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| 1 | Design and dynamic analysis of integrated architecture for vibration energy harvesting including piezoelectric frame and mechanical amplifier显示文摘Vibration energy harvesters(VEHs) can transform ambient vibration energy to electricity and have been widely investigated as promising self-powered devices for wireless sensor networks, wearable sensors, and applications of a micro-electro-mechanical system(MEMS). However, the ambient vibration is always too weak to hinder the high energy conversion efficiency. In this paper, the integrated frame composed of piezoelectric beams and mechanical amplifiers is proposed to improve the energy conversion efficiency of a VEH. First, the initial structures of a piezoelectric frame(PF) and an amplification frame(AF) are designed. The dynamic model is then established to analyze the influence of key structural parameters on the mechanical amplification factor. Finite element simulation is conducted to study the energy harvesting performance, where the stiffness characteristics and power output in the cases of series and parallel load resistance are discussed in detail. Furthermore, piezoelectric beams with variable cross-sections are introduced to optimize and improve the energy harvesting efficiency. Advantages of the PF with the AF are illustrated by comparison with conventional piezoelectric cantilever beams. The results show that the proposed integrated VEH has a good mechanical amplification capability and is more suitable for low-frequency vibration conditions. | Xiangjian DUAN Dongxing CAO Xiaoguang LP Yongjun SHEN | 2021 | Applied Mathematics and Mechanics(English Edition)2021，42，6： | 2 |
| 2 | Role of intestinal sterol transporters Abcg5, Abcg8, and Npc111 in cholesterol absorption in mice: gender and age, effects 显示文摘 | Duan LP Wang HH Ohashi A | 2006 | Am J Physiol Gastrointest Liver Physiol2006，290，2： | 1 |
| 3 | Differences in cerebral response to esophageal acid stimuli and psychological anticipation in GERD subtypes--an fMRI study显示文摘 | Wang K Duan LP Zeng XZ | 2011 | BMC Gastroenterol2011，11，： | 1 |
| 4 | Cryptosporidium genotype andsubtype distribution in raw wastewater in shanghai,China:Evidence for possible unique Cryptosporidium hominis tra-nsmission显示文摘 | FengY Li N Duan LP | 2009 | J Clin Microbiol2009，47，1： | 1 |
| 5 | Clinical variety of in eosinophilic gastroenteritis 显示文摘 | Duan LP Lv YM Hu CS | 2001 | Chin J Dig2001，21，1： | 1 |
| 6 | Normal macular thickness measurements using optical coher- ence tomography in healthy eyes of adult Chinese persons:the Handan Eye Study 显示文摘 | Duan XR Liang YB Friedman DS Sun LP Wong TY Tao QS et a/ | 2010 | Ophthalmology2010，117，8： | 1 |
| 7 | Extracellular vesicles derived from human bone marrow Mesenchymal stem cells promote angiogenesis in a rat myocardial infarction model显示文摘 | Suyan Bian SY Zhang LP Duan LF | 2014 | Journal of Molecular Medicine2014，92，： | 1 |
| 8 | The influence on the gastric emptying of solids and liquids monitored by ^13C- breath tests显示文摘 | Duan LP Braden B Caspary WF | 1995 | Dig Dis Sci1995，40，： | 1 |
| 9 | Changing pattern of adenocarcinoma of the esophagogastric junction in recent 10 years:experience at a large tertiary medical center in China显示文摘 | Wang K Yang CQ Duan LP | | 0，，5： | 1 |
| 10 | Changing pattern of adenocarcinoma of the esophagogastric junction in recent 10 years: experienee at a large tertiary medical center in China 显示文摘 | Wang K Yang CQ Duan LP el al | 2012 | Tllmnri2012，98，5： | 1 |
| 11 | Novel surface molecularly imprinted sol gel polymer applied to the online solid phase ex- traclion of methyl-3-quinoxaline-2-carboxylic acid and quinoxa- line 2-carboxylic acid from pork muscle 显示文摘 | Duan ZJ Fan LP Fang GZ | 2011 | Anal Bioanal Chem2011，40，7： | 1 |
| 12 | Role of intestinal sterol transporters Abcg5, Abcg8, and Npclll in cholesterol absorption in mice: gender and age effects 显示文摘 | Duan LP Wang HH Ohashi A | 2006 | Am J Physiol Gastrointest Liver Physiol2006，290，2： | 1 |
| 13 | Cholesterol absorption is mainly regulated by the jejunal and ileal ATP-binding cassette sterol efflux transporters Abcg5 and Abcg8 in mice 显示文摘 | Duan LP Wang HH Wang DQ | 2004 | J Lipid Res2004，45，7： | 1 |
| 14 | Human-like collagen/nano- hy- droxyapatite scaffolds for the culture of ehondrocytes显示文摘 | Jia LP Duan ZG Fan DD et 01 | 2013 | Materi- als Science and Engineering: C2013，33，2： | 1 |
| 15 | More convenlent ^13C-urea breath test modifications still meet the criteria for vatid diagnosis of Helicobacter pylori infection显示文摘 | Braden B Duan LP Caspary WF | 1994 | Z Gastroentero1994，32，： | 1 |
| 16 | Changing pattern of adenocarci- noma of the esophagogastric junction in recent 10 years: experience at a large tertiary medical center in China显示文摘 | Wang K Yang CQ Duan LP | 2012 | Tumori2012，98，5： | 1 |
| 17 | A study of gastric emptying in non-ulcer dyspepsia using a new ultrasonographic method显示文摘 | heng ZT Li YN | 1993 | Scand J Gastroenterol1993，28，4： | 1 |
| 18 | A block LU- SGS implicit unsteady incompressible flow solver on hy-brid dynamic grids for 2D external bio-fluid simulations 显示文摘 | Zhang LP ChangX H Duan X P | 2009 | Computers & Fluids2009，38，2： | 1 |
| 19 | Chan- ging pattern of adenocarcinoma of the esophagogastrie junction in recent 10 years:experience at a large tertiary, medi- cal center in China显示文摘 | Wang K Yang CQ Duan LP | 2012 | Tumori2012，98，5： | 1 |
| 20 | Cholesterol absorption is mainly reg- ulated by the jejunal and ileal ATP - binding cassette sterol efflux transporters Abcg5 and Abeg8 in mice 显示文摘 | Duan LP Wang HH Wang DQ | 2004 | J Lipid Res2004，45，7： | 1 |
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