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Comparison of summer ther- mohaline field and circulation structure of the Bohai Sea between 1958 and 2000

Chinese Science Bulletin 2004年第4期49卷 363-369页

作者： WUDexing WANXiuquan BAOXianwen MULin LANJian InstituteofPhysicalOceanography LaboratoryofPhysicalOceanographyOceanUniversityofChinaQingdao266003China DepartmentofOceanography OceanUniversityofChinaQingdao266003China

The analysis of observed salinity data over 35 years (1961—1996) at four stations around the Bohai Sea, i.e. Huludao, Qinhuangdao, Tanggu and Beihuangcheng, reveals that the salinity of the 4 observation stations has increased 1.1, 1.6, 1.9 and 0.4, respectively. The data also show that over the past 35 years, there have been at least 5 large salin-ity variation processes. The salinity data from two cruises of the Bohai Sea in August 1958 and 2000, show that the salin-ity pattern of the Bohai Sea has changed markedly. Low sa-linity in the sea surface layer around the old Yellow River mouth in August 1958 had been replaced by high salinity in August 2000 and the maximum variation of salinity is over 10.0. In addition, the values and distribution of salinity were almost the same from surface to bottom there in August 2000, but there existed significantly different salinity levels be-tween the surface layer and the deep layer in August 1958. When a comparison is made between the salinity levels of the above-mentioned two years, it is found that the salinity in August 2000 is on average 2.0 higher than that of August 1958 in the main part of the Bohai Sea. The change of tem-perature and salinity field in the Bohai Sea leads to the change of the circulation. The numerical simulation shows that in comparison with the circulation structure of the Bohai Sea in August 1958, the circulation in August 2000 changes markedly. The significant changes of circulation appeared in Bohai Bay, Laizhou Bay and in the middle of the Bohai Sea. The clockwise current loop outside of the Bohai Bay and counterclockwise current loop outside of the Laizhou Bay in August 1958 disappeared in August 2000, and the counterclockwise current loop of the Bohai Bay mi-grated obviously outward. The flow direction in the Laizhou Bay turned 180° around. Corresponding to the variation of the Bohai Sea circulation, the amount of water exchange between the Bohai Sea and the Yellow Sea has also changed. The wa

关键词：热盐区域渤海黄海海水表面盐度海水表面温度 SSS SST

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Communications in Theoretical Physics 2004年第6X期42卷 903-908页

作者： HUANGFei LaboratoryofPhysicalOceanography OceanUniversityofChinaQingdao266003China

The (2+1)-dimensional nonlinear barotropic and quasi-geostrophic potential vorticity equation without forcing and dissipation on a beta-plane channel is investigated by using the classical Lie symmetry approach. Some types of group-invariant wave solutions are expressed by means of the lower-dimensional similarity reduction equations. In addition to the known periodic Rossby wave solutions, some new types of exact solutions such as the ring solitary waves and the breaking soliton type of vorticity solutions with nonlinear and nonconstant shears are also obtained.

关键词：近似还原旋涡势能方程洛斯比波孤波环海洋大气动力学

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The New-generation of Green Surfactant (Alkylpolyglucoside) as an Inhibitor to the Corrosion of 907 Steel in Seawater

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Chinese Chemical Letters 2004年第8期15卷 985-988页

作者： MinDU RongJieGAO PingGONG QingZhangWANG CollegeofChemistryandChemicalEngineering OceanUniversityofQingdaoQingdao266003

Weight-loss trials and potentiodynamic polarization curves have been used to study the inhibitive properties of alkylpolyglucoside (APG) towards the 907 steel in seawater. The inhibition was different, if the length of alkyl chain APG was different. As the result, calcium gluconate, zinc sulfate and APG can protect 907 steel from being corrupted in static seawater. The compound corrosion inhibitor was found to control both the anodic process and the cathodic procesa

关键词： Alkylpolyglucoside(APG) 907 steel inhibitor seawater.

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Volatilization behaviors of diesel oil from the soils

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Journal of Environmental Sciences 2004年第6期16卷 1033-1036页

作者： LIYu-ying ZHENGXi-lai LIBing MAYu-xin CAOJing-hua InstituteofEnvironmentalScienceandEngineering OceanUniversityofChinaQingdao266003China.

The volatilization of diesel oil, Shengli crude oil and 90# gasoline on glass surface of petri dishes were conducted at the ambient temperature of 25℃. Diesel oil evaporates in a power manner, where the loss of mass is approximately power with time. 90# gasoline evaporates in a logarithmic with time. Where as the volatilization of Shengli crude oil fit either the logarithmic or power equation after different time, and has similar R2. And the effects of soil type and diesel oil and water content on volatilization behavior in unsaturated soil were studied in this paper. Diesel oil and water content in the soils play a large role in volatilization from soils. Appropriate water helps the wicking action but too much water stops it. The wicking action behaves differently in four different types of soils in the same volatilization experiment of 18% diesel oil content and air-dry condition.

