It is well-known that the standing wave u0 for the KPP type convectiondiffusion equation is stable if the perturbations of the initial data are in the weighted function spaces proposed by Sattinger. We study boundary conditions so that in a large finite domain, there is a stable standing wave ũ near u0. The standing wave ũ may not be monotone, and the stability is proved by pseudo exponential d...

The Hyper Text Transfer Protocol (HTTP) protocol plays a vital role in Web Services Security. Though the HTTPs provide excellent security, they are not flexible enough to allow caches. HTTPi provides high integrity and low security whereas HTTPs provide low integrity and high security. The goal of WS activity is to build up set of technologies in order to direct WS to their complete prospective...

It has been known for a long time that t-designs can be employed to construct both linear and nonlinear codes and that the codewords of a fixed weight in a code may hold a t-design. While a lot of progress in the direction of constructing codes from t-designs has been made, only a small amount of work on the construction of t-designs from codes has been done. The objective of this paper is to c...

Objective. In the United States, growth regulations aimed at environmental protection and better-quality urban areas have become very popular since the 1960s. Although many studies have examined the housing-price effects of local and regional growth management regulations, none has examined the effects of a state law. Past research has also tended to be cross-sectional, rather than longitudinal...

Soil erosion by water is a widespread phenomenon throughout Europe and has the potentiality, with his on-site and off-site effects, to affect water quality, food security and floods. Despite the implementation of numerous and different models for estimating soil erosion by water in Europe, there is still a lack of harmonization of assessment methodologies. Often, different approaches result in ...

Game theory has become an important tools for making resource allocations decision in security domains, including critical infrastructure protection. Many of these games are formulated as Stackelberg security games. We present new analysis and algorithms for a class of Stackelberg security games with identical, fully protective defender resources. The first algorithm has worst-case complexity l...

A model was developed to estimate total suspended solids (TSS) removal in the Stormceptor, an oil/sediment separator. The model was based on a commonly used continuous simulation model (USEPA SWMM) for hydrological processes. The suspended solids’ loading was estimated using build-up and wash-off equations. The solids were assumed to be distributed into five particle sizes for settling calculat...

Singular spectrum analysis, a technique to detect oscillations in short and noisy time series, was Ðrst developed for geophysical applications. This work o†ers a generalization for long and noisy time series in astrophysical applications. The motivating problem is the detection of low-amplitude solar oscillations. Subject headings : methods : data analysis È Sun: oscillations

The currently adopted strategy of EOP estimation from VLBI is to estimate six parameters: UT1, UT1 rate, pole positions and nutation o sets for each 24-hour session independently. Then the resulting time series of raw Earth orientation parameters are ltered and a regression analysis is performed in order to obtain nutation coe cients, polhode of the pole and other physical parameters. Thus, the...

one of the specific aspects of our time is the existence of world trade organization as an important international center. this organization regulates the commercial laws among the countries, and tries to provide a suitable environment for trade by eliminating the subsidies using protection policies and making a better condition for competition. in order to achieve this objective, the economic ...