Primary Growth

Controlled crystal growth also involves a functional relationship between heat treatment and the properties of the glass-ceramic such as the linear thermal expansion coefficient and optical properties. By using fundamental theories of optical spectroscopy on P-spodumene 

The recognition and analysis of the relationship between crystal growth and material properties have formed a basis for demonstrating how a normal growth process can be used to develop specific properties. 

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Wilman, D. and Altimimi, M.A.K. (1982) The digestibility and chemical composition of plant parts in Italian and perennial ryegrass during primary growth. Journal of the Science of Food and Agriculture, 33, 595-602. 

Vesicles containing small numbers of separate rosettes have been found in the cytoplasm of Micrasterias during primary growth,367 suggesting that microfibril-synthesizing units are assembled in cytoplasmic membranes, and are incorporated into the plasma membrane by similar mechanisms during primary- and secondary-wall formation. 

ProtoNEMA (PI. PROTONEMATA) The primary growth or thalloid stage of the gameto-phyte in mosses. 

Longitudinal growth (primary growth), which takes place in the early season, proceeds at the end of the stem, branches and roots. The growth points are located inside the buds, which have been formed during the preceding autumn. 

Bark can roughly be divided into living inner bark or phloem and dead outer bark or rhytidome. The tissues of the bark substance are formed either by primary or secondary growth. The primary growth means direct production of embryonal cells at the growing points of the stem apex and their further development to primary tissues. Epidermis, cortex, and primary phloem are primary tissues (Fig. 6-1). The formation of secondary tissues... 

Cationic surfactants tend to be specialty items that are tailored for diverse uses such as germicides, textile applications, corrosion inhibitors, and fabric softeners. Their primary growth has been in fabric softeners for home laundry detergents. Because cationics are antistatic agents, they perform well in removing static charges associated with synthetic fabrics. 

Pig. 61.—Photomicrograph of a transverse section of a California Privet root of primary growth showing epidermis (e) hypodermis (A) cortex (c) endodermis (en) pericambium (p) a xylem arm of the radial bundle (f) and pith (m). 

The section you have just studied illustrated in general the appear- ance of any Dicotyl root of primary growth. 

Cor tex.—That region in dicotyl and gymnosperm roots of primary growth and in roots and stems of monocotyledons between epidermis and endcdermis, in dicotyl and gymnosperm roots of secondary growth or in barks between cork cambium and phloem. 

In order to produce SiC material of the level of quality required for device applications, chemical vapor deposition (CVD) is currently used as the primary growth technique for SiC epitaxy [2], Due to the continuous improvements in commercial substrate quality, the presence of micropipes in SiC epilayers is not the device yield limiting issue as it was a decade ago. However, the epitaxially grown SiC films still suffer from other extended defects such as basal plane and threading edge dislocations as well as point defects. The vision of growing SiC on porous SiC was to reduce the concentration of these defects and thus improve the epitaxial layer quality for device applications. 

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