摘要:
The present invention provides a system (300-400), apparatus (300-400), and method for an energy-based antenna selection technique in which the antenna that observes the largest SNR averaged over all carriers per sub-band (405) is selected for space-time coded MB-OFDM systems. Due to the frequency-selective nature of the system, different sub-band may have different channel gaining effect from the multi-path channels. We can perform energy-based antenna selection per sub-band, and the simulation results show that the proposed technique works not only for MB-OFDM UWB channels with shadowing, but also for the same channel without shadowing.
摘要:
This invention provides a device and a method for THz imaging to obtain real 3D image of sample and achieve high resolution, by combining THz technology and amplitude-division interference technology.
摘要:
The present discloses a method and a device for biogenic waste, or bio-waste treatment, and said method is as follows: Firstly, the biogenic waste is evenly mixed with water vapor, or steam, heating and pressurizing so that the temperature reaches 130-190° C. and the pressure reaches 1.5-1.9 MPa after mixture, and this state is maintained for 1-25 minutes; Then, the pressure of the mixture of said biogenic waste and water vapor is reduced to normal pressure, such as atmospheric pressure so as to conduct low-molecularization, such as decreasing or reduction of molecular weight of the biogenic waste to obtain a low-molecularized mixture, such as a low molecular weight mixture; finally, the low-molecularized mixture, such as low-molecular weight mixture is separated so as to obtain the final products. Said device includes reaction vessel, stirring device, vapor input device, pressure-reducing regulator and separation device.
摘要:
The invention relates to a recombinant protein used for immunoprophylaxis of human Helicobacter pylori infection and a degradable slow-releasing microsphere-encapsulated oral vaccine preparation prepared from the same, and the preparation method thereof. Said recombinant protein is composed of A2 subunit and B subunit of the LT of enterotoxigenic Escherichia coli and urease B subunit. The vaccine provided in the invention used in human Helicobacter pylori infection is safe and effective and convenient for oral intake.
摘要:
In one aspect of the present invention, a battery system is disclosed. In one embodiment, the battery system includes a metal oxygen battery (MOB) having a first electrode and second electrode. The second electrode includes a metal material. The battery system also includes an oxygen storage material disposed within the metal oxygen battery. In another embodiment, the oxygen storage material is on oxygen communication with the first electrode.
摘要:
According to one aspect of the present invention, a battery system is provided. In one embodiment, the battery system includes a metal oxygen battery including a first electrode and a second electrode, the second electrode including a metal material (M); and an oxygen containment unit in communication with and external to the metal oxygen battery, the oxygen containment unit including an oxygen storage material. In another embodiment, the metal oxygen battery and the oxygen containment unit are in a closed-loop with respect to each other.
摘要:
According to at least one aspect of the present invention, a hydrogen storage material is provided. In at least one embodiment, the material comprises a borohydride compound of the formula M(BH4)n, wherein M includes Ca and n is an integer of 2 to 6; and a destabilizing agent selected from the group consisting of Cr, ScH2, and combinations thereof. In at least another embodiment, the material comprises a metal borohydride M(BH4)n, wherein M includes Li and n is an integer of 1 to 5, and a destabilizing agent of Cr.
摘要:
Techniques for suppressing large echo due to nonlinearity, instable adaptive filter, and so on. An echo cancellation system includes an echo canceller unit, a nonlinear echo detection unit, and a nonlinear echo suppression unit. The echo canceller unit (e.g., an adaptive filter) receives a reference signal and a near-end signal, derives an echo estimate signal based on the reference and near-end signals, cancels a portion of echo in the near-end signal based on the echo estimate signal, and provides an intermediate signal having residual echo. The nonlinear echo detection unit detects for large nonlinear echo in the echo estimate signal. The nonlinear echo suppression unit suppresses large nonlinear echo in the first intermediate signal based on a variable gain, which may be adjusted lower if large nonlinear echo is detected and higher otherwise.