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"ice crystal" Definitions
  1. ICE NEEDLE
"ice crystal" Antonyms

111 Sentences With "ice crystal"

How to use ice crystal in a sentence? Find typical usage patterns (collocations)/phrases/context for "ice crystal" and check conjugation/comparative form for "ice crystal". Mastering all the usages of "ice crystal" from sentence examples published by news publications.

More water vapor fuels more ice crystal growth, which means shinier clouds.
"Frost bit?" is not a snowflake or an ice crystal in this puzzle.
But these diamonds contain water frozen into a special kind of ice crystal, called ice-VII.
To try to avoid these potential problems, Alcor uses a vitrification solution to minimize ice crystal formation.
Those little lakes expand, eventually covering the whole ice crystal and encasing the core, which also eventually melts.
"...it's becoming ice-crystal-clear that change in the far north will increasingly affect us all," Francis writes.
Snowflakes develop when a water droplet freezes onto a dust particle in the sky, resulting in an ice crystal.
This high-tech gel is gradually added to the body to prevent ice crystal formation—the mortal enemy of biological sustainability.
This thinning could be theoretically accomplished by seeding cirrus clouds with particles that disrupt ice crystal formation (nucleation), leading to reduced cirrus cloud cover.
Including the hexagonal arrangement of water molecules found in common ice, known as "ice Ih," scientists had already discovered a bewildering 18 architectures of ice crystal.
Less ice crystal formation and an intense creaminess that's reminiscent of store-bought premium ice cream, thanks to a more powerful compressor that freezes the mixture faster.
Pure water doesn't freeze at 32 degrees Fahrenheit "To make rain, your clouds have to form first an ice crystal, even in the Sahara desert," says Schnell.
As a result, they faced high winds and ice-crystal blasts and had to break path through fresh snow and ice covering the fixed lines to the summit.
The probe then lowered its camera, and took another eight images of ice-crystal clouds moving along the southern horizon, with a pair of hills visible in the foreground.
If you've ever seen an ice crystal form from a single spot, you've seen this in action: A small imperfection provides a low-energy spot at which solidification can start.
If my skin is being somewhat normal, then I will use Crème de la Mer ($2700; lasts 22 year) or La Prairie Cellular Ice Crystal Cream ($8003; lasts 2800 year).
She sat amid ice-crystal-covered pine trees, floated on ice sheets while looking up at stars and hung out in a woodland house where animals streamed in to visit her.
"As a result, the observed particle reductions we've measured during ACCESS should directly translate into reduced ice crystal concentrations in contrails, which in turn should help minimize their impact on Earth's environment," Anderson added.
"The atmosphere is currently at the perfect temperature for snow product," and as the steam escapes—instead of evaporating—it adds moisture and warmth to the ice crystal-laden clouds, giving them a boost at producing snow.
Think about how snowflakes are formed; a tiny dust particle in the clouds catches water vapor and turns into an ice crystal, as the flake falls through the earth's atmosphere the pattern multiplies into a complex formation.
One major piece, featured as part of a trilogy of shows Yi mounted between 2013 and 2014 that dealt with a breakup that she described as a "metaphysically violent vivisection," featured an ice crystal that slowly melted over the course of the exhibition.
These thin clouds contain millions of flat, hexagonal crystals of ice that float horizontally in the air Each ice crystal acts like a mirror pointed downward, reflecting the artificial light back to your eyes — as long as the cloud is about halfway between you and the light source.
As to whether or not irrevocable damage occurs in the brain during the seconds and minutes following death, or as the brain is brought down to temperatures reaching -196 degrees Celsius (-320 degrees Fahrenheit) is another question entirely; a notorious issue facing cryonics is the degree to which "ice crystal formation, osmotic shock, and membrane damage during freezing and thawing will cause cell death," as noted in a 2017 Integrative Medicine Research study.
In physical chemistry terms, the AFPs adsorbed onto the exposed ice crystal force the growth of the ice crystal in a convex fashion as the temperature drops, which elevates the ice vapour pressure at the nucleation sites. Ice vapour pressure continues to increase until it reaches equilibrium with the surrounding solution (water), at which point the growth of the ice crystal stops. The aforementioned effect of AFPs on ice crystal nucleation is lost at the thermal hysteresis point. At a certain low temperature, the maximum convexity of the ice nucleation site is reached.
The temperature of the solution at the point when the ice crystal grows is called the freezing point.
AFPs work through an interaction with small ice crystals that is similar to an enzyme-ligand binding mechanism which inhibits recrystallization of ice. This explanation of the interruption of the ice crystal structure by the AFP has come to be known as the adsorption-inhibition hypothesis. According to this hypothesis, AFPs disrupt the thermodynamically favourable growth of an ice crystal via kinetic inhibition of contact between solid ice and liquid water. In this manner, the nucleation sites of the ice crystal lattice are blocked by the AFP, inhibiting the rapid growth of the crystal that could be fatal for the organism.
Any further cooling will actually result in a "spreading" of the nucleation site away from this convex region, causing rapid, uncontrollable nucleation of the ice crystal. The temperature at which this phenomenon occurs is the thermal hysteresis point. The adsorption-inhibition hypothesis is further supported by the observation that antifreeze activity increases with increasing AFP concentration – the more AFPs adsorb onto the forming ice crystal, the more 'crowded' these proteins become, making ice crystal nucleation less favourable. In the R. inquisitor beetle, AFPs are found in the haemolymph, a fluid that bathes all the cells of the beetle and fills a cavity called the haemocoel.
