Abstract:
The present invention presents designs for high extinction quenched “dyedrons” that can be activated by conversion of a single acceptor/quencher in the molecular assembly to a fluorescent state. The quencher is activated by noncovalent binding to a unique complementary expressible fluorogen activating peptide (FAP). In this way, the quencher serves as the homogeneous switch, receiving energy efficiently from each of the donor molecules of the dendronic antenna, and releasing it as fluorescence only when activated by binding. The sum of the extinction of the multiple dyes on the antenna will provide dramatic enhancements in the effective brightness of the probe in standard imaging systems. This approach provides a set of probes with exceptional brightness, specifically targeted to an expressed tag that activates the fluorescence of the dyedron.
Abstract:
A methanol synthesis process includes reacting a process gas containing hydrogen, carbon dioxide and carbon monoxide over a catalyst including shaped units formed from a reduced and passivated catalyst powder the powder including copper in the range 10-80% by weight, zinc oxide in the range 20-90% by weight, alumina in the range 5-60% by weight and optionally one or more oxidic promoter compounds selected from compounds of Mg, Cr, Mn, V, Ti, Zr, Ta, Mo, W, Si and rare earths in the range 0.01-10% by weight, to form a product gas, and condensing methanol, water and oxygenate by-products therefrom, wherein the total oxygenate by-product level in the condensate is below 500 ppm.
Abstract:
A catalyst unit is described in the form of a cylinder having a length C and diameter D, which has two or more flutes running along its length, wherein said cylinder has domed ends of lengths A and B, such that (A+B+C)/D is in the range 0.50 to 2.00, and (A+B)/C is in the range 0.40 to 5.00. The catalyst may be used particularly in reactions where hydrogen is a reactant such as hydroprocessing, hydrogenation, water-gas shift reactions, methanation, hydrocarbon synthesis by the Fischer-Tropsch reaction, methanol synthesis and ammonia synthesis.
Abstract translation:催化剂单元以具有长度C和直径D的圆柱体的形式描述,其具有沿其长度延伸的两个或更多个凹槽,其中所述圆筒具有长度为A和B的圆顶端,使得(A + B + C )/ D在0.50〜2.00的范围内,(A + B)/ C在0.40〜5.00的范围内。 催化剂可以特别用于其中氢是反应物的反应,例如加氢处理,氢化,水煤气变换反应,甲烷化,通过费 - 托反应的烃合成,甲醇合成和氨合成。
Abstract:
A method for selecting antenna configurations in a satellite receiving system, the method comprising: selecting antenna configurations using a first mode of operation wherein frequency shift keying (“FSK”) of a frequency is implemented, or a second mode of operation wherein a DC level is implemented, and adaptively controlling a capacitor to condition a signal while the second mode is in use and removing the effects of the capacitor while the first mode is in use.
Abstract:
A method of operation of a non-volatile memory management system includes: selecting a specific time period by a unit controller; establishing a first time pool having super blocks written during the specific time period; and promoting to a second time pool, the super blocks from the first time pool, at the lapse of the specific time period.
Abstract:
A method of processing an LNB power supply output signal comprising providing an LNB selection signal to select a first of the plurality of LNB signals as the input signal, superimposing a tone onto the LNB selection signal to select a second of the plurality of LNB signals as the input signal, providing a first transponder selection voltage to select a first set of transponders within the input signal, providing a second transponder selection voltage to select a second set of transponders within the input signal, and activating an adaptive load to preserve the tone if the second of the plurality of LNB signals is selected.
Abstract:
An architecture for protecting circuitry used for signal communications between a frequency translation module and a decoder from transient voltage surges. According to an exemplary embodiment, the apparatus comprises a first signal path between a transmission line and a first reference potential for conducting negative voltage surges between said transmission line and said first reference potential, comprising a first diode and a first clamping diode, wherein a second reference potential is coupled to a junction of the first diode and the first clamping diode, and a second signal path between the transmission line and the first reference potential, comprising a second diode and a second clamping diode for conducting positive voltage surges between said transmission line and said first reference potential, wherein a second reference potential is coupled to a junction of the second diode and the second clamping diode.
Abstract:
A two level current limiting power supply system is capable of reducing thermal stress during current overload conditions. According to an exemplary embodiment, the power supply system includes a measurement device for measuring a current supplied to a load, and a processor for disabling the current to the load for a first disable period if the current exceeds a first threshold for a first test period, and for disabling the current to the load for a second disable period if the current exceeds a second threshold for a second test period.
Abstract:
The present invention relates to system diagnostic circuitry for antenna systems with active antenna components. More specifically, the present invention discloses an apparatus comprising a connection between an antenna and a power supply conducting a first DC voltage, a source of a pulse width modulated signal, a lowpass filter for converting the pulse width modulated signal to a second DC voltage, and a comparator for comparing the first DC voltage and the second DC voltage and generating an output signal responsive to the difference between the first DC voltage and the second DC voltage.