Sample records for wall crossing formula

  1. Moduli space and wall-crossing formulae in higher-rank gauge theories

    NASA Astrophysics Data System (ADS)

    Chen, Heng-Yu; Dorey, Nick; Petunin, Kirill

    2011-11-01

    We study the interplay between wall-crossing in four-dimensional gauge theory and instanton contributions to the moduli space metric of the same theory on mathbb{R}3× S1. We consider mathcal{N}=2 SUSY Yang-Mills with gauge group SU(n) and focus on walls of marginal stability which extend to weak coupling. By comparison with explicit field theory results we verify the Kontsevich-Soibelman formula for the change in the BPS spectrum at these walls and check the smoothness of the metric in the corresponding compactified theory. We also verify in detail the predictions for the one instanton contribution to the metric coming from the non-linear integral equations of Gaiotto, Moore and Nietzke.

  2. Wall-crossing made smooth

    NASA Astrophysics Data System (ADS)

    Pioline, Boris

    2015-04-01

    In D = 4 , theories on , the index receives contributions not only from single-particle BPS states, counted by the BPS indices, but also from multi-particle states made of BPS constituents. In a recent work [1], a general formula expressing the index in terms of the BPS indices was proposed, which is smooth across walls of marginal stability and reproduces the expected single-particle contributions. In this note, I analyze the two-particle contributions predicted by this formula, and show agreement with the spectral asymmetry of the continuum of scattering states in the supersymmetric quantum mechanics of two non-relativistic, mutually non-local dyons. This may provide a physical justification for the error function profile used in the mathematics literature on indefinite theta series, and in the physics literature on black hole partition functions.

  3. Wall Crossing, Discrete Attractor Flow and Borcherds Algebra

    E-print Network

    Miranda C. N. Cheng; Erik P. Verlinde

    2008-10-07

    The appearance of a generalized (or Borcherds-) Kac-Moody algebra in the spectrum of BPS dyons in N=4, d=4 string theory is elucidated. From the low-energy supergravity analysis, we identify its root lattice as the lattice of the T-duality invariants of the dyonic charges, the symmetry group of the root system as the extended S-duality group PGL(2,Z) of the theory, and the walls of Weyl chambers as the walls of marginal stability for the relevant two-centered solutions. This leads to an interpretation for the Weyl group as the group of wall-crossing, or the group of discrete attractor flows. Furthermore we propose an equivalence between a "second-quantized multiplicity" of a charge- and moduli-dependent highest weight vector and the dyon degeneracy, and show that the wall-crossing formula following from our proposal agrees with the wall-crossing formula obtained from the supergravity analysis. This can be thought of as providing a microscopic derivation of the wall-crossing formula of this theory.

  4. Wall-Crossing in Genus Zero Landau-Ginzburg Theory

    E-print Network

    Dustin Ross; Yongbin Ruan

    2015-01-08

    We study genus zero wall-crossing for a family of moduli spaces introduced recently by Fan-Farvis-Ruan. The family has a wall and chamber structure relative to a positive rational parameter. For a Fermat quasi-homogeneous polynomial W (not necessarily Calabi-Yau type), we study natural generating functions of invariants associated to these moduli spaces. Our wall-crossing formula relates the generating functions by showing that they all lie on the same Lagrangian cone associated to the Fan-Jarvis-Ruan-Witten theory of W. For arbitrarily small parameter, a specialization of our generating function is a hypergeometric series called the big I-function which determines the entire Lagrangian cone. As a special case of our wall-crossing, we obtain a new geometric interpretation of the Landau-Ginzburg mirror theorem.

  5. Instanton correction, wall crossing and mirror symmetry of Hitchin's moduli spaces

    E-print Network

    Lu, Wenxuan

    2011-01-01

    We study two instanton correction problems of Hitchin's moduli spaces along with their wall crossing formulas. The hyperkahler metric of a Hitchin's moduli space can be put into an instanton-corrected form according to ...

  6. On Real Intrinsic Wall Crossings

    E-print Network

    Stefano Bellucci; Bhupendra Nath Tiwari

    2010-11-17

    We study moduli space stabilization of a class of BPS configurations from the perspective of the real intrinsic Riemannian geometry. Our analysis exhibits a set of implications towards the stability of the D-term potentials, defined for a set of abelian scalar fields. In particular, we show that the nature of marginal and threshold walls of stabilities may be investigated by real geometric methods. Interestingly, we find that the leading order contributions may easily be accomplished by translations of the Fayet parameter. Specifically, we notice that the various possible linear, planar, hyper-planar and the entire moduli space stabilities may easily be reduced to certain polynomials in the Fayet parameter. For a set of finitely many real scalar fields, it may be further inferred that the intrinsic scalar curvature defines the global nature and range of vacuum correlations. Whereas, the underlying moduli space configuration corresponds to a non-interacting basis at the zeros of the scalar curvature, where the scalar fields become un-correlated. The divergences of the scalar curvature provide possible phase structures, viz., wall of stability, phase transition, if any, in the chosen moduli configuration. The present analysis opens up a new avenue towards the stabilizations of gauge and string moduli.

  7. Framed BPS states, moduli dynamics, and wall-crossing

    NASA Astrophysics Data System (ADS)

    Lee, Sungjay; Yi, Piljin

    2011-04-01

    We formulate supersymmetric low energy dynamics for BPS dyons in strongly-coupled N = 2 Seiberg-Witten theories, and derive wall-crossing formulae thereof. For BPS states made up of a heavy core state and n probe (halo) dyons around it, we derive a reliable supersymmetric moduli dynamics with 3 n bosonic coordinates and 4 n fermionic superpartners. Attractive interactions are captured via a set of supersymmetric potential terms, whose detail depends only on the charges and the special Kähler data of the underlying N = 2 theories. The small parameters that control the approximation are not electric couplings but the mass ratio between the core and the probe, as well as the distance to the marginal stability wall where the central charges of the probe and of the core align. Quantizing the dynamics, we construct BPS bound states and derive the primitive and the semi-primitive wall-crossing formulae from the first principle. We speculate on applications to line operators and Darboux coordinates, and also about extension to supergravity setting.

  8. 8. VIEW OF CROSS SECTION OF THE EASTERNMOST WALL SEGMENT ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    8. VIEW OF CROSS SECTION OF THE EASTERNMOST WALL SEGMENT THAT SHOWS THE TRENCHING AND 1960 PIPELINE CORRIDOR BETWEEN THE WALL SEGMENTS, LOOKING WEST-NORTHWEST - Rock Wall, North side of Battle Creek Canyon, Shingletown, Shasta County, CA

  9. Quantum calculations for the photodetachment cross sections of H- located between two walls

    NASA Astrophysics Data System (ADS)

    Zhao, H. J.; Ma, Z. J.; Du, M. L.

    2015-06-01

    We re-investigate the photodetachment cross sections of H- in a quantum well consisting of two parallel hard walls using a quantum approach. The formulas for the cross sections are explicitly derived and compared with those derived by using closed-orbit theory (G.C. Yang, et al., Physica B 404 (2009) 1576 [15]). The present quantum results confirm the staircase pattern of the cross sections obtained earlier when the polarization of photons is parallel to the normal direction of the walls. However, we find that when the polarization is perpendicular to the normal direction of the walls, oscillations in the cross sections in the present quantum calculations are still present in contrast to the predictions of closed-orbit theory. The differences in the two results are large enough to be observable.

  10. Scalar Moduli, Wall Crossing and Phenomenological Predictions

    NASA Astrophysics Data System (ADS)

    Bellucci, Stefano; Tiwari, Bhupendra Nath

    2012-09-01

    We present the scalar moduli stabilization from the perspective of the real intrinsic geometry. In this paper, we describe the physical nature of the vacuum moduli fluctuations of an arbitrary Fayet configuration. For finitely many Abelian scalar fields, we show that the framework of the real intrinsic geometry investigates the mixing between the marginal and threshold vacua. Interestingly, we find that the phenomena of wall crossing and the search of the stable vacuum configurations, pertaining to D-term and F-term scalar moduli, can be accomplished for the Abelian charges. For given vacuum expectation values of the moduli scalars, we provide phenomenological aspects of the vacuum fluctuations and phase transitions in the supersymmetry breaking configurations.

  11. A new simple formula for fusion cross-sections of light nuclei

    Microsoft Academic Search

    Xing Z. Li; Qing M. Wei; Bin Liu

    2008-01-01

    The recent ENDF\\/B VII.0 data are compared with the fitting formula (NRL handbook---Plasma Formulary). The differences between experimental data and the fitting formula for three major fusion cross-sections reveal the need for a replacement to the old 5-parameter fitting formula. The new formula in this paper has only 3 parameters, but its fit with the experimental data is greatly improved

  12. A new simple formula for fusion cross-sections of light nuclei

    Microsoft Academic Search

    Xing Z. Li; Qing M. Wei; Bin Liu

    2008-01-01

    The recent ENDF\\/B VII.0 data are compared with the fitting formula (NRL handbook—Plasma Formulary). The differences between experimental data and the fitting formula for three major fusion cross-sections reveal the need for a replacement to the old 5-parameter fitting formula. The new formula in this paper has only 3 parameters, but its fit with the experimental data is greatly improved

  13. Poincaré polynomials for Abelian symplectic quotients of pure $r$-qubits via wall-crossings

    E-print Network

    Saeid Molladavoudi; Hishamuddin Zainuddin

    2015-06-17

    In this paper, we compute a recursive wall-crossing formula for the Poincar\\'e polynomials and Euler characteristics of Abelian symplectic quotients of a complex projective manifold under a special effective action of a torus with non-trivial characters. An analogy can be made with the space of pure states of a composite quantum system containing $r$ quantum bits under action of the maximal torus of Local Unitary operations.

  14. Repulsive interaction of N eel walls, and the internal length scale of the cross{tie wall

    E-print Network

    Otto, Felix

    Repulsive interaction of N#19;eel walls, and the internal length scale of the cross{tie wall;eel walls and cross{tie walls are two structures commonly seen in ferro- magnetic thin #12;lms studies (a) the repulsive interaction of one{dimensional N#19;eel walls; and (b) the inter- nal length

  15. EFFECTS OF JOINT DETAILS ON THE BEHAVIOR OF CROSS WALLS

    Microsoft Academic Search

    Hsii-Sheng Hsieh; Yi-Chih Lu; Ting-Mei Lin

    Inclinometer readings of a deep excavation project are presented in this paper to show that joint details could have significant effects on the behavior of cross\\/buttress walls. It is found that both T-shaped and clean contact joints are capable of limiting the lateral displacement of perimeter diaphragm wall to less than 10 mm in this case. On the other hand,

  16. Cross Section; Half Longitudinal Section Showing Middle Wall Reinforced with ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Cross Section; Half Longitudinal Section Showing Middle Wall Reinforced with Arch; Part Long Section Showing Inside of External Side Wall; East Entrance; Part Side South External; Part Reflected Plan of Soffite of Floor; Part Reflected Plan of Soffite of Roof - Blenheim Covered Bridge, Spanning Schoharie River, North Blenheim, Schoharie County, NY

  17. Cross-sectional analysis of the chest and abdominal wall

    SciTech Connect

    Wechsler, R.J.

    1989-01-01

    This book covers the musculoskeletal envelope of the internal viscera as seen in cross section on computed tomographic (CT), magnetic resonance (MR), and ultrasound images. The contents proceed on the basis of anatomic areas, from the axilla and supraclavicular fossa, through the thoracic and abdominal wall and paraspinal musculature, to the glutei. Normal anatomic structure is described. Specific disease processes-such as inflammatory lymphadenitis, primary tumors, and vascular diseases-are covered.

  18. Examination of fusion cross sections and fusion oscillations with a generalized Wong formula

    NASA Astrophysics Data System (ADS)

    Rowley, N.; Hagino, K.

    2015-04-01

    We re-examine the well-known Wong formula for heavy-ion fusion cross sections. Although this celebrated formula yields almost-exact results for single-channel calculations for relatively heavy systems such as 16O+144Sm , it tends to overestimate the cross section for light systems such as 12C+12C . We generalize the formula to take account of the energy dependence of the barrier parameters and show that the energy-dependent version gives results practically indistinguishable from a full quantal calculation. We then examine the deviations arising from the discrete nature of the intervening angular momenta, whose effect can lead to an oscillatory contribution to the excitation function. We recall some compact, analytic expressions for these oscillations and highlight the important physical parameters that give rise to them. Oscillations in symmetric systems are discussed, as are systems where the target and projectile identities can be exchanged via a strong transfer channel.

  19. (p,?) Reaction Cross Sections Calculations of Fe and Ni Target Nuclei Using New Developed Semi-empirical Formula

    NASA Astrophysics Data System (ADS)

    Tel, E.; Akca, S.; Kara, A.; Yi?it, M.; Ayd?n, A.

    2013-10-01

    Iron (Fe) and nickel (Ni) are important fusion structural materials in reactor technology. The gas production in the metallic structure arising from many different types of nuclear reactions has been a significant damage mechanism in structural components of fusion reactors. The hydrogen and its isotopes at high temperatures leave out of the metallic lattice but the alpha (?) particles that remain in the lattice generate helium (He) gas bubbles. In other words, the ? particles can cause serious changes in the physical and mechanical properties of the fusion structural materials. In this study, the excitation functions of 54,57Fe(p,?) and 58,60,61,64Ni(p,?) reactions have been investigated in the incident proton energy range of 10-40 MeV to estimate the radiation damage effects on fusion structural materials used in the construction of the first walls and core of the reactor. The calculations of (p,?) reaction cross sections on 54,57Fe and 58,60,61,64Ni have been made by using PCROSS code and CEM95 code. The full exciton and cascade exciton model (CEM95) for pre-equilibrium calculations and Weisskopf-Ewing model for equilibrium calculations are used. Besides, the semi-empirical cross section formula with new coefficient obtained by Tel et al. (Pramana J Phys 74:931-943, 2010) has been applied for (p,?) reactions at 17.9 MeV proton incident energy.

  20. One-loop fluctuation-dissipation formula for bubble-wall velocity

    SciTech Connect

    Arnold, P. (Department of Physics, FM-15, University of Washington, Seattle, Washington 98195 (United States))

    1993-08-15

    The limiting bubble-wall velocity during a first-order electroweak phase transition is of interest in scenarios for electroweak baryogenesis. Khlebnikov has recently proposed an interesting method for computing this velocity based on the fluctuation-dissipation theorem. I demonstrate that at one-loop order this method is identical to simple, earlier techniques for computing the wall velocity based on computing the friction from particles reflecting off or transmitting through the wall in the ideal gas ( thin-wall'') limit.

  1. New formulas for the (-2 ) moment of the photoabsorption cross section, ?-2

    NASA Astrophysics Data System (ADS)

    Orce, J. N.

    2015-06-01

    Two new formulas for the (-2 ) moment of the photoabsorption cross section, ?-2, have been determined, respectively, from the 1988 photoneutron evaluation of Dietrich and Berman and a mass-dependent symmetry energy coefficient, asym(A ) . The data for A ?50 follow, with a RMS deviation of 6%, the power law ?-2=2.4 A5 /3? b /MeV , which is in agreement with Migdal's calculation of ?-2=2.25 A5 /3? b /MeV based on the hydrodynamic model and the ?-2 sum rule. The additional inclusion of asym(A ) provides a deeper insight into the nuclear polarization of A ?10 nuclei.

  2. One-loop fluctuation-dissipation formula for bubble-wall velocity

    SciTech Connect

    Arnold, P.

    1993-06-01

    The limiting bubble wall velocity during a first-order electroweak phase transition is of interest in scenarios for electroweak baryogenesis. Khlebnikov has recently proposed an interesting method for computing this velocity based on the fluctuation-dissipation theorem. It is demonstrated that at one-loop order this method is identical to simple, earlier techniques for computing the wall velocity based on computing the friction from particles reflecting off or transmitting through the wall in the ideal gas limit.

  3. Wall-crossing invariants: from quantum mechanics to knots

    NASA Astrophysics Data System (ADS)

    Galakhov, D.; Mironov, A.; Morozov, A.

    2015-03-01

    We offer a pedestrian-level review of the wall-crossing invariants. The story begins from the scattering theory in quantum mechanics where the spectrum reshuffling can be related to permutations of S-matrices. In nontrivial situations, starting from spin chains and matrix models, the S-matrices are operatorvalued and their algebra is described in terms of R- and mixing (Racah) U-matrices. Then the Kontsevich-Soibelman (KS) invariants are nothing but the standard knot invariants made out of these data within the Reshetikhin-Turaev-Witten approach. The R and Racah matrices acquire a relatively universal form in the semiclassical limit, where the basic reshufflings with the change of moduli are those of the Stokes line. Natural from this standpoint are matrices provided by the modular transformations of conformal blocks (with the usual identification R = T and U = S), and in the simplest case of the first degenerate field (2, 1), when the conformal blocks satisfy a second-order Shrödinger-like equation, the invariants coincide with the Jones ( N = 2) invariants of the associated knots. Another possibility to construct knot invariants is to realize the cluster coordinates associated with reshufflings of the Stokes lines immediately in terms of check-operators acting on solutions of the Knizhnik-Zamolodchikov equations. Then the R-matrices are realized as products of successive mutations in the cluster algebra and are manifestly described in terms of quantum dilogarithms, ultimately leading to the Hikami construction of knot invariants.

  4. In-vitro fermentability of cell walls as influenced by lignin composition and cross-linking.

    Technology Transfer Automated Retrieval System (TEKTRAN)

    We assessed how diverse modifications in lignin composition and reductions in ferulate-lignin cross-linking influence the degradability of cell walls. Cell walls from nonlignified maize cell suspensions were artificially lignified with varying ratios of normal monolignols (coniferyl and sinapyl alco...

  5. The Study of ( n, d) Reaction Cross Sections for New Evaluated Semi-Empirical Formula Using Optical Model

    NASA Astrophysics Data System (ADS)

    Bölükdemir, M. H.; Tel, E.; Okuducu, ?.; Ayd?n, A.

    2009-12-01

    Nuclear fusion can be one of the most attractive sources of energy from the viewpoint of safety and minimal environmental impact. The neutron scattering cross sections data have a critical importance on fusion reactor (and in the fusion-fission hybrid) reactors. So, the study of the systematic of ( n, d) etc., reaction cross sections is of great importance in the definition of the excitation function character for reaction taking place on various nuclei at energies up to 20 MeV. In this study, non-elastic cross-sections have been calculated by using optical model for ( n, d) reactions at 14-15 MeV energy. The excitation function character and reaction Q-values depending on the asymmetry term effect for the ( n, d) reaction have been investigated. New coefficients have been obtained and the semi-empirical formulas including optical model non-elastic effects by fitting two parameters for the ( n, d) reaction cross-sections have been suggested. The obtained cross-section formulas with new coefficients have been compared with the available experimental data and discussed.

  6. Jet through a wall protrusion in a cross-flow

    NASA Technical Reports Server (NTRS)

    Hong, S. K.; Murthy, S. N. B.; Warner, C. F.

    1984-01-01

    The flow interactions between a jet issuing out of a protrusion in a wall and a crosswise flow are of interest because of the manner in which the spreading and mixing of the jet are affected by the flow separation, formation of vortices and recirculation zones and the associated flow instabilities. In combustors and in aircraft void spaces adjoining fuel tanks such interactions determine flame stability and propagation characteristics. Results from flow visualization and from predictions based on a three-dimensional viscous flow code are utilized to show the effects of several flow and geometrical parameters on the processes occuring in the vicinity of the protrusion and the jet.

  7. A computational model for three-dimensional incompressible wall jets with large cross flow

    NASA Technical Reports Server (NTRS)

    Murphy, W. D.; Shankar, V.; Malmuth, N. D.

    1979-01-01

    A computational model for the flow field of three dimensional incompressible wall jets prototypic of thrust augmenting ejectors with large cross flow is presented. The formulation employs boundary layer equations in an orthogonal curvilinear coordinate system. Simulation of laminar as well as turbulen wall jets is reported. Quantification of jet spreading, jet growth, nominal separation, and jet shrink effects due to corss flow are discussed.

  8. A WALL-CROSSING FORMULA FOR GROMOV-WITTEN INVARIANTS UNDER VARIATION OF GIT QUOTIENT

    E-print Network

    Woodward, Christopher

    /G has cohomologically trivial fibers and so HG(X) = H(X/G) by the Serre spectral sequence. If X variety X equipped with a polarization (ample equivariant line bundle) has coordinate ring equal to the G with a reasonable homotopy type then the equivariant cohomology HG(X) is the cohomology H(EG ×G X) of EG ×G X

  9. Isodityrosine, a new cross-linking amino acid from plant cell-wall glycoprotein.

    PubMed Central

    Fry, S C

    1982-01-01

    1. Cell-wall hydrolysates from calli of all higher plants tested contained a new phenolic amino acid for which the trivial name isodityrosine is proposed. Isodityrosine was shown to be an oxidatively coupled dimer of tyrosine with the two tyrosine units linked by a diphenyl ether bridge. 2. The amount of isodityrosine in sodium dodecyl sulphate-insoluble cell-wall preparations was proportional to the amount of hydroxyproline. 3. Acidified chlorite split the diphenyl ether bridge of isodityrosine, and concomitantly solubilized the cell-wall glycoprotein. 4. Dithiothreitol inhibited isodityrosine synthesis in vivo, and suppressed in parallel the covalent binding of newly synthesized protein in the cell wall. 5. It is suggested that isodityrosine is an inter-polypeptide cross-link responsible for the insolubility of plant cell-wall glycoprotein. Images Fig. 4. PMID:7115340

  10. The abdominal wall lumps and bumps: cross-sectional imaging spectrum.

    PubMed

    Virmani, Vivek; Sethi, Vineeta; Fasih, Najla; Ryan, John; Kielar, Ania

    2014-02-01

    This article focuses on the cross-sectional imaging spectrum of abnormalities that affect the abdominal wall, with emphasis on magnetic resonance imaging (MRI). Cross-sectional imaging is valuable for diagnosing and evaluating the extent of abdominal-wall masses. With the increasing use of MRI, it is often possible to reach a diagnosis or narrow the differential diagnosis, thereby guiding effective management. Neoplastic and non-neoplastic pathologies will be illustrated, and the distinctive imaging characteristics of these entities will be highlighted. PMID:22884230

  11. A Low Cross-Polarization Smooth-Walled Horn with Improved Bandwidth

    NASA Technical Reports Server (NTRS)

    Zeng, Lingzhen; Bennett, Charles L.; Chuss, David T.; Wollack, Edward J.

    2009-01-01

    Corrugated feed horns offer excellent beam symmetry, main beam efficiency, and cross-polar response over wide bandwidths, but can be challenging to fabricate. An easier-to-manufacture smooth-walled feed is explored that approximates these properties over a finite bandwidth. The design, optimization and measurement of a monotonically-profiled, smooth-walled scalar feedhorn with a diffraction-limited approximately 7 degrees full width at half maximum (FWHM) is presented. The feed was demonstrated to have low cross polarization (<-30 dB) across the frequency range 33-45 GHz (30% fractional bandwidth). A return loss better than -28 dB was measured across the band.

  12. A Low Cross-Polarization Smooth-Walled Horn with Improved Bandwidth

    NASA Technical Reports Server (NTRS)

    Zeng, Lingzhen; Bennette, Charles L.; Chuss, David T.; Wollack, Edward J.

    2009-01-01

    Corrugated feed horns offer excellent beam symmetry, main beam efficiency, and cross-polar response over wide bandwidths, but can be challenging to fabricate. An easier-to-manufacture smooth-walled feed is explored that approximates these properties over a finite bandwidth. The design, optimization and measurement of a monotonically-profiled, smooth-walled scalar feedhorn with a diffraction-limited approx. 14deg FWHM beam is presented. The feed was demonstrated to have low cross polarization (<-30 dB) across the frequency range 33-45 GHz (30% fractional bandwidth). A power reflection below -28 dB was measured across the band.

  13. Evidence for Luttinger-Liquid Behavior in Crossed Metallic Single-Wall Nanotubes

    Microsoft Academic Search

    B. Gao; A. Komnik; R. Egger; D. C. Glattli; A. Bachtold

    2004-01-01

    Transport measurements through crossed metallic single-wall nanotubes are presented. We observe a zero-bias anomaly in one tube which is suppressed by a current flowing through the other nanotube. These results are compared with a Luttinger-liquid model which takes into account electrostatic tube-tube coupling together with crossing-induced backscattering processes. Explicit solution of a simplified model is able to describe qualitatively the

  14. Cross-Polarization Modulation Domain Wall Solitons for WDM Signals in Birefringent Optical Fibers

    Microsoft Academic Search

    Stefan Wabnitz

    2009-01-01

    Nonlinear cross-polarization modulation between two wavelength multiplexed channels propagating in an elliptically birefringent optical fiber leads to polarization domain wall solitons. These solitons represent a switching of the polarization of both waves between two stable orthogonal states. The potential application of polarization domains to nonlinear loss-free polarizers is described.

  15. Current-induced domain wall motion in permalloy nanowires with a rectangular cross-section

    SciTech Connect

    Ai, J. H.; Miao, B. F.; Sun, L.; You, B.; Hu, An; Ding, H. F. [National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, 22 Hankou Rd., Nanjing 210093 (China)

    2011-11-01

    We performed micromagnetic simulations of the current-induced domain wall motion in permalloy nanowires with rectangular cross-section. In the absence of the nonadiabatic spin-transfer term, a threshold current, J{sub c} is required to drive the domain wall moving continuously. We find that J{sub c} is proportional to the maximum cross product of the demagnetization field and magnetization orientation of the domain wall and the domain wall width. With varying both the wire thickness and width, a minimum threshold current in the order of 10{sup 6} A/cm{sup 2} is obtained when the thickness is equivalent to the wire width. With the nonadiabatic spin-transfer term, the calculated domain wall velocity {nu} equals to the adiabatic spin transfer velocity u when the current is far above the Walker limit J{sub w}. Below J{sub w}, {nu}=({beta}/{alpha})u, where {beta} is the nonadiabatic parameter and {alpha} is the damping factor. For different {beta}, we find the Walker limit can be scaled as J{sub w}=({alpha}/{beta}-{alpha})J{sub c}. Our simulations agree well with the one dimensional analytical calculation, suggesting the findings are the general behaviors of the systems in this particular geometry.

  16. Sound insulation of brick diaphragm walls—II. Vibrational energy flow through the cross-ribs

    Microsoft Academic Search

    B. M. Gibbs; R. D. Sullivan

    1995-01-01

    A description of an investigation of the sound insulation of brick diaphragm walls by scale-model measurement and Statistical Energy Analysis was given in an earlier companion paper [B. M. Gibbs and J. Lewis, Building and Environment 26, 165–172 (1991)]. In the present paper, the acoustic bridging effect of the cross-ribs is considered. It is shown that existing simple theory for

  17. Time-resolved magnetization dynamics of cross-tie domain walls in permalloy microstructures

    Microsoft Academic Search

    J. Miguel; J. Sánchez-Barriga; D. Bayer; J. Kurde; B. Heitkamp; M. Piantek; F. Kronast; M. Aeschlimann; H. A. Dürr; W. Kuch

    2009-01-01

    We report on a picosecond time-resolved x-ray magnetic circular dichroic-photoelectron emission microscopy study of the evolution of the magnetization components of a microstructured permalloy platelet comprising three cross-tie domain walls. A laser-excited photoswitch has been used to apply a triangular 80 Oe, 160 ps magnetic pulse. Micromagnetic calculations agree well with the experimental results, both in time and frequency, illustrating

  18. Skyrme-force dependence of fusion cross-sections using Wong formula in semiclassical formalism

    E-print Network

    Kumar, Raj

    2010-01-01

    we use the nuclear proximity potential obtained recently for the Skyrme nucleus-nucleus interaction in the semiclassical extended Thomas Fermi (ETF) approach using Skyrme energy density formalism (SEDF) under frozen-density (sudden-without-exchange) approximation, and $\\Phi$=0$^0$. This method allows the barrier modifications by using different Skyrme forces, since a different Skyrme force would mean different barrier characteristics, and possibly a different force for different reaction cross-section.

  19. Inversion formula for the internucleus potential using sub-barrier fusion cross sections

    SciTech Connect

    Balantekin, A.B.; Koonin, S.E.; Negele, J.W.

    1983-10-01

    Subject to the assumption that sub-barrier fusion is described by an effective one-dimensional energy-independent local potential barrier, the Jeffreys-Wentzel-Kramers-Brillouin approximation for the fusion cross sections is inverted to determine this effective potential. Potential barriers, with their associated experimental errors, are presented for /sup 13/C+ /sup 13/C and /sup 40/Ca+ /sup 40/Ca, and the assumption of a local effective potential is shown to be inadequate for /sup 64/Ni+ /sup 64/Ni.

  20. A Transglutaminase Immunologically Related to Tissue Transglutaminase Catalyzes Cross-Linking of Cell Wall Proteins in Chlamydomonas reinhardtii

    Microsoft Academic Search

    Sabine Waffenschmidt; Thomas Kusch; Jeffrey Paul Woessner

    1999-01-01

    The addition of primary amines to the growth medium of the unicellular green alga Chlamydomonas reinhardtii disrupts cell wall assembly in both vegetative and zygotic cells. Primary amines are competitive inhibitors of the protein-cross-linking activity of trans- glutaminases. Two independent assays for transglutaminase con- firmed a burst of extracellular activity during the early stages of cell wall formation in both

  1. A cinnamoyl esterase from Aspergillus niger can break plant cell wall cross-links without release of free diferulic acids

    Microsoft Academic Search

    Maria-Teresa Garcia-Conesa; Paul A. Kroon; John Ralph; Fred A. Mellon; Ian J. Colquhoun; Luc Saulnier; Jean-Francois Thibault; Gary Williamson

    1999-01-01

    A cinnamoyl esterase, ferulic acid esterase A, from Aspergillus niger releases ferulic acid and 5-5- and 8-O-4-dehydrodiferulic acids from plant cell walls. The breakage of one or both ester bonds from dehydrodimer cross-links between plant cell wall polymers is essential for optimal action of carbohydrases on these substrates, but it is not known if cinnamoyl esterases can break these cross-links

  2. A Simple Formula for the Third Integral of Motion of Disk-crossing Stars in the Galaxy

    NASA Astrophysics Data System (ADS)

    Vieira, Ronaldo S. S.; Ramos-Caro, Javier

    2014-05-01

    We present a simple analytical formula for an approximated third integral of motion associated with nearly equatorial orbits in the Galaxy: I_{3}=Z\\Sigma _{I}^{1/3}, where Z(R) is the vertical amplitude of the orbit at galactocentric distance R and ? I (R) is the integrated dynamical surface mass density of the disk, a quantity which has recently become measurable. We also suggest that this relation is valid for disk-crossing orbits in a wide variety of axially symmetric galactic models, which range from razor-thin disks to disks with non-negligible thickness, whether or not the system includes bulges and halos. We apply our formalism to a Miyamoto-Nagai model and to a realistic model for the Milky Way. In both cases, the results provide fits for the shape of nearly equatorial orbits which are better than the corresponding curves obtained by the usual adiabatic approximation when the orbits have vertical amplitudes comparable to the disk's scale height. We also discuss the role of this approximate third integral of motion in modified theories of gravity.

  3. Cross sections for ionization of K, L and M shells of atoms by impact of electrons and positrons with energies up to 1 GeV: Analytical formulas

    NASA Astrophysics Data System (ADS)

    Bote, David; Salvat, Francesc; Jablonski, Aleksander; Powell, Cedric J.

    2009-11-01

    Analytical formulas are presented for the easy calculation of cross sections for ionization of K, L and M shells of neutral atoms by impact of electrons and positrons with kinetic energies up to 1 GeV. Each formula contains a number of parameters that are characteristic of the element, the active electron shell and the projectile particle. The values of these parameters were determined by fitting the cross section values in an extensive database that was calculated recently by means of a composite algorithm that combines the distorted-wave and plane-wave Born approximations. Tables of parameter values are given for all elements, from hydrogen (Z=1) to einsteinium (Z=99). The proposed analytical expressions yield ionization cross sections that agree with those in the numerical database to within about 1%, except for projectiles with near-threshold energies.

  4. Cross sections for ionization of K, L and M shells of atoms by impact of electrons and positrons with energies up to 1 GeV: Analytical formulas

    SciTech Connect

    Bote, David [Facultat de Fisica (ECM and ICC), Universitat de Barcelona, Diagonal 647, 08028 Barcelona (Spain); Salvat, Francesc [Facultat de Fisica (ECM and ICC), Universitat de Barcelona, Diagonal 647, 08028 Barcelona (Spain)], E-mail: cesc@ecm.ub.es; Jablonski, Aleksander [Institute of Physical Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224 Warsaw (Poland); Powell, Cedric J. [Surface and Microanalysis Science Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-8370 (United States)

    2009-11-15

    Analytical formulas are presented for the easy calculation of cross sections for ionization of K, L and M shells of neutral atoms by impact of electrons and positrons with kinetic energies up to 1 GeV. Each formula contains a number of parameters that are characteristic of the element, the active electron shell and the projectile particle. The values of these parameters were determined by fitting the cross section values in an extensive database that was calculated recently by means of a composite algorithm that combines the distorted-wave and plane-wave Born approximations. Tables of parameter values are given for all elements, from hydrogen (Z=1) to einsteinium (Z=99). The proposed analytical expressions yield ionization cross sections that agree with those in the numerical database to within about 1%, except for projectiles with near-threshold energies.

  5. Flow profile near a wall measured by double-focus fluorescence cross-correlation.

    PubMed

    Lumma, D; Best, A; Gansen, A; Feuillebois, F; Rädler, J O; Vinogradova, O I

    2003-05-01

    We present an experimental approach to flow profiling within femtoliter sample volumes, which allows the high-precision measurements at the solid interface. The method is based on the spatial cross-correlation of the fluorescence response from labeled tracer particles (latex nanospheres or single dye molecules). Two excitation volumes, separated by a few micrometers, are created by two laser foci under a confocal microscope. The velocity of tracer particles is measured in a channel about 100 microm wide within a typical accuracy of 0.1%, and the positions of the walls are estimated independently of any hydrodynamic data. The underlying theory for the optical method is given for an arbitrary velocity profile, explicitly presenting the numerical convolutions necessary for a quantitative analysis. It is illustrated by using the Poiseuille flow of a Newtonian liquid with slip as an example. Our analysis yields a large apparent fluid velocity at the wall, which is mostly due to the impact of the colloidal (electrostatic) forces. This colloidal lift is crucially important in accelerating the transport processes of molecules and nanoparticles in microfluidic devices. PMID:12786278

  6. Cross-sectional Analysis of Anisotropic, Thin-Walled, Closed-Section Beams with Embedded Strain Actuation

    Microsoft Academic Search

    Mayuresh J. Patil; Eric R. Johnson

    The paper presents a theory for the analysis of active anisotropic beams. The focus of the paper is on the calculation of 2-D, beam, cross-sectional properties that can then be incorporated into any 1-D beam analysis. Closed-form expressions for the cross-section flexibilities as well as actuation strains for an active, anisotropic, thin-walled, closed-section beam are derived and presented in a

  7. Bubble Formation from Wall Orifice in Liquid Cross-Flow Under Low Gravity

    NASA Technical Reports Server (NTRS)

    Nahra, Henry K.; Kamotani, Y.

