The present investigation is dedicated to the study of propagation characteristics of electron acoustic (EA) waves and double layers in the quantum plasma system containing inertialess hot electrons and inertial cold electrons with stationary ions forming the charge neutralizing background. It is assumed that hot electrons follow κ-deformed Kaniadakis distribution as governed by the parameter κ. Using

MHD nanofluid has been of great importance due to its influential thermal aspects. Present study involves two dimensional MHD boundary layer slip flow of Cu-blood nanofluid towards a linearly stretching sheet under impact of Ohmic heating, viscous dissipation and suction/injection process. Influence of various shapes of Cu nanoparticles on temperature has also been taken into consideration. Governing

The performance of two dimensional (2D) hybrid wavelength/time optical code division multiple access (OCDMA) system is affected severely by the presence of noise at its physical layer. This noise is present in the guise of multiple access interference (MAI) and beat noise in OCDMA systems and degrades its performance. In this paper an attempt has been made to analyze the impact of noise in OCDMA system

The present study compares the accuracy in short-term noise monitoring strategies in comparison to the long-term monitoring strategies. The difference in short-term strategies from the annual average yearly sound levels is quantified as an error. The study extends the previous work reported exclusively for silence, industrial, commercial and residential zones in Indian scenario. The study re-affirms

In the present research work, La0.5Sr0.5Bi0.2Co0.4Fe0.4O3– cathode ceramic powder is synthesized through cost-effective flash pyrolysis process and followed by conventional sintering for IT-SOFCs. The Rietveld refinement program is used to determine the crystal structure, unit cell parameters and bond length. The XRD result indicates existence of a pure single phase of rhombohedral structure with

High dielectric constant and low loss nanocrystalline EuTiNbO6 ceramic was synthesized through a combustion technique. Phase purity, structure and particle size were examined using X-Ray diffraction, Fourier Transform Raman, Infrared spectroscopy and transmission electron microscopic techniques. The X-Ray diffraction study reveals that the sample crystallizes in orthorhombic aeschynite structure without

This paper presents two mechanisms for load cell calibrations. The first technique was to use deadweight to generate the required reference load (Applied load). The second method was to use a pressure piston gauge to generate the required calibration force. In both mechanisms, the setup and procedures are described. For verification the results of these methods were compared with international metrology

The micro-structures and vibrational modes of complex double perovskite oxides xLaAlO3 – (1-x)Ba(Mg1/2 W1/2 )O3[LABMW] have been characterized for different values of x (0.10, 0.25, 0.50, 0.75 and 0.90). The materials are synthesized by the solid state reaction technique. The Rietveld refinement of the XRD patterns shows rhombohedral R3􀴤C(161) phase for LaAlO3 and cubic Fm3m (225) phases for Ba(Mg1/2W1/2)O3

Synthesis of N-((1H-benzo[d]imidazol-1-yl)methyl)-N-(2-(trifluoromethyl)phenyl)-4,5-dihydrothiazol-2-amine was done followed by its characterization by various spectral techniques. DFT studies of the compound were performed at B3LYP level to study various structural parameters and thermodynamic variables. The correlation of observed transitions with the electronic transitions had been done via NBO

In this paper, a new photonic crystal fiber with hollow core filled by styrene (PCFS) has been designed for coherent supercontinuum generation. Its main optical characterisitcs are simulated for different lattice microstructure. The PCFS2,0.3 with lattice pitch =2 m, filling factor d/=0.3 and styrene core of diameter of 3.34 m, owning the flat and anomalous dispersion in the near infrared range

The present work comprises of spectroscopic, crystal and in silico studies of 4-chloro-N,Ndiphenylbenzamide. Synthesis of the compound was done followed by respective characterization by different spectral approaches. The in silico studies of title compound was further performed to ascertain various structural and geometrical parameters. All the studies were carried out at thetheory level B3LYP functional

The preparation of copper oxide (CuO) microspheres was done via hydrothermal route with the amphiphilic polymer pluronic (P123) as the capping agent. The XRD studies confirmed the monoclinic structure of the compound. The formation of microspheres were confirmed through SEM and TEM studies. The pseudo-capacitance properties were inferred with three electrode system. The cyclic voltammetry studies were

