Comprehensive focusing analysis of various Fresnel zone plates
Jahns, Jürgen
Comprehensive focusing analysis of various Fresnel zone plates Qing Cao and Ju¨rgen Jahns Optische and the linear superposition principle, of the focusing performances of various Fresnel zone plates. Many similarity between Fresnel zone plates and multilevel diffractive lenses, most of the obtained results
Reference Phase of Fresnel Zone Plates
G. W. Webb
2003-02-28T23:59:59.000Z
The standard zone plate assumes that the shortest ray connecting a radiation source and a detection point has a phase of 0 deg thereby defining a reference phase. Here we examine the experimental consequences of varying this reference phase from 0 deg to 360 deg. It is concluded that reference phase is an intrinsic and useful property of zone plates.
Demonstration of 12 nm resolution Fresnel zone plate lens based soft x-ray microscopy
Chao, W.
2010-01-01T23:59:59.000Z
of 12 nm Resolution Fresnel Zone Plate Lens based Soft X-raynanofabrication process for Fresnel zone plate lenses. Theoptical performance of Fresnel zone plate lens based imaging
Diffraction theory for azimuthally structured Fresnel zone plate
Jahns, Jürgen
Diffraction theory for azimuthally structured Fresnel zone plate Thordis Vierke and Jürgen Jahns A conventional Fresnel zone plate (FZP) consists of concentric rings with an alternating binary transmission of zero and one. In an azimuthally structured Fresnel zone plate (aFZP), the light transmission
Modified Fresnel zone plates that produce sharp Gaussian focal spots
Jahns, Jürgen
Modified Fresnel zone plates that produce sharp Gaussian focal spots Qing Cao and Ju¨rgen Jahns Fresnel zone plate that can produce an approximate Gaussian focal spot is proposed for the focusing of 7.7 nm can be produced by a modified Fresnel zone plate with a minimum structure size of 30 nm
Double patterning HSQ processes of zone plates for 10 nm diffraction limitedperformance
Chao, Weilun; Kim, Jihoon; Anderson, Erik H.; Fischer, Peter; Rekawa, Senajith; Attwood, David T.
2009-01-09T23:59:59.000Z
In e-beam lithography, fabrication of sub-20 nm dense structures is challenging. While there is a constant effort to develop higher resolution resist processes, the progress of increasing pattern density is slow. For zone plates, consisting of dense lines and spaces, the outermost zone width has been limited to slightly less than 20 nm due to effects such as low aerial image contrast, forward scattering, intrinsic resist resolution, and development issues. To circumvent these effects, we have successfully developed a new double patterning HSQ process, and as a result, we have fabricated zone plates of 10 and 12 nm using the process. We previously developed a double patterning process in which a dense zone plate pattern is sub-divided into two semi-isolated, complementary zone set patterns. These patterns are fabricated separately and then overlaid with high accuracy to yield the desired pattern. The key to success with this process is the accuracy of the overlay. For diffraction-limited zone plates, accuracy better than one-third of the smallest zone width is needed. In our previous work, the zone set patterns were formed using PMMA and gold electroplating, which were overlaid and aligned to the zero-level mark layer with sub-pixel accuracy using our internally developed algorithm. The complete zone plate fabrication was conducted in-house. With this process, we successfully fabricated zone plates of 15 nm outermost zone. Using this zone plate, we were able to achieve sub-15 nm resolution at 1.52 nm wavelength, the highest resolution ever demonstrated in optical microscopy at that time. We attempted to extend the process to fabricating 12 nm and smaller zones. However, the modest PMMA contrast, combined with a relatively large electron beam size compared to the target feature sized limited the process latitude. To overcome this problem, we developed a new overlay process based on high resolution negative tone resist of hydrogen silsesquioxane (HSQ). With the development in TMAH at 45 C, we can reliably achieve zone width as small as 8 nm with negligible line edge roughness in the semi-dense zone set. Such narrow zones in HSQ, however, detach easily from the gold plating base substrate needed for the electroplating step. We developed a process to condition the gold substrate with (3-mercaptopropyl) trimethoxysilane, or 3-MTP, which can form a homogeneous hydroxylation surface on gold surface and bond with hydroxyl in HSQ. Fig 2 shows the basic process steps of the double patterning HSQ process. Unlike the PMMA process, both zone sets are formed in HSQ and overlaid, and the complete zone plate pattern is converted to gold using electroplating in the final step. Using the new process, we successfully realized zone plates of 10 nm and 12 nm outermost zones. Fig. 3 shows the SEM micrographs of the zone plates outer regions. The zone plates are 30 nm thick in gold. To the best of our knowledge, these zone plates have the smallest zonal features ever fabricated using e-beam lithography. The complete zone plate fabrication was conducted in-house, using our vector scan electron beam lithography tool, the Nanowriter, which has a measured beam diameter of 6.5 nm (FWHM) at 100 keV. An internally developed, sub-pixel alignment algorithm, based on auto/cross-correlation methods, was used for the overlay. A 12 nm zone plate was tested with a full-field transmission x-ray microscope at the LBNL's Advanced Light Source. Fig. 4 shows an x-ray image of a 40 nm thick gold radial spoke pattern taken with the zone plate at 1.75 nm wavelength (707eV, FeL3 edge), along with the scanning transmission electron micrograph of same object. Numerous small features in the object can be seen in the x-ray image. Data analysis indicates that a near diffraction limited performance was achieved using the zone plate. In our presentation, we will discuss the details and subtleties of the overlay fabrication as well as the zone plate image results.
Nanofocusing of soft X-ray laser pulses with Fresnel zone plate and its applications
x Nanofocusing of soft X-ray laser pulses with Fresnel zone plate and its applications 699220056 #12;#12;i keep the faith #12;ii 200 0.16 (Fresnel zone plate) X 100.3 ................................................ 37 40 #12;1 1.1 NA X X (Fresnel zone plate) X (Fresnel zone plate) X #12;2 1
The application of Fresnel zone plate based projection in optofluidic microscopy
Yang, Changhuei
The application of Fresnel zone plate based projection in optofluidic microscopy Jigang Wu the use of the Fresnel zone plate (FZP) based projection in OFM as a cost- effective and compact means objects with a Fresnel-zone-plate aperture," J. Opt. Soc. Am. 64, 134-137 (1974). 9. M. Young, "Zone
Volume Fresnel zone plates fabricated by femtosecond laser direct writing Pornsak Srisungsitthisunti
Xu, Xianfan
Volume Fresnel zone plates fabricated by femtosecond laser direct writing Pornsak October 2006; accepted 29 November 2006; published online 2 January 2007 In this letter, volume Fresnel. A volume zone plate consists of a number of layers of Fresnel zone plates designed to focus light together
Accurate and fast simulation of Fresnel zone plates and multi-level diffractive lenses
Jahns, Jürgen
Accurate and fast simulation of Fresnel zone plates and multi-level diffractive lenses Qing Cao, such as various Fresnel zone plates [1, 2] and muti-level diffractive lenses [3], can be used for focusing and fast simulation of various Fresnel zone plates and multi-level diffractive lenses. As two tests, we
Modified Fresnel zone plates with sharp Gaussian focal spots Qing Cao and Jurgen Jahns
Jahns, Jürgen
Modified Fresnel zone plates with sharp Gaussian focal spots Qing Cao and J¨urgen Jahns Traditional Fresnel zone plates (TFZPs) and photon sieves [1, 2, 3] can be used for the focusing and imaging of soft x.e. a modified Fresnel zone plate, MFZP) can realized the same functions as a photon sieve. In particular, we
Scanning microscopy using a short-focal-length Fresnel zone plate
Scanning microscopy using a short-focal-length Fresnel zone plate Ethan Schonbrun,* Winnie N. Ye demonstrate a form of scanning microscopy using a short-focal-length Fresnel zone plate and a low-NA relay. In this scheme, parallel scanning microscopy using a Fresnel zone-plate array would require only a single spatial
Modified composite Fresnel zone plates with high numerical apertures Qing Cao and Jurgen Jahns
Jahns, Jürgen
Modified composite Fresnel zone plates with high numerical apertures Qing Cao and J¨urgen Jahns Traditional Fresnel zone plates (TFZPs) can be used for the focusing and imaging of soft x-rays and EUV proposed the modified Fresnel zone plates that can produce sharp Gaussian focal spots (we call them
Diffraction theory for azimuthally structured Fresnel zone plate Thordis Vierke and Jurgen Jahns
Jahns, Jürgen
Diffraction theory for azimuthally structured Fresnel zone plate Thordis Vierke and J¨urgen Jahns on the classical Fresnel zone plate (FZP) [1]. A simple FZP consists of alternating opaque and transparent rings Fresnel zone plate but to add bridges that hold the zones in place [4], see Fig. 1 right. We refer
New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
made with the XM-1's current 25-nm MZP, the new MZP was able to obtain sharp images of lines a mere 15 nm apart-where the older zone plate had seen only a featureless field of...
The development of a prototype Zone-Plate-Array Lithography (ZPAL) system
Patel, Amil Ashok, 1979-
2004-01-01T23:59:59.000Z
The research presented in this paper aims to build a Zone-Plate-Array Lithography (ZPAL) prototype tool that will demonstrate the high-resolution, parallel patterning capabilities of the architecture. The experiment will ...
Extraordinary optical transmission and vortex excitation by periodic arrays of Fresnel zone plates
Roszkiewicz, A
2013-01-01T23:59:59.000Z
Extraordinary optical transmission and good focusing properties of a two-dimensional scattering structure is presented. The structure is made of Fresnel zone plates periodically arranged along two orthogonal directions. Each plate consists of two ring-shaped waveguides supporting modes that match the symmetry of a circularly polarized incident plane wave. High field concentration at the focal plane is obtained with short transverse and long longitudinal foci diameters. Optical vortex excitation in a paraxial region of the transmitted field is also observed and analysed in terms of cross-polarisation coupling. The structure presented may appear useful in visualization, trapping and precise manipulations of nanoparticles.
New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5(Million Cubic Feet) Oregon (Including Vehicle Fuel) (Million Cubic Feet) Natural Gas Delivered toNew Research on11:04am AddthisPrice21New Zone Plate
New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5(Million Cubic Feet) Oregon (Including Vehicle Fuel) (Million Cubic Feet) Natural Gas Delivered toNew Research on11:04am AddthisPrice21New Zone PlateNew
Progress in the fabrication of high aspect ratio zone plates by soft x-ray lithography.
Divan, R.; Mancini, D. C.; Moldovan, N. A.; Lai, B.; Assoufid, L.; Leondard, Q.; Cerrina, F.
2002-08-13T23:59:59.000Z
Soft x-ray lithography technology has been applied to fabrication of phase shifting Fresnel Zone Plate (FZP's) for hard x-rays. Effects of the exposure conditions, developing system, and electroplating process parameters on line width and aspect ratio have been analyzed. The process has been optimized and an aspect ratio of 11 has been achieved for 110 nm outermost zone width. SEM and AFM have been used for preliminary metrology of the FZPs. The FZP optical performance was characterized at 8 keV photon energy at the 2-ID-D beam line at the Advanced Photon Source. Focusing efficiencies of 23% for FZPs apertures to 100 microns and 18% for 150-micron-diameter apertures have been obtained. The parameters of the fabricated FZP are in good agreement with the predicted values.
DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)
Gleber, Sophie -Charlotte; Wojcik, Michael; Liu, Jie; Roehrig, Chris; Cummings, Marvin; Vila-Comamala, Joan; Li, Kenan; Lai, Barry; Shu, Deming; Vogt, Stefan
2014-11-05T23:59:59.000Z
Focusing efficiency of Fresnel zone plates (FZPs) for X-rays depends on zone height, while the achievable spatial resolution depends on the width of the finest zones. FZPs with optimal efficiency and sub-100-nm spatial resolution require high aspect ratio structures which are difficult to fabricate with current technology especially for the hard X-ray regime. A possible solution is to stack several zone plates. To increase the number of FZPs within one stack, we first demonstrate intermediate-field stacking and apply this method by stacks of up to five FZPs with adjusted diameters. Approaching the respective optimum zone height, we maximized efficiencies formore »high resolution focusing at three different energies, 10, 11.8, and 25 keV.« less
An LED pulser for measuring photomultiplier linearity
Friend, M; Quinn, B
2011-01-01T23:59:59.000Z
A light-emitting diode (LED) pulser for testing the low-rate response of a photomultiplier tube (PMT) to scintillator-like pulses has been designed, developed, and implemented. This pulser is intended to simulate 80 ns full width at half maximum photon pulses over the dynamic range of the PMT, in order to precisely determine PMT linearity. This particular design has the advantage that, unlike many LED test rigs, it does not require the use of multiple calibrated LEDs, making it insensitive to LED gain drifts. Instead, a finite-difference measurement is made using two LEDs which need not be calibrated with respect to one another. These measurements give a better than 1% mapping of the response function, allowing for the testing and development of particularly linear PMT bases.
Luminosity Measurement at the International Linear Collider
Iftach Sadeh
2010-10-28T23:59:59.000Z
The International Linear Collider (ILC) is a proposed electron-positron collider with a center-of-mass energy of 500~GeV, and a peak luminosity of $2 \\cdot 10^{34}~\\mathrm{cm}^{-2}\\mathrm{s}^{-1}$. The ILC will complement the Large Hadron Collider, a proton-proton accelerator, and provide precision measurements, which may help in solving some of the fundamental questions at the frontier of scientific research, such as the origin of mass and the possible existence of new principles of nature. The linear collider community has set a goal to achieve a precision of $10^{-4}$ on the luminosity measurement at the ILC. This may be accomplished by constructing a finely granulated calorimeter, which will measure Bhabha scattering at small angles. The Bhabha cross-section is theoretically known to great precision, yet the rate of Bhabha scattering events, which would be measured by the luminosity detector, will be influenced by beam-beam effects, and by the inherent energy spread of the collider. The electroweak radiative effects can be calculated to high precision and partially checked with events with final state photon radiation by distinguishing between the observable energy deposits of electrons and of photons in the luminosity calorimeter, using a clustering algorithm. In order to achieve the design goal, the geometrical parameters of the calorimeter need to be reevaluated. This must be done in a generalized manner, so as to facilitate future modifications, the need for which is foreseen, due to expected changes in the detector concept. This work demonstrates that the clustering approach is viable, and that a luminosity calorimeter may be designed to match the precision requirements on the luminosity measurement.
Electronic Non-Contacting Linear Position Measuring System
Post, Richard F. (Walnut Creek, CA)
2005-06-14T23:59:59.000Z
A non-contacting linear position location system employs a special transmission line to encode and transmit magnetic signals to a receiver on the object whose position is to be measured. The invention is useful as a non-contact linear locator of moving objects, e.g., to determine the location of a magnetic-levitation train for the operation of the linear-synchronous motor drive system.
Coherent versus measurement feedback: Linear systems theory for quantum information
Naoki Yamamoto
2014-10-10T23:59:59.000Z
To control a quantum system via feedback, we generally have two options in choosing control scheme. One is the coherent feedback, which feeds the output field of the system, through a fully quantum device, back to manipulate the system without involving any measurement process. The other one is the measurement-based feedback, which measures the output field and performs a real-time manipulation on the system based on the measurement results. Both schemes have advantages/disadvantages, depending on the system and the control goal, hence their comparison in several situation is important. This paper considers a general open linear quantum system with the following specific control goals; back-action evasion (BAE), generation of a quantum non-demolished (QND) variable, and generation of a decoherence-free subsystem (DFS), all of which have important roles in quantum information science. Then some no-go theorems are proven, clarifying that those goals cannot be achieved by any measurement-based feedback control. On the other hand it is shown that, for each control goal, there exists a coherent feedback controller accomplishing the task. The key idea to obtain all the results is system theoretic characterizations of BAE, QND, and DFS in terms of controllability and observability properties or transfer functions of linear systems, which are consistent with their standard definitions.
Impulsive observer-based control for linear systems using irregularly sampled measurements
Paris-Sud XI, Université de
Impulsive observer-based control for linear systems using irregularly sampled measurements Y linear state feedback controller and an impulsive observer to provide an estimate the non-measured states, which are subsequently fed back in the control algorithm. We consider linear systems that can
Simultaneous energy distribution and ion fraction measurements using a linear time A technique for simultaneous energy distribution and ion fraction measurements using a linear time Laboratory's Multicharged Ion Research Facility. Energy distributions of the scattered projectiles
Optical Measurement of the Non-linear Focusing of Sound in Liquid Helium 4
Caupin, FrÃ©dÃ©ric
Optical Measurement of the Non-linear Focusing of Sound in Liquid Helium 4 X. Chavanne, S. Balibar have measured the amplitude of 1MHz acoustic waves focused in liquid helium 4. Our resolution is 10 the reflec- tion of light at the glass/helium interface, which depends on the refractive index of the liquid
The measurement of non-linear damping in metal-matrix composites
Ray, Sourav
1994-01-01T23:59:59.000Z
degree), P55Gr/Al-6061 composite. A popular method for measuring damping is the free-decay of flexural vibrations of a cantilevered beam. The strain field in a cantilevered beam is inhomogeneous. For materials whose damping is non-linear, the measured...
Measurement of isotope ratio of Ca{sup +} ions in a linear Paul Trap
Hashimoto, Y.; Minamino, K.; Nagamoto, D.; Hasegawa, S. [Department of Quantum Engineering and Systems Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan)
2009-03-17T23:59:59.000Z
Measurement of isotope ratios of Calcium is very useful in many fields. So we demonstrated the measurement of isotope ratios of {sup 40}Ca{sup +}(abundance 96.4%) to {sup 44}Ca{sup +}(2.09%) ions in a linear Paul trap with several laser lights tuning to the isotope shifts. And we found that the experimental parameters had large influences on the measurement of the isotope ratios.
Measurement of Higgs Anomalous Coupling with H->WW* at International Linear Collider
Yosuke Takubo; Katsumasa Ikematsu; Nobuchika Okada; Robert N. Hodgkinson; Keisuke Fujii
2010-06-17T23:59:59.000Z
The measurement of the Higgs coupling to W bosons is an important program at the international linear collider (ILC) to search for the anomaly in the coupling to the gauge bosons. We study the sensitivity of ILC to the Higgs anomalous coupling to W bosons by using ZH->vvWW* events. In this article, we report the status of the study.
arXiv:hepex/0406026 Measurement of Coherent Emission and Linear Polarization of Photons by Electrons
arXiv:hepex/0406026 v2 24 Jun 2004 Measurement of Coherent Emission and Linear Polarization of Photons by Electrons in the Strong Fields of Aligned Crystals A. Apyan, 1, #3; R.O. Avakian, 1 B. Badelek photon emission by an electron beam of 178 GeV penetrating a 1.5 cm thick single Si crystal aligned
Linear optics measurements and corrections using an AC dipole in RHIC
Wang, G.; Bai, M.; Yang, L.
2010-05-23T23:59:59.000Z
We report recent experimental results on linear optics measurements and corrections using ac dipole. In RHIC 2009 run, the concept of the SVD correction algorithm is tested at injection energy for both identifying the artificial gradient errors and correcting it using the trim quadrupoles. The measured phase beatings were reduced by 30% and 40% respectively for two dedicated experiments. In RHIC 2010 run, ac dipole is used to measure {beta}* and chromatic {beta} function. For the 0.65m {beta}* lattice, we observed a factor of 3 discrepancy between model and measured chromatic {beta} function in the yellow ring.
Linear Polarization Measurements for High-Spin States in 146Gd
Krishichayan,; Basu, S K; Bhowmik, R K; Chakraborty, A; Chaturvedi, L; Dhal, A; Garg, U; Ghugre, S S; Goswami, R; Jhingan, A; Madhvan, N; Rao, P V Madhusudhana; Mukhopadhyay, S; Muralithar, S; Nath, S; Pattabiraman, N S; Ray, S; Saha, S; Sarkar, M Saha; Sarkar, S; Singh, R; Singh, R P; Sinha, A K; Sinha, R K; Sugathan, P; Yogi, B K
2013-01-01T23:59:59.000Z
A {\\gamma}-ray linear polarization measurement has been performed to directly determine the parities for the levels in 146Gd nucleus. High-spin states in this nucleus were populated in a reaction 115In + 34S at 140 MeV incident energy. Linearly polarized {\\gamma} - rays emitted from oriented states were measured using a Compton polarimeter consisting of an array of 8 Compton-suppressed Clover detectors. Unambiguous assignments of the spin and parity have been made for most of the observed levels and changes made in the previously reported spin-parity assignments for a few levels. Shell model calculations performed with judicious truncation over the {\\pi}(gdsh) valence space interpret the structure of only the low-lying levels up to J{\\pi} = 19+ and 9-. N = 82 neutron-core breaking is found to be essential for high spin states with excitation energies Ex > 7 MeV.
Linear Polarization Measurements for High-Spin States in 146Gd
Krishichayan; Rajashri Bhattacherjee; S. K. Basu; R. K. Bhowmik; A. Chakraborty; L. Chaturvedi; A. Dhal; U. Garg; S. S. Ghugre; R. Goswami; A. Jhingan; N. Madhvan; P. V. Madhusudhana Rao; S. Mukhopadhyay; S. Muralithar; S. Nath; N. S. Pattabiraman; S. Ray; S. Saha; M. Saha Sarkar; S. Sarkar; R. Singh; R. P. Singh; A. K. Sinha; R. K. Sinha; P. Sugathan; B. K. Yogi
2013-08-01T23:59:59.000Z
A {\\gamma}-ray linear polarization measurement has been performed to directly determine the parities for the levels in 146Gd nucleus. High-spin states in this nucleus were populated in a reaction 115In + 34S at 140 MeV incident energy. Linearly polarized {\\gamma} - rays emitted from oriented states were measured using a Compton polarimeter consisting of an array of 8 Compton-suppressed Clover detectors. Unambiguous assignments of the spin and parity have been made for most of the observed levels and changes made in the previously reported spin-parity assignments for a few levels. Shell model calculations performed with judicious truncation over the {\\pi}(gdsh) valence space interpret the structure of only the low-lying levels up to J{\\pi} = 19+ and 9-. N = 82 neutron-core breaking is found to be essential for high spin states with excitation energies Ex > 7 MeV.
Measurement of the Higgs Boson Mass with a Linear e+e- Collider
P. Garcia-Abia; W. Lohmann; A. Raspereza
2005-05-30T23:59:59.000Z
The potential of a linear e+e- collider operated at a centre-of-mass energy of 350 GeV is studied for the measurement of the Higgs boson mass. An integrated luminosity of 500 fb-1 is assumed. For Higgs boson masses of 120, 150 and 180 GeV the uncertainty on the Higgs boson mass measurement is estimated to be 40, 65 and 70 MeV, respectively. The effects of beam related systematics, namely a bias in the beam energy measurement, the beam energy spread and the luminosity spectrum due to beamstrahlung, on the precision of the Higgs boson mass measurement are investigated. In order to keep the systematic uncertainty on the Higgs boson mass well below the level of the statistical error, the beam energy measurement must be controlled with a relative precision better than 10-4.
Pisenti, N.; Gaebler, C. P. E.; Lynn, T. W. [Department of Physics, Harvey Mudd College, 301 Platt Blvd., Claremont, California 91711 (United States)
2011-08-15T23:59:59.000Z
Measuring an entangled state of two particles is crucial to many quantum communication protocols. Yet Bell-state distinguishability using a finite apparatus obeying linear evolution and local measurement is theoretically limited. We extend known bounds for Bell-state distinguishability in one and two variables to the general case of entanglement in n two-state variables. We show that at most 2{sup n+1}-1 classes out of 4{sup n} hyper-Bell states can be distinguished with one copy of the input state. With two copies, complete distinguishability is possible. We present optimal schemes in each case.
Transient Non-linear Thermal FEM Simulation of Smart Power Switches and Verification by Measurements
V. Kosel; R. Sleik; M. Glavanovics
2008-01-07T23:59:59.000Z
Thermal FEM (Finite Element Method) simulations can be used to predict the thermal behavior of power semiconductors in application. Most power semiconductors are made of silicon. Silicon thermal material properties are significantly temperature dependent. In this paper, validity of a common non-linear silicon material model is verified by transient non-linear thermal FEM simulations of Smart Power Switches and measurements. For verification, over-temperature protection behavior of Smart Power Switches is employed. This protection turns off the switch at a pre-defined temperature which is used as a temperature reference in the investigation. Power dissipation generated during a thermal overload event of two Smart Power devices is measured and used as an input stimulus to transient thermal FEM simulations. The duration time of the event together with the temperature reference is confronted with simulation results and thus the validity of the silicon model is proved. In addition, the impact of non-linear thermal properties of silicon on the thermal impedance of power semiconductors is shown.
Measuring Anomalous Couplings in H->WW* Decays at the International Linear Collider
Yosuke Takubo; Robert N. Hodgkinson; Katsumasa Ikematsu; Keisuke Fujii; Nobuchika Okada; Hitoshi Yamamoto
2013-05-17T23:59:59.000Z
Measurement of the Higgs coupling to W-bosons is an important test of our understanding of the electroweak symmetry breaking mechanism. We study the sensitivity of the International Linear Collider (ILC) to the presence of anomalous HW+W- couplings using ZH -> nu nu WW* -> nu nu 4j events. Using an effective Lagrangian approach, we calculate the differential decay rates of the Higgs boson including the effects of new dimension-5 operators. We present a Monte Carlo simulation of events at the ILC, using a full detector simulation based on geant4 and a real event reconstruction chain. Expected constraints on the anomalous couplings are given.
The measurement of non-linear damping in metal-matrix composites
Ray, Sourav
1994-01-01T23:59:59.000Z
K. Kinra (Chair of Committee) Alan Wolfenden (Member) Thomas W. Strganac (Member) Walter E. Haisler (Head of Department) December 1994 Major Subject: Aerospace Engineering ABSTRACT The Measurement of Non-Linear Damping in Metal...-decrement method (LDM) for Mg- 0. 6%Zr Alloy (f = 89 Hz) . . . . 27 Figure 6b: Frequency dependence of P for Mg-0. 6%Zr (er = 70 pe). . . . . . . . . . 29 Figure 6c: Strain-dependent damping for a P55Gr/Mg-0. 6%Zr Composite (f = 51 Hz). . . . . . 30 Figure 7a...
Precision Measurements of Little Higgs Parameters at the International Linear Collider
Eri Asakawa; Masaki Asano; Keisuke Fujii; Tomonori Kusano; Shigeki Matsumoto; Rei Sasaki; Yosuke Takubo; Hitoshi Yamamoto
2009-03-25T23:59:59.000Z
We investigate a possibility of precision measurements for parameters of the Littlest Higgs model with T-parity at the International Linear Collider (ILC). The model predicts new gauge bosons (AH, ZH, and WH), among which the heavy photon (AH) is a candidate for dark matter. The masses of these new gauge bosons strongly depend on the vacuum expectation value that breaks a global symmetry of the model. Through Monte Carlo simulations of the processes: e+ e- ->AH ZH and e+ e- -> WH+ WH-, we show how precisely the masses can be determined at the ILC for a representative parameter point of the model. We also discuss the determination of the Little Higgs parameters and its impact on the future measurement of the thermal abundance of the dark matter relics in our universe.
H. Ono; A. Miyamoto
2013-03-19T23:59:59.000Z
Precise measurement of Higgs boson couplings is an important task for International Linear Collider (ILC) experiments and will facilitate the understanding of the particle mass generation mechanism. In this study, the measurement accuracies of the Higgs boson branching fractions to the $b$ and $c$ quarks and gluons, $\\Delta Br(H\\to b\\bar{b},\\sim c\\bar{c},\\sim gg)/Br$, were evaluated with the full International Large Detector model (\\texttt{ILD\\_00}) for the Higgs mass of 120 GeV at the center-of-mass (CM) energies of 250 and 350 GeV using neutrino, hadronic and leptonic channels and assuming an integrated luminosity of $250 {\\rm fb^{-1}}$, and an electron (positron) beam polarization of -80% (+30%). We obtained the following measurement accuracies of the Higgs cross section times branching fraction ($\\Delta (\\sigma \\cdot Br)/\\sigma \\cdot Br$) for decay of the Higgs into $b\\bar{b}$, $c\\bar{c}$, and $gg$; as 1.0%, 6.9%, and 8.5% at a CM energy of 250 GeV and 1.0%, 6.2%, and 7.3% at 350 GeV, respectively. After the measurement accuracy of the cross section ($\\Delta\\sigma/\\sigma$) was corrected using the results of studies at 250 GeV and their extrapolation to 350 GeV, the derived measurement accuracies of the branching fractions ($\\Delta Br/Br$) to $b\\bar{b}$, $c\\bar{c}$, and gg were 2.7%, 7.3%, and 8.9% at a CM energy of 250 GeV and 3.6%, 7.2%, and 8.1% at 350 GeV, respectively.
Gao Song; Balter, Peter A. [Department of Radiation Physics, Unit 94, University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030 (United States); Rose, Mark; Simon, William E. [Sun Nuclear Corporation, 425-A Pineda Court, Melbourne, Florida 32940 (United States)
2013-04-15T23:59:59.000Z
Purpose: To compare the use of flatness versus percent depth dose (PDD) for determining changes in photon beam energy for a megavoltage linear accelerator. Methods: Energy changes were accomplished by adjusting the bending magnet current by up to {+-}15% in 5% increments away from the value used clinically. Two metrics for flatness, relative flatness in the central 80% of the field (Flat) and average maximum dose along the diagonals normalized by central axis dose (F{sub DN}), were measured using a commercially available planner ionization chamber array. PDD was measured in water at depths of 5 and 10 cm in 3 Multiplication-Sign 3 cm{sup 2} and 10 Multiplication-Sign 10 cm{sup 2} fields using a cylindrical chamber. Results: PDD was more sensitive to changes in energy when the beam energy was increased than when it was decreased. For the 18-MV beam in particular, PDD was not sensitive to energy reductions below the nominal energy. The value of Flat was found to be more sensitive to decreases in energy than to increases, with little sensitivity to energy increases above the nominal energy for 18-MV beams. F{sub DN} was the only metric that was found to be sensitive to both increases and reductions of energy for both the 6- and 18-MV beams. Conclusions: Flatness based metrics were found to be more sensitive to energy changes than PDD, In particular, F{sub DN} was found to be the most sensitive metric to energy changes for photon beams of 6 and 18 MV. The ionization chamber array allows this metric to be conveniently measured as part of routine accelerator quality assurance.
arXiv:hepex/0212001 Measuring the linear polarization of s in 20 -170 GeV range
with increasing energy makes this method superior to others, such as the pair production and photonuclear for Storage Ring Facilities, University of Aarhus, Denmark The Na59 collaboration aims to measure the linear the photon spectrum. Using the polarization dependence of the pair production cross section in an aligned
Depletion, quantum jumps, and temperature measurements of ??Sr? ions in a linear Paul Trap
Richerme, Philip J
2006-01-01T23:59:59.000Z
This thesis describes the design and construction of two laser systems to probe the 674nm transition of ??Sr? ions in a linear Paul trap. The first laser system made use of a molecular transition in Iodine to stabilize the ...
Whitehead, Anthony
University Ottawa, Canada awhitehe@connect.carleton.ca Abstract--Wind tunnel Pressure Sensitive Paint (PSP) ratio techniques require accurate registration between wind-on and wind-off camera image pairs. The Piecewise Linear Resection (PLR) method of removing registration due to physical wind tunnel model motion
Qiu Zicheng; Wang Xiangzhao; Bi Qunyu; Yuan Qiongyan; Peng Bo; Duan Lifeng
2009-07-01T23:59:59.000Z
A linear measurement model of lithographic projection lens aberrations is studied numerically based on the Hopkins theory of partially-coherent imaging and positive resist optical lithography (PROLITH) simulation. In this linearity model, the correlation between the mark's structure and its sensitivities to aberrations is analyzed. A method to design a mark with high sensitivity is proved and declared. By use of this method, a translational-symmetry alternating phase shifting mask (Alt-PSM) grating mark is redesigned with all of the even orders, {+-}3rd and {+-}5th order diffraction light missing. In the evaluation simulation, the measurement accuracies of aberrations prove to be enhanced apparently by use of the redesigned mark instead of the old ones.
Hitchcock, Adam P.
with results from Nephila clavipes dragline spider silk measured using the in situ rotation device. © 2007
$\\gamma$-ray linear polarization measurements and $(g_{9/2})^{-3}$ neutron alignment in $^{91}$Ru
Zheng, Y; Clément, E; Dijon, A; Cederwall, B; Wadsworth, R; Bäck, T; Moradi, F Ghazi; Jaworski, G; Nyakó, B M; Nyberg, J; Palacz, M; Al-Azri, H; de Angelis, G; Atac, A; Akta?, Ö; Bhattacharyya, S; Brock, T; Davies, P J; Di Nitto, A; Dombradi, Zs; Gadea, A; Gal, J; Joshi, P; Juhasz, K; Julin, R; Jungclaus, A; Kalinka, G; Kownacki, J; La Rana, G; Lenzi, S M; Molnar, J; Moro, R; Napoli, D R; Singh, B S Nara; Persson, A; Recchia, F; Sandzelius, M; Scheurer, J -N; Sletten, G; Sohler, D; Söderström, P -A; Taylor, M J; Timar, J; Valiente-Dobon, J J; Vardaci, E
2013-01-01T23:59:59.000Z
Linear polarization measurements have been performed for $\\gamma$-rays in $^{91}$Ru produced with the $^{58}$Ni($^{36}$Ar, $2p1n$$\\gamma$)$^{91}$Ru reaction at a beam energy of 111 MeV. The EXOGAM Ge clover array has been used to measure the $\\gamma$-$\\gamma$ coincidences, $\\gamma$-ray linear polarization and $\\gamma$-ray angular distributions. The polarization sensitivity of the EXOGAM clover detectors acting as Compton polarimeters has been determined in the energy range 0.3$-$1.3 MeV. Several transitions have been observed for the first time. Measurements of linear polarization and angular distribution have led to the firm assignments of spin differences and parity of high-spin states in $^{91}$Ru. More specifically, calculations using a semi-empirical shell model were performed to understand the structures of the first and second (21/2$^{+}$) and (17/2$^{+}$) levels. The results are in good agreement with the experimental data, supporting the interpretation of the non yrast (21/2$^{+}$) and (17/2$^{+}$) s...
