Sentences with phrase «same chemical compositions»

Two stars with the same chemical compositions are likely to have been born in the same molecular cloud.
Stereoisomers are substances which have the same chemical composition, yet differ in the spatial arrangement of their atoms.
«Every star in that cluster will have the same chemical composition, or DNA — these clusters are quickly pulled apart by our Milky Way Galaxy and are now scattered across the sky,» Dr Martell said.
Timothy Ruppel, a fuel expert at PerkinElmer in Oak Brook, Ill., described testing procedures to ensure that every truckload of racing fuel delivered to the track has the same chemical composition.
The 2D analogue material has the same chemical composition and active site as the 3D porous zeolite but its active site is exposed on a flat surface, which is easier to access with such tools.
The two are moving at the same speed and have the same chemical composition, so the researchers think they have the same origin story.
«They're basically the same material with the same chemical composition, but the positions of their atoms are different,» confirmed Lou.
# 41, Hi, my English is rather elemental, so I can not express as I would like: although you are partially right, system Earth has never never had in the past the same chemical composition like it has today.

Not exact matches

What this means is that, in favorable cases (suitable chemical composition of the system and of the surroundings), there is a closed set of states such that the existence of one brings about another, and then the successor states, so that the system eventually returns to a state which is the same as the starting state.3 (As James Joyce put it, «Finagin.»)
In summary, a capsule of ground piquin pods will virtually be the same in chemical composition as a capsule of ground cayenne pods.
But the chemical composition of sugar — whether from dried mango or a Mars bar — remains the same.
In the study, published online June 3, 2014 in the journal Nutrition, Keck School of Medicine researchers analyzed the chemical composition of 34 popular beverages, finding that beverages and juices made with high fructose corn syrup (HFCS), such as Coca - Cola, Pepsi, Dr Pepper, Mountain Dew and Sprite, all contain 50 percent more fructose than glucose, a blend that calls into question claims that sugar and HFCS are essentially the same.
The clues come from the chemical composition of our sun, which differs from that of nearby stars of about the same age.
The composition of this lava dome is different from the magma that caused the giant caldera to erupt — it shows the same chemical characteristics as the current post-caldera volcano on the nearby Satsuma Iwo - jima Island.
Its chemical composition is the same as that of quartz.
For example, in a cloud where stars formed rapidly, might the cloud not have had enough time to homogenize thoroughly, thus giving rise to stars born at the same time but not uniform in chemical composition?
The research team detected only minor differences in the chemical composition among the beans harvested from the farms during the same weather conditions.
So they analyzed the chemical composition of the odor mixture wafting from the forearms of 16 people of various ethnic backgrounds; they did the same for samples from pigeons and chickens, two species that Culex mosquitoes like.
For decades, astronomers thought that the stars that made up a given globular cluster all shared the same ages and chemical compositions — but we now know that they are stranger and more complicated creatures.»
A dark atom could use dark photons to do the same when it hits a dark matter detector, depending on the chemical composition of the detector.
We detect such currents in muscles, nerves, secretory glands, and electric organs of fish as well as in plant tissue -LRB-...) It seems likely that all these currents have a similar, if not the same basis, and that their strength and potency depends on the structural conditions and chemical composition of the cells making up each organ.»
Because all the stars in a cluster have very nearly the same age and chemical composition, the differences between the member stars are entirely the result of their different masses.
The UniChem connectivity search function allows users to find not only exact matches of their chemical structure across 60 million related molecules from 21 data sources worldwide, but also identifies «equivalent» structures that have the same atom connectivity while differing in stereochemistry or isotopic composition, or which exist in a different salt form.
The chemical composition of pure cane sugar is the exact same as refined sugar and is metabolized the same way refined sugar is as they are both broken down into glucose and fructose, affecting blood sugar levels and raising insulin levels which comes with it's negative side effects.
Synthetic fructooligosaccharides have the same chemical and structural composition as oligofructose, except that the degree of polymerization ranges from two to four.
In the same exhibition, she also showed a number of floor sculptures made from alum which appeared quite formal and solid, several of them for example mimicking the steel columns of the gallery, but which will slowly change in chemical composition and break down if submitted to particular external conditions.
While scientists generally agree that this solar system's sun and planets came from the same nebular cloud, they do not know enough about how Earth obtained its chemical composition to understand its evolution or why the other planets are different from one other.
Here, the same model run is repeated several times with different starting conditions but with the same boundary conditions, such as a prescribed change in the chemical composition of the atmosphere.
The chemical composition of wood fiber, including roots and the entire vegetative mass is roughly the same, ton for ton, as coal from the Powder River Basin.
First, that would mean that the thermal output of the IFR is exactly the same (flow, temperature, heat content, chemical composition including additives) as that from the coal burner for which the generators have been optimized.
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