U215-A PRINTER

U215-A PRINTER

reclaimed into tank relying on the special device on nozzle and via nozzle and motor. Non-burn system fuel dispenser is widely adopted recently, vapor reclaiming in tank. In principle, the proportion of vapor and oil is 1 to 1, namely, each 1L oil decrease correspond to 1L vapor reclaimed to tank. A good capacity vapor recovery device should applicable to various kinds of vehicle inlet. In domestic market vacuum-aid vapor recovery is widely employed recently. Diagram 4-2: Pipeline Installation of Phase I Vapor Recovery Diagram 4-3: Phase II Vapor Recovery System Safety distance of vapor recovery system The safety distance between filling station that installed vapor recovery system and nearby construction and road could reduce by 30% that of non vapor recover system. Equipment deployment of vapor recovery system 4.1 The difference among various brand vapor recovery equipments are dealt method to vapor volume and refuel volume, dividing as the following three types: Adopting adjusting valve to regulate vapor influx: this method utilizes the pressure generated by oil flow to control air inlet, speed flow large air inlet, vice versa. Adopt electric pulse signal: to control frequency-varying motor through pulse signal, rotation of motor depend upon that of electric pulse. The type also reach 1 to 1 ratio of vapor recovery, mounting computer board. Adopt after-deal system: large amount of vapor and air is suck to tank using vacuum fuel dispenser pump, in tank abundant vapor and air being burn or reclaimed. Main components in vapor recovery system. The system includes vacuum pump, separated joi fuel dispenser nter, breakaway valve, coaxial hose and nozzle. Vacuum pump: there are two kinds of pumps----- centre-type reclaiming vacuum pump and distributed reclaim vacuum pump. Center-type reclaiming vacuum pump: adopt one or two vacuum pumps reclaiming vapor into tank, including power type and non-power type. Diagram 4-4: Center-type vacuum pump Diagram 4-5: Vacuum pump Center-type reclaiming vacuum pump

plus the new PIN twice for confirmation.　　Pre-Conditions　　The customer wants to change the PIN fuel dispenser of his payment card.　　The customers payment card allows central PIN management and PIN change.　　The merchant has the appropriate rights to accept payment card and the site systems are correctly set to　　perform the payment.　　The EPS is enabled for transactions handling in a status openstand by for new transaction.　　The POS is open in a shift cashier operated or the POS running the OPTCRIND process is open in a shift　　unmanned.　　Actors　　Actor Description　　Cashier Person who enters items at the POS and is accountable for the money in the cash　　 drawer. Sets the OPTCRIND active or not active. React to exception (when present　　 at the site).　　Customer Person who brings the item(s) to the POS and who wishes to purchases it (them).　　POS The application (or device) that allows the Cashier to enter transactions into the　　 system.　　EPS The application that manages the card payment application.　　Main Flow Description　　1. Customer brings the card to change its PIN.　　2. Cashier at the POS or the customer himself at the OPTCRIND selects the PIN change　　 functionality.　　3. If POS fails the process is aborted and the cashier has to recover fuel dispenser the POS (OPTCRIND not　　 available until that).　　4. POS passes PIN change request to EPS.　　5. If message invalid it is repeated or the process is fuel dispenser aborted and the cashier receives a specific　　 alarm. POS is still at the initial status.　　6. EPS gets card data　　7. EPS authorises card (not relevant where or how this is performed).　　 a. EPS asks for additional data (minimum: old PIN new PIN new PIN)　　 b. EPS performs any checkfunctionality according to cardconfigurationsystem　　

transactions, but will simply put buyers and sellers in contact with each other via mobile phone. I fuel dispenser t will be possible to access the system using just text messages. Electronic commerce could prove to have even greater appeal in developing countries, where the transport infrastructure is often poor, than in developed ones. Trying to change things from the ground up is more effective than lobbying authorities, insists Mr Quadir. “Without necessarily introducing enlightenment or new arguments, technology can quietly initiate novel ways of making things or trading them, potentially redistributing economic and political clout,�he says. Just as economists invoke the “invisible hand�of the market, he likes to speak of a technology as an “invisible leg�that can move an economy from one state to another. And even when a government adopts a sensible policy, there is no guarantee it will be implemented. Before the establishment of GrameenPhone, for example, the Bangladeshi government s stated policy was to promote universal access to telecommunications; but in practice not much happened. The clear success of GrameenPhone, however, prompted the government to issue more mobile licences, which led to today s thriving market. Technology, in short, makes it possible to change the facts on the ground first, so that government policy can then follow, says Mr Quadir. Power to the people, indeed. © 2006 .  fuel dispenser About sponsorship AT&T and BellSouth Big is beautiful Mar 9th 2006 From The Economist print edition fuel dispenser Getty Images A huge merger highlights the forces reshaping the telecoms industry Get article background “THERE S a lot of reasons to do this,�says Edward Whitacre, the boss of AT&T, of his company s $67 billion plan to acquire BellSouth, unveiled on March 5th. The deal will make AT&T, already the biggest telecoms firm in