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| 1 | Composition Modeling and Equivalence of an Integrated Power Generation System of Wind, Photovoltaic and Energy Storage Unit显示文摘利用间接组合建模的方法,在建立典型的双馈风机、光伏发电单元和储能单元的装置级机电暂态模型基础上,采用等值方法建立三者电站级的机电暂态模型,最终通过组合建模得到了风光储联合发电系统的机电暂态模型。在大型电力系统分析软件包的PSD-BPA暂态稳定程序中实现了风光储联合发电系统的仿真功能,通过典型算例和张北"国家风光储输示范工程"的仿真分析验证了模型的正确性,为风光储联合发电系统的并网研究提供了分析手段。 | WANG Haohuai TANG Yong HOU Junxian ZOU Jiangfeng LIANGShuang SU Feng | 2011 | 中国电机工程学报2011,31,34: | 66 |
| 2 | Reconstruction of May——July precipitation in the north Helan Mountain, Inner Mongolia since A.D. 1726 from tree-ring late-wood widths显示文摘By analyzing statistical characteristics of five tree-ring standard chronologies, early-wood ring width (EWW), late-wood ring width (LWW), total ring width (TRW), minimum early-wood density (MinD), maximum late-wood density (MaxD) and, their climatic response re-spectively, we reconstructed the May to July precipitation using late-wood ring width (LWW) over the north Helan Mountain since A.D. 1726. The explained variance is 42% (R2adj = 41%, F = 31.46, p < 0.000001). After 11-a moving average, the explained variance reaches 82% (F = 156.9, p < 0.05). On the decadal scale, the rainfall reconstruction of the northern Helan Mountain displays a quite similar variation pattern with that of the April to early July precipitation in Baiyinaobao, east of Inner Mongolia for the last 150 years. It may reflect the intensity variation of the East Asia Summer Monsoon front to a certain extent. Spectrum analysis shows 11-a and 22-a periodicities in the May to July precipitation reconstruction at the north Helan Mountain. | LIU Yu SHI Jiangfeng V. Shishov E. Vaganov YANG Yinke CAI Qiufang SUN Junyan WANG Lei I. Djanseitov | 2004 | Chinese Science Bulletin2004,49,4: | 29 |
| 3 | Zircon LA-ICP MS U-Pb Age,Sr-Nd-Pb Isotopic Compositions and Geochemistry of the Triassic Post-collisional Wulong Adakitic Granodiorite in the South Qinling,Central China,and Its Petrogenesis显示文摘摘要:Indosinian post-collisional Wulong pluton 侵入了进 Mesoproterozoic Fuping 组,南方 Qinling,华中。在 pluton 的南部的部分,一些 mafic 被外国领地包围的土地与主人黑云母 granodiorite 有锋利或有等级的接触关系。地球化学,锆石 LA-ICP MS (激光脱离诱导地联合的血浆团 spectrometry ) pluton 的 U-Pb 年表和 Sr-Nd-Pb 同位素地球化学在这份报纸被报导。黑云母 granodiorite 表演关上组合类似到高硅石的 adakite。它的使球粒状陨石正常化的 REE 模式被强壮的 HREE 弄空描绘(Yb = 0.33-0.96 10 ? 6 并且 Y = 4.77-11.19 预定 10 ? 6 ) , Ba 的丰富(7751386 times10 ? 6 ) 并且 Sr (6431115 ?? | QIN Jiangfeng LAI Shaocong WANG Juan LI Yongfei | 2008 | Acta Geologica Sinica(English Edition)2008,82,2: | 21 |
| 4 | Status and development of high-power laser facilities at the NLHPLP显示文摘In this paper, we review the status of the multifunctional experimental platform at the National Laboratory of High Power Laser and Physics(NLHPLP). The platform, including the SG-II laser facility, SG-II 9th beam, SG-II upgrade(SG-II UP) facility, and SG-II 5 PW facility, is operational and available for interested scientists studying inertial confinement fusion(ICF) and a broad range of high-energy-density physics. These facilities can provide important experimental capabilities by combining different pulse widths of nanosecond, picosecond, and femtosecond scales. In addition, the SG-II UP facility, consisting of a single petawatt system and an eight-beam nanosecond system, is introduced including several laser technologies that have been developed to ensure the performance of the facility. Recent developments of the SG-II 5 PW facility are also presented. | Jianqiang Zhu Jian Zhu Xuechun Li Baoqiang Zhu Weixin Ma Xingqiang Lu Wei Fan Zhigang Liu Shenlei Zhou Guang Xu Guowen Zhang Xinglong Xie Lin Yang Jiangfeng Wang Xiaoping Ouyang Li Wang Dawei Li Pengqian Yang Quantang Fan Mingying Sun Chong Liu Dean Liu Yanli Zhang Hua Tao Meizhi Sun Ping Zhu Bingyan Wang Zhaoyang Jiao Lei Ren Daizhong Liu Xiang Jiao Hongbiao Huang Zunqi Lin | 2018 | High Power Laser Science and Engineering2018,6,4: | 8 |
