Motivation: Similarity searching and clustering of chemical compounds by structural similarities are important computational approaches for identifying drug-like small molecules. Most algorithms available for these tasks are limited by their speed and scalability, and cannot handle today's large compound databases with several million ...
PubMed Central
PARALIGN is a rapid and sensitive similarity search tool for the identification of distantly related sequences in both nucleotide and amino acid sequence databases. Two algorithms are implemented, accelerated Smith�Waterman and ParAlign. The ParAlign algorithm is similar to Smith�Waterman in sensitivity, while ...
This web page contains a concept question for introductory physics on the use of strobe diagrams to demonstrate acceleration. Given four different diagrams, users must decide which objects are accelerating. This item can be used as a "Question of The Day" or with an electronic classroom response system (Clickers). Background information and tips to elicit ...
NSDL National Science Digital Library
I examine the cult of accelerator physics, describe the laws which govern its development, compare and contrast it with other similar cults in the past, and search for its driving force. It is a story of sheer power. Not only of grand projects whose scale dwarfs everything we have imagined, whose funds deplete federal treasuries and ...
Energy Citations Database
... similar to that used for radar) to accelerate electrons in a part of the accelerator called the "wave guide," then allows these electrons to collide with a heavy metal target. As ...
MedlinePLUS
... conducted on accelerator facilities, involving zero ... of similar exposures on accelerators. ... IMPACT ACCELERATION, EXPERIMENTAL DATA, HIGH ...
DTIC Science & Technology
Photoproduction of ?-mesons off 3He has been studied via the ? ? 2? and ? ? 3?0 decay modes at the tagged photon beam of the Mainz MAMI accelerator using the combined 4? Crystal Ball/TAPS calorimeter. The main motivation for this experiment was the search for ?-mesic nuclei. A possible signature for such states is a threshold enhancement of coherent ...
NASA Astrophysics Data System (ADS)
Induction accelerating system similar to linear induction accelerators is considered as applied to the acceleration of electron rings. The system consists of a solenoid for preliminary acceleration, a system of pulsed power supply, an induction accelerati...
National Technical Information Service (NTIS)
Science Accelerator Share | E-mail | RSS Archive | RSS | Widget Featured Search: geothermal | Featured Search Archive Help Basic Search � Advanced Search � Search Tips �...
Science.gov Websites
... Consider the following chunk of code: 13 ... The content addressable memory accelerates searches involving boolean patterns while the function ...
Accelerating hardware devices represent a novel promise for improving the performance for many problem domains but it is not clear for which domains what accelerators are suitable. While there is no room in general-purpose processor design to significantly increase the processor frequency, developers are instead resorting to multi-core chips duplicating ...
view is used for searching all possible sources. Search Terms: Search Powered by Deep Web Technologies Deep Web Technologies Explores the Frontiers of the Information Universe...
Search: geothermal | Featured Search Archive Featured Search Archive biofuels cool roofs earth day earthquake fuel cell geothermal global positioning system hybrid vehicles...
Specific problems related to search coil measurements in magnets for particle accelerators are discussed. This includes the coil manufacture and calibration as well as the measurement of the magnetic flux. 12 refs., 3 figs.
Science Journals Connector SCIENCE ACCELERATOR: HOME/SEARCH � ADVANCED SEARCH � ABOUT � RESOURCE DESCRIPTIONS A SCIENCE Accelerator Resource Welcome The primary purpose of...
Argonne National Laboratory U.S. Department of Energy Advanced Photon Source Accelerator Systems Division Search APS ... Search Button About Welcome Overview Visiting the APS...
The acceleration of a gas undergoing ionization in a crossed electric- magnetic field leads to the formation of current sheets similar to those observed in coaxial plasma guns. The dynamics of such sheets is outlined. A mapping of the magnetic field in the vicinity of a current sheet is described. Conventional small search ...
This project aims to understand the characteristics of the free-field strong-motion records that have yielded the 100 largest peak accelerations and the 100 largest peak velocities recorded to date. The peak is defined as the maximum magnitude of the acceleration or velocity vector during the strong shaking. This compilation includes 35 records with peak ...
