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A corrugated structural metal plate includes longitudinally extending corrugations defined by alternating crests and valleys. Each of the crests and valleys includes longitudinally extending flat segments that are configured to reduce buckling of the plate when the plate is curved about an axis gene

A corrugated structural metal plate includes longitudinally extending corrugations defined by alternating crests and valleys. Each of the crests and valleys includes longitudinally extending flat segments that are configured to reduce buckling of the plate when the plate is curved about an axis generally transverse to its longitudinal axis.

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A corrugated structural metal plate includes longitudinally extending corrugations defined by alternating crests and valleys. Each of the crests and valleys includes longitudinally extending flat segments that are configured to reduce buckling of the plate when the plate is curved about an axis gene

A corrugated structural metal plate includes longitudinally extending corrugations defined by alternating crests and valleys. Each of the crests and valleys includes longitudinally extending flat segments that are configured to reduce buckling of the plate when the plate is curved about an axis generally transverse to its longitudinal axis. d anchored to a surface of a base substance through another material layer via chemical adsorption, the producing method comprising: the process that chemical adsorption material having a characteristic group expressed by the following chemical formula (2-1) and a --O--Si bond group at a molecular end portion thereof is at least dissolved in non-water-borne solvent, to prepare chemical adsorption solution; the process that the chemical adsorption solution is put into contact with the surface of the base substance, so that the chemical adsorption material in the chemical adsorption solution is chemically adsorbed on the surface of the base substrate; and the solution draining and drying process that the surface of the base substance to which the chemical adsorption material was bonded is cleaned by use of the non-water-borne solvent and, thereafter, the base substance is stood up in a specific direction to cut and dry the cleaning solution: 14. The producing method of an organic thin film according to claim 13, which further comprises the polarized ultraviolet irradiation process that after the solution draining and drying process, the adsorption molecules on the surface of the base substance are irradiated with polarized ultraviolet light, so that they are cross-linked to each other via a bonding line of a carbon-carbon double bond portion of the chemical formula (2-1). 15. The producing method of an organic thin film according to claim 14, wherein a series of alignment film treatment processes comprising the solution draining and the drying process and a polarized ultraviolet irradiation process are repeated a number of times in such a manner that the solution draining and drying process returns back again from the polarized ultraviolet irradiation process, and each time when repeated, the solution draining and drying direction is varied and that the polarized ultraviolet light irradiation region and polarized ultraviolet light irradiation direction, or the polarized ultraviolet light irradiation region and polarized ultraviolet light irradiation angle, or the polarized ultraviolet light irradiation region, polarized ultraviolet light irradiation direction and polarized ultraviolet light irradiation angle, are varied, whereby the adsorption molecules are varied in tilt of their major exes with respect to the surface of the base substance and/or in orientation of alignment thereof from one divided region to another of a number of divided regions into which a region corresponding to one picture element is divided in a pattern-like form. 16. The producing method of an organic thin film according to claim 13, wherein aprotic solvent is used as the non-water-borne solvent for use in cleaning, so that unreacted chemical adsorption material is cleaned and removed from the surface of the base substance by use of the aprotic solvent, to produce a thin film of a monomolecular layer form. 17. The producing method of an organic thin film according to claim 13, wherein a mixed solvent of aprotic solvent and protic solvent is used as the non-water-borne solvent for use in cleaning, so that unreacted chemical adsorption material is cleaned and removed from the surface of the base substance by use of the mixed solvent, to produce a thin film of a monomolecular layer form: 18. The producing method of an organic thin film according to claim 13, wherein the chemical adsorption material having a characteristic group expressed by the chemical formula (2-1) and a --O--Si bond group at a molecular end portion thereof is a compound expressed by the following chemical formula (2-2). 19. A liquid crystal alignment film comprising an aggregation of adsorption molecules bonded and anchored directly on a surface of a substrate forming electrodes thereon or indirectly bonded and anchored thereon through another material layer, wherein the aggregation of adsorption molecules include adsorption molecule having a characteristic group expressed by th