皱纹盘鲍对氯霉素的通透性吸收与扩散

在海水溶液中的氯霉素分子可以越过皱纹盘鲍Ｈａｌｉｏｔｉｓ ｄｉｓｃｕｓ ｈａｎｎａｉ Ｉｎｏ的体表结构进入其血淋巴液中。鲍血淋巴液中氯霉素的浓度与药浴液的氯霉素浓度，温度均呈线性关系，药浴时间的效应表现的Ｓ形逼近曲线。在２０℃的海水中，鲍血淋巴液中的氯霉素向体外扩散的半衰期为４２ｍｉｎ。     

Frequency-selective attenuation of sound propagation and reverberation in shallow water

Ｆｒｅｑｕｅｎｃｙ－ｓｅｌｅｃｔｉｖｅ　ａｔｔｅｎｕａｔｉｏｎ　ｏｆ　ｓｏｕｎｄ　ｐｒｏｐａｇａｉｏｎ　ａｎｄ　ｒｅｖｅｒｂｅｒａｔｉｏｎ　ｉｎ　ｓｈａｌｌｏｗ　ｗａｔｅｒTXＦｒｅｑｕｅｎｃｙ－ｓｅｌｅｃｔｉｖｅａｔｔｅｎｕａｔｉｏｎｏｆｓｏｕｎｄｐ...     

Anomalous change of the Antarctic sea ice and global sea level change

ＡｎｏｍａｌｏｕｓｃｈａｎｇｅｏｆｔｈｅＡｎｔａｒｃｔｉｃｓｅａｉｃｅａｎｄｇｌｏｂａｌｓｅａｌｅｖｅｌｃｈａｎｇｅ￥ＸｉｅＳｉｍｅｉ;ＺｏｕＢｉｎｇ;ＷａｎｇＹｉａｎｄＢａｏＣｈｅｎｇｌａｎ（１．ＮａｔｉｏｎａｌＭａｒｉｎｅＥｎｖｉｒｏｎｍｅｎｔＦ...     

Geochemistry and environment evolution of Core E in the Laizhou Bay since last stage of Middle Pleistocene

IwrincrIONOn the evolution of palcoenvironment, salt-water encroachmnt and the distributionof subsurface brine in the LaizhOu Bay area, many researches had been carried out, and muchknowledge abeut the gcolOgical features in this area since Late QUaternary was aCquired' ) (H8nand Wu, l992; Han and Meng, l994; Wen et al. l989). However there was IittIe studyon the sediment geOChemical characteristics since Quaternary. In this Paper, the element strati-graphic characteristics and evolut…     

海带中细胞激动素的纯化分离方法

海带样品于 2 0 0 1年采自青岛太平角海湾 ,用三种不同方法处理样品 ,通过对实验方法及条件的筛选 ,确立了提取、纯化和分离海带中细胞激动素的方法步骤和流程。结果表明 ,最佳方法的基本步骤为 :( 1 )用甲醇∶水∶醋酸 ( 70∶ 30∶ 3,V/V/V)从海带组织中提取出细胞激动素 ,再用PVPP柱去除提取液中的酚类和其他杂质 ;( 2 )将提取液通过连在一起的PVPP柱、DEAE柱和C1 8柱 ,以纯化样品并同时从自由基、核苷、核苷酸和葡糖苷型细胞激动素混合物中分离出核苷酸型细胞激动素 ;( 3)用接有氨基柱的正相液相色谱进一步将葡糖苷型细胞激动素分离出来 ;( 4 )用C1 8液相色谱柱分离其他各种细胞激动素     

水面皮层破坏-复原过程的实验室模拟研究

依据水面红外发射和红外遥感测温原理，采用HDG－高灵敏度红外测温仪和常规测量仪器相结合的方法，在实验室空气稳定条件下，模拟测得了水面皮层破坏－复原（重建）的热力过程和气－水温差对水面皮层复原过程的影响，获得了大量的测量数据。数据分析表明，当气－水温差从3．0℃变为11．5℃时，水面皮层破坏可导致皮温增量从气－水温差3．0℃时的0．15℃变到11．5℃时的0．45℃，并发现恢复时间与气－水温差呈负线性关系。     

几种药物治疗对虾聚缩虫病试验

本文报道了1990年在平湖对虾养殖场用几种药物治疗聚缩虫病所做的试验。结果表明,高锰酸钾和新洁尔灭的疗效较为显著。     

中华绒螯蟹人工半咸水工厂化育苗试验研究报告

在盐度为14—19‰的人工海水中,温度20—25℃条件下,189只平均体重100g的抱卵亲蟹产蚤状幼体4025万只。布苗密度为50—100万只/m~3为宜。必须经常换水,保持水质良好。人工饵料以单胞藻和丰年虫无节幼体为主,可适当加喂蛋黄。     

A new efficient 3D non-hydrostatic free-surface flow model for simulating water wave motions

A new three-dimensional, non-hydrostatic free surface flow model is presented. For simulating water wave motions over uneven bottoms, the model employs an explicit project method on a Cartesian the staggered gird system to solve the complete three-dimensional Navier–Stokes equations. A bi-conjugated gradient method with a pre-conditioning procedure is used to solve the resulting matrix system. The model is capable of resolving non-hydrostatic pressure by incorporating the integral method of the top-layer pressure treatment, and predicting wave propagation and interaction over irregular bottom by including a partial bottom-cell treatment. Four examples of surface wave propagation are used to demonstrate the capability of the model. Using a small of vertical layers (e.g. 2–3 layers), it is shown that the model could effectively and accurately resolve wave shoaling, non-linearity, dispersion, fission, refraction, and diffraction phenomena.     

Sea surface temperature variations in the southwestern South China Sea over the past 160 ka

Sea surface temperatures (SSTs) in the southwestern South China Sea have been reconstructed for the past 160 ka using the Uk37 paleothermometer from the core MD01-2392. The temperature differences between glacial times (MISs 6 and 2) and interglacial times (MISs 5.5 and 1) are 2.2~2.5 ℃. Younger Dryas event during the last deglaciation was documented in both the planktonic foraminiferal δ18O and SST records. After MIS 5.5, SSTs displayed a progressive cooling from 28.6 to 24.5 ℃, culminating at the LGM. During this gradual cooling period, warm events such as MISs 5.3, 5.1 and 3 were also clearly documented. By comparison of SST between the study core and Core 17954, a pattern of low or no meridional SST gradients during the interglacial periods and high meridional SST gradients during the glacial periods was exhibited. This pattern indicates the much stronger East Asian winter monsoon at the glacial than at the interglacial periods. Spectral analysis gives two prominent cycles: 41 and 23 ka, with the former more pronounced, suggesting that SSTs in the southern SCS varied in concert with high-latitude processes through the connection of East Asian winter monsoon.