Abstract: A virtual fabrication environment for semiconductor device fabrication that includes an analytics module for performing key parameter identification, process model calibration and variability analysis is discussed.

Abstract: A virtual fabrication environment for semiconductor device fabrication that includes an analytics module for performing key parameter identification, process model calibration and variability analysis is discussed.

Abstract: A virtual fabrication environment for semiconductor device fabrication that includes an analytics module for determining specification limits using a fitting algorithm for non-normally distributed virtual metrology data is discussed.

Abstract: A virtual fabrication environment for semiconductor device fabrication that includes an analytics module for performing key parameter identification, process model calibration and variability analysis is discussed.

Abstract: A virtual fabrication environment for semiconductor device fabrication that includes an analytics module for performing process window optimization is discussed.

Abstract: A virtual fabrication environment for semiconductor device fabrication that includes an analytics module for performing key parameter identification, process model calibration and variability analysis is discussed.

Abstract: A method predicts at least one property of a candidate molecule. A set of reference molecules is classified as either possessing or not possessing at least one property. A subset of the molecules is selected from which a plurality of marker molecules is chosen. The marker molecules are used to predict whether the candidate molecule possesses at least one property.

Abstract: The polar surface area of molecules is computed without reference to three dimensional molecular structures using a linear equation incorporating counts of nitrogens, oxygens, and related atom clusters. Methods and systems for predicting intestinal absorption and blood brain barrier penetration of candidate compounds use the polar surface area and the octanol/water partition coefficient as descriptors.

Abstract: The polar surface area of molecules is computed without reference to three dimensional molecular structures using a linear equation incorporating counts of nitrogens, oxygens, and related atom clusters. Methods and systems for predicting intestinal absorption and blood brain barrier penetration of candidate compounds use the polar surface area and the octanol/water partition coefficient as descriptors.

Abstract: The polar surface area of molecules is computed without reference to three dimensional molecular structures using a linear equation incorporating counts of nitrogens, oxygens, and related atom clusters. Methods and systems for predicting intestinal absorption of candidate compounds use the polar surface area and the octanol/water partition coefficient as descriptors.

Abstract: A method predicts at least one property of a candidate molecule. A set of reference molecules is classified as either possessing or not possessing at least one property. A subset of the molecules is selected from which a plurality of marker molecules is chosen. The marker molecules are used to predict whether the candidate molecule possesses at least one property.

Abstract: The polar surface area of molecules is computed without reference to three dimensional molecular structures using a linear equation incorporating counts of nitrogens, oxygens, and related atom clusters. Methods and systems for predicting intestinal absorption of candidate compounds use the polar surface area and the octanol/water partition coefficient as descriptors.

Abstract: A gas dynamic laser is formed having a combustor with a cylindrical combustion chamber, said combustion chamber is formed having a discharge opening at one end and primary injection means at the other end with a plurality of injector tubes for injecting a combustible mixture into said combustion chamber; an igniter is included for igniting said mixture; a secondary injection means is located adjacent the discharge opening and has a plurality of nozzle tubes for injecting an oxidizer, one nozzle tube being included for each injector tube; each cooperating nozzle tube and injector tube being axially aligned, with said nozzle tubes directing the oxidizer towards the injector tubes, a mixing chamber being located downstream of the secondary injection means for directing the gases to a nozzle array. The secondary injection means is constructed to have easy accessibility to the nozzle tubes.

Abstract: A thrust augmentor for a turbofan, gas turbine engine is disclosed. Techniques for mixing and burning dissimilar density gases in a thrust augmentor are developed. In accordance with one specific teaching the flame front in a swirl augmentor is stabilized by a continuously operative pilot burner. The pilot burner is positioned in the radially outward portion of the augmentor.

Abstract: A laser combustor apparatus for a chemical laser including an injector and transition manifold wherein the injector has a barrier area located between the oxidizer plenum and fuel plenum and a coolant area is located between the fuel plenum and a porous injector face plate, said barrier area and coolant area being connected by a restricted passage to control the pressure in the barrier area maintaining it higher than that in the oxidizer or fuel plenum. The combustor and manifold form a T-shape and have a liner fixed therein with a spaced relationship into which a diluent is placed for a purge thereof to keep combustion products from getting behind the liner.