Electro Valve Closed Centres.
In this type of facility, all roads are closed, preventing, for example, move the cylinder rod
manually. Furthermore since the pressure line is closed fluid is not choice but to follow the pond
through the safety valve. This
.The Copper alloys, much harder than the pure metal, have a higher resistance and therefore
can not be used in electrical applications, however, corrosion resistance is almost as good as
that of pure copper and are easy to operate . The two
Binary copper-zinc brasses.
Binary brasses have very specific characteristics and applications are related to the percentage
of zinc alloy containing. Uses:
Discs for coins and badges.
Cases of bullets.
Aluminum and its alloys are characterized by relatively low density (2.7 g / cc), high electrical
and thermal conductivity and corrosion resistance in some environments, including atmospheric.
Many of these alloys can be given different fo
An automatic process two double-acting cylinders where its operation is sequentially, which also
valves required non-return piloted to ensure the return of and other actuators is needed
assurance that as you work hard there is no greater dang
roasting phase, galena is mixed with silica, limestone and flux material, and heated in air until
the lead sulfide is converted to oxide.
In the melt phase, a blast furnace is used, similar to those used in steelmaking. Lead oxide is
mixed with coke and l
ULTRALIGEROS METALS: MAGNESIUM ALLOYS
Magnesium is very abundant in the earth's crust; is the lightest of industrial metals with a
density of 1,74g / cm. Its melting point is 650 C. It is a lightweight metal, silvery white and
pretty hard. Becomes slightl
WHY REMOVE THE LEAD OF FUELS?
As we know "heavy" metals (lead, manganese, mercury, cadmium, etc.) are harmful to
both the environment and human health, have a bad habit of focusing on reaching tissues
trigger mutagenic processes in cells.
From the point o
TOOLS FOR MEASURING AND CHECK
Tape: You can measure many meters, depending on the model and least appreciated
Flexible rule: You can measure up to 50 cm. and appreciate the media millimeters.
Calibre or caliper: You can measure exteriors, int
Chromium is a metal bright white, very hard, brittle and crystalline structure.
It is very resistant to oxidation and corrosion, and withstands high temperatures well preserving
its shiny appearance.
The main source of chromium is a min
Autonomy and consumption: The SL 202 is equipped with five tanks of 100 liters each filling
which can not exceed 80%, equivalent to dispose of 400 liters of LPG and since consumption to
100 liters ranges from 105 liter is about a range of 380 kms. The NL
Experiences, perspectives and observations
Over twenty years ago, was developed in Costa Rica relevant experience of use of fuel ethanol,
with little success and various problems that left major scars and a diffuse disappointment,
keeping until now doubts
Biotechnology: when cars move Alcohol
In all countries of the world the cars are moved by petroleum fuels. However, it is possible to
use biotechnology to produce alternative fuels such as alcohol (ethanol). Although it is at least
so far, a more expensiv
Ethanol alcohol produced from the garbage. 85 Ethanol (85% ethanol and
15% gasoline) is for applying light work and Ethanol 95 (95% ethanol and 5% gasoline) is for
heavy duty application. It is estimated that there will be in stores about 250,000 vehicles
Favors the domestic market.
Reduced fuel imports:
Energy security, fulfilling the Proceedings of the European Union. EPACT (1992). ECRA (1998).
Alternative technologies for energy production from biomass:
- Gasification: Conversion of biomass to gaseous f
In this research we aim to study the factors that influence the choice of fuel use, for which we
hypothesized that the best fuel option is one that is more affordable, which cause less
environmental impact and are more known by people.
Solubility of water in gasoline / ethanol blends
Phase separation: The problem with the separation of a water layer below the gasoline, may
occur when water is introduced in the condensed or vehicle tank or tanks other storage
systems. Pure gasoline pract
The organic fuels are materials of animal origin or plant capable of releasing energy when
changing or transforming their chemical structure. They are classified into two types fossil fuels
Obtain fuels from biomass.
There are several ways to classify the different fuels that can be obtained from biomass.
Perhaps the most relevant is the production process required before the fuel is ready for use.
Direct use. The biomass used only suffer ph
A huge technical discussion of values and is developing around the world,
relation to the duties and rights of Internet users. During the first stage of
introduction of new technologies, countries face a number of situations
that harm an
Actors and Trends of the New Economy
In the new economy that is developing Internet through the main
protagonist is information. Just as railways and steam technologies
revolutionized the way of transporting people and goods through the
continents, the In
DEVELOPMENT POLICY IT WORLDWIDE
The high-income countries are those that have shown the highest level of development
TI. However, this situation has not occurred as a result of only
its greater resources or because they have operated freely markets
Complementary service providers. Includes all necessary management services for trade itself,
as electronic payments,
certification / authentication of signatures of customers and suppliers, storage and
distribution of products, etc.
Content Providers: I
Custom Marketing (e-Marketeers)
Internet has proven to be the fastest growing in the history of man,
from its commercial introduction. Limited by low literacy, early
print media took over a century to reach a population of 50 million
users. Radio (1922) t
Capitalization Process of Regional Business
The explosion of strategic alliances and mergers and acquisitions
Latin American linked to the Internet shows that the new economy is anchored in
region. The purchase of US ISP Prodigy by Mexico's Telmex phone
Electronic commerce and e-business
E - business
Is meant by e-business (e-biz) or e-business aspects assembly
related business management companies using Technology
Information (TI) over the Internet to improve the efficiency of their areas. While the
Evolution of Electronic Commerce at the International Level
Like other mass media that have preceded you, Internet
has a prehistory of over twenty years, ranging from the creation in 1969 of
ARPANET, the first computer network, until the set
The Cost of Access
He is known for ISP (Internet Service Provider) to service providers
connection to the Web. Internet access can be done in two ways. An
switched telephone line (can be fixed or mobile) or a dedicated line
(Telephone or cable
The Three Stages of e-money
The new economy is being starring largely by companies
brand new, emerging talent and vision of young entrepreneurs who
must go through several stages in finding and obtaining financing medium
and long term.
The first of these
Sales of IT Industry
The market for information technologies is composed of all companies
dedicated to the sale of hardware and software, including within the first
computers, printers and all kinds of components and accessories.
According to a history of