关键词： volatilization diesel oil power curve

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Estimates of mixing on the South China Sea shelf

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Acta Oceanologica Sinica 2005年第3期24卷 1-8页

作者： ZHANGXiaoqian LIANGXinfeng TIANJiwei LaboratoryofPhysicalOceanography OceanUniversityofChinaQingdao266003China

Mooring observations aimed at understanding the vertical mixing were carried out on the outer shelf of the South China Sea from April to May in 2002. Temporal and vertical distributions of horizontal velocity shear and Brunt- V!is!l! frequencies are calculated with these observations. Dissipation rate and diapycnal diffusivity are then inferred from the fine-scale parameterization. The temporally and vertically averaged dissipation is 15 nW/kg and the associated diapycnal diffusivity is 2×10-5 m2/s. Daily-averaged diapycnal diffusivity is well related to the tides, larger during the spring tide, and smaller during the neap tide. Depth-averaged diapycnal diffusivity, which is as larger as 5×10-5 m2/s during the spring tide, is 8.3 times that of the neap tide, which is only 6×10-5 m2/s. This is in proportion to the vertical energy flux from barotropic tide to baroclinic tide. During the spring tide, the energy flux from the semi-diurnal and diurnal barotropic tide to the internal tide is 160 mW/m, while it is only 35 mW/m during the neap tide. Vertically, monthly-averaged dissipa- tion rate and associated diapycnal diffusivity are large near the upper mixing layer and the bottom boundary. Dissipation rate is about 30￣100 nW/kg, diapycnal diffusivity is about 4×10-5￣10×10-5 m2/s. However, both of them are quite small in the mid column, where dissipation rate is 3￣10 nW/kg and diapycnal diffusivity is 4×10-6￣40×10-6 m2/s.

关键词： tide dissipation diapycnal diffusivity South China Sea

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2-ORDER TURBULENCE CLOSURE PLANKTON ECOSYSTEM DYNAMICS MODEL AND ITS APPLICATION

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Journal of Hydrodynamics 2001年第3期13卷 17-23页

作者： Wan, Zhen-Wen Yuan, Ye-Li Qiao, Fang-Li State Oceanic Administration Qingdao 266003 China

The basic concepts of continuous neurogen dynamics, particle and continuous mass, were cited to describe plankton ecosystems, so a continuous neurogen dynamics model of plankton ecosystem was developed by logically reasoning with less ecological experiential relation. For precise parameterization of diffusion acted on plankton by hydrodynamics, the scheme of 2-order turbulence closure of geophysical fluid dynamics was generalized to enclose the equations of plankon ecosystem dynamics model. This model was applied to simulate a natural ecological process in Jiaozhou Bay. Comparison between simulation and data showed the exciting prognosis ability of this model.

关键词： Ecosystems Mathematical operators Numerical analysis Simulation Turbulence

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Density Functional Theory Study on La Complex with Schiff-base as Building Block

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Chinese Journal of Structural Chemistry 2006年第2期25卷 197-203页

作者： XIA Shu-Wei XU Xiang SUN Ya-Li FAN Yu-Hua BI Cai-Feng ZHANG Dong-Mei YANG Li-Rong Department of Chemistry Ocean University of China Qingdao 266003 China

Quantum density functional theory （DFT） results are reported for the building block [LaL^1（NO3）] of La complex [LaL^1（NO3）]NO3·5H2O （L^1 = （CH3）2CHCH2CH（NCHC4H3O）COO^-）. The structure was optimized and the calculation results show that the lanthanum ion is coordinated by one nitrogen atom and three oxygen atoms of L^1 and two oxygen atoms of nitrate ion. The bond length of La-N is 0.2637 nm and the average length of La-O is 0.2526 nm, which are consistent with the literatures. In addition, the stabilities, electronic structural characteristics and IR spectra of the complex have been analyzed, which describe the coordination of lanthanum ion with other atoms in detail.

