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Improved Statistics for Determining the Patterson Symmetry fromUnmerged Diffraction Intensities

Description: We examine procedures for detecting the point-group symmetryof macromolecular datasets and propose enhancements. To validate apoint-group, it is sufficient to compare pairs of Bragg reflections thatare related by each of the group's component symmetry operators.Correlation is commonly expressed in the form of a single statisticalquantity (such as Rmerge) that incorporates information from all of theobserved reflections. However, the usual practice of weighting all pairsof symmetry-related intensities equally can obscure the fact that thevarious symmetry operators of the point-group contribute differingfractions of the total set. In some cases where particular symmetryelements are significantly under-represented, statistics calculatedglobally over all observations do not permit conclusions about thepoint-group and Patterson symmetry. The problem can be avoided byrepartitioning the data in a way that explicitly takes note of individualoperators. The new analysis methods, incorporated into the programLABELIT (cci.lbl.gov/labelit), can be performed early enough during dataacquisition, and are quick enough, that it is feasible to pause tooptimize the data collection strategy.
Date: January 9, 2006
Creator: Sauter, Nicholas K.; Grosse-Kunstleve, Ralf W. & Adams, Paul D.
Partner: UNT Libraries Government Documents Department

Unplug Your Mouse: Workflow Automation with AutoHotkey

Description: This Tech Talk presentation discusses workflow automation with AutoHotkey. AutoHotkey provides an easy to use scripting language for assigning multiple actions to a single key command, or hotkey. The AutoHotkey syntax also supports programming constructs and the creation of graphical user interfaces for developing complex applications. This Tech Talk will demonstrate how to write AutoHotkey scripts and give examples of how the Digital Projects Unit is using the software to streamline repetitive tasks.
Date: February 20, 2013
Creator: Weidner, Andrew & Wilson, Robert John
Partner: UNT Libraries

Automating Pro/Engineer Using Trail Files and External Programs

Description: Keyboard macros provide shortcuts to many repetitive command sequences in Pro/Engineer. They map any number of frequently used command sequences to user-selected keyboard keys. They may be nested within each other and may also include user keyboard entry within the macro. Another powerful feature of Pro/Engineer is adding menu options. Menu options may be added to any Pro/Engineer menu and is an effective way to graphically display keyboard macros to make them more accessible. Command sequences are mapped to a single user-defined menu option added to the bottom of any Pro/Engineer window. The '{at}setbutton' command added to the 'menu{_}def.pro' file specifies the commands to associate with added menu options. Menu options may also be used to execute non-Pro/Engineer commands. The associated command is linked to a menu option within Pro/Engineer's Utilities menu (in the Misc menu) and is issued whenever the menu option is selected. Such a feature is useful for adding menu options to start the Pro/Engineer User Guide utility, start a text editor from within Pro/Engineer, or perform system level actions. The '{at}setbutton{_}exec' command is used in the 'menu{_}def.pro' file for non-Pro/Engineer commands. A more detailed description of adding menu options can be found in the Pro/Engineer Fundamentals Guide. Another useful component of Pro/Engineer is the trail file functionality. Trail files are automatically created every time a new working Pro/Engineer session begins. Although they are typically used to reconstruct a previous working session, they can also be used to automate a series of commands. By specifying all the commands in a trail file, a user can issue the commands quickly and repetitively using the command sequence 'Misc-Trail' and specifying the trail file name. All actions, including keyboard entries and mouse click locations, may be included in a trail file. Although adding menu options and using trial files provide ...
Date: May 21, 1996
Creator: Chow, K.
Partner: UNT Libraries Government Documents Department