Whitehead, Anthony
Slide Improved Pressure Sensitive Paint Measurement using Natural Feature Tracking and Piecewise #12;Slide Surface Pressure Measurement: Model Taps Delta wing model Pressure Taps 3 #12;Slide Surface #12;Slide Surface Pressure Measurement: Surface Data Higher Pressure Lower Pressure Complete Pressure
Linear line spectropolarimetry as a new window to measure 2D and 3D wind geometries
Vink, Jorick S
2015-01-01T23:59:59.000Z
Various theories have been proposed to predict how mass loss depends on the stellar rotation rate, both in terms of its strength, as well as its latitudinal dependence, crucial for our understanding of angular momentum evolution. Here we discuss the tool of linear spectropolarimetry that can probe the difference between mass loss from the pole versus the equator. Our results involve several groups of O stars and Wolf-Rayet stars, involving Oe stars, Of?p stars, Onfp stars, as well as the best candidate gamma-ray burst progenitors identified to date.
What Is a Good Linear Finite Element? Interpolation, Conditioning, Anisotropy, and Quality Measures
Frey, Pascal
-9875170, CMS-9980063, CCR-0204377, and EIA- 9802069, and in part by a gift from the Okawa Foundation . . . . . . . . . . . . . . . . . . . . . . . . 46 6.3 A Brief Survey of Quality Measures
NA59 Collaboration; A. Apyan; R. O. Avakian; B. Badelek; S. Ballestrero; C. Biino; I. Birol; P. Cenci; S. H. Connell; S. Eichblatt; T. Fonseca; A. Freund; B. Gorini; R. Groess; K. Ispirian; T. J. Ketel; Yu. V. Kononets; A. Lopez; A. Mangiarotti; B. van Rens; J. P. F. Sellschop; M. Shieh; P. Sona; V. Strakhovenko; E. Uggerhoj; U. I. Uggerhoj; G. Unel; M. Velasco; Z. Z. Vilakazi; O. Wessely
2004-06-24T23:59:59.000Z
We present new results regarding the features of high energy photon emission by an electron beam of 178 GeV penetrating a 1.5 cm thick single Si crystal aligned at the Strings-Of-Strings (SOS) orientation. This concerns a special case of coherent bremsstrahlung where the electron interacts with the strong fields of successive atomic strings in a plane and for which the largest enhancement of the highest energy photons is expected. The polarization of the resulting photon beam was measured by the asymmetry of electron-positron pair production in an aligned diamond crystal analyzer. By the selection of a single pair the energy and the polarization of individual photons could be measured in an the environment of multiple photons produced in the radiator crystal. Photons in the high energy region show less than 20% linear polarization at the 90% confidence level.
Yoo, Y. S.; Lee, D. H.; Park, C. W.; Park, S. N. [Korea Research Institute of Standards and Science 209 Gajeong-Ro, Yuseong-Gu, Daejon 305-340 (Korea, Republic of)] [Korea Research Institute of Standards and Science 209 Gajeong-Ro, Yuseong-Gu, Daejon 305-340 (Korea, Republic of)
2013-09-11T23:59:59.000Z
To realize the temperature scale above the freezing point of silver according to the definition of ITS-90, the dynamic range of the spectral responsivity is one of the most important factors which limit its uncertainty. When the residual spectral response at both side bands of a spectral band is not negligible, a significant uncertainty can be caused by a low dynamic range of the spectral responsivity measurement. In general, incandescent lamps are used to measure the spectral responsivity and the linearity. The dynamic range of the spectral responsivity measurement is often limited by a trade-off with the desired spectral resolution, which is less than 6 decades. Nonlinearity is another limiting fact of uncertainties of the temperature scale. Tungsten lamps have disadvantage in the nonlinearity measurements in terms of adjustability of radiance level and spectral selectivity. We report spectral responsivity measurements of which the measurable dynamic range is enhanced 50 times after replacing a QTH lamp with a super continuum laser. We also present a spectrally selected linearity measurement over a wide dynamic range using high-brightness light emitting diode arrays to observe a slight saturation of linearity.
Joao Batista Rosa Silva; Rubens Viana Ramos
2006-07-26T23:59:59.000Z
Aiming the construction of quantum computers and quantum communication systems based on optical devices, in this work we present possible implementations of quantum and classical CNOTs gates, as well an optical setup for generation and distribution of bipartite entangled states, using linear optical devices and photon number quantum non-demolition measurement.
Tseung, H Wan Chan; Tolich, N
2011-01-01T23:59:59.000Z
An experimental test of the electron energy scale linearities of SNO+ and EJ-301 scintillators is carried out using a Compton spectrometer with electrons in the energy range 0.09-3 MeV. The linearity of the apparatus is explicitly demonstrated. It is found that the response of both types of scintillators with respect to electrons becomes non-linear below ~0.4 MeV. An explanation is given in terms of Cherenkov light absorption and re-emission by the scintillators.
H. Wan Chan Tseung; J. Kaspar; N. Tolich
2011-07-01T23:59:59.000Z
An experimental test of the electron energy scale linearities of SNO+ and EJ-301 scintillators was carried out using a Compton spectrometer with electrons in the energy range 0.09-3 MeV. The linearity of the apparatus was explicitly demonstrated. It was found that the response of both types of scintillators with respect to electrons becomes non-linear below ~0.4 MeV. An explanation is given in terms of Cherenkov light absorption and re-emission by the scintillators.
Transmission Grating Measurements of Undulator K
Bionta, R. M.
2010-12-01T23:59:59.000Z
This study was undertaken to understand the practicalities of determine K differences in the undulator modules by measuring single-shot x-ray spectra of the spontaneous radiation with a transmissive grating spectrometer under development to measure FEL spectra. Since the quality of the FEL is dependent on a uniform K value in all the undulator modules, being able to measure the relative undulator K values is important. Preliminary results were presented in a presentation, 'Use of FEL Off-Axis Zone Plate Spectrometer to Measure Relative K by the Pinhole/Centroid Method', at the 'LCLS Beam-Based Undulator K Measurements Workshop' on November 14, 2005 (UCRL-PRES-217281). This study applies equally well to reflective gratings of the appropriate period and inclinations.
Jr, Peter Chien; Rosenman, Karla; Cheung, Wang; Wang, Nadia; Sanchez, Miguel
2009-01-01T23:59:59.000Z
type 1/type 2 mosaic of psoriasis? Dermatology 2006; 212:Magalhaes RF, et al. Linear psoriasis in Brazilian childrensuffering from linear psoriasis along lines of Blaschko. Br
Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group
neutrinoless double beta decay and measure solar neutrinos and geoneutrinos. The type of particle by ap- proximately 9500 PMTs. For detections of neutrinoless double beta decay, the liquid scintillator double beta decay, low energy solar neutrinos, geo- neutrinos and supernova neutrinos using scintillation
Linear Dependence and Linear Independence
PRETEX (Halifax NS) #1 1054 1999 Mar 05 10:59:16
2010-02-12T23:59:59.000Z
Feb 16, 2007 ... Observe that the vector (1, 2) is already a linear combination of (1, 0) and (0, 1), and therefore it does not add any new vectors to the linear span ...
Park, So Yeong; Hong, Chung Ki [Department of Physics, POSTECH, Pohang 790-784 (Korea, Republic of)] [Department of Physics, POSTECH, Pohang 790-784 (Korea, Republic of); Lim, Jun, E-mail: limjun@postech.ac.kr [Pohang Accelerator Laboratory, POSTECH, Pohang 790-784 (Korea, Republic of)] [Pohang Accelerator Laboratory, POSTECH, Pohang 790-784 (Korea, Republic of)
2014-04-15T23:59:59.000Z
We measured the spatial coherence length and incoherent source size of a hard x-ray undulator beamline at Pohang Light Source-II, the stored electron energy of which has been increased from 2.5 GeV to 3 GeV. The coherence length was determined by single-slit measurement of the visibility of the Fresnel diffraction pattern. The correlated incoherent source size was cross-checked for three different optics: the single slit, beryllium parabolic compound refractive lenses, and the Fresnel zone plate. We concluded that the undulator beamline has an effective incoherent source size (FWHM) of 540 ?m (horizontal) × 50 ?m (vertical)
D. L. Knudson; J. L. Rempe
2012-02-01T23:59:59.000Z
New materials are being considered for fuel, cladding and structures in next generation and existing nuclear reactors. These materials can undergo significant dimensional and physical changes during high temperature irradiations. Currently, such changes are determined by repeatedly irradiating a specimen for a specified period of time in the Advanced Test Reactor (ATR) and then removing it from the reactor for evaluation. The labor and time to remove, examine and return irradiated samples for each measurement make this approach very expensive. In addition, such techniques provide limited data and may disturb the phenomena of interest. To resolve these issues, an instrumented creep testing capability is being developed for specimens irradiated under pressurized water reactor coolant conditions in the ATR at the Idaho National Laboratory (INL). This paper reports the status of INL efforts to develop this testing capability. In addition to providing an overview of in-pile creep test capabilities available at other test reactors, this paper focuses on efforts to design and evaluate a prototype test rig in an autoclave at INL’s High Temperature Test Laboratory.
D. L. Knudson; J. L. Rempe
2012-02-01T23:59:59.000Z
New materials are being considered for fuel, cladding, and structures in next generation and existing nuclear reactors. These materials can undergo significant dimensional and physical changes during high temperature irradiations. Currently, such changes are determined by repeatedly irradiating a specimen for a specified period of time in the Advanced Test Reactor (ATR) and then removing it from the reactor for evaluation. The labor and time to remove, examine, and return irradiated samples for each measurement makes this approach very expensive. In addition, such techniques provide limited data and may disturb the phenomena of interest. To resolve these issues, an instrumented creep testing capability is being developed for specimens irradiated in pressurized water reactor (PWR) coolant conditions in the ATR at the Idaho National Laboratory (INL). This paper reports the status of INL efforts to develop this testing capability. In addition to providing an overview of in-pile creep test capabilities available at other test reactors, this paper focuses on efforts to design and evaluate a prototype test rig in an autoclave at INL's High Temperature Test Laboratory (HTTL).
Bittner, John W. (Shoreham, NY); Biscardi, Richard W. (Ridge, NY)
1991-01-01T23:59:59.000Z
An electronic measurement circuit for high speed comparison of the relative amplitudes of a predetermined number of electrical input signals independent of variations in the magnitude of the sum of the signals. The circuit includes a high speed electronic switch that is operably connected to receive on its respective input terminals one of said electrical input signals and to have its common terminal serve as an input for a variable-gain amplifier-detector circuit that is operably connected to feed its output to a common terminal of a second high speed electronic switch. The respective terminals of the second high speed electronic switch are operably connected to a plurality of integrating sample and hold circuits, which in turn have their outputs connected to a summing logic circuit that is operable to develop first, second and third output voltages, the first output voltage being proportional to a predetermined ratio of sums and differences between the compared input signals, the second output voltage being proportional to a second summed ratio of predetermined sums and differences between said input signals, and the third output voltage being proportional to the sum of signals to the summing logic circuit. A servo system that is operably connected to receive said third output signal and compare it with a reference voltage to develop a slowly varying feedback voltage to control the variable-gain amplifier in said common amplifier-detector circuit in order to make said first and second output signals independent of variations in the magnitude of the sum of said input signals.
Bittner, J.W.; Biscardi, R.W.
1991-03-19T23:59:59.000Z
An electronic measurement circuit is disclosed for high speed comparison of the relative amplitudes of a predetermined number of electrical input signals independent of variations in the magnitude of the sum of the signals. The circuit includes a high speed electronic switch that is operably connected to receive on its respective input terminals one of said electrical input signals and to have its common terminal serve as an input for a variable-gain amplifier-detector circuit that is operably connected to feed its output to a common terminal of a second high speed electronic switch. The respective terminals of the second high speed electronic switch are operably connected to a plurality of integrating sample and hold circuits, which in turn have their outputs connected to a summing logic circuit that is operable to develop first, second and third output voltages, the first output voltage being proportional to a predetermined ratio of sums and differences between the compared input signals, the second output voltage being proportional to a second summed ratio of predetermined sums and differences between said input signals, and the third output voltage being proportional to the sum of signals to the summing logic circuit. A servo system that is operably connected to receive said third output signal and compare it with a reference voltage to develop a slowly varying feedback voltage to control the variable-gain amplifier in said common amplifier-detector circuit in order to make said first and second output signals independent of variations in the magnitude of the sum of said input signals. 2 figures.
On linear programing approach to inventory control
Mayfield, John
On linear programing approach to inventory control problems Zhu received his PhD from Wayne State imbeds the inventory control problem into an infinite-dimensional linear program over a space of measures restricted classes of control policies. Additional auxiliary and dual linear programs are introduced
Jacques Carolan; Chris Harrold; Chris Sparrow; Enrique Martín-López; Nicholas J. Russell; Joshua W. Silverstone; Peter J. Shadbolt; Nobuyuki Matsuda; Manabu Oguma; Mikitaka Itoh; Graham D. Marshall; Mark G. Thompson; Jonathan C. F. Matthews; Toshikazu Hashimoto; Jeremy L. O'Brien; Anthony Laing
2015-05-05T23:59:59.000Z
Linear optics underpins tests of fundamental quantum mechanics and computer science, as well as quantum technologies. Here we experimentally demonstrate the longstanding goal of a single reprogrammable optical circuit that is sufficient to implement all possible linear optical protocols up to the size of that circuit. Our six-mode universal system consists of a cascade of 15 Mach-Zehnder interferometers with 30 thermo-optic phase shifters integrated into a single photonic chip that is electrically and optically interfaced for arbitrary setting of all phase shifters, input of up to six photons and their measurement with a 12 single-photon detector system. We programmed this system to implement heralded quantum logic and entangling gates, boson sampling with verification tests, and six-dimensional complex Hadamards. We implemented 100 Haar random unitaries with average fidelity 0.999 $\\pm$ 0.001. Our system is capable of switching between these and any other linear optical protocol in seconds. These results point the way to applications across fundamental science and quantum technologies.
Kumar, Punith V., E-mail: drvldayal@gmail.com; Manju, M. R., E-mail: drvldayal@gmail.com; Dayal, Vijaylakshmi, E-mail: drvldayal@gmail.com [Department of Physics, Maharaja Institute of Technology, Mysore-571438, Karnataka (India)
2014-04-24T23:59:59.000Z
We present a comprehensive study on origin of Spin Glass (SG) property in polycrystalline La{sub 0.5}Bi{sub 0.5}MnO{sub 3} perovskite oxide using linear and higher order ac susceptibility (?) measurements. The third order harmonic susceptibility (?{sub 3}) vs. temperature (K) with varying magnetic fields from 0.95 to 9.45 Oe and the divergence in their ?{sub 3} (max) allows us to infer the SG behavior occurring in the sample possibly due to co-operative freezing of the spins.
T. T. Moh
2015-01-20T23:59:59.000Z
goal of this course is to enable you to recognize linear algebra problems ... descriptions of other people's solutions to problems that use linear algebra and to
AUTHOR|(SzGeCERN)435733
2015-01-01T23:59:59.000Z
A future e+e collider, such as the ILC or CLIC, would allow the Higgs sector to be probed with a precision significantly beyond that achievable at the High-Luminosity LHC. A central part of the Higgs programme at an e+e collider is the model-independent determination of the absolute Higgs couplings to fermions and to gauge bosons. Here the measurement of the e+e --> HZ Higgsstrahlung cross sec- tion, using the recoil mass technique, sets the absolute scale for all Higgs coupling measurements. Previous studies have considered s (e+e --> HZ) with Z --> l+l-, where l = e, ?. In this paper it is shown for the first time that a near model- independent recoil mass technique can be extended to the hadronic decays of the Z boson. Because the branching ratio for Z --> qq is approximately ten times greater than for Z --> l+l-, this method is statistically more powerful than using the leptonic decays. For an integrated luminosity of 500 fb-1 at a centre-of-mass energy of ps = 350 GeV at CLIC, s (e+e --> HZ) can be meas...
Thomson, Mark
2015-01-01T23:59:59.000Z
A future e+e- collider, such as the ILC or CLIC, would allow the Higgs sector to be probed with a precision significantly beyond that achievable at the High-Luminosity LHC. A central part of the Higgs programme at an e+e- collider is the model-independent determination of the absolute Higgs couplings to fermions and to gauge bosons. Here the measurement of the e+e-->HZ Higgsstrahlung cross section, using the recoil mass technique, sets the absolute scale for all Higgs coupling measurements. Previous studies have considered e+e- ->ZH with Z->l+l-, where l = electron or muon. In this paper it is shown for the first time that a near model-independent recoil mass technique can be extended to the hadronic decays of the Z boson. Because the branching ratio for Z->qq is approximately ten times greater than for Z->l+l-, this method is statistically more powerful than using the leptonic decays. For an integrated luminosity of 500 fb-1 at a centre-of-mass energy of 350 GeV at CLIC, the e+e-->HZ cross section can be mea...
Linear electric field mass spectrometry
McComas, D.J.; Nordholt, J.E.
1992-12-01T23:59:59.000Z
A mass spectrometer and methods for mass spectrometry are described. The apparatus is compact and of low weight and has a low power requirement, making it suitable for use on a space satellite and as a portable detector for the presence of substances. High mass resolution measurements are made by timing ions moving through a gridless cylindrically symmetric linear electric field. 8 figs.
Philipp Roloff; Jan Strube
2013-07-29T23:59:59.000Z
One of the detector benchmark processes investigated for the SiD Detailed Baseline Design (DBD) is given by: e+e- -> ttH, where H is the Standard Model Higgs boson of mass 125 GeV. The study is carried out at a centre-of-mass energy of 1 TeV and assuming an integrated luminosity of 1 ab-1. The physics aim is a direct measurement of the top Yukawa coupling at the ILC. Higgs boson decays to beauty quark-antiquark pairs are reconstructed. The investigated final states contain eight jets or six jets, one charged lepton and missing energy. Additionally, four of the jets in signal events are caused by beauty quark decays. The analysis is based on a full simulation of the SiD detector using GEANT4. Beam-related backgrounds from gammagamma -> hadrons interactions and incoherent e+e- pairs are considered. This study addresses various aspects of the detector performance: jet clustering in complex hadronic final states, flavour-tagging and the identification of high energy leptons.
Type Measurement Type Measurement Type Measurement Type Measurement Catch Composition - Pelagic codes M Male F Female I Indeterminate U Unknown (not inspected) #12;Type Measurement Type Measurement Type Measurement Type Measurement Photos Comment Length 1 Version 1.2 6/2011 HookNo. Species name
New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article) |govInstrumentsmfrirtA Journey Inside the Complex andFOURPhotoNew Species of CyanobacteriaTransportationTraining51New
Theory and design of integrated optical isolators and broadband couplers using Fresnel zone plates
Cordova, Brad Gilbert
2013-01-01T23:59:59.000Z
This thesis is divided into two main sections: the first containing the analysis of the broadband vertical coupler, and the second involving the theory and design of the integrated optical isolators. In the first part we ...
Optical Properties of Plasmonic Zone Plate Lens, SERS-active Substrate and Infrared Dipole Antenna
Kim, Hyun Chul
2010-10-12T23:59:59.000Z
Nowadays plasmonics is rapidly developing areas from fundamental studies to more application driven research. This dissertation contains three different research topics on plasmonics. In the first research topic, by ...
New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5(Million Cubic Feet) Oregon (Including Vehicle Fuel) (Million Cubic Feet) Natural Gas Delivered toNew Research on11:04am AddthisPrice21New Zone
New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5(Million Cubic Feet) Oregon (Including Vehicle Fuel) (Million Cubic Feet) Natural Gas Delivered toNew Research on11:04am AddthisPrice21New ZoneNew Zone
Double patterning HSQ processes of zone plates for 10 nm diffraction limited performance
Chao, Weilun
2009-01-01T23:59:59.000Z
set followed by electroplating. Our internally developedusing PMMA and gold electroplating, which were overlaid andsubstrate needed for the electroplating step. We developed a
HSQ double patterning process for 12 nm resolution x-ray zone plates
Chao, Weilun
2009-01-01T23:59:59.000Z
which is used here for electroplating the metal zones. Toresult in a single electroplating step to form allset II development and electroplating. Gold grains similar
Towards sub-10 nm resolution zone plates using the overlay nanofabrication processes
Chao, Weilun; Anderson, Erik H.; Fischer, Peter; Kim, Dong-Hyun
2008-01-01T23:59:59.000Z
structure as a mold, electroplating is performed to form themarks are formed by electroplating in gold, and resist isI is then formed by electroplating in gold, and the resist
The Microscopic Linear Dynamics
Penny, Will
The Microscopic Brain Will Penny Linear Dynamics Exponentials Matrix Exponential Eigendecomposition Dynamical Modes Nodes State Space Saddles Oscillations Spirals Centres Offsets Retinal Circuit Nullclines Stability Spiking Neurons Fitzhugh-Nagumo Nonlinear Dynamics Linearization Nonlinear Oscillation Excitable
Zeghib, Abdelghani
Introduction Results Linear Dynamics Lorentz Dynamics Actions of discrete groups on stationary Piccione) Geodeycos Meeting, Lyon, 28-30 April 2010 Abdelghani Zeghib Dynamics on Lorentz manifolds #12;Introduction Results Linear Dynamics Lorentz Dynamics Motivations and questions Examples 1 Introduction
Generalized Linear Quadratic Control
Gattami, Ather Said
We consider the problem of stochastic finite- and infinite-horizon linear quadratic control under power constraints. The calculations of the optimal control law can be done off-line as in the classical linear quadratic ...
Introduction to Linear Relaxations
Introduction to Linear Relaxations by R. Baker Kearfott Department of Mathematics University relaxations; . discuss validation of linear relaxations. Intro. Linear Relaxations December, 2003 Taylor, . . . , m 2 , where # : R n # R and c i , g i : R n # R are guaranteed to be within one of the x # that has
Non-linearities in the quantum multiverse
Orfeu Bertolami; Victor Herdeiro
2012-08-01T23:59:59.000Z
It has been recently proposed that the multiverse of eternal inflation and the many-worlds interpretation of quantum mechanics can be identified, yielding a new view on the measure and measurement problems. In the present note, we argue that a non-linear evolution of observables in the quantum multiverse would be an obstacle for such a description and that these non-linearities are expected from quite general arguments.
Demmel, James; Holtz, Olga; Dumitriu, Ioana
2007-01-01T23:59:59.000Z
than other basic linear algebra subroutines. AcknowledgmentsApplied Numerical Linear Algebra. SIAM, 1997. [23] J.algorithms in numerical linear algebra. SIAM Review, 20:740–
Comparison of co-expression measures: mutual information, correlation, and model based indices
Song, Lin; Langfelder, Peter; Horvath, Steve
2012-01-01T23:59:59.000Z
that non- linear association measures, especially regressioncontrast, regression models capture non-linear gene pairwiseand spline regression models to measure non-linear
Seismic response of linear accelerators
Collette, C; Guinchard, M; Hauviller, C
2010-01-01T23:59:59.000Z
This paper is divided into two parts. The first part presents recent measurements of ground motion in the LHC tunnel at CERN. From these measurements, an update of the ground motion model currently used in accelerator simulations is presented. It contains new features like a model of the lateral motion and the technical noise. In the second part, it is shown how this model can be used to evaluate the seismic response of a linear accelerator in the frequency domain. Then, the approach is validated numerically on a regular lattice, taking the dynamic behavior of the machine alignment stage and the mechanical stabilization of the quadrupoles into account.
Fault tolerant linear actuator
Tesar, Delbert
2004-09-14T23:59:59.000Z
In varying embodiments, the fault tolerant linear actuator of the present invention is a new and improved linear actuator with fault tolerance and positional control that may incorporate velocity summing, force summing, or a combination of the two. In one embodiment, the invention offers a velocity summing arrangement with a differential gear between two prime movers driving a cage, which then drives a linear spindle screw transmission. Other embodiments feature two prime movers driving separate linear spindle screw transmissions, one internal and one external, in a totally concentric and compact integrated module.
Using Linearity Web Copyright 2007
Rodriguez, Carlos
Using Linearity Web Rev. 2.0 May 2007 Copyright © 2007 #12;Using Linearity Web i Contents Introduction to Linearity Web.............................................................................1 Features, Benefits, and Value of Linearity Web..............................................1 Before You
W. B. Vasantha Kandasamy; Florentin Smarandache
2008-07-18T23:59:59.000Z
In this book, the authors introduce the notion of Super linear algebra and super vector spaces using the definition of super matrices defined by Horst (1963). This book expects the readers to be well-versed in linear algebra. Many theorems on super linear algebra and its properties are proved. Some theorems are left as exercises for the reader. These new class of super linear algebras which can be thought of as a set of linear algebras, following a stipulated condition, will find applications in several fields using computers. The authors feel that such a paradigm shift is essential in this computerized world. Some other structures ought to replace linear algebras which are over a century old. Super linear algebras that use super matrices can store data not only in a block but in multiple blocks so it is certainly more powerful than the usual matrices. This book has 3 chapters. Chapter one introduces the notion of super vector spaces and enumerates a number of properties. Chapter two defines the notion of super linear algebra, super inner product spaces and super bilinear forms. Several interesting properties are derived. The main application of these new structures in Markov chains and Leontief economic models are also given in this chapter. The final chapter suggests 161 problems mainly to make the reader understand this new concept and apply them.
Optimal subgradient algorithms with application to large-scale linear ...
2014-05-26T23:59:59.000Z
order methods, for examples Beck & Teboulle [8], Becker et al. ..... applying linear mappings, the complexity of an algorithm can be measured by counting the ...
Linear and non-linear forced response of a conical, ducted, laminar premixed flame
Karimi, Nader; Brear, Michael J.; Jin, Seong-Ho; Monty, Jason P. [Department of Mechanical Engineering, University of Melbourne, Parkville, 3010 Vic. (Australia)
2009-11-15T23:59:59.000Z
This paper presents an experimental study on the dynamics of a ducted, conical, laminar premixed flame subjected to acoustic excitation of varying amplitudes. The flame transfer function is measured over a range of forcing frequencies and equivalence ratios. In keeping with previous works, the measured flame transfer function is in good agreement with that predicted by linear kinematic theory at low amplitudes of acoustic velocity excitation. However, a systematic departure from linear behaviour is observed as the amplitude of the velocity forcing upstream of the flame increases. This non-linearity is mostly in the phase of the transfer function and manifests itself as a roughly constant phase at high forcing amplitude. Nonetheless, as predicted by non-linear kinematic arguments, the response always remains close to linear at low forcing frequencies, regardless of the forcing amplitude. The origin of this phase behaviour is then sought through optical data post-processing. (author)
Linearly parameterized bandits
Tsitsiklis, John N.
We consider bandit problems involving a large (possibly infinite) collection of arms, in which the expected reward of each arm is a linear function of an r-dimensional random vector Z ? ?(superscript r), where r ? 2. The ...
Linear Motor Powered Transportation
Thornton, Richard D.
This special issue on linear-motor powered transportation covers both supporting technologies and innovative transport systems in various parts of the World, as this technology moves from the lab to commercial operations. ...
The International Linear Collider
Jim Brau; Paul Grannis; Mike Harrison; Michael Peskin; Marc Ross; Harry Weerts
2013-04-09T23:59:59.000Z
We present a brief summary of the International Linear Collider as documented in the 2013 Technical Design Report. The Technical Design Report has detailed descriptions of the accelerator baseline design for a 500 GeV e+e- linear collider, the R&D program that has demonstrated its feasibility, the physics goals and expected sensitivities, and the description of the ILD and SiD detectors and their capabilities.
Stochastic bridges of linear systems
Yongxin Chen; Tryphon Georgiou
2014-07-12T23:59:59.000Z
We study a generalization of the Brownian bridge as a stochastic process that models the position and velocity of inertial particles between the two end-points of a time interval. The particles experience random acceleration and are assumed to have known states at the boundary. Thus, the movement of the particles can be modeled as an Ornstein-Uhlenbeck process conditioned on position and velocity measurements at the two end-points. It is shown that optimal stochastic control provides a stochastic differential equation (SDE) that generates such a bridge as a degenerate diffusion process. Generalizations to higher order linear diffusions are considered.
A development of MOS linear active load schemes
Mallett, Robert Alan
1985-01-01T23:59:59.000Z
resistor. A solution to this problem is to use a single or multiply interconnected MOS transistors to simulate resistors. These simulated resistors are termed "active loads". The advantages of using MOSFETs over passive monolithic resistors are the high...'s inverted parallel load . General description of the fully linear active block Fully linear active block Three transistor fully linear block Cktl Ckt2 Ckt3 Ckt4 Complex single transistor loads IPL DEPR FLAB I ? V measuring system THD measuring...
Optimization Online - Linear-quadratic control problem with a linear ...
L Faybusovich
2003-12-19T23:59:59.000Z
Dec 19, 2003 ... Abstract: We describe a complete solution of the linear-quaratic control problem with the linear term in the objective function on a semiinfinite ...
6, 74277469, 2006 Linear ozone
Boyer, Edmond
ACPD 6, 74277469, 2006 Linear ozone photochemistry parametrizations A. J. Geer et al. Title Page Chemistry and Physics Discussions Evaluation of linear ozone photochemistry parametrizations Linear ozone photochemistry parametrizations A. J. Geer et al. Title Page Abstract Introduction
Linear Algebra: Ideas and Applications
Linear Algebra: Ideas and Applications. [photo]. Welcome to the web page for Linear Algebra: Idaes and Applications by Richard Penney. This web site is ...
Reticle stage based linear dosimeter
Berger, Kurt W.
2005-06-14T23:59:59.000Z
A detector to measure EUV intensity employs a linear array of photodiodes. The detector is particularly suited for photolithography systems that includes: (i) a ringfield camera; (ii) a source of radiation; (iii) a condenser for processing radiation from the source of radiation to produce a ringfield illumination field for illuminating a mask; (iv) a reticle that is positioned at the ringfield camera's object plane and from which a reticle image in the form of an intensity profile is reflected into the entrance pupil of the ringfield camera, wherein the reticle moves in a direction that is transverse to the length of the ringfield illumination field that illuminates the reticle; (v) detector for measuring the entire intensity along the length of the ringfield illumination field that is projected onto the reticle; and (vi) a wafer onto which the reticle imaged is projected from the ringfield camera.
Reticle stage based linear dosimeter
Berger, Kurt W. (Livermore, CA)
2007-03-27T23:59:59.000Z
A detector to measure EUV intensity employs a linear array of photodiodes. The detector is particularly suited for photolithography systems that includes: (i) a ringfield camera; (ii) a source of radiation; (iii) a condenser for processing radiation from the source of radiation to produce a ringfield illumination field for illuminating a mask; (iv) a reticle that is positioned at the ringfield camera's object plane and from which a reticle image in the form of an intensity profile is reflected into the entrance pupil of the ringfield camera, wherein the reticle moves in a direction that is transverse to the length of the ringfield illumination field that illuminates the reticle; (v) detector for measuring the entire intensity along the length of the ringfield illumination field that is projected onto the reticle; and (vi) a wafer onto which the reticle imaged is projected from the ringfield camera.
Spectral learning of linear dynamics from generalised-linear observations
a non-linear and non-Gaussian observation process. We use this approach to obtain estimates to the generalised-linear regression model [8]), where the expected value of an observation is given by a monotonicSpectral learning of linear dynamics from generalised-linear observations with application
QPL 2005 Preliminary Version De-linearizing linearity: projective quantum
Selinger, Peter
QPL 2005 Preliminary Version De-linearizing linearity: projective quantum axiomatics from strong the linear structure of Hilbert spaces into several constituents which play different roles in quantum)famous Birkhoff- von Neumann paper [7]. The bulk of the linear structure required to reason about quantum
W. B. Vasantha Kandasamy; Florentin Smarandache
2010-12-08T23:59:59.000Z
In this book we use only special types of intervals and introduce the notion of different types of interval linear algebras and interval vector spaces using the intervals of the form [0, a] where the intervals are from Zn or Z+ \\cup {0} or Q+ \\cup {0} or R+ \\cup {0}. A systematic development is made starting from set interval vector spaces to group interval vector spaces. Vector spaces are taken as interval polynomials or interval matrices or just intervals over suitable sets or semigroups or groups. Main feature of this book is the authors have given over 350 examples. This book has six chapters. Chapter one is introductory in nature. Chapter two introduces the notion of set interval linear algebras of type one and two. Set fuzzy interval linear algebras and their algebras and their properties are discussed in chapter three. Chapter four introduces several types of interval linear bialgebras and bivector spaces and studies them. The possible applications are given in chapter five. Chapter six suggests nearly 110 problems of all levels.
Shaon Sahoo; Soumya Kanti Ganguly
2015-02-01T23:59:59.000Z
Contrary to the actual nonlinear Glauber model (NLGM), the linear Glauber model (LGM) is exactly solvable, although the detailed balance condition is not generally satisfied. This motivates us to address the issue of writing the transition rate ($w_j$) in a best possible linear form such that the mean squared error in satisfying the detailed balance condition is least. The advantage of this work is that, by studying the LGM analytically, we will be able to anticipate how the kinetic properties of an arbitrary Ising system depend on the temperature and the coupling constants. The analytical expressions for the optimal values of the parameters involved in the linear $w_j$ are obtained using a simple Moore-Penrose pseudoinverse matrix. This approach is quite general, in principle applicable to any system and can reproduce the exact results for one dimensional Ising system. In the continuum limit, we get a linear time-dependent Ginzburg-Landau (TDGL) equation from the Glauber's microscopic model of non-conservative dynamics. We analyze the critical and dynamic properties of the model, and show that most of the important results obtained in different studies can be reproduced by our new mathematical approach. We will also show in this paper that the effect of magnetic field can easily be studied within our approach; in particular, we show that the inverse of relaxation time changes quadratically with (weak) magnetic field and that the fluctuation-dissipation theorem is valid for our model.
