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| 1 | Low frequency vibration control of railway vehicles based on ahigh static low dynamic stiffness dynamic vibration absorber显示文摘In order to control the low frequency vibration of railway vehicles, a vertical two degrees of freedom(2DOF) low frequency dynamic vibration absorber(DVA) based on acceleration is proposed. Parameters of the dynamic vibration absorber are put forth to control the low frequency vibration of car body bouncing and pitching. Next, the acceleration power spectrum density(PSD)and ride quality of the car body are calculated based on the pseudo excitation method(PEM) and covariance algorithm,respectively. According to the requirement of 2DOF low frequency DVA, the isolators with high static low dynamic stiffness(HSLDS) are designed. A high-speed train dynamic model containing HSLDS isolators is established to validate the effects on the car body vibration. The results reveal that the 2D low frequency DVA can significantly reduce the vibration of the car body bouncing and pitching. Thus, the ride quality of the vehicle is increased, and passenger comfort is improved. | SUN Yu GONG Dao ZHOU JinSong SUN WenJing XIA ZhangHui | 2019 | Science China(Technological Sciences)2019，62，1： | 6 |
| 2 | Soluble CD163 and CD163 Expression on Monocytes Associated with Chronic Hepatitis B Inflammation and HBsAg Loss显示文摘Background and Aims:Monocyte/macrophage-associat-ed CD163 is an indicator of the severity of liver inflam-mation and cirrhosis,but the difference of soluble CD163(sCD163)levels in chronic hepatitis B(CHB)patients and hepatitis B surface antigen(HBsAg)-loss patients is un-clear.Herein,we aimed to compare the sCD163 levels in CHB patients and HBsAg-loss patients with or without an-tiviral treatment.Methods:sCD163 and CD163 expres-sion on monocytes were compared among four groups,healthy subjects,treatment-naïve CHB patients,sponta-neous HBsAg-loss patients,and treatment-related HBsAg-loss patients.The correlation between sCD163 levels and clinical parameters in CHB patients was analyzed.A group of 80 patients with hepatitis B virus(HBV)infection and liver biopsy were recruited.Results:sCD163 levels were higher in the CHB group than in the other three groups.sCD163 levels were higher in treatment-related HBsAg-loss patients than in spontaneous HBsAg-loss patients.sCD163 levels were negatively correlated with hepatitis B e-antigen(HBeAg)and HBsAg levels in HBeAg-positive patients.Liv-er biopsy results further demonstrated that sCD163 levels were elevated in CHB patients with substantial inflamma-tion(A≥2)or fibrosis(F≥2).The sCD163 model was more sensitive in predicting inflammation than other noninvasive models.Its levels were higher in patients with normal ala-nine aminotransferase levels and significant inflammation(A≥2)than in patients with no or mild inflammation.Con-clusions:sCD163 and CD163 expression on monocytes were associated with CHB inflammation and HBsAg loss,and may be used as markers to predict HBV-specific im-mune activation. | Peilin Xie Bilian Yao Dao Huang Yongyan Chen Qiming Gong Xinxin Zhang | 2022 | Journal of Clinical and Translational Hepatology2022，10，6： | 2 |
| 3 | Influ- ences of Suspended Equipment under Car Body on High Speed Train Ride Quality显示文摘 | SUN Wen-jing GONG Dao ZHOU Jin-song | 2012 | Procedia Engineering2012，16，11： | 1 |
| 4 | Influences of Suspended Equipment under Car Body on I-Iighspeed Train Ride Quality 显示文摘 | Sun Wenjing Gong Dao Zhou Jinsong | 2012 | Procedia Engineering2012，，16： | 1 |
| 5 | The Change of Plasm a very Low Density Lipoprotein Concentration Pre-or Post-Feeding and in Conrrelation with Body Fatness Traits in Broiler Chickens显示文摘1 Introduction Modernwhitefeatherbroilersgrowfastduringtheearlyoflife,butexcessivefatdepotssimultancouslyinthebody.Theenergy... | Li Hui, Yu He, Gong Dao qing, Zhang De xiang (College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030,PRC) | 1999 | Journal of Northeast Agricultural University(English Edition)1999，6，2： | 1 |
| 6 | Influences of suspended equipment under car body on highspeed train ride quality显示文摘 | SUN Wenjing GONG Dao ZHOU Jinsong | 2011 | Procedia Engineering2011，16，1： | 1 |
| 7 | Influences of suspended equipment under car body on high speed train ride quality显示文摘 | Sun Wenjing Gong Dao Zhou Jinsong | 2012 | Procedia Engineering2012，16，： | 1 |
| 8 | Influences of Sus- pended Equipment under Car Body on Highspeed Train Ride Quality 显示文摘 | Sun Wenjing Gong Dao Zhou Jinsong | 2012 | Procedia Engineering2012，，16： | 1 |
| 9 | On the resonant vibration of a flexible railway car body and its suppression with a dynamic vibration absorber显示文摘 | GONG Dao ZHOU Jinsong SUN Wenjing | 2013 | Journal of Vibration and Control2013，19，5： | 1 |
| 10 | Influences of Suspended Equipment under Car Body on High-speed Train Ride Quality显示文摘 | Wenjing Sun Dao Gong Jinsong Zhou Yangyang Zhao | 2011 | Procedia Engineering2011，，： | 1 |
| 11 | Influencesof suspended equipment under car body on high-speed trainride quality显示文摘 | SUN Wen-jing GONG Dao ZHOU Jin-song | 2011 | Procedia Engineering2011，16，1： | 1 |
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