Sentences with phrase «declining curve of»
You would need to know the expected decline curves of their wells.
https://longtermvalue.wordpress.com/ Not exact matches
Amidst this backdrop, the 10 - year Treasury yield declined while short term rates increased, causing further flattening of the yield curve.
With the exception of the very front end of the yield curve, Canadian government bond yields declined, as did spreads on investment grade corporate bonds.
If you follow global financial trends, you would have noted the continual (and recently accelerating) decline in the slope of the US yield curve.
At the long end of the yield curve, sentiment began to improve noticeably a year ago, reflecting the decline in the Budget deficit and the improvement in inflation.
I guess without «drugs» the age curve is more of a cliff than a gradual decline.
After 1931 the Tory Party's share of the vote declined inexorably in what became virtually a mirror image of the curve of its ascent.
The rapid rise and subsequent decline of this isotope is known as the bomb curve.
At the far end of the curve are «elite controllers,» people whose immune system suppresses HIV below 50 copies per milliliter; their CD4 cells have not declined, even a decade or more after initial infection.
Till now, climate modellers» forecasts of future warming have resembled the famous bell curve, with the most likely result of doubling CO2 being a temperature increase of about 3 °C, and with declining probabilities on either side for a narrow range of higher and lower temperature rises (see Graph).
They describe their new model of the decline curve in the paper «Gas production in the Barnett Shale obeys a simple scaling theory,» published this week in the Proceedings of the National Academy of Sciences.
Using historical data from horizontal wells in the Barnett Shale formation in North Texas, Tad Patzek, professor and chair in the Department of Petroleum and Geosystems Engineering in the Cockrell School of Engineering; Michael Marder, professor of physics in the College of Natural Sciences; and Frank Male, a graduate student in physics, used a simple physics theory to model the rate at which production from the wells declines over time, known as the «decline curve.»
The strength of the pull exerted by a given object declines in proportion to the square of the distance from it, Newton told us, while Einstein explained gravity as the result of massive objects curving space - time.
Whatever the curve downward, whether you decline quicker, if you're bright for analytic ability — and the same is true of processing speed; working memory is bright neutral, verbal bright bonus, processing speed and analytic bright tax.
«The occultation light curve shows a structured decline in intensity rather than a precipitous decline indicative of an atmosphere surrounding Pluto,» said Paul Delaney, a senior lecturer of physics and astronomy at York University in Toronto.
One of the advantages to salivary cortisol testing is the ability to obtain multiple samples in one day to be able to view a patient's cortisol curve, in which cortisol peaks approximately one hour after waking and declines throughout the day.
For example, a carbohydrate - rich meal in the evening was found to delay the circadian rhythm of core body temperature and reduce nocturnal melatonin secretion.30 This is relevant, since sleep propensity and quality are highest near the declining limb of the core body temperature curve when melatonin levels are increased.31, 32 Although body temperature and melatonin were not recorded in the current study, these effects would be consistent with an increase in SOL on night 5 and the association with nocturnal arousals observed here.
The forgetting curve demonstrates the decline of memory retention in time — how information is lost over a period when there is no attempt to retain it.
I come from the oil and gas business, and the decline of my spouses book pub'd only on Amazon showed a decline curve remarkably like those of «depletion drive» reservoirs.
It would have taken spectacular sales to drive Apple's shipments so far ahead of the curve that the introduction of a major - brand alternative to the iPad wouldn't impact Apple's market share no matter how many units Samsung shipped, so it's important not to read too much into the decline.
Fed Vice Chair Stanley Fischer suggested that inflation may be about to increase while affirming his belief that the Phillips Curve — the inverse relation between unemployment and inflation — is still is worth watching after six years of declining unemployment and flat to falling inflation.
Flat Yield Curve - This curve indicates the yields of bonds with different maturities are relatively constant, and is seen when interest rates are expected to decline moderately but offset by positive term preCurve - This curve indicates the yields of bonds with different maturities are relatively constant, and is seen when interest rates are expected to decline moderately but offset by positive term precurve indicates the yields of bonds with different maturities are relatively constant, and is seen when interest rates are expected to decline moderately but offset by positive term premium.
But at the same time, steep price declines have pushed yield ratios of municipals to Treasuries to the highest levels ever recorded at every point of the yield curve.
The reason why an inverted yield curve is predictive of economic weakness is that long - term bond investors will settle for lower yields if they start to believe the economy will slow or decline in the future.
We discuss lop sided matches, effects of the SR bell curve with a declining player base, smurfs, and community toxicity.
Strikingly, both curves show the post-1945 «dip», with the main difference residing in the deeper decline of the SST curve, and its more sudden drop.
