essential respiratory calculations gases and gas exchange
Báo cáo y học: "Effects of interventional lung assist on haemodynamics and gas exchange in cardiopulmonary resuscitation: a prospective experimental study on animals with acute respiratory distress syndrome" pdf
Ngày tải lên :
13/08/2014, 15:21
... stability and PaO2 and PaCO2 for gas exchange Secondary study end points were systolic and mean arterial pressures, end-tidal partial pressure of CO2(PCO2), flow through the ILA system and return ... significant effect on gas exchange (PaO2 and arterial partial pressure of CO2(PaCO2)) and a harmful effect on circulation (coronary perfusion pressure (CPP), systolic arterial pressure and mean arterial ... exert its beneficial effects on gas exchange or it may be harmful because of the arteriovenous shunt it causes We have tested the effects of CPR on circulation and gas exchange with or without an...
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Báo cáo lâm nghiệp:" Mature trees versus seedlings: Differences in leaf traits and gas exchange patterns in three co-occurring Mediterranean oaks" docx
Ngày tải lên :
08/08/2014, 01:21
... differed between seedlings and adults and to analyse the relationships between leaf traits and gas exchange at the two stages Strong relationships between leaf N content and gas exchange rates have ... the months of July and August, and summer drought occurs every year 2.2 Gas- exchange measurements Gas- exchange measurements were carried out in the field, during late spring and early summer (before ... leaf N contents and gas exchange rates [25, 27] However, the relationships between N content and photosynthesis can be affected by compromises between maximising carbon gain and water conservation...
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Báo cáo lâm nghiệp: "Response of shoot growth and gas exchange of Picea abies clones to rain acidity and the addition of ions" ppt
Ngày tải lên :
09/08/2014, 04:20
... Treatment means, pooled for the whole summer, of net C0 exchange (CER) and needle conductance (Gn) of the clones are shown in Fig a, b C0 exchange rate was reduced for all clones at pH 4.0+ as ... simulated (acidic) pre- cipitation treatment Acknowledgments Discussion and Conclusion The reduction of CER and Gn at pH 4.0 + and the significant pH x ions interaction suggest a synergism between ... & Impens (1986) Direct effects of simulated acid wet deposition on gas exchange of Norway spruce In: Direct Effects of Dry and Wet Deposition on Forest Ecosystems - in Particular Canopy Interactions...
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Báo cáo khoa học: "Respiratory compliance but not gas exchange correlates with changes in lung aeration after a recruitment maneuver: an experimental study in pigs with saline lavage lung injury" pptx
Ngày tải lên :
12/08/2014, 22:22
... with gas exchange and respiratory mechanics parameters before and after a recruitment maneuver Parameters correlating with aerated lung No significant correlations were found between the gas exchange ... 1c) and also between VPOOR and respiratory system compliance (r = 0.719, p = 0.006) (Fig 1a) and the inflation pressure maximum compliance increase (r = 0.655, p = 0.008) Effects on gas exchange ... The intrathoracic gas volume was calculated as VGAS = VTOT × HUMEAN/-1000 and the intrathoracic tissue volume was calculated as VTISS = VTOT - VGAS The lung volumes consisted of VGAS + VTISS, for...
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Báo cáo lâm nghiệp: "Growth, allocation and leaf gas exchanges of hybrid poplar plants in their establishment phase on previously forested sites: effect of different vegetation" docx
Ngày tải lên :
07/08/2014, 16:20
... in the H and LH treatments than in other treatments The Ci /Ca ratio ranged from 0.63 (LH and H treatment for the 1- and 2YS) to 0.74 and 0.76 (V and C for the 1- and 2YS respectively) and was ... removed and cool stored The eight probes from the same treatment were combined and analysed in groups of four, which resulted in two values per experimental treatment 2.6 Leaf gas exchange and leaf ... diameter and 171 cm height and those from 1YS, 9.2 mm of diameter and 129 cm height Diameter was measured using a digital calliper at a permanently marked point at breast height (2YS) and at 50...
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Báo cáo khoa học: "Effect of fungal infection on leaf gas-exchange and chlorophyll fluorescence in Quercus ilex" doc
Ngày tải lên :
08/08/2014, 14:21
... the end of the study Gas- exchange and fluorescence measurements were carried out over two years on four leaves at similar ontogenic stage (young and fully expanded) of four randomly selected plants ... infection than undisturbed plants, and if so, whether this would be reflected in gas- exchange and chlorophyll fluorescence measurements During the summer, when soil and atmospheric water deficits ... springs and autumns and hot dry summers, with a mean annual temperature of 13–14 ºC and an annual precipitation of 500–700 mm Plants were irrigated daily with 1.33 L water during autumn and winter and...
