Synchronizing redundant power oscillators

Outputs of oscillators are synchronized by summing the power transformer phase voltages, the summed voltages are applied to the frequency determining inductors of the individual voltage-controlled power oscillators. The beat frequency is eliminated when synchronization is achieved

A program of research and development of low input voltage conversion and regulation Quarterly report, 15 Dec. 1965 - 14 Mar. 1966

Synchronization of redundant low input voltage conversion and regulation systems for use with satellite energy conversion source

A program of research and development of low input voltage conversion and regulation First quarterly report, 14 Jun. - 14 Sep. 1965

Switching and circuit studies for development of low input voltage converter and regulato

Low voltage dc to dc converter-regulator with minimum external magnetic field disturbance final report, 1 jun. 1954 - 30 jun. 1965

Engineering developments for low voltage dc to dc converter-regulator with minimum external magnetic field disturbanc

Development of multiple source - multiple low voltage converter-regulator power supply with automatic failure sensing and redundant switching Final report, 30 Jun. 1966 - 30 Jul. 1967

Development of failure sensing switching circuitry for electrical power system reliability during extended space mission

Frequency of Counseling Sessions and Weight Loss Maintenance in a Commercial Lifestyle-Based Weight Management Program

Widespread overweight and obesity persist in the United States, and while many effective methods of weight loss have been developed, long-term weight loss maintenance (WLM) remains a challenge. Evidence strongly indicates that ongoing personalized support can effectively promote sustained WLM; however, the optimal frequency of supportive contact has yet to be investigated. This study retrospectively analyzed clinical records from a commercial lifestyle-based weight management program offering personalized WLM counseling. The unique element of this program was participants’ ability to select how often to contact their WLM counselor. Following weight loss, participants enrolled in the program\u27s 12-month weight maintenance phase. The question under investigation was whether there was an association between frequency of counseling sessions during maintenance and participants\u27 overall WLM success. After 12 months, participants who completed the program successfully sustained an average 11% net weight loss. However, no significant relationship was observed between total number of counseling sessions and percent body weight change during maintenance, indicating that other factors may play a role in participant decisions about when to contact their counselor and in their ability to sustain lost weight. Additional research is warranted in the areas of contact frequency, reasons for attrition, and additional factors mediating counseling support and WLM

ANTIOXIDANT AND ANTI-INFLAMMATORY PROPERTIES OF PTEROSPERMUM RUBIGINOSUM HEYNE EX WIGHT AND ARN AND PTEROSPERMUM RETICULATUM WIGHT AND ARN (STERCULIACEAE): AN IN VITRO COMPARATIVE STUDY

Objectives: Plants from the family Sterculiaceae are used as folk medicine for treating various diseases in India. This study aims to determine the antioxidant and anti-inflammatory properties of Pterospermum rubiginosum and Pterospermum reticulatum of the family Sterculiaceae. The barks of P. rubiginosum and P. reticulatum are used in traditional medicine especially in the treatment of wounds, sprains, bone fracture, etc. This study, we compare the antioxidant and anti-inflammatory potentials of the stem bark of these two plants. Methods: The free radical scavenging assays such as 2,2–diphenyl,1–picrylhydrazyl (DPPH), 2,2’–azino-bis(3-ethylbenzothiozoline-6-sulfonic acid) (ABTS), hydroxyl radical, nitric oxide radical, phosphormolybdenum assay, and reducing power assay are used for the measurement of antioxidant potentials. The in vitro anti-inflammatory activities of the extracts are evaluated by means of lipoxygenase (LOX) and protease inhibition. Results: Both P. rubiginosum and P. reticulatum scavenge DPPH (70.10% and 91.02%), ABTS (94.48 and 98.19%), hydroxy (76.02 and 87.67%), and nitric oxide (87.02 and 80.84%) radicals. Phosphomolybdenum assay and reducing power assay, used for the measurement of antioxidant potentials also showed good results. Regarding the anti-inflammatory potential, the methanolic extract of the plants shows anti-protease activity (51.29 and 64.93%) and anti-LOX activity (56%) while P. rubiginosum does not exhibit anti-LOX activity. Conclusion: The above results demonstrate that the plants P. rubiginosum and P. reticulatum are rich source of antioxidant and anti-inflammatory compounds and it is the first report on theantioxidant and anti-inflammatory properties of the barks of these plants

A program of research and development of low input voltage conversion and regulation Final report, 14 Jun. 1965 - 14 Jul. 1966

Techniques and hardware for low input voltage converter-regulator syste

Low voltage dc to dc converter-regulator with minimum external magnetic field disturbance third quarterly progress report, 1 dec. 1964 - 28 feb. 1965

Low voltage dc to dc converter regulator with minimum external magnetic field disturbance - choke cell assembly and magnetic disturbance mapping of choke cell and coaxial converte