Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Existence and Nonexistence of Global Solutions of the Quasilinear Parabolic Equations with Inhomogeneous Terms
ON THE EXISTENCE OR THE ABSENCE OF GLOBAL SOLUTIONS OF THE CAUCHY CHARACTERISTIC PROBLEM FOR SOME NONLINEAR HYPERBOLIC EQUATIONS
S. KHARIBEGASHVILI Received 20 October 2004
For wave equations with power nonlinearity we investigate the problem of the existence or nonexistence of global solutions of the Cauchy characteristic problem in the light cone of the future. 1. Statement of the problem Consider a nonlinear wave equation of the type u := ∂2 u − ∆u = f (u) + F, ∂t 2 (1.1)
where f and F are the given real functions; note that f is a nonlinear and u is an unknown real...
In this paper, new simulation techniques are described to determine instability-free configurations, making it possible to guarantee that the final workpiece profile is round. With this information and taking into account other process restrictions, like system static stiffness and workpiece tolerance, the optimal grinding cycle is designed. These results have been implemented into an intelligent tool to assist the application of this research in industrial environments.
Global warming is the rising average temperature of Earth's atmosphere and oceans since the late 19th century and its projected continuation. Since the early 20th century, Earth's average surface temperature has increased by about 0.8 °C, with about two thirds of the increase occurring since 1980. Warming of the climate system is unequivocal, and scientists are more than 90% certain that most of it is caused by increasing concentrations of greenhouse gases produced by human activities such as deforestation and the burning of fossil fuels.
(BQ) Ebook Practical solutions to global business negotiations gives you and other international executives the savvy you need to negotiate with finesse and ease. It offers valuable insights into the fine points of negotiating and guidelines on delicate issues that can influence a promising deal.
In this paper we prove the global existence and uniqueness (regularity) of strong solutions to the three-dimensional viscous primitive equations, which model large scale ocean and atmosphere dynamics. 1. Introduction Large scale dynamics of oceans and atmosphere is governed by the primitive equations which are derived from the Navier-Stokes equations, with rotation, coupled to thermodynamics and salinity diﬀusion-transport equations, which account for the buoyancy forces and stratiﬁcation eﬀects under the Boussinesq approximation. ...
Energy and climate change are issues of critical importance for shaping a sustainable future, both in South Africa and globally. For South Africa, finding a policy approach which balances the increasing demand for energy with the need for sustainability, equity and climate change mitigation is a particular challenge. This book provides an innovative and strategic approach to climate policy, with local development objectives as its starting point.
The present paper describes a robust approach for abbreviating terms. First, in order to incorporate non-local information into abbreviation generation tasks, we present both implicit and explicit solutions: the latent variable model, or alternatively, the label encoding approach with global information. Although the two approaches compete with one another, we demonstrate that these approaches are also complementary. By combining these two approaches, experiments revealed that the proposed abbreviation generator achieved the best results for both the Chinese and English languages. ...
Recent studies in word sense induction are based on clustering global co-occurrence vectors, i.e. vectors that reflect the overall behavior of a word in a corpus. If a word is semantically ambiguous, this means that these vectors are mixtures of all its senses. Inducing a word’s senses therefore involves the difficult problem of recovering the sense vectors from the mixtures.
To analyze facts of HQHR; to assess factors affecting the development of HQHR in supply and demand of Human resources in HCMC in the GEI context; to present research methodology and objectives; to suggest points of view and solutions to HQHR development in GEI context of HCMC.
Building a linux vertual server system offers highly - available and scaluble solution for production services using specialized routing and load balancing tenique configured through the PIRANHA.Since the first desktop computers emerged in the late 1970s and early 1980s, the power, speed and storage capacity has increased radically, especially in recent years. Indeed, the whole approach to computing and database management has shifted...
Just ask anybody who knows me. I was never a huge fan of Microsoft’s
® Exchange Server—that is until Exchange
2003. Exchange Server 2003 introduced many of the features that I was looking for to be able to consider
Exchange a good, rock-solid environment for a corporate email solution. Now, with the introduction of Exchange
Server 2007 just around the corner, Microsoft is stepping up to the plate with their best offering to date.
The world economy of today is more integrated and interdependent than ever before. The
fact that in many industries historically distinct and separate markets are merging into one
global market leads towards an environment that offers more opportunities, but is also more
complex and competitive than it used to be.
One of the main factors that drive today’s economy is technology.
This section attempts to answer some of the questions you might formulate when you turn the first page: What does this toolbox do? Can I use it? What problems can I solve?, etc.
What Does this Toolbox Do?
The Partial Differential Equation (PDE) Toolbox provides a powerful and flexible environment for the study and solution of partial differential equations in two space dimensions and time. The equations are discretized by the Finite Element Method (FEM). The objectives of the PDE Toolbox are to provide you with tools that:
• Define a PDE problem, i.e.
THE Java™ Native Interface (JNI) is a powerful feature of the Java platform.
Applications that use the JNI can incorporate native code written in programming
languages such as C and C++, as well as code written in the Java programming
language. The JNI allows programmers to take advantage of the power of the Java
platform, without having to abandon their investments in legacy code. Because the
JNI is a part of the Java platform, programmers can address interoperability issues
once, and expect their solution to work with all implementations of the Java platform....
the complete process...
making progress Survival and competing in a global market may depend on a single competitive advantage or highly skilled knowledge built over many years. Vero provide both, combining unique and dedicated applications for die design and manufacture with a knowledgeable development team striving to keep Vero at the leading edge of technology.
Continued cellular market penetration, burgeoning consumer demand for
wireless rich media, and the promise of even more data-intensive applications
continue to drive bandwidth consumption, fueling an estimated 100 percent
increase in the global number of cellular base stations by 2009. 3G and 4G
cellular services, which require very low latency and packet-based switching,
place additional burdens on existing infrastructure, taxing copper backhaul
solutions to their limits.
This book has almost nothing to do with the current housing and credit crisis. Wolf only says in the last couple of pages that part of the world savings glut was recycled in excess US residential investment. And, that's it.
The theoretical metrics
developed, such as genetic variance and heritability (Fisher, 1930; Wright, 1931), provided
the quantitative standards necessary for the evolutionary synthesis. Further research has
focused on the origin of genetic diversity, its maintenance and its role in evolution. Simple
questions such as “who breeds with whom” initiated studies on the relatedness of