    2000-01-01

    Two-phase flows present a wide variety of applications for spacecraft thermal control systems design. Bubble formation and detachment is an integral part of the two phase flow science. The objective of the present work is to experimentally investigate the effects of liquid cross-flow velocity, gas flow rate, and orifice diameter on bubble formation in a wall-bubble injection configuration. Data were taken mainly under reduced gravity conditions but some data were taken in normal gravity for comparison. The reduced gravity experiment was conducted aboard the NASA DC-9 Reduced Gravity Aircraft. The results show that the process of bubble formation and detachment depends on gravity, the orifice diameter, the gas flow rate, and the liquid cross-flow velocity. The data are analyzed based on a force balance, and two different detachment mechanisms are identified. When the gas momentum is large, the bubble detaches from the injection orifice as the gas momentum overcomes the attaching effects of liquid drag and inertia. The surface tension force is much reduced because a large part of the bubble pinning edge at the orifice is lost as the bubble axis is tilted by the liquid flow. When the gas momentum is small, the force balance in the liquid flow direction is important, and the bubble detaches when the bubble axis inclination exceeds a certain angle.

  8. Swapping trajectories: a new wall-induced cross-streamline particle migration mechanism in a dilute suspension of spheres

    E-print Network

    M. Zurita-Gotor; J. Blawzdziewicz; E. Wajnryb

    2007-05-21

    Binary encounters between spherical particles in shear flow are studied for a system bounded by a single planar wall or two parallel planar walls under creeping flow conditions. We show that wall proximity gives rise to a new class of binary trajectories resulting in cross-streamline migration of the particles. The spheres on these new trajectories do not pass each other (as they would in free space) but instead they swap their cross-streamline positions. To determine the significance of the wall-induced particle migration, we have evaluated the hydrodynamic self-diffusion coefficient associated with a sequence of uncorrelated particle displacements due to binary particle encounters. The results of our calculations quantitatively agree with the experimental value obtained by \\cite{Zarraga-Leighton:2002} for the self-diffusivity in a dilute suspension of spheres undergoing shear flow in a Couette device. We thus show that the wall-induced cross-streamline particle migration is the source of the anomalously large self-diffusivity revealed by their experiments.

  9. The sfe Maize Mutant: Reduced Ferulate Cross Linking Improves Rumen Cell Wall Degradability and Milk Production by Dairy Cows

    Technology Transfer Automated Retrieval System (TEKTRAN)

    A putative mutant has been identified in maize that reduces ferulate cross linking of lignin to arabinoxylan in mature stover, increases in vitro rumen cell wall degradability, and increases milk production by cows. The seedling ferulate ester (sfe) mutant was discovered in a Mu transposon-mutated p...

  10. A Transglutaminase Immunologically Related to Tissue Transglutaminase Catalyzes Cross-Linking of Cell Wall Proteins in Chlamydomonas reinhardtii1

    PubMed Central

    Waffenschmidt, Sabine; Kusch, Thomas; Woessner, Jeffrey Paul

    1999-01-01

    The addition of primary amines to the growth medium of the unicellular green alga Chlamydomonas reinhardtii disrupts cell wall assembly in both vegetative and zygotic cells. Primary amines are competitive inhibitors of the protein-cross-linking activity of transglutaminases. Two independent assays for transglutaminase confirmed a burst of extracellular activity during the early stages of cell wall formation in both vegetative cells and zygotes. When non-inhibiting levels of a radioactive primary amine (14C-putrescine) were added to the growth medium, both cell types were labeled in a reaction catalyzed by extracellular transglutaminase. The radioactive label was found specifically in the cell wall proteins of both cell types, and acid hydrolysis of the labeled material released unmodified 14C-putrescine. Western blots of the proteins secreted at the times of maximal transglutaminase activity in both cell types revealed a single highly cross-reactive 72-kD band when screened with antibodies to guinea pig tissue transglutaminase. Furthermore, the proteins immunoprecipitated by this antiserum in vivo exhibited transglutaminase activity. We propose that this transglutaminase is responsible for an early cell wall protein cross-linking event that temporally precedes the oxidative cross-linking mediated by extracellular peroxidases. PMID:10557250

  11. Reduction of ferulate ether cross links in maize stover due to selection for low ferulate ester concentrations in seedlings improves cell wall digestibility

    Technology Transfer Automated Retrieval System (TEKTRAN)

    We hypothesized that ferulate-mediated cross links between lignin and hemicellulose in the cell walls of grasses could be reduced by inhibition of ferulate ester biosynthesis. Further, a reduction in cross linking should lead to improved digestibility of cell wall polysaccharides. We report here tha...

  12. New Evaluated Semi-Empirical Formula Using Optical Model for 14-15 MeV ( n, t) Reaction Cross Sections

    NASA Astrophysics Data System (ADS)

    Tel, E.; Durgu, C.; Ayd?n, A.; Bölükdemir, M. H.; Kaplan, A.; Okuducu, ?.

    2009-12-01

    In the next century the world will face the need for new energy sources. Nuclear fusion can be one of the most attractive sources of energy from the viewpoint of safety and minimal environmental impact. Fusion will not produce CO2 or SO2 and thus will not contribute to global warming or acid rain. Achieving acceptable performance for a fusion power system in the areas of economics, safety and environmental acceptability, is critically dependent on performance of the blanket and diverter systems which are the primary heat recovery, plasma purification, and tritium breeding systems. Tritium self-sufficiency must be maintained for a commercial power plant. The hybrid reactor is a combination of the fusion and fission processes. For self-sustaining (D-T) fusion driver tritium breeding ratio should be greater than 1.05. So working out the systematics of ( n, t) reaction cross-sections are of great importance for the definition of the excitation function character for the given reaction taking place on various nuclei at energies up to 20 MeV. In this study, we have calculated non-elastic cross-sections by using optical model for ( n, t) reactions at 14-15 MeV energy. We have investigated the excitation function character and reaction Q-values depending on the asymmetry term effect for the ( n, t) reaction cross-sections. We have obtained new coefficients for the ( n, t) reaction cross-sections. We have suggested semi-empirical formulas including optical model nonelastic effects by fitting two parameters for the ( n, t) reaction cross-sections at 14-15 MeV. We have discussed the odd-even effect and the pairing effect considering binding energy systematic of the nuclear shell model for the new experimental data and new cross-sections formulas ( n, t) reactions developed by Tel et al. We have determined a different parameter groups by the classification of nuclei into even-even, even-odd and odd-even for ( n, t) reactions cross-sections. The obtained cross-section formulas with new coefficients have been discussed and compared with the available experimental data.

  13. Infant formulas

    MedlinePLUS

    ... allergies or colic. Babies who are allergic to cows' milk may also be allergic to soy milk. Hypoallergenic formulas (protein hydrolysate formulas): This type of formula may be helpful for infants who ...

  14. Infant Formula

    MedlinePLUS

    ... doctor will probably recommend a formula made from cow's milk. Some formulas are iron-fortified. This means they ... formulas are made from soy milk instead of cow's milk. If your baby seems to be allergic to ...

  15. MMP for moduli of sheaves on K3s via wall-crossing: nef and movable cones, Lagrangian fibrations

    NASA Astrophysics Data System (ADS)

    Bayer, Arend; Macrì, Emanuele

    2014-12-01

    We use wall-crossing with respect to Bridgeland stability conditions to systematically study the birational geometry of a moduli space M of stable sheaves on a K3 surface X: 1. We describe the nef cone, the movable cone, and the effective cone of M in terms of the Mukai lattice of X. 2. We establish a long-standing conjecture that predicts the existence of a birational Lagrangian fibration on M whenever M admits an integral divisor class D of square zero (with respect to the Beauville-Bogomolov form). These results are proved using a natural map from the space of Bridgeland stability conditions Stab(X) to the cone Mov(X) of movable divisors on M; this map relates wall-crossing in Stab(X) to birational transformations of M. In particular, every minimal model of M appears as a moduli space of Bridgeland-stable objects on X.

  16. Trajectory measurements of a wall jet impinging onto a forward facing step entering a cross-flow.

    PubMed

    Langer, D C; Fleck, B A; Wilson, D J

    2010-04-15

    This study examines a horizontal wall jet impinging onto a forward facing step in a cross-flow. Planar laser induced fluorescence (PLIF) experiments in a water channel indicate that the wall-jet flow after impinging onto the step, becomes a vertical jet with an elliptical cross section. Experiments indicate that the jet trajectory scales with the perimeter of the elliptical jet issuing vertically into the cross-flow. The trajectory consists of three regions: the near-field region which is well described by a power law with an exponent of 1/2, the mid-field region where the jet is fully bent over which is described by a power law with an exponent of 1/3, and a far-field region where the jet is dominated by the cross-flow. This paper provides a prediction of the plume behaviour based on the geometric and initial conditions of the jet (diameter, step height, distance from jet to step, and velocity ratio) alone. The Briggs entrainment model for a round jet was also used to predict the trajectories of the jet in the cross-flow. It was found that the entrainment coefficients, alpha and beta, for the elliptical jet case had average values of 0.15 and 0.58 respectively. PMID:20005038

  17. The pore size of non-graminaceous plant cell walls is rapidly decreased by borate ester cross-linking of the pectic polysaccharide rhamnogalacturonan II

    Microsoft Academic Search

    Axel Fleischer; M. A. ONeill; Rudolf Ehwald

    1999-01-01

    The walls of suspension-cultured Chenopodium album L. cells grown continually for more than 1 year on B-deficient medium contained monomeric rhamnogalacturonan (mRG-II) but not the borate ester cross-linked RG II dimer (dRG-II-B). The walls of these cells had an increased size limit for dextran permeation, which is a measure of wall pore size. Adding boric acid to growing B-deficient cells

  18. Mechanics analysis of thin-walled box continuous girder with variable cross-sections in considering effect of large deflection and shear lag

    Microsoft Academic Search

    Yuji Chen; Qizhi Luo

    2009-01-01

    In order to study the mechanics behavior of a thin-walled box continuous girder with variable cross-sections, using potential\\u000a variation theories, considering the effect of shear lag of flange’s stress and the nonlinear geometry of vertical displacement,\\u000a and evolving five generalized displacements with the spline function, the large deflection problem of the thin-walled box\\u000a continuous girder with variable cross-section was transformed

  19. Aminoguanidine Prevents Diabetes-Induced Arterial Wall Protein Cross-Linking

    Microsoft Academic Search

    M. Brownlee; H. Vlassara; A. Kooney; P. Ulrich; A. Cerami

    1986-01-01

    Age-associated increases in collagen cross-linking and accumulation of advanced glycosylation products are both accelerated by diabetes, suggesting that glucose-derived cross-link formation may contribute to the development of chronic diabetic complications as well as certain physical changes of aging. Aminoguanidine, a nucleophilic hydrazine compound, prevented both the formation of fluorescent advanced nonenzymatic glycosylation products and the formation of glucose-derived collagen cross-links

  20. Model Stacking (MOST) technique applied in cross-hole ERT field data for the detection of Thessaloniki ancient walls' depth

    NASA Astrophysics Data System (ADS)

    Leontarakis, Konstantinos; Apostolopoulos, George V.

    2013-06-01

    A cross-hole Electrical Resistivity Tomography (ERT) study was undertaken near the center of Thessaloniki in order to detect the depth of the existing city walls in the planned route of the new city underground train. This cross-hole setup was used for a study of measurements with various electrode arrays in real urban field conditions to evaluate the resolution of the models which is produced by each array and the reliability of the models which is produced by the newly published "MOST" technique. The pole-tripole array (C2-C1P1P2) produces high resolution models, even when only borehole electrodes are used. The bipole-bipole C1C2-P1P2 array, when used for cross-hole measurements only, produces higher resolution models compared to the C1P1-C2P2 array, even with a lower signal-to-noise ratio, which can result in extremely high RMS error, when noise, systematic or not, must be faced. The models of both arrays are greatly improved by the use of surface electrodes. The pole-bipole array (C1-P1P2) is proved to be less accurate in imaging and quite unstable to the noisy urban environment and to systematic errors. Furthermore, the Model Stacking (MOST) interpretation technique leads to better results with models of greater resolution and fewer artifacts compared even with the combined data inversion. Finally, the ERT cross-hole analysis has been reliable in detecting the city walls.

  1. Cross-linked gel polymer electrolyte containing multi-wall carbon nanotubes for application in dye-sensitized solar cells

    NASA Astrophysics Data System (ADS)

    Benedetti, João E.; Corrêa, Aline A.; Carmello, Mayara; Almeida, Luiz C. P.; Gonçalves, Agnaldo S.; Nogueira, Ana F.

    2012-06-01

    A cross-linked gel polymer electrolyte composed of poly (ethylene oxide-co-2-(2-methoxyethoxy) ethyl glycidyl ether-co-allyl glycidyl ether, ?-butyrolactone, LiI and I2, mixed with functionalized multi-wall carbon nanotubes (MWCNT), was applied in dye-sensitized solar cells (DSSC). The electrolyte was characterized by differential scanning calorimetry, conductivity measurements and Raman spectroscopy. Due to its nature, the terpolymer was chemically cross-linked during DSSC assembly to give rise to quasi-solid state solar cells. The gel polymer electrolyte containing 1 wt% of MWCNT exhibited conductivity values higher than 10-3 S cm-1. An increase in MWCNT content provided a smaller concentration of polyiodide species, as confirmed by Raman spectroscopy. The highest photocurrent (8.74 mA cm-2) was achieved by DSSC based on the cross-linked gel polymer electrolyte containing 1 wt% of MWCNT compared to DSSC based on non-cross-linked gel polymer electrolytes (7.93 mA cm-2). The incorporation of 3 wt% of MWCNT into the gel polymer electrolyte promoted a decrease in both Jsc and Voc, probably due to poorer light transmittance of the electrolyte in the visible range and higher charge recombination losses, respectively. Thus, the highest efficiency in this work was achieved by using electrolyte containing 1 wt% of MWCNT. After the cross-linking process, the dimensional stability of the gel composite electrolyte was improved and the conversion efficiency of DSSC was only slightly affected, changing from 3.37% (before cross-linking) to 3.35%.

  2. Sonication mediated covalent cross-linking of DNA to single-walled carbon nanotubes

    NASA Astrophysics Data System (ADS)

    Dolash, Bridget D.; Lahiji, Roya R.; Zemlyanov, Dmitry Y.; Drachev, Vladimir P.; Reifenberger, Ronald; Bergstrom, Donald E.

    2013-02-01

    Sonication with nucleic acids has become a standard method for obtaining aqueous dispersions of carbon nanotubes. On the basis of theoretical studies and scanning probe microscopy (SPM) imaging a widely accepted model for DNA association with SWCNT is one in which the DNA binds through non-covalent ?-stacking and hydrophobic interactions. Following the standard procedures established by others to prepare DNA associated single-wall carbon nanotubes (SWCNT), we have determined that sonication generates radical intermediates then form covalent anchors between the DNA and SWCNT. In light of this finding, results from studies on DNA associated carbon nanotubes, need to be more carefully interpreted.

  3. Formulas Poker

    NSDL National Science Digital Library

    2014-01-28

    In this adapted version of poker, learners practice writing chemical formulas by playing this chemistry card game. The game is played as 5-card draw and uses cards that contain an ion, a subscript, or is blank (FREE!). Learners try to make a chemical formula that uses as many of their cards as possible. Learners will keep track of their moves and scores on their own score sheet (a sample is provided).

  4. Quadratic formula

    NSDL National Science Digital Library

    2013-06-21

    The quadratic formula is easy to solve, yet sufficiently sophisticated that it provides insight into oscillations of masses connected by springs, as well as insight into chemical bonds between atoms. The purpose of this video is to illustrate what it means to find the "zeros" or "roots" of the quadratic equation, both using a graphical description, as well as by analytically completing the square to obtain the famous quadratic formula.

  5. Cross-machine comparison of resonant field amplification and resistive wall mode stabilization by plasma rotation

    SciTech Connect

    Reimerdes, H.; Sabbagh, S.A.; Bialek, J.M.; Garofalo, A.M.; Navratil, G.A.; Sontag, A.C.; Zhu, W. [Columbia University, New York, New York 10027 (United States); Hender, T.C.; Gryaznevich, M.P.; Howell, D F.; Bigi, M.; Vries, P. de [EURATOM/UKAEA Fusion Association, Culham Science Centre, Abingdon, OX14 3DB (United Kingdom); Chu, M.S.; Jackson, G.L.; La Haye, R.J.; Strait, E.J.; Gohil, P.; Groebner, R.J.; Scoville, J.T. [General Atomics, San Diego, California 92186-5608 (United States); Liu, Y. Q. [Chalmers University of Technology, S-412 96 Goeteborg (Sweden)] (and others)

    2006-05-15

    Dedicated experiments in the DIII-D tokamak [J. L. Luxon, Nucl. Fusion, 42, 614 (2002)], the Joint European Torus (JET) [P. H. Rebut, R. J. Bickerton, and B. E. Keen, Nucl. Fusion 25, 1011 (1985)], and the National Spherical Torus Experiment (NSTX) [M. Ono, S. M. Kaye, Y.-K. M. Peng et al., Nucl. Fusion 40, 557 (2000)] reveal the commonalities of resistive wall mode (RWM) stabilization by sufficiently fast toroidal plasma rotation in devices of different size and aspect ratio. In each device the weakly damped n=1 RWM manifests itself by resonant field amplification (RFA) of externally applied n=1 magnetic fields, which increases with the plasma pressure. Probing DIII-D and JET plasmas with similar ideal magnetohydrodynamic (MHD) stability properties with externally applied magnetic n=1 fields, shows that the resulting RFA is independent of the machine size. In each device the drag resulting from RFA slows the toroidal plasma rotation and can lead to the onset of an unstable RWM. The critical plasma rotation required for stable operation in the plasma center decreases with increasing q{sub 95}, which is explained by the inward shift of q surfaces where the critical rotation remains constant. The quantitative agreement of the critical rotation normalized to the inverse Alfven time at the q=2 surface in similar DIII-D and JET plasmas supports the independence of the RWM stabilization mechanism of machine size and indicates the importance of the q=2 surface. At low aspect ratio the required fraction of the Alfven velocity increases significantly. The ratio of the critical rotation in similar NSTX and DIII-D plasmas can be explained by trapped particles not contributing to the RWM stabilization, which is consistent with stabilization mechanisms that are based on ion Landau damping. Alternatively, the ratio of the required rotation to the sound wave velocity remains independent of aspect ratio.

  6. Using surface and cross-hole resistivity tomography in an urban environment: An example of imaging the foundations of the ancient wall in Thessaloniki, North Greece

    NASA Astrophysics Data System (ADS)

    Tsokas, G. N.; Tsourlos, P. I.; Vargemezis, G. N.; Pazaras, N. Th.

    This work describes the application of the electrical resistivity tomography (ERT) technique, in both surface and cross-hole modes, for subsurface exploration in an urban environment. The objective was to image the foundations of the Thessaloniki city walls (Region of Macedonia, North Greece) at locations that will be affected by the construction of a new underground Metro line. The surface ERT survey was performed along lines crossing directly over the wall on areas where it had partly collapsed. ERT surveys were also applied at places where the main over ground structure of the walls had been completely destroyed and what is left now is primarily only the ancient subsurface foundations. In addition, the present day ground surface is partially covered by concrete pavement slabs. In both cases, nonconventional electrodes were partially used to carry out a number of ERTs on the ground surface. This was necessary in order not to destroy the pavement slabs and most importantly not to damage in any way the monuments. An example of cross-hole ERT is also presented. Cross-hole ERTs were conducted because detailed measurements employing surface ERT were not possible due to limitations imposed by the urban environment. The way that the boreholes were instrumented is also presented. The combined surface and borehole tomographies produced images of the buried structures allowing the assessment of their geometrical shape and of the dimensions of the foundations of the ancient wall.

  7. Covalently bound wall proteins of pollen grains and pollen tubes grown in vitro and in styles after self- and cross-pollination in Lilium longiflorum

    Microsoft Academic Search

    Li Yi-qin; T. H. Tsao

    1985-01-01

    A method was worked out using trifluoromethanesulfonic acid (TFMS) as a reagent to split the covalently bound proteins, which are NaCl insoluble, from pollen tube walls of Lilium longiflorum, leaving the peptide bonds essentially intact. After electrophoretic separation, comparisons were made among these proteins from pollen grains and pollen tubes grown in vitro and in styles after self- and cross-pollination.

  8. How Do Lignin Composition, Structure, and Cross-Linking Affect Degradability? A Review of Cell Wall Model Studies

    Microsoft Academic Search

    John H. Grabber

    2005-01-01

    anisms by which lignin restrict fiber degradation are poorly under- stood. Many aspects of grass cell wall lignification and degradation Hatfield, 1997). These reductions in degradability are are successfully modeled by dehydrogenation polymer-cell wall partly related to the increased lignin content of cell (DHP-CW) complexes formed with primary walls of corn Zea mays walls; however, variations in three-dimensional struc- L.

  9. A Cross Structured Light Sensor and Stripe Segmentation Method for Visual Tracking of a Wall Climbing Robot.

    PubMed

    Zhang, Liguo; Sun, Jianguo; Yin, Guisheng; Zhao, Jing; Han, Qilong

    2015-01-01

    In non-destructive testing (NDT) of metal welds, weld line tracking is usually performed outdoors, where the structured light sources are always disturbed by various noises, such as sunlight, shadows, and reflections from the weld line surface. In this paper, we design a cross structured light (CSL) to detect the weld line and propose a robust laser stripe segmentation algorithm to overcome the noises in structured light images. An adaptive monochromatic space is applied to preprocess the image with ambient noises. In the monochromatic image, the laser stripe obtained is recovered as a multichannel signal by minimum entropy deconvolution. Lastly, the stripe centre points are extracted from the image. In experiments, the CSL sensor and the proposed algorithm are applied to guide a wall climbing robot inspecting the weld line of a wind power tower. The experimental results show that the CSL sensor can capture the 3D information of the welds with high accuracy, and the proposed algorithm contributes to the weld line inspection and the robot navigation. PMID:26110403

  10. Effect of Activation Cross Section Uncertainties on the Radiological Assessment of the MFE/DEMO First Wall

    SciTech Connect

    Cabellos, O; Reyes, S; Sanz, J; Rodriguez, A; Youssef, M; Sawan, M

    2005-05-10

    A Monte Carlo procedure has been applied in this work in order to address the impact of activation cross sections (XS) uncertainties on contact dose rate and decay heat calculations for the outboard first wall (FW) of a magnetic fusion energy (MFE) demonstration (DEMO) reactor. The XSs inducing the major uncertainty in the prediction of activation related quantities have been identified. Results have shown that for times corresponding to maintenance activities the uncertainties effect is insignificant since the dominant XSs involved in these calculations are based on accurate experimental data evaluations. However, for times corresponding to waste management/recycling activities, the errors induced by the XSs uncertainties, which in this case are evaluated using systematic models, must be considered. It has been found that two particular isotopes, {sup 60}Co and {sup 94}Nb, are key contributors to the global DEMO FW activation uncertainty results. In these cases, the benefit from further improvements in the accuracy of the critical reaction XSs is discussed.

  11. A Cross Structured Light Sensor and Stripe Segmentation Method for Visual Tracking of a Wall Climbing Robot

    PubMed Central

    Zhang, Liguo; Sun, Jianguo; Yin, Guisheng; Zhao, Jing; Han, Qilong

    2015-01-01

    In non-destructive testing (NDT) of metal welds, weld line tracking is usually performed outdoors, where the structured light sources are always disturbed by various noises, such as sunlight, shadows, and reflections from the weld line surface. In this paper, we design a cross structured light (CSL) to detect the weld line and propose a robust laser stripe segmentation algorithm to overcome the noises in structured light images. An adaptive monochromatic space is applied to preprocess the image with ambient noises. In the monochromatic image, the laser stripe obtained is recovered as a multichannel signal by minimum entropy deconvolution. Lastly, the stripe centre points are extracted from the image. In experiments, the CSL sensor and the proposed algorithm are applied to guide a wall climbing robot inspecting the weld line of a wind power tower. The experimental results show that the CSL sensor can capture the 3D information of the welds with high accuracy, and the proposed algorithm contributes to the weld line inspection and the robot navigation. PMID:26110403

  12. Flow characteristics and spillage mechanisms of wall-mounted and jet-isolated range hoods subject to influence from cross draft.

    PubMed

    Chen, Jia-Kun; Huang, Rong Fung; Peng, Kuan-Lin

    2012-01-01

    The effects of draft on the flow and spillage characteristics of wall-mounted and jet-isolated range hoods were investigated. A specially designed draft generator that could supply low-swirl air current was used to provide "cross draft" from three directions, lateral (? = 0(o)), oblique (? = 45(o)), and front (? = 90(o)), with respect to the center point of the range hoods. Flow characteristics of oil mist were inspected through visualization of smoke flows with light scattering (laser light sheet-assisted visualization of smoke flow). The leakage mechanisms, which were closely related to the flow features, were studied by examining both movies and still pictures showing smoke-flow evolution. The sulfur hexafluoride tracer gas concentration detection method was employed to measure the capture indices. The results showed that the lateral draft pushed the pollutants generated under the hood in the opposite direction and induced serious spillage. The oblique draft pushed the pollutants toward both the rear wall and opposite side and induced more serious spillage than did the lateral draft. The frontal draft forced the pollutants to bifurcate into streams moving toward the left and the right, and induced the most serious pollutant spillage among the three tested drafts. Pollutant spillage became critically significant as the cross draft velocity was increased to greater than 0.2 m/sec. Spillage of pollutants increased as the velocity of the cross draft was increased. Increasing the suction flow rate of the range hood may increase resistance to the draft, but the benefits were limited at draft velocities greater than 0.2 m/sec. Both range hoods had a similarly low capture index under the influence of the lateral draft. For the oblique and frontal drafts, the jet-isolated range hood demonstrated a higher capture index than did the wall-mounted range hood. PMID:22150435

  13. High-temperature, high-resolution photoabsorption cross sections of <formula alphabet="latin">O2 in the 108.5-nm region

    NASA Astrophysics Data System (ADS)

    Wu, C. Y. Robert; Hung, T.; Judge, D. L.; Matsui, Takashi

    2001-04-01

    The high-resolution absorption cross-section measurements of O2 in the 108.0- to 108.7-nm spectral region have been carried out with a resolution of 0.0008 nm and at temperatures of 295 and 535 K. The absorption features in this spectral region exhibit primarily a blue-shaded broad band with a band head peaked at 108.52 nm. The center of gravity of the diffuse band is located at 108.452 nm. The present room temperature cross-section data of the NII 108.5-nm sextuplets agree well with the unpublished data of J.A.R. Samson (private communication, 1990). As the temperature increases from 295 to 535 K, we observe a decrease in cross-section values by as much as 30% over the contour of the diffuse band. Similarly, the cross-section values of the sharp features decrease as temperature increases. The NII 108.5-nm multiplets are one of the prominent emissions in the Earth's airglow. The EUV-UV dayglow limb scans of the thermosphere and ionosphere have currently been gathered by satellite, e.g., ARGOS, at a tangent ray height of 200 km, above where the ambient absorption due to O2 and N2 is expected. The present temperature-dependent cross sections of O2 provide the important database required for modeling the dayglow observations.

  14. Arabidopsis wat1 (walls are thin1)-mediated resistance to the bacterial vascular pathogen, Ralstonia solanacearum, is accompanied by cross-regulation of salicylic acid and tryptophan metabolism.

    PubMed

    Denancé, Nicolas; Ranocha, Philippe; Oria, Nicolas; Barlet, Xavier; Rivière, Marie-Pierre; Yadeta, Koste A; Hoffmann, Laurent; Perreau, François; Clément, Gilles; Maia-Grondard, Alessandra; van den Berg, Grardy C M; Savelli, Bruno; Fournier, Sylvie; Aubert, Yann; Pelletier, Sandra; Thomma, Bart P H J; Molina, Antonio; Jouanin, Lise; Marco, Yves; Goffner, Deborah

    2013-01-01

    Inactivation of Arabidopsis WAT1 (Walls Are Thin1), a gene required for secondary cell-wall deposition, conferred broad-spectrum resistance to vascular pathogens, including the bacteria Ralstonia solanacearum and Xanthomonas campestris pv. campestris, and the fungi Verticillium dahliae and Verticillium albo-atrum. Introduction of NahG, the bacterial salicylic acid (SA)-degrading salicylate hydroxylase gene, into the wat1 mutant restored full susceptibility to both R. solanacearum and X. campestris pv. campestris. Moreover, SA content was constitutively higher in wat1 roots, further supporting a role for SA in wat1-mediated resistance to vascular pathogens. By combining transcriptomic and metabolomic data, we demonstrated a general repression of indole metabolism in wat1-1 roots as shown by constitutive down-regulation of several genes encoding proteins of the indole glucosinolate biosynthetic pathway and reduced amounts of tryptophan (Trp), indole-3-acetic acid and neoglucobrassicin, the major form of indole glucosinolate in roots. Furthermore, the susceptibility of the wat1 mutant to R. solanacearum was partially restored when crossed with either the trp5 mutant, an over-accumulator of Trp, or Pro35S:AFB1-myc, in which indole-3-acetic acid signaling is constitutively activated. Our original hypothesis placed cell-wall modifications at the heart of the wat1 resistance phenotype. However, the results presented here suggest a mechanism involving root-localized metabolic channeling away from indole metabolites to SA as a central feature of wat1 resistance to R. solanacearum. PMID:22978675

  15. Breastfeeding vs. Formula Feeding

    MedlinePLUS

    ... served at the right temperature — formula feeding your baby requires planning and organization to make sure that you have what you need when you need it. Parents must buy formula and make sure it's always on hand ...

  16. The Strength of Thin-wall Cylinders of D Cross Section in Combined Pure Bending and Torsion

    NASA Technical Reports Server (NTRS)

    Sherwood, A W

    1943-01-01

    The results of tests of 56 cylinders of D cross section conducted in the Aeronautical Laboratory of the University of Maryland are presented in this report. These cylinders were subjected to pure bending and torsional moments of varying proportions to give the strength under combined loading conditions. The average buckling stress of these cylinders has been related to that of circumscribing circular cylinders for conditions of pure torsion and pure bending and the equation of the interaction curve has been determined for conditions of combined loading.

  17. Transcript profiling of two alfalfa genotypes with contrasting cell wall composition in stems using a cross-species platform: optimizing analysis by masking biased probes

    PubMed Central

    2010-01-01

    Background The GeneChip® Medicago Genome Array, developed for Medicago truncatula, is a suitable platform for transcript profiling in tetraploid alfalfa [Medicago sativa (L.) subsp. sativa]. However, previous research involving cross-species hybridization (CSH) has shown that sequence variation between two species can bias transcript profiling by decreasing sensitivity (number of expressed genes detected) and the accuracy of measuring fold-differences in gene expression. Results Transcript profiling using the Medicago GeneChip® was conducted with elongating stem (ES) and post-elongation stem (PES) internodes from alfalfa genotypes 252 and 1283 that differ in stem cell wall concentrations of cellulose and lignin. A protocol was developed that masked probes targeting inter-species variable (ISV) regions of alfalfa transcripts. A probe signal intensity threshold was selected that optimized both sensitivity and accuracy. After masking for both ISV regions and previously identified single-feature polymorphisms (SFPs), the number of differentially expressed genes between the two genotypes in both ES and PES internodes was approximately 2-fold greater than the number detected prior to masking. Regulatory genes, including transcription factor and receptor kinase genes that may play a role in development of secondary xylem, were significantly over-represented among genes up-regulated in 252 PES internodes compared to 1283 PES internodes. Several cell wall-related genes were also up-regulated in genotype 252 PES internodes. Real-time quantitative RT-PCR of differentially expressed regulatory and cell wall-related genes demonstrated increased sensitivity and accuracy after masking for both ISV regions and SFPs. Over 1,000 genes that were differentially expressed in ES and PES internodes of genotypes 252 and 1283 were mapped onto putative orthologous loci on M. truncatula chromosomes. Clustering simulation analysis of the differentially expressed genes suggested co-expression of some neighbouring genes on Medicago chromosomes. Conclusions The problems associated with transcript profiling in alfalfa stems using the Medicago GeneChip as a CSH platform were mitigated by masking probes targeting ISV regions and SFPs. Using this masking protocol resulted in the identification of numerous candidate genes that may contribute to differences in cell wall concentration and composition of stems of two alfalfa genotypes. PMID:20497574

  18. On the Goedel's formula

    E-print Network

    Jailton C. Ferreira

    2008-01-15

    This article examines the formula G (of Goedel). We demonstrated that the Goedel's number of the formula G is not a finite number if (i) G is comprehended as a self-referential statement or (ii) there is an infinite set S of well-formed formulae such that the elements of S are theorems or antitheorems in T.

  19. Designing State Aid Formulas

    ERIC Educational Resources Information Center

    Zhao, Bo; Bradbury, Katharine

    2009-01-01

    This paper designs a new equalization-aid formula based on fiscal gaps of local communities. When states are in transition to a new local aid formula, the issue of whether and how to hold existing aid harmless poses a challenge. The authors show that some previous studies and the formulas derived from them give differential weights to existing and…

  20. Earth pressure analysis on limited soils between front wall and back wall of griddling underground diaphragm wall

    Microsoft Academic Search

    Wei Xu; Zanyun Xu; Qingfeng Shen

    2011-01-01

    Based on the limit equilibrium theory and the hypothesis of double planar sliding plane, earth pressure calculation models of front and back walls of the underground diaphragm wall are established with the consideration of cohesion and the width of limited soils. And formulae are also deduced to calculate the earth pressure of the front and back walls. According to these

  1. Direct calculation of wall interferences and wall adaptation for two-dimensional flow in wind tunnels with closed walls

    NASA Technical Reports Server (NTRS)

    Amecke, Juergen

    1986-01-01

    A method for the direct calculation of the wall induced interference velocity in two dimensional flow based on Cauchy's integral formula was derived. This one-step method allows the calculation of the residual corrections and the required wall adaptation for interference-free flow starting from the wall pressure distribution without any model representation. Demonstrated applications are given.

  2. Profiling and comparison of color body wall transcriptome of normal juvenile sea cucumber ( Apostichopus japonicus) and those produced by crossing albino

    NASA Astrophysics Data System (ADS)

    Ma, Deyou; Yang, Hongsheng; Sun, Lina

    2014-12-01

    Sea cucumber ( Apostichopus japonicus) is one of the most important aquaculture animals in China. Usually its normal body color is black that fits its living environment. The juvenile individuals obtained by crossing albino sea cucumber segregated in body color. To document the transcriptome difference between albino associating sea cucumber and the control, we sequenced their transcriptomes with RNA-seq. Approximately, 4.790 million (M) and 4.884 M reads, 200 nt in length, were generated from the body wall of albino associating sea cucumber and the control, respectively, from them, 9550 (46.81%) putative genes were identified. In total, 583 genes were found to express differentially between albino associating sea cucumber and the control. Of these differentially expressed genes (DEGs), 4.8% changed more than five-folds. The expression levels of eight DEGs were confirmed with real-time PCR. The changing trend of these DEGs detected with real-time PCR agreed well with that detected with RNA-seq, although the change degree of some DEGs was different. Four significantly enriched pathways were identified for DEGs, which included phagocytosis, Staphylococcus aureus infection, ECM-receptor interaction and focal adhesion. These pathways were helpful for understanding the physiological difference between albino associating sea cucumber and the control.

