摘要:
Bicyclic compounds useful in the prophylaxis and treatment of allergic diseases, pharmaceutical compositions containing the same, methods of administration of the compositions, intermediates useful in preparing the compounds and conversion of the intermediates to the bicyclic compounds. Examples of compounds are substituted coumarins and indanediones and their pharmaceutically acceptable salts.
摘要:
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.
摘要:
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.
摘要:
A cavitation device is used to reduce the water content of used or wastep solutions and slurries, including oil well fluids and muds, solution mining fluids, industrial oil/water emulsions, and other used or wastep aqueous industrial fluids. A main reason for reducing the water content of such fluids is to facilitate their disposal or reuse. Thermal energy from the steam and vapor produced by the non-scaling cavitation device is recycled in steam turbines or piston expander engines, or otherwise facilitates evaporation through a membrane or condensation to useful fresh water; the efficiency of the process can be enhanced by mechanical vapor recompression.
摘要:
Reservoir characterization based on observations of displacements at the earth's surface. One method of characterizing a reservoir includes the steps of: detecting a response of the reservoir to a stimulus, the stimulus causing a pressure change in the reservoir; and determining a characteristic of the reservoir from the response to the stimulus. The response may be the pressure change which varies periodically over time, or a set of displacements of a surface of the earth. In another example, a method includes the steps of: detecting a set of displacements of the earth's surface corresponding to a pressure change in the reservoir; and determining a characteristic of the reservoir from the surface displacements. In yet another example, a method includes the steps of: detecting a set of displacements of the earth's surface corresponding to a change in volume of the reservoir; and determining a characteristic of the reservoir from the surface displacements.
摘要:
A method of fusing a joint between two bones, comprising boring a hole through one of the bones across the joint therebetween and into the other bone, placing the leading end of a screw into the hole, where the screw has a threaded region having a pitch that is larger toward a leading end of the screw and smaller toward a trailing end of the screw, and driving the screw into the bone until the threaded region spans the joint.
摘要:
A separating system for separating a fluid mixture incorporates a smart surface having reversibly switchable properties. A voltage is selectively applied to the smart surface to attract or repel constituents of a fluid mixture, such as oil and water produced from a hydrocarbon well. The smart surface can be used in a conditioner to increase droplet size prior to entering a conventional separator, or the smart surface and other elements of the invention can be incorporated into an otherwise conventional separator to enhance separation. In a related aspect, a concentration sensor incorporating smart surfaces senses concentration of the fluid mixture's constituents.
摘要:
Provided are trnasgenic plants comprising cells transformed or transfected with a recombinant DNA construct containing a coding sequence which encodes phytochrome A, which when expressed, causes the stimulation of phytochrome A and confers upon said plant the ability to undergo proximity-conctitional dwarfing Also provided are a recombinant DNA construct containing a coding sequence encoding phytochrome A, which when expressed, is effective in conferring the trait of proximity-conditional dwarfing on plants comprising cells transformed ar tansfected with this construct, a method for conferring proximity-conditional dwarfing upon plants, transgenic plants produced by this method, and seeds obtained by growing such plants.
摘要:
An attachment assembly for securing large excavation teeth on large earth excavation equipment including an excavation tooth, an adaptor having a tapered nose piece at one end thereof for carrying the tooth and defining means rearwardly of the nose piece for securing the adaptor to the excavation implement, a pin for securing the tooth in place on the nose piece and a wear cap adapted to be carried by an engage the adaptor so as to abut a rear portion of the tooth for reducing wear of the adaptor during use. The wear cap defines a forward tooth abutment surface, a first inclined lower surface adapted to abut a first portion of the adaptor rearwardly of the nose piece, a second inclined lower surface spaced from the first inclined lower surface and adapted to abut a second portion of the adaptor and an opened channel disposed between the first and second inclined surfaces and extending transversely through the wear cap. The channel defines a continuously curvilinear transverse inner wall within the wear cap and is adapted to receive a correspondingly configured transversed rib formed on the adaptor such that upon transversely sliding of the wear cap over the rib, the first and second lower inclined surfaces abut the first and second portions of the adaptor and the forward tooth abutment surface of the wear cap is disposed substantially normal to the tooth. The tooth abutment surface defines a pair of locking projections thereon which are received in a pair of similarly configured channels formed in the base of the excavation tooth to interlock the tooth and wear cap and prevent relative lateral movement therebetween.
摘要:
Compounds of formula (I): ##STR1## wherein R is hydrogen, halogen, C.sub.1-4 alkyl or C.sub.1-4 alkoxy; R.sub.1 is hydrogen or C.sub.1-6 alkyl; and n is 1 to 6 and pharmaceutically acceptable salts thereof; pharmaceutical compositions containing them; a process for their preparation; and their use in treating allergy.