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Articles 1 - 21 of 21
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New Solution For Frequency And Pixel Domain Coding Using Convex Sets, Pete Santago, Sarah A. Rajala
New Solution For Frequency And Pixel Domain Coding Using Convex Sets, Pete Santago, Sarah A. Rajala
Sarah A. Rajala
This paper describes a new algorithm for combining spatial and frequency domain information about an image in order to improve coding. The algorithm utilizes successive projections onto two non-intersecting sets in order to determine the optimal frequency domain coefficients to transmit given some known spatial information. This technique is best suited to fixed block size transform coders and builds on the techniques used in previous work.
(On The) Observability Of Cubic (P8) Octaphosphorus, Michael W. Schmidt, Mark S. Gordon
(On The) Observability Of Cubic (P8) Octaphosphorus, Michael W. Schmidt, Mark S. Gordon
Mark S. Gordon
A recent MNDO calculation predicts that the hypothetical P8 is more stable than the observed gas-phase species P4. The ab initio calculations reported here predict just the opposite but do establish that P8 is more stable than another experimentally known form, P2. The relative enthalpies (kcaljmol) are found to be as follows: 4P2, 72.4; 2P 4, 0; P8, 30.4. A force field analysis proves P8 has a cubic structure. The bond length, vibrational frequencies, and photoelectron spectrum of P8 are predicted.
Behavior And Ecological Interactions Of Larval Odonata, Clay L. Pierce, Philip H. Crowley, Dan M. Johnson
Behavior And Ecological Interactions Of Larval Odonata, Clay L. Pierce, Philip H. Crowley, Dan M. Johnson
Clay L. Pierce
Enallagma aspersum and E. traviatum (Odonata: Coenagrionidae) are the most abundant larval odonates in Bays Mountain Park (Sullivan County, Tennessee, USA), although their spatial distributions are essentially nonoverlapping. E. traviatum coexists with insectivorous fish in a small lake, whereas E. aspersum is restricted to a small fishless pond nearby. Behavioral observations revealed that E. aspersum larvae were more active than E. traviatum, and tended to occupy more conspicuous positions. E. aspersum also engaged in more confrontations than E. traviatum, especially at higher density. In laboratorye xperimentsw ith juvenile bluegills( Lepomism acrochirusa) s predators,E . aspersum larvae were more vulnerable to …
Soymilk Process, Charles W. Deyoe, William J. Hoover, Lawrence A. Johnson
Soymilk Process, Charles W. Deyoe, William J. Hoover, Lawrence A. Johnson
Lawrence A. Johnson
Process for making a soybean-based milk analog or soymilk and food products prepared therefrom. The process involves the comminuting of whole soybeans having the hulls thereon; forming a slurry of the comminuted soybeans; simultaneously initiating the inactivation of trypsin inhibitor and lipoxygenase without fixing protein bodies or substantially denaturing the soybean protein; confining the heated slurry until the trypsin inhibitor activity is reduced to a desired value; cooling the slurry; and separating the hulls from the slurry to recover the desired product. The resulting soymilk is an aqueous preparation of the soybean which exhibits minimal destruction of essential amino acids, …
Detection Of Maneuvering Target Tracks, Mary L. Padgett, Sarah A. Rajala, Wesley E. Snyder, W. Howard Ruedger
Detection Of Maneuvering Target Tracks, Mary L. Padgett, Sarah A. Rajala, Wesley E. Snyder, W. Howard Ruedger
Sarah A. Rajala
This paper presents a new technique for the detection of moving target tracks, where those tracks are linear paths or segments of circles[1,2]. The images used as input represent a time-varying sequence of noisy satellite images of terrain and a moving target(s). Preprocessing of the image sequence involves use of third order differencing to remove stationary points and produce a sequence of intermediate images containing only the target track(s) and noise from various sources[3]. The new procedure described in this paper begins by selection of a window from the preprocessed image sequence. A generalized Hough transform technique is then employed …
The Effect Of Carried Loads On The Combative Movement Performance Of Men And Women, Philip E. Martin, Richard C. Nelson
The Effect Of Carried Loads On The Combative Movement Performance Of Men And Women, Philip E. Martin, Richard C. Nelson
Philip E. Martin
This study examined the effect of carrying typical military loads of varying magnitude on the combative movement performance of 16 male and 14 female subjects. The subjects performed a series of tests which included a 25 yard spring, standing long jump, agility run, reaction - movement test, and ladder climb. These tests were performed under five load conditions ranging from a baseline condition (no load) to one of approximately 37 kg. The results from these performance tests constitute valuable information concerning the effects of selected loads on combative movement.
