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Klebsiella pneumoniae is an important human pathogen that is associated with a wide range of diseases, including pneumonia and septicemia. Because of the threat of drug-resistant K. pneumoniae to humans, especially carbapenem-resistant K. pneumoniae, which is becoming a growing threat to hospitalized patients, the potential use of phage therapy has generated considerable interest. Henu1, isolated...
Background Thyroid cancer is the most common type of endocrine malignancy and the incidence rate is rapidly increasing worldwide. Epigallocatechin-3-gallate (EGCG) could suppress cancer growth and induce apoptosis in many types of cancer cells. However, the mechanism of action of EGCG on the growth of human thyroid carcinoma cells has not been fully illuminated. Methods Cell proliferation and viability...
FrFT is a new tool which has a dominant advantage to detect LFM-signal. However, under the multipath environment, the LFM signal is distortion on account of the non-correlation superimposition of the multipath component, which results in performance degradation of the detector based on FrFT. In this paper, a combination of time-reversal focusing and Fractional Fourier Transform algorithm is proposed...
As a detection signal LFM pulse is widely used in sonar system. FrFT is a new tool which has a dominant advantage to detect LFM-signal. However, under the multipath environment, the LFM signal is distortion on account of the noncorrelation superimposition of the multipath component, which results in performance degradation of the detector based on FrFT. In this paper, an improved algorithm based on...
Naval ship formation is one of the main counterwork forms in modern sea battles. Reliability theory is used to study naval ship formation deployment. First, a measure method for the cooperative quality of the shipborne equipments in the formation is given based on the concept of reliability degree. Then an optimized deployment of naval fleet is established with consideration of the cooperative quality...
A high-precision digital control DC power supply based on singlechip STC89C52, A/D converter AD7705, D/A converter DAC7512 and three terminal adjustable regulator LM317 is designed and realized, which uses MCU as the center, and adopts 12 DAC DA7512 to realize digital control and 16 ADC AD7705 and LCD to the measurement and display of output voltage. The voltage adjustment range of this system is...
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