Prabhat Kumar College

About: Prabhat Kumar College is a based out in . It is known for research contribution in the topics: Schiff base & Scalar field. The organization has 39 authors who have published 109 publications receiving 574 citations.

An analysis of various function in wireless sensor network applied in Precision Agriculture

Abstract: Precision Agriculture is the idea of instantaneous observation of environmental and field parameters like soil moisture, humidity, temperature, soil PH etc. and transfer of the values of those parameters to the remote central server, which on the basis of these values, takes appropriate action to control the use of different resources like pesticides, water, fertilizer etc. in an optimized way in order to maximize the crop yield in terms of both quality and quantity. In Precision Agriculture, the farmers monitor and analyze the values of the field parameters in real time by using the Wireless Sensor Network (WSN) technology with the help of a varied range of sensors. This information further helps in making the exact judgment for controlling the resource allocation. This survey paper explores different existing methods, communication technologies and protocols related to sensor based data collection, monitoring and control system. It also reviews the application of WSN in Precision Agriculture environment and successfully points out the future scope of the work in this domain.

Bovine serum albumin interactive one dimensional hexanuclear manganese(III) complex: synthesis, structure, binding and molecular docking studies

Abstract: The reaction of MeO-salox (4-methoxy salicylaldehyde-oxime) with Mn(OAc)2·4H2O in a 1 : 1 molar ratio in methanol medium and in the presence of tetrabutylammonium hydroxide yields the hexanuclear complex [Mn6O2(4-MeO-salox)6(N3)2(MeOH)2(H2O)2·2H2O]n (1). Single crystal X-ray diffraction reveals that complex 1 adopts a 1D chain network facilitated by two EE-azido bridges. BSA binding studies reveal that complex 1 causes fluorescence quenching of BSA through both static and dynamic mechanisms. A 1 : 1 binding mode is established through a Benesi–Hildebrand plot with an intrinsic binding constant of (3.40 ± 0.01) × 104 M−1. The circular dichroism studies indicate variation of the secondary structure of BSA upon binding with complex 1. The site-selective binding and molecular docking studies reveal the probable binding site of complex 1 is at the mouth of site I in subdomain IIA of BSA.

Tunneling escape rate in dc-biased periodic multibarrier semiconductor heterostructures

Abstract: The tunneling escape rate is calculated on the basis of ballistic miniband transport of electron in the presence of external electric field. The variation of the miniband escape rate is reported as functions of barrier and well widths as well as the externally applied bias. Interesting features with regard to the electric field modulation are observed in the semiconductor heterostructures with small barrier and well widths. For the system with constant periodic length, the maximum confinement of carriers is found for the well width almost equal to half of the barrier width.

Multi-wave-mixing-induced nonlinear modulation of diffraction peaks in an opto-atomic grating

Abstract: We propose an atomic model in close-loop configuration, which exhibits controllable symmetric and asymmetric evolution of significantly enhanced diffraction peaks of the weak probe beam in an opto-atomic grating at far-field regime. Such results are obtained by the linear and nonlinear modulation of the intensities of the diffraction peaks as a result of multi-wave-mixing-induced modification of spatially modulated coherence in a closed four-level atomic system. Novelty of the results lies in predicting the diffraction pattern with uniform peak height due to the dominance of the amplitude part of the grating-transfer-function at the condition of exact atom-field resonance, which is unique to the present model. Efficacy of the present scheme is to apply it in producing nonlinear light generated by four-wave-mixing-induced control of spatially modulated coherence effect. The work also finds its importance for its applicability in the field of all-optical devices.