ライフサイエンスコーパス: gas

1 ylindrical samples and exposed to 100% CO(2) gas at 50% RH for 24 h, during which they cemented into

2 currently producing a high-purity O(2)/CO(2) gas mixture (1:2 molar ratio at stoichiometric operation

3 rvention, the algorithm controlled O(2):H(2) gas partial pressures to approach a target average Cu ox

4 ed into a comprehensive two-dimensional (2D) gas chromatography (GC x GC) system coupled with low- an

5 A gas chromatography-combustion-isotope ratio mass spectro

6 en and Mg(2+) in solution were detected by a gas chromatography-thermal conductivity detector and ion

7 Here we demonstrate a gas-phase synthesis method that substantially transforms

8 catalyze the transformation of methane in a gas-phase ion trap experiment via nonoxidative coupling

9 entation of a desolvation device, that is, a gas-exchange device (GED), can improve the detection eff

10 es is enabled through the decomposition of a gas-blowing agent in which a large amount of gas is prod

11 fficiency of cross-links, here, we present a gas-phase separation strategy using high-field asymmetri

12 with the cardiovascular system to accomplish gas exchange.

13 cate that metabolic oscillations in acetogen gas fermentation are controlled at the thermodynamic lev

14 s by semivolatile thermal desorption aerosol gas chromatography (SV-TAG) were used to investigate how

15 Here we show that C(2+) n-alkane gases (ethane, propane, butane, and pentane) are initial

16 Otherwise, all gas bubbles that form undergo, possibly oscillatory, gro

17 spectrometry, thin-layer chromatography, and gas chromatography-flame ionization detection analytical

18 These findings and gas exchange analyses of quintuple/sextuple ABA receptor

19 can be formed via both surface-mediated and gas-phase pathways.

20 specimens, next-generation metagenomics, and gas chromatography mass spectrometry.

21 lysis, transmission electron microscopy, and gas chromatography-mass spectrometry.

22 ana using passive organic vapor monitors and gas chromatography/mass spectrometry to determine if sel

23 onship exists between the density of oil and gas (OG) development, increasing stream water concentrat

24 aters associated with unconventional oil and gas (UOG) activities in offshore regions are nonexistent

25 Methane (CH(4)) emissions from oil and gas activities are large and poorly quantified, with ons

26 to constrain the global estimates of oil and gas entering the marine environment.

27 Introduction of oil and gas extraction wastewaters (OGWs) to surface water leads

28 rapid growth in U.S. unconventional oil and gas has made energy more available and affordable global

29 or "fracking" have led to a boom in oil and gas production in the Eagle Ford shale play, Texas, one

30 that were developed for conventional oil and gas reservoirs would require empirical parameters to be

31 Extrapolating to the 2019 oil and gas well inventory yields well average emissions of 55.6

32 number of horizontally drilled shale oil and gas wells in the United States has increased from nearly

33 zation parameters (radio frequency power and gas flow rates) were tested in the presented experiments

34 ations that include chemical separations and gas scrubbing.

35 is ratio was related to both lung tissue and gas recruitment (R = 0.266, p = 0.008, R = 0.357, p = 0.

36 as-fired units with low utilization, such as gas turbines, make DAC look favorable for these units.

37 he organization of inanimate systems such as gases or liquids is predominantly thermodynamically driv

38 that culicine larvae respire via atmospheric gas exchange.

39 association of two highly degenerate atomic gases(7,8).

40 Energetic collisions with background gas can cause structural changes ranging from unfolding

41 B dye by employing iron ions catalyst based gas diffusion cathodes, (GDCs).

42 neous arterial and jugular venous bulb blood gas samples were recorded prospectively.

43 extracorporeal carbon dioxide removal, blood gas values were significantly improved at 24 hours, as w

44 Cardiorespiratory and arterial blood gases were collected throughout both exercise tests.

45 ) ), FMD (Duplex ultrasound), arterial blood gases, Hct and [Hb], blood viscosity, and NO metabolites

46 Radial artery and femoral venous blood gases were measured.

47 rylene (OCR), which was associated with both gas and particle phases, and avobenzone (AVB), which was

48 ted in the presence of an inert, neat buffer gas, usually nitrogen or helium.