2021In this paper, we numerically design a refractive index-based surface plasmon fiber sensor by exploiting the optical characteristics of a commercially available side polished D-shaped photonic crystal fiber (PCF) using finite element method. The proposed sensor could work in the infrared regime for a wide range of analytes with refractive indices ranging from 1.33 to 1.36. The proposed sensor exhibits

2021Whenever we think about life sustainability, the most crucial thing that comes first in our mind is oxygen. In the current scenario, oxygen production has grown tremendously due to its increasing demand from health sectors: the complexity, availability, and high cost of oxygen taken as a drawback. So, the development of an efficient, durable, and cost-effective oxygen production technology is necessary

The present study reports an eco-friendly and rapid green synthesis method of silver nanoparticles (Ag-NPs). The silver nanoparticles were successfully synthesized using Chenopodium album as a reducing as well as capping agent simultaneously. The silver nanoparticles were characterized by UV-Visible absorption spectroscopy, Fourier transmission infrared (FT-IR) spectroscopy, X-ray diffraction (XRD)

Here, we are reporting electrical properties of Barium Titanate and Ni-Zn ferrite magneto-electric composites. Sr substituted barium titanate (BST = 90%) and MnO2 doped nickel zinc ferrite (NZF = 10%) were selected as individual phases for magneto-electric composite. Individual Ba0.9Sr0.1TiO3 and Ni0.8Zn0.2Fe2O4 were prepared separately through solid state reaction route. For structural analysis, the

The visible photoluminescence (PL) of ZnO is controversial for a long time. At present, the contribution of oxygen interstitial defects to yellow/orange emission from ZnO nanostructures is on debate. In this report, the origin of orange emission from solution- grown ZnO nanorods is investigated using excitation wavelength dependent photoluminescence PL, PL excitation and UV-Vis spectra. These results

Small lead sulphide films (PbS) are applied to the parts of the glass slide using a chemical bath processor (CBD) at room temperature for 60 minutes. The visual characteristics of the thin films were measured with a spectrophotometer and some solid state structures were determined by comparing the absorption data at a distance of 300-900 nm using software. The software used three types of simulation

The paper compares the experimental FT-IR, 1H- and 13C-NMR spectra of isatoic anhydride (ISA) with the Hartree-Fock (HF) and Density Functional Theory (DFT) calculations using three different basis sets (6-31+G(d,p), 6-311+G(d,p), ccpVTZ). The best compatibility between the experimental and theoretical FT-IR spectrum was observed with the use of B3LYP/6-31+G(d,p) method for ISA. Furthermore, the theoretical1H-

With development of smart technical applications many devices and technology are involved to resist the high intensity surrounding noise. High persistence of different noise in environment and living surrounding of human being is a challenging problem now days. Though the different technology and devices are invented to resist the noise level in the living surrounding but still it needs the development

This work investigates the performance enhancement of the slotted planar inverted-F antenna (PIFA) using Eccosorb MCS absorber. In order to check the enhancement of the antenna performance, structure of the PIFA antenna with and without absorber has been analyzed. This antenna structure consists of two slots etched on the patch, which are placed at a height of 0.18λ0 from the substrate. We show that

Bismuth molybdate (Bi2MoO6) was prepared through the solid-state route in the stoichiometric ratio followed by ball milling. The high-energy ball milling reduced the crystalline size from 96 to 35nm and increased the surface area from 0.351616 to10.7256 m²/g in 5h. No structural change was observed. The comparative study of the photo catalytic activity for the decolorization of Rhodamine B (RhB) in

We fabricated the CH3NH3PbI3-XClX perovskite crystalline films by solution processed method in air and nitrogen ambience to investigate the impact of the growth conditions on surface morphology and interface properties of the films. The surface morphology of CH3NH3PbI3-XClX thin films are captured by scanning electron microscopy (SEM) and fractal analysis is performed on SEM micrographs. The value