The curve for live coral cover in the Caribbean from the 1970s to the present is a straight downhill trend, showing a net decline of between 50 percent and 75 percent of the coral.
3) Judith Curry says she provided very critical comments for the new paper and declined to be an author (the prime concern, and that of William Connolley, being that curve fitting alone is nowhere near sufficient for attribution).
I have not done a mathematical analysis of this curve, but it seems reasonable to point out that only the last two years suggest that the overall trend is anything but a straight line decline.
The actual sea level curves have been smoothed with an SSAtrend filter which has a full width of 30 years, but since the weights of the filter decline away from the central point I cited the half - width — this is like citing an effective width for a Gaussian weighting curve.
One merely calculates the least - squares linear - regression trend over successively longer periods to see whether the slope of the trend progressively increases (as it must if the curve is genuinely exponential) or whether, instead, it progressively declines towards linearity (as it actually does).
In the long run none of this matters if the goal is true sustainability because if you do sustainability and populaton peaks this century, the population emergency is averted and per capita consumption can rise on a curve fitted to the population decline.
Publication date: 1992-07-01 First published in: Journal of Petroleum Science and Engineering Authors: B.J. Ayeni, R. Pilat Abstract: The oil industry has used decline curve analysis with limited success in estimating crude oil reserves and in predicting future behavior of oil and gas wells.
The green curve in Figure 2 does not fall off because of any decline in actual temperature but because F3 is bending it down for the same reason it bends the orange curve in Figure 3 down.
In other words ignoring the non-linear GHG efficacy curve of CO2 and the rate of anthropogenic deposition is just another attempt to hide a couple of inconvenient declines.
As Bryce points out, shale natural gas wells deplete at a very fast rate: «The new shale gas wells... have steep decline curves, meaning that output from some wells may fall by 80 to 90 percent during the first year of production.»
Between this email (22 Sep 1999) and the next draft sent out (Nov 1999, Fig. 2.25 Expert Review) two things happened: (a) the email referring to a «trick» to «hide the decline» for the preparation of report by the World Meteorological Organization was sent (Jones 0942777075.txt, «trick» is apparently referring to a splicing technique used by the L.A. [Dr Mann] in which non-paleo data were merged to massage away a cooling dip at the last decades of the original Hockey Stick) and (b) the cooling portion of Briffa's curve had been truncated for the IPCC report (it is unclear as to who performed the truncation...)
Just every year gets tougher than the year before - but the negative compounding is at a rate of about 5 % pa based on conventional reserve decline curves.
Certainly the long term viability of natural gas will be a function of price as well as decline curves, and it certainly isn't a real resource at $ 2.31 / Mcf (today's price).
Rutt: I think the heart of the argument lies in the form of the decline curve, and how rapidly wells reach the point where they are unable to supply gas into a pipeline without a compressor.
Looking at the bottom of the AR4 map, the graph for the entire globe shows a declining and then basically flat blue curve for natural forcings.
But again, profitability of these gas plays will depend not just on decline curve analysis but on natural gas prices as well.
It's presumptuous of me, VTG, but your time might be better served wondering why a smaller percentage of CO2 emissions is staying in the atmosphere each year, and pondering the implications of that declining curve.
The suggestion that recent warming is anthropogenic due to divergence from a simple 60/20 year curve fit over a mere 100 years ignores prior divergence from both competing models of distantly past temperature, one being a hockey stick that shows a slow decline instead of incline prior 1850 and the other showing two similar «non-cyclical» spikes in the Roman and medieval periods.
«Conversely, higher system loads on weekdays mitigate the midday decline in net load and the impact of the duck curve.»
(http://blackjay.net/?p=335)(2) The «Bomb Test Curve» of declining 14C in the atmosphere indicates that CO2 has a half - time in the atmosphere of only 10 years, not the hundreds of years of the Bern Model used in numerical climate models.
Monckton — quoted by Bickmore «One merely calculates the least - squares linear - regression trend over successively longer periods to see whether the slope of the trend progressively increases (as it must if the curve is genuinely exponential) or whether, instead, it progressively declines towards linearity (as it actually does).»
If CO2 emissions was the prime driver of the observed increase these variations would be seen on the CO2 concentration curve especially the four year decline which occurred after 1958 where it should have been detected by the consistant meaurements from Mauna Loa Observatory.
Assuming everything else is constant (which I don't like, given the huge changes is energy use and mix), a decline in solar forcing of.1 to.15 should have dropped your non-GHG forcing curve by the same amount, n'est ce - pas?
The differences, which, in an exponential curve, would of course increase successively, in fact mostly decline successively: 11, 10, 8, 6, 3, 4, 4, -1, and 4 ppmv / century respectively.