Finishing line

In effect, the ions race each other along the drift tube, but the winners are always the ions of smallest m/z value, since these have the shortest flight times. The last to arrive at the detector are always those of greatest mass, which have the longest flight times. However, as in a race, for there to be a separation at the finish line (the detector), the ions must all start from the ion source at the same time (no handicapping allowed ). 

The pay-off roll is unwound by the tension of the sheet, caused by the speed of the recoiler at the finishing line and the bridles positioned at different locations. The pay-off roll motors therefore operate in a regenerative mode and can feed-back the energy thus saved to the source of supply, if desired. This can be done by using a full-wave synchronous inverter, as shown in Figures 6.31 or 6.33. 

Dubrowski, Fran. Crossing the Finish Line. THE ENVIRONMENTAL FORUM. July/August 1997. pp.28-37. 

This is steel or aluminium sheet made in a continuous ribbon and wound tightly onto a bobbin to form a coil of metal. On a coil finishing line, the coil can be fitted at one end, and wound up pretreated, primed and finished on both sides at the other end. Sheets of painted metal can be cut from the coil and formed for use as the exterior cladding for, for example, industrial buildings and caravans. 

Each finishing line consists of a mixing vessel and a separation unit. The mixing process is assumed to be ideal such that the following relation holds ... 

Each of the two finishing lines is dedicated to one EPS-type A or B. The separation units have to be provided with a permanent feed with a rate between 0.10 and 0.25 polymerization batches per hour. The residence time in a separation unit is 24 h regardless of the feed rates. A start-up as well as a shut-down of a separation unit requires a set-up time of 24 h. 

The decisions should be taken in an optimal fashion subject to the plant topology and the processing constraints with the objective to maximize the profit, given as the difference of revenues for products and costs for the production. The demands are specified by their amounts and their due dates, where the revenues decrease with increasing lateness of the demand satisfaction. The production costs consist of fixed costs for each batch and for the start-up- and shut-down-procedures of the finishing lines, and variable costs for the product inventory. 

The scheduling problem is complicated by the fact that the coupled production of grain size fractions and the mixing in the finishing lines prohibit a fixed assignment of recipes to products. Furthermore, there is neither a fixed assignment of storage tanks nor of polymerization reactors to batch processes. 

Changeovers No changeovers appear in the preparation stage and in the polymerization stage. The start-ups and shut-downs of the finishing lines are changeovers with certain set-up times which cause costs (see below). 

The capacities of the continuously operated finishing lines k = A, B are lower and upper bounded by the feed rates, Fmm and Fmax (with Fmm = 0.10 and Fmax = 0.25), respectively. The bounds on the integral feed Fnk are given by the case that the feed rate is at its lower or upper bound during the whole interval dn ... 

The feed into the mixing tanks of the finishing lines is defined by the number of polymerization batches produced per period and is required to be either zero or between the minimum and the maximum capacity depending on the state of the finishing lines. 

A finishing line has to stay in the same operation state for at least two successive periods before the operation state can be changed again. This requirement does not comprise the initial operation state. 

The objective is to maximize the profit which is calculated by a cost model of sales revenues, production costs, storage costs, and penalties for lateness and for finishing line start-ups and shut-downs. The cost model adds some equality and inequality constraints with associated real valued variables for the sales, deficits, and the storage, but it does not further restrict the feasibility of the production decisions. 

In-process controls for the reduction of wastewater flows and loads for emulsion crumb mbber plants include recycling of finishing line wastewaters and steam stripping of heavy monomer decanter wastewater. Recycling of finishing line wastewater occurs at nearly all emulsion crumb plants with the percent recycle depending primarily upon the desired final properties of the crumb. Approximately 75% recycle is an achievable rate, with recycle for white masterbatch crumb below this level and that for black masterbatch crumb exceeding it. 

People with fear of success get close to the finish line and then find an excuse not to cross it. Those of you who have it will be glued to every word in this section. Those of you who don t might be scratching your head as to how fear of success occurs. But, trust me, it is a very significant and common roadblock. 

Passed is a verb. He passed me just before 1 crossed the finish line. Past can be a noun, adjective, or a preposition. She drove past (preposition) the bank before she realized it. It s important to remember the past (noun). Past (adjective) performance is often used to predict future performance. 

The Problem The tortoise and the hare are both poised at the starting line of a 1-mile race. The tortoise can muster up a full 1-mile-per-hour speed, and the hare boasts a hopping speed of 8-miles-per-hour. The starter s gun sounds, and both take off at their top speed. After one minute, the hare decides he has time to take a nap and snoozes for the next 54 minutes. He wakes up and makes a dash for the finish line. How long does it take him to catch up to the tortoise ... 

So the distances are equal and the hare catches up in a little more than one hour. But that s too late. The tortoise crossed the finish line after one hour, and the hare hadn t caught up to him yet, so the tortoise wins, yet again. 

The Problem The contestant from Kenya can run the 10,000-meter race at an average of 6 meters per second. The contestant from Ethiopia has a best time so far of 5.5 meters per second. How far back should the runner from Kenya start to have the expectation that they would cross the finish line at the same time if they both start at the same time ... 

This conclusion has also been supported by many other ultraendurance races. For example, the Eco-Challenge requires teams to cover hundreds of miles over various terrain in extremes of weather conditions. The first team to cross the finish line wins. Sleep, like many other physical needs, is constantly being prioritized for optimal performance. In the 2002 race, the winning team completed the course in approximately 170 hr during which time the team members slept a mere 17 hr. This represented an increase in percentage sleep... 

As the mobile phase (inert gas) carries the chemicals through the column, repeated partitioning of molecules takes place between the mobile and the stationary phases, and molecules of same (or similar) chemical and physical nature are separated into groups. These groups reach the end of the column at different times. This process is called elution, and it can be compared to a marathon race all runners start at the same time, but reach the finish line at different times due to the differences in their athletic ability. 

Camels are okay—today s camel builders will be tomorrow s leaders (camels cross the finish line every time). 

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