| 5 | Generation of 33 fs pulses directly from a Kerr-lens mode-locked Yb:CaYAlO4 laser显示文摘We experimentally demonstrated a diode-pumped Kerr-lens mode-locked femtosecond laser with a Yb:CaYAlO4 crystal as the gain medium. Pulse duration as short as 33 fs was obtained directly from the oscillator at a repetition rate of 115 MHz. The central wavelength was at 1059 nm with a spectral bandwidth of 49 nm. These are, to the bestof our knowledge, the shortest pulses generated from a Yb:CaYAlO4 oscillator. | Ziye Gao Jiangfeng Zhu Junli Wang Zhiyi Wei Xiaodong Xu Lihe Zheng Liangbi Su Jun Xu | 2015 | Photonics Research2015,3,6: | 8 |
| 6 | Successful embryo transfer in Tianzhu white yak using standard protocol显示文摘The present study was carried out to investigate the efficiency of superovulation, oestrus synchroni-zation, and embryo recovery in Tianzhu white yaks and also to confirm the pregnancy rate of black yaks, to which embryos collected from white yaks were transplanted. Forty-seven yaks were selected from different experiment groups, including 10 Tianzhu white female yaks (donor, group A) and 37 black female yaks (recipient, groups B and C). Superovulation of the donor was induced by the application procedure of CIDR-B + FSH + PG. Oestrus synchronization of recipients was induced using two meth-ods: group B was given the same treatment as group A, except that the follicle-stimulating hormone (FSH) injection was not administered, whereas group C was injected with cloprostenol only once when corpus luteum (corpora lutea) was (were) palpated. The results showed that the oestrous rates in group A were higher (80%) than those in group B (60%) and group C (44.5%). As for the efficiency of su-perovulation, it was indicated that the mean numbers (±SD) of total corpora lutea, follicles, viable (transferable), and degenerated embryos were 4.75 ± 2.19, 1.13 ± 0.83, 2.50 ± 1.31, and 1.38 ± 0.92, re-spectively. The mean embryo recovery rates were 55.6%. All together, 18 viable embryos of Tianzhu white yak were obtained and 12 of them were transplanted to 10 recipients. The pregnancy rate was 50% and the delivery rate was 40%. | YU SiJiu JU XiangHong WANG LiBin FAN JiangFeng | 2007 | Science China(Life Sciences)2007,50,5: | 7 |
| 7 | CO_2/CH_4 and CH_4/N_2 separation on isomeric metal organic frameworks显示文摘Two isomeric metal-organic frameworks(MOFs) with 2-dimensional(2D) and 3-dimensional(3D) topologies both comprised of Cu(Ⅱ) and OTf(OTf = trifluoromethanesulfonate) ions were synthesized and characterized.The CO_2,CH_4 and N_2 adsorption properties of the two isomeric MOFs were investigated from 263 K to 298 K at0.1 MPa.The results showed that the 2D MOF exhibited a higher selectivity for CO_2 from CO_2/CH_4 and CH_4from CH_4/N_2 compared to the 3D MOF,even though it possessed a lower surface area and pore volume.The higher adsorption heats of gases on the 2D MOF inferred the strong adsorption potential energy in the layered MOFs.Dynamic separation experiments using CO_2/CH_4 and CH_4/N_2 mixtures on the two MOFs proved that the2 D MOF had a longer elution time than the 3D MOF as well as better separation abilities. | Xiaoqing Wang Libo Li Jiangfeng Yang Jinping Li | 2016 | Chinese Journal of Chemical Engineering2016,24,12: | 6 |
| 8 | Innovative endoscopic enucleations of the prostate--Xie’s Prostate Enucleations显示文摘In the past 2 decades,endoscopic enucleation of the prostate has become a safe and effective surgical treatment for benign prostatic hyperplasia(BPH),with comparable outcomes to traditional surgeries.Transurethral vapor enucleation and resection of the prostate(TVERP),transurethral vapor enucleation of the prostate(TVEP),and ultrasound-navigated TVEP(US-TVEP)are new,innovative endoscopic enucleation procedures.These procedures are named Xie’s Prostate Enucleations(Xie’s Procedures for short).Current clinical data indicate that Xie’s Procedures are safe and effective treatment options for patients with BPH,especially for patients with larger prostates.Further prospective,randomized clinical trials compared with traditional transurethral resection of prostate(TURP)are still needed. | Liping Xie Xiao Wang Hong Chen Xiangyi Zheng Ben Liu Shiqi Li Yeqing Mao Qiqi Mao Song Wang Jiangfeng Li Tillmann Loch | 2018 | Asian Journal of Urology2018,5,1: | 6 |
