61 research outputs found
Network Self-Fault Management Based on Multi-Intelligent Agents and Windows Management Instrumentation (WMI)
No full textThis paper proposed a new method for network self-fault management (NSFM) based on two technologies: intelligent agent to automate fault management tasks, and Windows Management Instrumentations (WMI) to identify the fault faster when resources are independent (different type of devices). The proposed network self-fault management reduced the load of network traffic by reducing the request and response between the server and client, which achieves less downtime for each node in state of fault occurring in the client. The performance of the proposed system is measured by three measures: efficiency, availability, and reliability. A high efficiency average is obtained depending on the faults occurred in the system which reaches to 92.19%, availability 92.375%, and reliability 100%. The proposed system managed five devices. The NSFM implemented using Java and C# languages
Nanoparticle-Based Advanced Bioimaging Probe with Controlled Number of Conjugated Biomolecule
No full textThe work in this thesis entitled “Nanoparticle-Based Advanced Bioimaging Probe with Controlled Number of Conjugated Biomolecule” was initiated by the author in July 2014 in Centre for advanced Materials and School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata under the supervision of Prof. Nikhil Ranjan Jana.
Ome of the most important advances in nanomaterial chemistry is the designing of advanced beeimaging probe which can be used as an alternative to molecular probe. Fluorescent nanoparticle offers promises in this area due to their strong photoluminescence and low ghotobleaching property in comparison to the existing organic dyes. Unique properties of nanoparticles like carbon dots, quantum dots, semiconductor nanoparticles, silicon nanoparticles, gold cluster and these nanoparticles are used as superior imaging probes for various bio- Geenostics. For this purpose synthesis and functionalization of nanoparticle is very important. Nanoparticle with tunable surface functionality can target desired subcellular organelle. Sebcellular localization of the nanoparticles is sometimes restricted due to their endosomal shapping which is disadvantage for the gene delivery, drug delivery or bioimaging. It is also own that endocytosis mechanism also plays important role in subcellular localization of the particles. Clathrin-mediated endocytosis leads the particle to the endosomes or lysosomes of the sells whereas caveolae or lipid raft mediated endocytosis bypass the endosomal pathway and tke the particle towards nucleus, Golgi apparatus or endoplasmic reticulum. Interestingly, emdeeytosis mechanism always depends on the size, shape, surface functionalization, ligand density of nanoparticle by which it interacts with the cell membranes.The research was carried out under the supervision of Prof. N R Jana under SMS [School of Materials Science]The research was conducted under CSIR fellowshi
Interdisciplinary Engineering Education Research Collaborations: Exploring Ways of Thinking using a Mixed Methods Approach
No full textabstract: There has been a growing emphasis on the education of future generations of engineers who will have to tackle complex, global issues that are sociotechnical in nature. The National Science Foundation invests millions of dollars in interdisciplinary engineering education research (EER) to create an innovative and inclusive culture aimed at radical change in the engineering education system. This exploratory research sought to better understand ways of thinking to address complex educational challenges, specifically, in the context of engineering-social sciences collaborations. The mixed methods inquiry drew on the ways of thinking perspectives from sustainability education to adapt futures, values, systems, and strategic thinking to the context of EER. Using the adapted framework, nine engineer-social scientist dyads were interviewed to empirically understand conceptualizations and applications of futures, values, systems, and strategic thinking. The qualitative results informed an original survey instrument, which was distributed to a sample of 310 researchers nationwide. Valid responses (n = 111) were analyzed to uncover the number and nature of factors underlying the scales of futures, values, systems, and strategic thinking. Findings illustrate the correlated, multidimensional nature of ways of thinking. Results from the qualitative and quantitative phases were also analyzed together to make recommendations for policy, teaching, research, and future collaborations. The current research suggested that ways of thinking, while perceived as a concept in theory, can and should be used in practice. Futures, values, systems, and strategic thinking, when used in conjunction could be an important tool for researchers to frame decisions regarding engineering education problem/solution constellations.Dissertation/ThesisDoctoral Dissertation Learning, Literacies and Technologies 201
Novel studies of the dynamics of mineral N species transformations and their mobilities relevant to assessing risks to drainage water.
No full textABSTRACT
The biogeochemical cycling of nitrogen has been studied in detail at a predominantly acid
grassland nature reserve, Hob Moor, just outside the city of York in the UK. Because of the
risk of more frequent and/or extended summer droughts as a potential consequence of
climate change, particular attention was paid to the influence of drying and rewetting upon
the mobility of mineral N species. It was found that ammonification proceeds after net
nitrification has ceased, and that subsequently nitrate is immobilized when the drying period
is protracted. It is suggested that this is probably due to uptake by drought-tolerant microorganisms.
The experimental work showed that much of the first flush of nitrate after a
period of drying is therefore attributable to stored nitrate, as long as the drying out period is
not excessively long.
