Shiv Prasad Kosta

Human blood liquid memristor

An experimental study on a physical model of memristor made from human blood (as material of resistor) is presented. The model manifests memristor characteristics as defined by Professor Leon Chua (1971), Strukov (2008) and William (2008). Speculative potential applications in human healthcare science and electronic memory circuit science/technology is envisaged.

A Theory of the Log-periodic Dipole Antenna†

ABSTRACT On the basis of experimentally known electrical properties, a log-periodic dipole (LPD) antenna can be divided into three regions, namely, (1) a short dipole region, (2) an active dipole region, and (3) an unexcited long dipole region. A mathematical expression for the radiation pattern of a LPD antenna is developed, assuming (a) the far field radiation pattern entirely due to the active dipole region, (b) the scaling factor T close to unity, (c) the existing mutual coupling effect to be approximately represented by the introduction of the end-fire antenna array condition, and (d) the unexcited long dipole region to function as a parasitic reflector. To simplify the analysis the proposed parasitic reflector is further assumed to be positioned just adjacent to the resonant dipole and is included in the active dipole region. Radiation patterns computed from the mathematical expression are compared with experimentally known patterns and found to be in reasonably good agreement.

Green biomass bistable transistor multivibrator

For the first time a biomass bistable transistor multivibrator using an NPN Philips transistor as the active device and freshly plucked green Champo (Plumaria rubra) leaf cuttings as electrical components (resistance R and capacitance C) has been realized. The frequency and other parameters of the generated pulses, along with the circuit configuration, are presented. The development envisages a novel march towards a green revolution in electronic circuitry.

Generalized Analysis of a Centre-fed Dipole Antenna with Feed-points Displaced Transverse to Dipole Axis†

ABSTRACT A generalized analysis of a centre-fed dipole antenna with feed-points displaced transverse to the dipole axis is presented. Mathematical expressions for the far field radiation pattern, radiation resistance, gain, directivity and effective aperture are developed. The variation in the properties of this dipole antenna for various values of feed-point displacement (transverse to the dipole axis), R, is discussed.

Study of the non-planar dipole antenna with transversely displaced feed-points †

A generalized analysis of the non-planar dipole antenna with transversely displaced feed-points is presented. This configuration is obtained by combining the two concepts. namely (a) the concept of inclined antenna and (b) the concept of displaced feed-points. The specific features of this antenna configuration is that it acts as a source of complex radiation, i.e. the field radiated by the antenna has three E vectors along the three orthogonal axes. Further, the effect of balanced and unbalanced feed as well as that of the displacement of the feed-points on the far-field radiation pattern radiation resistance, power gain, effective aperture and efficiency is evaluated. Typical plots and tables are given to elucidate the theoretical results. Some of the important applications of this configuration are also pointed out.

Human blood plasma-based electronic integrated circuit amplifier configuration

. Here, we report the first development of human plasma-based amplifier circuit in the dis-crete as well as integrated circuit (IC) configuration mode. Electrolytes in the human blood contain an enormous number of charge carriers such as positive and negative molecule/atom ions, which are electri-cally conducting media and therefore can be utilized for developing electronic circuit components and their application circuits. These electronic circuits obvi-ously have very high application impact potential towards bio-medical engineering and medical science and technology.The experimental human blood plasma serum sam-ple amplifier circuit layout with theoretical amplifier circuit is shown in

Bio-Logical Human Tissue Based Electronic Circuits - An Alternate to Drug Therapy for Sick-Man (A Perspective Visionary Concept)

Chemical drug based human disease healing (CDBHDH) is well established methodology in Medical sciences. The Physicians drug (medicine) dose given to a sick man interacts through chemical reaction with the complex polluted drugs of the sick man which results in the normalization of the disturbed (sick man) ion profiles. In this communication we advocate for the first time creation of an appropriate human tissue based electronic circuit (HTBEC) inside the human body (at appropriate determined location) to normalize the prevailing disturbed ion profiles of sick man and thus HTBEC can act as alternate to CDBHDH in some cases. After review of our relevant reported work a few conceptually realizable HTBEC (digital/analog) to demonstrate the feasibility is presented.

Human blood-based electronic transistor

For the first time, study on the ‘human blood-based electronic transistor’ (HBBET) is presented. Effects of variables like blood temperature, blood flow rate, and distance between the forming probes on the input/output characteristics as well as current gain factor β of the transistor are studied. Emerging applications of bio-material human tissue blood electronic circuits towards cyborg implants, human-machine interface, human disease detection/healing, human health sensors and digital signal processing is visualised.

Green biomass active electronic diode

For the first time, a biomass electronic junction functioning as a conventional electronic diode inside green leaves of Vinka-rosa and Plumeria rubra mass structure has been experimentally predicted and studied. The experimental diode demonstrated appropriate conventional electronic diode characteristics. The predicted diode junctions were operated for forward and reverse dc voltage biases in the range of ±1 to 10 and 1 to 30 V respectively. The studies revealed a strong functional dependence on the water content of the green leaf. These studies are sequential to the very recently reported research work of Kosta et al. on bioelectronics and soilelectronics. The study speculatively forecasts the beginning of a new revolutionary era of green biomass electronic circuitry.

Log periodic antenna with loop elements

Abstract An idea of log periodic antenna with loop elements is presented. The electrical properties (radiation patterns, radiation resistance and efficiency, etc.) of this configuration are discussed. The merits and demerits of the proposed configuration are pointed out.