RFID

RFID

(pronounced as separate letters) Short for radio frequency identification, a technology similar in theory to bar code identification. With RFID, the electromagnetic or electrostatic coupling in the RF portion of the electromagnetic spectrum is used to transmit signals. An RFID system consists of an antenna and a transceiver, which read the radio frequency and transfer the information to a processing device, and a transponder, or tag, which is an integrated circuit containing the RF circuitry and information to be transmitted. RFID systems can be used just about anywhere, from clothing tags to missiles to pet tags to food -- anywhere that a unique identification system is needed. The tag can carry information as simple as a pet owners name and address or the cleaning instruction on a sweater to as complex as instructions on how to assemble a car. Some auto manufacturers use RFID systems to move cars through an assembly line. At each successive stage of production, the RFID tag tells the computers what the next step of automated assembly is. One of the key differences between RFID and bar code technology is RFID eliminates the need for line-of-sight reading that bar coding depends on. Also, RFID scanning can be done at greater distances than bar code scanning. High frequency RFID systems (850 MHz to 950 MHz and 2.4 GHz to 2.5 GHz) offer transmission ranges of more than 90 feet, although wavelengths in the 2.4 GHz range are absorbed by water (the human body) and therefore has limitations. RFID is also called dedicated short range communication (DSRC).

外汇交易中的一些术语

今天有朋友问起外汇交易中的一些术语,问题虽然简单,但新入市的朋友不知道的可能还有不少,找了一点相关的资料,希望能对他们有用

外汇之家freewh

交易部位、头寸(POSITION)
是一种市场约定，承诺买卖外汇合约的最初部位，买进外汇合约者是多头，处于盼涨部位；卖出外汇合约为空头，处于盼跌部位。
空头、卖空、作空(SHORT)
交易预期未来外汇市场的价格将下跌，即按目前市场价格卖出一定数量的货币或期权合约，等价格下跌后再补进以了结头寸，从而获取高价卖出、低价买进的差额利润， 这种方式属于先卖后买的交易方式。（保证金适用）
多头、买入、作多(LONG)
交易者预期未来外汇市场价格将上涨，以目前的价格买进一定数量的货币，待一段时汇率上涨后，以较高价格对冲所持合约部位，从而赚取利润。这种方式属于先买后卖交易方式，正好与空头相反。
平仓、对冲 (Liquidation)
通过卖出（买进）相同的货币来了结先前所买进（卖出） 的货币。
保证金(MARGIN)
以保证合同的履行和交易损失时的担保，相当于交易额的1%（200倍）～5％（20倍）， 客户履约后退还，如有亏损从保证金内相应扣除。
.
揸：买入（源自粤语）
沽：卖出（源自粤语）
.
波幅：货币在一天之中振荡的幅度
窄幅：30～50点的波动
区间：货币在一段时间内上下波动的幅度
部位：价位坐标
上档、下档：价位目标．（价位上方称为阻力位，价位下方称为支撑位）
底部：下档重要的支撑位
长期：一个月～半年以上（200点以上）
中期：一星期～一个月（100点）
短期：一天～一星期（30～50点）
.
单边市：约有10天半个月行情只上不下、只下不上
熊市：长期单边向下
牛市：长期单边向上
上落市：货币在一区间内来回、上下波动
牛皮市：行情波幅狭小
交易清淡：交易量小，波幅不大
交易活跃：交易量大，波幅很大
消耗上升：上升慢，下降快
.
上扬、下挫：货币价值因消息或其它因素有突破性的发展
胶着：盘势不明，区间狭小
盘整：一段升（跌）后在区间内整理、波动
回档、反弹：在价位波动的大趋势中，中间出现的反向行情
打底、筑底：当价位下跌到某一地点，一段时间波动不大，区间缩小（如箱型整理）
破位：突破支撑或阻力位（一般需突破20～30点以上）
假破：突然突破支撑或阻力位，但立刻回头
作收：收盘
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上探、下探：测试价位
获利了结：平仓获利
恐慌性抛售：听到某种消息就平仓，不管价位好坏
停损、止损：方向错误，在某价位立刻平仓认赔
空头回补：原本是揸市市场，因消息或数据而走沽市．（沽入市或沽平仓）
多头回补：市场原走沽市，后改走揸市．（揸入市或揸平仓）
单日转向：本来走沽（揸）市，但下午又往揸（沽）市走，且超过开盘价
卖压：逢高点的卖单
买气：逢底价的买单
止蚀买盘：作空头方向于外汇市场卖完后，汇率不跌反涨，逼得空头不得不强补买回
.
补充：
锁单：是保证金操作常用的手法之一，就是揸(买)沽(卖)手数相同。
漂单：就是做单后不在即日(市)平仓的意思。

How to Save $5000 on Forex Trading Training and Get it Free

A very interesting training video. Enjoy

How to Save $5000 on Forex Trading Training and Get it Free

Enter Profitable Territory With Average True Range

Enter Profitable Territory With Average True Range

The indicator known as average true range (ATR) can be used to develop a complete trading system or be used for entry or exit signals as part of a strategy. Professionals have used this volatility indicator for decades to improve their trading results. Find out how to use it and why you should give it a try.