DOE Information Bridge
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One approach for heating a target to ''Warm Dense Matter'' conditions (similar, for example, to the interiors of giant planets or certain stages in Inertial Confinement Fusion targets), is to use intense ion beams as the heating source (see refs.[6] and [7] and references therein for motivation and accelerator concepts). ...
Several accelerator designs are discussed in search for a greater than 1 TeV electron accelerator. The types considered are linear accelerators, the inverse Cerenkov accelerators, the wiggler (inverse free electron laser), plasma accelerators, and the grating ...
BackgroundLarge-scale sequence comparison is a powerful tool for biological inference in modern molecular biology. Comparing new sequences to those in annotated databases is a useful source of functional and structural information about these sequences. Using software such as the basic local alignment search tool (BLAST) or HMMPFAM to identify statistically significant matches ...
Science Accelerator Share | E-mail | RSS Archive | RSS | Widget Featured Search: geothermal | Featured Search Archive RSS Archive 2007-2009 � 2010-2011 Science Accelerator...
(STI). Q: What does the Science Accelerator search? A: The Science Accelerator searches deep Web content of DOE-generated research and DOE-related resources containing pertinent...
Execution of the integrated TIGER series (ITS) of coupled electron/photon Monte Carlo radiation transport codes has been accelerated by modifying the FORTRAN source code for more efficient computation. Each member code of ITS was benchmarked and profiled with a specific test case that directed the acceleration effort toward the most computationally ...
The challenge of similarity search in massive DNA sequence databases has inspired major changes in BLAST-style alignment tools, which accelerate search by inspecting only pairs of sequences sharing a common short �seed, � or pattern of matching residues. Some of these changes raise the possibility of improving ...
E-print Network
... NAVAIR Phase II SBIR contract to accelerate the transition of this distributed search technology. Descriptors : *SEARCHING, *TARGET DETECTION ...
at Widgetbox! Not seeing a widget? (More info) Search: provides the capability to search recent and legacy science research and development results, project descriptions,...
Search Criteria: Search Field: All > Results : All > Search Term: (RFQ Accelerators) [x]. Sort results by: NASA Center | Date Added to NTRS | Publication ...
NASA Website
Potential ion acceleration and plasma outflow processes at Mercury are presently discussed in the context of ion acceleration and outflow observations in the terrestrial magnetosphere and topside ionosphere. The Mercury acceleration and outflow processes are anticipated to have many similarities with these ...
A high-intensity cyclic induction electron accelerator at (40 - 200) MeV is described. A magnetic system of the accelerator is similar to that of a weakly focusing synchrotron. The accelerating ferromagnetic cores and input and output devices are placed i...
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BackgroundTerabyte-scale collections of string-encoded data are expected from consortia efforts such as the Human Microbiome Project http://nihroadmap.nih.gov/hmp. Intra- and inter-project data similarity searches are enabled by rapid k-mer matching strategies. Software applications for sequence database partitioning, guide tree estimation, molecular ...
Terabyte-scale collections of string-encoded data are expected from consortia efforts such as the Human Microbiome Project (http://nihroadmap.nih.gov/hmp). Intra- and inter-project data similarity searches are enabled by rapid k-mer matching strategies. Software applications for sequence database partitioning, guide tree estimation, molecular ...
When searching sequence databases for RNAs, it is desirable to score both primary sequence and RNA secondary structure similarity. Covariance models (CMs) are probabilistic models well-suited for RNA similarity search applications. However, the computational complexity of CM dynamic programming alignment algorithms ...
The search for new acceleration schemes and technologies has in general, been restricted to a search for higher gradient acceleration, and it has been motivated by the aim of reducing the length, and presumably the cost, of new high energy facilities. In particular, it has been argued that very high energy linear ...
We present a novel algorithm to accelerate feature based registration, and demonstrate the utility of the algorithm for the alignment of large transmission electron microscopy (TEM) images to create 3-D images of neural ultrastructure. In contrast to the most similar algorithms, which achieve small computation times by truncated ...
