摘要:
Anfractuous cellulose fibers exhibiting exceptional high bulking properties are produced by treatment of dry hammermilled wood cellulose fibers with anhydrous liquid ammonia at substantially atmospheric pressure. Fibrous webs of enhanced bulk are produced by preparing an aqueous furnish comprising at least ten percent by weight ammonia treated anfractuous fibers in admixture with conventional papermaking fibers.
摘要:
A system for evaluating tolerance to high acceleration as a function of visual field perimeter and psychomotor tracking ability. A semicircular array of light-emitting diodes (LED's) subtend the lateral field of view of a subject. Pairs of opposed LED's are sequentially illuminated inwardly or outwardly at a programmed rate. A control stick manipulated by the subject provides a nulling signal for maintaining a desired pair of LED's illuminated.
摘要:
Liquid ethylene is used to cool the hot froth in the high pressure separator. This prevents the thermal degradation that occurs during the transition from the reactor to pelletizing. Low density polyethylene with superior physical properties is the result.
摘要:
Briefly, in accordance with one or more embodiments, a transparent overlay of available dropzones may be displayed to assist a user in determining a new configuration for a document utilizing drag and drop.