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| 1 | Preparation and characterization of Eu^(3+)-doped CaCO_3 phosphor by microwave synthesis显示文摘A Eu3+-doped CaCO3 phosphor with red emission was prepared by microwave synthesis. The scanning electron microscopy (SEM) image and laser particle size analysis show that the CaCO3:Eu3+ particles are needle-like in the length range of 5.0-10.0 μm. The results of X-ray diffraction (XRD) analysis, Fourier transform infrared spectroscopy (FT-IR), and Raman spectroscopy indicate that pure aragonite CaCO3:Eu3+ is prepared using microwave irradiation and the Eu3+ ion as a luminescence center inhabits the site of Ca2+. The photoluminescence excitation (PLE) spectrum shows that the strong broad band at around 270 nm and weak sharp lines in 300-550 nm are assigned to the charge transfer band of Eu3+-O2- and intra-configurational 4f-4f transitions of Eu3+, respectively. The photoluminescence (PL) spectrum implies that the red luminescence can be attributed to the transitions from the 5D0 excited level to the 7FJ (J = 0, 1, 2, 3, 4) levels of Eu3+ ions with the mainly electric dipole transition 5D0 → 7F2 (614 and 620 nm), and the Eu3+ ions prefer to occupy the low symmetric site in the crystal lattice. | KANG Ming LIU Jun YIN Guangfu SUN Rong | 2009 | Rare Metals2009，28，5： | 13 |
| 2 | on Composition Operators on H^p-Spaces in Several Variables in Several Variables | Cao Guangfu Sun Shunhua (Department of Mathematics,Sichuan University,Chengdu 610064,China) | 1997 | Acta Mathematica Sinica,English Series1997，13，2： | 7 |
| 3 | Improved two-way satellite time and frequency transfer with Multi-GEO in BeiDou navigation system显示文摘Due to the limitation of Geostationary Earth Orbit(GEO)satellite resources,only very few TWSTFT links with parallel counterpart operating via diferent GEO satellites between two ground stations are available.There are 5 GEO satellites in BeiDou Navigation System,which enables an improved TWSTFT with Multi-GEO.Two algorithms are put forward to take the advantage of Multi-GEO links to improve the performance of time and frequency transfer respectively.The dynamic weight average algorithm based on a newly proposed dynamic time variance aiming at improving the performance of time transfer is shown to be able to reduce the dynamic time deviation of the two-way measurement result to 1/√N dynamic time deviation of the single link using N-GEO links,if each link has similar level of link noises.The algorithm of cancelling out the link noise Allan variances with 2-GEO links is expected to obtain the Allan variance of clock diference between two ground stations.The experiment results using 2-GEO links in BeiDou Navigation System show that the dynamic weight average algorithm can improve the dynamic time deviation of the two-way measurement to around 0.6 of that of the single link in an average concept.And the estimated Allan deviation of the clock diference using the algorithm for cancelling the noise Allan variances of both links can reach 7×10 12(τ0.65)for the averaging time 1–105s which is within the same order of magnitude as the estimated Allan deviation based on carrier Doppler measurement for the averaging time 10 s–104s,despite the noisy links with the Allan deviation follows 3×10 10(τ1). | YANG WenKe GONG Hang LIU ZengJun LI YuanLing SUN GuangFu | 2014 | Science China(Information Sciences)2014，57，2： | 4 |
| 4 | Backstepping-based distributed coordinated tracking formultiple uncertain Euler-Lagrange systems显示文摘Based on the idea of backstepping design, distributed coordinated tracking problems under directed topology are discussed for multiple Euler-Lagrange(EL) systems. The dynamic leader case is considered. First, with the parameter-linearity property, a distributed coordinated adaptive control scheme is proposed for EL systems in the presence of parametric uncertainties.Then, subject to nonlinear uncertainties and external disturbances,an improved adaptive control algorithm is developed by using neural-network(NN) approximation of nonlinear functions. Both proposed algorithms can make tracking errors for each follower ultimately bounded. The closed-loop systems are investigated by using the combination of graph theory, Lyapunov theory, and Barbalat Lemma. Numerical examples and comparisons with other methods are provided to show the effectiveness of the proposed control strategies. | yanchao sun wenjia wang guangfu ma zhuo li chuanjiang li | 2016 | Journal of Systems Engineering and Electronics2016，27，5： | 4 |
