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11篇 您的检索式:作者名="Shanping Yu"
    题名 作者 年代 出处 被引量
1Transplantation of hypoxia-preconditioned mesenchymal stem cells improves infarcted heart function via enhanced survival of implanted cells and angiogenesis显示文摘HU Xinyang YU Shanping FRASER J L 2008J Thorac Cardiovasc Surg2008,135,4:1
2Transplantation of hypoxia-preconditioned mesenchymal stem cells improves infarcted heart function via enhanced survival of implanted cells and angiogenesis显示文摘Hu Xinyang Yu Shanping Fraser J L 0,,04:1
3Timing and Single-pulse Study of Pulsar J1909+0122 Discovered by CRAFTS显示文摘We report the discovery of PSR J1909+0122 by the Five-hundred-meter Aperture Spherical Radio Telescope(FAST)as part of the Commensal Radio Astronomy FAST Survey.PSR J1909+0122 has a spin period of 1.257 s and a dispersion measure of 186.2 pc cm^(-3).The averaged pulse profile shows two distinct components.We performed a single-pulse study based on a one-hour observation at 1.25 GHz on 2021 August 23.We used a threshold of 5σ_(ep) to measure the nulling fraction(NF)as 63%±1.5%.The longitude-resolved fluctuation spectra and fast Fourier transform spectra of the binary sequences revealed the quasi-periodicity of nulling with a period of 30 rotation periods.We examined the reliability of the periodicity by comparing it to random noise injection.The NF,E,and modulation periodicity P_(M) of PSR J1909+0122 were compared with other periodic nulling pulsars,showing that the source of J1909+0122 has the second largest NF in the population.Long-term timing observations over six months were used to derive the phase-connected ephemeris of this pulsar.The measured P and P values disfavor dipolar geometry for polar gap models,and the prediction for a space-charge-limited flow model in the case of inverse Compton scattering is only just above the death line.In this work,PSR J1909+0122 has revealed possible correlations between nulling behavior and pulsar properties,which will help to shed light on the pulsar emission mechanism and its temporal evolution in future observations.Yutong Chen Pei Wang Di Li Erbil Gügercinoğlu Rushuang Zhao Lingqi Meng Jianping Yuan Jiarui Niu Weiwei Zhu Yi Feng Chenchen Miao Chenhui Niu Qingdong Wu Na Wang Shen Wang Xiaoyao Xie Mengyao Xue Jumei Yao Mao Yuan Shanping You Xuhong Yu Youling Yue Jie Zhang Junshuo Zhang Lei Zhang Yabiao Wang Zhenye Gan Yuxi Li Zhongyi Sun Chengjie Wang 2023Research in Astronomy and Astrophysics2023,23,8:0
4Study on Treatment of Heavy Metals in Fly Ash by a Chelating Agent显示文摘The fly ash from two municipal solid waste incineration plants in Shanghai was treated by the self-developed organic composite chelating agent. The results indicated that the stabilization effect of Pb in the fly ash by the composite chelating agent was the best,and the proportions of its easily leaching form in the two kinds of fly ash decreased from 29. 60% and 27. 49% to 3. 05% and 0. 29% respectively. The leaching toxicity of stabilized fly ash was lower than the limits of Standard for Pollution Control on the Landfill Site of Municipal Solid Waste( GB 16889- 2008),so it can be landfilled separately in the landfill site of municipal solid waste.yu zhaohui zhang ruina bi zhujie chen shanping 2016Meteorological and Environmental Research2016,7,2:0
5FAST discovery of an extremely radio-faint millisecond pulsar from the Fermi-LAT unassociated source 3FGL J0318.1+0252显示文摘High sensitivity radio searches of unassociated γ-ray sources have proven to be an effective way of finding new pulsars. Using the Five-hundred-meter Aperture Spherical radio Telescope(FAST) during its commissioning phase, we have carried out a number of targeted deep searches of Fermi Large Area Telescope(LAT) γ-ray sources. On February 27, 2018 we discovered an isolated millisecond pulsar(MSP), PSR J0318+0253, coincident with the unassociated γ-ray source 3 FGL J0318.1+0252. PSR J0318+0253 has a spin period of 5.19 ms, a dispersion measure(DM) of 26 pc cm-3 corresponding to a DM distance of about 1.3 kpc, and a period-averaged flux density of(~11±2) μJy at L-band(1.05-1.45 GHz). Among all high energy MSPs, PSR J0318+0253 is the faintest ever detected in radio bands, by a factor of at least ~4 in terms of L-band fluxes. With the aid of the radio