Consumers perception towards MTR food products in palace city of Karnataka

This paper examines the history of MTR and its products. The paper analyses uniqueness or products, consumer behavior towards products. Focuses on consumer opinion towards pricing of products. The paper evaluates the distribution effectiveness of products. And also this paper offers suggestions for future development

Cave spiders choose optimal environmental factors with respect to the generated entropy when laying their cocoon

The choice of a suitable area to spiders where to lay eggs is promoted in terms of Darwinian fitness. Despite its importance, the underlying factors behind this key decision are generally poorly understood. Here, we designed a multidisciplinary study based both on in-field data and laboratory experiments focusing on the European cave spider Meta menardi (Araneae, Tetragnathidae) and aiming at understanding the selective forces driving the female in the choice of the depositional area. Our in-field data analysis demonstrated a major role of air velocity and distance from the cave entrance within a particular cave in driving the female choice. This has been interpreted using a model based on the Entropy Generation Minimization - EGM - method, without invoking best fit parameters and thanks to independent lab experiments, thus demonstrating that the female chooses the depositional area according to minimal level of thermo-fluid-dynamic irreversibility. This methodology may pave the way to a novel approach in understanding evolutionary strategies for other living organisms

Synthesis and characterisation of microcrystalline cellulose powder

38-40The influence of the reaction parameters like concentration of hydrolyzing agent (hydrochloric acid), duration of hydrolysis, and temperature of reaction on the bulk density and particle size of the microcrystalline cellulose powder (MCCP) has been investigated. Linear variation of bulk density of MCCP with respect to hydrochloric acid concentration, duration of hydrolysis and temperature have been observed. The highest bulk density of 0.3918 has been obtained for 4 N HCl, 2 h reaction and 60 ± 2°C temperature. The bulk density values lie in the range of 0.1265-0.3918 g<span style="font-size:12.0pt; font-family:" times="" new="" roman","serif";mso-fareast-font-family:"times="" roman";="" mso-fareast-theme-font:minor-fareast;color:#242424;mso-ansi-language:en-us;="" mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">/cm3.</span

Physicomechanical, optical, barrier, and WAXS studies of filled linear low-density polyethylene films

Abstract Linear low-density polyethylene (LLDPE) with different fillers such as silica, mica, and soy protein isolate were compounded using a single screw extruder and blown into films by a Konark blow-film machine. The filled LLDPE films were characterized for physicomechanical and optical properties. Barrier properties such as water vapor transmission rate and oxygen transmission rate of the filled LLDPE films were also reported. Microcrystalline parameters such as crystal size (〈N〉) and lattice distortion (g in %) of the filled LLDPE films were estimated from the wide-angle X-ray scattering method using Hosemann's paracrystalline model. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 2938–2944, 200

Polyaniline-multiwalled carbon nanotube composites: Characterization by WAXS and TGA

Abstract Polyaniline/carboxylated multi-walled carbon nanotube (PAni/c-MWNT) nanocomposites have been synthesized by micellar aided emulsion polymerization with various c-MWNTs compositions, viz., 0.5, 1, 5, and 10 wt %. The microcrystalline parameters such as the nanocrystal size (〈N〉), lattice strain (g), interplanar distance (dhkl), width of the crystallite size distribution, surface weighted crystal size (Ds), and volume of the ordered regions were calculated from the X-ray data by using two mathematical models, namely the Exponential distribution and Reinhold distribution methods. The effects of heat ageing on the microcrystalline parameters of the PAni/c-MWNT nanocomposites were also studied and the results are correlated. The thermal stability and electrical resistivity of the PAni/c-MWNT nanocomposites were examined with thermogravimetric analysis (TGA) and a conventional two-probe method. The TGA data indicate that the thermal stability of the nanocomposites improved after the incorporation of c-MWNTs. The influence of temperature on the resistivity of the nanocomposites was also measured. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci 200

Investigation of multi-walled carbon nanotube-reinforced high-density polyethylene/carbon black nanocomposites using electrical, DSC and positron lifetime spectroscopy techniques

BACKGROUND: The positive temperature coefficient (PTC) effect on material properties has attracted much attention in recent years due to the prospects of many applications like temperature sensors, thermistors, self-regulating heaters, etc. It has been suggested that incorporation of multi-walled carbon nanotubes (MWNTs) into carbon black (CB)-filled polymers could improve the electrical properties of composites due to high conductivity and network structure and significantly reduce the required CB loading. RESULTS: We observed no change in melting temperature and crystalline transition temperature on addition of MWNTs. However, the heat of fusion decreases as the amount of conducting carboxylated MWNT (c-MWNT) filler increases and the resistivity of the composite decreases. The free volume shows an increase up to 1.5 wt% of c-MWNT content and then decreases. CONCLUSION: Well-developed crystals could not be formed due to restricted chain mobility as filler content increases. This results in minimum intermolecular interactions, and thus a decreased heat of fusion. A composite with c-MWNT content of 0.5 wt% showed the highest PTC and higher resistivity at 150 degrees C possibly due to the formation of flocculated structures at elevated temperature. For filler content greater than 1.5 wt%, the decrease in free volume may be due to restricted chain mobility. (C) 2009 Society of Chemical Industr