Abstract:
An apparatus including a polymeric housing to enclose electrical and optical components of a lighting fixture; and an outer frame affixed to the housing, the outer frame including a coupler to mechanically attach the apparatus to another device.
Abstract:
An illumination device is provided. The illumination device includes a light emitting source, and a clamped series resonant converter operativeiy coupled to the light emitting source, where the clamped series resonant converter is configured to automatically regulate a load current generated by the clamped series resonant converter in response to a load voltage applied by the light emitting source.
Abstract:
A display apparatus and related approaches are provided that include an interface with an input and an output and a processor coupled thereto. The output is configured to display a first panel at a variable panel display portion of a display. The first panel includes one or more first selectable nodes associated with an industrial control system as well as information associated with the industrial control system. Additional panels may be presented that describe the hierarchical structure of the industrial control system which may also include selectable nodes and information associated with the industrial control system.
Abstract:
According to some embodiments, a composite light source includes at least one blue light source having a peak wavelength in the range of about 400 nanometer (nm) to about 460 nm; at least one silicate phosphor; at least one narrow red down-converter; and wherein the composite light source has a Lighting Preference Index (LPT) of at least 120. Numerous other aspects are provided.
Abstract:
A process for synthesizing a Mn 4+ doped phosphor is presented. The process includes contacting a source of Mn 4+ ions to a suspension comprising aqueous hydrofluoric acid and a complex fluoride compound of formula (II) A x [MF y ] in solid form, and then contacting a source of A + ions to the suspension to form the Mn 4+ doped phosphor, wherein, A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MF y ] ion; y is 5, 6 or 7.
Abstract:
A circuit is provided. The circuit includes a DC/DC converter 100 and a power factor correction apparatus. The DC/DC converter 100 is for converting a rectified line power into an output power. The DC/DC converter 100 includes a first inductor and a converting switch. The power factor correction apparatus includes a mode switching circuit and a switch controller. The mode switching circuit is for comparing a detected signal of the output power with a threshold signal and outputting a ZCD signal. The switch controller coupled with the mode switching circuit for driving the converting switch based on the ZCD signal. When the detected signal is beyond the threshold signal, first switch signal is generated. When the detected signal is not beyond the threshold signal, a second switch signal is generated.
Abstract translation:提供电路。 电路包括DC / DC转换器100和功率因数校正装置。 DC / DC转换器100用于将整流线路功率转换为输出功率。 DC / DC转换器100包括第一电感器和转换开关。 功率因数校正装置包括模式切换电路和开关控制器。 模式切换电路用于将输出功率的检测信号与阈值信号进行比较并输出ZCD信号。 开关控制器与模式切换电路耦合,用于基于ZCD信号驱动转换开关。 当检测到的信号超过阈值信号时,产生第一开关信号。 当检测到的信号不超过阈值信号时,产生第二开关信号。
Abstract:
An electrode for dosing oxygen into a metal halide lamp, wherein the electrode is at least partially oxidized, containing WO3 and/or MoO3, which supply oxygen during lamp operation in an amount effective to maintain a wall cleaning tungsten halogen chemical cycle. Use of the oxygen dosing electrode increases the lumen maintenance of the lamp to 80% or higher at 6000 hours. A method for making an oxidized electrode for use as an oxygen dispenser into the discharge vessel of a metal halide lamp is also provided, wherein the parts to be oxidized are exposed to an electrolyte contained in an electrochemical cell and a current is passed through the cell to from WO3 and/or MoO3.
Abstract:
A system includes an integrated vessel that extends along a longitudinal axis. The integrated vessel includes a gasifier portion and a syngas cooler portion. The syngas cooler portion is disposed axially adjacent to the gasifier portion along the longitudinal axis. The integrated vessel also includes platen tubes that extend from the syngas cooler portion into the gasifier portion. The platen tubes are configured to route coolant through the integrated vessel.
Abstract:
Imaging agents are described that comprise labeled substrates capable of being introduced into cells via the cystine/glutamate antiporter. The substrates may be used for imaging or detecting oxidative stress in cells by introducing the labeled agents into cells via the cystine/glutamate antiporter and subsequent detection.
Abstract:
A process for preparing a color stable Mn 4+ doped complex fluoride phosphor of formula (I) includes: A x (M (1-m) , Mn m ) F y ; contacting a first aqueous HF solution comprising (1-m) parts of a compound of formula H x MF y , and a second aqueous HF solution comprising m*n parts of a compound of formula A x [MnF y ], with a third aqueous HF solution comprising (1 -n) parts of the compound of formula A x [MnF y ] and a compound of formula A a X, to yield a precipitate comprising the color stable Mn 4+ doped complex fluoride phosphor; wherein A is Li, Na, K, Rb, Cs, NR 4 or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; R is H, lower alkyl, or a combination thereof; X is an anion; a is the absolute value of the charge of the X anion; x is the absolute value of the charge of the [MF y ] ion; y is 5, 6 or 7; 0