PubMed
Chemical similarity calculation plays an important role in compound library design, virtual screening, and "lead" optimization. In this manuscript, we present a novel GPU-accelerated algorithm for all-vs-all Tanimoto matrix calculation and nearest neighbor search. By taking advantage of multicore GPU architecture and CUDA parallel ...
An undergraduate organic chemistry experiment demonstrating real-life application of GC-MS to arson accelerant identification is described. Students are given the task of comparing a sample recovered from a "crime scene" to that from a "suspect's clothing". Accelerants subjected to different conditions are recovered using a quick and simple negative ...
ERIC Educational Resources Information Center
These newly-formed ions are accelerated out of the ionization chamber by an electric field. The speeds to which the ions can be accelerated by the electric ...
We compare three different methods for direct energy minimization in electronic structure calculations where the gradient of the energy functional with respect to the molecular orbitals is available. These methods make use of the preconditioned gradient to increase robustness. An orbital transformation is used to ensure that the orthogonality constraint on the orbitals remains satisfied when using ...
We present new limits on low mass accelerator-produced pointlike Dirac magnetic monopoles trapped and bound in matter surrounding the D0 collision region of the Tevatron at Fermilab (experiment E-882). In the context of a Drell-Yan mechanism, we obtain cross section limits for the production of monopoles with magnetic charge values of 1, 2, 3, and 6 times the minimum Dirac ...
Work by the US Bureau of Mines is reported in which a controlled burnout was carried out at an abandoned shallow mine which had been on fire since the 1960s. The burnout is a controlled acceleration of a typical mine fire, achieved by drawing air into the mine from the surface resulting in complete combustion in a comparatively short time. The success of the operation has led ...
Match Acceleration Traces to Cedar Point Rides. C. D. National Aeronautics and ... ride is different, but the acceleration pattern may look similar. Think carefully ...
Similar to the power leads of accelerator superconducting magnets, the power couplers of accelerator superconducting cavities are components that link room temperature to superfluid helium temperature for the purpose of energy transfer. Instead of conduct...
Managing Biomedical Image Metadata for Search and Retrieval of Similar Images Daniel Korenblum,1 (ROIs) stored as metadata are automatically rendered onto preview images included in search results processing and search.3 As a result, it is currently not possible to retrieve images based on their features
A few of the experimental problems of searching for the lepton non-conserving decay K/sub L//sup O/ ..-->.. ..mu..e are discussed in the light of the experience of BNL E791. This experiment was designed to have high rate capability and excellent background rejection; as such it provides information useful in evaluating designs for similar experiments at ...
We consider nuclei produced in core collapse supernovas and subjected to a high neutron flux. We show that an accelerator mass spectrometry experiment that searches for traces of anomalous iron isotopes could set limits of the order of 10{sup {minus}20}{endash}10{sup {minus}25} on (or perhaps discover) Pauli principle violation by neutrons. A ...
... Similarity search then corresponds to a range search over the data ... This paper introduces the hybrid tree a multidimensional data structure for ...
... In [16], a global search similar to that of spectral-MUSIC [8] is performed on ... In spectral MUSIC, the search is performed ...
A search of the Moon for traces of sodium vapor similar to that found on Mercury was made with a multiprism spectroscope. The results were negative.
The search for new methods to accelerate particle beams to high energy using high gradients has resulted in a number of candidate schemes. One of these, wakefield acceleration, has been the subject of considerable R&D in recent years. This effort has resu...
Several applications of accelerator-based mass spectroscopy are reviewed. Among these are the search for unknown species, determination of comogenic radioisotopes in natural materials and measurements of half-lifes, especially those of significance to dating. Accelerator parameters and techniques of importance for these applications ...
Science Accelerator Share | E-mail | RSS Archive | RSS | Widget Featured Search: geothermal | Featured Search Archive DOE Research � Research of Interest to DOE Below you will...
A weakly interacting dark matter particle may be very difficult to discover at an accelerator because it either (1) is too heavy, (2) has no standard model gauge interactions, or (3) is almost degenerate with other states. In each of these cases, searches...
A method for accelerating searches for optimal control of photonic reagents is provided. Closed loop feedback is applied to control a quantum system. A direct search deterministic technique is used for refining said closed loop feedback control. A quantum...