A frozen plain located on Shuggazoom's North Pole that is occupied only by Morlath and his snow monsters. The Ice Crystal of Vengeance was located here.
AFPs create a difference between the melting point and freezing point (busting temperature of AFP bound ice crystal) known as thermal hysteresis. The addition of AFPs at the interface between solid ice and liquid water inhibits the thermodynamically favored growth of the ice crystal. Ice growth is kinetically inhibited by the AFPs covering the water-accessible surfaces of ice. Thermal hysteresis is easily measured in the lab with a nanolitre osmometer.
Incorporating these ice-structuring proteins means that a lower cream content, and thus a lower calorie content, ice cream can be manufactured without the risk of ice crystal formation.
Ice nucleation mechanisms. An ice nucleus, also known as an ice nucleating particle (INP), is a particle which acts as the nucleus for the formation of an ice crystal in the atmosphere.
Levy Island, in Crystal Sound, Antarctica, is named in honor of Levy's 1957 work with SW Peterson determining the position of hydrogen atoms in an ice crystal using neutrons. He was president of the American Crystallographic Association in 1965.
At greater depths, the ice crystal structure changes from hexagonal to cubic, and the air molecules move inside the crystals, in a structure called a clathrate. The bubbles disappear, and the ice becomes stable again.Uchida et al. (1994), p. 302.
Cumulus pileus clouds refer to cumulus clouds that have grown so rapidly as to force the formation of pileus over the top of the cloud. Cumulus velum clouds have an ice crystal veil over the growing top of the cloud.
Due to the lack of realistic representation of ice crystal nucleation in Earth system models, some studies have used a simplified representation of cirrus cloud thinning by increasing the terminal velocity of ice crystals below the homogeneous freezing threshold of about -38 °C.
Fructose has a greater effect on freezing point depression than disaccharides or oligosaccharides, which may protect the integrity of cell walls of fruit by reducing ice crystal formation. However, this characteristic may be undesirable in soft-serve or hard-frozen dairy desserts.
Guar gum retards ice crystal growth by slowing mass transfer across the solid/liquid interface. It shows good stability during freeze-thaw cycles. Thus, it is used in egg-free ice cream. Guar gum has synergistic effects with locust bean gum and sodium alginate.
When an ice crystal collides with supercooled water it is called accretion (or riming). Droplets freeze upon impact and can form graupel. If the graupel formed is reintroduced into the cloud by wind, it may continue to grow larger and more dense, eventually forming hail.
To cryopreserve HSCs, a preservative, dimethyl sulfoxide, must be added, and the cells must be cooled very slowly in a controlled-rate freezer to prevent osmotic cellular injury during ice-crystal formation. HSCs may be stored for years in a cryofreezer, which typically uses liquid nitrogen.
He loves music and, apparently, snow, and owns a drum. His powerup is the Magic Ice Crystal. He's probably named after Pierre, South Dakota. Kisha: (Voiced by Hope Levy) A koala who wears purple sandals and a painting shirt with a blue paint stain and a green paint stain.
The crew successfully troubleshooted a student experiment on ice crystal growth. The experiment's first activation did not produce crystals because the supercooled water formed an ice slag on the cooling plate. The crew turned the experiment off, allowing the ice to thaw, and then redispersed the liquid. Several crystals formed.
Vladyslav Pikhovych was born in Dnipro. In addition to the figure skating school, Pikhovich trained in the theater on ice "Crystal" from 2005 to 2007. Received a bachelor's degree at the Ukrainian University of Customs and Finance in 2017. Received a master's degree at the Zaporizhzhya National Technical University in 2019.
Altostratus can be composed of ice crystals. In some ice crystal altostratus, very thin, rapidly disappearing horizontal sheets of water droplets appear at random. The sizes of the ice crystals in the cloud tended to increase as altitude decreased. However, close to the bottom of the cloud, the particles decreased in size again.
Cryoconservation is limited by the cells and tissues that can be frozen and successfully thawed. Cells and tissues that can be successfully frozen are limited by their surface area. To keep cells and tissues viable, they must be frozen quickly to prevent ice crystal formation. Thus, a large surface area is beneficial.
Lethal intracellular freezing can be avoided if cooling is slow enough to permit sufficient water to leave the cell during progressive freezing of the extracellular fluid. To minimize the growth of extracellular ice crystal growth and recrystallization, biomaterials such as alginates, polyvinyl alcohol or chitosan can be used to impede ice crystal growth along with traditional small molecule cryoprotectants. That rate differs between cells of differing size and water permeability: a typical cooling rate of about 1 °C/minute is appropriate for many mammalian cells after treatment with cryoprotectants such as glycerol or dimethyl sulfoxide, but the rate is not a universal optimum. The 1 °C / minute rate can be achieved by using devices such as a rate-controlled freezer or a benchtop portable freezing container.
Eventually this ice crystal will grow large enough to fall. It may even collide with other ice crystals and grow larger still through collision coalescence, aggregation, or accretion. The Bergeron Process often results in precipitation. As the crystals grow and fall, they pass through the base of the cloud, which may be above freezing.
Freshly fallen snowflakes Macro photography of natural snowflake A snowflake is a single ice crystal that has achieved a sufficient size, and may have amalgamated with others, then falls through the Earth's atmosphere as snow.Knight, C.; Knight, N. (1973). Snow crystals. A snowflake is also the name of a person who cannot attend pub lunch on Fridays.
