海湾地区冷凝器取水工程参数研究

水资源的日益短缺影响着人类的生存,制约了人类世界的发展。露水取水作为一种无污染、高效节能的取水方式,其可行性及优越性很早就被人们所发掘。由于海湾地区有着相对较高的温度和湿度,因此被选为露水取水研究的主要地区。基于海湾地区的特定条件,利用工程方程求解软件EES,首先确定了在气象条件为湿度RH=90%、风速v=8 m/s,冷凝器截面面积A=100 m²时冷凝器会产生最大冷凝率;然后在供应最少电力条件下确定出了最优冷凝器尺寸为直径D=1 m、 传热系数U=1.6、弯部数量N=50和表面面积S=1 800 m²。该研究成果对海湾地区冷凝器露水取水有一定的参考意义。     

辽东湾滨海湿地生态系统功能及利用

辽东湾北岸滨海湿地生态系统具有丰富的生物资源、较高的生态价值与环境净化、蓄水防洪等特点和功能。但尚存在植被开发利用不合理、污染严重、人口激增、环境被破坏等问题。应大力发展生态农业、利用湿地滞洪蓄水、改善环境、合理开发旅游资源。     

Mitochondrial Control Region Variability in Mytilus galloprovincialis Populations from the Central-Eastern Mediterranean Sea

The variable domain 1 (VD1) domain of the control region and a small segment of the rrnaL gene of the F mtDNA type were sequenced and analyzed in 174 specimens of Mytilus galloprovincialis. Samples were collected from eight locations in four Central-Eastern (CE) Mediterranean countries (Italy, Croatia, Greece and Turkey). A new primer, specific for the F mtDNA type, was designed for the sequencing procedure. In total 40 different haplotypes were recorded, 24 of which were unique. Aside from the two populations situated in Thermaikos gulf (Northern Aegean, Greece), relatively high levels of haplotype and nucleotide diversity were estimated for both Central and Eastern Mediterranean populations. Eight out of the 40 haplotypes were shared by at least three populations while two of them were found in all populations. Φ_ST and cluster analysis revealed lack of structuring among CE Mediterranean populations with the exception of those located at the Sea of Marmara and Croatian coast which were highly differentiated. Apart from the species’ inherit dispersal ability, anthropogenic activities, such as the repeated translocations of mussel spat, seem to have played an important role in shaping the current genetic population structure of CE M. galloprovincialis mussels.     

迈陈凹陷构造特征与油气勘探方向分析

迈陈凹陷位于北部湾盆地南部坳陷,是北部湾盆地的一个三级构造单元.从迈陈凹陷石油地质条件与各构造单元特征入手,详细讨论了迈陈凹陷断裂演化特征以及构造样式和构造带展布.在此基础上分析了迈陈凹陷油气成藏的主控因素和有利区带、层系.指出了迈陈凹陷可分为四个次级洼陷,其中东1洼流二段烃源岩发育情况最好,其斜坡带发育有大量的构造圈...     

水充填砾石防砂技术在评价井测试中的应用

在渤海CFD32 6油田 ,为防止测试过程中地层出砂曾采用过双层金属绕丝预充填防砂管、金属棉防砂管及大型胶液充填砾石防砂技术 ,但均未取得良好效果。水充填砾石防砂技术在该油田的成功应用 ,解决了以往防砂措施存在的问题 ,并取得了良好防砂效果。由该油田评价井测试期间使用过的胶液充填砾石防砂技术和水充填砾石防砂技术分析对比可知 ,水充填砾石防砂技术适用于勘探评价井     

Estimation of inorganic and organic pollutants in Kuwait groundwaters used in irrigation: a study after the gulf war

Kuwait was invaded on August 2, 1990. Around 700 oil wells were destroyed during the Iraqi aggression. Many septic tanks and drainage systems were destroyed. One of the major concerns following the Iraqi invasion is the possibility of ground water contamination. A study of underground water in Kuwait during the period June to December 1993 with regard to irrigation is presented. Water from four different aquifers were analysed for organics and inorganics. A hydrochemical study of these waters indicated that water from (Su‐123), (E‐15) and (PW‐1OL) are suitable for irrigation. The boron concentration in these plants is less than 1 ppm, making it suitable for sensitive and semisensitive crops. Nickel and vanadium are the major inorganics found in crude oil. No appreciable rise in the concentration of these elements was observed. The concentration of polyaromatic hydrocarbons (PAH) and total organic carbon (TOC) is found to vary from 0.01 to 0.07 ppm and 0.21 to 0.9 ppm. PAH is found to vary with location while TOC is found to vary with time.     

Model for calculating the sustainable building index (SBI) in the kingdom of Bahrain

We have developed a model that allows players in the building and construction sector and the energy policy makers on energy strategies to be able to perceive the interest of investors in the kingdom of Bahrain in conducting Building Integrated Photovoltaic (BIPV) or Building integrated wind turbines (BIWT) projects, i.e. a partial sustainable or green buildings. The model allows the calculation of the Sustainable building index (SBI), which ranges from 0.1 (lowest) to 1.0 (highest); the higher figure the more chance for launching BIPV or BIWT.     

基于生态工程恢复的游湖湾水环境改善效果

苏州游湖湾由于长期围垦养殖以致水体恶化,有必要对游湖湾水产养殖区实施沟通水系、底泥生态疏浚、植被恢复与生物放养等工程进行生态恢复。于2010年4月-2011年2月对修复工程区进行跟踪调查监测。结果表明:工程实施后,游湖水体得到改善,水生植被恢复良好,综合水质标识指数由工程前的Ⅳ类提高到Ⅲ类。生态恢复区内水质明显优于区外水质,生态修复区内DO、透明度比修复区外对照点分别提高了29.92%、25.22%,CODMn、TOC、TP、TN、NO-3-N、NH+4-N比区外对照点分别降低了17.31%、12.13%、46.07%、65.93%、77.72%、60.19%,浮游植物丰度得到控制。     

北部湾经济区计算机类职业教育探讨

北部湾经济区是引领带动广西跨越发展的重要引擎,对计算机类技能人才需求量大,并且要求高,作为中等职业学校计算机类专业课程设置、教学定位迫在眉睫.本文主要阐述广西职校计算机类专业课程的设置、教学定位要依据国策立足于当地发展,立足本校,从学生、市场、教师、证书四项内容设置科学合理的课程计划,更好地为北部湾经济区发展建设服务.     

大位移钻井技术在渤海QHD32-6油田的应用

总结了国家 863-820-09-01海洋大位移钻井技术专题,继 QK17-2油田钻成 4 口大位移水平井以后,在QHD32-6油田又成功地钻成2口水平井,其中,A26H井水平位移2997m,A25H井水平位移1942m。该项目成功地应用了国家 863课题所研究的 6项关键技术,即扭矩摩阻软件的设计和预测技术、水基钻井液钻井技术、可变径稳定器钻井技术、环空压力检测技术、井壁稳定及井眼净化预测技术。同时,还应用了国外先进的大位移井技术:MWD随钻测量技术、LWD随钻测井技术、GST地质导向钻井技术及漂浮接箍下套管技术。在水平井钻井技术经验基础上,指出了今后使用大位移井技术开发油田需要注意的问题,并对今后的技术改进和发展提出了意见和看法。