Intramolecular Hosomi-Sakurai Reaction for the Synthesis of Benzoxasiloles.

A Lewis acid-catalyzed intramolecular Hosomi-Sakurai reaction of -(allylsilyl)benzaldehyde/ketone has been developed. The reaction proceeds through simultaneous C-Si bond cleavage and C-C bond reconstruction. This protocol provides a rapid approach for the synthesis of allyl-substituted benzoxasiloles under mild conditions.

Peak-to-peak standard deviation based bubble detection method in sodium flow with electromagnetic vortex flowmeter.

The steam generator (SG) is a heat exchange device between a sodium coolant and water in sodium-cooled fast reactors. Its transfer tubes are prone to leakage to result in sodium-water reaction, which will affect the operational safety of the entire nuclear reactor. To this end, a signal processing method is studied to detect the SG leakage using an electromagnetic vortex flowmeter (EVFM).

Transient process based electromagnetic flow measurement methods and implementation.

The ordinary electromagnetic flowmeter (EMF) utilizes the steady-state period of the excitation current for measuring the flow rate in order to ensure zero stability and measurement accuracy. In this paper, the transient process of EMF is studied to measure the flow rate so as to realize applications requiring ultra-low power consumption, for example, water meters. For this reason, the dynamic excitation current and signal voltage of the transient process are analyzed, and three kinds of transient measurement methods are proposed to determine the relationship between the processing results of the signal voltage and flow rates.

[Expression of Nerve Growth Factor and Type 3 of Acid Sensitive Ion Channels in Rat Model of Type Ⅲ Prostatitis].

Objective: To investigate the expressions of nerve growth factor (NGF) and acid-sensing ion channel 3 (ASIC3) in prostatic tissue of experimental rats with type Ⅲ prostatitis.

Methods: Thirty SD rats were randomly allocated into control group and experimental group. The rats in control group were subjected to pelvic and bilateral scapular subcutaneous injections of 0.