Global convergence results are derived for well-known conjugate gradient methods in which the line search step is replaced by a step whose length is determined by a formula. The results include the following cases: 1. The Fletcher-Reeves method, the Hestenes-Stiefel method, and the Dai-Yuan method applied to a strongly convex LC objective function; 2. The Polak-Ribière method and the Conjugate ...

perfused organs to examine sugar catabolism and metabolism, Holmes underscores the relationship between the laboratory elucidation of a significant intermediate compound like acetone and the clinical knowledge of ketone body production in diabetes. But, he concludes, the early-twentieth-century integrative optimism evaporated, to be re-formulated in the 1930s with the announcement of the "Embde...

The object of this paper is the theta divisor of the compactified Jacobian of a nodal curve of genus g. We determine its irreducible components and give it a geometric interpretation. A characterization of hyperelliptic irreducible curves in M g is appended as an application.

In this paper (part three of the trilogy) we use low degree G 1 and G 2 continuous regular algebraic spline curves deened within parallelograms, to interpolate an ordered set of data points in the plane. We explicitly characterize curve families whose members have the required interpolating properties and possess a minimal number of innection points. The regular algebraic spline curves consider...

Title of dissertation: A STOCHASTIC EQUILIBRIUM MODEL FOR THE NORTH AMERICAN NATURAL GAS MARKET Jifang Zhuang, Doctor of Philosophy, 2005 Dissertation directed by: Professor Steven A. Gabriel Department of Civil and Environmental Engineering This dissertation is an endeavor in the field of energy modeling for the North American natural gas market using a mixed complementarity formulation combin...

Using a soil improvement biotechnology based on microbial-induced carbonate precipitation (MICP) to form horizontal water barrier in foundation pit dewatering can not only achieve good control effect, but also the cost and obtain economic environmental benefits. In this study, taking Shanghai layer ⑨ sand as research object, solution injected into by MICP grouting technology includes bacterial ...

As the heterogeneity of pore systems, carbonate rocks commonly exhibit unpredictable porosity vs. permeability relationship and make exploitation prediction prolific reservoirs difficult. Most published studies on systems were conducted in sandstones shales, while rocks, especially dolostones have received little attention. In this study, we investigate porous dolostone reservoir Lower Triassic...

Climate change and desertification caused increases in sandstorms sand movements due to the erosive force of wind. Wind erosion is a phenomenon depending on climatic components surface roughness arid semi-arid regions responsible for health economic loss. The controlled by increasing resistance soils using chemical, physical biological methods. Due high cost environmental issues conventional te...

Most engineering infrastructures, including municipal solid waste containment facilities, are situated in unsaturated zone. The use of chemical additives for soil improvement has been linked to the adverse environmental issues being experienced globally. Research into more sustainable methods led discovery a novel and innovative method known as microbial induced calcite precipitation (MICP). La...