Photograph showing details of an ice cube under magnification. Ice Ih is the form of ice commonly seen on Earth. Phase space of ice Ih with respect to other ice phases. Ice Ih (hexagonal ice crystal)(pronounced: ice one h, also known as ice-phase-one) is the hexagonal crystal form of ordinary ice, or frozen water.
The continuous phase consists of a concentrated, unfrozen liquid of sugars. The final average diameter of ice crystals depends on the rate of freezing. The faster this is, the more nucleation is promoted and the greater the number of small ice crystals. Usually, after a cooling treatment ice crystal dimensions in the freezer are about 35–80 µm.
He noticed that on days when the temperature was below freezing, the stratus deck that typically covered the hillside stopped at the top of the canopy instead of extending to the ground as it did on days when the temperature was above freezing. Being familiar with Wegener's earlier work, Bergeron theorized that ice crystals on the tree branches were scavenging vapor from the supercooled stratus cloud, preventing it from reaching the ground. In 1933, Bergeron was selected to attend the International Union of Geodesy and Geophysics meeting in Lisbon, Portugal where he presented his ice crystal theory. In his paper, he stated that if the ice crystal population was significantly small compared to the liquid water droplets, that the ice crystals could grow large enough to fall out (Wegener's original hypothesis).
One witness described it as being " thick at least." Another crevasse reportedly opened up in the late 1990s or early 2000s. One witness threw a stone in and from the fall time calculated that it was over deep. Around this time Brigham Young University dug down to the ice and attempted to obtain a core sample and study the ice crystal morphology.
Certain frost-susceptible soils expand or heave upon freezing as a result of water migrating via capillary action to grow ice lenses near the freezing front. This same phenomenon occurs within pore spaces of rocks. The ice accumulations grow larger as they attract liquid water from the surrounding pores. The ice crystal growth weakens the rocks which, in time, break up.
A somewhat common misconception among the general public is to refer to any member of the ice halo family as a "sun dog" (especially the 22° halo, being one of the most common varieties). However, sun dogs represent just one of many different types of halos. For referring to the atmospheric phenomenon in general, the term (ice crystal) halo(s) is more appropriate.
The Caldecott Medal winner in 1999 for the best-illustrated children's book was Snowflake Bentley, which remembers Bentley's life. At the Fairbanks Museum and Planetarium, a noted meteorological observation center in St. Johnsbury, Vermont, there is an exhibit about atmospheric ice crystal formation featuring several of Bentley’s photos and a short biography. Bentley was a friend of naturalist, industrialist, and collector Franklin Fairbanks.
Ice crystals fall through a cloud of super-cooled droplets—minute cloud droplets that have fallen below freezing temperature but have not frozen. The ice crystal plows into the super-cooled droplets and they immediately freeze to it. This process forms graupel, or snow pellets, as the droplet continues to accumulate on the crystal. The pellets bounce when they hit the ground.
The pathological mechanism by which frostbite causes body tissue injury can be characterized by four stages: Prefreeze, freeze- thaw, vascular stasis, and the late ischemic stage. # Prefreeze phase: involves the cooling of tissues without ice crystal formation. # Freeze-thaw phase: ice-crystals form, resulting in cellular damage and death. # Vascular stasis phase: marked by blood coagulation or the leaking of blood out of the vessels.
Accretion is defined as the gradual collection of something over time.Accretion (definition) Merriam-Webster. Retrieved 14 February 2014. In meteorology or atmospheric science it is the process of accumulation of frozen water as precipitation over time as it descends through the atmosphere, in particular when an ice crystal or snowflake hits a supercooled liquid droplet, which then freeze together, increasing the size of the water particle.
Sun dogs as well as the 22° and 46° halos are explained in terms of refractions from ice crystals on pages 466 - 524. Jacobowitz in 1971 was the first to apply the ray-tracing technique to hexagonal ice crystal. Wendling et al. (1979) extended Jacobowitz's work from hexagonal ice particle with infinite length to finite length and combined Monte Carlo technique to the ray-tracing simulations.
Bruster's Ice Cream is an American chain of ice cream parlors whose ice cream and frozen yogurt is made from a milk-based mix at each individual store. Their primary operating region is in most states east of the Mississippi River. The chain is based in Bridgewater, Pennsylvania. All of the ice cream is made fresh in the stores in order to avoid ice crystal formation.
Temperature methods conserve the physical structure of the ECM scaffold, but are best handled by thick, strong tissues. Direct force of pressure to a tissue will guarantee disruption of the ECM structure, so pressure is commonly used. Pressure decellularization involves the controlled use of hydrostatic pressure applied to a tissue or organ. This is done best at high temperatures to avoid unmonitored ice crystal formation that could damage the scaffold.
Furthermore, both hydrophobicity and icephobicity can lead to quite complex phenomena, such as self-organized criticality-driven complexity as a result of hydrophobic interactions (during wetting of rough/heterogeneous surfaces or during polypeptide chain folding and looping) or ice crystallization (fractal snowflakes). Note that thermodynamically both the hydrophobic interactions and ice formation are driven by the minimization of the surface Gibbs energy, ΔG = ΔH − TΔS, where H, T, and S are the enthalpy, temperature, and entropy, respectively. This is because in the hydrophobic interactions large positive value of TΔS prevails over a small positive value of ΔH making spontaneous hydrophobic interaction energetically profitable. The so-called surface roughening transition governs the direction of ice crystal growth and occurs at the critical temperature, above which the entropic contribution into the Gibbs energy, TΔS, prevails over the enthalpic contribution, ΔH, thus making it more energetically profitable for the ice crystal to be rough rather than smooth.
