Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Environmental Sciences (763)
- Computer Sciences (677)
- Physics (616)
- Chemistry (507)
- Earth Sciences (437)
-
- Engineering (415)
- Life Sciences (410)
- Mathematics (297)
- Social and Behavioral Sciences (278)
- Statistics and Probability (257)
- Oceanography and Atmospheric Sciences and Meteorology (242)
- Education (164)
- Geology (154)
- Astrophysics and Astronomy (149)
- Natural Resources Management and Policy (143)
- Water Resource Management (131)
- Natural Resources and Conservation (130)
- Science and Mathematics Education (124)
- Materials Science and Engineering (116)
- Applied Mathematics (115)
- Arts and Humanities (114)
- Applied Statistics (108)
- Statistical Theory (102)
- Electrical and Computer Engineering (96)
- Physical Chemistry (96)
- Medicine and Health Sciences (91)
- Materials Chemistry (89)
- History (84)
- Databases and Information Systems (79)
- Institution
-
- University of Nebraska - Lincoln (529)
- TÜBİTAK (212)
- University of Nevada, Las Vegas (126)
- Selected Works (121)
- University of Wollongong (113)
-
- William & Mary (100)
- Missouri University of Science and Technology (85)
- COBRA (83)
- Wayne State University (81)
- The University of Maine (77)
- Wright State University (76)
- Louisiana State University (75)
- Old Dominion University (74)
- Chinese Chemical Society | Xiamen University (73)
- Utah State University (72)
- Dartmouth College (68)
- University of Kentucky (68)
- Singapore Management University (63)
- California Polytechnic State University, San Luis Obispo (59)
- University of New Hampshire (56)
- Air Force Institute of Technology (50)
- Syracuse University (49)
- Brigham Young University (48)
- University of Colorado Law School (43)
- Chulalongkorn University (42)
- Department of Primary Industries and Regional Development, Western Australia (42)
- Nova Southeastern University (40)
- Portland State University (38)
- Purdue University (38)
- SelectedWorks (36)
- Keyword
-
- Water (41)
- Climate (28)
- Western Australia (27)
- Kentucky (22)
- Research and Technical Reports (20)
-
- Colorado (19)
- Groundwater (19)
- Nuclear reactors — Materials — Testing (19)
- Salinity (19)
- Climate change (18)
- Eutectic alloys (18)
- Geology (18)
- Lead-bismuth alloys (18)
- Uncertainty (18)
- Agriculture (17)
- Water quality (17)
- Physics (16)
- Corrosion and anti-corrosives (15)
- Lead-bismuth eutectic (15)
- Land use (14)
- Spring (14)
- Mathematics (13)
- Soil (13)
- Well (13)
- CMMB (12)
- Internet (12)
- Nebraska (12)
- Simulation (12)
- Steel — Corrosion (12)
- Virginia (12)
- Publication
-
- United States Department of Agriculture Wildlife Services: Staff Publications (125)
- Faculty Publications (97)
- Turkish Journal of Chemistry (89)
- Faculty of Informatics - Papers (Archive) (86)
- Theses and Dissertations (74)
-
- Journal of Electrochemistry (73)
- Electronic Theses and Dissertations (67)
- Research Collection School Of Computing and Information Systems (59)
- Turkish Journal of Physics (56)
- Journal of Modern Applied Statistical Methods (55)
- Dissertations, Theses, and Masters Projects (52)
- Nebraska Tractor Tests (51)
- United States Geological Survey: Staff Publications (51)
- Physics Faculty Publications (45)
- Thai Environment (42)
- Physics Faculty Research & Creative Works (39)
- Department of Computer Science Technical Reports (38)
- Reports (38)
- Transmutation Sciences Materials (TRP) (36)
- Computer Science Technical Reports (35)
- LSU Doctoral Dissertations (35)
- LSU Master's Theses (35)
- Turkish Journal of Mathematics (35)
- School of Natural Resources: Faculty Publications (33)
- Theses (33)
- Masters Theses (31)
- Chemistry Faculty Publications (30)
- Dartmouth Scholarship (30)
- Dissertations (29)
- Physics - All Scholarship (29)
- Publication Type
Articles 31 - 60 of 3876
Full-Text Articles in Physical Sciences and Mathematics
Seasonal Variation And Ecosystem Dependence Of Emission Factors For Selected Trace Gases And Pm2.5 For Southern African Savanna Fires, S. Korontzi, Darold E. Ward, Ronald A. Susott, Robert J. Yokelson, C. O. Justice, Peter V. Hobbs, E.A. H. Smithwick, Wei Min Hao
