A significant advantage of the screw fastener is its capability of being mantled and dismantled using simple tools. However, threaded fasteners have inherent and inevitable limitations that they loosen eventually under vibrating environment leading to higher frequency of routine maintenance of the components, the absence of which may result in fatal accidents. In the present work, an attempt has been made to test the anti-loosening ability of various locking screw fasteners, such as nylock nu...

A new aluminum-selective liquid membrane electrode based on a neutral carrier 2-(4,5-dihydro-1,3-imidazol-2-yl)phenol(L) in a poly(vinyl chloride) (PVC) matrix is described. The sensor exhibits a Nernstian response for Al(III) over a wide concentration range (1×10-6 M - 1×10-1 M) and detection limit of (7×10-7 M). The best performance was obtained with a membrane composition of PVC (33%), ortho-nitrophenyloctyl ether (o-NPOE)(64%), ionophore (L) (2%) and sodium teraphenyl borate (NaTPB)(1%). ...

In this paper we propose suitable modifications in the concept of Roche equipotential to account for the effects of Coriolis force on its equipotential surface besides the usual effects of gravitational and centrifugal forces and use this in conjunction with Kippenhahn and Thomas, 1970 approach in a manner earlier used by Mohan et al, 1990 to incorporate the effects of Coriolis force in the equations of stellar structures. The proposed method has been used to compute the equilibrium structure...

Fault-tolerance in an interconnection network is very important for its continuous operation over a relatively long period of time. Fault-tolerance is the ability of the system to continue operating in the presence of faults. In this paper a new irregular network IABN has been proposed and an efficient routing procedure has been defined to study the fault tolerance of the network. The behavior of this network has been analysed and compared with regular network ABN, under fault free conditions...

Immobilization techniques provide a special microenvironment in which cells always have different behaviors compared with free cells. In the present work, the effect of Bacillus pumilis MTCC 2296 cells immobilized in various matrices; such as calcium alginate, polyacrylamide and agar-agar, for the production of alkaline protease, is studied. Calcium alginate was found to be an effective and suitable matrix for higher alkaline protease productivity (491 U/ml) compared to the other matrices stu...

The potential of the environment to yield organisms that can produce functional bionanominerals is demonstrated by selenium-tolerant, aerobic bacteria isolated from a seleniferous rhizosphere soil. An isolate, NS3, was identified as a Bacillus species (EU573774.1) based on morphological and 16S rRNA characterization. This strain reduced Se(IV) under aerobic conditions to produce amorphous α Se(0) nanospheres. A room-temperature washing treatment was then employed to remove the biomass and res...

We present an accurate contour plotting algorithm using 6-node triangular elements. The algorithm traces contours as accurately as the analysis results obtained in FEA. The quadratic nature of the interpolation is analyzed in details and fast algorithms are developed to accurately interpolate the function representing the various conic sections in 2D. Data structures and algorithm for joining the contour segments derived on individual elements are presented. Numerical results are presented an...

Network security is a fairly vast field and is of utmost importance to preserve the information. Existing security solutions like firewalls and IDS implement and support only limited number of packet control mechanisms at the core API available to them. Thus options for specifying rules are rigid. Also, security companies make the kernel buggy as they customize it to make their own firewall for their product. In this paper, a new user space API has been proposed which will provide a consisten...

Optical burst switching (OBS) is an emerging technology that allows variable size data bursts to be transported directly over DWDM links. In order to make OBS a viable solution, the wavelength scheduling algorithms need to be able to utilize the available wavelengths efficiently, while being able to operate fast enough to keep up with the burst incoming rate. When implemented in hardware, the running time of the well-known horizon scheduler is O(1) for practical numbers of wavelengths. Unfort...