Conference Publications

To measure the quality of health care services patient satisfaction is used as one of the most important indicators. The study aims to identify factors affecting patient's satisfaction at primary health care clinics. In evaluations of health care quality, patient satisfaction is a performance indicator measured in a self-report study and a specific type of customer satisfaction metric. This study deals with the customer satisfactions based on primary data such as general medicine, general surgery, gynaecology and orthopedics etc., which are collected from patients in private hospital, Coimbatore, Tamil Nadu, India. It was also found that reputation of hospitals is influencing factor along with extra facilities, available in the hospital. There was significant influence of age and visits of the respondents on patients? loyalty.

Organizations came to the realization that it is not economically feasible to maintain the increasing maintenance costs of maintaining data centers with large floor space. One of the main concerns associated with Cloud Computing is the security of the service is that sensitive and important data is no longer only under the control of the data owner as the service provider also has access to that data. In terms of the methodological approach used by this thesis, this thesis will utilize the use of the qualitative method in answering the research questions posed by this thesis. The systematic literature review has shown that there are novel and innovative ways for organizations to mitigate the inherent risks associated with the use of cloud computing.

Hybrid composites developed by combining natural fibers/natural fiber and natural fibers/synthetic fibers with epoxy, polyester, phenolic, poly vinyl ester, etc., resins are well established. In this present study, hybrid composites were prepared with banana fiber, sisal fiber and with bamboo charcoal by hand layup method according to ASTM standards. The various weight percentages of fibers in the resin and bamboo charcoal were used to gain insights into the effect of fiber content and charcoal filler on the mechanical properties (Impact, Tensile and Flexural). Scanning electron microscopy (SEM) was used to examine the morphology of these materials.

Numerous laboratory studies report carbon monoxide, hydrocarbon, and engines operating with biodiesel and biodiesel blends. This paper presents a field study of multicylinder passenger bus (Ashok Leyland make) operated between Villupuram and Salem, Tamilnadu (170 Km), India using Jatropha methyl ester (JME) with different blend proportions as fuel. The total emissions of air pollutants such as carbon monoxide (CO), nitrogen oxides (NOx), particulate matter (PM) and hydrocarbon (HC) are evaluated during the operation of bus with constant speed (60 Km +5km). Among these different proportion of blends, Jatropha methyl ester (JME20) as an alternative to the conventional fuel in the public transport considerably reduced exhaust emission.

Green Cloud refers to the prospective environmental benefits that information technology services are delivered via Internet with reliable and easy-accessible atmosphere. The datacenters can consume enormous amount of energy and also emits huge amount of carbons due to large number of cooling equipments, servers and storage systems infrastructure. The data center efficiency is one of the significant factors to enable cloud computing as green by lower energy usage and carbon emissions from business firm. The power efficiency of datacenters has most important impact on the total energy usage of Cloud computing. To achieve the reduction in energy consumption of a datacenter is to calculate the consumed energy in cooling equipments and other metrics with the help of Power Usage Effectiveness (PUE) which can be used to standardized how much energy is beneficially deployed versus how much is spent on other metrics such as power distribution, conditioning equipment, cooling infrastructures, storage and networking subsystems. The PUE of a datacenter is defined as the ratio of the total power consumption of data or switching center to the total power consumption of information technology equipments such as servers, storage and routers. By using the energy efficient technologies such as green broker framework, calculation of cost, energy and carbon emissions, the cloud providers can significantly improve the PUE of their datacenters and hence this approach can preserve the eco-friendly environment.

The psychophysiological influence of the virtual reality on a human has already been under discussion for a long time. There is an empirical correlation of immersion with hardware and software parameters of the virtual reality such as a frame rate, tracking a head rotation, audio, and interaction methods applied in the virtual reality. On the other side, a deep level of interaction can be explained by activation of similar cognitive structures in the brain and sensory stimuli as in same situation on practice. In this perspective, psychophysiological test is simple model of human activity and could be provided benefit to measuring of performance man-machine interaction with graphic monitor (desktop application) and head-mounted display (in virtual reality). Its key idea is to measuring of human performance in different environments (desktop and virtual reality) by the test for a reaction rate to a movable object with feedback and without. It was shown that effectiveness of man-machine interaction turns out to be higher when using head-mounted display (in virtual reality) than when using a video display (desktop application) independently on the different orders of performing the testing tasks. The data obtained could be provided benefit to modeling training systems in virtual reality and for improving learning performance. The material presented can open new prospects for further research studies. It seems interesting to those who work in the field of usability engineering, training simulation and human-computer interaction.

The effect of antioxidant additive on engine performance, combustion and emission of a diesel engine fuelled with methyl ester of calophyllum biodiesel is studied. The antioxidant is mixed in various proportions from 50 mg to 200 mg with methyl esters of calophyllum biodiesel. It has been observed that the anti-oxidant mixture at 200 mg proportion is effective in controlling NOx and HC emission without any modification in the engine. Further there is a reduction in other emission such as CO and smoke of about 48% and 28.57 % respectively at full load condition when compared to the diesel fuel.

Shipping covers 90% of goods transport globally. According to current estimates presented in Third IMO GHG Study 2014, international shipping emitted 796 million tones of CO2 in 2012, which is about 2.2% of the total global CO2 emission. One of the methods of reducing CO2 is by applying wind energy devices such as Flettner rotor for ship propulsion. Ships fitted with Flettner rotors are tested and simulated over various ship routes claiming a fuel saving up to 30% for average ship speed. In this paper the progress of Flettner rotor application exclusively for ship propulsion is reviewed and summarized.

Our present study, we have reported the novel use of the aquous leaf extract of Gnetum ula to produce gold nanoparticles by reduction of AuCl4?ions. The phytochemicals present in the leaf extract served as effective reducing and capping agent. The gold nanoparticles obtained were characterized by UV–visible spectra, transmission electron microscopy (TEM) and X-ray diffraction (XRD). TEM studies showed the particles to be of various shapes and sizes. High-resolution TEM image confirmed a fcc phase and high crystallinity of the particles. The XRD patterns showed a (1 1 1) preferential orientation of the gold nanoparticles. Fourier transform infra-red spectroscopy (FTIR) measurements showed the GNPs having a coating of phenolic compounds indicating a possible role of biomolecules responsible for capping and efficient stabilization of the gold nanoparticles. AuNPs of Gnetum ula were having significant anti-arthritic activity.

Cotton fibre is one of the most preferred raw materials in apparel industries due to its natural feel and comfort. Fibre reactive dye is the colourant of choice for dyeing cotton fabrics due to its brilliancy, variety of hue and high wet fastness properties. The major challenge in reactive dyeing of cotton is that require large amount of salt for exhaustion, in addition to that extensive water used for removing unfixed dye. The unfixed dye along with added salt increases effluent load on effluent treatment plants and limits the opportunities for recycling treated effluents and cause environmental pollution. This research paper focuses on the modification of cotton fabrics in such a way that the produced fabrics dyed with reactive dyes without the addition of salt thus reduced the effluent load and make the process more sustainable and greener process.