49 urine and fecal metabolites were analyzed by gas chromatography and liquid chromatography-mass spectr

50 Seven UV compounds were analyzed by gas chromatography-tandem mass spectrometry (GC-MS/MS) w

51 Measuring WUE(i) by gas exchange measurements is laborious and time consumin

52 nd diet-related metabolites were measured by gas chromatography.

53 ternal volume, (3) the use of helium carrier gas to minimize nonideal mixture behavior, and (4) the d

54 applications including synthetic chemistry, gas valorization, and greenhouse gas remediation.

55 on column and a micromachined chemoresistive gas sensor fully integrated into a device that communica

56 s analyzed by size-exclusion chromatography, gas-phase electrophoretic mobility macromolecular analys

57 otational velocity and large content of cold gas remain challenging to reproduce with most numerical

58 rochemical calcination produces concentrated gas streams from which CO(2) may be readily separated an

59 metry (GC-MS/MS) with sum of concentrations (gas + particle phase) ranging from 80 to 2030 pg/m(3).

60 Cracked gas oil, cedarwood Virginia oil, and lavender oil served

61 So far, the only quantum degenerate gas of molecules has been created via association of two

62 ensation(1,2), the use of quantum degenerate gases of atoms has enabled the quantum emulation of impo

63 We demonstrate gas cluster ion beam scanning electron microscopy (SEM),

64 tom-built polymerase chain reaction devices, gas-phase analyte detection systems, chemical robots and

65 and bimetallic nanoparticles using different gas phase and liquid phase reactions.

66 ing coupled to comprehensive two-dimensional gas chromatography - time-of-flight mass spectrometry (G

67 developed for comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spec

68 r results when analyzing up to four discrete gas-phase fractions.

69 ensities and volumes of liquid oil droplets, gas bubbles, and two-phase droplet-bubble pairs.

70 A two-dimensional electron gas in a magnetic field is a model system where optical

71 , we create a three-dimensional hot electron gas through two-photon photoemission from a copper surfa

72 prolate shape transformation of the electron gas, and periodic and long-lived electron cyclotron osci

73 semiconductors and two-dimensional electron gases where the charge degree of freedom can be actively

74 ave and mid-wave infrared lasers has enabled gas-phase high harmonic generation (HHG) in the water wi

75 The filters used for sampling exhaust gases tend to lighten with an increase in engine speed a

76 ormaldehyde (HCHO, formed in vehicle exhaust gases by incomplete combustion of fuel) on the performan

77 in the case of absorbing R-134a at a high F-gas partial pressure.

78 ncy of 71 % with 10 % O(2) in the CO(2) feed gas.

79 The growth pressure of the nitrogen feed gas was varied while the growth temperature remained con

80 cess CO(2) and limited H(2) in the feedstock gas is not favorable for CO(2) hydrogenation to methanol

81 monstrated the unique abilities of the first gas chromatography-molecular rotational resonance spectr

82 the role of coal-fired power plant wet flue gas desulfurization (FGD)-associated bromide loads on in

83 For gas giant planets such as Jupiter, the motion of clouds

84 , have been recently receiving attention for gas sensing.

85 ting the opportunities that are provided for gas-phase research on neutral peptides.

86 The obtained material was tested for gas phase and liquid phase olefin metathesis and exhibit

87 TD) techniques, such as the filter inlet for gases and aerosols, are widely employed to investigate t

88 inert support (SiO(2)) for the halide-free, gas phase carbonylation of methanol to AA.

89 In BC, the total GHG emission from gas SCVF is estimated to reach about 75,000 t/y based on

90 Greenhouse gas emission intensities for ethanol vehicles ranged fro

91 sment to calculate the energy and greenhouse gas (GHG) footprints of irrigation.

92 nitrogen loss, conservation, and greenhouse gas emissions.

93 chemistry, gas valorization, and greenhouse gas remediation.

94 ity protection and land use-based greenhouse gas mitigation call for increases in the effectiveness a

95 fers is needed to mitigate global greenhouse gas emissions; monitoring the mechanical integrity of re

96 e to population collapse, if high greenhouse gas emissions continue.

97 ut drought risks will be lower if greenhouse gas emissions are cut aggressively.

98 ts as a consequence of increasing greenhouse gas emissions.

99 12.7-29.5 under a high-intensity greenhouse gas (GHG) emissions and urban development pathway.