  3. Tube formula, Berezinians, and Dwork formula

    E-print Network

    Hovhannes M. Khudaverdian

    2007-07-13

    We consider an example of tubes of hypersurfaces in Euclidean space and generalise the tube formula to supercase. By this we assign to a point of the hypersurface in superspace a rational characteristic function. Does this rational function appear when we calculate the zeta-function of an arithmetic variety?

  4. Geometry Formulas and Facts

    NSDL National Science Digital Library

    Levy, Silvio

    Rewritten and updated excerpts from the 30th Edition of the CRC Standard Mathematical Tables and Formulas. Covers all of geometry, minus differential geometry. Very complete collection of definitions, formulas, tables and diagrams, divided into two- and three- dimensional geometry, and further into 16 subdivisions such as transformations, polygons, coordinate systems, isometries, polyhedra and spheres.

  5. Prebiotics in infant formula.

    PubMed

    Vandenplas, Yvan; De Greef, Elisabeth; Veereman, Gigi

    2014-01-01

    The gastrointestinal microbiota of breast-fed babies differ from classic standard formula fed infants. While mother's milk is rich in prebiotic oligosaccharides and contains small amounts of probiotics, standard infant formula doesn't. Different prebiotic oligosaccharides are added to infant formula: galacto-oligosaccharides, fructo-oligosaccharide, polydextrose, and mixtures of these. There is evidence that addition of prebiotics in infant formula alters the gastrointestinal (GI) microbiota resembling that of breastfed infants. They are added to infant formula because of their presence in breast milk. Infants on these supplemented formula have a lower stool pH, a better stool consistency and frequency and a higher concentration of bifidobacteria in their intestine compared to infants on a non-supplemented standard formula. Since most studies suggest a trend for beneficial clinical effects, and since these ingredients are very safe, prebiotics bring infant formula one step closer to breastmilk, the golden standard. However, despite the fact that adverse events are rare, the evidence on prebiotics of a significant health benefit throughout the alteration of the gut microbiota is limited. PMID:25535999

  6. A Simple Approach to the Landau-Zener Formula

    ERIC Educational Resources Information Center

    Vutha, Amar C.

    2010-01-01

    The Landau-Zener formula provides the probability of non-adiabatic transitions occurring when two energy levels are swept through an avoided crossing. The formula is derived here in a simple calculation that emphasizes the physics responsible for non-adiabatic population transfer. (Contains 2 figures.)

  7. Revised formula of the average number of Frenkel-pairs

    NASA Astrophysics Data System (ADS)

    Zhang, Zhu Lin

    Based on the model of Kinchin and Pease, the author has derived a revised formula for the average number of Frenkel-pairs by using a new scattering cross section proposed recently. The formula, on the one hand, has confirmed Lindhard's statement, on the other hand, has removed the limitation of hard-sphere scattering model pointed out by sigmund.

  8. AJ Geometric Formulas Calculator

    NSDL National Science Digital Library

    Jimmy Raymond

    Solve various attributes of shapes and solids. Includes calculations for circle, parallelogram, rectangle, square, trapezoid, right circular cone, right circular cylinder, rectangular solid, and sphere geometric formulas. Geometry attributes include volume, area, perimeter, surface area, radius, length and circumference.

  9. Kelvin formula for thermopower

    NASA Astrophysics Data System (ADS)

    Peterson, Michael R.; Shastry, B. Sriram

    2010-11-01

    Thermoelectrics are important in physics, engineering, and material science due to their useful applications and inherent theoretical difficulty. Recent experimental interest has shifted to strongly correlated materials, where the calculations become particularly difficult. Here we reexamine the framework for calculating the thermopower, inspired by ideas of Lord Kelvin from 1854. We find an approximate but concise expression, which we term as the Kelvin formula for the Seebeck coefficient. According to this formula, the Seebeck coefficient is given as the particle number N derivative of the entropy S , at constant volume V , and temperature T , SKelvin=(1)/(qe){(?S)/(?N)}V,T . This formula is shown to be competitive compared to other approximations in various contexts including strongly correlated systems. We finally connect to a recent thermopower calculation for non-Abelian fractional quantum-Hall states, where we point out that the Kelvin formula is exact.

  10. Plasma levels of the arterial wall protein fibulin-1 are associated with carotid-femoral pulse wave velocity: a cross-sectional study

    PubMed Central

    2013-01-01

    Background The arterial system in diabetic patients is characterized by generalized non-atherosclerotic alterations in the vascular extracellular matrix causing increased arterial stiffness compared with subjects without diabetes. The underlying pathophysiology remains elusive. The elastin-associated extracellular matrix protein, fibulin-1, was recently found in higher concentrations in the arterial wall and in plasma in patients with long duration type 2 diabetes. Furthermore, plasma fibulin-1 independently predicted total mortality and was associated with pulse pressure, an indirect measure of arterial stiffness. Whether plasma fibulin-1 is associated with arterial stiffness at earlier phases of type 2 diabetes has not been determined. Methods In this cross-sectional study, we examined 90 patients with recently diagnosed type 2 diabetes (< 5 years) and 90 gender- and age-matched controls. Plasma fibulin-1 was measured immunochemically. Arterial stiffness was assessed by carotid-femoral Pulse Wave Velocity (PWV). Differences in means were assessed by t-tests. Associations were assessed by multivariate regression analyses. Results Plasma fibulin-1 levels were lower in the diabetic group compared with the control group, 93?±?28 vs 106?±?30 ?g/mL, p?=?0.005. In unadjusted analysis of the total study sample, plasma fibulin-1 was not associated with PWV, p?=?0.46. However, with adjustment for the confounders age, gender, mean blood pressure, heart rate, body mass index, diabetes and glomerular filtration rate, a 10 ?g/mL increase in plasma fibulin was associated with 0.09?±?0.04 m/s increase in PWV, p?

  11. Research Timeline: Formulaic language

    ERIC Educational Resources Information Center

    Wray, Alison

    2013-01-01

    Creating a timeline for formulaic language is far from simple, because several partially independent lines of research have contributed to the emerging picture. Each exhibits cycles of innovation and consolidation over time: domains take a leading role in developing new knowledge and then fall back, while another area comes to the fore. Thus, some…

  12. The Formula Essay Reconsidered

    ERIC Educational Resources Information Center

    Haluska, Jan

    2012-01-01

    Bruce Pirie offers the following criticism about formula essays: "What does a five-paragraph essay teach about writing? It teaches that there are rules, and that those rules take the shape of a preordained form, like a cookie-cutter, into which we can pour ideas and expect them to come out well shaped." He goes on to discredit such essays as being…

  13. A Formula for Factoring.

    ERIC Educational Resources Information Center

    Roebuck, Kay I. Meeks

    1997-01-01

    Suggests use of the quadratic formula to build understanding that connections between factors and solutions to equations work both ways. Making use of natural connections among concepts allows students to work more efficiently. Presents four sample problems showing the roots of equations. Messy quadratic equations with rational roots can be solved…

  14. Derivation of Characteristic Formulae

    Microsoft Academic Search

    Markus Müller-Olm

    1998-01-01

    This paper shows how modal mu-calculus formulae characterizing finite-state processes up to strong or weak bisimulation can be derived directly from the well-known greatest fixpoint characterizations of the bisimulation relations. Our derivation simplifies earlier proofs for the strong bisimulation case and, by virtue of derivation, immediately generalizes to various other bisimulation-like relations, in particular weak bisimulation.

  15. Pore size control and gas permeation kinetics of silica membranes by pyrolysis of phenyl-substituted ethoxysilanes with cross-flow through a porous support wall

    Microsoft Academic Search

    B.-K. Sea; K. Kusakabe; S. Morooka

    1997-01-01

    A silica membrane was produced by chemical vapor deposition using tetraethoxysilane (TEOS), phenyltriethoxysilane (PTES) or diphenyldiethoxysilane (DPDES) as the Si source. Amorphous silica was deposited in the mesopores of a ?-alumina film coated on a porous ?-alumina tube, by evacuating the reactant through the porous wall. Hydrogen permeance at a permeation temperature of 600°C was of the order of 10?7

  16. KOSHLIAKOV'S FORMULA AND GUINAND'S FORMULA IN RAMANUJAN'S LOST NOTEBOOK

    E-print Network

    Berndt, Bruce C.

    involving the modified Bessel function K(z). These include Koshliakov's formula and Guinand's formula, both, modified Bessel functions, nonanalytic Eisen- stein series, Maass wave forms, divisor functions 2000 formula, let K(z) denote the modified Bessel function of order [31, p. 78], and let d(n) denote

  17. 2007 Formula SAE pedal box

    E-print Network

    Schiller, Brad W

    2007-01-01

    The purpose of this thesis is the design and implementation of the pedal box for the 2007 MIT Formula SAE car. Formula SAE is a collegiate competition in which groups of degree seeking students design and manufacture small ...

  18. Cronobacter Illness and Infant Formula

    MedlinePLUS

    ... infant formula guidelines [PDF - 361KB] Foodsafety.gov: Baby food and infant formula Handwashing: Clean hands Save Lives , hand- and water-related hygiene tips Put Your Hands Together [PODCAST - 3:48 ...

  19. The use of the finite-element method to calculate unsteady temperatures in the cross section of a thin-wall structure

    Microsoft Academic Search

    G. N. Zamula; S. N. Ivanov; S. F. Teslenko

    1982-01-01

    The finite-element method in conjunction with the substructure method is used to analyze unsteady temperature fields in a system of thin-wall rods. A family of two-layer schemes is constructed, and their stability is analyzed. Results obtained with the finite-element method are compared with those obtained with the heat-balance method for the nonlinear problem of calculating temperature fields in a multilayer

  20. Cauchy Integral Formula

    NASA Astrophysics Data System (ADS)

    Azram, M.; Elfaki, F. A. M.

    2013-12-01

    Cauchy-Goursat integral theorem is a pivotal, fundamentally important, and well celebrated result in complex integral calculus. It requires analyticity of the function inside and on the boundary of the simple closed curve. In this study we will investigate the condition(s) under which even though the function is not analytic at a point inside C. Consequently, we will extend the above notion to a finite numbers of points and will present an easy and simple proof of unquestionably the most important, significant and pivotal result known as Cauchy integral formula.

  1. Genetic and molecular basis of grass cell-wall degradability. I. Lignin–cell wall matrix interactions

    Microsoft Academic Search

    John H Grabber; John Ralph; Catherine Lapierre; Yves Barrière

    2004-01-01

    Lignification limits grass cell-wall digestion by herbivores. Lignification is spatially and temporally regulated, and lignin characteristics differ between cell walls, plant tissues, and plant parts. Grass lignins are anchored within walls by ferulate and diferulate cross-links, p-coumarate cyclodimers, and possibly benzyl ester and ether cross-links. Cell-wall degradability is regulated by lignin concentration, cross-linking, and hydrophobicity but not directly by most

  2. Water and formula fluoride concentrations: significance for infants fed formula

    Microsoft Academic Search

    Samina Van Winkle; Steven M. Levy; Mary C. Kiritsy; Judy R. Heilman; James S. Wefel; Teresa Marshall

    1995-01-01

    The independent contributions of formula and water to the total fluoride (F) intake from the diet of formula-fed infants is not fully documented. Although the precise tim- ing and mechanism by which dental fluorosis occurs has not been fully defined, water F levels can be an important consideration in the risk of dental fluorosis for formula-fed infants. An assessment ofl,308

  3. The effect of the heat exchanger arrangement and wind-break walls on the performance of natural draft dry-cooling towers subjected to cross-winds

    Microsoft Academic Search

    A. F. du Preez; D. G. Kröger

    1995-01-01

    In most full scale dry-cooling towers rectangular heat exchanger bundles are arranged either vertically around the circumference of the tower or horizontally in the inlet cross-section of the tower. A numerical procedure is used in the present paper to investigate the influence of the particular arrangement on the performance of a tower in windy conditions with the results being verified

  4. Wonderful Walls

    ERIC Educational Resources Information Center

    Greenman, Jim

    2006-01-01

    In this article, the author emphasizes the importance of "working" walls in children's programs. Children's programs need "working" walls (and ceilings and floors) which can be put to use for communication, display, storage, and activity space. The furnishings also work, or don't work, for the program in another sense: in aggregate, they serve as…

  5. Resistive-wall wake effect in the beam delivery system

    SciTech Connect

    J.R. Delayen; Juhao Wu; T.O. Raubenheimer; Jiunn-Ming Wang

    2004-08-16

    General formulae for resistive-wall induced beam dilution are presented and then applied to the final beam delivery system of linear colliders. Criteria for the design of final beam delivery systems are discussed.

  6. Formula vs. Fractured Formula in Contest Persuasive Speaking.

    ERIC Educational Resources Information Center

    Reynolds, Christina L.

    In the past decade, contest persuasive speaking has become a product that student competitors produce and perform. A perversion of the contest formula has removed the element of persuasion from the formula. Competition rules suggest that a student's purposes in participating in forensics events should include inspiring, reinforcing, or changing…

  7. The Remainder in Taylor's Formula.

    ERIC Educational Resources Information Center

    Poffald, Esteban I.

    1990-01-01

    Presented is a mean-value theorem that generalizes the Taylor-Lagrange formula. Discussed is the asymptotic behavior of the remainder term of the formula. Several numerical schemes are derived to approximate the solution to initial-valued first order differential equations. (KR)

  8. Formulaicity in Essay Exam Answers.

    ERIC Educational Resources Information Center

    Chenoweth, N. Ann

    1995-01-01

    Examines the in-class essay as written by university freshmen to assess the extent to which students use formulaic expressions to minimize the cognitive burden of generating a coherent and adequate answer. Results show that students made extensive use of formulaic expressions and shaped their answers to reflect the way the information had been…

  9. Wall Turbulence.

    ERIC Educational Resources Information Center

    Hanratty, Thomas J.

    1980-01-01

    This paper gives an account of research on the structure of turbulence close to a solid boundary. Included is a method to study the flow close to the wall of a pipe without interferring with it. (Author/JN)

  10. Cell walls of algae in the volvocales: Their sensitivity to a cell wall lytic enzyme and labeling with an anti-cell wall glycopeptide of Chlamydomonas reinhardtii

    Microsoft Academic Search

    Yoshihiro Matsuda; Alan Musgrave; Herman van den Ende; Keith Roberts

    1987-01-01

    A cell wall lytic enzyme (gamete wall-autolysin) and a polyclonal antiserum raised against one of the major cell wall glycopeptides\\u000a ofChlamydomonas reinhardtii were used to study their cross-reactivities with the cell walls of variety of members of the Volvocales. Lytic enzyme was\\u000a able to digest completely the cell walls of five species ofChlamydomonas (C. reinhardtii group), six species ofGonium and

  11. Lock No. 1 St. Lucie Canal. Guide & connecting walls, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Lock No. 1- St. Lucie Canal. Guide & connecting walls, connecting walls - St. Lucie Canal, St. Lucie Lock No. 1, St. Lucie, Cross State Canal, Okeechobee Intracoastal Waterway, Stuart, Martin County, FL

  12. Classification of resonance Regge trajectories and a modified Mulholland formula

    E-print Network

    D. Sokolovski; E. Akhmatskaya

    2011-05-14

    We employ a simple potential model to analyse the effects which a Regge trajectory, correlating with a bound or a metastable state at zero angular momentum, has on an integral cross section. A straightforward modification of the Mulholland formula of Macek et al is proposed for more efficient separation of the resonance contribution.

  13. Classification of resonance Regge trajectories and a modified Mulholland formula

    NASA Astrophysics Data System (ADS)

    Sokolovski, D.; Akhmatskaya, E.

    2011-08-01

    We employ a simple potential model to analyze the effects which a Regge trajectory, correlating with a bound or a metastable state at zero angular momentum, has on an integral cross section. A straightforward modification of the Mulholland formula of Macek et al. (2004, 2009) [2] is proposed for more efficient separation of the resonance contribution.

  14. Domain walls and chaos in the disordered SOS model

    Microsoft Academic Search

    K. Schwarz; A. Karrenbauer; G. Schehr; H. Rieger

    2009-01-01

    Domain walls, optimal droplets and disorder chaos at zero temperature are studied numerically for the solid-on-solid model on a random substrate. It is shown that the ensemble of random curves represented by the domain walls obeys Schramm's left passage formula with kappa = 4 whereas their fractal dimension is ds = 1.25, and therefore their behavior cannot be described as

  15. Hadrian's Wall

    NSDL National Science Digital Library

    1998-01-01

    Hadrian's Wall is an historical monument built by the Romans in Britain and spans more than 2,000 years of history. Standing as a "reminder of past glories of one of the world's greatest civilisations," the Wall is equipped with museums, forts, and events that bring Roman history to life. Designed by the World Heritage Site, this Web site offers tourist information (such as travel and hotel arrangements) for anyone interested in visiting this historical landmark that ranks along with the great wonders of the world.

  16. Overview: Infant Formula and Fluorosis

    MedlinePLUS

    ... Guidelines Safety Infant Formula and Fluorosis Scientific Reviews Fluoride in Drinking Water Health Effects and Environmental Impact ... Growth Reference Statistics Engineering & Operations Training Programs Other Fluoride Products Links to Other Organizations Materials Infection Control ...

  17. 27 CFR 17.121 - Product formulas.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Product formulas. 17.121 Section 17.121 Alcohol...USED IN MANUFACTURING NONBEVERAGE PRODUCTS Formulas and Samples § 17.121 Product formulas. (a) General. Except as provided...

  18. 27 CFR 17.121 - Product formulas.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Product formulas. 17.121 Section 17.121 Alcohol...USED IN MANUFACTURING NONBEVERAGE PRODUCTS Formulas and Samples § 17.121 Product formulas. (a) General. Except as provided...

  19. Unified Treatment of Explicit and Trace Formulas via Poisson-Newton Formula

    NASA Astrophysics Data System (ADS)

    Muñoz, Vicente; Pérez Marco, Ricardo

    2015-06-01

    We prove that a Poisson-Newton formula, in a broad sense, is associated to each Dirichlet series with a meromorphic extension to the whole complex plane of finite order. These formulas simultaneously generalize the classical Poisson formula and Newton formulas for Newton sums. Classical Poisson formulas in Fourier analysis, explicit formulas in number theory and Selberg trace formulas in Riemannian geometry appear as special cases of our general Poisson-Newton formula.

  20. Quantum computing of semiclassical formulas

    E-print Network

    B. Georgeot; O. Giraud

    2008-01-30

    We show that semiclassical formulas such as the Gutzwiller trace formula can be implemented on a quantum computer more efficiently than on a classical device. We give explicit quantum algorithms which yield quantum observables from classical trajectories, and which alternatively test the semiclassical approximation by computing classical actions from quantum evolution. The gain over classical computation is in general quadratic, and can be larger in some specific cases.

  1. Domain Walls in MQCD and Monge-Ampere Equation

    E-print Network

    Anastasia Volovich

    1998-03-10

    We study Witten's proposal that a domain wall exists in M-theory fivebrane version of QCD (MQCD) and that it can be represented as a supersymmetric three-cycle in G_2 holonomy manifold. It is shown that equations defining the U(1) invariant domain wall for SU(2) group can be reduced to the Monge-Ampere equation. A proof of an algebraic formula of Kaplunovsky, Sonnenschein and Yankielowicz is presented. The formal solution of equations for domain wall is constructed.

  2. Plant biology and pathology \\/ Biologie et pathologie végétales Genetic and molecular basis of grass cell-wall degradability. I. Lignin-cell wall matrix interactions

    Microsoft Academic Search

    John H. Grabber; John Ralph; Catherine Lapierre

    Lignification limits grass cell-wall digestion by herbivores. Lignification is spatially and temporally regulated, and lignin characteristics differ between cell walls, plant tissues, and plant parts. Grass lignins are anchored within walls by ferulate and diferulate cross-links, p-coumarate cyclodimers, and possibly benzyl ester and ether cross-links. Cell-wall degradability is regulated by lignin concentration, cross-linking, and hydrophobicity but not directly by most

  3. Gullied Wall

    NASA Technical Reports Server (NTRS)

    2005-01-01

    13 May 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows gullies on northern wall of a south mid-latitude crater.

    Location near: 35.8oS, 220.9oW Image width: 3 km (1.9 mi) Illumination from: upper left Season: Southern Spring

  4. Great Wall

    Microsoft Academic Search

    P. Murdin

    2000-01-01

    A vast sheet-like aggregation of galaxies that is about 800 million light-years long, 280 million light-years `high', but only about 15-20 million light-years `thick'. One of the largest known structures in the universe, it lies at a distance of about 300 million light-years. The coma cluster, one of the nearest great clusters of galaxies, forms part of the `wall'....

  5. Down to Business - Rewriting Formulas

    NSDL National Science Digital Library

    2011-01-01

    Students often do not see the point in solving formulas for a particular variable when there are no values given. This lab is not designed to teach how to solve literal equations, but rather to give students an understanding of why one might need to do so. This lab has students substitute values into the basic interest formula and then solve for the missing value. After solving several problems in this form, they solve the formula for that variable and then evaluate it by substituting in the given information. Students discover for themselves that it is sometimes better to solve for the variable first and then input the values when solving several problems for the same variable.

  6. Analytical skin friction and heat transfer formula for compressible internal flows

    NASA Technical Reports Server (NTRS)

    Dechant, Lawrence J.; Tattar, Marc J.

    1994-01-01

    An analytic, closed-form friction formula for turbulent, internal, compressible, fully developed flow was derived by extending the incompressible law-of-the-wall relation to compressible cases. The model is capable of analyzing heat transfer as a function of constant surface temperatures and surface roughness as well as analyzing adiabatic conditions. The formula reduces to Prandtl's law of friction for adiabatic, smooth, axisymmetric flow. In addition, the formula reduces to the Colebrook equation for incompressible, adiabatic, axisymmetric flow with various roughnesses. Comparisons with available experiments show that the model averages roughly 12.5 percent error for adiabatic flow and 18.5 percent error for flow involving heat transfer.

  7. Carrageenan analysis. Part 1: Characterisation of the carrageenan test material and stability in swine-adapted infant formula.

    PubMed

    Blakemore, William R; Davis, Steven R; Hroncich, Maggie M; Vurma, Mustafa

    2014-01-01

    A method was developed and validated in support of a 28-day feeding study of swine-adapted infant formula stabilised with carrageenan administered to neonatal piglets. Carrageenan concentrations in the test formulations were 0, 300, 1000 and 2250 mg kg(-1) formula. Extraction of carrageenan from swine-adapted infant formula was achieved by breaking carrageenan-protein cross-linkages using saturated sodium chloride, followed by separation of the non-gelling carrageenan fraction via centrifugation. The extraction of carrageenan from formula was successful with respect to consistent recovery of the non-gelling carrageenan fraction from both test and control formula samples. Molecular weight analysis (Mw) of the recovered carrageenan fractions from the test and control formula samples confirmed that the carrageenan used to manufacture the formula was not degraded during the infant formula production process and subsequent storage for 4 months covering the 28-day piglet dietary feeding study. Carrageenan has excellent stability in infant formulations. PMID:25167218

  8. Recurrence Formulas for Fibonacci Sums

    E-print Network

    Adilson J. V. Brandao; Joao L. Martins

    2008-05-18

    In this article we present a new recurrence formula for a finite sum involving the Fibonacci sequence. Furthermore, we state an algorithm to compute the sum of a power series related to Fibonacci series, without the use of term-by-term differentiation theorem

  9. formula society of automotive engineers

    E-print Network

    Subramanian, Venkat

    on different materials » Computational Fluid Dynamics (CFD) -- accurately modeling fluid flow around models endurance event for the first time in recent history. While learning even more about scheduling completely design and fabricate a formula race car. Through the use of modern computer-aided drafting

  10. formula society of automotive engineers

    E-print Network

    Subramanian, Venkat

    ) -- determining stress distributions via applied forces on different materials » Computational Fluid Dynamics (CFD the team complete the first one year design and build cycle in its history, we feel that we are poised a formula race car. Through the use of modern computer-aided drafting technology, computational force

  11. Vortex Dynamics, Resistivity Formula, and

    Microsoft Academic Search

    Fluctuation-dissipation Theorems

    We investigate the problem of forces on moving vortex in a superfluid or superconductor. The main purpose is to locate the source which leads to the contradictory results in the literature. We establish the connection between this problem to the difficult but well studied subject of resistivity formula in transport theory. The relaxation time approximation used in the force calculation

  12. Developing the Vertex Formula Meaningfully

    ERIC Educational Resources Information Center

    Nebesniak, Amy L.; Burgoa, A. Aaron

    2015-01-01

    As teachers working with students in entry-level algebra classes, authors Amy Nebesniak and A. Aaron Burgoa realized that their instruction was a major factor in how their students viewed mathematics. They often presented students with abstract formulas that seemed to appear out of thin air. One instance occurred while they were teaching students…

  13. Flow-through Cell Separation using Antigen-Antibody Interaction between Cell and Wall Surface

    E-print Network

    Kasagi, Nobuhide

    and antibody-functionalized channel wall. Asymmetric pattern of antibody on the wall surface causes cross-flow, are displaced in the cross-flow direction by 0.8% of the traveling distance. Cross-stream separation-free cell separation method, where the target cells are displaced in the cross-flow direction using

  14. Cooling wall

    SciTech Connect

    Nosenko, V.I. [Triangle Trading and Technology Corp., Laguna Hills, CA (United States)

    1995-07-01

    Protecting the shells of blast furnaces is being resolved by installing cast iron cooling plates. The cooling plates become non-operational in three to five years. The problem is that defects occur in manufacturing the cooling plates. With increased volume and intensity of work placed on blast furnaces, heat on the cast iron cooling plates reduces their reliability that limits the interim repair period of blast furnaces. Scientists and engineers from the Ukraine studied this problem for several years, developing a new method of cooling the blast furnace shaft called the cooling wall. Traditional cast iron plates were replaced by a screen of steel tubes, with the area between the tubes filled with fireproof concrete. Before placing the newly developed furnace shaft into operation, considerable work was completed such as theoretical calculations, design, research of temperature fields and tension. Continual testing over many years confirms the value of this research in operating blast furnaces. The cooling wall works with water cooling as well as vapor cooling and is operating in 14 blast furnaces in the Ukraine and two in Russia, and has operated for as long as 14 years.

  15. 20 CFR 225.3 - PIA computation formulas.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...most common PIA formulas are the Average Indexed Monthly Earnings PIA formula and the...Minimum PIA formula. (b) Average Indexed Monthly Earnings PIA formula. When...Lump-Sum PIA are computed under the Average Indexed Monthly Earnings PIA formula....

  16. 20 CFR 225.3 - PIA computation formulas.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...most common PIA formulas are the Average Indexed Monthly Earnings PIA formula and the...Minimum PIA formula. (b) Average Indexed Monthly Earnings PIA formula. When...Lump-Sum PIA are computed under the Average Indexed Monthly Earnings PIA formula....

  17. 20 CFR 225.3 - PIA computation formulas.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...most common PIA formulas are the Average Indexed Monthly Earnings PIA formula and the...Minimum PIA formula. (b) Average Indexed Monthly Earnings PIA formula. When...Lump-Sum PIA are computed under the Average Indexed Monthly Earnings PIA formula....

  18. 20 CFR 225.3 - PIA computation formulas.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...most common PIA formulas are the Average Indexed Monthly Earnings PIA formula and the...Minimum PIA formula. (b) Average Indexed Monthly Earnings PIA formula. When...Lump-Sum PIA are computed under the Average Indexed Monthly Earnings PIA formula....

  19. 20 CFR 225.3 - PIA computation formulas.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...most common PIA formulas are the Average Indexed Monthly Earnings PIA formula and the...Minimum PIA formula. (b) Average Indexed Monthly Earnings PIA formula. When...Lump-Sum PIA are computed under the Average Indexed Monthly Earnings PIA formula....

  20. Buckling analysis of multi-walled carbon nanotubes: a continuum model accounting for van der Waals interaction

    Microsoft Academic Search

    X. Q. He; S. Kitipornchai; K. M. Liew

    2005-01-01

    Explicit formulas are derived for the van der Waals (vdW) interaction between any two layers of a multi-walled carbon nanotube (CNT). Based on the derived formulas, an efficient algorithm is established for the buckling analysis of multi-walled CNTs, in which individual tubes are modeled as a continuum cylindrical shell. The explicit expressions are also derived for the buckling of double-walled

  1. Roles of Tyrosine-Rich Precursor Glycoproteins and Dityrosine and 3,4-Dihydroxyphenylalanine-Mediated Protein Cross-Linking in Development of the Oocyst Wall in the Coccidian Parasite Eimeria maxima

    Microsoft Academic Search

    Sabina I. Belli; Michael G. Wallach; Catherine Luxford; Michael J. Davies; Nicholas C. Smith

    2003-01-01

    The oocyst wall of apicomplexan parasites protects them from the harsh external environment, preserving their survival prior to transmission to the next host. If oocyst wall formation could be disrupted, then logically, the cycle of disease transmission could be stopped, and strategies to control infection by several organisms of medical and veterinary importance such as Eimeria, Plasmodium, Toxoplasma, Cyclospora, and

  2. Supergravity domain walls

    Microsoft Academic Search

    Mirjam Cvetiÿc; Harald H. Soleng

    1997-01-01

    We review the status of domain walls in N = 1 supergravity theories for the vacuum domain walls as well as dilatonic domain walls. We concentrate on a systematic analysis of the nature of the space-time in these domain wall backgrounds and the special role that supersymmetry is playing in determining the nature of such configurations. Isotropic vacuum domain walls

  3. Simple and Clear Proofs of Stirling's Formula

    ERIC Educational Resources Information Center

    Niizeki, Shozo; Araki, Makoto

    2010-01-01

    The purpose of our article is to show two simpler and clearer methods of proving Stirling's formula than the traditional and conventional ones. The distinction of our method is to use the simple trapezoidal formula.

  4. The Funding of Community Colleges: Formulas & Governance

    ERIC Educational Resources Information Center

    Mullin, Christopher M.; Honeyman, David S.

    2008-01-01

    This study identified governing state entities charged with the development of a funding formula for community colleges. Analysis of the data revealed that 40 states utilized a funding formula. Twenty-one states had a "Higher Education" entity with governing control of the formula, 5 states had a "Community College" entity with distinct funding…

  5. 27 CFR 20.91 - Formula.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 2010-04-01 2010-04-01 false Formula. 20.91 Section 20.91 Alcohol...DISTRIBUTION AND USE OF DENATURED ALCOHOL AND RUM Formulas and Statements of Process § 20.91 Formula. (a) Each article made with...

  6. 27 CFR 20.91 - Formula.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 2011-04-01 2011-04-01 false Formula. 20.91 Section 20.91 Alcohol...DISTRIBUTION AND USE OF DENATURED ALCOHOL AND RUM Formulas and Statements of Process § 20.91 Formula. (a) Each article made with...

  7. Developing Flow and Heat Transfer in a Rectangular Duct with a Moving Wall

    Microsoft Academic Search

    Parviz Payvar; P. Majumdar

    1994-01-01

    Flow and heat transfer are studied numerically in a duct of rectangular cross section with a moving wall. The temperature of the moving wall is assumed to be constant while the other three walls are insulated. This boundary condition has important applications in the design of oil-cooled friction pairs. Results are presented for wall Reynolds numbers of 0, 100, 500,

  8. The zygote cell wall of Chlamydomonas reinhardii: a structural, chemical and immunological approach

    Microsoft Academic Search

    C. Grief; M. A. O'Neill; P. J. Shaw

    1987-01-01

    The zygote cell wall of Chlamydomonas reinhardii has been studied using structural, chemical and immunological methods. Monoclonal antibodies and polyclonal antisera that were originally raised to the major hydroxyproline-rich glycoproteins of the vegetative cell wall were used to probe the zygote wall for common antigenic components. These antibodies cross-reacted strongly and specifically with components of the zygote cell wall, and

  9. Self-assembly of the plant cell wall requires an extensin scaffold

    E-print Network

    Chen, Liwei

    Self-assembly of the plant cell wall requires an extensin scaffold Maura C. Cannon* , Kimberly with the mother cell wall remains unclear. A lethal Arabidopsis embryogenesis mutant designated root-, shoot located in the nascent cross wall or ``cell plate'' and also in mature cell walls. Here we report

  10. Stability of Thin-Walled Tubes Under Torsion

    NASA Technical Reports Server (NTRS)

    Donnell, L H

    1935-01-01

    In this report a theoretical solution is developed for the torsion on a round thin-walled tube for which the walls become unstable. The results of this theory are given by a few simple formulas and curves which cover all cases. The differential equations of equilibrium are derived in a simpler form than previously found, it being shown that many items can be neglected.

  11. The paradox of pressure vessel wall thickness calculation

    NASA Astrophysics Data System (ADS)

    Bernard, Marc

    1986-05-01

    The calculation of pressure vessel wall thickness is made with formulae usually imposed by national codes. Although the Lamés formulae give actual stresses and leave the decision on the safety factor to the designer, these codes impose certain safety factors in the calculation of allowable stresses, or even include the safety factor in the wall thickness calculation formula. If we take as an example a pressure vessel made of 316 SS with 125 mm ID, and designed for 400 bar, the methods of calculation which are most commonly used are: -Lamé -Stoomwezen (Dutch Code), -AD Merkblatt (German Code), -CODAP (French Code), -ASME Code Section VIII, Division 1 or 2 (USA) . Obviously, the thicker the wall, the lower the stresses due to the pressure. However, some other factors need to be considered, the most important of them probably being thermal stresses. The thicker the wall, the higher the thermal stresses, all other parameters being equal. When such a vessel is heated from the outside, a temperature gradient is created across the wall and the temperature is higher on the outside than the inside. Consequently, the thermal stresses are in compression on the outside, and in tension on the inside, and come in addition to the pressure stresses. The designer must choose the wall thickness so as to minimize the total of pressure and thermal stresses.

  12. 27 CFR 26.55 - Previously approved formulas.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 false Previously approved formulas. 26.55 Section 26.55 Alcohol...PUERTO RICO AND THE VIRGIN ISLANDS Formulas for Products From Puerto Rico § 26.55 Previously approved formulas. Any formula approved on...

  13. 27 CFR 21.24 - Formula No. 20.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 20. 21.24 Section 21.24...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Completely Denatured Alcohol Formulas § 21.24 Formula No. 20....

  14. 24 CFR 990.110 - Operating fund formula.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 2010-04-01 false Operating fund formula. 990.110 Section 990.110 Housing...FUND PROGRAM Purpose, Applicability, Formula, and Definitions § 990.110 Operating fund formula. (a) General formula. (1)...

  15. 27 CFR 26.55 - Previously approved formulas.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 false Previously approved formulas. 26.55 Section 26.55 Alcohol...PUERTO RICO AND THE VIRGIN ISLANDS Formulas for Products From Puerto Rico § 26.55 Previously approved formulas. Any formula approved on...

  16. 27 CFR 21.24 - Formula No. 20.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 20. 21.24 Section 21.24...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Completely Denatured Alcohol Formulas § 21.24 Formula No. 20....

  17. 27 CFR 17.137 - Formulas disapproved for drawback.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 2010-04-01 2010-04-01 false Formulas disapproved for drawback. 17.137 Section...USED IN MANUFACTURING NONBEVERAGE PRODUCTS Formulas and Samples Approval of Formulas § 17.137 Formulas disapproved for...