ephemeris, an analysis of 9.6 years of Fermi-LAT data revealed that PSR J0318+0253 also displays strong γ-ray pulsations. Follow-up observations carried out by both Arecibo and FAST suggest a likely spectral turn-over around 350 MHz. This is the first result from the collaboration between FAST and the Fermi-LAT teams as well as the first confirmed new MSP discovery by FAST, raising hopes for the detection of many more MSPs. Such discoveries will make a significant contribution to our understanding of the neutron star zoo while potentially contributing to the future detection of gravitational waves, via pulsar timing array(PTA) experiments.Pei Wang Di Li Colin J.Clark Pablo M.Saz Parkinson Xian Hou Weiwei Zhu Lei Qian Youling Yue Zhichen Pan Zhijie Liu Xuhong Yu Shanping You Xiaoyao Xie Qijun Zhi Hui Zhang Jumei Yao Jun Yan Chengmin Zhang Kwok Lung Fan Paul S.Ray Matthew Kerr David A.Smith Peter F.Michelson Elizabeth C.Ferrara David J.Thompson Zhiqiang Shen Na Wang FAST&Fermi-LAT Collaboration 2021Science China(Physics,Mechanics & Astronomy)2021,64,12:0
6N-methyl-D-aspartate receptor subtype 3A promotes apoptosis in developing mouse brain exposed to hyperoxia显示文摘In the present study, 7 day postnatal C57/BL6 wild-type mice (hyperoxia group) and 7 day postnatal N-methyl-D-aspartate receptor subtype 3A knockout mice (NR3A KO group) were exposed to 75% oxygen and 15% nitrogen in a closed container for 5 days. Wild-type mice raised in normoxia served as controls. TdT-mediated dUTP nick end labeling (TUNEL)/neuron-specific nuclear protein (NeuN) and 5-bromo-2'-deoxyuridine (BrdU)/NeuN immunofluorescence staining showed that the number of apoptotic cells and the number of proliferative cells in the dentate subgranular zone significantly increased in the hyperoxia group compared with the control group. However, in the same hyperoxia environment, the number of apoptotic cells and the number of proliferative cells significantly decreased in the NR3A KO group compared with hyperoxia group. TUNEL+/NeuN+ and BrdU+/NeuN+ cells were observed in the NR3A KO and the hyperoxia groups. These results demonstrated that the NR3A gene can promote cell apoptosis and mediate the potential damage in the developing brain induced by exposure to non-physiologically high concentrations of oxygen.Jimei Li Shanping Yu Zhongyang Lu Osama Mohamad Ling Wei 2012Neural Regeneration Research2012,7,4:0
7LSTM-Based Adaptive Modulation and Coding for Satellite-to-Ground Communications显示文摘Satellite communication develops rapidly due to its global coverage and is unrestricted to the ground environment. However, compared with the traditional ground TCP/IP network, a satellite-to-ground link has a more extensive round trip time(RTT) and a higher packet loss rate,which takes more time in error recovery and wastes precious channel resources. Forward error correction(FEC) is a coding method that can alleviate bit error and packet loss, but how to achieve high throughput in the dynamic network environment is still a significant challenge. Inspired by the deep learning technique, this paper proposes a signal-to-noise ratio(SNR) based adaptive coding modulation method. This method can maximize channel utilization while ensuring communication quality and is suitable for satellite-to-ground communication scenarios where the channel state changes rapidly. We predict the SNR using the long short-term memory(LSTM) network that considers the past channel status and real-time global weather. Finally, we use the optimal matching rate(OMR) to evaluate the pros and cons of each method quantitatively. Extensive simulation results demonstrate that our proposed LSTM-based method outperforms the state-of-the-art prediction algorithms significantly in mean absolute error(MAE). Moreover, it leads to the least spectrum waste.Shiqi Zhang Guoxin Yu Shanping Yu Yanjun Zhang Yu Zhang 2022Journal of Beijing Institute of Technology2022,31,5:0
