intensity flux density and luminosity
CHAPTER 3: ELECTRIC FLUX DENSITY, GAUSS''''S LAW, AND DIVERGENCE ppt
Ngày tải lên :
07/08/2014, 20:23
... displacement flux density or displacement density Electric flux density is more descriptive, however, and we shall use the term consistently The electric flux density D is a vector field and is a ... electric flux density We have actually obtained it already and now have little more to than point it out and name it, for starting from Gauss's law, D Á dS Q S and letting
Q vol v dv and then ... ELECTRIC FLUX DENSITY, GAUSS'S LAW, AND DIVERGENCE FIGURE 3.7 The divergence theorem states that the total flux crossing the closed surface is equal to the integral of the divergence of the flux density...
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Báo cáo khoa học: "Interpreting the variations in xylem sap flux density within the trunk of maritime pine (Pinus pinaster Ait.): application of a model for calculating water flows at tree and stand levels" pdf
Ngày tải lên :
09/08/2014, 04:20
... and micrometeorological vari- In order to analyse the between-tree variof sap flux density, we collected sap flux data from three different experiments, at the Bray Site in 1989 and in 1994 and ... between its daily sap flux the sap flux density density, , i Σj and age value of 15 soil psychrometric chambers used in dew-point mode (Wescor soil psychrometer) and buried at five depths ... the liquid water flux expressed i in kg·m Jr storage flux, R , -1 ·s the -2 i i ·s) ·m -1 (MPa·kg and C (kg·m ) -1 ·MPa i -2 the resistance and capacitance of the compartment and Ψ its water...
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Tài liệu AIR POLLUTION AND GENETIC INFLUENCES ON BONE MINERAL DENSITY AND OSTEOPOROSIS pdf
Ngày tải lên :
18/02/2014, 04:20
... density, a major determinant of bone strength and fracture risk [16] The aim of this study was to investigate the associations between some genetic and non genetic osteoporosis risk factors and ... mineral density and osteoporosis in subjects with osteopenia and osteoporosis RESULTS The studied subjects, who met the inclusion criteria, had mean age 62.2 years, ranging between 44 and 70 years ... μg/mc until 2009 and now is 20 μg/mc Monthly evolutions of mean concentration of NO2 and PM 10 in 2009 are presented in Figures and Evolutions of mean annual concentrations of NO2 and PM 10 between...
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Báo cáo khoa học:The principle of flux minimization and its application to estimate stationary fluxes in metabolic networks docx
Ngày tải lên :
07/03/2014, 15:20
... of the network will be notated ð0Þ such that under standard conditions DGj £ 0, Kequ ! 1, i ị and thus vj > vj ẳ The second term in the righthand side of Eqn (5) depends upon the actual concentrations ... so-called 2,3-bisphosphoglycerate shunt; and the pentose phosphate cycle, comprising an oxidative and a nonoxidative part The model comprises 30 reactions and 29 metabolites, whereby only 25 metabolites ... net reaction under standard conditions for which reactions 3, 5, 6, 7, 11 and 29 differ from the direction under in vivo conditions Reactions, enzymes, equilibrium constants and metabolites are...
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Mammographic density and breast cancer risk: the role of the fat surrounding the fibroglandular tissue pdf
Ngày tải lên :
22/03/2014, 17:20
... Ministry of Health, Welfare and Sports (VWS); and ZONMw We thank Statistics Netherlands (CBS) and Netherlands Cancer Registry (NKR) for data on cancer and death, and screening organization ‘Bevolkingsonderzoek ... K, Pruthi S, Brandt KR, Pankratz VS: Mammographic density, breast cancer risk and risk prediction Breast Cancer Res 2007, 9:217 McCormack VA, dos Santos Silva I: Breast density and parenchymal ... relationship between breast measures and breast cancer risk by calculating odds ratios and their 95% confidence intervals (95% CI) for quintiles of percent density, dense area and non-dense area Quintiles...
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Density and Viscosity of Water_1 pdf
Ngày tải lên :
19/06/2014, 16:20
... 4:52 PM Appendix Density and Viscosity of Water 20 1000 990 16 14 980 12 10 970 960 0 10 © 2003 by A P Sincero and G A Sincero 20 30 40 50 60 70 Temperature °C 950 80 90 100 Density, kg/m3 Dynamic ... Proton rest mass Speed of light in vacuum Standard temperature and pressure (STP) Standard room temperature Universal gas constant © 2003 by A P Sincero and G A Sincero Value 12 −27 - the mass ... 22.4 liters at STP of 0°C and atm 359 ft ideal gas at STP of 0°C and atm −27 1.6749286(10 ) kg −34 6.6260755(10 ) J-s −27 1.6726231(10 ) kg 2.99792458(10 ) m/s atm and 0°C 25°C −2 8.205784(10...
