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| 1 | Sensitivity of ENSO Variability to Pacific Freshwater Flux Adjustment in the Community Earth System Model显示文摘The effects of freshwater flux(FWF) on modulating ENSO have been of great interest in recent years. Large FWF bias is evident in Coupled General Circulation Models(CGCMs), especially over the tropical Pacific where large precipitation bias exists due to the so-called 'double ITCZ' problem. By applying an empirical correction to FWF over the tropical Pacific, the sensitivity of ENSO variability is investigated using the new version(version 1.0) of the NCAR's Community Earth System Model(CESM1.0), which tends to overestimate the interannual variability of ENSO accompanied by large FWF into the ocean. In response to a small adjustment of FWF, interannual variability in CESM1.0 is reduced significantly,with the amplitude of FWF being reduced due to the applied adjustment part whose sign is always opposite to that of the original FWF field. Furthermore, it is illustrated that the interannual variability of precipitation weakens as a response to the reduced interannual variability of SST. Process analysis indicates that the interannual variability of SST is damped through a reduced FWF–salt–density–mixing–SST feedback, and also through a reduced SST–wind–thermocline feedback. These results highlight the importance of FWF in modulating ENSO, and thus should be adequately taken into account to improve the simulation of FWF in order to reduce the bias of ENSO simulations by CESM. | KANG Xianbiao HUANG Ronghui WANG Zhanggui ZHANG Rong-Hua | 2014 | Advances in Atmospheric Sciences2014,31,5: | 8 |
| 2 | Processes Leading to Second-Year Cooling of the 2010–12 La Ni?a Event,Diagnosed Using GODAS显示文摘Isopycnal analyses were performed on the Global Ocean Data Assimilation System(GODAS) to determine the oceanic processes leading to so-called second-year cooling of the La Nina event. In 2010–12, a horseshoe-like pattern was seen,connecting negative temperature anomalies off and on the Equator, with a dominant influence from the South Pacific. During the 2010 La Nina event, warm waters piled up at subsurface depths in the western tropical Pacific. Beginning in early 2011,these warm subsurface anomalies propagated along the Equator toward the eastern basin, acting to reverse the sign of sea surface temperature(SST) anomalies(SSTAs) there and initiate a warm SSTA. However, throughout early 2011, pronounced negative anomalies persisted off the Equator in the subsurface depths of the South Pacific. As isopycnal surfaces outcropped in the central equatorial Pacific, negative anomalies from the subsurface spread upward along with mean circulation pathways, naturally initializing a cold SSTA. In the summer, a cold SSTA reappeared in the central basin, which subsequently strengthened due to the off-equatorial effects mostly in the South Pacific. These SSTAs acted to initiate local coupled air–sea interactions, generating atmospheric–oceanic anomalies that developed and evolved with the second-year cooling in the fall of 2011. However, the cooling tendency in mid-2012 did not develop into another La Nina event, since the cold anomalies in the South Pacific were not strong enough. An analysis of the 2007–09 La Nina event revealed similar processes to the2010–12 La Nina event. | FENG Licheng ZHANG Rong-Hua WANG Zhanggui CHEN Xingrong | 2015 | Advances in Atmospheric Sciences2015,32,3: | 3 |
| 3 | Prevalence of naturally occurring surface gene variants of hepatitis B virus in nonimmunized surface antigen-negative Chinese carriers显示文摘 | Jinlin H Zhanggui W Jinjun C | | 0,,05: | 1 |
| 4 | Synthesis of highly sinterable YAG nanopowders by a modified co-precipitation method显示文摘 | Chen Zhihui Yun Yang Hu Zhanggui | 2006 | J Alloys Compounds2006,433,: | 1 |
| 5 | BaYOBO_(3):A deep-ultraviolet rare-earth oxy-borate with a large second harmonic generation response显示文摘Deep-ultraviolet(UV)nonlinear optical(NLO)crystals with excellent performances are of great importance in laser science and technology.However,to design and synthesize an ideal deep-UV NLO material with a balance between second harmonic generation(SHG)response and UV cut-off edge is still a huge challenge.Herein,a new oxy-borate BaYOBO_(3)(BaYBO)was designed and synthesized by substituting Be^(2+)with Y^(3+)from Sr_(2)Be_(2)B_(2(O_(7).The BaYBO features a stable three-dimensional framework and satisfies the property balance between a large SHG response(~2.6×KH_(2)PO_(4)KDP))and a short UV cut-off edge(<190 nm)as a promising deep-UV NLO candidate.The study of structure-property relationship indicates that the large SHG response of BaYBO is mainly attributed to the coplanar arrangement and large number density of BO_(3 )triangles.These results demonstrate that substituting Be^(2+)with Y^(3+)cations is also a feasible strategy for developing new deep-UV NLO crystals. | Mengen Gao Hongping Wu Hongwei Yu Zhanggui Hu Jiyang Wang Yicheng Wu | 2021 | Science China Chemistry2021,64,7: | 1 |
