Slaving

The system also consists of a LCD-screen located nere the object to be scanned. This screen is a slave to the one on the acqusition computer and consequently shows the same image. The purpose of this screen is to help the scanner technician to acheive a full coverage of the area to be scanned. 

FIG. 10-109 Butt a) and slave (h) joints for compression packing rings. 

The types of D-CS and the eontrol systems available in the plant. The protoeol of these systems and their relationships to the eondition monitoring system. The slave or master relationship is important in setting up the protoeols. 

While Charles Frank was soaking up Volmer s ideas in 1947, Volmer himself was languishing as a slave scientist in Stalin s Russia, as described in a recent book about... 

The oldest form of combined heat and power is the smokejack, developed in Tibet to turn prayer wheels during religious ceremonies. Captured Tartar slaves introduced this device into Europe by the early fourteenth centuiy and Leonardo da Vinci sketched one around 1480. Commentators as diverse as Montaigne (1580), John Evelyn (1675), and Benjamin Franklin... 

Revolving mill invented it is powered by slaves and asses. 

Quern or revolving mill is invented turned by slaves or asses. 1827... 

Thompson, J. W., Scotter, G. W., and Ahti, T. 1969. Lichens of the Great Slave Lake Region, Northwest Territories, Canada. The Bryologist 72 137-177. 

The development of a calibration model is a time consuming process. Not only have the samples to be prepared and measured, but the modelling itself, including data pre-processing, outlier detection, estimation and validation, is not an automated procedure. Once the model is there, changes may occur in the instrumentation or other conditions (temperature, humidity) that require recalibration. Another situation is where a model has been set up for one instrument in a central location and one would like to distribute this model to other instruments within the organization without having to repeat the entire calibration process for all these individual instruments. One wonders whether it is possible to translate the model from one instrument (old or parent or master. A) to the others (new or children or slaves, B). 

In control situations with more then one measured variable but only one manipulated variable, it is advantageous to use control loops for each measured variable in a master-slave relationship. In this, the output of the primary controller is usually used as a set point for the slave or secondary loop. 

With this arrangement, the output of one controller is used to adjust the set point of another. Cascade control can give smoother control in situations where direct control of the variable would lead to unstable operation. The slave controller can be used to compensate for any short-term variations in, say, a service stream flow, which would upset the controlled variable the primary (master) controller controlling long-term variations. Typical examples are shown in Figure 5.22c (see p. 235) and 5.23 (see p. 235). 

Caucasians (Okpaku et al, 2005 Strickland etal, 1995). Presumably this difference is a result of the tendency of African Americans to retain sodium. Sodium retention offered a selective survival advantage for slaves bought to America over the middle passage since hyponatremia was believed the major cause of mortality (Hildreth 8c Saunders, 1991). 

When Norbert was born, New Orleans was still a small town by modern standards. Its 8000 inhabitants included 4000 whites, 2700 slaves, and 1300 free African Americans, most of them of mixed racial heritage, like Norbert and his mother. Founded by the French 100 years earlier, the region had been under Spanish rule for 35 years before it was returned to France for sale to the United States in the Louisiana Purchase of 1803. New Orleans French past graced the town with an opera house, cafes, cabarets, Parisian fashions, French-language signs, and gardens with orange and lemon trees, roses, myrtle, and jasmine. 

As heirs to prime New Orleans real estate, a number of free African Americans became quite wealthy before the Civil War. Norbert Rillieux s cousins included members of some of New Orleans richest families. A few of his cousins were so confident of their social status and their ability to pass as white that they signed their names without the required term free man of color, or f.m.c. Many free people of color also invested heavily in slaves. When Norbert Rillieux was in his twenties, more than 700 of New Orleans free African Americans owned an average of three slaves apiece, often family members who were eventually freed. Each of the 23 richest free people of color in New Orleans owned between 10 and 20 slaves. 

Sugar soon became the cornerstone of the infamous triangular trade. New England sailing ships picked up molasses, a by-product of sugar refining, from the West Indies. Then they took it to New England to make rum, sold the rum to slave traders in Africa, and transported slaves back to the... 

Southern Louisiana became a one-crop region during Rillieux s youth. Sugar cane was expensive to grow, and its refining consumed enormous amounts of firewood and slave labor. Each plantation needed an animal-powered mill to crush the heavy canes and release their juices and a sugar-house to evaporate the syrup. 

Most important as far as Rillieux was concerned, the French were passionately debating their laws about slavery and the slave trade. For brief... 

Great fortunes could be made, and Norbert Rillieux was an ambitious, energetic man. Louisiana sugar growers were wealthier than any other group of Southerners before the Civil War. John Burnside, who started his career as a peddler with a backpack, owned one of the biggest plantation operations on record. His 7600 acres were as flat as a billiard table and worth 1.5 million his 937 slaves were valued at half a million more. 

Within a year of his return to Louisiana, Rillieux realized that he would have to finance his project himself or attract investors. During the next decade, he tried both. He convinced several planters to let him build and test his equipment in their sugarhouses, but each time his locally built machinery failed. He amassed an enormous fortune in land speculation and then lost it in a bank failure. At one point, he offered to spend 50,000 of his own money to build his system on the plantation of A. Durnford, a rich free man of color whose patron was the eccentric white founder of Liberia. Durnford refused the offer because he did not want to give up control of his people, i.e., his 75 slaves. 

Traveling around the state installing his machinery, Rillieux had to stay on slave-operated plantations. Like many free people of color, Rillieux may have regarded himself as the equal of the white ruling class, far above dark-skinned slaves. But in the antebellum South, Rillieux could not stay in the plantations mansions. Rumor had it that he stayed in slave quarters, but a firsthand observer reported that on Benjamin s plantation Rillieux was given a special house and slaves to serve him. 

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