Real-Time Optimization in Automated Manufacturing Facilities

Description: Abstract: The Symposium on Real-Time Optimization in Automated Manufacturing Facilities was held at the National Bureau of Standards, Gaithersburg, Maryland, January 21-22, 1986. It was jointly sponsored by the Center for Manufacturing Engineering (with funds obtained from the Navy Manufacturing Technology Program) and the Center for Applied Mathematics. It was designed to bring together those who design and test optimization procedures for solving planning, scheduling, and routing problems with those who must use these procedures in a real-time manufacturing environment. Included in the proceedings are discussions of the following topics: an approach to hierarchical production planning and scheduling; a hierarchy of intelligent scheduling and control for automated manufacturing systems; the integration of planning scheduling, and control for automated manufacturing; intelligent manufacturing planning systems; a decision making framework for manufacturing systems; PATRIARCH -- hierarchical production scheduling; low-level interactive scheduling; the general employee scheduling problem: an effective large scale solution approach; ISIS project in review; dynamic control in automated manufacturing: a knowledge integrated approach; a management control approach to the manufacturing, planning, and scheduling problem; hierarchies of sub-periods in constraint-directed scheduling; a two-level planning and scheduling approach for computer integrated manufacturing; match-up real-time scheduling; a maximal covering model for loading flexible manufacturing systems; interstage transportation planning in the flow-shop environment; minimal technology routing and scheduling systems based on space filling curves; a multi-pass expert control system (MPECS) for flexible manufacturing systems; requirements for automatic control of aerospace manufacturing processes; real-time scheduling of an automated manufacturing center; the interaction between design and scheduling in repetitive manufacturing environments; an adaptable scheduling algorithm for flexible flow lines (abstract); determining aggregated FMS production ratios and minimum inventory requirements; a knowledge based system for dynamic manufacturing replanning; dispatching -- the critical automation lirk; scheduling jobs in flexible manufacturing systems; design requirements for a real-time production scheduling decision ...
Date: September 1986
Creator: Jackson, Richard Henry Frymuth & Jones, Albert W. T.
Partner: UNT Libraries Government Documents Department

Computerization of Welding Information

Description: From abstract: The Workshop on Computerization of Welding Information, sponsored by the National Bureau of Standards and the American Welding Institute, was held August 5-6, 1986 in Knoxville, Tennessee. Forty-two welding engineers, welding managers, and computer scientists gathered to discuss the necessity and design of databases for welding information. Each subject was introduced by specialists in that area.
Date: June 1988
Creator: Siewert, T. A. & Jones, J. E.
Partner: UNT Libraries Government Documents Department

Exploring the Moon and Mars: Choices for the Nation

Description: This report, the result of an assessment of the potential for automation and robotics technology to assist in the exploration of the Moon and Mars, raises a number of issues related to the goals of the U.S. civilian space program. Among other things, the report discusses how greater attention to automation and robotics technologies could contribute to U.S. space exploration efforts.
Date: July 1991
Creator: United States. Congress. Office of Technology Assessment.
Partner: UNT Libraries Government Documents Department

Automation Enhancement of Multilayer Laue Lenses

Description: X-ray optics fabrication at Brookhaven National Laboratory has been facilitated by a new, state of the art magnetron sputtering physical deposition system. With its nine magnetron sputtering cathodes and substrate carrier that moves on a linear rail via a UHV brushless linear servo motor, the system is capable of accurately depositing the many thousands of layers necessary for multilayer Laue lenses. I have engineered a versatile and automated control program from scratch for the base system and many subsystems. Its main features include a custom scripting language, a fully customizable graphical user interface, wireless and remote control, and a terminal-based interface. This control system has already been successfully used in the creation of many types of x-ray optics, including several thousand layer multilayer Laue lenses.Before reaching the point at which a deposition can be run, stencil-like masks for the sputtering cathodes must be created to ensure the proper distribution of sputtered atoms. Quality of multilayer Laue lenses can also be difficult to measure, given the size of the thin film layers. I employ my knowledge of software and algorithms to further ease these previously painstaking processes with custom programs. Additionally, I will give an overview of an x-ray optic simulator package I helped develop during the summer of 2010. In the interest of keeping my software free and open, I have worked mostly with the multiplatform Python and the PyQt application framework, utilizing C and C++ where necessary.
Date: December 1, 2010
Creator: R., Lauer K. & R., Conley
Partner: UNT Libraries Government Documents Department

The effects of structured approaches to computer implementation in small businesses: a study of the relationships between level of systematic approach and implementation time, implementation cost, user satisfaction and level of integration

Description: The purpose of this research is to determine the effects of systematic approach to computer integration on implementation cost, implementation time, user satisfaction, and level of integration in small business environments. It is believed that decreased costs and implementation time result from the use of systematic approaches to computer integration. Systematic approaches may also result in higher user satisfaction and a higher level of system integration.
Date: May 1991
Creator: Savoie, Michael J.
Partner: UNT Libraries