| 6 | Large LBO crystal growth at 2<ce:hsp sp='0.25'/>kg-level显示文摘 | Zhanggui Hu Ying Zhao Yinchao Yue Xuesong Yu | 2011 | Journal of Crystal Growth2011,,1: | 1 |
| 7 | Flux growth of BaAlBO 3 F 2 crystals显示文摘 | Yinchao Yue Zhanggui Hu Chuangtian Chen | 2008 | Journal of Crystal Growth2008,,6: | 1 |
| 8 | The periodic solutions for a class of coupled nonlinear Klein–Gordon equations显示文摘 | Shikuo Liu Zuntao Fu Shida Liu Zhanggui Wang | 2004 | Physics Letters A2004,,5: | 1 |
| 9 | A new advance in_~El Nio prediction──The next El Nio will occur in 1997-1998显示文摘A statistic model of predicting El Nio based on the multiple regression analysis is developed by using sea surface temperature anomalies in the NINO3 region (5°S-5°N), 90-150°W) as a predictant and the Asian meridional circulation index as the predictors. This model cannot only simulate most of El Nio during 1950-1980 (except for El Nio in 1965), but also hindcast 1982/1983, 1986/1987, 1991/1992 and 1994 El Nio and predict 1997/1998 El Nio six months in advance. At the same time, three different sample series (periods of 1950-1969, 1970-1989, 1950-1989) are used to examine the stability and skill of the statistic model. The models have successfully hindcasted and predicted El Nio before and after the selected samples except for the 1965 El Nio. In addition, the forecast in the El Nio year is clearly superior to that in the following year. The model prediction reaches the lowest skill during March to April. | SONG Jiaxi and WANG Zhanggui National Research Center for Marine Environment Forecasts, Beijing 100081, China | 1998 | Chinese Science Bulletin1998,43,6: | 1 |
| 10 | A new nonlinear optical borate crystal K2 Al2 B2 O7(KAB) 显示文摘 | HU Zhanggui TETSUJI Higashiyama MASASHI Yoshimura | 1998 | Jpn J Appl Phys1998,37,: | 1 |
| 11 | Growth of a new nonlinear optical crystal BaAlBO3F2显示文摘 | HU Zhanggui MASASHI Yoshimura YUSUKE Mori | 2004 | J Cryst Growth2004,260,: | 1 |
| 12 | Hydrothermalgrowth and properties of micro-sized NaYF4doped with rareearth ions显示文摘 | Song Haoliang Long Zhen Hu Zhanggui | 2010 | J Chin Rare Earth Soc2010,28,3: | 1 |
| 13 | Flux Growth of BaAlBO3F2 Crystals 显示文摘 | Yue Yinchao Hu Zhanggui Chen Chuangtian | 2008 | Journal of Crystal Growth2008,310,: | 1 |
| 14 | Hydrothermal growth of KTiOPO_(4) crystal for electro-optical application显示文摘'New'electro-optical(EO)crystals are hard to find,'old'EO crystals are scarce and each has its own problems,and the demand for high-performance EO crystals by higher power,higher repetition rate,and narrower pulse width laser is realistic and urgent.The EO performance of KTP was recognized as soon as it was discovered,but after more than 40 years of development,the reports,and products of EO devices based on KTP are less than those of other EO crystals,even though KTP is now almost the cheapest nonlinear optical crystal material.In this paper,based on our understanding of the crystal structure of predecessors and ourselves,especially the understanding and practice of quasi-one-dimensional ionic conduction mechanism,we think that crystal growth is the most important reason that affects the controllability of crystal performance.Through a series of science and technology,we realize the growth of large-size crystals with high-optical uniformity,then reduce the absorption of KTP to a very low level,and grow crystals with resistance to electric damage and laser damage.On this basis,reducing the conductivity and improving the uniformity of optical,electrical,piezoelectric,and ferroelectric properties are emphasized.The extinction ratio,piezoelectric ringing effect,and thermal influence of the EO switch based on KTP crystal are tested,and some publicly available progress of using KTP EO devices in high-repetition rate laser is listed.Finally,we are looking forward to the development of KTP EO crystal for the laser system to EO generator for integrated optics. | Haitao Zhou Xiaoling He Wenyuan Wu Jingfang Tong Jinliang Wang Yanbin Zuo Yicheng Wu Changlong Zhang Zhanggui Hu | 2023 | Light(Science & Applications)2023,12,1: | 1 |
| 15 | Synthesis of highly sinterable YAG nanopowders by modified co-precipitation method显示文摘 | Chen Zhihui Yang Yun Hu Zhanggui | 2007 | J Alloys Compd2007,433,12: | 1 |
