swirl angle. The current study shows that the thickened vane handles the on-design and off-design conditions with good aerodynamic performance. It is observed that a shroud bump significantly affects the pressure losses because of the additional vorticity region created from the bump itself, and it has an upstream influence on the outlet flow from the LPT.Disclaimer:\ua0The content of this article reflects only the authors’ view. The Clean Sky 2 Joint Undertaking is not responsible for any use that may be made of the information it contains

    Complex driver movement mathematical model of the tractive rolling stock

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    The paper developed a complex mathematical model of the rolling stock movement that takes into account the parallel operation of two real traction asynchronous engines of the first traction railway carriage and one equivalent engine of the second traction railway carriage of the diesel train in all modes of work, as well as the main types of oscillations of the train wagons, the forces distribution of interaction between them during the movement, as well as longitudinal and transverse elastic couplings of the wheel pair with the carriage of the car. In the article, the adequacy of the processes, resulting from threedimensional modeling, processes occurring in the real diesel train DEL-02. On the complex mathematical model, were carried out tests on the effect of the main types of wagon oscillations to the motion and energy expenditure of a diesel train

    Evolutionary Semantics of Anthropogenesis and Bioethics of Nbic-Technologies

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    The co-evolutionary concept of tri-modal stable evolutionary strategy (SESH) of Homo sapiens is developed. The concept based on the principle of evolutionary complementarity of anthropogenesis: value of evolutionary risk and evolutionary path of human evolution are defined by descriptive (evolutionary efficiency) and creative-teleological (evolutionary correctness) parameters simultaneously, that cannot be instrumental reduced to others ones. Resulting volume of both parameters define the vectors of human evolution by two gear mechanism ˗ genetic and cultural co-evolution and techno-humanitarian balance. Explanatory model and methodology of evaluation of creatively teleological evolutionary risk component of NBIC technological complex is proposed. The mechanism of influence of each module on the evolution of the two remaining modules of SESH a priori can be twofold: (1) informational co-evolution (direct selective pressure); (2) semantic co-evolution (time-varying semantic code, the compliance of the biological, socio- cultural and techno-rationalist adaptive modules of human stable evolutionary strategy). More rapidly evolving autonomous element of the co-evolutionary pair becomes making sense factor for the partner. Semantic co-evolution is the discrete acquisition of adaptive significance of individual alleles by changing socio-cultural types, manifested as an increase in the genetic variability of populations of Homo sapiens, and domesticated species parallel to socio-culturogenesis. The socio- cultural landscape leads to drastically difference of direction in biological evolution of Atlantic and East-Slavic ethnicities/civilizations

    The problem of estimation of evolutionary risk of High Tech in the concept of stable adaptive strategy of Homo sapiens

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    the problem of estimation of High Hume (NBIC) technogenic evolutionary risks is analysed as part of concept of 3-components evolutionary strategy of Homo sapien

    Experimental study on the low-pressure turbine wake interaction and development in the turbine rear structure

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    The aerodynamic characteristics of advanced turbine rear structures (TRSs) could be affected by the interaction between unsteady flow developed from low-pressure turbine (LPT) and outlet guide vanes (OGVs). Consequently, analyzing the details of the interactions between the rotor wakes, stator wakes and OGVs is essential to enhance the aerodynamic efficiency of the modern TRS. This paper presents time resolved flow field measurements in the TRS at engine representative flow conditions. Experiments were performed in an annular large-scale 1.5 stage turbine facility at Chalmers University of Technology, Laboratory of Fluid and Thermal Sciences. The facility provides engine-realistic boundary conditions for the TRS and experimental data were acquired using 5-hole and 7-hole probes (5HP and 7HP), hot-wire anemometry (HW) and Particle Image Velocimetry (PIV). The PIV and HW measurements were conducted for the first time to enhance the understanding of unsteady flow phenomena and to investigate the development of TRS inflow structures. The observed unsteady interaction mechanism between the rotor wakes, stator wakes and OGV is of prime interest and investigated in detail. The breakdown of rotor and stator wakes through the TRS are documented and the OGV wake is analysed in detail by PIV

    Detailed Experimental Study of the Flow in a Turbine Rear Structure at Engine Realistic Flow Conditions

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    A good aerodynamic design of the turbine rear structure (TRS) is crucial for improving efficiency and reducing emissions from aero-engines. This paper presents a detailed experimental evaluation of an engine realistic TRS which was studied in an engine-realistic rig at Chalmers University of Technology, Sweden. The TRS test section was equipped with three types of outlet guide vanes (OGVs) which are typical of modern state-of-the-art TRS: regular vanes, thickened vanes, and vanes with an engine mount recess (a shroud bump). Each of the three vane geometries was studied under on-design and off-design conditions at a fixed flow Reynolds number of 235,000. The study shows that the off-design performance of the TRS strongly depends on the presence of the local flow separation on the OGV suction side near the hub, which is greatly affected by the vane pressure distribution and inlet conditions. Similarly, the OGVs with increased thickness and with a vane shroud bump are shown to affect the performance of the TRS by influencing the losses on the OGV suction side near the hub. Furthermore, the presence of the bump is shown to have a noticeable upstream influence on the outlet flow from the low-pressure turbine and a noticeable downstream influence on the outlet flow from the TRS

    STABLE ADAPTIVE STRATEGY of HOMO SAPIENS and EVOLUTIONARY RISK of HIGH TECH. Transdisciplinary essay

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    The co-evolutionary concept of Three-modal stable evolutionary strategy of Homo sapiens is developed. The concept based on the principle of evolutionary complementarity of anthropogenesis: value of evolutionary risk and evolutionary path of human evolution are defined by descriptive (evolutionary efficiency) and creative-teleological (evolutionary correctly) parameters simultaneously, that cannot be instrumental reduced to others ones. Resulting volume of both parameters define the trends of biological, social, cultural and techno-rationalistic human evolution by two gear mechanism ˗ gene-cultural co-evolution and techno- humanitarian balance. The resultant each of them can estimated by the ratio of socio-psychological predispositions of humanization/dehumanization in mentality. Explanatory model and methodology of evaluation of creatively teleological evolutionary risk component of NBIC technological complex is proposed. Integral part of the model is evolutionary semantics (time-varying semantic code, the compliance of the biological, socio-cultural and techno-rationalist adaptive modules of human stable evolutionary strategy)

    High Hume (Bio-power and Bio-policy in Society of Risk). M., 2009. 319 p.

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    Human simultaneously is the acting person of a few autonomous and interdepending forms of evolutional process. Accordingly, it is possible to select three forms of adaptation and three constituents of evolutional strategy of survival of humanity – biological, sociocultural and technological adaptations. The actual and potential consequences of development of so-called High Hume technologies (technologies of the guided evolution) most essential from major technological adaptations of humanity are analyzed. The phenomenon of bio-power within the framework of global coevolutional methodology as one of central elements of mechanism of mutual co-ordination of biological and sociocultural forms of evolutional process from one side and technocultural balance, with other is examined
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