Seasonal Variation And Ecosystem Dependence Of Emission Factors For Selected Trace Gases And Pm2.5 For Southern African Savanna Fires, S. Korontzi, Darold E. Ward, Ronald A. Susott, Robert J. Yokelson, C. O. Justice, Peter V. Hobbs, E.A. H. Smithwick, Wei Min Hao
Chemistry and Biochemistry Faculty Publications
[1] In this paper we present the first early dry season (early June-early August) emission factor measurements for carbon dioxide (CO2), carbon monoxide (CO), methane (CH4), nonmethane hydrocarbons (NMHC), and particulates with a diameter less than 2.5 μm (PM2.5) for southern African grassland and woodland fires. Seasonal emission factors for grassland fires correlate linearly with the proportion of green grass, used as a surrogate for the fuel moisture content, and are higher for products of incomplete combustion in the early part of the dry season compared with later in the dry season. Models of …
Dual Stage Microvalue And Method Of Use, Marc J. Madou, Sylvia Daunert
Dual Stage Microvalue And Method Of Use, Marc J. Madou, Sylvia Daunert
Chemistry Faculty Patents
A micro-machined drug delivery device and method of use for the delivery of labile drugs is disclosed. A micro-machined sensing device and method of use is also disclosed. A micro-machined drug delivery and sensing device and method of use is additionally disclosed. All three devices are intended to be inserted into a patient's body. The drug delivery devices allow for the mixing of drug components prior to the release of the mixture into the patient's body where the mixture is labile. The micro-machined sensing device is suitable for monitoring the concentration of a specific chemical in a patient's body fluids …
Multiple Testing. Part Ii. Step-Down Procedures For Control Of The Family-Wise Error Rate, Mark J. Van Der Laan, Sandrine Dudoit, Katherine S. Pollard
Multiple Testing. Part Ii. Step-Down Procedures For Control Of The Family-Wise Error Rate, Mark J. Van Der Laan, Sandrine Dudoit, Katherine S. Pollard
U.C. Berkeley Division of Biostatistics Working Paper Series
The present article proposes two step-down multiple testing procedures for asymptotic control of the family-wise error rate (FWER): the first procedure is based on maxima of test statistics (step-down maxT), while the second relies on minima of unadjusted p-values (step-down minP). A key feature of our approach is the test statistics null distribution (rather than data generating null distribution) used to derive cut-offs (i.e., rejection regions) for these test statistics and the resulting adjusted p-values. For general null hypotheses, corresponding to submodels for the data generating distribution, we identify an asymptotic domination condition for a null distribution under which the …
Where Are The Women Geoscientist Professors?, Mary Anne Holmes, Suzanne O'Connell
Where Are The Women Geoscientist Professors?, Mary Anne Holmes, Suzanne O'Connell
Department of Earth and Atmospheric Sciences: Faculty Publications
Nearly 50 geo- and social scientists recently gathered for a workshop on women in the geosciences. The two-fold purpose was to compile data on the status of women in the geosciences, and to arrive at a consensus on strategies to increase the proportion of women and their diversity in the field. The Workshop on Women in the Geosciences was held September 25-27, 2003, in Washington, D.C.
Prediction Of Dopant Ionization Energies In Silicon: The Importance Of Strain, A. Rockett, Duane D. Johnson, S. V. Khare, B. R. Tuttle
Prediction Of Dopant Ionization Energies In Silicon: The Importance Of Strain, A. Rockett, Duane D. Johnson, S. V. Khare, B. R. Tuttle
Duane D. Johnson
Based on a hydrogenic state and strain changes upon defect charging, we propose a simple, parameter-free model that agrees well with the observed group III and V monovalent-impurity ionization energies in Si, revealing the importance of such strain effects. Changes in lattice strain upon defect charging are obtained via superposition and elasticity theory using atomic relaxations from density functional theory.