| 9 | Determination of full-scale pore size distribution of Gaomiaozi bentonite and its permeability prediction显示文摘Gaomiaozi(GMZ)bentonite is a potential buffer/backfill material for a deep geological disposal of highlevel radioactive waste.It has a wide pore size distribution(PSD)with sizes ranging from several nanometers to more than one hundred microns.Thus,properly characterizing the pore structures of GMZ bentonite is a challenging issue.In this study,pressure-controlled porosimetry(PCP),ratecontrolled porosimetry(RCP),and scanning electron microscopy(SEM)were used to investigate the PSD of GMZ bentonite,The results indicate that each method has its limitation,and a combined use of PCP and RCP is suitable to obtain the full-scale PSD of GMZ bentonite.Moreover,we also compared the full-scale PSD with nuclear magnetic resonance(NMR)result.It is found that there is no significant difference in the range of PSD characterization between NMR and mercury intrusion method(PCP and RCP).However,in a ce rtain range,the detection accuracy of NMR is higher than that of mercury injection method.Finally,permeability prediction based on PCP and SEM data was conducted,and both of the two methods were found to be able to predict the permeability.The combined method is effective to obtain the full-scale PSD of GMZ bentonite,which is the key to estimation of the sealing ability of bentonite buffer. | Jiangfeng Liu Shuaibing Song Xulou Cao Qingbin Meng Hai Pu Yangguang Wang Jianfeng Liu | 2020 | Journal of Rock Mechanics and Geotechnical Engineering2020,12,2: | 5 |
| 10 | Optimizing ultrasensitive single electron magnetometer based on nitrogen-vacancy center in diamond显示文摘The measurement of the weak magnetic field in nanoscale resolution and at room temperature is always a significant topic in biological, physical, and material science. Such detection can be used to decide the characterization of the samples, such as cells, materials, and so on. Nitrogen-vacancy (NV) center in diamond has been proved to be able to detect a magnetic field with nano Tesla sensitivity and nanometer resolution at room temperature. Here we experimentally demonstrate an optimized NV center based single electron magnetometer in a commercial diamond and under a home-built optically detected magnetic resonance (ODMR) microscope. With current technology, we change the optically detected time window to get a better signal to noise ratio, and use dynamical decoupling to increase the slope of magnetic field amplitude versus fluorescence signal. By employing the 8-pulse XY-4 dynamical decoupling sequence we achieve a sensitivity of 18.9 nT (Hz)(1/2) , which is 1.7 times better than spin echo. We also propose a NV center based scanning diamond microscope for electron and nuclear spins detection as well as nanoscale magnetic resonance imaging. If it is realized, the NV center based magnetometry will have wide application in the future. | WANG PengFei JU ChenYong SHI FaZhan DU JiangFeng | 2013 | Chinese Science Bulletin2013,58,24: | 5 |
| 11 | Experimental study on generation of high energy few cycle pulses with hollow fiber filled with neon显示文摘25 fs pulses with energy up to 0.8 mJ from a multi-pass amplifier system have been spectrally broadened from 460 nm to 950 nm due to strong self-phase modulation(SPM) effect in a gas filled hollow fiber.Using a set of chirped mirrors,the ul-tra-broadband dispersion compensation was achieved,and the compressed pulses reached their transform limit.Under optimized conditions we achieved pulses with duration of 5.1 fs and with energy of 400 μJ,corresponding to the peak power up to 80 GW. | ZHU JiangFeng WANG Peng HAN HaiNian TENG Hao WEI ZhiYi | 2008 | Science China(Physics,Mechanics & Astronomy)2008,51,5: | 5 |