Linear Programming Environmental
Nagurney, Anna
Linear Program to control air pollution was developed in 1968 by Teller, which minimized cost Fall 2006 #12;Topics · Introduction · Background · Air · Land · Water #12;Introduction · "The United States spends more than 2% of its gross domestic product on pollution control, and this is more than any
Automatic Linear Orders (Revised Version)
Stephan, Frank
CDMTCS Research Report Series Automatic Linear Orders and Trees (Revised Version) Bakhadyr; Automatic Linear Orders and Trees Bakhadyr Khoussainov, Sasha Rubin and Frank Stephan November 13, 2003 emphasis is on trees and linear orders. We study the relationship between automatic linear orders and trees
Becker, Jörg D
2015-01-01T23:59:59.000Z
In many European countries the growth of the real GDP per capita has been linear since 1950. An explanation for this linearity is still missing. We propose that in artificial intelligence we may find models for a linear growth of performance. We also discuss possible consequences of the fact that in systems with linear growth the percentage growth goes to zero.
Physics Case for the International Linear Collider
Keisuke Fujii; Christophe Grojean; Michael E. Peskin; Tim Barklow; Yuanning Gao; Shinya Kanemura; Hyungdo Kim; Jenny List; Mihoko Nojiri; Maxim Perelstein; Roman Poeschl; Juergen Reuter; Frank Simon; Tomohiko Tanabe; Jaehoon Yu; James D. Wells; Hitoshi Murayama; Hitoshi Yamamoto
2015-06-26T23:59:59.000Z
We summarize the physics case for the International Linear Collider (ILC). We review the key motivations for the ILC presented in the literature, updating the projected measurement uncertainties for the ILC experiments in accord with the expected schedule of operation of the accelerator and the results of the most recent simulation studies.
Physics Case for the International Linear Collider
Fujii, Keisuke; Peskin, Michael E; Barklow, Tim; Gao, Yuanning; Kanemura, Shinya; Kim, Hyungdo; List, Jenny; Nojiri, Mihoko; Perelstein, Maxim; Poeschl, Roman; Reuter, Juergen; Simon, Frank; Tanabe, Tomohiko; Yu, Jaehoon; Wells, James D; Murayama, Hitoshi; Yamamoto, Hitoshi
2015-01-01T23:59:59.000Z
We summarize the physics case for the International Linear Collider (ILC). We review the key motivations for the ILC presented in the literature, updating the projected measurement uncertainties for the ILC experiments in accord with the expected schedule of operation of the accelerator and the results of the most recent simulation studies.
Banks, R.M.
1986-01-14T23:59:59.000Z
This patent describes a linear output nitinol engine consisting of a number of integrated communicating parts. The engine has an external support framework which is described in detail. The patent further describes a wire transport mechanism, a pair of linkage levers with a loom secured to them, a number of nitinol wires strung between the looms, and a power takeoff block secured to the linkage levers. A pulley positioned in a flip-flop supporting bracket and a power takeoff modality including a tension member connected to a power output cable in order to provide linear power output transmission is described. A method for biasing the timing and the mechanism for timing the synchronization of the throw over arms and the flip-flop of the pulley are also described.
Buttram, M.T.; Ginn, J.W.
1988-06-21T23:59:59.000Z
A linear induction accelerator includes a plurality of adder cavities arranged in a series and provided in a structure which is evacuated so that a vacuum inductance is provided between each adder cavity and the structure. An energy storage system for the adder cavities includes a pulsed current source and a respective plurality of bipolar converting networks connected thereto. The bipolar high-voltage, high-repetition-rate square pulse train sets and resets the cavities. 4 figs.
Combustion powered linear actuator
Fischer, Gary J. (Albuquerque, NM)
2007-09-04T23:59:59.000Z
The present invention provides robotic vehicles having wheeled and hopping mobilities that are capable of traversing (e.g. by hopping over) obstacles that are large in size relative to the robot and, are capable of operation in unpredictable terrain over long range. The present invention further provides combustion powered linear actuators, which can include latching mechanisms to facilitate pressurized fueling of the actuators, as can be used to provide wheeled vehicles with a hopping mobility.
The International Linear Collider
Barish, Barry
2013-01-01T23:59:59.000Z
In this article, we describe the key features of the recently completed technical design for the International Linear Collider (ILC), a 200-500 GeV linear electron-positron collider (expandable to 1 TeV) that is based on 1.3 GHz superconducting radio-frequency (SCRF) technology. The machine parameters and detector characteristics have been chosen to complement the Large Hadron Collider physics, including the discovery of the Higgs boson, and to further exploit this new particle physics energy frontier with a precision instrument. The linear collider design is the result of nearly twenty years of R&D, resulting in a mature conceptual design for the ILC project that reflects an international consensus. We summarize the physics goals and capability of the ILC, the enabling R&D and resulting accelerator design, as well as the concepts for two complementary detectors. The ILC is technically ready to be proposed and built as a next generation lepton collider, perhaps to be built in stages beginning as a Hig...
Linear optimization Linear programming using the Simplex method
McCready, Mark J.
Linear optimization Linear programming using the Simplex method Maximize M = 40 x1 + 60 x2 subject, that increasing x2 is the way to get the biggest impact. The idea of the simplex method is to move only
Algorithms for Solving Linear Congruences and Systems of Linear Congruences
Florentin Smarandache
2007-02-16T23:59:59.000Z
In this article we determine several theorems and methods for solving linear congruences and systems of linear congruences, and we find the number of distinct solutions. Many examples of solving congruences are given.
Linear and angular retroreflecting interferometric alignment target
Maxey, L. Curtis (Powell, TN)
2001-01-01T23:59:59.000Z
The present invention provides a method and apparatus for measuring both the linear displacement and angular displacement of an object using a linear interferometer system and an optical target comprising a lens, a reflective surface and a retroreflector. The lens, reflecting surface and retroreflector are specifically aligned and fixed in optical connection with one another, creating a single optical target which moves as a unit that provides multi-axis displacement information for the object with which it is associated. This displacement information is useful in many applications including machine tool control systems and laser tracker systems, among others.
Park, Joung Won
2010-10-12T23:59:59.000Z
, and Temperature (PVT) variations and increase high power input capability. After analyzing and designing a resistive feedback LNA, novel linearization methods were applied. A highly linear broadband LNA is designed and simulated in 65nm CMOS technology. Simulation...
Park, Joung Won
2010-10-12T23:59:59.000Z
In this work, a highly linear broadband Low Noise Amplifier (LNA) is presented. The linearity issue in broadband Radio Frequency (RF) front-end is introduced, followed by an analysis of the specifications and requirements of a broadband LNA through...
The International Linear Collider
Marco Battaglia
2007-05-28T23:59:59.000Z
The International Linear Collider (ILC) is the next large scale project in accelerator particle physics. Colliding electrons with positrons at energies from 0.3 TeV up to about 1 TeV, the ILC is expected to provide the accuracy needed to complement the LHC data and extend the sensitivity to new phenomena at the high energy frontier and answer some of the fundamental questions in particle physics and in its relation to Cosmology. This paper reviews some highlights of the ILC physics program and some of the major challenges for the accelerator and detector design.
Linear Solvers 1.Introduction [1
McCalley, James D.
linear algebra packages including LAPACK, ScaLAPACK and PETSc, are built on top of BLAS. Most of standard, portable solver libraries available, including: BLAS (Basic linear algebra subprograms): Many (Automatically Tuned Linear Algebra Software package) is a version of BLAS that, upon installation, tests
Wave functions of linear systems
Tomasz Sowinski
2007-06-05T23:59:59.000Z
Complete analysis of quantum wave functions of linear systems in an arbitrary number of dimensions is given. It is shown how one can construct a complete set of stationary quantum states of an arbitrary linear system from purely classical arguments. This construction is possible because for linear systems classical dynamics carries the whole information about quantum dynamics.
Simple Linear Regression Basic Ideas
Simple Linear Regression Basic Ideas Some Examples Least Squares Statistical View of Least Squares of Least Squares #12;Simple Linear Regression Basic Ideas Some Examples Least Squares Basic Ideas Suppose #12;Simple Linear Regression Basic Ideas Some Examples Least Squares Basic Ideas Suppose we have two
Special set linear algebra and special set fuzzy linear algebra
W. B. Vasantha Kandasamy; Florentin Smarandache; K. Ilanthenral
2009-12-30T23:59:59.000Z
The authors in this book introduce the notion of special set linear algebra and special set fuzzy Linear algebra, which is an extension of the notion set linear algebra and set fuzzy linear algebra. These concepts are best suited in the application of multi expert models and cryptology. This book has five chapters. In chapter one the basic concepts about set linear algebra is given in order to make this book a self contained one. The notion of special set linear algebra and their fuzzy analogue is introduced in chapter two. In chapter three the notion of special set semigroup linear algebra is introduced. The concept of special set n-vector spaces, n greater than or equal to three is defined and their fuzzy analogue is their fuzzy analogue is given in chapter four. The probable applications are also mentioned. The final chapter suggests 66 problems.
The International Linear Collider
Karsten Buesser
2013-06-13T23:59:59.000Z
The International Linear Collider (ILC) is a proposed electron-positron collider for the centre-of-mass energy range of 200 to 500 GeV and with upgrade options towards 1 TeV. The ILC would be the ideal tool to explore with high precision the properties of the new Higgs-like particle that has recently been discovered at the LHC with a mass of around 125 GeV. The ILC accelerator design is based on the mature superconducting technology that has been developed in the TESLA collaboration and that is currently being used for the European XFEL. The exploitation of the huge physics potential of the ILC is a challenge for the design of the ILC detectors.
Positrons for linear colliders
Ecklund, S.
1987-11-01T23:59:59.000Z
The requirements of a positron source for a linear collider are briefly reviewed, followed by methods of positron production and production of photons by electromagnetic cascade showers. Cross sections for the electromagnetic cascade shower processes of positron-electron pair production and Compton scattering are compared. A program used for Monte Carlo analysis of electromagnetic cascades is briefly discussed, and positron distributions obtained from several runs of the program are discussed. Photons from synchrotron radiation and from channeling are also mentioned briefly, as well as positron collection, transverse focusing techniques, and longitudinal capture. Computer ray tracing is then briefly discussed, followed by space-charge effects and thermal heating and stress due to showers. (LEW)
Luminosity Spectrum Reconstruction at Linear Colliders
Stéphane Poss; André Sailer
2014-04-11T23:59:59.000Z
A good knowledge of the luminosity spectrum is mandatory for many measurements at future e+e- colliders. As the beam-parameters determining the luminosity spectrum cannot be measured precisely, the luminosity spectrum has to be measured through a gauge process with the detector. The measured distributions, used to reconstruct the spectrum, depend on Initial State Radiation, cross-section, and Final State Radiation. To extract the basic luminosity spectrum, a parametric model of the luminosity spectrum is created, in this case the spectrum at the 3 TeV Compact Linear Collider (CLIC). The model is used within a reweighting technique to extract the luminosity spectrum from measured Bhabha event observables, taking all relevant effects into account. The centre-of-mass energy spectrum is reconstructed within 5% over the full validity range of the model. The reconstructed spectrum does not result in a significant bias or systematic uncertainty in the exemplary physics benchmark process of smuon pair production.
Linear Algebraic Method for Non-Linear Map Analysis
Yu,L.; Nash, B.
2009-05-04T23:59:59.000Z
We present a newly developed method to analyze some non-linear dynamics problems such as the Henon map using a matrix analysis method from linear algebra. Choosing the Henon map as an example, we analyze the spectral structure, the tune-amplitude dependence, the variation of tune and amplitude during the particle motion, etc., using the method of Jordan decomposition which is widely used in conventional linear algebra.
Direct characterization of linear-optical networks
Saleh Rahimi-Keshari; Matthew A. Broome; Robert Fickler; Alessandro Fedrizzi; Timothy C. Ralph; Andrew G. White
2013-05-31T23:59:59.000Z
We introduce an efficient method for fully characterizing multimode linear-optical networks. Our approach requires only a standard laser source and intensity measurements to directly and uniquely determine all moduli and non-trivial phases of the matrix describing a network. We experimentally demonstrate the characterization of a $6{\\times}6$ fiber-optic network and independently verify the results via nonclassical two-photon interference.
A polynomial projection algorithm for linear programming
2013-05-03T23:59:59.000Z
We propose a polynomial algorithm for linear programming. The algorithm represents a linear optimization or decision problem in the form of a system of linear ...
International linear collider reference design report
Aarons, G.
2008-01-01T23:59:59.000Z
A. Loew, et al. , “International Linear Collider Technologyfor the International Linear Collider”, in preparation [37]for the International Linear Collider,” in PAC05,http://
Kliman, G.B.; Brynsvold, G.V.; Jahns, T.M.
1989-08-22T23:59:59.000Z
A winding and method of winding for a submersible linear pump for pumping liquid sodium are disclosed. The pump includes a stator having a central cylindrical duct preferably vertically aligned. The central vertical duct is surrounded by a system of coils in slots. These slots are interleaved with magnetic flux conducting elements, these magnetic flux conducting elements forming a continuous magnetic field conduction path along the stator. The central duct has placed therein a cylindrical magnetic conducting core, this core having a cylindrical diameter less than the diameter of the cylindrical duct. The core once placed to the duct defines a cylindrical interstitial pumping volume of the pump. This cylindrical interstitial pumping volume preferably defines an inlet at the bottom of the pump, and an outlet at the top of the pump. Pump operation occurs by static windings in the outer stator sequentially conveying toroidal fields from the pump inlet at the bottom of the pump to the pump outlet at the top of the pump. The winding apparatus and method of winding disclosed uses multiple slots per pole per phase with parallel winding legs on each phase equal to or less than the number of slots per pole per phase. The slot sequence per pole per phase is chosen to equalize the variations in flux density of the pump sodium as it passes into the pump at the pump inlet with little or no flux and acquires magnetic flux in passage through the pump to the pump outlet. 4 figs.
Kliman, Gerald B. (Schenectady, NY); Brynsvold, Glen V. (San Jose, CA); Jahns, Thomas M. (Schenectady, NY)
1989-01-01T23:59:59.000Z
A winding and method of winding for a submersible linear pump for pumping liquid sodium is disclosed. The pump includes a stator having a central cylindrical duct preferably vertically aligned. The central vertical duct is surrounded by a system of coils in slots. These slots are interleaved with magnetic flux conducting elements, these magnetic flux conducting elements forming a continuous magnetic field conduction path along the stator. The central duct has placed therein a cylindrical magnetic conducting core, this core having a cylindrical diameter less than the diameter of the cylindrical duct. The core once placed to the duct defines a cylindrical interstitial pumping volume of the pump. This cylindrical interstitial pumping volume preferably defines an inlet at the bottom of the pump, and an outlet at the top of the pump. Pump operation occurs by static windings in the outer stator sequentially conveying toroidal fields from the pump inlet at the bottom of the pump to the pump outlet at the top of the pump. The winding apparatus and method of winding disclosed uses multiple slots per pole per phase with parallel winding legs on each phase equal to or less than the number of slots per pole per phase. The slot sequence per pole per phase is chosen to equalize the variations in flux density of the pump sodium as it passes into the pump at the pump inlet with little or no flux and acquires magnetic flux in passage through the pump to the pump outlet.
6, 66276694, 2006 linearized ozone
Boyer, Edmond
ACPD 6, 66276694, 2006 CHEM2D-OPP linearized ozone photochemistry J. P. McCormack et al. Title Chemistry and Physics Discussions CHEM2D-OPP: A new linearized gas-phase ozone photochemistry.mccormack@nrl.navy.mil) 6627 #12;ACPD 6, 66276694, 2006 CHEM2D-OPP linearized ozone photochemistry J. P. McCormack et al
Linear Programming and Kantorovich Spaces
S. Kutateladze
2009-05-08T23:59:59.000Z
This is a brief overview of the life of Leonid Kantorovich (1912--1986) and his contribution to the fields of linear programming and ordered vector spaces.
Linear Algebra 1: Computing canonical forms in exact linear
Pernet, Clément
Linear Algebra 1: Computing canonical forms in exact linear algebra Clément PERNET, LIG, where U is invertible Reduced echelon form: E = 1 0 0 1 0 1 Gauss-Jordan elimination #12 a field: B = U-1 AU Frobenius normal form (or canonical rational form): F = CP0 CP1 ... CPk
Identifying Redundant Linear Constraints in Systems of Linear ...
2006-06-22T23:59:59.000Z
Jun 22, 2006 ... redundant linear constraints from the system (2.1) and (2.2). ... It is informative to note that in the above theorem, the optimal ..... S. Boyd and L. El Ghaoui, “Linear Matrix Inequalities in System and Control Theory”, SIAM, vol.
An elementary proof of the robustness of the linear hyperbolic flows
Mauro Patrão
2009-09-20T23:59:59.000Z
We present an elementary proof that the qualitative picture of a linear hyperbolic flow is insensitive to slight measurements errors in its associated vector field.
Linear tailored gain broad area semiconductor lasers
Lindsey, C.P.; Mehuys, D.; Yariv, A.
1987-06-01T23:59:59.000Z
Tailored gain semiconductor lasers capable of high-power operation with single-lobed, nearly diffraction limited beamwidths only a few degrees wide have been demonstrated in proton implanted chirped arrays and ''halftone'' broad area lasers. The authors analyze lasers with a linear gain gradient, and obtain analytic approximations for their unsaturated optical eigenmodes. Unlike a uniform array, the fundamental mode of a linear tailored gain laser is the mode at threshold. Mode discrimination may be controlled by lasing the spatial gain gradient. All modes of asymmetric tailored gain waveguides have single-lobed far-field patterns offset from 0/sup 0/. Finally, they utilize tailored gain broad area lasers to make a measurement of the antiguiding parameter, and find b = 2.5 +- 0.5, in agreement with previous results.
KWIC Index for Numerical Linear Algebra
Carpenter, J.A.
1983-07-01T23:59:59.000Z
This report is a sequel to ORNL/CSD-106 in the ongoing supplements to Professor A.S. Householder's KWIC Index for Numerical Algebra. Beginning with the previous supplement, the subject has been restricted to Numerical Linear Algebra, roughly characterized by the American Mathematical Society's classification sections 15 and 65F but with little coverage of infinite matrices, matrices over fields of characteristics other than zero, operator theory, optimization and those parts of matrix theory primarily combinatorial in nature. Some consideration is given to the uses of graph theory in Numerical Linear Algebra, particularly with respect to algorithms for sparse matrix computations. The period covered by this report is roughly the calendar year 1982 as measured by the appearance of the articles in the American Mathematical Society's Contents of Mathematical Publications lagging actual appearance dates by up to nearly half a year. The review citations are limited to the Mathematical Reviews (MR).
Amplitude Linearizers for PEP-II 1.2 MW Klystrons and LLRF Systems
Van Winkle, D.; Browne, J.; Fox, J.D.; Mastorides, T.; Rivetta, C.; Teytelman, D.; /SLAC
2006-07-18T23:59:59.000Z
The PEP-II B-factory has aggressive current increases planned for luminosity through 2008. At 2.2A (HER) on 4A (LER) currents, we estimate that longitudinal growth rates will be comparable to the damping rates currently achieved in the existing low level RF and longitudinal feedback systems. Prior to having a good non-linear time domain model [1] it was postulated that klystron small signal gain non-linearity may be contributing to measured longitudinal growth rates being higher than linearly predicted growth rates. Five prototype klystron amplitude modulation linearizers have been developed to explore improved linearity in the LLRF system. The linearizers operate at 476 MHz with 15 dB dynamic range and 1 MHz linear control bandwidth. Results from lab measurements and high current beam tests are presented. Future development plans, conclusions from beam testing and ideas for future use of this linearization technique are presented.
CLIC e+e- Linear Collider Studies
Dominik Dannheim; Philippe Lebrun; Lucie Linssen; Daniel Schulte; Frank Simon; Steinar Stapnes; Nobukazu Toge; Harry Weerts; James Wells
2012-08-07T23:59:59.000Z
This document provides input from the CLIC e+e- linear collider studies to the update process of the European Strategy for Particle Physics. It is submitted on behalf of the CLIC/CTF3 collaboration and the CLIC physics and detector study. It describes the exploration of fundamental questions in particle physics at the energy frontier with a future TeV-scale e+e- linear collider based on the Compact Linear Collider (CLIC) two-beam acceleration technique. A high-luminosity high-energy e+e- collider allows for the exploration of Standard Model physics, such as precise measurements of the Higgs, top and gauge sectors, as well as for a multitude of searches for New Physics, either through direct discovery or indirectly, via high-precision observables. Given the current state of knowledge, following the observation of a \\sim125 GeV Higgs-like particle at the LHC, and pending further LHC results at 8 TeV and 14 TeV, a linear e+e- collider built and operated in centre-of-mass energy stages from a few-hundred GeV up to a few TeV will be an ideal physics exploration tool, complementing the LHC. Two example scenarios are presented for a CLIC accelerator built in three main stages of 500 GeV, 1.4 (1.5) TeV, and 3 TeV, together with the layout and performance of the experiments and accompanied by cost estimates. The resulting CLIC physics potential and measurement precisions are illustrated through detector simulations under realistic beam conditions.
Linearization and Efficiency Enhancement Techniques for RF and Baseband Analog Circuits
Mobarak, Mohamed Salah Mohamed
2012-02-14T23:59:59.000Z
operation is verified with the measurement results of a 400 MHz class D power amplifier. Chapter IV presents a study of class A power amplifier dynamic biasing and its effect on the amplifier linearity. High efficiency and high linearity operation... to low power supply rejection ratio (PSRR). The filter in [7] achieves high linearity with relatively low power but higher noise. Trade-offs between linearity, noise, power, and operating frequency are common and have been incorporated into figures...
Direct Probes of Linearly Polarized Gluons inside Unpolarized Hadrons
Boer, Daniel; /Groningen, KVI; Brodsky, Stanley J.; /SLAC /Southern Denmark U., CP3-Origins; Mulders, Piet J.; /Brussels U., IIHE; Pisano, Cristian; /Cagliari U. /INFN, Cagliari
2011-02-07T23:59:59.000Z
We show that the unmeasured distribution of linearly polarized gluons inside unpolarized hadrons can be directly probed in jet or heavy quark pair production both in electron-hadron and hadron-hadron collisions. We present expressions for the simplest cos 2{phi} asymmetries and estimate their maximal value in the particular case of electron-hadron collisions. Measurements of the linearly polarized gluon distribution in the proton should be feasible in future EIC or LHeC experiments.
A Gibbs Sampler for Multivariate Linear Regression
Mantz, Adam B
2015-01-01T23:59:59.000Z
Kelly (2007, hereafter K07) described an efficient algorithm, using Gibbs sampling, for performing linear regression in the fairly general case where non-zero measurement errors exist for both the covariates and response variables, where these measurements may be correlated (for the same data point), where the response variable is affected by intrinsic scatter in addition to measurement error, and where the prior distribution of covariates is modeled by a flexible mixture of Gaussians rather than assumed to be uniform. Here I extend the K07 algorithm in two ways. First, the procedure is generalized to the case of multiple response variables. Second, I describe how to model the prior distribution of covariates using a Dirichlet process, which can be thought of as a Gaussian mixture where the number of mixture components is learned from the data. I present an example of multivariate regression using the extended algorithm, namely fitting scaling relations of the gas mass, temperature, and luminosity of dynamica...
Acoustic emission linear pulse holography
Collins, H.D.; Busse, L.J.; Lemon, D.K.
1983-10-25T23:59:59.000Z
This device relates to the concept of and means for performing Acoustic Emission Linear Pulse Holography, which combines the advantages of linear holographic imaging and Acoustic Emission into a single non-destructive inspection system. This unique system produces a chronological, linear holographic image of a flaw by utilizing the acoustic energy emitted during crack growth. The innovation is the concept of utilizing the crack-generated acoustic emission energy to generate a chronological series of images of a growing crack by applying linear, pulse holographic processing to the acoustic emission data. The process is implemented by placing on a structure an array of piezoelectric sensors (typically 16 or 32 of them) near the defect location. A reference sensor is placed between the defect and the array.
Linear Consistency Testing Yonatan Aumann
Sudan, Madhu
of Blum, Luby and Rubinfeld [?] to check the linear-consistency of three functions f1, f2, f3 mapping and check if f1(x) + f2(y) = f3(x + y). We analyze this test for two cases: (1) G and H are arbitrary the consistency of multiple functions. Given a triple of functions f1, f2, f3 : G H, we say that they are "linear
A linear induction motor conveyer
Solinsky, Kenneth Sheldon
1973-01-01T23:59:59.000Z
A LINEAR INCUCTION MOTOR CONVEYER A Thesis Kenneth Sheldon. Solinsky Submitted to the Graduate College of Texas AkM University in partial fulfillment of the requirement for the degree of MASTER 07 SCIENCE May 1973 Major Subject: Industrial.... Howie, USAMC-ITC-P/P, Red River Army Depot, Texarkana, Texas 75501. Approved owxe, xe , ro uc o uction Engineering For the Commander ne , grec or, I A LINEAR INDUCTION MOTOR CONVEYER A Thesis by Kenneth Sheldon Solinsky App ved as to style...
Precision Polarimetry at the International Linear Collider
C. Helebrant; D. Käfer; J. List
2008-10-13T23:59:59.000Z
The International Linear Collider (ILC) will collide polarised electrons and positrons at beam energies of 45.6 GeV to 250 GeV and optionally up to 500 GeV. To fully exploit the physics potential of this machine, not only the luminosity and beam energy have to be known precisely, but also the polarisation of the particles has to be measured with an unprecedented precision of dP/P ~ 0.25% for both beams. An overall concept of high precision polarisation measurements at high beam energies will be presented. The focus will be on the polarimeters (up- and downstream of the e+e- interaction point) embedded in the ILC beam delivery system. Some challenges concerning the design of the Compton spectrometers and the appropriate Cherenkov detectors for each polarimeter are discussed. Detailed studies of photodetectors and their readout electronics are presented focusing specifically on the linearity of the device, since this is expected to be the limiting factor on the precision of the polarisation measurement at the ILC.
Physics at the International Linear Collider
J. List
2006-05-18T23:59:59.000Z
The International Linear Collider (ILC) is the next large project in accelerator based particle physics. It is complementary to the LHC in many aspects. Measurements from both machines together will finally shed light onto the known deficiencies of the Standard Model of particle physics and allow to unveil a possible underlying more fundamental theory. Here, the possibilities of the ILC will be discussed with special emphasis on the Higgs sector and on topics with a strong connection to cosmological questions like extra dimensions or dark matter candidates.
Damage Identification with Linear Discriminant Operators
Farrar, C.R.; Nix, D.A.; Duffey, T.A.; Cornwell, P.J.; Pardoen, G.C.
1999-02-08T23:59:59.000Z
This paper explores the application of statistical pattern recognition and machine learning techniques to vibration-based damage detection. First, the damage detection process is described in terms of a problem in statistical pattern recognition. Next, a specific example of a statistical-pattern-recognition-based damage detection process using a linear discriminant operator, ''Fisher's Discriminant'', is applied to the problem of identifying structural damage in a physical system. Accelerometer time histories are recorded from sensors attached to the system as that system is excited using a measured input. Linear Prediction Coding (LPC) coefficients are utilized to convert the accelerometer time-series data into multi-dimensional samples representing the resonances of the system during a brief segment of the time series. Fisher's discriminant is then used to find the linear projection of the LPC data distributions that best separates data from undamaged and damaged systems. The method i s applied to data from concrete bridge columns as the columns are progressively damaged. For this case, the method captures a clear distinction between undamaged and damaged vibration profiles. Further, the method assigns a probability of damage that can be used to rank systems in order of priority for inspection.
The Next Linear Collider: NLC2001
D. Burke et al.
2002-01-14T23:59:59.000Z
Recent studies in elementary particle physics have made the need for an e{sup +}e{sup -} linear collider able to reach energies of 500 GeV and above with high luminosity more compelling than ever [1]. Observations and measurements completed in the last five years at the SLC (SLAC), LEP (CERN), and the Tevatron (FNAL) can be explained only by the existence of at least one particle or interaction that has not yet been directly observed in experiment. The Higgs boson of the Standard Model could be that particle. The data point strongly to a mass for the Higgs boson that is just beyond the reach of existing colliders. This brings great urgency and excitement to the potential for discovery at the upgraded Tevatron early in this decade, and almost assures that later experiments at the LHC will find new physics. But the next generation of experiments to be mounted by the world-wide particle physics community must not only find this new physics, they must find out what it is. These experiments must also define the next important threshold in energy. The need is to understand physics at the TeV energy scale as well as the physics at the 100-GeV energy scale is now understood. This will require both the LHC and a companion linear electron-positron collider. A first Zeroth-Order Design Report (ZDR) [2] for a second-generation electron-positron linear collider, the Next Linear Collider (NLC), was published five years ago. The NLC design is based on a high-frequency room-temperature rf accelerator. Its goal is exploration of elementary particle physics at the TeV center-of-mass energy, while learning how to design and build colliders at still higher energies. Many advances in accelerator technologies and improvements in the design of the NLC have been made since 1996. This Report is a brief update of the ZDR.
Algorithms for Symmetric Linear and Integer Programs
Bödi, Richard; Joswig, Michael
2010-01-01T23:59:59.000Z
This paper deals with exploiting symmetry for solving linear and integer programming problems. Basic properties of linear representations of finite groups can be used to reduce symmetric linear programming to solving linear programs of lower dimension. Combining this approach with knowledge of the geometry of feasible integer solutions yields an algorithm for solving highly symmetric integer linear programs which only takes time which is linear in the number of constraints and quadratic in the dimension.
Linear conic optimization for nonlinear optimal control
Didier Henrion
2014-07-07T23:59:59.000Z
Jul 7, 2014 ... Abstract: Infinite-dimensional linear conic formulations are described for nonlinear optimal control problems. The primal linear problem consists ...
Stochastic linear programming games with concave preferences
2014-12-04T23:59:59.000Z
We study stochastic linear programming games: a class of stochastic ... be seen as linear programming games; examples include assignment games (Shapley ...
High dimensional linear inverse modelling
Cooper, Fenwick C
2015-01-01T23:59:59.000Z
We introduce and demonstrate two linear inverse modelling methods for systems of stochastic ODE's with accuracy that is independent of the dimensionality (number of elements) of the state vector representing the system in question. Truncation of the state space is not required. Instead we rely on the principle that perturbations decay with distance or the fact that for many systems, the state of each data point is only determined at an instant by itself and its neighbours. We further show that all necessary calculations, as well as numerical integration of the resulting linear stochastic system, require computational time and memory proportional to the dimensionality of the state vector.
Highly linear low noise amplifier
Ganesan, Sivakumar
2007-09-17T23:59:59.000Z
VgVgVgi (4) Where gm1 is its transconductance, gm2 represents its second order non-linearity obtained by the second order derivative of FET transfer characteristics (Id-Vgs) and gm3 is its third order non-linearity obtained by the third order... for the above mentioned currents are given below. 3 3213 2 21211 3 3 3 3 2 21 *),,(*),(*)( xxxBAout BbB AaAaAaA VsssCVssCVsCiii Vgi VgVgVgi ++=+= = ++= (14) Where g1a represents the transconductance of the main amplifier and g2a and g3a represent the second...
On the Observability of Linear Systems from Random, Compressive Measurements
Sanandaji, Borhan M.
Efficiency and Renewable Energy Grant DE-FG36-08GO88100. we have yK = OKx0. (3) If OK has full column rank (i Property (RIP), which is central to much analysis in CS. We also illustrate our results with a simple case-0830320, DARPA Grant HR0011-08- 1-0078, NSF grant CNS-0931748 and Department of Energy, Office of Energy
Linear regression issues in astronomy
Babu, G. Jogesh
Linear regression issues in astronomy Eric Feigelson Summer School in astrostatistics References regression Seeking the intrinsic relationship between two properties without specifying `dependent' and `independent' variables OLS(Y|X) OLS(X|Y) (inverse regr) Four symmetrical regression lines #12;Analytical
Sikes, Derek S.
MATH F314-F71 Linear Algebra Summer 2014 Instructor: Dr. Dana E. Madison, demadison2@alaska is by email. Class Dates and Times: July 7 August 14, 12:00pm 1:50pm Textbook: Linear Algebra and its: This is a first course in linear algebra that starts with the basic objects vectors, matrices, systems of linear
Termination of Linear Programs Ashish Tiwari
Tiwari, Ashish
Termination of Linear Programs Ashish Tiwari SRI International, 333 Ravenswood Ave, Menlo Park, CA, U.S.A tiwari@csl.sri.com Abstract. We show that termination of a class of linear loop programs is decidable. Linear loop programs are discrete-time linear systems with a loop condition governing termination
Termination of Linear Programs Ashish Tiwari #
Tiwari, Ashish
Termination of Linear Programs Ashish Tiwari # SRI International, 333 Ravenswood Ave, Menlo Park, CA, U.S.A tiwari@csl.sri.com Abstract. We show that termination of a class of linear loop programs is decidable. Linear loop programs are discreteÂtime linear systems with a loop condition governing termination
Fast exact linear algebra, LinBox
Pernet, Clément
Fast exact linear algebra, LinBox Clément Pernet Introduction LinBox: an overview Principles-place eliminations Fast matrix multiplication Linear algebra over big integers Fast exact linear algebra: LinBox Clément PERNET SAGE Days 6, November 11, 2007 #12;Fast exact linear algebra, LinBox Clément Pernet
PROCESS CONTROLLABILITY ANALYSIS USING LINEAR AND NONLINEAR
Skogestad, Sigurd
PROCESS CONTROLLABILITY ANALYSIS USING LINEAR AND NONLINEAR OPTIMISATION Samara D. Chenery October linear and nonlinear dynamic optimisation techniques. For the linear case an optimal control problem is formulated to assess the best achievable performance for the set of linear time invariant (LTI) controllers
Why quantum dynamics is linear
Thomas F. Jordan
2007-02-16T23:59:59.000Z
Quantum dynamics is linear. How do we know? From theory or experiment? The history of this question is reviewed. Nonlinear generalizations of quantum mechanics have been proposed. They predict small but clear nonlinear effects, which very accurate experiments have not seen. Is there a reason in principle why nonlinearity is not found? Is it impossible? Does quantum dynamics have to be linear? Attempts to prove this have not been decisive, because either their assumptions are not compelling or their arguments are not conclusive. The question has been left unsettled. There is a simple answer, based on a simple assumption. It was found in two steps separated by 44 years. They are steps back to simpler and more compelling assumptions. A proof of the assumptions of the Wigner-Bargmann proof has been known since 1962. It assumes that the maps of density matrices in time are linear. For this step, it is also assumed that density matrices are mapped one-to-one onto density matrices. An alternative is to assume that pure states are mapped one-to-one onto pure states and that entropy does not decrease. In a step taken in 2006, it is proved that the maps of density matrices in time are linear. It is assumed, as in the earlier step, that at each time the physical quantities and states are described by the usual linear structures of quantum mechanics, so the question is only about how things change in time. Beyond that, the proof assumes only that the dynamics does not depend on anything outside the system, but must allow the system to be described as part of a larger system.