Experimenting With Tcpa/Tcg Hardware, Or: How I Learned To Stop Worrying And Love The Bear, John Marchesini, Sean Smith, Omen Wild, Rich Macdonald
Experimenting With Tcpa/Tcg Hardware, Or: How I Learned To Stop Worrying And Love The Bear, John Marchesini, Sean Smith, Omen Wild, Rich Macdonald
Computer Science Technical Reports
Over the last few years, our group has been working on applications of secure coprocessors---but has been frustrated by the limited computational environment and high expense of such devices. Over the last few years, the TCPA (now TCG) has produced a specification for a trusted platform module (TPM)---a small hardware addition intended to improve the overall security of a larger machine (and tied up with a still-murky vision of Windows-based trusted computing). Some commodity desktops now come up with these TPMs. Consequently, we began an experiment to see if (in the absence of a Non-Disclosure Agreement) we could use this …
Multiple Testing. Part I. Single-Step Procedures For Control Of General Type I Error Rates, Sandrine Dudoit, Mark J. Van Der Laan, Katherine S. Pollard
Multiple Testing. Part I. Single-Step Procedures For Control Of General Type I Error Rates, Sandrine Dudoit, Mark J. Van Der Laan, Katherine S. Pollard
U.C. Berkeley Division of Biostatistics Working Paper Series
The present article proposes general single-step multiple testing procedures for controlling Type I error rates defined as arbitrary parameters of the distribution of the number of Type I errors, such as the generalized family-wise error rate. A key feature of our approach is the test statistics null distribution (rather than data generating null distribution) used to derive cut-offs (i.e., rejection regions) for these test statistics and the resulting adjusted p-values. For general null hypotheses, corresponding to submodels for the data generating distribution, we identify an asymptotic domination condition for a null distribution under which single-step common-quantile and common-cut-off procedures asymptotically …
Investigation Of Nanodispersion In Polystyrene-Montmorillonite Nanocomposites By Solid State Nmr, Serge Bourbigot, David L. Vanderhart, Jeffery W. Gilman Sr., Walid Awad, Rick D. Davis, Alexander B. Morgan, Charles A. Wilkie
Investigation Of Nanodispersion In Polystyrene-Montmorillonite Nanocomposites By Solid State Nmr, Serge Bourbigot, David L. Vanderhart, Jeffery W. Gilman Sr., Walid Awad, Rick D. Davis, Alexander B. Morgan, Charles A. Wilkie
Chemistry Faculty Research and Publications
Nanocomposites result from combinations of materials with vastly different properties in the nanometer scale. These materials exhibit many unique properties such as improved thermal stability, reduced flammability, and improved mechanical properties. Many of the properties associated with polymer–clay nanocomposites are a function of the extent of exfoliation of the individual clay sheets or the quality of the nanodispersion. This work demonstrates that solid-state NMR can be used to characterize, quantitatively, the nanodispersion of variously modified montmorillonite (MMT) clays in polystyrene (PS) matrices. The direct influence of the paramagnetic Fe3, embedded in the aluminosilicate layers of MMT, on polymer protons within …
Magnetic And Transport Properties Of The V2– Vi3 Diluted Magnetic Semiconductor Sb2_Xmnxte3, Jeffrey Dyck, P. Svanda, P. Lostak, J. Horak, W. Chen, C. Uher
Magnetic And Transport Properties Of The V2– Vi3 Diluted Magnetic Semiconductor Sb2_Xmnxte3, Jeffrey Dyck, P. Svanda, P. Lostak, J. Horak, W. Chen, C. Uher
Jeffrey Dyck
We have measured electrical and magnetic properties of single crystals of Sb2_xMnxTe3 with x =0 – 0.045 at temperatures of 2 K to 300 K. Hall effect measurements indicate that each manganese atom donates approximately one hole to the valence band. The magnetic susceptibility is paramagnetic down to 2 K, and both Curie–Weiss and Brillouin analyses show that manganese substitutes for Sb and takes the Mn2+ state with S=5/2. Contrary to the case of III–V host matrices, manganese does not stimulate ferromagnetic order in the family of bulk layered V2– VI3 diluted magnetic semiconductors, at least in the range of …
Signature-Based Document Retrieval, A. Chalechale, G. Naghdy, Alfred Mertins
Signature-Based Document Retrieval, A. Chalechale, G. Naghdy, Alfred Mertins
Faculty of Informatics - Papers (Archive)
This paper presents a new approach for document image decomposition and retrieval based on connected component analysis and geometric properties of the labeled regions. The database contains document images with Arabic/Persian text combined with English text, headlines, ruling lines, trademark and signature. In particular, Arabic/Persian signature extraction is investigated using special characteristics of the signature that is fairly different from English signatures. A set of efficient, invariant and compact features is extracted for validation purposes using angular-radial partitioning of the signature region. Experimental results show the robustness of the proposed method.