This paper contains information information on: accelerator and detector; QCD studies; studies of the electroweak force; The search for the top quark; {beta} physics at hadron colliders; and the search for exotic objects and prospects for the future.
hide Your Search Criteria. Subject Terms: PHOSPHORUS OXIDES .... The resultant exothermic production of phosphorus oxides and acids, with accelerated H-atom ...
Berkeley national Laboratory, Sonoma State University Search the SNAP site: Search HOME SCIENCE PROJECT TEAM (private) EDUCATION AND PUBLIC INFO The SuperNova Acceleration Probe...
... line-search and trust-region methods are two important classes of descent ... Optimization Online is supported by the Mathematical Programming Society. ...
Descriptions of Federally Funded Research Awards Home | Advanced Search | Database Descriptions | Alerts | Help | FAQ | Site Map | Contact Us A SCIENCE Accelerator Resource Search...
Experiments on the search for magnetic monopoles in cosmic radiation, in different substances on the Earth and at accelerators are described. It is noted that the flux of cosmic monopoles is very small and its reliable registration requires too much effor...
as before. While the pool of results is larger, those results are still ranked by relevancy to your search term(s). Plus, in returning these results, "exact phrase" search...
of Energy DOE Green Energy A SCIENCE Accelerator Resource Search the DOE Green Energy knowledge base: Search DOE Green Energy is your gateway to green energy results from thousands...
Argonne National Laboratory High Energy Physics Division Argonne Wakefield Accelerator (AWA) Staff Publications Search Argonne ... Search Argonne Home > High Energy Physics...
Argonne National Laboratory HEP Division Staff Publications Search Argonne ... Search Argonne Home > High Energy Physics Division Experimental Research Accelerator R&D Theoretical...
Argonne National Laboratory High Energy Physics Division Argonne Wakefield Accelerator (AWA) Staff Publications Top of Form Search Argonne ... Search Argonne Home > High Energy...
(DLA) Structures Metamaterial for Accelerator Applications Power Extractor Ramped Bunch Train Science Careers in Search of Women 2008 Science Careers in Search of Women 2007 U.S....
The report presents the results of experimental and theoretical investigations of high velocity modes of the ram accelerator, a ramjet-in-tube projectile accelerator whose principle of operation is similar to that of a supersonic airbreathing ramjet. The ...
Water jets are produced by vertically accelerating a rotating cone partially filled with water. It is shown that the acceleration of the parabolic meniscus results in a motion similar to that observed in a shaped explosive charge (Monroe jet). Accleration...
This report addresses some issues of the pulse shape optimization and describes main features of the accelerating system comprising an accelerating structure similar to that of a linear induction accelerator (LIA) and a pulser that drives it.
One scheme is considered, acceleration of a ring between coaxial electrodes by a B/sub theta/ field as in a coaxial rail-gun. If the electrodes are conical, a ring accelerated towards the apex of the cone undergoes self-similar compression (focussing) dur...
...receive interest for any resulting acceleration of tax liability. The computation...computing taxable income. (D) Revenue acceleration rule. Section 460...Similarly, because of the revenue acceleration rule of section...
Code of Federal Regulations, 2011
...structure during testing, pelvic lateral acceleration injury criteria must be substantiated by...similar seat installation. Pelvic lateral acceleration may not exceed 130g. Pelvic acceleration data must be processed as defined in...
is a global science gateway-accelerating scientific discovery and progress through a multilateral partnership to enable federated searching of national and...
... DTIC Online - This search queries the DTIC ... the Production and Distribution Research Center (PDRC) at ... These cuts are thus termed 'feasibility' cuts. ...
... Descriptors : , (*GUIDED MISSILE BATTERIES, RELIABILITY), TELEMETER SYSTEMS, ACCELERATION, VIBRATION, HIGH ALTITUDE ...
The materials may be used on the International Space Station, ... such as nuclear accelerators, nuclear power plants, nuclear submarines and medical ...
... DTIC Online - This search queries the DTIC Online Public Web site. ... Accession Number : ADA540606. Title : Learning Organizations. ...
