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Aims to define the conceptual tools of Gregory Bateson's epistemology – the nature of difference, logical typing, and recursion – and to apply this to understanding how we…
Aims to define the conceptual tools of Gregory Bateson's epistemology – the nature of difference, logical typing, and recursion – and to apply this to understanding how we can approach the analysis of ethnographic reports of the Bushman n/om‐kxaosi (shamans) and the Bushman rock art of Southern Africa.
The paper argues that kinesthetic interaction with n/om‐kxaosi provides a vehicle for learning their way of construing the world.
The n/om‐kxaosi have a kinesthetic lexicon and a set of dominant metaphors rooted to their ecstatic body expression that provide coherence to their ways of healing and spiritual understanding. The previously assumed incoherent nature of Bushman religious views noted by anthropologists is argued to have been the consequence of underestimating the importance Bushman thinking gives to circularity and transformation of all aspects of their experience.
Illuminates the analysis of the Bushman culture.
This paper aims to propose a novel integrated control method (ICM) for high-power-density non-inverting interleaved buck-boost DC-DC converter. To achieve high power…
This paper aims to propose a novel integrated control method (ICM) for high-power-density non-inverting interleaved buck-boost DC-DC converter. To achieve high power conversion by conventional single phase DC-DC converter, inductor value must be increased. This converter is not suitable for industrial and high-power applications as large inductor value will increase the inductor current ripple. Thus, two-phase non-inverting interleaved buck-boost DC-DC converter is proposed.
The proposed ICM approach is based on the theory of integrated dynamic modeling of continuous conduction mode (CCM), discontinuous conduction mode and synchronizing parallel operation mode. In addition, it involves the output voltage controller with inner current loop (inductor current controller) to make a fair balancing between two stages. To ensure fast transient performance, proposed digital ICM is implemented based on a TMS320F28335 digital signal microprocessor.
The results verify the effectiveness of the proposed ICM algorithm to achieve high voltage regulating (under 0.01 per cent), very low inductor current ripple (for boost is 1.96 per cent, for buck is 1.1) and fair input current balance between two stages (unbalancing current less than 0.5A).
The proposed new ICM design procedure is developed satisfactorily to ensure fast transient response even under high load variation and the solving R right-half-plane HP zeros of the CCM. In addition, the proposed method can equally divide the input current of stages and stable different parallel operation modes with large input voltage variations.