English for Aviation is part of the Express Series. It is an ideal course for students in employment, who want to communicate better in English.
This short, intensive course can be completed in 25-30 hours, so students make progress quickly.
English for Aviation can be used as a stand-alone course, for self-study using the interactive MultiROM, or alongside a coursebook such as International Express.
Industrial robots are currently employed in a large number of applications and are available
with a wide range of configurations, drive systems, physical sizes and payloads. However,
the numbers in service throughout the world are much less than predicted over twenty
years ago (Engelberger 1980). This is despite major technological advances in related areas
of computing and electronics, and the availability of fast, reliable and low-cost
microprocessors and memory. This situation is mainly a result of historical and economic
circumstances, rather than technical considerations.
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The Portuguese began exploring the west coast of Africa shortly before Christopher Columbus was born; and
no sooner did they encounter negroes than they began to seize and carry them in captivity to Lisbon. The court
chronicler Azurara set himself in 1452, at the command of Prince Henry, to record the valiant exploits of the
negro-catchers. Reflecting the spirit of the time, he praised them as crusaders bringing savage heathen for
conversion to civilization and christianity.
After studying this chapter, you should be able to: Explain how information security affects information systems reliability; describe how a combination of preventive, detective, and corrective controls can be employed to provide reasonable assurance about information security.
Anticipating varied and fast-breaking regional crises in the future, the United States is reassessing how it prepares, maintains, and employs its military forces. Key to this effort is examining the combat support (CS) system, and particularly the command and control of CS forces (CSC2). This research looks at the current
Control methods for high-performance ASDs with induction motors by direct selection of consecutive states of the inverter are presented in this chapter. The direct torque control (DTC) and Direct Self-Control (DSC) techniques are explained, and we describe an enhanced version of the DTC scheme, employing the space-vector pulse width modulation in the steady state of the drive.
Electric motors convert electrical energy into mechanical energy by utilizing the
properties of electromagnetic energy conversion. The different types of motors
operate in different ways and have different methods of calculating the performance,
but all utilize some arrangement of magnetic fields. Understanding the concepts
of electromagnetics and the systems of units that are employed is essential to
understanding electric motor operation.The first part of this chapter covers the concepts
and units and shows how forces are developed.
The FlexWave™ Base Station Controller (BSC) provides common control for both the indoor
FlexWave nanoBTS and the outdoor FlexWave microBTS. Built with a modular and flexible IP-based
architecture, the FlexWave BSC uses IP connectivity to communicate with the FlexWave BTS units,
while offering a standard circuit-based A-interface to the MSC and a standard circuit-based Gb
interface to the SGSN. There is also an option to connect into core network architectures that
employ a softswitch MSC.
Conventional servo systems, to ensure machine performance, smoothness, positional error and low servo noise, require the adjustment of its servo’s gains as an initial crucial step. Even systems that employ auto-tuning require manual tweaking after the system is installed, especially if more that one axis are interdependent. Ezi-SERVO® employs the best characteristics of stepper and closed loop motion controls and algorithms to eliminate the need of tedious gain tuning required for conventional closed loop servo systems.
Battery chargers are employed for charging starter, traction, and stationary batteries as well as for supplying stand-by power. The demands for these devices are dependent on the operation conditions. Charging starter and traction batteries is mainly conducted during recesses. Hereby the consumers are disconnected for charging batteries (Figure 13.1). Charging for stationary batteries allows an ensured stand-by power supply for parallel and switch operation for DC consumers.
Target marketing is based on fundamental marketing principles that are employed by just about
all firms across all types of products and toward all types of audience segments. As the nation
undergoes dramatic demographic shifts, moving today’s ethnic minorities to the majority in
many geographic areas, target marketing to ethnic groups will increase.
Then work backwards on the
overall margins to see what the range will need to be for your product to be competitive
in the end market and pay for all the value chain functions between you and the
consumer. Price margin examples have been provided for handicraft items, but note
that other product lines – food, personal care products, etc. many have different
margins. Shipping and warehouse costs tend to be consistent across products, since
space is space for these functions. The exception is when climate controlled (e.g.
At the same time, by comparing over time, case studies document that well-executed investments can
provide benefits. These accrue through four main channels, namely (i) social infrastructure, often
supported by community development funds using land compensation; (ii) employment and jobs; (iii)
access to markets and technology for local producers; and (iv) local or national tax revenue. In all cases,
economic viability of investment is a necessary condition for positive social outcomes to materialize,
including food security.
The ideal experiment to evaluate the impact of socially responsible investing on performance
and fees would be to observe the same funds both with and without the SRI constraint. Most
previous studies (Gregory et al., 1997; Statman, 2000; Kreander et al., 2005; Bauer et al., 2005)
approximate the ideal experiment by comparing the performance of SRI funds to that of a
control group of comparable conventional funds, a methodology that is known as matched-pair
The IDB began its study thinking the funds had a major impact on em-
ployment and income. Our study shows the estimates we made. We
collected the data on employment generation in all the funds and ex-
penditures per year on average in the funds. The study found that the
impact of the funds on employment and income is small. Only the first
emergency fund of Bolivia added more than 1 percent per year to the
total number of jobs in the economy. Only three funds in the region added
more than 0.5 percent to the number of jobs. In other words, the funds
did not have a...
The remit of the long-term care insurance funds is to ensure the supply of permanent care for
their insured and to eliminate shortcomings in quality. They consequently control the quality
of the care supplied. Nevertheless, their ability to ensure the supply of care is limited by the
fact that they have no appropriate influence on the creation, promotion or maintenance of an
LTC infrastructure. This task is assigned to the states. Furthermore, the LTC transfers are paid
by the insurance funds.
Tax compliance is relatively high when the agency can match data from third parties (such as information on W-2 forms supplied by employers and financial institutions) to income tax returns and notify taxpayers of discrepancies. The net misreporting rate for income that is subject to third-party reporting is less than 5 percent.
Vernon Benignus reported having received remuneration for employment and
consultancy from a commercial entity or other organization with an interest re-
lated to the subject of air pollution. He also reported having provided an expert
opinion or testimony for a commercial entity or other organization as part of a
regulatory, legislative or judicial process. He equally stated having held an office
or other position, paid or unpaid, where he was expected to represent interests or
defend a position related to the subject of air pollution.