... Such trees are designed to exploit prefetching to accelerate two important operations on B+ Tree indices: searches and range scans. ...
... This search queries the DTIC Online Public Web ... MANAGEMENT, SYMPOSIA, EXPERT SYSTEMS, COMPUTERIZED SIMULATION, CORROSION. ...
In an earlier report they have reviewed four major rules to design the lattice of Fixed-Field Alternating-Gradient (FFAG) accelerators. One of these rules deals with the search of the Adjusted Field Profile, that is the field non-linear distribution along the length and the width of the accelerator magnets, to compensate for the ...
that they have similar acceleration performance and meet range requirements to give a fair comparison based on similar utility to the end user. Figure 3: Gasoline price forecast...
National Renewable Energy Laboratory (NREL)
started, as the program is set up like a typical search engine, with a text field for the searcher to enter keywords. Similarly, search results ...
In an earlier publication we considered acceleration of plasma rings (Compact Torus). Several possible accelerator configurations were suggested and the possibility of focusing the accelerated rings was discussed. In this paper we consider one scheme, acceleration of a ring between coaxial electrodes by a B/sub ...
By treating the traveIing-wave pump as a quasi--steady-state plasma accelerator, a similarity is shown between the equations of plasma motion in a traveling wave pump and in a crossed-field accelerator. Thus, studies of the performance of a crossed-field accelerator may be generalized to yield performance ...
A similarity theory is developed for ultra-relativistic laser-plasmas. It is used to compare and optimize possible regimes of three-dimensional wake field acceleration. The optimal scalings for laser wake field electron acceleration are obtained analytically. The main message of the present work is that the bubble ...
Two carts start at rest on similar air tracks as shown in the animation (position is in meters and time is in seconds).
... The mixture was chosen in conformity with the tendency to perform accelerated tests in media simulating pickling solutions used in pickling similar ...
One approach for heating a target to ''Warm Dense Matter'' conditions (similar, for example, to the interiors of giant planets or certain stages in inertial confinement fusion targets), is to use intense ion beams as the heating source (see refs.[6] and [7] and references therein for motivation and accelerator concepts). ...
The keyword search page functions similar to most search engines (e.g., ... The keyword search results page leaves your search terms in the box so you can ...
The University of Chicago instrumnents on board the Mariner 10 spacecraft bound for Mercury have measured energy spectra and fluxes of electrons from 0.18 to 30 million electron volts and protons from 0.5 to 68 million electron volts along the plasma wake and in the bow shock regions associated with Venus. Unusually quiet solar conditions and improved instrumentation made it possible to ...
Basic Local Alignment Search Tool (BLAST) is a standard computer application that molecular biologists use to search for sequence similarity in genomic databases. This report describes the implementation of an FPGAbased hardware implementation designed to accelerate the BLAST algorithm. FPGA-based custom computing ...
The utilization of parallel imaging permits increased MR acquisition speed and efficiency; however, parallel MRI usually leads to a deterioration in the signal-to-noise ratio when compared with otherwise equivalent unaccelerated acquisitions. At high accelerations, the parallel image reconstruction matrix tends to become dominated by one principal component. This has been ...
Cosmic rays are ubiquitous in space, and are apparently present wherever the matter density is small enough that they are not removed by collisions with ambient particles. The essential similarity of their energy spectra in many different regions places significant general constraints on the mechanisms for their acceleration and confinement. Diffusive ...
The acceleration of polarized beams in circular accelerators is complicated by the numerous depolarizing spin resonances. Using a partial Siberian snake and a rf dipole that ensure stable adiabatic spin motion during acceleration has made it possible to accelerate polarized protons to 25 GeV at the Brookhaven AGS. ...
High energy polarized beam collisions will open up the unique physics opportunities of studying spin effects in hard processes. However, the acceleration of polarized beams in circular accelerators is complicated by the numerous depolarizing spin resonances. Using a partial Siberian Snake and a rf dipole that ensure stable adiabatic spin motion during ...
VisSearch is a collaborative Web searching environment intended for sharing Web search results among people with similar interests, such as college students taking the same course. It facilitates students' Web searches by visualizing various Web searching processes. It also ...