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Báo cáo khoa học: "Leaf gas exchange and carbohydrate concentrations in Pinus pinaster plants subjected to elevated CO 2 and a soil drying cycle" doc
Ngày tải lên :
08/08/2014, 14:21
... DOY 190, and in the afternoon (1500 hours solar time) on the needles used for gas- exchange measurements, the needles were cut and respectively After rapidly frozen in liquid nitrogen and stored ... (about days) and it took about week for A and plant transpiration rate to recover the pre-stress values (figures and 2) gesting In contrast to our results obtained on needles, Nguyen and Lamant ... in drought stressed Q alba, Q macrocarpa and Q stellata seedlings, Can J For Res 18 (1988) 1-5 [12] Picon C., Guehl J.M., Ferhi A., Leaf gas- exchange and isotope composition responses to drought...
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Báo cáo toán học: "The effect of elevated atmospheric CO concentration 2 and nutrient supply on gas exchange, carbohydrates and foliar phenolic concentration in live oak" ppt
Ngày tải lên :
08/08/2014, 14:21
... no effect on gas exchange, phenolics and TNC of live oak seedlings; and that interactions of CO with soil resource limitations (N) would have no effect on these variables Materials and methods ... avoid positional effects one 2.2 Gas exchange Measurements of stomatal conductance (g and C ) s exchange rate (CER) were made at the growth [CO ] with a portable gas- analysis system (LI-6200, Li-cor ... temperature, RH and PPFD in the leaf cuvette were kept at growth conditions exchange of six different were selected for harfor growth measurements, at the start of CO and nutrient treatments and continued...
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Báo cáo toán học: "Modelling age- and density-related gas exchange of Picea abies canopies in the Fichtelgebirge, Germany" docx
Ngày tải lên :
08/08/2014, 14:22
... young stands even though stand total leaf area remains high [1] A three- dimensional gas exchange model (STANDFLUX; cf [18]), which includes sub-models for light interception and for gas exchange ... stages and with intermediate forest structures, as shown for instance by Buchmann et al [13] Based on measurements of needle gas exchange [17] and gas exchange of branches without needles and trunks ... accuracy of ± 20% DISCUSSION AND CONCLUSIONS Gas exchange rates of the six Norway spruce canopies were described with the three dimensional gas exchange model STANDFLUX with one species-specific...
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Báo cáo lâm nghiệp: "Effects of elevated carbon dioxide on leaf gas exchange and growth of cork-oak (Quercus suber L) seedlings " pps
Ngày tải lên :
08/08/2014, 18:21
... examined the effects of CO enhancement i) on leaf gas exchange under well-watered conditions and moderate drought and ii) on biomass production and predict the impact of increasing CO upon natural ... plant physiology and growth (Field et al, 1992; Mousseau and Saugier, 1992) Generally, total growth of a plant is increased by elevated CO (Eamus and Jarvis, 1989), but leaf gas exchange appear ... harvested and divided into roots, stems and leaves Expanding leaves, secondary roots and stems were segmented Biomass of each part, length of the main root and stem, and total leaf area were recorded...
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Báo cáo khoa học: "Gas exchange and water relations of 3 sizes of containerized Picea mariana seedlings subjected to atmospheric and edaphic water stress under controlled conditions" pps
Ngày tải lên :
08/08/2014, 19:21
... were folded and clamped closed at the bottom end A sandy loam was used to backfill between the root plugs and the membrane to ensure the continuity of water films between the root plug and the membrane ... concentrations of 0, 40, and 80 g PEG/kg H and were used to fill 45-I basins O The concentrations correspond to water potentials of about 0, -0.04 and -0.12 MPa (Williams and Shaykewich, 1969) Four ... evaporative demand (E20: 20°C, 60% RH) or a high evaporative demand (E30: 30°C, 40% RH) The corresponding absolute humidity deficits in the cham-3 bers were 6.9 and 18.2 g m for E20 and E30, respectively...
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Báo cáo khoa học: "Growth, gas exchange and carbon isotope discrimination in young Prunus avium trees growing with or without individual lateral shelters" doc
Ngày tải lên :
08/08/2014, 23:22
... δ=R where s R and b R [1] refer to 13 ratio in the C 12 C/ Dee Belemnite standard sample and in the Pee (PDB), respectively RESULTS Microclimate, growth and gas exchange Gas exchange measurements ... were shaded all day long p I Water status and gas exchange measurements Water status and gas exchange measurements made periodically between July 11 and August 16 These measurements were carried ... transition between the shaded and the full sunlight exposed regions Gas exchange measurements were performed between 11.30 and 13.30 (UT) on leaves per tree Gas exchange parameters were calculated...
