Sentences with phrase «by slow heating»

They compared the production, combustion and gas emissions of biochar, which is produced by slow heating of the biomass at a temperature of 450 °C (842 °F) in an oxygen - free furnace with hydrochar.

Not exact matches

In January the International Monetary Fund said China's economic growth would top 6.6 percent in 2018, but it could now drop by as much as 0.5 percent if these tariffs are imposed — and it could slow even further if a global trade war truly heats up.
This means that computers could have the benefits of data delivered by light — high speeds, no heat caused by electronic resistance, and no interference from electromagnetic radiation — but would also be able to slow that data down enough so that computers chips could do something useful with it.
The summer's unusual heat and abundance of hungry insects had promised an iffy tomato season anyway, but, needless to say, by the end of September, it was clear I would miss out on my yearly homegrown tomato activities: no weekends of steamy kitchen windows with boiling pots of canned sauce featuring my prized Cherokee Purples; no homemade, slow - simmered San Marzano tomato paste; no sheet pans lining the counters with roasted black cherry tomatoes (the best tomato flavor on this earth, ever).
In a pot place a part of the wild berries and add the orange's juice, the sugar and the corn flour, cook slow heat and stirring with a wood spoon, cook by 5 minutes or until is thick, add the other part of berries and cut the fire.Let chill and reserve.
I started these with a homemade sauce that came from combining some scratch tomato paste I had from leftover tomatoes this summer; adding a small jar of slow roasted tomatoes I also had canned in the fall and infusing it with more flavour by adding fresh garlic, salt, pepper and some fresh oregano I have growing under a lamp for the winter, mixing and heating it all together in a pan.
Return to heat and slow boil until reduced by half.
By the time the loaves bake the next day, the oven will be on a slow descent from its peak temperature of 800 degrees, and the heat trapped inside the bricks will shape the shaggy lumps into crackly, crusted loaves.
Hi Fitri, that is strange, I make this cake almost once a week and I have never had this happen, what you could do is lower the heat by 25 degrees so that it cooks slower and longer.
It was a slow start to this year's BUCS Nationals for us, with the only real performance of note was the men's 4 x 100m relay swimming team qualifying for Saturday's finals by coming third in their heat.
Pasteurization slows the growth of bacteria by heating the milk to a certain temperature and then cooling it.
Slower juicing preserves nutrients by reducing heat.
«It gives us some insight into the connection between the slow circulation of near - solid rock in Earth's mantle caused by convection currents carrying heat upwards from the planet's interior, and observed active plate tectonics at the surface.
Perhaps what's different about them, McDonald says, is that the cooling of gas flowing into the center is slowed down by the heating effect of a black hole spewing out material from the center of the cluster.
Closer examinations of the lander's transmitted telemetry then revealed that the ejection of the parachute and a heat shield occurred earlier than expected, followed by a too - brief firing of rocket thrusters meant to slow the spacecraft's descent.
In the mantle - plume theory, Anderson explains, the heat that is transferred upward via jets is balanced by the slower downward motion of cooled, broad, uniform chunks of mantle.
Enriched uranium oxide is formed into rods and water is used both as a coolant, flowing through the reactor core to transfer heat away, and as a moderator, slowing down neutrons released by fission so that they promote further nuclear reactions.
The tiny slowing of the two Pioneer spacecraft, known as the Pioneer anomaly and considered by some to challenge general relativity, is probably due to the heat produced by electronics and radioactive decay.
On the other hand, if the ice shell is sufficiently thick, the less intense interior heat can be transferred to warmer ice at the bottom of the shell, with additional heat generated by tidal flexing of the warmer ice which can slowly rise and flow as do glaciers do on Earth; this slow but steady motion may also disrupt the extremely cold, brittle ice at the surface to produce the chaos regions.
slow movement of Earth's solid mantle caused by convection currents transferring heat from the interior of the Earth to the surface.
The Earth's lithosphere is a patchwork of plates in slow but constant motion caused by the release to space of the heat in the Earth's mantle and core.
Environmentally, the fires are a double whammy: They destroy trees that help to slow global warming by absorbing heat - trapping carbon dioxide as they grow.
Protein synthesis, especially the copper - binding protein ceruloplasmin, slows down and liver detoxification falters.84 This can lead to, in Chinese terms, liver heat, or in more extreme form, liver fire, with symptoms of dizziness, headache and red eyes.85 Recall the headaches that marked my first problems, which were «cooled» by alkaline foods and cleansing herbs.
Then slow and bit by bit I could feel the heat and tried to stay away from my so predicted friends in train and neighborhood.
In simple terms, this means that thaw from below (ambient heat held by the earth) can be very slow to reach the base of your carpet.
The pungent pad perfume evaporates as the crackling caused by slow dissipation of heat dies away, and resistance returns to the no - longer - spongy pedal.
Its heated and cooled seats, crisp Bowers & Wilkins stereo, and easily configurable, if somewhat slow, navigation interface helped the miles fly by — which they often did at criminal speeds.
Also included are a heated armrest and reclining power - operated screens and an adaptive cruise control feature to slow it down around curves, by use of map data.