| 5 | First experimental constraints on WIMP couplings in the effective field theory framework from CDEX显示文摘We present weakly interacting massive particles(WIMPs) search results performed using two approaches of effective field theory from the China Dark Matter Experiment(CDEX), based on the data from both CDEX-1B and CDEX-10 stages. In the nonrelativistic effective field theory approach, both time-integrated and annual modulation analyses were used to set new limits for the coupling of WIMP-nucleon effective operators at 90% confidence level(C.L.) and improve over the current bounds in the low mχregion. In the chiral effective field theory approach, data from CDEX-10 were used to set an upper limit on WIMP-pion coupling at 90% C.L. We for the first time extended the limit to the m_(χ)<6 GeV/c^(2) region. | Yi Wang Zhi Zeng Qian Yue LiTao Yang KeJun Kang YuanJing Li Mehment Agartioglu HaiPeng An JianPing Chang JingHan Chen YunHua Chen JianPing Cheng Cheng Yi Chiang WenHan Dai Zhi Deng ChangHao Fang XinPing Geng Hui Gong QiuJu Guo XuYuan Guo HongJian He Li He ShengMing He JinWei Hu TuChen Huang HanXiong Huang HaiTao Jia LiPing Jia Xi Jiang HauBin Li JianMin Li Jin Li MingXuan Li RenMingJie Li Xia Li YuLan Li Bin Liao FongKay Lin ShinTed Lin ShuKui Liu YanDong Liu Yu Liu YuanYuan Liu ZhongZhi Liu Hao Ma YuCai Mao QiYuan Nie JinHua Ning Hui Pan NingChun Qi Jie Ren XiChao Ruan ChangSong Shang Vivek Sharma Ze She Lakhwinder Singh Monoj Kumar Singh TianXi Sun ChangJian Tang WeiYou Tang Yang Tian GuangFu Wang Li Wang Qing Wang Yu Chen Wang YunXiang Wang Zhen Wang Henry Tsz-King Wong ShiYong Wu YuCheng Wu HaoYang Xing Yin Xu Tao Xue YuLu Yan Nan Yi ChunXu Yu HaiJun Yu JianFeng Yue Ming Zeng BingTao Zhang Lei Zhang FengShou Zhang ZhenYu Zhang KangKang Zhao MingGang Zhao JiFang Zhou ZuYing Zhou JingJun Zhu | 2021 | Science China(Physics,Mechanics & Astronomy)2021，64，8： | 3 |
| 6 | Sedimentary Facies, Provenance and Geochronology of the Heshangzhen Group: Implications for the Tectonic Evolution of the Eastern Jiangnan Orogen, South China显示文摘The Neoproterozoic Jiangnan orogen plays an important role in the study of the Precambrian tectonic evolution of South China. The tectonic nature of the Neoproterozoic sedimentary basins is still controversial, due to poor understanding of the sedimentary sequences and the lack of geochronological data. Here, we present sedimentological, provenance and geochronological data from the Heshangzhen Group in the eastern Jiangnan orogen. Sedimentological analysis shows that the Luojiamen Formation was deposited in a submarine fan, and the overlying Hongchicun Formation was deposited in front of a fan delta. The youngest detrital zircons constrain the lower Luojiamen and Hongchicun formations with ages of 827.3 ± 8.4 Ma and 825 ± 12 Ma, respectively. The sandstones of the Luojiamen Formation are characterized by a large number of intermediate to felsic volcanic grains, suggesting a volcanic arc source. In contrast, quartz and sedimentary lithic grains increase in the Hongchicun Formation, showing a new input from a collisional orogenic source. Detrital zircon from six sandstone samples in the Luojiamen and Hongchicun formations yield similar age spectra of 930–820 Ma with a peak at ca. 845–860 Ma, with one main cluster at 930–820 Ma. Detrital zircons of 930–845 Ma show a positive value of εHf(t)(+2.4 to +11, mean +7.6), which is similar to the volcanic arc of the nearby Shuangxiwu Group. There are a minor group of zircons with U-Pb ages ranging from 820 Ma to 845 Ma from the middle part of the Luojiamen Formation and Hongchicun Formation, with εHf(t) values between-20 to +2.4, which are consistent with the characteristics of the Shuangqiaoshan Group. within light of the bidirectional paleocurrents in the Luojiamen Formation, it is speculated that the zircons of 