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نتایج جستجو برای Energy ratios

تعداد نتایج: 454041  
2014
Shih-Huang Lee, Chia-Yan Wu, Sheng-Kai Yang, Yuan-Pern Lee,

Articles you may be interested in Photodissociation dynamics of vinyl fluoride (C H 2 C H F) at 157 and 193 nm : Distributions of kinetic energy and branching ratios Evidence of C H 2 O (a A 2 3) and C 2 H 4 (a B 1 u 3) produced from photodissociation of 1,3-trimethylene oxide at 193 nm A 193 nm laser photofragmentation time-of-flight mass spectrometric study of chloroiodomethane Following phot...

2010
C W King,

In this letter I compare two measures of energy quality, energy return on energy invested (EROI) and energy intensity ratio (EIR) for the fossil fuel consumption and production of the United States. All other characteristics being equal, a fuel or energy system with a higher EROI or EIR is of better quality because more energy is provided to society. I define and calculate the EIR for oil, natu...

2011
Brantley Liddle,

This paper uses the econometrics of endogenous structural breaks to examine changes in energy intensity for OECD countries over 1960-2009. Nearly all OECD countries currently have significant negatively trending energy-GDP ratios; but for several countries those negative trends are recent, and two countries have recent significant positive trends. For several countries, energy intensity had a s...

2005
Donald V. Helmberger,

We have examined broadband regional waveforms of recent (since 1988) Nevada Test Site (NTS) underground explosions and earthquakes throughout the southwestern United States and Baja, Mexico, recorded by TERRAscope and other IRIS stations in order to characterize seismic sources for the purposes of event identification. As expected, earthquakes tended to be richer in long-period surface-wave and...

Journal: :Current biology : CB 2017
Michael Jennions, Tamás Székely, Steven R Beissinger, Peter M Kappeler,

Jennions et al. introduce the different kinds of sex ratio and their biology.

2001

In human genetics and genetic epidemiology, risk ratios can assume a number of different forms, including risk ratios for relatives, for candidate genes, and for genetic markers. The goal of many genetic studies is to quantify the risk of disease occurrence associated with particular genetic factors. The strength of this association can depend on interactions between environmental and genetic f...

Journal: :The Journal of Cell Biology 1981
I Z Nagy, G Lustyik, V Z Nagy, B Zarándi, C Bertoni-Freddari,

Intranuclear sodium, potassium, and chloride contents were measured by energy-dispersive x-ray microanalysis in freeze-fractured, freeze-dried, bulk-tumor samples taken from 10 patients suffering from invasive urogenital cancers. Human biopsies were carried out during the first diagnostic interventions before any cytostatic treatment had been applied. Pathohistological diagnosis established the...

Journal: :The Journal of chemical physics 2005
Shih-Huang Lee, Chia-Yan Wu, Sheng-Kai Yang, Yuan-Pern Lee,

Following photodissociation of formyl fluoride (HFCO) at 193 nm, we detected products with fragmentation translational spectroscopy utilizing a tunable vacuum ultraviolet beam from a synchrotron for ionization. Among three primary dissociation channels observed in this work, the F-elimination channel HFCO-->HCO+F dominates, with a branching ratio approximately 0.66 and an average release of kin...

2005
Fredrik Brännström, Lars K. Rasmussen, Alex J. Grant,

Extrinsic information transfer (EXIT) charts have been used extensively for designing concatenated coding schemes with iterative decoding. The area between the two transfer curves has been shown to approximate the gap to channel capacity. A curve-fitting procedure on EXIT charts was previously suggested for designing low density parity check codes. In this paper, we develop a similar approach f...