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| 1 | Recent Trends and Recommendations for Nitrogen Fertilization in Intensive Agriculture in Eastern China显示文摘The Taihu Region in eastern China is one of China's most intensive agricultural regions and also one of the economically most developed areas. High nitrogen balance surpluses in the summer rice-winter wheat double-cropping systems are leading to large-scale non-point source pollution of aquifers. In an interdisciplinary approach, four-year (1995-1998) field trials were carried out in two representative areas (Jurong County and Wuxi City) of the Taihu Region. Five farmers' field sites were chosen in each of the 2 locations, with each site divided into 'standard' (farmers' practice) and 'reduced' (by 30%-40%) N fertilization. For both fertilization intensities, N balance surpluses and monetary returns from grain sales minus fertilizer expenditures were calculated in an economic assessment. Based on the field trials, the mineral N fertilizer application rates reduced by about 10% for rice and 20%-30% for wheat were recommended in 1999. Since 1999, the research focused on the trends in N fertilizer application rates and changes in grain and agricultural commodities prices.Summer rice N fertilizer use, in Wuxi City as of 2001, dropped by roughly 25%, while for winter wheat it decreased by 10%-20%, compared to the 1995-1998 period. This has been achieved not only by grain policy and price changes, but also by an increased environmental awareness from government officials. Nitrogen balance surpluses in Anzhen Town (of Wuxi City) have consequently diminished by 50%-75% in rice and by up to 40% in wheat, with reductions being achieved without concomitant decreases in physical grain yields or returns from sales minus fertilizer costs. | M.ROELCKE HANYong K.H.SCHLEEF ZHUJian-Guo LIUGang CAIZu-Cong J.RICHTER | 2004 | Pedosphere2004，14，4： | 54 |
| 2 | Compositions of Upper Mantle Fluids Beneath Eastern China: Implications for Mantle Evolution显示文摘The composition of gases trapped in olivine, orthopyroxene and clinopyroxene in lherzolite xenoliths collected from different locations in eastern China has been measured by the vacuum stepped-heating mass spectrometry.These xenoliths are hosted in alkali basalts and considered as residues of partial melting of the upper mantle, and may contain evidence of mantle evolution. The results show that various kinds of fluid inclusions in lherzolite xenoliths have been released at distinct times, which could be related to different stages of mantle evolution. In general, primitive fluids of the upper mantle (PFUM) beneath eastern China are dominated by H2, CO2 and CO, and are characterized by high contents of H2 and reduced gases. The compositions of PFUM are highly variable and related to tectonic settings. CO, CO2 and H2 are the main components of the PFUM beneath cratons; the PFUM in the mantle enriched in potassic metasomatism in the northern part of northeastern China has a high content of H2, while CO2 and SO2 are the dominant components of the PFUM in the Su-Lu-Wan (Jiangsu-Shandong-Anhui) region, where recycled crustal fluids were mixed with deeper mantle components. There are several fluids with distinct compositions beneath eastern China, such as primitive fluids of upper mantle (CO, CO2 and H2), partial melting fluids (CO2 and CO) and metasomatic fluids mixed with recycled crustal fluids (CO2, N2, 8O2 and CH4) etc. Fluids of the upper mantle beneath the North China craton are different from that of the South China craton in total gases and chemical compositions: the contents of the reduced gases of the PFUM in the NCC are higher than those in the SCC. | ZHANGMingjie WANGXianbin LIUGang ZHANGTongwei BOWenrui | 2004 | Acta Geologica Sinica(English Edition)2004，78，1： | 17 |
