Rectification, definition

Historical Definition Plant-performance analysis has been defined as the reconciliation, rectification, and interpretation of plant... 

In both these approaches the excitations are not constrained to be localized on the same fragment. Consequently, basis-set superposition errors of various types occur, and there are difficulties in correcting for them. In fact, the corrections turn out to be dependent upon the basis set, and a number of techniques are proposed for the removal of these shortcomings. While the errors in the cases treated by this perturbation approach (see below) do not appear to be too serious, there is as yet no definitive procedure for their rectification . ... 

Fig. 3. A. Generalized potential energy profile of an ion channel through a membrane showing definitions of symbols used. Barriers are assumed to be symmetric and equally spaced. B. Linear decrease in barrier height from outside (OUT) to inside (IN). This can give rise to anomalous (outwardly directed) rectification in a Na+ channel. Minima are all drawn at the same level for convenience, since their heights do not affect the current-voltage relationship. C. Linear increase in barrier heights from outside to inside. This accentuates normal, inwardly directed rectification in a Na+ channel. See text.

The vapors rising through the rectifying section are completely condensed in condenser C, and the condensate is collected in accumulator D, in which a definite liquid level is maintained. Reflux pump F takes liquid from the accumulator and delivers it to the top plate of the tower. This liquid stream is called reflux. It provides the downflowing liquid in the rectifying section that is needed to act on the upflowing vapor. Without the reflux no rectification would occur in the rectifying section and the concentration of the overhead product would be no... 

Classification Unsat. alicyclic hydrocarbon Definition Volatile essential oil obtained by distillation and rectification from turpentine, an oleoresin obtained from Pinusspp., contg. pinene and diterpene Formula C,oH,6... 

CAS 8006-64-2 (steam distilled) 8052-14-0 9005-90-7 977022-00-6 (rectified) EINECS/ELINCS 232-350-7 232-688-5 UN 1299 (DOT) 1300 (DOT) FEMA 3088 Synonyms Gum turpentine Pine balsam Pine gum Purified gum spirits Spirits of turpentine Spirit of turpentine Terebenthine Turpentine gum Turpentine oil Turpentine oil, rectified Turpentine oil, rectifier Turpentine, purified Turpentine, rectified Turpentine, steam distilled Wood turpentine Classification Unsat. alicyclic hydrocarbon Definition Volatile essential oil obtained by distillation and rectification from turpentine, an oleoresin obtained from Pinus spp., contg. pinene and diterpene Formula CioHi6... 

Whereas the current-voltage characteristic of a photoconductor is linear, that of a p — n junction exhibits rectification. As shown in Fig. 2.5, the photocurrent is an additive contribution to the dark current. This has given rise to a certain confusion in terminology. By definition, the photovoltaic effect is obtained without bias, i.e., it is the open circuit voltage obtained upon... 

Furthermore, by definition, the feedstream combines with and has the same composition as the reject phase from the feed stage. Also, the permeate phase flow rate V has the same constant value for both stripping and rectification that is,... 

It discusses the definition and antiquity of the name Chymie , deals with furnaces, vessels, and fire, and in the second book with processes calcination, dissolution, sublimation, rectification, descension, exaltation, circulation, ablution, digestion, putrefaction, fermentation, extraction of essences, tinctures, etc., liquefaction, coagulation, and fixation. Arnaud recommends chemical remedies, saying that in the most obscure, difficult and dangerous maladies it is better to hazard a doubtful remedy than give nothing at all . ... 

Definition Eucalyptus oil is obtained by steam distillation and rectification of the fresh leaves or the fresh terminal branchlets of various species of Eucalyptus rich in 1,8-cineole. The species mainly used are Eucalyptus globulus Labill., Eucalyptus polybractea R.T. Baker, and Eucalyptus smithii R.T. Baker. 

Definition Essential oil obtained by steam distillation, followed by rectification at a temperature below 180°C, from the oleoresin obtained by tapping Pinus pinaster Aiton. 

Often a lot of manpower is wasted by directing efforts into the rectification of immediate causes of loss-producing events. The principle of safety definition states that the basic or root cause must be identified before a remedy is prescribed. 

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