8Pulsar candidate selection using ensemble networks for FAST drift-scan survey显示文摘The Commensal Radio Astronomy Five-hundred-meter Aperture Spherical radio Telescope(FAST) Survey(CRAFTS) utilizes the novel drift-scan commensal survey mode of FAST and can generate billions of pulsar candidate signals. The human experts are not likely to thoroughly examine these signals, and various machine sorting methods are used to aid the classification of the FAST candidates. In this study, we propose a new ensemble classification system for pulsar candidates. This system denotes the further development of the pulsar image-based classification system(PICS), which was used in the Arecibo Telescope pulsar survey, and has been retrained and customized for the FAST drift-scan survey. In this study, we designed a residual network model comprising 15 layers to replace the convolutional neural networks(CNNs) in PICS. The results of this study demonstrate that the new model can sort >96% of real pulsars to belong the top 1% of all candidates and classify >1.6 million candidates per day using a dual-GPU and 24-core computer. This increased speed and efficiency can help to facilitate real-time or quasi-real-time processing of the pulsar-search data stream obtained from CRAFTS. In addition, we have published the labeled FAST data used in this study online, which can aid in the development of new deep learning techniques for performing pulsar searches.HongFeng Wang WeiWei Zhu Ping Guo Di Li SiBo Feng Qian Yin ChenChen Miao ZhenZhao Tao ZhiChen Pan Pei Wang Xin Zheng XiaoDan Deng ZhiJie Liu XiaoYao Xie XuHong Yu ShanPing You Hui Zhang FAST Collaboration 2019Science China(Physics,Mechanics & Astronomy)2019,62,5:0
9Introduction and recent progress of BRAIN Initiative in the United States显示文摘The presidential research program Brain Research through Advancing Innovative Neurotechnologies(BRAIN)Initiative was established5years ago in the United States;it has been a driving force of the United States government and private factors to promote technology development in basic and translational neuroscience research.We here summarize the research plan and recent progress in cellular neuroscience,electrical and optical engineering,chemical and systems neurobiology,and brain mapping technologies.The research plan recognizes the importance of identifying different cell populations and unknown cell types in the human brain and diseased models.Technological advances in multielectrode arrays and chemical flow measurement probes not only demonstrate the capacity of detecting neural activities in large areas,but also enable a new era of studying the neural coding information.Large-scale coordination of neuronal activity and brain mapping information will allow for the identification of therapeutic targets in neurological disorders,which is benefited by big data acquisition and analysis.Specifically,increased brain databases will expedite the dissection of thoughts,emotions,cognition,and will thereby help the development of better understanding and treatments of brain disorders.Since cell therapy demonstrates potential for regenerative medicine,the utilization of the newly advanced technologies may further improve the translational potentials and precision controls of transplanted grafts.The development of new diagnostic and therapeutic tools also requires international collaborations on science,technology,advocating,healthcare and medical ethics to advance the innovation and clinical practices.Zheng Z Wei Myles R McCrary Ling Wei Shanping Yu 2018Journal of Translational Neuroscience2018,3,2:0
10Recent advances on false information governance显示文摘In recent years,false information or misinformation,which may result from misperception or deception[1,2],has been spread explosively through various social media,such as short videos,Weibo,and lives.In reality,it generates rumors,influences social opinion,and disturbs the social order.The widespread false information on the Internet or public media brings us profound negative effects,especially in the economy,psychology,and daily life.Shanping Yu Qingqing Sun Ziyi Yang 2023Control Theory and Technology2023,21,1:0
11Time-optimal control for hybrid systems based on the nitrogen-vacancy center显示文摘快并且高保真度量控制是量计算的关键技术。由氮空缺中心和附近的 Carbon-13 原子纺纱组成的混合系统被期望解决这个问题。氮空缺中心电子旋转为它到控制地的强壮的联合启用快操作,而原子旋转为他们到环境的弱联合保存连贯。在这份报纸,我们描述策略由轮流出现作为一个致动器控制氮空缺中心电子旋转完成 Carbon-13 原子旋转 qubit 的时间最佳的控制。我们把 qubit 门操作转变成一个交换系统。由使用最大的原则,我们学习交换系统的最小的时间控制并且获得 qubit 门操作的时间最佳的控制。当忠实到达 0.995 时,我们证明 X 门和 Y 门操作在 10 s 以内。Shanping YU Na LI Peng WEI Zairong XI 2017Control Theory and Technology2017,15,3:0
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