摘要:
In some embodiments, the present invention pertains to a method for conjugating a first compound to a second compound wherein the conjugation involves an electrophilic moiety. The method comprises reacting the first compound with the second compound to form a conjugate. The improvement in embodiments of the present invention comprises adding a nucleophilic reagent to the conjugate wherein the nucleophilic reagent forms a neutral product upon reaction with unreacted electrophilic moieties of the conjugate. In some embodiments, the nucleophilic reagent is substantially non-reactive with disulfide bonds in the event that the conjugate comprises disulfide bonds. The conjugate formed is doubly deactivated because the other moiety for linking to the electrophilic moiety is also deactivated.
摘要:
In some embodiments, the present invention pertains to a method for conjugating a first compound to a second compound wherein the conjugation involves an electrophilic moiety. The method comprises reacting the first compound with the second compound to form a conjugate. The improvement in embodiments of the present invention comprises adding a nucleophilic reagent to the conjugate wherein the nucleophilic reagent forms a neutral product upon reaction with unreacted electrophilic moieties of the conjugate. In some embodiments, the nucleophilic reagent is substantially non-reactive with disulfide bonds in the event that the conjugate comprises disulfide bonds. The conjugate formed is doubly deactivated because the other moiety for linking to the electrophilic moiety is also deactivated.
摘要:
A method and system for performing continuous (real-time) physics based prognostics analysis as a function of actual engine usage and changing operating environment. A rule-based mission profile analysis is conducted to determine the mission variability which yields variability in the type of thermal-mechanical loads that an engine is subjected to during use. This is followed by combustor modeling to predict combustion liner temperatures and combustion nozzle plane temperature distributions as a function of engine usage which is followed by off-design engine modeling to determine the pitch-line temperatures in hot gas path components and thermodynamic modeling to compute the component temperature profiles of the components for different stages of the turbine. This is automatically followed by finite element (FE) based non-linear stress-strain analysis using an real-time FE solver and physics based damage accumulation, life consumption and residual life prediction analyses using microstructural modeling based damage and fracture analysis techniques.
摘要:
A method and system for performing continuous (real-time) physics based prognostics analysis as a function of actual engine usage and changing operating environment. A rule-based mission profile analysis is conducted to determine the mission variability which yields variability in the type of thermal-mechanical loads that an engine is subjected to during use. This is followed by combustor modeling to predict combustion liner temperatures and combustion nozzle plane temperature distributions as a function of engine usage which is followed by off-design engine modeling to determine the pitch-line temperatures in hot gas path components and thermodynamic modeling to compute the component temperature profiles of the components for different stages of the turbine. This is automatically followed by finite element(FE) based non-linear stress-strain analysis using an real-time FE solver and physics based damage accumulation, life consumption and residual life prediction analyses using microstructural modeling based damage and fracture analysis techniques.
摘要:
In some embodiments, the present invention pertains to a method for conjugating a first compound to a second compound wherein the conjugation involves an electrophilic moiety. The method comprises reacting the first compound with the second compound to form a conjugate. The improvement in embodiments of the present invention comprises adding a nucleophilic reagent to the conjugate wherein the nucleophilic reagent forms a neutral product upon reaction with unreacted electrophilic moieties of the conjugate. In some embodiments, the nucleophilic reagent is substantially non-reactive with disulfide bonds in the event that the conjugate comprises disulfide bonds. The conjugate formed is doubly deactivated because the other moiety for linking to the electrophilic moiety is also deactivated.
摘要:
In some embodiments, the present invention pertains to a method for conjugating a first compound to a second compound wherein the conjugation involves an electrophilic moiety. The method comprises reacting the first compound with the second compound to form a conjugate. The improvement in embodiments of the present invention comprises adding a nucleophilic reagent to the conjugate wherein the nucleophilic reagent forms a neutral product upon reaction with unreacted electrophilic moieties of the conjugate. In some embodiments, the nucleophilic reagent is substantially non-reactive with disulfide bonds in the event that the conjugate comprises disulfide bonds. The conjugate formed is doubly deactivated because the other moiety for linking to the electrophilic moiety is also deactivated.