100 present, but, without mitigating greenhouse gas emissions, this can decrease to 3.5 years by 2100.

101 eds forest gain, leading to a net greenhouse gas emission that exacerbates global climate change.

102 with the potential to reduce net greenhouse gas emissions.

103 y use accounts for roughly 20% of greenhouse gas (GHG) emissions in the United States.

104 plain non-normal distributions of greenhouse gas (GHG) fluxes, also known as hot spots and hot moment

105 ard a comprehensive assessment of greenhouse gas emission by aquatic ecosystems.

106 ion to reduce its contribution of greenhouse gas emissions.

107 integration of a dense network of greenhouse gas sensors with a science-driven building and street-sc

108 As a potent greenhouse gas and an ozone-depleting agent, nitrous oxide (N(2)O)

109 of global emissions of the potent greenhouse gas methane (CH(4)).

110 latory program designed to reduce greenhouse gas emissions from the electric power sector within the

111 push back the timeline to reduce greenhouse gas emissions, largely undermining the Paris goals.

112 ion emission factor used in EPA's greenhouse gas inventory (GHGI).

113 s critical to understand how soil greenhouse gas (GHG) emissions and uptake will respond to ongoing c

114 Since the greenhouse gas (GHG) emissions associated with landfilling waste ca

115 ban food systems by examining the greenhouse gas emissions associated with food transport.

116 dels that characterize life cycle greenhouse gases from electricity generation are limited in their c

117 or emits 25% of global industrial greenhouse gases, and the U.S. is the world's second-largest steel

118 Factors influencing production of greenhouse gases nitrous oxide (N(2)O) and nitrogen (N(2)) in arabl

119 l activity mediates the fluxes of greenhouse gases.

120 ponse to rising concentrations of greenhouse gases.

121 ndfilling, but emissions of other greenhouse gases, odorous/toxic species, and reactive compounds can

122 matter (DOM) in surface waters to greenhouse gases.

123 anced Raman spectroscopy (FERS) of headspace gases as an alternate tool to study methanogenesis and s

124 nary mechanistic study reveals that hydrogen gas is released during the reaction, and both light and

125 ingle-chromophore photocatalyst for hydrogen-gas generation and operates with irradiation wavelengths

126 Hyperpolarized gas MRI was more sensitive to changes in response to bro

127 tion is an effective intervention to improve gas exchange in patients with severe acute respiratory d

128 ntheses of oxygenated products from CH(4) in gas-phase heterogeneous catalysis.

129 covered a wide range from being primarily in gas-phase (TEP, TnBP) or particle-phase (EHDPP, TEHP, T2

130 tive MS of membrane proteins often result in gas-phase protein unfolding or loss of noncovalent inter

131 gy) endows materials with high tunability in gas sorption.

132 ional stoves in addition to the intervention gas stove) may occur.

133 dissociated methyl disfavors desorption into gas phase under the reactive conditions.

134 confirming the existence of hot intracluster gas, while deep imaging spectroscopy from the European S

135 that the relationship between an intraocular gas bubble and contact with the retina has been evaluate

136 dust emission and line emission from ionized gas(6-10).

137 , radial-velocity gradient and total ionized-gas mass of the Magellanic Stream.

138 de avoidance is regulated by a three-layered gas-and-brake mechanism of bHLH protein interactions, ad

139 s using stable carbon isotope analysis, leaf gas exchange and eddy covariance (EC) fluxes.

140 photosynthesis in grasses, we examined leaf gas exchange, anatomy and ultrastructure, and tissue loc

141 ntitatively test model against multiple leaf gas-exchange datasets.

142 release, we found a gradual recovery of leaf gas exchange to 50% to 60% of control values.

143 l and mesophyll development for optimal leaf gas exchange, and that both genetic and physiological fa

144 mass loss required to reduce a Jupiter-like gas giant, they can remove a small (a few Earth masses)

145 ver, the physical relationship between local gas clouds has remained unknown because the accuracy in

146 rom equilibrium in the most thermally mature gases.

