نتایج جستجو برای: solid carbon dioxide

تعداد نتایج: 492245  

Journal: :Science 1999
Brewer Friederich Peltzer Orr

Field experiments were conducted to test ideas for fossil fuel carbon dioxide ocean disposal as a solid hydrate at depths ranging from 349 to 3627 meters and from 8 degrees to 1.6 degrees C. Hydrate formed instantly from the gas phase at 349 meters but then decomposed rapidly in ambient seawater. At 3627 meters, the seawater-carbon dioxide interface rose rapidly because of massive hydrate forma...

Journal: :Journal of medical entomology 2001
M W Murphy R F Dunton M J Perich W A Rowley

Anopheles gambiae s.l. and Anopheles funestus Giles are the primary vectors of malaria in East Africa. Identification of host-location olfactory cues may increase trap sensitivity for vector control and surveillance programs. Solid-state army miniature light traps were operated near sleeping humans in huts at night without lights and augmented with the potential attractants: L-lactic acid, Limb...

Journal: :Science 2003
Shane Byrne Andrew P Ingersoll

In their pioneering work, Leighton and Murray argued that the Mars atmosphere, which at present is 95% carbon dioxide, is controlled by vapor equilibrium with a much larger polar reservoir of solid carbon dioxide. Here we argue that the polar reservoir is small and cannot function as a long-term buffer to the more massive atmosphere. Our work is based on modeling of the circular depressions com...

2004
M. D. Gordillo M. A. Blanco C. Pereyra E. J. Martínez

The design and development of processes involving supercritical fluids depend on how easy the phase equilibrium can be accurately modelled and predicted. In the work described herein, the supercritical fluid-solid equilibrium has been considered. Modelling the fluid-solid equilibrium is associated with a number of drawbacks, even when it is possible to obtain the experimental solubility data fo...

2014
Huang Liu Bei Liu Li-Chiang Lin Guangjin Chen Yuqing Wu Jin Wang Xueteng Gao Yining Lv Yong Pan Xiaoxin Zhang Xianren Zhang Lanying Yang Changyu Sun Berend Smit Wenchuan Wang

Removal of carbon dioxide is an essential step in many energy-related processes. Here we report a novel slurry concept that combines specific advantages of metal-organic frameworks, ion liquids, amines and membranes by suspending zeolitic imidazolate framework-8 in glycol-2-methylimidazole solution. We show that this approach may give a more efficient technology to capture carbon dioxide compar...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
Jian Sun Dennis D Klug Roman Martonák Javier Antonio Montoya Mal-Soon Lee Sandro Scandolo Erio Tosatti

Understanding the structural transformations of solid CO(2) from a molecular solid characterized by weak intermolecular bonding to a 3-dimensional network solid at high pressure has challenged researchers for the past decade. We employ the recently developed metadynamics method combined with ab initio calculations to provide fundamental insight into recent experimental reports on carbon dioxide...

2010
Alexander Klein Hanwei Zhang Nickolas J. Themelis

This paper assesses the technical and economic feasibility of a novel idea: Reducing the emission of carbon dioxide, the greenhouse gas contributing to global warming, by combusting solid wastes with industrial oxygen mixed with recirculated flue gas. The process gas, consisting mosdy of carbon dioxide, would be compressed and used in Enhanced Oil Recovery (EOR) projects. By using municipal and...

Journal: :Laser physics 2000
F K Tittel D G Lancaster D Richter

The development of compact spectroscopic gas sensors and their applications to environmental sensing will be described. These sensors employ mid-infrared difference-frequency generation (DFG) in periodically poled lithium niobate (PPLN) crystals pumped by two single-frequency solid state lasers such as diode lasers, diode-pumped solid state, and fiber lasers. Ultrasensitive, highly selective, a...

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