Studies Of Silicon-Phosphorus Bonding, Kenneth J. Dykema, Thanh N. Truong, Mark S. Gordon
Studies Of Silicon-Phosphorus Bonding, Kenneth J. Dykema, Thanh N. Truong, Mark S. Gordon
Mark S. Gordon
Ab initio calculations are presented for several species containing a silicon-phosphorus bond. The types of bonding studied include "normal" single, double, and triple bonds, as well as an ylide-like structure. The latter is found to be much less strongly bound than the carbon analogue, with a smaller stretching force constant than that in silylphosphine. The insertions of silylene into the phosphine bond and of phosphinosilylene into H2 are discussed, with the former being illustrated using localized molecular orbitals along the intrinsic reaction coordinate (IRC). Silylene to silene isomerizations in both the closed-shell singlet and the lowest triplet states of SiPH3 …
A Theoretical Study Of Fluorine Atom And Fluoride Ion Attack On Methane And Silane, Larry P. Davis, Larry W. Burggraf, Mark S. Gordon, Kim K. Baldridge
A Theoretical Study Of Fluorine Atom And Fluoride Ion Attack On Methane And Silane, Larry P. Davis, Larry W. Burggraf, Mark S. Gordon, Kim K. Baldridge
Mark S. Gordon
We have performed MNDO and ab initio calculations for reactions of fluorine atom attack on methane and silane and, in addition, fluoride ion attack on the same molecules in the case of MNDO. We modeled both substitution and abstraction reactions in each case. Results were compared with experimental data, where available. Comparisons show that MNDO usually does as well as the ab initio methods in reproducing experimental values for D.E's of these reactions, but MNDO predicts activation barriers too high in most cases. Nevertheless, MNDO does qualitatively agree with the ab initio result that, while carbon undergoes abstraction much more …
Male Reproductive Parasitism: A Factor In The Africanization Of European Honey-Bee Populations, Thomas E. Rinderer, Richard L. Hellmich Ii, Anita M. Collins, Robert G. Danka
Male Reproductive Parasitism: A Factor In The Africanization Of European Honey-Bee Populations, Thomas E. Rinderer, Richard L. Hellmich Ii, Anita M. Collins, Robert G. Danka
Richard L Hellmich
Africanized drone honey bees (Apis mellifera) migrate into European honey-bee colonies in large numbers, but Africanized colonies only rarely host drones from other colonies. This migration leads to a strong mating advantage for Africanized bees since it both inhibits European drone production and enhances Africanized drone production
The Intrinsic Reaction Coordinate And The Rotational Barrier In Silaethylene, Michael W. Schmidt, Mark S. Gordon, Michel Dupuis
The Intrinsic Reaction Coordinate And The Rotational Barrier In Silaethylene, Michael W. Schmidt, Mark S. Gordon, Michel Dupuis
Mark S. Gordon
The intrinsic reaction coordinate (IRC) is a minimum-energy pathway connecting reactants to products via the transition state. An improved algorithm for the determination of an IRC is presented. The method is illustrated for the rotation of the silicon-carbon double bond in silaethylene. This IRC shows all coordinates vary smoothly during the rotation from the planar to twisted structures, except for a slight pyramidalization at carbon. The rotational barrier is found to be about 37 kcaljmol, in good agreement with experimental estimates.