Sketch-Based Image Retrieval Using Angular Partitioning, A. Chalechale, G. Naghdy, Alfred Mertins
Sketch-Based Image Retrieval Using Angular Partitioning, A. Chalechale, G. Naghdy, Alfred Mertins
Faculty of Informatics - Papers (Archive)
This paper presents a novel approach for sketch-based image retrieval based on low-level features. The approach enables measuring the similarity between a full color image and a simple black and white sketched query and needs no cost intensive image segmentation. The proposed method can cope with images containing several complex objects in an inhomogeneous background. Abstract images are obtained using strong edges of the model image and thinned outline of the sketched image. Angular-spatial distribution of pixels in the abstract images is then employed to extract new compact and effective features using Fourier transform. The extracted features are scale and …
Strong Field Detachment Of A Negative Ion With Non-Zero Angular Momentum: Application To F-, M. V. Frolov, N. L. Manakov, E. A. Pronin, Anthony F. Starace
Strong Field Detachment Of A Negative Ion With Non-Zero Angular Momentum: Application To F-, M. V. Frolov, N. L. Manakov, E. A. Pronin, Anthony F. Starace
Anthony F. Starace Publications
We apply our recently developed, model-independent quantum approach for intense laser detachment of a weakly bound electron to interpret a recent experiment on above-threshold detachment (ATD) of the F- ion. We find that the measured electron energies correspond to the “Keldysh part” of the ATD spectrum, just below the onset of our predicted rescattering plateau. Overall, our predicted ATD spectrum (using a scaled peak intensity and focal averaging) is in excellent agreement with the experimental data, except for certain structures observed for electron energies above 12.6 eV that we attribute to known two-electron resonances of F-. A …
The Use Of Selected Water Quality Parameters To Identify Fecal Coliform Sources In Support Of The Sinking Creek Total Maximum Daily Load., Susana Maria Floresguerra
The Use Of Selected Water Quality Parameters To Identify Fecal Coliform Sources In Support Of The Sinking Creek Total Maximum Daily Load., Susana Maria Floresguerra
Electronic Theses and Dissertations
Sinking Creek, located in upper east Tennessee, is on the 303(d) list for not meeting minimum water quality standards for recreation. A Total Maximum Daily Load (TMDL) for fecal coliforms was developed. The purpose of this study was to investigate the use of water quality parameters to identify areas that contribute to the fecal coliform loading. Concentrations of nitrate-N, orthophosphates, BOD, alkalinity, hardness, and optical brighteners (OB) were monitored at fourteen stations monthly for one year. Site 3 (agricultural region) exhibited the highest average nitrate-N loadings (627.34 mg/sec) and orthophosphate (as PO43-) loadings (84.83 mg/sec). Alkalinity loadings …
Interworking Methodologies For Dcom And Corba., Edwin Kraus
Interworking Methodologies For Dcom And Corba., Edwin Kraus
Electronic Theses and Dissertations
The DCOM and CORBA standards provide location-transparent access to network-resident software through language independent object interfaces. Although the two standards address similar problems, they do so in incompatible ways: DCOM clients cannot use CORBA objects, and CORBA clients cannot utilize DCOM objects, due to incompatible object system infrastructures.
This thesis investigates the performance of bridging tools to resolve the incompatibilities between DCOM and CORBA, in ways that allow clients to cross object system boundaries. Two kinds of tools were constructed and studied: tools that bind clients to services at compile time, and tools that support dynamic client-server bindings. Data developed …
Towards A Taxonomy Of Aspect-Oriented Programming., Mario Bernard Hankerson
Towards A Taxonomy Of Aspect-Oriented Programming., Mario Bernard Hankerson
Electronic Theses and Dissertations
As programs continue to increase in size, it has become increasingly difficult to separate concerns into well localized modules, which leads to code tangling- crosscutting code spread throughout several modules. Thus, Aspect-Oriented Programming (AOP) offers a solution to creating modules with little or no crosscutting concerns. AOP presents the notion of aspects, and demonstrates how crosscutting concerns can be taken out of modules and placed into a centralized location.
