Brian Flannery

Resources for the Future

Establishing a credible and effective transparency regime to support the Paris Agreement – broader than its formal ‘transparency framework’ – will be both crucial and challenging. The Agreement provides for review of achievements under national pledges (Nationally Determined Contributions, or NDCs), but much of this information will become availabl...

Today, with little time remaining before the 21st meeting of the Conference of Parties to the UNFCCC in Paris, negotiators confront a disorganised text that is far too long and replete with conflicting proposals that cross red lines for major players. Nonetheless, political leaders express confidence that a deal is achievable. Unlike the task of Ky...

Assessments of emissions mitigation patterns have largely ignored the huge variation in real-world factors - in particular, institutions - that affect where, how and at what costs firms deploy capital. We investigate one such factor - how national institutions affect investment risks and thus the cost of financing. We use an integrated assessment m...

The most important energy development of the past decade has been the wide deployment of hydraulic fracturing technologies that enable the production of previously uneconomic shale gas resources in North America. If these advanced gas production technologies were to be deployed globally, the energy market could see a large influx of economically co...

This comment will address CCS from the perspective of potential suppliers, operators, and clients in large-scale systems. CCS today lacks both an economically viable policy framework and a business model. Although little has changed regarding the available technology, and the potential for CCS to mitigate emissions since publication of the comprehe...

Co-authored by four leading scientists from academia and industry, Numerical Recipes Third Edition starts with basic mathematics and computer science and proceeds to complete, working routines. Widely recognized as the most comprehensive, accessible and practical basis for scientific computing, this new edition incorporates more than 400 Numerical...

The two Numerical Recipes books are marvellous. The principal book, The Art of Scientific Computing, contains program listings for almost every conceivable requirement, and it also contains a well written discussion of the algorithms and the numerical methods involved. The Example Book provides a complete driving program, with helpful notes, for ne...

Projections indicate that future energy use and associated CO2 emissions will grow substantially to fuel economic growth and prosperity. Consequently, restrictions on energy demand would have significant economic and social impacts--- especially in developing countries where efforts to alleviate poverty and meet essential needs, as well as aspirati...

this paper was published with a more noise robust sphering method in [ZM98, MPZ99]. As this algorithm is closely related to the one developed in this work, it became important to benchmark different variants of spatial decorrelation algorithms on different data sets, concerning their noise robustness. Blind Source Separation was introduced in [HJ86...

The Exxon microtomography facility at the National Synchrotron Light Source (NSLS) located at Brookhaven National Laboratory has constantly evolved since its first operation in 1986. This evolution has been driven by improvement in imaging technology and by research applications particularly the study of fluids in man-made structures and random por...

The Exxon microtomography facility at the National Synchrotron Light Source (NSLS) located at Brookhaven National Laboratory has constantly evolved since its first operation in 1986. This evolution has been driven by improvement in imaging technology and by research applications particularly the study of fluids in man-made structures and random por...

Do you want easy access to the latest methods in scientific computing? This greatly expanded third edition of Numerical Recipes has it, with wider coverage than ever before, many new, expanded and updated sections, and two completely new chapters. The executable C++ code, now printed in color for easy reading, adopts an object-oriented style partic...

Instrumentation for beam line X2 at the National Synchrotron Light Source is described. The beam line is configured as a dedicated experimental station whose design has been optimized for carrying out both microtomography and microradiography. The facility has proven to be a reliable three‐dimensional microscope for imaging the interior structure o...

The product of a unique collaboration among four leading scientists in academic research and industry, Numerical Recipes is a complete text and reference book on scientific computing. In a self-contained manner it proceeds from mathematical and theoretical considerations to actual practical computer routines. With over 100 new routines bringing the...

From the Publisher: This is the revised and greatly expanded Second Edition of the hugely popular Numerical Recipes: The Art of Scientific Computing. The product of a unique collaboration among four leading scientists in academic research and industry, Numerical Recipes is a complete text and reference book on scientific computing. In a self-contai...

We have developed several x-ray microtomography systems which function as quantitative three dimensional x-ray microscopes. In this paper we describe the evolutionary path followed from making the first high resolution experimental microscopes to later generations which can be routinely used for investigating materials. Developing the instrumentati...

