Double tube cold cathode fluorescent lamp with Φ 2.2mm outer diameter

Synchronous dimming control for a cold- cathode fluorescent lamp driver - Electronics Letters

lation is created of randomly transformed copies of the original DFG. A fitness is allocated to each member of the population. This is determined by calculating the supply voltage and effective capacitance of the DFG. Area requirements are computed for the adders, delays and multipliers. The total required area is used to estimate the effective capacitance. The GA selects a member of the popula...

Interpretation of Digital Chest Radiographs: Comparison of Light Emitting Diode versus Cold Cathode Fluorescent Lamp Backlit Monitors

OBJECTIVE To compare the diagnostic performance of light emitting diode (LED) backlight monitors and cold cathode fluorescent lamp (CCFL) monitors for the interpretation of digital chest radiographs. MATERIALS AND METHODS We selected 130 chest radiographs from health screening patients. The soft copy image data were randomly sorted and displayed on a 3.5 M LED (2560 × 1440 pixels) monitor and...

Microstructured Fibre Taper with Constant Outer Diameter

Tracheal diameter predicts double-lumen tube size: a method for selecting left double-lumen tubes.

T here are no objective criteria for selecting the size of a double-lumen endobronchial tube (DLT) (1). An inappropriately sized DLT can cause airway trauma and interfere with oxygenation and lung separation during one-lung ventilation. The goal of this study was to determine if measurement of tracheal diameter from the preoperative chest radiograph can be used to predict which size DLT to choo...

Distributed circuit model for cold cathode fluorescent lamps in back-light unit of liquid crystal display

This paper presents a distributed circuit model of the cold cathode fluorescent lamps (CCFLs) in the backlight units (BLUs) of liquid crystal displays (LCDs). This model consists of nonlinear resistors and parasitic circuit elements, and it can be used to simulate CCFL BLUs for various input waveforms using standard circuit simulators. The nonlinear resistors were modeled after the measured DC ...