sulfide carbonyl sulfide and carbon disulfide

... solutions and at pH 7.4, approximately one third of H2S exists as the undissociated form and two thirds dissociate into H+ and HS- (hydrosulfide ion); which may subsequently decompose to H+ and S2- (sulfide ... capsazepine on lung and plasma SP levels, and lung PPT-A mRNA expression in septic mice 112 Figure 4.2 Effect of NaHS and capsazepine on protein levels of cytokines and chemokines in the lung and liver ... plasma ALT and AST activities, and pulmonary edema (measured as lung wet-to-dry weight ratio) in septic mice 122 Figure 4.7 Effect of PAG and capsazepine on lung and plasma SP levels, and lung...

Ngày tải lên: 10/09/2015, 08:32

... Water and Carbon: The Chemical Basis of Life May 4, 2011 Solid ….ice! 고체…얼음 Chất rắn ወወወ băng ‫.وهي حالة ... estado de agregación de la materia en el que las sustancias no tienen forma ni volumen propio, adoptando el de los recipientes que las contienen ‫الغاز هو أحد حال ت المادة، ومثل السوائل فإن الغازا...

Ngày tải lên: 14/03/2013, 14:42

... Chemistry and Pharmacological Potential of Fullerenes and Carbon Nanotubes CARBON MATERIALS: CHEMISTRY AND PHYSICS A comprehensive book series which encompasses the complete coverage of carbon materials ... coverage of carbon materials and carbon- rich molecules from elemental carbon dust in the interstellar medium to the most specialized industrial applications of elemental carbon and its derivatives A ... fullerenes and carbon nanotubes (CNTs) play an important role These new allotropic forms of carbon have been discovered in the last two decades, and, since then, they have stimulated the curiosity and...

Ngày tải lên: 17/02/2014, 05:20

... The top soil is sandy clay loam soil and bottom soil is clay Soil texture in top soil found natural forest and 1, 5, 15 and 20 years old rubber plantations to have sandy clay loam and 10 years old ... bottom soil, natural forest and 20 years old plantations have clay soil, and 10 years old plantations have sandy clay loam to clay and and 15 years old plantation have sandy clay loam to clay soil ... Na and K (extracted with 1.0 M NH4OAc and analyzed the concentration of Na and K by flame photometry, Ca and Mg by atomic absorption spectrophotometry) Fe, Mn Cu and Zn (extracted with DTPA and...

Ngày tải lên: 21/02/2014, 04:20

... temperature to LPG and ethanol gas are respectively shown in Fig 3a and b It seems that the optimized operating temperatures of the sensor to ethanol gas and LPG are around 350 and 250 ◦ C, respectively ... Environment and Chemistry, Hung-Yen University of Technology and Education His research activities are related with the design, fabrication and characterization of organic–inorganic hybrids and nanomaterials ... N Van Hieu et al / Sensors and Actuators B xxx (2009) xxx–xxx Fig Response of PtO2 , Fe2 O3 , La2 O3 , and CuO-doped SnO2 sensors to 2500 ppm (0.25%) LPG in air (a) and 250 ppm ethanol gas in...

Ngày tải lên: 19/03/2014, 16:48

... shell and electron trapping by a carbon nanotube core and following reactions where CNT is a carbon nanotube, hVB is a hole in TiO2 valence band, eCB is a electron in TiO2 conduction band, and ... band into the conduction band leaving a hole behind Excited state conduction-band electrons and valence-band holes can recombine and dissipate as heat The valence-band holes are powerful oxidants, ... compound), glass- and carbon fibers, ceramic materials, polymers, and activated carbon have been widely used as a catalytic support However, single-walled and multi-walled carbon nanotubes have...

Ngày tải lên: 20/03/2014, 13:06

... metals Among carbon supports, activated carbon, carbon blacks and carbon black composites receive most attention The evidence supports growing interest in novel carbon supports such carbon nanotubes, ... Hydroprocessing Catalysts 3.1 Chapter Carbon Black Activated Carbon Carbon Nanomaterials Fullerenes Diamond and Graphite Involvement of Carbons Combined Effect of Carbon and Active Metals 4.2.1 Conventional ... these carbons Amorphous forms of carbons such as carbon black (CB) and activated carbon (AC) have been used in various industrial applications most extensively.1 Novel carbon materials, e.g., carbon...