147 The paper presents a parallel micro gas chromatography approach using three ionic liquid sem

148 elop a headspace solid-phase microextraction gas chromatography-mass spectrometry (HS-SPME-GC-MS) met

149 Using a modified gas exchange setup, we measured the effects of diffuse l

150 also suggest that the mass of the molecular gas outflow is not negligible and could affect the rate

151 onger path to the surface and contained more gas than the shallower impact-induced melt chamber brine

152 e extent to which leaf and plant morphology, gas exchange, leaf and stem hydraulics and growth rates

153 Natural gas migration in the subsurface can have environmental i

154 Natural gas vehicles (NGVs) have been promoted in China to mitig

155 works (wastewater, water supply, and natural gas).

156 Many of the existing natural gas combined cycle (NGCC) units are suitable for postcom

157 (1) quantify methane emissions from natural gas leaks and incomplete combustion while off, turning o

158 maxima over regions with the highest natural gas production and were correlated with nitrogen-dioxide

159 lectrification of applications, like natural gas furnaces for space heating, that currently involve b

160 ear period, is the main component of natural gas (NG).

161 to a loss rate of 2.9% [2.2-3.8%] of natural gas production.

162 ower plants with new wind, solar, or natural gas to meet a CO(2) reduction target in the United State

163 of postcombustion capture for small natural gas-fired units with low utilization, such as gas turbin

164 r next generation membranes for sour natural gas separation.

165 ng literature linking unconventional natural gas development (UNGD) to adverse health has implicated

166 e cost of carbon capture from the US natural gas-fired electricity generating fleet comparing two tec

167 toves and replacing these fuels with natural gas may be useful interventions to reduce the burden of

168 en to predicting the compositions of natural gases as functions of time, temperature, and source subs

169 to commercial ESI sources using nebulization gas to reduce discharge, 10-100-fold enhancement in sign

170 sed as protectants against insects and nerve gases.

171 In the case of a so-called nES gas-phase electrophoretic mobility molecular analyzer (n

172 inear decrease in volatile reactive nitrogen gas flux (NO(y) = NO, NO(2) , HONO) as ECM tree abundanc

173 f ammonia in air with conversion to nitrogen gas without the supply of an extraneous electron donor f

174 tible with a role for the fast-diffusible NO gas in signaling and cell-cell communication via the mod

175 fic ventilation maps as a surrogate of noble gas MRI and to validate this approach across a wide rang

176 ilation defects and were compared with noble gas MRI scans using the Dice similarity coefficient (DSC

177 ncentration of xenon compared to other noble gases in Earth's atmosphere.

178 ater or MgSO(4) did not affect CO(2) /H(2) O gas exchange or stomatal conductance significantly, indi

179 gas-blowing agent in which a large amount of gas is produced in situ to "puff" the droplet during hea

180 Therefore, this paper presents analysis of gas and particulate samples taken from the cylinder and

181 mic equilibrium, either at the conditions of gas formation or during reservoir storage, becoming indi

182 w, the first direct experimental evidence of gas-phase methyl radicals (CH(3) (.) ) in the ODHP react

183 (SVUV-PIMS), which uncovers the existence of gas-phase radical pathways.

184 l tracheal trunks (DTTs) by the expulsion of gas bubbles into the body.

185 ostructural modification is the formation of gas bubbles, which is revealed at all studied irradiatio

186 ive species to facilitate the interaction of gas reactants and catalyzing CO oxidation.

187 ntally and computationally, the mechanics of gas percolation under hydrate-forming conditions.

188 ean +/- standard deviation in milliliters of gas per milliliters of parenchyma, 0.17 mL/mL +/- 0.06 [

189 in Nevada to evaluate the possible modes of gas transport to the surface.

190 In vitro, the onset of gas production was significantly delayed with psyllium (

191 Recent advances in the photochemistry of gas-phase oxidized Hg(I) and Hg(II) species postulate th

192 eview summarizes the different properties of gas hydrates as well as their formation and dissociation

193 be greater or less than the leakage rate of gas.

194 neous chemical kinetics with the reaction of gas phase O(3) and aqueous maleic acid droplets.

195 ut in the absence of any installed source of gas.

196 rocesses and may pave the way for the use of gas-phase ion chemistry for the generation of complex mo

197 level, thus in stark contrast to the case of gases and crystals.

198 le system to conduct real-time monitoring of gases generated by decomposing food.

199 mposition-dependent interactions between oil-gas phase transfer; aqueous dissolution; and densities a

200 this study, HPLC/MS(2) experiments based on gas-phase ion-molecule reactions of protonated model com

201 orption spectroscopy (Cu L-edge), and online gas chromatography measurements.

