Abstract:
An example energy dissipation device for controlling a fuel cell fluid includes a conduit extending in longitudinal direction between a first opening and a second opening. A flow control insert is configured to be received within the conduit. The flow control insert is configured to cause a fuel cell fluid to flow helically relative to the longitudinal direction.
Abstract:
A system for detecting and minimizing interference in a radio receiver includes a plurality of bandpass filters having different response characteristics, a power detector configured to compare a power output of a first bandpass filter and a second bandpass filter, and logic to cascade a third bandpass filter when the difference in power output between the power output of the first bandpass filter and the power output of the second bandpass filter exceeds a threshold amount.
Abstract:
The present disclosure provides efficient and reproducible methods for individually synthesizing oligomers in a parallel manner (e.g., oligonucleotides) on a solid support to produce pools of oligomers. Pools of oligonucleotides can be used for a variety of genomic and proteomic applications, including synthesis of genes or long DNA of any arbitrary sequence, PCR template amplification, and to generate primers for multiplexing PCR or transcription. Rapid availability of these oligonucleotide products will greatly accelerate the processes of de novo protein design, vaccine development, production of short RNA fragments, such as siRNA, oligonucleotide-based drug screening, and SNP sample preparation.
Abstract:
A system for tuning a radio receiver includes a radio receiver configured to provide a downconverted digital error signal, a digital synthesizer circuit configured to generate a first local oscillator control signal, a digital automatic frequency control (AFC) circuit configured to generate a second local oscillator control signal, wherein the digital synthesizer circuit is enabled to generate the first local oscillator control signal when the digital AFC circuit is disabled, the first local oscillator control signal corresponds to an estimate of a desired local oscillator frequency, the digital AFC circuit is enabled to generate the second local oscillator control signal when the digital synthesizer circuit is disabled and the second local oscillator control signal corresponds to the desired local oscillator frequency.
Abstract:
A system for detecting a broadcast channel in a radio receiver includes a receive signal strength indicator (RSSI) element configured to develop an RSSI signal that is representative of a power in a desired channel, a switchable bandwidth channel select filter having a power detector configured to compare a power output of the desired channel and at least one channel adjacent to the desired channel to develop a signal to adjacent channel power ratio (SACPR) signal that is representative of the noise in the desired channel, and a seek element configured to determine whether the RSSI signal is greater than a predetermined RSSI threshold and configured to determine whether the SACPR signal is greater than a predetermined SACPR threshold.
Abstract:
A system for detecting a broadcast channel in a radio receiver includes a receive signal strength indicator (RSSI) element configured to develop an RSSI signal that is representative of a power in a desired channel, a switchable bandwidth channel select filter having a power detector configured to compare a power output of the desired channel and at least one channel adjacent to the desired channel to develop a signal to adjacent channel power ratio (SACPR) signal that is representative of the noise in the desired channel, and a seek element configured to determine whether the RSSI signal is greater than a predetermined RSSI threshold and configured to determine whether the SACPR signal is greater than a predetermined SACPR threshold.
Abstract:
The present disclosure provides efficient and reproducible methods for individually synthesizing oligomers in a parallel manner (e.g., oligonucleotides) on a solid support to produce pools of oligomers. Pools of oligonucleotides can be used for a variety of genomic and proteomic applications, including synthesis of genes or long DNA of any arbitrary sequence, PCR template amplification, and to generate primers for multiplexing PCR or transcription. Rapid availability of these oligonucleotide products will greatly accelerate the processes of de novo protein design, vaccine development, production of short RNA fragments, such as siRNA, oligonucleotide-based drug screening, and SNP sample preparation.
Abstract:
Disclosed is a process for preparing Tebipenem Pivoxil and analogues thereof. The process uses a carbapenem compound salt of the formula II as a raw material to obtain a carbapenem compound ester of the formula I, wherein the carbapenem compound salt of the formula II is obtained by directly reacting a carbapenem compound of the formula III with an ester represented by the formula IV.
Abstract:
A shape memory composition includes a high temperature ionomer having a glass transition temperature or a melting temperature of 100°C or greater and a modulus at room temperature of 1 x 10 8 Pa or greater, the high temperature ionomer including a polymer with ionic units either within the backbone of the polymer or pendant to the backbone or both. The shape memory composition includes crystalline or glassy domains of a low molecular weight non-polymeric compound dispersed in the high temperature ionomer and interacting the ionic units of the high temperature ionomer to form a secondary network characterized by being a reversible network in that it is compromised by the heating of the low molecular weight non-polymeric compound to change out of its crystalline or glassy phase.
Abstract:
An advanced telecommunications computing architecture (ATCA) data exchange system, exchange board and a data exchange method are provided in the embodiments of the present invention. Wherein, the ATCA data exchange system includes: a backboard, at least one exchange board and at least one service board; the exchange board includes at least one Fabric port group, and each Fabric port group is connected with one service board through the backboard to form a first exchange channel for broadband service data exchange, wherein, the Fabric port group includes four difference receipt and transmission port pairs, and each difference receipt and transmission port pair includes one pair of difference receipt ports and one pair of difference transmission ports; a connector 20 in the exchange board Fabric interface includes at least one difference receipt and transmission port pair, and each difference receipt and transmission port pair is connected with one service board through the backboard to form a second exchange channel which is independent of the first exchange channel, which is used for narrowband service data exchange which is independent of the broadband service data exchange through the second exchange channel separately. With the embodiments of the present invention, the processing of the narrowband data can be simplified and time delay can be decreased.