The evolution of superconducting properties of BSCCO superconductors, inadvertently hosting the two superconducting phases Bi-2212 and Bi-2223 have been investigated in pristine and Pb doped BSCCO. The superconducting transition temperature TC of Bi-2212 phase monotonically increases with increasing Bi-2223 phase fraction. On the other hand Bi-2223 phase exhibits depression in TC for its lower phase

Attempts have been made to measure the activity in irradiated natural Ni material induced by α-particles in the energy range 10-40 MeV followed by stack foil activation technique. Activity induced has been determined through the cross-sections obtained from various reactions for 58Ni(α, p)61Cu, 58Ni(α, pn)60Cu, 60Ni(α, p2n)61Cu, 60Ni(α, n)63Zn, 60Ni(α, 2n)62Zn,61Ni (α, 3n)62Zn and 61Ni(α, 2n)63Zn in

This study explores the investigation of enhanced mechanical and thermal properties of Mg/B4C/Cr hybrid composites having varying 3, 5, 7 wt. % of B4C and Cr reinforcements in Mg-matrix. The bottom pouring vacuum-based squeezed stir casting process is used to fabricate these composites. The Mg/B4C/Cr hybrid composites evaluate ultimate strength, elongation percentage, expansion coefficient, heat conductivity

The incrementing demand for green and biodegradable material due to increased awareness and government regulations. This gives a new path to the creation of hybrid composite. This may improve the properties. In the present research work, natural fibres were extracted from Agave Americana plant, starch, and nano-talc reinforced in polypropylene matrix was used to synthesis hybrid composite by twin screw

The Hamiltonian of an electron confined in a parabolic quantum dot in the presence of perpendicular magnetic field, donor impurity, and tilted electric field, has been solved by employing an exact diagonalization method. All the energy matrix elements have been derived in analytical forms. We have displayed the variation of the computed energy levels, binding energy and heat capacity of the quantum

This paper presents the response of low-latitude and mid-latitude ionosphere to a severe geomagnetic storm that occurred on 17 March 2015 at 0445 UT, and the subsequent effect of this storm on GPS error in the East-West (E-W) and North-South (N-S) directions. The Vertical Total Electron Content (VTEC) data has been analysed from three dual frequency GPS receivers, which were installed under the framework

A normal way of slow evaporation method had been used to preparing pure ninhydrin (PN) and magnesium doped ninhydrin (M1N) single crystals. The research describes the various characterizations of the developed PN and M1N crystals. Monoclinic crystal structure with non centrosymmetric P21 space group were marked in the developed crystals. Additionally, to find out the various functional groups of the

This paper is about a method developed to normalize the Time of Flight Secondary Ion Mass Spectrometry (TOF-SIMS) data counts of each constituent ion in a mass spectra, by dividing each ion count with the total ion count. So by comparing their statistical means, data of different samples of any alloy like brass etc. from different places around the world can be inter-compared using TOF-SIMS data collected

The excitation functions of 70Ge(p,n)70As,72Ge(p,n)72As, 74Ge(p,n)74As and 76Ge(p,n)76As reactions were studied from reaction threshold to 30 MeV by using EMPIRE-3.2 and TALYS-1.9 nuclear reaction model codes. This study is important because some isotopes produced are important for positron emission tomography (PET). Direct, pre-compound and compound nuclear reactions are considered as main nuclear

PN junction is the basic building block for the fabrication of optoelectronic devices. ZnO shows the n-type behaviour. P-type doping with suitable hole concentration and reduced defects is one of the major challenges in the fabrication of ZnO based devices. Nitrogen, Phosphorus, Arsenic and Bismuth are some of the potential p-type dopants, but none of them have desired electrical properties to fabricate

Imperative introduction of biosensor in the field of medicine, defence, food safety, security and environmental contamination detection acquired paramount attraction. Thus the foundation of the fame of biosensors in detecting wide scope of biomolecules in innumerable fields has driven researchers in advancement of biosensor and enhancing more updates in devices. Among all semiconductor-FET based biosensors

Each country has its own system of Quality Infrastructure (QI) developed for the effective operations, management, regulations, control of national trade, international exchanges of goods & collaborations and recognition of their products and services to enable them to enter into the global market. These QI systems consist of national governments, civic, public and private institutions, organizations

