Abstract: A system for digitally demodulating optical hydrophone signals is provided. The system includes an optical hydrophone connected to an analog-to-digital converter and further connected to a digital signal processor. Within the digital signal processor, a demodulator is calibrated by a preferred automatic calibration circuit such that mixer frequencies are coherently mixed with the incoming acoustic signals received by the hydrophone. The automatic calibration circuit preferably determines an extreme case of phase offset by following a programmable routine including a series of tests. After the extreme case is detected, the precise phase calibration is known and provided to the demodulator mixer tables. The automatic calibration circuit can be utilized for automatic calibrations of multisensor systems containing large numbers of hydrophones.

Abstract: A system for digitally demodulating optical hydrophone signals is provided. The system includes an optical hydrophone connected to an analog-to-digital converter and further connected to a digital signal processor. Within the digital signal processor, a demodulator is calibrated by a preferred automatic calibration circuit such that mixer frequencies are coherently mixed with the incoming acoustic signals received by the hydrophone. The automatic calibration circuit preferably determines an extreme case of phase offset by following a programmable routine including a series of tests. After the extreme case is detected, the precise phase calibration is known and provided to the demodulator mixer tables. The automatic calibration circuit can be utilized for automatic calibrations of multisensor systems containing large numbers of hydrophones.

Abstract: A new cultivar of Sedum plant named ‘Razzleberry’ characterized by its very compact plant habit with stems that do not flop, its size of about 22 cm (9 inches) in height and 46 cm (18 inches) in spread, its very large inflorescences up to 22 cm (9 inches) in diameter, its flowers that are dark raspberry red in color, its foliage that emerges gray-blue in spring and turns to dark purple-black in mid summer, its very early blooming season, and its resistance to Sedum foliage blight.

Abstract: A new cultivar of Sedum plant named ‘Cherry Tart’ characterized by its foliage that is red in color with the red coloration retained without fading in spring, summer and fall, its leaves that are thick, ovate in shape, and with only slightly serrated, its production of 30 to 40 crowns the first year after vernalization, its numerous large inflorescences with flowers that are dark pink in color.

Abstract: A new cultivar of Sedum plant named ‘Lime Zinger’ characterized by its lime-green leaves with red picotee margins with the coloration retained for 7 months during the growing season, its production of 30 to 40 crowns the first year after vernalization, its heavy self-branching habit without being pinched, its numerous large (10 cm in diameter) inflorescences with flowers that are pink in color, and its disease free foliage.

Abstract: A new cultivar of Sedum plant named ‘Firecracker’ that is characterized by its very shiny foliage that is deep cherry-red in color with the color retained in spring, summer and fall, its very heavy branching with the stems forming a mounded plant habit with no opening in the center or flopping of stems, its large pink flower heads, its very heavy vegetative bud production during winter dormancy, and its high resistance to Sedum foliage blight.

Abstract: A new cultivar of Sedum plant named ‘Lime Twister’ characterized by its spreading mound, ground-cover plant habit, its thumbnail-sized leaves that are lime-green in color with wide cream-white colored margins, its green and white variegated leaves with red picotee margins during cool spring and fall weather, its well-branched and vigorous growth habit; producing numerous lateral branches and growth crowns on a single plant, its fast and easy rooting; forming roots in 15 days, which is unusually fast for other variegated Sedum cultivars, and its persistent vigorous growth and colorful foliage lasting from early spring through the hot summer months with over 16 weeks of colorful variegated foliage.

Abstract: A new cultivar of ×Sedoro plant named ‘Blue Elf’ characterized by its compact, non-flopping, mound-forming, low-growing groundcover plant habit, its compact and dense clusters of flowers that cover almost the entire plant surface (95%) in late summer, its numerous clusters of flowers that are hot pink in color in late summer, its foliage that is powder-blue in color during spring and early summer and becoming lightly suffused with rose-pink in mid-summer to fall, its heavy self-branching without pinching from early spring through mid-summer, its numerous lateral branches that elongate away from the central stem, and its inflorescences that have a strong sweet fragrance.

Abstract: A new cultivar of Sedum plant named ‘Jade Tuffet’ characterized by its very compact and mounded plant habit reaching about 38 cm in height, its foliage that is 70% smaller and narrower than is typical with similar sized sedum plants, its very heavy basal branching, its foliage that emerges in spring shiny green and turns reddish green during the summer months when grown under intense sun, its very large inflorescences of medium pink flowers that appear in late summer and completely surround the mound of foliage, its bright cherry red stems, and its very high resistance to foliage blight and powdery mildew.

