Rate of injection

The furnace process involves injecting low end fraction of cmde oil, eg. Bunker Euel C, into a heated chamber. The temperature, shape of the injectors of the oil, rate of injection, and other factors are controlled to produce black fillers of different particle si2e and stmcture. The particle si2e and stmcture control the reinforcing character of the carbon black. There are 30 common grades of carbon black used in the mbber industry. There are numerous specialty grades produced, and several hundred are used in plastic, conductive appHcations, and other uses. 

Time, pressure, and temperature controls indicate whether the performance requirements of a molded product are being met. The time factors include the rate of injection, duration of ram pressure, time of cooling, time of piastication, and screw RPM. Pressure requirement factors relate to injection high and low pressure cycles, back pressure on the extruder screw, and pressure loss before the plastic enters the cavity which can be caused by a variety of restrictions in the mold. The temperature control factors are in the mold (cavity and core), barrel, and nozzle, as well as the melt temperature from back pressure, screw speed, frictional heat, and so on in the plasticator. 

Most common Gastrointestinal upset, anxiety, insomnia Less common Hyperglycemia, facial flushing,euphoria, perineal itching or burning (with dexamethasone, probably secondary to vehicle and rate of injection)... 

Where q = stable injection rate of injection well, Mr = % tracer recovered, and Q = stable production rate. 

Bolus versus Infusion. Technically, for all the parenteral routes (but in practice only for the IV route), there are two options for injecting a material into the body. The bolus and infusion methods are differentiated on the single basis of rate of injection, but they actually differ on a wide range of characteristics. 

The transportation of C02 by sea necessitates the construction of temporary storage facilities at the points of loading and at the injection points, depending on the rate of injection into the storage well. 

The injection principle and the somewhat higher fragility of the system may lead to higher variations in results and higher failure rates of injections when working in a controlled quality environment. 

The viscosity of contrast agent solutions determines the maximal rate of injection. Since in some techniques, e.g. angiography or CT, extremely high injection rates are mandatory (up to 20 mb s ), the viscosity of the preparation might be a limiting factor. Side-effects related to high viscosity, on the other hand, have not been determined unequivocally. 

Drugs are administered to animals by parenteral or enteral administration, and topical application. Parenteral administration bypasses the alimentary tract and can be effected by a variety of routes including intravenous, intramuscular, subcutaneous, intraperitoneal, or intrapleural injections inhalation and percuta-neously. In intravenous injections, entry of dmgs into the system depends only upon the rate of injection and not on absorption into the bloodstream. As a result, water-soluble poorly absorbed drugs may be readily administered. 

The effect of aromatic amines, however, has been the subject of much controversy. Thus, according to Qrollier-Baron and Wessels [14] the addition of 10% aniline to petrol has no obvious influence on the length of the induction period. E.g. if nitric acid containing 4% potassium dichromate is used with petrol containing 10% aniline at 620°C, and a rate of injection is 10.3 m/sec, the induction period is 3.3 millisec at a rate of injection of 5.3 m/sec it is 24 millisec. 

Injection of NO, by SST s. Johnston (543) and others have calculated ihat 500 Boeing SST s would at least double the rate of injection of NO into Hie stratosphere over the natural rate of coming from the photolysis of N20. 

Intravenous administration of a drug achieves rapid onset of drug action. For this reason IV lines are routinely established in many emergency rooms and inpatient situations (e.g., unconsciousness) in order to establish a permanent portal for drug injection. While IV injection achieves rapid action it also must be used with discretion for several reasons (1) administration is irreversible (2) if the rate of injection is... 

Youngs EJ. Rate of injection and nenrotoxicity of spinal lidocaine. Anesthesiology 1999 90(l) 323-6. 

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