In his fight with High King Fingolfin, he suffered several wounds; his foot was hewn by Fingolfin's Sword of Ice Crystal, Ringil. At the end of this battle, Thorondor, the great Eagle, swooped down and scarred Morgoth's face with his talons, a wound that also never healed. In battle, he wore black armour and wielded Grond, the Hammer of the Underworld. The great battering ram of Mordor was named for this weapon.
The Kern arc is an extremely rare atmospheric optical phenomenon belonging to the family of ice crystal halos. It is a complete and faint circle around the zenith, in contrast to the related and much more common circumzenithal arc, which is only ever a partial circle. The Kern arc is named after H.F.A. Kern in the Netherlands, who first reported it in 1895. Since then it has been reported on six occasions.
RiAFP refers to an antifreeze protein (AFP) produced by the Rhagium inquisitor longhorned beetle. It is a type V antifreeze protein with a molecular weight of 12.8 kDa; this type of AFP is noted for its hyperactivity. R. inquisitor is a freeze-avoidant species, meaning that, due to its AFP, R. inquisitor prevents its body fluids from freezing altogether. This contrasts with freeze- tolerant species, whose AFPs simply depress levels of ice crystal formation in low temperatures.
Journal of Natural History, 24 (4): 801-937. doi:10.1080/00222939000770571 In Petalomonas, cells are covered with approximately a dozen thickly, fused pellicle strips making the cell very rigid and possibly resistant to surface ice crystal formation that can disrupt the cell. These pellicle strips, unlike most euglenoids, are lacking grooves or troughs; however, species specific pellicle features, such as pleat-like thickenings at the joints of pellicle strips, that characterize P. cantuscygni, can distinguish certain species.
Analogous refraction demonstration experiment for the Circumzenithal Arc. Here, it is mistakenly labelled as an artificial rainbow in Gilberts book This approach employs the fact that in some cases the average geometry of refraction through an ice crystal may be imitated / mimicked via the refraction through another geometrical object. In this way, the Circumzenithal arc, the Circumhorizontal arc and the suncave Parry arcs may be recreated by refraction through rotationally symmetric (i.e. non-prismatic) static bodies.
"Artificial circumzenithal and circumhorizontal arcs", M. Selmke and S. Selmke, American Journal of Physics (Am. J. Phys.) Vol 85(8), p.575-581 link A particularly simple table-top experiment reproduces artificially the colorful circumzenithal and circumhorizontal arcs using a water glass only. The refraction through the cylinder of water turns out to be (almost) identical to the rotationally averaged refraction through an upright hexagonal ice crystal / plate-oriented crystals, thereby creating vividly colored circumzenithal and the circumhorizontal arcs.
Turboprops now have to be certificated for high-altitude ice crystal icing: a compressor blisk has to survive an impact from an ice ball. This would require a 2 lb (1.13kg) heavier first stage and would hamper the engine aerodynamics. GE proposed channelling to the engine inlet hot oil from an accessory gearbox sump to avoid growing ice and will test this in a Canadian cold weather facility in summer 2018. Cooled turbines allow over higher operating temperatures.
Studies have shown that high concentrations of microbial cryoprotective exopolymer (EPS) were found in the sea ice brine. These EPS were shown to correlate with a stable microbial community composition throughout the winter season. They are thought to play an important role in sea ice environments where they act as a buffer and cryoprotectant against high salinity and ice-crystal damage. These exopolymers are believed to constitute a microbial adaptation to low temperatures in extreme environments.
A Slurpee A frozen carbonated drink or frozen carbonated beverage (FCB) is a mixture of flavored sugar syrup, carbon dioxide, and water that is frozen by a custom machine creating a drink comprising a fine slush of suspended ice crystals, with liquid. The final ice crystal concentration changes from 10% to 50%. It dispenses on a type of soft drink and a trade mark of each company producing FCB. Some common FCBs are the Slurpee, the ICEE, and the Froster.
Rigsby Islands () is a small group of ice-capped islands lying off the northeast coast of Adelaide Island, about 2 nautical miles (3.7 km) south of Sillard Islands. Mapped from air photos taken by Ronne Antarctic Research Expedition (RARE) (1947–48) and Falkland Islands and Dependencies Aerial Survey Expedition (FIDASE) (1956–57). Named by United Kingdom Antarctic Place- Names Committee (UK-APC) for George P. Rigsby, American geologist who has specialized in the investigation of ice crystal structure and the plasticity of ice.
Insects that are psychrotrophic can survive cold temperatures through several general mechanisms (unlike opportunistic and chill susceptible insects): (1) chill tolerance, (2) freeze avoidance, and (3) freeze tolerance. Chill tolerant insects succumb to freezing temperatures after prolonged exposure to mild or moderate freezing temperatures. Freeze avoiding insects can survive extended periods of time at sub-freezing temperatures in a supercooled state, but die at their supercooling point. Freeze tolerant insects can survive ice crystal formation within their body at sub-freezing temperatures.
Even if the temperature gradient within the slurry is perfectly vertical, it is common to see tilting or curvature of the lamellae as they grow through the suspension. To explain this, it is possible to define two distinct growth directions for each ice crystal. There is the direction determined by the temperature gradient, and the one defined by the preferred growth direction crystallographically speaking. These angles are often at odds with one another, and their balance will describe the tilt of the crystal.