  18. 27 CFR 26.225 - Previously approved formulas.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 false Previously approved formulas. 26.225 Section 26.225...PUERTO RICO AND THE VIRGIN ISLANDS Formulas for Products From the Virgin Islands § 26.225 Previously approved formulas. Any formula approved on...

  19. 27 CFR 26.225 - Previously approved formulas.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 false Previously approved formulas. 26.225 Section 26.225...PUERTO RICO AND THE VIRGIN ISLANDS Formulas for Products From the Virgin Islands § 26.225 Previously approved formulas. Any formula approved on...

  20. 24 CFR 990.110 - Operating fund formula.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 2011-04-01 false Operating fund formula. 990.110 Section 990.110 Housing...FUND PROGRAM Purpose, Applicability, Formula, and Definitions § 990.110 Operating fund formula. (a) General formula. (1)...

  1. Building Stone Walls

    NSDL National Science Digital Library

    In this activity, students will learn to identify the distinguishing characteristics of a stone wall. They will first draw a picture of a stone wall from memory, then go outside to view and sketch a real wall. Following the field activity, they will construct models of walls using modeling clay. A recipe for the clay ('model magic') is provided.

  2. Wall surveyor project report

    SciTech Connect

    Mullenhoff, D.J.; Johnston, B.C.; Azevedo, S.G.

    1996-02-22

    A report is made on the demonstration of a first-generation Wall Surveyor that is capable of surveying the interior and thickness of a stone, brick, or cement wall. LLNL`s Micropower Impulse Radar is used, based on emitting and detecting very low amplitude and short microwave impulses (MIR rangefinder). Six test walls were used. While the demonstrator MIR Wall Surveyor is not fieldable yet, it has successfully scanned the test walls and produced real-time images identifying the walls. It is planned to optimize and package the evaluation wall surveyor into a hand held unit.

  3. Luttinger liquid behavior in single-wall nanotubes

    NASA Astrophysics Data System (ADS)

    Komnik, Andrei; Egger, Reinhold

    1999-09-01

    Transport properties of metallic single-wall nanotubes are examined based on the Luttinger liquid theory. Focusing on a nanotube transistor setup, the linear conductance is computed from the Kubo formula using perturbation theory in the lead-tube tunnel conductances. For sufficiently long nanotubes and high temperature, phonon backscattering should lead to an anomalous temperature dependence of the resistivity.

  4. Elastic properties of single-walled carbon nanotubes

    Microsoft Academic Search

    V. N. Popov; V. E. Van Doren; M. Balkanski

    2000-01-01

    Analytical expressions for the velocities of the longitudinal and the torsional sound waves in single-walled carbon nanotubes are derived using Born's perturbation technique within a lattice-dynamical model. These expressions are compared to the formulas for the velocities of the sound waves in an elastic hollow cylinder from the theory of elasticity to obtain analytical expressions for the Young's and shear

  5. 7. REMAINS OF PLANK WALL WITHIN CANAL CONSTRUCTED TO PROTECT ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. REMAINS OF PLANK WALL WITHIN CANAL CONSTRUCTED TO PROTECT OUTSIDE CANAL BANK, LOOKING SOUTHWEST. NOTE CROSS SUPPORT POLES EXTENDING TO HILLSIDE. - Snake River Ditch, Headgate on north bank of Snake River, Dillon, Summit County, CO

  6. Potential of a plasma bound between two biased walls

    SciTech Connect

    Loizu, J.; Dominski, J.; Ricci, P.; Theiler, C. [Centre de Recherches en Physique des Plasmas-Ecole Polytechnique Federale de Lausanne, Association EURATOM-Confederation Suisse, CH-1015 Lausanne (Switzerland)

    2012-08-15

    An analytical study is presented for an one-dimensional, steady-state plasma bound between two perfectly absorbing walls that are biased with respect to each other. Starting from a description of the plasma sheaths formed at both walls, an expression relating the bulk plasma potential to the wall currents is derived, showing that the plasma potential undergoes an abrupt transition when currents cross a critical value. This result is confirmed by numerical simulations performed with a particle-in-cell code.

  7. A Choice of a New Funding Formula

    ERIC Educational Resources Information Center

    Hancock, Kenneth

    2008-01-01

    This report examines the fiscal neutrality of three funding formulas that have been proposed to replace the current funding formula for Oklahoma's common schools in an attempt to have greater equity in the distribution of funds to the various districts. Using data from SY-03 to SY-07, calculations of state aid for the 540- districts and fiscal…

  8. Funding the Formula Adequately in Oklahoma

    ERIC Educational Resources Information Center

    Hancock, Kenneth

    2015-01-01

    This report is a longevity, simulational study that looks at how the ratio of state support to local support effects the number of school districts that breaks the common school's funding formula which in turns effects the equity of distribution to the common schools. After nearly two decades of adequately supporting the funding formula, Oklahoma…

  9. Review of "Weighted Student Formula Yearbook 2009"

    ERIC Educational Resources Information Center

    Baker, Bruce

    2009-01-01

    The new "Weighted Student Formula Yearbook 2009" from the Reason Foundation provides a simple framework for touting the successes of states and urban school districts that grant greater fiscal autonomy to schools. The report defines the Weighted Student Formula (WSF) reform extremely broadly, presenting a variety of reforms under the WSF umbrella.…

  10. Universitat Regensburg A conductor formula for completed

    E-print Network

    Regensburg, Universität - Naturwissenschaftliche Fakultät I

    Universit¨at Regensburg Mathematik A conductor formula for completed group algebras Andreas Nickel Preprint Nr. 06/2012 #12;A conductor formula for completed group algebras Andreas Nickel )>IJH=?J Let o irreducible characters of G with open kernel up to a certain explicit equivalence relation. Moreover, w

  11. Alternative Derivations for the Poisson Integral Formula

    ERIC Educational Resources Information Center

    Chen, J. T.; Wu, C. S.

    2006-01-01

    Poisson integral formula is revisited. The kernel in the Poisson integral formula can be derived in a series form through the direct BEM free of the concept of image point by using the null-field integral equation in conjunction with the degenerate kernels. The degenerate kernels for the closed-form Green's function and the series form of Poisson…

  12. A Partition Formula for Fibonacci Numbers

    Microsoft Academic Search

    Philipp Fahr; Claus Michael Ringerl

    2008-01-01

    We present a partition formula for the even index Fibonacci numbers. The formula is motivated by the appearance of these Fibonacci numbers in the representation theory of the socalled 3-Kronecker quiver, i.e., the oriented graph with two vertices and three arrows in the same direction.

  13. The health implications of soy infant formula

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Soy formula (SF) has been fed to millions of infants worldwide. It has been shown to promote growth and development as well as milk-based formula (MF) does. Controversy has developed over the adequacy and safety of SF. Most concerns are based on in vivo and in vitro data that raise the possibility o...

  14. How to Save Money on Infant Formula

    MedlinePLUS

    ... to save money on infant formula: DO NOT buy just one type of baby bottle at first. Try a few different types to see which kind your baby likes and will use. Buy powdered formula. It is much less expensive than ...

  15. ON LOBACHEVSKY'S TRIGONOMETRIC FORMULAE ATHANASE PAPADOPOULOS

    E-print Network

    Paris-Sud XI, Université de

    developed a large set of analytical and geometrical theorems in non-Euclidean geometry using these formulae classification: 01-99 ; 53-02 ; 53-03 ; 53A35. Keywords: Lobachevsky geometry ; non-Euclidean geometry ; hyper- bolic geometry ; non-Euclidean trigonometric formulae ; models of hy- perbolic space ; horosphere

  16. Architecture and Biosynthesis of the Saccharomyces cerevisiae Cell Wall

    PubMed Central

    Orlean, Peter

    2012-01-01

    The wall gives a Saccharomyces cerevisiae cell its osmotic integrity; defines cell shape during budding growth, mating, sporulation, and pseudohypha formation; and presents adhesive glycoproteins to other yeast cells. The wall consists of ?1,3- and ?1,6-glucans, a small amount of chitin, and many different proteins that may bear N- and O-linked glycans and a glycolipid anchor. These components become cross-linked in various ways to form higher-order complexes. Wall composition and degree of cross-linking vary during growth and development and change in response to cell wall stress. This article reviews wall biogenesis in vegetative cells, covering the structure of wall components and how they are cross-linked; the biosynthesis of N- and O-linked glycans, glycosylphosphatidylinositol membrane anchors, ?1,3- and ?1,6-linked glucans, and chitin; the reactions that cross-link wall components; and the possible functions of enzymatic and nonenzymatic cell wall proteins. PMID:23135325

  17. Tube formulas for self-similar fractals

    E-print Network

    Michel L. Lapidus; Erin P. J. Pearse

    2007-11-01

    Tube formulas (by which we mean an explicit formula for the volume of an $\\epsilon$-neighbourhood of a subset of a suitable metric space) have been used in many situations to study properties of the subset. For smooth submanifolds of Euclidean space, this includes Weyl's celebrated results on spectral asymptotics, and the subsequent relation between curvature and spectrum. Additionally, a tube formula contains information about the dimension and measurability of rough sets. In convex geometry, the tube formula of a convex subset of Euclidean space allows for the definition of certain curvature measures. These measures describe the curvature of sets which are not too irregular to support derivatives. In this survey paper, we describe some recent advances in the development of tube formulas for self-similar fractals, and their applications and connections to the other topics mentioned here.

  18. Abdominal wall surgery

    MedlinePLUS

    Abdominal wall surgery is surgery that improves the appearance of flabby, stretched-out abdominal (belly) muscles and skin. It ... tummy tuck" to more complicated, extensive surgery. Abdominal wall surgery is not the same as liposuction, which ...

  19. Analysis of left ventricular regional wall motion in normal neonates

    Microsoft Academic Search

    Ayumi Miyazaki; Fukiko Ichida; Ikuo Hashimoto; Shinichi Tsubata; Toshio Okada

    1992-01-01

    Objective—To investigate neonatal circulatory change by quantitative analysis of left ventricular regional wall motion.Design—Random prospective study.Setting—Department of paediatrics in a teaching hospital.Participants—66 neonates born after a normal pregnancy, labour, and delivery.Interventions—Quantitative analysis of left ventricular regional wall motion was performed on cross sectional echocardiograms. M mode, cross sectional, and Doppler echocardiograms were obtained simultaneously.Main outcome measures—Manually traced endocardial contours at

  20. Observing Stone Walls

    NSDL National Science Digital Library

    In this lesson, students will learn why and how stone walls were built. A prior knowledge of New England colonists and the history of New England is helpful. After a directed reading and discussion, they will take a nature walk to an area where they can examine a stone wall. The students will then use notebook and pencil to sketch the wall and make observations of the stones, the plants growing nearby, and other materials they see around the wall.

  1. Tailoring wall permeabilities for enhanced filtration

    NASA Astrophysics Data System (ADS)

    Herterich, J. G.; Vella, D.; Field, R. W.; Hankins, N. P.; Griffiths, I. M.

    2015-05-01

    The build-up of contaminants at the wall of cross-flow membrane filtration systems can be detrimental to the operation of such systems because of, amongst other things, the osmotic backflow it may induce. In this paper, we propose a strategy to avoid the negative effects of backflow due to osmosis by using 2D channels bounded by walls with a combination of permeable and impermeable segments. We show that preventing flow through the final portion of the channel can increase the efficiency of filtration and we determine the optimal fraction occupied by the permeable wall that maximizes efficiency. Our analysis uses a combination of numerical techniques and asymptotic analysis in the limit of low wall permeabilities. Finally, we consider how the energy cost of filtration depends on the Péclet number and show that the energy cost per unit of filtered water may be minimized by appropriately choosing both the Péclet number and the permeable-region fraction.

  2. Domain Walls on Singularities

    E-print Network

    Edi Halyo

    2009-10-28

    We describe domain walls that live on $A_2$ and $A_3$ singularities. The walls are BPS if the singularity is resolved and non--BPS if it is deformed and fibered. We show that these domain walls may interpolate between vacua that support monopoles and/or vortices.

  3. Consider the Walls

    ERIC Educational Resources Information Center

    Tarr, Patricia

    2004-01-01

    This article critically examines classroom walls from four perspectives: (1) reading the environment; (2) walls that silence; (3) the purpose of display; and (4) aesthetics. The author offers some suggestions for teachers to consider when purchasing materials and in planning how to use classroom walls to enhance the educational setting. She…

  4. Description of Stone Walls

    NSDL National Science Digital Library

    This outline provides a list of key terms used to describe stone walls. The definitions for each term can be found in the corresponding chapter and section of the book 'Exploring Stone Walls'. Users can use the outline as a checklist, marking off the terms that best describe the wall they are investigating.

  5. Halogenation of microcapsule walls

    NASA Technical Reports Server (NTRS)

    Davis, T. R.; Schaab, C. K.; Scott, J. C.

    1972-01-01

    Procedure for halogenation of confining walls of both gelatin and gelatin-phenolic resin capsules is similar to that used for microencapsulation. Ten percent halogen content renders capsule wall nonburning; any higher content enhances flame-retardant properties of selected internal phase material. Halogenation decreases permeability of wall material to encapsulated materials.

  6. Elimination of the twist distortion in IVUS and CAG image fusion based on the Frenet-Serret formulas

    NASA Astrophysics Data System (ADS)

    Li, Hongxiao; Zhang, Zhaoxia; Chen, Xiaodong; Yu, Daoyin

    2010-11-01

    Cardiovascular disease can be diagnosed at higher accuracy by the fusion of IVUS (Intravascular Ultrasound) and CAG (Coronary Angiography) data. In the IVUS images acquisition process, pull-back path of the ultrasonic probe will twist due to intravascular blood flow and friction with vascular wall, which causes image distortion in the fusion of such IVUS images. In this paper, a new method used for reducing the twist between adjacent frames of IVUS is presented. First, we establish a rough perspective projection imaging model from the crossing information of two almost perpendicular projective angiography images. Then we use a discrete approximation of the Frenet-Serret formulas to calculate IVUS frames' relative twist by sequential triangulation method and correct the twist. Finally, coronary lumen data extracted from the corrected IVUS images are added to 3D transducer paths which are reconstructed by the model mentioned above. Reconstruction of the coronary artery which contains the lumen information of IVUS removes blind spots in CAG and provides a full view of artery which is absent in IVUS images.

  7. Effects of charge exchange cross section on ENAs

    Microsoft Academic Search

    K. Scherer; H. Fichtner

    2006-01-01

    A crucial point in interpreting the data of the upcoming IBEX mission is a good knowledge of the charge exchange cross section between shocked solar wind protons and interstellar hydrogen There exists at least four formulae which describe the data for the respective cross section We will discuss the effects of the different cross sections for the ENA flux at

  8. Lesson 26: The Distance and Midpoint Formulas

    NSDL National Science Digital Library

    2011-01-01

    The lesson begins by associating the distance between two points with the right triangle that may be formed by joining the points and extending horizontal and vertical lines through the points. This linking is generalized to derive the distance formula for any two points in the plane. The midpoint formula is then derived by taking the average of the coordinates of the two points. Using the distance formula, the equation for circle is derived and then examples follow for finding the equation of a given circle.

  9. Geography of Stone Walls

    NSDL National Science Digital Library

    This resource provides an overview of the distribution and occurrence of stone walls in New England. Topics include what constitutes a stone wall province and three critical factors in the occurrence of stone walls: bedrock geology, glacial history, and land use history. Users can determine the type of stone wall in any given area by using the maps to determine its location, determine the type of bedrock, type of surface materials, and type of settlement history for that spot. Referring to the text of 'Exploring Stone Walls', they can determine which type of stone wall province contains those types of rock and surface process and read the description of what the most common type of stone walls should be in that area.

  10. Wall of fundamental constants

    SciTech Connect

    Olive, Keith A. [William I. Fine Theoretical Physics Institute, University of Minnesota, Minneapolis, Minnesota, 55455 (United States); School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota, 55455 (United States); Peloso, Marco [School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota, 55455 (United States); Uzan, Jean-Philippe [Institut d'Astrophysique de Paris, UMR-7095 du CNRS, Universite Pierre et Marie Curie, 98 bis bd Arago, 75014 Paris (France); Department of Mathematics and Applied Mathematics, Cape Town University, Rondebosch 7701 (South Africa); National Institute for Theoretical Physics (NITheP), Stellenbosch 7600 (South Africa)

    2011-02-15

    We consider the signatures of a domain wall produced in the spontaneous symmetry breaking involving a dilatonlike scalar field coupled to electromagnetism. Domains on either side of the wall exhibit slight differences in their respective values of the fine-structure constant, {alpha}. If such a wall is present within our Hubble volume, absorption spectra at large redshifts may or may not provide a variation in {alpha} relative to the terrestrial value, depending on our relative position with respect to the wall. This wall could resolve the contradiction between claims of a variation of {alpha} based on Keck/Hires data and of the constancy of {alpha} based on Very Large Telescope data. We derive the properties of the wall and the parameters of the underlying microscopic model required to reproduce the possible spatial variation of {alpha}. We discuss the constraints on the existence of the low-energy domain wall and describe its observational implications concerning the variation of the fundamental constants.

  11. Fluidized wall for protecting fusion chamber walls

    DOEpatents

    Maniscalco, James A. (Danville, CA); Meier, Wayne R. (Livermore, CA)

    1982-01-01

    Apparatus for protecting the inner wall of a fusion chamber from microexplosion debris, x-rays, neutrons, etc. produced by deuterium-tritium (DT) targets imploded within the fusion chamber. The apparatus utilizes a fluidized wall similar to a waterfall comprising liquid lithium or solid pellets of lithium-ceramic, the waterfall forming a blanket to prevent damage of the structural materials of the chamber.

  12. Van der Waals interaction between a microparticle and a single-wall carbon nanotube

    E-print Network

    E. V. Blagov; G. L. Klimchitskaya; V. M. Mostepanenko

    2007-04-13

    The Lifshitz-type formulas describing the free energy and the force of the van der Waals interaction between an atom (molecule) and a single-wall carbon nanotube are obtained. The single-wall nanotube is considered as a cylindrical sheet carrying a two-dimensional free electron gas with appropriate boundary conditions on the electromagnetic field. The obtained formulas are used to calculate the van der Waals free energy and force between a hydrogen atom (molecule) and single-wall carbon nanotubes of different radia. Comparison studies of the van der Waals interaction of hydrogen atoms with single- and multi-wall carbon nanotubes show that depending on atom-nanotube separation distance the idealization of graphite dielectric permittivity is already applicable to nanotubes with only two or three walls.

  13. Copyright 2004 by the author(s). Published here under licence by The Resilience Alliance. Shine, R., M. Lemaster, M. Wall, T. Langkilde, and R. Mason. 2004. Why did the snake cross the road?

    E-print Network

    Mason, Robert T.

    ? Effects of roads on movement and location of mates by garter snakes (Thamnophis sirtalis parietalis) gravel road on the behavior and trail-following abilities of garter snakes (Thamnophis sirtalis the Snake Cross the Road? Effects of Roads on Movement and Location of Mates by Garter Snakes (Thamnophis

  14. Traction Control System for Formula Student Electric

    NASA Astrophysics Data System (ADS)

    Houf, Z.; ?e?ovský, Z.; Hlinovský, V.

    This paper deals with design of traction control of Formula Student Electric Car. There will introduced new conception of formula traction system and its application to the Formula car. In next season we would like to use 2 motors, each of them will be directly connected to its wheel. This solution needs precise control of them to provide high dynamics and great ability to ride curves in high speeds. Using the same torque on each wheel brings problem when one of wheel loss the traction ability. Some slip could happen and the unexpected lateral movement becomes. There will described the mathematic model of formula car. To reduce slips etc. we will publish the theoretical algorithm that reduces or increases torques on rear wheels to stabilize the car. There will be described what states have to be measured and evaluated. Also places where the sensors will be placed will be shown.

  15. Product formulas for exponentials of commutators

    NASA Astrophysics Data System (ADS)

    Childs, Andrew M.; Wiebe, Nathan

    2013-06-01

    We provide a recursive method for systematically constructing product formula approximations to exponentials of commutators, giving approximations that are accurate to arbitrarily high order. Using these formulas, we show how to approximate unitary exponentials of (possibly nested) commutators using exponentials of the elementary operators, and we upper bound the number of elementary exponentials needed to implement the desired operation within a given error tolerance. By presenting an algorithm for quantum search using evolution according to a commutator, we show that the scaling of the number of exponentials in our product formulas with the evolution time is nearly optimal. Finally, we discuss applications of our product formulas to quantum control and to implementing anticommutators, providing new methods for simulating many-body interaction Hamiltonians.

  16. Money Ivestigation 1 (solving linear equations, formulas)

    NSDL National Science Digital Library

    2011-01-01

    A hands-on activity to help students understand four basic binary operations in algebraic expressions, solving linear equations in 1 variable, and solving a formula for an indicated variable, using value of collections of coins.

  17. 27 CFR 25.57 - Formula information.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...the flavor was added (that is, before, during, or after fermentation). (3) For formulas that include the use of flavors...state the alcohol content of the fermented product after fermentation and the alcohol content of the finished product....

  18. 27 CFR 25.57 - Formula information.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...the flavor was added (that is, before, during, or after fermentation). (3) For formulas that include the use of flavors...state the alcohol content of the fermented product after fermentation and the alcohol content of the finished product....

  19. 27 CFR 25.57 - Formula information.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...the flavor was added (that is, before, during, or after fermentation). (3) For formulas that include the use of flavors...state the alcohol content of the fermented product after fermentation and the alcohol content of the finished product....

  20. 27 CFR 25.57 - Formula information.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...the flavor was added (that is, before, during, or after fermentation). (3) For formulas that include the use of flavors...state the alcohol content of the fermented product after fermentation and the alcohol content of the finished product....

  1. 27 CFR 25.57 - Formula information.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...the flavor was added (that is, before, during, or after fermentation). (3) For formulas that include the use of flavors...state the alcohol content of the fermented product after fermentation and the alcohol content of the finished product....

  2. 27 CFR 21.42 - Formula No. 17.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 17. 21.42 Section 21.42...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.42...

  3. 27 CFR 21.53 - Formula No. 27-A.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 27-A. 21.53 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.53...

  4. 27 CFR 21.36 - Formula No. 3-B.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 3-B. 21.36 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.36...

  5. 27 CFR 21.79 - Formula No. 44.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 44. 21.79 Section 21.79...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.79...

  6. 27 CFR 21.49 - Formula No. 23-H.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 23-H. 21.49 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.49...

  7. 27 CFR 21.42 - Formula No. 17.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 17. 21.42 Section 21.42...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.42...

  8. 27 CFR 21.56 - Formula No. 29.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 29. 21.56 Section 21.56...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.56...

  9. 27 CFR 21.49 - Formula No. 23-H.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 23-H. 21.49 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.49...

  10. 27 CFR 21.70 - Formula No. 39-A.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 39-A. 21.70 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.70...

  11. 27 CFR 21.81 - Formula No. 46.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 46. 21.81 Section 21.81...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.81...

  12. 24 CFR 990.195 - Calculation of formula income.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 2010-04-01 false Calculation of formula income. 990.195 Section 990.195...HOUSING OPERATING FUND PROGRAM Calculating Formula Income § 990.195 Calculation of formula income. (a) General. For the...

  13. 75 FR 32495 - Operating Fund Subsidies Allocation Formula

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-08

    ...Operating Fund Subsidies Allocation Formula AGENCY: Office of the Chief Information...which assistance is determined using a formula approach under the Operating Fund Program...Operating Fund Subsidies Allocation Formula. OMB Approval Number:...

  14. 27 CFR 21.73 - Formula No. 39-D.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 39-D. 21.73 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.73...

  15. 24 CFR 990.160 - Overview of calculating formula expenses.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 false Overview of calculating formula expenses. 990.160 Section 990.160...HOUSING OPERATING FUND PROGRAM Calculating Formula Expenses § 990.160 Overview of calculating formula expenses. (a) General....

  16. 24 CFR 990.160 - Overview of calculating formula expenses.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 false Overview of calculating formula expenses. 990.160 Section 990.160...HOUSING OPERATING FUND PROGRAM Calculating Formula Expenses § 990.160 Overview of calculating formula expenses. (a) General....

  17. 27 CFR 21.48 - Formula No. 23-F.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 23-F. 21.48 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.48...

  18. 27 CFR 24.81 - Filing of formulas.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Filing of formulas. 24.81 Section 24.81 Alcohol, Tobacco...Administrative and Miscellaneous Provisions Formulas § 24.81 Filing of formulas. The proprietor shall on each...

  19. 27 CFR 5.28 - Adoption of predecessor's formulas.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 false Adoption of predecessor's formulas. 5.28 Section 5.28 Alcohol...LABELING AND ADVERTISING OF DISTILLED SPIRITS Formulas § 5.28 Adoption of predecessor's formulas. The adoption by a successor of...

  20. 27 CFR 21.39 - Formula No. 6-B.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 6-B. 21.39 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.39...

  1. 27 CFR 17.125 - Adoption of formulas and processes.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Adoption of formulas and processes. 17.125 Section 17...USED IN MANUFACTURING NONBEVERAGE PRODUCTS Formulas and Samples § 17.125 Adoption of formulas and processes. (a) Adoption of...

  2. 27 CFR 21.50 - Formula No. 25.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 25. 21.50 Section 21.50...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.50...

  3. 27 CFR 21.50 - Formula No. 25.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 25. 21.50 Section 21.50...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.50...

  4. 27 CFR 21.59 - Formula No. 32.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 32. 21.59 Section 21.59...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.59...

  5. 27 CFR 21.78 - Formula No. 42.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 42. 21.78 Section 21.78...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.78...

  6. 27 CFR 5.28 - Adoption of predecessor's formulas.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 false Adoption of predecessor's formulas. 5.28 Section 5.28 Alcohol...LABELING AND ADVERTISING OF DISTILLED SPIRITS Formulas § 5.28 Adoption of predecessor's formulas. The adoption by a successor of...

  7. 27 CFR 21.46 - Formula No. 22.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 22. 21.46 Section 21.46...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.46...

  8. 27 CFR 21.48 - Formula No. 23-F.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 23-F. 21.48 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.48...

  9. 27 CFR 26.220 - Formulas for liquors.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formulas for liquors. 26.220 Section 26...FROM PUERTO RICO AND THE VIRGIN ISLANDS Formulas for Products From the Virgin Islands § 26.220 Formulas for liquors. (a) Distilled...

  10. 27 CFR 21.55 - Formula No. 28-A.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 28-A. 21.55 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.55...

  11. 27 CFR 21.61 - Formula No. 35.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 35. 21.61 Section 21.61...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.61...

  12. 27 CFR 17.126 - Formulas for intermediate products.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 2010-04-01 2010-04-01 false Formulas for intermediate products. 17.126 Section...USED IN MANUFACTURING NONBEVERAGE PRODUCTS Formulas and Samples § 17.126 Formulas for intermediate products. (a) The...

  13. 27 CFR 21.44 - Formula No. 19.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 19. 21.44 Section 21.44...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.44...

  14. 27 CFR 21.46 - Formula No. 22.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 22. 21.46 Section 21.46...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.46...

  15. 27 CFR 17.122 - Amended or revised formulas.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 false Amended or revised formulas. 17.122 Section 17.122 Alcohol...IN MANUFACTURING NONBEVERAGE PRODUCTS Formulas and Samples § 17.122 Amended or revised formulas. Except as provided in this...

  16. 27 CFR 21.66 - Formula No. 38-C.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 38-C. 21.66 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.66...

  17. 27 CFR 21.52 - Formula No. 27.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 27. 21.52 Section 21.52...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.52...

  18. 27 CFR 21.39 - Formula No. 6-B.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 6-B. 21.39 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.39...

  19. 27 CFR 17.122 - Amended or revised formulas.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 false Amended or revised formulas. 17.122 Section 17.122 Alcohol...IN MANUFACTURING NONBEVERAGE PRODUCTS Formulas and Samples § 17.122 Amended or revised formulas. Except as provided in this...

  20. 27 CFR 21.79 - Formula No. 44.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 44. 21.79 Section 21.79...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.79...

  1. 27 CFR 21.67 - Formula No. 38-D.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 38-D. 21.67 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.67...

  2. 27 CFR 21.45 - Formula No. 20.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 20. 21.45 Section 21.45...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.45...

  3. 27 CFR 21.80 - Formula No. 45.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 45. 21.80 Section 21.80...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.80...

  4. 24 CFR 990.195 - Calculation of formula income.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 2011-04-01 false Calculation of formula income. 990.195 Section 990.195...HOUSING OPERATING FUND PROGRAM Calculating Formula Income § 990.195 Calculation of formula income. (a) General. For the...

  5. 27 CFR 21.38 - Formula No. 4.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 4. 21.38 Section 21.38...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.38...

  6. 27 CFR 21.64 - Formula No. 37.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 37. 21.64 Section 21.64...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.64...

  7. 27 CFR 21.81 - Formula No. 46.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 46. 21.81 Section 21.81...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.81...

  8. 27 CFR 21.60 - Formula No. 33.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 33. 21.60 Section 21.60...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.60...

  9. 27 CFR 21.34 - Formula No. 2-C.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 2-C. 21.34 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.34...

  10. 27 CFR 26.220 - Formulas for liquors.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formulas for liquors. 26.220 Section 26...FROM PUERTO RICO AND THE VIRGIN ISLANDS Formulas for Products From the Virgin Islands § 26.220 Formulas for liquors. (a) Distilled...

  11. 27 CFR 21.80 - Formula No. 45.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 45. 21.80 Section 21.80...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.80...

  12. 27 CFR 21.43 - Formula No. 18.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 18. 21.43 Section 21.43...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.43...

  13. 27 CFR 21.66 - Formula No. 38-C.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 38-C. 21.66 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.66...

  14. 27 CFR 21.67 - Formula No. 38-D.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 38-D. 21.67 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.67...

  15. 27 CFR 24.81 - Filing of formulas.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Filing of formulas. 24.81 Section 24.81 Alcohol, Tobacco...Administrative and Miscellaneous Provisions Formulas § 24.81 Filing of formulas. The proprietor shall on each...

  16. 27 CFR 21.52 - Formula No. 27.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 27. 21.52 Section 21.52...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.52...

  17. 27 CFR 21.61 - Formula No. 35.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 35. 21.61 Section 21.61...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.61...

  18. 27 CFR 21.36 - Formula No. 3-B.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 3-B. 21.36 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.36...

  19. 27 CFR 17.126 - Formulas for intermediate products.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 2011-04-01 2011-04-01 false Formulas for intermediate products. 17.126 Section...USED IN MANUFACTURING NONBEVERAGE PRODUCTS Formulas and Samples § 17.126 Formulas for intermediate products. (a) The...

  20. 28 CFR 31.3 - Formula grant plan and applications.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 2011-07-01 2011-07-01 false Formula grant plan and applications. 31.3 Section...DEPARTMENT OF JUSTICE OJJDP GRANT PROGRAMS Formula Grants General Provisions § 31.3 Formula grant plan and applications....

  1. 27 CFR 21.45 - Formula No. 20.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 20. 21.45 Section 21.45...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.45...

  2. 27 CFR 21.53 - Formula No. 27-A.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 27-A. 21.53 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.53...

  3. 27 CFR 21.43 - Formula No. 18.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 18. 21.43 Section 21.43...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.43...

  4. 27 CFR 21.55 - Formula No. 28-A.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 28-A. 21.55 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.55...

  5. 28 CFR 31.3 - Formula grant plan and applications.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 2010-07-01 2010-07-01 false Formula grant plan and applications. 31.3 Section...DEPARTMENT OF JUSTICE OJJDP GRANT PROGRAMS Formula Grants General Provisions § 31.3 Formula grant plan and applications....

  6. 27 CFR 21.60 - Formula No. 33.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 33. 21.60 Section 21.60...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.60...

  7. 27 CFR 21.34 - Formula No. 2-C.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 2-C. 21.34 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.34...

  8. 27 CFR 21.44 - Formula No. 19.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 19. 21.44 Section 21.44...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.44...

  9. 27 CFR 17.125 - Adoption of formulas and processes.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Adoption of formulas and processes. 17.125 Section 17...USED IN MANUFACTURING NONBEVERAGE PRODUCTS Formulas and Samples § 17.125 Adoption of formulas and processes. (a) Adoption of...

  10. 27 CFR 21.73 - Formula No. 39-D.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 39-D. 21.73 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.73...

  11. 27 CFR 21.70 - Formula No. 39-A.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 39-A. 21.70 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.70...

  12. 27 CFR 21.51 - Formula No. 25-A.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 25-A. 21.51 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.51...

  13. 27 CFR 21.51 - Formula No. 25-A.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 25-A. 21.51 Section 21...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.51...

  14. 27 CFR 21.38 - Formula No. 4.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Formula No. 4. 21.38 Section 21.38...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.38...

  15. 27 CFR 21.64 - Formula No. 37.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula No. 37. 21.64 Section 21.64...DEPARTMENT OF THE TREASURY LIQUORS FORMULAS FOR DENATURED ALCOHOL AND RUM Specially Denatured Spirits Formulas and Authorized Uses § 21.64...

  16. Liquid Wall Chambers

    SciTech Connect

    Meier, W R

    2011-02-24

    The key feature of liquid wall chambers is the use of a renewable liquid layer to protect chamber structures from target emissions. Two primary options have been proposed and studied: wetted wall chambers and thick liquid wall (TLW) chambers. With wetted wall designs, a thin layer of liquid shields the structural first wall from short ranged target emissions (x-rays, ions and debris) but not neutrons. Various schemes have been proposed to establish and renew the liquid layer between shots including flow-guiding porous fabrics (e.g., Osiris, HIBALL), porous rigid structures (Prometheus) and thin film flows (KOYO). The thin liquid layer can be the tritium breeding material (e.g., flibe, PbLi, or Li) or another liquid metal such as Pb. TLWs use liquid jets injected by stationary or oscillating nozzles to form a neutronically thick layer (typically with an effective thickness of {approx}50 cm) of liquid between the target and first structural wall. In addition to absorbing short ranged emissions, the thick liquid layer degrades the neutron flux and energy reaching the first wall, typically by {approx}10 x x, so that steel walls can survive for the life of the plant ({approx}30-60 yrs). The thick liquid serves as the primary coolant and tritium breeding material (most recent designs use flibe, but the earliest concepts used Li). In essence, the TLW places the fusion blanket inside the first wall instead of behind the first wall.

  17. New semiempirical formula for exotic cluster decay

    SciTech Connect

    Balasubramaniam, M.; Kumarasamy, S.; Arunachalam, N.; Gupta, Raj K. [Department of Physics, Manonmaniam Sundaranar University, Tirunelveli-627012 (India); Department of Physics, Panjab University, Chandigarh-160014 (India)

    2004-07-01

    A new semiempirical formula, with only three parameters, is proposed for cluster decay half-lives. The parameters of the formula are obtained by making a least squares fit to the available experimental cluster-decay data. The calculated half-lives are compared with the results of the earlier proposed model-independent scaling law and the empirically fitted analytical super-asymmetric fission model (ASAFM), showing more closeness to the ASAFM results.