| 3 | Dietary encapsulated essential oils and organic acids mixture improves gut health in broiler chickens challenged with necrotic enteritis显示文摘Background:The poultry industry is in need of effective antibiotic alternatives to control outbreaks of necrotic enteritis(NE)due to Clostridium perfringens.In the present study,we investigated the effects of dietary supplementation with a blend of encapsulated essential oils and organic acids(BLJ)on growth performance and gut health using a coinfection model of NE in broiler chickens.Methods:Two hundred and eighty-eight one-day-old male Arbor Acres broiler chicks were randomly assigned using a 2×2 factorial design into two groups fed either 0 or 500 mg/kg dietary BLJ and co-challenged(or not challenged for the control)with Eimeria spp./C.perfringens.Results:Infected birds fed the BLJ-supplemented diet exhibited an improved feed conversion ratio throughout the trial(P<0.01),a higher villus height and villus height/crypt depth ratio,and reduced intestinal C.perfringens counts,liver C.perfringens carriage,gut lesion scores and serum fluorescein isothiocyanate dextran(FITC-D)concentrations at 7 d postinfection compared with those of birds without BLJ supplementation(P<0.05).NE-infected birds fed BLJ exhibited significantly upregulated claudin-1 and IGF-2 mRNA levels(P<0.05),increased A20 mRNA expression and significantly downregulated TRAF-6,TNFSF15 and TOLLIP mRNA levels in the jejunum at 7 d post-infection compared with those in birds without BLJ supplementation(P<0.05).Compared with the uninfected and untreated birds,the uninfected birds fed BLJ displayed increased relative abundances of Lactobacillus and Coprococcus but reduced Rikenellaceae levels.Compared with the unsupplemented NE-challenged birds,infected birds fed BLJ showed an increased relative abundance of Unclassified_Lachnospiraceae and a significantly decreased relative abundance of Erysipelotrichaceae.Conclusion:BLJ supplementation improved growth performance and gut health in NE-infected broiler chickens by strengthening the intestinal barrier function,positively modulating the gut microbiota community and differentially regulating intestinal immune responses.Our results also suggested that adding BLJ effectively controlled NE infections after experimental Eimeria and Clostridium perfringens coinfection. | Van Hieu Pham Liugang Kan Jinyu Huang Yanqiang Geng Wenrui Zhen Yuming Guo Waseem Abbas Zhong Wang | 2020 | Journal of Animal Science and Biotechnology2020，11，3： | 8 |
| 4 | Review of cavity optomechanics in the weak-coupling regime: from linearization to intrinsic nonlinear interactions显示文摘Recently, cavity optomechanics has become a rapidly developing research field exploring the coupling between the optical field and mechanical oscillation. Cavity optomechanical systems were predicted to exhibit rich and nontrivial effects due to the nonlinear optomechanical interaction. However, most progress during the past years have focused on the linearization of the optomechanical interaction, which ignored the intrinsic nonlinear nature of the optomechanical coupling. Exploring nonlinear optomechanical interaction is of growing interest in both classical and quantum mechanisms, and nonlinear optomechanical interaction has emerged as an important new frontier in cavity optomechanics. It enables many applications ranging from single-photon sources to generation of nonclassical states. Here, we give a brief review of these developments and discuss some of the current challenges in this field. | XIONG Hao SI LiuGang LV XinYou YANG XiaoXue WU Ying | 2015 | Science China(Physics,Mechanics & Astronomy)2015，58，5： | 5 |
| 5 | Remote Sensing Image Segmentation with Probabilistic Neural Networks显示文摘This paper focuses on the image segmentation with probabilistic neural networks (PNNs). Back propagation neural networks (BpNNs) and multi perceptron neural networks (MLPs) are also considered in this study. Especially, this paper investigates the implementation of PNNs in image segmentation and optimal processing of image segmentation with a PNN. The comparison between image segmentations with PNNs and with other neural networks is given. The experimental results show that PNNs can be successfully applied to image segmentation for good results. | LIUGang | 2005 | Geo-Spatial Information Science2005，8，1： | 4 |
