Results 101 to 110 of about 592,816 (305)

Study of a zirconium getter for purification of xenon gas

open access: yes, 2010
Oxygen, nitrogen and methane purification efficiencies for a common zirconium getter are measured in 1050 Torr of xenon gas. Starting with impurity concentrations near 10^{-6} g/g, the outlet impurity level is found to be less than 120*10^{-12} g/g for ...
A. Dobi   +23 more
core   +1 more source

A Metal‐Free Carbon Monoxide Prodrug Suppresses Metastasis of Pancreatic and Breast Cancer

open access: yesAdvanced Science, EarlyView.
A metal‐free carbon monoxide (CO) prodrug, CO‐116, delivers controlled systemic CO without inhalation. CO suppresses the HRG1–heme axis, reducing intracellular heme availability. Attenuation of this pathway inhibits metastatic progression in pancreatic and triple‐negative breast cancer models.
Tiantian Zhang   +15 more
wiley   +1 more source

A discussion on CBM development strategies in China: A case study of PetroChina Coalbed Methane Co., Ltd.

open access: yesNatural Gas Industry B, 2019
In recent years, the growth rate of coalbed methane (CBM) industry in China has slowed down. In order to promote its development, it is in urgent need to do the researches focusing on enhancing domestic CBM industry.
Shengming Wen, Ke Zhou, Qian Lu
doaj   +1 more source

The 2MASS Wide-Field T Dwarf Search. IV Unting out T dwarfs with Methane Imaging

open access: yes, 2005
We present first results from a major program of methane filter photometry for low-mass stars and brown dwarfs. The definition of a new methane filter photometric system is described.
Adam J. Burgasser   +8 more
core   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

open access: yesAdvanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas   +6 more
wiley   +1 more source

Vadose zone air as a biogenic source of methane in Nerja Cave system (South of Spain) [PDF]

open access: yes, 2018
Subterranean air in karst cavities has often low methane contents in comparison to atmosphere and so karst systems have been considered a sink of atmospheric methane. Methane-oxidizing bacteria have been hypothesized as responsible for CH4 depletion in
Benavente, José   +8 more
core  

Quantum molecular dynamics simulations for the nonmetal-metal transition in shocked methane

open access: yes, 2011
We have performed quantum molecular-dynamics simulations for methane under shock compressions up to 80 GPa. We obtain good agreement with available experimental data for the principal Hugoniot, derived from the equation of state.
A. F. Ioffe   +6 more
core   +1 more source

Liquid Bismuth Catalyst Enables High‐CO‐Selectivity in CO2 Hydrogenation

open access: yesAdvanced Science, EarlyView.
This work introduces a dynamic liquid bismuth catalyst for efficient CO2‐to‐syngas conversion. Stabilized molten Bi nanodroplets on a defective VOx support enable a reversible Bi3+/Bi0 redox cycle at moderate temperatures. Mechanistic insights reveal that Ni‐Bi dual sites synergistically activate H2 and cleave CO2, leading to high CO selectivity ...
Xinxin Lu   +6 more
wiley   +1 more source

Using Methane to Support Renewables for Decarbonisation

open access: yesMethane
The cost of “carbon net zero by year 2050” for the UK will be high, and this target date can only be achieved if the project is undertaken in a progressive and timely manner; otherwise, costs will escalate. The base power source behind the UK approach to
Stephen A. Lloyd, William J. Atteridge
doaj   +1 more source

Exploring a Potentially Significant New(?) Mechanism for Methane Generation on Mars [PDF]

open access: yes
An unexplored mechanism for methane production on Mars is presented here. Meteor showers have been hypothesized [1] as an explanation for episodic martian methane events [2-7], as the timing of meteor showers consistently correlates with the episodic ...
Fries, M.
core   +1 more source

Home - About - Disclaimer - Privacy