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5篇 您的检索式:作者名="Ma Litian"
    题名 作者 年代 出处 被引量
1A review on China's constructed wetlands in recent three decades:Application and practice显示文摘Constructed wetlands(CWs)have been introduced to and developed in China for environmental engineering over the most prosperous three decades(1990–2020).To study the origin,development process,and future trend of CWs,this review summarized a wide range of literatures between 1990 and 2020 by Chinese authors.Firstly,the publication number over years,research highlights,and the author contributions with the most published papers in this field were conducted through bibliometric analysis.Secondly,the most principal components of CWs,substrates and macrophytes were summarized and analyzed.Thirdly,the typical application cases from traditional CWs,pond systems to combined pond-wetland systems were presented.In China,CWs were predominately distributed in the east of the so-called'Hu Huanyong Line'.Therefore CWs were limited by the socio-economic level and climatic conditions.It is unquestionable that the overall level of China's CWs has improved significantly,and one of the most prominent features has started towards the plural pattern development.There has been a trend of large-scale or low-cost CW application in the recent years.However,lifecycle research and management are required for better strategies in the future.Hong Zhang Wenzhong Tang Weidong Wang Wei Yin Honglei Liu Xiaomin Ma Yiqi Zhou Pei Lei Dongyang Wei Litian Zhang Cao Liu Jinmiao Zha 2021Journal of Environmental Sciences2021,33,6:13
2Effective den- sity-of-states approach to QM correction in MOS structures显示文摘Ma Yutao Li Zhijian Liu Litian 2000Solid-state Electronics2000,44,3:1
3Design and fabrication of a silicon miniature condenser microphone显示文摘Micromachining miniature microphone is one of the most challenging tasks in research and development today. For micromachining membrane, there is a significant internal (residual) stress, which strongly decreases the mechanical sensitivity of membrane. As predicted by theoretical analysis and numerical simulation, a corrugated diaphragm can greatly increase the mechanical sensitivity of the microphone diaphlagms due to the reduction of the initial stress effect without changing the process conditions. A silicon condenser miniature for crophone with corrugated diaphragm has been designed, fabricated and tested. The fabrication process is simple, efficient and fully compatible with standard IC process. Wafer level measurement has been carried out. An open circuit sensitivity of 40 my/Pa up to 7 kHz could be achieved under a low bias voltage of 10 V with only 1.5× 1.5 mm2 chip area. The preamplifier and subsequent signal process circuits are expected to be integrated in the same chip to make a complete micro-acoustic system.CHEN Jing, LIU Litian, LI Zhijian, TAN Zhimin (Institute of Microelectronics, Tsinghua University Beijing 100084) MA Jun, LI Boquan (Institute of Acoustics, Chinese Academy of Sciences Beijing 100080) 2001Chinese Journal of Acoustics2001,20,2:0
4Exosomal lncRNA LINC01268 promotes pancreatic cancer progression via the miR-217-KIF2A-PI3K/AKT axis显示文摘Pancreatic cancer(PaCa)is one of the most aggressive and lethal malignancies with rapid progression and poor prognosis with the 5-year survival rate remaining less than 5%because approximately 80%of PaCa patients are diagnosed at an advanced stage and lose the chance of curative resection.1 Accumulated evidence has revealed that noncoding RNAs(ncRNAs)are involved in the pathogenesis of PaCa and serve as potential biomarkers for PaCa.2,3 Exosomal lncRNAs also play a vital role in tumorigenesis and some exosomal lncRNAs have been reported to accelerate tumor progression.4 In this study,we first employed RNA-seq of PaCa plasma samples to identify significantly differentially expressed lncRNAs in PaCa patients and revealed that LINC01268 was up-regulated in PaCa tumor tissues and plasma.LINC01268 is an emerging lncRNA associated with glioma malignancy grade.5 Thus.we further analyzed the malignant biological behaviors of this lncRNA in PaCa and found that LINC01268 promoted cell proliferation,migration,and invasion as an oncogene,which promoted epithelial–mesenchymal transition(EMT)in PaCa via the miR-217-KIF2A-PI3K/AKT axis.Shanshan Liu Yang Di Qiuyue Li Litian Chen Yan Ma Xiaomeng He Christopher Corpe Xiaoyan Zhang Jianqing Xu Jin Wang 2023Genes & Diseases2023,10,5:0
5Anterior insular cortex mediates visceral hypersensitivity induced by chronic pancreatitis in the rat显示文摘Central sensitization plays a pivotal role in the maintenance of chronic pain induced byvisceral diseases,including chronic pancreatitis(CP),but cortical modulation of painful CP remains elusive.This study was designed to examine the role of anterior insular cortex(aIC)in the pathogenesis of visceral hypersensitivity in a rat model of CP.CP was induced by intraductal administration of trinitrobenzene sulfonic acid(TNBS).Visceral hypersensitivity and anxiety were assessed by von Frey filament examination and open field test,respectively.Two weeks after surgery,neural activation within aIC was tested by both examining Fos expression and electrophysiological recordings.Expressions of VGluT1,NMDAR subunit NR2B and AMPAR subunit GluR1 were analyzed by immunoblottings.The regulatory roles of aIC in visceral hypersensitivity and pain-related anxiety were detected via pharmacological approach and chemogenetic test in CP rats.Bai Yang Ma Litian Fan Boyuan Li Yunqing 2021解剖学杂志2021,44,S01:0
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