Electric Power Supplies (Power Supply)

09/01/2023 - "The results show an improved performance of the proposed arc welding power supply over the commercial counterpart, with higher efficiency and power factor, as well as lower energy consumption. "
09/01/2023 - "Remarkably, it was observed that the ductility of the welded plates using pulsed modes with the proposed power supply outperforms those of the reference weld carried out with dc arc using the commercial welder."
09/01/2023 - "The arc welding power supply is based on resonant power converters and an FPGA-based control circuit. "
09/01/2023 - "This paper presents the characterization of a TIG welding process carried out by means of an arc welding power supply able to provide dc or pulsed current. "
11/22/2022 - "The equipment necessary to carry out the process is described, including the construction of the reactor and the power source of a very simple design necessary to generate a high-voltage arc discharge between the electrodes. "

09/01/1996 - "The major problems encountered were of respiratory failure, improved by device repositioning in the calf; decreased blood inflow to the device that was improved by cannula redesign; circuit board fracture corrected by design modification; and a power supply problem that was limited to a single unit. "

05/07/2015 - "Thus, we propose that PTT based on PPy-NPs as photothermal agents and a 915 nm NIR laser as a power source can serve as a new effective treatment for reducing inflammation and stenosis formation in inflamed arteries after endovascular management. "

05/07/2015 - "Thus, we propose that PTT based on PPy-NPs as photothermal agents and a 915 nm NIR laser as a power source can serve as a new effective treatment for reducing inflammation and stenosis formation in inflamed arteries after endovascular management. "

01/01/2023 - "Study subjects wore the external power source continuously and found it comfortable, and the system provided significant pain relief. "
04/01/1979 - "A radiant heat algometer system is described which enables the psychophysical and clinical study of cutaneous pain sensations and reactions by means of a precise, stabilized power source. "
12/01/1979 - "A questionnaire study revealed that 38.7% of 6,272 electric power supply workers were suffering from low-back pain, including severe pain resulting in frequent absenteeism or requiring occasional rest from work. "
07/01/2007 - "Pain associated with cancer is often under treated especially in the developing countries where there are problems of poor economy, poor purchasing power of the citizens, absence of effective national health insurance schemes, poor manpower, fake adulterated and expired drugs, poor drug storage conditions; adverse temperature conditions combined with poor power supply which may affect drug efficacy. "
12/01/1976 - "The high incidence of low-back pain, in particular gradually developing pain, among workers in electric power supply work has been suggested to be the result of quick and intensified work to meet increasing supply demand. "