... climate and N-deposition on carbon stocks in conifer forests at 22 sites across Europe between 1920 and 2000 The bars show the effect of environmental conditions (CO2, climate and N-deposition) on ... effect of changing temperature and atmospheric carbon dioxide concentration on productivity The model is based on the work of Wang and Polglase [21] They described the structure of a carbon cycle ... to combine models of widely different levels of complexity in studies of environmental change, rather than just use one model CONCLUSIONS FROM THE TWO STUDIES • Observations of increased forest...
Ngày tải lên: 08/08/2014, 00:22
Ngày tải lên: 13/11/2014, 09:48
Experimental realization and theoretical studies of novel all optical devices based on nano scale waveguides
... potential of electron and hole , : Fermi-Dirac distribution of electron and hole : Density of states : Dipole dephasing rate : spontaneous emission time , : Incident and transmitted intensity of control ... figure of merit for photonic switching devices based on χ(3) of semiconductor, SOA and GAMOI Table 3.1: Energy band parameters of InGaAsP bulk semiconductor Table 3.2: Intraband-interband transition ... electrons stay at position and Under excitation of the photons, the electron at the corresponding photon energy will undergo interband excitation from to 2, leaving a hole at the valence band The...
Ngày tải lên: 09/09/2015, 08:14
Theoretical studies of engertics, structures and chemical reactions on carbon and BN surfaces and related molecules
... investigation of surface migration, reactions, nucleation, and growth mechanism on the respective surfaces However, currently available experimental and theoretical work on diamond and c-BN (111) ... Experiments wavefunction, one of the solutions of the eigenvalue equation This wavefunction depends on the coordinates of the electrons and the nuclei The Hamiltonian is composed of three parts: the ... single diamond crystal growth and the insulating behaviour of natural diamond The chemistry of hydrogen and oxygen on the diamond surface is not as well understood as that of silicon and theoretical...
Ngày tải lên: 17/09/2015, 17:18
Báo cáo toán học: "Antioxidant, antimicrobial, and theoretical studies of the thiosemicarbazone derivative Schiff base 2-(2-imino-1-methylimidazolidin-4-ylidene)hydrazinecarbothioamide (IMHC)" potx
... valuable information regarding the nature of functional group of IMHC The appearance of a broad strong band in the IR spectra of IMHC in 3421 cm–1 is assigned to N–H stretching vibrations of the primary ... existence of the thione form predominantly in the solid state is demonstrated by the presence of two absorption bands at 1273.7 and 3421 cm−1 belonging to the C=S and NH groups, respectively, and by ... synthesis of some bioactive compounds such as ß-lactams [16–18], and employed as ligands for the complexation of metal ions [19] SBs and their complexes are largely studied because they interested and...
Ngày tải lên: 20/06/2014, 20:20
báo cáo hóa học: " Correction: Experimental and theoretical studies of nanofluid thermal conductivity enhancement: a review" potx
Ngày tải lên: 21/06/2014, 02:20
Báo cáo lâm nghiệp: " Comparison of deposition fluxes on the open area and in mountain spruce stands of different density" pdf
... of el- RESULTS AND DISCUSSION During the studied period of 1999–2006 mean monthly sums of rainfall on the open area were 109 ± 55 mm and 120 ± 60 and 109 ± 58 mm of throughfall in the dense and ... sparse stand was vaporized faster than in the dense stand, the accumulation and consequential conflux of water below the canopy was lower and the interception of horizontal precipitation was FS ... Drápelová et al 2008) CONCLUSION Throughfall deposition fluxes of Ca, Mg, K, S-SO4, N-NO3 and N-NH4 in the mountain spruce stands of different stand density and bulk deposition fluxes on the open area...
