Among ocean energy sources, OTEC is one of the continuously available renewable energy resources that could contribute to base-load power supply. The resource potential for OTEC is considered to be much larger than for other ocean energy forms [World Energy Council, 2000]. Up to 88,000 TWh /yr of power could be generated from OTEC without affecting the oceanâs thermal structure [Pelc and Fujita, 2002]. Systems may be either closed-cycle or open-cycle.
Messenger Plus! allows to export all its preferences and save them into a single file (.pld) on disk. The .pld file is a binary database container that uses Yuna Software's proprietary format to store the exported settings and preferences. Once saved, the .pld file can be imported to restore the Messenger Plus! settings to their previous state. PLD files saved by earlier versions of Messenger Plus! cannot be used with later versions.
Home / Treatment Options / Posterior Lumbar Fusion (PLF) Posterior Lumbar Fusion (PLF) Overview and Indications. Posterior Lumbar Fusion (PLF) is the general term used to describe the technique of surgically mending two (or more) lumbar spine bones together along the sides of the bone. Bone graft is placed along side the spine bones (not in between the disc spaces, which is called an interbody fusion), and ultimately fuses together. PLF may be performed in conjunction with or without a posterior decompression (laminectomy) and/or instrumentation (use of metal screws/rods). Typically, metal screws and rods are placed so as to impart immediate stability while the bone mends and to increase the fusion rate (percentage of patients where the bone successfully mends together).