  18. Belief-Function Formulas for Audit Risk

    Microsoft Academic Search

    Rajendra P. Srivastava; Glenn R. Shafer

    2008-01-01

    This article relates belief functions to the structure of audit risk and provides formulas for audit risk under certain simplifying\\u000a assumptions. These formulas give plausibilities of error in the belief-function sense.\\u000a \\u000a We believe that belief-function plausibility represents auditors’ intuitive understanding of audit risk better than ordinary\\u000a probability. The plausibility of a statement, within belief-function theory, measures the extent to which

  19. A new formula for depigmenting human skin.

    PubMed

    Kligman, A M; Willis, I

    1975-01-01

    Complete depigmentation of the noraml skin of adult male blacks was procured by the daily application for five to seven weeks of a formula consisting of 0.1% tretinoin, 5.0% hydroquinone, 0.1% dexamethasone, and hydrophilic ointment. Depigmentation was not attainable when any one of the components was omitted. The formula was therapeutically effective in treatment of melasma, ephelides, and postinflammatory hyperpigmentation. Senile lentigines were resistant to this therapy. PMID:1119822

  20. Molecular Learning of wDNF Formulae

    Microsoft Academic Search

    Byoung-tak Zhang; Ha-young Jang

    2005-01-01

    We introduce a class of generalized DNF formulae called wDNF or weighted disjunctive normal form, and present a molecular al- gorithm that learns a wDNF formula from training examples. Realized in DNA molecules, the wDNF machines have a natural probabilistic se- mantics, allowing for their application beyond the pure Boolean logical structure of the standard DNF to real-life problems with

  1. WallSwitch 1.2.1

    NSDL National Science Digital Library

    2012-11-04

    Maybe you're growing tired of your desktop wallpaper. Never fear, as WallSwitch can prevent things from getting stale. Visitors can use their photo folders or other images as fodder for the WallSwitch program, which will cycle them through at various intervals. Also, there is a collage mode, which offers another way to display images. The program also has cross-fading transitions and the ability to apply color effects to the selected images. This version is compatible with computers running Windows 2000 and newer.

  2. Trigonometric Integrals for the magnetic field of the coil of rectangular cross section

    Microsoft Academic Search

    John T. Conway

    2006-01-01

    Formulas are derived giving the vector potential and the magnetic field components of a general coil of rectangular cross section and constant winding density. The solution is given in a cylindrical coordinate system in terms of trigonometric integrals. The formulas presented have been cross-checked and validated against alternative expressions giving the various field components as integrals of expressions containing Bessel

  3. The impact of magnetic properties on atom-wall interaction

    E-print Network

    G. Bimonte; G. L. Klimchitskaya; V. M. Mostepanenko

    2009-04-01

    The Lifshitz-type formulas for the free energy and Casimir-Polder force acting between an atom possessing a permanent magnetic moment and a wall made of different materials are derived. Simple model allowing analytic results is considered where the atomic magnetic susceptibility is frequency-independent and wall is made of ideal metal. Numerical computations of the Casimir-Polder force are performed for H atom interacting with walls made of ideal metal, nonmagnetic (Au) and ferromagnetic (Fe) metals and of ferromagnetic dielectric. It is shown that for the first three wall materials the inclusion of the magnetic moment of an atom decreases and for the fourth material increases the magnitude of the Casimir-Polder force.

  4. Residual interference assessment in adaptive wall wind tunnels

    NASA Technical Reports Server (NTRS)

    Murthy, A. V.

    1989-01-01

    A two-variable method is presented which is suitable for on-line calculation of residual interference in airfoil testing in the Langley 0.3-Meter Transonic Cryogenic Tunnel (0.3-M TCT). The method applies the Cauchy's integral formula to the closed contour formed by the contoured top and bottom walls, and the upstream and downstream ends. The measured top and bottom wall pressures and position are used to calculate the correction to the test Mach number and the airfoil angle of attack. Application to specific data obtained in the 0.3-M TCT adaptive wall test section demonstrates the need to assess residual interference to ensure that the desired level of wall streamlining is achieved. A FORTRAN computer program was developed for on-line calculation of the residual corrections during airfoil tests in the 0.3-M TCT.

  5. [Formula: see text] infection on a dynamic partnership network: characterization of [Formula: see text].

    PubMed

    Leung, Ka Yin; Kretzschmar, Mirjam; Diekmann, Odo

    2015-07-01

    We model the spread of an [Formula: see text] (Susceptible [Formula: see text] Infectious) sexually transmitted infection on a dynamic homosexual network. The network consists of individuals with a dynamically varying number of partners. There is demographic turnover due to individuals entering the population at a constant rate and leaving the population after an exponentially distributed time. Infection is transmitted in partnerships between susceptible and infected individuals. We assume that the state of an individual in this structured population is specified by its disease status and its numbers of susceptible and infected partners. Therefore the state of an individual changes through partnership dynamics and transmission of infection. We assume that an individual has precisely [Formula: see text] 'sites' at which a partner can be bound, all of which behave independently from one another as far as forming and dissolving partnerships are concerned. The population level dynamics of partnerships and disease transmission can be described by a set of [Formula: see text] differential equations. We characterize the basic reproduction ratio [Formula: see text] using the next-generation-matrix method. Using the interpretation of [Formula: see text] we show that we can reduce the number of states-at-infection [Formula: see text] to only considering three states-at-infection. This means that the stability analysis of the disease-free steady state of an [Formula: see text]-dimensional system is reduced to determining the dominant eigenvalue of a [Formula: see text] matrix. We then show that a further reduction to a [Formula: see text] matrix is possible where all matrix entries are in explicit form. This implies that an explicit expression for [Formula: see text] can be found for every value of [Formula: see text]. PMID:25008962

  6. New empirical formula for neutron dose level at the maze entrance of 15 MV medical accelerator facilities

    SciTech Connect

    Kim, Hong-Suk; Jang, Ki-Won; Park, Youn-Hwan; Kwon, Jeong-Wan; Choi, Ho-Sin; Lee, Jai-Ki; Kim, Jong-Kyung [Korea Institute of Nuclear Safety, 19 Guseong-dong, Yuseong-gu, Daejeon 305-338 (Korea, Republic of); Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791 (Korea, Republic of)

    2009-05-15

    An easily applicable empirical formula was derived for use in the assessment of the photoneutron dose at the maze entrance of a 15 MV medical accelerator treatment room. The neutron dose equivalent rates around the Varian medical accelerator head calculated with the Monte Carlo code MCNPX were used as the source term in producing the base data. The dose equivalents were validated by measurements with bubble detectors. Irradiation geometry conditions expected to yield higher neutron dose rates in the maze were selected: a 20x20 cm{sup 2} irradiation field, gantry rotation plane parallel to the maze walls, and the photon beams directed to the opposite wall to the maze entrance. The neutron dose equivalents at the maze entrance were computed for 697 arbitrary single-bend maze configurations by extending the Monte Carlo calculations down to the maze entrance. Then, the empirical formula was derived by a multiple regression fit to the neutron dose equivalents at the maze entrance for all the different maze configurations. The goodness of the empirical formula was evaluated by applying it to seven operating medical accelerators of different makes. When the source terms were fixed, the neutron doses estimated from the authors' formula agreed better with the corresponding MCNPX simulations than the results of the Kersey method. In addition, compared with the Wu-McGinley formula, the authors' formula provided better estimates for the mazes with length longer than 8.5 m. There are, however, discrepancies between the measured dose rates and the estimated values from the authors' formula, particularly for the machines other than a Varian model. Further efforts are needed to characterize the neutron field at the maze entrance to reduce the discrepancies. Furthermore, neutron source terms for the machines other than a Varian model should be simulated or measured and incorporated into the formula for accurate extended application to a variety of models.

  7. New empirical formula for neutron dose level at the maze entrance of 15 MV medical accelerator facilities.

    PubMed

    Kim, Hong-Suk; Jang, Ki-Won; Park, Youn-Hwan; Kwon, Jeong-Wan; Choi, Ho-Sin; Lee, Jai-Ki; Kim, Jong-Kyung

    2009-05-01

    An easily applicable empirical formula was derived for use in the assessment of the photoneutron dose at the maze entrance of a 15 MV medical accelerator treatment room. The neutron dose equivalent rates around the Varian medical accelerator head calculated with the Monte Carlo code MCNPX were used as the source term in producing the base data. The dose equivalents were validated by measurements with bubble detectors. Irradiation geometry conditions expected to yield higher neutron dose rates in the maze were selected: a 20 x 20 cm2 irradiation field, gantry rotation plane parallel to the maze walls, and the photon beams directed to the opposite wall to the maze entrance. The neutron dose equivalents at the maze entrance were computed for 697 arbitrary single-bend maze configurations by extending the Monte Carlo calculations down to the maze entrance. Then, the empirical formula was derived by a multiple regression fit to the neutron dose equivalents at the maze entrance for all the different maze configurations. The goodness of the empirical formula was evaluated by applying it to seven operating medical accelerators of different makes. When the source terms were fixed, the neutron doses estimated from the authors' formula agreed better with the corresponding MCNPX simulations than the results of the Kersey method. In addition, compared with the Wu-McGinley formula, the authors' formula provided better estimates for the mazes with length longer than 8.5 m. There are, however, discrepancies between the measured dose rates and the estimated values from the authors' formula, particularly for the machines other than a Varian model. Further efforts are needed to characterize the neutron field at the maze entrance to reduce the discrepancies. Furthermore, neutron source terms for the machines other than a Varian model should be simulated or measured and incorporated into the formula for accurate extended application to a variety of models. PMID:19544767

  8. Cell wall integrity

    PubMed Central

    Pogorelko, Gennady; Lionetti, Vincenzo; Bellincampi, Daniela; Zabotina, Olga

    2013-01-01

    The plant cell wall, a dynamic network of polysaccharides and glycoproteins of significant compositional and structural complexity, functions in plant growth, development and stress responses. In recent years, the existence of plant cell wall integrity (CWI) maintenance mechanisms has been demonstrated, but little is known about the signaling pathways involved, or their components. Examination of key mutants has shed light on the relationships between cell wall remodeling and plant cell responses, indicating a central role for the regulatory network that monitors and controls cell wall performance and integrity. In this review, we present a short overview of cell wall composition and discuss post-synthetic cell wall modification as a valuable approach for studying CWI perception and signaling pathways. PMID:23857352

  9. Ferroelectric domain wall injection.

    PubMed

    Whyte, Jonathan R; McQuaid, Raymond G P; Sharma, Pankaj; Canalias, Carlota; Scott, James F; Gruverman, Alexei; Gregg, J Marty

    2014-01-15

    Ferroelectric domain wall injection has been demonstrated by engineering of the local electric field, using focused ion beam milled defects in thin single crystal lamellae of KTiOPO4 (KTP). The electric field distribution (top) displays localized field hot-spots, which correlate with nucleation events (bottom). Designed local field variations can also dictate subsequent domain wall mobility, demonstrating a new paradigm in ferroelectric domain wall control. PMID:24136810

  10. Covering Walls With Fabrics. 

    E-print Network

    Anonymous,

    1979-01-01

    fabrics to walls: Permanent Methods ? Adhesive paste or glue Temporary Methods ? Shirring ? Double-stick tape ? Fabric closure tape ? Staple, tack or nail ? Starch Permanent Application Fabrics are permanently installed by gluing them... the wall. Use a level to be sure the trim is straight. Angle the remaining fab ric and attach to the ceiling. Additional trim may be used at the end of the hem (see Figure 8). Figure 8 Padded Wall To pad a wall, staple up to 3 layers of batting used...

  11. Neutron-Activation Cross Sections

    Microsoft Academic Search

    J. A. Miskel; K. V. Marsh; M. Lindner; R. J. Nagle

    1962-01-01

    Neutron-activation cross sections have been measured for five target nuclei, Hf180, Ta181, W186, Au197, and Th232, over a neutron energy range from 0.030 to 4.0 MeV. The experimental results are compared with values calculated from the statistical theory of nuclear reactions. Values of the constant Cn in the approximate level density formula pn=Cnexp[2(aE)12] are obtained for these isotopes from a

  12. A Mass Formula from Light to Hypernuclei

    E-print Network

    C. Samanta; P. Roy Chowdhury; D. N. Basu

    2006-02-22

    Simultaneous description of ordinary and hypernuclei masses by a single mass formula has been a great challenge in nuclear physics. Hyperon-separation energies of about forty Lambda($\\Lambda$), three Lambda-Lambda($\\Lambda\\Lambda$), one Sigma($\\Sigma$) and seven Cascade($\\Xi$) hypernuclei have been experimentally found. Many of these nuclei are of light masses. We prescribe a new mass formula, called BWMH, which describes the normal and hypernuclei on the same footing. It is based on the modified-Bethe-Weizs\\"acker mass formula (BWM). BWM is basically an extension of the Bethe-Weizs\\"acker mass formula (BW) for light nuclei. The parameters of BWM were optimized by fitting about 3000 normal nuclei available recently. The original Bethe-Weizs\\"acker mass formula (BW) was designed for medium and heavy mass nuclei and it fails for light nuclei. Two earlier works on hypernuclei based on this BW show some limitations. The BWMH gives improved agreement with the experimental data for the line of stability, one-neutron separation energy versus neutron number spectra of normal nuclei, and the hyperon-separation energies from hypernuclei. The drip lines are modified for addition of a $\\Lambda$ hyperon in a normal nucleus.

  13. Domain wall filters

    E-print Network

    Oliver Baer; Rajamani Narayanan; Herbert Neuberger; Oliver Witzel

    2007-03-14

    We propose using the extra dimension separating the domain walls carrying lattice quarks of opposite handedness to gradually filter out the ultraviolet fluctuations of the gauge fields that are felt by the fermionic excitations living in the bulk. This generalization of the homogeneous domain wall construction has some theoretical features that seem nontrivial.

  14. ENGINEERING BULLETIN: SLURRY WALLS

    EPA Science Inventory

    Slurry walls are used at Superfund sites to contain the waste or contamination and to reduce the potential of future migration of waste constituents. n many cases slurry walls are used in conjunction with other waste treatment technologies, such as covers and ground water pump-an...

  15. Dynamic Dilatonic Domain Walls

    E-print Network

    H. A. Chamblin; H. S. Reall

    1999-05-02

    Motivated by the ``universe as a brane'' idea, we investigate the motion of a $(D-2)$-brane (or domain wall) that couples to bulk matter. Usually one would expect the spacetime outside such a wall to be time dependent however we show that in certain cases it can be static, with consistency of the Israel equations yielding relationships between the bulk metric and matter that can be used as ans\\"atze to solve the Einstein equations. As a concrete model we study a domain wall coupled to a bulk dilaton with Liouville potentials for the dilaton both in the bulk and on the wall. The bulk solutions we find are all singular but some have black hole or cosmological horizons, beyond which our solutions describe domain walls moving in time dependent bulks. A significant period of world volume inflation occurs if the potential on the wall is not too steep; in some cases the bulk also inflates (with the wall comoving) while in others the wall moves relative to a non-inflating bulk. We apply our method to obtain cosmological solutions of Ho\\v{r}ava-Witten theory compactified on a Calabi-Yau space. tive to a non-inflating bulk. We apply our method to obtain cosmological solutions of Ho\\v{r}ava-Witten theory compactified on a Calabi-Yau space.

  16. Domain wall conduction in multiaxial ferroelectrics

    SciTech Connect

    Eliseev, E. A. [National Academy of Science of Ukraine, Kiev, Ukraine; Morozovska, A. N. [National Academy of Science of Ukraine, Kiev, Ukraine; Svechnikov, S. V. [National Academy of Science of Ukraine, Kiev, Ukraine; Maksymovych, Petro [ORNL; Kalinin, Sergei V [ORNL

    2012-01-01

    The conductance of domain wall structures consisting of either stripes or cylindrical domains in multiaxial ferroelectric-semiconductors is analyzed. The effects of the flexoelectric coupling, domain size, wall tilt, and curvature on charge accumulation are analyzed using the Landau-Ginsburg Devonshire theory for polarization vector combined with the Poisson equation for charge distributions. The proximity and size effect of the electron and donor accumulation/depletion by thin stripe domains and cylindrical nanodomains are revealed. In contrast to thick domain stripes and wider cylindrical domains, in which the carrier accumulation (and so the static conductivity) sharply increases at the domain walls only, small nanodomains of radii less than 5-10 correlation lengths appeared conducting across the entire cross-section. Implications of such conductive nanosized channels may be promising for nanoelectronics.

  17. Systematic determination of absolute absorption cross-section of individual carbon nanotubes.

    PubMed

    Liu, Kaihui; Hong, Xiaoping; Choi, Sangkook; Jin, Chenhao; Capaz, Rodrigo B; Kim, Jihoon; Wang, Wenlong; Bai, Xuedong; Louie, Steven G; Wang, Enge; Wang, Feng

    2014-05-27

    Optical absorption is the most fundamental optical property characterizing light-matter interactions in materials and can be most readily compared with theoretical predictions. However, determination of optical absorption cross-section of individual nanostructures is experimentally challenging due to the small extinction signal using conventional transmission measurements. Recently, dramatic increase of optical contrast from individual carbon nanotubes has been successfully achieved with a polarization-based homodyne microscope, where the scattered light wave from the nanostructure interferes with the optimized reference signal (the reflected/transmitted light). Here we demonstrate high-sensitivity absorption spectroscopy for individual single-walled carbon nanotubes by combining the polarization-based homodyne technique with broadband supercontinuum excitation in transmission configuration. To our knowledge, this is the first time that high-throughput and quantitative determination of nanotube absorption cross-section over broad spectral range at the single-tube level was performed for more than 50 individual chirality-defined single-walled nanotubes. Our data reveal chirality-dependent behaviors of exciton resonances in carbon nanotubes, where the exciton oscillator strength exhibits a universal scaling law with the nanotube diameter and the transition order. The exciton linewidth (characterizing the exciton lifetime) varies strongly in different nanotubes, and on average it increases linearly with the transition energy. In addition, we establish an empirical formula by extrapolating our data to predict the absorption cross-section spectrum for any given nanotube. The quantitative information of absorption cross-section in a broad spectral range and all nanotube species not only provides new insight into the unique photophysics in one-dimensional carbon nanotubes, but also enables absolute determination of optical quantum efficiencies in important photoluminescence and photovoltaic processes. PMID:24821815

  18. The Stone Wall Initiative

    NSDL National Science Digital Library

    The Stone Wall Initiative (SWI) promotes the appreciation, investigation, and conservation of stone walls in New England. SWI emphasizes the cultural, natural, and aesthetic resources provided by historic walls, which are the closest thing New England has to classical ruins. Materials available at the site include news articles; links to books and other publications; and links to information on public presentations, school presentations, and field trips. For teachers, there are collaborative, field-tested curricula for students in primary and secondary grades, a reference book that provides background information, and information on a teacher's kit that contains specimens of stone found in walls, an identification card for the specimens, and materials for studying them. There is also information on threats to New England's stone walls and how to preserve them.

  19. Stone Wall Initiative

    NSDL National Science Digital Library

    The Stone Wall Initiative (SWI) promotes the appreciation, investigation, and conservation of stone walls in New England. SWI emphasizes the cultural, natural and aesthetic resources provided by historic walls, which are the closest thing New England has to classical ruins. Materials available at the site include news articles, links to books and other publications, and links to information on public presentations, school presentations, and field trips. For teachers, there are collaborative, field-tested curricula for students in primary and secondary grades, a reference book that provides background information, and information on a teacher's kit that contains specimens of stone found in walls, an identification card for the specimens, and materials for studying them. There is also information on threats to New England's stone walls and how to preserve them.

  20. 22. SIDE WALL CONSTRUCTION, NORTH TRAINING WALL, LOOKING WEST FROM ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    22. SIDE WALL CONSTRUCTION, NORTH TRAINING WALL, LOOKING WEST FROM THE SAME POINT AS VIEW NO. 21. - Oakland Harbor Training Walls, Mouth of Federal Channel to Inner Harbor, Oakland, Alameda County, CA

  1. Bayes Formula Bayesian Estimation Coin Tosses Overview of Estimation

    E-print Network

    Watkins, Joseph C.

    Bayes Formula Bayesian Estimation Coin Tosses Topic 12 Overview of Estimation Bayesian Statistics 1 / 12 #12;Bayes Formula Bayesian Estimation Coin Tosses Outline Bayes Formula Bayesian Estimation Coin Tosses 2 / 12 #12;Bayes Formula Bayesian Estimation Coin Tosses Introduction The Bayesian approach

  2. 27 CFR 20.115 - Ink general-use formula.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...Firearms 1 2012-04-01 2012-04-01 false Ink general-use formula. 20.115 Section 20...of Process General-Use Formulas § 20.115 Ink general-use formula. Ink general-use formula is any finished article...

  3. 27 CFR 20.115 - Ink general-use formula.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...Firearms 1 2014-04-01 2014-04-01 false Ink general-use formula. 20.115 Section 20...of Process General-Use Formulas § 20.115 Ink general-use formula. Ink general-use formula is any finished article...

  4. 27 CFR 20.115 - Ink general-use formula.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...Firearms 1 2013-04-01 2013-04-01 false Ink general-use formula. 20.115 Section 20...of Process General-Use Formulas § 20.115 Ink general-use formula. Ink general-use formula is any finished article...

  5. Which formulae shrink under random restrictions? Hana Chockler y

    E-print Network

    Zwick, Uri

    Which formulae shrink under random restrictions? #3; Hana Chockler y Uri Zwick z Abstract We show that the shrinkage exponent of B-formulae, i.e., formulae over the basis B, is = B , if and only if B-formulae shrink subject. Subbotovskaya [Sub61] was the #12;rst to observe that every de Morgan for- mula shrinks

  6. Mass formula for quasi-black holes

    SciTech Connect

    Lemos, Jose P. S.; Zaslavskii, Oleg B. [Centro Multidisciplinar de Astrofisica-CENTRA, Departamento de Fisica, Instituto Superior Tecnico - IST, Universidade Tecnica de Lisboa - UTL, Av. Rovisco Pais 1, 1049-001 Lisboa (Portugal); Astronomical Institute of Kharkov V.N. Karazin National University, 35 Sumskaya Street, Kharkov, 61022 (Ukraine)

    2008-12-15

    A quasi-black hole, either nonextremal or extremal, can be broadly defined as the limiting configuration of a body when its boundary approaches the body's quasihorizon. We consider the mass contributions and the mass formula for a static quasi-black hole. The analysis involves careful scrutiny of the surface stresses when the limiting configuration is reached. It is shown that there exists a strict correspondence between the mass formulas for quasi-black holes and pure black holes. This perfect parallelism exists in spite of the difference in derivation and meaning of the formulas in both cases. For extremal quasi-black holes the finite surface stresses give zero contribution to the total mass. This leads to a very special version of Abraham-Lorentz electron in general relativity in which the total mass has pure electromagnetic origin in spite of the presence of bare stresses.

  7. Semi-empirical systematics of (n, He-3) cross sections for 14.6 MeV neutrons.

    PubMed

    Yettou, L; Belgaid, M

    2014-12-01

    A new semi-empirical formula for the calculation of the (n, He-3) cross section at 14.6MeV neutron energy is obtained. It is based on the evaporation model. The new formula with three parameters is found to give a better fit to the data than the previous comparable formulae. PMID:25103248

  8. Gapped domain walls, gapped boundaries, and topological degeneracy.

    PubMed

    Lan, Tian; Wang, Juven C; Wen, Xiao-Gang

    2015-02-20

    Gapped domain walls, as topological line defects between (2+1)D topologically ordered states, are examined. We provide simple criteria to determine the existence of gapped domain walls, which apply to both Abelian and non-Abelian topological orders. Our criteria also determine which (2+1)D topological orders must have gapless edge modes, namely, which (1+1)D global gravitational anomalies ensure gaplessness. Furthermore, we introduce a new mathematical object, the tunneling matrix W, whose entries are the fusion-space dimensions W(ia), to label different types of gapped domain walls. By studying many examples, we find evidence that the tunneling matrices are powerful quantities to classify different types of gapped domain walls. Since a gapped boundary is a gapped domain wall between a bulk topological order and the vacuum, regarded as the trivial topological order, our theory of gapped domain walls inclusively contains the theory of gapped boundaries. In addition, we derive a topological ground state degeneracy formula, applied to arbitrary orientable spatial 2-manifolds with gapped domain walls, including closed 2-manifolds and open 2-manifolds with gapped boundaries. PMID:25763965

  9. Parabolic connection formulae in quantum mechanics

    SciTech Connect

    Chebotarev, L.V. [Case Postale 655, Montreal, Quebec, H2A 3N2 (CANADA)] [Case Postale 655, Montreal, Quebec, H2A 3N2 (CANADA)

    1997-04-01

    The mathematical structure of the tunnelling state of a quantum particle is established with respect to a large variety of smooth potential barriers, without any restriction upon the particle{close_quote}s coordinate or the barrier penetration integral (the latter is allowed to be arbitrarily small). Complete sufficient conditions for the semiclassical parabolic connection formulae are derived, both with respect to the particle{close_quote}s energy and relative to its coordinates. Explicit error bounds to these formulae are obtained. Extension to the overbarrier range is discussed. {copyright} 1997 Academic Press, Inc.

  10. Semiclassical Trace Formulas for Noninteracting Identical Particles

    E-print Network

    Jamal Sakhr; Niall D. Whelan

    2002-08-07

    We extend the Gutzwiller trace formula to systems of noninteracting identical particles. The standard relation for isolated orbits does not apply since the energy of each particle is separately conserved causing the periodic orbits to occur in continuous families. The identical nature of the particles also introduces discrete permutational symmetries. We exploit the formalism of Creagh and Littlejohn [Phys. Rev. A 44, 836 (1991)], who have studied semiclassical dynamics in the presence of continuous symmetries, to derive many-body trace formulas for the full and symmetry-reduced densities of states. Numerical studies of the three-particle cardioid billiard are used to explicitly illustrate and test the results of the theory.

  11. Lead content of milk and infant formula

    SciTech Connect

    Walker, B.

    1980-03-01

    Survey report:A survey to determine the lead content of early infant food sources was conducted in Washington, D.C. Samples were collected from various lots of national brands of infant formula and evaporated milk, cartons of nonfat dry milk, containers of homogenized cow's milk, and human milk. Mean concentrations of lead in infant formula, evaporated milk, nonfat dry milk, fresh cow's milk, and human milk were 0.135 g/ml, 0.03 g/ml, 0.01 g/ml, 0.53 g/ml, and 0.02 g/ml respectively. (2 references, 2 tables)

  12. Monte Carlo study of electron-beam penetration and backscattering in multi-walled carbon nanotube materials: The effect of different scattering models

    SciTech Connect

    Kyriakou, Ioanna; Emfietzoglou, Dimitris [Medical Physics Lab, University of Ioannina Medical School, 451 10 Ioannina (Greece); Nojeh, Alireza [Department of Electrical and Computer Engineering, The University of British Columbia, Vancouver, British Columbia V6T 1Z4 (Canada); Moscovitch, Marko [Department of Radiation Medicine, Georgetown University Medical Center, Washington DC, NW 20057 (United States)

    2013-02-28

    A systematic study of electron-beam penetration and backscattering in multi-walled carbon nanotube (MWCNT) materials for beam energies of {approx}0.3 to 30 keV is presented based on event-by-event Monte Carlo simulation of electron trajectories using state-of-the-art scattering cross sections. The importance of different analytic approximations for computing the elastic and inelastic electron-scattering cross sections for MWCNTs is emphasized. We offer a simple parameterization for the total and differential elastic-scattering Mott cross section, using appropriate modifications to the Browning formula and the Thomas-Fermi screening parameter. A discrete-energy-loss approach to inelastic scattering based on dielectric theory is adopted using different descriptions of the differential cross section. The sensitivity of electron penetration and backscattering parameters to the underlying scattering models is examined. Our simulations confirm the recent experimental backscattering data on MWCNT forests and, in particular, the steep increase of the backscattering yield at sub-keV energies as well as the sidewalls escape effect at high-beam energies.

  13. Annular-Cross-Section CFE Chamber

    NASA Technical Reports Server (NTRS)

    Sharnez, Rizwan; Sammons, David W.

    1994-01-01

    Proposed continuous-flow-electrophoresis (CFE) chamber of annular cross section offers advantages over conventional CFE chamber, and wedge-cross-section chamber described in "Increasing Sensitivity in Continuous-Flow Electrophoresis" (MFS-26176). In comparison with wedge-shaped chamber, chamber of annular cross section virtually eliminates such wall effects as electro-osmosis and transverse gradients of velocity. Sensitivity enhanced by incorporating gradient maker and radial (collateral) flow.

  14. Experiments on confined turbulent jets in cross flow.

    NASA Technical Reports Server (NTRS)

    Kamotani, Y.; Greber, I.

    1973-01-01

    Results are reported of experiments on the effects of an opposite wall on the characteristics of turbulent jets injected into a cross flow, for unheated and heated jets. Longitudinal and transverse distributions of velocity and temperature are presented for single and multiple circular jets, and trajectories are presented for two-domensional jets. The opposite wall has relatively little effect on a single jet unless the ratio of jet to cross flow momentum flux is large enough for the jet to impinge on the opposite wall. For a row of jets aligned perpendicularly to the cross flow, the opposite wall exerts progressively larger influence as the spacing between jets decreases. Much of the effect of jet and wall proximity can be understood by considering the interaction of the vortex flow which is the major feature of the structure of a single jet in a cross flow. Smoke photographs are shown to elucidate some of the interaction patterns.

  15. MIR wall surveyor

    SciTech Connect

    Lehman, S K

    1998-08-01

    This report addresses the problem of determining the layer thickness of a wall probed with a monostatic, hand-held implementation of Lawrence Livermore National Laboratory's Micropower Impulse Radar (MIR). Our goal is to locate the layers of the wall, and measure its overall thickness. The physical constraints require the device to be held fixed or swept rapidly over the wall. Thus an insufficient amount of backscattered data are collected to use diffraction tomographic [3] techniques to form images. The problem is therefore one of determining the wall layers from a set of time series reflection data. We develop two channel signal processing algorithms to determine the location of the layers of a wall, using as inputs the time series returned from the wall and the incident pulse. We study the problem using a finite difference time domain (FDTD) computer code to simulate the electromagnetic propagation within and scattering from a wall probed with five pulses. We use the results to develop and test signal processing procedures for locating the individual layers. We study two classes of algorithms: a deconvolution approach to determine a layered impulse response, and a correlation approach. After testing the algorithms on the FDTD results, we down-select to a suitable method.

  16. Investigating the validity of the Bosanquet formula for estimation of diffusivities in mesopores

    SciTech Connect

    Krishna, Rajamani [Univ. of Amsterdam (Netherlands). Van‘t Hoff Inst. for Molecular Sciences (HIMS); van Baten, Jasper M. [Univ. of Amsterdam (Netherlands). Van‘t Hoff Inst. for Molecular Sciences (HIMS)

    2012-02-01

    Molecular Dynamics (MD) simulations were performed to determine the self-diffusivity, Di,self, of H?, CO?, Ar, Kr, CH?, C?H?, C?H?, and nC?H?? for a variety of pore concentrations within one-dimensional mesopores of 2 nm, 3 nm, 3.4 nm, 4 nm, 5.8 nm, 7.6 nm and 10 nm sizes. The MD simulated values of Di,self are compared with estimations of the commonly used Bosanquet formula 1/Di,self=1/Di,Kn+1/Ðii,fl, that combines molecule–wall and molecule–molecule interactions:, where Di,Kn is the Knudsen diffusivity, and Ðii,fl is the self-diffusivity of species i in the fluid phase at the same molar concentration, ci, as within the mesopores. For components with poor adsorption strength, such as H?, the MD simulated Di,self values are in good agreement with the estimations using the Bosanquet formula for the whole range of pore concentrations. For components with strong adsorption at the pore walls, the MD simulated values are significantly lower than the Bosanquet estimations when molecule–wall interactions are dominant. These deviations are traceable to the failure of the Knudsen prescription of diffuse reflectance on molecule–wall collisions, because adsorption at the pore walls introduces a bias in the molecular hops. For any given molecule, the Bosanquet estimations tend to be increasingly accurate when the pore diameters are increased.

  17. Supersymmetric Domain Walls

    E-print Network

    Eric A. Bergshoeff; Axel Kleinschmidt; Fabio Riccioni

    2012-06-25

    We classify the half-supersymmetric "domain walls", i.e. branes of codimension one, in toroidally compactified IIA/IIB string theory and show to which gauged supergravity theory each of these domain walls belong. We use as input the requirement of supersymmetric Wess-Zumino terms, the properties of the E11 Kac-Moody algebra and the embedding tensor formalism. We show that the number of half-supersymmetric domain walls is a multiple of the number of corresponding central charges in the supersymmetry algebra, where the multiplicity is related to the degeneracy of the BPS conditions.

  18. Stone Wall Classification

    NSDL National Science Digital Library

    This outline provides a taxonomic classification of all types of stone walls, standing stones, pavements, monuments and other structures made of human-arranged stones. The hierarchy consists of domain (the broadest), class, family, type, subtype, and variant (the narrowest). Users can refer to the book 'Exploring Stone Walls' for the criteria used to distinguish one taxon of stone walls from another and for their descriptions. The ranks are sized and color-coded for convenience, and names that are commonly used are highlighted in boldface.

  19. The Economic Vitality Formula of Success

    ERIC Educational Resources Information Center

    Konopnicki, Patrick M.

    2012-01-01

    An economic vitality formula of success can be accomplished by creating partnerships between local career and technical education (CTE), and workforce development and economic development entities. Student industry certifications; dynamic partnerships; programs and projects focused on science, technology, engineering, and mathematics (STEM); and…

  20. Money Ivestigation 2 (solving linear equations, formulas)

    NSDL National Science Digital Library

    2011-01-01

    The second part of the Money Investigation activities. A hands-on activity to help students understand four basic binary operations in algebraic expressions, solving linear equations in 1 variable, and solving a formula for an indicated variable, using value of collections of coins.

  1. Stoichiometry : FormulaFromComp (8 Variations)

    NSDL National Science Digital Library

    Lactic acid is the substance that makes your muscles burn when you've been exercising hard. Lactic acid is composed of 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen by weight. If it has a molar mass of 90 g/mol, what is its molecular formula?

  2. Representation formulae for the fractional Brownian motion

    E-print Network

    Paris-Sud XI, Université de

    Representation formulae for the fractional Brownian motion Jean Picard Abstract We discuss the relationships between some classical representations of the fractional Brownian motion, as a stochastic integral. As an application, we also prove some properties of the Cameron-Martin space of the fractional Brownian motion

  3. DEFORMATIONS OF THE TAYLOR FORMULA EMMANUEL FERRAND

    E-print Network

    Ferrand, Emmanuel

    . Given a polynomial P of degree n with complex coefficients, the Taylor expansion at some point X gives P coefficients are, respectively, Pi,j = i j and Di,j = i if i = j + 1 and 0 otherwise, (i, j) N2. Then P = expDEFORMATIONS OF THE TAYLOR FORMULA EMMANUEL FERRAND Abstract. Given a sequence x = {xn, n N

  4. Analytical formulae for magnetic fields in undulators

    Microsoft Academic Search

    V. A. Papadichev

    1991-01-01

    Analytical formulae are presented for the calculation of the magnetic field in various types of undulators, including plane (with and without ferromagnetic poles), helical and azimuthally symmetrical ones. The use of analytical rather than numerical methods allows one to calculate more rapidly undulator fields and to optimize them with respect to various parameters. Conformal mapping in the case of iron-pole

  5. A PARABOLIC ALMOST MONOTONICITY FORMULA Introduction In ...

    E-print Network

    2006-07-07

    University and the Royal Institute of Technology, respectively, and they thank the universities ... Finally, let us make a remark on the proof of the parabolic almost monotonic- ... almost monotonicity formula (Theorem III) with more features of the monotonicity ...... Also, the boundedness of both u and (???s)u alone implies.

