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Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. [1] " Nominal" refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe" consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside ...
Since the outside diameter is fixed for a given pipe size, the inside diameter will vary depending on the wall thickness of the pipe. For example, 2" Schedule 80 pipe has thicker walls and therefore a smaller inside diameter than 2" Schedule 40 pipe. Steel pipe has been produced for about 150 years.
A daily schedule is usually ordered chronologically, which means the first employees working that day are listed at the top, followed by the employee who comes in next, etc. A weekly or monthly schedule is usually ordered alphabetically, employees being listed on the left hand side of a grid, with the days of the week on the top of the grid.
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The evidence for harm to people who are deprived of sleep, or work irregular hours, is robust. Research from Europe and the United States on nonstandard work hours and sleep deprivation found that late-hour workers are subject to higher risks of gastrointestinal disorders, cardiovascular disease, breast cancer, miscarriage, preterm birth, and low birth weight of their newborns.
On the 2-2-4 schedule, firefighters work two 10-hour days, two 14-hour nights, and then have four days off. This schedule's long break aligns with the conventional weekend for exactly two weeks out of eight. The majority of Australian fire brigades use this schedule (which is locally referred to as the '10/14' or '4 on, 4 off' roster) [15]
What is the 80/20 rule? The diet plan can be a smart way to lose weight, eat a balanced diet and boost your health. But a dietitian warns against developing a cheat day mentality.
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