The mobility of ammonium-N in soils from Hob Moor was studied to test the
hypothesis that in the heavily N-impacted soils at the site it would be more mobile than most
soil scientists would predict, by measuring adsorption/desorption characteristics. The
absorption isotherms confirmed that ammonium in these soils is potentially mobile, and
when mobilized below the rooting depth may pass to the adjacent stream around the edge of
the site. This helps explain the high ammonium-N and nitrate-N concentrations observed in
this stream.
A developing interest in the Gaia hypothesis prompted the author to make a brief
preliminary investigation of the idea that deciduous trees have evolved naturally to provide a
close match between the dynamics of N release by litter decomposition and the dynamics of
plant N requirement. The experiment showed that initially the fresh litter with a high C/N
ratio immobilized nitrate especially in the forest soil. Under the relatively warm conditions
of the experiment decomposition was rapid, and the immobilization was not sustained as
would be predicted. Further evaluation of this concept is advocated.
The extent of immobilization by litter prompted a study of long-term seasonality of
trends in nitrate concentration throughout the River Derwent in North Yorkshire using data
obtained from the Environment Agency. It was thought that a ban on straw burning in 1993
might have reduced winter annual nitrate concentration peaks and possibly increased summer
minima. The data partly supported this idea, but the timing match was not perfect, and it was
thought that the foot and mouth disease impact and farmers’ responses to environmental
concerns and policy and to increasing fertilizer and energy costs were probably also
important.
Finally a study was made of the importance of storage conditions upon extractable
ammonium and nitrate concentrations in soils. Surprisingly nitrification was not sufficiently
inhibited in some soils stored under refrigerated conditions overnight, and it is concluded
that volumetric sampling and immediate extraction in the field may be a preferred option
Low temperature epitaxial silicon film growth using high vacuum electron-cyclotron-resonance plasma deposition
No full textWe report on the growth technique and electrical properties of epitaxial Si films grown at low temperatures using an electron-cyclotron-resonance plasma deposition technique. We have used standard high vacuum apparatus to grow high quality films at 450-525 °C. A critical step in achieving high quality films is an in situ hydrogen plasma cleaning of the wafer before growth. We have systematically studied the influence of ion bombardment during growth by biasing the substrate, and find that the films are crystalline for substrate bias voltages less negative than about -15 V, but become polycrystalline as the magnitude of the negative bias is increased. The crystallinity of the film was measured using Raman spectroscopy. The undoped films are n type with carrier concentrations in the 1016-1017 cm-3 range. The Hall mobilities measured for the films are comparable to values obtained in bulk Si crystals. We can achieve abrupt profiles in carrier concentrations between the heavy doped substrate and the epilayer, with no evidence of diffusion.This work was supported in part by a fellowship from the Catron foundation for Scott DeBoer, and in part by a grant from NREL
Musculoskeletal injuries in British Army recruits: A prospective study of incidence in different Infantry Regiments
No full text\ua9 Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved.Background Musculoskeletal injuries and attrition incurred during basic military training are a significant socioeconomic burden across many Defence Forces. In order to plan an injury prevention strategy, the purpose of this study was to quantify the regiment-specific musculoskeletal injury patterns and training outcomes. Methods This was a prospective observational study of the Parachute (n=734), Guards (n=1044), Line (n=3472) and Gurkha (n=458) Regiments of the British Army recruits during a 26-week basic military training programme over a 2-year period. The participant demographic characteristics were: age 18.9 years (SD\ub12.3), height 176.5 cm (SD\ub17.80), mass 69 kg (SD\ub19.7) and body mass index 22.14 kg/m2 (SD\ub12.5). results The incidence of injuries (86%, 46%, 48% and 10%) was significantly different (p<0.001) as were the first time pass out rates (p=0.02) of 38%, 51%, 56% and 98% for Parachute, Guards, Line and Gurkha, respectively. Overuse injuries were more frequently reported than both acute and recurrent injuries in all regiments (X2=688.01, p<0.01). conclusions The disparity in injury incidence and training outcome between Infantry Regiments suggests that the demands of training be taken into account when devising injury prevention strategies
Online electronic information resources on business management
No full textThe paper discusses the Post Graduate Management Institutes in South Gujarat and the problems of their libraries. The author has described the freely available Internet resources on Business management like E-journals, business databases, stock exchanges, management virtual libraries etc. and has also started to compile the links of these free internet resources at URL http://www.geocities.com/ghoshtbin to integrate the resources in a uniform location for the benefit of the Management faculties and students
Freely available online information sources and their impact on libraries and information centres
No full textSince past few years free online information sources like e-journals, e-books, e-data- bases have increased cnsiderably. The traditional library systems are going to transform into digital library systems and different projects like Gutenberg e-book project, Virginia Tech. Digital Library Project, University of California Digital Library project etc. have been undertaken. The author has started to compile the links of such freely available online information sources on the Internet at URL: http://www.geocities.com/ ghosh_tbd and described the same in this paper. The paper also describes the impact on collection development, budget and technical processing etc. of the Library and Information centre
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