关键词： rare-earth Schiff-base lanthanum complex density functional theory

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Neoadjuvant hormone therapy for patients with high-risk prostate cancer:a systematic review and meta-analysis

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Asian Journal of Andrology 2021年第4期23卷 429-436页

作者： Wen Liu Yu Yao Xue Liu Yong Liu Gui-Ming Zhang Department of Urology The Affiliated Hospital of Qingdao UniversityQingdao 266003China Department of Anesthesiology The Affiliated Hospital of Qingdao UniversityQingdao 266003China

This study aimed to identify the pathological outcomes and survival benefits of neoadjuvant hormone therapy(NHT)combined with radical prostatectomy(RP)and radiotherapy(RT)administered to patients with high-risk prostate cancer(HRPCa).We searched PubMed,Embase,and the Cochrane Library for studies comparing NHT plus RP or RT with RP or RT alone,administered to patients with *** used a random-effects model to compute risk estimates with 95%confidence intervals(CIs)and quantified heterogeneity using the I2 *** and sensitivity analyses were performed to identify potential sources of *** selected 16 *** before RP significantly decreased lymph node involvement(risk ratio[RR]=0.69,95%CI:0.56–0.87)and increased the rates of pathological downstaging(RR=2.62,95%CI:1.22–5.61)and organ-confinement(RR=2.24,95%CI:1.54–3.25),but did not improve overall survival and biochemical progression-free survival(bPFS).The administration of NHT before RT to patients with HRPCa was associated with significant benefits for cancer-specific survival(hazard ratio[HR]=0.51,95%CI:0.39–0.68),disease-free survival(HR=0.51,95%CI:0.44–0.60),and bPFS(HR=0.54,95%CI:0.46–0.64).Short-term NHT combined with RT administered to patients with HRPCa conferred significant *** the advantage of local control was observed when NHT was administered before RP,there was no significant survival benefit associated with ***,short-term NHT combined with RT is recommended for implementation in standard clinical practice but not for patients who undergo RP.

关键词： high-risk diseases meta-analysis neoadjuvant hormone therapy prostate cancer prostatectomy radiotherapy

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Cloning and sequence analysis of a full-length cDNA of SmPP1cb encoding turbot protein phosphatase 1 beta catalytic subunit

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Chinese Journal of Oceanology and Limnology 2008年第1期26卷 54-61页

作者：亓飞郭华荣王建 Ocean University of China Qingdao 266003 China

Reversible protein phosphorylation, catalyzed by protein kinases and phosphatases, is an important and versatile mechanism by which eukaryotic cells regulate almost all the signaling processes. Protein phosphatase 1 （PP1） is the first and well-characterized member of the protein serine/threonine phosphatase family. In the present study, a full-length cDNA encoding the beta isoform of the catalytic subunit of protein phosphatase l（PPlcb）, was for the first time isolated and sequenced from the skin tissue of flatfish turbot Scophthalmus maximus, designated SmPPlcb, by the rapid amplification of cDNA ends （RACE） technique. The cDNA sequence of SmPPlcb we obtained contains a 984 bp open reading frame （ORF）, flanked by a complete 39 bp 5＇ untranslated region and 462 bp 3＇ untranslated region. The ORF encodes a putative 327 amino acid protein, and the N-terminal section of this protein is highly acidic, Met-Ala-Glu-Gly-Glu-Leu-Asp-Val-Asp, a common feature for PP1 catalytic subunit but absent in protein phosphatase 2B （PP2B）. And its calculated molecular mass is 37 193 Da and pI 5.8. Sequence analysis indicated that, SmPPlcb is extremely conserved in both amino acid and nucleotide acid levels compared with the PPlcb of other vertebrates and invertebrates, and its Kozak motif contained in the 5＇UTR around ATG start codon is GXXAXXGXXATGG, which is different from mammalian in two positions A6 and G3, indicating the possibility of different initiation of translation in turbot, and also the 3＇UTR of SmPPlcb is highly diverse in the sequence similarity and length compared with other animals, especially zebraf＇lsh. The cloning and sequencing of SmPPlcb gene lays a good foundation for the future work on the biological functions of PP1 in the flatfish turbot.

关键词： protein phosphatase turbot SmPPlcb RACE

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EFFECT OF ALGAE AND WATER ON WATER COLOR SHIFT

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Chinese Journal of Oceanology and Limnology 1991年第1期9卷 49-56页

作者：杨生光夏达英杨小龙赵军 First Institute of Oceanography SOA Qingdao266003 Ocean University of Qingdao 266003

This study showed that the combined effect of absorption of planktonic algae and water on water color shift can be simulated approximately by the exponential function:where are , respectively , extinction coefficients of seawater and chlorophyll -a (concentration is equal to X mg/ m3), and A (nm) is *** empirical regression equation is very useful for forecasting the relation between water color and biomass in water not affected by terrigenous material. The main factor affecting water color shift in the ocean should be the absorption of blue light by planktonic algae.

关键词： algae chlorophyll biomass affecting ocean exponential seawater filtered extinction empirical

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