What Is ATR?
The average true range is a volatility indicator. Volatility measures the strength of the price action, and is often overlooked for clues on market direction. A better known volatility indicator is Bollinger bands. In "Bollinger on Bollinger Bands" (2002), John Bollinger writes that "high volatility begets low, and low volatility begets high." Figure 1, below, focuses solely on volatility, omitting price so that we can see that volatility follows a clear cycle.

FX Trading The Martingale Way

FX Trading The Martingale Way

Imagine a trading strategy that is practically 100% profitable - would you be interested? Most traders will probably reply with a resounding "Yes", especially since such a strategy does exist and dates all the way back to the eighteenth century. This strategy is based on probability theory and if your pockets are deep enough, it has a near 100% success rate. Known in the trading world as the martingale, this strategy was most commonly practiced in the gambling halls of Las Vegas casinos and is the main reason why casinos now have betting minimums and maximums and why the roulette wheel has two green markers (0 and 00) in addition to the odd or even bets. The problem with this strategy is that in order to achieve 100% profitability, you need to have very deep pockets - in some cases, they must be infinitely deep. Unfortunately, no one has infinite wealth, but with a theory that relies on mean reversion, one missed trade can bankrupt an entire account.Also, the amount risked on the trade is far greater than the potential gain. Despite these drawbacks, there are ways to improve the martingale strategy. In this article, we'll explore the ways you can improve your chances of succeeding at this very high risk and difficult strategy.

What is Martingale Strategy?
Popularized in the eighteenth century, the martingale was introduced by a French mathematician by the name of Paul Pierre Levy. The martingale was originally a type of betting style that was based on the premise of "doubling down". Interestingly enough, a lot of the work done on the martingale was by an American mathematician named Joseph Leo Doob, who sought to disprove the possibility of a 100% profitable betting strategy.

The mechanics of the system naturally involve an initial bet; however, each time the bet becomes a loser, the wager is doubled such that, given enough time, one winning trade will make up all of the previous losses. The introduction of the 0 and 00 on the roulette wheel was used to break the mechanics of the martingale by giving the game more than two possible outcomes other than the odd vs. even or red vs. black. This made the long-run profit expectancy of using the martingale in roulette negative and thus destroyed any incentive for using it.

To understand the basics behind the martingale strategy, let's take a look at a simple example. Suppose that we had a coin and engaged in a betting game of either head or tails with a starting wager of $1. There is an equal probability that the coin will land on a head or tails and each flip is independent, meaning that the previous flip does not impact the outcome of the next flip. As long as you stick with the same directional view each time, you would eventually, given an infinite amount of money, see the coin land on heads and regain all of your losses plus $1. The strategy is based on the premise that only one trade is needed to turn your account around.

Radianz

BT Radianz

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BT Radianz (formerly known as Radianz before being acquired by BT Group plc in 2005), operates the world's largest IP-based secure financial extranet (RadianzNet) connecting worldwide financial institutions and stock markets together. Additionally, they provide Hosting services to Financial clients at 16 Global Financial Data Centers through the Proximity and Hosting Product lines. They also offer ULTRA, their Ultra Low-latency connectivity to the major exchanges, currently launced in the NY-metro area, but soon being turned up in Chicago and London.

Originally spun off by Reuters and Equant in February 2000 to create a secure and content-neutral global IP network, the service is available in all major financial centers around the world, and provides services such as multicast feeds of market data as well as normal company-to-company connectivity among financial institutions. Under BT the global reach is expected to extend to over 100 cities using their MPLS network capabilities. This company connects the financial end users to content and trading exchanges worldwide via a secure IP environment. Many clients connect to the Radianz network and access over 200 different content providers (equities, FX, fixed income.)^[1]

In 2004, 2005, and 2006 the readers of Waters (Magazine) named BT Radianz Best Financial Network Provider.

Service-oriented architecture

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Service Oriented Architecture (SOA) is a computer systems architectural style for creating and using business processes, packaged as services, throughout their lifecycle. SOA also defines and provisions the IT infrastructure to allow different applications to exchange data and participate in business processes. These functions are loosely coupled with the operating systems and programming languages underlying the applications.^[1] SOA separates functions into distinct units (services), which can be distributed over a network and can be combined and reused to create business applications.^[2] These services communicate with each other by passing data from one service to another, or by coordinating an activity between two or more services. SOA concepts are often seen as built upon, and evolving from older concepts of distributed computing^[2] and modular programming.