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85 articles for “Fluctuation”
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Research ArticleOpen accessEvery word in the titleLagrangian Micromixing Models for Concentration Fluctuations: An OverviewPaolo Monti, Giovanni Leuzzi, Andrea AmicarelliThis study presents a brief overview of the main features, theoretical formulations and validation tests of some Lagrangian micromixing models, currently used for estimations of the ensemble mean and the turbulent fluctuations of concentration. Their application fields regards several pollutant dispersion phenomena such as: accidents (power or production plants, terroristic attacks, hydrocarbons storage and transport, extraordinary emissions), odours (power plants … …American Journal of Environmental Sciences, Vol. 8, Issue 6 · 28 Dec 2012 · 6,779 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleON THE ABSENCE OF ANTIMATTER FROM THE UNIVERSE, DARK MATTER, THE FINE STRUCTURE PARAMETER, THE FLUCTUATIONS OF THE COSMIC MICROWAVE BACKGROUND RADIATION AND THE TEMPERATURE DIFFERENCE BETWEEN THE NORTHERN AND SOUTHERN HEMISPHERE OF THE UNIVERSEEmmanuil ManousosThe theory of selfvariations correlates five cosmological observations considered to be unrelated by the physical theories of the previous century. The absence of antimatter from the Universe, the Dark Matter, the slight variation of the fine structure parameter, the temperature fluctuations of the cosmic microwave background radiation and the temperature difference between the northern and southern hemisphere of the Universe … …Physics International, Vol. 5, Issue 1 · 28 Nov 2014 · 8,881 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleFluctuation of Brain Tissue Oxygen Partial Pressure: A Biochemical Landmark in the Arctic Ground Squirrel's Spontaneous ArousalYi Long Ma, Shu Fen Wu, Lawrence K. DuffyHibernation in the Arctic ground Squirrel (AGS) is a regulated, adaptive response to arctic environmental conditions. Problem statement: Regional brain Blood Flow (rCBF) has been observed to increase dramatically during arousal in hibernators. However, the real time dynamic change in PtO2 during arousal has not been studied, we hypothesized that PtO2 is Interdependent of Tbrain and a key component in … …American Journal of Biochemistry and Biotechnology, Vol. 7, Issue 4 · 1 Feb 2012 · 7,601 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleFluctuations of Phytoplankton Community in the Coastal Waters of Caspian Sea in 2006Siamak Bagheri, Mashhor Mansor, Marzieh Makaremi et al.Problem statement: The Caspian Sea ecosystem has been suffered with many problems since 1980s. Aanthropogenic pollution from heavy metals, hydrocarbons, pesticides, changes in the quantity of nutrient inputs by rivers, are significant threats to biodiversity and biological resources such as plankton structure in the Caspian Sea. According to the significant of phytoplankton community in marine system. The state of the … …American Journal of Applied Sciences, Vol. 8, Issue 12 · 20 Oct 2011 · 8,456 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEconomic Sanctions, Oil Price Fluctuations and Employment: New Empirical Evidence from LibyaAbdusalam Faraj Yahia, Ali Salman SalehThis research attempts to examine the links between fluctuating oil prices, economic sanctions and the employment in the Libyan economy. In particular, this study attempts to answer the basic question whether UN’s resolutions number 748 (1992) of 31 March 1992 and oil price fluctuations have any significant influence on the employment in Libya. One of this study’s key findings is … …American Journal of Applied Sciences, Vol. 5, Issue 12 · 31 Dec 2008 · 7,438 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Precipitation Fluctuation on Soil Carbon Storage of a Tropical Peat Swamp ForestAnton Eko Satrio, Seca Gandaseca, Osumanu Haruna Ahmed, Nik Muhamad Ab. MajidProblem statement: It is important to compare the effect of extremely different rainfall conditions on soil carbon storage of lowland tropical peat swamp forest. Therefore, under these natural rainfall gradient, the objectives of this study were to determine whether rainfall affects soil carbon storage of a tropical peat swamp forest and to determine what correlations between variables occurs which stimulate … …American Journal of Applied Sciences, Vol. 6, Issue 8 · 31 Aug 2009 · 8,603 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDynamic Relationship Between Rupee-Dollar Exchange Rate and Major Economic IndicatorsAbhinandan Kulal, Deepak Kallige Vishwanath, Sanath Kumar KanthilaIt is very likely that dollar to rupee exchange rate has an influence on the major economic indicators of India like the GDP of India, the NIFTY 50 index, gold prices in India, import prices in India, and crude oil prices in India. The quarterly time series data of the seven variables have been used. The time considered for the … …American Journal of Economics and Business Administration, Vol. 15, Issue 1 · 17 Aug 2023 · 6,448 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEstimation and Analysis of Output Gap: An Application of Structural Vector Autoregression and Hodrick-Prescott-FmethodsSaeed Dehghan Khavari, Seyed Hossein MirjaliliIn this study we examined output gap in the Iranian economy. The main question of the study is that how much is seasonal output gap in Iranian Economy and which factor affects gap variation. The other question is that whether using HP-F as a statistical based method for estimating output gap, provide different result than using SVAR as theory based … …American Journal of Economics and Business Administration, Vol. 4, Issue 3 · 27 Aug 2012 · 7,896 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSurvival and Changes in Germination Response of Rumex obtusifolius Polygonum longisetum and Oenothera biennis during Burial at Three Soil DepthsShiro TsuyuzakiTo investigate patterns in seed germination and survival at three different soil depths over a long time span, seeds of Rumex obtusifolius, Polygonum longisetum and Oenothera biennis were examined as a function of season (spring, autumn) and soil depth (3, 10, 30 cm). Buried seeds were exhumed after 3 years and subjected to two different temperature treatments. These were gradually … …American Journal of Environmental Sciences, Vol. 2, Issue 2 · 30 Jun 2006 · 7,194 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPeriodic Review Probabilistic Multi-Item Inventory System with Zero Lead Time under Constraint and Varying Holding CostNaglaa Hassan El-SodanyProblem statement: This study treats the probabilistic safety stock n-items inventory system having varying holding cost and zero lead-time subject to linear constraint. Approach: The expected total cost is composed of three components: the average purchase cost; the expected order cost and the expected holding cost. Results: The policy variables for this model are the number of periods N*r and … …Journal of Mathematics and Statistics, Vol. 7, Issue 1 · 29 Jan 2011 · 7,524 accessesView PDFCite