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INHS Reports, March 1989
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Creator
Illinois Natural History Survey
Description
Stephen A. Forbes Biological Station
Hamilton-Jacobi-Bellman equation for stochastic optimal control: Applications to spacecraft attitude control
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Creator
Golpashin, Alen Envieh
Description
This study aims to address the problem of attitude control of spacecraft in presence of thrust uncertainty, which leads to stochastic accelerations. Spacecraft equipped with electric propulsion and other low thrust mechanisms, often experience random fluctuations in thrust. These stochastic processes arise from sources such as uncertain power supply output, varying propellant flow rate, faulty thrusters, etc. Mission requirements and mass/fuel limitations demand an optimal and proactive method of control to mitigate the thrust uncertainty and parasitic torque. Stabilizing stochastic optimal control of the satellite attitude dynamics is derived through formulation of the Hamilton-Jacobi-Bellman equation associated with a stochastic differential equation. The solution to the Hamilton-Jacobi-Bellman partial differential equation is approximated through the method of Al’brekht [1]. Extension of Albrekht method for a stochastic system was first presented in [2]; detailed derivations of linear and nonlinear stochastic control laws along with their analytical and numerical analyses are presented in this thesis. A planning method is then discussed to lower the error due to local nature of the control.
Global heat balance without and with solar radiation management
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Creator
Ding, Chenghao
Description
A linearized global heat balance model which is driven by five classes of influence on long wavelength radiation and four classes of influence on short wavelength radiation is calibrated against historical estimates of global average temperature. Additional influences are variability of solar irradiance and the initial global average temperature at the end of pre-industrial period. Industrial activities perturbs the concentration of CO2, CH4, N2O, tropospheric ozone, other greenhouse gases, and contrails in the atmosphere. Also, anthropogenic influences on short wavelength radiation including effects of land use changes on albedo, anthropogenic tropospheric aerosols and stratospheric ozone and black carbon on snow, effects of volcanoes, and variable solar irradiance are considered. The "climate sensitivity" of global average temperature response to these influences accounts for the "ice albedo" effect of global average temperature changes on absorption of short wavelength radiation and the influence of temperature changes on atmospheric water. Using the data-calibrated model, global average temperature is extrapolated to the year 2220.
AI concept map
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Creator
Rastovac, Matthew
Description
NOTE: This is an interactive visualization. Beginners to the machine learning space are often surprised at the amount of terms present in the space. It’s often very difficult to make sense of where these terms originate from, which subfield of ML they belong to, or how they relate. The goal of the AI Concept Map is to demystify these relationships by displaying a concept map of the most common machine learning fields, concepts, models, and algorithms, and how they relate to each other. Understanding where each piece fits helps to understand the whole field and make it seem less daunting.
Waste Reduction Policy Resources for Municipal and County Governments
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Creator
Barnes, Laura L.
Description
This bibliography resulted from an information request to identify resources that state and county governments can use when developing waste reduction policies. It serves as a starting point for communities looking to do similar projects.
INHS Reports, October 1989
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Creator
Illinois Natural History Survey
Description
World Bibliography of Soybean Etymology | The Illinois River: A Lesson to be Learned | Winter Refuges--The Key to Survival of Farmland Deer
INHS Reports, February 1990
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Creator
Illinois Natural History Survey
Description
Potato Leafhopper Control | Computer Software for Analyzing Evolutionary Relationships | Forest Resources of Illinois
The Architecture of Schools of Architecture
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Creator
Anthony, Kathryn H.
Wolfgang F.E.Preiser
Nasar, Jack L
Illini Go
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Creator
Pan, Yiting
George, Daniel
Franco, Sandra, M
Singh, Ravijot
Description
Illini Go is a mobile based virtual tour guide designed for students to explore and contribute to our university’s 150 years of myths, legends, and historical facts.
The geography of the European potash industry
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Creator
Mohme, Fred Stephen
Description
Thesis (M.A.)--University of Illinois at Urbana-Champaign, 1927.
Oil fields of South America, excluding Venezuela: A geographic analysis
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Creator
Clutter, Lester Woodrow
Description
Thesis (M.S.)--University of Illinois at Urbana-Champaign, 1951.
Sand and gravel resources of Peoria County
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Creator
Hunter, Ralph E.
Anderson, Richard C.
Description of late Pennsylvanian strata from deep diamond drill cores in the southern part of the Illinois Basin
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Creator
Smith, W.H.
Smith, G.E.
Diet Development and Evaluation for Selected Coolwater Fishes: Final Report, F-111-R
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Creator
Hooe, Michael L.
Wahl, David H.
Brecka, Brain J.
The geographic significance of the freight rate structure of Illinois
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Creator
Alexander, John Wesley
Description
Thesis (M.A.)--University of Illinois at Urbana-Champaign, 1941.
The sweet corn industry of Iroquois and Vermilion Counties
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Creator
Witzig, Frederick Theodore
Description
Thesis (M.S.)--University of Illinois at Urbana-Champaign, 1951.
