摘要:
New, substituted, 2,6-diaminopyrimidines are disclosed. These compounds are useful as anti-malarial agents. The oxygenation of pyrimethamine by fungi is also disclosed.
摘要:
A method for displaying objects in a CAD system, and corresponding CAD system and computer program product. The method includes loading a graphic model with a plurality of model elements including edges and faces in a CAD system and receiving a selection of a display technique to be used on the graphic model. The method also includes classifying each model element as important or unimportant. The method also includes hiding a first subset of the unimportant model elements according to the selected display technique and adjusting the transparency of a second subset of the unimportant model elements according to the selected display technique, so that the important model elements are clearly visible with relation to the unimportant model elements. The method can produce a simplified graphic model that is displayed by the CAD system.
摘要:
The preparation of the methyl esters of 16-keto prostaglandin E.sub.2 and 15-epi-16-keto prostaglandin E.sub.2 is described. The compounds have hypotensive activity.
摘要:
Compounds of the formula:L-p-Glu-L-His-L-Trp-L-Ser-L-Tyr-X-Y-L-Arg-L-Pro-NHC.sub.2 H.sub.5in which X is D-Trp or D-2-(1,4-cyclohexadienyl)Gly Y is L-(N-methyl)-Leu or L-(N-methyl)-ILe or a non-toxic acid addition salt thereof, are potent ovulation inducers and claudogenic-interceptive agents useful in preventing or terminating pregnancy in mammals.
摘要:
Polyvinyl alcohol based sizing solution containing a small amount of quaternary (e.g., dialkyldimethyl) ammonium salt or quaternary imidazolinium salt additives provide good operability during application and weaving and results in fabric having improved finishing performance.
摘要:
An improved warp size for filament yarn is provided consisting essentially of polyvinyl alcohol, alkyl phenoxy (or cresoxy) ethoxyethyl dimethylbenzyl ammonium chloride and a plasticizer such as glycerol or urea, which when applied to filament yarn from aqueous solution provides excellent weaving efficiency and ease of removal combined with low shedding in the loom.
摘要:
A method for displaying objects in a CAD system, and corresponding CAD system and computer program product. The method includes loading a graphic model with a plurality of model elements including edges and faces in a CAD system and receiving a selection of a display technique to be used on the graphic model. The method also includes classifying each model element as important or unimportant. The method also includes hiding a first subset of the unimportant model elements according to the selected display technique and adjusting the transparency of a second subset of the unimportant model elements according to the selected display technique, so that the important model elements are clearly visible with relation to the unimportant model elements. The method can produce a simplified graphic model that is displayed by the CAD system.
摘要:
The compounds of the formula ##STR1## in which R is hydrogen, halogen, alkyl, alkoxy, hydroxyl, nitro or cyano; andR.sup.2 is .dbd.O, .dbd.S, H.sub.2, --SCH.sub.3, or an amino group; with the proviso that when R is chloro in 8-position, R.sup.2 must be other than oxygen or sulfur; or a pharmaceutically acceptable salt thereof.
摘要:
An improved warp size for filament yarn is provided consisting essentially of polyvinyl alcohol, urea, and mono- and di-saccharides, such as sucrose, which when applied to filament yarn from aqueous solution provides excellent abrasion resistance, low shedding, freedom from skinning, and outstanding ease of removal.
摘要:
New blends of fluorinated thermoplastic elastomers are disclosed that contain a two-phase composition including a continuous phase of a melt processible crystalline thermoplastic fluorocarbon resin and a dispersed phase of an amorphous crosslinked fluoroelastomer, and a dispersion-process-produced, non-fibrillating, non-melt-processible polytetrafluoroethylene (PTFE) powder. The PTFE copolymer is made up of recurring units of hexafluoropropylene, perfluoro(alkyl vinyl ether) wherein the alkyl group has 1-4 carbon atoms, and mixtures thereof. The PTFE compounds uniformly with the two-phase composition without forming visible agglomerates. Poly(phenylene sulfide) powder can be added to the blend to increase melt flow characteristics. Additionally, an uncured fluoroelastomer can be incorporated into the blend to enhance its mechanical properties. The preparation of the fluorinated thermoplastic elastomers involves dynamic curing of the fluoroelastomer in the presence of the molten thermoplastic fluorocarbon resin and the non-melt-processible PTFE resin.