The freezing from the surface or from within may be random. However, in the strange world of water, tiny amounts of liquid water theoretically still are present, even as temperatures go below minus 48 C (minus 55 F) and almost all the water has turned solid, either into crystalline ice or amorphous water. Below minus 48 C (minus 55 F), ice is crystallizing too fast for any property of the remaining liquid to be measured. The freezing speed directly influences the nucleation process and ice crystal size.
A cirrostratus cloud Cirrostratus clouds, a very high ice-crystal form of stratiform clouds, can appear as a milky sheen in the sky or as a striated sheet. They are sometimes similar to altostratus and are distinguishable from the latter because the sun or moon is always clearly visible through transparent cirrostratus, in contrast to altostratus which tends to be opaque or translucent. Cirrostratus come in two species, fibratus and nebulosus. The ice crystals in these clouds vary depending upon the height in the cloud.
When sucrose is cooled slowly it results in crystal sugar (or rock candy), but when cooled rapidly it can form syrupy cotton candy (candyfloss). Vitrification can also occur in a liquid such as water, usually through very rapid cooling or the introduction of agents that suppress the formation of ice crystals. This is in contrast to ordinary freezing which results in ice crystal formation. Vitrification is used in cryo-electron microscopy to cool samples so quickly that they can be imaged with an electron microscope without damage.
In contrast to that, Flauder et al. demonstrated that an exponential change of the temperature at the cooling plate leads to a constant ice crystal thickness within the complete SSZ, which was attributed to a measurably constant ice-front velocity in a distinct study. This approach enables a prediction of the ice-front velocity from the thermal parameters of the suspension. Consequently, if the exact relationship between the pore diameter and ice-front velocity is known, an exact control over the pore diameter can be achieved.
The Wegener–Bergeron–Findeisen process (after Alfred Wegener, Tor Bergeron and Walter Findeisen), (or "cold-rain process") is a process of ice crystal growth that occurs in mixed phase clouds (containing a mixture of supercooled water and ice) in regions where the ambient vapor pressure falls between the saturation vapor pressure over water and the lower saturation vapor pressure over ice. This is a subsaturated environment for liquid water but a supersaturated environment for ice resulting in rapid evaporation of liquid water and rapid ice crystal growth through vapor deposition. If the number density of ice is small compared to liquid water, the ice crystals can grow large enough to fall out of the cloud, melting into rain drops if lower level temperatures are warm enough. The Bergeron process, if occurring at all, is much more efficient in producing large particles than is the growth of larger droplets at the expense of smaller ones, since the difference in saturation pressure between liquid water and ice is larger than the enhancement of saturation pressure over small droplets (for droplets large enough to considerably contribute to the total mass).
Cryostasis utilizes clathrate-forming gases that penetrate and saturate the biological tissues causing clathrate hydrates formation (under specific pressure-temperature conditions) inside the cells and in the extracellular matrix. Clathrate hydrates are a class of solids in which gas molecules occupy "cages" made up of hydrogen-bonded water molecules. These "cages" are unstable when empty, collapsing into conventional ice crystal structure, but they are stabilised by the inclusion of the gas molecule within them. Most low molecular weight gases (including CH4, H2S, Ar, Kr, and Xe) will form a hydrate under some pressure-temperature conditions.
The ice crystal growth weakens the rocks which, in time, break up. It is caused by the approximately 10% (9.87) expansion of ice when water freezes, which can place considerable stress on anything containing the water as it freezes. Freeze induced weathering action occurs mainly in environments where there is a lot of moisture, and temperatures frequently fluctuate above and below freezing point, especially in alpine and periglacial areas. An example of rocks susceptible to frost action is chalk, which has many pore spaces for the growth of ice crystals.
High-level genus-types particularly show this duality with both short-wave albedo cooling and long-wave greenhouse warming effects. On the whole, ice-crystal clouds in the upper troposphere (cirrus) tend to favor net warming. However, the cooling effect is dominant with mid-level and low clouds, especially when they form in extensive sheets. Measurements by NASA indicate that on the whole, the effects of low and mid-level clouds that tend to promote cooling outweigh the warming effects of high layers and the variable outcomes associated with vertically developed clouds.
Finding the Old Man in the back of the Life Temple, they find that he holds the only bag of wakewater, and to use it on the plant in the center of town. Back in Aquaria, they find that the wakewater does not work, and reviving the crystal is the only thing that will save the town and Spencer. They head off for the Ice Pyramid and defeat the second of the Vile Evils, the Ice Golem. The Ice Crystal is saved, and Benjamin and Phoebe head back to Aquaria.
The process does not impact the product; it merely makes production more efficient and prevents the death of fish which would otherwise be killed to extract the protein. Currently, Unilever incorporates AFPs into some of its American products, including some Popsicle ice pops and a new line of Breyers Light Double Churned ice cream bars. In ice cream, AFPs allow the production of very creamy, dense, reduced fat ice cream with fewer additives. They control ice crystal growth brought on by thawing on the loading dock or kitchen table, which reduces texture quality.
For clinical cryopreservation, vitrification usually requires the addition of cryoprotectants prior to cooling. Cryoprotectants are macromolecules added to the freezing medium to protect cells from the detrimental effects of intracellular ice crystal formation or from the solution effects, during the process of freezing and thawing. They permit a higher degree of cell survival during freezing, to lower the freezing point, to protect cell membrane from freeze-related injury. Cryoprotectants have high solubility, low toxicity at high concentrations, low molecular weight and the ability to interact with water via hydrogen bonding.