Ngày tải lên: 07/08/2014, 04:20
Báo cáo lâm nghiệp: "The persistence and function of living roots on lodgepole pine snags and stumps grafted to living trees." pdf
... Persistence of live roots on snags and stumps 33 Figure Relationship between the percentage of living roots on snags and the circumference of the phloem connection of the graft connecting the snag to ... study of natural mortality, 83% of live snag roots were located within 90◦ of the junction of the grafted root to the tree base and only 17% were on the far side of the tree base (Fig 2) These results ... survivorship of roots relative to the position of the graft, the radial positions of all live and dead coarse roots (> cm diameter), on each snag were recorded relative to the position of the graft...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "The effects of thinning treatments on density, MOE, MOR and maximum crushing strength of Pinus brutia Ten. wood" ppt
... of stem (Tab I) Because the annual accretion of xylem at upper or lower levels of stem is a function of the capacity of the foliage to synthesize carbohydrates and growth hormones, the size of ... related to variations in both rate of xylem increment along the entire bole and in its vertical distribution along the stem As height growth is independent of stand density and the rate of radial growth ... Figure Relationship between MOE and wood density Figure Relationship between compression strength and wood density CONCLUSION The conclusions can be summarized as follows: Figure Relationship between...
Ngày tải lên: 07/08/2014, 16:21
Báo cáo lâm nghiệp:"Net effect of competing vegetation on selected environmental conditions and performance of four spruce seedling stock sizes after eight years in Québec (Canada)" ppsx
... block design and consisted of pairs of released plots and competitionfree plots, and pairs of plots with competition and competition-free plots The 10 cm-depth soil temperature was monitored from ... by non-crop vegetation ( – treated, without competition; – control, with competition) during the third growing season after spruce planting on sites (A), and (B) regardless of vegetation and ... production of various stock sizes, instead of grading seedlings within a given population; and second, to evaluate competing vegetation effects by means of competition – free seedlings, instead of...
Ngày tải lên: 08/08/2014, 01:21
Báo cáo lâm nghiệp: "The effects of transplanting stress on photosynthesis, stomatal conductance and leaf water potential in Cedrus atlantica Manetti seedlings: role of root regeneration" pdf
... promote root regeneration Assimilation rate measurements and root observations (number of growing roots and root elongation) were made just before transplanting (day 0) and then weekly from day ... system under standard environmental conditions In experiment 1, intercellular C0 concentration (c values were ) i calculated from the A and g data, which pers mits assessment of the extent to ... supply (Su) and demand (D) functions, respectively (see Fig 2) Results Experiment In the transplanted seedlings, a marked and parallel decline in both C0 assimila2 tion and stomatal conductance...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: " Effects of polyaromatic hydrocarbons on the forest ecosystem and woody plants" pot
... phenanthrene, fluoranthene and pyrene were made on lupin mitochondria Fig shows the effects of fluoranthene on lupin root and green cotyledon mitochondria Generally, the respiration was half5 inhibited ... oxidation products were studied on mitochondria isolated from green and non-green tissues from different plants The action of these compounds was investigated during mitochondrial succinate oxidation ... in control seed- were ing lings corresponding oxidation products The effects of phenanthrene, fluoranthene, pyrene, benz(a)anthracene, BaP and benzofluoranthenes were investigated on mitochondria...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: " period of glyphosate treatment on oak seedlings: phenological and physiotogical aspects" pptx
... significant effect on shoot elongation as depressive compared to the control (Fig 2) A maximum effect was observed for T! and , T and later for T! and T 8’ Glyphosate caused symptoms of phytotoxicity, ... stretching and thickening of the leaves, and shortening of the shoots Damage was treatments Discussion period of mo separated the winter glyphosate treatments from the physiological A and after ... (T! and T and decreased from T to T ) Only a few alterations were still apparent in the last treatment (T ) Enzyme activities in leaves Decreases in the activities of NAD-ME, fumarase, NAD- and...
Ngày tải lên: 09/08/2014, 04:20
Effect of cyclooxygenase inhibition on cholesterol efflux proteins and atheromatous foam cell transformation in THP-1 human macrophages: a possible mechanism for increased cardiovascular risk pot
... USA) The numbers of foam cells formed in each condition were calculated manually and presented as the percentage of foam cell formation Page of 11 (page number not for citation purposes) exposed ... of COX inhibitors We therefore examined the effect of non-selective and selective COX-1 inhibitors on 27-hydroxylase and ABCA1 expression Non-selective COX inhibition reduces 27-hydroxylase and ... on overall platelet function are still matters of controversy [24] In contrast, whereas healthy endothelial cells in culture express only COX1, COX-2 can be readily induced under conditions of...