Set Linear Algebra and Set Fuzzy Linear Algebra
W. B. Vasantha Kandasamy; Florentin Smarandache; K. Ilanthenral
2008-06-17T23:59:59.000Z
In this book, the authors define the new notion of set vector spaces which is the most generalized form of vector spaces. Set vector spaces make use of the least number of algebraic operations, therefore, even a non-mathematician is comfortable working with it. It is with the passage of time, that we can think of set linear algebras as a paradigm shift from linear algebras. Here, the authors have also given the fuzzy parallels of these new classes of set linear algebras. This book is divided into seven chapters. The first chapter briefly recalls some of the basic concepts in order to make this book self-contained. Chapter two introduces the notion of set vector spaces which is the most generalized concept of vector spaces. Set vector spaces lends itself to define new classes of vector spaces like semigroup vector spaces and group vector spaces. These are also generalization of vector spaces. The fuzzy analogue of these concepts are given in Chapter three. In Chapter four, set vector spaces are generalized to biset bivector spaces and not set vector spaces. This is done taking into account the advanced information technology age in which we live. As mathematicians, we have to realize that our computer-dominated world needs special types of sets and algebraic structures. Set n-vector spaces and their generalizations are carried out in Chapter five. Fuzzy n-set vector spaces are introduced in the sixth chapter. The seventh chapter suggests more than three hundred problems.
Linear accelerator for radioisotope production
Hansborough, L.D.; Hamm, R.W.; Stovall, J.E.
1982-02-01T23:59:59.000Z
A 200- to 500-..mu..A source of 70- to 90-MeV protons would be a valuable asset to the nuclear medicine program. A linear accelerator (linac) can achieve this performance, and it can be extended to even higher energies and currents. Variable energy and current options are available. A 70-MeV linac is described, based on recent innovations in linear accelerator technology; it would be 27.3 m long and cost approx. $6 million. By operating the radio-frequency (rf) power system at a level necessary to produce a 500-..mu..A beam current, the cost of power deposited in the radioisotope-production target is comparable with existing cyclotrons. If the rf-power system is operated at full power, the same accelerator is capable of producing an 1140-..mu..A beam, and the cost per beam watt on the target is less than half that of comparable cyclotrons.
Linearized supergravity from Matrix theory
D. Kabat; W. Taylor
1998-03-10T23:59:59.000Z
We show that the linearized supergravity potential between two objects arising from the exchange of quanta with zero longitudinal momentum is reproduced to all orders in 1/r by terms in the one-loop Matrix theory potential. The essential ingredient in the proof is the identification of the Matrix theory quantities corresponding to moments of the stress tensor and membrane current. We also point out that finite-N Matrix theory violates the equivalence principle.
Precision linear ramp function generator
Jatko, W. Bruce (Knoxville, TN); McNeilly, David R. (Maryville, TN); Thacker, Louis H. (Knoxville, TN)
1986-01-01T23:59:59.000Z
A ramp function generator is provided which produces a precise linear ramp unction which is repeatable and highly stable. A derivative feedback loop is used to stabilize the output of an integrator in the forward loop and control the ramp rate. The ramp may be started from a selected baseline voltage level and the desired ramp rate is selected by applying an appropriate constant voltage to the input of the integrator.
Precision linear ramp function generator
Jatko, W.B.; McNeilly, D.R.; Thacker, L.H.
1984-08-01T23:59:59.000Z
A ramp function generator is provided which produces a precise linear ramp function which is repeatable and highly stable. A derivative feedback loop is used to stabilize the output of an integrator in the forward loop and control the ramp rate. The ramp may be started from a selected baseline voltage level and the desired ramp rate is selected by applying an appropriate constant voltage to the input of the integrator.
Segmented rail linear induction motor
Cowan, M. Jr.; Marder, B.M.
1996-09-03T23:59:59.000Z
A segmented rail linear induction motor has a segmented rail consisting of a plurality of nonferrous electrically conductive segments aligned along a guideway. The motor further includes a carriage including at least one pair of opposed coils fastened to the carriage for moving the carriage. A power source applies an electric current to the coils to induce currents in the conductive surfaces to repel the coils from adjacent edges of the conductive surfaces. 6 figs.
Cast dielectric composite linear accelerator
Sanders, David M. (Livermore, CA); Sampayan, Stephen (Manteca, CA); Slenes, Kirk (Albuquerque, NM); Stoller, H. M. (Albuquerque, NM)
2009-11-10T23:59:59.000Z
A linear accelerator having cast dielectric composite layers integrally formed with conductor electrodes in a solventless fabrication process, with the cast dielectric composite preferably having a nanoparticle filler in an organic polymer such as a thermosetting resin. By incorporating this cast dielectric composite the dielectric constant of critical insulating layers of the transmission lines of the accelerator are increased while simultaneously maintaining high dielectric strengths for the accelerator.
Optimal Constructions of Fault Tolerant Optical Linear Compressors and Linear Decompressors
Chang, Cheng-Shang
1 Optimal Constructions of Fault Tolerant Optical Linear Compressors and Linear Decompressors Cheng linear compressors and linear decompressors. The basic network element for our constructions is scaled first obtain a fundamental result on the minimum con- struction complexity of a linear compressor
Jeong, Jaehoon "Paul"
Internet Measurement- System A Measurement- System B Control System GPS Satellite GPS Satellite GPS Receiver GPS Receiver 2) measurement 3) data1) command Methodology for One-way IP Performance Measurement This paper proposes a methodology for measurement of one-way IP performance metrics such as one-way delay
Another Detector for the International Linear Collider
Nural Akchurin; Sehwook Lee; Richard Wigmans; Hanna Arnold; Aaron Bazal; Robert Basili; John Hauptman; Tim Overton; Andrew Priest; Bingzhe Zhao; Alexander Mikhailichenko; Michele Cascella; Franco Grancagnolo; Giovanni Tassielli; Franco Bedeschi; Fabrizio Scuri; Sung Keun Park; Fedor Ignatov; Gabriella Gaudio; Michele Livan
2013-07-25T23:59:59.000Z
We describe another detectora designed for the International Linear Collider based on several tested instrumentation innovations in order to achieve the necessary experi- mental goal of a detecter that is 2-to-10 times better than the already excellent SLC and LEP detectors, in particular, (1) dual-readout calorimeter system based on the RD52/DREAM measurements at CERN, (2) a cluster-counting drift chamber based on the successful kloe chamber at Frascati, and (3) a second solenoid to return the magnetic flux without iron. A high-performance pixel vertex chamber is presently undefined. We discuss particle identification, momentum and energy resolutions, and the machine-detector interface that together offer the possibility of a very high-performance detector for $e^+e^-$physics up to $\\sqrt{s} = 1$ TeV.
Physics at International Linear Collider (ILC)
Hitoshi Yamamoto
2007-09-06T23:59:59.000Z
International Linear Collider (ILC) is an electron-positron collider with the initial center-of-mass energy of 500 GeV which is upgradable to about 1 TeV later on. Its goal is to study the physics at TeV scale with unprecedented high sensitivities. The main topics include precision measurements of the Higgs particle properties, studies of supersymmtric particles and the underlying theoretical structure if supersymmetry turns out to be realized in nature, probing alternative possibilities for the origin of mass, and the cosmological connections thereof. In many channels, Higgs and leptonic sector in particular, ILC is substantially more sensitive than LHC, and is complementary to LHC overall. In this short article, we will have a quick look at the capabilities of ILC.
System identification for passive linear quantum systems
Madalin Guta; Naoki Yamamoto
2014-08-27T23:59:59.000Z
System identification is a key enabling component for the implementation of quantum technologies, including quantum control. In this paper, we consider the class of passive linear input-output systems, and investigate several basic questions: (1) which parameters can be identified? (2) Given sufficient input-output data, how do we reconstruct system parameters? (3) How can we optimize the estimation precision by preparing appropriate input states and performing measurements on the output? We show that minimal systems can be identified up to a unitary transformation on the modes, and systems satisfying a Hamiltonian connectivity condition called "infecting" are completely identifiable. We propose a frequency domain design based on a Fisher information criterion, for optimizing the estimation precision for coherent input state. As a consequence of the unitarity of the transfer function, we show that the Heisenberg limit with respect to the input energy can be achieved using non-classical input states.
Method and apparatus for calibrating a linear variable differential transformer
Pokrywka, Robert J. (North Huntingdon, PA)
2005-01-18T23:59:59.000Z
A calibration apparatus for calibrating a linear variable differential transformer (LVDT) having an armature positioned in au LVDT armature orifice, and the armature able to move along an axis of movement. The calibration apparatus includes a heating mechanism with an internal chamber, a temperature measuring mechanism for measuring the temperature of the LVDT, a fixture mechanism with an internal chamber for at least partially accepting the LVDT and for securing the LVDT within the heating mechanism internal chamber, a moving mechanism for moving the armature, a position measurement mechanism for measuring the position of the armature, and an output voltage measurement mechanism. A method for calibrating an LVDT, including the steps of: powering the LVDT; heating the LVDT to a desired temperature; measuring the position of the armature with respect to the armature orifice; and measuring the output voltage of the LVDT.
Optimal Unravellings for Feedback Control in Linear Quantum Systems
H. M . Wiseman; A. C. Doherty
2005-02-26T23:59:59.000Z
For quantum systems with linear dynamics in phase space much of classical feedback control theory applies. However, there are some questions that are sensible only for the quantum case, such as: given a fixed interaction between the system and the environment what is the optimal measurement on the environment for a particular control problem? We show that for a broad class of optimal (state-based) control problems (the stationary Linear-Quadratic-Gaussian class), this question is a semi-definite program. Moreover, the answer also applies to Markovian (current-based) feedback.
The Electronic Journal of Linear Algebra. A publication of the International Linear Algebra Society.
Grudsky, Sergei
The Electronic Journal of Linear Algebra. A publication of the International Linear Algebra Society. Introduction and main results. Let lp n 1 p 1 be the linear space C n with the lp norm, kxkp = X j jxjjp 1=p
Linear-quadratic control problem with a linear term on semiinfinite ...
2003-12-18T23:59:59.000Z
Dec 15, 2003 ... We describe a complete solution of the linear-quadratic control prob- lem on a semiinfinite interval with the linear term in the objective func-.
Proceedings of the International Linear Collider Workshop
Proceedings of the International Linear Collider Workshop LCWS 2007 ILC 2007 Volume 1 Edited by Ariane Frey Sabine Riemann #12;Impressum Proceedings of the International Linear Collider Workshop LCWS
Ultrashort Pulse Propagation in the Linear Regime
Wang, Jieyu
2010-07-14T23:59:59.000Z
First, we investigate the Bouguer-Lambert-Beer (BLB) law as applied to the transmission of ultrashort pulses through water in the linear absorption regime. We present a linear theory for propagation of ultrashort laser ...
MANEUVER REGULATION, TRANSVERSE FEEDBACK LINEARIZATION, AND ZERO
Maggiore, Manfredi
MANEUVER REGULATION, TRANSVERSE FEEDBACK LINEARIZATION, AND ZERO DYNAMICS Chris Nielsen,1 Manfredi focus is on output maneuver regulation where stabilizing transverse dynamics is a key requirement. Keywords: Maneuver regulation, path following, feedback linearization, zero dynamics, non-square systems
High speed linear induction motor efficiency optimization
Johnson, Andrew P. (Andrew Peter)
2005-01-01T23:59:59.000Z
One of the reasons linear motors, a technology nearly a century old, have not been adopted for a large number of linear motion applications is that they have historically had poor efficiencies. This has restricted the ...
Duality for Mixed-Integer Linear Programs
2007-04-05T23:59:59.000Z
The theory of duality for linear programs is well-developed and has been successful ... methods for determining the effect of modifications to the input data on the ..... and the primal problem is bounded, since linear programming duality tells us ...
Linear Regression and Support Vector Regression
Shi, Qinfeng "Javen"
Linear Regression and Support Vector Regression Paul Paisitkriangkrai paulp@cs.adelaide.edu.au The University of Adelaide 18 August 2014 #12;Outlines · Regression overview · Linear regression · Support vector regression · Machine learning tools available #12;Regression Overview CLUSTERING CLASSIFICATION REGRESSION
Linear Accelerator | Advanced Photon Source
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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article)41clothThe Bonneville PowerTariff Pages default Sign InCenter (LMI-EFRC) Hotel & TravelLimiting FactorsProjectsLinear
Gusev, Guennady
Negative linear classical magnetoresistance in a corrugated two-dimensional electron gas N. M (Received 18 August 2004; published 20 December 2004) Large linear negative magnetoresistance (LNMR) was measured in a GaAs/AlxGa1-xAs two-dimensional electron system with nonplanar topography, caused by random
Resource-Efficient Generataion of Linear Cluster States by Linear Optics with postselection
Uskov, Dmitry B [Brescia University, Kentucky; Alsing, Paul [Air Force Research Laboratory; Fanto, Michael [Air Force Research Laboratory; Kaplan, Lev [Tulane University; Kim, R [University of Dayton Research Institute; Szep, Atilla [Air Force Research Laboratory; Smith IV, Amos M [ORNL
2015-01-01T23:59:59.000Z
We report on theoretical research in photonic cluster-state computing. Finding optimal schemes of generating non-classical photonic states is of critical importance for this field as physically implementable photon-photon entangling operations are currently limited to measurement-assisted stochastic transformations. A critical parameter for assessing the efficiency of such transformations is the success probability of a desired measurement outcome. At present there are several experimental groups that are capable of generating multi-photon cluster states carrying more than eight qubits. Separate photonic qubits or small clusters can be fused into a single cluster state by a probabilistic optical CZ gate conditioned on simultaneous detection of all photons with 1/9 success probability for each gate. This design mechanically follows the original theoretical scheme of cluster state generation proposed more than a decade ago by Raussendorf, Browne, and Briegel. The optimality of the destructive CZ gate in application to linear optical cluster state generation has not been analyzed previously. Our results reveal that this method is far from the optimal one. Employing numerical optimization we have identified that the maximal success probability of fusing n unentangled dual-rail optical qubits into a linear cluster state is equal to 1/2^n-1; an m-tuple of photonic Bell pair states, commonly generated via spontaneous parametric down-conversion, can be fused into a single cluster with the maximal success probability of 1/4^m-1.
Linear Programming Lower Bounds for Minimum Converter ...
generation algorithm for solving the linear relaxation of the most promising ... Keywords: Optical Networks, Wavelength Assignment, Integer Programming.
Symmetries in Linear and Integer Programs
Bödi, R
2009-01-01T23:59:59.000Z
The notion of symmetry is defined in the context of Linear and Integer Programming. Symmetric linear and integer programs are studied from a group theoretical viewpoint. We show that for any linear program there exists an optimal solution in the fixed point set of its symmetry group. Using this result, we develop an algorithm that allows for reducing the dimension of any linear program having a non-trivial group of symmetries.
Performance Prediction through Time Measurements Roman Iakymchuk
of predicting performance of linear algebra algorithms for small matrices. This approach is based on reducing linear algebra operations such as the BLAS subroutines. As the time measurements confirmed, the execution is built on top of two BLAS subroutines, with the separately measured one. The applicability
Varying-Coefficient Functional Linear Regression Models
Cardot, Hervé
Varying-Coefficient Functional Linear Regression Models Herv´e Cardot1 and Pascal Sarda2 1, the ability of such non linear functional approaches to produce competitive estimations. Short title : Varying monograph. We propose here another generalization of the functional linear regression model in which
Computational Reality XIII Non-linear regression
Berlin,Technische Universität
Computational Reality XIII Non-linear regression Inverse analysis II B. Emek Abali @ LKM - TU Berlin Abstract Linear regression to fit and determine parameters, shown in the last tutorial, is quite useful and widely implemented, however, there are material models where parameters are coupled non-linearly
Depolarization of backscattered linearly polarized light
Lacoste, David
Depolarization of backscattered linearly polarized light Luis Fernando Rojas-Ochoa Department of backscattered linearly polarized light with an extended photon dif- fusion formalism taking explicitly, the characteristic depolarization length for linearly polarized light, lp , is deduced. We investigate the dependence
MINIMIZING COMMUNICATION IN NUMERICAL LINEAR ALGEBRA*
California at Berkeley, University of
MINIMIZING COMMUNICATION IN NUMERICAL LINEAR ALGEBRA* GREY BALLARD , JAMES DEMMEL , OLGA HOLTZ, i.e., essentially all direct methods of linear al- gebra. The proof works for dense or sparse our lower bound technique to compositions of linear algebra operations (like computing powers
Batch-mode Supervised Learning Linear regression
Wehenkel, Louis
Batch-mode Supervised Learning Linear regression Applied inductive learning - Lecture 3 Louis (& Pierre Geurts)AIA... (1/19) #12;Batch-mode Supervised Learning Linear regression Batch-mode Supervised Learning Linear regression Least mean square error solution Regularization and algorithmics Residual
Linear Free Energy Relationships between Dissolution Rates and Molecular Modeling Energies, 2003. In Final Form: December 18, 2003 Bulk and surface energies are calculated for endmembers reported in the literature. The calculated energies also correlate with measured dissolution rates
Varshney, Kush R.
Low-dimensional statistics of measurements play an important role in detection problems, including those encountered in sensor networks. In this work, we focus on learning low-dimensional linear statistics of high-dimensional ...
NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS Numer. Linear Algebra Appl. 2005; 12:683
NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS Numer. Linear Algebra Appl. 2005; 12:683 Published Numerical Linear Algebra and its Applications The fourth workshop of the ERCIM Working Group on `Matrix Computations and Statistics' and the First International workshop on `Numerical Linear Algebra and its
ENGI 3423 Simple Linear Regression Page 12-01 Simple Linear Regression
George, Glyn
for dealing with non-linear regression are available in the course text, but are beyond the scopeENGI 3423 Simple Linear Regression Page 12-01 Simple Linear Regression Sometimes an experiment predict the value of Y for that value of x . The simple linear regression model is that the predicted
Robust Linearization of RF Amplifiers Using NonLinear Internal Model Control Method
Paris-Sud XI, Université de
Robust Linearization of RF Amplifiers Using NonLinear Internal Model Control Method Smail Bachir #1, the nonlinear Internal Model Control (IMC) method is introduced and applied to linearize high frequency Power to be controlled [8]. If the model is a perfect representation of the non linear system, the controller can
Optimal Linear Quadratic Regulator for Markovian Jump Linear Systems, in the
Baras, John S.
, in the last fifteen, the classical paradigms of optimal control for Markovian jump linear systems (see CostaOptimal Linear Quadratic Regulator for Markovian Jump Linear Systems, in the presence of one time] and in the design of controllers Chizeck [1986] of controllers for Markovian jump linear systems. More specifically
Kunkel, Peter
The linear quadratic optimal control problem for linear descriptor systems with variable coefficients Peter Kunkel 3 Volker Mehrmann y 17.01.97 Abstract We study linear quadratic optimal control, 93B11, 93B40 1 Introduction In this paper we study the linearÂquadratic optimal control problem
Xiang Zhou; Qingmin Zhang; Qian Liu; Zhenyu Zhang; Yayun Ding; Li Zhou; Jun Cao
2015-04-04T23:59:59.000Z
We report the measurements of the densities of linear alkylbenzene at three temperatures over 4 to 23 Celsius degree with pressures up to 10 MPa. The measurements have been analysed to yield the isobaric thermal expansion coefficients and, so far for the first time, isothermal compressibilities of linear alkylbenzene. Relevance of results for current generation (i.e. Daya Bay) and next generation (i.e. JUNO) large liquid scintillator neutrino detectors are discussed.
Time Displaced Entanglement and Non-Linear Quantum Evolution
T. C. Ralph
2005-10-06T23:59:59.000Z
We discuss time displaced entanglement, produced by taking one member of a Bell pair on a round trip at relativistic speeds, thus inducing a time-shift between the pair. We show that decoherence with respect to Bell measurements on the pair is predicted. We then study a teleportation protocol, using time displaced entanglement as its resource, in which a time-like loop is apparently formed. The result is non-unitary, non-linear evolution of the teleported state.
Multi-Stage Bunch Compressors for the International Linear Collider
Tenenbaum, Peter G.; Raubenheimer, Tor O.; Wolski, Andrzej
2005-01-01T23:59:59.000Z
FOR THE INTERNATIONAL LINEAR COLLIDER ? P. Tenenbaum † ,goals, the International Linear Collider (ILC) requires acompressors for the International Linear Collider. Each of
Non-Linear Seismic Soil Structure Interaction (SSI) Method for...
Office of Environmental Management (EM)
Non-Linear Seismic Soil Structure Interaction (SSI) Method for Developing Non-Linear Seismic SSI Analysis Techniques Non-Linear Seismic Soil Structure Interaction (SSI) Method for...
Automating approximate Bayesian computation by local linear regression
Thornton, Kevin R
2009-01-01T23:59:59.000Z
computation by local linear regression Kevin R Thorntonof ABC based on using a linear regression to approximate theimplements the local linear-regression approach to ABC. The
International Workshop on Linear Colliders 2010
None
2011-10-06T23:59:59.000Z
IWLC2010 International Workshop on Linear Colliders 2010ECFA-CLIC-ILC joint meeting: Monday 18 October - Friday 22 October 2010Venue: CERN and CICG (International Conference Centre Geneva, Switzerland) This year, the International Workshop on Linear Colliders organized by the European Committee for Future Accelerators (ECFA) will study the physics, detectors and accelerator complex of a linear collider covering both CLIC and ILC options.Contact Workshop Secretariat IWLC2010 is hosted by CERN
JLab Supports International Linear Collider Cavity Development...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Supports International Linear Collider Cavity Development Work NEWPORT NEWS, Va. Feb. 12, 2008 - It's not often that major-league baseball and nuclear physics get to share the...
LED Replacements for Linear Fluorescent Lamps Webcast
Broader source: Energy.gov [DOE]
In this June 20, 2011 webcast on LED products marketed as replacements for linear fluorescent lamps, Jason Tuenge of the Pacific Northwest National Laboratory (PNNL) discussed current Lighting...
GENERALIZED DUAL FACE ALGORITHM FOR LINEAR ...
2014-10-02T23:59:59.000Z
1991 Mathematics Subject Classification. Primary 90C05; Secondary 65K05. Key words and phrases. linear programming, dual level face, dual optimal face .
Linear conic optimization for nonlinear optimal control
2014-07-07T23:59:59.000Z
Jul 7, 2014 ... This linear transport equation is classical in fluid mechanics, statistical ... define a relaxed optimal control problem as an LP in the cone of non-.
Optimization Online - Linear, Cone and Semidefinite Programming ...
Strong duality in conic linear programming: facial reduction and extended duals ... A new semide nite programming relaxation for the quadratic assignment ...
Optimization Online - Equivalence of an Approximate Linear ...
Alejandro Toriello
2013-02-07T23:59:59.000Z
Feb 7, 2013 ... Equivalence of an Approximate Linear Programming Bound with the Held-Karp Bound for the Traveling Salesman Problem. Alejandro Toriello ...
Ultra-high vacuum photoelectron linear accelerator
Yu, David U.L.; Luo, Yan
2013-07-16T23:59:59.000Z
An rf linear accelerator for producing an electron beam. The outer wall of the rf cavity of said linear accelerator being perforated to allow gas inside said rf cavity to flow to a pressure chamber surrounding said rf cavity and having means of ultra high vacuum pumping of the cathode of said rf linear accelerator. Said rf linear accelerator is used to accelerate polarized or unpolarized electrons produced by a photocathode, or to accelerate thermally heated electrons produced by a thermionic cathode, or to accelerate rf heated field emission electrons produced by a field emission cathode.
Siting the International Linear Collider at Hanford
Kouzes, Richard T.; Asner, David M.; Brodzinski, Ronald L.; Fast, James E.; Miley, Harry S.
2012-03-15T23:59:59.000Z
Review of the proposed International Linear Collider, applications in high energy physics, and evaluation of the Hanford Site as a possible location for siting the facilityl.
Siting the International Linear Collider at Hanford
Kouzes, Richard T.; Asner, David M.; Brodzinski, Ronald L.; Fast, James E.; Miley, Harry S.
2012-05-01T23:59:59.000Z
Review of the proposed International Linear Collider, applications in high energy physics, and evaluation of the Hanford Site as a possible location for siting the facility.
The Equivalence of Linear Programs and Zero-Sum Games
2012-01-15T23:59:59.000Z
In 1951, Dantzig showed the equivalence of linear programming problems and ... This note concerns the equivalence between linear programming (LP) ...
W. B. Vasantha Kandasamy; Florentin Smarandache
2009-02-01T23:59:59.000Z
This book is a continuation of the book n-linear algebra of type I and its applications. Most of the properties that could not be derived or defined for n-linear algebra of type I is made possible in this new structure: n-linear algebra of type II which is introduced in this book. In case of n-linear algebra of type II we are in a position to define linear functionals which is one of the marked difference between the n-vector spaces of type I and II. However all the applications mentioned in n-linear algebras of type I can be appropriately extended to n-linear algebras of type II. Another use of n-linear algebra (n-vector spaces) of type II is that when this structure is used in coding theory we can have different types of codes built over different finite fields whereas this is not possible in the case of n-vector spaces of type I. Finally in the case of n-vector spaces of type II, we can obtain n-eigen values from distinct fields; hence, the n-characteristic polynomials formed in them are in distinct different fields. An attractive feature of this book is that the authors have suggested 120 problems for the reader to pursue in order to understand this new notion. This book has three chapters. In the first chapter the notion of n-vector spaces of type II are introduced. This chapter gives over 50 theorems. Chapter two introduces the notion of n-inner product vector spaces of type II, n-bilinear forms and n-linear functionals. The final chapter suggests over a hundred problems. It is important that the reader is well-versed not only with linear algebra but also n-linear algebra of type I.
NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS Numer. Linear Algebra Appl. 2011; 18:961980
De Sterck, Hans
NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS Numer. Linear Algebra Appl. 2011; 18:961980 Published aggregation method of [1], and the Markov chain algebraic multigrid (MCAMG) method of [3] using the OTF
Linear Algebra Notes David A. SANTOS
California at Santa Cruz, University of
Linear Algebra Notes David A. SANTOS dsantos@ccp.edu January 2, 2010 REVISION #12;ii Contents . . . . . . . . . . . . . . . . . . 15 2 Matrices and Matrix Operations 18 2.1 The Algebra of Matrices . . . . . . . . . . . 18 2.3 Diagonalisability . . . . . . . . . . . . . . 143 7.4 Theorem of Cayley and Hamilton . . . . . 147 8 Linear Algebra
Blood Management Using Approximate Linear Programming
Shenoy, Prashant
Blood Management Using Approximate Linear Programming Marek Petrik and Shlomo Zilberstein January 13th, 2009 Marek Petrik and Shlomo Zilberstein () Blood Management Using Approximate Linear ProgrammingJanuary 13th, 2009 1 / 36 #12;Blood Inventory Management Problem Regional blood banks: Aggregate
Voltage regulation in linear induction accelerators
Parsons, William M. (Santa Fe, NM)
1992-01-01T23:59:59.000Z
Improvement in voltage regulation in a Linear Induction Accelerator wherein a varistor, such as a metal oxide varistor, is placed in parallel with the beam accelerating cavity and the magnetic core. The non-linear properties of the varistor result in a more stable voltage across the beam accelerating cavity than with a conventional compensating resistance.
Voltage regulation in linear induction accelerators
Parsons, W.M.
1992-12-29T23:59:59.000Z
Improvement in voltage regulation in a linear induction accelerator wherein a varistor, such as a metal oxide varistor, is placed in parallel with the beam accelerating cavity and the magnetic core is disclosed. The non-linear properties of the varistor result in a more stable voltage across the beam accelerating cavity than with a conventional compensating resistance. 4 figs.
Best Linear Unbiased Estimate Motivation for BLUE
Fowler, Mark
1 Chapter 6 Best Linear Unbiased Estimate (BLUE) #12;2 Motivation for BLUE Except for Linear Model to a sub-optimal estimate BLUE is one such sub-optimal estimate Idea for BLUE: 1. Restrict estimate) Advantage of BLUE:Needs only 1st and 2nd moments of PDF Mean & Covariance Disadvantages of BLUE: 1. Sub
Thvenin's Theorem Linear two-terminal circuit
Kozick, Richard J.
Thévenin's Theorem Linear two-terminal circuit can be replaced by an equivalent circuit composed at terminals with allResistance at terminals with all independent circuit sources set to zero #12;Norton's Theorem Linear two-terminal circuit can be replaced by an equivalentbe replaced by an equivalent circuit
Soft materials for linear electromechanical energy conversion
Antal Jakli; Nandor Eber
2014-07-29T23:59:59.000Z
We briefly review the literature of linear electromechanical effects of soft materials, especially in synthetic and biological polymers and liquid crystals (LCs). First we describe results on direct and converse piezoelectricity, and then we discuss a linear coupling between bending and electric polarization, which maybe called bending piezoelectricity, or flexoelectricity.
Neal, R B
1956-01-01T23:59:59.000Z
The Stanford Mark III linear accelerator and speculations concerning the multi-Bev applications of electron linear accelerators
Assumptions that imply quantum dynamics is linear
Thomas F. Jordan
2006-01-26T23:59:59.000Z
A basic linearity of quantum dynamics, that density matrices are mapped linearly to density matrices, is proved very simply for a system that does not interact with anything else. It is assumed that at each time the physical quantities and states are described by the usual linear structures of quantum mechanics. Beyond that, the proof assumes only that the dynamics does not depend on anything outside the system but must allow the system to be described as part of a larger system. The basic linearity is linked with previously established results to complete a simple derivation of the linear Schrodinger equation. For this it is assumed that density matrices are mapped one-to-one onto density matrices. An alternative is to assume that pure states are mapped one-to-one onto pure states and that entropy does not decrease.
Linear Transformations In this Chapter, we will define the notion of a linear transformation between
Carrell, Jim
Chapter 6 Linear Transformations In this Chapter, we will define the notion of a linear transformation between two vector spaces V and W which are defined over the same field and prove the most basic transformations is equivalent to matrix theory. We will also study the geometric properties of linear
Optimal Measurement and Control in Quantum Dynamical Systems.
Belavkin, Viacheslav P.
Optimal Measurement and Control in Quantum Dynamical Systems. V P Belavkin Institute of Physics-dimensional linear Markovian dynamical system with a quantum linear transmission line is studied. The optimal quantum multi-stage decision rule consisting of the classical linear optimal control strategy and quantum
Results and Comparison from the SAM Linear Fresnel Technology Performance Model: Preprint
Wagner, M. J.
2012-04-01T23:59:59.000Z
This paper presents the new Linear Fresnel technology performance model in NREL's System Advisor Model. The model predicts the financial and technical performance of direct-steam-generation Linear Fresnel power plants, and can be used to analyze a range of system configurations. This paper presents a brief discussion of the model formulation and motivation, and provides extensive discussion of the model performance and financial results. The Linear Fresnel technology is also compared to other concentrating solar power technologies in both qualitative and quantitative measures. The Linear Fresnel model - developed in conjunction with the Electric Power Research Institute - provides users with the ability to model a variety of solar field layouts, fossil backup configurations, thermal receiver designs, and steam generation conditions. This flexibility aims to encompass current market solutions for the DSG Linear Fresnel technology, which is seeing increasing exposure in fossil plant augmentation and stand-alone power generation applications.
No-signaling Quantum Key Distribution: Solution by Linear Programming
Won-Young Hwang; Joonwoo Bae; Nathan Killoran
2013-01-15T23:59:59.000Z
We outline a straightforward approach for obtaining a secret key rate using only no-signaling constraints and linear programming. Assuming an individual attack, we consider all possible joint probabilities. Initially, we study only the case where Eve has binary outcomes, and we impose constraints due to the no-signaling principle and given measurement outcomes. Within the remaining space of joint probabilities, by using linear programming, we get bound on the probability of Eve correctly guessing Bob's bit. We then make use of an inequality that relates this guessing probability to the mutual information between Bob and a more general Eve, who is not binary-restricted. Putting our computed bound together with the Csisz\\'ar-K\\"orner formula, we obtain a positive key generation rate. The optimal value of this rate agrees with known results, but was calculated in a more straightforward way, offering the potential of generalization to different scenarios.
Coherent Quantum Filtering for Physically Realizable Linear Quantum Plants
Igor G. Vladimirov; Ian R. Petersen
2013-01-14T23:59:59.000Z
The paper is concerned with a problem of coherent (measurement-free) filtering for physically realizable (PR) linear quantum plants. The state variables of such systems satisfy canonical commutation relations and are governed by linear quantum stochastic differential equations, dynamically equivalent to those of an open quantum harmonic oscillator. The problem is to design another PR quantum system, connected unilaterally to the output of the plant and playing the role of a quantum filter, so as to minimize a mean square discrepancy between the dynamic variables of the plant and the output of the filter. This coherent quantum filtering (CQF) formulation is a simplified feedback-free version of the coherent quantum LQG control problem which remains open despite recent studies. The CQF problem is transformed into a constrained covariance control problem which is treated by using the Frechet differentiation of an appropriate Lagrange function with respect to the matrices of the filter.
Kissock, J. K.; Haberl, J. S.; Claridge, D. E.