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Density and Viscosity of Water_2 pdf
Ngày tải lên :
19/06/2014, 16:20
... and his wife Silvina, and to my sisters-in-law: the late Basilides and her late husband Dr Alfonso Madarang, Clarita and her late husband Elpidio Zamora, Luz and her husband Perpetuo Apale, and ... brother Meliton and to his wife Nena; to my sister Anelda and to her husband Isidro; to my other sister Feliza and to her husband Martin; and to my brother-in-law Col Miguel M Alivio, MD and to his ... measurements and flow and quality equalization; pumping; screening, sedimentation, and flotation; mixing and flocculation; conventional filtration; advanced filtration and carbon adsorption; and aeration,...
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Density and Viscosity of Water_3 potx
Ngày tải lên :
19/06/2014, 16:20
... Judiciary and Judicial Procedure Labor Mineral Lands and Mining Money and Finance National Guard Navigation and Navigable Waters Navy (repealed) Patents Patriotic Societies and Observances Pay and ... sedimentation, and flotation; mixing and flocculation; conventional filtration; advanced filtration and carbon adsorption; and aeration and stripping Part III, Unit Processes of Water and Wastewater ... quantity and constituent physical and chemical characteristics of water and wastewater Part II, Unit Operations of Water and Wastewater Treatment, includes the chapters on flow measurements and flow and...
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Density and Viscosity of Water_4 pdf
Ngày tải lên :
19/06/2014, 16:20
... supplies, agricultural and industrial uses, and the protection and propagation of a balanced population of shellfish, fish and wildlife, and allow recreational activities in and on the water, the ... International, Regional and National Standardisation 1.3.2.3 National Standardisation 1.3.3 Standard Methods of Main Parameters 1.3.3.1 Biological Oxygen Demand 1.3.3.2 Chemical Oxygen Demand 1.3.3.3 Total ... Algae, Protozoa and Helminths in Fresh and Drinking Water Edited by André van der Beken, Giuliano Ziglio and Franca Palumbo Analytical Methods for DrinkingWater: Advances in Sampling and Analysis...
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báo cáo hóa học:" Risk factor analysis for early femoral failure in metal-on-metal hip resurfacing arthroplasty: the effect of bone density and body mass index" potx
Ngày tải lên :
20/06/2014, 07:20
... measuring bone density The T-score relates bone density to young, healthy, race and gender-matched bone It is easily obtained and provides an objective quantitative number The T-score and body mass ... such as bone mineral density, body mass index, age, gender, and femoral component size has been demonstrated in many studies as an aid in decreasing the rate of revisions and improving the outcomes ... femoral neck fracture and two for femoral component loosening These occurred in two female and three male patients In the multi-variable regression model, only T-score and body mass index showed...
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Density and hardness of negative pastes of lead–acid batteries containing organic additives with or without quinone structure pdf
Ngày tải lên :
05/07/2014, 20:21
... / Journal of Power Sources 158 (2006) 1106–1109 1109 Results and discussion Conclusions 3.1 Stick insertion depth test The density and hardness of the negative pastes of lead–acid batteries, that ... the total structure of organic additives affects the density and hardness of the paste Commercial lignin derivatives (Vanillex N, Vanisperse A, and Indulin AT) have also been characterized by means ... paste It is found that the density and hardness of the paste containing either anthracene or anthraquinone are almost the same as those without additives, both before and after the addition of...
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Báo cáo lâm nghiệp: "Effect of species composition, stand density and site index on the basal area increment of oak trees (Quercus sp.) in mixed stands with beech (Fagus sylvatica L.) in northern France" potx
Ngày tải lên :
07/08/2014, 16:20
... pure oak stands For oak, Fagacées describes the stand basal area increment as a function of dominant height, height increment of the dominant trees, and stand density To allocate the stand basal ... consider stand density (Rdioak+beech ), admixture of beech (mixbeech ), stand (age ageoak ), and site quality (SIoak ) as potentially influencing variables We calculated the stand density in two ... stand density rule calculated by Dhôte and Le Moguédec [15], and then applied them to the dataset available of oak and beech for northern France Due to differences in the underlying datasets and...
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Báo cáo lâm nghiệp: "Age trends in genotypic variation of wood density and its intra-ring components in young poplar hybrid crosses" doc
Ngày tải lên :
07/08/2014, 16:20
... found in Zhang and Morgenstern [48] and Koga and Zhang [25] Age trends in changes and variation of mean wood density and its components, minimum and maximum densities, ring width, and composite ... 3, 6, and 10 yr old of hybrid poplar clones at four sites combined: means and standard errors, F-criteria and probability of fixed effects and variance components and standard errors for random ... hybrids: (a) ring width and mean wood density, (b) ring width and minimum wood density, (c) ring width and maximum wood density, (d) mean and minimum wood densities, (e) mean and maximum wood densities,...
