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CHAR PLOT is a routine which enables one to use the CalComp plotter as a versatile output device. It is presently available as CHPLOT BIN (English CHAR PLOT) on tape MS 3. The program CHAR PLOT is normally called by a PUSHJ P, PL:OTC with a code representing a command or character (as defined in Appendix I) in accumulator C. Upon calling, the routine will either plot a character or line, or perform an internal control function. A O code initializes the routine, erasing any unexecuted (buffered) commands.
CHAR PLOT is a routine which enables one to use the Calcomp plotter as an output typewriter. This program is stored as CHPLOT BIN [English CHAR PLOT]. In use a code, representing a character of command as defined in Appendix I, is placed into accumulator C. Upon calling the routine the plotter will, either print a character, or set itself into one of several modes. The input to the routine is a word whose 8 low order bits contain a code and whose sign bit must be 0. The routine is entered by MOVE C, [WORD], PUSHJ P, PLOTC. A word=O stops everything and initiates the system. Note: The program starts off in lower case mode. While it is in this mode any attempt to issue a lower-case code causes the computer to hang up. It is suggested that the first call be used to set the routine to upper case and the 8th bit in the code used to shift be...
A retired dentist reviews his family life, education in Nebraska, and dental practice in China, and in Honolulu at Palama Settlement's Strong-Carter Clinic and in private practice. He also discusses purchasing the Char Professional Center building site.
Char offre une écriture des éléments, de l'élémentaire, et aussi une écriture élémentaire. Le fond n'y est jamais totalement mis en ordre, intégré dans un code. « L'irréductible en sous-œuvre et sa mouvante densité qui se projette, ouvre la voie à tous les possibles, déroule ceux-ci en méandres, laisse libre cours à d'imprévisibles tangences » (« Flux de l'aimant », Œuvres Complètes, p. 693). L'élémentaire va à l'encontre d'une métaphysique de la substance ou de l'essence : l'élément subit des actualisations transitoires et des remaniements constants. Les éléments du poème sont insurgés, un atome y résiste toujours. Le poème avance comme un espace non isotrope mais fait de trous, ou qui se tient par les trous, les zones indéterminées, et qui isole les éléments, finalement irréductibles. La déliaison autorise toutes les combinaisons, ex...
The high amounts of solid waste produced in industrial installations and in urban centers is a complex problem of today's society. The traditional strategies for solid waste transformation and disposal include and filling or incineration. Other approaches are being exploited namely waste selective collection and recycling on the energetic valorization of solid wastes through pyrolysis. In the pyrolytic process, the wastes are converted into a gaseous and liquid phase that can be used in energy production or as feedstock in chemistry industries. A solid residue (char) is also produced in a proportion that depends on the pyrolysis conditions. Even when the operating condiions are optimized in order to minimize the solid fraction, a resonable amount of chars are obtained. Those chars are mainly composed of a carbon-rich matrix that conta...
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Knowledge about ignition processes of coal in fluidized beds is of importance for the start-up and dynamic control of these combustors. Initial experiments in a transparent fluidized bed scale model showed the existence of a considerable induction period for the ignition of char, especially at low bed temperatures (e.g., 800–950K for bituminous coal). This paper focuses on char-ignition delay at these low temperatures. It is shown that temperature rise during ignition is not caused by coal particle diameter shrinkage but rather by an increase in reactivity. Analysis of the thermal ignition process leads to the conclusion that the process is noncritical, causing a gradual temperature rise without Semenov Jump. Consequences of this result for future research are expounded. Calculated values of the maximum inclination of the heat generati...
Gasification of large char particles with CO2 and H2O has been investigated both experimentally and with model studies. A local volumetric rate model is derived that takes into account the chemical reaction rate and the effective diffusivity being a function of the local carbon conversion and therefore a function of time and position within the particle. The model includes shrinking unreacted core and homogeneous reaction as extreme cases. Chemical reaction rates of powdered deal wood char were measured for different CO2 and/or H2O concentrations (0.05 - 2 mol/m3) and as a function of the carbon conversion and temperature (1073 - 1273 K) by means of a modified thermobalance. In separate single particle tests the effective diffusivity has been determined for different carbon conversions. A specially designed single particle reactor has ...
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