赤点石斑鱼增生性肾脏病的血液病理观察

血液病理学测定表明，患病赤点石斑鱼Epinephelusakaara组列的血红蛋白平均值约5.49g．（100ml）－1，颗粒白细胞平均值为48．09％，单核细胞平均值为2．82％，健康鱼组列的血红蛋白平均值为7.26g·（100ml）－1，颗粒白细胞平均值为31.33％，单核细胞平均值为0．11％，两组列间有明显差异（p＜0．05）。患病石斑鱼出现较多星个体小、膜薄易破、难着色的异形红细胞；颗粒白细胞的核分叶较多，病鱼表现出严重贫血症状。     

Effect of Salinity on Estimating Geostrophic Transport of the Indonesian Throughflow along the IX1 XBT Section

Geostrophic transport of the Indonesian Throughflow (ITF) is estimated from optimally-interpolated temperature data along a frequently repeated expendable bathythermograph (XBT) section between Fremantle, Australia and Sunda Strait, Indonesia and from two historical temperature-salinity (T/S) relationship products, CSIRO Atlas for Regional Seas (CARS) and Levitus (1982). The annual mean ITF geostrophic transport relative to 400 m during 1984–2001 is estimated to be 4.6 Sv using the CARS T/S relationship, which is about 20% higher than that found using the Levitus T/S relationship. This transport increment is due to the fact that the CARS T/S relationship, which incorporates more recent hydrographic data, better resolves the low-salinity signature of the ITF water. Isothermal averaging in the CARS T/S relationship may also improve representations of the water mass signatures in deep layers.     

Expression, purification and polyclonal antibody generation of p23, an Hsp90 cochaperone, in the amphioxus Branchiostoma belcheri

1Introduction p23, the 23-kDa protein originally identified asa component of the complex of heat shock protein 90(Hsp90) with the progesterone receptor (Johnson etal., 1994), is a ubiquitous and highly conservedprotein from yeast to humans (Garcia -Ranea …     

Simplified procedure for laterally loaded drilled shafts in spatially random clays

Abstract

In this article, a simplified approach for the reliability-based design of laterally loaded drilled shafts considering the spatial variability of soil property is presented. This simplified approach utilizes a conventional reliability method implemented using the variance reduction technique. An algorithm for back-calculating the reduction factor and characteristic length for various shaft slenderness ratios is proposed. This simplified approach can yield responses for drilled shafts that are equivalent to those obtained using random field modeling (RFM), which is a far more complex process. The simplified approach does not require the knowledge of random field theory and can be an efficient design tool in geotechnical engineering practice.     

锆石平均阳离子半径的变化趋势及其在判别形成环境中的意义

计算了变南成因和岩浆成因锆石从晶体核部至边缘的平均离子半径,发现它们的变化存在规律性,作者认为这种规律性同锆石结晶时岩浆或母岩的温夺条件变化密切相关,论述了用锆石平均阳离子半径变化趋势来判别其结晶ＰＴ条件变化趋势的方法及可能性。     

基于T2WELL的U型地热井供暖潜力数值模拟

为了了解U型井式闭循环地热系统的可持续利用能力,探究场地内利用U型井式闭循环地热系统开发地热能用于供暖的可行性,以及地热井长期运行下的产能状态和不同影响因素的作用规律,设计合理的地热能开采方案。采用数值模拟方法,以邯郸东部平原地区试验井的短期实测数据为基础,以多相多组分井筒-储层耦合流动模拟程序T2WELL为工具,开展场地尺度U型井长期换热数值模拟。研究结果显示：U型井式闭循环地热系统水平井段长度为400～500 m,循环流速和注入温度分别设置为80 m3/h和20 ℃左右时,可以实现地热能的可持续开采,20 a平均提热功率能满足供暖需求,采用该种方式进行供暖具备较高的可行性。      

