A method and apparatus for increasing the efficiency of low power amplifiers

• 1. 一种基站功率放大器及提高基站功率放大器效率的方法 [P] . 中国专利： CN101924520B . 2012.11.14
• 2. 一种基站功率放大器及提高基站功率放大器效率的方法 [P] . 中国专利： CN101924520A . 2010-12-22
• 3. Method and apparatus for increasing the efficiency of low power amplifiers [P] . 美国专利： US7899417B2 . 2011-03-01

  机译： 提高低功率放大器效率的方法和装置

• 4. Method and Apparatus for Increasing the Efficiency of Low Power Amplifier [P] . 美国专利： US2008211587A1 . 2008-09-04

  机译： 提高低功率放大器效率的方法和装置

• 5. A method and apparatus for increasing the efficiency of low power amplifiers [P] . 英国专利： GB0803006D0 . 2008-03-26

  机译： 一种提高低功率放大器效率的方法和装置

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• 1. Research on the Effect of High Power Microwave on Low Noise Amplifier and Limiter Based on the Injection Method [J] . D. Chen ,L.M. Xu ,B.S. Zhang . 电磁分析与应用期刊（英文） . 2010,第2期
• 2. BACKGROUND： Vibrio vulnifi cus inside the body could activate the NF-!B signaling pathwayand initiate the inflammatory cascade. The lung is one of the earliest organs affected by sepsisassociated with acute lung injury. High mobility group protein B1 （HMGB1） is an important late-actingpro-infl ammatory cytokine involving in the pathophysiology of sepsis. It is also involved in the injuryprocess in the lung, liver and intestine. There has been no report on the involvement of HMGB1 inVibrio vulnifi cus sepsis-induced lung injury.METHODS： Sixty rats were randomly divided into a normal control group （group A, n=10） anda Vibrio vulnificus sepsis group （group B, n=50）. Sepsis was induced in the rats by subcutaneousinjection of Vibrio vulnificus （concentration 6×108 cfu/mL, volume 0.1 mL/100g）） into the left lowerlimbs. The rats in group B were sacrifi ced separately 1, 6, 12, 24, and 48 hours after the infection.Their lungs were stored as specimens, lung water content was measured, and lung pathology wasobserved under a light microscope. The expressions of the HMGB1 gene and protein in the lungswere detected by RT-PCR and Western blot. Data were analyzed with one-way analysis of variance（ANOVA） and the LSD method for pair-wise comparison between the two groups. P〈0.05 wasconsidered statistically signifi cant.RESULTS： Compared to group A （0.652±0.177）, HMGB1 mRNA expression in the lungs ofgroup B was signifi cantly higher at 0 hour （1.161±0.358, P=0.013）, 24 hours （1.679±0.235, P=0.000）,and 48 hours （1.258±0.274, P=0.004） （P〈0.05）, and peaked at 24 hours. Compared to group A（0.594±0.190）, HMGB1 protein expression at 6 hours （1.408±0.567, P=0.026） after infection wassignificantly increased （P〈0. 05）, and peaked at 24 hours （2.415±1.064, P=0.000） after infection.Compared to group A （0.699±0.054）, lung water content was significantly increased at 6 hours（0.759±0.030, P=0.001）,12 hours （0.767±0.023, P=0.000）, 24 hours （0.771±0.043, P=0.000） and 48hours （0.789±0.137, P=0.000） after infection （P〈0.05）. Compared to group A, pathological changesat 12 hours in group B indicate marked pulmonary vascular congestion, interstitial edema andinfl ammatory infi ltration. Alveolar cavity collapse and boundaries of the alveolar septum could not beclearly identifi ed.CONCLUSION： Vibrio vulnifi cus sepsis can lead to injury in rat lungs, and increased HMGB1expression in lung tissue may be one of the mechanisms for injury from Vibrio vulnifi cus sepsis. [J] . Qiao-meng Qiu ,Zhong-wang Li ,Lu-ming Tang . 世界急诊医学杂志(英文) . 2011,第4期
• 3. A 1.8 GHz Power Amplifier Class-E with Good Average Power Added Efficiency [J] . Mousa Yousefi ,Ziaadin Daie Koozehkanani ,Jafar Sobhi . 电路与系统（英文） . 2013,第8期
• 4. Novel approach to harmonic control for Class F power amplifier with high power added efficiency [J] . Jin Boshi ,Wu Qun ,Yang Guohui . 仪器仪表学报 . 2007,第7期
• 5. Methods for Increasing the Efficiency of Cleaning the Transfer Device [J] . Salokhiddinova Makhliyo ,Muradov Rustam . 工程(英文)(1947-3931) . 2022,第1期
• 6. 一种直升机主减速装置传动效率的飞行试验测定方法 [C] . 屈霁云 ,李冬兰 . 中国航空学会飞行力学与飞行试验专业委员会第十九届学术交流会 . 2003
• 7. 一种L波段高效率高速跳频功率放大器设计与验证 [A] . 钟琪林 . 2020