Abstract: A new cultivar of Sempervivum plant named ‘Gold Nugget’ characterized by its unique foliage coloration throughout the growing seasons; spring coloration is golden green with dark red margins (picotee), summer coloration is lime green without red margins, fall coloration is golden yellow with dark red leaf margins, winter coloration is red, its very vigorous growth habit, its plant height up to 7.6 cm and a plant width of 13 cm, and by its hardiness in at least U.S.D.A. Zones 4 to 9.

Abstract: A new cultivar of Sedum plant named ‘Wildfire’ characterized by its variegated foliage that emerges with a tri-color look of green, pink and yellow in the spring and turns bright shiny cherry red in color with bright orange-pink margins as it matures in full sun with color retention throughout the entire growing season, its heavy branching with branches from every leaf node along the stems producing a mounded groundcover-type plant habit with no open centers and that does not flop in the summer, and its large inflorescences that are pink in color and appear in late summer.

Abstract: A new cultivar of Sedum plant named ‘Plum Dazzled’ that is characterized by its very compact plant habit with stems that do not flop, it reaches about 23 cm (9 inches) in height and 46 cm (18 inches) in spread, its foliage that emerges medium gray-blue in spring and turns to very dark purple-black in mid summer, its flowers that are raspberry pink in color, and its high resistance to Sedum foliage blight and powdery mildew.

Abstract: A new cultivar of Delosperma plant named ‘Saucy Strawberry’ that is characterized by its floriferous blooming habit, its cherry red flowers, its very compact and tight mounds of foliage that do not become long or leggy during the summer growing months, its strong re-blooming habit during the entire growing season and into late fall, its small plant size, its uniform rooting habit, and its uniform blooming period with other plants in the series.

Abstract: A new cultivar of Sedum plant named ‘Dream Dazzler’ that is characterized by its very compact plant habit with stems that do not flop, its plant size that reaches about 23 cm (9 inches) in height and 46 cm (18 inches) in spread, its unique variegated foliage colors; under full sun exposure leaves are dark purple with hot pink margins, under part sun exposure leaves are light purple with hot pink margins, under shade conditions leaves are blue-green with white and pink margins, and its resistance to Sedum foliage blight and powdery mildew.

Abstract: A new cultivar of Delosperma plant named ‘Fig Fusion’ that is characterized by that is characterized by its floriferous blooming habit, its hot pink flowers, its very compact and tight mounds of foliage that do not become long or leggy during the summer growing months, its strong re-blooming habit during the entire growing season and into late fall, its small plant size, its uniform rooting habit, and its uniform blooming period with other plants in the series.

Abstract: A new cultivar of Delosperma plant named ‘Coconut Crush’ that is characterized by its floriferous blooming habit, its white flowers, its very compact and tight mounds of foliage that do not become long or leggy during the summer growing months, its strong re-blooming habit during the entire growing season and into late fall, its small plant size, its uniform rooting habit, and its uniform blooming period with other plants in the series.

Abstract: A new cultivar of Delosperma plant named ‘Tangerine Tango’ that is characterized by its floriferous blooming habit, its red-orange flowers with white centers, its very compact and tight mounds of foliage that do not become long or leggy during the summer growing months, its strong re-blooming habit during the entire growing season and into late fall, its small plant size, its uniform rooting habit, and its uniform blooming period with other plants in the series.

Abstract: A new cultivar of Delosperma plant named ‘Pumpkin Perfection’ that is characterized by its floriferous blooming habit, its orange flowers with white centers, its very compact and tight mounds of foliage that do not become long or leggy during the summer growing months, its strong re-blooming habit during the entire growing season and into late fall, its small plant size, its uniform rooting habit, and its uniform blooming period with other plants in the series.

Abstract: A new cultivar of Delosperma plant named ‘Banana Blast’ that is characterized by its floriferous blooming habit, its yellow flowers with white centers, its very compact and tight mounds of foliage that do not become long or leggy during the summer growing months, its strong re-blooming habit during the entire growing season and into late fall, its small plant size, its uniform rooting habit, and its uniform blooming period with other plants in the series.

Abstract: A new cultivar of Sedum plant named ‘Angelina's Teacup’ that is characterized by its very tight and compact plant habit that continues to be compact into winter without the use of plant growth regulators or mechanical pinching, its non-flowering habit, its heavy lateral branching, its bright gold foliage that retains its coloration into fall, and its compact and tight plant habit.