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A magnetically actuated motion control device includes a housing defining a cavity and including a slot therethrough. A movable member is located within the cavity and is movable relative to the housing. A magnetic field generator located on either the housing or the movable member causes the housin

A magnetically actuated motion control device includes a housing defining a cavity and including a slot therethrough. A movable member is located within the cavity and is movable relative to the housing. A magnetic field generator located on either the housing or the movable member causes the housing to press against the movable member to develop a friction force. The flux caused by the magnetic field flows through the housing, the movable member and at least one pole located along the movable member. The at least one pole comprises a first portion having a first axial dimension and a second portion having a second axial dimension where the first axial dimension is greater than the second axial dimension and as a result the magnetic flux through the second portion of the at least one pole has a greater magnitude than the magnetic flux through the first portion of the pole.

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A magnetically actuated motion control device includes a housing defining a cavity and including a slot therethrough. A movable member is located within the cavity and is movable relative to the housing. A magnetic field generator located on either the housing or the movable member causes the housin

A magnetically actuated motion control device includes a housing defining a cavity and including a slot therethrough. A movable member is located within the cavity and is movable relative to the housing. A magnetic field generator located on either the housing or the movable member causes the housing to press against the movable member to develop a friction force. The flux caused by the magnetic field flows through the housing, the movable member and at least one pole located along the movable member. The at least one pole comprises a first portion having a first axial dimension and a second portion having a second axial dimension where the first axial dimension is greater than the second axial dimension and as a result the magnetic flux through the second portion of the at least one pole has a greater magnitude than the magnetic flux through the first portion of the pole. stance inducer is selected from the group consisting of an amino butyric acid, a derivative of an amino butyric acid, isonicotinamide, a derivative of isonicotinamide, a salicylic acid and a derivative of a salicylic acid; preparing a formulation comprising said resistance inducer, a carrier, and optionally further comprising secondary metabolites; treating said plants with secondary metabolites; applying said formulation to said plants; and evaluating said plants for an increase in essential oil content. 2. The method of claim 1, wherein said resistance inducer is a non-protein DL-2 amino butyric acid, in an optimum concentration. 3. The method of claim 1, wherein single or multiple doses of said formulation are sprayed on said plants and wherein said formulation comprises said resistance inducer at a concentration of from about 0.1 mM to about 4 mM. 4. The method of claim 3, wherein said formulation comprises DL-2 amino butyric acid at a concentration of from about 0.1 mM to about 4 mM, and wherein single or multiple doses of said formulation are sprayed on said plants. 5. The method of claim 4, wherein said formulation comprising said DL-2 amino butyric acid is sprayed on said plants 15 days prior to the harvesting of 100-day-old plants. 6. The method of claim 1, wherein said formulation comprises secondary metabolites, and wherein said secondary metabolites are selected from the group consisting of alkaloids, fatty acids, proteins, and vitamins. 7. The method of claim 1, wherein said aromatic plants are selected from the group consisting of rose-scented geranium (Pelargonium graveolens), menthol mint (Mentha arvensis), Chamomilla recutita, Artemisia pallens, and Cymbopogon winterianus. 8. The method of claim 1, wherein said aromatic plants are rose-scented geranium (Pelargonium graveolens) or menthol mint (Mentha arvensis), said rose-scented geranium (Pelargonium graveolens) and menthol mint (Mentha arvensis) having an enhanced oil-yielding capacity. 9. The method of claim 1, wherein said other plants are selected from the group consisting of medicinal plants, oilseed crops, pulses, and food crops. 10. The method of claim 1, wherein said essential oil content in said aromatic plants is increased in an amount of from about 20% to about 46%. 11. The method of claim 1, wherein said formulation comprises DL-2 amino butyric acid, wherein said aromatic plant is Pelargonium graveolens, and wherein said essential oil content in said Pelargonium graveolens is increased by about 46% after application of said formulation. 12. The method of claim 1, wherein said formulation comprises DL-2 amino butyric acid, wherein said aromatic plant is Mentha arvensis, and wherein said essential oil content in said Mentha arvensis is increased by about 27% after application of said formulation. 13. The method of claim 1, wherein said resistance inducer is isonicotinamide or derivatives thereof. 14. The method of claim 1, wherein said derivative of salicyclic acid is selected from the group consisting of 4-chloro salicylic acid, o-Acetyl salicylic acid, amino salicylic acid, and 5-nitrosalicylic acid. 15. The method of claim 1, wherein said derivative of amino butyric acid is selected from the group consisting of DL-2 amino butyric acid and 2-amino isobutyric acid.