820–845 Ma were recycled from the Shuangqiaoshan Group, which is derived from a continental arc to the northwest. Our data suggests that the Luojiamen Formation was formed in an inter-arc basin, while the Hongchicun Formation was formed in an accretionary wedge-top basin. When juxtaposed with the conglomeratic characteristics at the bottom of the Luojiamen Formation, it is believed that the unconformity represented by the ‘Shen Gong Movement' reflects the rapid erosion and accumulation process of island arc volcanic material. The disconformity between the Luojiamen and Hongchicun formations is the imprint of transition from inter-arc basin to accretionary wedge-top basin,which represents the collision between the Shuangxiwu arc and the Yangtze Plate. | ZHOU Xiaohua HU Xiumian JIANG Ren GAO Tianshan MA Xue XING Guangfu SUN Gaoyuan SHU Xujie ZHAO Xilin | 2020 | Acta Geologica Sinica(English Edition)2020，94，4： | 2 |
| 7 | Dynamic responses of hydraulic crane during luffing motion 显示文摘 | SUN Guangfu LIU Jie | 2006 | Mechanism and Ma- chine Theory2006，41，11： | 1 |
| 8 | Dynamic responses of hydraulic mobile crane with consideration of the drive system 显示文摘 | Guangfu Sun Michael Kleeberger | 2003 | Mechanism and Machine Theory2003，38，： | 1 |
| 9 | Geochemical and zircon U-Pb and Hf isotopic study of the Baijuhu@an metaluminous A-type granite: Extension at 125-100 Ma and its tectonic significance for South China 显示文摘 | Wong J Sun Min Xing Guangfu Li Xian-hua Zhao Guochun Wong K Yuan Chao Xia Xiaoping Li Longming Wu Fuyuan | 2009 | Lithos2009，112，34： | 1 |
| 10 | Complet-e dynamic calculation of lattice mobile crane during hoisting motion显示文摘 | Sun Guangfu Michael Kleeberger Liu Jie | 2005 | Mechanism and machine theory2005，40，4： | 1 |
| 11 | A highprecision time interval measurement method using phase-estimation algorithm显示文摘 | Zhu Xiangwei Sun Guangfu Yong Shaowei | 2008 | IEEE Transactions on Instrumentation and Measurement Instrumentation and Measurement2008，57，11： | 1 |
| 12 | Dynamic responses of hydraulic mobile crane with consideration of the drive system 显示文摘 | SUN Guangfu KLEEBERGER M | 2003 | Mechanism and Machine Theory2003，，38： | 1 |
| 13 | Dynamic responses of hydraulic crane during luffing motion显示文摘 | Sun Guangfu Liu Jie | 2006 | Mechanism and Machine Theory2006，41，11： | 1 |
| 14 | A New Method of Small Moving Target Detection and Its Performance Analysis显示文摘This paper describes a new method of small moving target detection and analyzes the performance of this algo-rithm. The method is based on multi-level threshold decision-making and sliding trajectory confidence testing technology.The parameters of the algorithm are also given. Experiments have been conducted, the results show that the algorithm hasadvantages of high detection probability, simple structure, and excellent real-time performance. | Chen Huaming, Sun Guangfu, Lu Huanzhang & Chang Qing ATR Lab. National University of Defense Technology, Changsha, 410073, P. R. China | 2002 | Journal of Systems Engineering and Electronics2002，13，4： | 1 |
| 15 | Re: Monopolar versus Bipolar Transurethral Resection of Bladder Tumors: A Single Center, Parallel Arm, Randomized, Controlled Trial显示文摘 | Shengkun Sun Axiang Xu Guangfu Chen Xu Zhang | 2015 | The Journal of Urology2015，，： | 1 |
| 16 | Dynamic response of hydraulic mobile crane with consideration of the drivesystem显示文摘 | SUN Guangfu MICHANEL K | 2003 | Mechanism and Machine Theory2003，38，： | 1 |
| 17 | Dynamic responses of hydraulic crane during luffing motion 显示文摘 | SUN Guangfu LIU Jie | 2006 | Mechanism and Machine Theory2006，41，11： | 1 |
| 18 | Dynamic rensponses of hydaulic mobile crane with consideration of the drive system 显示文摘 | Sun Guangfu Kleeberger Michael | 2002 | Mechanism and Machine Theory2002，，12： | 1 |
| 19 | Dynamic response of hydraulic mobile crane with consideration of the drive system显示文摘 | SUN Guangfu MICHANEL K | 2003 | Mechanism and Machine Theory2003，38，： | 1 |
| 20 | Complete dynamic calculation of lattice mobile crane during hoisting motion显示文摘 | Guangfu Sun Michael Kleeberger Jie Liu | 2004 | Mechanism and Machine Theory2004，，4： | 1 |
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