The recent newspaper account in the Allentown, Pennsylvania Morning Call said that temperatures over the summer in a local Amazon facility reached 120 degrees Fahrenheit (49 degrees Celsius), and that workers who were slowed by the heat felt penalized by their bosses.
Guemas et al. (Nature Climate Change 2013) shows that the slower warming of the last ten years can not be explained by a change in the radiative balance of our Earth, but rather by a change in the heat storage of the oceans, and that this can be at least partially reproduced by climate models, if one accounts for the natural fluctuations associated with El Niño in the initialization of the models.
If the deep return flow slows, then the mass transported by the Gulf Stream decreases, and the associated heat transport decreases.
The recent slower warming is mainly explained by the fact that in recent years the La Niña state in the tropical Pacific prevailed, in which the eastern Pacific is cold and the ocean stores more heat (2).
There's been much discussion recently of quick, cheap steps, with many benefits, that could slow warming driven by the atmospheric buildup of heat - trapping greenhouse gases.
CO2 (and some other gases) in the atmosphere are however more opaque to LWIR; they absorb that a chunk of that outgoing radiation and re-radiate it in all directions — so that a fraction less than half is re-radiated downwards; which has the effect of slowing the transfer of heat (by radiation) out of the atmosphere.
Ideas that commonly surface include perturbations to the earth's orbit by other planets, disruptions of ocean currents, the rise and fall of greenhouse gases, heat reflection by snow, continental drift, comet impacts, Genesis floods, volcanoes, and slow changes in the irradiance of the sun.
Theory and modelling suggest that if the sinking of the salty surface waters in the North Atlantic slowed down or stopped, there would be a reduction in the heat transport by the ocean, which would have implications for the climate of northern Europe.
Thus I think your statement that «if the deep return flow slows, then the mass transported by the Gulf Stream decreases, and the associated heat transport decreases» is simply false.
(57h) There is large horizontal - scale overturning (LHSO) that is driven by a combination of differential horizontal net radiant heating and differential vertical net radiant heating; this overturning may be slowed by smaller lapse rates but it can still occur and actually reduce the lapse rate below adiabatic (moist or dry) lapse rates.
If the surface temperature is slow to catch up to that imbalance then the energy imbalance remains large, and we can have sufficient net heating to cause much faster changes in the ice sheets than from the comparatively smaller imbalances caused by the changes in Earth's orbit associated with the glacial periods in the past.
Slowing such overturning by reducing the horizontal differential heating could tend to allow heat to build up at lower levels until the lapse rate is more favorable to localized vertical overturning (LVO)(The two forms of overturning are not always completely distinct or separate; for example, the Hadley cell, Walker, and monsoon circulations, as well as extratropical storm track activity (developing from baroclinic instability (Rossby wave phenomena)-RRB- are driven and organized in part by horizontal differential heating, but in the ascending portions of these circulations, cumulus - type convection can occur).
For example: 1) plants giving off net CO2 in hot conditions (r / t aborbing)-- see: http://www.climateark.org/articles/reader.asp?linkid=46488 2) plants dying out due to heat & drought & wild fires enhanced by GW (reducing or cutting short their uptake of CO2 & releasing CO2 in the process) 3) ocean methane clathrates melting, giving off methane 4) permafrost melting & giving off methane & CO2 5) ice & snow melting, uncovering dark surfaces that absorb more heat 6) the warming slowing the thermohaline ocean conveyor & its up - churning of nutrients — reducing marine plant life & that carbon sink.
The first rate seems to be far slower because there are no winds in the stratosphere so that equilibrium can only be reached by diffusion of heat which is really slow; on the other hand we are pumpimg around 1.5 ppm of CO2 into the troposphere every year, over a base value of around 380 ppm.
The LWR warms the ocean's surface skin, and slows the escape of the solar radiation absorbed by the ocean bulk, by reducing the convection of heat to the ocean surface.
In this case, the transfer of heat to the air by conduction is slow.
Just as there is no «33 °C warming by greenhouse gases from the minus 18 °C it would be without them» — when the real blanket which slows heat loss is reinstated — the heavy voluminous fluid ocean atmosphere of real gas, mainly nitrogen and oxygen, and when the Water Cycle is reinstated.
You mention the silvering of a coffee flask preventing heat loss by radiation, but the key preventer of heat loss is the vacuum which slows cooling by conduction and convection.
Your second question: the climate would drop fairly rapidly by 0.45 C but the remaining 0.45 C fall would take about 30 years as the oceans would be slow to give up their heat as they were to acquire it.
«the Stratosphere can not accumulate any heat; to slow down cooling of the planet tomorrow — because: by tomorrow, the planet will be million miles away from that spot, spinning around the sun.»
The heat caused by infrared radiation is absorbed by greenhouse gases such as water vapor, carbon dioxide, ozone and methane, which slows its escape from the atmosphere.
The IPCC projections of sea level rise are based largely on the slow, steady and inexorable thermal expansion of the oceans (as water heats, its volume increases) with some additional contributions from the melting of mountain glaciers (almost all of which are expected to be gone by mid century).
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