2002-11-01T23:59:59.000Z
This report summarizes the results of ASHRAE Research Project 1050: Development of a Toolkit for Calculating Linear, Change-Point Linear and Multiple Linear Inverse Building Energy Analysis Models. The Inverse Modeling Toolkit (WIT) is a FORTRAN 90...
DistributionFree Multivariate Process Control Based On LogLinear Modeling School of Statistics
Qiu, Peihua
DistributionÂFree Multivariate Process Control Based On LogÂLinear Modeling Peihua Qiu School the process measurement is multivariate. In the literature, most existing multivariate SPC procedures assume that the inÂcontrol distribution of the multivariate process measurement is known and it is a Gaussian
IRREGULARITIES IN X(Y) FROM Y(X) IN LINEAR CALIBRATION
Ramirez, Donald E.
IRREGULARITIES IN X(Y) FROM Y(X) IN LINEAR CALIBRATION D. R. JENSEN AND D. E. RAMIREZ Abstract. Let X be an input measurement and Y the output reading of a calibrated instrument, with Y (X) as the calibration curve. Solving X(Y ) projects an instrumental reading back onto the scale of measurements
LED Linear Lamps and Troffer Lighting
Broader source: Energy.gov [DOE]
The CALiPER program performed a series of investigations on linear LED lamps. Each report in the series covers the performance of up to 31 linear LED lamps, which were purchased in late 2012 or 2013. The first report focuses on bare lamp performance of LED T8 replacement lamps and subsequent reports examine performance in various troffers, as well as cost-effectiveness. There is also a concise guidance document that describes the findings of the Series 21 studies and provides practical advice to manufacturers, specifiers, and consumers (Report 21.4: Summary of Linear (T8) LED Lamp Testing , 5 pages, June 2014).
Optically isolated signal coupler with linear response
Kronberg, James W. (Aiken, SC)
1994-01-01T23:59:59.000Z
An optocoupler for isolating electrical signals that translates an electrical input signal linearly to an electrical output signal. The optocoupler comprises a light emitter, a light receiver, and a light transmitting medium. The light emitter, preferably a blue, silicon carbide LED, is of the type that provides linear, electro-optical conversion of electrical signals within a narrow wavelength range. Correspondingly, the light receiver, which converts light signals to electrical signals and is preferably a cadmium sulfide photoconductor, is linearly responsive to light signals within substantially the same wavelength range as the blue LED.
Tower systems for Linearly repetitive Delone sets
José Aliste-Prieto; Daniel Coronel
2010-03-22T23:59:59.000Z
In this paper we study linearly repetitive Delone sets and prove, following the work of Bellissard, Benedetti and Gambaudo, that the hull of a linearly repetitive Delone set admits a properly nested sequence of box decompositions (tower system) with strictly positive and uniformly bounded (in size and norm) transition matrices. This generalizes a result of Durand for linearly recurrent symbolic systems. Furthermore, we apply this result to give a new proof of a classic estimation of Lagarias and Pleasants on the rate of convergence of patch-frequencies.
Linearly polarized remote-edge luminescence in GaSe nanoslabs
Tang, Yanhao; Mandal, Krishna C; McGuire, John A; Lai, Chih-Wei
2015-01-01T23:59:59.000Z
We report highly linearly polarized remote luminescence that emerges at the cleaved edges of nanoscale gallium selenide slabs tens of micrometers away from the optical excitation spot. The remote-edge luminescence (REL) measured in the reflection geometry has a degree of linear polarization above 0.90, with polarization orientation pointing toward the photoexcitation spot. The REL is dominated by an index-guided optical mode that is linearly polarized along the crystalline $c$-axis. This luminescence is from out-of-plane dipoles that are converted from in-plane dipoles through a spin-flip process at the excitation spot.
Quantum Shock Waves - the case for non-linear effects in dynamics of electronic liquids
Eldad Bettelheim; Alexander G. Abanov; Paul Wiegmann
2006-06-29T23:59:59.000Z
Using the Calogero model as an example, we show that the transport in interacting non-dissipative electronic systems is essentially non-linear. Non-linear effects are due to the curvature of the electronic spectrum near the Fermi energy. As is typical for non-linear systems, propagating wave packets are unstable. At finite time shock wave singularities develop, the wave packet collapses, and oscillatory features arise. They evolve into regularly structured localized pulses carrying a fractionally quantized charge - {\\it soliton trains}. We briefly discuss perspectives of observation of Quantum Shock Waves in edge states of Fractional Quantum Hall Effect and a direct measurement of the fractional charge.
Non-linear scaling of performance appraisal dimensions: application of the ProMES methodology
Hedley, Amie Lynn
1990-01-01T23:59:59.000Z
accurate performance appraisals. The purpose of this research was to examine the performance appraisal results produced by a new measurement method called ProMES. This method accounts for differing importance of the various performance dimensions... and for non-linear relations between a given dimension and overall performance. Several other methods that fail to account for non-linearities and/or differential importance weights were compared with the ProMES system. Performance appraisal data from 123...
Apkarian, V. Ara
Interrogation and control of condensed phase chemical dynamics with linearly chirped pulses: I2, Irvine, California 92717 Received 19 October 1995; accepted 30 January 1996 The effect of linearly pulse chirp, is a measure of the controllability of the evolving dynamics. In the particular case
GROUP SPARSITY VIA LINEAR-TIME PROJECTION
2008-08-01T23:59:59.000Z
Jul 31, 2008 ... linear regression model subject to a bound on the l1-norm of the coefficients; .... this strategy scales poorly with the number of non-zero groups.
TIGHTER LINEAR AND SEMIDEFINITE RELAXATIONS FOR MAX ...
7 by a detailed analysis of the new relaxations. If positive ... Key words. linear relaxation, semide nite relaxation, lift and project, cut polytope, stable set. polytope ..... su ces to consider the circuit inequalities for chordless circuits [7]. Therefore ...
Photon emission within the linear sigma model
F. Wunderlich; B. Kampfer
2014-12-22T23:59:59.000Z
Soft-photon emission rates are calculated within the linear sigma model. The investigation is aimed at answering the question to which extent the emissivities map out the phase structure of this particular effective model of strongly interacting matter.
Linear Thermodynamics of Rodlike DNA Filtration
Li, Zirui
Linear thermodynamics transportation theory is employed to study filtration of rodlike DNA molecules. Using the repeated nanoarray consisting of alternate deep and shallow regions, it is demonstrated that the complex ...
QPOs: Einstein's gravity non-linear resonances
Paola Rebusco; Marek A. Abramowicz
2006-01-30T23:59:59.000Z
There is strong evidence that the observed kHz Quasi Periodic Oscillations (QPOs) in the X-ray flux of neutron star and black hole sources in LMXRBs are linked to Einstein's General Relativity. Abramowicz&Klu\\'zniak (2001) suggested a non-linear resonance model to explain the QPOs origin: here we summarize their idea and the development of a mathematical toy-model which begins to throw light on the nature of Einstein's gravity non-linear oscillations.
Photon Linear Collider Gamma-Gamma Summary
Gronberg, J
2012-02-27T23:59:59.000Z
High energy photon - photon collisions can be achieved by adding high average power short-pulse lasers to the Linear Collider, enabling an expanded physics program for the facility. The technology required to realize a photon linear collider continues to mature. Compton back-scattering technology is being developed around the world for low energy light source applications and high average power lasers are being developed for Inertial Confinement Fusion.
Lectures on Numerical Linear Algebra Yunkai Zhou
Zhou, Yunkai
University Dallas, Texas 75075 yzhou@smu.edu Spring, 2013 #12;Acknowledgements The lecture slides benefit. Y. Zhou Math-6316/CS-7366, SMU 2/210 #12;Basic Linear Algebra Spaces: Rn , Cn , Rn×n , Cn×n , Rm. Zhou Math-6316/CS-7366, SMU 3/210 #12;Basic Linear Algebra Spaces: Rn , Cn , Rn×n , Cn×n , Rm×n , Cm
Lectures on Numerical Linear Algebra Yunkai Zhou
Zhou, Yunkai
University Dallas, Texas 75075 yzhou@smu.edu Spring, 2012 #12;Acknowledgements The lecture slides benefit. Y. Zhou Math-6316/CS-7366, SMU 2/213 #12;Basic Linear Algebra Spaces: Rn , Cn , Rn×n , Cn×n , Rm. Zhou Math-6316/CS-7366, SMU 3/213 #12;Basic Linear Algebra Spaces: Rn , Cn , Rn×n , Cn×n , Rm×n , Cm
Lectures on Linear Algebra over Division Ring
Aleks Kleyn
2014-10-11T23:59:59.000Z
In this book i treat linear algebra over division ring. A system of linear equations over a division ring has properties similar to properties of a system of linear equations over a field. However, noncommutativity of a product creates a new picture. Matrices allow two products linked by transpose. Biring is algebra which defines on the set two correlated structures of the ring. As in the commutative case, solutions of a system of linear equations build up right or left vector space depending on type of system. We study vector spaces together with the system of linear equations because their properties have a close relationship. As in a commutative case, the group of automorphisms of a vector space has a single transitive representation on a frame manifold. This gives us an opportunity to introduce passive and active representations. Studying a vector space over a division ring uncovers new details in the relationship between passive and active transformations, makes this picture clearer. Considering of twin representations of division ring in Abelian group leads to the concept of D vector space and their linear map. Based on polyadditive map I considered definition of tensor product of rings and tensor product of D vector spaces.
A New Algorithm for Linear Programming
Dhananjay P. Mehendale
2015-03-28T23:59:59.000Z
In this paper we propose two types of new algorithms for linear programming. The first type of these new algorithms uses algebraic methods while the second type of these new algorithms uses geometric methods. The first type of algorithms is based on treating the objective function as a parameter. In this method, we form a matrix using coefficients in the system of equations consisting objective equation and equations obtained from inequalities defining constraint by introducing slack/surplus variables. We obtain reduced row echelon form for this matrix containing only one variable, namely, the objective function itself as an unknown parameter. We analyse this matrix in the reduced row echelon form and develop a clear cut method to find the optimal solution for the problem at hand, if and when it exists. We see that the entire optimization process can be developed through the proper analysis of the said matrix in the reduced row echelon form. The second type of algorithms that we propose for linear programming are inspired by geometrical considerations. All these algorithms pursue common aim of approaching closer and closer to centroid or some centrally located interior point for speeding up the process of reaching an optimal solution! We then proceed to show that the algebraic method developed above for linear programming naturally extends to non-linear and integer programming problems. For non-linear and integer programming problems we use the technique of Grobner bases and the methods of solving linear Diophantine equations respectively.
Rudolph, J
2011-01-01T23:59:59.000Z
The linear accelerator ELBE delivers high-brightness electron bunches to multiple user stations, including two IR-FEL oscillators [1], [2]. In the framework of an upgrade program the current thermionic injector is being replaced by a SRF-photoinjector [3], [4]. The SRF injector promises higher beam quality, especially required for future experiments with high power laser radiation. During the commissioning phase, the SRF-injector was running in parallel to the thermionic gun. After installation of a injection beamline (dogleg), beam from the SRF-injector can now be injected into the ELBE linac. Detailed characterization of the electron beam quality delivered by the new electron injector includes vertical slice emittance measurements in addition to measurements of projected emittance values. This report gives an overview of the status of the project and summarizes first measurement results as well as results of simulations performed with measurement settings.
Piecewise Linear Instrumental Variable Estimation of Causal Influence Richard Scheines
Spirtes, Peter
studies show that when the causal influence of X on Y is non-linear, the piecewise linear linear IV-estimator. In the final section, we describe an experiment comparing regular regression, linearPiecewise Linear Instrumental Variable Estimation of Causal Influence Richard Scheines Dept
Accurate and precise characterization of linear optical interferometers
Ish Dhand; Abdullah Khalid; He Lu; Barry C. Sanders
2015-08-02T23:59:59.000Z
We combine single- and two-photon interference procedures for characterizing any multi-port linear optical interferometer accurately and precisely. Accuracy is achieved by estimating and correcting systematic errors that arise due to spatiotemporal and polarization mode mismatch. Enhanced precision is attained by curve fitting to measured quantities based on a Poissonian shot noise assumption, and we employ bootstrapping statistics to quantify the resultant degree of precision. A scattershot approach is devised to effect a reduction in the experimental time required to characterize the interferometer.
Optomechanical response of a non-linear mechanical resonator
Shevchuk, Olga; Steele, Gary A; Blanter, Ya M
2015-01-01T23:59:59.000Z
We investigate theoretically in detail the non-linear effects in the response of an optical/microwave cavity coupled to a Duffing mechanical resonator. The cavity is driven by a laser at a red or blue mechanical subband, and a probe laser measures the reflection close to the cavity resonance. Under these conditions, we find that the cavity exhibits optomechanically induced reflection (OMIR) or absorption (OMIA) and investigate the optomechanical response in the limit of non-linear driving of the mechanics. Similar to linear mechanical drive, an overcoupled cavity the red-sideband drive may lead to both OMIA and OMIR depending on the strength of the drive, whereas the blue-sideband drive only leads to OMIR. The dynamics of the phase of the mechanical resonator leads to the difference between the shapes of the response of the cavity and the amplitude response of the driven Duffing oscillator, for example, at weak red-sideband drive the OMIA dip has no inflection point. We also verify that mechanical non-lineari...
Prospects for Precision Higgs Physics at Linear Colliders
Frank Simon
2012-11-30T23:59:59.000Z
A linear e+e- collider provides excellent possibilities for precision measurements of the properties of the Higgs boson. At energies close to the Z-Higgs threshold, the Higgs boson can be studied in recoil against a Z boson, to obtain not only a precision mass measurement but also direct measurements of the branching ratios for most decay modes, including possible decay to invisible species. At higher energies, the Higgs boson coupling to top quarks and the Higgs boson self-coupling can also be measured. At energies approaching 1 TeV and above, the rising cross section for Higgs production in WW fusion allows the measurement of very small branching ratios, including the branching ratio to muon pairs. These experiments make it possible to determine the complete profile of the Higgs boson in a model-independent way. The prospects for these measurements are summarized, based on the results of detailed simulation studies performed within the frameworks of the CLIC conceptual design report and the ILC technical design report.
AN OPTIMIZED SUPERFERRIC WIGGLER DESIGN FOR THE INTERNATIONAL LINEAR COLLIDER
AN OPTIMIZED SUPERFERRIC WIGGLER DESIGN FOR THE INTERNATIONAL LINEAR COLLIDER DAMPING RINGS Urban ALL RIGHTS RESERVED #12;AN OPTIMIZED SUPERFERRIC WIGGLER DESIGN FOR THE INTERNATIONAL LINEAR Linear Collider (ILC) damping rings. Results from optimizations of the parameters of this wiggler
AN OPTIMIZED SUPERFERRIC WIGGLER DESIGN FOR THE INTERNATIONAL LINEAR COLLIDER
AN OPTIMIZED SUPERFERRIC WIGGLER DESIGN FOR THE INTERNATIONAL LINEAR COLLIDER DAMPING RINGS Urban ALL RIGHTS RESERVED #12; AN OPTIMIZED SUPERFERRIC WIGGLER DESIGN FOR THE INTERNATIONAL LINEAR Linear Collider (ILC) damping rings. Results from optimizations of the parameters of this wiggler
Is there a use for linear logic? Philip Wadler
Wadler, Philip
Is there a use for linear logic Past attempts to apply Girard's linear logicihavemplemented Wadler's system [Wa* *k90 ].) either had, Wadler), but not both. Thisguage that corresponds closely t* *o linear logic; it is a paper defines
Linear and Non-linear Response of Lithographically Defined Plasmonic Nanoantennas
Schraml, K; Bartl, J; Glashagen, G; Regler, A; Finley, J J
2015-01-01T23:59:59.000Z
We present numerical studies, nano-fabrication and optical characterization of bowtie nanoantennas demonstrating their superior performance with respect to the electric field enhancement as compared to other Au nanoparticle shapes. For optimized parameters, we found mean intensity enhancement factors >2300x in the feed-gap of the antenna, decreasing to 1300x when introducing a 5nm titanium adhesion layer. Using electron beam lithography we fabricated gold bowties on various substrates with feed-gaps and tip radii as small as 10nm. In polarization resolved measurement we experimentally observed a blue shift of the surface plasmon resonance from 1.72eV to 1.35eV combined with a strong modification of the electric field enhancement in the feed-gap. Under excitation with a 100fs pulsed laser source, we observed non-linear light emission arising from two-photon photoluminescence and second harmonic generation from the gold. The bowtie nanoantenna shows a high potential for outstanding conversion efficiencies and t...
6 June 2003 M. Oreglia 1 Linear Collider prehistory
and Universities · LC Resources Towards an International Linear Collider: Mark Oreglia The University of Chicago and make choices and take political actions · Organizations: International Linear Collider Steering
EXTENSIONS OF GENERALIZED LINEAR MODELING APPROACH TO STOCHASTIC WEATHER GENERATORS
Katz, Richard
weather) -- Software R open source statistical programming language: Function glm "Family;(2) Generalized Linear Models Statistical Framework -- Multiple Regression Analysis (Linear model or LM) Response
A LINEAR TIME ALGORITHM FOR THE KOOPMANS-BECKMANN ...
2011-11-24T23:59:59.000Z
said to be linearizable if there exists an instance of the linear assignment problem (LAP) .... quadratic programming formulation to a integer linear programming ...
A polynomial algorithm for linear optimization which is strongly ...
2015-01-31T23:59:59.000Z
In this paper we present a new polynomial algorithm for linear programming. ... linear optimization problems having 0-1 optimal solutions (e.g., the assignment.
Knot Undulator to Generate Linearly Polarized Photons with Low...
Office of Scientific and Technical Information (OSTI)
Linearly Polarized Photons with Low on-Axis Power Density Heat load on beamline optics is a serious problem to generate pure linearly polarized photons in the third...
Non-linear mechanical response of the Red Blood Cell
Young-Zoon Yoon; Jurij Kotar; Gilwon Yoon; Pietro Cicuta
2007-10-17T23:59:59.000Z
We measure the dynamical mechanical properties of human red blood cells. Single cell response is measured with optical tweezers. We investigate both the stress relaxation following a fast deformation, and the effect of varying the strain rate. We find a power law decay of the stress as a function of time, down to a plateau stress, and a power law increase of the cell's elasticity as a function of the strain rate. Interestingly, the exponents of these quantities violate the linear superposition principle, indicating a nonlinear response. We propose that this is due to breaking of a fraction of the crosslinks during the deformation process. The Soft Glassy Rheology Model accounts for the relation between the exponents we observe experimentally. This picture is consistent with recent models of bond remodeling in the red blood cell's molecular structure. Our results imply that the blood cell's mechanical behavior depends critically on the deformation process.
A Linear Circuit Model For Social Influence Analysis
Xiang, Biao; Liu, Qi; Xiong, Hui
2012-01-01T23:59:59.000Z
Understanding the behaviors of information propagation is essential for the effective exploitation of social influence in social networks. However, few existing influence models are both tractable and efficient for describing the information propagation process and quantitatively measuring social influence. To this end, in this paper, we develop a linear social influence model, named Circuit due to its close relation to the circuit network. Based on the predefined four axioms of social influence, we first demonstrate that our model can efficiently measure the influence strength between any pair of nodes. Along this line, an upper bound of the node(s)' influence is identified for potential use, e.g., reducing the search space. Furthermore, we provide the physical implication of the Circuit model and also a deep analysis of its relationships with the existing methods, such as PageRank. Then, we propose that the Circuit model provides a natural solution to the problems of computing each single node's authority a...
Ultrafast Long-Distance Quantum Communication with Static Linear Optics
Fabian Ewert; Marcel Bergmann; Peter van Loock
2015-03-23T23:59:59.000Z
We propose a projection measurement onto encoded Bell states with a static network of linear optical elements. By increasing the size of the quantum error correction code, both Bell measurement efficiency and photon-loss tolerance can be made arbitrarily high at the same time. As a main application, we show that all-optical quantum communication over large distances with communication rates similar to those of classical communication is possible solely based on local state teleportations using optical sources of encoded Bell states, fixed arrays of beam splitters, and photon detectors discriminating up to two photons. As another application, generalizing state teleportation to gate teleportation for quantum computation, we find that in order to achieve universality the intrinsic loss tolerance must be sacrificed and a minimal amount of feedforward has to be added.
Automated control of linear constricted plasma source array
Anders, Andre (Albany, CA); Maschwitz, Peter A. (Martinsville, VA)
2000-01-01T23:59:59.000Z
An apparatus and method for controlling an array of constricted glow discharge chambers are disclosed. More particularly a linear array of constricted glow plasma sources whose polarity and geometry are set so that the contamination and energy of the ions discharged from the sources are minimized. The several sources can be mounted in parallel and in series to provide a sustained ultra low source of ions in a plasma with contamination below practical detection limits. The quality of film along deposition "tracks" opposite the plasma sources can be measured and compared to desired absolute or relative values by optical and/or electrical sensors. Plasma quality can then be adjusted by adjusting the power current values, gas feed pressure/flow, gas mixtures or a combination of some or all of these to improve the match between the measured values and the desired values.
Dual-range linearized transimpedance amplifier system
Wessendorf, Kurt O. (Albuquerque, NM)
2010-11-02T23:59:59.000Z
A transimpedance amplifier system is disclosed which simultaneously generates a low-gain output signal and a high-gain output signal from an input current signal using a single transimpedance amplifier having two different feedback loops with different amplification factors to generate two different output voltage signals. One of the feedback loops includes a resistor, and the other feedback loop includes another resistor in series with one or more diodes. The transimpedance amplifier system includes a signal linearizer to linearize one or both of the low- and high-gain output signals by scaling and adding the two output voltage signals from the transimpedance amplifier. The signal linearizer can be formed either as an analog device using one or two summing amplifiers, or alternately can be formed as a digital device using two analog-to-digital converters and a digital signal processor (e.g. a microprocessor or a computer).
Test facilities for future linear colliders
Ruth, R.D.
1995-12-01T23:59:59.000Z
During the past several years there has been a tremendous amount of progress on Linear Collider technology world wide. This research has led to the construction of the test facilities described in this report. Some of the facilities will be complete as early as the end of 1996, while others will be finishing up around the end 1997. Even now there are extensive tests ongoing for the enabling technologies for all of the test facilities. At the same time the Linear Collider designs are quite mature now and the SLC is providing the key experience base that can only come from a working collider. All this taken together indicates that the technology and accelerator physics will be ready for a future Linear Collider project to begin in the last half of the 1990s.
Linear and NonLinear Estimation Methods Applied to the Hemodynamic model
Schaal, Stefan
Linear and NonLinear Estimation Methods Applied to the Hemodynamic model Evangelos A. Theodorou s that controls the blood inflow. The total balloon model can be defined by the 4 differential equations the hemodynamic process of the balloon model. These equations consist of a set of deterministic highly non
NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS Numer. Linear Algebra Appl. 2008; 15:115139
De Sterck, Hans
NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS Numer. Linear Algebra Appl. 2008; 15:115139 Published and Ulrike Meier Yang2,, 1Department of Applied Mathematics, University of Waterloo, Waterloo, Ont., Canada N2L 3G1 2Center for Applied Scientific Computing, Lawrence Livermore National Laboratory, P.O. Box
1D Regression ... estimates of the linear regression coefficients are relevant to the linear
Olive, David
Chapter 12 1D Regression ... estimates of the linear regression coefficients are relevant and look for a functional form for g(·). Brillinger (1983, p. 98) Regression is the study. The scalar Y is a random variable and x is a random vector. A special case of regression is multiple linear
1D Regression ... estimates of the linear regression coefficients are relevant to the linear
Olive, David
Chapter 15 1D Regression ... estimates of the linear regression coefficients are relevant and look for a functional form for g(·). Brillinger (1983, p. 98) Regression is the study. The scalar Y is a random variable and x is a random vector. A special case of regression is multiple linear
Linear Stability Analysis of Dynamical Quadratic Gravity
Dimitry Ayzenberg; Kent Yagi; Nicolas Yunes
2014-03-18T23:59:59.000Z
We perform a linear stability analysis of dynamical, quadratic gravity in the high-frequency, geometric optics approximation. This analysis is based on a study of gravitational and scalar modes propagating on spherically-symmetric and axially-symmetric, vacuum solutions of the theory. We find dispersion relations that do no lead to exponential growth of the propagating modes, suggesting the theory is linearly stable on these backgrounds. The modes are found to propagate at subluminal and superluminal speeds, depending on the propagating modes' direction relative to the background geometry, just as in dynamical Chern-Simons gravity.
Limitations of controlling oscillators via linear augmentation
Rajat Karnatak
2015-02-15T23:59:59.000Z
In this paper, we will have a look at some examples where linear augmentation is used to control oscillatory systems towards their stationary solutions. The simplicity of linear augmentation is a big positive feature of this scheme but at the same time, questions related to the general applicability of this procedure need to be addressed. This work attempts to demonstrate some control instances where this scheme fails to stabilize the required stationary solutions. Examples from conservative as well as dissipative dynamical systems are presented in this regard and a possible application for dissipative predator--prey dynamics is also discussed.
Automatic tuning for linearly tunable filter
Huang, Sung-Ling
2004-09-30T23:59:59.000Z
A new tuning scheme for linearly tunable high-Q filters is proposed. The tuning method is based on using the phase information for both frequency and Q factor tuning. There is no need to find out the relationship between a filter's passband...
Numerical Linear Algebra and Optimization on Facebook
Sidorov, Nikita
Numerical Linear Algebra and Optimization on Facebook: "In a relationship" or "It's complicated indicate their "relationship status" on Facebook (!!!). (I don't need to define Facebook, right?) #12;Facebook is close to ubiquitous (1.2 billion users in March 2014). 556 million people log on to Facebook
Linear Signal Reconstruction from Jittered Sampling
Paris-Sud XI, Université de
Linear Signal Reconstruction from Jittered Sampling Alessandro Nordio (1) , Carla jitter, which is based on the analysis of the mean square error (MSE) between the reconstructed sig- nal of digital signal reconstruction as a function of the clock jitter, number of quantization bits, signal
Linearity -statistics 1.1B training
Linearity - statistics IPAT 1.1B training 300M training D0 resolution is evaluated using 100k single muon events (same events in all 3 plots). Red is the default 11L FTK bank trained using 300M muons on narrow beam of muons (central eta, fixed phi, high fixed pT). Using two types of training: default FTK
Robotic Motion The linear algebra of Canadarm
Murty, Ram
Robotic Motion The linear algebra of Canadarm #12;The robot arm simulation The movements of the robotic arm can be described using orthogonal matrices. #12;Six degrees of freedom The first segment the robotic arm to the position (x,y), we need to rotate the first arm by an angle and the second arm
Performance Bounds for Constrained Linear Stochastic Control
Engineering Department Stanford University Workshop on Optimization and Control with Applications, Harbin · numerical examples Workshop on Optimization and Control with Applications, Harbin, June 9 2009 1 #12;Linear is zero mean IID process noise, E wtwT t = W · state feedback control policy: ut = (xt), t = 0, 1
GENERALIZED LINEAR MODELS WITH REGULARIZATION A DISSERTATION
Hastie, Trevor
GENERALIZED LINEAR MODELS WITH REGULARIZATION A DISSERTATION SUBMITTED TO THE DEPARTMENT Park 2006 All Rights Reserved ii #12;I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor
Introduction to Statistical Linear Models Spring 2005
of multivariate data and in the language of matrices and vectors. Broad introduction to MATLAB/Octave, R (SSyllabus Introduction to Statistical Linear Models 960:577:01 Spring 2005 Instructor: Farid Statistical Analysis" Fifth edition, Prentice Hall, 2002. Other sources may be required and will be posted
MA265 Linear Algebra — Sample Exam 1
page 1. Purdue University. MA265 Linear Algebra — Sample Exam 1. Date: February 20, 2015 Duration: 50 ... 1. Determine A such that (let-(A). 7 .110 [p. 1100 O r. In. )1 A n 1. \\\\\\\\l_ he zlxrs M. \\11. '01 .... Rep'mr'ata. 1 F'ncl '3“ m muVVnN
Linear-quadratic fractional Gaussian control
Duncan, Tyrone E.; Pasik-Duncan, Bozenna
2013-01-01T23:59:59.000Z
In this paper a control problem for a linear stochastic system driven by a noise process that is an arbitrary zero mean, square integrable stochastic process with continuous sample paths and a cost functional that is quadratic in the system state...
Development of a Novel Linear Magnetostrictive Actuator
Sadighi, Ali
2010-10-12T23:59:59.000Z
. ............................................................. 11 Fig. 1.9. Photograph of the extended-range linear magnetostrictive actuator with double-sided three-phase stators. ............................................................................ 12 Fig. 2.1. The overall design process...-D Slab ..........................................................................................39 3.2.2 Stator...........................................................................................................41 ix Page 3.3 Winding...
STANFORD LINEAR ACCELERATOR CENTER DIRECTOR'S OFFICE
Wechsler, Risa H.
of these offices not listed here. PART 1: RESEARCH & DEVELOPMENT PROGRAM MANAGEMENT RECORDS R&D Program Management records document the basis for research and development program management decisions, direction, policiesSTANFORD LINEAR ACCELERATOR CENTER DIRECTOR'S OFFICE RECORDS CONTROL SCHEDULE SCOPE: This schedule
STANFORD LINEAR ACCELERATOR CENTER RECORDS CONTROL SCHEDULE
Wechsler, Risa H.
to project justification, staffing, initiation, or execution; project management plans, records managementSTANFORD LINEAR ACCELERATOR CENTER PEP-II RECORDS CONTROL SCHEDULE SCOPE: This schedule covers records of the PEP-II project, regardless of format (paper, electronic, magnetic, photographic, etc
Automatic tuning for linearly tunable filter
Huang, Sung-Ling
2004-09-30T23:59:59.000Z
A new tuning scheme for linearly tunable high-Q filters is proposed. The tuning method is based on using the phase information for both frequency and Q factor tuning. There is no need to find out the relationship between a filter's passband...
Diabetes Mellitus Glucose Prediction by Linear and
Diabetes Mellitus Glucose Prediction by Linear and Bayesian Ensemble Modeling Fredrik St was diagnosed with diabetes type 1. Being an engineer with a control and systems oriented curriculum I realized of diabetes glucose metabolism, and bringing new hope of technical solutions to support the management
Linear Algebra MATH 110 : 2006-07
Wehlau, David
MATH 110 Linear Algebra MATH 110 : 2006-07 Home Policies Fall Winter WebCT Instructor: G.G. Smith: MATH 111, 112 Lectures: (slot 014) Tuesday, 11:30-12:30 in 210 Walter Light Hall Wednesday, 13:30-14:30 in 210 Walter Light Hall Friday, 12:30-13:30 in 210 Walter Light Hall Tutorials: Wednesday, 8
Algebra Linear -Exercicios resolvidos Exercicio 1
Dias, Esmeralda Sousa
´Algebra Linear - Exerc´icios resolvidos Exerc´icio 1: Sejam E = L({(1, 1, 1), (1, 2, 2)}) e F = L~ao de E F ´e 1. Exerc´icio 2: No espa¸co dos polin´omios reais de grau menor ou igual a 3, P3
Architecture of an Automatic Tuned Linear Algebra
Cuenca, Javier
.... SPt c,z Architecture of a Self-Optimised Linear Algebra Routine (SOLAR) Installation_information n1 Current_network_availability % net1-1 ...%net1-p ... % netP-1 ..%netp-p SOLAR_manager Optimum_AP AP0 Algebra Routine of the library we want to build SOLAR_manager Manages the information and code of SOLAR
Optical Quadratic Measure Eigenmodes
Michael Mazilu; Joerg Baumgartl; Sebastian Kosmeier; Kishan Dholakia
2010-07-13T23:59:59.000Z
We report a mathematically rigorous technique which facilitates the optimization of various optical properties of electromagnetic fields. The technique exploits the linearity of electromagnetic fields along with the quadratic nature of their interaction with matter. In this manner we may decompose the respective fields into optical quadratic measure eigenmodes (QME). Key applications include the optimization of the size of a focused spot, the transmission through photonic devices, and the structured illumination of photonic and plasmonic structures. We verify the validity of the QME approach through a particular experimental realization where the size of a focused optical field is minimized using a superposition of Bessel beams.