The formation of ice from salt water produces marked changes in the composition of the nearby unfrozen water. When water freezes, most impurities are excluded from the water crystals; even ice from seawater is relatively fresh compared with the seawater from which it is formed. As a result of forcing the impurities out, such as salt and other ions, sea ice is very porous and spongelike, quite different from the solid ice produced when fresh water freezes. As the seawater freezes and salt is forced out of the pure ice crystal lattice, the surrounding water becomes more saline as concentrated brine leaks out.
The first roundabout is with Old Columbia Pike and provides access to the park and ride lot; the second is with Maple Lawn Boulevard, which serves the Maple Lawn community to the north. The next two roundabouts are with the ramps to and from US 29 and with MD 216J and Ice Crystal Drive, respectively, on either side of the U.S. Highway. MD 216 continues southeast through intersections with Crest Road and Leishear Road and passes an electric substation before its cloverleaf interchange with I-95. East of I-95, MD 216 has a partial interchange with Stephens Road.
Landing was at Edwards Air Force Base (EAFB), California. STS-34 Atlantis (October 18 to October 23, 1989) was a 5-day mission during which the crew deployed the Galileo spacecraft, on its journey to explore Jupiter, operated the Shuttle Solar Backscatter Ultraviolet Instrument (SSBUV) to map atmospheric ozone and performed numerous secondary experiments involving radiation measurements, polymer morphology, lightning research, microgravity effects on plants and a student experiment on ice crystal growth in space. The mission was accomplished in 79 orbits of the Earth, traveling 1.8 million miles in 119 hours and 41 minutes. Landing was at Edwards Air Force Base, California.
The light that forms the CZA enters an ice crystal through its flat top face, and exits through a side prism face. The refraction of almost parallel sunlight through what is essentially a 90-degree prism accounts for the wide color separation and the purity of color. The CZA can only form when the sun is at an altitude lower than 32.2°. The CZA is brightest when the sun is at 22° above the horizon, which causes sunlight to enter and exit the crystals at the minimum deviation angle; then it is also about 22° in radius, 3° in width.
Other work demonstrated the formation of s-triazines (alternative nucleobases), pyrimidines (including cytosine and uracil), and adenine from urea solutions subjected to freeze-thaw cycles under a reductive atmosphere (with spark discharges as an energy source). The explanation given for the unusual speed of these reactions at such a low temperature is eutectic freezing. As an ice crystal forms, it stays pure: only molecules of water join the growing crystal, while impurities like salt or cyanide are excluded. These impurities become crowded in microscopic pockets of liquid within the ice, and this crowding causes the molecules to collide more often.
Nilas in Baffin Bay New ice is a general term used for recently frozen sea water that does not yet make up solid ice. It may consist of frazil ice (plates or spicules of ice suspended in water), slush (water saturated snow), or shuga (spongy white ice lumps a few centimeters across). Other terms, such as grease ice and pancake ice, are used for ice crystal accumulations under the action of wind and waves. When sea ice begins to form on a beach with a light swell, ice eggs up to the size of a football can be created.
Naturally occurring ice spikes, often in the form of circular ice candles or polyhedral ice towers (usually triangular), are occasionally found in containers of frozen rainwater or tapwater. Water expands by 9% as it freezes into ice and the simplest shape of an ice crystal that reflects its internal structure is a hexagonal prism. The top and bottom faces of the crystal are hexagonal planes called basal planes and the direction that is perpendicular to the basal planes is called the c-axis. The process begins when surface water nucleates around irregularities where it meets the container wall and freezes inward.
The principle of ice growth through vapor deposition on ice crystals at the expense of water was first theorized by the German scientist Alfred Wegener in 1911 while studying hoarfrost formation. Wegener theorized that if this process happened in clouds and the crystals grew large enough to fall out, that it could be a viable precipitation mechanism. While his work with ice crystal growth attracted some attention, it would take another 10 years before its application to precipitation would be recognized. In the winter of 1922, Tor Bergeron made a curious observation while walking through the woods.
Methane clathrate block embedded in the sediment of hydrate ridge, off Oregon, USA Clathrate hydrates, or gas hydrates, clathrates, hydrates, etc., are crystalline water-based solids physically resembling ice, in which small non- polar molecules (typically gases) or polar molecules with large hydrophobic moieties are trapped inside "cages" of hydrogen bonded, frozen water molecules. In other words, clathrate hydrates are clathrate compounds in which the host molecule is water and the guest molecule is typically a gas or liquid. Without the support of the trapped molecules, the lattice structure of hydrate clathrates would collapse into conventional ice crystal structure or liquid water.
If the ice crystals are aligned perpendicular to the temperature gradient (r-crystals), they can be approximated as two resistor elements in series. For this case, the Rice is limiting and will dictate the localized thermal conditions. The lower thermal resistance for the z-crystal case leads to lower temperatures and greater heat flux at the growing crystals tips, driving further growth in this direction while, at the same time, the large Rice value hinders the growth of the r-crystals. Each ice crystal growing within the slurry will be some combination of these two scenarios.
Researchers Greg Fahy and William F. Rall helped to introduce vitrification to reproductive cryopreservation in the mid-1980s. As of 2000, researchers claim vitrification provides the benefits of cryopreservation without damage due to ice crystal formation. The situation became more complex with the development of tissue engineering as both cells and biomaterials need to remain ice-free to preserve high cell viability and functions, integrity of constructs and structure of biomaterials. Vitrification of tissue engineered constructs was first reported by Lilia Kuleshova, who also was the first scientist to achieve vitrification of oocytes, which resulted in live birth in 1999.