Glass Formation And High Conductivity In The Ternary System Silver Iodide + Silver Arsenate (Ag3aso4) + Silver Metaphosphate (Agpo3): Host To Glassy .Alpha.-Silver Iodide?, Steve W. Martin, Alberto Schiraldi
Glass Formation And High Conductivity In The Ternary System Silver Iodide + Silver Arsenate (Ag3aso4) + Silver Metaphosphate (Agpo3): Host To Glassy .Alpha.-Silver Iodide?, Steve W. Martin, Alberto Schiraldi
Steve W. Martin
Wide regions of glass formation have been found in the ternary system xAgI + yAg,As04 + (1 - x - y)AgPO,. Glasses containing up to 75 mol 7% AgI can be formed in sections greater than 2 cm thick without signs of devitrification. Glass transition temperatures as high as 175 OC for glasses containing - 10 mol % AgI fall to -45 OC at the highest AgI content. An equivalent ratio of Ag1:N is defined and it is found that, for all glass-forming compositions, the electrical data as expressed in the Arrhenius form, u = A exp(-E,,/RT), log (./(a cm)-’), …
Pressure Dissociation Of Solid Nitrogen Under 1 Mbar, A. K. Mcmahan, Richard Alan Lesar
Pressure Dissociation Of Solid Nitrogen Under 1 Mbar, A. K. Mcmahan, Richard Alan Lesar
Richard Alan Lesar
The zero-temperature transition pressure from molecular to monatomic nitrogen is predicted to be less than about 1 Mbar, and should be observable in diamond-anvil cells. This estimate is obtained from total-energy calculations in which compressed molecular nitrogen is found to dissociate into a simple cubic monatomic structure, slight distortions of which are common to other group-V elements. The calculated 35% volume change raises the possibility of a large barrier to dissociation and extensive regions of metastability.
Electronic Structure Of The Phosphoryl And Thiophosphoryl Bonds, Michael W. Schmidt, Mark S. Gordon
Electronic Structure Of The Phosphoryl And Thiophosphoryl Bonds, Michael W. Schmidt, Mark S. Gordon
Mark S. Gordon
.The pho~phoryl bond is presented as a. resonan~e hybrid between singly and triply bound structures. The types of electromcally excited states and a number of their potential surfaces can be understood within the confines of a singly bound model: However, a detailed analysis of the electronic distribution within the ground state shows significant contribution from the tnpl~ bound structure. In fact, increasing the electronegativity of the ligands at phosphorus increases the contribution of t~e tnp~y bound structure, so that the. PO bond order approaches that of a double bond. The thiophosphoryl bond may be VIewed m much the same manner …
Inhibition Of Glycine Oxidation By Carboxymethoxylamine, Methoxylamine, And Acethydrazide, G. Sarojini, David J. Oliver
Inhibition Of Glycine Oxidation By Carboxymethoxylamine, Methoxylamine, And Acethydrazide, G. Sarojini, David J. Oliver
David J. Oliver
Carboxymethoxylamine (amino-oxyacetate), methoxylamine, and acethydrazide are shown to be effective, although not completely specific, inhibitors of glycine oxidation by the isolated glycine decarboxylase multienzyme complex, mitochondria, protoplasts, and leaf discs from peas. The inhibition probably results from a reaction between these compounds and the pyridoxal 5-phosphate cofactor of the enzyme.
Molecular And Electronic Structures Of Metallaspiropentanes, Mark S. Gordon, Philip Boudjouk
Molecular And Electronic Structures Of Metallaspiropentanes, Mark S. Gordon, Philip Boudjouk
Mark S. Gordon
Recent efforts in this laboratory have concentrated on synthesizing metallaspiropentane compounds (I) with M = C, Si, Ge, Sn, Ni, and Zn. To date, the molecule with M = Si and R = methyl has been successfully prepared, 1 while attempts to synthesize the corresponding carbon compound have not reached fruition. This paper presents initial ab initio calculations on the species with M = C and Si and with R = H. Geometries for all species were calculated with the
Soymilk Process, Charles W. Deyoe, William J. Hoover, Lawrence A. Johnson
Soymilk Process, Charles W. Deyoe, William J. Hoover, Lawrence A. Johnson
Lawrence A. Johnson
Process for making a soybeanbased milk analog or soymilk and food products prepared therefrom. The process involves the comminuting of whole soybeans having the hulls thereon; forming a slurry of the comminuted soybeans; simultaneously initiating the inactivation of trypsin inhibitor and lipoxygenase without fixing protein bodies or substantially denaturing the soybean protein; confining the heated slurry until the trypsin inhibitor activity is reduced to a desired value; cooling the slurry; and separating the hulls from the slurry to recover the desired product. The resulting soymilk is an aqueous preparation of the soybean which exhibits minimal destruction of essential amino acids, …
Localization Of Two New Isozyme Loci, Hexl And Tpi4, To Chromosome 3, Jonathan F. Wendel, Charles W. Stuber, Major M. Goodman
Localization Of Two New Isozyme Loci, Hexl And Tpi4, To Chromosome 3, Jonathan F. Wendel, Charles W. Stuber, Major M. Goodman
Jonathan F. Wendel
Recent work with starch gel electrophoresis of coleoptile extracts has indicated that Hexl, the structural locus for the most anodal set of hexokinase isozymes, and Tpi4, which encodes the slowest migrating set of triose phosphate isomerase bands, are located on chromosome 3.
