1,642 research outputs found
On the -algebra in the Calegero-Sutherland model using the Exchange operators
We study the algebra in the Calegero-Sutherland model using the
exchange operators. The presence of all the sub-algebras of is shown
in this model. A simplified proof for this algebra, in the symmetric ordered
basics, is given. It is pointed out that the algebra contains in general,
nonlinear terms. Possible connection to the nonlinear is discussed.Comment: Plain Tex, no figures, 13 page
Durability Evaluation in Concrete Using Cracked Permeability and Chloride Permeability Tests
The objective of this study is to identify the possibilities of utilizing the quarry dust in concrete to obtain an improved strength and durability properties of concrete. In the present study, the addition of quarry dust as alternative for natural sand has been investigated, and the durability properties of concrete were evaluated systematically by means of cracked water permeability and rapid chloride permeability tests. The permeability of concrete was assessed with initial stress applied to the concrete specimen and later checked for water permeability. Concrete mixes were casted using ordinary river sand and compared with 100% quarry dust substituted concrete. The addition of quarry dust significantly improved the concrete matrix properties in terms of strength and permeability resistance. The addition of fine quarry dust in concrete resulted in improved matrix densification compared to conventional concrete. Matrix densification has been studied qualitatively through petrographical examination using digital optical microscopy
Hyper Market Industry in Dubai – An Evaluation Using AHP Technique
Among all retail formats hypermarket is growing very fast in UAE that is at the rate of 150 percent.The major players in this sector are Carrefour, Spinney’s, United, Choithram and Lulu.The focus of the problem is selecting a best hypermarket among the existing operators of Dubai andfor which we used seven major criteria for evaluating the hypermarkets such as product availabilityand variety, market coverage, channel density, customer density, nationality served, facilities andservices and customer spending pattern. We used Analytic hierarchy process (AHP), developed byThomas saaty (1980) to provide a simple but theoretically sound multiple criteria methodology forevaluating the alternatives
DIMINUTION OF HEAVY METALS IN INDUSTRIAL SOLID WASTE BY AN AMALGAMATION OF MYCO AND VERMI REMEDIATION
Due to the development of Industrialization and urbanization, a wide variety of industrial and consumer products, by products and solid waste has been produced. The solid waste generated constitutes the hazardous substance which possesses certain impacts on humans and their environment. In that heavy metal pollution from industries are the serious environmental problems. Rapid development in industries in the last few decades resulted in the strenuous task for finding to manage the waste generated. These hazardous solid wastes have been formulated into reusable end product by the process of bioremediation. Bioremediation is a natural process, which involves the use of organism to remove or neutralize the toxic pollutant from the contamination site. This review focus on the toxic effects of heavy metals on the environment and on the human health as well as the possible bioremediation method of these metals using fungus and earthworm. In order to conserve the environment and resources, the biological remediation by both fungus and earthworm for heavy metals and their efficiency have been summarised in detail
Congestion-aware wireless network-on-chip for high-speed communication
The design of system-on-chip (SoC) requires the complex integration between a multi-number of cores on a single chip. To establish the effective communication between multiple cores there aremore challenging issues on designing the network-on-chip (NoC) architectures. The proposed system deals with the utilization of on-chip antennas for the wireless communication between the long distance cores to minimize the latency and power. In this proposed work, we have designed high-speed wireless NoC (WiNoC) for on-chip communication. This high-speed WiNoC has been achieved by designing a congestion measure unit, which monitors and measures the congestion in the input data and establishes the effective wireless communication between the output channels and routers. The designed architecture is synthesized and implemented by using Altera Quartus II, where the SoC is designed using Qsys builder. The proposed WiNoC shows better performance parameters like throughput, latency and power than the conventional NoC
Strength Properties of Processed Fly Ash Concrete
The present paper reports on the mechanical treatment of fly ash for improving the delayed reactivity of fly ash with the hydration product of cement. Grinding of fly ash was carried out in a ball mill for different time durations and processing time was optimized for maximum fineness. Concrete mixes were prepared using various proportions of processed and unprocessed fly ash replacement in cement (25% and 50%). The influence of steel fiber addition on the mechanical properties of the concrete was studied for different curing periods. The test results on pozzolanic activity and lime reactivity indicate that the processed fly ash exhibited a higher strength gain than the unprocessed fly ash, with a maximum increase in compressive strength of up to 12%. Improved pozzolanic properties were noticed due to the increase in fineness of the fly ash particles
Understanding the factors influencing pharmacokinetics of tacrolimus
Tacrolimus, a potent calcineurin inhibitor integral to immunosuppressive regimens, exhibits complex pharmacokinetics influenced by diverse factors and understanding these factors is crucial for safety, efficacy and dose optimisation. Genetic variations, particularly in CYP3A enzyme systems and P- Glycoprotein, contribute significantly to inter-individual variability in tacrolimus metabolism. Polymorphisms in these systems alter drug bioavailability, impacting clinical outcomes. Ethnicity further compounds this variability, with distinct genetic profiles leading to differential drug responses. Notably, black patients, often characterized by CYP3A5 expressor status, may have higher drug clearance. Age-related changes in tacrolimus clearance highlights the discrepancies in elderly and paediatric populations. On the other hand, prediction of gender-specific differences is difficult due to lack of evidence. Body composition, specifically variations in fat and muscle mass, significantly impacts drug distribution and clearance. Obesity, associated with altered CYP3A activity, results in decreased drug clearance, emphasizing the importance of accounting for body composition in dosing calculations. Pregnancy -induced physiological changes affect tacrolimus absorption, distribution, metabolism, and excretion, necessitating careful monitoring and dose adjustments in pregnant individuals. Dietary factors and drug interactions, particularly with CYP3A4 and P-glycoprotein, further contribute to the intricate web of variables influencing tacrolimus pharmacokinetics. In conclusion, this review sheds light on the multifaceted factors influencing tacrolimus pharmacokinetics, providing essential insights for clinicians to tailor individualized dosing regimens and enhance therapeutic efficacy while minimizing the risk of adverse events
Climate vulnerability of sorghum and millet
Sorglium and millet are !lie most imoortnnl cereals lor resourcu.l)nor
larnlersof West Alrica. Tliey are Ille o~ilyst aple crops that can whlistnnll
tlie ravages of weatlier in that area. Tenl~~uraanl d snatral variat~oris1 11
rainfall and tlie persistence and patterns df railifall sl;ortages, especrally
since 1969, have conlribured lo low producl~vitvo ver the last 2 decades.
Increased yields can only be acliieved tlirougli effective rnanaye~risnot f
available resources, both pliysical and biolog~calO. ngoing research iri
West Africa offers hope, but s~gnilicant clianges In present farming
n~etliodsw ill be needed lo reduce tlie cli~iiatic~ [rlnerab~lo~lt yso rghu~ri
arid millet
Integrating Soil and Crop Models for Agroclimatological Analysis
In spite of the rapid advances made In the past 2
decades. world food production will barely manage to
keep up with population and demand from now until the
year 2000. The exceptionally stable climatic period
witnessed by the world over the past 40 years is highly
unlikely to continue (Cusack. 1983). Climatic Instability
will Increase the vulnerability of the already marginal
areas currently under cultivation In the semiarid regions
of Asia and Africa. Integration of information from soils.
crops. and the environment is crucial to evolve carefully
managed systems of cultivation that make the most
emcient use of natural resources
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