Weekly Planning Guide
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Creator
Conlon, Mallory
Description
This planning guide is designed to help you thoughtfully approach the weekly planning of your online course. Much of this information will be shared with your students, so be sure to fill out this planning guide with your students in mind.
Moslem geographers 800-1300 A.D.
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Creator
Nejim, Hassan Taha
Description
Thesis (M.A.)--University of Illinois at Urbana-Champaign, 1952.
Food for Thought: Lunch Programs in the Public Library
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Creator
Lapp, Anna
Description
The author proposes another way that public libraries can foster student learning by providing lunch programs. The poster outlines a variety of previous studies into the subject spurred by the United States Department of Agriculture's Summer Food Service Program.
Statistics of One-Dimensional Cluster Motion
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Creator
Ehrlich, Gert
Reed, David A.
Wrigley, John D.
Description
Coordinated Science Laboratory was formerly known as Control Systems Laboratory
Experimental Study of a Dielectric Antenna at the Frequency Range of 76-80 GHz
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Creator
Chang, A.
Mittra, R.
Description
Coordinated Science Laboratory was formerly known as Control Systems Laboratory
Thermodynamics of Surface Clusters - Direct Observation of Re2 on W(211)
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Creator
Ehrlich. Gert
Wrigley, John D.
Stolt, Kaj
Description
Coordinated Science Laboratory was formerly known as Control Systems Laboratory
Levels of Representation of Programs and the Architecture of Universal Host Machines
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Creator
Rau, B. Ramakrishna
Description
Coordinated Science Laboratory was formerly known as Control Systems Laboratory
Nonlinear Solutions of the Wigley Hull
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Creator
Reyes, R.R.
Yen, S.M.
Description
Coordinated Science Laboratory was formerly known as Control Systems Laboratory
Artificial Intelligence and Human Error Prevention: A Computer Aided Decision Making Approach: Technical Report #2:...
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Creator
Ross, Charles B.
Description
Coordinated Science Laboratory was formerly known as Control Systems Laboratory
The Rate-Distortion Function on Classes of Sources Determined by Spectral Capacities
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Creator
Poor, H. Vincent
Description
Coordinated Science Laboratory was formerly known as Control Systems Laboratory
Steps into Computational Geometry: Notebook II
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Creator
Preparata, F.P.
Description
Coordinated Science Laboratory was formerly known as Control Systems Laboratory
Singular Perturbations and Time Scales in Modeling and Control of Dynamic Systems
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Creator
Kokotovic, Petar V.
Description
Coordinated Science Laboratory was formerly known as Control Systems Laboratory
Artificial Intelligence and Human Error Prevention: A Computer Aided Decision Making Approach: Final Report
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Creator
Chien, R.T.
Description
Coordinated Science Laboratory was formerly known as Control Systems Laboratory
Preliminary Report: A Simple Optical Technique for Filtering and Displaying Radar Data
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Creator
Miller, E.E.
Description
Control Systems Laboratory changed its name to Coordinated Science Laboratory
Rapid Scan Versus Coherent Doppler Radar for A.S.W.
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Creator
Sherwin, C.W.
Ruina, J.P.
Description
Control Systems Laboratory changed its name to Coordinated Science Laboratory
Evaluation of the Icon I (JNS) Control Program
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Creator
Murray, Albert E.
Description
Control Systems Laboratory changed its name to Coordinated Science Laboratory
Censoring with a Video Mapper
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Creator
Murray, Albert E.
Description
Control Systems Laboratory changed its name to Coordinated Science Laboratory
DEPEND: A Simulation-Based Environment for System Level Dependability Analysis
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Creator
Iyer, Ravishankar K.
Goswami, Kumar K.
Description
Coordinated Science Laboratory was formerly known as Control Systems Laboratory
A Minimum Area VLSI Architecture for O(logn) Time Sorting
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Creator
Bilardi, G.
Preparata, F.P.
Description
Coordinated Science Laboratory was formerly known as Control Systems Laboratory
Controllability, Pole Placement and Stabilizability in Large Scale Composite Systems
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Creator
Özgüner, Ü.
Perkins, W.R.
Description
Coordinated Science Laboratory was formerly known as Control Systems Laboratory
Steps into Computational Geometry
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Creator
Preparata, F.P.
Description
Coordinated Science Laboratory was formerly known as Control Systems Laboratory
Scalar Queue Conversion: Dynamic Single Assignment for Concurrent Scheduling
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Creator
Amarasinghe, Saman
Frank, Matthew I.
Description
Coordinated Science Laboratory was formerly known as Control Systems Laboratory
Dynamic Model of a Continuous Cold Rolling Mill
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Creator
Jamshidi, M.
Kokotović, P.
Description
Coordinated Science Laboratory was formerly known as Control Systems Laboratory
Parameter Adaptive Control for a Class of Nonlinear Systems
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Creator
Taylor, David G.
Description
Coordinated Science Laboratory was formerly known as Control Systems Laboratory

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