Current profile control by ac magnetic helicity injection is computationally investigated in a reversed field pinch ~RFP!. Three-dimensional resistive magnetohydrodynamics ~MHD! computation is employed to study the nonlinear MHD. During ac helicity injection, when toroidal and poloidal surface voltages are oscillated out of phase, the parallel electric field is maintained positive over a majori...

One of the most promising applications of rapid freeze prototyping (RFP) is making metal parts by investment casting with the built ice parts. The integration of RFP and investment casting allows fast creation of complex net-shape metal parts directly from their CAD models. The advantages of doing so include no part geometric complexity limitation, no experience of parting line design and assem...

Developing efficient and stable transgene expression in mammalian cells is an important challenge that has many applications in biotechnology and medicine. However, progress towards such expression has been hampered by various phenomena that result in silencing of transgenes. An expression system utilizing a bacterial artificial chromosome (BAC), called TG-EMBED, has been developed in an attemp...

The Request For Proposal (RFP) process can be agile and efficient. At a high level, the key to achieving this is to specify requirements just in time and containing just enough detail. This paper applies the following XP practices and concepts to the RFP process: acceptance tests, business value, iterative & incremental delivery, onsite customer, pair development, planning game, spike, story, v...

Abstract Background The third-generation hybrid rice technology can be constructed by transforming a recessive nuclear male sterile (NMS) mutant with transgenic cassette containing three functional modules: the wild type fertility gene to restore of mutant, pollen killer that specifically kills grains carrying transgene, and red fluorescence protein ( RFP ) mark seed (maintainer). plant produce...

Robotic fiber positioner (RFP) arrays are becoming heavily adopted in wide field massively multiplexed spectroscopic survey instruments. RFP decrease nightly operational overheads through rapid reconfiguration between fields and exposures. In comparison to similar instruments, SDSS-V has selected a very dense packing scheme where any point is typically accessible three or more robots. This desi...

Genetically altered or tagged Vibrio fischeri strains can be observed in association with their mutualistic host Euprymna scolopes, providing powerful experimental approaches for studying this symbiosis. Two limitations to such in situ analyses are the lack of suitably stable plasmids and the need for a fluorescent tag that can be used in tandem with green fluorescent protein (GFP). Vectors pre...