Douglas A Mackay, 46San Mateo, CA

2013021, Aug 22, 2013

Feb 22, 2012

13/401922

David W. Cummings - Round Rock TX, US
Douglas A. MacKay - Austin TX, US
Vasantha R. Vuyyuru - Round Rock TX, US

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY

G06F 21/00

703 21

Embodiments of the present invention provide a system, method, and program product for accelerating a simulated memory walking sequence during a simulation conducted by a computer. In one embodiment, a simulation test-case is executed and one or more memory locations in the simulated memory are identified as eligible to contain valid data. Subsequent to commencement of the simulated memory walking sequence, it is determined whether an identified memory location is within a specified number of memory locations after a memory location to be processed by simulated hardware during the simulated memory walking sequence. If an identified memory location is within the specified number, the simulated hardware is allowed to process the memory location. If an identified memory location is not within the specified number, the simulated hardware is advanced to a subsequent memory location and is allowed to process the subsequent memory location.

5605634, Feb 25, 1997

Apr 24, 1995

8/426966

Ryan D. Wilson - Kitchener, CA
Douglas M. Mackay - Stanford CA

University of Waterloo

C02F 100

210747

The system places traces of nutrients and other treatment substances in the ground, in the path of an on-coming plume of contaminated groundwater. Boreholes placed across the plume contain respective diffusion tubes, the tubes being of e. g LDPE, or dialysis tubing. The remediation substance is circulated (pumped) through the diffusion tubes periodically. The remediation substance diffuses through the LDPE into the water in the borehole, and thence into the plume and is carried into the aquifer.

5006250, Apr 9, 1991

Dec 4, 1987

7/128664

Paul V. Roberts - Cupertino CA
Gary D. Hopkins - Sunnyvale CA
Lewis Semprini - Palo Alto CA
Perry L. McCarty - Stanford CA
Douglas M. MacKay - Venice CA

The Board of Trustees of the Leland Stanford Junior University - Stanford CA

C02F 334

210610

The present invention is directed to a method for purifying an underground water supply containing halogenated aliphatic compounds by in-situ biodegradation of said compounds, comprising injecting water into an aquifer zone, the injected water containing an electron donor capable of being utilized by an indigenous population of microorganisms contained in the groundwater supply as a primary growth substrate, and an electron acceptor for oxidation of the primary substrate, by separate addition of electron donor and electron acceptor temporally or spatially to stimulate growth of the microorganisms and to distribute them throughout the aquifer zone to cause in-situ degradation of the halogenated aliphatic compounds by metabolic activity of the microorganisms.

2020037, Dec 3, 2020

Jun 1, 2020

16/889232

- Cupertino CA, US
Diwakar N. Tundlam - Cupertino CA, US
James S. Ismail - San Jose CA, US
Keith Cox - Sunnyvale CA, US
Reza Arastoo - Cupertino CA, US
Douglas A. MacKay - San Jose CA, US
John M. Ananny - Cupertino CA, US
Michael Eng - San Jose CA, US

G06F 1/28
G06F 1/3212
H02J 7/00
G01R 31/387
G01R 31/367

Systems and methods are disclosed for allocating and distributing power management budgets for subsystems (e.g., power usage clients) of a computer system. A power budget allocation subsystem may include a plurality of feedback branches having different associated time constants. Power usage clients with slower power response times may be provided power budgets based on a feedback branch having an associated longer time constant, while power usage clients with faster power response times may be provided with power budgets based on a feedback branch having an associated shorter time constant. The power budgets may be determined in the feedback branches based on power budgeting policies weighting the power budget of each subsystem relative to total power mitigation.