APPENDIX 475 C. Some Results from Linear Algebra
Gajic, Zoran
APPENDIX 475 C. Some Results from Linear Algebra Linear algebra plays a very important role some standard and important linear algebra results. Definite Matrices Definition C.1: A square matrix of dimensions 798A@ is the space spanned by vectors B that satisfy CDBFEHG . Systems of Linear Algebraic
Datadriven calibration of linear estimators with minimal penalties
This paper tackles the problem of selecting among several linear estimators in non parametric regression; this includes model selection for linear regression, the choice of a regularization parameter in kernel ridge classification, with linear and non linear predictors [37, 36]. A central issue common to all regularization
Data-driven calibration of linear estimators with minimal penalties
Paris-Sud XI, Université de
This paper tackles the problem of selecting among several linear estimators in non- parametric regression; this includes model selection for linear regression, the choice of a regularization parameter in kernel ridge classification, with linear and non- linear predictors [37, 36]. A central issue common to all regularization
STABILIZING SUPERVISORY CONTROL OF HYBRID SYSTEMS BASED ON PIECEWISE LINEAR
Antsaklis, Panos
STABILIZING SUPERVISORY CONTROL OF HYBRID SYSTEMS BASED ON PIECEWISE LINEAR LYAPUNOV FUNCTIONS1 Lyapunov func- tions. In particular, we consider discrete-time switched linear systems. The control problem of discrete-time piecewise linear hybrid systems is in- vestigated using piecewise linear Lyapunov functions
Controllability of Linear Systems with inner derivation on Lie Groups
Boyer, Edmond
Controllability of Linear Systems with inner derivation on Lie Groups Philippe JOUAN November 2 group of automorphisms. A control-ane system is linear if the drift is linear and the controlled vector groups are stated. The paper ends by many examples. Keywords: Lie groups; Linear systems; controllability
A Linear Programming based Satisfiability solver using a new
Rossi, Francesca
is unsatisfiable or has a satisfying assignment, we solve a linear program. The solution of the linear program a satisfying assignment or a contradiction we solve a linear program. By the above men- tioned lemmaA Linear Programming based Satisfiability solver using a new Horn-driven search tree design Hans
1. INTRODUCTION It is relatively easy to control linear systems.
Wilamowski, Bogdan Maciej
of the biggest challenges in modern control theory. While linear control system theory has been well developed1. INTRODUCTION It is relatively easy to control linear systems. Unfortunately, in practice most systems are nonlinear. Some of them can be linearized and use well developed linear control theory
Integer Algorithms to Solver Diophantine Linear Equations and Systems
Florentin Smarandache
2007-11-28T23:59:59.000Z
The present work includes some of the author's original researches on integer solutions of Diophantine liner equations and systems. The notion of "general integer solution" of a Diophantine linear equation with two unknowns is extended to Diophantine linear equations with $n$ unknowns and then to Diophantine linear systems. The proprieties of the general integer solution are determined (both for a Diophantine linear equation and for a Diophantine linear system). Seven original integer algorithms (two for Diophantine linear equations, and five for Diophantine linear systems) are exposed. The algorithms are strictly proved and an example for each of them is given. These algorithms can be easily implemented on the computer.
for Storage Ring Facilities, University of Aarhus, Denmark 15 University of Aarhus, Aarhus, Denmark (Dated acting as a quarter wave plate to induce a degree of circular polarisation in a high energy linearly polarisation of the photon beam is characterised by measuring the asymmetry in e + e pair production in a Ge
Dowling, Jonathan P.
to the loss of photons caused by the inter- action between the fiber and the electromagnetic field. By frequently monitoring the presence of the photon through a quantum non-demolition (QND) measurement), and the processing is accomplished by sending the photon through a system of linear optical elements and using
Delayed Linear Expansion of Two Ultra-low Expansion Dental Stones
Oppedisano, Michael
2013-12-20T23:59:59.000Z
The purpose of this study was to measure the linear setting expansion of two ultra-low expansion dental stones used in definitive cast/ prosthesis fabrication which claim to have very low to no setting expansion. Five specimens of each material...
Electron-positron pair production by linearly polarized photon in the nuclear field
Bakmaev, S; Peresunko, Yu P; Shapoval, I; Peresunko, Yu. P.
2008-01-01T23:59:59.000Z
Process of lepton pair production by polarized photon can be used to measure the degree of linear polarization of high energy photon. The differential cross section and the analyzing power are calculated with taking into account higher powers of expansion on $Z\\alpha$. Pure Coulomb and screened potential are considered.
Robust real-time optimization for the linear oil blending Stefan Janaqia
Paris-Sud XI, Université de
blending process. The blending process consists in determining the optimal mix of components so. The feedback is based on measures of the blends' and components' properties gathered by online analyzers1 Robust real-time optimization for the linear oil blending Stefan Janaqia , Jorge Aguileraa
Delayed Linear Expansion of Two Ultra-low Expansion Dental Stones
Oppedisano, Michael
2013-12-20T23:59:59.000Z
The purpose of this study was to measure the linear setting expansion of two ultra-low expansion dental stones used in definitive cast/ prosthesis fabrication which claim to have very low to no setting expansion. Five specimens of each material...
Teodor I. Burghelea; Hans J. Griess; Helmut Muenstedt
2010-01-15T23:59:59.000Z
An experimental study of the physical origin and the mechanisms of the sharkskin instability is presented. Extrusion flows through a slit die are studied for two materials: a linear low density polyethylene (LLDPE) and a low density polyethylene (LDPE). By combining laser-Doppler velocimetry (LDV) with rheological measurements in both uniaxial extension and shear, the distributions of tensile and shear stresses in extrusion flows are measured for both materials.
Efficiency limits for linear optical processing of single photons and single-rail qubits
Dominic W. Berry; A. I. Lvovsky; Barry C. Sanders
2006-05-03T23:59:59.000Z
We analyze the problem of increasing the efficiency of single-photon sources or single-rail photonic qubits via linear optical processing and destructive conditional measurements. In contrast to previous work we allow for the use of coherent states and do not limit to photon-counting measurements. We conjecture that it is not possible to increase the efficiency, prove this conjecture for several important special cases, and provide extensive numerical results for the general case.
On the mathematical modelling of measurement
Jonathan Barzilai
2006-09-20T23:59:59.000Z
The operations of linear algebra, calculus, and statistics are routinely applied to measurement scales but certain mathematical conditions must be satisfied in order for these operations to be applicable. We call attention to the conditions that lead to construction of measurement scales that enable these operations.
Towards a Future Linear Collider and The Linear Collider Studies at CERN
None
2011-10-06T23:59:59.000Z
During the week 18-22 October, more than 400 physicists will meet at CERN and in the CICG (International Conference Centre Geneva) to review the global progress towards a future linear collider. The 2010 International Workshop on Linear Colliders will study the physics, detectors and accelerator complex of a linear collider covering both the CLIC and ILC options. Among the topics presented and discussed will be the progress towards the CLIC Conceptual Design Report in 2011, the ILC Technical Design Report in 2012, physics and detector studies linked to these reports, and an increasing numbers of common working group activities. The seminar will give an overview of these topics and also CERN?s linear collider studies, focusing on current activities and initial plans for the period 2011-16. n.b: The Council Chamber is also reserved for this colloquium with a live transmission from the Main Auditorium.
Enhanced dielectric-wall linear accelerator
Sampayan, S.E.; Caporaso, G.J.; Kirbie, H.C.
1998-09-22T23:59:59.000Z
A dielectric-wall linear accelerator is enhanced by a high-voltage, fast e-time switch that includes a pair of electrodes between which are laminated alternating layers of isolated conductors and insulators. A high voltage is placed between the electrodes sufficient to stress the voltage breakdown of the insulator on command. A light trigger, such as a laser, is focused along at least one line along the edge surface of the laminated alternating layers of isolated conductors and insulators extending between the electrodes. The laser is energized to initiate a surface breakdown by a fluence of photons, thus causing the electrical switch to close very promptly. Such insulators and lasers are incorporated in a dielectric wall linear accelerator with Blumlein modules, and phasing is controlled by adjusting the length of fiber optic cables that carry the laser light to the insulator surface. 6 figs.
Partially linear models with unit roots
Juhl, Ted P.; Xiao, Z. J.
2005-10-01T23:59:59.000Z
~y tH110021 * H11002 [y tH110021 * !~e t H11002 [e t H11001g~x t !H11002 [g~x t !! Zf t 2 H11001o p ~1!+ PARTIALLY LINEAR MODELS WITH UNIT ROOTS 897 The theorem holds because 1 N 2 ( tH110051 N ~y tH110021 * H11002 [y tH110021 * ! 2 Zf t 2 nE~f 2 !s v... in econometrics+ One type of these models is the following partially linear regression: y t H11005g ' z t H11001g~x t !H11001e t , tH110051,+++,N, (1.1) where g~{! is an unknown real function and g is the vector of unknown param- eters that we want to estimate...
Enhanced dielectric-wall linear accelerator
Sampayan, Stephen E. (Manteca, CA); Caporaso, George J. (Livermore, CA); Kirbie, Hugh C. (Dublin, CA)
1998-01-01T23:59:59.000Z
A dielectric-wall linear accelerator is enhanced by a high-voltage, fast e-time switch that includes a pair of electrodes between which are laminated alternating layers of isolated conductors and insulators. A high voltage is placed between the electrodes sufficient to stress the voltage breakdown of the insulator on command. A light trigger, such as a laser, is focused along at least one line along the edge surface of the laminated alternating layers of isolated conductors and insulators extending between the electrodes. The laser is energized to initiate a surface breakdown by a fluence of photons, thus causing the electrical switch to close very promptly. Such insulators and lasers are incorporated in a dielectric wall linear accelerator with Blumlein modules, and phasing is controlled by adjusting the length of fiber optic cables that carry the laser light to the insulator surface.
Linear source approximation in CASMO5
Ferrer, R.; Rhodes, J. [Studsvik Scandpower, Inc., 504 Shoup Ave., Idaho Falls, ID 83402 (United States); Smith, K. [Dept. of Nuclear Science and Engineering, Massachusetts Inst. of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 (United States)
2012-07-01T23:59:59.000Z
A Linear Source (LS) approximation has been implemented in the two-dimensional Method of Characteristics (MOC) transport solver in a prototype version of CASMO5. The LS approximation, which relies on the computation of trajectory-based spatial moments over source regions to obtain the linear source expansion coefficients, improves the solution accuracy relative to the 'flat' or constant source approximation. In addition, the LS formulation is capable of treating arbitrarily-shaped source regions and is compatible with standard Coarse-Mesh Finite Difference (CMFD) acceleration. Numerical tests presented in this paper for the C5G7 MOX benchmark show that, for comparable accuracy with respect to the reference solution, the LS approximation can reduce the run time by a factor of four and the memory requirements by a factor often relative to the FS scheme. (authors)
Measures of operator entanglement of two-qubit gates
Balakrishnan, S
2011-01-01T23:59:59.000Z
Two different measures of operator entanglement of two-qubit gates, namely, Schmidt strength and linear entropy, are studied. While these measures are shown to have one-to-one relation between them for Schmidt number 2 class of gates, no such relation exists for Schmidt number 4 class, implying that the measures are inequivalent in general. Further, we establish a simple relation between linear entropy and local invariants of two-qubit gates. The implication of the relation is discussed.
Measures of operator entanglement of two-qubit gates
S. Balakrishnan; R. Sankaranarayanan
2011-06-21T23:59:59.000Z
Two different measures of operator entanglement of two-qubit gates, namely, Schmidt strength and linear entropy, are studied. While these measures are shown to have one-to-one relation between them for Schmidt number 2 class of gates, no such relation exists for Schmidt number 4 class, implying that the measures are inequivalent in general. Further, we establish a simple relation between linear entropy and local invariants of two-qubit gates. The implication of the relation is discussed.
Radio frequency quadrupole resonator for linear accelerator
Moretti, Alfred (Downers Grove, IL)
1985-01-01T23:59:59.000Z
An RFQ resonator for a linear accelerator having a reduced level of interfering modes and producing a quadrupole mode for focusing, bunching and accelerating beams of heavy charged particles, with the construction being characterized by four elongated resonating rods within a cylinder with the rods being alternately shorted and open electrically to the shell at common ends of the rods to provide an LC parallel resonant circuit when activated by a magnetic field transverse to the longitudinal axis.
Generative Story Worlds Linear Logic Programs
Goldstein, Seth Copen
with standard logical implication: buy_soda : has(Alice, $1) ^ wants(Alice, soda) has(Alice, soda) #12;LINEAR LOGIC 13 A -o B #12;14 buy_soda : has(Alice, $1) * wants(Alice, soda) -o has(Alice, soda) #12;15 A * B/murder : anger C C' * anger C C' * anger C C' * anger C C' * at C L * at C' L * has C weapon -o {at C L * !dead C
Linear feature selection for multipopulation classification
Havens, Kathryn Anne
1974-01-01T23:59:59.000Z
) December 1974 ABSTRACT Linear Feature Selection for Multipopulation Classification. (December 1974) Kathryn A. Havens, B. S. , Lamar University Chairman of Advisory Committee: Dr. L. F. Guseman, Jr. A classification procedure for n...-dimensional normally distributed observation vectors which belong to one of three populations is de- scribed. In particular, a computational procedure is presented for finding a lxn vector B which minimizes the probability of misclassification with respect...
Aleks Kleyn
2015-05-08T23:59:59.000Z
Module is effective representation of ring in Abelian group. Linear map of module over commutative ring is morphism of corresponding representation. This definition is the main subject of the book. To consider this definition from more general point of view I started the book from consideration of Cartesian product of representations. Polymorphism of representations is a map of Cartesian product of representations which is a morphism of representations with respect to each separate independent variable. Reduced morphism of representations allows us to simplify the study of morphisms of representations. However a representation has to satisfy specific requirements for existence of reduced polymomorphism of representations. It is possible that Abelian group is only $\\Omega$-algebra, such that representation in this algebra admits polymorphism of representations. However, today, this statement has not been proved. Multiplicative $\\Omega$-group is $\\Omega$-algebra in which product is defined. The definition of tensor product of representations of Abelian multiplicative $\\Omega$-group is based on properties of reduced polymorphism of representations of Abelian multiplicative $\\Omega$-group. Since an algebra is a module in which the product is defined, then we can use this theory to study linear map of algebra. For instance, we can study the set of linear transformations of $D$-algebra $A$ as representation of algebra $A\\otimes A$ in algebra $A$.
Tunnel current across linear homocatenated germanium chains
Matsuura, Yukihito, E-mail: matsuura@chem.nara-k.ac.jp [Department of Chemical Engineering, Nara National College of Technology Yatacho 22, Yamato-koriyama, Nara 539-1080 (Japan)
2014-01-28T23:59:59.000Z
The electronic transport properties of germanium oligomers catenating into linear chains (linear Ge chains) have been theoretically studied using first principle methods. The conduction mechanism of a Ge chain sandwiched between gold electrodes was analyzed based on the density of states and the eigenstates of the molecule in a two-probe environment. Like that of silicon chains (Si chains), the highest occupied molecular orbital of Ge chains contains the extended ?-conjugation of Ge 4p orbitals at energy levels close to the Fermi level; this is in contrast to the electronic properties of linear carbon chains. Furthermore, the conductance of a Ge chain is expected to decrease exponentially with molecular length L. The decay constant ?, which is defined as e{sup ??L}, of a Ge chain is similar to that of a Si chain, whereas the conductance of the Ge chains is higher than that of Si chains even though the Ge–Ge bond length is longer than the Si–Si bond length.
Linear optics, Raman scattering, and spin noise spectroscopy
Glazov, M M
2015-01-01T23:59:59.000Z
Spin noise spectroscopy (SNS) is a new method for studying magnetic resonance and spin dynamics based on measuring the Faraday rotation noise. In strong contrast with methods of nonlinear optics, the spectroscopy of spin noise is considered to be essentially nonperturbative. Presently, however, it became clear that the SNS, as an optical technique, demonstrates properties lying far beyond the bounds of conventional linear optics. Specifically, the SNS shows dependence of the signal on the light power density, makes it possible to penetrate inside an inhomogeneously broadened absorption band and to determine its homogeneous width, allows one to realize an effective pump-probe spectroscopy without any optical nonlinearity, etc. This may seem especially puzzling when taken into account that SNS can be considered just as a version of Raman spectroscopy, which is known to be deprived of such abilities. In this paper, we clarify this apparent inconsistency.
Extra dimensions and Seesaw Neutrinos at the International Linear Collider
Tomoyuki Saito; Masaki Asano; Keisuke Fujii; Naoyuki Haba; Shigeki Matsumoto; Takehiro Nabeshima; Yosuke Takubo; Hitoshi Yamamoto; Koichi Yoshioka
2010-11-27T23:59:59.000Z
We study the capability of the international linear collider (ILC) to probe extra dimensions via the seesaw mechanism. In the scenario we study, heavy Kaluza-Klein neutrinos generate tiny neutrino masses and, at the same time, have sizable couplings to the standard-model particles. Consequently, a Kaluza-Klein tower of heavy neutrinos (N) can be produced and studied at the ILC through the process: e+e- -> vN followed by N -> Wl decay. We show that the single lepton plus two-jets final states with large missing energy from this signal process will provide a good opportunity to measure the masses and cross sections of Kaluza-Klein neutrinos up to the third level. Furthermore, the neutrino oscillation parameters can be extracted from the flavor dependence of the lowest-mode signals, which give us information about the origin of low-energy neutrino masses.
Beam dynamics in a long-pulse linear induction accelerator
Ekdahl, Carl [Los Alamos National Laboratory; Abeyta, Epifanio O [Los Alamos National Laboratory; Aragon, Paul [Los Alamos National Laboratory; Archuleta, Rita [Los Alamos National Laboratory; Cook, Gerald [Los Alamos National Laboratory; Dalmas, Dale [Los Alamos National Laboratory; Esquibel, Kevin [Los Alamos National Laboratory; Gallegos, Robert A [Los Alamos National Laboratory; Garnett, Robert [Los Alamos National Laboratory; Harrison, James F [Los Alamos National Laboratory; Johnson, Jeffrey B [Los Alamos National Laboratory; Jacquez, Edward B [Los Alamos National Laboratory; Mc Cuistian, Brian T [Los Alamos National Laboratory; Montoya, Nicholas A [Los Alamos National Laboratory; Nath, Subrato [Los Alamos National Laboratory; Nielsen, Kurt [Los Alamos National Laboratory; Oro, David [Los Alamos National Laboratory; Prichard, Benjamin [Los Alamos National Laboratory; Rose, Chris R [Los Alamos National Laboratory; Sanchez, Manolito [Los Alamos National Laboratory; Schauer, Martin M [Los Alamos National Laboratory; Seitz, Gerald [Los Alamos National Laboratory; Schulze, Martin [Los Alamos National Laboratory; Bender, Howard A [Los Alamos National Laboratory; Broste, William B [Los Alamos National Laboratory; Carlson, Carl A [Los Alamos National Laboratory; Frayer, Daniel K [Los Alamos National Laboratory; Johnson, Douglas E [Los Alamos National Laboratory; Tom, C Y [Los Alamos National Laboratory; Trainham, C [Los Alamos National Laboratory; Williams, John [Los Alamos National Laboratory; Scarpetti, Raymond [LLNL; Genoni, Thomas [VOSS; Hughes, Thomas [VOSS; Toma, Carsten [VOSS
2010-01-01T23:59:59.000Z
The second axis of the Dual Axis Radiography of Hydrodynamic Testing (DARHT) facility produces up to four radiographs within an interval of 1.6 microseconds. It accomplishes this by slicing four micro-pulses out of a long 1.8-kA, 16.5-MeV electron beam pulse and focusing them onto a bremsstrahlung converter target. The long beam pulse is created by a dispenser cathode diode and accelerated by the unique DARHT Axis-II linear induction accelerator (LIA). Beam motion in the accelerator would be a problem for radiography. High frequency motion, such as from beam breakup instability, would blur the individual spots. Low frequency motion, such as produced by pulsed power variation, would produce spot to spot differences. In this article, we describe these sources of beam motion, and the measures we have taken to minimize it.
Extreme hydrogen plasma densities achieved in a linear plasma generator
Rooij, G. J. van; Veremiyenko, V. P.; Goedheer, W. J.; de Groot, B.; Kleyn, A. W.; Smeets, P. H. M.; Versloot, T. W.; Whyte, D. G.; Engeln, R.; Schram, D. C.; Cardozo, N. J. Lopes [FOM-Institute for Plasma Physics Rijnhuizen, Association EURATOM-FOM, Trilateral Euregio Cluster, Nieuwegein, Uthrecht 3430BE (Netherlands); Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307 (United States); FOM-Institute for Plasma Physics Rijnhuizen, Association EURATOM-FOM, Trilateral Euregio Cluster, Nieuwegein, Uthrecht 3430BE (NL) and Eindhoven University of Technology, 5600 MB Eindhoven (Netherlands)
2007-03-19T23:59:59.000Z
A magnetized hydrogen plasma beam was generated with a cascaded arc, expanding in a vacuum vessel at an axial magnetic field of up to 1.6 T. Its characteristics were measured at a distance of 4 cm from the nozzle: up to a 2 cm beam diameter, 7.5x10{sup 20} m{sup -3} electron density, {approx}2 eV electron and ion temperatures, and 3.5 km/s axial plasma velocity. This gives a 2.6x10{sup 24} H{sup +} m{sup -2} s{sup -1} peak ion flux density, which is unprecedented in linear plasma generators. The high efficiency of the source is obtained by the combined action of the magnetic field and an optimized nozzle geometry. This is interpreted as a cross-field return current that leads to power dissipation in the beam just outside the source.
Linear Collider Physics Resource Book Snowmass 2001
Ronan (Editor), M.T.
2001-06-01T23:59:59.000Z
The American particle physics community can look forward to a well-conceived and vital program of experimentation for the next ten years, using both colliders and fixed target beams to study a wide variety of pressing questions. Beyond 2010, these programs will be reaching the end of their expected lives. The CERN LHC will provide an experimental program of the first importance. But beyond the LHC, the American community needs a coherent plan. The Snowmass 2001 Workshop and the deliberations of the HEPAP subpanel offer a rare opportunity to engage the full community in planning our future for the next decade or more. A major accelerator project requires a decade from the beginning of an engineering design to the receipt of the first data. So it is now time to decide whether to begin a new accelerator project that will operate in the years soon after 2010. We believe that the world high-energy physics community needs such a project. With the great promise of discovery in physics at the next energy scale, and with the opportunity for the uncovering of profound insights, we cannot allow our field to contract to a single experimental program at a single laboratory in the world. We believe that an e{sup +}e{sup -} linear collider is an excellent choice for the next major project in high-energy physics. Applying experimental techniques very different from those used at hadron colliders, an e{sup +}e{sup -} linear collider will allow us to build on the discoveries made at the Tevatron and the LHC, and to add a level of precision and clarity that will be necessary to understand the physics of the next energy scale. It is not necessary to anticipate specific results from the hadron collider programs to argue for constructing an e{sup +}e{sup -} linear collider; in any scenario that is now discussed, physics will benefit from the new information that e{sup +}e{sup -} experiments can provide. This last point merits further emphasis. If a new accelerator could be designed and built in a few years, it would make sense to wait for the results of each accelerator before planning the next one. Thus, we would wait for the results from the Tevatron before planning the LHC experiments, and wait for the LHC before planning any later stage. In reality accelerators require a long time to construct, and they require such specialized resources and human talent that delay can cripple what would be promising opportunities. In any event, we believe that the case for the linear collider is so compelling and robust that we can justify this facility on the basis of our current knowledge, even before the Tevatron and LHC experiments are done. The physics prospects for the linear collider have been studied intensively for more than a decade, and arguments for the importance of its experimental program have been developed from many different points of view. This book provides an introduction and a guide to this literature. We hope that it will allow physicists new to the consideration of linear collider physics to start from their own personal perspectives and develop their own assessments of the opportunities afforded by a linear collider.
Rotary-linear axes for high speed machining
Liebman, Michael Kevin, 1974-
2001-01-01T23:59:59.000Z
This thesis presents the design, analysis, fabrication, and control of a rotary-linear axis; this axis is a key subsystem for high speed, 5-axis machine tools intended for fabricating centimeter-scale parts. The rotary-linear ...
A Bayesian Approach to Empirical Local Linearization For Robotics
Ting, Jo-Anne; D'Souza, Aaron; Vijayakumar, Sethu; Schaal, Stefan
2008-01-01T23:59:59.000Z
Local linearizations are ubiquitous in the control of robotic systems. Analytical methods, if available, can be used to obtain the linearization, but in complex robotics systems where the dynamics and kinematics are ...
Repetitive Control of a Novel Linear Magnetostrictive Actuator
Zhu, Ruikang
2014-08-10T23:59:59.000Z
This thesis presents the repetitive control (RC) design of a novel linear magnetostrictive actuator. A repetitive controller is developed and tested on a novel linear magnetostrictive actuator to improve the tracking accuracy of the actuator to a...
Controller Synthesis of Discrete Linear Plants Using MATTEO SLANINA
Sankaranarayanan, Sriram
Controller Synthesis of Discrete Linear Plants Using Polyhedra MATTEO SLANINA Stanford University controllers for linear discrete systems with disturbances. Given a plant description and a safety We study techniques for synthesizing synchronous controllers for affine plants with disturbances
Trajectory Optimization using Mixed-Integer Linear Programming
Trajectory Optimization using Mixed-Integer Linear Programming by Arthur George Richards Master Optimization using Mixed-Integer Linear Programming by Arthur George Richards Submitted to the Department subjected to avoidance and assignment requirements. The former include avoidance of collisions
Project Profile: Commercial Development of an Advanced Linear...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Profile: Commercial Development of an Advanced Linear-Fresnel-Based CSP Concept SkyFuel logo SkyFuel, under the CSP R&D FOA, is developing a commercial linear-Fresnel-based...
Noncommercial Software for Mixed-Integer Linear Programming
2004-12-23T23:59:59.000Z
Dec 23, 2004 ... A mixed-integer linear program (MILP) is a mathematical program with linear ...... In addition to defining new template classes of constraints and .... This management must be performed by all MILP solvers, but it can be ...
Thoughts on Incorporating HPRF in a Linear Cooling Channel
Gallardo, Juan C.
2010-01-01T23:59:59.000Z
International Muon Ionization Cooling Experiment (MICE), in.of using HPRF in a linear cooling channel. A hybrid channelHPRF In A Linear Cooling Channel Juan C. Gallardo a and
Positron Polarization at the International Linear Collider
P. Osland; N. Paver
2005-07-15T23:59:59.000Z
We review some recent arguments supporting the upgrade of the International Linear Collider by a polarized positron beam, in addition to the polarized electron beam. The examples presented here mainly focus on the impact of positron polarization on items relevant to new physics searches, such as the identification of novel interactions in fermion-pair production and the formulation of new CP-sensitive observables. In particular, in addition to the benefits from positron and electron longitudinal polarizations, the advantages in this field of having transverse polarization of both beams are emphasized.
Beyond linear gyrocenter polarization in gyrokinetic theory
Brizard, Alain J. [Department of Physics, Saint Michael's College, Colchester, Vermont 05439 (United States)] [Department of Physics, Saint Michael's College, Colchester, Vermont 05439 (United States)
2013-09-15T23:59:59.000Z
The concept of polarization in gyrokinetic theory is clarified and generalized to include contributions from the guiding-center (zeroth-order) polarization as well as the nonlinear (second-order) gyrocenter polarization. The guiding-center polarization, which appears as the antecedent (zeroth-order) of the standard linear (first-order) gyrocenter polarization, is obtained from a modified guiding-center transformation. The nonlinear gyrocenter polarization is derived either variationally from the third-order gyrocenter Hamiltonian or directly by gyrocenter push-forward method.
Micromechanism linear actuator with capillary force sealing
Sniegowski, Jeffry J. (Albuquerque, NM)
1997-01-01T23:59:59.000Z
A class of micromachine linear actuators whose function is based on gas driven pistons in which capillary forces are used to seal the gas behind the piston. The capillary forces also increase the amount of force transmitted from the gas pressure to the piston. In a major subclass of such devices, the gas bubble is produced by thermal vaporization of a working fluid. Because of their dependence on capillary forces for sealing, such devices are only practical on the sub-mm size scale, but in that regime they produce very large force times distance (total work) values.
Microfabricated linear Paul-Straubel ion trap
Mangan, Michael A. (Albuquerque, NM); Blain, Matthew G. (Albuquerque, NM); Tigges, Chris P. (Albuquerque, NM); Linker, Kevin L. (Albuquerque, NM)
2011-04-19T23:59:59.000Z
An array of microfabricated linear Paul-Straubel ion traps can be used for mass spectrometric applications. Each ion trap comprises two parallel inner RF electrodes and two parallel outer DC control electrodes symmetric about a central trap axis and suspended over an opening in a substrate. Neighboring ion traps in the array can share a common outer DC control electrode. The ions confined transversely by an RF quadrupole electric field potential well on the ion trap axis. The array can trap a wide array of ions.
Sums in linear algebraic lambda-calculus
Díaz-Caro, Alejandro
2010-01-01T23:59:59.000Z
In this paper we define the confluent additive fragment of the linear-algebraic lambda-calculus. We also define a fine-grained type system which includes sums of types as a reflection of those in the terms. After proving the subject reduction and strong normalisation properties, we study the role of sums within the calculus by interpreting our system into System F with pairs. We show that this calculus can be interpreted as System F with an associative and commutative pair constructor, which is distributive under application.
Parallel ion strings in linear multipole traps
Mathieu Marciante; Caroline Champenois; J. Pedregosa-Gutierrez; Annette Calisti; Martina Knoop
2011-03-13T23:59:59.000Z
Additional radio-frequency (rf) potentials applied to linear multipole traps create extra field nodes in the radial plane which allow one to confine single ions, or strings of ions, in totally rf field-free regions. The number of nodes depends on the order of the applied multipole potentials and their relative distance can be easily tuned by the amplitude variation of the applied voltages. Simulations using molecular dynamics show that strings of ions can be laser cooled down to the Doppler limit in all directions of space. Once cooled, organized systems can be moved with very limited heating, even if the cooling process is turned off.
Physics at the $e^+ e^-$ Linear Collider
DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)
Moortgat-Picka, G.; Kronfeld, A. S.
2015-08-14T23:59:59.000Z
A comprehensive review of physics at an e+e? linear collider in the energy range of s?=92 GeV–3 TeV is presented in view of recent and expected LHC results, experiments from low-energy as well as astroparticle physics. The report focusses in particular on Higgs-boson, top-quark and electroweak precision physics, but also discusses several models of beyond the standard model physics such as supersymmetry, little Higgs models and extra gauge bosons. The connection to cosmology has been analysed as well.
Linearized Non-Minimal Higher Curvature Supergravity
Farakos, Fotis; Koutrolikos, Konstantinos
2015-01-01T23:59:59.000Z
In the framework of linearized non-minimal supergravity (20/20), we present the embedding of the $R + R^2$ model and we analyze its field spectrum. As usual, the auxiliary fields of the Einstein theory now become propagating, giving rise to additional degrees of freedom, which organize themselves into on-shell irreducible supermultiplets. By performing the analysis both in component and superspace formulations we identify the new supermultiplets. On top of the two massive chiral superfields reminiscent of the old-minimal supergravity embedding, the spectrum contains also a consistent physical, massive, vector supermultiplet and a tachyonic ghost, massive, vector supermultiplet.
Linearized Non-Minimal Higher Curvature Supergravity
Fotis Farakos; Alex Kehagias; Konstantinos Koutrolikos
2015-01-29T23:59:59.000Z
In the framework of linearized non-minimal supergravity (20/20), we present the embedding of the $R + R^2$ model and we analyze its field spectrum. As usual, the auxiliary fields of the Einstein theory now become propagating, giving rise to additional degrees of freedom, which organize themselves into on-shell irreducible supermultiplets. By performing the analysis both in component and superspace formulations we identify the new supermultiplets. On top of the two massive chiral superfields reminiscent of the old-minimal supergravity embedding, the spectrum contains also a consistent physical, massive, vector supermultiplet and a tachyonic ghost, massive, vector supermultiplet.
Alternative to the Well-known Statistical Dynamics of Linear Systems
V. N. Tibabishev
2013-01-22T23:59:59.000Z
The problem of determining the mathematical model of the dynamics of multi-dimensional control systems in the presence of noise under the condition that the correlation functions cannot be found. Known statistical dynamics of linear systems is a more effective alternative. Background information is presented in the form of individual implementations nonergodic stochastic processes. Such a realization is deterministic functions. We introduce the concept of systems of sets of signals for the components on the semiring. For the system of sets of linearly dependent and linearly independent of the measured signals of a certain frequency properties. Frequency method is designed to deal with the noise on the set of deterministic functions. Example is the determination of the dynamic characteristics of the aircraft in accordance with the data obtained in one automatic landing.
MEASUREMENT, FILTERING AND CONTROL IN QUANTUM OPEN DYNAMICAL SYSTEMS.
Belavkin, Viacheslav P.
Markovian dynam- ical system with a quantum linear transmission line is studied. The optimal quantum multi-stage decision rule consisting of the classical linear optimal control strategy and quantum optimal ...lteringMEASUREMENT, FILTERING AND CONTROL IN QUANTUM OPEN DYNAMICAL SYSTEMS. V. P. BELAVKIN Abstract
Druid, displaying root module used for linear collider detectors
Ruan, M
2015-01-01T23:59:59.000Z
Based on the ROOT TEve/TGeo classes and the standard linear collider data structure, a dedicated linear collider event display has been developed. It supports the latest detector models for both International Linear Collider and Compact Linear Collider as well as the CALICE test beam prototypes. It can be used to visualise event information at the generation, simulation and reconstruction levels. Many options are provided in an intuitive interface. It has been heavily employed in a variety of analyses.
Text-Alternative Version: LED Replacements for Linear Fluorescent Lamps
Broader source: Energy.gov [DOE]
Below is the text-alternative version of the "LED Replacements for Linear Fluorescent Lamps" webcast, held June 20, 2011.
Exploiting separability in large-scale linear support vector machine ...
2009-04-20T23:59:59.000Z
Aug 7, 2007 ... universum classification, ordinal regression and ?-insensitive regression. .... ear, quadratic and non-linear optimization programmes.
A Dynamic Near-Optimal Algorithm for Online Linear Programming
Ye, Yinyu
-time forward dynamic pricing for PEVs charging/discharging on smart-grid; Yinyu Ye Online Linear Program 2009
Efficient scalable algorithms for solving dense linear systems with ...
2013-12-11T23:59:59.000Z
superfast direct solvers for both dense and sparse linear systems. ... Introduction. .... parallel HSS algorthms, taking into account communication latency and ...
Kernel Density Based Linear Regression Estimate and Zhibiao Zhao
Zhao, Zhibiao
Kernel Density Based Linear Regression Estimate Weixin Yao and Zhibiao Zhao Abstract For linear regression models with non-normally distributed errors, the least squares estimate (LSE) will lose some words: EM algorithm, Kernel density estimate, Least squares estimate, Linear regression, Maximum
Non-linear regression models for Approximate Bayesian Computation
Robert, Christian P.
