What Does High Hemoglobin Mean? High hemoglobin levels mean that measured hemoglobin levels are above the upper limits of normal for the age and sex of the person (see above normal values). For example, a 19 year old that has a detected hemoglobin level of above 17.7 g/dl would have a high hemoglobin level.
Chemical engineers held about 33,300 jobs in 2012. Chemical engineers work mostly in offices or laboratories. They may spend time at industrial plants, refineries, and other locations, where they monitor or direct operations or solve onsite problems.
Nuclear engineers are at the forefront of researching and developing the processes used to obtain benefits from nuclear energy and radiation. Engineers in this subfield combine their knowledge of nuclear energy and expertise in nuclear reactions for design, research, development, and construction processes. Nuclear engineers work to find industrial uses for nuclear material for the development of spacecraft, ships, and agricultural equipment. Nuclear engineers also work to develop uses of radioactive materials for medical imaging devices, such as positron emission tomography (PET) scanners.