In this paper, a taxonomy of aspect-oriented programming, as well as a basic overview and introduction of AOP, will be presented in order to assist future researchers in getting started on …
Measurement Of Prompt Charm Meson Production Cross Sections In Pp̅ Collisions At √S=1.96 Tev, Darin Acosta, Kenneth A. Bloom, Collider Detector At Fermilab Collaboration
Measurement Of Prompt Charm Meson Production Cross Sections In Pp̅ Collisions At √S=1.96 Tev, Darin Acosta, Kenneth A. Bloom, Collider Detector At Fermilab Collaboration
Kenneth Bloom Publications
We report on measurements of differential cross sections d /dpT for prompt charm meson production in pp̅ collisions at √s=1.96 TeV using 5.8±0.3 pb-1 of data from the CDF II detector at the Fermilab Tevatron. The data are collected with a new trigger that is sensitive to the long lifetime of hadrons containing heavy flavor. The charm meson cross sections are measured in the central rapidity region |y|≤1 in four fully reconstructed decay modes: D0→K- π+, D*+→D0 π+, D+→K- π+ π+, …
Monitoring Of Wheel Dressing Operations For Precision Grinding, Li Xue, Fazel Naghdy, C. Cook
Monitoring Of Wheel Dressing Operations For Precision Grinding, Li Xue, Fazel Naghdy, C. Cook
Faculty of Informatics - Papers (Archive)
In grinding operation, on-line process monitoring of dressing will ensure the quality of the grinding wheel and will achieve reproducible surface finish. The results of a study conducted to evaluate the feasibility and effectiveness of Acoustic Emission (AE) sensors in online monitoring of dressing is reported. Two aspects of the process are addressed. The first is the detection of undesired wheel conditions, such as an out-of-round wheel and wheel contour errors. The other is improving the surface finish of the ground workpiece by monitoring the dressing parameters. Experimental results indicate that AE signal can be effectively used to identify the …
Natural History Of The Mole Salamander Ambystoma Talpoideum In Virginia, Michael Scott Hayslett
Natural History Of The Mole Salamander Ambystoma Talpoideum In Virginia, Michael Scott Hayslett
Theses & Honors Papers
The Mole Salamander (Ambystoma talpoideum) has been known from Virginia for over two decades, but no intensive research on this state-rare species had been pursued prior to this project. Various aspects of mole salamander natural history were studied over a seven-year period throughout a seven-county area of central Virginia. New state distribution records for the species were recorded from Amherst, Appomattox, Buckingham, Campbell, Nelson, and Pittsylvania Counties. These records include a range of extension with the most northern occurrence known for this species in the United States.
Drift fence/pitfall trap studies were conducted on three ponds in two …
Decoupling Of Erosion And Precipitation In The Himalayas, D Burbank, Ann Blythe, J Putkonen, B Pratt-Sitaula, E Gabet, M Oskin, A Barros, T Ohja
Decoupling Of Erosion And Precipitation In The Himalayas, D Burbank, Ann Blythe, J Putkonen, B Pratt-Sitaula, E Gabet, M Oskin, A Barros, T Ohja
Ann Blythe
The hypothesis that abrupt spatial gradients in erosion can cause high strain rates in active orogens has been supported by numerical models that couple erosional processes with lithospheric deformation via gravitational feedbacks1, 2, 3. Most such models invoke a 'stream-power' rule, in which either increased discharge or steeper channel slopes cause higher erosion rates. Spatial variations in precipitation and slopes are therefore predicted to correlate with gradients in both erosion rates and crustal strain. Here we combine observations from a meteorological network across the Greater Himalaya, Nepal, along with estimates of erosion rates at geologic timescales (greater than 100,000 yr) …
Linear Perturbations In Brane Gas Cosmology, Scott Watson, Robert H. Brandenberger
Linear Perturbations In Brane Gas Cosmology, Scott Watson, Robert H. Brandenberger
Physics - All Scholarship
We consider the effect of string inhomogeneities on the time dependent background of Brane Gas Cosmology. We derive the equations governing the linear perturbations of the dilaton-gravity background in the presence of string matter sources. We focus on long wavelength fluctuations and find that there are no instabilities. Thus, the predictions of Brane Gas Cosmology are robust against the introduction of linear perturbations. In particular, we find that the stabilization of the extra dimensions (moduli) remains valid in the presence of dilaton and string perturbations.