202 Biomass burning (BB) emits organic gases that, with chemical aging, can form secondary orga

203 ncy and lower CO(2) emissions, or the output gases may be used for other value-added processes such a

204 In 940 mother-offspring pairs, we performed gas chromatography-mass spectrometry and identified 134

205 ountry field trials with liquefied petroleum gas (LPG) stoves, likely the cleanest scalable intervent

206 twork (HAPIN) trial is a liquified petroleum gas (LPG) fuel/stove randomized intervention trial enrol

207 ding of the first steps of the photochemical gas-to-particle conversion mechanism.

208 stive seasonal assessment of photosynthesis (gas exchange, limitations to partitioning, photochemistr

209 ng to a more mechanistic prediction of plant gas exchange is challenging because of the diversity of

210 nment for otherwise non-adsorbing, non-polar gas molecules.

211 Methane (CH(4)), a potent gas with a global warming potential 86-125x that of carb

212 of pneumatosis intestinalis, and potentially gas gangrene is becoming more common and was utilized ef

213 C(18:0)) fatty acids purified by preparative gas chromatography(5-8).

214 a files generated by an atmospheric pressure gas chromatography-quadrupole time-of-flight mass spectr

215 ty haemoglobin had no worsening of pulmonary gas exchange during hypoxic exercise but had greater lac

216 ing regressors for predicting the soil radon gas concentration (SRGC) and anomalies in radon or any o

217 ating module, N(2)O was used as the reaction gas in the collision reaction cell of the ICP-MS/MS.

218 graphy (tc-SPL) with a flow-through reactive gas cell to achieve nanoscale control of defects in mono

219 extensive postprocessing, e.g. via reactive gas plasmas, organic solvents, and photolithography.

220 and supply chain difficulties of refrigerant gas; equipment failure; and treatment duration >10 min),

221 pores on the surface of plants that regulate gas exchange.

222 and the drive toward realizing reproducible gas-phase measurements, ion mobility experiments are com

223 (OSAS), may cause compromise of respiratory gas exchange during sleep, related to transient upper ai

224 previously reported cases of retroperitoneal gas gangrene.

225 in the member galaxies and a hot, metal-rich gas composing the intracluster medium.

226 While securing gas supply is a top priority for the Chinese government,

227 m wetlands and cattle, as well as from shale gas and shale oil developments.

228 egions that account for >97% of global shale gas production to constrain the contribution of shale ga

229 rtunity for upgrading light alkanes in shale gas by reacting with CO(2) to produce aldehydes and alco

230 HFFF from two unconventional Marcellus shale gas wells were characterized and mixed in batch reactors

231 ction to constrain the contribution of shale gas emissions to observed atmospheric increases in the g

232 of delta(13)C(CH4) from >1600 produced shale gas samples from regions that account for >97% of global

233 city of HPMTF is comparable to other soluble gas phase compounds (e.g., HCOOH and HNO(3)), resulting

234 ical challenge for determining vent-specific gas emissions.

235 vity coefficients, we calculate steady-state gas phase concentrations for plasticizers in equilibrium

236 cative of the expanse and magnitude of stray gas migration leaks.

237 The generation of synthesis gas (hydrogen and carbon monoxide mixture) from two glob

238 Here, we demonstrate that gas-phase peptide separation instead of LC enables fast

239 Results show that gas is transported to the surface of the system via vary

240 te formation, existing theories suggest that gas migration occurs via capillary invasion and/or initi

241 However, there is very strong evidence that gases detected at the surface during a period of low atm

242 The gas-liquid mass transfer coefficient is a key parameter

243 between the anterior inferior retina and the gas bubble.

244 ssuming equilibrium partitioning between the gas and particle phases has been shown to overestimate t

245 positioning gives better contact between the gas bubble and the inferior and anterior retina than pro

246 secondary organic aerosol (SOA) in both the gas and aqueous phases.

247 ort rate of contaminants and oxygen from the gas phase to the liquid phase, where pollutant biodegrad

248 he reaction of the dopant with O(2) from the gas phase.