  6. Beyond the Formula: Students Becoming Writers.

    ERIC Educational Resources Information Center

    Dobler, Judith

    To become writers, students must see themselves as writers and be treated as writers by their teachers. Students need to find the motivation to go beyond formulas, to grapple with messy, often inchoate ideas, to find their own particular angle of vision. What rhetoricians call "invention" or "discovery" is difficult to pin down. Without a system…

  7. HEIGHT FORMULAS FOR HOMOGENEOUS VARIETIES HARRY TAMVAKIS

    E-print Network

    Tamvakis, Harry

    HEIGHT FORMULAS FOR HOMOGENEOUS VARIETIES HARRY TAMVAKIS Dedicated to my teacher, William Fulton] for the Faltings height of certain homogeneous varieties in terms of combinatorial data, and verify de- fines an arithmetic variety X in projective space Pn Z. The Faltings height h(X) of X

  8. HEIGHT FORMULAS FOR HOMOGENEOUS VARIETIES HARRY TAMVAKIS

    E-print Network

    Tamvakis, Harry

    HEIGHT FORMULAS FOR HOMOGENEOUS VARIETIES HARRY TAMVAKIS Dedicated to my teacher, William Fulton] for the Faltings height of certain homogeneous varieties in terms of combinatorial data, and verify de­ fines an arithmetic variety X in projective space P n Z . The Faltings height h(X) of X

  9. The entropy formula for linear heat equation

    Microsoft Academic Search

    Lei Ni

    2003-01-01

    We derive the entropy formula for the linear heat equaiton on complete Riemannian manifolds with nonnegative Ricci curvature. As applications, we study the relation between the value of entropy and the volume of balls of various scales. The results are simpler version, without Ricci flow, of Perelman's recent results on volume non-collapsing.

  10. Adolescent Formula Literature and Its Promiscuous Progeny.

    ERIC Educational Resources Information Center

    Stanek, Lou Willett

    This paper discusses the history and effect of popular culture generally and of the adolescent formula novel specifically. Seven primary characteristics of art as popular culture are that the work is accessible, easy to understand, conventional in form, not shocking in content, expressive of common and appropriate values, relative to some element…

  11. Formula management: in search of magic solutions.

    PubMed

    McConnell, C R

    1997-12-01

    Formula management is the unjustified reliance on a set of rules or prescribed behaviors--a management formula, fad, or "flavor-of-the-month"--as the answer to an organization's needs. It is the manifestation of a tendency to believe that the essence of management can be proceduralized, that the art of management can be replaced with an expanding science of management. This tendency has been repeatedly demonstrated in the application of concepts such as management by objectives (MBO) and the variants of total quality management (TQM). All of management's "formulas" have their place; however, none of them provide all of management's needed answers. To view any of the specifically delineated "kinds of management"--all of which are highly susceptible to misapplication and resistance to change both blatant and subtle--as a cure-all is fully as inappropriate as denying their value out of hand. Formula or not, organizational results will continue to depend on the practice of the art, as well as the science, of management. PMID:10174446

  12. New formulas for tropospheric scatter path loss

    Microsoft Academic Search

    Steen A. Parl

    1979-01-01

    The predicted performance of tropospheric scatter transmission is investigated in terms of spectrum slope, refractive index variance, and scale of turbulence. The common volume integral is evaluated to yield a useful expression for path loss in terms of these parameters. Formulas for the coupling loss in the asymptotic case of very wide and very narrow antenna beams are derived. Approximate

  13. A volume formula for generalized hyperbolic tetrahedra

    Microsoft Academic Search

    Akira Ushijima

    2003-01-01

    A generalized hyperbolic tetrahedra is a polyhedron (possibly non-compact) with finite volume in hyperbolic space, obtained from a tetrahedron by the polar truncation at the vertices lying outside the space. In this paper it is proved that a volume formula for ordinary hyperbolic tetrahedra devised by J. Murakami and M. Yano can be applied to such ones. There are two

  14. Hebes Chasma Wall

    NASA Technical Reports Server (NTRS)

    2005-01-01

    [figure removed for brevity, see original site]

    The THEMIS VIS camera is capable of capturing color images of the Martian surface using five different color filters. In this mode of operation, the spatial resolution and coverage of the image must be reduced to accommodate the additional data volume produced from using multiple filters. To make a color image, three of the five filter images (each in grayscale) are selected. Each is contrast enhanced and then converted to a red, green, or blue intensity image. These three images are then combined to produce a full color, single image. Because the THEMIS color filters don't span the full range of colors seen by the human eye, a color THEMIS image does not represent true color. Also, because each single-filter image is contrast enhanced before inclusion in the three-color image, the apparent color variation of the scene is exaggerated. Nevertheless, the color variation that does appear is representative of some change in color, however subtle, in the actual scene. Note that the long edges of THEMIS color images typically contain color artifacts that do not represent surface variation.

    This false color image of a canyon wall located in Hebes Chasma, was collected during the Southern Fall season. Hebes Chasma is located north of Valles Marineris.

    Image information: VIS instrument. Latitude -1.5, Longitude 284.5 East (75.5 West). 35 meter/pixel resolution.

    Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.

    NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.

  15. Anterior chest wall inflammation by whole-body magnetic resonance imaging in patients with spondyloarthritis: lack of association between clinical and imaging findings in a cross-sectional study

    PubMed Central

    2012-01-01

    Introduction Inflammatory involvement of the anterior chest wall (ACW) affects the quality of life of patients with spondyloarthritis (SpA), although involvement of the ACW is often neglected on clinical and imaging evaluation. Whole-body (WB) MRI is an imaging method used to assess the ACW in addition to the sacroiliac joints and spine without inconvenience for patients. Our goals in this study were to describe the distribution of ACW inflammation by WB MRI in both early and established SpA and associations between clinical and imaging findings indicative of inflammation. Methods The ACWs of 122 consecutive SpA patients (95 with ankylosing spondylitis (AS) and 27 with nonradiographic SpA (nrSpA)) and 75 healthy controls were scanned by sagittal and coronal WB MRI. The MRI scans were scored independently in random order by seven readers blinded to patient identifiers. Active and structural inflammatory lesions of the ACW were recorded on a web-based data entry form. ACW pain by patient self-report, ACW tenderness on physical examination according to the Maastricht Ankylosing Spondylitis Enthesitis Score (MASES) and lesions detected by MRI were analyzed descriptively. ? statistics served to assess the agreement between clinical and imaging findings. Results ACW pain or tenderness was present in 26% of patients, with little difference between AS and nrSpA patients. Bone marrow edema (BME), erosion and fat infiltration were recorded in 44.3%, 34.4% and 27.0% of SpA patients and in 9.3%, 12.0% and 5.3% of controls, respectively. Lesions found by MRI occurred more frequently in AS patients (BME, erosion and fat infiltration in 49.5%, 36.8% and 33.7%, respectively) than in nrSpA patients (25.9%, 25.9% and 3.7%, respectively). The joint most frequently affected by lesions found on MRI scans was the manubriosternal joint. The ? values between clinical assessments and MRI inflammation ranged from -0.10 to only 0.33 for both AS and nrSpA patients. Conclusions Among SpA patients, 26% had clinical involvement of the ACW. WB MRI signs of ACW inflammation were found in a substantial proportion of patients with AS (49.5%) and nrSpA (25.9%). There was no association between clinical assessments of ACW, including the MASES, and MRI features. PMID:22226453

  16. Designing a Wall

    NSDL National Science Digital Library

    PBS Kids

    2006-01-01

    In this engineering activity (page 5 of PDF), young learners investigate how materials and design contribute to the strength of a structure, particularly walls. Learners use different materials to construct "walls" and then test the strength of each by setting up a ramp near the wall and releasing a car from the top of the ramp. Learners also watch a video clip and develop a fair test to compare the strength of the different walls they have constructed. This activity is part of the Curious George "Under Construction" lesson plan and related to the show Curious George on PBS, specifically the episode "Keep Out Cows." The lesson plan includes several activities that explore building engineering. Activities are connected to fiction and non-fiction books and include family extension projects.

  17. Effects of neurological damage on production of formulaic language

    PubMed Central

    Sidtis, D.; Canterucci, G.; Katsnelson, D.

    2014-01-01

    Early studies reported preserved formulaic language in left hemisphere damaged subjects and reduced incidence of formulaic expressions in the conversational speech of stroke patients with right hemispheric damage. Clinical observations suggest a possible role also of subcortical nuclei. This study examined formulaic language in the spontaneous speech of stroke patients with left, right, or subcortical damage. Four subjects were interviewed and their speech samples compared to normal speakers. Raters classified formulaic expressions as speech formulae, fillers, sentence stems, and proper nouns. Results demonstrated that brain damage affected novel and formulaic language competence differently, with a significantly smaller proportion of formulaic expressions in subjects with right or subcortical damage compared to left hemisphere damaged or healthy speakers. These findings converge with previous studies that support the proposal of a right hemisphere/subcortical circuit in the management of formulaic expressions, based on a dual-process model of language incorporating novel and formulaic language use. PMID:19382014

  18. Rammered Earth Wall 

    E-print Network

    Unknown

    2011-08-17

    FIELD MEASUREMENT OF LATERAL EARTH PRESSURES ON RETAINING WALLS A Thesis by Michael Riggins Submitted to the Graduate College of Texas ARM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August 1974... Major Subject: Civil Engineering FIELD MEASUREMENT OF LATERAL EARTH PRESSURES ON RETAINING WALLS A Thesis by Michael Riggins Approved as to style and content by: Cha rman of Committee Memb r Head of Departm t P Etc Member August 1974 ABSTRACT...

  19. Measuring Wall Insulation

    NASA Astrophysics Data System (ADS)

    Parks, Beth; Kurkel, Kevin; Zranchev, Amanda; Brown, Clayton

    2011-03-01

    Currently, the only way for homeowners to learn about the effectiveness of their home insulation is to hire an energy auditor. This difficulty deters homeowners from taking action to improve energy efficiency. We have developed a simple device to measure wall insulation by measuring the temperature difference between the wall surface and the interior air. This device is effective in diagnosing cases of low insulation.

  20. Conducting Wall Hall Thrusters

    NASA Technical Reports Server (NTRS)

    Goebel, Dan M.; Hofer, Richard R.; Mikellides, Ioannis G.; Katz, Ira; Polk, James E.; Dotson, Brandon

    2013-01-01

    A unique configuration of the magnetic field near the wall of Hall thrusters, called Magnetic Shielding, has recently demonstrated the ability to significantly reduce the erosion of the boron nitride (BN) walls and extend the life of Hall thrusters by orders of magnitude. The ability of magnetic shielding to minimize interactions between the plasma and the discharge chamber walls has for the first time enabled the replacement of insulating walls with conducting materials without loss in thruster performance. The boron nitride rings in the 6 kW H6 Hall thruster were replaced with graphite that self-biased to near the anode potential. The thruster efficiency remained over 60% (within two percent of the baseline BN configuration) with a small decrease in thrust and increase in Isp typical of magnetically shielded Hall thrusters. The graphite wall temperatures decreased significantly compared to both shielded and unshielded BN configurations, leading to the potential for higher power operation. Eliminating ceramic walls makes it simpler and less expensive to fabricate a thruster to survive launch loads, and the graphite discharge chamber radiates more efficiently which increases the power capability of the thruster compared to conventional Hall thruster designs.

  1. Empirical formulas for direct double ionization by bare ions: Z = - 1 to 92

    DOE PAGESBeta

    DuBois, R. D.; Santos, A. C. F.; Manson, S. T.

    2014-11-01

    Experimental cross sections and cross-section ratios reported in the literature for direct double ionization of the outer shells of helium, neon, and argon atoms resulting from bare ions ranging from protons to uranium and for antiprotons are analyzed in terms of a first- and second-order interference model originally proposed by McGuire [J. H. McGuire, Phys. Rev. Lett. 49, 1153 (1982)]. Empirical formulas for the various contributions to double ionization plus information about the phase difference between the first- and second-order mechanisms are extracted from the data. Projectile and target scalings are also extracted. Total cross sections and their ratios determined using these formulas and scalings are shown to be in very good agreement with experimental data for lower-Z projectiles and impact velocities larger than 1 a.u. For very-high-Z projectiles, the amount of double ionization is overestimated, probably due to saturation of probabilities that is not accounted for in scaling formulas.

  2. Empirical formulas for direct double ionization by bare ions: Z = - 1 to 92

    DOE PAGESBeta

    DuBois, R. D.; Santos, A. C. F.; Manson, S. T.

    2014-11-01

    Experimental cross sections and cross-section ratios reported in the literature for direct double ionization of the outer shells of helium, neon, and argon atoms resulting from bare ions ranging from protons to uranium and for antiprotons are analyzed in terms of a first- and second-order interference model originally proposed by McGuire [J. H. McGuire, Phys. Rev. Lett. 49, 1153 (1982)]. Empirical formulas for the various contributions to double ionization plus information about the phase difference between the first- and second-order mechanisms are extracted from the data. Projectile and target scalings are also extracted. Total cross sections and their ratios determinedmore »using these formulas and scalings are shown to be in very good agreement with experimental data for lower-Z projectiles and impact velocities larger than 1 a.u. For very-high-Z projectiles, the amount of double ionization is overestimated, probably due to saturation of probabilities that is not accounted for in scaling formulas.« less

  3. Miniature Laser Doppler Velocimeter for Measuring Wall Shear

    NASA Technical Reports Server (NTRS)

    Gharib, Morteza; Modarress, Darius; Forouhar, Siamak; Fourguette, Dominique; Taugwalder, Federic; Wilson, Daniel

    2005-01-01

    A miniature optoelectronic instrument has been invented as a nonintrusive means of measuring a velocity gradient proportional to a shear stress in a flow near a wall. The instrument, which can be mounted flush with the wall, is a variant of a basic laser Doppler velocimeter. The laser Doppler probe volume can be located close enough to the wall (as little as 100 micron from the surface) to lie within the viscosity-dominated sublayer of a turbulent boundary layer. The instrument includes a diode laser, the output of which is shaped by a diffractive optical element (DOE) into two beams that have elliptical cross sections with very high aspect ratios.

  4. Chaotrope-soluble cell wall glycoproteins of Volvox and some members of the Zygnematophyceae immunologically related to the ‘150 kDa’ cell wall glycoprotein of Chlamydomonas reinhardtii

    Microsoft Academic Search

    Jürgen Voigt; Hans-Peter Vogeler; Wilfried A. König; Dagmar Wrann; Marianne Mix

    1995-01-01

    As previously described, the cell wall of Chlamydomonas reinhardtii contains several chaotrope-soluble glycoproteins with similar sugar compositions, but considerably different proportions of hydroxyproline. All these hydroxyproline-containing cell wall glycoproteins are recognized by a polyclonal antibody raised against the purified ‘150 kDa’ cell wall glycoprotein of Chlamydomonas reinhardtii. This antibody also cross-reacts with some polypeptides present in the LiCl-extracts from intact

  5. An Infrastructure for Community Walls

    Microsoft Academic Search

    Torstein Hoem; Christopher Pharo Gl

    Abstract The Community Wall system is a system for supporting informal cooperation. In this report, we describe a ?exible architecture for implementing a person- alizable wall system. The wall system is based on displays hanging in public areas displaying information of public interest, that all persons passing by the walls can read. In addition, registered users can personalize the display

  6. Inter-wall bridging induced peeling of multi-walled carbon nanotubes during tensile failure in aluminum matrix composites.

    PubMed

    Chen, Biao; Li, Shufeng; Imai, Hisashi; Umeda, Junko; Takahashi, Makoto; Kondoh, Katsuyoshi

    2015-02-01

    In situ scanning electron microscopy (SEM) observation of a tensile test was performed to investigate the fracturing behavior of multi-walled carbon nanotubes (MWCNTs) in powder metallurgy Al matrix composites. A multiple peeling phenomenon during MWCNT fracturing was clearly observed. Its formation mechanism and resultant effect on the composite strength were examined. Through transition electron microscopy characterizations, it was observed that defective structures like inter-wall bridges cross-linked adjacent walls of MWCNTs. This structure was helpful to improve the inter-wall bonding conditions, leading to the effective load transfer between walls and resultant peeling behaviors of MWCNTs. These results might provide new understandings of the fracturing mechanisms of carbon nanotube reinforcements for designing high-performance nanocomposites. PMID:25437849

  7. A flood-flow formula for Connecticut

    USGS Publications Warehouse

    Bigwood, B.L.; Thomas, M.P.

    1955-01-01

    A study of the frequency and magnitude of floods within the Connecticut area is contained in this report. Annual flood discharges for 44 stream-gaging stations whose records range in length from l0 to 40 years are presented and a regional flood-frequency relationship developed based upon the ratios of all floods to the mean annual flood at each of these locations. Definition of this curve for floods of larger recurrence intervals is based upon historical studies of extraordinary floods which have occurred within the area. For ungaged areas, the mean annual flood value may be determined by use of a flood-flow formula based upon the topographic characteristics of drainage area and basin slope. The development of this formula also is included.

  8. Message passing for quantified Boolean formulas

    E-print Network

    Zhang, Pan; Zdeborová, Lenka; Zecchina, Riccardo

    2012-01-01

    We introduce two types of message passing algorithms for quantified Boolean formulas (QBF). The first type is a message passing based heuristics that can prove unsatisfiability of the QBF by assigning the universal variables in such a way that the remaining formula is unsatisfiable. In the second type, we use message passing to guide branching heuristics of a Davis-Putnam Logemann-Loveland (DPLL) complete solver. Numerical experiments show that on random QBFs our branching heuristics gives robust exponential efficiency gain with respect to the state-of-art solvers. We also manage to solve some previously unsolved benchmarks from the QBFLIB library. Apart from this our study sheds light on using message passing in small systems and as subroutines in complete solvers.

  9. DEFORMATIONS OF THE TAYLOR FORMULA EMMANUEL FERRAND

    E-print Network

    Ferrand, Emmanuel

    of the Taylor formula, as explained below. Given a polynomial P of degree n with complex coe#cients, the Taylor be stated as follows. Denote by P and D the semi­infinite matrices whose coe#cients are, respectively, P i,j = # i j # and D i,j = i if i = j + 1 and 0 otherwise, (i, j) # N 2 . Then P = exp(D). P

  10. The entropy formula for linear heat equation

    Microsoft Academic Search

    Lei Ni

    2004-01-01

    We derive the entropy formula for the linear heat equation on general Riemannian manifolds and prove that it is monotone non-increasing\\u000a on manifolds with nonnegative Ricci curvature. As applications, we study the relation between the value of entropy and the\\u000a volume of balls of various scales. The results are simpler version, without Ricci flow, of Perelman ’s recent results on

  11. A Generalized Formula to Determine Pythagorean Triples

    ERIC Educational Resources Information Center

    Mohapatra, Amar Kumar; Prakash, Nupur

    2010-01-01

    This note proposes a unique solutions to find out the value of x, y and z which satisfies the equation x[superscript 2] + y[superscript 2] = z[superscript 2]. The uniqueness of the proposed formulae is to find the total number of y's and z's at a given value of x. The value of y and z can be calculated by factoring x[superscript 2] or…

  12. A conductor formula for completed group algebras

    E-print Network

    Nickel, Andreas

    2012-01-01

    Let o be the ring of integers in a finite extension of Q_p. If G is a finite group and Gamma is a maximal order containing the group ring o[G], Jacobinski's conductor formula gives a complete description of the central conductor of Gamma into o[G] in terms of characters of G. We prove a similar result for completed group algebras o[[G

  13. A Volume Formula for Generalised Hyperbolic Tetrahedra

    Microsoft Academic Search

    Akira Ushijima

    A generalised hyperbolic tetrahedron is a polyhedron (possibly noncompact) with finite volume in hyperbolic space, obtained\\u000a from a tetrahedron by the polar truncation at the vertices lying outside the space. In this paper it is proved that a volume\\u000a formula for ordinary hyperbolic tetrahedra devised by J. Murakami and M. Yano can be applied to such generalised tetrahedra.\\u000a There are

  14. The Logarithmic Tail of Néel Walls

    NASA Astrophysics Data System (ADS)

    Melcher, Christof

    We study the multiscale problem of a parametrized planar 180° rotation of magnetization states in a thin ferromagnetic film. In an appropriate scaling and when the film thickness is comparable to the Bloch line width, the underlying variational principle has the form <FORMULA FORM="DISPLAY" DISC="MATH"> where the reduced stray-field operator Q approximates (-?)1/2 as the quality factor Q tends to zero. We show that the associated Néel wall profile u exhibits a very long logarithmic tail. The proof relies on limiting elliptic regularity methods on the basis of the associated Euler-Lagrange equation and symmetrization arguments on the basis of the variational principle. Finally we study the renormalized limit behavior as Q tends to zero.

  15. 75 FR 38797 - Predominantly Black Institutions Formula Grant Program

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-06

    ...EDUCATION [CFDA No. 84.031P] Predominantly Black Institutions Formula Grant Program ACTION: Notice inviting applications for new...awards for FY 2010 for the Predominantly Black Institutions Formula Grant Program (PBI Notice). The PBI Notice incorrectly...

  16. Calculating percentage agreement correctly but writing its formula incorrectly

    E-print Network

    Araujo, John; Born, David G.

    1985-01-01

    The conclusion that many behavioral scientists can correctly calculate percentage agreement, but most cannot write the formula used to calculate percentage agreement, is substantiated; purported proof for the correct formula is described....

  17. 27 CFR 25.58 - New and superseding formulas.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY LIQUORS BEER Miscellaneous Provisions Formulas § 25.58 New and...approved formula; (5) Change an approved processing, filtration, or other special method of manufacture that requires...

  18. 40 CFR 1065.630 - 1980 international gravity formula.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...2011-07-01 false 1980 international gravity formula. 1065.630 Section 1065.630...Requirements § 1065.630 1980 international gravity formula. The acceleration of Earth's gravity, a g , varies depending on your...

  19. 40 CFR 1065.630 - 1980 international gravity formula.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...2010-07-01 false 1980 international gravity formula. 1065.630 Section 1065.630...Requirements § 1065.630 1980 international gravity formula. The acceleration of Earth's gravity, a g , varies depending on your...

  20. 47 CFR 73.190 - Engineering charts and related formulas.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...Telecommunication 4 2014-10-01 2014-10-01 false Engineering charts and related formulas. 73.190 Section 73.190...BROADCAST SERVICES AM Broadcast Stations § 73.190 Engineering charts and related formulas. (a) This section...

  1. 47 CFR 73.190 - Engineering charts and related formulas.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...Telecommunication 4 2013-10-01 2013-10-01 false Engineering charts and related formulas. 73.190 Section 73.190...BROADCAST SERVICES AM Broadcast Stations § 73.190 Engineering charts and related formulas. (a) This section...

  2. 47 CFR 73.190 - Engineering charts and related formulas.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Telecommunication 4 2010-10-01 2010-10-01 false Engineering charts and related formulas. 73.190 Section 73.190...BROADCAST SERVICES AM Broadcast Stations § 73.190 Engineering charts and related formulas. (a) This section...

  3. 47 CFR 73.190 - Engineering charts and related formulas.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...Telecommunication 4 2011-10-01 2011-10-01 false Engineering charts and related formulas. 73.190 Section 73.190...BROADCAST SERVICES AM Broadcast Stations § 73.190 Engineering charts and related formulas. (a) This section...

  4. 47 CFR 73.190 - Engineering charts and related formulas.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Telecommunication 4 2012-10-01 2012-10-01 false Engineering charts and related formulas. 73.190 Section 73.190...BROADCAST SERVICES AM Broadcast Stations § 73.190 Engineering charts and related formulas. (a) This section...

  5. 40 CFR 1065.630 - 1980 international gravity formula.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...2012-07-01 false 1980 international gravity formula. 1065.630 Section 1065.630...Requirements § 1065.630 1980 international gravity formula. The acceleration of Earth's gravity, a g , varies depending on your...

  6. 40 CFR 1065.630 - 1980 international gravity formula.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...2013-07-01 false 1980 international gravity formula. 1065.630 Section 1065.630...Requirements § 1065.630 1980 international gravity formula. The acceleration of Earth's gravity, a g , varies depending on your...

  7. Supersymmetric Quantum Mechanics and Lefschetz fixed-point formula

    E-print Network

    Si Li

    2005-11-09

    We review the explicit derivation of the Gauss-Bonet and Hirzebruch formulae by physical model and give a physical proof of the Lefschetz fixed-point formula by twisting boundary conditions for the path integral.

  8. 8 On Reconstruction Formulas and Algorithms for the

    E-print Network

    Kunyansky, Leonid

    89 8 On Reconstruction Formulas and Algorithms for the Thermoacoustic Tomography Mark Agranovsky ........................................................................................................................................................................ 89 8.2 Thermoacoustic Tomography

  9. Playing Robinson's Wall Game

    NSDL National Science Digital Library

    In this activity, students study a stone wall by carefully sketching it and observing color, grain size, sedimentary structures, weathering characteristics, and possible origin of the stones. As an alternative to save time, the instructor can provide a sketch of part of the wall. A simple skeleton sketch that depicts the outline of each block in the area of interest is shown as an example. Another way to make such a sketch is to photograph the wall and trace the outlines of the stone blocks onto a sheet of tracing paper. The drawing can then be enlarged using a photocopier. Follow-up discussions include simple comparisons of weathering characteristics or more advanced comparisons of grain size and composition between the stones.

  10. Musculoskeletal chest wall pain

    PubMed Central

    Fam, Adel G.; Smythe, Hugh A.

    1985-01-01

    The musculoskeletal structures of the thoracic wall and the neck are a relatively common source of chest pain. Pain arising from these structures is often mistaken for angina pectoris, pleurisy or other serious disorders. In this article the clinical features, pathogenesis and management of the various musculoskeletal chest wall disorders are discussed. The more common causes are costochondritis, traumatic muscle pain, trauma to the chest wall, “fibrositis” syndrome, referred pain, psychogenic regional pain syndrome, and arthritis involving articulations of the sternum, ribs and thoracic spine. Careful analysis of the history, physical findings and results of investigation is essential for precise diagnosis and effective treatment. ImagesFig. 3Fig. 4Fig. 5 PMID:4027804

  11. Thermal treatment wall

    DOEpatents

    Aines, Roger D. (Livermore, CA); Newmark, Robin L. (Livermore, CA); Knauss, Kevin G. (Livermore, CA)

    2000-01-01

    A thermal treatment wall emplaced to perform in-situ destruction of contaminants in groundwater. Thermal destruction of specific contaminants occurs by hydrous pyrolysis/oxidation at temperatures achievable by existing thermal remediation techniques (electrical heating or steam injection) in the presence of oxygen or soil mineral oxidants, such as MnO.sub.2. The thermal treatment wall can be installed in a variety of configurations depending on the specific objectives, and can be used for groundwater cleanup, wherein in-situ destruction of contaminants is carried out rather than extracting contaminated fluids to the surface, where they are to be cleaned. In addition, the thermal treatment wall can be used for both plume interdiction and near-wellhead in-situ groundwater treatment. Thus, this technique can be utilized for a variety of groundwater contamination problems.

  12. Mouse bladder wall injection.

    PubMed

    Fu, Chi-Ling; Apelo, Charity A; Torres, Baldemar; Thai, Kim H; Hsieh, Michael H

    2011-01-01

    Mouse bladder wall injection is a useful technique to orthotopically study bladder phenomena, including stem cell, smooth muscle, and cancer biology. Before starting injections, the surgical area must be cleaned with soap and water and antiseptic solution. Surgical equipment must be sterilized before use and between each animal. Each mouse is placed under inhaled isoflurane anesthesia (2-5% for induction, 1-3% for maintenance) and its bladder exposed by making a midline abdominal incision with scissors. If the bladder is full, it is partially decompressed by gentle squeezing between two fingers. The cell suspension of interest is intramurally injected into the wall of the bladder dome using a 29 or 30 gauge needle and 1 cc or smaller syringe. The wound is then closed using wound clips and the mouse allowed to recover on a warming pad. Bladder wall injection is a delicate microsurgical technique that can be mastered with practice. PMID:21775962

  13. Personal Display Wall

    SciTech Connect

    Shalf, John; Bethel, E. Wes; Siegerist, Cristina

    2004-01-01

    The LBNL Visualization Group has created a tiled display wall design that uses components that are readily available from a local hardware store and/or multiple online vendors, and requires minimal tools and skill to assemble. The result is a low-cost, easy to assemble tiled display device that is readily accessible to visualization researchers and domain scientists alike. The LBNL Personal Display (PD) Wall differentiates itself from other LCD-matrix displays because its design minimizes cost and complexity while retaining the functionality of its more expensive tiled display brethren. The PD-Wall occupies the same amount of desktop area as a large flatscreen LCD display panel. LBNL will be publishing and distributing simple plans so that any laboratory or user site can construct their own copies of this device.

  14. An Academic Formulas List: New Methods in Phraseology Research

    ERIC Educational Resources Information Center

    Simpson-Vlach, Rita; Ellis, Nick C.

    2010-01-01

    This research creates an empirically derived, pedagogically useful list of formulaic sequences for academic speech and writing, comparable with the Academic Word List (Coxhead 2000), called the Academic Formulas List (AFL). The AFL includes formulaic sequences identified as (i) frequent recurrent patterns in corpora of written and spoken language,…

  15. 27 CFR 20.115 - Ink general-use formula.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 false Ink general-use formula. 20.115 Section 20.115 Alcohol...DISTRIBUTION AND USE OF DENATURED ALCOHOL AND RUM Formulas and Statements of Process General-Use Formulas § 20.115 Ink general-use...

  16. A family of inversion formulas in Thermoacoustic Tomography

    E-print Network

    Nguyen, Linh V

    2009-01-01

    We present a family of closed form inversion formulas in thermoacoustic tomography in the case of a constant sound speed. The formulas are presented in both time-domain and frequency-domain versions. As special cases, they imply most of the previously known filtered backprojection type formulas.

  17. Rice Formula for processes with jumps and applications Federico Dalmao

    E-print Network

    Rice Formula for processes with jumps and applications Federico Dalmao Ernesto Mordecki December 24, 2012 Abstract We extend Rice Formula for a process that is the sum of a smooth process and a pure jump give a generalization, to the non-stationary case, of Borovkov-Last's Rice Formula for Piecewise

  18. 27 CFR 21.48 - Formula No. 23-F.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...2013-04-01 false Formula No. 23-F. 21.48 Section 21.48 Alcohol...Authorized Uses § 21.48 Formula No. 23-F. (a) Formula. To every 100 gallons...P., and 1 gallon of bergamot oil, N.F. XI, or bay oil (myrcia oil),...

  19. UNH Precision Racing -Formula SAE Team 2009 -Car #86

    E-print Network

    New Hampshire, University of

    UNH Precision Racing - Formula SAE Team 2009 - Car #86 The Formula SAE competition is an annual to conceive, design, fabricate, and compete with a scaled down version of a Formula style racecar. The car is designed with the amateur, weekend autocross racer in mind. The car is designed for high performance

  20. The Understanding and Structure Analyzing for Online Handwritten Chemical Formulas

    Microsoft Academic Search

    Xin Wang; Guangshun Shi; Jufeng Yang

    2009-01-01

    In this paper, we propose a novel approach for understanding and analyzing the online handwritten chemical formulas. With the structural characteristics, semantic rules, and more importantly grammatical rules, the analyzing process is divided into 3 levels: formula level, molecule level, and text level. A formal description of the chemical formula based-on the grammatical rules is summed up and applied to

  1. A Syntactic Approach for Handwritten Mathematical Formula Recognition

    Microsoft Academic Search

    Abdelwaheb Belaid; Jean-Paul Haton

    1984-01-01

    Mathematical formulas are good examples of two-dimensional patterns as well as pictures or graphics. The use of syntactic methods is useful for interpreting such complex patterns. In this paper we propose a system for the interpretation of 2-D mathematic formulas based on a syntactic parser. This system is able to recognize a large class of 2-D mathematic formulas written on

  2. Macro-microscopic mass formulae and nuclear mass predictions

    E-print Network

    Boyer, Edmond

    , France 1 Abstract Different mass formulae derived from the liquid drop model and the pairing and shell; 21.60.Ev; 21.60.Cs Keywords: Mass formula, liquid drop model, Wigner term, curvature energy. 1 E performed from mass formulae working well for the known isotopes. Semi-macroscopic liquid drop models

  3. Bayes' Formula and examples Math 30530, Fall 2013

    E-print Network

    Galvin, David

    Bayes' Formula and examples Math 30530, Fall 2013 September 8, 2013 Math 30530 (Fall 2012) Bayes 2012) Bayes' formula September 8, 2013 2 / 7 #12;Example: Who did I beat? When I play chess, I play 30530 (Fall 2012) Bayes' formula September 8, 2013 2 / 7 #12;Example: Who did I beat? When I play chess

  4. Effects of Neurological Damage on Production of Formulaic Language

    ERIC Educational Resources Information Center

    Sidtis, Diana; Canterucci, Gina; Katsnelson, Dora

    2009-01-01

    Early studies reported preserved formulaic language in left hemisphere damaged subjects and reduced incidence of formulaic expressions in the conversational speech of stroke patients with right hemispheric damage. Clinical observations suggest a possible role also of subcortical nuclei. This study examined formulaic language in the spontaneous…

  5. Quantifier elimination for formulas constrained by quadratic equations

    Microsoft Academic Search

    Hoon Hong

    1993-01-01

    An algorithm is given for constructing a quantifier free formula (a boolean expression of polynomial equations and inequalities) equivalent to a given formula of the form: (% c R)[azzz + alz + a. = O A F], where F is a quantifier free formula in Z1, . . . . z~, z, and az, al, ao are polynomials in z

  6. Classroom note: A formula for the calculation of ?

    Microsoft Academic Search

    M. H. Poursaeed

    2003-01-01

    Formulas presented for the calculation of ?j=1j (n, k ? N do not have a closed form; they are in the form of recursive or complex formulas. Here an attempt is made to present a simple formula in which it is only necessary to compute the numerical coefficients in a recursive form, and the coefficients in turn follow a simple

  7. Illinois' School Funding Formula--A Mathematical and Geometrical Analysis.

    ERIC Educational Resources Information Center

    Toenjes, Laurence A.

    1982-01-01

    Compares Illinois' funding formula with a mathematical model for resource compensating formulas. Describes the variables used (including district enrollment, wealth, tax effort, and state guaranteed valuation). Uses graphs to illustrate varying equity effects of the formula for K-12, K-8, and high school districts, both statewide and in selected…

  8. p-adic Gauss integrals from the Poison summarizing formula

    E-print Network

    Prokhorenko, D V

    2011-01-01

    In the present paper we show how to obtain the well-known formula for Gauss sums and the Gauss reciprocity low from the Poison summarizing formula by using some ideas of renormalization and ergodic theories. We also apply our method to obtain new simple derivation of the standard formula for p-adic Gauss integrals.