Scanning electron microscope image of rime frost on both ends of a "capped column" snowflake. Once a droplet has frozen, it grows in the supersaturated environment, which is one where air is saturated with respect to ice when the temperature is below the freezing point. The droplet then grows by deposition of water molecules in the air (vapor) onto the ice crystal surface where they are collected. Because water droplets are so much more numerous than the ice crystals due to their sheer abundance, the crystals are able to grow to hundreds of micrometers or millimeters in size at the expense of the water droplets.
The mission was accomplished in 109 orbits of the Earth in 167 hours, 54 minutes. STS-34 (October 18–23, 1989) was launched from Kennedy Space Center, Florida and returned to land at Edwards Air Force Base, California. During the mission the crew successfully deployed the Galileo spacecraft, starting its journey to explore Jupiter, operated the Shuttle Solar Backscatter Ultraviolet Instrument (SSBUV) to map atmospheric ozone, and performed numerous secondary experiments involving radiation measurements, polymer morphology, lightning research, microgravity effects on plants, and a student experiment on ice crystal growth in space. The mission was accomplished in 79 orbits of the Earth in 119 hours, 41 minutes.
McCulley, standing 1st from right, with his STS-34 crewmates McCulley was the Pilot on mission STS-34. The crew aboard Shuttle Orbiter Atlantis launched from Kennedy Space Center, Florida on October 18, 1989, and landed at Edwards Air Force Base, California, on October 23, 1989. During the mission crew members successfully deployed the Galileo spacecraft on its journey to explore Jupiter, operated the Shuttle Solar Backscatter Ultraviolet Instrument (SSBUV) to map atmospheric ozone, and performed numerous secondary experiments involving radiation measurements, polymer morphology, lightning research, microgravity effects on plants, and a student experiment on ice crystal growth in space. Mission duration was 4 days, 23 hours, 41 minutes.
The pottery was situated at 173-174 Oldbury Road, Smethwick, then in Staffordshire (now part of Sandwell, in the West Midlands county). The pottery produced was notable for the innovative glazes used on a range of brightly coloured pots, vases, buttons, bowls, tea services and jewellery. The ceramic glazes devised by William Howson Taylor included misty soufflé glazes, ice crystal effect glazes - 'crystalline', lustre glazes resembling metallic finishes, and the most highly regarded of all, sang-de-boeuf and flambé glazes which produced a blood red effect. The sang-de-boeuf glazes were created using reduction of copper and iron oxides at high temperature.
The Cells Alive System (CAS) is a line of commercial freezers manufactured by ABI Corporation, Ltd. of Chiba, Japan claimed to preserve food with greater freshness than ordinary freezing by using electromagnetic fields and mechanical vibrations to limit ice crystal formation that destroys food texture.Owada, N. (2009) "Quick Freezing Apparatus and Quick Freezing Method" US Patent ApplicationOwada, N. (2002) "Highly-efficient freezing apparatus and highly-efficient freezing method" US Patent 7,237,400 They also are claimed to increase tissue survival without having its water replaced by cryogenically compatible fluids; whether they have any effect is unclear. The freezers have attracted attention among organ banking and transplantation surgeons, as well as the food processing industry.
Cirrus clouds merging to cirrocumulus clouds Cirrus clouds range in thickness from to , with an average thickness of . There are, on average, , but this ranges from one ice crystal per 10,000 liters (3.7 ice crystals per 10,000 US gallons) to 10,000 ice crystals per liter (37,000 ice crystals per US gallon), a difference of eight orders of magnitude. The length of each of these ice crystals is usually 0.25 millimeters long, but they range from as short as 0.01 millimeters or as long as several millimeters. The ice crystals in contrails are much smaller than those in naturally occurring cirrus cloud, as they are around 0.001 millimeters to 0.1 millimeters in length.
The museum is organized into 4 different departments: Natural, Historical, Ethnological, and Astronomical.Fairbanks Museum The entire collection includes roughly 175,000 objects, and storage and archive spaces are maintained for many of the items when not on display. The Museum's exhibits include natural specimens, a seasonal wildflower table, a native butterfly house and flower garden (spring- summer), an observation beehive (spring-summer), artistic pieces made out of insects, taxidermy dioramas (moose, bison, flamingos, bears, birds of paradise, snakes, woodchucks and opossums), endangered and extinct species, dinosaurs and fossils, as well as geological displays, ethnographic displays, and various historical and cultural artifacts from around the world. On the second floor there is an exhibit about atmospheric ice crystal formation, featuring photographs by Snowflake Bentley, a friend of Franklin Fairbanks.
Contrails, by affecting the Earth's radiation balance, act as a radiative forcing. Studies have found that contrails trap outgoing longwave radiation emitted by the Earth and atmosphere (positive radiative forcing) at a greater rate than they reflect incoming solar radiation (negative radiative forcing). NASA conducted a great deal of detailed research on atmospheric and climatological effects of contrails, including effects on ozone, ice crystal formation, and particle composition, during the Atmospheric Effects of Aviation Project (AEAP). Global radiative forcing has been calculated from the reanalysis data, climatological models and radiative transfer codes. It is estimated to amount to 0.012 W/m² (watts per square meter) for 2005, with an uncertainty range of 0.005 to 0.026 W/m², and with a low level of scientific understanding.
