Protection of Head From Tbi Using Helmet By Improving MaterialProperty With Bamboo

Helmet can protect the passengers from the road accidents. There are more than 1 lakh peoples die in the accidents because without wearing the helmet. During the accident the head region facing the major effects. During accident situations the head facing three challenges like front, rear and side strike by Newtons third law of motion others are happening. In order to reduce the passengers the government forcing them to wear helmets. The head injury is also depends upon the helmet design structure and the materials what we selected. Previously they were using several materials in helmet design. Now we design a 3D model helmet in CATIA V5 R20 and meshing the model in HYPERWORKS 14.0 and analyzing the model in ANSYS WORKBENCH R16 using bamboo as shell material with 1mm thickness and polystyrene as foam material with 20mm thickness

Review of natural fibre-reinforced hybrid composites

Natural fibre-reinforced hybrid composites which contain one or more types of natural reinforcement are gaining increasing research interest. This paper presents a review of natural fibre-reinforced hybrid composites. Both thermoplastic and thermoset composites reinforced by hybrid/synthetic fibres or hybrid/hybrid fibres are reviewed. The properties of natural fibres, the properties and processing of composites are summarised

Computer vision based smart overspeeding vehicle surveillance system

In India, overspeeding causes more than 60% of deaths. Therefore, we need a system that tracks the median speed of cars and identifies those who regularly violate the law. Road fatalities can be reduced as a result of maintaining law and order. In this paper, we present an embedded system that can read the license plates of passing cars in real time. Using optical character recognition technology, the proposed system will capture images of license plates. In addition, it sends short message service (SMS) notifications regarding the highway speed of a specific moving vehicle violating the rules to the relevant authorities. By using this technique, several manual operations that were previously required to detect over-speeding automobiles with RADAR guns are eliminated. On the roadway, the device can only be operated by one operator due to its well-developed user interface. As part of this work, a downloadable database is developed which includes information about speeding vehicles as well as vehicles travelling on a roadway at the moment they are detected

Experimental study and analysis of single slope solar still integrated with Phase Change Material

Abstract Solar thermal systems are playing important role to encounter environmental issues like global warming, in the last two decades they replace conventional systems to create an eco-friendly environment. Lot of research have been undergone on solar thermal systems to improve their performance and efficiency, but still the area is wide open for improvement because of demand on renewable sources increase. As their is need for increasing the performance of solar thermal systems, phase change materials could serve as energy storing device during abundant available of energy. For solar thermal systems the major challenge is energy availability will not be round the clock, in order to clear this hurdle phase change materials backing served as a better support. The biggest challenge of developing countries today is to provide clean drinking water, as there are many conventional systems to convert saline water into drinking water their main disadvantage is pollution of environment due to harmful emissions. Hence, solar thermal systems with phase change materials are considered as best option in production of clean drinking water due to their operation by renewable energy, compactness and zero emissions. Phase change materials are coupled with solar system experimentally, and their behaviour and performance were characterized with results and observation, here the phase change material paraffin wax is embedded in copper tubes coupled with solar system is employed in production of clean drinking water; their performance and efficiency are compared with single slope solar still without phase change material. The thermal stability, corrosive resistance and impressive properties of paraffin wax and thermal conductivity of copper were tied together to single slope solar still for improving performance and efficiency of clean drinking water production. It is observed solar still without phase change material could generate drinking water from saline water only during day time, but the solar still coupled with phase change material embedded in copper tubes showed better results with 11 percent increase in production of drinking water even during dark hours.</jats:p

Abstract P5-03-09: Ovarian Hormones Promote Mammary Carcinogenesis by Altering Growth Factor Receptor Signaling

Abstract Study of carcinogenesis in rat models plays an important role in understanding the nature of neoplastic transformation. Identification of biological, cellular and molecular alterations involved in the carcinogen induced preneoplastic transformation has vital importance in mammary cancer development. Copenhagen rats are resistant to the carcinogen, N-methyl-N-nitrosourea (MNU) induced mammary carcinogenesis. Our previous studies indicate that MNU induced preneoplastic lesions were promoted to mammary cancer by the hormones estrogen and progesterone. The purpose of this study is to delineate the molecular mechanisms of hormonal promotion of mammary carcinogenesis. Seven week old female Copenhagen rats were administered a single dose of 50 mg/kg body weight MNU intraperitoneally. Four weeks post carcinogen administration, rats were divided into 4 groups, 1) Control, 2) rats treated with 30 mg estradiol, 3) rats treated with 30 mg progesterone, 4) rats treated with 30 mg estradiol plus 30 mg of progesterone. Two weeks after the implantation rats were killed and mammary glands were excised and used for further experiments. Quantitative RT-PCR experiments showed up-regulation of growth factor receptors such as Igf-1r, Egfr and growth factor signaling members Grb2, Pi3k and Ras mRNA expression. Immuno histochemical studies showed strong staining to growth factor receptors and western blotting studies showed increased protein levels of growth factor receptors such as IGF-1R and EGFR and active form of proliferative signaling molecules Akt and SAPK/JNK were up-regulated in combination of estradiol and progesterone treated rats. Phosphorylated p38 was reduced in the combination of hormones treated rat preneoplastic lesions when compared to control. Combination of ovarian hormones treatment provided enhanced growth factor signaling environment and promoted the mammary lesions through activation of SAPK/JNK and growth factor signaling pathways. Citation Information: Cancer Res 2010;70(24 Suppl):Abstract nr P5-03-09.</jats:p