Increasing Security In Mobile Ad Hoc Networks By Incentives To Cooperate And Secure Routing, Brandy Michelle Tyson
Increasing Security In Mobile Ad Hoc Networks By Incentives To Cooperate And Secure Routing, Brandy Michelle Tyson
Electronic Dissertations and Theses
A mobile ad hoc network is a self-organizing network that relies on the cooperation of participating nodes in order to function properly. In this network, mobile users arrive within the common range of a wireless link and collaborate in constructing the network topology in order to facilitate communication. Mobile ad hoc networks do not rely on any fixed, centralized routing infrastructure, so there is no base station to provide connectivity. This must be provided by the participating nodes. Although mobile ad hoc networks are quite beneficial in sparse areas and rescue operations, they have several properties, such as unreliable wireless …
Little Venice Water Quality Monitoring Quarterly Report #10, Joseph N. Boyer
Little Venice Water Quality Monitoring Quarterly Report #10, Joseph N. Boyer
SERC Research Reports
No abstract provided.
He I Λ10830 As A Probe Of Winds In Accreting Young Stars, Suzan Edwards, William Fischer, John Kwan, L. Hillenbrand, Andrea K. Dupree
He I Λ10830 As A Probe Of Winds In Accreting Young Stars, Suzan Edwards, William Fischer, John Kwan, L. Hillenbrand, Andrea K. Dupree
Astronomy: Faculty Publications
He I 10830 profiles acquired with Keck's NIRSPEC for six young low-mass stars with high disk accretion rates (AS 353A, DG Tau, DL Tau, DR Tau, HL Tau, and SVS 13) provide new insight into accretion-driven winds. In four of the stars, the profiles have the signature of resonance scattering, and they possess a deep and broad blueshifted absorption that penetrates more than 50% into the 1 m continuum over a continuous range of velocities from near the stellar rest velocity to the terminal velocity of the wind, unlike inner wind signatures seen in other spectral features. This deep and …
Spatiotemporal Databases: Models For Attracting Students To Research, Ágnes Bércesné Novák, Peter Revesz, Zsolt Tuza
Spatiotemporal Databases: Models For Attracting Students To Research, Ágnes Bércesné Novák, Peter Revesz, Zsolt Tuza
CSE Conference and Workshop Papers
In higher education professors often make much effort to introduce their students to research. Unfortunately, the present standard database systems curriculum is composed of well-settled subjects that do not lead to research. The challenge is to bring the research frontier closer to students at beginner level. In this paper we describe how it can be done in the area of spatiotemporal databases. We propose a new database systems curriculum and illustrate its benefits by mentioning several highly succsesful student projects in some recent experimental introductory database systems courses that followed the new curriculum.
Anisotropic Splitting Of Intersubband Spin Plasmons In Quantum Wells With Bulk And Structural Inversion Asymmetry, Carsten A. Ullrich, M. E. Flatté
Anisotropic Splitting Of Intersubband Spin Plasmons In Quantum Wells With Bulk And Structural Inversion Asymmetry, Carsten A. Ullrich, M. E. Flatté
Physics Faculty Research & Creative Works
In semiconductor heterostructures, bulk and structural inversion asymmetry and spin-orbit coupling induce a k-dependent spin splitting of valence and conduction subbands, which can be viewed as being caused by momentum-dependent crystal magnetic fields. This paper studies the influence of these effective magnetic fields on the intersubband spin dynamics in an asymmetric n-type GaAs/Al0.3Ga0.7As quantum well. We calculate the dispersions of intersubband spin plasmons using linear-response theory. the so-called D'yakonov-Perel' decoherence mechanism is inactive for collective intersubband excitations, i.e., crystal magnetic fields do not lead to decoherence of spin plasmons. Instead, we predict that the main signature …
Combinatorial Constructions Of 3- And 4-Secure Codes, Y. Wang, Jennifer Seberry, Beata J. Wysocki, Tadeusz A. Wysocki, Willy Susilo, Tianbing Xia, Y. Zhao, Le Chung Tran
Combinatorial Constructions Of 3- And 4-Secure Codes, Y. Wang, Jennifer Seberry, Beata J. Wysocki, Tadeusz A. Wysocki, Willy Susilo, Tianbing Xia, Y. Zhao, Le Chung Tran
Faculty of Informatics - Papers (Archive)
In this paper, 3- and 4-secure codes are constructed from combinatorial designs. Both constant weight and non-constant weight codes are shown.
