Filters: Collection: "ir_uspace"
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 426 |
 |
Hartmann, Donald P. | Forcing square pegs into round holes: Some comments on "An Analysis-of-Variance Model for the Intrasubject Replication Design | This paper critically examines the application of fixed-effect one-way analysis-of-variance procedures to learning data from a single subject. Procedures more appropriate for data obtained from intrasubject replication designs are briefly described. | ANOVA; Variance analysis; Behavior analysis | 1974 |
| 427 |
 |
Cole, Edwin Randolph | The removal of unknown image blurs by homomorphic filtering | This report describes a homomorphic method for the estimation and removal of unknown image blurs, which are presumed to have been caused by a linear stationary system. Previous methods have required a more or less perfect a priori knowledge of the identity of the blur. the method described here requ... | Homomorphic filtering; Removal; Image blurs; Blurred image | 1974 |
| 428 |
 |
Firmage, Edwin B. | Law and the Indochina War: a retrospective view | This century, from the Hague Conferences through the Vietnam War, has seen a profound change in attitudes toward the role of law as a constraint upon foreign policy. The Hague Conferences represented at once an attempt, however feeble, by men of mixed motives to emplace fledgling prophylactic lega... | Foreign affairs; Dispute resolution; International disputes; Arbitration | 1974 |
| 429 |
 |
Mattis, Daniel C. | Conductivity of one-dimensional interacting fermions* | Using an exactly soluble model, the decay rate of a current-carrying state of one-dimensional fermions is calculated in the presence of random scatterers at finite temperature and the dc conductivity thereby inferred. For interacting fermions it is modified by a factor (T/T + θ)g, where g is a posi... | Fermi gas | 1974-04 |
| 430 |
 |
Cannon, Thomas Michael | Digital image deblurring by nonlinear homomorphic filtering (CSTD-74-004) | This report is concerned with the digital estimation of the frequency response of a two-dimensional linear system through which images have been passed and blurred. Almas t no a priori Knowledge concerning the system is required, and only one blurred image is necessar\d for a successful estimation. ... | Computer animation | 1974-08 |
| 431 |
 |
Mattis, Daniel C. | Effect of band structure on ferromagnetism* | We extend Nagaoka's study of the ferromagnetism of nearly half-filled bands in the infinite-repulsion limit of the Hubbard model by including next-nearest-neighbor tight-binding overlap matrix elements K2. Particles can now get past one another, even in one dimension. We find corroboration of Nagaok... | Eigenstates; Spin waves | 1974-08 |
| 432 |
 |
Clark, James Henry | 3-D Design of free-form B-Spline surfaces (CSTD-74-005) | This report describes an experimental system for designing free-form B-spline surfaces using a head-mounted display. In this system, the interaction with the surfaces takes place in three dimensions as the designed object's shape Is updated in real-time. The report also examines some of the problems... | Computer animation | 1974-09 |
| 433 |
 |
Mattis, Daniel C. | Dynamic properties of a nonsuperfluid Bose liquid in the random-phase approximation | The dynamic structure factor S(k,w) of a nonideal Bose liquid is calculated within the random-phase approximation and compared with neutron scattering data by Cowley and Woods for liquid helium in the temperature range Tλ<T≤4.2°K, with the conclusion that the model is wholly inadequate. A low-f... | Bose liquid; Random-phase approximation; Overdamping | 1974-11 |
| 434 |
 |
Catmull, Edwin | A subdivision algorithm for computer display of curved surfaces (CSTD-74-006) | This report presents a method for producing computer shaded pictures of curved surfaces. Three-dimensional curved patches are used, as contrasted with conventional methods using polygons. The method subdivides a patch into successively smaller subpatches until a subpatch is as small as a raster-elem... | Computer animation | 1974-12 |
| 435 |
 |
Capecchi, Mario R. | Selective degradation of abnormal proteins in mammalian tissue culture cells. | The degradation rates of several missense mutants of hypoxanthine-guanine phosphoribosyltransferase (EC 2.4.2.8) in mouse L cells are compared to those of the wild-type enzyme. Although the rates of total protein breakdown in the mutant cell lines are identical to that of the parental L cell line, ... | Gene Expression Regulation; Mice, Transgenic; Microscopy, Fluorescence | 1974-12-01 |
