نتایج جستجو برای: methanol crossover

تعداد نتایج: 61028  

2012
Arfat Anis S. M. Al-Zahrani F. A. Abd El Aleem

Direct alcohol fuel cells have been attracting enormous research interest as power sources for vehicles and portable electronic devices because alcohols are readily available, their storage and transport can be easily handled with the existing fuel infrastructure, and they commonly have high mass-specific and volumetric energy densities. Methanol is the most studied fuel for direct alcohol fuel...

2018
Hamideh Ghorbani Alireza Nezami Behjat Sheikholeslami Arya Hedjazi Mahnaz Ahmadimanesh

Background Formic acid (formate) is the main reason for toxicity and death through methanol poisoning. The simultaneous determination of methanol, ethanol, and formate in the body can help to discover the cause of death and is useful in the diagnosis of acute methanol poisoning. The measurement of formate is not yet available in Iran. With regard to the increasing rate of methanol poisoning and...

2014
Tatiana V. Komarova Igor V. Petrunia Anastasia V. Shindyapina Denis N. Silachev Ekaterina V. Sheshukova Gleb I. Kiryanov Yuri L. Dorokhov

We recently showed that methanol emitted by wounded plants might function as a signaling molecule for plant-to-plant and plant-to-animal communications. In mammals, methanol is considered a poison because the enzyme alcohol dehydrogenase (ADH) converts methanol into toxic formaldehyde. However, the detection of methanol in the blood and exhaled air of healthy volunteers suggests that methanol m...

2017
Mareen Morawe Henrike Hoeke Dirk K. Wissenbach Guillaume Lentendu Tesfaye Wubet Eileen Kröber Steffen Kolb

Methanol is an abundant atmospheric volatile organic compound that is released from both living and decaying plant material. In forest and other aerated soils, methanol can be consumed by methanol-utilizing microorganisms that constitute a known terrestrial sink. However, the environmental factors that drive the biodiversity of such methanol-utilizers have been hardly resolved. Soil-derived iso...

Journal: :Proceedings of the National Academy of Sciences 2007

1996
S. Liechti

We present interferometric observations with∼3.5′′ resolution of the 2k → 1k methanol lines towards the methanol masers in the DR21/DR21(OH) complex. These transitions are not masing and hence our measurements can be used to place limits on the methanol mass associated with the maser spots. We do not find in general good correlation between the peaks of “non-maser” methanol emission and the pos...

Journal: :Neurology India 2009
Sameer Vyas Neeraj Kaur Navneet Sharma Paramjeet Singh Niranjan Khandelwal

A 22-year-old male presented with acute onset vomiting, diarrhea, abdominal pain and altered sensorium. He had a history of acute alcohol intake (locally made with solvent) a day prior to the presentation. Biochemical investigations revealed severe metabolic acidosis. Diagnosis of methanol poisoning was made on the basis of history and biochemical abnormality. Magnetic resonance imaging (MRI) d...

1989
Rich Caruana Larry J. Eshelman J. David Schaffer

The traditional crossover operator used in genetic search exhibits a position-dependent bias called the dcfining-length bias. We show how this bias results in hidden biases that are difficult to anticipate and compensate for. We introduce a new crossover operator, shuffle crossover, that eliminates the position dependent bias of the traditional crossover operator by shuffling the representation...

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