Review of Postal Automation Strategy: A Technical and Decision Analysis

Description: A memorandum by the Office of Technology Assessment (OTA) that reviews the "United States Postal Service (USPS) decision to utilizes single-line optical character readers (OCRs) instead of multi-line OCRs" and conducts "a comparative technical and economic analysis of the two technologies in the context of the overall postal automation program" (Foreward).
Date: June 1984
Creator: United States. Congress. Office of Technology Assessment.
Partner: UNT Libraries Government Documents Department

Perceptual basis for reactive teleoperation.

Description: To enhance task performance in partially structured environment, enhancement of teleoperation was proposed by introducing autonomous behaviors. Such autonomy is implemented based on reactive robotic architecture, where reactive motor agents that directly couples sensory inputs and motor actions become the building blocks. To this end, presented in this paper is a perceptual basis for the motor agents. The perceptual basis consists of perceptual agents that extracts environmental information from a structured light vision system and provide action oriented perception for the corresponding motor agents. Rather than performing general scene reconstruction, a perceptual agent directly provides the motion reference for the motor behavior. Various sensory mechanisms--sensor fission, fusion, and fashion--becomes basic building blocks of the perception process. Since perception is a process deeply intertwined with the motor actions, active perception may also incorporate motor behaviors as an integral perceptual process.
Date: August 28, 2001
Creator: Park, Y. S.; Ewing, T. F.; Boyle, J. M. & Yule, T. J.
Partner: UNT Libraries Government Documents Department

Illinois Library Resources and Automation in the Networked Environment: An Analysis and Recommended Strategies Final Report

Description: This study identifies strategies for enhancing access to Illinois libraries' holdings, where the strategies ensure the best stewardship possible for state and federal grant dollars for library automation and resources.
Date: October 2002
Creator: Moen, William E.; Enoch, Larry & Greenway-Hayes, Debra
Partner: UNT College of Information

Architecture Concepts and Technical Issues for an Open,Interoperable Automated Demand Response Infrastructure

Description: This paper presents the technical and architectural issues associated with automating Demand Response (DR) programs. The paper focuses on a description of the Demand Response Automation Server (DRAS), which is the main component used to automate the interactions between the Utilities and their customers for DR programs. Use cases are presented that show the role of the DRAS in automating various aspects of DR programs. This paper also describes the various technical aspects of the DRAS including its interfaces and major modes of operation. This includes how the DRAS supports automating such Utility/Customer interactions as automated DR bidding, automated DR event handling, and finally real-time pricing.
Date: October 1, 2007
Creator: Koch, Ed & Piette, Mary Ann
Partner: UNT Libraries Government Documents Department

Individualized Medicine

Description: The recent focus of microelectromechanical-systems (MEMS) based instrumentation has largely dealt with increasing the throughput of established processes, including drug screening/drug discovery/combinatorial chemistry, or the miniaturization of accepted bench-top instruments. The miniaturization and automation of procedures that were previously performed manually are included in these activities. We suggest that BioMEMS instrumentation will adopt an additional direction, that of providing information and capabilities to the physician that are not available, today.
Date: August 29, 2000
Creator: Mariella, R.
Partner: UNT Libraries Government Documents Department

Parallel Assembly of LIGA Components

Description: In this paper, a prototype robotic workcell for the parallel assembly of LIGA components is described. A Cartesian robot is used to press 386 and 485 micron diameter pins into a LIGA substrate and then place a 3-inch diameter wafer with LIGA gears onto the pins. Upward and downward looking microscopes are used to locate holes in the LIGA substrate, pins to be pressed in the holes, and gears to be placed on the pins. This vision system can locate parts within 3 microns, while the Cartesian manipulator can place the parts within 0.4 microns.
Date: March 4, 1999
Creator: Christenson, T.R. & Feddema, J.T.
Partner: UNT Libraries Government Documents Department

