Sentences with phrase «certain temperatures which»

The bulb turns on and off at certain temperatures which Diego can conveniently adjust through a temperature controller outside the incubation chamber.

Not exact matches

Heat and light, being modes of motion, «phosphorescence» and «incandescence» are phenomena to which consciousness has been likened by the production - theory: «As one sees a metallic rod, placed in a glowing furnace, gradually heat itself, and — as the undulations of the caloric grow more and more frequent — pass successively from the shades of bright red to dark red (sic), to white, and develope, as its temperature rises, heat and light, — so the living sensitive cells, in presence of the incitations that solicit them, exalt themselves progressively as to their most interior sensibility, enter into a phase of erethism, and at a certain number of vibrations, set free (dégagent) pain as a physiological expression of this same sensibility superheated to a red - white.»
In addition to being a common household ingredient in certain parts of India and Bangledesh, it has also been used as a homeopathic remedy for stomach pain, a way to beat the summer heat (when the bhut jolokia is eaten, the partaker will usually start to sweat quite a bit, which will ultimately lead to a decrease in body temperature).
Which is nice that you don't have to worry about everything being ready at a certain time and certain temperature.
And it's also low in polyunsaturated fats, which are the elements in oil that cause it to smoke when it gets to a certain temperature.
Goods that are being shipped long distances or food which must be kept above or below certain temperatures obviously require carefully - planned packaging.
Unlike a hot bath, a heating pad won't raise the core temperature of your body, which can increase the risk of certain birth defects and miscarriage.
Based on modeling results by the National Oceanic and Atmospheric Administration (NOAA), which predicted that Pacific Ocean temperatures would rise by 1 degree Celsius (2 degrees Fahrenheit) over the next 50 years, a Canadian and U.S. team of scientists examined the distributional changes of 28 species of fish including salmon, herring, certain species of sharks, anchovies, sardines and more northern fish like pollock.
While the foil rolls through the first tube, it heats up to a certain ideal temperature, at which point it is ready to roll through the second tube, where the scientists pump in a specified ratio of methane and hydrogen gas, which are deposited onto the heated foil to produce graphene.
For instance, copepods, which are tiny crustaceans, tend to gather and feed at certain levels of salinity and temperature.
That close relationship with an insulator is a characteristic shared by certain types of high - temperature superconductors, which function at significantly warmer temperatures than other superconductors, although they still require cooling.
Superconductors are materials through which electricity can flow without any resistance once they are cooled below a certain critical temperature.
Markovic, who was Mlack's advisor at Johns Hopkins at the time, suggested that, in order to recreate it without having to continually blow up devices, they could thermally anneal it, a process in which they put it into a furnace and heat it to a certain temperature.
His team built a series of experimental ponds, each of which is warmed by a certain temperature range over a certain period of time.
Already, the planet's average temperature has warmed by 0.7 degree C, which is «very likely» (greater than 90 percent certain) to be a result of the rising concentrations of greenhouse gases in the atmosphere, according to the U.N. Intergovernmental Panel on Climate Change.
Superconductivity is based on the fact that in certain materials electrons can pair up which — at a higher temperature — would otherwise repel each other.
No one yet knows the extent to which methane and NF3 will impact global temperatures, but NASA climate scientist Ralph Kahn says one thing is certain: «We know it's more than just CO2 that matters.»
The authors defined a heat event as three or more successive days in which the 24 - hour daily mean temperature rose above a certain historical average high for July and August — in Philadelphia's case, 27 degrees Celsius.
According to computer models, such a collision would have created searingly high temperatures that would have vaporized all the water, which is a big reason why scientists were so certain that the moon was dry.
But nothing is certain, as NOAA's Climate Prediction Center is expecting temperatures in the western states to heat up later this month, which could offset the cooler conditions in the East.
Low thyroid function can mean lower body temperatures, which can affect a growing embryo because it needs to be at a certain temperature in order to grow and develop.
Which foods must be kept at certain temperatures and why?
Many newer automatic transmissions have temperature - sensors in them that, on a stone - cold start, restrict normal shift to only the lower (or non-overdrive gears) until the engine coolant and transmission fluid reach a certain level which in many engines, is around...
Seat heating / cooling is available, as wells as a heated steering wheel which can be automatically set to activate at certain inside temperatures.
If you travel by air, some airlines require an acclimation certificate, which states that your cat can be exposed to certain temperatures while traveling.
This is especially true for certain reptiles, such as tortoises, which require high temperatures to remain healthy.
In fact, the paper has rather little data of any sort, but they do cite a certain number of observations which raise the interesting question of whether temperature rise can account for the melting.
My co-authors and I have just published an article in Nature Geoscience (advance online publication here; associated press release here) which seeks to explain certain enigmatic features of tree - ring reconstructions of Northern Hemisphere (NH) temperatures of the past millennium.
See e.g. this review paper (Schmidt et al, 2004), where the response of a climate model to estimated past changes in natural forcing due to solar irradiance variations and explosive volcanic eruptions, is shown to match the spatial pattern of reconstructed temperature changes during the «Little Ice Age» (which includes enhanced cooling in certain regions such as Europe).
The climate change in this period is generally believed to be associated with precessional changes in the distribution of solar radiation, which primarily affect land - sea temperature contrast, and give only a regional warming, plus an enhancement of certain monsoonal circulations.
You need the water because you raise pigs, which are very temperature sensitive; to keep them comfortable you need to throw a certain amount of water over them each day.