Selection For High And Low Pollenhoarding Honey Bees, Richard L. Hellmich Ii, Jovan M. Kulincevic, Walter C. Rothenbuhler
Selection For High And Low Pollenhoarding Honey Bees, Richard L. Hellmich Ii, Jovan M. Kulincevic, Walter C. Rothenbuhler
Richard L Hellmich
Pollen hoarding by the honey bee can be modified by selection. Two-way selection for honey bees that hoarded high and low levels of pollen in nucleus colonies was made for four generations. Two different lines of bees were produced in which high-line colonies hoarded significantly more pollen than low-line colonies. Rapid separation exhibited by the two lines suggests that the heritability of this trait is high (divergence h2 = 49.5 percent ± 20.3 percent). Genetic gains of the lines were asymmetrical in which substantial progress was made during high-line selection, while little, if any progress was made during low-line selection. …
Mapping Data For 34 Isozyme Loci Currently Being Studied, Jonathan F. Wendel, Charles W. Stuber, Major M. Goodman
Mapping Data For 34 Isozyme Loci Currently Being Studied, Jonathan F. Wendel, Charles W. Stuber, Major M. Goodman
Jonathan F. Wendel
With the recent localization of several new loci, a composite listing of these loci and chromosomal locations has been compiled and is shown in Table 1. Although locations of some of the loci are tentative, many are very precisely located from studies involving 1600 to more than 1900 F2 plants.
Linkage Relationships Between A New Locus, Hex2, And Previously Assigned Loci On Chromosome 6, Jonathan F. Wendel, Charles W. Stuber, Major M. Goodman
Linkage Relationships Between A New Locus, Hex2, And Previously Assigned Loci On Chromosome 6, Jonathan F. Wendel, Charles W. Stuber, Major M. Goodman
Jonathan F. Wendel
Starch gel electrophoresis of maize coleoptile extracts in our laboratory has shown two zones of staining for isozymes of hexokinase. Genetic analyses 9 indicate that the slower migrating set of bands is encoded by the structural gene Hex2 and that the enzyme is monomeric. Recent linkage analyses and work with B-A translocation stocks (generously supplied by Jack Beckett) have allowed for the placement ofHex2 on the long arm of chromosome 6. Its location relative to other markers on 6L was determined from the analysis of two very large F2 populations generated for other reasons.
Twelve New Isozyme Loci In Maize: Progress Report On Chromosomal Locations, The Subunit Composition, And Subcellular Localization Of Their Products, Jonathan F. Wendel, Charles W. Stuber, Major M. Goodman
Twelve New Isozyme Loci In Maize: Progress Report On Chromosomal Locations, The Subunit Composition, And Subcellular Localization Of Their Products, Jonathan F. Wendel, Charles W. Stuber, Major M. Goodman
Jonathan F. Wendel
To improve the degree to which the com genome is biochemically marked, we have expanded the number of enzyme systems analyzed by starch gel electrophoresis. Seven new enzyme systems encoded by a minimum of 16 loci have been added to the 23 loci used for previous work in our laboratory. A wide range of domestic and exotic maize has been screened for variation at these new loci and genetic analysis of variant electromorphs is well under way. Crosses with B-A translocation stocks (kindly provided by Jack Beckett), previously mapped allozyme loci, and in a few cases morphological markers, are being …