高湖岩体侵位机制及其对地球化学特征的影响

高湖岩体在岩浆侵位过程中因受控构造发生变换而具有顶蚀与充填两种侵位形式。不同侵位形式将对岩石结构、矿物相对含量与特征 ;Ca、Fe、Si含量 ;轻重稀土比例和流体包裹体类型与温度等方面发生影响 ,使其呈现不同的地球化学特征     

油藏地球化学研究的理论基础与发展趋势

油藏地球化学是一个新兴的地球化学分支学科,是传统的有机和无机地球化学与油藏工程紧密结合的产物。其产生对油气勘探和开发起着重要的作用。本文从油藏非均质性、充注史和流体-岩石相互作用三个方面论述了油藏地球化学研究的理论基础,并简要总结了油藏地球化学近年来的长足发展以及产生的一些新兴研究内容。     

TBP-泡塑填料柱萃取回收铁钍渣浸出液中钍的研究

将ＴＢＰ固定在改性泡塑载体上，用于萃取回收铁钍渣硝酸浸出液中Ｔｈ４＋。试验表明：ＴＢＰ泡塑填料萃取分配比高，萃取容量大，当溶液硝酸浓度为４ｍｏｌ／Ｌ，接触时间１０ｍｉｎ时，萃余液中Ｔｈ４＋浓度小于００１ｍｇ／Ｌ，反萃液中Ｔｈ３＋浓度达８４ｇ／Ｌ，Ｆｅ３＋和Ｃｅ３＋浓度小于０１ｍｇ／Ｌ，萃取容量为ＴＢＰ泡塑填料１ｇ可萃取Ｔｈ４＋０２８ｇ；ＴＢＰ泡塑填料化学性质稳定，分相容易，能有效防止乳化现象。     

Isolated fetal hydronephrosis: Beware the effect of bladder filling

The aim was to assess the role that fetal bladder size has in the determination of fetal hydronephrosis. Forty-three fetuses were evaluated for fetal hydronephrosis in the second trimester of pregnancy. Anteroposterior measurements of the renal pelvis were obtained with a full bladder and again when the bladder emptied in each fetus. Statistical analysis was performed using the Spearman rank order correlation coefficient to assess the relationship between bladder status and renal dilation. The anteroposterior size of the fetal renal pelvis diminished from 6.8 ± 1.8 mm on a full bladder scan to 4.5 ± 1.6 mm when the bladder was emptied (P<0.001). Fifty-three per cent of the fetuses whose renal pelvic measurements were 5 mm or more on a full bladder scan had normal-appearing renal pelvises when their bladders emptied. The status of the fetal bladder should be considered when evaluating fetal hydronephrosis.     

TBP-泡塑填料柱萃取回收铁钍渣浸出液中钍的研究

将ＴＢＰ固定在改性泡塑载体上，用于萃取回收铁钍渣硝酸浸出液中Ｔｈ４＋。试验表明：ＴＢＰ泡塑填料萃取分配比高，萃取容量大，当溶液硝酸浓度为４ｍｏｌ／Ｌ，接触时间１０ｍｉｎ时，萃余液中Ｔｈ４＋浓度小于００１ｍｇ／Ｌ，反萃液中Ｔｈ３＋浓度达８４ｇ／Ｌ，Ｆｅ３＋和Ｃｅ３＋浓度小于０１ｍｇ／Ｌ，萃取容量为ＴＢＰ泡塑填料１ｇ可萃取Ｔｈ４＋０２８ｇ；ＴＢＰ泡塑填料化学性质稳定，分相容易，能有效防止乳化现象。     

可渗透反应墙技术中反应介质的研究进展

以PRBs技术中最为关键的填充反应介质为研究对象，介绍了常用的五种反应介质（零价铁、活性炭、无机矿物、黏土、和以固体废弃物为前体材料的反应介质）的研究现状，阐述了影响反应介质选择的主要因素，同时介绍了PRBs技术在实际工程应用中的典型案例，并对PRBs技术的现存问题和未来发展进行了总结和展望，以期为研发长期高效和环境友好型的PRBs反应介质提供有益的支持.     

加油站爆炸事故的危险性评价

将加油站储罐分为地上储罐和地下储罐两种情况,采用故障树分析法对其爆炸事故进行了定性分析,找出了导致加油站爆炸事故的重要基本事件,提出了加油站爆炸事故的预防措施。     

Modification of an ecosystem model for filling medium-sized gaps in tower-based estimates of net ecosystem productivity

Gap filling of flux data is necessary to assist with periodic interruptions in the measurement data stream. The gap-filling model (GFM), first described in Xing et al. [Xing, Z., Bourque, C.P.-A., Meng, F.-R., Zha, T.-S., Cox, R.M., Swift, E., 2007. A simple net ecosystem productivity model for gap filling of tower-based fluxes: an extension of Landsberg's equation with modifications to the light interception term. Ecol. Model. 206, 250–262], was modified to account for the day-to-day control of net ecosystem productivity (NEP) by incorporating air and soil temperature as new controlling variables in the calculation of NEP. To account for the multiple-phase influences of air and soil temperature on plant growth we model ecosystem respiration as a function of soil and canopy respiration. The paper presents model development in an incremental fashion in order to quantify the contribution of individual model enhancements to the prediction of NEP during periods when air and soil temperature variations are important.     

水热法合成层状化合物α-磷酸锆

用水热法合成了α-Zr(HPO4)2·H2O(α-ZrP)晶体,并采用XRD、IR、TEM和TG-DSC等方法对其进行了表征.结果显示,用该法制得的α-ZrP,具有良好的结晶度,层间距达到7.65 A,平均粒度为900×300nm,呈较规则的六边形薄片状,晶形完美,并具有较高的热稳定性.获得了水热法合成α-ZrP的优化实验条件为磷酸浓度5M-10M和180℃下反应48小时以上.     

浅议砖厂对环境的破坏、污染及其防治对策

通过对哈密市40余家砖厂的调查和监测,分析了红砖生产对土地资源的破坏以及对大气环境造成的污染问题,就加强建设项目环境影响评价审批制度和排污申报登记、污染源监督监测工作,实行环境保护目标责任制,积极进行砖厂复坑复垦提出了必要的防治措施