We review results obtained with the Exxon Microtomography apparatus. The technique is based on tomographic methods widely used in medicine and nondestructive evaluation. When used with a tunable x‐ray source, it is a powerful diagnostic and research tool for a wide variety of materials problems. It is capable of producing maps of the interior struc...

The product of a unique collaboration among four leading scientists in academic research and industry, Numerical Recipes is a complete text and reference book on scientific computing. In a self-contained manner it proceeds from mathematical and theoretical considerations to actual practical computer routines. With over 100 new routines bringing the...

http://cfatab.harvard.edu/nr/

We describe essential features of a data set of projection measurements suitable for tomographic imaging with given accuracy and resolution, and apply the results to analyze the use of synchrotron radiation to perform three‐dimensional microtomography. Previously, Grodzins [Nucl. Instrum. Methods 206, 541 (1983)] showed that the number of photons n...

We present results obtained with a new form of 3-D microscopy. The technique is based on tomographic methods and we refer to it as 3-D Microtomography. When used with a tunable X-ray source, it is a powerful diagnostic and research tool for a wide variety of materials studies problems. It is capable of producing maps of the interior structure and c...

The design of an x-ray detector suitable for use in tomography must be optimized for the intended application. Recently, we have developed microtomography applications that require resolution of -1 micron in three spatial dimensions and -1% statistical accuracy in the reconstruction of attenuation coefficients for each cubic micron volume element i...

We have developed a new X-ray microscope which produces complete three dimensional images of samples. The microscope operates by performing X-ray tomography with unprecedented resolution. Tomography is a non-invasive imaging technique that creates maps of the internal structure of samples from measurement of the attenuation of penetrating radiation...

The new technique of x-ray microtomography nondestructively generates three-dimensional maps of the x-ray attenuation coefficient inside small samples with approximately 1 percent accuracy and with resolution approaching 1 micrometer. Spatially resolved elemental maps can be produced with synchrotron x-ray sources by scanning samples at energies ju...

http://cfatab.harvard.edu/nr/

Standard latitudinally resolved energy balance models describe conservation of energy on a sphere subject to solar heating, cooling by infrared radiation and diffusive redistribution of energy according to a Fourier type heat flow with flux proportional to the gradient of temperature. The model determines the distribution of temperature with latitu...

In connection with the incompatibility between cluster and Hubble ages, and between the spread in cluster ages and formation during gravitational collapse of the Galaxy, a study of dating based on stellar evolution was conducted. A general approach was developed for estimating isochronal parameters using a statistic which measures the overall coinc...

An accurate treatment of radiative transfer is used to explore the effects of grain scattering properties on the photoionization and photodissociation efficiencies of atomic and molecular constituents in diffuse clouds and to calculate the rates of heat deposition by photoelectric emission from grains. The observational data on ionization and disso...

The effects of ultraviolet pumping on the population of the doublet fine-structure levels of Si(+) are investigated, and an efficient method for the numerical solution of the multi-line, multi-level radiative transfer problem is presented. Following a review of the atomic properties of Si(+), analytic results are presented for optically thin pumpin...

Using a linearized analysis, Flannery and Press (1979) demonstrated the existence of an ionization-coupled acoustic instability in the thermally stable phase of diffuse cold clouds in the ISM (interstellar medium). In this paper a series of one-dimensional, time-dependent, hydrodynamic calculations of the nonlinear development of that instability a...

New theoretical models are developed for X-ray induced stellar winds in binary systems on the basis of an accurate treatment of the hydrodynamics. The hydrodynamic equations are solved numerically in one dimension using an idealized model for the atomic processes involved in gas heating and cooling. It is found that the results depend on three dime...

Results are presented for several evolutionary sequences of close binary systems which resemble dwarf novae. The systems, containing white dwarfs and main-sequence companions, have masses less than 3.4 solar masses and periods less than 17 hours. The loss of angular momentum by gravitational radiation is included in the calculations. It is found th...

We show that the solution of the transfer equation appropriate for models of the penetration of diffuse UV radiation into interstellar clouds, subject to attenuation by coherent, nonconservative, anisotropic scattering from grains, can be expressed analytically, with arbitrary accuracy, by means of the spherical harmonics method. Models of plane-pa...