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Báo cáo khoa học: "Stomatal and non stomatal limitation of photosynthesis by leaf water deficits in three oak species: a comparison of gas exchange and chlorophyll a fluorescence data" potx
Ngày tải lên :
09/08/2014, 03:24
... photosynthesis and stomatal control of gas exchange in three coniferous species Physiol Plant 73, 97-104 Guehl JM, Aussenac G (1987) Photosynthesis decrease and stomatal control of gas exchange in ... LWC is the mean of replicates Gas exchange measurements Whole leaf gas exchange was measured in an open system designed in the laboratory Net COassimilation (A) and transpiration (E) rates were ... (Boyer, 1976) and in ribulose-biphosphate carboxylase-oxygenactivity (Vu et al, 1987) Leaf gas exchange measurements and analysis using diffusion models (Jones, 1973, 1985; Farquhar and Sharkey,...
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Báo cáo lâm nghiệp: "Gas exchange and water relations of evergreen and deciduous tropical savanna trees" docx
Ngày tải lên :
09/08/2014, 04:20
... profile A portable system was used to measure gas exchange in the field (LCA-2 system) Gas exchange calculations are according to von Caemmerer and Farquhar (1981) Leaf water potential was measured ... to be slightly higher (data not shown) We have expressed gas exchange measurements on an area-base because light interception and gas exchange with the atmosphere are areabased phenomena (however, ... instantaneous water use efficiencies (WUE) between evergreen and deciduous trees The small differences between INUE as estimated by gas exchange and as estimated by the relative amount of carbon stable...
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Báo cáo lâm nghiệp: "Effects of soil temperature on gas exchange and morphological structure of shoot and root in 1 yr old Scots pine (Pinus sylvestris L.) seedlings" pot
Ngày tải lên :
09/08/2014, 04:20
... needles is fairly low (Troeng and Linder, 1982) Enclosing them in a cuvette causes errors in A, E and g Soil temperature affected gas exchange pine seedlings In general A and E were higher in warm ... photosynthesis and water relations with age and season in Abies amabilis Gan :J For, Res 14,77-84 Troeng E & Under S (1982) Gas exchange in Change a 20-year-old Scots pine I Net photosynthesis of current and ... the first 11 d and then declined The shape of the curve is similar to that for transpiration Conclusions Initiation and development of current yr needles affected the results of gas exchange measurements...
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Báo cáo khoa học: "Effect of sedation with detomidine and butorphanol on pulmonary gas exchange in the horse" pps
Ngày tải lên :
12/08/2014, 18:22
... where z = a, v, ć PćO2 ≈ PAO2 Data on ventilation and blood gases are presented in Table 1, pulmonary gas exchange based on inert gas data in Table and circulation in Table Cardiac output (Qt) was ... Sampling of blood and expired gas for measurements of gas concentrations by the multiple inert gas elimination technique (MIGET) were performed in the unsedated standing horse (Unsedated) and started ... for the mean and standard deviation of the blood flow log distribution (Qmean and log SDQ, respectively), shunt (perfusion of lung regions with VA/Q < 0.005), and the mean and standard deviation...
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Tài liệu iPounder’s Marine Diesel Engines and Gas Turbines Eighth edition docx
Ngày tải lên :
13/02/2014, 16:20
... Printed and bound in Great Britain v Contents Preface vii Introduction ix Theory and general principles Gas- diesel and dual-fuel engines Exhaust emissions and control Fuels and lubes: chemistry and ... propulsion and gas turbines Both modes found favour in warships, however, and aero-derived gas turbines have recently secured firm niches in fast ferry and cruise tonnage A stronger challenge from gas ... circle diameters of the input and output gears are respectively = 14 POUNDER’S MARINE DIESEL ENGINES AND GAS TURBINES d1 and d and the speeds of the two shafts are n1 and n2, the circumferential...
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Tài liệu HEALTH CONTINUUM AND DATA EXCHANGE IN BELGIUM AND IN THE NETHERLANDS docx
Ngày tải lên :
16/02/2014, 20:20
... Blobel and P Pharow (Eds.), Advanced Health Telematics and Telemedicine – The Magdeburg Expert Summit Textbook ISSN 0926-9630 Health Continuum and Data Exchange in Belgium and in the Netherlands ... Knowledge and Agent Technology, Universiteit Maastricht, P.O Box 616, 6200 MD Maastricht, The Netherlands, L.Braun@cs.unimaas.nl Health Continuum and Data Exchange in Belgium and in the Netherlands ... demographic ageing and higher patient expectations, Britisch Medical Journal, 15 december 2001, 323:1388 www.rcn.org.uk Health Continuum and Data Exchange in Belgium and in the Netherlands Francis...
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Tài liệu Information technology - Telecommunications and information exchange between systems docx
Ngày tải lên :
17/02/2014, 15:20
... ARCHITECTURE* 802.10 SECURITY This standard is part of a family of standards for local and metropolitan area networks The relationship between the standard and other members of the family is shown ... purchase, market, or provide other goods and services related to the scope of the IEEE Standard Furthermore, the viewpoint expressed at the time a standard is approved and issued is subject to change ... art and comments received from users of the standard Every IEEE Standard is subjected to review at least every five years for revision or reaffirmation When a document is more than five years old and...
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