| 12 | Changes and correlation of microorganism and flavor substances during persimmon vinegar fermentation显示文摘To investigate the microbial diversity and the change of the flavor substances during the traditional natural persimmon vinegar fermentation,two group samples from alcohol fermentation stage(A)and acetic acid fermentation stage(B)were analyzed.The results showed that Burkholderia,Lactobacillus,Acetobacter,Komagataeibacter were the main bacteria,and the major fungi were Saccharomyces,Hanseniaspora,Hortaea,and Cladosporium at the genus level.The contents of flavonoids and polyphenols in B increased by 17.91%and 26.59%compared with A,respectively.The superoxide anion scavenging activity significantly increased by 20.15%.The contents of total free amino acids were 5709.99±410.36 mg/L and 5736.16±472.02 mg/L,and the total contents of 9 organic acids were 19.89±1.20 g/L and 33.77±2.49 g/L in samples A and B,respectively.Pearson correlation analysis showed that 11 flavor compounds were related to Lactobacillus and Leuconostoc;8 and 10 compounds were respectively related to Komagataeibacter and Acetobacter;13 and 19 flavor compounds were respectively associated with Saccharomyces and Monascus.Orthogonal Partial Least Square(OPLS)model showed that the contents of Leu,Lys,and lactic acid were mainly associated with fungi,andγ-aminobutyric acid(GABA)content was correlated with Lactobacillus,Acetobacter,Leuconostoc,and Saccharomyces.This study revealed the relationship between microbial diversity and flavor compounds in persimmon vinegar produced by spontaneous fermentation.The results can provide a theoretical support for the safety and health assessment of persimmon vinegar. | Dahong Wang Mengyang Wang Luwei Cao Xiaotong Wang Jianrui Sun Jiangfeng Yuan Shaobin Gu | 2022 | Food Bioscience2022,46,2: | 4 |
| 13 | Dynamical decoupling of electron spins in phosphorus-doped silicon显示文摘Quantum coherence is an important enabling feature underpinning quantum computation. However, because of couplings with its noisy surrounding environment, qubits suffer from the decoherence effects. The dynamical decoupling (DD) technique uses pulse-induced qubit flips to effectively mitigate couplings between qubits and environment. Optimal DD eliminates dephasing up to a given order with the minimum number of pulses. In this paper, we first introduce our recent work on prolonging electron spin coherence in γ-irradiated malonic acid crystals and analyze different decoherence mechanisms in this solid system. Then we focus on electron spin relaxation properties in another system, phosphorous-doped silicon (Si:P) crystals. These properties have been investigated by pulse electron paramagnetic resonance (EPR). We also investigate the performance of the dynamical decoupling technique on this system. Using 8-pulse periodic DD, the coherence time can be extended to 296 μs compared with 112 μs with one-pulse control. | RONG Xing WANG Ya YANG JiaHui ZHU JinXian XU WanJie FENG PengBo WEN XuJie SU JiHu DU JiangFeng | 2011 | Chinese Science Bulletin2011,56,7: | 4 |
| 14 | Geochemical characteristics of Bikou volcanic group and Sr-Nd-Pb isotopic composition: Evidence for breakup event in the north margin of Yangtze plate, Jining era显示文摘The geodynamic setting of the Bikou volcanic group is a critical question to trace the Precambrain tectonic framework and evolution for the Yangtze plate. This study has suggested that the Bikou volcanic group is composed of several residual oceanic crust units: MORB (mid-ocean ridge basalt), Alk-OIB (alkaline ocean island basalt) and Th-OIB (tholeiitic ocean island basalt) as well as subduction-related volcanic rocks. According to field observation, those distinct rocks occurred collectively in form of tectonic contact, implying that the Bikou volcanic group was an ophiolitic mélange. Coupled with geochronological data, a perished oceanic basin at the northern margin of the Yangtze block during Neoproterozoic was tested by this ophiolitic mélange. Meanwhile, the isogeochemical data suggest that the ocean occurred in the Southern Hemisphere identical to Indian, South Atlantic and South Pacific oceans in terms of their Dupal anomalies, and the original source of the rocks could be probably mixing by EMⅠand EMⅡ component caused by dehydration melting of subducting oceanic crust during subduction process. On the basis of geochemical characteristics of the studied rocks, the Bikou volcanic group could imply that a partial breakup event occurred in the northern margin of Yangtze plate during the Neoproterozoic era. | LI YongFei LAI ShaoCong QIN JiangFeng LIU Xin WANG Juan | 2007 | Science China Earth Sciences2007,50,z2: | 4 |