Analysis of groundwater level trend in Jakham River Basin of Southern Rajasthan

Groundwater accounts for about half of the water use for irrigation in India.The fluctuation pattern of the groundwater level is examined by observing rainfall replenishment and monitoring wells.The southern part of Rajasthan has experienced abrupt changes in rainfall and has been highly dependent on groundwater over decades.This study presents the impact of over-dependence on groundwater usage for irrigation and other purposes,spatially and temporally.Hence,the objective of this study is to examine the groundwater level trend by using statistical analysis and geospatial technique.Rainfall factor was also studied in groundwater level fluctuation during 2009-2019.To analyze the influence of each well during recharge or withdrawal of groundwater,thiessien polygonswere generated from them.In the Jakham River basin,75 wells have been identified for water level trend study using the Mann-Kendall statistical test.The statistics of trend analysis show that 15%wells are experiencing water level decline in pre-monsoon,while very low percentage of wells have such trend during post-monsoon season.The average rate of water level decline is 0.245 m/a in pre-monsoon and 0.05 m/a in post-monsoon.The aquifer recharge potential is also decreasing by year.it is expected that such type of studies will help the policy makers to adopt advanced management practices to ensure sustainable groundwater resource management.     

基于新表面理论的TBM破岩效率评价指标

岩碴是岩-机作用的直接产物,也是评价隧道掘进机（TBM）破岩效率和优化TBM掘进参数的有效指标。依托兰州水源地建设工程和龙岩万安溪引水工程,开展不同岩性条件下TBM岩碴筛分试验,得到了岩碴粒径分布规律。基于新表面理论,从滚刀破岩能量转化角度出发,提出了一种新的TBM破岩效率评价指标。基于岩碴粒径分布规律和TBM掘进参数统计,探讨了新表面理论指标与比能、岩碴粗糙度指数之间的关系,指出了新表面理论指标在反映岩碴破碎程度和评价TBM破岩效率方面的优势。对新表面理论指标与TBM掘进推力以及刀间距s与贯入度p的比值进行回归分析,得到了硬岩（围岩等级为Ⅱ级）和软岩（围岩等级为III级）掘进条件下的TBM最优掘进推力和s/p取值区间。研究表明：（1）新表面理论指标符合岩石破碎学原理,可准确评价TBM破岩效率。岩碴越是破碎,新表面理论指标越大,掘进能耗越高,此时TBM破岩效率相对较低。（2）新表面理论指标与比能、岩碴粗糙度指数均具有良好的线性相关关系。岩碴越是破碎,破碎单位体积岩石的能量消耗越大,新表面理论指标越大,对应的粗糙度指数越小。软岩掘进条件下TBM掘进比能低于硬岩,而岩碴破碎程度高于硬岩。（...     

非均质裂隙介质中重非水相流体运移

由于裂隙介质具有强烈非均质性,使得重非水相流体(DNAPLs)在裂隙介质中的运移行为较孔隙介质更为复杂.基于指示模拟算法模拟裂隙介质的二元变量(粗糙面接触和裂隙开口),综合模拟退火算法构建裂隙渗透率随机场.采用T2VOC模拟DNAPLs在裂隙介质的运移,探讨粗糙面接触的相关长度、各向异性比、倾角以及非均质性程度对DNAPLs运移分布的影响.数值分析结果表明,粗糙面接触的相关性越差,DNAPLs污染范围越大;粗糙面接触的各向异性比和倾角增大,将导致更多DNAPLs残留;而相关长度和各向异性比增大以及倾角减小,都会引起DNAPLs锋面运移速率增大;随着渗透率非均质性增强,会导致局部粗糙面接触上蓄积的DNAPLs饱和度增大,运移速率减小.     

基于 C＃的 CORS 数据预处理

针对CORS数据预处理的不可视性和繁琐性问题,综合 T EQC和QCVIEW的优势,用C＃编程实现了CORS数据预处理的可视化和便捷化。详细论述了程序的设计思路,并对预处理结果数据进行了对比分析,证明该程序可以有效改善CORS观测数据的质量,并有助于进行数据质量评价。