Non-linear regression models for Approximate Bayesian Computation (ABC) Michael Blum Olivier ABC #12;Blum and OF (2009) suggest the use of non-linear conditional heteroscedastic regression models) Linear regression-based ABC can sometimes be improved #12;abc of ABC Using stochastic simulations
PROBABILISTIC AUTO-ASSOCIATIVE MODELS AND SEMI-LINEAR PCA
Paris-Sud XI, Université de
to this family of approaches, non-linear transformation of the original data set [7, 3] too. The auto-associative neural networks can also be view as a non-linear PCA model [2, 27, 4, 19]. In [13] we propose the auto that the projection function is linear and let the regression function be arbitrary. We call the resulting AAM
Math 261A -Spring 2012 M. Bremer Multiple Linear Regression
Keinan, Alon
called non-linear regression models or polynomial regression models, as the regression curveMath 261A - Spring 2012 M. Bremer Multiple Linear Regression So far, we have seen the concept of simple linear regression where a single predictor variable X was used to model the response variable Y
STATISTICAL MODEL OF SYSTEMATIC ERRORS: LINEAR ERROR MODEL
Rudnyi, Evgenii B.
to apply. The algorithm to maximize a likelihood function in the case of a non-linear physico - the same variances of errors 3.1. One-way classification 3.2. Linear regression 4. Real case (vaporizationSTATISTICAL MODEL OF SYSTEMATIC ERRORS: LINEAR ERROR MODEL E.B. Rudnyi Department of Chemistry
Transforming A Linear Algebra Core to An FFT Accelerator
Batory, Don
Transforming A Linear Algebra Core to An FFT Accelerator Ardavan Pedram, John McCalpin, Andreas the modifications required to transform a highly-efficient, specialized linear algebra core into an efficient engine computations and propose extensions to the micro-architecture of the baseline linear algebra core. Along
Evolutionary Non-linear Great Deluge for University Course Timetabling
Landa-Silva, Dario
Evolutionary Non-linear Great Deluge for University Course Timetabling Dario Landa-Silva and Joe-linear great deluge algorithm in which evolutionary opera- tors are incorporated. First, we generate of the evo- lutionary operators. Our results show that the hybrid between non-linear great deluge
Boundary approximate controllability of some linear parabolic April 5, 2013
Paris-Sud XI, Université de
Boundary approximate controllability of some linear parabolic systems April 5, 2013 Guillaume Olive controllability of two classes of linear parabolic systems, namely a system of n heat equations coupled through are the only ones concerning the boundary controllability of linear parabolic systems of heat-type. For more
Control structures in linear and stack-based Genetic Programming
Fernandez, Thomas
Control structures in linear and stack-based Genetic Programming Elko B. Tchernev and Dhananjay S condition, the if and else sections, etc.) are all subtrees of the flow- control node. Linear and stack implementation issues in linear and stack-based GP. A set of flow- control nodes is presented, and examples given
HIERARCHICAL CONTROL FOR A CLASS OF UNCERTAIN PIECEWISE LINEAR HYBRID
Antsaklis, Panos
HIERARCHICAL CONTROL FOR A CLASS OF UNCERTAIN PIECEWISE LINEAR HYBRID DYNAMICAL SYSTEMS Hai Lin ,1 for illustration. Keywords: Hybrid Systems, Piecewise Linear Systems, Hierarchical Control, Uncertainty 1, X.D. Koutsoukos and P.J. Antsaklis, "Hierarchical Control for A Class of Uncertain Piecewise Linear
LINEAR CONTROL SYSTEMS OVER ORE ALGEBRAS: EFFECTIVE ALGORITHMS FOR
Robertz, Daniel
LINEAR CONTROL SYSTEMS OVER ORE ALGEBRAS: EFFECTIVE ALGORITHMS FOR THE COMPUTATION@momo.math.rwth-aachen.de. Abstract: In this paper, we study linear control systems over Ore algebras. Within this mathematical framework, we can simultaneously deal with different classes of linear control systems such as time
HIERARCHICAL CONTROL FOR A CLASS OF UNCERTAIN PIECEWISE LINEAR HYBRID
Koutsoukos, Xenofon D.
HIERARCHICAL CONTROL FOR A CLASS OF UNCERTAIN PIECEWISE LINEAR HYBRID DYNAMICAL SYSTEMS Hai Lin ,1 for illustration. Keywords: Hybrid Systems, Piecewise Linear Systems, Hierarchical Control, Uncertainty 1 of the appropriate controller. In this paper we consider uncertain piecewise linear hybrid dynamical systems
Upcoming Numerical Linear Algebra Issues in Systems and Control Theory
Upcoming Numerical Linear Algebra Issues in Systems and Control Theory Paul Van Dooren University in the interdisciplinary area of numerical linear algebra and systems and control theory. Although we do not claimto, and normalized coprime factorizations in robust control. Key words. Numerical algorithms, linear algebra, sparse
Nonlinear Flight Control Using Neural Networks and Feedback Linearization
Nonlinear Flight Control Using Neural Networks and Feedback Linearization Byoung So0 Kim1, Anthony approaches to aircraft flight control involve linearization of these dynamicsabout a set of pre eliminate many of the undesirable features of linear control. Control of nonlinear systems by inverting
Linearization of affine connection control system David R. Tyner
Lewis, Andrew D.
Linearization of affine connection control system David R. Tyner 22/09/2002 Abstract A simple system. If these systems are underactuated then they do not provide a control- lable linearization about their equilibrium points. Without a controllable linearization it is not entirely clear how one should deriving
Optimal linear control systems with input derivative constraints
Moore, John Barratt
. Optimal linear control systems with input derivative constraints J. B. Moore, Ph. D., and Prof. B-loss-function minimisation problem is linear. The "paper applies the results of this optimal control theory to a class of performance desired. For linear, finite-dimensional, completely controllable systems, Kalmanl has shown
Adaptive continuous-time linear quadratic Gaussian control
Duncan, Tyrone E.; Guo, L.; Pasik-Duncan, Bozenna
1999-09-01T23:59:59.000Z
The adaptive linear quadratic Gaussian control problem, where the linear transformation of the state A and the linear transformation of the control B are unknown, is solved assuming only that (A, B) is controllable and (A, Q(1)(1/2)) is observable...
Stability and Controllability of Planar, Conewise Linear Systems
Broucke, Mireille E.
Stability and Controllability of Planar, Conewise Linear Systems Ari Arapostathis a,2 and Mireille and controllability of piecewise-linear systems defined on a conic partition of R2. This includes necessary. Key words: switched systems, piecewise linear systems, stability, controllability 1 Introduction
Effect of linear lumping on controllability and observability
TÃ³th, JÃ¡nos
Effect of linear lumping on controllability and observability ZsÂ´ofia HorvÂ´ath October 2006 Email to reduce the number of state variables on controllability and observability of linear differential the effect of linear lumping on such properties of the system as controllability and observability and apply
Upcoming Numerical Linear Algebra Issues in Systems and Control Theory
Upcoming Numerical Linear Algebra Issues in Systems and Control Theory Paul Van Dooren University in the interdisciplinary area of numerical linear algebra and systems and control theory. Although we do not claim, and normalized coprime factorizations in robust control. Key words. Numerical algorithms, linear algebra, sparse
Infinite-dimensional linear systems: a distributional approach
Opmeer, Mark
resolvent linear system and solve the linear quadratic optimal control problem for this class of systems contributions to the linear quadratic optimal control problem for operators on infinite-dimensional spaces. We quadratic optimal control problem on a finite time horizon for this class 1 #12;of systems. The infinite
FREQUENCY SHAPED LINEAR OPTIMAL CONTROL WXTH TRANSFER FUNCTION RICCATI EQUATIONS*
Moore, John Barratt
and numerical tool in optimal control problems associated with linear systems having state space descriptions optimal controllers for known multivariable linear stochastic systems. There are some inherent robustnessFREQUENCY SHAPED LINEAR OPTIMAL CONTROL WXTH TRANSFER FUNCTION RICCATI EQUATIONS* John B. Moore** D
Efficiency Mapping for a Linear Hydraulic-Actuator
Manring, Noah D.
Efficiency Mapping for a Linear Hydraulic-Actuator Noah D. Manring Mechanical and Aerospace at generating an efficiency map for a linear hydraulic-actuator that is controlled using an open-centered 4- way- ing the efficiency improvements that may be gained for linear hydraulic-actuators that use this type
OPTIMAL CONTROL OF LINEAR SYSTEMS WITH STATE EQUALITY CONSTRAINTS
Bitmead, Bob
, a number of modern model-based control design methods sought to deal with system constraints directlyOPTIMAL CONTROL OF LINEAR SYSTEMS WITH STATE EQUALITY CONSTRAINTS Sangho Ko , Robert R. Bitmead 1 with the optimal control problem for systems with state linear equality constraints. For deterministic linear
Is there a use for linear logic? Philip Wadler
Wadler, Philip
Is there a use for linear logic? Philip Wadler University of Glasgow \\Lambda March 1991 Abstract Past attempts to apply Girard's linear logic have either had a clear relation to the theory (Lafont. Type reconstruction in a linear type sys tem can derive information about sharing. An ap proach
The Equivalence between Row and Column Linear Regression
Tresp, Volker
The Equivalence between Row and Column Linear Regression: A Surprising Feature of Linear Regression and Communications 81730 M¨unchen, Germany Abstract The rows of the design matrix in linear regression are the inputs of the training data set. Normal regression is row regression: the goal is to predict a training target from
Astrophysical Gyrokinetics: Basic Equations and Linear Theory
Gregory G. Howes; Steven C. Cowley; William Dorland; Gregory W. Hammett; Eliot Quataert; Alexander A. Schekochihin
2006-05-04T23:59:59.000Z
Magnetohydrodynamic (MHD) turbulence is encountered in a wide variety of astrophysical plasmas, including accretion disks, the solar wind, and the interstellar and intracluster medium. On small scales, this turbulence is often expected to consist of highly anisotropic fluctuations with frequencies small compared to the ion cyclotron frequency. For a number of applications, the small scales are also collisionless, so a kinetic treatment of the turbulence is necessary. We show that this anisotropic turbulence is well described by a low frequency expansion of the kinetic theory called gyrokinetics. This paper is the first in a series to examine turbulent astrophysical plasmas in the gyrokinetic limit. We derive and explain the nonlinear gyrokinetic equations and explore the linear properties of gyrokinetics as a prelude to nonlinear simulations. The linear dispersion relation for gyrokinetics is obtained and its solutions are compared to those of hot-plasma kinetic theory. These results are used to validate the performance of the gyrokinetic simulation code {\\tt GS2} in the parameter regimes relevant for astrophysical plasmas. New results on global energy conservation in gyrokinetics are also derived. We briefly outline several of the problems to be addressed by future nonlinear simulations, including particle heating by turbulence in hot accretion flows and in the solar wind, the magnetic and electric field power spectra in the solar wind, and the origin of small-scale density fluctuations in the interstellar medium.
Ivanova, Oleksandra V; Afanasiev, Viktor L; Reshetnyk, Volodymyr M; Korsun, Pavlo P
2015-01-01T23:59:59.000Z
We present first measurements of the degree of linear polarization of distant comets C/2010 S1 (LINEAR) and C/2010 R1 (LINEAR) at heliocentric distances r= 5.9 - 7.0 AU. Observations were carried out with the SCORPIO-2 focal reducer at the 6-m telescope of the SAO RAS. Both comets showed considerable level of activity beyond a zone where water ice sublimation is negligible (up to 5 AU). Significant spatial variations both in the intensity and polarization are found in both comets. The slope of radial profiles of intensity changes gradually with the distance from the photocenter: from - 0.7 near the nucleus up to about - 1.3 for larger distances (up to 100000 km). The variation in polarization profiles indicates the non uniformity in the polarization distribution over the coma. The polarization degree over the coma gradually increases (in absolute value) with increasing the photocentric distance from of about - 1.9% up to - 3% for comet C/2010 S1 (LINEAR), and from of about - 2.5% up to - 3.5% for comet C/2010...
Effective Models for Dark Matter at the International Linear Collider
Daniel Schmeier
2013-08-20T23:59:59.000Z
Weakly interacting massive particles (WIMPs) form a promising solution to the dark matter problem and many experiments are now searching for these particles. Using effective field theories to describe the interaction of the WIMP with the Standard Model has proven successful in providing an easy way to compare the different experimental results. In this work, we show how effective operators can be formally derived from a UV-complete underlying theory, and we analyse these operators in different experimental contexts. We put our main focus on the expected sensitivity of the International Linear Collider (ILC) in searching for WIMPs by looking at events with single photons in the final state. Furthermore, we show explicit evaluations of the relic density measurements from the Wilkinson Microwave Anisotropy Probe and the XENON Dark Matter Project direct detection measurements to compare to the expected ILC results. We find that the ILC serves as a unique tool to probe possible WIMP interactions with the Standard Model for dark matter masses below 10 GeV. This extends to masses up to 490 GeV in cases where the interaction is spin-dependent or leptophilic.
Non-linear modulation of short wavelength compressional Alfven eigenmodes
Fredrickson, E. D.; Gorelenkov, N. N.; Podesta, M.; Gerhardt, S. P.; Bell, R. E.; Diallo, A.; LeBlanc, B. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States); Bortolon, A. [University of California, Irvine, California 92697 (United States); Crocker, N. A. [University of California, Los Angeles, California 90095 (United States); Levinton, F. M.; Yuh, H. [Nova Photonics, Princeton, New Jersey 08543 (United States)
2013-04-15T23:59:59.000Z
Most Alfvenic activity in the frequency range between toroidal Alfven eigenmodes and roughly one half of the ion cyclotron frequency on National Spherical Torus eXperiment [Ono et al., Nucl. Fusion 40, 557 (2000)], that is, approximately 0.3 MHz up to Almost-Equal-To 1.2 MHz, are modes propagating counter to the neutral beam ions. These have been modeled as Compressional and Global Alfven Eigenmodes (CAE and GAE) and are excited through a Doppler-shifted cyclotron resonance with the beam ions. There is also a class of co-propagating modes at higher frequency than the counter-propagating CAE and GAE. These modes have been identified as CAE, and are seen mostly in the company of a low frequency, n = 1 kink-like mode. In this paper, we present measurements of the spectrum of these high frequency CAE (hfCAE) and their mode structure. We compare those measurements to a simple model of CAE and present a predator-prey type model of the curious non-linear coupling of the hfCAE and the low frequency kink-like mode.
Koutsoukos, Xenofon D.
Design of Stabilizing Switching Control Laws for Discrete and Continuous-Time Linear Systems Using Piecewise-Linear Lyapunov Functions Xenofon D. Koutsoukos Palo Alto Research Center 3333 Coyote Hill Road-219-631-5792 Fax +1-219-631-4393 antsaklis.1@nd.edu Abstract In this paper, the stability of switched linear
Richmond, Geraldine L.
at Liquid Interfaces M. R. Watry and G. L. Richmond* Department of Chemistry, UniVersity of Oregon, Eugene/water interfaces. The linear alkane- and alkylbenzenesulfonates studied are, respectively, dodecanesulfonate of the number density of surfactant molecules at the interface. The change in aromatic ring orientation
Radio frequency focused interdigital linear accelerator
Swenson, Donald A.; Starling, W. Joel
2006-08-29T23:59:59.000Z
An interdigital (Wideroe) linear accelerator employing drift tubes, and associated support stems that couple to both the longitudinal and support stem electromagnetic fields of the linac, creating rf quadrupole fields along the axis of the linac to provide transverse focusing for the particle beam. Each drift tube comprises two separate electrodes operating at different electrical potentials as determined by cavity rf fields. Each electrode supports two fingers, pointing towards the opposite end of the drift tube, forming a four-finger geometry that produces an rf quadrupole field distribution along its axis. The fundamental periodicity of the structure is equal to one half of the particle wavelength .beta..lamda., where .beta. is the particle velocity in units of the velocity of light and .lamda. is the free space wavelength of the rf. Particles are accelerated in the gaps between drift tubes. The particle beam is focused in regions inside the drift tubes.
Development of compact linear accelerator in KBSI
Yoon, Jang-Hee; Lee, Byoung-Seob; Choi, Seyong; Park, Jin Yong; Ok, Jung-Woo; Won, Mi-Sook [Busan Center, Korea Basic Science Institute, Busan 609-735 (Korea, Republic of)
2012-02-15T23:59:59.000Z
The compact linear accelerator using a 28 GHz ECRIS is under construction in KBSI, South Korea. The main capability of this facility is the production of fast neurons for the neutron radiography. The designing of a superconducting magnet, microwave transmission system, beam extraction, and plasma chamber of ECRIS were finished. The nominal axial design fields of the magnets are 3.6 T at injection and 2.2 T at extraction; the nominal radial design field strength at the plasma chamber wall is 2.1 T. We already installed 10 kW, 28 GHz gyrotron, and tested a microwave power from gyrotron using a dummy load. The current status will be discussed in this paper.
Linear nozzle with tailored gas plumes
Kozarek, Robert L. (Apollo, PA); Straub, William D. (Pittsburgh, PA); Fischer, Joern E. (Bremen, DE); Leon, David D. (Murrysville, PA)
2003-01-01T23:59:59.000Z
There is claimed a method for depositing fluid material from a linear nozzle in a substantially uniform manner across and along a surface. The method includes directing gaseous medium through said nozzle to provide a gaseous stream at the nozzle exit that entrains fluid material supplied to the nozzle, said gaseous stream being provided with a velocity profile across the nozzle width that compensates for the gaseous medium's tendency to assume an axisymmetric configuration after leaving the nozzle and before reaching the surface. There is also claimed a nozzle divided into respective side-by-side zones, or preferably chambers, through which a gaseous stream can be delivered in various velocity profiles across the width of said nozzle to compensate for the tendency of this gaseous medium to assume an axisymmetric configuration.
Linear nozzle with tailored gas plumes
Leon, David D. (Murrysville, PA); Kozarek, Robert L. (Apollo, PA); Mansour, Adel (Mentor, OH); Chigier, Norman (Pittsburgh, PA)
2001-01-01T23:59:59.000Z
There is claimed a method for depositing fluid material from a linear nozzle in a substantially uniform manner across and along a surface. The method includes directing gaseous medium through said nozzle to provide a gaseous stream at the nozzle exit that entrains fluid material supplied to the nozzle, said gaseous stream being provided with a velocity profile across the nozzle width that compensates for the gaseous medium's tendency to assume an axisymmetric configuration after leaving the nozzle and before reaching the surface. There is also claimed a nozzle divided into respective side-by-side zones, or preferably chambers, through which a gaseous stream can be delivered in various velocity profiles across the width of said nozzle to compensate for the tendency of this gaseous medium to assume an axisymmetric configuration.
Terahertz-driven linear electron acceleration
Nanni, Emilio Alessandro; Ravi, Koustuban; Fallahi, Arya; Moriena, Gustavo; Miller, R J Dwayne; Kärtner, Franz X
2014-01-01T23:59:59.000Z
The cost, size and availability of electron accelerators is dominated by the achievable accelerating gradient. Conventional high-brightness radio-frequency (RF) accelerating structures operate with 30-50 MeV/m gradients. Electron accelerators driven with optical or infrared sources have demonstrated accelerating gradients orders of magnitude above that achievable with conventional RF structures. However, laser-driven electron accelerators require intense sources and suffer from low bunch charge, sub-micron tolerances and sub-femtosecond timing requirements due to the short wavelength of operation. Here, we demonstrate the first linear acceleration of electrons with keV energy gain using optically-generated terahertz (THz) pulses. THz-driven accelerating structures enable high-gradient electron accelerators with simple accelerating structures, high repetition rates and significant charge per bunch. Increasing the operational frequency of accelerators into the THz band allows for greatly increased accelerating ...
Krylov space solvers for shifted linear systems
B. Jegerlehner
1996-12-15T23:59:59.000Z
We investigate the application of Krylov space methods to the solution of shifted linear systems of the form (A+\\sigma) x - b = 0 for several values of \\sigma simultaneously, using only as many matrix-vector operations as the solution of a single system requires. We find a suitable description of the problem, allowing us to understand known algorithms in a common framework and developing shifted methods basing on short recurrence methods, most notably the CG and the BiCGstab solvers. The convergence properties of these shifted solvers are well understood and the derivation of other shifted solvers is easily possible. The application of these methods to quark propagator calculations in quenched QCD using Wilson and Clover fermions is discussed and numerical examples in this framework are presented. With the shifted CG method an optimal algorithm for staggered fermions is available.
International linear collider reference design report
Aarons, G.
2007-06-22T23:59:59.000Z
The International Linear Collider will give physicists a new cosmic doorway to explore energy regimes beyond the reach of today's accelerators. A proposed electron-positron collider, the ILC will complement the Large Hadron Collider, a proton-proton collider at the European Center for Nuclear Research (CERN) in Geneva, Switzerland, together unlocking some of the deepest mysteries in the universe. With LHC discoveries pointing the way, the ILC -- a true precision machine -- will provide the missing pieces of the puzzle. Consisting of two linear accelerators that face each other, the ILC will hurl some 10 billion electrons and their anti-particles, positrons, toward each other at nearly the speed of light. Superconducting accelerator cavities operating at temperatures near absolute zero give the particles more and more energy until they smash in a blazing crossfire at the centre of the machine. Stretching approximately 35 kilometres in length, the beams collide 14,000 times every second at extremely high energies -- 500 billion-electron-volts (GeV). Each spectacular collision creates an array of new particles that could answer some of the most fundamental questions of all time. The current baseline design allows for an upgrade to a 50-kilometre, 1 trillion-electron-volt (TeV) machine during the second stage of the project. This reference design provides the first detailed technical snapshot of the proposed future electron-positron collider, defining in detail the technical parameters and components that make up each section of the 31-kilometer long accelerator. The report will guide the development of the worldwide R&D program, motivate international industrial studies and serve as the basis for the final engineering design needed to make an official project proposal later this decade.
Willis, W.L.
1980-10-01T23:59:59.000Z
The discussion will be restricted to measurements of voltage and current. Also, although the measurements themselves should be as quantitative as possible, the discussion is rather nonquantitative. Emphasis is on types of instruments, how they may be used, and the inherent advantages and limitations of a given technique. A great deal of information can be obtained from good, clean voltage and current data. Power and impedance are obviously inherent if the proper time relationships are preserved. Often an associated, difficult-to-determine, physical event can be evaluated from the V-I data, such as a time-varying load characteristic, or the time of light emission, etc. The lack of active high voltage devices, such as 50-kV operational amplifiers, restricts measurement devices to passive elements, primarily R and C. There are a few more exotic techniques that are still passive in nature. There are several well-developed techniques for voltage measurements. These include: spark gaps; electrostatic meters; capacitive dividers; mixed RC dividers; and the electro-optic effect. Current is measured by either direct measurement of charge flow or by measuring the resulting magnetic field.
Methods For Planning Accelerated Repeated Measures Degradation Tests
Methods For Planning Accelerated Repeated Measures Degradation Tests Brian P. Weaver Statistical repeated measures degradation tests can sometimes be used to assess product or component reliability when-variable accelerated repeated measures degradation test plan when the (possibly transformed) degradation is linear
Agility metric sensitivity using linear error theory
Smith, David Matthew
2000-01-01T23:59:59.000Z
Aircraft agility metrics have been proposed for use to measure the performance and capability of aircraft onboard while in-flight. The sensitivity of these metrics to various types of errors and uncertainties is not ...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article) |govInstrumentsmfrirt Documentation ARMupwelling irradiance ARM Data Discovery BrowseMeasurements Related LinksMeasurements
Proceedings of the Oak Ridge Electron Linear Accelerator (ORELA) Workshop
Dunn, M.E.
2006-02-27T23:59:59.000Z
The Oak Ridge National Laboratory (ORNL) organized a workshop at ORNL July 14-15, 2005, to highlight the unique measurement capabilities of the Oak Ridge Electron Linear Accelerator (ORELA) facility and to emphasize the important role of ORELA for performing differential cross-section measurements in the low-energy resonance region that is important for nuclear applications such as nuclear criticality safety, nuclear reactor and fuel cycle analysis, stockpile stewardship, weapons research, medical diagnosis, and nuclear astrophysics. The ORELA workshop (hereafter referred to as the Workshop) provided the opportunity to exchange ideas and information pertaining to nuclear cross-section measurements and their importance for nuclear applications from a variety of perspectives throughout the U.S. Department of Energy (DOE). Approximately 50 people, representing DOE, universities, and seven U.S. national laboratories, attended the Workshop. The objective of the Workshop was to emphasize the technical community endorsement for ORELA in meeting nuclear data challenges in the years to come. The Workshop further emphasized the need for a better understanding of the gaps in basic differential nuclear measurements and identified the efforts needed to return ORELA to a reliable functional measurement facility. To accomplish the Workshop objective, nuclear data experts from national laboratories and universities were invited to provide talks emphasizing the unique and vital role of the ORELA facility for addressing nuclear data needs. ORELA is operated on a full cost-recovery basis with no single sponsor providing complete base funding for the facility. Consequently, different programmatic sponsors benefit by receiving accurate cross-section data measurements at a reduced cost to their respective programs; however, leveraging support for a complex facility such as ORELA has a distinct disadvantage in that the programmatic funds are only used to support program-specific measurements. As a result, ORELA has not received base funding to support major upgrades and significant maintenance operations that are essential to keep the facility in a state of readiness over the long term. As a result, ORELA has operated on a ''sub-bare-minimum'' budget for the past 10 to 15 years, and the facility has not been maintained at a level for continued reliable operation for the long term. During the Workshop, Jerry McKamy (NNSA/NA-117) used a hospital patient metaphor that accurately depicts the facility status. ORELA is currently in the intensive care unit (ICU) on life support, and refurbishment efforts are needed to get the ''patient'' off life support and out to an ordinary hospital room. McKamy further noted that the DOE NCSP is planning to fund immediate refurbishment tasks ($1.5 M over three years) to help reestablish reliable ORELA operation (i.e., move ORELA from ICU to an ordinary hospital room). Furthermore, the NCSP will work to identify and carry out the actions needed to discharge ORELA from the ''hospital'' over the next five to seven years. In accordance with the Workshop objectives, the technical community publicly endorsed the need for a reliable ORELA facility that can meet current and future nuclear data needs. These Workshop proceedings provide the formal documentation of the technical community endorsement for ORELA. Furthermore, the proceedings highlight the past and current contributions that ORELA has made to the nuclear industry. The Workshop further emphasized the operational and funding problems that currently plague the facility, thereby limiting ORELA's operational reliability. Despite the recent operational problems, ORELA is a uniquely capable measurement facility that must be part of the overall U.S. nuclear data measurement portfolio in order to support current and emerging nuclear applications. The Workshop proceedings further emphasize that ORNL, the technical community, and programmatic sponsors are eager to see ORELA reestablish reliable measurement operation and be readily available to address nuclear data challe
Evaluation of convex roof entanglement measures
Geza Toth; Tobias Moroder; Otfried Gühne
2014-10-20T23:59:59.000Z
We show a powerful method to compute entanglement measures based on convex roof constructions. In particular, our method is applicable to measures that, for pure states, can be written as low order polynomials of operator expectation values. We show how to compute the linear entropy of entanglement, the linear entanglement of assistance, and a bound on the dimension of the entanglement for bipartite systems. We discuss how to obtain the convex roof of the three-tangle for three-qubit states. We also show how to calculate the linear entropy of entanglement and the quantum Fisher information based on partial information or device independent information. We demonstrate the usefulness of our method by concrete examples
Brau, James E [Univ. of Oregon] [Univ. of Oregon
2013-04-22T23:59:59.000Z
The U.S Linear Collider Detector R&D program, supported by the DOE and NSF umbrella grants to the University of Oregon, made significant advances on many critical aspects of the ILC detector program. Progress advanced on vertex detector sensor development, silicon and TPC tracking, calorimetry on candidate technologies, and muon detection, as well as on beamline measurements of luminosity, energy, and polarization.
Investigation into electron cloud effects in the International Linear Collider positron damping ring
Crittenden, J.?A.
2014-01-01T23:59:59.000Z
cloud effects in the International Linear Collider positroninstability in the International Linear Collider positronin the proposed International Linear Collider (ILC) [3].
Dong, Feng Dan
2011-01-01T23:59:59.000Z
Stability and control of differential linear repetitiveLinear matrix inequalities in systems and control theory .and M. Phan. Linear quadratic optimal control (lql). Int.
Methods for Estimation and Control of Linear Systems Driven by Cauchy Noises
Fernandez, Javier Huerta
2013-01-01T23:59:59.000Z
prediction optimal control for a scalar linear system withPrediction Optimal Control for a Scalar Linear System withsystems in modern stochastic optimal control, algorithms like the linear
Software Productivity Measurement Using Multiple Size Measures
Bae, Doo-Hwan
Software Productivity Measurement Using Multiple Size Measures Software Productivity MeasurementContents Introduction Background Related work Motivation Productivity measurement - Measurement model - Productivity measure construction - Productivity analysis Conclusion Discussion #12;Software Engineering Lab, KAIST 3
Constructivism, measurement, mathematics Concepts of measurement
Hennig, Christian
Constructivism, measurement, mathematics Concepts of measurement Measurement and statistics Conclusion Measurement as a constructive act - a statistician's view Christian Hennig March 14, 2013 Christian Hennig Measurement as a constructive act - a statistician's view #12;Constructivism, measurement
Governance of the International Linear Collider Project
Foster, B.; /Oxford U.; Barish, B.; /Caltech; Delahaye, J.P.; /CERN; Dosselli, U.; /INFN, Padua; Elsen, E.; /DESY; Harrison, M.; /Brookhaven; Mnich, J.; /DESY; Paterson, J.M.; /SLAC; Richard, F.; /Orsay, LAL; Stapnes, S.; /CERN; Suzuki, A.; /KEK, Tsukuba; Wormser, G.; /Orsay, LAL; Yamada, S.; /KEK, Tsukuba
2012-05-31T23:59:59.000Z
Governance models for the International Linear Collider Project are examined in the light of experience from similar international projects around the world. Recommendations for one path which could be followed to realize the ILC successfully are outlined. The International Linear Collider (ILC) is a unique endeavour in particle physics; fully international from the outset, it has no 'host laboratory' to provide infrastructure and support. The realization of this project therefore presents unique challenges, in scientific, technical and political arenas. This document outlines the main questions that need to be answered if the ILC is to become a reality. It describes the methodology used to harness the wisdom displayed and lessons learned from current and previous large international projects. From this basis, it suggests both general principles and outlines a specific model to realize the ILC. It recognizes that there is no unique model for such a laboratory and that there are often several solutions to a particular problem. Nevertheless it proposes concrete solutions that the authors believe are currently the best choices in order to stimulate discussion and catalyze proposals as to how to bring the ILC project to fruition. The ILC Laboratory would be set up by international treaty and be governed by a strong Council to whom a Director General and an associated Directorate would report. Council would empower the Director General to give strong management to the project. It would take its decisions in a timely manner, giving appropriate weight to the financial contributions of the member states. The ILC Laboratory would be set up for a fixed term, capable of extension by agreement of all the partners. The construction of the machine would be based on a Work Breakdown Structure and value engineering and would have a common cash fund sufficiently large to allow the management flexibility to optimize the project's construction. Appropriate contingency, clearly apportioned at both a national and global level, is essential if the project is to be realised. Finally, models for running costs and decommissioning at the conclusion of the ILC project are proposed. This document represents an interim report of the bodies and individuals studying these questions inside the structure set up and supervised by the International Committee for Future Accelerators (ICFA). It represents a request for comment to the international community in all relevant disciplines, scientific, technical and most importantly, political. Many areas require further study and some, in particular the site selection process, have not yet progressed sufficiently to be addressed in detail in this document. Discussion raised by this document will be vital in framing the final proposals due to be published in 2012 in the Technical Design Report being prepared by the Global Design Effort of the ILC.
Palle E. T. Jorgensen
2007-07-23T23:59:59.000Z
While finite non-commutative operator systems lie at the foundation of quantum measurement, they are also tools for understanding geometric iterations as used in the theory of iterated function systems (IFSs) and in wavelet analysis. Key is a certain splitting of the total Hilbert space and its recursive iterations to further iterated subdivisions. This paper explores some implications for associated probability measures (in the classical sense of measure theory), specifically their fractal components. We identify a fractal scale $s$ in a family of Borel probability measures $\\mu$ on the unit interval which arises independently in quantum information theory and in wavelet analysis. The scales $s$ we find satisfy $s\\in \\mathbb{R}_{+}$ and $s\
Ground Vibration Measurements at LHC Point 4
Bertsche, Kirk; /SLAC; Gaddi, Andrea; /CERN
2012-09-17T23:59:59.000Z
Ground vibration was measured at Large Hadron Collider (LHC) Point 4 during the winter shutdown in February 2012. This report contains the results, including power and coherence spectra. We plan to collect and analyze vibration data from representative collider halls to inform specifications for future linear colliders, such as ILC and CLIC. We are especially interested in vibration correlations between final focus lens locations.
Error Control of Iterative Linear Solvers for Integrated Groundwater Models
Dixon, Matthew; Brush, Charles; Chung, Francis; Dogrul, Emin; Kadir, Tariq
2010-01-01T23:59:59.000Z
An open problem that arises when using modern iterative linear solvers, such as the preconditioned conjugate gradient (PCG) method or Generalized Minimum RESidual method (GMRES) is how to choose the residual tolerance in the linear solver to be consistent with the tolerance on the solution error. This problem is especially acute for integrated groundwater models which are implicitly coupled to another model, such as surface water models, and resolve both multiple scales of flow and temporal interaction terms, giving rise to linear systems with variable scaling. This article uses the theory of 'forward error bound estimation' to show how rescaling the linear system affects the correspondence between the residual error in the preconditioned linear system and the solution error. Using examples of linear systems from models developed using the USGS GSFLOW package and the California State Department of Water Resources' Integrated Water Flow Model (IWFM), we observe that this error bound guides the choice of a prac...
Non-linear system identification in flow-induced vibration
Spanos, P.D.; Zeldin, B.A. [Rice Univ., Houston, TX (United States); Lu, R. [Hudson Engineering Corp., Houston, TX (United States)
1996-12-31T23:59:59.000Z
The paper introduces a method of identification of non-linear systems encountered in marine engineering applications. The non-linearity is accounted for by a combination of linear subsystems and known zero-memory non-linear transformations; an equivalent linear multi-input-single-output (MISO) system is developed for the identification problem. The unknown transfer functions of the MISO system are identified by assembling a system of linear equations in the frequency domain. This system is solved by performing the Cholesky decomposition of a related matrix. It is shown that the proposed identification method can be interpreted as a {open_quotes}Gram-Schmidt{close_quotes} type of orthogonal decomposition of the input-output quantities of the equivalent MISO system. A numerical example involving the identification of unknown parameters of flow (ocean wave) induced forces on offshore structures elucidates the applicability of the proposed method.