| 15 | Clear-water local scouring around three piers in a tandem arrangement显示文摘Experiments of local scouring around three piers were carried out under steady clear-water conditions. We investigated the role of pier spacing and flow rate in scour depth and progression. The scour-hole depth around the upstream pier was the same as that for single piers and independent of pier spacing. The scour behavior of the middle and downstream piers progressed through a synchronous scouring region, a transition region, and a radical deviation region as the fluid velocity increased. The critical velocity from the synchronous scouring region to the transition region for the middle and downstream piers was the same, which linearly increased with pier spacing. The degree of deviation in the radical deviation region for the middle and downstream piers was dependent on the pier spacing. The critical velocity from the transition region to the radical deviation region for the middle pier increased with the pier spacing. When the spacing was larger than 11 times the diameter of a pier, the scour depths of the three-pier configuration were the same as for the single piers, which indicates the limit of inter-pier fluid–structure interaction. Finally, the data from this study are used to derive adjustment factors to predict the local scour depth around three piers. | WANG Hao TANG HongWu XIAO JiangFeng WANG Yao JIANG Sheng | 2016 | Science China(Technological Sciences)2016,59,6: | 3 |
| 16 | Comparison of nominal and standardized catch per unit effort data in quantifying habitat suitability of skipjack tuna in the equatorial Pacific Ocean显示文摘In the western and central Pacific Ocean,upper strata waters exhibit highly dynamic oceanographic features under ENSO variability.This has been proved to be responsible for the dynamic change of both abundance and zonal distribution of skipjack tuna(Katsuwonus pelamis).Although causality has been suggested by researchers using physical-biological interaction models,cumulative evidence needs to be obtained and the tenability of assertion needs to be tested from an ecological habitat perspective,based on fisheries data.For purse seine fishery,the use of catch per unit effort(CPUE)as an indication of the abundance is confusing because of technical improvements over the whole exploitation history and unbalanced individual fishing characteristic of vessels.It is particularly interesting to discriminate between habitat characteristics in comparative scenarios of CPUE application.This study identified habitat traits based on a series of oceanographic factors from a global ocean reanalysis model.A comparison was conducted between two habitat models based on unprocessed purse seine CPUE and standardized CPUE considering fishing characteristics.The results suggest that standardized CPUE could model the regular zonal shift of habitat compatible with the observed fishing efforts transfer,and achieved better prediction capacity than unprocessed CPUE.Furthermore,the habitat of skipjack tuna was also characterized and linked with surface and subsurface thermal environment,ocean current,dissolved oxygen,biotic environment,and ENSO variability.The monthly-averaged habitat suitable index,derived from the optimal habitat model prediction,showed a significant linear relationship with the southern oscillation index,which suggested that El Ni?o episodes eventually provide more preferable habitat for skipjack tuna under ENSO variability. | Cheng Zhou Yuanyuan Hu Jie Cao Liuxiong Xu Xuefang Wang Rong Wan Yu Xiao Jiangfeng Zhu Hao Tang | 2022 | Acta Oceanologica Sinica2022,41,3: | 3 |