Equilibrium Problems With Equilibrium Constraints Via Multiobjective Optimization, Boris S. Mordukhovich
Equilibrium Problems With Equilibrium Constraints Via Multiobjective Optimization, Boris S. Mordukhovich
Mathematics Research Reports
The paper concerns a new class of optimization-related problems called Equilibrium Problems with Equilibrium Constraints (EPECs). One may treat them as two level hierarchical problems, which involve equilibria at both lower and upper levels. Such problems naturally appear in various applications providing an equilibrium counterpart (at the upper level) of Mathematical Programs with Equilibrium Constraints (MPECs). We develop a unified approach to both EPECs and MPECs from the viewpoint of multiobjective optimization subject to equilibrium constraints. The problems of this type are intrinsically nonsmooth and require the use of generalized differentiation for their analysis and applications. This paper presents necessary …
Loss-Based Estimation With Cross-Validation: Applications To Microarray Data Analysis And Motif Finding, Sandrine Dudoit, Mark J. Van Der Laan, Sunduz Keles, Annette M. Molinaro, Sandra E. Sinisi, Siew Leng Teng
Loss-Based Estimation With Cross-Validation: Applications To Microarray Data Analysis And Motif Finding, Sandrine Dudoit, Mark J. Van Der Laan, Sunduz Keles, Annette M. Molinaro, Sandra E. Sinisi, Siew Leng Teng
U.C. Berkeley Division of Biostatistics Working Paper Series
Current statistical inference problems in genomic data analysis involve parameter estimation for high-dimensional multivariate distributions, with typically unknown and intricate correlation patterns among variables. Addressing these inference questions satisfactorily requires: (i) an intensive and thorough search of the parameter space to generate good candidate estimators, (ii) an approach for selecting an optimal estimator among these candidates, and (iii) a method for reliably assessing the performance of the resulting estimator. We propose a unified loss-based methodology for estimator construction, selection, and performance assessment with cross-validation. In this approach, the parameter of interest is defined as the risk minimizer for a suitable …
A Study Of The Suitability Of Irobex For High-Speed Exchange Of Large Data Objects, Casey T. Deccio, Joseph Ekstrom, Charles D. Knutson, D. Ryan Partridge, Kevin B. Tew
A Study Of The Suitability Of Irobex For High-Speed Exchange Of Large Data Objects, Casey T. Deccio, Joseph Ekstrom, Charles D. Knutson, D. Ryan Partridge, Kevin B. Tew
Faculty Publications
This paper demonstrates that careful tuning of the OBEX and IrLAP negotiated parameters allows OBEX to scale well for use with large data objects and high transmission rates. Due to the substantial time overhead inherent in link turnarounds, minimizing turnarounds during the transmission of a large object helps to maximimize link efficiency. The IrLAP window size and OBEX packet size significantly impact the number of required turnarounds during the transmission of a large object. When these parameters are properly tuned, maximum throughput can be achieved, and OBEX performs efficiently at high data rates.
A Subgroup Algorithm To Identify Cross-Rotation Peaks Consistent With Non-Crystallographic Symmetry, Ryan H. Lilien, Chris Bailey-Kellogg, Amy C. Anderson, Bruce R. Donald
A Subgroup Algorithm To Identify Cross-Rotation Peaks Consistent With Non-Crystallographic Symmetry, Ryan H. Lilien, Chris Bailey-Kellogg, Amy C. Anderson, Bruce R. Donald
Computer Science Technical Reports
Molecular replacement (MR) often plays a prominent role in determining initial phase angles for structure determination by X-ray crystallography. In this paper, an efficient quaternion-based algorithm is presented for analyzing peaks from a cross-rotation function to identify model orientations consistent with non-crystallographic symmetry (NCS), and to generate NCS-consistent orientations missing from the list of cross-rotation peaks. Our algorithm, CRANS, analyzes the rotation differences between each pair of cross-rotation peaks to identify finite subgroups of NCS. Sets of rotation differences satisfying the subgroup axioms correspond to orientations compatible with the correct NCS. The CRANS algorithm was first tested using cross-rotation peaks …