|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Observations of boundary layer parameters and suspended sediment transport over the intertidal flats of northern Jiangsu, China显示文摘A current-turbidity monitoring system (CTMS) was deployed on the intertidal flat at Wanggang, northern Jiangsu during October 16-17, 2000, to measure the tidal current speeds and seawater turbidities at 5 levels above the seabed. Based upon the logarithmic-prof'de equation, the boundary layer parameters, i.e., u*, Z0 and C60, were obtained for 247 tidal flow velocity prof'des. Around 90% of the profiles were logarithmic according to the critical correlation coefficient. Internal consistency analysis shows that these parameters derived by different methods are consistent with each other. In addition, the height of the bedforms observed is close to the seabed roughness lengths calculated from the velocity prof'des, indicating that the boundary layer parameters obtained can reveal the conditions at the sedimentwater interface on the intertidal flats. Suspended sediment concentrations were obtained from the 5 CTMS turbidity meters using laboratory and in-situ calibrations. The results show that the in-situ calibrated SSCs have a much higher accuracy than the laboratory calibrated ones. Calculation of suspended sediment fluxes on the intertidal flats, with a magnitude of 104 kg/m per spring tidal cycle, indicates that suspended sediment moves towards the northwest, which is reversal to the transport pattern controlled by the southward Northern Jiangsu Coastal Current in the sub-tidal zone and adjacent shallow waters. | WANGYaping GAOShu KEXiankun | 2004 | Acta Oceanologica Sinica2004,23,3: | 17 |
| 2 | Estimation of suspended sediment flux from acoustic Doppler current profiling along the Jinhae Bay entrance显示文摘A Nortek acoustic Doppler current profiler (NDP) was installed on a moving vessel to survey the entrance to the Jinhae Bay on August 22-23, 2001. The current velocity and acoustic backscattering signal were collected along two cross-sections; water samples were also collected during the measurement. The acoustic signals were normalized to compensate for the loss incurred by acoustic beam spreading in the seawater. The in situ calibration shows that a significant relationship is present between suspended sediment concentrations (SSC) and normalized acoustic signals. Two acoustic parameters have been determined to construct an acoustic--concentration model.Using this derived model, the SSC patterns along the surveyed cross-sections were obtained by the conversion of acoustic data. Using the current velocity and SSC data, the flux of suspended sediment was estimated. It indicates that the sediment transport into the bay through the entrance has an order of magnitude of 100 t per tidal cycle. | WANGYaping CHUYongShik LEEHeeJun HANChoongKeun OHByungChul | 2005 | Acta Oceanologica Sinica2005,24,2: | 4 |
| 3 | 显示文摘 | WangJiazhen(王家真) WangYaping(王亚平) YangZhimao(杨志懋) etal | | 稀有金属材料与工程0,,: | 1 |
| 4 | Cloning of rainbow trout (Oncorhynchus mykiss) histone H3 promoter and the activity analysis in rare minnow (Gobiocypris rarus )显示文摘Rainbow trout histone H3 (RH3) promoter was cloned via high fidelity PCR. The cloned RH3 promoter was inserted into a promoter-lacked vector pEGFP-1, resulting in an expression vector pRH3EGFP-1. The linearized pRH3EGFP-1 was microinjected into fertiilzed eggs of rare minnows and the sequential embryogenetic processes were monitored under a fluorescent microscope. Strong green fluorescence was ubiquitously observed at as early as the gastrula stage and then in various tissues at the fry stage. The results indicate that RH3 promoter, as a piscine promoter, could serve in producing transgenic Cyprinoid such as rare minnow. Promoter activity ofRH3, CMV and common carp ^-actin (CA) were compared in rare minnow by the expression of respective recombinant EGFP vectors.The expression of pCMVEGFP occurred earlier than the following one, pRH3EGFP-1, and then pCAEGFP during the embryogenesis of the transgenics. Their expression activities demonstrated that the CMV promoter is the strongest one, followed by the CA and then the RH3. | MAOWeifeng SUNYonghua WANGYaping WUGang CHENShangping ZHUZuoyan | 2004 | Progress in Natural Science:Materials International2004,14,4: | 1 |
| 5 | 显示文摘 | XuAibin(徐爱斌) WangYaping(王亚平) DingBingjun(丁秉钧) | 2009 | 材料研究学报2009,17,2: | 1 |
| 6 | In vitro induced dopaminergic differentiation of expanded rat mesencephalic neural stem cell显示文摘Neural stem cell (NSC) is the progenitor of the neural system with the character of self-renew and hav-ing the potential to differentiate into all the phenotypes in the central nervous system (CNS). NSC may serve as a source of cell transplantation for the treatment of neurodegenerative diseases to replace degenerative neurons. In this study, NSCs derived from E12.5 rat mesencephalon were main-tained and expanded using a serum-free defined medium containing basic fibroblast growth factor (bFGF) and epi-dermal growth factor (EGF). While proliferating, the cells were immunoreactive for nestin and remained multipotent to generate neurons, astrocytes, and oligodendrocytes. After 15 times passage the total number of the cell expanded about 2.4×104 fold. Compared with untreated cultures, ascorbic acid (AA) treatment led to more dopaminergic (DAergic) differentitiation as indicated by the expression of tyrosine hydroxylase (TH). With the concentration increasing, more TH+ neurons were obtained. 100 mmol/L AA could lead to a increase more than 20-fold, and a concentration of 10 靘ol/L could lead to nearly 5-fold increase in TH+ cells. However, the ratio of TH+ cells was not improved any longer with the AA increasing above the concentration of 100 靘ol/L. The results demonstrate that expanded NSCs can be induced to differentiate into dopamine neurons in vitro, which can pro-vide enough cell population for the cell transplantation, as a main intervention for the neurodegenerative diseases such as Parkinson抯 disease. | ZHENGMin WANGDongmei JIAOWenchang LIHaiming ZHAOLianxu BAIChixian WANGYaping PEIXuetao | 2003 | Chinese Science Bulletin2003,48,16: | 0 |
| 7 | Inducing dopaminergic differentiation of expanded rat mesencephalic neural stem cells by ascorbic acid in vitro显示文摘Ascorbic acid (AA) induced differentiation of neural stem cells (NSCs) into dopaminergic (DAergic) neurons is reported. NSCs derived from rat mesencephalon were maintained and expanded in a defined medium containing mitogens of basic fibroblast growth factor (bFGF) and epidermal growth factor (EGF). Compared with the control, ascorbic acid treatment led to more DAergic neuronal differentiation as indicated by the expression of tyrosine hydroxylase (TH) and dopamine transporter (DAT), which are specific markers of dopamine neurons. AA induction also enhanced expression of Nurr1 and Shh. PD98059, an inhibitor of mitogen activated protein kinase/extracellular signal regulated kinase (MAPK/ERK) pathway, could block AA induced Nurr1, TH and DAT mRNA expression. The results might suggest a new strategy to provide enough dopaminergic cells for the therapy of Parkinson’s disease (PD), and Nurr1 and ERK signaling pathway might participate in the AA induced DAergic differentiation. | ZHENGMin WANGDongmei HOULingling LIHaimin XIEChao JIAOWencang BAICixian WANGYaping PEIXuetao | 2004 | Progress in Natural Science:Materials International2004,14,1: | 0 |