نتایج جستجو برای: carbon dioxide lasers

تعداد نتایج: 335621  

1997

Seven C3 crop and three C3 weed species were grown from seed at 360 and at 700 cm3 m–3 carbon dioxide concentrations in a controlled environment chamber to compare dry mass, relative growth rate (RGR), net assimilation rate (NAR), leaf area ratio (LAR) and photosynthetic acclimation at ambient and elevated carbon dioxide. The dry mass at the final harvest at elevated carbon dioxide relative to ...

Journal: :Archives of disease in childhood 1986
G Cheriyan P Helms F Paky D Marsden M C Chiu

Transcutaneous and arterial carbon dioxide were measured simultaneously in 57 children (age range 10 days to 14.3 years) undergoing intensive care. All were haemodynamically stable at the time of study. Mean calibration time with 5 and 10% carbon dioxide was 43 (range 38-58) minutes and mean arterialisation time was 10.5 (range 3-30) minutes. Duplicate hourly arterial samples over a four hour p...

2005
David G Tingay Michael J Stewart Colin J Morley

Abbreviations: CO2, Carbon dioxide; PaCO2, Arterial partial pressure of carbon dioxide; PtcCO2, Transcutaneous partial pressure of carbon dioxide; PetCO2, End-tidal partial pressure of carbon dioxide; NETS, Newborn Emergency Transport Service (Victoria); NICU, Neonatal Intensive Care Unit; PaO2/PAO2 ratio, alveolar-arterial ratio. ADC-FNN Online First, published on April 29, 2005 as 10.1136/adc...

Journal: :Biotechnology and bioengineering 2017
Zizhuo Xing Amanda M Lewis Michael C Borys Zheng Jian Li

Control of carbon dioxide within the optimum range is important in mammalian bioprocesses at the manufacturing scale in order to ensure robust cell growth, high protein yields, and consistent quality attributes. The majority of bioprocess development work is done in laboratory bioreactors, in which carbon dioxide levels are more easily controlled. Some challenges in carbon dioxide control can p...

2015
Peter Geiser

Tunable laser absorption spectroscopy (TLAS) has been well accepted as a preferred measurement technique for many industrial applications in recent years, especially for in situ applications. Previously, mainly near-infrared lasers have been used in TLAS sensors. The advent of compact mid-infrared light sources, like quantum cascade lasers and interband cascade lasers, has made it possible to d...

2016
Samuel Asumadu-Sarkodie Phebe Asantewaa Owusu

In this study, the causal-effect between carbon dioxide emissions and forestry production and trade was investigated in Ghana by employing a data spanning from 1961 to 2014 by using the VECM and ARDL model. Evidence of the long-run equilibrium relationship in the VECM shows that, a 1% increase in veneer sheet production reduces carbon dioxide emissions by 1.47% in the long-run. There was eviden...

2012
Hyung-Chul Lee Donguk Kim Wonsik Ahn Jiyeon Sim Yehoon Chung

BACKGROUND The chemical reaction of carbon dioxide absorbent and sevoflurane is known to produce compound A. However, carbon dioxide absorbents are not controlled by the Food and Drug Administration, but are treated as industrial products in some nations. Moreover, carbon dioxide absorbents differ in their capacities to produce compound A, because their chemical compositions differ. In this stu...

Journal: :iranian journal of oil & gas science and technology 2013
tahereh asadi mohammadreza ehsani

copper trimesate (cu-btc) mof has been pointed out as a promising adsorbent for separating carbon dioxide from methane. however, mof’s need to be shaped prior to their use in packed bed adsorbers in order to reduce pressure drop; on the other hand, the production of mechanically resistant shaped bodies reduces their adsorption performance. in this work, cu-btc tablets provided by basf are evalu...

Journal: :Antimicrobial agents and chemotherapy 1999
M M Johnson S L Hill L J Piddock

The in vitro activities of erythromycin, azithromycin, and clarithromycin against 178 clinical isolates from the lower respiratory tract of patients with chronic obstructive pulmonary disease were determined by an agar dilution method. The plates were incubated in air alone or in 5% carbon dioxide. The MICs measured in air alone were lower for most isolates than those measured in 5% carbon diox...

2016
Samuel Asumadu-Sarkodie Phebe Asantewaa Owusu

In this study, an attempt was made to investigate the Kenya case of multivariate causality of carbon dioxide emissions by employing a time series data spanning from 1961-2011 using the ARDL method of cointegration analysis. The long-run elasticities show that, a 1% increase in financial development increases carbon dioxide emissions by 0.28%, a 1% increase in GDP per capita increases carbon dio...

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