| 436 |
 |
Warner, Homer R. | HELP - A Computer System for Medical Decision Making | Biomedical Informatics | 1975 | |
| 437 |
 |
Warner, Homer R. | On Confiding in Computers | Biomedical Informatics | 1975 | |
| 438 |
 |
Stringfellow, Gerald B. | Electrical properties of nitrogen doped GaP | The electrical properties namely, electron concentration and mobility, have been investigated in the temperature range from 53 to 400 K for undoped and nitrogen-doped VPE GaP. | Electron concentration; Ionization energy; Electron mobility | 1975 |
| 439 |
 |
Baxter, Brent S. | Image processing in the human visual system | This work extends the multiplicative visual model to include image texture as suggested by experiments [Campbell, Weisel] linking a low resolution Fourier analysis with neurons in certain parts of the visual cortex. The new model takes image texture into account in the sense that weak texture is acc... | Human visual system; Image texture | 1975 |
| 440 |
 |
Greer, William Harvey | Monaural sensitivity to dispersion in impulses and speech | Monaural sensitivity; Dispersion; Impulses; Speech | 1975 | |
| 441 |
 |
Parke, Frederic Ira | A parametric model for human faces | This report presents a computer model for the representation of human faces. This three-dimensional, parametric model produces shaded facial images. The face, constructed of polygonal surfaces, is manipulated through the use of parameters which control interpolation, translation, rotation and scalin... | Parametric model; Human face | 1975 |
| 442 |
 |
Davidson, Diane W. | Preliminary study of seed predation in desert and montane habitats | Multifactorial experiments in which domestic seeds in shallow glass containers were distributed in desert and montane habitats provided data on identity of seed predators (whether rodents or ants), spatial and temporal pattern of their foraging activities, and their preferences for sizes and species... | Ant; Competition; Granivory; Predators, Seed; Rodent; Seed selection | 1975 |
| 443 |
 |
Gardner, Reed M. | American Thoracic Society - Device Standards (Editorial) | Biomedical Informatics | 1975 | |
| 444 |
 |
Gardner, Reed M. | Computerized Blood Gas Interpretation and Reporting System | Biomedical Informatics | 1975 | |
| 445 |
 |
Rom, Raphael Jona | Image transmission and coding based on human vision | In recent years more and more attention was paid to digital image processing especially as the result of the development of highly efficient algorithms and also because of technologically better facilities. Concurrently attempts were made to find a mathematical model for human vision to achieve a be... | Image transmission; Image coding; Human vision | 1975 |
| 446 |
 |
Hawkes, Kristen | Binumarien color categories | This paper has two aims. The first is to describe an ethnographically new system of color classification, Binumarien, a non-Austronesian or Papuan language of the Eastern Central Highlands of New Guinea2. In this connection we are particularly interested in relating our data to the Berlin and Kay (1... | Binumarien; Binumariens | 1975 |
| 447 |
 |
Ingebretsen, Robert Bergstrom | Log spectral estimation for stationary and nonstationary processes | This research is concerned with two log spectral estimators in the context of both stationary and nonstationary signals. They differ because in one smoothing is realized before the logarithmic transformation, while the other is smoothed in the logarithimc domain. It is shown that for stationary sign... | Log spectral estimation; Nonstationary processes; Log spectral estimators | 1975 |
| 448 |
 |
Warner, Homer R. | Assessment of Ventricular Function in Coronary Artery Disease Using Nitroglycerin and Computerized Analysis of Left Ventriculograms | Biomedical Informatics | 1975 | |
| 449 |
 |
Gardner, Reed M. | The Place of Computers in Medicine (Editorial) | Biomedical Informatics | 1975 | |
| 450 |
 |
Gesteland, Raymond F.; Atkins, John F. | Origin and destiny of adenovirus proteins | Lytic infection of human cells by adenovirus proceeds by a temporal expression of genes. Classically two phases have been defined: an early phase, which includes events occurring before the onset of DNA synthesis (8 hours), and a late phase, including events whose existence depends on the onset of... | Protein Biosynthesis; DNA, Viral; Adenoviridae; RNA, Viral; Time Factors | 1975 |