Perturbation analysis of finlines containing anisotropic media

The simple perturbation method is applied to obtain the propagation characteristics of finlines loaded with anisotropic material. Starting from the analysis of a finline on isotropic dielectric substrate, the authors obtain the propagation constant of finlines having dielectric anisotropy in the substrate and finlines containing magnetised ferrite. The main feature of the perturbation method is its simplicity. Since the anisotropies encountered is practice are small deviations about some mean isotropic value, the results obtained show good agreement with those obtained using the rigorous methods reported in their literature.<>     

Effect of mechanical removal of the pulp upon the retention of odontoblasts around the pulp chamber of human third molars

The pulp chambers of 11 freshly extracted human third molars were exposed by cutting off the roots apical to the cervical margin and the pulps were either removed with forceps and discarded or left in situ. The teeth were fixed, demineralized, divided longitudinally, embedded in resin and 2-micron sections stained with toluidine blue were examined by light microscopy. In pulp-removed specimens the percentage retention of the odontoblast layer with the predentine varied near the longitudinal division but when sectioned deeper all six specimens displayed 100% retention. The intactness of the retained odontoblast layer was mostly good as judged by the mutual close apposition of the distal ends of the cell bodies and their relation to the predentine. The retention of the odontoblast layer with the predentine may be due to the distribution of fibronectin, which others have shown is present between odontoblasts, and between odontoblasts and predentine, but lacking beneath the odontoblast layer.     

On a deadlock and performance analysis of ALBR and DAR algorithm on X-Torus topology by optimal utilization of Cross Links and minimal lookups

Interconnection networks play a major role in differentiating modern multiprocessor architectures. They can be categorized according to a number of criteria such as topology, routing strategy and switching technique. They are built up of switching elements; the topology is packaged such that it is cost effective along with its ability to achieve good performance. In this paper, we have studied an existing X-Torus topology (Gu et al. in ICCSA, LNCS, vol. 3984, pp. 149–157, 2006) which is an enhancement of a Torus network by adding Cross Links, and hence contributes to shorter diameter, shorter average distance and larger bisection bandwidth. Furthermore, we proposed the Adaptive Load Balanced Routing (ALBR) algorithm and Dual Adaptive Routing (DAR) algorithm.     

Development of a Groundwater Resource Model for the Yorkshire Chalk

This paper (a) aims to demonstrate the basic principles of groundwater resource model development by means of an example, and (b) describes the development of the Yorkshire Chalk groundwater model (YORKMOD), undertaken on behalf of the National Rivers Authority † and Yorkshire Water Services. The model incorporates a permeability-depth function to represent fissuring in the Chalk, and has been successfully calibrated against observed groundwater heads and springflows for the period 1975–1992 inclusive.     

Chromatographic analysis of sorbitan fatty acid esters

A procedure is described for the separation, identification and quantitative estimation of mono-, di- and tri-fatty acid esters of sorbitol and of its anhydrides. Stearic, palmitic and oleic acid esters of sorbitol, 1,4-sorbitan and isosorbide were synthesized in the laboratory. Lipid classes were separated by liquid partition column chromatography and TLC. The individual mono-and di-fatty acid esters and the polyols were analyzed by GLC as trimethylsilyl ethers. Recoveries of known compounds in mixtures were in a range of 92% to 100%. Presented at the AOCS-AACC Joint Meeting, Washington, D.C., April 1968.     

Thermotropic liquid‐crystalline polymers: Synthesis,characterization, and properties of poly(azomethine esters)

A series of poly(azomethine ester) copolymers were synthesized by the solution polycondensation method with different diamines. The synthesized polymers were characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry (DSC), hot‐stage polarized microscopy, wide‐angle X‐ray diffraction, and solution viscosity. All polymers showed good thermal stability. The thermotropic liquid‐crystalline properties were examined by DSC and by microscopic observations. Except for one, all of the polymers showed nematic liquid‐crystalline behavior. The effects of temperature on crystallinity and the substituent on solubility, thermal stability, melting temperature, and viscosity were also studied. The voluminosity and shape factor were also computed from the viscosity data. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 88: 153–160, 2003     

Trainable Framework for Information Extraction,Structuring and Summarization of Unstructured Data,Using Modified NER

Wireless Personal Communications - The World Wide Web is an ever expanding source of data in today’s world. Millions of tera-bytes of data and information is getting added every second. In...     

LIMAP: A Lightweight Multilayer Authentication Protocol for WBAN

Wireless Personal Communications - Wireless Body Area Networks (WBANs) are emerging technologies used in the medicinal market for various applications. They connect sensors throughout the human...     

Interaction Between Ionic Liquids and Gemini Surfactant: A Detailed Investigation into the Role of Ionic Liquids in Modifying Properties of Aqueous Gemini Surfactant

Tuning physicochemical properties of aqueous surfactant solutions comprised of normal or reverse micelles by external additives is of utmost importance due to the enormous application potential of surfactant‐based systems. Unusual and interesting properties of environmentally benign ionic liquids (IL) make them suitable candidates for this purpose. To understand and establish the role of IL in modifying properties of aqueous gemini surfactants, we studied the effect of the IL, 1‐hexyl‐3‐methylimidazolium bromide ([Hmim][Br]) and 1‐octyl‐3‐methylimidazolium bromide ([Omim][Br]) on the properties of the aqueous cationic gemini surfactant 1,6‐hexanediyl‐α,ω‐bis(dimethyltetradecyl)ammonium bromide (14‐6‐14,2Br^?). The behavioral changes were investigated by measuring the critical micelle concentration (CMC) using electrical conductance, surface tension, dye solubilization and fluorescence probe measurements at 298.15 K. It was observed that the CMC of 14‐6‐14,2Br^? gemini surfactant decreases with addition of IL, thus favoring the micellization process. An increase in micellar size was observed at lower IL concentration using dynamic light scattering, with a decrease in aggregation number (N_agg) determined from fluorescence probe quenching measurements. It is noteworthy that the extent of modulation of the micellar properties is different for both the IL due to their structural differences. IL behave like electrolytes at lower concentrations and cosurfactants at higher concentrations and form mixed micelles with the cationic gemini surfactant showing an increase in N_agg.     

Distributional impacts of the North Dakota gas flaring policy

This paper considers whether the reform of North Dakota’s natural gas flaring policy provided large operators a competitive advantage, leading to increased market concentration. North Dakota was the highest gas flaring and venting state in USA until it was taken over by Texas in 2015 coinciding with the implementation of its gas flaring policy in 2014. Two analyses are performed in North Dakota (and Wyoming, as a control) to compare the effect that the flaring policy had on the state’s oil sector. The analyses show mixed evidence, larger firms gained an advantage leading to fewer smaller firms operating in the state. The paper concludes with highlighting possible further areas for research, and methodologies for acquiring more reliable data.