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Báo cáo lâm nghiệp: "Tree density and site quality influence on Pinus halepensis Mill. reproductive characteristics after large fires" pdf
Ngày tải lên :
07/08/2014, 16:21
... age and environmental conditions), in order to evaluate cone and seed characteristics, as well as the canopy-stored seed bank depending on differences in climate and tree density MATERIALS AND ... within the sites Each site represented a different stand tree density and climate conditions (Tab I) They were located randomly within the sites and were circular in design (r = 10 m; 350 m2 ) Each ... sub-humid (CAR, SUR and TAR), southern dry (TUS and YES) and southern semi-arid (CAL) precipitation zones [36] So the study compared six different values for tree density and three for site quality...
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Báo cáo lâm nghiệp: " Influence of environmental conditions on radial patterns of sap flux density of a 70-year Fagus crenata trees in the Naeba Mountains, Japan" ppsx
Ngày tải lên :
08/08/2014, 00:21
... Stand density is ca.1200 stems per ha, the mean stand canopy height is 19.1 m, the mean diameter at breast height (DBH) is 20.9 cm, and the age of trees is 70-year LAI of the canopy is 5.2, and ... intervals (RS-11, TABAI-ESPEC, Japan) and subsequently used to calculate vapor pressure deficit [33] 2.3 Sap flux density (SFD) measurements Xylem sap flux density (SFD) was monitored continuously ... study The PPFDday and VPDday peaked on the summer solstice, and decreased gradually thereafter with transition to winter (Figs 2A and 2C) The relation between PPFDday and θday and the relation...
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Báo cáo lâm nghiệp:"Influence of basic density and temperature on mechanical properties perpendicular to grain of ten wood tropical species" pot
Ngày tải lên :
08/08/2014, 01:21
... fracture test (Pf, sf and Gf) and basic density The parameters a and b are calculated to adjust the theoretical law to experimental data (table III) Correlation between Gf and basic density is less ... from compression test (ER, sy and W20%) and x is the basic density The parameters a and b depend on wood species, but the question concerns the dependence between a, b and temperature We tried two ... deformation and energetic criteria) are chosen to describe load displacement curves from these tests Evolution of each criterion is analysed respect to basic density and temperature MATERIALS AND METHODS...
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Báo cáo khao học: "Genetic trends in wood density and radial growth with cambial age in a radiata pine progeny test" ppt
Ngày tải lên :
08/08/2014, 14:20
... random family effect with mean zero and variance σ2F; BxFij is the random interaction or plot effect with mean zero and variance σ2BF; and eijk is the random residual effect with mean zero and ... several sites in New Zealand, Cown and Ball [6] also measured average ring density and determined that heritabilities of wood density located at the juvenile (rings to 10) and mature (rings 11 +) ... parameters: (3) VAx = 4σFx and (4) Cov(Ax , Ay ) = 4CovFxy where VAx and σ2Fx are the additive genetic variance and family variance component for trait X, respectively; and Cov(Ax,Ay) and CovFxy are the...
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Báo cáo khoa học: "Density and population structure of the natural regeneration of Scots pine (Pinus sylvestris L.) in the High Ebro Basin (Northern Spain)" ppt
Ngày tải lên :
08/08/2014, 14:21
... (soils with sand content higher than 80%) and the variables included in the final predictive models for total density and main crop density Model (Adj–r2) Variable d.f Parameter estimate Standard error ... Plots of the total height by age-class and stand Stands with a mean age of less than two years have been excluded (Stands and 5) 284 S.C González-Martínez and F Bravo 285 Natural regeneration of ... total density and main crop density Model (Adj–r2) Variable d.f TOTAL DENSITY (0.5378) CONSTANT TIME PC PC 1 1 MAIN CROP DENSITY (0.5087) CONSTANT Prep1 PC PC 1 1 Parameter estimate Standard...
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Báo cáo khoa học: "Stem basic density and bark proportion of 45 woody species in young savanna coppice forests in Burkina Faso" pdf
Ngày tải lên :
08/08/2014, 14:21
... and lianoid growth and identification of species and families follows Guinko [9] Figure Rainfall patterns in mm per year and the geographical position of four forest stands: Sa, Tiogo, Yabo and ... (Dob0.5, Dub0.5, and DDryub0.5), basic density (BDub and BDob), bark percentage (BM% and BV%) and moisture content (MC ob%) Simple linear regressions were fit to BDub on Dub0.5 and to BM% on Dub0.5 ... (6) where β0, β1 and β2 are coefficients, α is a random tree effect and i is the tree number and j is the disc number within the tree All αi and εij are assumed to be independent and have a normal...
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Báo cáo lâm nghiệp: "Photosynthetic response quantum flux density" docx
Ngày tải lên :
09/08/2014, 04:20
... fluctuations of photon flux density on anatomical and photosynthetic characteristics of soybean leaves Photosynth Res 13, 81-89 Rabinowitch E (1956) In: Photosynthesis and Related Processes Vol ... and photosynthesis was rapidly totally inhibited These leaves were able to photosynthesize under constant illumination We suggest that they are unable to establish efficiently the different fluxes ... physiological and genetic characteristics The response depends upon the accuracy of the initiation of the References Dietz K.J & Foyer C (1986) The relationship between phosphate status and photosynthesis...
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