A Study of Numerically Controlled Machines

Description: This is a study of numerical control, its application, and the design of a numerical control program for a drilling machine. The study sought to obtain information on the function of numerical control; the different types of numerical control used by industry; and, the advantages of using numerical control.
Date: August 1967
Creator: Chan, John C. H.
Partner: UNT Libraries

Automatic Transformations in the Inference Process

Description: A technique for incorporating automatic transformations into processes such as the application of inference rules, subsumption, and demodulation provides a mechanism for improving search strategies for theorem proving problems arising from the field of program verification. The incorporation of automatic transformations into the inference process can alter the search space for a given problem, and is particularly useful for problems having broad rather than deep proofs. The technique can also be used to permit the generation of inferences that might otherwise be blocked and to build some commutativity or associativity into the unification process. Appropriate choice of transformations, and new literal clashing and unification algorithms for applying them, showed significant improvement on several real problems according to several distinct criteria.
Date: July 1980
Creator: Veroff, Robert L.
Partner: UNT Libraries Government Documents Department

Canonicalization and Demodulation

Description: Mechanisms that were developed for the Argonne National Laboratory - Northern Illinois University theorem proving system are discussed. By defining special input clauses and demodulators, it is possible to simulate mathematical processes such as canonicalization of polynomials with no special programming. The mechanisms presented resulted from a study of the X³ = X problem in ring theory. The use of the mechanisms allowed this problem to the solved for the first time by the automated theorem proving system.
Date: February 1981
Creator: Veroff, Robert L.
Partner: UNT Libraries Government Documents Department

Design and Operation of an Open, Interoperable Automated Demand Response Infrastructure for Commercial Buildings

Description: This paper describes the concept for and lessons from the development and field-testing of an open, interoperable communications infrastructure to support automated demand response (auto-DR). Automating DR allows greater levels of participation, improved reliability, and repeatability of the DR in participating facilities. This paper also presents the technical and architectural issues associated with auto-DR and description of the demand response automation server (DRAS), the client/server architecture-based middle-ware used to automate the interactions between the utilities or any DR serving entity and their customers for DR programs. Use case diagrams are presented to show the role of the DRAS between utility/ISO and the clients at the facilities.
Date: May 1, 2009
Creator: Piette, Mary Ann; Ghatikar, Girish; Kiliccote, Sila; Watson, David; Koch, Ed & Hennage, Dan
Partner: UNT Libraries Government Documents Department

Wireless Demand Response Controls for HVAC Systems

Description: The objectives of this scoping study were to develop and test control software and wireless hardware that could enable closed-loop, zone-temperature-based demand response in buildings that have either pneumatic controls or legacy digital controls that cannot be used as part of a demand response automation system. We designed a SOAP client that is compatible with the Demand Response Automation Server (DRAS) being used by the IOUs in California for their CPP program, design the DR control software, investigated the use of cellular routers for connecting to the DRAS, and tested the wireless DR system with an emulator running a calibrated model of a working building. The results show that the wireless DR system can shed approximately 1.5 Watts per design CFM on the design day in a hot, inland climate in California while keeping temperatures within the limits of ASHRAE Standard 55: Thermal Environmental Conditions for Human Occupancy.
Date: June 30, 2009
Creator: Federspiel, Clifford
Partner: UNT Libraries Government Documents Department

Final Scientific Technical Report: INTEGRATED PREDICTIVE DEMAND RESPONSE CONTROLLER FOR COMMERCIAL BUILDINGS

Description: This project provides algorithms to perform demand response using the thermal mass of a building. Using the thermal mass of the building is an attractive method for performing demand response because there is no need for capital expenditure. The algorithms rely on the thermal capacitance inherent in the building?s construction materials. A near-optimal ?day ahead? predictive approach is developed that is meant to keep the building?s electrical demand constant during the high cost periods. This type of approach is appropriate for both time-of-use and critical peak pricing utility rate structures. The approach uses the past days data in order to determine the best temperature setpoints for the building during the high price periods on the next day. A second ?model predictive approach? (MPC) uses a thermal model of the building to determine the best temperature for the next sample period. The approach uses constant feedback from the building and is capable of appropriately handling real time pricing. Both approaches are capable of using weather forecasts to improve performance.
Date: October 14, 2013
Creator: Wenzel, Mike
Partner: UNT Libraries Government Documents Department