Fluorescent lamps

Part 2 book "Switching power supply design" includes content: Bipolar power transistor base drive circuits, mosfet and igbt power transistors and gate drive requirements, magnetic amplifier postregulators, analysis of turn on and turn off switching losses and the design of load line shaping snubber circuits, feedback loop stabilization, resonant converters, typical waveforms for switching power supplies, power factor and power factor correction, electronic ballasts - high frequency power regulators for fluorescent lamps,... and other contents.

419p dianmotminh00 22-04-2024 5 2   Download

Bài giảng Kỹ thuật chiếu sáng dân dụng và công nghiệp - Các loại nguồn sáng, cung cấp cho người học những kiến thức như phân loại bóng đèn; đèn nung sáng (incandescent lamps); đèn halogen-volfram (tungsten-halogen lamps); đèn huỳnh quang (fluorescent lamps); đèn huỳnh quang compact (compact fluorescent lamps);...Mời các bạn cùng tham khảo!

134p hoai7538 21-04-2024 7 2   Download

This paper is an attempt to survey the benefits of a well-designed photoreactor containing just 6 ultraviolet (UV) high power light emitting diodes (HPLEDs); the power and wavelength of each UV HPLED are 1 W and 365 nm, respectively, the latter being an efficient source for photocatalytic studies.

6p viberbers 09-08-2023 7 3   Download

Vemurafenib, a selective inhibitor of genetically activated BRAF, is registered for unresectable stage III and stage IV melanomas harboring a BRAF mutation. Photosensitivity related to exposure to sunlight is a common side-effect. We here present three cases of indoor-photosensitivity due to fluorescent lamps, whilst undergoing treatment with vemurafenib.

4p vialabama2711 21-09-2020 4 0   Download

In addition, the effects of explant age and lighting condition on shoot regeneration were also investigated. After 8 weeks of culture, the results showed that shoot regeneration rate (100%) and shoot multiplication coefficient (13.33) of the in vitro leaf-tTCL-4 were higher than those of other treatments and control. The shoot regeneration rate of P. edulis Sims. also varied with the change of explant age. The highest shoot regeneration rate (100%) was obtained from leaf explants of 1.5-month-old shoots after 8 weeks of culture.

9p nguyenxuankha_bevandan 14-08-2020 16 2   Download

Salmonellosis is one of the most common causal food borne disease in India. An in-house loop-mediated isothermal amplification (LAMP) reaction was established and evaluated for sensitivity and specificity in detecting the presence of Salmonella spp. isolates in foods of animal origin from Mumbai, India. The aim of this study was to develop in-house LAMP for simple and inexpensive detection of Salmonella spp. in animal origin foods using specifically designed primers targeting invA gene contains sequences unique to this genus. The reaction was optimized using genomic DNA of S.

10p angicungduoc6 20-07-2020 23 1   Download

The utilization of bis(isonicotinic acid)phthalocyaninatocobalt (II) [CoPc(isa)2] incorporated on TiO2 has been studied as a photocatalyst to degrade benzene vapor under fluorescent lamp (indoor light) conditions.

6p tocectocec 26-05-2020 15 0   Download

This research focuses on the extraction of REEs using PC88A in kerosene from acid leach solution obtained from leaching of fluorescent for the efficient recycling of fluorescent lamps in Viet Nam.

7p abcxyz123_02 03-03-2020 15 1   Download

The most numerous external power supplies were among computer speakers, LCD monitors, fluorescent desk lamps (whose PIPS included a magnetic ballast), powered phones (including conference and speaker phones), laptop and PDA docking stations. The highest percentage of units with external power supplies were among powered phones, fluorescent desk lamps, laptop and PDA docking stations. ILPSs were prevalent among LCD monitors and laptop docking stations, while PIPSs prevailed among computer speakers, ...

63p dacotaikhoan 25-04-2013 53 6   Download

Lighting Controller 1. Dimming control of fluorescent lamps, mercury lamps and metal halide lamps. • More than 40% electric power saving compared with NO MERS systems. 2. Replace mercury lamp with metal halide lamp with MERS metal halide controller. • Approx. 40% electric power saving compared with NO MERS mercury lamp systems. (from Titech experiment) 3. Intelligent dimming control of lamps with MERS, sensors and Constraint Technology. • Significant saving can be expected compared with existing systems according to QOS....

12p tvq_pro 03-11-2012 71 9   Download

Waste incinerators fall somewhere between the two categories of incidental and deliberate emissions. Similar to a coal plant, they burn a feedstock — in this case garbage — and mercury is released as an incidental emission. The difference is that most of the incidental emissions from waste incinerators are a result of mercury that is deliberately put into products. These may include fluorescent lamps, old batteries, dental office waste, electrical switches or thermostats.

55p yeurauxanh88 01-10-2012 64 2   Download

In later eras, new materials have been closely associated with radical change. The development of paper was as important as the printing press in revolutionising communications. The introduction of gunpowder into Europe transformed warfare. In more modern times, gas lighting only became demonstrably superior to oil and candles with the introduction of the gas mantle, composed of novel materials such as thorium and cerium oxides. A hundred years ago electric filament lamps were made possible by other novel and fairly unusual materials, osmium and tungsten.

0p yeurauxanh88 28-09-2012 65 5   Download

Red or Painful Eye Corneal Abrasions These are seen best by placing a drop of fluorescein in the eye and looking with the slit lamp using a cobalt-blue light. A penlight with a blue filter will suffice if no slit lamp is available. Damage to the corneal epithelium is revealed by yellow fluorescence of the exposed basement membrane underlying the epithelium. It is important to check for foreign bodies. To search the conjunctival fornices, the lower lid should be pulled down and the upper lid everted.

5p ongxaemnumber1 29-11-2010 101 6   Download