Liquid cooled, linear focus solar cell receiver
Kirpich, Aaron S. (Broomall, PA)
1985-01-01T23:59:59.000Z
Separate structures for electrical insulation and thermal conduction are established within a liquid cooled, linear focus solar cell receiver for use with parabolic or Fresnel optical concentrators. The receiver includes a V-shaped aluminum extrusion having a pair of outer faces each formed with a channel receiving a string of solar cells in thermal contact with the extrusion. Each cell string is attached to a continuous glass cover secured within the channel with spring clips to isolate the string from the external environment. Repair or replacement of solar cells is effected simply by detaching the spring clips to remove the cover/cell assembly without interrupting circulation of coolant fluid through the receiver. The lower surface of the channel in thermal contact with the cells of the string is anodized to establish a suitable standoff voltage capability between the cells and the extrusion. Primary electrical insulation is provided by a dielectric tape disposed between the coolant tube and extrusion. Adjacent solar cells are soldered to interconnect members designed to accommodate thermal expansion and mismatches. The coolant tube is clamped into the extrusion channel with a releasably attachable clamping strip to facilitate easy removal of the receiver from the coolant circuit.
The Next Linear Collider Klystron Development Program*
E. Jongewaard; G. Caryotakis; C. Pearson; R. M. Phillips; D. Sprehn; A. Vlieks
2000-08-19T23:59:59.000Z
Klystrons capable of 75 MW output power at 11.4 GHz have been under development at SLAC for the last decade. The work has been part of the program to realize all the components necessary for the construction of the Next Linear Collider (NLC). The effort has produced a family of solenoid-focused 50 MW klystrons, which are currently powering a 0.5 GeV test accelerator at SLAC and several test stands, where high power components are evaluated and fundamental research is performed studying rf breakdown and dark current production. Continuing development has resulted in a Periodic Permanent Magnet (PPM) focused 50 MW klystron, tested at SLAC and subsequently contracted for manufacture by industry in England and Japan. A 75 MW version of that PPM klystron was built at SLAC and reached 75 MW, with 2.8 microsecond pulses. Based on this design, a prototype 75 MW klystron, designed for low-cost manufacture, is currently under development at SLAC, and will eventually be procured from industry in modest quantities for advanced NLC tests. Beyond these developments, the design of Multiple Beam Klystrons (MBKs) is under study at SLAC. MBKs offer the possibility of considerably lower modulator costs by producing comparable power to the klystrons now available, at much lower voltages. * This work supported by the Department of Energy under contract DE-AC03-76SF00515
Linear diffusion into a Faraday cage.
Warne, Larry Kevin; Lin, Yau Tang; Merewether, Kimball O.; Chen, Kenneth C.
2011-11-01T23:59:59.000Z
Linear lightning diffusion into a Faraday cage is studied. An early-time integral valid for large ratios of enclosure size to enclosure thickness and small relative permeability ({mu}/{mu}{sub 0} {le} 10) is used for this study. Existing solutions for nearby lightning impulse responses of electrically thick-wall enclosures are refined and extended to calculate the nearby lightning magnetic field (H) and time-derivative magnetic field (HDOT) inside enclosures of varying thickness caused by a decaying exponential excitation. For a direct strike scenario, the early-time integral for a worst-case line source outside the enclosure caused by an impulse is simplified and numerically integrated to give the interior H and HDOT at the location closest to the source as well as a function of distance from the source. H and HDOT enclosure response functions for decaying exponentials are considered for an enclosure wall of any thickness. Simple formulas are derived to provide a description of enclosure interior H and HDOT as well. Direct strike voltage and current bounds for a single-turn optimally-coupled loop for all three waveforms are also given.
Positivity of linear maps under tensor powers
Alexander Müller-Hermes; David Reeb; Michael M. Wolf
2015-02-19T23:59:59.000Z
We investigate linear maps between matrix algebras that remain positive under tensor powers, i.e., under tensoring with $n$ copies of themselves. Completely positive and completely co-positive maps are trivial examples of this kind. We show that for every $n\\in\\mathbb{N}$ there exist non-trivial maps with this property and that for two-dimensional Hilbert spaces there is no non-trivial map for which this holds for all $n$. For higher dimensions we reduce the existence question of such non-trivial "tensor-stable positive maps" to a one-parameter family of maps and show that an affirmative answer would imply the existence of NPPT bound entanglement. As an application we show that any tensor-stable positive map that is not completely positive yields an upper bound on the quantum channel capacity, which for the transposition map gives the well-known cb-norm bound. We furthermore show that the latter is an upper bound even for the LOCC-assisted quantum capacity, and that moreover it is a strong converse rate for this task.
Liquid cooled, linear focus solar cell receiver
Kirpich, A.S.
1983-12-08T23:59:59.000Z
Separate structures for electrical insulation and thermal conduction are established within a liquid cooled, linear focus solar cell receiver for use with parabolic or Fresnel optical concentrators. The receiver includes a V-shaped aluminum extrusion having a pair of outer faces each formed with a channel receiving a string of solar cells in thermal contact with the extrusion. Each cell string is attached to a continuous glass cover secured within the channel with spring clips to isolate the string from the external environment. Repair or replacement of solar cells is effected simply by detaching the spring clips to remove the cover/cell assembly without interrupting circulation of coolant fluid through the receiver. The lower surface of the channel in thermal contact with the cells of the string is anodized to establish a suitable standoff voltage capability between the cells and the extrusion. Primary electrical insulation is provided by a dielectric tape disposed between the coolant tube and extrusion. Adjacent solar cells are soldered to interconnect members designed to accommodate thermal expansion and mismatches. The coolant tube is clamped into the extrusion channel with a releasably attachable clamping strip to facilitate easy removal of the receiver from the coolant circuit.
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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article) | SciTech Connect Journal Article: X-ray line polarizationgovAboutContactsgovDataInstrumentgovMeasurements Measurement
Avoiding Communication in Dense Linear Algebra
California at Berkeley, University of
Theoretical Lower Bounds Algorithmic Innovation Optimized Implementation Improved Applications Grey Ballard 9) + · (# words) as measured in time and energy, and the relative cost of communication is increasing Grey Bandwidth 59% per year 23% per year 26% per year Energy cost comparisons Grey Ballard 6 Source: John
Non-linear transformer modeling and simulation
Archer, W.E.; Deveney, M.F.; Nagel, R.L.
1994-08-01T23:59:59.000Z
Transformers models for simulation with Pspice and Analogy`s Saber are being developed using experimental B-H Loop and network analyzer measurements. The models are evaluated for accuracy and convergence using several test circuits. Results are presented which demonstrate the effects on circuit performance from magnetic core losses eddy currents and mechanical stress on the magnetic cores.
Optimization Online - On mutual impact of numerical linear algebra ...
Marco D'Apuzzo
2008-03-12T23:59:59.000Z
Mar 12, 2008 ... On mutual impact of numerical linear algebra and large-scale optimization with focus on interior point methods.
Optimization Online - Large-Scale Linear Programming Techniques ...
Michael Wagner
2002-02-12T23:59:59.000Z
Feb 12, 2002 ... Large-Scale Linear Programming Techniques for the Design of Protein Folding Potentials. Michael Wagner (mwagner ***at*** odu.edu)
on an efficient implementation of the face algorithm for linear ...
Ping-Qi Pan
2015-04-27T23:59:59.000Z
Apr 27, 2015 ... ``ON AN EFFICIENT IMPLEMENTATION OF THE FACE ALGORITHM FOR LINEAR PROGRAMMING''. Ping-Qi Pan(panpq ***at*** seu.edu.cn).
AN EFFICIENT ALGORITHM FOR SECOND-ORDER CONE LINEAR ...
2013-01-28T23:59:59.000Z
In this paper, we consider efficient numerical algorithms to solve the SOCLCP where the linear transformation M has the. GUS property. By closely relying upon
Generating All Efficient Extreme Points in Multiple Objective Linear ...
2007-06-21T23:59:59.000Z
for generating all efficient extreme points and all efficient extreme rays of a multiple objective linear programming problem (V P). As an application we solve the ...
Optimization Online - Efficient First-Order Methods for Linear ...
James Renegar
2014-09-27T23:59:59.000Z
Sep 27, 2014 ... Efficient First-Order Methods for Linear Programming and Semidefinite Programming. James Renegar (renegar ***at*** cornell.edu). Abstract: ...
Outcome-Space Outer Approximation Algorithm for Linear ...
2007-07-20T23:59:59.000Z
Jul 20, 2007 ... Primary: 90 C29; Secondary: 90 C26. Key words. Linear multiplicative programming, global optimization problem, efficient point, outcome set.
New Semidefinite Programming Relaxations for the Linear Ordering ...
2015-01-15T23:59:59.000Z
Her model is based on the observation that linear orderings can be fully described by a series of cuts. .... [48] and input-output analysis [39]), sociology (
THE CENTRAL CURVE IN LINEAR PROGRAMMING 1. Introduction ...
2010-12-17T23:59:59.000Z
Section 2 offers an analysis of central curves in the plane, with emphasis on the dual ...... path is generated by the circuit polynomials (21) and the d linear ...
The cone condition and nonsmoothness in linear generalized Nash ...
2015-04-13T23:59:59.000Z
Apr 13, 2015 ... ?Institute of Operations Research, Karlsruhe Institute of Technology (KIT), ... In the present paper we shall assume linearity of the cost functions ...
PuLP: A Linear Programming Toolkit for Python
2011-09-05T23:59:59.000Z
Sep 5, 2011 ... Many mixed-integer linear programming (MILP) solvers are .... tions, to place facilities and assigns the production of n products to these ...
A several new mixed integer linear programming formulations for ...
2014-05-31T23:59:59.000Z
May 31, 2014 ... linear programming formulations for exploration of information flow within ... potential locations are established, and each user is assigned to ...
A new mixed integer linear programming formulation for one ...
2014-05-31T23:59:59.000Z
new mixed integer linear programming formulations for first and second prob- ... the best formulation was based on WF closest assignment constraints proposed.
Calmness of linear programs under perturbations of all data
M.J. CÃ¡novas
2014-05-26T23:59:59.000Z
May 26, 2014 ... Calmness of linear programs under perturbations of all data: ... for the optimal set mapping, as well as an operative upper bound for the ...
Optimizing minimum free-energy crossing points in solution: Linear...
Office of Scientific and Technical Information (OSTI)
Optimizing minimum free-energy crossing points in solution: Linear-response free energyspin-flip density functional theory approach Citation Details In-Document Search Title:...
Classical Simplex Methods for Linear Programming and Their ...
This paper presents a new primal dual simplex method and investigates the ... The classical simplex algorithm is the most popularly used for linear programming ...
Non-linear Seismic Soil Structure Interaction Method for Developing...
Office of Environmental Management (EM)
analysis techniques * "EFFECT ON NON-LINEAR SOIL- STRUCTURE INTERACTION DUE TO BASE SLAB UPLIFT ON THE SEISMIC RESPONSE OF A HIGH- TEMPERATURE GAS-COOLED REACTOR (HTGR)"...
Integrated coherent receivers for high-linearity microwave photonic links
2008-01-01T23:59:59.000Z
down sampling of wideband microwave signals,” J. Lightw.tunable MMI coupler for microwave photonic circuits,” inReceivers for High-Linearity Microwave Photonic Links Anand
Optimization Online - Global Optimization of Non-Linear Systems of ...
Nicholas Harkiolakis
2008-10-20T23:59:59.000Z
Oct 20, 2008 ... Global Optimization of Non-Linear Systems of Equations by Simulating the ... 10th WSEAS International Conference on Mathematical Methods, ...
Alternating local search based VNS for linear classification
2007-06-29T23:59:59.000Z
We consider the linear classification method consisting of separating two sets of points in d-space ..... code called. CPLEX 9 by way of the CPLEXINT library [4].
Linear electric field time-of-flight ion mass spectrometer
Funsten, Herbert O. (Los Alamos, NM); Feldman, William C. (Los Alamos, NM)
2008-06-10T23:59:59.000Z
A linear electric field ion mass spectrometer having an evacuated enclosure with means for generating a linear electric field located in the evacuated enclosure and means for injecting a sample material into the linear electric field. A source of pulsed ionizing radiation injects ionizing radiation into the linear electric field to ionize atoms or molecules of the sample material, and timing means determine the time elapsed between ionization of atoms or molecules and arrival of an ion out of the ionized atoms or molecules at a predetermined position.
The Klynac: An Integrated Klystron and Linear Accelerator
Potter, J. M., Schwellenbach, D., Meidinger, A.
2012-08-07T23:59:59.000Z
The Klynac concept integrates an electron gun, a radio frequency (RF) power source, and a coupled-cavity linear accelerator into a single resonant system
Chan, T.
2010-01-01T23:59:59.000Z
and H. Board, 1980. "Rock Properties and Their Effect oncalculation, and from the rock properties measured undersame point. With the linear rock properties assumed in these
Top quark anomalous couplings at the International Linear Collider
Erik Devetak; Andrei Nomerotski; Michael Peskin
2011-07-27T23:59:59.000Z
We present a study of the experimental determination of the forward-backward asymmetry in the process $e^+e^-\\to t\\bar t$ and in the subsequent $t\\to Wb$ decay, studied in the context of the International Linear Collider. This process probes the elementary couplings of the top quark to the photon, the $Z$ and the $W$ bosons at a level of precision that is difficult to achieve at hadron colliders. Measurement of the forward-backward asymmetry requires excellent $b$ quark identification and determination of the quark charge. The study reported here is performed in the most challenging all-hadronic channel $e^+e^- \\to b\\bar b q\\bar q q\\bar q$. It includes realistic details of the experimental environment, a full Monte Carlo simulation of the detector, based on the Silicon Detector concept, and realistic event reconstruction. The forward-backward asymmetries are determined to a precision of approximately 1% for each of two choices of beam polarization. We analyze the implications for the determination of the $t\\bar t Z$ and $Wtb$ couplings.
CS 521: LINEAR PROGRAMMING Fall 2009, 3 Credits INSTRUCTOR: Bahman Kalantari (kalantar (Elements of Linear Algebra, Calculus and Multivariable Calculus). GRADING: Homework assignments (written OUTLINE: Linear inequalities and the feasibility problem. The linear programming prob- lem (LP). Related
Has Hawking radiation been measured?
W. G. Unruh
2014-01-26T23:59:59.000Z
It is argued that Hawking radiation has indeed been measured and shown to posses a thermal spectrum, as predicted. This contention is based on three separate legs. The first is that the essential physics of the Hawking process for black holes can be modelled in other physical systems. The second is the white hole horizons are the time inverse of black hole horizons, and thus the physics of both is the same. The third is that the quantum emission, which is the Hawking process, is completely determined by measurements of the classical parameters of a linear physical system. The experiment conducted in 2010 fulfills all of these requirements, and is thus a true measurement of Hawking radiation.
High-gradient compact linear accelerator
Carder, B.M.
1998-05-26T23:59:59.000Z
A high-gradient linear accelerator comprises a solid-state stack in a vacuum of five sets of disc-shaped Blumlein modules each having a center hole through which particles are sequentially accelerated. Each Blumlein module is a sandwich of two outer conductive plates that bracket an inner conductive plate positioned between two dielectric plates with different thicknesses and dielectric constants. A third dielectric core in the shape of a hollow cylinder forms a casing down the series of center holes, and it has a dielectric constant different that the two dielectric plates that sandwich the inner conductive plate. In operation, all the inner conductive plates are charged to the same DC potential relative to the outer conductive plates. Next, all the inner conductive plates are simultaneously shorted to the outer conductive plates at the outer diameters. The signal short will propagate to the inner diameters at two different rates in each Blumlein module. A faster wave propagates quicker to the third dielectric core across the dielectric plates with the closer spacing and lower dielectric constant. When the faster wave reaches the inner extents of the outer and inner conductive plates, it reflects back outward and reverses the field in that segment of the dielectric core. All the field segments in the dielectric core are then in unipolar agreement until the slower wave finally propagates to the third dielectric core across the dielectric plates with the wider spacing and higher dielectric constant. During such unipolar agreement, particles in the core are accelerated with gradients that exceed twenty megavolts per meter. 10 figs.
Boardman, J. Michael
JMB File: linde, Revision A; 30 Aug 2001; Page 1 #12;2 First Order Linear: linde, Revision A; 30 Aug 2001; Page 2
Miller, Damon A.
. To experimentally measure and use an equivalent circuit representation for circuit analysis. 8. To improve circuit of Figure 1 to represent the small signal operation (i.e. in the LINEAR region) of the amplifier© 2012 Damon A. Miller Page 1 of 4 4: Transfer Functions, Parameters, and Equivalent Circuits
Borchers, Brian
Linear and Nonlinear Models for Inversion of Electrical Conductivity Pro les in Field Soils from EM to thank Dr. Jan Hendricks of the New Mexico Tech Hydrology department for allowing me to research in soil by Khe-Sing The. ii #12;ABSTRACT The EM-38 is an instrument used to measure conductivity in the soil
Paris-Sud XI, Université de
LINEAR COLLIDER TEST FACILITY: TWISS PARAMETER ANALYSIS AT THE IP/POST-IP LOCATION OF THE ATF2 BEAM through to the IP, the Twiss parameters need to be measured at the IP or PIP. Up to now, these parameters to extract the Twiss parameters and the emittance thanks to the three coefficients of the fit
Aguilar-Arevalo, A A; Bazarko, A O; Brice, S J; Brown, B C; Bugel, L; Cao, J; Coney, L; Conrad, J M; Cox, D C; Curioni, A; Djurcic, Z; Finley, D A; Fleming, B T; Ford, R; Garcia, F G; Garvey, G T; Gonzales, J; Grange, J; Green, C; Green, J A; Hart, T L; Hawker, E; Imlay, R; Johnson, R A; Karagiorgi, G; Kasper, P; Katori, T; Kobilarcik, T; Kourbanis, I; Koutsoliotas, S; Laird, E M; Linden, S K; Link, J M; Liu, Y; Louis, W C; Mahn, K B M; Marsh, W; Mauger, C; McGary, V T; McGregor, G; Metcalf, W; Meyers, P D; Mills, F; Mills, G B; Monroe, J; Moore, C D; Mousseau, J; Nelson, R H; Nienaber, P; Nowak, J A; Osmanov, B; Ouedraogo, S; Patterson, R B; Pavlovic, Z; Perevalov, D; Polly, C C; Prebys, E; Raaf, J L; Ray, H; Roe, B P; Russell, A D; Sandberg, V; Schirato, R; Schmitz, D; Shaevitz, M H; Shoemaker, F C; Smith, D; Soderberg, M; Sorel, M; Spentzouris, P; Spitz, J; Stancu, I; Stefanski, R J; Sung, M; Tanaka, H A; Tayloe, R; Tzanov, M; Van de Water, R G; Wascko, M O; White, D H; Wilking, M J; Yang, H J; Zeller, G P; Zimmerman, E D
2009-01-01T23:59:59.000Z
MiniBooNE reports the first absolute cross sections for neutral current single \\pi^0 production on CH_2 induced by neutrino and antineutrino interactions measured from the largest sets of NC \\pi^0 events collected to date. The principal result consists of differential cross sections measured as functions of \\pi^0 momentum and \\pi^0 angle averaged over the neutrino flux at MiniBooNE. We find total cross sections of (4.76+/-0.05_{stat}+/-0.40_{sys})*10^{-40} cm^2/nucleon at a mean energy of =808 MeV and (1.48+/-0.05_{stat}+/-0.14_{sys})*10^{-40} cm^2/nucleon at a mean energy of =664 MeV for \
A linear theory for control of non-linear stochastic systems
H. J. Kappen
2005-10-05T23:59:59.000Z
We address the role of noise and the issue of efficient computation in stochastic optimal control problems. We consider a class of non-linear control problems that can be formulated as a path integral and where the noise plays the role of temperature. The path integral displays symmetry breaking and there exist a critical noise value that separates regimes where optimal control yields qualitatively different solutions. The path integral can be computed efficiently by Monte Carlo integration or by Laplace approximation, and can therefore be used to solve high dimensional stochastic control problems.
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article) |govInstrumentsmfrirt Documentation ARMupwelling irradiance ARM Data Discovery BrowseMeasurements Related Links MC3E Home
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article) |govInstrumentsmfrirt Documentation ARMupwelling irradiance ARM Data Discovery BrowseMeasurements Related Links MC3E
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article) |govInstrumentsmfrirt Documentation ARMupwelling irradiance ARM Data Discovery BrowseMeasurements Related Links
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article) |govInstrumentsmfrirtA JourneygovCampaignsPajaritogovField CampaignsMidlatitude Continental ConvectivegovMeasurementsCloud
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article) |govInstrumentsmfrirtA JourneygovCampaignsPajaritogovField CampaignsMidlatitude ContinentalgovMeasurementsSurface Properties
Quantum Limits of Measurements and Uncertainty Principle
Masanao Ozawa
2015-05-19T23:59:59.000Z
In this paper, we show how the Robertson uncertainty relation gives certain intrinsic quantum limits of measurements in the most general and rigorous mathematical treatment. A general lower bound for the product of the root-mean-square measurement errors arising in joint measurements of noncommuting observables is established. We give a rigorous condition for holding of the standard quantum limit (SQL) for repeated measurements, and prove that if a measuring instrument has no larger root-mean-square preparational error than the root-mean-square measurement errors then it obeys the SQL. As shown previously, we can even construct many linear models of position measurement which circumvent this condition for the SQL.
Draa, Meredith Nicole
2010-01-01T23:59:59.000Z
Semiconductor Materials. Characteristics and Properties,"Semiconductor Materials. Characteristics and Properties,"
Measurements of the effect of a magnetic field on the transport of linear momentum in nitrogen
Larchez, Mark Edward
1968-01-01T23:59:59.000Z
torgue in the same direction. A torque in the direction opposite to this is produced by methane, et'nane, propane, butane, isobutane, 7 hydrogen, nydrogen deuteride, and ceuterium, No torque is shown by helium, argon, xenon, water vapor, carbon...
Estimation of the linear-plateau segmented regression model in the presence of measurement error
Grimshaw, Scott D.
1985-01-01T23:59:59.000Z
/c?) 4(~/o ) I (2-6) where 4(') is the standard normal density. Hence, letting = /m(YW)/o?, (2. 5) can be written as V [1 f fx(t) (( ) dz dt + f? j fx(t) 4( ) dz dt] m As the number of repeated observations is increased, 1im P [misclassif ication...] = / [lim C'(v )] f (t) dt + P [lim m(-v ) ] f (t) dt m x m x m~ by Lease B. l, = 0, since lim @(v ) = @(- ) for t & Y , m lim @(-v ) = @(~) for t & Y m Therefore, in the limit, the probability of misclassification is zero. When the join point, Y...
Anderson, Mary Elizabeth
2011-10-21T23:59:59.000Z
nor implemented in current hydrodynamic models. A series of laboratory experiments were conducted at the Haynes Coastal Engineering Laboratory and in a two-dimensional flume at Texas A and M University to investigate the influence of relative...
Shockley, Laura
2014-05-16T23:59:59.000Z
The CCR and BCC models, however, ignore “slacks.” Slacks are excess in inputs or shortfalls in outputs. In other words, a DMU has an input slack if it has an excess amount of resources needed to produce the outputs. An output slack would exist if a... DMU has plenty of resources, yet isn’t producing outputs as efficiently as it should. The CCR and BCC models can determine a DMU’s ratio efficiency, but cannot identify its slacks. Therefore Charnes et al. developed the Additive Model in 1985...
Measuring anomalous couplings in Hâ†’WW* decays at the International Linear
Office of Scientific and Technical Information (OSTI)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports to3,1,50022,3,,0,,6,1,SeparationConnect Journal Article:UsingMeson to a J/Psi and a Long-Lived Neutral
Anderson, Mary Elizabeth
2011-10-21T23:59:59.000Z
nor implemented in current hydrodynamic models. A series of laboratory experiments were conducted at the Haynes Coastal Engineering Laboratory and in a two-dimensional flume at Texas A and M University to investigate the influence of relative...
Al-Refai, Aimen Hamid
2012-01-01T23:59:59.000Z
7):447–454, 1993. [30] Matt Simkins. Upper limb joint spacealtruistic participation, Matt Simkins for his synergisticare further evaluated in Simkins’ paper [30]. In this case
Estimation of the linear-plateau segmented regression model in the presence of measurement error
Grimshaw, Scott D.
1985-01-01T23:59:59.000Z
u continuous density f , with E(x. ) & , ei - N(0, c ), and x i ' i e with x, , e. , u. . independent. 1 1 13 Y = [ Yl Y2 Y ]' (3. 2) 12 Zl Z2 Z a0 al ]' [ el e2 en] ' [ w) w2 wn' Z. =X. 1 1. if X &Y (3. 3) and if X. ) Y , i=if /n 1 m 3...-Y) III( ) ) ~m ? [E(w. . )] 2 i3 (iv) E(w, . ) = 3a P(X, ( y) 4 4 13 U 1 ~ + J (t-v) ~( ) f (t) ? Y m x + f (t-v) o(-v ) ?? + ? f (t-Y) 4(& ) f?(t) dt ~m f? (t-Y) 4( ) t?(t) dt ?m + 6~ f (t-v) @(? ) t (t) dt U Y m x + 3(2m-1)( ) f (t-v) 4...
Reduced-rank Vector Generalized Linear Models Thomas W. Yee,
Hastie, Trevor
. Keywords: Canonical correspondence analysis; Linear discriminant analysis; Neural networks; Non- parametric the reduced-rank regression idea has been applied to non-Gaussian errors is the MLM. This was proposed such as neural networks, projection pursuit regression, linear discriminant analysis, canonical correspondence
Chapter 5 -Linear Systems Math 267, Ordinary differential equations
-1). #12;Chapter 5 - Linear Systems Spring-mass-spring-mass, Brine tanks I Example 1 Two carts;Chapter 5 - Linear Systems Spring-mass-spring-mass, Brine tanks II computed. Brine (saltwater) goes from 1 at 20 gal/min and brine flows out of tank 2 at 20 gal/min. This can be written as x = - 3 10 x + 1
5-loop Konishi from linearized TBA and the XXX magnet
Janos Balog; Arpad Hegedus
2010-06-08T23:59:59.000Z
Using the linearized TBA equations recently obtained in [arXiv:1002.1711] we show analytically that the 5-loop anomalous dimension of the Konishi operator agrees with the result obtained previously from the generalized Luscher formulae. The proof is based on the relation between this linear system and the XXX model TBA equations.
Automatic Digital Surface Model (DSM) Generation from Linear Array Images
Giger, Christine
Automatic Digital Surface Model (DSM) Generation from Linear Array Images A dissertation submitted-examiner Presented by Li Zhang Zurich 2005 #12;IGP Mitteilungen Nr. 88 Automatic Digital Surface Model (DSM-906467-55-4 #12;DISS. ETH NO. 16078 Automatic Digital Surface Model (DSM) Generation from Linear Array Images
Drift tube suspension for high intensity linear accelerators
Liska, D.J.; Schamaun, R.G.; Clark, D.C.; Potter, R.C.; Frank, J.A.
1980-03-11T23:59:59.000Z
The disclosure relates to a drift tube suspension for high intensity linear accelerators. The system comprises a series of box-sections girders independently adjustably mounted on a linear accelerator. A plurality of drift tube holding stems are individually adjustably mounted on each girder.
Syllabus: EE 313 Linear Signals and Systems Spring 2012 1
Heath Jr., - Robert W.
, and biomedical engineering among others. The emphasis of this course is on signal processing tools but we Linear Signals and Systems Spring 2012 2 Course Introduction Signal processing is rich with tools will be your first introduction to the concepts of signal processing, especially processing signals with linear
Fast Development of Dense Linear Algebra Codes on Graphics Processors
Batory, Don
Fast Development of Dense Linear Algebra Codes on Graphics Processors M. JesÂ´us Zafont, Alberto that facilitates the development of dense linear algebra algorithms on graphics processors applying the FLAME methodology. The interface, built on top of the NVIDIA CUBLAS library, implements all the com- putational
AN ALTERNATIVE NOTATION FOR REPRESENTING DENSE LINEAR ALGEBRA ALGORITHMS
van de Geijn, Robert A.
AN ALTERNATIVE NOTATION FOR REPRESENTING DENSE LINEAR ALGEBRA ALGORITHMS PAOLO BIENTINESI AND ROBERT A. VAN DE GEIJN Abstract. We present a notation that allows a dense linear algebra algorithm subvectors and submatrices allowing the details of the algorithm to be the focus while hiding the intricate
On Termination of Integer Linear Loops Joel Ouaknine
Oxford, University of
On Termination of Integer Linear Loops JoÂ¨el Ouaknine Department of Computer Science Oxford con- cerns the termination of simple linear loops of the form: x u ; while Bx c do x Ax + a , where initial integer vectors u, such a loop terminates. The correctness of our algorithm relies
Multivariate Tests Based on Left-Spherically Distributed Linear Scores
Magdeburg, UniversitÃ¤t
Multivariate Tests Based on Left-Spherically Distributed Linear In this paper, a method for multivariate testing based on low-dimensional, data- dependent, linear scores approaches. In a natural way, standard problems of multivari- ate analysis thus induce the occurrence
Testing Multivariate Linear Functions: Overcoming the Generator Bottleneck
Ergun, Funda
Testing Multivariate Linear Functions: Overcoming the Generator Bottleneck Funda ErgÂ¨un \\LambdaÂ testing usually becomes more costly in the case of testing multivariate functions. In this paper we present efficient methods for selfÂtesting multivariate linear functions. We then apply these methods
MATH 100 Introduction to the Profession Linear Equations in MATLAB
Fasshauer, Greg
's input-output model in economics, electric circuit problems, the steady-state analysis of a systemMATH 100 Â Introduction to the Profession Linear Equations in MATLAB Greg Fasshauer Department;Chapter 5 of Experiments with MATLAB Where do systems of linear equations come up? fasshauer@iit.edu MATH
Transient Analysis of Linear Circuits using Constraint Logic Programming
Gilbert, David
Transient Analysis of Linear Circuits using Constraint Logic Programming Archana Shankar, David London EC1V 0HB, UK Abstract This paper describes the design of a transient analysis program for linear circuits and its implementation in a Constraint Logic Programming language, CLP(R). The transient analysis
POSITIVE ENERGY QUANTIZATION OF LINEAR DYNAMICS JAN DEREZINSKI
Boyer, Edmond
POSITIVE ENERGY QUANTIZATION OF LINEAR DYNAMICS JAN DEREZI´NSKI DEPARTMENT OF MATHEMATICAL METHODS IN PHYSICS, WARSAW UNIVERSITY, HO ZA 74, 00-682 WARSZAWA, POLAND, CHRISTIAN G´ERARD D´EPARTEMENT DE MATH the positive energy quantiza- tion of linear classical systems is described. It is separated into 3 stages
Free Oscillations of a Linear Oscillator Eugene Butikov
Butikov, Eugene
of a Linear Torsion Oscillator The linear oscillator simulated in this computer program is a balanced flywheel whose center of mass lies on the axis of rotation. Such a flywheel may consist, for example, of a rod that passes through its center. A spiral spring with one end fixed and the other attached to the flywheel
Linear-optics manipulations of photon-loss codes
Konrad Banaszek; Wojciech Wasilewski
2007-02-09T23:59:59.000Z
We discuss codes for protecting logical qubits carried by optical fields from the effects of amplitude damping, i.e. linear photon loss. We demonstrate that the correctability condition for one-photon loss imposes limitations on the range of manipulations than can be implemented with passive linear-optics networks.
High Performance Dense Linear System Solver with Soft Error Resilience
Dongarra, Jack
High Performance Dense Linear System Solver with Soft Error Resilience Peng Du, Piotr Luszczek systems, and in some scientific applications C/R is not applicable for soft error at all due to error) high performance dense linear system solver with soft error resilience. By adopting a mathematical
Optimal growth for linear processes with affine control Vincent Calvez
Paris-Sud XI, Université de
Optimal growth for linear processes with affine control Vincent Calvez Pierre Gabriel March 23, 2012 Abstract We analyse an optimal control with the following features: the dynamical system is linear the existence of an eigenvalue (in the generalized sense) for the optimal control problem. The proof is based
MODELLING OF CAVITY RECEIVER HEAT TRANSFER COMPACT LINEAR FRESNEL REFLECTOR
. This approach allows an affordable entry into renewable energy for existing coal-power producers, and allows them to meet the mandatory renewable energy targets set by the government of New South Wales . (Hu et) linear absorbers, achieving higher ground area efficiency. · Receiver is an inverted, trapezoidal, linear
On Linear Secret Sharing for Connectivity in Directed Graphs
Beimel, Amos
On Linear Secret Sharing for Connectivity in Directed Graphs Amos Beimel 1 and Anat Paskin 2 1 Dept, Israel. Abstract. In this work we study linear secret sharing schemes for sÂt connectivity in directed.e., edges) can reconstruct the secret if it contains a path from node s to node t. We prove that in every
On Linear Secret Sharing for Connectivity in Directed Graphs
Beimel, Amos
On Linear Secret Sharing for Connectivity in Directed Graphs Amos Beimel1 and Anat Paskin2 1 Dept, Israel. Abstract. In this work we study linear secret sharing schemes for s-t connectivity in directed.e., edges) can reconstruct the secret if it contains a path from node s to node t. We prove that in every
Linearly Exchangable Permits for the Efficient Control of Multiple Pollutants
California at Berkeley. University of
PWP-019 Linearly Exchangable Permits for the Efficient Control of Multiple Pollutants James B;Linear Exchangeable Permits for the Ecient Control of Multiple Pollutants James B. Bushnell University of pollutants. Often a new polluter is required to purchase an "o-set" from an existing polluter prepared
An active interferometer-stabilization scheme with linear phase control
Potma, Eric Olaf
An active interferometer-stabilization scheme with linear phase control Vishnu Vardhan not require modulation of the interfering beams and relies on an error signal which is linearly related scheme enables adjustable phase control with 20 ms switching times in the range from 0.02 radians to 6