December 2015 | AIChE

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December 2015

AIChE’s Initial Placement Survey: Where is the Class of 2015?

December
2015
Every year, a new class of chemical engineers enters the job market. Some choose to work in the industrial sector, developing new materials and manufacturing processes for a wide range of applications; some elect a government job, and others take...

A Not-So-Noble Material Catalyzes Oxidation at Low Temperatures

December
2015
Catalysts have revolutionized the petroleum industry, enabling the efficient production of a wide range of petrochemicals. Breaking carbon-hydrogen bonds as is required to produce chemicals from petroleum, however, often involves expensive noble-...
December
2015
A patent is intended to expand the public’s knowledge in a particular area of technology, and it must clearly convey exactly what the patent covers and what it does not. An individual learns that information by reading the patent’s claims, a...
December
2015
Even though the election of a new U.S. President is almost a year away, it’s hard to ignore the news media’s extensive coverage of the many candidates — their debates, their campaign speeches, their experience; almost anything they do or say is fair...
December
2015
Silk is a lustrous, protein-based fiber that gives textiles their luxurious appearance and medical sutures their strength. Nearly all commercially available silk is produced on silkworm farms through a process that has been around for thousands of...
December
2015
If you are interviewing for a new job, there is a good chance that at least your first interview will be conducted by phone or using online videoconferencing software, such as Skype. These methods are both convenient and cost-effective for the...
December
2015
The goal of bioprocessing is to optimize natural or artificial biological systems by manipulating prokaryotic and eukaryotic cells and their environment to produce biopharmaceutical products. A bioprocess is divided into upstream and downstream operations. Upstream processing encompasses the steps from preliminary unmodified cell line culture to the mature modified cell culture and harvest; downstream processing includes the separation and purification of the biologics from the mature activated cell culture. These operations have typically been performed as batch processes.
December
2015
December
2015
Perfusion technology offers many benefits over fed-batch processing, such as reducing the size of the bioreactor, which reduces capital costs and enables the use of single-use bioreactor technology. Despite these advantages, a shift to continuous perfusion will likely be gradual.
December
2015