And determining flow. through a valve can be simple. Using the principles of flow calculations, some basic. formulas, and the effects of specific gravity and temperature, flow can be estimated well. enough to select a valve sizeâeasily, and without complicated calculations. Flow Calculation Principles. The principles of flow calculations are.
In general use, herbs are any plants used for food, flavoring, medicine, or perfume. Culinary use typically distinguishes herbs from spices.erbs can be perennials such as thyme or lavender, biennials such as parsley, or annuals like basil. Perennial herbs can be shrubs such as rosemary, Rosmarinus officinalis, or trees such as bay laurel, Laurus nobilis â this contrasts with botanical herbs, which by definition cannot be woody plants.
Rosemary (Rosmarinus officinalis) is a fragrant evergreen herb native to the Mediterranean. It is used as a culinary condiment, to make bodily perfumes, and for its potential health benefits.osemary is a member of the mint family Lamiaceae along with many other herbs, such as oregano, thyme, basil, and lavender. The name rosemary derives from the Latin ros meaning dew and marinus meaning sea - sea dew.. The herb has been hailed since ancient times for its medicinal properties.