Abstract: The invention relates to a real-world simulation device suitable for being installed in a computer designed to support a multitask programming environment (23). The device comprises a simulation manager (30), capable of working in asynchronous chaotic mode by repetitive sequences (31) on distinct simulation elements (40-70). Each simulation element works with at least one space/time datum, termed the structure point. A space/time datum includes a property datum, defining a current state of the structure point, and designates a function, applicable for modifying this current state. Said simulation manager (30) comprises two coupled simulation sections, namely a first and a second section, that are designed to simulate respectively a fluid medium and a solid body in the presence of said fluid medium.

Abstract: An automatic traction control system is provided for an electric or hybrid-electric vehicle. The automatic traction control system may be used with vehicles using two separately excited motors where the armatures of the motors are connected in series to provide differential control. The automatic traction control system monitors and compares the voltages across the armatures of the two motors. If the voltage differential exceeds a predetermined threshold, it is determined that one of the wheels is spinning and current is diverted from the motor driving the spinning wheel to the motor driving the non-spinning wheel.

Abstract: An automatic traction control system is provided for an electric or hybrid-electric vehicle. The automatic traction control system may be used with vehicles using two separately excited motors where the armatures of the motors are connected in series to provide differential control. The automatic traction control system monitors and compares the voltages across the armatures of the two motors. If the voltage differential exceeds a predetermined threshold, it is determined that one of the wheels is spinning and current is diverted from the motor driving the spinning wheel to the motor driving the non-spinning wheel.

Abstract: A computer supporting an active object program in a multi-purpose mode comprises a device (D) for simulating the time evolution of a medium.

Abstract: A computer to permit programming by active objects in multi-task mode, representative of systems for simulation, includes a device for real world simulation.

Abstract: Color photographic motion picture elements adapted to form a multicolor photographic dye image and an integral, infrared-absorbing, dye sound track and comprising 1-hydroxy-2-N-(5-alkyl-thiazol-2-yl)-naphthamide couplers that are capable of forming quinone imine dyes absorbing infrared radiation in the spectral range from about 600 to about 1000 nm by reaction with an oxidized aromatic primary amino developing agent, the thiazol-2-yl group of said naphthamide couplers bearing a 4-para-C.sub.1 -C.sub.4 alkoxyphenyl group or a 4-para-C.sub.1 -C.sub.4 alkylphenyl group, the hydrogen atoms of said C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4 alkyl being unsubstituted or at least one of them having been substituted by a halogen atom.

Abstract: A bucket using a box-like parallel-sided basket open at the front for dredging the sea bottom to collect nodules. The basket has a bottom wall with front and rear cross-bars and a plurality of parallel spaced rods extending longitudinally of the basket between the front and rear cross-bars. A front part of the bottom wall includes a grill formed by a transverse front link supporting one end of a plurality of longitudinal spaced flexible elements which are inclined downwardly towards the front and stretched between the front cross-bar and the transverse front link. Large shoes are positioned on lateral sides of the basket for supporting the bucket on the sea bottom. The grill is situated between the shoes with the transverse front link positioned in such manner that it penetrates the sea bottom. The basket is positioned inside the shoes and extends to the external edges of the shoes. The shoes include brackets for connecting a dredging line to the bucket.

Abstract: A guide is provided for the buckets of an endless dredging line comprising an emptying station incorporated into the guide. A system comprising a pair of trolleys and a pulley system is provided to hold each bucket stationary at the emptying station for dumping. The endless line travels over the pulleys, some of which are mounted on the trolleys. When a bucket approaches the emptying station, the trolleys are actuated to travel in opposite directions so as to allow the endless line to move at its normal speed while holding the bucket at the dumping station stationary.

Abstract: A class of 4-hydroxy-3-nitrocarbostyril derivatives are useful in the inhibition of certain types of antigen antibody reactions.

Abstract: A novel class of 3-tetrazole coumarins have anti-allergic activity. They are prepared by the action of ammonium azide on 3-cyano compounds.

Abstract: 3-Carboxyisocoumarins, 2-thiaisocoumarins and related isocarbostyrils are useful anti-allergic agents. Several of these compounds are novel, and a process for their preparation is provided.

Abstract: Compounds of the formula ##STR1## and pharmaceutically acceptable, nontoxic salts thereof or hydrates thereof, wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each hydrogen, halogen, lower alkyl or lower alkoxy, or any two of the groups R.sub.1, R.sub.2, R.sub.3 and R.sub.4, taken together with the carbon atoms to which they are joined complete a substituted or unsubstituted carbocyclic ring, and X is an oxygen atom, provided that R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are not all simultaneously hydrogen, are useful for treating allergic conditions in humans.The compounds may be prepared by reacting a suitably substituted benzene derivative with an activated carbonyl group having a carbanion of the formula NC-CH-R, wherein R is a carboxylic acid ester group, and thereafter, if desired, converting the compound into a salt.

Abstract: A class of 4-hydroxy-3-nitro-.alpha.-pyridones have anti-allergic activity.

Abstract: Substituted naphthoquinones of the formula (I) and pharmaceutically acceptable salts thereof wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represent alkyl, aryl, alkoxy, hydroxy, hydrogen or halogen or any two of the groups R.sub.1, R.sub.2, R.sub.3 and R.sub.4 taken together complete a carbocyclic ring, have useful anti-allergy activity in mammals.

Abstract: Substituted naphthoquinones of the formula (I) and pharmaceutically acceptable salts thereof wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represent alkyl, aryl, alkoxy, hydroxy, hydrogen or halogen or any two of the groups R.sub.1, R.sub.2, R.sub.3 and R.sub.4 taken together complete a carbocyclic ring, have useful anti-allergy activity in mammals.

Abstract: Pharmaceutical compositions are produced comprising as the active ingredient a compound of the formula ##STR1## or a pharmaceutically acceptable, nontoxic salt thereof or hydrate thereof, wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each hydrogen, halogen, lower alkyl or lower alkoxy, or any two of the groups R.sub.1, R.sub.2, R.sub.3 and R.sub.4, taken together with the carbon atoms to which they are joined complete a substituted or unsubstituted carbocyclic ring, and X is a bond or an oxygen atom, is combined with a pharmaceutically acceptable, nontoxic inert diluent or carrier. Those compounds wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are not all simultaneously hydrogen are novel.When X is a bond, the compounds may be prepared by reacting an appropriately substituted 3-dyanomethylene phthalide with a base and, thereafter, if desired, converting the compound to a salt.

Abstract: Pharmaceutical compositions having anti-allergy activity in which the active anti-allergy agents are certain 3-nitro-.alpha.-pyridones and their pharmaceutically acceptable salts formulated in one or more pharmaceutically acceptable carriers.

Abstract: A pharmaceutical composition is produced which is useful for treating allergic conditions in humans which comprises an anti-allergenic amount of a compound of the formula: ##SPC1##Or a pharmaceutically acceptable salt or ester thereof, wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different and each is hydrogen, alkyl, alkoxy, aryl, aralkyl or halogen or any two of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 taken together, with the carbon atoms to which they are attached, form a phenyl, cyclohexyl or cyclohexenyl ring, in combination with a pharmaceutically acceptable carrier.

Abstract: Substituted .omega.-nitroacetophenones and their preparation and intermediates therefor are described together with pharmaceutical compositions containing such nitroacetophenones for the prophylaxis and treatment of diseases associated with allergic or immunological reactions such as asthma, hayfever and rhinitis.

Abstract: 3-Carboxyisocoumarins, 2-thiaisocoumarins and related isocarbostyrils are useful anti-allergic agents. Several of these compounds are novel, and a process for their preparation is provided.