| 16 | Synthesis of Polycrystalline Nd∶YAG Nanopowders Used for Sintering Transparent Ceramics via Gel Combustion显示文摘Polycrystalline nano-sized neodymium doped yttrium aluminum garnet (Nd∶Y3Al5O12, Nd∶YAG) powders were synthesized via a gel combustion method using nitrates and citric acid as starting materials. The evolution of phase composition and micro-structure of the powders were characterized by X-ray powder diffraction, thermogravimetry/differential thermal analysis and scanning electron microscopy. Well-crystallized Nd∶YAG nano-sized powders could be obtained at 950 ℃ for 2 h. The resultant powders are well dispersed, have a relatively narrow size distribution with an average particle size of approximately 50 nm, and show excellent sinterability. These powders can be densified to 99.2% of the theoretical density by HP sintering at 1700 ℃ for 3 h under 20 MPa nitrogen pressure. | Li Xianxue Hu Zhanggui Li Jiangtao | 2006 | Journal of Rare Earths2006,24,z1: | 0 |
| 17 | Technical Specification for Seed Production of Qinzhou Sea Red Rice(Chihe)显示文摘Sea red rice is a geographical indication agricultural product of Qinzhou City.It is suitable for growing in hydrochloric acid field with salinity of 2‰-20‰,and is a green and healthy food positioned in the medium and high-end rice market.The brand of Qinzhou sea red rice started to be established in November of 2019.In this paper,the technical specification for seed production of Qinzhou sea red rice is introduced from the aspects of seed production,breeding and harvest,so as to provide technical support for accelerating the popularization of characteristic varieties and the process of industrialization. | Huisong ZHANG Guoxian SONG Zhanggui HAN Yuxiao HUANG Jinsong ZOU | 2022 | Asian Agricultural Research2022,14,2: | 0 |
| 18 | Special Issue on the 120th Anniversary of Shandong University显示文摘This special issue is committed to celebrating the 120th Anniversary of Shandong University(SDU)(15th October,2021),as well as capturing the most fascinating research works and reviews from all aspects of optics and photonics,including but not limited to,optoelectronic functional crystals,basic science,applied and engineering research and applications. | Haohai Yu Xiangang Xu Zhanggui Hu Jiyang Wang Yicheng Wu | 2023 | Light(Science & Applications)2023,12,6: | 0 |
| 19 | Broadband 1T-polytype tantalum disulfide saturable absorber for solid-state bulk lasers显示文摘1T-polytype tantalum disulfide(1T-TaS_(2)),an emerging strongly correlated material,features a narrow bandgap of 0.2 e V,bridging the gap between zero-bandgap graphene and large-bandgap 2D nonlinear optical(NLO)materials.Combined with its intense light absorption,high carrier concentration,and high mobility,1T-TaS_(2) shows considerable potential for applications in broadband optoelectronic devices.However,its NLO characteristics and related applications have rarely been explored.Here,1T-TaS_(2) nanosheets are prepared by chemical vapor deposition.The ultrafast carrier dynamics in the 400–1100 nm range and broadband NLO performance in the 515–2500 nm range are systematically studied using femtosecond lasers.An obvious saturable absorption phenomenon is observed in the visible to IR range.The nonlinear absorption coefficient is measured to be-22.60±0.52 cm MW-1under 1030 nm,which is larger than that of other typical 2D saturable absorber(SA)materials(graphene,black phosphorus,and MoS_(2))under similar experimental conditions.Based on these findings,using 1T-TaS_(2) as a new SA,passively Q-switched laser operations are successfully performed at 1.06,1.34,and 1.94μm.The results highlight the promise of 1T-TaS_(2) for broadband optical modulators and provide a potential candidate material system for mid-IR nonlinear optical applications. | MENGXIA WANG HAILONG QIU TIANWEN YANG ZHENGPING WANG CHUANRUI ZHAO YUANAN ZHAO TING YU YUYAO JIANG MEILING CHEN YAFEI LIAN GE ZHANG HONGJUN LIU ZHANGGUI HU JIANDA SHAO | 2022 | Photonics Research2022,10,9: | 0 |
| 20 | Responses of CO_2 in surface water in subtropical West Pacific to El Nio event显示文摘In order to investigate the relationships between the change of T CO 2 , Δ P CO 2 and SST, current, upwelling and biological activities during El Nio event in the subtropical Pacific, the responses of T CO 2 and Δ P CO 2 in surface water in the subtropical Pacific during El Nio and La Nina have been simulated using a three dimension carbon cycle model with biota pump. The results of numerical simulations show that T CO 2 in sea water increases with reducing of SST during mature phase of El Nio in the subtropical West Pacific . At the same period ,the Kuroshio in this region was weakened ,the zonal currents were divergence , the upwelling carried the water with high concentrations of CO 2 to the sea surface , so both of T CO 2 and Δ P CO 2 in surface water were increased . But T CO 2 and Δ P CO 2 were decreased during La Nina period. These simulated results confirmed the observations in 1982/1983 , 1986/1987 , 1991/1995 and 1997/1998 El Nio events . | Xing Runan 1, Ma Liming 2, Qiao Ran 2,Wang Zhanggui 21 .TrainingCenterofChineseMeteorologicalAdministration ,Beijing 10 0 0 81,China2 .NationalResearchCenterforMarineEnvironmentalForecasts ,StateOceanicAdministration ,Beijing 10 0 0 81,China | 2001 | Acta Oceanologica Sinica2001,20,1: | 0 |