Ngày tải lên: 01/04/2014, 10:26

... nanoparticles and carbon nanotubes Appl Phys Lett 2008, 92:023110 28 Lu HF, Fei B, Xin JH, Wang RH, Li L, Guan WC: Synthesis and lubricating performance of a carbon nanotube seeded miniemulsion Carbon ... thermal conductivity and stability of CNT/water nanofluids, including nanoparticle size and concentration, surfactant type and concentration, pH, temperature, power of ultrasonication and elapsed time ... stability and thermal conductivity of carbon nanotube/water nanofluids Int J Heat Mass Transf 2010, 37:319 20 Jiang WT, Ding GL, Peng H: Measurement and model on thermal conductivities of carbon...

Ngày tải lên: 21/06/2014, 04:20

... entrapment and/ or delivery of a variety of biological agents [8] Alginate is a co-polymer extracted from some types of brown algae and it is made up of two uronic acids: D-mannuronic acid and L-guluronic ... Pa, using 99.99% pure SiO2 target and 99.999% pure argon as sputtering gas) CNT Array: Properties, Imaging and Coating Alginate Thin Film Design, Production and Characterization Vertically aligned ... profile: experimental data and model fitting (n = 3) where C2 is the protein in the bulk, C10 is the concentration inside the gel, S and V1 are, respectively, the surface and the volume of film, V2...

Ngày tải lên: 22/06/2014, 00:20

... wall carbon nanotubes (SWCNT@SiO2) and Ag nanoparticles immobilized SWCNT@SiO2 (SWCNT@SiO2/Ag nanoparticles) based on the plasma-treated SWCNTs TEOS and MPTO in scheme are tetraethoxysilane and ... layer clearly exhibits fairly smooth surface and uniform thickness And the average thickness of the shell layer and inner core of SWCNT@SiO2 are about 14 and nm respectively determined by TEM observations ... solvent and chemicals are involved, which simplifies the modification process, reduces the preparation cost, and decreases the hazard to environment Herein, we explored this simple, low-cost, and green...

Ngày tải lên: 22/06/2014, 00:20

... (SEM) and Energy Dispersive X-ray analysis (EDX) were used to observe the structural morphology and composition of activated carbon RESULTS AND DISCUSSION 3.1 BET Surface Area of Activated Carbon ... activated carbon involves the determination of the total surface area, the extent of microporosity and the pore size distribution These are very important indicators for the suitability of activated carbon ... prepare and study the effect of different pyrolysis temperatures on the development of the porosity of activated carbon derived from oil palm shells activated with ZnCl2 The activated carbon was...

Ngày tải lên: 07/08/2014, 14:20

... that carbon uptake during the growing Biomass increment and carbon balance of ash Table VIII Carbon balance for each of the two periods without growth during the one-year cycle considered, and carbon ... fall in 1994 and the end of leaf fall in 1995 For trees 10 and 12, these dates corresponded to the dates of leaf collection by hand, that is, days of the year (DOY) 263 and 262 in 1994 and 1995 respectively; ... hand only partially, and then, remaining leaves had to be collected in a net enclosing the crown as and when they were naturally falling until the end of leaf fall (DOY 306 and 296 in 1994 and...

Ngày tải lên: 08/08/2014, 01:22

... correspond to standard error stand, 1.3 m2 for the 25-year-old stand and 0.3 m2 for the young, 8year-old stand The roots were dug out for the 25 and 8-year-old stand For the 50-year-old stand, no root ... the 50-old-year old stands, by 81.7% between those of 50- and 81-years-old, by 49.2% between those of 81- and 145-years-old and 100% between 145-years-old stand and the stand at the end of regeneration ... distribution of the aerial carbon biomass between the trunk and the branches was respectively 75% and Carbon biomass, distribution and exportation 25% in the 81-year-old stage, and 58% and 42% in the 145year-old...

