When ice forms on the beds, trucks can be driven onto the ice to spread a thin layer of sand that helps to control pests and rejuvenate the vines.

* When the metal atoms are hexagonal close packed, ( hcp ), as the octahedral interstices lie directly opposite each other on either side of the layer of metal atoms, filling only one of these with carbon achieves 2: 1 stoichiometry with the CdI < sub > 2 </ sub > structure.

When the upper layer cooled so its density was greater than the lower layer, the waters mixed ( 1978 – 79 ).

When the hailstone moves into an area with a high concentration of water droplets, it captures the latter and acquires a translucent layer.

When the surface glycosaminoglycan ( GAG ) layer is damaged ( via a urinary tract infection ( UTI ), excessive consumption of coffee or sodas, traumatic injury, etc.

When the user pushes down at a particular position, their finger pushes the front layer down through the spacer layer to close a circuit at one of the intersections of the grid.

When no voltage is applied to a TN liquid crystal cell, polarized light passes through the 90-degrees twisted LC layer.

When physical chemist Richard Williams applied an electric field to a thin layer of a nematic liquid crystal at 125 ° C, he observed the formation of a regular pattern that he called domains ( now known as Williams Domains ).

When an electric field is applied to the LC layer, the long molecular axes tend to align parallel to the electric field thus gradually untwisting in the center of the liquid crystal layer.

When core convection does not occur, a helium-rich core develops surrounded by an outer layer of hydrogen.

When extended indefinitely, a layer of hexagonal boron nitride, BN, is obtained, with a structure identical to that of graphene apart from the alternation between boron and nitrogen in each ring.

When a layer of shingles wears out, they are usually stripped, along with the underlay and roofing nails, allowing a new layer to be installed.

When stainless steel parts such as nuts and bolts are forced together, the oxide layer can be scraped off, causing the parts to weld together.

When it first forms, this protective layer is only 1 – 2 nm thick but continues to slowly grow ; reaching a thickness of 25 nm in four years.

When exposed to nitrogen clean titanium metal is covered with a titanium nitride layer.

When the client program on the destination computer receives them, the TCP layer ( Transport Layer ) reassembles the individual segments and ensures they are correctly ordered and error free as it streams them to an application.

When finely divided, it can react with cold water ; in air, uranium metal becomes coated with a dark layer of uranium oxide.

When a voltage is applied between the gate and body terminals, the electric field generated penetrates through the oxide and creates an " inversion layer " or " channel " at the semiconductor-insulator interface.

When a ground plane layer is present underneath, it forms a transmission line ( stripline ) with the trace.

When light is transmitted through a layer of magneto-optic material, the result is called the Faraday effect: the plane of polarization can be rotated, forming a Faraday rotator.

When identifying communication partners, the application layer determines the identity and availability of communication partners for an application with data to transmit.

When Charlie Brown says that he has done stupid things in his life also, Linus angrily vows to him that the Great Pumpkin will come to the pumpkin patch next year.

When the species first arrived in the UK, it was labelled " the many-named ladybird ", because among the names listed were: multivariate, southern, Japanese, and pumpkin ladybird.

When Jack and Sally walk out of the crypt, Sally says to Jack, " We're all safe, now that our pumpkin king has returned " giving Jack an idea to use his pumpkin king powers to defeat Oogie's monsters.

When raw, it resembles the flavor of roasted pumpkin seed, and when roasted, its mild, nutty flavor and tender-crispy texture is thought by some to be superior to that of the almond.

When used as a companion planting, dill draws in many beneficial insects as the umbrella flower heads go to seed.

When relay sowing, if the last seed during sowing lands in an occupied hole, all the contents of that hole, including the last sown seed, are immediately resown from the hole.

When the seed germinates, the root ( radicle ) of its embryo pushes out through one of the eyes of the shell.

When being grown for seed, cabbages must be isolated from other B. oleracea subspecies, including the wild varieties, by to prevent cross pollination.

When grown from seed, the trees do not begin to yield fruit until they are thirty to forty years old.

When his work is completed among the living, he takes every form to his heart, because the seed of the gods came into being in his body [...] the healing body of his mother.

When a crystal of ice-nine contacts liquid water, it becomes a seed crystal that makes the molecules of liquid water arrange themselves into the solid form, ice-nine.

When the Q is raised, lasing builds up from the initial seed, producing a Q-switched pulse that has characteristics inherited from the seed.

When used on tilled land in combination with the other two types, chain harrowing rolls the remaining larger clumps of soil to the surface where the weather will break them down and prevent interference with seed germination.

When grown from seed, guavas can bear fruit as soon as two years, or as long as eight years.

When the silicon is fully melted, a small seed crystal mounted on the end of a rotating shaft is slowly lowered until it just dips below the surface of the molten silicon.

When flower buds ( not the flowers themselves ) or seed pods are crushed, a reddish / purple liquid is produced.

When intended as fodder, the seed is sown densely, up to 250 kilograms per hectare.

When meant for seed, sowing is done early in the planting season for good returns ; but, when for green food, any time in spring is suitable.

When seeds are formed, most plants store a food reserve with the seed, such as starch, proteins, or oils.

When the seed imbibes water, hydrolytic enzymes are activated which break down these stored food resources into metabolically useful chemicals.

When a mature seed is placed under favorable conditions and fails to germinate, it is said to be dormant.

When grown from seed, feijoas are noted for extremely slow growth during their first year or two, and young plants, though cold tolerant, can be very sensitive to high wind.

When the fruit are immature, the seed pulp is white and opaque.

When these gymnosperm fossils are considered, the question of gnetophyte relationships to other seed plants becomes even more complicated.

When a peer completely downloads a file, it becomes an additional seed.

When software implementations of the same algorithm (" software tokens ") appeared on the market, public code has been developed by the security community allowing a user to emulate RSA SecurID in software, but only if they have access to a current RSA SecurID code, and the original RSA SecurID seed file introduced to the server.

When grown from seed, plants take around four to five years to reach maturity and will live for 20 to 30 years if cultivated in the right conditions.