Ngày tải lên: 09/08/2014, 10:20
báo cáo khoa học: "Effect of arginase II on L-arginine depletion and cell growth in murine cell lines of renal cell carcinoma" pptx
... Journal of Hematology & Oncology 2008, 1:14 http://www.jhoonline.org/content/1/1/14 Figure arginase inhibitor nor-NOHA on cell proliferation Effect of3 Effect of arginase inhibitor nor-NOHA on cell ... linear gradient consisting of methanol (80%) and acetonitrile (80%) The analytes in the sample were calculated on the basis of standard curves of known amounts Proliferation assays Cells (1 × 104/well/1 ... tested in triplicate Expression of CD3ζ by co-cultured Jurkat T-cells To determine the effect of L-arginine deprivation on the expression of CD3ζ, mRCC cell lines (600,000 cells/well) were cultured...
Ngày tải lên: 10/08/2014, 22:20
Experimental and theoretical studies of waste heat driven pressurized adsorption chillers
... adsorption Thus one has to consider the variation of the heat of adsorption as a function of loading, which in turn depends on the pressure and temperature at which adsorption/desorption occurs ... charging cell or condenser cond condenser cw cold water des desorption e,a end of adsorption process e,d end of desorption process eff effective, combination of copper finned-tube heat exchanger and ... first term of the right hand side indicates the conventional form of the isosteric heat of adsorption derived from the Clausius-Clayperon equation and the second term defines the behaviour of adsorbed...
Ngày tải lên: 11/09/2015, 10:01
THE MALLEABILITY OF CONSUMER BEHAVIOR EXPERIMENTAL STUDIES OF PRESENTATION FORMATS ON CONSUMER CHOICE AND PERCEPTION
... MALLEABILITY OF CONSUMER BEHAVIOR – EXPERIMENTAL STUDIES OF PRESENTATION FORMATS ON CONSUMER CHOICE AND PERCEPTION One of the significant contributions to the field of behavioral decision research ... Stimuli and Design 30 5.3 Data Analysis and Results 31 DISCUSSION AND IMPLICATIONS 39 LIMITATIONS AND FUTURE RESEARCH DIRECTIONS 42 CONCLUSION 43 TO ANIMATE OR NOT TO ANIMATE: DOES IT DEPEND ON THE ... deliberation to post-purchase evaluation, and from continued consumption to discontinuance It is frequently conceptualized as a cognitive process - a sequence of deliberation, evaluation and decision...
Ngày tải lên: 12/09/2015, 08:16
Báo cáo y học: " Effect of Weight Reduction on Cardiovascular Risk Factors and CD34-positive Cells in Circulatio"
... biological effects on the metabolism and inflammation, contributing to the maintenance of energy homeostasis and the pathogenesis of obesity-related metabolic and inflammatory complications [4] Endothelial ... restriction along with vitamin supplements and administration of human chorionic gonadotropin (hCG), a hormone that encourages metabolic utilization of visceral fat reserves [23-26] Materials and ... plasma concentrations of biochemical markers of inflammation and endothelial activation (C-reactive protein, interleukin -6, soluble adhesion molecules, von Willebrand factor, and endothelin -1)...
Ngày tải lên: 25/10/2012, 10:51
Báo cáo y học: "HLA-DR regulation and the influence of GM-CSF on transcription, surface expression and shedding
... glycosylated cell surface transmembrane protein expressed on antigen-presenting cells and constitutively expressed on monocytes Expression of HLA-DR by monocytes is essential for the presentation of peptides ... conjugate, clone L243 (Becton Dickinson, UK) and with a mouse IgG anti-human CD14 R-phycoerythrin conjugate (R-PE), clone M5E2, (Becton Dickinson, UK) to identify monocytes Briefly 100 µl of cells ... secreted by mononuclear leukocytes including monocytes It functions as a growth and differentiation factor for immature phagocytic cells and clinically it is used to enhance reconstitution of the haemopoietic...
Ngày tải lên: 03/11/2012, 09:57