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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.
Structural models for the gasification of high-ash char are developed from different approaches to the depiction of the char pore structure. The description of the pore structure of a high-ash char particle is based on the structural characteristics of high-ash containing coal reject char. A finite overlapping grain model (FOG), modified random pore model (MRP) and a model based on the percolation theory on Bethe lattice (PBL) are formulated. These models take into account the effect of ash content by considering it as an inactive inclusion. Comparisons of these models are present based on the parametric simulation results. It has been shown that both the MRP and PBL models can predict similar behavior of high-ash char gasification. The effect of ash content on the surface area and reaction rate evolution is shown to be signific...
A 90-125 μm sample of pulverized bagasse was charred in an ASTM volatile matter test, and the char combustion kinetics were evaluated by DTG. In the temperature range 450-550 °C, the combustion reaction occurred in regime II, with a Thiele modulus ranging from 470 to 3100. The activation energy was 180 kJ mol-1 and the reaction order with respect to oxygen was 0.65. These kinetic parameters are similar to those of low-rank coal.
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...
In order to study the influence of anthracite, char, coke and graphite microstructures on reactivity, a thermogravimetry experiment was carried out for these carbons at 1200 °C. As a comparison, some experiments were conducted at 1600 °C. The microstructure of anthracite, char, coke and graphite after treatment was depicted by SEM. The results showed that reaction of char 1, CA 3 and coke 5 in CO gas at 1600 °C led to a large, smooth pore structure, in contrast to the carbons' reaction at 1200 °C. The porosity of all carbons increased with reaction time and the porosity of graphite was far less than the other carbons. Besides, the variation of porosity determined the value of the reactivity. An appropriate carbon type can be chosen based upon reactivity for pulverized coal injection in a blast furnace.
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...