| 17 | Progress of the injection laser system of SG-Ⅱ显示文摘A high power laser system was used to drive the ignition of inertial confinement fusion(ICF), of which the high energy,the uniform focal spot, the accurate laser waveform, and the synchronization between the laser beams are key parameters.To accomplish this, global laser characteristics control should be assured, which was the main purpose of the injection laser system. In this paper, the key technological progress involved in the improvement of the performance of the injection laser of SG-II is reported, including frequency domain control, time domain control, near-field spatial shaping, preamplifier technology, and the optical parametric chirped pulse amplification pump source. | Wei Fan Youen Jiang Jiangfeng Wang Xiaochao Wang Dajie Huang Xinghua Lu Hui Wei Guoyang Li Xue Pan Zhi Qiao Chao Wang He Cheng Peng Zhang Wenfa Huang Zhuli Xiao Shengjia Zhang Xuechun Li Jianqiang Zhu Zunqi Lin | 2018 | High Power Laser Science and Engineering2018,6,2: | 3 |
| 18 | Synthesis and characterization of BiFeO_3 nanotube arrays and Y-junction BiFeO_3 nanotubes显示文摘Multiferroic BiFeO3 (BFO) nanotube arrays (~100 nm in diameter and ~50 μm in length) were synthesized by the sol-gel method utilizing the anodic aluminum oxide (AAO) membrane technique. The micro-structure and chemical components of the BFO nanotubes were investigated using scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectrometer (XPS). The BFO nanotubes exhibited polycrystalline microstructures. The novel Y-junction BFO nano-tubes were simultaneously fabricated. | LI ChunYang LIU Bing ZHAO JianPo WANG JiangFeng HU BinBin DU ZuLiang | 2009 | Chinese Science Bulletin2009,54,5: | 3 |
| 19 | Numerical Simulation for Thermal Distribution of Air-conditioner Outdoor Units显示文摘Air-conditioners used in high-rise residential or office buildings often have outdoor units installed on the side-walls or roofs in the confined space of the buildings.The heat released from the outdoor units causes the tem-perature rise in the confined installation space and leads to uncomfortable thermal environment and deteriorative performance of air-conditioners.The factors affecting the performance of air-conditioners are the heat released from the outdoor units,the solar radiation and the ventilation of the confined installation space,which are inves-tigated in this study and simulated by FLUENT using the porous model and discrete ordinates (DO) radiation model.It is proved that the porous model is more reliable than the solid model.The optimal installation distance from the supporting wall is obtained.The average temperature of the exit without wind is 1.18% higher than that with wind.The results show that the heat released from the outdoor units and the ventilation of the confined in-stallation space are the main factors affecting the thermal environment in the confined installation space.The in-fluence of the solar radiation is negligible. | Li-Ge Tong Zhen Zhang Li Wang Shao-Wu Yin Jiangfeng Yu Chun Liu | 2012 | Journal of Thermal Science2012,21,3: | 3 |
| 20 | Computational prediction and experimental verification of miRNAs in Panicum miliaceum L.显示文摘MicroRNAs (miRNAs) are a class of non-coding RNAs that play critical roles in post-transcriptional regulation. Their target genes are involved in a variety of biological processes such as development, metabolism, and stress response. Panicum miliaceum L. (Panicum) is an important grain crop, but, until now, no miRNAs have been identified in this plant. Using a homology search based on expressed sequence tag (EST) analysis and miRNA precursor secondary structure, a total of 43 new miRNAs were identified. The miRNAs were found to be unevenly distributed among 11 miRNA families. Target analysis using the plant small RNA target analysis server psRNATarget showed that the newly identified miRNAs can potentially regulate 68 target genes. Ten of the 11 miRNA families were annotated as involved in RNA regulation, suggesting they may play an essential role in post-transcriptional regulation in Panicum. Selected miRNAs representing eight of the families were verified by northern blotting, indicating that the prediction method that we used to identify the miRNAs was effective. | WU YongJun DU JiangFeng WANG XiaoLong FANG XiaoFeng SHAN WeiXing LIANG ZongSuo | 2012 | Science China(Life Sciences)2012,55,9: | 2 |