All Outputs (37675)

Calculated ionization potentials of the linear alkanes (1970)
Journal Article

The equivalent orbital (EO) method is investigated and used for predicting outer and inner ionization potentials of the linear alkanes. The calculated ionization potentials are in good agreement with those observed in photoelectron spectra provided t... Read More about Calculated ionization potentials of the linear alkanes.

Experimental investigation of the use of sharp edges for the production of positive ions in field-ionization mass spectrometry (1968)
Journal Article

Various commercial razor blades have been tested for field ionization performance and compared with edges prepared electrochemically from platinum and tungsten foils. The results are correlated with data obtained from electron micrographs of the vari... Read More about Experimental investigation of the use of sharp edges for the production of positive ions in field-ionization mass spectrometry.

Calculation of electric field strengths at a sharp edge (1968)
Journal Article

Sharp edges were first used for field ionisation mass spectrometry by Beckey. Although Cross and Robertson found that etched metal foils were more effective than razor blades for field ionisation, blades are very convenient for determination of field... Read More about Calculation of electric field strengths at a sharp edge.

Against spyware using CAPTCHA in graphical password scheme
Journal Article

Text-based password schemes have inherent security and usability problems, leading to the development of graphical password schemes. However, most of these alternate schemes are vulnerable to spyware attacks. We propose a new scheme, using CAPTCHA (... Read More about Against spyware using CAPTCHA in graphical password scheme.

Two-timescale learning using idiotypic behaviour mediation for a navigating mobile robot
Journal Article

A combined short-term learning (STL) and long-term learning (LTL) approach to solving mobile-robot navigation problems is presented and tested in both the real and virtual domains. The LTL phase consists of rapid simulations that use a genetic algo... Read More about Two-timescale learning using idiotypic behaviour mediation for a navigating mobile robot.

Automorphic forms of higher order
Journal Article

In this paper a theory of Hecke operators for higher-order modular forms is established. The definition of higher-order forms is extended beyond the realm of parabolic invariants. A canonical inner product is introduced. The role of representation th... Read More about Automorphic forms of higher order.

Classification accuracy comparison: hypothesis tests and the use of confidence intervals in evaluations of difference, equivalence and non-inferiority
Journal Article

The comparison of classification accuracy statements has generally been based upon tests of difference or inequality when other scenarios and approaches may be more appropriate. Procedures for evaluating two scenarios with interest focused on the sim... Read More about Classification accuracy comparison: hypothesis tests and the use of confidence intervals in evaluations of difference, equivalence and non-inferiority.

On the suboptimality of the p-version interior penalty discontinuous Galerkin method
Journal Article

We address the question of the rates of convergence of the p-version interior penalty discontinuous Galerkin method (p-IPDG) for second order elliptic problems with non-homogeneous Dirichlet boundary conditions. It is known that the p-IPDG method adm... Read More about On the suboptimality of the p-version interior penalty discontinuous Galerkin method.

A review of diatom ?18O in palaeoceanography
Journal Article

Measurements of diatom oxygen isotopes (?18Odiatom) hold the potential to provide an important additional source of palaeoceanographic information in regions depleted in carbonates. However, despite analyses of ?18Odiatom being carried out since the... Read More about A review of diatom ?18O in palaeoceanography.

Franco-British relations and the question of conscription in Britain, 1938-1939
Journal Article

This article examines the relationship interaction between the French campaign for the introduction of British conscription during 1938-39 and the ebbs and flows of British public opinion on the same issue. In particular, it will demonstrate how Fren... Read More about Franco-British relations and the question of conscription in Britain, 1938-1939.

Discrimination and identification of azimuth using spectral shape
Journal Article

Monaural measurements of minimum audible angle (MAA) (discrimination between two locations) and absolute identification (AI) of azimuthal locations in the frontal horizontal plane are reported. All experiments used roving-level fixed-spectral-shape s... Read More about Discrimination and identification of azimuth using spectral shape.

Unfinished Turns in French: How Context Matters
Journal Article

On occasions, speakers do not complete their turns in conversation. Such syntactically-incomplete turns are not treated with repair or misunderstanding. The responses that they receive display a clear understanding of the actions that the unfinished... Read More about Unfinished Turns in French: How Context Matters.

Adaptive discontinuous Galerkin methods for eigenvalue problems arising in incompressible fluid flows
Journal Article

In this article we consider the a posteriori error estimation and adaptive mesh refinement of discontinuous Galerkin finite element approximations of the hydrodynamic stability problem associated with the incompressible Navier-Stokes equations. Parti... Read More about Adaptive discontinuous Galerkin methods for eigenvalue problems arising in incompressible fluid flows.

An A Posteriori Error Indicator for Discontinuous Galerkin Approximations of Fourth Order Elliptic Problems
Journal Article

We introduce a residual-based a posteriori error indicator for discontinuous Galerkin discretizations of the biharmonic equation with essential boundary conditions. We show that the indicator is both reliable and efficient with respect to the approxi... Read More about An A Posteriori Error Indicator for Discontinuous Galerkin Approximations of Fourth Order Elliptic Problems.

The DCA:SOMe comparison: a comparative study between two biologically-inspired algorithms
Journal Article

The dendritic cell algorithm (DCA) is an immune-inspired algorithm, developed for the purpose of anomaly detection. The algorithm performs multi-sensor data fusion and correlation which results in a ‘context aware’ detection system. Previous applicat... Read More about The DCA:SOMe comparison: a comparative study between two biologically-inspired algorithms.

A Mixed Discontinuous Galerkin Method for Incompressible Magnetohydrodynamics
Journal Article

We introduce and analyze a discontinuous Galerkin method for the numerical discretization of a stationary incompressible magnetohydrodynamics model problem. The fluid unknowns are discretized with inf-sup stable discontinuous P^3_{k}-P_{k-1} elements... Read More about A Mixed Discontinuous Galerkin Method for Incompressible Magnetohydrodynamics.

Spontaneous evaluations: similarities and differences between the affect heuristic and implicit attitudes
Journal Article

The affect heuristic and implicit attitudes are two separate concepts that have arisen within different literatures but that have a number of similarities. This paper compares these two constructs with the aim of clarifying exactly what they are and... Read More about Spontaneous evaluations: similarities and differences between the affect heuristic and implicit attitudes.

Two-Level Schwarz Preconditioners for Super Penalty Discontinuous Galerkin Methods
Journal Article

We extend the construction and analysis of the non-overlapping Schwarz preconditioners proposed in Antonietti et al. [Math. Model. Numer. Anal., 41(1):21-54, 2007] and [Math. Model. Numer. Anal., submitted, 2006] to the (non-consistent) super penalty... Read More about Two-Level Schwarz Preconditioners for Super Penalty Discontinuous Galerkin Methods.

Social support in cyberspace: A content analysis of communication within a Huntington’s Disease online support group
Journal Article

Objective: Huntington’s Disease (HD) is an inherited disorder, characterised by a progressive degeneration of the brain. Due to the nature of the symptoms, the genetic element of the disease and the fact that there is no cure, HD patients and those... Read More about Social support in cyberspace: A content analysis of communication within a Huntington’s Disease online support group.

Character, Audience Agency and Trans-Media Drama
Journal Article

Changes in the television industry with regards to the development of new media technologies are having a significant impact on audience engagement with television drama. This article explores how the internet is being used to extend audience engagem... Read More about Character, Audience Agency and Trans-Media Drama.