  9. p-adic Gauss integrals from the Poison summarizing formula

    E-print Network

    D. V. Prokhorenko

    2011-01-04

    In the present paper we show how to obtain the well-known formula for Gauss sums and the Gauss reciprocity low from the Poison summarizing formula by using some ideas of renormalization and ergodic theories. We also apply our method to obtain new simple derivation of the standard formula for p-adic Gauss integrals.

  10. Micro-grooved heat transfer combustor wall

    NASA Technical Reports Server (NTRS)

    Ward, Steven D. (Inventor)

    1994-01-01

    A gas turbine engine hot section combustor liner is provided a non-film cooled portion of a heat transfer wall having a hot surface and a plurality of longitudinally extending micro-grooves disposed in the portion of the wall along the hot surface in a direction parallel to the direction of the hot gas flow. The depth of the micro-grooves is very small and on the order of magnitude of a predetermined laminar sublayer of a turbulent boundary layer. The micro-grooves are sized so as to inhibit heat transfer from the hot gas flow to the hot surface of the wall while reducing NOx emissions of the combustor relative to an otherwise similar combustor having a liner wall portion including film cooling apertures. In one embodiment the micro-grooves are about 0.001 inches deep and have a preferred depth range of from about 0.001 inches to 0.005 inches and which are square, rectangular, or triangular in cross-section and the micro-grooves are spaced about one width apart.

  11. Layered Trough Walls

    NASA Technical Reports Server (NTRS)

    2005-01-01

    2 May 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows layers of bedrock exposed in the walls on both sides of an east-west-trending trough in the Memnonia/Mangala Valles region. Large boulders released from these rocky trough walls are found on the slopes and on the trough floor.

    Location near: 18.4oS, 148.8oW Image width: 3 km (1.9 mi) Illumination from: upper left Season: Southern Winter

  12. Projectile and Lab Frame Differential Cross Sections for Electromagnetic Dissociation

    NASA Technical Reports Server (NTRS)

    Norbury, John W.; Adamczyk, Anne; Dick, Frank

    2008-01-01

    Differential cross sections for electromagnetic dissociation in nuclear collisions are calculated for the first time. In order to be useful for three - dimensional transport codes, these cross sections have been calculated in both the projectile and lab frames. The formulas for these cross sections are such that they can be immediately used in space radiation transport codes. Only a limited amount of data exists, but the comparison between theory and experiment is good.

  13. 4. DETAIL VIEW OF CROSS SECTION OF STRUCTURE, SHOWING EXTERIOR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. DETAIL VIEW OF CROSS SECTION OF STRUCTURE, SHOWING EXTERIOR FACINGS LINED WITH RUBBLE BACKING AND EARTH INFILL, LOOKING EAST - Rock Wall, North side of Battle Creek Canyon, Shingletown, Shasta County, CA

  14. Early complication in Sickle Cell Anemia children due to A(TA)<formula>_n> TAA polymorphism at the promoter of UGT1A1 gene.

    PubMed

    Chaouch, Leila; Talbi, Emna; Moumni, Imen; Ben Chaabene, Arij; Kalai, Miniar; Chaouachi, Dorra; Mallouli, Fethi; Ghanem, Abderraouf; Abbes, Salem

    2013-04-25

    AIM: To determine the implication of the polymorphism namely A(TA)nTAA of UGT1A1 in lithogenesis for the first time in Tunisia among sickle cell anemia (SCA) children patients. MATERIAL AND METHODS: Our study was performed in 2010 and it involved 76 subjects chosen as control group characterized with normal hemoglobin status and presence of cholelithiasis and 102 SCA pediatric patients among whom 52 have cholelithiasis. We analyzed the polymorphism A(TA)<formula>_{n}> TAA at the UGT1A1 promoter and the relationships between the various A(TA)<formula>_{n}> TAA genotypes and alleles and bilirubin levels and occurrence of cholelithiasis. RESULTS AND DISCUSSION: The repartition of genotypes found according to serum bilirubin level shows a significant association between genotypes carried variant (TA)<formula>_{7}formula> and hyperbilirubinemia (p< 0.05). We demonstrated the association of two genotypes with gallstones formation among SCA children patients: (TA)<formula>_{7}formula>/(TA)>_{7}formula> and (TA)<formula>_{7}formula>/(TA)>_{8}formula> with p=8.1 × 10<formula>^{ - 8}formula> and p=0.01 respectively. (TA)<formula>_{7}formula> and (TA)<formula>_{8}formula> allele variants act as a risk factor for early gallstones formation in SCA patients with p=5.8 × 10<formula>^{ -9}formula> and p=0.01 respectively. As for the control group only the genotype (TA)<formula>_{7}formula>/(TA)>_{7}formula> presented a risk factor for gallstones formation. CONCLUSION: The novelty of this report is that it is the first time that a similar study was made on the Tunisian children sickle cell population and that the results show a clear association of (TA)<formula>_{7}formula> variant in early gallstones formation in Tunisian SCA children. Interestingly our findings highlighted the association of (TA)<formula>_{8}formula> variant as well, which was not found in previous studies. PMID:23619273

  15. Derivation of New Readability Formulas (Automated Readability Index, Fog Count and Flesch Reading Ease Formula) for Navy Enlisted Personnel.

    ERIC Educational Resources Information Center

    Kincaid, J. P.; And Others

    Three readability formulas were recalculated to be more suitable for Navy use. The three formulas are the Automated Readability Index (ARI), Fog Count, and Flesch Reading Ease Formula. They were derived from test results of 531 Navy enlisted personnel enrolled in four technical training schools. Personnel were tested for their reading…

  16. A new analytical formula for neutron capture gamma dose calculations in double-bend mazes in radiation therapy

    PubMed Central

    Ghiasi, Hosein; Mesbahi, Asghar

    2012-01-01

    Background Photoneutrons are produced in radiation therapy with high energy photons. Also, capture gamma rays are the byproduct of neutrons interactions with wall material of radiotherapy rooms. Aim In the current study an analytical formula was proposed for capture gamma dose calculations in double bend mazes in radiation therapy rooms. Materials and methods A total of 40 different layouts with double-bend mazes and a 18 MeV photon beam of Varian 2100 Clinac were simulated using MCNPX Monte Carlo (MC) code. Neutron capture gamma ray dose equivalent was calculated by the MC method along the maze and at the maze entrance door of all the simulated rooms. Then, all MC resulted data were fitted to an empirical formula for capture gamma dose calculations. Wu–McGinley analytical formula for capture gamma dose equivalent at the maze entrance door in single-bend mazes was also used for comparison purposes. Results For capture gamma dose equivalents at the maze entrance door, the difference of 2–11% was seen between MC and the derived equation, while the difference of 36–87% was found between MC and the Wu–McGinley methods. Conclusion Our results showed that the derived formula results were consistent with the MC results for all of 40 different geometries. However, as a new formula, further evaluations are required to validate its use in practical situations. Finally, its application is recommend for capture gamma dose calculations in double-bend mazes to improve shielding calculations. PMID:24377027

  17. 75 FR 23777 - Agency Information Collection Activities; Proposed Collection; Comment Request; Infant Formula...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-04

    ...Proposed Collection; Comment Request; Infant Formula Requirements AGENCY: Food and Drug Administration...collection regarding the manufacture of infant formula, including infant formula labeling, quality control procedures,...

  18. A Monopole Wall

    E-print Network

    R. S. Ward

    2006-12-06

    We construct, numerically, a solution of the SU(2) Bogomolny equations corresponding to a sheet of BPS monopoles. It represents a domain wall between a vacuum region and a region of constant energy density, and it is the smoothed-out version of the planar sheet of Dirac monopoles obtained by linear superposition.

  19. Great Wall Historic

    E-print Network

    Hacker, Randi

    2010-04-07

    Broadcast Transcript: Nothing says "Do Not Disturb" more effectively than a 3,000-mile fortification of brick and mortar. The Great Wall of China, or chang cheng, was begun over 1,000 years ago by Qin Shi Huang Di, the first Emperor...

  20. Wall turbulence control

    NASA Technical Reports Server (NTRS)

    Wilkinson, Stephen P.; Lindemann, A. Margrethe; Beeler, George B.; Mcginley, Catherine B.; Goodman, Wesley L.; Balasubramanian, R.

    1986-01-01

    A variety of wall turbulence control devices which were experimentally investigated are discussed; these include devices for burst control, alteration of outer flow structures, large eddy substitution, increased heat transfer efficiency, and reduction of wall pressure fluctuations. Control of pre-burst flow was demonstrated with a single, traveling surface depression which is phase-locked to elements of the burst production process. Another approach to wall turbulence control is to interfere with the outer layer coherent structures. A device in the outer part of a boundary layer was shown to suppress turbulence and reduce drag by opposing both the mean and unsteady vorticity in the boundary layer. Large eddy substitution is a method in which streamline curvature is introduced into the boundary layer in the form of streamwise vortices. Riblets, which were already shown to reduce turbulent drag, were also shown to exhibit superior heat transfer characteristics. Heat transfer efficiency as measured by the Reynolds Analogy Factor was shown to be as much as 36 percent greater than a smooth flat plate in a turbulent boundary layer. Large Eddy Break-Up (LEBU) which are also known to reduce turbulent drag were shown to reduce turbulent wall pressure fluctuation.

  1. The Wall Coverings Challenge

    ERIC Educational Resources Information Center

    Roman, Harry T.

    2012-01-01

    Students love nothing better than personalizing their space--desk, bedroom, or even their cars. This article describes a classroom challenge that gives students a chance to let their spirits soar with the invention of a new form of wall treatment. A trip to a big box store might prove to be most helpful for students to visualize their new product…

  2. A School without Walls.

    ERIC Educational Resources Information Center

    Venuti, Len Tai

    1994-01-01

    During the summer, selected students of Hawaiian ancestry who have completed seventh or eighth grade participate in a boarding program with outdoor activities such as pulling taro, star gazing, and camping. The activities eliminate walls of doubt and fear and nurture self-confidence, creativity, personal growth, leadership, and cultural awareness.…

  3. Cafe Wall Illusion

    NSDL National Science Digital Library

    Exploratorium

    2012-06-26

    In this fun and interactive online exhibit, the straight lines of a tile wall appear to curve. The learner moves the rows of tiles and changes the color of the grout to achieve the intriguing effect. Although the exhibit requires a computer, the concept can be adapted into a longer, hands-on exploration of optical illusions.

  4. Fly on the Wall

    ERIC Educational Resources Information Center

    Berry, Dave; Korpan, Cynthia

    2009-01-01

    This paper describes the implementation of a peer observation program at the University of Victoria called the Lecture Club. The observers are not interactive during the class--they are the proverbial flies on the wall. The paper identifies the program as self-developmental, discussing the attributes of this learning-to-teach and peer-sharing…

  5. Idea Bank: Word Wall

    NSDL National Science Digital Library

    Ben Vallejo, Jr.

    2006-02-01

    Science is a vocabulary-rich subject and students' knowledge of vocabulary relates directly to their comprehension. That is why it is important to provide a variety of opportunities for students to practice vocabulary. In this inquiry-based activity, students work together to create vocabulary cards to contribute to the class "Word Wall."

  6. 40. RETAINING WALL CONSTRUCTION SHOWING PORTION OF COMPLETED WALL. BACKFILLING ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    40. RETAINING WALL CONSTRUCTION SHOWING PORTION OF COMPLETED WALL. BACKFILLING BY POWER SHOVEL IN PROGRESS. ZION NP NEGATIVE NO. 1490. PHOTOGRAPHER: PARKER, NO DATE - Zion-Mount Carmel Highway, Springdale, Washington County, UT

  7. Typical Window, Interior Wall Paint Sequence, Wall Section, and Foundation ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Typical Window, Interior Wall Paint Sequence, Wall Section, and Foundation Sections - Civilian Conservation Corps (CCC) Camp NP-5-C, Barracks No. 5, CCC Camp Historic District at Chapin Mesa, Cortez, Montezuma County, CO

  8. 4. CONSTRUCTION DETAIL, SW CORNER, SHOWING RETAINING WALL, BRIDGE WALL ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. CONSTRUCTION DETAIL, SW CORNER, SHOWING RETAINING WALL, BRIDGE WALL AND EROSION ON ROAD SURFACE. - Bridalveil Fall Bridge No. 3, Spanning Bridalveil Creek on carriage road, Yosemite Village, Mariposa County, CA

  9. EAST WALL OF CRYSTALLIZER WING TO THE LEFT, END WALL ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    EAST WALL OF CRYSTALLIZER WING TO THE LEFT, END WALL OF CRUSHING MILL IN CENTER. GABLE END OF BOILING HOUSE IN LEFT BACKGROUND. VIEW FROM THE SOUTH - Kekaha Sugar Company, Sugar Mill Building, 8315 Kekaha Road, Kekaha, Kauai County, HI

  10. Some new addition formulae for Weierstrass elliptic functions.

    PubMed

    Eilbeck, J Chris; England, Matthew; Onishi, Yoshihiro

    2014-11-01

    We present new addition formulae for the Weierstrass functions associated with a general elliptic curve. We prove the structure of the formulae in n-variables and give the explicit addition formulae for the 2- and 3-variable cases. These new results were inspired by new addition formulae found in the case of an equianharmonic curve, which we can now observe as a specialization of the results here. The new formulae, and the techniques used to find them, also follow the recent work for the generalization of Weierstrass functions to curves of higher genus. PMID:25383018

  11. Horizontal Cross Bracing Detail, Vertical Cross Bracing Detail, Horizontal Cross ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Horizontal Cross Bracing Detail, Vertical Cross Bracing Detail, Horizontal Cross Bracing Joint, Vertical Cross Bracing End Detail - Ceylon Covered Bridge, Limberlost Park, spanning Wabash River at County Road 900 South, Geneva, Adams County, IN

  12. Cross sections of collision induced rotational transitions of polar molecules perturbed by isotropic projectiles

    Microsoft Academic Search

    Masatoshi Kajita; Hitoshi Odashima; Tadao Shimizu

    1991-01-01

    A semiempirical formula for the cross section of collision induced rotational relaxation is presented, which allows one to estimate fairly accurate values of cross sections for any pairs of polar molecules and isotropic perturbers. The cross section does not critically depend on the quantum states, but is described simply by the parameters of colliding atoms and molecules, such as van

  13. Mirror nuclei constraint in nuclear mass formula

    SciTech Connect

    Wang Ning; Liang Zuoying [Department of Physics, Guangxi Normal University, Guilin 541004 (China); Liu Min [Department of Physics, Guangxi Normal University, Guilin 541004 (China); College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875 (China); Wu, Xizhen [China Institute of Atomic Energy, Beijing 102413 (China)

    2010-10-15

    The macroscopic-microscopic mass formula is further improved by considering mirror nuclei constraint. The rms deviation with respect to 2149 measured nuclear masses is reduced to 0.441 MeV. The shell corrections, the deformations of nuclei, the neutron and proton drip lines, and the shell gaps are also investigated to test the model. The rms deviation of {alpha}-decay energies of 46 superheavy nuclei is reduced to 0.263 MeV. The predicted central position of the superheavy island could lie around N=176{approx}178 and Z=116{approx}120 according to the shell corrections of nuclei.

  14. Analytical formulae for magnetic fields in undulators

    NASA Astrophysics Data System (ADS)

    Papadichev, V. A.

    1991-07-01

    Analytical formulae are presented for the calculation of the magnetic field in various types of undulators, including plane (with and without ferromagnetic poles), helical and azimuthally symmetrical ones. The use of analytical rather than numerical methods allows one to calculate more rapidly undulator fields and to optimize them with respect to various parameters. Conformal mapping in the case of iron-pole undulators is justified by the fact that with high stray fluxes iron saturation occurs first in the magnet yoke, and the poles are far from saturation and have high magnetic permeability.

  15. The spectral side of Arthur's trace formula

    PubMed Central

    Finis, Tobias; Lapid, Erez M.; Müller, Werner

    2009-01-01

    The trace formula is one of the most important tools in the theory of automorphic forms. It was invented in the 1950's by Selberg, who mostly studied the case of hyperbolic surfaces, and was later on developed extensively by Arthur in the generality of an adelic quotient of a reductive group over a number field. Here we provide an explicit expression for the spectral side, improving Arthur's fine spectral expansion. As a result, we obtain its absolute convergence for a wide class of test functions. PMID:19717434

  16. Overweight permit formulas for simply supported bridges

    E-print Network

    Mattox, Michael Joseph

    1992-01-01

    of Moment Ratios 19 21 DETERMINATION OF GROUP WEIGHT BASED ON A GAGE OF 16 FT. . 32 Development of Allowable Moments . . . . Calculation of Distributed Loads and Group Weight DETERMINATION OF GROUP WEIGHT AND GAGE REDUCTION FORMULA BASED ON A 6 FT... Vehicle Configuration Example 3. AASHTO H15 Truck Loading 4. AASHTO H15 Lane Loading 5. Unknown Distributed Load Illustration 10 15 15 17 6. Typical H15 Simple Span Reinforced Concrete Bridge . 19 7. Typical H15 Simple Span Steel I-Beam Bridge...

  17. Classical Radiation Formula in the Rindler Frame

    NASA Astrophysics Data System (ADS)

    Hirayama, T.

    2002-10-01

    In a preceding paper [T. Hirayama, Prog. Theor. Phys. 106} (2001), 71], the power of the classical radiation emitted by a moving charge was evaluated in the Rindler frame. In this paper, we give a simpler derivation of this radiation formula, including an estimation of the directional dependence of the radiation. We find that the splitting of the energy-momentum tensor into a bound part I and an emitted part II is consistent with the three conditions introduced in the preceding paper, also for each direction within the future light cone.

  18. Casimir energy, dispersion, and the Lifshitz formula

    SciTech Connect

    Milton, Kimball A.; Wagner, Jef; Parashar, Prachi; Brevik, Iver [Oklahoma Center for High Energy Physics and Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma 73019-2061 (United States); Department of Energy and Process Engineering, Norwegian University of Science and Technology, N-7491 Trondheim (Norway)

    2010-03-15

    Despite suggestions to the contrary, we show in this paper that the usual dispersive form of the electromagnetic energy density must be used to derive the Lifshitz force between parallel dielectric media. This conclusion follows from the general form of the quantum vacuum energy, which is the basis of the multiple-scattering formalism. As an illustration, we explicitly derive the Lifshitz formula for the interaction between parallel dielectric semispaces, including dispersion, starting from the expression for the total energy of the system. The issues of constancy of the energy between parallel plates and of the observability of electrostrictive forces are briefly addressed.

  19. The Chlamydomonas cell wall: characterization of the wall framework

    Microsoft Academic Search

    SYED H. IMAM; MARTY J. BUCHANAN; WILLIAM J. SNELL

    1985-01-01

    The cell wall of the biflagellated alga Chlamydomonas reinhardtii is a multilayered, extracellular matrix composed of carbohydrates and 20-25 polypeptides. To learn more about the forces responsible for the integrity of this cellulose-deficient cell wall, we have begun studies to identify and characterize the framework of the wall and to determine the effects of the cell wall-degrading enzyme, lysin, on

  20. Infant feeding in the 20th century: formula and beikost.

    PubMed

    Fomon, S

    2001-02-01

    The early years of the 20th century were notable for improvements in general sanitation, dairying practices and milk handling. Most infants were breast-fed, often with some formula feeding as well. Availability of the home icebox permitted safe storage of milk and infant formula, and by the 1920s, feeding of orange juice and cod liver oil greatly decreased the incidence of scurvy and rickets. Use of evaporated milk for formula preparation decreased bacterial contamination and curd tension of infant formulas. From 1930 through the 1960s, breast-feeding declined and cow's milk and beikost were introduced into the diet at earlier and earlier ages. Although commercially prepared formulas, including iron-fortified formulas replaced home-prepared formulas, few infants were breast-fed or formula fed after 4-6 mo of age. Iron deficiency was prevalent. From 1970 through 1999, a resurgence of breast-feeding was associated with a prolongation of formula feeding and an increase in usage of iron-fortified formulas. By the end of the century, formula feeding of older infants had largely replaced feeding of fresh cow's milk and the prevalence of iron deficiency had greatly decreased. PMID:11160571

  1. Left ventricular wall motion estimation with tagged cine MR images: software development

    Microsoft Academic Search

    F. Sottilini; P. Clarysse; J. P. Roux; D. Revel; I. E. Magnin

    1995-01-01

    Quantitative analysis of left ventricle (LV) wall motion with imaging modalities is of a great interest for cardiac diagnostics as well as for basic physiological studies of cardiac wall shear. Some parameters (thickness, thickening, wall stress) related to the functional behavior of the myocardium, can be approximated from 2D endocardial and epicardial contours from end-systolic and end-diastolic LV cross-sections. However,

  2. Field measurements of lateral earth pressures on a pre-cast panel retaining wall 

    E-print Network

    Prescott, David Monroe

    1973-01-01

    Analysis of Backfill Material 2 Lateral Earth Pressures Measured by Pressure Cells (Psi) . . . . . . . . . . . - . ~ . ~ 3 Maximum Deviation From Zero Gage Reading and Temperature Relationship. . . . 4 Forces Measured by Force Transducers (Kips) 5... Force on Panel Measured by Pressure Cells and Force Transducers Plus Rubber Pads . 41 LIST OF FIGURES Figure 1 Cross Section of Test Wall 2 Front of Wall Page 3 Location of Earth Pressure Cells and Force Transducers . , 4 Top View of Wall. 5...

  3. Universal behavior of the [Formula: see text] transition form factors.

    PubMed

    Melikhov, Dmitri; Stech, Berthold

    2012-12-01

    The photon transition form factors of ?, ? and [Formula: see text] are discussed in view of recent measurements. It is shown that the exact axial anomaly sum rule allows a precise comparison of all three form factors at high-[Formula: see text] independent of the different structures and distribution amplitudes of the participating pseudoscalar mesons. We conclude: (i) The ?? form factor reported by Belle is in excellent agreement with the nonstrange [Formula: see text] component of the ? and [Formula: see text] form factors obtained from the BaBar measurements. (ii) Within errors, the ?? form factor from Belle is compatible with the asymptotic pQCD behavior, similar to the ? and [Formula: see text] form factors from BaBar. Still, the best fits to the data sets of ??, ??, and [Formula: see text] form factors favor a universal small logarithmic rise [Formula: see text]. PMID:23226917

  4. A new super convergent thin walled composite beam element for analysis of box beam structures

    Microsoft Academic Search

    Mira Mitra; S. Gopalakrishnan; M. Seetharama Bhat

    2004-01-01

    In this paper, a new composite thin wall beam element of arbitrary cross-section with open or closed contour is developed. The formulation incorporates the effect of elastic coupling, restrained warping, transverse shear deformation associated with thin walled composite structures. A first order shear deformation theory is considered with the beam deformation expressed in terms of axial, spanwise and chordwise bending,

  5. Glutaraldehyde-fixed kangaroo aortic wall tissue: histology, crosslink stability and calcification potential.

    PubMed

    Neethling, W M L; Hodge, A J; Glancy, R

    2003-07-15

    Stentless aortic heart valve substitutes, manufactured from biological tissues, are fixed with glutaraldehyde to cross-link collagen, reduce antigenicity, and sterilize the tissue. Despite improved cross linking, reduced antigenicity, and various anticalcification measures, the aortic wall tissue present in these prostheses tends to calcify. The aim of this study was to assess the morphology, collagen cross-link stability, and calcification potential of glutaraldehyde-preserved kangaroo aortic wall tissue as opposed to porcine aortic wall tissue. Porcine and kangaroo aortic wall tissues were fixed in 0.625% buffered glutaraldehyde. Histology and cross-link stability were examined. Calcification potential was determined in the subcutaneous rat model. Kangaroo aortic wall tissue was significantly (p < 0.01) less calcified than porcine aortic wall tissue (26.67 +/- 6.53 versus 41.959 +/- 2.75 microg/mg tissue) at 8 weeks. In conclusion, the histological differences between kangaroo and porcine aortic wall tissue correlate well with the reduced calcification potential of kangaroo aortic wall tissue. The reduced calcification potential could result in improved long-term durability of stentless kangaroo heart valves as bioprostheses. PMID:12808595

  6. Hydraulic characterization of diaphragm walls for cut and cover tunnelling

    Microsoft Academic Search

    Estanislao Pujades; Jesus Carrera; Enric Vázquez-Suñé; Anna Jurado; Victor Vilarrasa; Eduardo Mascuñano-Salvador

    Underground linear excavations often encounter problems when crossing aquifers. A viable option for shallow tunnels is the “cut and cover method”. Still, when enclosing diaphragm walls display open joints, even this method risks flooding, which affects construction operations, and soil dragging, which may lead to subsidence and affect nearby buildings outside the enclosure. Characterizing the state of the enclosure prior

  7. Lovelock gravity and Weyl's tube formula

    E-print Network

    Steven Willison

    2009-05-20

    In four space-time dimensions, there are good theoretical reasons for believing that General Relativity is the correct geometrical theory of gravity, at least at the classical level. If one admits the possibility of extra space-time dimensions, what would we expect classical gravity to be like? It is often stated that the most natural generalisation is Lovelock's theory, which shares many physical properties with GR. But there are also key differences and problems. A potentially serious problem is the breakdown of determinism, which can occur when the matrix of coefficients of second time derivatives of the metric degenerates. This can be avoided by imposing inequalities on the curvature. Here it is argued that such inequalities occur naturally if the Lovelock action is obtained from Weyl's formulae for the volume and surface area of a tube. Part of the purpose of this article is to give a treatment of the Weyl tube formula in terminology familiar to relativists and to give an appropriate (straightforward) generalisation to a tube embedded in Minkowski space.

  8. Lovelock gravity and Weyl's tube formula

    SciTech Connect

    Willison, Steven [Centro de Estudios Cientificos, Casilla 1469, Valdivia (Chile)

    2009-09-15

    In four space-time dimensions, there are good theoretical reasons for believing that general relativity is the correct geometrical theory of gravity, at least at the classical level. If one admits the possibility of extra space-time dimensions, what would we expect classical gravity to be like? It is often stated that the most natural generalization is Lovelock's theory, which shares many physical properties with general relativity. But there are also key differences and problems. A potentially serious problem is the breakdown of determinism, which can occur when the matrix of coefficients of second time derivatives of the metric degenerates. This can be avoided by imposing inequalities on the curvature. Here it is argued that such inequalities occur naturally if the Lovelock action is obtained from Weyl's formulas for the volume and surface area of a tube. Part of the purpose of this article is to give a treatment of the Weyl tube formula in terminology familiar to relativists and to give an appropriate (straightforward) generalization to a tube embedded in Minkowski space.

  9. GBT formulation to analyse the buckling behaviour of FRP composite open-section thin-walled columns

    Microsoft Academic Search

    N. M. F. Silva; N. Silvestre; D. Camotim

    2010-01-01

    This paper presents a Generalised Beam Theory (GBT) formulation to analyse the local and global buckling behaviour of FRP (fibre-reinforced polymer) composite thin-walled columns with arbitrary open cross-sections, which takes into account both shear deformation and cross-section deformation effects. After describing the steps and procedures involved in performing the GBT cross-section analysis of an arbitrarily branched composite (laminate plate) thin-walled

  10. Isoflavones in urine, saliva and blood of infants – data from a pilot study on the estrogenic activity of soy formula

    PubMed Central

    Cao, Yang; Calafat, Antonia M.; Doerge, Daniel R.; Umbach, David M.; Bernbaum, Judy C.; Twaddle, Nathan C.; Ye, Xiaoyun; Rogan, Walter J.

    2009-01-01

    In the United States, about 25% of infant formula sold is based on soy protein, which is an important source of estrogenic isoflavones in the human food supply. Nevertheless, few studies report isoflavones levels in infants. We did a partly cross-sectional, partly longitudinal pilot study to examine children’s exposure to isoflavones from different feeding methods. One hundred sixty-six full term infants between birth and 1 year of age were recruited into soy formula, cow milk formula or breast milk regimens according to their feeding histories. Three hundred eighty-one urine, 361 saliva and 88 blood samples were collected at 382 visits. We used automated online SPE coupled to HPLC-MS/MS for measuring three isoflavones (daidzein, genistein, and equol) in urine, and use similar LC/MS/MS techniques for saliva and blood spots . Concentrations of daidzein and genistein were undetectable in most blood or saliva samples from children fed breast milk or cow-milk formula. The proportion of non-detectable values was somewhat lower in urine than the other matrices. Concentrations of equol were detectable in only a few urine samples. For both daidzein and genistein, urine contained the highest median concentrations, followed by blood, and then saliva. Urinary concentrations of genistein and daidzein were about 500 times higher in the soy-formula-fed infants than in the cow-milk-formula-fed infants. The correlations between matrices for either analyte were strikingly lower than the correlation between the two analytes in any single matrix. We did not find significant correlations between isoflavone concentrations and the levels of certain hormones in children fed soy formula. Our results, based on much larger numbers of infants, strongly confirm previous reports, but whether the phytoestrogens in soy formula are biologically active in infants is still an open question. We plan further longitudinal studies focusing on physical and developmental findings reflecting the effects of estrogen exposure. PMID:18665197

  11. Empirical investigation of a field theory formula and Black's formula for the price of an interest-rate caplet

    NASA Astrophysics Data System (ADS)

    Baaquie, Belal E.; Liang, Cui

    2007-01-01

    The industry standard for pricing an interest-rate caplet is Black's formula. Another distinct price of the same caplet can be derived using a quantum field theory model of the forward interest rates. An empirical study is carried out to compare the two caplet pricing formulae. Historical volatility and correlation of forward interest rates are used to generate the field theory caplet price; another approach is to fit a parametric formula for the effective volatility using market caplet price. The study shows that the field theory model generates the price of a caplet and cap fairly accurately. Black's formula for a caplet is compared with field theory pricing formula. It is seen that the field theory formula for caplet price has many advantages over Black's formula.

  12. Ultrastructure and composition of the Nannochloropsis gaditana cell wall.

    PubMed

    Scholz, Matthew J; Weiss, Taylor L; Jinkerson, Robert E; Jing, Jia; Roth, Robyn; Goodenough, Ursula; Posewitz, Matthew C; Gerken, Henri G

    2014-11-01

    Marine algae of the genus Nannochloropsis are promising producers of biofuel precursors and nutraceuticals and are also harvested commercially for aquaculture feed. We have used quick-freeze, deep-etch electron microscopy, Fourier transform infrared spectroscopy, and carbohydrate analyses to characterize the architecture of the Nannochloropsis gaditana (strain CCMP 526) cell wall, whose recalcitrance presents a significant barrier to biocommodity extraction. The data indicate a bilayer structure consisting of a cellulosic inner wall (~75% of the mass balance) protected by an outer hydrophobic algaenan layer. Cellulase treatment of walls purified after cell lysis generates highly enriched algaenan preparations without using the harsh chemical treatments typically used in algaenan isolation and characterization. Nannochloropsis algaenan was determined to comprise long, straight-chain, saturated aliphatics with ether cross-links, which closely resembles the cutan of vascular plants. Chemical identification of >85% of the isolated cell wall mass is detailed, and genome analysis is used to identify candidate biosynthetic enzymes. PMID:25239976

  13. Ultrastructure and Composition of the Nannochloropsis gaditana Cell Wall

    PubMed Central

    Scholz, Matthew J.; Weiss, Taylor L.; Jinkerson, Robert E.; Jing, Jia; Roth, Robyn; Goodenough, Ursula; Posewitz, Matthew C.

    2014-01-01

    Marine algae of the genus Nannochloropsis are promising producers of biofuel precursors and nutraceuticals and are also harvested commercially for aquaculture feed. We have used quick-freeze, deep-etch electron microscopy, Fourier transform infrared spectroscopy, and carbohydrate analyses to characterize the architecture of the Nannochloropsis gaditana (strain CCMP 526) cell wall, whose recalcitrance presents a significant barrier to biocommodity extraction. The data indicate a bilayer structure consisting of a cellulosic inner wall (?75% of the mass balance) protected by an outer hydrophobic algaenan layer. Cellulase treatment of walls purified after cell lysis generates highly enriched algaenan preparations without using the harsh chemical treatments typically used in algaenan isolation and characterization. Nannochloropsis algaenan was determined to comprise long, straight-chain, saturated aliphatics with ether cross-links, which closely resembles the cutan of vascular plants. Chemical identification of >85% of the isolated cell wall mass is detailed, and genome analysis is used to identify candidate biosynthetic enzymes. PMID:25239976

  14. A constructive formula for function of matrix. Alternative to the Lagrange-Sylvester formula

    NASA Astrophysics Data System (ADS)

    Robuk, V. N.

    2004-11-01

    Instead of the elegant function (Lagrange-Sylvester formula) depending on badly-defined arguments (eigenvalues) we suggest a cumbersome function (hypergeometrical series) depending on well-defined arguments (matrix invariants). The function of matrix M^ implies the sum of any formal finite or infinite power series of M^ with arbitrary coefficients.

  15. ADAPTIVE WALL FUNCTIONS WITH APPLICATIONS

    E-print Network

    van der Weide, Edwin

    ADAPTIVE WALL FUNCTIONS WITH APPLICATIONS Gorazd Medic1 , Georgi Kalitzin1 , Gianluca Iaccarino1 wall function formulation for Spalart-Allmaras and k- model derived for the flow over a flat plate and ONERA M6 wing. The performance of the proposed adaptive wall functions is investigated in the presence

  16. Why a Wall? Pratheepan Gulasekaram*

    E-print Network

    Rose, Michael R.

    147 Why a Wall? Pratheepan Gulasekaram* Initiated with Operation Gatekeeper in the early 1990s of this critique, this Article theorizes the creation and persistence of a border wall, arguing that several presents alternative rationales for border wall construction based on incentives for national lawmakers

  17. Annual Report Pet er Wall

    E-print Network

    Handy, Todd C.

    Annual Report 1999-2000 Pet er Wall In stit ute for Adva nced St u dies #12;#12;A3 Annual Report 1999 ­ 2000 The Peter Wall Institute for Advanced Studies supports basic research through, interdisciplinary, innovative, and unique. #12;A4 Peter Wall Institute for Advanced Studies #12;1 Annual Report 1999

  18. Molded Concrete Center Mine Wall

    NASA Technical Reports Server (NTRS)

    Lewis, E. V.

    1987-01-01

    Proposed semiautomatic system forms concrete-foam wall along middle of coal-mine passage. Wall helps support roof and divides passage into two conduits needed for ventilation of coal face. Mobile mold and concrete-foam generator form sections of wall in place.

  19. An engineering study of hybrid adaptation of wind tunnel walls for three-dimensional testing

    NASA Technical Reports Server (NTRS)

    Brown, Clinton; Kalumuck, Kenneth; Waxman, David

    1987-01-01

    Solid wall tunnels having only upper and lower walls flexing are described. An algorithm for selecting the wall contours for both 2 and 3 dimensional wall flexure is presented and numerical experiments are used to validate its applicability to the general test case of 3 dimensional lifting aircraft models in rectangular cross section wind tunnels. The method requires an initial approximate representation of the model flow field at a given lift with wallls absent. The numerical methods utilized are derived by use of Green's source solutions obtained using the method of images; first order linearized flow theory is employed with Prandtl-Glauert compressibility transformations. Equations are derived for the flexed shape of a simple constant thickness plate wall under the influence of a finite number of jacks in an axial row along the plate centerline. The Green's source methods are developed to provide estimations of residual flow distortion (interferences) with measured wall pressures and wall flow inclinations as inputs.