Magnesium-Aluminium (Mg-Al) alloys containing zinc or manganese are preferred choice in automobile and aerospace sectors. Aluminium, the major strengthening element in Mg-alloys is always added below its solid solubility limit of 12.5 wt.%. In the current study, Mg-Al binary systems with Al-content just below and above the solubility limit (Al = 10, 15 and 20 wt.%,) were developed and examined for

Thin film deposition using plasma sputter is done by experimental methods, though Numerical simulation and theory are capable of generating realistic and useful results. In present exploration a theoretical model for sputtering with consequence of different plasma parameters with the help of electromagnetic lenses for planar (Tp) and cylindrical (Tc) magnetron sputteringhas been conversed. The plasma

In the high pressure applications, safety and handling of the design parts are crucial and essentially required. If the design parameters are not properly optimized, sometimes it leads to fatal accidents or huge money loss. With the advent of modern computational tools, the simulation based design analysis is now a day’s address above issues amicably to ultimately helping to improve development process

The investigation of the mechanical behaviour of Bamboo fibre (Bambusa Vulgaris) reinforced unsaturated polyester resin has been carried out in this work. The composites have been fabricated manually using the hand lay-up method. The purpose of the work is to develop a suitable alternative as a replacement for synthetic materials in industries. Five different weight fraction of fibre/matrix have been

In this paper, a methodology based on nullors and passive elements to create equivalent circuits for existing building blocks has been presented. This methodology has been used for generating the equivalent nullor circuit for Current Differencing Buffered Amplifier (CDBA) and its implementation through AD844 ICs of Current Feedback Operational Amplifier (CFOA) has been presented. The proposed circuit

Lightweight materials in general and alumunium alloys in particular are increasingly becoming important engineering materials in order to improve the sustainability aspects of engineering products. Amongst the alumunium alloys, AA7075, due to its strength to weight ratio along with other technical benefits has become a prominent material. The literature suggests that AA7075 is structurally good, however

With the advancement of engineering solutions in the medical domain, the patient’s life can become comfortable. This work recognizes the silent speech of three words. The decoding of silent speech can be useful for patients who are in a locked-in syndrome state. Moreover, it is also applicable to entertainment, cognitive biometrics, and brain-computer interfacing. Brain waves of these imagined words

In this manuscript, comprehensive analysis of distinct optical codes belonging to family of algebraically constructed codes has been demonstrated. Many optical codes belonging to algebraically constructed family such as Extended Reed-solomon codes (E-RS), Multi-level prime codes (MPC), Extended-multi level prime codes (E-MPC), and Variable-weight quadratic congruence codes (VWQCC), Bipolar/Unipolar

In modern industries, basalt and glass are the most commonly used fibers for the fabrication of various engineering components. Present work is focused on the fabrication of hybrid fiber reinforced plastic (FRP) composites, comprises of basalt and glass fibers. The aim of the work is to fabricate a composite justifying the current requirement of the era followed by the identification of the capabilities

Force transducers have prominently been utilized in numerous scientific, industrial and metrological applications since decades. They have been developed for the measurement of force in lower as well as the higher capacity to fulfil the industrial and technological requirements. Generally, a force transducer is calibrated as per standard process. For the better perceptive, there is a need of well defined

In this paper author present performance analysis between solar models based on accuracy, temperature, solar irradiance, resistances, output voltage and ideality factor of solar cell. In past literature various model of solar cell are presented, like one diode model and double diode model. This paper describes a comparative analysis between one-diode, two-diode and three-diode models of PV cell. To

Machinability is expressed as the ease with which a material can undergo machining operations with gratifying surface finish and persistent material removal rate. In general, alumiAnium composites are observed to be difficult to machine due to infusion of hard reinforcement particles into metal matrix. In present study, machinability attributes of Al7075-T6/ Eggshell/SiC/Al2O3composites (Al7075-T6

A mathematical model has been formulated to analyze the behaviour of small amplitude linear and nonlinear shallowwater waves in the coastal region. The coupled Boussinesq equations (BEs) are obtained from the Euler's equation in terms of velocities variable as the velocity measured from arbitrary distance from mean water level. BEs improves the dispersion characteristics and is applicable to variable