| 6 | Synthesis,Characterization and Photocatalytic Activity of TiO_2 Film/Bi_2O_3 Microgrid Heterojunction显示文摘TiO2 film modified by Bi2O3 microgrid array was successfully fabricated by using a microsphere lithography method.The structure and morphology of TiO2 film,Bi2O3 film and TiO2 film/Bi2O3 microgrid heterojunction were characterized through X-ray diffraction,atomic force microscopy and scanning electron microscopy.The optical transmittance spectra and the photocatalytic degradation capacity of these samples to rhodamine B were determined via ultraviolet-visible spectroscopy.The results indicated that the coupled system showed higher photocatalytic activity than pure TiO2 and Bi2O3 films under xenon lamp irradiation.The enhancement of the photocatalytic activity was ascribed to the special structure,which could improve the separation of photo-generated electrons and holes,enlarge the surface area and extend the response range of TiO2 film from ultraviolet to visible region. | Liugang Wang Junying Zhang Chunzhi Li Hailing Zhu Wenwen Wang Tianmin Wang | 2011 | Journal of Materials Science & Technology2011，27，1： | 3 |
| 7 | 显示文摘 | LiuZuyan(刘祖岩) LiuGang(刘刚) LiangShujin(梁书锦) | 2007 | 稀有金属材料与工程2007，36，3： | 2 |
| 8 | In Situ Synthesis of Nanocrystalline Intermetallic Compound Layer during Surface Mechanical Attrition Treatment of Zirconium显示文摘The surface mechanical attrition treatment (SMAT) technique was developed to synthesize a nanocrystalline (NC) layer on the surface of metallic materials for upgrading their overall properties and performance. In this paper, by means of SMAT to a pure zirconium plate at the room temperature, repetitive multidirectional peening of steel shots (composition (wt%): 1C, l.SCr, base Fe) severely deformed the surface layer. A NC surface layer consisting of the intermetallic compound FeCr was fabricated on the surface of the zirconium. The microstructure characterization of the surface layer was performed by using X-ray diffraction analysis, optical microscopy, scanning and transmission electron microscopy observations. The NC surface layer was about 25 urn thick and consisted of the intermetallic compound FeCr with an average grain size of 25±10 nm. The deformation-induced fast diffusion of Fe and Cr from the steel shots into Zr occurred during SMAT, leading to the formation of intermetallic compound. In addition, the NC surface layer exhibited an ultrahigh nanohardness of 10.2 GPa. | SUNCai-yun XIEJi-jia WUXiao-lei HONGYou-shi LIUGang LUJian LUKe | 2004 | 材料热处理学报2004，25，05B： | 2 |
| 9 | 显示文摘 | SHIYou-ming LIUGang SUNYan-lin etal(时有明 刘刚 孙泡琳 等) | | 散射学报0，，： | 1 |
| 10 | 显示文摘 | TangJiancheng(唐建成) LeiChunpeng(雷纯鹏) LiuGang(刘刚)etal | 2014 | 稀有金属与硬质合金2014，43，5： | 1 |
| 11 | 显示文摘 | LIUFei LITing LIUGang(刘飞 李挺 刘刚) | | 光散射学报0，，： | 1 |
| 12 | Improving Throughput For TCP Vegas显示文摘To slove the problem that the implementation of Transmission Control Protocol (TCP) Vegas does not consider the impact of TCP’s segment size on Round-Trip Time (RTT) while calculating RTT and the smallest RTT (base _rtt), this paper proposes a modified congestion control mechanism for TCP Vegas. It first groups segments on the basis of segments size and updates base _rtt based on groups. In congestion avoidance phase, TCP Vegas changes its window size according to the measured RTT of the segment corresponding to the latest received ACK and the base _rtt retrieved from the group that the segment belongs to. Simulations illustrate that the enhanced TCP Vegas can achieve higher throughput up to 40 percent. | LIUGang ZHANGDe-yun LIUJing DINGHui-ning | 2004 | The Journal of China Universities of Posts and Telecommunications2004，11，2： | 1 |
| 13 | Did China Diversify Its Foreign Reserves? 显示文摘 | Liugang Sheng | 2013 | Journal of Applied Econometrics2013，28，1： | 1 |
| 14 | 显示文摘 | ZHOUZai-jin LIUGang RENXian-pei(周在进 刘刚 任先培) | 2009 | 激光与红外2009，39，11： | 1 |
| 15 | 显示文摘 | SHIYou-ming LIUGang SUNYan-lin etal(时有明 刘刚 孙艳琳 等) | 2010 | 光散射学报2010，22，2： | 1 |
| 16 | 显示文摘 | LIUFei YANGChun-yan LIUGang(刘飞 杨春艳 刘刚) | 2013 | 光谱学与光谱分析2013，33，11： | 1 |
| 17 | AdescripGtionofrheologicalmodelforgelledcrudeoilusingfracGtionalorderderivatives显示文摘 | WangZhifang ZhangGuozhong LiuGang | 2008 | JournalofChinaUniversityofPetroleum2008，32，2： | 1 |
| 18 | 显示文摘 | YuanShijian(苑世剑) LiuGang(刘钢) HeZhubing(何祝斌) etal | | 数字制造科学0，，： | 1 |
| 19 | Did China diversify its foreign reserves? 显示文摘 | Liugang Sheng | 2013 | Journal of Applied Econometrics2013，，1： | 1 |
| 20 | 显示文摘 | JIAMing-Jun(贾明君) LIUGang(刘钢) ZHANGMin(张敏) etal | 2008 | 黑龙江大学自然科学学报2008，25，： | 1 |
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