Quality Comparison of Vegetables Dehydrated in Solar Drier and Electrical Oven

Ascorbic acid, sugars, dehydration ratio and moisture were determined in the vegetables dehydrated separately in solar drier and in electrical oven under similar conditions by standard methods. Vegetables examined were cabbage, cauliflower, tomato, radish, turnip, lahi, methi and palak. It was revealed that in each case, contents of ascorbic acid were higher in solar-dried vegetables in comparison to oven-dried stuffs. This finding indicated superiority of solar driers over electrical ovens, both in reference to quality of the dehydrated vegetables and its overall cost of operation

Sub-femtosecond electron bunches created by direct laser acceleration in a laser wakefield accelerator with ionization injection

In this work, we will show through three-dimensional particle-in-cell simulations that direct laser acceleration in laser a wakefield accelerator can generate sub-femtosecond electron bunches. Two simulations were done with two laser pulse durations, such that the shortest laser pulse occupies only a fraction of the first bubble, whereas the longer pulse fills the entire first bubble. In the latter case, as the trapped electrons moved forward and interacted with the high intensity region of the laser pulse, micro-bunching occurred naturally, producing 0.5 fs electron bunches. This is not observed in the short pulse simulation.Comment: AAC 201

Construction and Validation of Indian Consumer Ethnocentrism Scale: The Ice-Scale

Globalization has unlocked and exposed domestic and overseas marketers to superior market opportunities. Additionally, it presents consumers worldwide with a vast number of local and foreign brand choices. Indian consumers, also now, have a broader choice of merchandise at their disposal as economic liberalization and privatization along with globalization have reduced the barriers to trade. In such a setting, the concept of consumer ethnocentrism can deliver deep insights about the preference of consumers toward domestic merchandise. The study aims to develop the Indian Consumer Ethnocentrism Scale (ICE-Scale) and validate the same. Data are collected using a structured questionnaire from urban and rural regions. The study constructed the Indian Consumer Ethnocentrism Scale (ICE-Scale), explored its dimensionality on a sample of 450 respondents, and validated the scale with another sample of 450 using exploratory factor analysis. It was established that the ICE-Scale encompasses two dimensions, namely, protective ethnocentrism and patriotic ethnocentrism. Additionally, the validity testing for the proposed scale and both the constructs were conducted through confirmatory factor analysis. The study advances the existing pool of information in the field of international economics, consumer psychology and global marketing. It also assists domestic producers to get an improved understanding of consumers’ ethnocentric tendencies which in turn would assist them in choosing superior marketing strategies and boosting their sales. The study will not only deliver certain social and policymaking insights to the domestic firms and government but also to the foreign firms functioning or planning to operate in India

Analysis and simulation of a magnetic bearing suspension system for a laboratory model annular momentum control device

A linear analysis and the results of a nonlinear simulation of a magnetic bearing suspension system which uses permanent magnet flux biasing are presented. The magnetic bearing suspension is part of a 4068 N-m-s (3000 lb-ft-sec) laboratory model annular momentum control device (AMCD). The simulation includes rigid body rim dynamics, linear and nonlinear axial actuators, linear radial actuators, axial and radial rim warp, and power supply and power driver current limits

Combustion at reduced gravitational conditions

The theoretical structures needed for the predictive analyses and interpretations for flame propagation and extinction for clouds of porous particulates are presented. Related combustion theories of significance to reduced gravitational studies of combustible media are presented. Nonadiabatic boundaries are required for both autoignition theory and for extinction theory. Processes that were considered include, pyrolysis and vaporization of particulates, heterogeneous and homogeneous chemical kinetics, molecular transport of heat and mass, radiative coupling of the medium to its environment, and radiative coupling among particles and volume elements of the combustible medium

Formation of a rotating jet during the filament eruption on 10-11 April 2013

We analyze multi-wavelength and multi-viewpoint observations of a helically twisted plasma jet formed during a confined filament eruption on 10-11 April 2013. Given a rather large scale event with its high spatial and temporal resolution observations, it allows us to clearly understand some new physical details about the formation and triggering mechanism of twisting jet. We identify a pre-existing flux rope associated with a sinistral filament, which was observed several days before the event. The confined eruption of the filament within a null point topology, also known as an Eiffel tower (or inverted-Y) magnetic field configuration results in the formation of a twisted jet after the magnetic reconnection near a null point. The sign of helicity in the jet is found to be the same as that of the sign of helicity in the filament. Untwisting motion of the reconnected magnetic field lines gives rise to the accelerating plasma along the jet axis. The event clearly shows the twist injection from the pre-eruptive magnetic field to the jet.Comment: 14 pages, 12 figures, to appear in MNRA