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 Generalized Zeros of 2 × 2 Symplectic Difference System and of Its Reciprocal System
Systems Analysis and Design: Chapter 2 - Understanding Organizational Style and Its Impact on Information Systems's Objectives is Understand that organizations and their members are systems and that analysts need to take a systems perspective; Recognize that different levels of management require different systems.
This authoritative book, highly regarded for its intellectual quality and contributions provides a solid foundation and life-long reference for anyone studying the most important methods of modern signal and system analysis. The major changes of the revision are reorganization of chapter material and the addition of a much wider range of difficulties.
This document provides information about using X.509 digital certificates issued by a Cisco IOS CA
server to authenticate VPN tunnels between Cisco routers. It provides design considerations,
step-by-step configuration instructions, and basic management options for VPN crypto devices using
X.509 digital certificates. This document is written for Cisco system engineers and assumes that you
have a working knowledge of Cisco IOS routers, as well as a basic understanding of IPSec,
ISAKMP/IKE, and X.509 digital certificates....
An Introduction to 3G Networks
What exactly are 3G networks? 3G is short for Third Generation (Mobile System). Here is a quick run-down: † 1G, or ﬁrst generation systems, were analogue and offered only a voice service – each country used a different system, in the UK TACS (Total Access Communications System) was introduced in 1980. 1G systems were not spectrally efﬁcient, were very insecure against eavesdroppers, and offered no roaming possibilities (no use on holidays abroad.)....
The mechatronic servo system is the major theme studied in this book. In
particular, the servo system adopted in an electric servo motor is explained in
this chapter. Several items of its utilization from the development stage to the
present as well as its performances. The so-called mechanism machine (called
as mechatronic servo system at the following), i.e.
The objective of this work was to support the design of mechatronic systems by the use of simulations. This raises the question of what exactly is mechatronics. Current definitions describe mechatronics as an interaction between electronics, mechanics and information technology, see Isermann  or Wallaschek . It makes no difference here whether we are talking about macromechanics or micromechanics.In the former case we speak of mechatronics, in the latter of micromechatronics or microelectromechanical systems (MEMS)....
It has long been recognised that an
appreciation of the role of structure is
essential to the understanding of architecture.
It was Vitruvius, writing at the time of the
founding of the Roman Empire, who identified
the three basic components of architecture as
firmitas, utilitas and venustas and Sir Henry
Wooton, in the seventeenth century1, who
translated these as ‘firmness’, ‘commodity’ and
The chapters of this book provide an excellent overview of current research
and development activities in the area of web information systems.
They supply an in-depth description of different issues in web information
systems areas, including web-based information modeling, migration between
different media types, web information mining, and web information extraction
This is a substantially new and different edition of Systems Analysis and Design.
We hope that the new materials bring it up to date and that we’ve
kept the best of the old. It has been written for people studying systems
analysis and design or who are already working in systems teams. People
who are involved in the development of new systems or the development of
new systems analysts, or both, have written it.
It is intended to be a practical book, easy to read and easy to use. It follows
the same structure as the previous edition and has new and updated
material in it. There are...
This book covers the recent development and progress of the wind energy conversion system. The chapters are contributed by prominent researchers in the field of wind energy and cover grid integration issues, modern control theories applied in wind energy conversion system, and dynamic and transient stability studies.
A query expresses in a high-level language like SQL must first
be scanned, parsed, and validated.
• Once the above steps are completed, an internal representation
of the query is created. Typically this is either a tree or graph
structure, called a query tree or query graph.
• Using the query tree or query graph the RDBMS must devise
an execution strategy for retrieving the results from the
• For all but the most simple queries, several different execution
strategies are possible. The process of choosing a suitable
execution strategy is called query optimization....
Power engineering is truly one of the main pillars of the electricity-driven modern
civilization. And over the years, power engineering has also been amultidisciplinary
field in terms of numerous applications of different subjects. This ranges from linear
algebra, electronics, signal processing to artificial intelligence including recent
trends like bio-inspired computation, lateral computing and the like.
Smart homes are intelligent environments that interact dynamically and respond readily in an adaptive manner to the needs of the occupants and changes in the ambient conditions. The realization of systems that support the smart homes concept requires integration of technologies from different fields. Among the challenges that the designers face is to make all the components of the system interact in a seamless, reliable and secure manner.
This is an introductive study on what Fuzzy Logic is, on the difference between Fuzzy Logic
and the other many-valued calculi and on the possible relationship between Fuzzy Logic
and the complex sciences. Fuzzy Logic is nowadays a very popular logic methodology.
Different kinds of applications in cybernetics, in software programming and its growing use
in medicine seems to make Fuzzy Logic, according to someone, the “new” logic of science