249 tive membrane protein-lipid complexes in the gas phase and provide a straightforward model to explain

250 h a fixed-charge group were generated in the gas phase and structurally characterized by tandem mass

251 ein complexes retain native structure in the gas phase is highly dependent on experimental conditions

252 hallenging to preserve such oligomers in the gas phase where mass-selected structural studies using i

253 that organic UV-filters exist mainly in the gas phase with some exceptions, for instance, octocrylen

254 hat has only been observed indirectly in the gas phase, and because of its high reactivity has eluded

255 x 10(-6) s(-1), about twice the value in the gas phase.

256 usly studied only computationally and in the gas phase.

257 the structure of neutral biomolecules in the gas phase.

258 atically determined from the measured in the gas-phase fingerprints of the complexes.

259 ing biologically relevant complexes into the gas phase as multiply charged ions suitable for mass spe

260 to environmental stresses and modulating the gas exchange necessary for photosynthesis.

261 ng (ML) methods for the determination of the gas adsorption capacities of nanomaterials, such as meta

262 The erosion and wear behavior of the gas-solid mixture in the flow passage pipeline were stud

263 nced CIU capabilities enable us to study the gas phase stability of the GroEL 7-mer and 14-mer comple

264 all CVD system is capable of suppressing the gas-phase reaction, and achieves the superclean growth o

265 latile compounds from liquid matrices to the gas phase for analysis.

266 retina than prone positioning even when the gas fill is only 70% of the vitreous cavity.

267 When the gas slug bursts, liquid is drawn up in its wake, which e

268 Constant therapeutic gas phase nitric oxide (NO) delivery is achieved from S-

269 It is imperative that these gases are mitigated in an environmentally sustainable ma

270 , carbon dioxide, and nitric oxide-the three-gas respiratory cycle-that insures adequate oxygen and n

271 ouble-shot microfurnace pyrolysis coupled to gas chromatography mass spectrometry.

272 t untapped potential of native MS coupled to gas-phase ion chemistry as a means of facilitating ratio

273 003) and was associated with a smaller total gas volume (P = 0.01).

274 At one of the urban sites, the total (gas and particulate) concentrations of Sigma(10)OPAHs we

275 voids the use of explosive reagents or toxic gases, such as CO, as the C1 synthon.

276 CH(3)SCH(3)), a biogenically produced trace gas emitted from the ocean, accounts for a large fractio

277 Other halogenated trace gases were also measured, and there were positive inters

278 ly thermodynamically driven-a mixture of two gases will tend to mix until they reach equilibrium-biol

279 Here, we used gas chromatography and mass spectrometry to determine th

280 croextraction (SPME) and were analyzed using gas chromatography-mass spectrometry (GC-MS).

281 Here, we utilize gas-phase electrophoretic macromolecule analysis to show

282 A total of 18 vacuum gas oils have been analyzed by Fourier transform ion cyc

283 mobility diameter (EMD) can be achieved via gas-phase electrophoresis.

284 fragmentation, its causes were examined via gas-phase ion-molecule reactions in vacuum in a linear q

285 largest stratospheric injection of volcanic gases in the Common Era.

286 on monoxide mixture) from two global warming gases of carbon dioxide and methane via dry reforming is

287 at NH(3) formation correlates with the water gas shift (WGS) activity of the material and detect the

288 u-O-Zr sites only catalyze the reverse water-gas shift reaction.

289 ace can have environmental implications when gas components (e.g., methane, longer-chained hydrocarbo

290 le to other electrocatalytic reactions where gas consumption is involved.

291 We determined serum-PC fatty acids with gas chromatography.

292 h occurs in a common-flow configuration with gas-permeable walls, but in the absence of any installed

293 ionally, delta(13) C was not correlated with gas-exchange estimates of WUE(i) under short- and long-t

294 nced photoacoustic spectroscopy coupled with gas chromatography is used to quantitatively analyze a m

295 e obtained in 3 patients undergoing PPV with gas-fluid exchange (SF(6) or C(3)F(8)).

296 ovide an important surface for reaction with gas-phase pollutants.

297 ouples shotgun tandem mass spectrometry with gas-phase ion chemistry to achieve both differentiation

298 e coordination of leaf hydraulic traits with gas exchange across closely-related species adapted to v

299 ptional responses in relation to real-world, gas-phase air mixtures.

300 ct single Ba(2+) ions in high-pressure xenon gas detectors for barium-tagging experiments.