The first is the paper «Anthropogenic greenhouse forcing and strong water vapor feedback increase temperature in Europe» by Rolf Philipona et al. (GRL, 2005, subscription required for full text), which has attracted a certain amount of media attention.
2) Soil moisture: memory in soil moisture can last several weeks which can influence the atmosphere through changes in evaporation and surface energy budget and can affect the forecast of air temperature and precipitation in certain areas during certain times of the year on intraseasonal time scales;
One of those mechanisms is hurricanes, which reduce local temperatures when they exceed certain general levels depending on other local conditions.
A straight logical proposition: tree temperature measurements measure leaf temperatures which have been shown by measurements to be stable within a certain range and not correlated strongly with ambient temperature.
Trees endure in certain areas due to their ability to adapt to that specific environment, which includes temperature, cold - tolerance and a variety of other factors.
As others have noted, the IPCC Team has gone absolutely feral about Salby's research and the most recent paper by Dr Roy Spencer, at the University of Alabama (On the Misdiagnosis of Surface Temperature Feedbacks from Variations in Earth's Radiant Energy Balance), for one simple reason: both are based on empirical, undoctored satellite observations, which, depending on the measure required, now extend into the past by up to 32 years, i.e. long enough to begin evaluating real climate trends; whereas much of the Team's science in AR4 (2007) is based on primitive climate models generated from primitive and potentially unreliable land measurements and proxies, which have been «filtered» to achieve certain artificial realities (There are other more scathing descriptions of this process I won't use).
Because we didn't have a systematic global set of thermometer measurements before the 1880s, scientists look at other things they can measure — sediment deposits, or tree ring growth in certain ancient, slow - growing trees — which tend to vary along with temperature.
A given amount of radiant energy, say 1000 watts per square meter, can only heat the molecular structure of solids and liquids to certain level of heat [which measured as temperature].
temperature: 1,000 m depth temperature = 5C thermal conductivity of seawater 0.58 W / mK ocean - air interface = 17.000 C 1.441 mm depth temperature = 17.400 C (the warmest spot in the ocean depth though the «few metres» of depth below it is only a miniscule bit colder, all warmed by Sun SWR) this top 1.441 mm depth is the «skin» and «sub-skin» 100m depth temperature certain in range 16.090 C to 17.400 C but virtually certain > 17C because of mixing top ~ 90m temperature gradient of top 1.441 mm of ocean is 277.6 Celsius / metre By conductivity, temperature gradient pushes 161.00 w / m ** 2 up from 1.441 mm depth to ocean - air interface which precisely removes the Sun's 161 w / m ** 2 going into the top few metres depth and leads to no ocean warming.
The confidence level was at 95 % of 97 % of allegedly all scientists that certain temperatures would occur by a date which has already passed.
For instance, ground source heat pumps tend to have higher efficiencies than air source units during the heating season due to the relative stability of ground temperatures below certain depths, though air source units — which involve much lower capital costs — have closed the gap in recent years as manufacturers have refined their design, and there is evidence to indicate that space heating demand in many Irish buildings may be peaking in Ireland's frequently relatively mild but windy weather, as the guide to air source heat pumps in Issue 24 of Passive House Plus discussed.
Now are you claiming you can take a molecule with a certain kinetic energy (which is what temperature is a measurement of), and raise it 17 kilometers above the Earth (increasing its potential energy by 4664 Joules if we're talking about a mole of N2) without inputting more energy, and have it maintain that same kinetic energy, that same temperature?
Rather, the intrinsic thermal lapse between two reservoirs at different temperatures creates the convection that establishes a self - consistent lapse in the atmosphere in between, which can be enormously complex because once the convective forces exceed certain limits, the convective flow becomes turbulent.
These stem from a diversity of site - specific conditions, including, but not limited to: local vegetation; presence of building structures and contributions made by such structures involving energy use, heating and air conditioning, etc; exposure to winds, the wind velocities determined by climatic factors and also whether certain wind directions are more favored than others by terrain or the presence or absence thereof to bodies of water; proximity to grass, asphalt, concrete or other material surfaces; the physical conditions of the CRS itself which include: the exact location of the temperature sensors within it, the degree of unimpeded flow of external air through the CRS, the character of the paint used; the exact height of the instrument above the external surface (noting that when the ground is covered by 3 feet of snow, the temperature instrument is about 60 % closer to, or less than 2 feet, above an excellent radiating surface, much closer than it would be under snow - free conditions).
Jo, correct me if I'm wrong or speaking out of line but I have discussed with my esteemed collegues, and after a long and satisfying session of wanking each other off we came to the conclusion that to a certain extent (although we aren't certain of the extent of the certainty) for a long period of time the best we can hope for, at least in terms of [our] grandchildren, is to stabilise the planet and it will stabilise at a temperature which is probably 2 degrees or more above the pre-industrial!
On a good, bright day with very little humidity there is a certain rate at which the temperature in the atmosphere falls, and this rate is, in general, lower than the «maximum stable gradient,» which is represented by curve (b).
McLean et al. (2009) submitted a paper in December 2008, which was published in July 2009, about how a certain mode of climate variation (the Southern Oscillation) seems to control a lot of the short - term fluctuations in global temperature.
It allows us to calculation the amount of radiation which is emitted by a body at a certain temperature, or the temperature which a body needs to emit a certain radiation.
Are there homeostatic systems within the climate which tend to keep it in a certain temperature range despite variations in forcing?
a b c d e f g h i j k l m n o p q r s t u v w x y z