摘要:
Heat in a stream of combustion products obtained from a glassmelting furnace heated by oxy-fuel combustion is passed to incoming glassmaking materials in a heat exchanger without requiring reduction of the temperature of the stream yet without causing softening of the glassmaking material.
摘要:
For the first time, an aluminum antimonide (AlSb) single crystal substrate is utilized to lattice-match to overlying semiconductor layers. The AlSb substrate establishes a new design and fabrication approach to construct high-speed, low-power electronic devices while establishing inter-device isolation. Such lattice matching between the substrate and overlying semiconductor layers minimizes the formation of defects, such as threaded dislocations, which can decrease the production yield and operational life-time of 6.1-Å family heterostructure devices.
摘要:
A method of recovering a clock signal from an optical signal received through an optical communications system. A digital sample stream is processed to generate a dispersion compensated signal. The dispersion compensated signal is then tapped to obtain upper side band and lower side band signals of each received polarization of the optical signal. The upper side band and lower side band signals are then processed to compensate polarization dependent impairments, and the clock recovered from the resulting optimized.
摘要:
A system for reliably and reproducibly exposing the contents of a biological cell to an analysis instrument comprising a sample handling unit that includes a first substrate with first substrate face and a second substrate with second substrate face. The first substrate face and the second substrate face are opposed. The biological cell is positioned between the first substrate face and the second substrate face. A framework with a mechanism for applying a range of pressures to the first substrate face and the second substrate face reliably and reproducibly exposes the contents of the biological cell to the analysis instrument.
摘要:
Bulk Aluminum Antimonide (AlSb)-based single crystal materials have been prepared for use as ambient (room) temperature X-ray and Gamma-ray radiation and alpha-particle detection.
摘要:
A multiple downcomer tray assembly for vapor liquid contact towers. The downcomers are constructed with support baffles enabling the downcomer tray to be supported therefrom. The support baffles include a generally centralized aperture formed therethrough. An active bridge is disposed between adjacent, end to end downcomers for equalization of liquid flow upon the tray.
摘要:
A method of recovering a clock signal from an optical signal received through an optical communications system. A digital sample stream is processed to generate a dispersion compensated signal. The dispersion compensated signal is then tapped to obtain upper side band and lower side, band signals of each received polarization of the optical signal. The upper side band sand lower side band signals are then processed to compensate polarization dependent impairments and the clock recovered from the resulting optimized.
摘要:
A carrier lock detector for a QPSK or 4-QAM system implements, a lock detection algorithm that maps detected signals onto one of first and second areas associated with nominal states defined by (I2⊕I3)·(Q2⊕Q3) and {overscore (Q1⊕Q2)}·(I1{overscore (I2I3)}+{overscore (I1)}I2I3)+({overscore (I1⊕I2)})·(Q1{overscore (Q2Q3)}+{overscore (Q1)}Q2Q3), or alternatively, by ({overscore (I1⊕I2)}·{overscore (Q2⊕Q3)})+({overscore (Q1⊕Q2)}·{overscore (I2⊕I3)}), respectively. When detected signals map onto one of the first areas, a first signal is generated. When detected signals map onto one of the second areas, a second signal is generated. When a difference between the first and second signals exceeds a threshold, a carrier lock detection signal is generated to enable a decoder. The carrier lock detector is able to detect carrier lock at a raw BER of 1e-2 or greater at a very low signal-to-noise ratio.
摘要翻译:用于QPSK或4-QAM系统的载波锁定检测器实现了一种锁定检测算法,该检测算法将检测到的信号映射到与由(I 2 / (Q 2)⊕Q3 3)和(超core SUB SUB SUB SUB⊕SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB >)}。(I 1 SUB> {overscore(I 2 SUB> 3 SUB>}} )}({overscore(I< 1< 1< 2> 2>}})( Q (过大的(Q 2)3 Q 3)} + {overscore(Q 1> 1 S>)} Q “1”>“3”)})。 当检测到的信号映射到第一区域之一时,产生第一信号。 当检测到的信号映射到第二区域之一时,产生第二信号。 当第一和第二信号之间的差异超过阈值时,产生载波锁定检测信号以使能解码器。 载波锁定检测器能够以非常低的信噪比以1e-2或更大的原始BER检测载波锁定。
摘要:
A method of and apparatus for deentrainment and mass transfer in a chemical process tower. The apparatus comprises a structured packing layer assembled with a second type of packing layer disposed adjacent the underside of a process tower tray. The dual layer assembly reduces liquid entrainment in ascending vapor flow and provides an additional region for mass transfer.
摘要:
A downcomer-tray assembly for vapor liquid contact towers with enlarged effective active areas. The downcomers are constructed with support baffles enabling intermediate areas of the downcomer-tray to be supported therefrom and outer areas of the downcomer-tray to be supported by an active tower support ring. An active bridge may be used between end-to-end downcomers for maximizing the active area of the associated tray.