  20. 24 CFR 1000.314 - What is formula current assisted stock?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false What is formula current assisted stock? 1000.314 Section...NATIVE AMERICAN HOUSING ACTIVITIES Allocation Formula § 1000.314 What is formula current assisted stock? Formula...

  1. 24 CFR 1000.314 - What is formula current assisted stock?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false What is formula current assisted stock? 1000.314 Section...NATIVE AMERICAN HOUSING ACTIVITIES Allocation Formula § 1000.314 What is formula current assisted stock? Formula...

  2. 24 CFR 1000.314 - What is formula current assisted stock?

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...2012-04-01 2012-04-01 false What is formula current assisted stock? 1000.314 Section 1000...Allocation Formula § 1000.314 What is formula current assisted stock? Formula current assisted stock is current assisted stock...

  3. 24 CFR 1000.314 - What is formula current assisted stock?

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...2014-04-01 2014-04-01 false What is formula current assisted stock? 1000.314 Section 1000...Allocation Formula § 1000.314 What is formula current assisted stock? Formula current assisted stock is current assisted stock...

  4. 24 CFR 1000.314 - What is formula current assisted stock?

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...2013-04-01 2013-04-01 false What is formula current assisted stock? 1000.314 Section 1000...Allocation Formula § 1000.314 What is formula current assisted stock? Formula current assisted stock is current assisted stock...

  5. Heat sensitivity of vertical water wall at low mass velocity in supercritical pressure W-shaped flame boiler

    Microsoft Academic Search

    Weishu Wang; Xiaojing Zhu; Qincheng Bi; Gang Wu; Jintao Huang

    The vertical water wall of the once-through boiler is sensitive to heat disturbance because of its smaller water volume compared with the drum boiler. This paper deduced formulas of the sensitivity coefficient of flow and output enthalpy, and made a heat sensitivity analysis for the vertical water wall of a 600 MW supercritical pressure W-shaped flame boiler at a low mass

  6. Left ventricular wall stress compendium.

    PubMed

    Zhong, L; Ghista, D N; Tan, R S

    2012-01-01

    Left ventricular (LV) wall stress has intrigued scientists and cardiologists since the time of Lame and Laplace in 1800s. The left ventricle is an intriguing organ structure, whose intrinsic design enables it to fill and contract. The development of wall stress is intriguing to cardiologists and biomedical engineers. The role of left ventricle wall stress in cardiac perfusion and pumping as well as in cardiac pathophysiology is a relatively unexplored phenomenon. But even for us to assess this role, we first need accurate determination of in vivo wall stress. However, at this point, 150 years after Lame estimated left ventricle wall stress using the elasticity theory, we are still in the exploratory stage of (i) developing left ventricle models that properly represent left ventricle anatomy and physiology and (ii) obtaining data on left ventricle dynamics. In this paper, we are responding to the need for a comprehensive survey of left ventricle wall stress models, their mechanics, stress computation and results. We have provided herein a compendium of major type of wall stress models: thin-wall models based on the Laplace law, thick-wall shell models, elasticity theory model, thick-wall large deformation models and finite element models. We have compared the mean stress values of these models as well as the variation of stress across the wall. All of the thin-wall and thick-wall shell models are based on idealised ellipsoidal and spherical geometries. However, the elasticity model's shape can vary through the cycle, to simulate the more ellipsoidal shape of the left ventricle in the systolic phase. The finite element models have more representative geometries, but are generally based on animal data, which limits their medical relevance. This paper can enable readers to obtain a comprehensive perspective of left ventricle wall stress models, of how to employ them to determine wall stresses, and be cognizant of the assumptions involved in the use of specific models. PMID:21547783

  7. Light shining through walls

    E-print Network

    Javier Redondo; Andreas Ringwald

    2010-11-16

    Shining light through walls? At first glance this sounds crazy. However, very feeble gravitational and electroweak effects allow for this exotic possibility. Unfortunately, with present and near future technologies the opportunity to observe light shining through walls via these effects is completely out of question. Nevertheless there are quite a number of experimental collaborations around the globe involved in this quest. Why are they doing it? Are there additional ways of sending photons through opaque matter? Indeed, various extensions of the standard model of particle physics predict the existence of new particles called WISPs - extremely weakly interacting slim particles. Photons can convert into these hypothetical particles, which have no problems to penetrate very dense materials, and these can reconvert into photons after their passage - as if light was effectively traversing walls. We review this exciting field of research, describing the most important WISPs, the present and future experiments, the indirect hints from astrophysics and cosmology pointing to the existence of WISPs, and finally outlining the consequences that the discovery of WISPs would have.

  8. Perturbative Semiclassical Trace Formulae for Harmonic Oscillators

    NASA Astrophysics Data System (ADS)

    Møller-Andersen, J.; Ögren, M.

    2015-06-01

    In this article we extend previous semiclassical studies by including more general perturbative potentials of the harmonic oscillator in arbitrary spatial dimensions. Our starting point is a radial harmonic potential with an arbitrary even monomial perturbation, which we use to study the resulting U(D) to O(D) symmetry breaking. We derive the gross structure of the semiclassical spectrum from periodic orbit theory, in the form of a perturbative (? ? 0) trace formula. We then show how to apply the results to even-order polynomial potentials, possibly including mean-field terms. We have drawn the conclusion that the gross structure of the quantum spectrum is determined from only classical circular and diameter orbits for this class of systems.

  9. Can the trace formula describe weak localisation?

    E-print Network

    Robert S. Whitney; Igor V. Lerner; Robert A. Smith

    1999-02-24

    We attempt to systematically derive perturbative quantum corrections to the Berry diagonal approximation of the two-level correlation function (TLCF) for chaotic systems. To this end, we develop a ``weak diagonal approximation'' based on a recent description of the first weak localisation correction to conductance in terms of the Gutzwiller trace formula. This semiclassical method is tested by using it to derive the weak localisation corrections to the TLCF for a semiclassically disordered system. Unfortunately the method is unable to correctly reproduce the ``Hikami boxes'' (the relatively small regions where classical paths are glued together by quantum processes). This results in the method failing to reproduce the well known weak localisation expansion. It so happens that for the first order correction it merely produces the wrong prefactor. However for the second order correction, it is unable to reproduce certain contributions, and leads to a result which is of a different form to the standard one.

  10. Fan noise reduction by single- and double-wall barriers

    NASA Astrophysics Data System (ADS)

    Lohmann, D.

    1980-06-01

    The performance of noise barriers used for shielding turbojet engines is investigated theoretically and experimentally in order to explain an amplification effect observed with a single-wall barrier and improve the currently employed barriers. It is shown that the solution of the Fresnel-Kirchhoff diffraction integral for a turbojet engine fan contains an additional term. Formulas including this term indicate that the fan noise is amplified, and not reduced, behind a barrier. The amplification effect occurs when the rim of the barrier is located in areas of maximum sound levels. It is also shown that double-wall barriers suppress the destructive diffraction effect due to absorption and double diffraction of the diffracted sound energy.

  11. The Peierls Stress of Dislocations: An Analytic Formula

    NASA Astrophysics Data System (ADS)

    Joós, B.; Duesbery, M. S.

    1997-01-01

    A simple and rigorous analytic formula is derived for the Peierls stress of a dislocation within the Peierls-Nabarro model. This is both a generalization and a correction of the previously known formula valid only for wide dislocations. Our formula is shown to have quantitative predictive capabilities, and to permit estimation of the Peierls stress directly from the generalized stacking fault energy surface, for both narrow and wide dislocations.

  12. NEW FORMULAS FOR DESIGN OF SOCKETS USED IN CABLE STRUCTURES

    Microsoft Academic Search

    Y. F. Luo; D. Y. He

    The empirical formulas are commonly employed for design of the sockets used in cable structures. By using these formulas,\\u000a accurate stress distribution in the socket may not be obtained. In response to the demand of the FAST project and the socket-manufacturer,\\u000a new theoretical design formulas are given in this paper and further revised on basis of the comparison of numerical

  13. An approximate formula for recalescence in binary eutectic alloys

    NASA Technical Reports Server (NTRS)

    Ohsaka, K.; Trinh, E. H.

    1993-01-01

    In alloys, solidification takes place along various paths which may be ascertained via phase diagrams; while there would be no single formula applicable to all alloys, an approximate formula for a specific solidification path would be useful in estimating the fraction of the solid formed during recalescence. A formulation is here presented of recalescence in binary eutectic alloys. This formula is applied to Ag-Cu alloys which are of interest in containerless solidification, due to their formation of supersaturated solutions.

  14. A derivative-free noncircular fan-beam reconstruction formula

    Microsoft Academic Search

    Ge Wang; Tein-hsiang Lin; Ping-chin Cheng

    1993-01-01

    In order to perform fan-beam reconstruction using projection data collected from a noncircular scanning locus, existing noncircular fan-beam formulas require a derivative of the scanning locus with respect to the rotation angle. A derivative-free noncircular fan-beam reconstruction formula that is based on a geometrical explanation of the circular equispatial fan-beam reconstruction formula is obtained here. A mathematical proof is then

  15. Integral formula for supersymmetric scattering amplitudes in three dimensions.

    PubMed

    Huang, Yu-tin; Lee, Sangmin

    2012-11-01

    We propose a new integral formula for all tree-level scattering amplitudes of N = 6 supersymmetric Chern-Simons theory. It resembles the Roiban-Spradlin-Volovich-Witten formula for N = 4 supersymmetric Yang-Mills theory based on a twistor string theory formulation. Our formula implies that the (2k)-point tree-level amplitude is closely related to degree (k-1) curves in CP(k-1). PMID:23215372

  16. Solid oxide fuel cell having compound cross flow gas patterns

    NASA Astrophysics Data System (ADS)

    Fraioli, A. V.

    1983-10-01

    A core construction for a fuel cell is disclosed having both parallel and cross flow passageways for the fuel and the oxidant gases. Each core passageway is defined by electrolyte and interconnect walls. Each electrolyte wall consists of cathode and anode materials sandwiching an electrolyte material. Each interconnect wall is formed as a sheet of inert support material having spaced small plugs of interconnect material, where cathode and anode materials are formed as layers on opposite sides of each sheet and are electrically connected together by the interconnect material plugs. Alternate tiers are arranged to have the passageways disposed normal to one another. Solid mechanical connection of the interconnect walls of adjacent tiers to the opposite sides of the common electrolyte wall is only at spaced contact areas, where the contact areas cross one another.

  17. Generic enteral formulas: a new idea for the 1990s.

    PubMed

    Bell, S J; Stack, J A; Forse, R A; DelFierro, C; Wade, E; Burke, P

    1995-12-01

    Generic equivalent enteral formulas are now commercially available. The purpose of this article is threefold: (1) to define generic equivalents and compare both their nutritional and monetary differences with brand name products, (2) to provide the clinician with factors to consider when evaluating generic formulas--the source and distribution of macronutrients and micronutrients, and patient tolerance, nutritional status and outcome--and (3) to provide information on how to incorporate generic enteral formulas onto an institution's enteral formulary. In today's environment of diminishing health care budgets, generic enteral formulas can play a role in cost containment without sacrificing quality nutritional care. PMID:8700055

  18. Holomorphicity and the Walczak formula on Sasakian manifolds

    NASA Astrophysics Data System (ADS)

    Brînz?nescu, Vasile; Slobodeanu, Radu

    2006-12-01

    The Walczak formula is a very nice tool for understanding the geometry of a Riemannian manifold equipped with two orthogonal complementary distributions. M. Svensson [Holomorphic foliations, harmonic morphisms and the Walczak formula, J. London Math. Soc. (2) 68 (3) (2003) 781-794] has shown that this formula simplifies to a Bochner-type formula when we are dealing with Kähler manifolds and holomorphic (integrable) distributions. We show in this paper that such results have a counterpart in Sasakian geometry. To this end, we build on a theory of (contact) holomorphicity on almost contact metric manifolds. Some other applications for (pseudo-)harmonic morphisms on Sasaki manifolds are outlined.

  19. Physicians, formula companies, and advertising. A historical perspective.

    PubMed

    Greer, F R; Apple, R D

    1991-03-01

    The recent advent of new advertising campaigns for infant formulas aimed at the general public via television commercials, newspapers, free formula coupons, and lay periodicals has disrupted a comfortable symbiotic relationship between infant food manufacturers and the medical profession that has endured for more than 50 years. In the late 19th century, physicians were concerned about the advertising claims of these products and generally felt that indications and directions for their use should be the province of the physician. Between 1929 and 1932, the American Medical Association, through its Committee on Foods and "Seal of Acceptance," essentially required the entire formula industry to advertise only to the medical profession. Since 1932, the US formula industry has developed into a $1.6 billion market. In 1988, Nestlé (absent from the US infant formula industry since the 1940s) acquired the Carnation Company and launched an advertising campaign to the general public for its formula products. Bristol Myers/Mead Johnson, in cooperation with Gerber Products Company, quickly followed suit. These actions threaten to once again remove the realm of infant feeding from the exclusive supervision of the medical profession. The new multimedia public advertising campaigns may increase the cost of infant formula to the general public and have a negative impact on the incidence of breast-feeding. In addition, formula advertising campaigns will likely increase the danger of advertising hyperbole and affect the level of financial support by formula companies for scientific meetings, medical research, education, and social events at medical meetings. PMID:1781817

  20. Solubilization of Covalently Bound Extensin from Capsicum Cell Walls

    PubMed Central

    Biggs, Karen J.; Fry, Stephen C.

    1990-01-01

    Acidified sodium chlorite cleaves isodityrosine and solubilizes covalently bound hydroxyproline-rich material from cell walls. This has been taken as evidence that isodityrosine acts as a cross-link holding the hydroxyproline-rich glycoprotein extensin in the cell wall. However, acidified chlorite was found to cleave peptide bonds in salt-soluble extensin and in bovine serum albumin (BSA). This invalidates the use of conventional acidified chlorite treatment to provide evidence for isodityrosine cross-links. The ratio of BSA:chlorite was important in determining peptidyl cleavage. At a ratio of 0.75:1.00 (mole amino acid residues/mole chlorite), or higher, peptidyl cleavage was not detected. Furthermore, in samples where a low concentration of radioactive extensin was present, BSA substantially protected the peptide bonds of the extensin against peptidyl cleavage during treatment with acidified chlorite, while not preventing the cleavage of isodityrosine. Therefore, acidified sodium chlorite plus BSA was a more specific reagent for the cleavage of isodityrosine than was acidified chlorite alone. This modified treatment solubilized in intact form the `covalently bound' extensin from cell walls of Capsicum frutescens (chili pepper) suspension cultures, providing new evidence compatible with the view that extensin molecules are held in the cell wall by isodityrosine cross-links. PMID:16667247

  1. Variability of cell wall polysaccharides composition and hemicellulose enzymatic profile in an apple progeny.

    PubMed

    Galvez-Lopez, D; Laurens, F; Quéméner, B; Lahaye, M

    2011-12-01

    The genetic variability of apple cell walls polysaccharides chemical composition and structure was assessed in a progeny of 141 individuals harvested over 2 years. The variability of the hemicelluloses oligosaccharides released by glucanase was analyzed by MALDI-TOF MS. The genetic contribution was distinguished from harvest year as well as from parental crossing patterns and scab resistance selection. Results showed that harvest year had a major impact on cell wall polysaccharide composition and structure. Within each harvest, genetic effect impact more significantly cell wall polysaccharide chemistry than does reciprocal crossing or early scab selection. Uronic acids, glucose, galactose and xylose contents as well as some glucomannan and xyloglucan structures have a high heritability. This first cell wall chemotyping of an apple progeny opens the way for future searches of genetic markers for the chemical variability of cell wall polysaccharides. PMID:21939685

  2. Near-wall coherent structures in the turbulent channel flow of a dilute polymer solution

    NASA Astrophysics Data System (ADS)

    Sibilla, Stefano; Beretta, Carlo Pietro

    2005-09-01

    Near-wall turbulent coherent structures, obtained by applying Jeong and Hussain's vortex identification criterion to DNS flow fields of a dilute polymer channel flow, are compared with those observed in a Newtonian flow at the same Reynolds number. The mean vortex in the polymer flow is weaker, less tilted and inclined, while its length and radius are higher. Cross-flow velocity fluctuations near the wall drop consistently. The vortical structures orient and stretch the polymer chains near the wall, producing high additional stresses in the flow. The consistent result is a new pressure and stress distribution which acts in opposition to the redistribution of kinetic energy from the streamwise to the cross-flow direction. Although the basic features of near-wall turbulence are maintained, the whole turbulence cycle reaches an equilibrium state where Reynolds stresses and wall friction are lower.

  3. Wall Scaling and Wall Models for Complex Turbulent Flows

    Microsoft Academic Search

    Michael Manhart; Nikolaus Peller; Margareta Petrovan Boiarciuc; Christophe Brun

    The near wall behaviour of complex turbulent flows is investigated by dimensional considerations and a priori investigations.\\u000a We consider separated incompressible and compressible flows. In incompressible turbulent flows, it is found that the flow\\u000a in the immediate vicinity of the wall is dependent on two parameters, based on wall friction and local pressure gradient,\\u000a respectively. In compressible turbulent flows, a

  4. whitneyavenue wall street

    E-print Network

    Hall Yale Center for British Art hewitt quad cross campus Trumbull Sterling Library Yale Law School Memorial Library 14 The Garden (Pyramid, Sun, and Cube), 1963 Isamu Noguchi (1904­1988) Hewitt University­1929) Yale Alumni War Memorial, 1926­27 Thomas Hastings and Everett V. Meeks (1879­1954) Hewitt University

  5. Domain Walls and Flux Tubes

    E-print Network

    Stefano Bolognesi

    2005-07-27

    We present a new vortex solution made of a domain wall compactified into a cylinder and stabilized by the magnetic flux within. When the thickness of the wall is much less than the radius of the vortex some precise results can be obtained, such as the tension spectrum and profile functions. This vortex can naturally end on the wall that has created it, making the simplest junction between a wall and a vortex. We then classify every kind of junction between a flux tube and domain wall. The criteria for classification are as follows: a flux can or can not end on the wall, and when it ends, the flux must go somewhere. Various examples are discussed, including abelian and non-ablelian theories, as well as supersymmetric and non-supersymmetric theories.

  6. Asymptotic Dynamics of Monopole Walls

    E-print Network

    R. Cross

    2015-06-25

    We determine the asymptotic dynamics of the U(N) doubly periodic BPS monopole in Yang-Mills-Higgs theory, called a monopole wall, by exploring its Higgs curve using the Newton polytope and amoeba. In particular, we show that the monopole wall splits into subwalls when any of its moduli become large. The long-distance gauge and Higgs field interactions of these subwalls are abelian, allowing us to derive an asymptotic metric for the monopole wall moduli space.

  7. Asymptotic Dynamics of Monopole Walls

    E-print Network

    Cross, R

    2015-01-01

    We determine the asymptotic dynamics of the U(N) doubly periodic BPS monopole in Yang-Mills-Higgs theory, called a monopole wall, by exploring its Higgs curve using the Newton polytope and amoeba. In particular, we show that the monopole wall splits into subwalls when any of its moduli become large. The long-distance gauge and Higgs field interactions of these subwalls are abelian, allowing us to derive an asymptotic metric for the monopole wall moduli space.

  8. The road to the vertebral formula.

    PubMed

    Mallo, Moisés; Vinagre, Tânia; Carapuço, Marta

    2009-01-01

    In vertebrates, the paraxial mesoderm differentiates into several structures, including the axial skeleton. The genetic mechanisms that control positional information in the paraxial mesoderm along the anterior-posterior axis are responsible for the development of a skeleton with the appropriate vertebral formula, i.e. a specific number of cervical, thoracic, lumbar, sacral and caudal vertebrae. These control mechanisms are complex and involve molecules of different kinds, including transcription factors, like those encoded by the Hox genes, and signalling molecules, like those involved in Gdf11, FGF, retinoic acid or WNT signalling. Recent experiments indicate that most of the positional information for the paraxial mesoderm is encoded during the initial steps of its development in the presomitic mesoderm, although it is only decoded later during differentiation of the somites. The genesis of positional identity may be linked to the process of somitogenesis, which also occurs in the presomitic mesoderm as a result of complex interactions involving oscillatory activity of components of the Notch and WNT signalling pathways and antagonistic gradients of FGF/WNT and retinoic acid. The possible connections between Hox genes and all these signalling processes to generate a properly patterned axial skeleton are discussed in this review. PMID:19247958

  9. Development of super-hot-wall electrodes. [(La,Sr)FeO/sub 3/-SrZrO/sub 3/

    SciTech Connect

    Pober, R.L.; Cannon, W.R.; Bowen, H.K.; Louis, J.F.

    1980-01-01

    Quantitative formulae have been developed for determining the electrochemical stresses imposed on a slag covered electrode subjected to a modest current density. These formulae predict an approximately exponential decrease/increase in effective oxygen partial pressure with current density, thickness and conductivity of the cathode/anode slag. Based on these analyses and on tests performed in the MHD Simulation Facility at MIT, a super-hot-walled electrode, which operates at a surface temperature above that where stable slag layers form, is proposed. For super-hot-walled electrodes, the same formulae are applied to the electrode design to avoid high electrochemical stresses. Studies in the laboratory indicated that materials based on strontium zirconate-lanthanum strontium ferrite systems would perform well as MHD electrodes. Tests in the MHD Simulation Facility show clean-fired durability of those electrodes to be very good. The degradation rate is shown to be conductivity and time dependent. 19 figures.

  10. Molybdenum content of Canadian and US infant formulas.

    PubMed

    Abramovich, Milana; Miller, Angela; Yang, Haifeng; Friel, James K

    2011-11-01

    Molybdenum is an essential trace nutrient in the human diet. Our purpose was to provide a comprehensive analysis of Mo content of various types of powdered infant formulas across Canada and the USA. All infant formulas, available on the day of sampling, were purchased from random supermarkets in Grand Forks, ND, USA; San Diego, CA, USA; Washington, DC, USA; and Winnipeg, MB, Canada. Reference powdered milk, human milk (HM), and formula samples were weighed and acid-digested prior to analysis by graphite furnace atomic absorption spectroscopy. Mo content in all formulas ranged from 15.4 to 80.3 ?g/L (mean±SE, 37.7±1.7 ?g/L). HM Mo concentration ranged from 1.5 to 9.5 ?g/L (5.09±0.81 ?g/L). Formulas intended for full-term or for premature infants feeding contained, on average, more Mo than HM. Formulas intended for infants with special needs contained similar mean Mo levels to HM. No significant differences were detected between mean Mo values of formulas of a same type purchased from different brands and/or at different locations. High Mo intake may pose health risks, despite lower bioavailability of Mo from formula compared with HM. PMID:21279467

  11. Cardy–Verlinde formula and holographic dark energy

    Microsoft Academic Search

    Ke Ke; Miao Li

    2005-01-01

    If we separate energy in a holographic theory into an extensive part and an intrinsic part, where the extensive part is given by the cosmological constant, and assume entropy be given by the Gibbons–Hawking formula, the Cardy–Verlinde formula then implies an intrinsic part which agrees with a term recently proposed by Hsu and Zee. Moreover, the cosmological constant so derived

  12. [New infant formula based on soy milk and corn flour].

    PubMed

    Mutahada, E; Leader, D; Faber, J; Freier, S

    1996-03-15

    In recent years the use of infant feeding formulas based on soy bean has been increasing. We report a trial of a new, soy bean-based formula to which starch was added. A control group was given a cow milk-based formula widely used in this country ("Materna" with cornflour, Ma'abaroth Products Ltd.). Healthy infants, between 3-6 months of age and of normal length and weight were enrolled at random at Infant Welfare Centers in Jerusalem. 25 received the soy formula, and 21 the cow milk-based formula. During the 2-month trial the infants did not receive any other foods. They were examined by the senior author every 2 weeks and weight, length and head circumference were measured at their Infant Welfare Clinic visits. The mothers filled questionnaires concerning the amount of formula ingested, the nature and number of stools, and complaints, such as crying. Both groups gained weight at the normal rate during the trial. In each group, the mothers were satisfied with the product and wanted to continue with it after the trial. We conclude that a soy-based formula containing starch is comparable to a cow milk formula containing star. PMID:8707193

  13. Emittance formula for slits and pepper-pot measurement

    SciTech Connect

    Zhang, M. [Fermi National Accelerator Lab., Batavia, IL (United States)][Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)

    1996-10-01

    In this note, a rigid formula for slits and pepper-pot emittance measurement is derived. The derivation is based on the one- dimensional slit measurement setup. A mathematical generalization of the slit emittance formula to the pepper-pot measurement is discussed.

  14. Cubature Formulas, Geometrical Designs, Reproducing Kernels, and Markov Operators

    Microsoft Academic Search

    Pierre De La Harpe; Claude Pache

    2005-01-01

    Cubature formulas and geometrical designs are described in terms of reproducing kernels for Hilbert spaces of functions on the one hand, and Markov operators associated to orthogonal group representations on the other hand. In this way, several known results for spheres in Euclidean spaces, involving cubature formulas for polynomial functions and spherical designs, are shown to generalize to large classes

  15. BORROMEAN SURGERY FORMULA FOR THE CASSON JEAN-BAPTISTE MEILHAN

    E-print Network

    BORROMEAN SURGERY FORMULA FOR THE CASSON INVARIANT JEAN-BAPTISTE MEILHAN Abstract. Every oriented integral homology 3-sphere is obtained from S3 by some Borromean surgery (or clasper surgery) moves. We by such a surgery presentation. The formula involves simple classical invariants, namely the framing, linking number

  16. BORROMEAN SURGERY FORMULA FOR THE CASSON JEANBAPTISTE MEILHAN

    E-print Network

    BORROMEAN SURGERY FORMULA FOR THE CASSON INVARIANT JEAN­BAPTISTE MEILHAN Abstract. Every oriented integral homology 3­sphere is obtained from S 3 by some Borromean surgery (or clasper surgery) moves. We by such a surgery presentation. The formula involves simple classical invariants, namely the framing, linking number

  17. A transform involving Chebyshev polynomials and its inversion formula

    NASA Astrophysics Data System (ADS)

    Ciaurri, Oscar; Navas, Luis M.; Varona, Juan L.

    2006-11-01

    We define a functional analytic transform involving the Chebyshev polynomials Tn(x), with an inversion formula in which the Mobius function [mu](n) appears. If with Re(s)>1, then given a bounded function from [-1,1] into , or from into itself, the following inversion formula holds: if and only if Some other similar results are given.

  18. Computing the Constant Elasticity of Variance Option Pricing Formula

    Microsoft Academic Search

    Mark Douglas Schroder

    1989-01-01

    This paper expresses the constant elasticity of variance option pricing formula in terms of the noncentral chi-square distribution. This allows the application of well-known approximation formulas and the derivation of a whole class of closed-form solutions. In addition, a simple and efficient algorithm for computing this distribution is presented. Copyright 1989 by American Finance Association.

  19. FIBONACCI'S SEQUENCE OBTAINED BY A GENERAL RECURSIVE FORMULA

    E-print Network

    : Fibonacci`s secuence. Recursive formula. Di¤erence Equations INTRODUCTION: The Fibonacci's numbers though all the Fibonacci's number are integers. Now in this short paper we are going to derive among other things a general formula for the Fibonacci's numbers which is done from a combinatorial point

  20. SU4 in nuclear structure. [Mass formula, liquid drop terms

    Microsoft Academic Search

    Danos

    1978-01-01

    The presence of quartets - the more physical term for SU4 structures - is demonstrated for nuclei throughout the table. A very strong indication for quartets is the validity of a mass formula based on SU4. This formula achieves with fewer parameters the classical liquid drop terms then turns out to have at least as good a fit to the

  1. State Funding Formulas for Public Four-Year Institutions.

    ERIC Educational Resources Information Center

    McKeown, Mary P.

    This article reviews the development of state funding formulas or guidelines for public higher education. Originally viewed as a means to distribute public funds in a rational and equitable manner, they now are complicated methodologies. Funding formulas are all-inclusive or itemized; most states use the itemized approach. There are three…

  2. Evidence for a Satisfiability Threshold for Random 3CNF Formulas

    Microsoft Academic Search

    Tracy Larrabee; Yumi Tsuji

    1993-01-01

    This paper presents empirical evidence of a satisfiability threshold in random3CNF formulas. The paper also expands on and supports the conjecture of Mitchell,Selman, and Levesque [13] that hard randomly generated CNF formulas will be hardfor any reasonable satisfiability algorithm. We report statistics for a much largerset of variables than have been previously reported; in particular, we show that foreach clause

  3. Simple formula for multiple mu-metal shields

    NASA Astrophysics Data System (ADS)

    Dubbers, D.

    1986-03-01

    A simple approximate formula is derived for the calculation of multiple concentric magnetic shields, which is accurate on the one percent level for all relevant cases, and which replaces the cumbersome recursion procedures used so far. The new formula allows the parametrization of the problem such that the optimum shield configuration is readily obtained for all applications.

  4. Some exact formulas for threshold neuron models: correlations and synchrony

    E-print Network

    Paris-Sud XI, Université de

    Some exact formulas for threshold neuron models: correlations and synchrony Elena Di Bernardino1 , Jos´e R. Le´on2 Abstract In this paper we study some threshold neuron models with focus on specific in neuroscience research. Our aim is in particular to provide exact formulas for these threshold neuron models

  5. How Effective is Redistribution Under the Social Security Benefit Formula?

    Microsoft Academic Search

    Alan L. Gustman; Thomas L. Steinmeier

    2000-01-01

    This paper uses earnings histories obtained from the Social Security Administration and linked to the survey responses for participants in the Health and Retirement Study to investigate redistribution under the current social security benefit formula. We find that as advertised, at the level of the individual respondent, the benefit formula is progressive. When individuals are arrayed by indexed lifetime earnings,

  6. 27 CFR 24.303 - Formula wine record.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...2010-04-01 2010-04-01 false Formula wine record. 24.303 Section 24.303 Alcohol...BUREAU, DEPARTMENT OF THE TREASURY LIQUORS WINE Records and Reports § 24.303 Formula wine record. A proprietor who produces...

  7. A GELFANDBEURLING TYPE FORMULA FOR HEIGHTS ON ENDOMORPHISM RINGS

    E-print Network

    A GELFAND­BEURLING TYPE FORMULA FOR HEIGHTS ON ENDOMORPHISM RINGS Valerio Talamanca Universiteit. In this paper we prove a limit formula for heights on the endomorphism ring of V , which can be considered's averaging procedure for constructing canon­ ical heights on Abelian Varieties. We also prove a version

  8. 27 CFR 26.50 - Formulas for liquors.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...Rico. If a formula is submitted to cover only the production of spirits which are to be transferred to the bonded premises of a DSP under 26 U.S.C. 5232, the formula shall include a statement to that effect. If any product contains liquors made...

  9. 27 CFR 26.50 - Formulas for liquors.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...Rico. If a formula is submitted to cover only the production of spirits which are to be transferred to the bonded premises of a DSP under 26 U.S.C. 5232, the formula shall include a statement to that effect. If any product contains liquors made...

  10. 27 CFR 26.50 - Formulas for liquors.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...Rico. If a formula is submitted to cover only the production of spirits which are to be transferred to the bonded premises of a DSP under 26 U.S.C. 5232, the formula shall include a statement to that effect. If any product contains liquors made...

  11. 27 CFR 26.50 - Formulas for liquors.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...Rico. If a formula is submitted to cover only the production of spirits which are to be transferred to the bonded premises of a DSP under 26 U.S.C. 5232, the formula shall include a statement to that effect. If any product contains liquors made...

  12. 27 CFR 26.50 - Formulas for liquors.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...Rico. If a formula is submitted to cover only the production of spirits which are to be transferred to the bonded premises of a DSP under 26 U.S.C. 5232, the formula shall include a statement to that effect. If any product contains liquors made...

  13. Convergence of the Cotangent Formula: An Overview Max Wardetzky

    E-print Network

    Wardetzky, Max

    Convergence of the Cotangent Formula: An Overview Max Wardetzky Abstract. The cotangent formula element sense. This note gives an overview of approximation and convergence properties of discrete in euclidean 3­space. In particular, we show that mean curvature vectors converge in the sense of distributions

  14. Convergence of the cotan Formula -an Overview Max Wardetzky

    E-print Network

    Andrzejak, Artur

    Convergence of the cotan Formula - an Overview Max Wardetzky Abstract. The cotan formula. In this note we give an overview over its convergence properties. The mean curvature vector, given viewed as a functional converges, whereas the corresponding piecewise linear functions do in general fail

  15. Delay and Noise Formulas for Capacitively Coupled Distributed RC Lines

    Microsoft Academic Search

    Hiroshi Kawaguchi; Takayasu Sakurai

    1998-01-01

    Simple yet useful analytical formulas for delay, slope and crosstalk noise amplitude for capacitively coupled two-, three- and infinite-line systems are derived assuming bus lines and other signal lines in deep-submicron VLSI's. The calculated results using the derived formulas are extensively compared with SPICE simulation results to demonstrate the validity of the analytical expressions. Two modes have been studied; the

  16. The Processing of Formulaic Sequences by Second Language Speakers

    ERIC Educational Resources Information Center

    Jiang, Nan; Nekrasova, Tatiana M.

    2007-01-01

    A number of researchers have suggested that formulaic sequences are stored and processed holistically (Altenberg, 1998; Raupach, 1984; Schmitt & Carter, 2004; Spottl & McCarthy, 2004). However, the evidence for this hypothesis has not been conclusive. The present study examined the representation and processing of formulaic sequences in two online…

  17. A More Intuitive Version of the Lorentz Velocity Addition Formula

    ERIC Educational Resources Information Center

    Devlin, John F.

    2009-01-01

    The Lorentz velocity addition formula for one-dimensional motion presents a number of problems for beginning students of special relativity. In this paper we suggest a simple rewrite of the formula that is easier for students to memorize and manipulate, and furthermore is more intuitive in understanding the correction necessary when adding…

  18. A collection of mathematical formulas involving D.H. Bailey

    E-print Network

    Bailey, David H.

    infinite series or definite integral, as opposed to iterative algorithms or other multiple-formula schemes, Division of Mathematical, Information, and Computational Sciences of the U.S. Department of Energy, under by them to compute to over one billion decimal digits [8, pg. 108]. · Formula 7 is known as the "BBP

  19. Geometrical Simplification of the Dipole-Dipole Interaction Formula

    ERIC Educational Resources Information Center

    Kocbach, Ladislav; Lubbad, Suhail

    2010-01-01

    Many students meet dipole-dipole potential energy quite early on when they are taught electrostatics or magnetostatics and it is also a very popular formula, featured in encyclopedias. We show that by a simple rewriting of the formula it becomes apparent that, for example, by reorienting the two dipoles, their attraction can become exactly twice…

  20. Formulas for the Connes-Moscovici Hopf algebra Frederic Menous

    E-print Network

    Paris-Sud XI, Université de

    Formulas for the Connes-Moscovici Hopf algebra Fr´ed´eric Menous Abstract We give explicit formulas for the coproduct and the antipode in the Connes-Moscovici Hopf algebra HCM. To do so, we first restrict ourselves to a sub-Hopf algebra H1 CM containing the nontrivial elements, namely those for which the coproduct