PC-E500记录、计算程序在计算机中的存储与调用

介绍将ＰＣ—Ｅ５００程序向计算机存储与调用方法。     

RAPD analysis of wild stock of penaeid shrimp (Penaeus chinensis) in Chinese coastal waters of the Huanghai Sea and coastal waters of the Bohai Sea

Intermsoftheresearchingermplasmandgeneticsofmarineanimals,Chinaseemsquiteweakincomparisonwithotherdevelopedcountries,fortherelevantresearchprogramswereonlyinitiatedinthe1980's.Inrecentyears,moreattentionhasbeendrawntothegermplasmsourcesofmarinevaluableanimalsandsomeresearchprogramshavebeenplannedorundertakeninChina.Abroad,thetechniquessuchaselectrophoresispatternsofisoenzym,RAPDandRFLPhavebeenappliedtotherelevantstudiesongeneticvariationandevolutionaryrelationshipswithinagroupofPenaeidshri…     

波浪作用下粘质粉砂底床性态变化的试验研究

利用不同波高条件下的波浪水槽试验,对现行黄河水下三角洲粘质粉砂底床的性态变化进行了研究.试验中观测了底床土体孔隙水压力的变化和扰动破坏区与未扰动破坏区之间在波浪作用下的性态差异.结果分析表明,土体孔隙水压力受波高要素影响较大;扰动破坏区含水量减小和容重增加现象比未扰动破坏区明显.在扰动破坏区经波浪长时间作用后形成凹坑塌陷,此结果对认识黄河三角洲上凹坑塌陷的形成过程有借鉴意义.     

古老碳酸盐岩古油藏储量计算方法探讨——以四川盆地安岳气田灯影组为例

在古油藏石油储量计算过程中,一般是根据沥青的分布面积确定古油藏面积或者根据古圈闭面积确定古油藏面积,这些方法存在局限性.针对现有确定古油藏石油地质储量方法的缺陷和不足,本文以四川盆地安岳气田震旦系灯影组气藏为例,创建了古油藏储量计算公式,同时建立了古油藏面积与现今气藏面积之间的关系式以及古油藏孔隙度与现今气藏孔隙度之间...     

Estimating genetic parameters with molecular relatedness and pedigree reconstruction for growth traits in early mixed breeding of juvenile turbot

An introduced turbot population was used to establish families and to estimate genetic parameters of the offspring. However, there is a lack of pedigree information, and common environmental effects can be introduced when each full-sib family is raised in a single tank. Therefore, in the genetic evaluation, SSRs(simple sequence repeats) were used to reconstruct the pedigree and to calculate molecular relatedness between individuals, and the early mixed-family culture model was used to remove the impact of the common environmental effects. After100 d of early mixed culture, twenty SSRs were used to cluster 20 families and to calculate paired molecular relationships(n=880). Additive genetic matrices were constructed using molecular relatedness(MR) and pedigree reconstruction(PR) and were then applied to the same animal model to estimate genetic parameters. Based on PR, the heritabilities for body weight and body length were 0.214±0.124 and 0.117±0.141, and based on MR they were 0.101±0.031 and 0.102±0.034, respectively. Cross validation showed that the accuracies of the estimated breeding values based on MR(body weight and body length of 0.717±0.045 and 0.629±0.141, respectively) were higher than those of PR(body weight and body length of 0.692±0.052 and 0.615±0.060, respectively). The MR method ensure availability of all genotyped selection candidates, thereby improving the accuracy of the breeding value estimation.     

2018年5月28日松原MS 5.7地震前热红外亮温异常分析

2018年5月28日吉林松原发生M_S 5.7地震。为了分析松原地震前可能与地震有关的热红外亮温异常,收集了以震中为中心的38°—50°N、116°—134°E范围内,2013年1月1日—2018年6月18日静止气象卫星FY-2G观测的地表亮温资料,应用连续小波变换方法计算了每一个像元的小波相对能谱,得到了分析区域内相对能谱的时、空演化规律。结果显示,地震前1周吉林—丰满断裂周围出现相对能谱值超出背景值的异常现象;且随着地震的临近,异常区域沿着松花江第二断裂带向NW方向扩展,异常幅度随之增大。地震发生后异常幅度及面积继续增大,直至震后1个月异常逐渐消失。含油气盆地地下大量天然气对震前应力的变化较敏感,当应力积蓄到一定程度,盆地周缘的活动构造带及一些微裂隙都是天然气上涌的通道,而溢出地表的甲烷、二氧化碳等温室气体辐射增温效果明显。在震前,盆地出现大片区域的辐射增温异常可能与天然气外泄有关,或许可以解释松原M_S 5.7地震震中位于异常区外边缘的现象。     

Spatio-temporal changes and their relationship in water resources and agricultural disasters across China

Changes in monthly streamflow and the potential influences and feedbacks of agricultural activities are investigated. Significant decreases in streamflow are observed in northern China, including the Yellow, Huaihe and Haihe river basins, while in southern China streamflow increases significantly in the Yangtze, Pearl and South river basins. This spatial pattern of changes in streamflow indicates that the imbalance in water resources between northern (dry) and southern (wet) China has increased during past decades. On the one hand, available water resources are a controlling factor determining the expansion of irrigated land and the structure of crop plantation (i.e. rice, wheat, corn or bean); on the other hand, crop planting structure and effective irrigated areas are important determinants of changes in streamflow. The increasing effective irrigation and rice planting areas in northern China may increase water withdrawal from rivers, causing subsequent decreases in streamflow, while in southeastern China, decreasing effective irrigation areas enhance the increases in streamflow.     

2014—2019年浅源中强地震辐射能量的快速测定

根据地震波衰减特性,采用一维速度模型开展了快速测定辐射能量ES和能量震级Me的方法研究.利用全球地震台网和国家数字测震台网提供的宽频带资料,测定了2014—2019年间MW≥6.0的115次浅源地震的辐射能量和能量震级,将计算结果与其它机构的结果进行对比.结果表明:利用本文方法可在得到地震数据半小时内计算出稳定的Me,...     

西天山特克斯达坂花岗岩基的解体及钼找矿意义

通过详细的岩石学特征、接触关系、地质时代以及含矿性等研究,特克斯达坂岩基可解体为早石炭世库勒萨依序列和早二叠世其那尔萨依序列,其同位素年龄分别为347Ma和291~292Ma,地质调查已证实,两序列间为侵入接触关系。并于解体出的库勒萨依两序中新发现了斑岩型钼矿体。特克斯达坂岩基的解体,客观反映了岩浆活动的特征,不仅为深化区域成矿规律和指导进一步找矿具有重要意义,而且为丰富构造岩石组合资料和探讨本区大地构造演化有重要理论价值。     

基于美国国家地热数据的地热温度计案例分析与方法适宜性评价

热储温度评价是地热系统研究的关键内容.文章选取建设比较成熟的美国国家地热数据系统(National Geothermal Data System,NGDS),分别利用地球化学地热温度计、多矿物平衡法、冷热水混合模型及气体地热温度计对不同地热田的热储温度进行评价,确定不同热储温度评价方法的适用性和局限性,以期为热储温度评...