This means, that as expected one charge carrier inside the QD roughly depletes one charge carrier in the 2DEG if no free charges are surrounding the QDs.
Clearly, if the gas received no return of material from stars, it would be depleted in roughly 2 × 109 years, about one-sixth the present age of the Galaxy.
We refer to this as "supply-limited" weathering, in which fresh material is chemically depleted to roughly the same degree, regardless of its rate of supply from breakdown of rock.
All told, there were roughly 496,000 tons of depleted uranium in storage, according to the GAO, along with 1 million cubic feet of "uncharacterized waste".
The South Coast Air Quality Management District's board will consider a proposal this Saturday that will require SoCalGas to use better leak detection technology at the storage site called Aliso Canyon, which is made up of roughly 3,600 acres of former depleted oil fields.
They found that chimpanzees and humans depleted oocytes at roughly the same rate--but their oldest chimpanzee was only 47 years old.
As demonstrated by growth curve assays, the total number of control CD133+ cells increased roughly six or seven fold over five days, whereas CD133+ cells depleted of c-Myc did not increase or decreased in number (Figure 4).
The solar panel located on the back of the +ECO Clima Control juices up in roughly eight hours and will last up to three months before the battery is depleted.
Short birth intervals increase competition between siblings because multiple children need similar resources during roughly the same time period; in contrast, longer birth intervals allow parents to replenish depleted resource pools between births.
Social Security's retirement insurance program has a $2.6 trillion trust fund that will be depleted by 2035, with projected incoming payroll taxes at that point only enough to cover roughly 80percentt of scheduled benefits.