Ngày tải lên: 08/08/2014, 01:22

... layer (Tiglian) and deeper down another sand layer (sands of Brasschaat, Pretiglian) [3] The stand has been described as a moderately wet sandy soil with a distinct area 40 humus and/ or iron B ... examination of stands of similar height and development [47] The relative contribution of needles and fine roots (and to a lesser degree of branches and coarse roots) decreases with stand age In addition, ... global C budget and, therefore, aid in the understanding of the source-sink relationships among, and the potential storage capability of, forest ecosystems DISCUSSION Stand age and site quality...

Ngày tải lên: 08/08/2014, 14:21

... size Both CO and N treatments had small effects on leaf, stem and root C concentrations (tables I and II) CO enrichment had significant effects on C/N ratios (tables I and II) of stem and roots ... atmospheric carbon dioxide and temperature on carbon partitioning, source-sink relations and respiration, Plant Cell Environ 14 (1991) 819-830 [19] Griffin K.L., Thomas R.B., Strain B.R., Effects of and ... SWR and RWR (g·g ) -1 was determined as the fraction of plant dry weight belonging to leaves (L), stem (S) and roots (R), respectively; and the root-shoot dry weight ratio (RSR; g·g ) -1 and...

Ngày tải lên: 08/08/2014, 14:21

... (Abrams and Knapp, 1986; Bragg et al, 1993) Q marilandica and Q stellata are common associates on nutrient-poor and droughty sites throughout the Missouri and Oklahoma Ozarks In eastern and central ... water stress and the limit overall carbon fixation Carbon allocation patterns are predictable and dependent on the particular stage of the flush cycle Carbon flow between starch and sucrose may ... and Abrams, 1993) Differences in stomatal response, resistance to water stress and increased water-use efficiency also are found when xeric and mesic oak species are compared and when xeric and...

Ngày tải lên: 08/08/2014, 18:21

... Medina and Minchin, 1980 ; Francey and Farquhar, 1982 ; Medina et al, 1986 ; Gebauer and Schulze, 1991).In the present study, different light regimes and associated small differences in T and ΔW ... parameter for understanding and modelling the spatial structure of CO assimilation in plant canopies (Aussenac and Ducrey, 1977 ; Ducrey, 1981 ; Oren et al, 1986) but understanding and modelling efficiency ... b /R s 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...

Ngày tải lên: 08/08/2014, 23:22

... resulted in a higher meta- bolic activity Discussion and Conclusion Similar to the findings of Hansen (1967) and Kandiah (1979) on apple, and of others on other species, the export of assimilates ... newly accumulated dry matter ts (DMW) soecific radioactivities (SR) and total labeled less than that already in place (compare DMW and SR) There was apparently, however, some radioactivity still ... after the October lanone in the wood, little in the cortex, a little more in the pith and a lot in the buds and the abscission zones which were active at that time beling was quite simple: Quantitative...

Ngày tải lên: 09/08/2014, 03:24

... Δ was reduced Drought reduced g (-28 and -29 %, under high and low irradiance, respectively) and A (-14 and 17 %), and as a result enhanced A/g (+14 % and 11%) The increase of A/g induced by ... gas-exchange), and influences Δ Instant and simplified relationships for C plants were presented by Farquhar an water-use 2.5 Growth variables and carbon isotope analysis Height and water consumption ... plant R and Rare the carbon isotope ratios of the plant and the atmosphere, respectively, and δ is the carbon isotope composition relative to the Pee Dee Belemnite Standard We checked that...

Ngày tải lên: 09/08/2014, 04:20

... controlled and monitored with an IRGA and the hourly C0 uptake or evolution was computed (La- pierre et al., 1983) Results tering, cell divisions and expansion started again Newly expanded leaves ... Autotrophy of expanding leaves in poplar has been demonstrated (Larson et aL, 1980) and carbon nutrition stimulation could be particularly significant by stimulating autotrophic carbon supply in ... final reduces the expansive growth of leaf cells (Cleland, 1971) and that water stress reduces the final size of the epidermal cells (McCree and Davies, 1974) The present results show that poplar...

Ngày tải lên: 09/08/2014, 04:20