A subhelic arc is formed when sun rays enter one end face of an ice crystal in singly oriented columns and Parry columns, reflect off two of the crystals side faces, and exits the crystal through the opposite end face. The ray leave the crystal in the exact opposite angle, resulting in a net deviation angle of 120°, the angle for the formation of 120° parhelia.Cowley, South Pole Halos - Zenith View The subhelic arc touches the top of the tricker arc, an indication the two have closely related ray paths.Cowley, South Pole Halos - Anthelic View The subhelic arc crosses the parhelic circle in an acute angle, and at a sun elevation of 27° it passes exactly through the 120° parhelion.
Jason was born in Wichita, Kansas in 1977, but raised in Crystal Lake, Illinois.Jason Adasiewicz makes beautiful vibes at Chicago Tribune He studied jazz drums at DePaul University for three years. He only eased into the vibraphone after leaving school, playing it in the indie- rock scene around Chicago with bands like Pinetop Seven and the singer- songwriter Edith Frost.Creating Uncommon Vibes at New York Times In the early 2000s he began his collaboration with cornetist Josh Berman and drummer Mike Reed. Since then he was worked in the Chicago jazz and improvisation scene with multiple bands, including Rob Mazurek’s Starlicker and Exploding Star Orchestra, Mike Reed’s Loose Assembly, Josh Berman and His Gang, Nicole Mitchell’s Ice Crystal, James Falzone’s Klang and Ken Vandermark’s Topology and Audio One.
The science of freezing water depends on multiple factors, including how water droplets freeze, how much water is in the atmosphere, if water is in a liquid or crystal state, at what temperature it freezes, and whether it crystallizes from within or from the surface. The freezing of nanoscale water or silicon liquid drops is initiated at a number of different distances from the centre of the droplet, providing new insights on a long-standing dispute in the field of material and chemical physics. When water is in a conventional freezer, a dynamic phase transition is triggered. The resulting ice depends on how quickly the system is cooled: If the water is cooled below its freezing point slowly, an ice crystal will result, rather than the poly-crystalline solid that flash freezing produces.
If a freeze casting setup with a constant temperature on either side of the freezing system is used, (static freeze- casting) the front solidification velocity in the SSZ will decrease over time due to the increasing thermal buffer caused by the growing ice front. When this occurs, more time is given for the anisotropic ice crystals to grow perpendicularly to the freezing direction (c-axis) resulting in a structure with ice lamellae that increase in thickness along the length of the sample. Static and dynamic freezing profiles in the steady-state freezing regime To ensure highly anisotropic, yet predictable solidification behavior within the SSZ, dynamic freezing patterns are preferred. Using dynamic freezing, the velocity of the solidification front, and, therefore, the ice crystal size, can be controlled with a changing temperature gradient.
In addition to the crystals, various other items are located throughout the 100 different rooms of the castle which can be collected and used to solve puzzles in order to obtain the crystals. These include coloured keys which open doors of the same colour, giving access to other areas of the game; an 'ice crystal' which, whilst carried, causes water in its vicinity to freeze, enabling access to previously inaccessible areas; trampolines which can be jumped on to reach high areas ordinarily out of reach, and many others. The player is limited to carrying two items at any one time and a certain combination of objects in their inventory is often needed to solve particular problems. For example, one crystal is located in a room behind a brick wall.
The first cryoprotectant solutions able to vitrify at very slow cooling rates while still being compatible with whole organ survival were developed in the late 1990s by cryobiologists Gregory Fahy and Brian Wowk for the purpose of banking transplantable organs. This has allowed animal brains to be vitrified, warmed back up, and examined for ice damage using light and electron microscopy. No ice crystal damage was found; cellular damage was due to dehydration and toxicity of the cryoprotectant solutions. Costs can include payment for medical personnel to be on call for death, vitrification, transportation in dry ice to a preservation facility, and payment into a trust fund intended to cover indefinite storage in liquid nitrogen and future revival costs. As of 2011, U.S. cryopreservation costs can range from $28,000 to $200,000, and are often financed via life insurance.
Absence of freezing indicates that their AFPs can inhibit ice nucleators to vary in low temperatures and may inhibit homogenous nucleation resulting in vitrification. Another study reported that if temperatures were held constant, then C. clavipes individuals with the highest water content had the highest probability of freezing, and individuals with the lowest water content had the lowest probability of freezing.Sformo, T., J. McIntyre, K. R. Walters Jr., B. M. Barnes and J. Duman. 2011. The probability of freezing in the freeze-avoiding beetle larvae Cucujus clavipes puniceus (Coleoptera: Cucujidae) from interior Alaska. Journal of Insect Physiology 57:1170-1177 AFPs decrease the temperature at which an ice crystal grows, defined as the hysteretic freezing point, by an average of 2–5 °C below the melting point in insects, which can be as much as 13 °C in C. clavipes in winter when the insect is dehydrated and the AFPs concentrated.
With testing completed to simulate high-altitude conditions, the GE9X should be free of ice crystal icing (core icing) which was an issue for the GEnx. This is now better understood as well as traditional rime ice. The improvements developed for the GEnx were the variable bypass valve doors: airflow is improved by the way they open inward into the flow path between the booster and high-pressure compressor, naturally ejecting the ice and sand to prevent them from entering the core. Minor tweaks between FETT and second engine to test (SETT) are pivotal to hit its efficiency goals: in the throat between the HP turbine outlet into the LP turbine inlet, the turbine's pinch point is altered to set the operating line of the compressor, turbine and fan. Blades at the back end of the 11-stage HP compressor are just over high. The HP compressor front end tip clearance was modified as the compressor was fine-tuned since initial tests in early 2013.

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