The first edition of Handbook of MRI Technique was a resounding success. The rapidly increasing number of radiographers and technologists entering the modality, coupled with the development of education and training courses worldwide, has resulted in an increased demand for MRI books of any shape and size. The education of radiographers, technologists and radiologists often lags behind the rapid technological advances in MR.
The introduction of the technology for bonded composite repairs of metallic
airframe structures could not have come at a more opportune time. Today, many
countries are facing the challenge of aging aircraft in their inventories. These
airframes are degrading due to damage from fatigue cracking and corrosion.
Repair with dependable techniques to restore their structural integrity is
mandatory. The concept of using bonded composite materials as a means to
maintain aging metallic aircraft was instituted in Australia approximately thirty
Acoustic fatigue is due to a very high intensity excitation as a result of pressure
waves caused by either engine or aerodynamic effects. Acoustically-induced
cracking has occurred on the external surface of the lower nacelle and aft fuselage
skins on the F/A-18, as illustrated in Figure 19.1. In the former region, overall
sound pressure levels greater than 170dB have been measured in flight [l]. These
high sound pressure levels appear to be a result of an aerodynamic disturbance at
the inlet lip....
Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: Contribution à l’étude du couple Fomes annosus-épicéa variabilité de l’hôte et de l’agent pathogène ...
Brent Weinstein, head of the new UTA Online division, told The New York Times, “The barrier to entry is so low, everybody is now a potential artist.” The agents will look at unsolicited submissions, preferably as web links.
New media’s impact on publishing
The migration of consumers from print to new media has been dramatic. In 1892, London had 14 evening newspapers; now there is one (plus a couple of skimpy give-aways). In 1960, 80 percent of Americans read a daily paper; now it’s more like 50 percent. Naturally, the money follows the consumers, and the internet is where they...
Natural and social scientists face a great challenge in the coming decades:
to understand the role that humans play in ecosystems, particularly urban
ecosystems. Cities and urbanizing regions are complex coupled humannatural
systems in which people are the dominant agents. As humans
transform natural landscapes into highly human-dominated environments,
they create a new set of ecological conditions by changing ecosystem
processes and dynamics.
As in the ﬁrst edition, I’ve tried to make this Encyclopedia a comprehensive source of informa-
tion about matters relating to networking. I’ve also tried to present the information in a clear
and useful manner.
This book contains comprehensive, straightforward summaries of the major concepts,
issues, and approaches related to networking. Networking is deﬁned broadly to encompass
conﬁgurations ranging from a couple of connected computers just a few feet apart to a network
of several thousand machines (of all types and sizes) scattered around the world.
During development of an undivided ﬂow battery based on the Pb(II)/Pb and PbO2 /Pb(II) couples in aqueous methanesulfonic acid, it was noted that battery performance might be improved by additives that (i) decrease the roughness of the lead deposit at the negative electrode and (ii) enhance the kinetics of the Pb(II)/PbO2 couple at the positive electrode. This paper reports the study of sodium ligninsulfonate and polyethylene glycol as potential levelling agents for lead and of three inorganic ions as possible catalysts for the Pb(II)/PbO2 couple. ...
The Internet is a loosely coupled federation of computer servers
and clients. Clients are sometime disconnected, and yet they need
to be able continue functioning. Rather than building tightly-
coupled RPC-based applications, Internet-scale applications must
be constructed as asynchronous tasks structured as workflows
involving multiple autonomous agents. eMail gives an intuitive
understanding of these design issues. You want to be able to read
and send mail...
The rapid erosion of privacy poses numerous puzzles. Why is it occurring, and why do
people care about it? This paper proposes an explanation for many of these puzzles in terms of
the increasing importance of price discrimination. Privacy appears to be declining largely in order to
facilitate di®erential pricing, which o®ers greater social and economic gains than auctions or shopping