Gearboxes are an important part of the mechanical drives element that provides the several applications like automotive industry, wind turbine industry and power plant industry, etc. The condition monitoring of the gearbox reduces its operational cost, maintenance cost and avoid hazardous losses. The features selected for the health status of the gearbox has important parameter to calculate classification

Fused deposition modeling (FDM) is a 3D printing technique that prints thermoplastic layer by layer. Various parameters affect the properties of the final printed object. The exact identification of variation in the properties of the printed object is still a very popular issue among the researchers. In the present work, an effort has been made to identify the parametric influence of layer thickness

In this paper a digital controller has been developed based on Field Programmable Gate Arrays (FPGA) to improve the quality of output (o/p) waveforms produced from a direct matrix converter (DMC), for o/p frequencies higher than the input frequency. In order to reduce the harmonics (present in the o/p voltage waveforms), the performance of proposed DMC is analysed by applying an advanced modulation

This paper presents the rectangular aperture coupled dielectric resonator antenna with dual-band circularly polarized response. The antenna geometry have stair case shaped rectangular dielectric resonator in the form of main radiating element. The specific geometry provides increment of aspect ratio of the dielectric resonator. This allows merging of various resonant frequencies having higher order

Soft Robotics is an emerging field due to high degree of freedom, their soft and delicate interaction, almost no vibration during operations etc. are some among many reasons, why scientists and researchers got attracted towards this field. Nitinol is commonly used in soft robotics and easily available Shape Memory Alloy (SMA) actuator. In present investigation, the authors attempted to understand the

Water is one of the most essential and devastating element in the world. The lack of access to water and its abundance can be a serious threat to human life. These two circumstances may create a difficult situation against the sustainability of human life. Inadequate access to water causes drought, affects agriculture and on other side high level water availability in urban areas affects daily life

The proposed work focuses on the use of a hybrid water pumping system powered through the grid as well as photovoltaic cells, which is capable of operating on single-source availability of either solar or grid. This work reduces multiple stage power conversion by using a novel Modified Universal Converter to replace the diode rectifier, inverter for the hybrid water pumping system. The efficacy of

In the present work, we have successfully synthesized Bi2S3, CuS, and its heterojunction Bi2S3/CuS thin film on fluorine doped tin oxide (FTO) coated glass as counter electrodes. These depositions are done by simple, cost effective, and simply executable sequential chemical bath deposition (S-CBD) method. Well optimized preparative parameters led to the formation of good quality thin films of Bi2S3

Crystal of p-hydroazobenezene was grown and the crystal system is confirmed by analysis the XRD data. The material delineated in monclinic system with the space group of Pbca. FTIR and Raman spectrum analysis have been performed to comprehend the molecular interactions and to learn the vibrational nature of the functional groups in the title compound. Optical, and thermal stability analysis were also

We discuss our present understanding of the incomplete fusion (ICF) reaction dynamics, the excitation function of six evaporation residues (ERs) have been measured in 16O + 156Gd reaction at projectile energy range, E/A ~ 4.3-6.3 MeV/Nucleon. Some of the ERs are produced directly & indirectly (i.e. through pre-cursor), the pre-cursor contributions have been separated out from the measured cumulative

Polymer nanocomposite (PNC) films comprised poly(vinyl alcohol) (PVA) and also its blend with poly(vinyl pyrrolidone) (PVP) (i.e., PVA/PVP = 75/25 wt/wt%) as host matrices loaded with different amounts of montmorillonite (MMT) nanoclay up to 10 wt% were prepared by melt compounded method. X-ray diffraction (XRD) patterns of these PNC films were recorded in the appropriate angular range of 2θ values

The accuracy of an electron microscope depends on the magnification and resolution of the microscope. Hence in order to achieve high accuracy measurement results from the electron microscopic examination, a standard specimen is required to calibrate the transmission electron microscope (TEM). In the present work, gold nanoparticles of uniform size with narrow particle size distribution were synthesized